5,668 results on '"Vineet Kumar"'
Search Results
2. Assessment of Bone Thickness at the Infra Zygomatic Crest Region for Various Orthodontic Miniscrew Implant (OMSI) Insertion Angles: A Cone-Beam Computed Tomographic Study
- Author
-
Jitendra Sharan, Atul Bajoria, Ashok Kumar Jena, Pallawi Sinha, Arunachalam Shivakumar, Vineet Kumar Kamal, and Anand Marya
- Subjects
bone thickness ,cone-beam computed tomography ,infrazygomatic crest ,orthodontic miniscrew implant ,Dentistry ,RK1-715 - Abstract
Objective: To evaluate the infrazygomatic crest (IZC) bone and develop guidelines for the optimum placement of orthodontic miniscrew implants (OMSIs) along the distobuccal root of the permanent maxillary first molar. Methods: Bone thickness of the IZC region of 50 young adults (25 males and 25 females) aged 18-30 years were evaluated using cone-beam computed tomography images. The infrazygomatic bone thickness along the distobuccal root of the permanent maxillary first molar was assessed at various insertion angles (40° to 75° i.r.t the maxillary occlusal plane) with an increment of 5°. Student’s t-test was used to compare the IZC bone thickness and height at the orthodontic miniscrew insertion site for males and females on the right and left sides. Results: The bone thickness of the IZC region above the distobuccal root of the permanent maxillary first molar was estimated between 4.39±0.25 mm and 9.03±0.45 mm for insertion angles from 40° to 75° to the maxillary occlusal plane. The corresponding OMSI insertion heights were 17.71±0.61 mm to 13.69±0.75 mm, respectively, above the maxillary occlusal plane. There were statistically significant gender and side-wise variations in bone thickness at the IZC area and insertion height. Conclusion: The safe position for OMSI placement at the IZC was 13.69-16 mm from the maxillary occlusal plane with an insertion angle between 55° and 75°. These parameters provide the optimum placement of OMSIs along the distobuccal root of the permanent maxillary first molar.
- Published
- 2024
- Full Text
- View/download PDF
3. Comparison of Reconstruction of Maxilloalveolar Resections in Head and Neck Cancers with Chimeric Anterolateral Thigh Flap (ALT) versus Standard ALT Flap
- Author
-
Vineet Kumar, Samreen Jaffar, Mayur Mantri, Ameya Bindu, Saumya Mathews, Dushyant Jaiswal, and Vinay Kant Shankhdhar
- Subjects
maxilloalveolar resections ,chimeric flaps ,free anterolateral thigh flap ,head and neck cancer ,head and neck reconstruction ,Surgery ,RD1-811 - Abstract
Background Oral malignancy that presents at a locally advanced stage needs complex surgical resections in which the maxillary cavity is usually left open. The constant maxillary secretions lead to problems like poor healing, fistula formation, and flap necrosis, causing longer hospital stays, delayed adjuvant therapy, and additional surgeries. Several methods have been tried to ameliorate this, each faced with its own difficulties. This study describes the use of chimeric free anterolateral thigh (ALT) with vastus lateralis (VL) muscle to tackle this problem.
- Published
- 2024
- Full Text
- View/download PDF
4. Exploring time-killing and biofilm inhibition potential of bioactive proteins extracted from two varieties of Pleurotus ostreatus
- Author
-
Reena Gangwar, Mohamed M. Salem, Vineet Kumar Maurya, Mounir M. Bekhit, Nisha Singh, Amro Abd Al Fattah Amara, Ram Kumar Sahu, and Mohamed A. Ibrahim
- Subjects
bioactive peptides ,Pleurotus ostreatus ,time-kill ,antihemolytic ,antimicrobial ,antibiofilm ,Microbiology ,QR1-502 - Abstract
IntroductionDental caries, caused by oral microbial pathogens, are a global health concern, further exacerbated by the presence of methicillin-resistant Staphylococcus aureus (MRSA). Bioactive proteins and peptides (BAPs) exhibit potent antimicrobial properties, targeting multiple cellular mechanisms within pathogens, reducing the likelihood of resistance development. Given the antimicrobial potential of BAPs, this study aimed to compare the efficacy of BAPs extracted from cultivated (Pleurotus ostreatus, PoC) and wild (Pleurotus ostreatus, PoW) mushrooms against pathogens responsible for dental caries.MethodsBAPs were extracted from both PoC and PoW using a TCA-acetone method. Antimicrobial activities were tested against seven bacteria and one fungus using agar well diffusion and MIC determination. Antibiofilm activity was assessed via modified CV assay, while DPPH and erythrocyte lysis tests evaluated free radical scavenging.ResultsPoC showed superior antimicrobial efficacy, with lower MIC and MBC values, and disrupted biofilm integrity at increasing concentrations. PoW exhibited better antioxidant activity with higher DPPH scavenging, though its antimicrobial efficacy was slightly lower than PoC.DiscussionBoth PoC and PoW BAPs inhibited dental pathogens, with PoC showing stronger inhibition against MRSA and nystatin-resistant Candida albicans. This suggests BAPs may target additional cellular mechanisms beyond membranes, PBPs, and ergosterols. Despite PoW’s stronger antioxidant properties, both BAPs had comparable antibiofilm activity. These findings suggest complementary actions of BAPs from PoC and PoW both, in treating dental caries, offering broad-spectrum antimicrobial and antioxidant benefits.
- Published
- 2024
- Full Text
- View/download PDF
5. Metabolic syndrome among marginalised school-going adolescents: a call for clarity
- Author
-
Ajeet Singh Bhadoria, Archisman Mohapatra, Vineet Kumar Pathak, and Mohan Kumar
- Subjects
Public aspects of medicine ,RA1-1270 - Published
- 2024
- Full Text
- View/download PDF
6. High plasma magnesium and phosphorus levels and their correlation with struvite urolithiasis in buffaloes
- Author
-
Ashwani Yadav, Vineet Kumar, Jeny K. John, Surbhi K. Tyagi, and V. Malik
- Subjects
Fourier-transform infrared spectroscopy ,Neutrophil-to-lymphocyte ratio ,Struvite ,Urolithic buffaloes ,Chemistry ,QD1-999 - Abstract
Background: Urolithiasis is a common urinary tract disease in buffaloes, almost exclusively affects young males, and has significant economic and production impacts. We have investigated hemato-biochemical and urinary changes in an attempt to deduce their correlation with struvite urolithiasis in buffaloes. Methods: Ten male buffalo calves with obstructive urolithiasis were used. Blood samples were used for hematology and elemental analysis. Urine samples were used for physico-chemical examination, microscopy, and elemental analysis. Uroliths were subjected to chemical functional group determination using the FTIR spectroscopy. Results: The mean neutrophil, leukocyte, and neutrophil-to-lymphocyte ratio was significantly (p < 0.05) higher in urolithic buffaloes than in healthy controls. The mean blood calcium and magnesium concentrations were significantly (p < 0.05) lower and higher in urolithic buffaloes than in healthy controls, respectively. Mean blood phosphorus concentration and calcium-phosphorus ratio were found to be non-significantly (p > 0.05) higher and lower in urolithic buffaloes than in healthy controls, respectively. The urine pH was highly alkaline. Multiple prismatic lid-shaped crystals, along with erythrocytes, leukocytes, and epithelial cells, were found in urine. The mean urinary magnesium and phosphorus concentrations were non-significantly (p < 0.05) higher in urolithic buffaloes than in healthy controls. A positive correlation of magnesium (r = 0.864, p = 0.001) and phosphorus (r = 0.849, p = 0.002) concentrations between the blood and urine was observed in urolithic buffaloes. The FTIR spectra of uroliths were similar to those of magnesium ammonium phosphate hexahydrate, MgNH4PO4·6H2O or struvite. Conclusion: The findings suggest that high plasma magnesium and phosphorus concentrations have a positive correlation with struvite urolithiasis in buffaloes.
- Published
- 2024
- Full Text
- View/download PDF
7. Telemedicon 2023: Emerging Technologies Connecting Indian Healthcare System
- Author
-
Vivek Singh Malik, Vineet Kumar, and Meenu Singh
- Subjects
Medicine - Published
- 2024
- Full Text
- View/download PDF
8. Prevalence and factors associated with cyberbullying among adolescents (15–19 years) in Gurugram District – A community based cross-sectional study
- Author
-
Vineet Kumar Pathak, Saparya Tripathi, Mohan Kumar, Sunil Kumar Panigrahi, Rohit Sohkey, Apila Kadian, Madhulekha Bhattacharya, and Namrta Jha
- Subjects
addiction ,adolescents ,bullying ,cyberbullying ,depression ,mental health ,policy ,Psychiatry ,RC435-571 - Abstract
Background: Digitalization in the form of increased Internet use through screen media has also shown its ramification like cyberbullying. They are aggressive acts with the intention or motivation to harm another person through technology. The aim is to study the prevalence of cyberbullying and its association with mental illness in the adolescent age group (15–19 years). Methods: This community-based cross-sectional study was rolled out among adolescents aged 15–19 years. A total of 387 were given a semistructured interviewer-administered questionnaire consisting of general details, cyberbullying victimization, and offending questions, PHQ-9 and GAD-7. Results: The mean (SD) age was 16.8 (1.3) years. More than half (53.2%) were males, and nearly three-fourths (74.4%) were school-going. Around 28.2% reported being cyberbullied at least once in their lifetime. About 7.0% of adolescents were cyberbullied more than once, and 0.8% more than five times in the past 30 days. The most common ways were posting a mean or hurtful picture (31.9%) and the concerned person’s comments (24.2%) online. Multivariable logistic regression analysis found that adolescents attending colleges (AOR 1.9, 95% CI 1.1 to 3.4), using tobacco (AOR 2.5, 95% CI 1.4 to 4.5), and depressed (of any severity, AOR 2.0, 95% CI 1.1 to 4.3) were at significantly increased risk of being cyberbullied (P < 0.05). Conclusion: The prevalence of cyberbullying among adolescents aged 15–19 is notable, with significant associations found between cyberbullying and attending college, tobacco use, and depression. Understanding the correlates of cyberbullying can inform targeted interventions to support mental health and well-being among adolescents.
- Published
- 2024
- Full Text
- View/download PDF
9. Erosive wear and topographical study of zinc-aluminum based composite reinforced with in-situ formed ZrB2 particles
- Author
-
Vineet Kumar, Lalit Ranakoti, Gaurav Gautam, Akashdeep Negi, and Tej Singh
- Subjects
ZA composite ,ZrB2 ,In-situ stir casting ,Mechanical properties ,Slurry erosion ,Technology - Abstract
The present study deals with the erosive wear behaviour of a zinc-aluminum (ZA) alloy and composite in the slurry medium. The effects of reinforcement of zirconium diboride (ZrB2) particles in ZA alloy, as well as the impingement angle and duration of erosion wear responses have been studied. The slurry composition was prepared with 1.5 L of water and 500 g silica of a size range of 350–450 μm. The erosion tests are performed at a speed of 600 rpm for varying durations (20–80 h) and impingement angles (30°–90°). The erosive wear responses of the samples have been analyzed in terms of distinct features of their micro constituents like ZrB2 and the material removal mechanism in a prescribed set of conditions. A significant decrease in composite erosion compared to ZA alloy has been observed. With increased duration, both alloy and composite show increased erosive wear. Obtained results revealed that the composite shows 60–80 % less erosive wear than ZA alloy on operating conditions. The optimum results in wear have been observed at 45° for alloy and 60° for composite. Investigating topographical aspects using scanning electron microscopy and atomic force microscopy revealed that ZrB2 reinforcements resulted in smoother topography and reduced erosive wear.
- Published
- 2024
- Full Text
- View/download PDF
10. Carrier frequency of autosomal recessive disorders CVM and DUMPS in Sahiwal and Holstein Friesian cattle in Chhattisgarh
- Author
-
VINEET KUMAR, ASIT JAIN, TRIPTI JAIN, KISHORE MUKHERJEE, AAKANKSHA RATHORE, KAISER PARVEEN, and FARHEEN ANSARI
- Subjects
CVM, DUMPS, Genetic disorders ,Animal culture ,SF1-1100 - Abstract
In the present study, genetic screening of Sahiwal and Holstein Friesian (HF) cattle and its crosses was conducted using the PCR-RFLP technique to detect the presence of CVM and DUMPS disorders. Genomic DNA was extracted from 50 Sahiwal and 100 HF animals and its crosses using commercially available kits. Gene-specific primers were utilized for in vitro amplification of SLC35A3 and UMPS genes by PCR, followed by RFLP analysis using PstI and AvaI restriction endonucleases for CVM and DUMPS, respectively. Subsequently, the PCR products were purified and sequenced to confirm any mutations in the DNA target sequences. Notably, no affected or carrier animals for CVM and DUMPS disorders were identified among the screened animals. Thus, the gene and genotype frequency of CVM and DUMPS carriers was zero, indicating a 100% frequency of normal animals. The study underscores the importance of continued screening for these genetic disorders, involving a larger sample size across the state, and advocates for mandatory screening before utilizing animals for breeding purposes, in adherence to minimum standard protocols.
- Published
- 2024
- Full Text
- View/download PDF
11. Green synthesis of TiO2-Al2O3-ZnFe2O4 nanocomposite using the Hibiscus rosa sinesis and evaluation of its photocatalytic applications
- Author
-
Mandeep Kaur, Jaspreet Singh, Moondeep Chauhan, Vineet Kumar, and Kulvinder Singh
- Subjects
Tri-metal ferrites ,Green synthesis ,Photocatalysis ,Methylene blue ,Hexavalent chromium ,Antioxidant ,Clay industries. Ceramics. Glass ,TP785-869 - Abstract
Use of the green approach for the synthesis of nanoparticles has gained significant interest in the field of nanotechnology. The applicability of greener nanomaterials in environmental remediation has unveiled their tremendous properties and potentiality to eradicate the pollutants from nature in ecofriendly manner. In the present paper, we proposed synthesis of TiO2-Al2O3-ZnFe2O4 nanocomposites using flower extract of Hibiscus rosa sinesis via hydrothermal approach. The synthesized product was characterized by several optical and morphological techniques i.e. Field emission scanning electron microscope, X ray diffraction, energy dispersive spectroscopy, Fourier transform infrared spectroscopy and Brunauer Emmett Teller. To conclude, Field emission scanning electron microscope reveals the nanostructures are of 40-130 nm size. X ray diffraction reveals the presence of rutile TiO2 and hexagonal Al2O3 along with ZnFe2O4 crystallites. Barrett-Joyner-Halenda model reveals that the pore volume and pore diameter were found to be 38.206 m2/g, 0.048 cc/g and 3.640 nm, respectively. TiO2-Al2O3-ZnFe2O4 have shown photocatalytic degradation of methylene blue (96.54 ± 1.24%.), industrial sample (88.52 ± 0.64), and heavy metal hexavalent chromium (94.7 ± 3.20%) in the presence of sunlight. Besides, the synthesized product exhibited good antioxidant properties (84 ± 2.1%) against 2,2-diphenyl-1-picrylhydrazyl.
- Published
- 2024
- Full Text
- View/download PDF
12. Fibrous dysplasia of sphenoid wing with secondary aneurysmal bone cyst: a rare case report
- Author
-
Krishan Kumar Vashisth, Kaif Mohammad, Prevesh Kumar Sharma, Deepak Kumar Singh, Vineet Kumar Mishra, and Praveenkumar Nagendra Sangolli
- Subjects
Aneurysmal bone cyst ,Sphenoid wing ,Temporal ,Fibrous dysplasia ,Surgery ,RD1-811 ,Neurosciences. Biological psychiatry. Neuropsychiatry ,RC321-571 - Abstract
Abstract Background An aneurysmal bone cyst is a locally destructive benign lesion affecting mostly the long bones. Aneurysmal bone cyst of the skull bones is a very rare phenomenon and the involvement of the sphenoid bone of the skull with extension into the orbit is even rarer. We present a case of 15-year-old adolescent with fibrous dysplasia of the sphenoid wing with secondary aneurysmal bone cyst. Case presentation A 15-year-old male presented to us with chief complaints of headache with swelling in the left temporal region of the face and proptosis of the left eye associated with decreased vision for the past 2 months. NCCT showed a large heterogeneous mass in the left temporal region extending into left orbit. Gadolinium-enhanced MRI showed a well-defined multiloculated osteo-expansile lesion in the left middle cranial fossa extending into the anterior cranial fossa consistent with the fibrous dysplasia of the sphenoid bone with associated aneurysmal bone cyst. Digital subtraction angiography brain to look for any feeders to the lesion was done followed by microsurgical gross total excision of the tumor. The histopathology report confirmed it to be fibrous dysplasia secondary to aneurysmal bone cyst. Conclusion Aneurysmal bone cyst is a rare entity, commonly affecting the long bones of the body. The involvement of sphenoid wing of skull is very rare occurrence. It can be primary or secondary to fibrous dysplasia, chondroblastoma, giant cell tumor, fibromyomas, etc. Fibrous dysplasia with secondary aneurysmal bone cyst should be kept in mind as one of the differential diagnoses while dealing with osteolytic bone lesions of skull.
- Published
- 2024
- Full Text
- View/download PDF
13. DIEP Flap for Head and Neck Reconstruction: An Underutilized Option!
- Author
-
Dushyant Jaiswal, Firoz Borle, Saumya Mathews, Mayur Mantri, Vineet Kumar, Ameya Bindu, Prabha Yadav, and Vinay Kant Shankhdhar
- Subjects
DIEP flap ,HN reconstruction ,large defects ,musculocutaneous rectus abdominis flaps ,Surgery ,RD1-811 - Abstract
Background The deep inferior epigastric artery perforator (DIEP) flap is a workhorse flap for breast reconstruction. Its use for head and neck (HN) reconstruction is rare. Abdomen provides a donor site abundant in skin and subcutaneous tissue, amenable to primary closure; sizeable, robust, and consistent perforators and a long, sizeable pedicle for comfortable microvascular anastomosis. Its offers all the donor variables needed for HN reconstruction in abundance.
- Published
- 2024
- Full Text
- View/download PDF
14. Free Thoracodorsal Artery Perforator Flap for Head and Neck Reconstruction: An Indian Experience
- Author
-
Samreen Jaffar, Dushyant Jaiswal, Vinay Kant Shankhdhar, Ameya Bindu, Saumya Mathews, Mayur Mantri, Vineet Kumar, and Prabha Subhash Yadav
- Subjects
thoracodorsal artery perforator flap ,TDAP flap ,TAP flap ,head and neck reconstruction ,perforator free flap ,head and neck cancer ,Surgery ,RD1-811 - Abstract
Background We describe our experience with use of free thoracodorsal artery perforator (TDAP) flap for head and neck (H&N) cancer reconstruction, with respect to the patient and disease profile, suitable defect characteristics, the reconstructive technique, and complications.
- Published
- 2023
- Full Text
- View/download PDF
15. Cutting-Edge Hydrogel Technologies in Tissue Engineering and Biosensing: An Updated Review
- Author
-
Nargish Parvin, Vineet Kumar, Sang Woo Joo, and Tapas Kumar Mandal
- Subjects
hydrogel technologies ,tissue engineering applications ,biosensing innovations ,3D printing hydrogels ,wearable health devices ,Technology ,Electrical engineering. Electronics. Nuclear engineering ,TK1-9971 ,Engineering (General). Civil engineering (General) ,TA1-2040 ,Microscopy ,QH201-278.5 ,Descriptive and experimental mechanics ,QC120-168.85 - Abstract
Hydrogels, known for their unique ability to retain large amounts of water, have emerged as pivotal materials in both tissue engineering and biosensing applications. This review provides an updated and comprehensive examination of cutting-edge hydrogel technologies and their multifaceted roles in these fields. Initially, the chemical composition and intrinsic properties of both natural and synthetic hydrogels are discussed, highlighting their biocompatibility and biodegradability. The manuscript then probes into innovative scaffold designs and fabrication techniques such as 3D printing, electrospinning, and self-assembly methods, emphasizing their applications in regenerating bone, cartilage, skin, and neural tissues. In the realm of biosensing, hydrogels’ responsive nature is explored through their integration into optical, electrochemical, and piezoelectric sensors. These sensors are instrumental in medical diagnostics for glucose monitoring, pathogen detection, and biomarker identification, as well as in environmental and industrial applications like pollution and food quality monitoring. Furthermore, the review explores cross-disciplinary innovations, including the use of hydrogels in wearable devices, and hybrid systems, and their potential in personalized medicine. By addressing current challenges and future directions, this review aims to underscore the transformative impact of hydrogel technologies in advancing healthcare and industrial practices, thereby providing a vital resource for researchers and practitioners in the field.
- Published
- 2024
- Full Text
- View/download PDF
16. Essential Insights and Expert Guidance in ‘Own Your Body’: Buzzworthy for Common Man and Healthcare Providers
- Author
-
Vineet Kumar Pathak and Ajeet Singh Bhadoria
- Subjects
Medicine - Published
- 2024
- Full Text
- View/download PDF
17. Unraveling the shift in bacterial communities profile grown in sediments co-contaminated with chlorolignin waste of pulp-paper mill by metagenomics approach
- Author
-
Vineet Kumar, Fuad Ameen, and Pradeep Verma
- Subjects
high throughput sequencing ,metagenome ,MiSeq ,chloroorganics ,Proteobacteria ,Thiobacillus ,Microbiology ,QR1-502 - Abstract
Pulp-paper mills (PPMs) are known for consistently generating a wide variety of pollutants, that are often unidentified and highly resistant to environmental degradation. The current study aims to investigate the changes in the indigenous bacterial communities profile grown in the sediment co-contaminated with organic and inorganic pollutants discharged from the PPMs. The two sediment samples, designated PPS-1 and PPS-2, were collected from two different sites. Physico-chemical characterization of PPS-1 and PPS-2 revealed the presence of heavy metals (mg kg−1) like Cu (0.009–0.01), Ni (0.005–0.002), Mn (0.078–0.056), Cr (0.015–0.009), Pb (0.008–0.006), Zn (0.225–0.086), Fe (2.124–0.764), Al (3.477–22.277), and Ti (99.792–45.012) along with high content of chlorophenol, and lignin. The comparative analysis of organic pollutants in sediment samples using gas chromatography–mass spectrometry (GC–MS) revealed the presence of major highly refractory compounds, such as stigmasterol, β-sitosterol, hexadecanoic acid, octadecanoic acid; 2,4-di-tert-butylphenol; heptacosane; dimethyl phthalate; hexachlorobenzene; 1-decanol,2-hexyl; furane 2,5-dimethyl, etc in sediment samples which are reported as a potential toxic compounds. Simultaneously, high-throughput sequencing targeting the V3–V4 hypervariable region of the 16S rRNA genes, resulted in the identification of 1,249 and 1,345 operational taxonomic units (OTUs) derived from a total of 115,665 and 119,386 sequences read, in PPS-1 and PPS-2, respectively. Analysis of rarefaction curves indicated a diversity in OTU abundance between PPS-1 (1,249 OTUs) and PPS-2 (1,345 OTUs). Furthermore, taxonomic assignment of metagenomics sequence data showed that Proteobacteria (55.40%; 56.30%), Bacteoidetes (11.30%; 12.20%), and Planctomycetes (5.40%; 4.70%) were the most abundant phyla; Alphproteobacteria (20.50%; 23.50%), Betaproteobacteria (16.00%; 12.30%), and Gammaproteobacteria were the most recorded classes in PPS-1 and PPS-2, respectively. At the genus level, Thiobacillus (7.60%; 4.50%) was the most abundant genera grown in sediment samples. The results indicate significant differences in both the diversity and relative abundance of taxa in the bacterial communities associated with PPS-2 when compared to PPS-1. This study unveils key insights into contaminant characteristics and shifts in bacterial communities within contaminated environments. It highlights the potential for developing efficient bioremediation techniques to restore ecological balance in pulp-paper mill waste-polluted areas, stressing the importance of identifying a significant percentage of unclassified genera and species to explore novel genes.
- Published
- 2024
- Full Text
- View/download PDF
18. Organic Pollutant Exposure and CKD: A Chronic Renal Insufficiency Cohort Pilot Study
- Author
-
David M. Charytan, Wenbo Wu, Mengling Liu, Zhong-Min Li, Kurunthachalam Kannan, Leonardo Trasande, Vineet Kumar Pal, Sunmi Lee, Howard Trachtman, Lawrence J. Appel, MD, MPH, Jing Chen, MD, MMSc, MSc, Debbie L. Cohen, MD, Harold I. Feldman, MD, MSCE, Alan S. Go, MD, James P. Lash, MD, Robert G. Nelson, MD, PhD, MS, Mahboob Rahman, MD, Panduranga S. Rao, MD, Vallabh O. Shah, PhD, MS, and Mark L. Unruh, MD, MS.
- Subjects
Cardiovascular ,chronic kidney disease ,glomerular filtration rate ,organic pollutant ,proteinuria ,Diseases of the genitourinary system. Urology ,RC870-923 - Abstract
Rationale & Objective: This study aimed to assess the effect of exposure to organic pollutants in adults with chronic kidney disease (CKD). Study Design: This was a cross-sectional and longitudinal analysis. Setting and Participants: Forty adults enrolled in the Chronic Renal Insufficiency Cohort (CRIC). Exposures: Exposure at baseline and longitudinally to various organic chemical pollutants. Outcomes: The outcomes were as follows: death; composite of congestive heart failure, myocardial infarction, and stroke; event-free survival from kidney failure or ≥50% decline in estimated glomerular filtration rate (eGFR); and longitudinal trajectory of eGFR. Analytical Approach: We used high-performance liquid chromatography with tandem mass spectrometry to measure urinary concentrations of bisphenols, phthalates, organophosphate pesticides, polycyclic aromatic hydrocarbons, melamine, and cyanuric acid at years 1, 3, and 5 after enrollment in the CRIC. Univariate and multivariable logistic regression were used to examine the association of individual compounds and classes of pollutants with the outcomes. The Cox proportional hazards model and Kaplan-Meier method were used to calculate hazard ratios and 95% CIs for each class of pollutants. Results: Median baseline eGFR and urinary protein-to-creatinine ratio were 33 mL/min/1.73 m2 and 0.58 mg/g, respectively. Of 52 compounds assayed, 30 were detectable in ≥50% of participants. Urinary chemical concentrations were comparable in patients with CKD and healthy individuals from contemporaneous National Health and Nutrition Examination Survey cohorts. Phthalates were the only class with a trend toward higher exposure in patients with CKD. There was an inverse relationship between exposure and the eGFR slopes for bisphenol F, mono-(3-carboxypropyl) phthalate, mono-benzyl phthalate, mono-[2-(carboxymethyl)hexyl] phthalate, and melamine. There were no associations between organic pollutant exposure and cardiovascular outcomes. Limitations: Small sample size, evaluation of single rather than combined exposures. Conclusions: Simultaneous measurement of multiple organic pollutants in adults with CKD is feasible. Exposure levels are comparable with healthy individuals. Select contaminants, especially in the phthalate class, may be associated with more rapid deterioration in kidney function. Plain-Language Summary: The effect of exposure to organic pollutants has not been studied in adults with chronic kidney disease. (CKD). To fill this gap, we measured the exposure to a wide range of chemicals that are found in plastics, personal care products, and food preparation. Overall, the exposure was similar to that noted in the healthy population living in the United States. Only select compounds, mainly phthalates, demonstrated a trend with a more rapid decline in kidney function. These findings provide a useful reference for future studies that aim to evaluate organic pollutant exposure in patients with CKD. This is significant because these exposures represent a modifiable risk factor for disease progression through alterations in diet or lifestyle.
- Published
- 2024
- Full Text
- View/download PDF
19. Pyrolysis of waste oils for biofuel production: An economic and life cycle assessment
- Author
-
Akansha Mohanty, Siddhika Ajmera, Sampath Chinnam, Vineet Kumar, Ranjeet Kumar Mishra, and Bishnu Acharya
- Subjects
Waste oils ,Co-pyrolysis ,Biofuels ,Environmental sustainability ,Life cycle assessment ,Fuel ,TP315-360 - Abstract
Waste oil treatment and the burning of fossil fuels are causing environmental problems, thus using waste oils as pyrolysis feedstock to produce high-grade biofuels is receiving a lot of attention. Higher hydrogen and volatile matter contents of waste oils make them an optimal raw material for biofuel production. Conversely, attaining satisfactory effects employing traditional disposal methods such as gasification, solvent extraction, transesterification, membrane technology, and hydro-treating is strenuous. Clean and secure pyrolysis technology can help overcome the present dilemma. Biofuels obtained by the traditional waste oil pyrolysis methods can replace fossil fuel as it has been proven to have a high yield and higher heating value (HHV); however, they contain a high acid value. Nevertheless, treating with metal, zeolites, and other bi-functional catalysts helps decrease the acid value. Energy and time can be effectively saved with improved bio-oil yield and quality by co-pyrolysis with plastic waste. A comprehensive assessment of biofuel production via conventional and progressive pyrolysis of waste oils has been investigated. The current evaluation defines the technical and economical routine for bio-oil production from numerous biomass through pyrolysis. Analyzing the bio-oil production cost is one of the crucial components in determining the market affinity of different alternative biofuels. Bio-oil can be made through biomass pyrolysis using an energy integration approach smoothly. The Life cycle assessment (LCA) of waste oil with co-feeds was also discussed in-depth. The conclusions gained using the following study might influence the research on the bio-oil industry targeted at commercializing the product.
- Published
- 2024
- Full Text
- View/download PDF
20. The Effect of Rubber–Metal Interactions on the Mechanical, Magneto–Mechanical, and Electrical Properties of Iron, Aluminum, and Hybrid Filler-Based Styrene–Butadiene Rubber Composites
- Author
-
Md Najib Alam, Vineet Kumar, Seok-U Jeong, and Sang-Shin Park
- Subjects
styrene–butadiene rubber ,metallic fillers ,conducting rubber composites ,magneto–mechanical properties ,swelling properties ,Organic chemistry ,QD241-441 - Abstract
Multifunctional stretchable rubber composites are gaining attention due to their unique electrical, mechanical, and magnetic properties. However, their high production costs pose economic challenges. This study explores the use of cost-effective metal powders—iron, aluminum, and their 1:1 (vol/vol) hybrid filler—in styrene–butadiene rubber composites, varying from 10 to 20 vol%. The effects of these metal particles on the mechanical, electrical, morphological, and swelling properties were investigated. Metal particles generally act as non-reinforcing fillers but can significantly enhance the mechanical modulus, electrical, and magnetic properties based on the filler structure and the filler–rubber interactions. Iron-based composites exhibit significant electrical conductivity and excellent magnetic properties. Aluminum enhances the modulus, while the combination yields average mechanical properties with added magnetic characteristics. Iron demonstrates higher reactivity with sulfur-based crosslinking ingredients, adversely affecting the rubber matrix’s crosslinks, as shown by swelling tests. This reactivity is attributed to iron’s transition metal characteristics. At 20 vol%, iron-filled composites display the highest magnetic anisotropic effect on toughness (~25%) under a magnetic field by permanent magnets and excellent electrical conductivity (1.5 × 10−2 S/m). While iron significantly boosts the electrical and magnetic properties, higher filler amounts degrade the mechanical properties. These composites are currently suitable for electrical and smart mechanical applications, but incorporating reinforcing fillers could enhance their robustness for broader applications.
- Published
- 2024
- Full Text
- View/download PDF
21. Advancements in Nanoporous Materials for Biomedical Imaging and Diagnostics
- Author
-
Nargish Parvin, Vineet Kumar, Tapas Kumar Mandal, and Sang Woo Joo
- Subjects
nanoporous materials ,biomedical imaging ,diagnostics ,functionalization techniques ,multimodal imaging ,Biotechnology ,TP248.13-248.65 ,Medicine (General) ,R5-920 - Abstract
This review explores the latest advancements in nanoporous materials and their applications in biomedical imaging and diagnostics. Nanoporous materials possess unique structural features, including high surface area, tunable pore size, and versatile surface chemistry, making them highly promising platforms for a range of biomedical applications. This review begins by providing an overview of the various types of nanoporous materials, including mesoporous silica nanoparticles, metal–organic frameworks, carbon-based materials, and nanoporous gold. The synthesis method for each material, their current research trends, and prospects are discussed in detail. Furthermore, this review delves into the functionalization and surface modification techniques employed to tailor nanoporous materials for specific biomedical imaging applications. This section covers chemical functionalization, bioconjugation strategies, and surface coating and encapsulation methods. Additionally, this review examines the diverse biomedical imaging techniques enabled by nanoporous materials, such as fluorescence imaging, magnetic resonance imaging (MRI), computed tomography (CT) imaging, ultrasound imaging, and multimodal imaging. The mechanisms underlying these imaging techniques, their diagnostic applications, and their efficacy in clinical settings are thoroughly explored. Through an extensive analysis of recent research findings and emerging trends, this review underscores the transformative potential of nanoporous materials in advancing biomedical imaging and diagnostics. The integration of interdisciplinary approaches, innovative synthesis techniques, and functionalization strategies offers promising avenues for the development of next-generation imaging agents and diagnostic tools with enhanced sensitivity, specificity, and biocompatibility.
- Published
- 2024
- Full Text
- View/download PDF
22. Kitaev physics in the two-dimensional magnet NiPSe_{3}
- Author
-
Cheng Peng, Sougata Mardanya, Alexander N. Petsch, Vineet Kumar Sharma, Shuyi Li, Chunjing Jia, Arun Bansil, Sugata Chowdhury, and Joshua J. Turner
- Subjects
Physics ,QC1-999 - Abstract
The Kitaev interaction, found in candidate materials such as α-RuCl_{3}, occurs through the metal (M)-ligand (X)-metal (M) paths of the edge-sharing octahedra because the large spin-orbit coupling (SOC) on the metal atoms activates directional spin interactions. Here, we show that even in 3d transition-metal compounds, where the SOC of the metal atom is negligible, heavy ligands can induce bond-dependent Kitaev interactions. In this work, we take as an example the 3d transition-metal chalcogenophosphate NiPSe_{3} and show that the key is found in the presence of a sizable SOC on the Se p orbital, one which mediates the super-exchange between the nearest-neighbor Ni sites. Our study provides a pathway for engineering enhanced Kitaev interactions through the interplay of SOC strength, lattice distortions, and chemical substitutions.
- Published
- 2024
- Full Text
- View/download PDF
23. Ni3V2O8 Marigold Structures with rGO Coating for Enhanced Supercapacitor Performance
- Author
-
Manesh A. Yewale, Pritam J. Morankar, Vineet Kumar, Aviraj M. Teli., Sonali A. Beknalkar, Suprimkumar D. Dhas, and Dong-Kil Shin
- Subjects
Ni3V2O8 ,Ni3V2O8-rGO nanoparticles ,hydrothermal synthesis ,FESEM ,TEM ,XPS ,Mechanical engineering and machinery ,TJ1-1570 - Abstract
In this work, Ni3V2O8 (NVO) and Ni3V2O8-reduced graphene oxide (NVO-rGO) are synthesized hydrothermally, and their extensive structural, morphological, and electrochemical characterizations follow subsequently. The synthetic materials’ crystalline structure was confirmed by X-ray diffraction (XRD), and its unique marigold-like morphology was observed by field emission scanning electron microscopy (FESEM). The chemical states of the elements were investigated via X-ray photoelectron spectroscopy (XPS). Electrochemical impedance spectroscopy (EIS), Galvanostatic charge–discharge (GCD), and cyclic voltammetry (CV) were used to assess the electrochemical performance. A specific capacitance of 132 F/g, an energy density of 5.04 Wh/kg, and a power density of 187 W/kg were demonstrated by Ni3V2O8-rGO. Key electrochemical characteristics were b = 0.67; a transfer coefficient of 0.52; a standard rate constant of 6.07 × 10−5 cm/S; a diffusion coefficient of 5.27 × 10−8 cm2/S; and a series resistance of 1.65 Ω. By employing Ni3V2O8-rGO and activated carbon, an asymmetric supercapacitor with a specific capacitance of 7.85 F/g, an energy density of 3.52 Wh/kg, and a power density of 225 W/kg was achieved. The series resistance increased from 4.27 Ω to 6.63 Ω during cyclic stability tests, which showed 99% columbic efficiency and 87% energy retention. The potential of Ni3V2O8-rGO as a high-performance electrode material for supercapacitors is highlighted by these findings.
- Published
- 2024
- Full Text
- View/download PDF
24. Multifunctional Aspects of Mechanical and Electromechanical Properties of Composites Based on Silicone Rubber for Piezoelectric Energy Harvesting Systems
- Author
-
Vineet Kumar, Md. Najib Alam, Manesh A. Yewale, and Sang-Shin Park
- Subjects
titanium carbide ,molybdenum disulfide ,silicone rubber ,reinforcing efficiency ,electromechanical properties ,Organic chemistry ,QD241-441 - Abstract
Energy harvesting systems fabricated from rubber composite materials are promising due to their ability to produce green energy with no environmental pollution. Thus, the present work investigated energy harvesting through piezoelectricity using rubber composites. These composites were fabricated by mixing titanium carbide (TiC) and molybdenum disulfide (MoS2) as reinforcing and electrically conductive fillers into a silicone rubber matrix. Excellent mechanical and electromechanical properties were produced by these composites. For example, the compressive modulus was 1.55 ± 0.08 MPa (control) and increased to 1.95 ± 0.07 MPa (6 phr or per hundred parts of rubber of TiC) and 2.02 ± 0.09 MPa (6 phr of MoS2). Similarly, the stretchability was 133 ± 7% (control) and increased to 153 ± 9% (6 phr of TiC) and 165 ± 12% (6 phr of MoS2). The reinforcing efficiency (R.E.) and reinforcing factor (R.F.) were also determined theoretically. These results agree well with those of the mechanical property tests and thus validate the experimental work. Finally, the electromechanical tests showed that at 30% strain, the output voltage was 3.5 mV (6 phr of TiC) and 6.7 mV (6 phr of MoS2). Overall, the results show that TiC and MoS2 added to silicone rubber lead to robust and versatile composite materials. These composite materials can be useful in achieving higher energy generation, high stretchability, and optimum stiffness and are in line with existing theoretical models.
- Published
- 2024
- Full Text
- View/download PDF
25. Emerging Trends in Nanomedicine: Carbon-Based Nanomaterials for Healthcare
- Author
-
Nargish Parvin, Vineet Kumar, Sang Woo Joo, and Tapas Kumar Mandal
- Subjects
carbon-based nanomaterials ,carbon quantum dots (CQDs) ,carbon 2D nanosheets ,biomedical applications ,theranostics ,Chemistry ,QD1-999 - Abstract
Carbon-based nanomaterials, such as carbon quantum dots (CQDs) and carbon 2D nanosheets (graphene, graphene oxide, and graphdiyne), have shown remarkable potential in various biological applications. CQDs offer tunable photoluminescence and excellent biocompatibility, making them suitable for bioimaging, drug delivery, biosensing, and photodynamic therapy. Additionally, CQDs’ unique properties enable bioimaging-guided therapy and targeted imaging of biomolecules. On the other hand, carbon 2D nanosheets exhibit exceptional physicochemical attributes, with graphene excelling in biosensing and bioimaging, also in drug delivery and antimicrobial applications, and graphdiyne in tissue engineering. Their properties, such as tunable porosity and high surface area, contribute to controlled drug release and enhanced tissue regeneration. However, challenges, including long-term biocompatibility and large-scale synthesis, necessitate further research. Potential future directions encompass theranostics, immunomodulation, neural interfaces, bioelectronic medicine, and expanding bioimaging capabilities. In summary, both CQDs and carbon 2D nanosheets hold promise to revolutionize biomedical sciences, offering innovative solutions and improved therapies in diverse biological contexts. Addressing current challenges will unlock their full potential and can shape the future of medicine and biotechnology.
- Published
- 2024
- Full Text
- View/download PDF
26. Review of Recent Progress on Silicone Rubber Composites for Multifunctional Sensor Systems
- Author
-
Vineet Kumar, Md. Najib Alam, and Sang Shin Park
- Subjects
silicone rubber ,multifunctional sensors ,real-time monitoring ,gauge factors ,response time of sensors ,Organic chemistry ,QD241-441 - Abstract
The latest progress (the year 2021–2024) on multifunctional sensors based on silicone rubber is reported. These multifunctional sensors are useful for real-time monitoring through relative resistance, relative current change, and relative capacitance types. The present review contains a brief overview and literature survey on the sensors and their multifunctionalities. This contains an introduction to the different functionalities of these sensors. Following the introduction, the survey on the types of filler or rubber and their fabrication are briefly described. The coming section deals with the fabrication methodology of these composites where the sensors are integrated. The special focus on mechanical and electro-mechanical properties is discussed. Electro-mechanical properties with a special focus on response time, linearity, and gauge factor are reported. The next section of this review reports the filler dispersion and its role in influencing the properties and applications of these sensors. Finally, various types of sensors are briefly reported. These sensors are useful for monitoring human body motions, breathing activity, environment or breathing humidity, organic gas sensing, and, finally, smart textiles. Ultimately, the study summarizes the key takeaway from this review article. These conclusions are focused on the merits and demerits of the sensors and are followed by their future prospects.
- Published
- 2024
- Full Text
- View/download PDF
27. Undiagnosed hypertension and associated factors among adults in the urban field practice area of AIIMS Raipur: A community-based screening survey
- Author
-
Ekta Krishna, Anjali Pal, Abhiruchi Galhotra, Arvind Kumar Shukla, Pragyan Paramita Parija, Vineet Kumar Pathak, UR Rajath Rao, and Bijaya Nanda Naik
- Subjects
cross-sectional study ,risk factors ,screening ,steps ,undiagnosed hypertension ,Medicine - Abstract
Introduction: Undiagnosed hypertension (HTN) increases the risk of severe consequences such as chronic kidney disease (CKD), hypertensive retinopathy, heart failure, and stroke. Population-based screening can be used to expose the hidden diseased mass with active disease. Thus, a screening survey was conducted to estimate the proportion of people with HTN among apparently healthy adults of age ≥30 years residing at the urban field practice area (UHTC) of AIIMS, Raipur, and also determine the predictors of undiagnosed HTN among the study participants. Methodology: This was a community-based cross-sectional study conducted over 2 months duration in the Ramnagar area, which comes under the urban field practice area of AIIMS Raipur using the STEPS tool is an acronym of study tool provided by WHO i.e. STEPwise approach to NCD risk factor surveillance consisting of three steps viz. questionnaire for behavioural risk factors, physical measurements and biochemical measurements. Results: In this study, 24.2% (95%, confidence interval [CI]: 20.1–28.2) of participants screened positive for HTN. The proportion of males who screened positive for HTN was 28.8% (95% CI: 22.6–35), whereas the proportion of females who screened positive for HTN was 19.6% (95% CI: 14.3–25). In this study, elderly (>60 years), male gender, daily tobacco use, greater waist circumference (male >90 cm and female >80 cm), and daily salt intake of more than 5 g were found to have higher odds of having HTN. Conclusion: The prevalence of undiagnosed HTN in the UHTC of AIIMS Raipur was quite high.
- Published
- 2023
- Full Text
- View/download PDF
28. Regional and temporal variability of Indian summer monsoon rainfall in relation to El Niño southern oscillation
- Author
-
K. S. Athira, M. K. Roxy, Panini Dasgupta, J. S. Saranya, Vineet Kumar Singh, and Raju Attada
- Subjects
Medicine ,Science - Abstract
Abstract The Indian summer monsoon rainfall (ISMR) exhibits significant variability, affecting the food and water security of the densely populated Indian subcontinent. The two dominant spatial modes of ISMR variability are associated with the El Niño Southern Oscillation (ENSO) and the strength of the semi-permanent monsoon trough along with related variability in monsoon depressions, respectively. Although the robust teleconnection between ENSO and ISMR has been well established for several decades, the major drivers leading to the time-varying relationship between ENSO and ISMR patterns across different regions of the country are not well understood. Our analysis shows a consistent increase from a moderate to substantially strong teleconnection strength between ENSO and ISMR from 1901 to 1940. This strengthened relationship remained stable and strong between 1941 and 1980. However, in the recent period from 1981 to 2018 the teleconnection decreased consistently again to a moderate strength. We find that the ENSO–ISMR relationship exhibits distinct regional variability with time-varying relationship over the north, central, and south India. Specifically, the teleconnection displays an increasing relationship for north India, a decreasing relationship for central India and a consistent relationship for south India. Warm SST anomalies over the eastern Pacific Ocean correspond to an overall decrease in the ISMR, while warm SST anomalies over the Indian Ocean corresponds to a decrease in rainfall over the north and increase over the south of India. The central Indian region experienced the most substantial variation in the ENSO–ISMR relationship. This variation corresponds to the variability of the monsoon trough and depressions, strongly influenced by the Pacific Decadal Oscillation and North Atlantic Oscillation, which regulate the relative dominance of the two spatial modes of ISMR. By applying the PCA-Biplot technique, our study highlights the significant impacts of various climate drivers on the two dominant spatial modes of ISMR which account for the evolving nature of the ENSO–ISMR relationship.
- Published
- 2023
- Full Text
- View/download PDF
29. Implementing a quality improvement initiative for private healthcare facilities to achieve accreditation: experience from India
- Author
-
Tapas Sadasivan Nair, Parvez Memon, Sanjay Tripathi, Ashish Srivastava, Meshach Sunny Kujur, Deepti Singh, Parag Bhamare, Vikas Yadav, Vineet Kumar Srivastava, Suranjeen Prasad Pallipamula, Gulnoza Usmanova, and Somesh Kumar
- Subjects
Accreditation ,Private sector ,Quality of care ,Maternal health ,Public aspects of medicine ,RA1-1270 - Abstract
Abstract Background The Manyata program is a quality improvement initiative for private healthcare facilities in India which provided maternity care services. Under this initiative, technical assistance was provided to selected facilities in the states of Uttar Pradesh, Jharkhand and Maharashtra which were interested in obtaining ‘entry level certification’ under the National Accreditation Board for Hospitals and Healthcare Providers (NABH) for provision of quality services. This paper describes the change in quality at those Manyata-supported facilities when assessed by the NABH standards of care. Methods Twenty-eight private-sector facilities underwent NABH assessments in the three states from August 2017 to February 2019. Baseline assessment (by program staff) and NABH assessment (by NABH assessors) findings were compared to assess the change in quality of care as per NABH standards of care. The reported performance gaps from NABH assessments were then also classified by thematic areas and suggested corrective actions based on program implementation experience. Results The overall adherence to NABH standards of care improved from 9% in the baseline assessment to 80% in the NABH assessment. A total of 831 performance gaps were identified by the NABH assessments, of which documentation issues accounted for a majority (70%), followed by training (19%). Most performance gaps could be corrected either by revising existing documentation or creating new documentation (62%), or by orienting facility staff on various protocols (35%). Conclusion While the adherence of facilities to the NABH standards of care improved considerably, certain performance gaps remained, which were primarily related to documentation of facility policies and protocols and training of staff, and required corrective actions for the facilities to achieve NABH entry level certification.
- Published
- 2023
- Full Text
- View/download PDF
30. Anticoagulants for atrial fibrillation: from warfarin and DOACs to the promise of factor XI inhibitors
- Author
-
Vineet Kumar and Leonard Ilkhanoff
- Subjects
anticoagulant ,atrial fibrillation ,direct oral anticoagulants ,factor XI inhibitors ,arrhythmia ,Diseases of the circulatory (Cardiovascular) system ,RC666-701 - Abstract
Anticoagulation is the mainstay of stroke prevention in appropriate patients with atrial fibrillation. Due to advances in pharmacotherapy the anticoagulants used for this purpose have evolved significantly over the past decades with the aim of optimizing effectiveness while minimizing bleeding risks. Though significant improvements have been made toward this goal, bleeding risk remains the major concern with these therapies. An investigational class of agents which inhibit Factor XI have shown promise in pre-clinical and early clinical trials to significantly minimize bleeding while maintaining efficacy against stroke and systemic embolism. This mini-review will discuss anticoagulants currently used for stroke prevention in patients with atrial fibrillation including warfarin and direct oral anticoagulants. We will also review the mechanism of action and data from early clinical trials for Factor XI inhibitors and discuss their potential advantages and shortcomings.
- Published
- 2024
- Full Text
- View/download PDF
31. Dissociation of J/ψ and Y Using Dissociation Energy Criteria in N-Dimensional Space
- Author
-
Siddhartha Solanki, Manohar Lal, and Vineet Kumar Agotiya
- Subjects
Physics ,QC1-999 - Abstract
The analytical exact iteration method (AEIM) has been widely used to calculate N-dimensional radial Schrodinger equation with medium-modified form of Cornell potential and is generalized to the finite value of magnetic field (eB) with quasiparticle approach in hot quantum chromodynamics (QCD) medium. In N-dimensional space, the energy eigenvalues have been calculated for any states (n, l). These results have been used to study the properties of quarkonium states (i.e, the binding energy and mass spectra, dissociation temperature, and thermodynamical properties in the N-dimensional space). We have determined the binding energy of the ground states of quarkonium with magnetic field and dimensionality number. We have also determined the effects of magnetic field and dimensionality number on mass spectra for ground states of quarkonia. But the main result is quite noticeable for the values of dissociation temperature in terms of magnetic field and dimensionality number for ground states of quarkonia after using the criteria of dissociation energy. At last, we have also calculated the thermodynamical properties of QGP (i.e., pressure, energy density, and speed of sound) using the parameter eB with ideal equation of states (EoS). A preprint has previously been published (Solanki et al., 2023).
- Published
- 2024
- Full Text
- View/download PDF
32. Graphene-metal sulfide composite based gas sensors for environmental sustainability: A review
- Author
-
Deepak Balram, Kuang-Yow Lian, Neethu Sebastian, Vineet Kumar, Virendra Kumar Yadav, Ashish Patel, and Kulvinder Singh
- Subjects
Graphene ,Metal sulfides ,Air pollution ,Gas sensor ,Environmental sustainability ,Electrical engineering. Electronics. Nuclear engineering ,TK1-9971 - Abstract
In this modern era, maintaining a sustainable environment is pivotal and hence, a detailed review on gas sensors for quantification of toxic environmental pollutants is critical. In this paper, an extensive review on advancements in gas sensors developed using graphene-metal sulfide composites is discussed. Although graphene is an intriguing material with high sensitivity for determination of gases at low concentrations, its poor selectivity is a hindrance towards fabrication of high-performance gas sensors. Hence, hybrid nanocomposites prepared by embedding graphene and its derivatives with various metal sulfides including molybdenum sulfide (MoS2), tin sulfide (SnS2), tungsten sulfide (WS2), cadmium sulfide (CdS) etc. were utilized in gas sensor fabrication with enhanced sensing capabilities. Related investigations revealed that gas sensors using graphene-metal sulfide nanohybrids could be effectively used in detection of individual molecules of toxic gas including NOx, NH3, H2S, SO2, HCHO, CO2, CO, CH4, C3H6O and so on at very low concentrations with good sensitivity and selectivity. A comparative evaluation of various performance parameters revealed that toxic gases were determined with a limit of detection and concentration as low as 0.6 ppb and 0.05 ppm respectively, using graphene-metal sulfide based gas sensors. This review reflects the fact that advancements in material synthesis has led to improvement in gas sensing performances as evidenced from the comparatively better performance metrics reported in recently published articles which utilized hybrid nanocomposites as sensing material.
- Published
- 2024
- Full Text
- View/download PDF
33. Unraveling the mechanistic insights of sophorolipid-capped gold nanoparticle-induced cell death in Vibrio cholerae
- Author
-
Sristy Shikha, Vineet Kumar, Ankita Jain, Dipak Dutta, and Mani Shankar Bhattacharyya
- Subjects
sophorolipid-capped gold nanoparticles ,Vibrio cholerae ,ROS ,oxidative stress ,apoptosis ,membrane damage ,Microbiology ,QR1-502 - Abstract
ABSTRACT Cholera is one of the leading causes of mortality and morbidity worldwide. The treatment of cholera includes rehydration therapy, often combined with the administration of antibiotics (in severe cases). With the emergence and rapid spread of antimicrobial resistance, such microbial pathogens have become a compelling medical problem and a global threat. To combat the resistance to antibiotics, there is an urgent need for the discovery of novel and potent antimicrobial agents. The discovery of antimicrobial nanoparticles as an alternative to the existing antimicrobial regime has increased the hope for its use as one of the most promising tools against an array of microbial pathogens, including multidrug-resistant bacteria. Our recent report demonstrated that sophorolipid-capped gold nanoparticles (AuNPs-SL) exhibit potent antibacterial activity against Vibrio cholerae; however, the killing mechanism remained obscure. Metal nanoparticle-mediated killing of microbes occurs through non-specific mechanisms. To develop antimicrobial nanoparticles with better efficacy, knowledge of their specific mechanism of action is essential. In this work, we deduced the mechanistic insights of AuNPs-SL mediated cell death of V. cholerae. We observed that AuNPs-SL treatment evokes reactive oxygen species (ROS) formation. The surge in the ROS level triggers the overexpression of ROS-responsive genes, depolarization of the membrane, change in membrane permeability and leakage of intracellular proteins and DNA, depletion of ATP levels in the cell, DNA damage, and subsequent cell death. This study shows the possibility of use of AuNPs-SL as an alternative potential antimicrobial agent. IMPORTANCE Vibrio cholerae, a Gram-negative bacterium, is the causative agent of a fatal disease, “cholera.” Prevention of cholera outbreak is possible by eliminating the bacteria from the environment. However, antimicrobial resistance developed in microorganisms has posed a threat and challenges to its treatment. Application of nanoparticles is a useful and effective option for the elimination of such microorganisms. Metal-based nanopaticles exhibit microbial toxicity through non-specific mechanisms. To prevent resistance development and increase antibacterial efficiency, rational designing of nanoparticles is required. Thus, knowledge on the exact mechanism of action of nanoparticles is highly essential. In this study, we explore the possible mechanisms of antibacterial activity of AuNPs-SL against V. cholerae. We show that the interaction of AuNPs-SL with V. cholerae enhances ROS production and membrane depolarization, change in permeability, and leakage of intracellular content. This action leads to the depletion of cellular ATP level, DNA damage, and subsequent cell death.
- Published
- 2023
- Full Text
- View/download PDF
34. Assessing the coverage of full antenatal care among adolescent mothers from scheduled tribe and scheduled caste communities in India
- Author
-
Aditya Singh, Vineet Kumar, Harpreet Singh, Sourav Chowdhury, and Sanjana Sharma
- Subjects
Antenatal care ,Iron and folic acid ,Scheduled Caste (SC) ,Scheduled Tribe (ST) ,Maternal health ,National Family Health Survey-4 ,Public aspects of medicine ,RA1-1270 - Abstract
Abstract Background The persistently high rates of maternal mortality and morbidity among historically marginalised social groups, such as adolescent Scheduled Castes (SCs) and Scheduled Tribes (STs) in India, can be attributed, in part, to the low utilisation of full antenatal healthcare services. Despite efforts by the Indian government, full antenatal care (ANC) usage remains low among this population. To address this issue, it is crucial to determine the factors that influence the utilisation of ANC services among adolescent SC/ST mothers. However, to date, no national-level comprehensive study in India has specifically examined this issue for this population. Our study aims to address this research gap and contribute to the understanding of how to improve the utilisation of ANC services among adolescent SC/ST mothers in India. Data and methods Data from the fourth round of the National Family Health Survey 2015–16 (NFHS-4) was used. The outcome variable was full antenatal care (ANC). A pregnant mother was considered to have ‘full ANC’ only when she had at least four ANC visits, at least two tetanus toxoid (TT) injections, and consumed 100 or more iron-folic acid (IFA) tablets/syrup during her pregnancy. Bivariate analysis was used to examine the disparity in the coverage of full ANC. In addition, binary logistic regression was used to understand the net effect of predictor variables on the coverage of full ANC. Results The utilisation of full antenatal care (ANC) among adolescent SC/ST mothers was inadequate, with only 18% receiving full ANC. Although 83% of Indian adolescent SC/ST mothers received two or more TT injections, the utilisation of the other two vital components of full ANC was low, with only 46% making four or more ANC visits and 28% consuming the recommended number of IFA tablets or equivalent amount of IFA syrup. There were statistically significant differences in the utilisation of full ANC based on the background characteristics of the participants. The statistical analysis showed that there was a significant association between the receipt of full ANC and factors such as religion (OR = 0.143, CI = 0.044–0.459), household wealth (OR = 5.505, CI = 1.804–16.800), interaction with frontline health workers (OR = 1.821, CI = 1.241–2.670), and region of residence in the Southern region (OR = 3.575, CI = 1.917–6.664). Conclusion In conclusion, the study highlights the low utilisation of full antenatal care services among Indian adolescent SC/ST mothers, with only a minority receiving the recommended number of ANC visits and consuming the required amount of IFA tablets/syrup. Addressing social determinants of health and recognising the role of frontline workers can be crucial in improving full ANC coverage among this vulnerable population. Furthermore, targeted interventions tailored to the unique needs of different subgroups of adolescent SC/ST mothers are necessary to achieve optimal maternal and child health outcomes.
- Published
- 2023
- Full Text
- View/download PDF
35. Comparative Analysis of Indoor Air Quality and Thermal Comfort Standards in School Buildings across New Zealand with Other OECD Countries
- Author
-
Vineet Kumar Arya, Eziaku Onyeizu Rasheed, Don Amila Sajeevan Samarasinghe, and Suzanne Wilkinson
- Subjects
school ,indoor air quality ,thermal comfort ,OECD countries ,performance ,health ,Building construction ,TH1-9745 - Abstract
COVID-19 has improved awareness of the importance of appropriate indoor air quality (IAQ) in indoor spaces, particularly in classrooms where children are expected to learn. Research has shown that poor IAQ and temperature levels affect the cognitive performance of children. In this paper, we critically compare IAQ standards for New Zealand’s Designing Quality Learning Spaces (DQLS Document) against international benchmarks from the Organization for Economic Co-operation and Development (OECD) countries, including ASHRAE 62.1, CIBSE TM57, EN-15251, WHO AQGs, and Building Bulletins 99 and 101. The aim was to ascertain the robustness of New Zealand’s DQLS document, identify areas of superiority, and recommend the required improvement for appropriate IAQ and thermal comfort in classrooms. This comparison review focuses on IAQ parameters: CO2 levels, temperature, ventilation rates, room size, occupant density, and occupancy rates. The findings illuminate a slight lag in New Zealand’s DQLS standards compared to her international counterparts. For instance, while New Zealand’s standards align closely with WHO standards for IAQ concerning temperature and ventilation rates, the recommended CO2 range appears slightly inadequate (800 to 2000 ppm) along with occupancy and classroom size for effectively controlling classroom pollutant growth. This paper emphasises the need to align New Zealand’s IAQ and thermal comfort standards with optimal OECD benchmarks. The identified disparities present opportunities for improving learning spaces in terms of CO2 concentration, size of classroom, and occupant density in schools in New Zealand to meet globally recognised standards, ultimately creating a healthier and more conducive learning environment.
- Published
- 2024
- Full Text
- View/download PDF
36. Smart Textile Flexible MnCo2O4 Electrodes: Urea Surface Modification for Improved Electrochemical Functionality
- Author
-
Manesh A. Yewale, Aviraj M. Teli, Sonali A. Beknalkar, Vineet Kumar, and Dong-Kil Shin
- Subjects
MnCo2O4 nanoparticles ,supercapacitor ,TEM ,hydrothermal ,asymmetric supercapacitor ,Technology ,Electrical engineering. Electronics. Nuclear engineering ,TK1-9971 ,Engineering (General). Civil engineering (General) ,TA1-2040 ,Microscopy ,QH201-278.5 ,Descriptive and experimental mechanics ,QC120-168.85 - Abstract
Surface microstructure modification of metal oxides also improves the electrochemical performance of metal oxide nanoparticles. The present investigation demonstrates how varying the urea molar content during the hydrothermal process altered the surfaces of MnCo2O4 nanoparticles. Successive increases of 0.1 M in urea concentration transformed the surface shape of MnCo2O4 nanoparticles from flower-like to sheet-like microstructures. Excellent electrochemical performance of MnCo2O4 nanoparticles was demonstrated in an aqueous 1 M KOH electrolyte. The improved MnCo2O4 nanoparticles have been employed to develop an asymmetric supercapacitor (ASC). The ASC device exhibits an energy density of 13 Wh/kg at a power density of 553 W/kg and a specific capacitance of 29 F g−1 at a current density of 4 mA/cm2. The MnCo2O4 nanoparticle electrode demonstrates remarkable electrocatalytic activity in both HER and OER. The MnCo2O4 electrode shows overpotential for HER and OER at 356 mV and 1.46 V, respectively. The Tafel slopes for HER and OER of the MnCo2O4 electrode are 356 mV/dec and 187 mV/dec, respectively.
- Published
- 2024
- Full Text
- View/download PDF
37. Enhancing Rubber Vulcanization Cure Kinetics: Lowering Vulcanization Temperature by Addition of MgO as Co-Cure Activator in ZnO-Based Cure Activator Systems
- Author
-
Md Najib Alam, Vineet Kumar, Seok U Jeong, and Sang-Shin Park
- Subjects
rubber ,cure activator ,magnesium oxide ,zinc oxide ,vulcanization kinetics ,Organic chemistry ,QD241-441 - Abstract
Vulcanization is a chemical modification of rubber that requires a considerable amount of thermal energy. To save thermal energy, the kinetics of rubber vulcanization should be improved. In this article, the curing properties of rubber vulcanization are thoroughly investigated using the moving die rheometer (MDR) technique. To enhance the kinetics in different stages of ZnO-based sulfur vulcanization systems, small amounts of MgO were added. The results revealed that the small amount of 1 to 2 phr (per hundred grams of rubber) of MgO in the controlled 5 phr ZnO-based curing systems can significantly improve the curing kinetics. For example, the optimum curing time of 1 phr MgO added to the 5 phr ZnO-containing semi-efficient vulcanization system at different temperatures was more than half that of the controlled 5 phr ZnO-only compound. While maintaining a similar rate of vulcanization, the vulcanization temperature can be reduced by up to 20 °C by using MgO as a co-cure activator, which exhibits similar or better rheometric mechanical properties compared to the controlled compounds. With the addition of MgO as a co-cure activator, the vulcanization reactions become very fast, enabling vulcanization to be completed, even at the boiling point of water (100 °C) with an affordable curing time (
- Published
- 2024
- Full Text
- View/download PDF
38. Elevating Supercapacitor Performance of Co3O4-g-C3N4 Nanocomposites Fabricated via the Hydrothermal Method
- Author
-
Manesh A. Yewale, Vineet Kumar, Aviraj M. Teli, Sonali A. Beknalkar, Umesh T. Nakate, and Dong-Kil Shin
- Subjects
graphic carbon nitride (g-C3N4) ,Co3O4 nanoparticles ,supercapacitor ,Mechanical engineering and machinery ,TJ1-1570 - Abstract
The hydrothermal method has been utilized to synthesize graphitic carbon nitride (g-C3N4) polymers and cobalt oxide composites effectively. The weight percentage of g-C3N4 nanoparticles influenced the electrochemical performance of the Co3O4-g-C3N4 composite. In an aqueous electrolyte, the Co3O4-g-C3N4 composite electrode, produced with 150 mg of g-C3N4 nanoparticles, revealed remarkable electrochemical performance. With an increase in the weight percentage of g-C3N4 nanoparticles, the capacitive contribution of the Co3O4-g-C3N4 composite electrode increased. The Co3O4-g-C3N4-150 mg composite electrode shows a specific capacitance of 198 F/g. The optimized electrode, activated carbon, and polyvinyl alcohol gel with potassium hydroxide were used to develop an asymmetric supercapacitor. At a current density of 5 mA/cm2, the asymmetric supercapacitor demonstrated exceptional energy storage capacity with remarkable energy density and power density. The device retained great capacity over 6k galvanostatic charge–discharge (GCD) cycles, with no rise in series resistance following cyclic stability. The columbic efficiency of the asymmetric supercapacitor was likewise high.
- Published
- 2024
- Full Text
- View/download PDF
39. A critical role for staphylococcal nitric oxide synthase in controlling flavohemoglobin toxicity
- Author
-
Ryan M. Singh, Sujata S. Chaudhari, Sasmita Panda, Elizabeth H. Hutfless, Cortney E. Heim, Dhananjay Shinde, Abdulelah A. Alqarzaee, Margaret Sladek, Vineet Kumar, Matthew C. Zimmerman, Paul D. Fey, Tammy Kielian, and Vinai C. Thomas
- Subjects
Staphylococcus epidermidis ,Bacterial nitric oxide synthase ,Flavohemoglobin ,Superoxide ,Respiration ,Medicine (General) ,R5-920 ,Biology (General) ,QH301-705.5 - Abstract
Most coagulase-negative staphylococcal species, including the opportunistic pathogen Staphylococcus epidermidis, struggle to maintain redox homeostasis and grow under nitrosative stress. Under these conditions, growth can only resume once nitric oxide (NO) is detoxified by the flavohemoglobin Hmp. Paradoxically, S. epidermidis produces endogenous NO through its genetically encoded nitric oxide synthase (seNOS) and heavily relies on its activity for growth. In this study, we investigate the basis of the growth advantage attributed to seNOS activity. Our findings reveal that seNOS supports growth by countering Hmp toxicity. S. epidermidis relies on Hmp activity for its survival in the host under NO stress. However, in the absence of nitrosative stress, Hmp generates significant amounts of the harmful superoxide radical (O2•-) from its heme prosthetic group which impedes growth. To limit Hmp toxicity, nitrite (NO2−) derived from seNOS promotes CymR-CysK regulatory complex activity, which typically regulates cysteine metabolism, but we now demonstrate to also repress hmp transcription. These findings reveal a critical mechanism through which the bacterial NOS-Hmp axis drives staphylococcal fitness.
- Published
- 2023
- Full Text
- View/download PDF
40. Towards effective conservation planning: integrating landscape modelling to safeguard the future of the endangered Kashmir musk deer in the face of land use change
- Author
-
Amira Sharief, Vineet Kumar, Bheem Dutt Joshi, Hemant Singh, Saurav Bhattacharjee, Ritam Dutta, Shahid Ahmad Dar, Chinnasamy Ramesh, Catherine H. Graham, Mukesh Thakur, and Lalit Kumar Sharma
- Subjects
land use simulation ,habitat suitability ,fragmentation ,Kashmir musk deer ,Western Himalayas ,Evolution ,QH359-425 ,Ecology ,QH540-549.5 - Abstract
Human expansion and anthropogenic activities are causing the conversion of forests to other land uses in the Himalayas, which is threatening species with extinction. To address this issue, we used an ensemble model to simulate the future landscape and assess its impact on the Kashmir Musk Deer (KMD) distribution in the context of land use change. Our simulation suggests a decline in croplands and shrublands and increase of mixed forests in the future scenario. Evergreen broad-leaf and needle-leaf forests are likely to convert to mixed forests, while croplands and barren areas transform into savannas. Precipitation, elevation, and mixed forests were found to be the most significant factors influencing KMD distribution. Only 20,690 km2 out of the total area of 324,666 km2 is currently suitable for KMD, but this is projected to increase to 22,701.47 km2 in the future. We predict a habitat gain of about 2,722 km2 in new areas and a loss of 711 km2 in existing habitats for KMD by 2030, with Uttarakhand state losing much of the suitable habitat. However, new habitats in future will become available for the species in Jammu and Kashmir. Our landscape configuration investigation indicates a decline in the number of patches and aggregation index in the future scenario. Most of the suitable KMD habitats are outside the current protected areas (PA), making the current PA network insufficient for long-term conservation. Therefore, we suggest forest managers to rationalize the boundary of the PAs to include suitable habitats that are currently not protected for the long-term survival of the KMD.
- Published
- 2023
- Full Text
- View/download PDF
41. Global, regional, and national incidence of six major immune-mediated inflammatory diseases: findings from the global burden of disease study 2019Research in context
- Author
-
Dongze Wu, Yingzhao Jin, Yuhan Xing, Melsew Dagne Abate, Mohammadreza Abbasian, Mohsen Abbasi-Kangevari, Zeinab Abbasi-Kangevari, Foad Abd-Allah, Michael Abdelmasseh, Mohammad-Amin Abdollahifar, Deldar Morad Abdulah, Aidin Abedi, Vida Abedi, Hassan Abidi, Richard Gyan Aboagye, Hassan Abolhassani, Katrina Abuabara, Morteza Abyadeh, Isaac Yeboah Addo, Kayode Nelson Adeniji, Abiola Victor Adepoju, Miracle Ayomikun Adesina, Qorinah Estiningtyas Sakilah Adnani, Mohsen Afarideh, Shahin Aghamiri, Antonella Agodi, Anurag Agrawal, Constanza Elizabeth Aguilera Arriagada, Aqeel Ahmad, Danish Ahmad, Sajjad Ahmad, Sohail Ahmad, Ali Ahmadi, Ali Ahmed, Ayman Ahmed, Janardhana P. Aithala, Abdullateef Abiodun Ajadi, Marjan Ajami, Mostafa Akbarzadeh-Khiavi, Fares Alahdab, Mohammad T. AlBataineh, Sharifullah Alemi, Adel Ali Saeed Al-Gheethi, Liaqat Ali, Sheikh Mohammad Alif, Joseph Uy Almazan, Sami Almustanyir, Jaber S. Alqahtani, Ibrahim Alqasmi, Ihsan Ullah Khan Altaf, Nelson Alvis-Guzman, Nelson J. Alvis-Zakzuk, Yaser Mohammed Al-Worafi, Hany Aly, Reza Amani, Hubert Amu, Ganiyu Adeniyi Amusa, Catalina Liliana Andrei, Adnan Ansar, Hossein Ansariniya, Anayochukwu Edward Anyasodor, Jalal Arabloo, Reza Arefnezhad, Judie Arulappan, Mohammad Asghari-Jafarabadi, Tahira Ashraf, Jamila Abdulhamid Atata, Seyyed Shamsadin Athari, Daniel Atlaw, Maha Moh'd Wahbi Atout, Avinash Aujayeb, Asma Tahir Awan, Haleh Ayatollahi, Sina Azadnajafabad, Ahmed Y. Azzam, Alaa Badawi, Ashish D. Badiye, Sara Bagherieh, Atif Amin Baig, Berihun Bantie Bantie, Martina Barchitta, Mainak Bardhan, Suzanne Lyn Barker-Collo, Francesco Barone-Adesi, Kavita Batra, Nebiyou Simegnew Bayileyegn, Amir Hossein Behnoush, Uzma Iqbal Belgaumi, Maryam Bemanalizadeh, Isabela M. Bensenor, Kebede A. Beyene, Akshaya Srikanth Bhagavathula, Pankaj Bhardwaj, Sonu Bhaskar, Ajay Nagesh Bhat, Saeid Bitaraf, Veera R. Bitra, Archith Boloor, Kaustubh Bora, João Silva Botelho, Rachelle Buchbinder, Daniela Calina, Luis Alberto Cámera, Andre F. Carvalho, Jeffrey Shi Kai Chan, Vijay Kumar Chattu, Endeshaw Chekol Abebe, Fatemeh Chichagi, Sungchul Choi, Tzu-Chieh Chou, Dinh-Toi Chu, Kaleb Coberly, Vera Marisa Costa, Rosa A.S. Couto, Natália Cruz-Martins, Omid Dadras, Xiaochen Dai, Giovanni Damiani, Ana Maria Dascalu, Mohsen Dashti, Sisay Abebe Debela, Robert Paul Dellavalle, Andreas K. Demetriades, Alemayehu Anley Demlash, Xinlei Deng, Hardik Dineshbhai Desai, Rupak Desai, Syed Masudur Rahman Dewan, Sourav Dey, Samath Dhamminda Dharmaratne, Daniel Diaz, Mahmoud Dibas, Ricardo Jorge Dinis-Oliveira, Mengistie Diress, Thanh Chi Do, Duy Khanh Doan, Masoud Dodangeh, Milad Dodangeh, Deepa Dongarwar, John Dube, Arkadiusz Marian Dziedzic, Abdelaziz Ed-Dra, Hisham Atan Edinur, Negin Eissazade, Michael Ekholuenetale, Temitope Cyrus Ekundayo, Noha Mousaad Elemam, Muhammed Elhadi, Ahmed O. Elmehrath, Omar Abdelsadek Abdou Elmeligy, Mehdi Emamverdi, Theophilus I. Emeto, Hawi Leul Esayas, Habitu Birhan Eshetu, Farshid Etaee, Adeniyi Francis Fagbamigbe, Shahriar Faghani, Ildar Ravisovich Fakhradiyev, Ali Fatehizadeh, Mobina Fathi, Alireza Feizkhah, Ginenus Fekadu, Mohammad Fereidouni, Seyed-Mohammad Fereshtehnejad, João C. Fernandes, Pietro Ferrara, Getahun Fetensa, Irina Filip, Florian Fischer, Behzad Foroutan, Masoud Foroutan, Takeshi Fukumoto, Balasankar Ganesan, Belete Negese Belete Gemeda, Seyyed-Hadi Ghamari, MohammadReza Ghasemi, Maryam Gholamalizadeh, Tiffany K. Gill, Richard F. Gillum, Mohamad Goldust, Mahaveer Golechha, Pouya Goleij, Davide Golinelli, Houman Goudarzi, Shi-Yang Guan, Yang Guo, Bhawna Gupta, Veer Bala Gupta, Vivek Kumar Gupta, Rasool Haddadi, Najah R. Hadi, Rabih Halwani, Shafiul Haque, Ikramul Hasan, Reza Hashempour, Amr Hassan, Treska S. Hassan, Sara Hassanzadeh, Mohammed Bheser Hassen, Johannes Haubold, Khezar Hayat, Golnaz Heidari, Mohammad Heidari, Reza Heidari-Soureshjani, Claudiu Herteliu, Kamran Hessami, Kamal Hezam, Yuta Hiraike, Ramesh Holla, Mohammad-Salar Hosseini, Hong-Han Huynh, Bing-Fang Hwang, Segun Emmanuel Ibitoye, Irena M. Ilic, Milena D. Ilic, Arad Iranmehr, Farideh Iravanpour, Nahlah Elkudssiah Ismail, Masao Iwagami, Chidozie C.D. Iwu, Louis Jacob, Morteza Jafarinia, Abdollah Jafarzadeh, Kasra Jahankhani, Haitham Jahrami, Mihajlo Jakovljevic, Elham Jamshidi, Chinmay T. Jani, Manthan Dilipkumar Janodia, Sathish Kumar Jayapal, Shubha Jayaram, Jayakumar Jeganathan, Jost B. Jonas, Abel Joseph, Nitin Joseph, Charity Ehimwenma Joshua, K. Vaishali, Billingsley Kaambwa, Ali Kabir, Zubair Kabir, Vidya Kadashetti, Feroze Kaliyadan, Fatemeh Kalroozi, Vineet Kumar Kamal, Amit Kandel, Himal Kandel, Srikanta Kanungo, Jafar Karami, Ibraheem M. Karaye, Hanie Karimi, Hengameh Kasraei, Sina Kazemian, Sewnet Adem Kebede, Leila Keikavoosi-Arani, Mohammad Keykhaei, Yousef Saleh Khader, Himanshu Khajuria, Faham Khamesipour, Ejaz Ahmad Khan, Imteyaz A. Khan, Maseer Khan, Md Jobair Khan, Moien A.B. Khan, Muhammad Arslan Khan, Haitham Khatatbeh, Moawiah Mohammad Khatatbeh, Sorour Khateri, Hamid Reza Khayat Kashani, Min Seo Kim, Adnan Kisa, Sezer Kisa, Hyun Yong Koh, Pavel Kolkhir, Oleksii Korzh, Ashwin Laxmikant Kotnis, Parvaiz A. Koul, Ai Koyanagi, Kewal Krishan, Mohammed Kuddus, Vishnutheertha Vishnutheertha Kulkarni, Narinder Kumar, Satyajit Kundu, Om P. Kurmi, Carlo La Vecchia, Chandrakant Lahariya, Tri Laksono, Judit Lám, Kamaluddin Latief, Paolo Lauriola, Basira Kankia Lawal, Thao Thi Thu Le, Trang Thi Bich Le, Munjae Lee, Seung Won Lee, Wei-Chen Lee, Yo Han Lee, Jacopo Lenzi, Miriam Levi, Wei Li, Virendra S. Ligade, Stephen S. Lim, Gang Liu, Xuefeng Liu, Erand Llanaj, Chun-Han Lo, Vanessa Sintra Machado, Azzam A. Maghazachi, Mansour Adam Mahmoud, Tuan A. Mai, Azeem Majeed, Pantea Majma Sanaye, Omar Mohamed Makram, Elaheh Malakan Rad, Kashish Malhotra, Ahmad Azam Malik, Iram Malik, Tauqeer Hussain Mallhi, Deborah Carvalho Malta, Mohammad Ali Mansournia, Lorenzo Giovanni Mantovani, Miquel Martorell, Sahar Masoudi, Seyedeh Zahra Masoumi, Yasith Mathangasinghe, Elezebeth Mathews, Alexander G. Mathioudakis, Andrea Maugeri, Mahsa Mayeli, John Robert Carabeo Medina, Gebrekiros Gebremichael Meles, José João Mendes, Ritesh G. Menezes, Tomislav Mestrovic, Irmina Maria Michalek, Ana Carolina Micheletti Gomide Nogueira de Sá, Ephrem Tesfaye Mihretie, Le Huu Nhat Minh, Reza Mirfakhraie, Erkin M. Mirrakhimov, Awoke Misganaw, Ashraf Mohamadkhani, Nouh Saad Mohamed, Faezeh Mohammadi, Soheil Mohammadi, Salahuddin Mohammed, Shafiu Mohammed, Syam Mohan, Anita Mohseni, Ali H. Mokdad, Sara Momtazmanesh, Lorenzo Monasta, Mohammad Ali Moni, Md Moniruzzaman, Yousef Moradi, Negar Morovatdar, Ebrahim Mostafavi, Parsa Mousavi, George Duke Mukoro, Admir Mulita, Getaneh Baye Mulu, Efrén Murillo-Zamora, Fungai Musaigwa, Ghulam Mustafa, Sathish Muthu, Firzan Nainu, Vinay Nangia, Sreenivas Narasimha Swamy, Zuhair S. Natto, Perumalsamy Navaraj, Biswa Prakash Nayak, Athare Nazri-Panjaki, Hadush Negash, Mohammad Hadi Nematollahi, Dang H. Nguyen, Hau Thi Hien Nguyen, Hien Quang Nguyen, Phat Tuan Nguyen, Van Thanh Nguyen, Robina Khan Niazi, Taxiarchis Konstantinos Nikolouzakis, Lawrence Achilles Nnyanzi, Mamoona Noreen, Chimezie Igwegbe Nzoputam, Ogochukwu Janet Nzoputam, Bogdan Oancea, In-Hwan Oh, Hassan Okati-Aliabad, Osaretin Christabel Okonji, Patrick Godwin Okwute, Andrew T. Olagunju, Matthew Idowu Olatubi, Isaac Iyinoluwa Olufadewa, Michal Ordak, Nikita Otstavnov, Mayowa O. Owolabi, P.A. Mahesh, Jagadish Rao Padubidri, Anton Pak, Reza Pakzad, Raffaele Palladino, Adrian Pana, Ioannis Pantazopoulos, Paraskevi Papadopoulou, Shahina Pardhan, Ashwaghosha Parthasarathi, Ava Pashaei, Jay Patel, Aslam Ramjan Pathan, Shankargouda Patil, Uttam Paudel, Shrikant Pawar, Paolo Pedersini, Umberto Pensato, David M. Pereira, Jeevan Pereira, Maria Odete Pereira, Renato B. Pereira, Mario F.P. Peres, Arokiasamy Perianayagam, Simone Perna, Ionela-Roxana Petcu, Parmida Sadat Pezeshki, Hoang Tran Pham, Anil K. Philip, Michael A. Piradov, Indrashis Podder, Vivek Podder, Dimitri Poddighe, Elton Junio Sady Prates, Ibrahim Qattea, Amir Radfar, Pourya Raee, Alireza Rafiei, Alberto Raggi, Fakher Rahim, Mehran Rahimi, Mahban Rahimifard, Vafa Rahimi-Movaghar, Md Obaidur Rahman, Mohammad Hifz Ur Rahman, Mosiur Rahman, Muhammad Aziz Rahman, Amir Masoud Rahmani, Mohamed Rahmani, Shayan Rahmani, Vahid Rahmanian, Premkumar Ramasubramani, Nemanja Rancic, Indu Ramachandra Rao, Sina Rashedi, Ahmed Mustafa Rashid, Nakul Ravikumar, Salman Rawaf, Elrashdy Moustafa Mohamed Redwan, Nazila Rezaei, Negar Rezaei, Nima Rezaei, Mohsen Rezaeian, Daniela Ribeiro, Mónica Rodrigues, Jefferson Antonio Buendia Rodriguez, Leonardo Roever, Esperanza Romero-Rodríguez, Aly M.A. Saad, Basema Saddik, Saeid Sadeghian, Umar Saeed, Azam Safary, Mahdi Safdarian, Sher Zaman Safi, Amene Saghazadeh, Dominic Sagoe, Fatemeh Saheb Sharif-Askari, Narjes Saheb Sharif-Askari, Amirhossein Sahebkar, Harihar Sahoo, Mohammad Ali Sahraian, Mirza Rizwan Sajid, Sateesh Sakhamuri, Joseph W. Sakshaug, Mohamed A. Saleh, Leili Salehi, Sana Salehi, Amir Salek Farrokhi, Sara Samadzadeh, Saad Samargandy, Noosha Samieefar, Abdallah M. Samy, Nima Sanadgol, Rama Krishna Sanjeev, Monika Sawhney, Ganesh Kumar Saya, Art Schuermans, Subramanian Senthilkumaran, Sadaf G. Sepanlou, Yashendra Sethi, Mahan Shafie, Humaira Shah, Izza Shahid, Samiah Shahid, Masood Ali Shaikh, Sadaf Sharfaei, Manoj Sharma, Maryam Shayan, Hatem Samir Shehata, Aziz Sheikh, Jeevan K. Shetty, Jae Il Shin, Reza Shirkoohi, Nebiyu Aniley Shitaye, K.M. Shivakumar, Velizar Shivarov, Parnian Shobeiri, Soraya Siabani, Migbar Mekonnen Sibhat, Emmanuel Edwar Siddig, Colin R. Simpson, Ehsan Sinaei, Harpreet Singh, Inderbir Singh, Jasvinder A. Singh, Paramdeep Singh, Surjit Singh, Md Shahjahan Siraj, Abdullah Al Mamun Sohag, Ranjan Solanki, Solikhah Solikhah, Yonatan Solomon, Mohammad Sadegh Soltani-Zangbar, Jing Sun, Mindy D. Szeto, Rafael Tabarés-Seisdedos, Seyyed Mohammad Tabatabaei, Mohammad Tabish, Ensiyeh Taheri, Azin Tahvildari, Iman M. Talaat, Jacques J.L. Lukenze Tamuzi, Ker-Kan Tan, Nathan Y. Tat, Razieh Tavakoli Oliaee, Arian Tavasol, Mohamad-Hani Temsah, Pugazhenthan Thangaraju, Samar Tharwat, Nigusie Selomon Tibebu, Jansje Henny Vera Ticoalu, Tala Tillawi, Tenaw Yimer Tiruye, Amir Tiyuri, Marcos Roberto Tovani-Palone, Manjari Tripathi, Guesh Mebrahtom Tsegay, Abdul Rohim Tualeka, Sree Sudha Ty, Chukwudi S. Ubah, Saif Ullah, Sana Ullah, Muhammad Umair, Srikanth Umakanthan, Era Upadhyay, Seyed Mohammad Vahabi, Asokan Govindaraj Vaithinathan, Sahel Valadan Tahbaz, Rohollah Valizadeh, Shoban Babu Varthya, Tommi Juhani Vasankari, Narayanaswamy Venketasubramanian, Georgios-Ioannis Verras, Jorge Hugo Villafañe, Vasily Vlassov, Danh Cao Vo, Yasir Waheed, Abdul Waris, Brhane Gebrehiwot Welegebrial, Ronny Westerman, Dakshitha Praneeth Wickramasinghe, Nuwan Darshana Wickramasinghe, Barbara Willekens, Beshada Zerfu Woldegeorgis, Melat Woldemariam, Hong Xiao, Dereje Y. Yada, Galal Yahya, Lin Yang, Fereshteh Yazdanpanah, Dong Keon Yon, Naohiro Yonemoto, Yuyi You, Mazyar Zahir, Syed Saoud Zaidi, Moein Zangiabadian, Iman Zare, Mohammad A. Zeineddine, Dawit T. Zemedikun, Naod Gebrekrstos Zeru, Chen Zhang, Hanqing Zhao, Chenwen Zhong, Magdalena Zielińska, Mohammad Zoladl, Alimuddin Zumla, Cui Guo, and Lai-shan Tam
- Subjects
Immune-mediated inflammatory disease ,Incidence ,Global burden of disease study ,Trend ,Medicine (General) ,R5-920 - Abstract
Summary: Background: The causes for immune-mediated inflammatory diseases (IMIDs) are diverse and the incidence trends of IMIDs from specific causes are rarely studied. The study aims to investigate the pattern and trend of IMIDs from 1990 to 2019. Methods: We collected detailed information on six major causes of IMIDs, including asthma, inflammatory bowel disease, multiple sclerosis, rheumatoid arthritis, psoriasis, and atopic dermatitis, between 1990 and 2019, derived from the Global Burden of Disease study in 2019. The average annual percent change (AAPC) in number of incidents and age standardized incidence rate (ASR) on IMIDs, by sex, age, region, and causes, were calculated to quantify the temporal trends. Findings: In 2019, rheumatoid arthritis, atopic dermatitis, asthma, multiple sclerosis, psoriasis, inflammatory bowel disease accounted 1.59%, 36.17%, 54.71%, 0.09%, 6.84%, 0.60% of overall new IMIDs cases, respectively. The ASR of IMIDs showed substantial regional and global variation with the highest in High SDI region, High-income North America, and United States of America. Throughout human lifespan, the age distribution of incident cases from six IMIDs was quite different. Globally, incident cases of IMIDs increased with an AAPC of 0.68 and the ASR decreased with an AAPC of −0.34 from 1990 to 2019. The incident cases increased across six IMIDs, the ASR of rheumatoid arthritis increased (0.21, 95% CI 0.18, 0.25), while the ASR of asthma (AAPC = −0.41), inflammatory bowel disease (AAPC = −0.72), multiple sclerosis (AAPC = −0.26), psoriasis (AAPC = −0.77), and atopic dermatitis (AAPC = −0.15) decreased. The ASR of overall and six individual IMID increased with SDI at regional and global level. Countries with higher ASR in 1990 experienced a more rapid decrease in ASR. Interpretation: The incidence patterns of IMIDs varied considerably across the world. Innovative prevention and integrative management strategy are urgently needed to mitigate the increasing ASR of rheumatoid arthritis and upsurging new cases of other five IMIDs, respectively. Funding: The Global Burden of Disease Study is funded by the Bill and Melinda Gates Foundation. The project funded by Scientific Research Fund of Sichuan Academy of Medical Sciences & Sichuan Provincial People's Hospital (2022QN38).
- Published
- 2023
- Full Text
- View/download PDF
42. Fabrication and optimization of AA7075- 7%SiC surface composites using RSM technique via friction stir processing
- Author
-
Amit Kumar and Vineet Kumar
- Subjects
FSP ,Surface metal matrix composite (SMMC) ,Microhardness ,UTS ,Mining engineering. Metallurgy ,TN1-997 - Abstract
Alteration of surface properties of low-strength alloys using friction stir processing (FSP) has been under development for the last three decades. Using FSP, surface composites of metal can be obtained with modified surface properties by inserting reinforcement particles (RPs). Despite having a good strength-to-weight ratio, Al alloys have limited uses due to their weaker surface properties. In this work, AA7075 alloy was used as the matrix to enhance its surface properties by reinforcing SiC particles (07 % by volume) using FSP. The tool speeds, i.e., traverse and rotational speed and no. of passes of the FSP were used as the independent input parameters or factors, and these factors were varied in three levels. The remaining parameters, like tool geometry, tilt angle, axial force, quantity of RPs etc., were kept constant. The selection of independent factors, their working limits and the value of other constant parameters were fixed by conducting trial experiments and examining the latest literature. Tensile strength and microhardness of the fabricated composites were used as responses, and the effects of the three factors on these responses were studied with a central composite design (20 runs) of RSM (response surface methodology). Analysis of variance (ANOVA) developed mathematical equations for finding the responses and suggested that the designed models were significant for both the responses. The maximum microhardness of 155 HV and the maximum strength of 617 MPa were obtained for the run 1 (rotational speed- 730 rpm, traverse speed- 65 mm/min, number of passes- 3).
- Published
- 2023
- Full Text
- View/download PDF
43. Burden of childhood injuries in india and possible public health interventions: A systematic review
- Author
-
Mohan Kumar, Vineet Kumar Pathak, Saparya Tripathi, Anita Upadhyay, Vivek V Singh, and Chandrakant Lahariya
- Subjects
children ,haddon's matrix ,india ,childhood injuries ,primary healthcare ,Public aspects of medicine ,RA1-1270 - Abstract
Childhood injuries are a major public health challenge in India and globally. This systematic review was conducted to understand the burden and spectrum of childhood injuries, with a focus on unintentional injuries, among children 5–14 years of age and to suggest approaches to prevention that can be adopted in the Indian context. This systematic review was conducted with the standard approach and use of keywords. A total of 33 studies which were found to be relevant were analyzed. Road traffic accidents (RTAs) contribute to nearly 85% of all unintentional injuries and related deaths and 90% of disability-adjusted life years (DALYs) lost in developing countries. Poor traffic regulation, heavy traffic load, and poor skill of identifying the dangerous road crossing sites make the children's age group vulnerable and prone to RTA. Children with poor skill of identification and response to dangerous road crossing sites, along with heavy unregulated traffic were found to be the major reasons for such accidents and make this age group more vulnerable. Public health-based prevention approaches need to be based upon legislation, regulation, and enforcement, as well as environmental modification, education and skill development, emergency medical care using levels of prevention, and principles of targeted prevention to effectively address child health challenges. Addressing child injuries should be a key component of all endeavors aimed at enhancing child mortality and morbidity rates, as well as the overall welfare of children, both at the national and global levels. It is imperative to prioritize policies focused on preventing unintentional injuries across all age groups, with particular attention to children.
- Published
- 2023
- Full Text
- View/download PDF
44. Modeling SAR Observables by Combining a Crop-Growth Model With Machine Learning
- Author
-
Tina Nikaein, Paco Lopez-Dekker, Susan C. Steele-Dunne, Vineet Kumar, and Manuel Huber
- Subjects
Crop ,decision support system for agrotechnology transfer (DSSAT) ,forward model ,synthetic aperture radar (SAR) ,Sentinel-1 ,silage maize ,Ocean engineering ,TC1501-1800 ,Geophysics. Cosmic physics ,QC801-809 - Abstract
In this article, our aim is to estimate synthetic aperture radar (SAR) observables, such as backscatter in VV and VH polarizations, as well as the VH/VV ratio, cross ratio, and interferometric coherence in VV, from agricultural fields. In this study, we use the decision support system for agrotechnology transfer (DSSAT) crop-growth simulation model to simulate parcel-level phenological and growth parameters for over 1500 parcels of silage maize in the Netherlands. The crop model was calibrated using field data, including silage maize phenological phases, leaf area index, and above-ground dry biomass (AGB). The simulations incorporate fine-resolution gridded precipitation data and soil parameters to model the interaction between soil–plant–atmosphere and genotype in DSSAT. The crop variables produced by DSSAT are then used as inputs to a support vector regression model. This model is trained to simulate SAR observables in 2017, 2018, and 2019, and its performance is evaluated using independent fields in each of these years. The results show a close fit between modeled and observed SAR C-band observables. The importance of vegetation variables in the estimation of SAR observables is assessed. The AGB showed significant importance in the estimation of backscatter. This study demonstrates the potential value of combining crop-growth simulation models and machine learning to simulate SAR observables. For example, the SVR model developed here could be used as an observation operator in an assimilation context to constrain vegetation and soil water dynamics in a crop-growth model.
- Published
- 2023
- Full Text
- View/download PDF
45. Impact of learning effect on reliability factors and global indices in visual field testing by standard automated perimetry in normal healthy subjects and primary open-angle glaucoma patients to obtain an accurate baseline perimetry chart
- Author
-
Jagriti Rana, Anjali Singh, Arti Singh, Kamaljeet Singh, Shivangi Singh, and Vineet Kumar Yadav
- Subjects
global indices ,learning effect ,perimetry ,reliability parameters ,Ophthalmology ,RE1-994 - Abstract
Purpose: To record and evaluate the reliability parameters (fixation loss (FL) %, false positive (FP) %) and global indices (mean sensitivity (MS), mean deviation (MD), pattern standard deviation in dB) in three visual field test sessions within two weeks to assess the learning effect in normal healthy subjects and POAG patients and comparison of learning effect gender wise and age wise in primary open-angle glaucoma (POAG) patients. Methods: This study was a prospective observational study. An oculus visual field testing was done and analyzed in 30 eyes of POAG patients and 30 eyes of normal healthy subjects in three visits. Results: There were 16 (53.3%) males and 14 (46.6%) females in the POAG group and 16 (53.33%) males and 14 (46.66%) females in the normal healthy subject group. A significant difference in data change between each visit in FL, FP, MD, MS was found though the difference was more pronounced in the second visit than in the third visit. The pattern standard deviation does not change significantly in subsequent visits in both groups. Gender wise and age wise no significant difference was found in the POAG group. Conclusion: Significant improvement in reliability parameters and global indices with each subsequent visit in both the POAG group and normal patients signifies the importance of learning effect on these parameters and the need to perform at least three tests to get the baseline perimetry chart, especially in POAG patients, while in normal subjects, second perimetric result can be accepted. It was also concluded that the learning effect is not influenced by age and gender.
- Published
- 2023
- Full Text
- View/download PDF
46. Study 3: Anterior segment optical coherence tomography-guided surgical approach in slipped medial rectus muscle
- Author
-
Amar Pujari, Sai Vineeth Maddu, Vineet Kumar Batwani, Sudarshan Khokhar, Paritosh Jha, and Namrata Sharma
- Subjects
as-oct ,extraocular muscle imaging ,slipped medial rectus muscle ,Ophthalmology ,RE1-994 - Abstract
Purpose: To discuss the novel swept-source anterior segment optical coherence tomography (SS-ASOCT)-guided surgical approach in slipped medial rectus muscles. Methods: Prospectively (between February 2020 and July 2022), six patients with a clinical suspicion of slipped medial rectus muscle were recruited. After complete ophthalmic and orthoptic evaluation, the missing medial rectus muscle is screened using Anterior Segment Optical Coherence Tomography (ASOCT). In presence of a traceable muscle, its morphology, depth, and distance from a fixed anatomical landmarks were noted; in its absence, the status of other recti was noted. Intraoperatively, the features were confirmed and the intended intervention was performed. Results: The mean age of six patients was 25.66 ± 9.72 years, two with surgical trauma and four with penetrating trauma (66.66%). In five patients, the ASOCT traced the slipped medial rectus muscle successfully (83.33%); intraoperatively, the same was confirmed (within 1–2 millimeters) with favorable outcomes. ASOCT made a significant contribution in all subjects by reducing the number of interventions and muscle surgeries. Conclusions: In eyes with slipped medial rectus muscle, especially those which are within a finite distance from the angle can be traced using ASOCT. This approach impacts the outcomes in many ways.
- Published
- 2023
- Full Text
- View/download PDF
47. Multi-species occupancy modeling suggests interspecific interaction among the three ungulate species
- Author
-
Hemant Singh, Amira Sharief, Bheem Dutt Joshi, Vineet Kumar, Tanoy Mukherjee, Kailash Chandra, Nitin Bhardwaj, Mukesh Thakur, and Lalit Kumar Sharma
- Subjects
Medicine ,Science - Abstract
Abstract Species with sympatric distribution influence ecosystem dynamics and are impacted by the presence of other co-existing species. Assessing the coexistence and the role of interspecific interactions with the landscape variables is necessary to know the species co-occurrence in space. In the Indian Himalayan region, such studies are completely lacking due to limited efforts being made, mainly because of complex terrains and inaccessible landscape features. We used camera trapping and sign survey in a multi-species occupancy framework to understand the influence of environmental variables on occupancy and detection probability of species-specific and pair-wise interaction of the three ungulates in Uttarkashi. Our results concluded that individual species' occupancy probabilities were related both to the environmental variables and the presence or absence of other interacting species. Our top model showed evidence of interspecific interaction among species pairs, and the occupancy probability of species one varied in the presence or absence of another species. The overall activity patterns were similar among all the three species and were found active throughout the day. The activity overlap between sambar—barking deer (Dhat1 value = 0.85) was considerably higher than barking deer—goral (Dhat1 value = 0.78). The findings of the present study will be useful for the conservation and management of ungulates in the Indian Himalayan and adjoining regions.
- Published
- 2022
- Full Text
- View/download PDF
48. Multifunctional properties of chemically reduced graphene oxide and silicone rubber composite: Facile synthesis and application as soft composites for piezoelectric energy harvesting
- Author
-
Vineet Kumar, Tapas Kumar Mandal, Anuj Kumar, Md Najib Alam, Nargish Parvin, Sang Woo Joo, Dong Joo Lee, and Sang-Shin Park
- Subjects
polymer composites ,chemically reduced graphene oxide ,silicone rubber ,Materials of engineering and construction. Mechanics of materials ,TA401-492 ,Chemical technology ,TP1-1185 - Abstract
The 6th element of the periodic table is undoubtedly one of the most incredible aspects of creation. Graphene has a 2-D sheet structure comprised of strong covalent bonds between sp2 hybridized carbon atoms and has attracted much research interest because of its unique physicochemical properties. However, the controlled syntheses of mono-layered and few-layered graphene remain topics of research concern. In the present work, chemically reduced graphene oxide (CRGO) was synthesized by ‘top-down’ using the modified Hummers’ method. CRGO and room-temperature-vulcanized silicone rubber (RTV-SR) were mixed to prepare composites with different CRGO loadings. We found that as little as 2 per hundred parts of rubber [phr] CRGO in RTV-SR transformed the normally rigid RTV-SR into a soft composite with a hardness decrease to 15. Moreover, the compressive modulus falls to 0.6 MPa. However, the dissipation losses decrease at 2 phr CRGO, which is a good property. For tensile mechanical properties, the fracture strain increases to 100% while tensile strength falls sharply to 0.1 MPa. Moreover, the electrical conductivity increases as the amount of CRGO increases. So, composite with soft nature and higher electrical properties are useful for various applications such as soft robotics or soft piezoelectric energy harvesting. In this work, the piezoelectric energy harvesting was performed by monitoring the output voltages generated. Output voltages were stable for RTV-SR but increased with increasing cycle number for RTV-SR/CRGO-based composites. This study provides insights into the use of soft RTV-SR/CRGO composites for soft robotics, actuation, energy harvesting, and vehicle applications.
- Published
- 2022
- Full Text
- View/download PDF
49. Functional Outcome Analysis of Cubitus Varus Deformity Treatment in Children undergoing Modified French Osteotomy with Technical Modification: A Retrospective Cohort Study
- Author
-
Madhusudan Mishra, Swagat Mahapatra, Vineet Kumar, Pankaj Aggarwal, Sachin Avasthi, Mohd Ammar Aslam, and Prabhat Kumar
- Subjects
elbow deformity ,lateral closing wedge osteotomy ,paediatric ,Medicine - Abstract
Introduction: Lateral closing wedge osteotomy is an accepted correction method for cubitus varus deformity. The techniques used to fix the osteotomy mostly lead to either angulation or loss of correction during the final tightening of the Stainless Steel (SS) wire at the osteotomy site. The records for patients undergoing two modifications in a conventional modified French Osteotomy were analysed. Four wires, two proximal and two distal to the osteotomy site for precision and guided compression over the other additional Kirschner wire (K-wire) at the osteotomy site, were the two modifications in these patients. Aim: To analyse the functional outcome of cubitus varus deformity in children treated with technical modifications of modified French osteotomy. Materials and Methods: This was a retrospective cohort study done at the Department of Orthopaedics, Dr. Ram Manohar Lohia Institute of Medical Sciences, Lucknow, Uttar Pradesh, India. The study duration was three years (from April 2019 to April 2022). A total of 34 cubitus varus deformity patients were included in this study who were operated with lateral closing wedge-modified French osteotomy with technical modification by K-wires. The patients were followed-up for a minimum of six months. The results were analysed using Quick Disabilities of the Arm, Shoulder and Hand (DASH) and Flynn’s criteria. Statistical Package for the Social Sciences (SPSS) version 21.0 was used and p-value
- Published
- 2023
- Full Text
- View/download PDF
50. Methacrylic acid as a potential monomer for molecular imprinting: A review of recent advances
- Author
-
Kumar Nishchaya, Vineet Kumar Rai, and Himanshu Bansode
- Subjects
Methacrylic acid ,Molecular imprinted polymer ,Monomer ,Drug delivery ,Materials of engineering and construction. Mechanics of materials ,TA401-492 - Abstract
Molecular Imprinted polymers (MIPs) are man-made receptors for the specific molecules of drug delivery use. These polymers are meant for their site-specificity and recognition. Molecular Imprinting Technique (MITs) comprised of Template, Functional Monomers, Cross-Linkers, Initiators, and solvents. Methacrylic acid (MAA) has shown its potential utility as a monomer for molecular imprinting. It is the most used and preferred monomer with great future potential. Therefore, this review highlights different aspects of MAA as a universal functional monomer that is believed to happen due to its flexibility, robustness, durability, etc. Computational Methods exhibit MAA as one of the most compatible monomers showing excellent binding efficacy with a wide range of drug molecules. A comprehensive assessment of its physiochemical, interactive, and binding properties is deliberately compiled along with the biodegradability of MAA. This review also highlights the future prospects, recent advances, and current applications, including MAA-based Nano MIPs, and trigger-responsive MIPs related to drug delivery. The comparative studies showed that MIPs and Non-MIPs have a drastic difference in their drug release either controlled or sustained. Eventually, the trend pattern associated with drug classification and disease diagnosis in the past decade showcases the tremendous utility of MAA-MIP in various fields of pharmaceutical and medical importance.
- Published
- 2023
- Full Text
- View/download PDF
Catalog
Discovery Service for Jio Institute Digital Library
For full access to our library's resources, please sign in.