18 results on '"M. Pise"'
Search Results
2. Macroscopic model based on application of representative volume element for steel fiber reinforced high performance concrete
- Author
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M. Pise, D. Brands, J. Schröder, G. Gebuhr, and S. Anders
- Subjects
Bauwissenschaften - Published
- 2022
- Full Text
- View/download PDF
Catalog
3. Phase-field modeling of fracture in high performance concrete during low-cycle fatigue : Numerical calibration and experimental validation
- Author
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J. Schröder, M. Pise, D. Brands, G. Gebuhr, and S. Anders
- Subjects
Mechanics of Materials ,Mechanical Engineering ,Computational Mechanics ,General Physics and Astronomy ,Computer Science Applications ,Bauwissenschaften - Published
- 2022
4. A REVIEW ON DESIGN AND DEVELOPMENT OF CHAIRLESS CHAIR BY USING DAMPER
- Author
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Rahul B. Madane, Shahaji M. Pawar, Rajkumar B. Rede Patil, Ramesh M. Raste, Somnath M. Pise, Mayur D. Jagtap, Rahul B. Madane, Shahaji M. Pawar, Rajkumar B. Rede Patil, Ramesh M. Raste, Somnath M. Pise, and Mayur D. Jagtap more...
- Abstract
It is very difficult to stand and work for overall shift in the company by a worker. This will reduce the efficiency of the worker. The solution to this problem is to have a portable device which has an ergonomic design, low cost exoskeletons. In this work a mechanical ergonomics device that is designed around the shape and function of the human body, with segments and joints corresponding to those of the person it is externally coupled with. It functions as a chair whenever it is needed and is coined as Chair less Chair. Worker in industrial can wear it on legs like an exoskeleton. It locks into place and you can sit down on it. The device never touches the ground, which makes it easier to wear: a belt secures it to the hips and it has straps that wrap around the thighs. These are specially designed and part of the mechanism, but an alternate version works with any footwear and touches the ground only when in a stationary position. The user just moves into the desired pose. It will fit closely to lower part of the body as an external body part on which maximum body forces act upon. It is a cost effective product and any error in design may fail the structure which creates loss. So, these forces should be carefully analyzed during the design of structure. The best way to predict these forces during pre-manufacturing stage is to make an analysis on the structure with the help of software. This helps in estimating the stresses induced on the structure which is one of the most important criteria for evaluation of the model. more...
- Published
- 2021
5. Synthesis and Characteristics of CdS Nanoparticles in Normal (1 g) and Simulated Microgravity (SMG)
- Author
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L. D. Adhav, R. M. Pise, Sagar Jagtap, and Pravin S. Shinde
- Subjects
Materials science ,Chemical engineering ,Simulated microgravity ,Nanoparticle ,General Medicine ,lcsh:Physics ,lcsh:QC1-999 - Abstract
In the present investigation, the cadmium sulphide (CdS) nanoparticles are synthesized in the normal gravity i.e. 1 g (called as control) and in simulated microgravity (called as SMG). The SMG was created by using an instrument called Random Positioning Machine (RPM). Cadmium sulfide nanoparticles were synthesized by using standard chemical method under normal gravity (1 g) and simulated microgravity conditions. The synthesized CdS nanoparticles were characterized by Ultraviolet Visible spectroscopy, Fourier Transform Infrared Ray spectroscopy (FTIR), X-ray diffraction (XRD). The UV-visible absorption spectrum of CdS nanoparticle solution showed a distinct absorption peak at 472.19 nm in control and 458.26 nm in SMG. The band gap calculated from the absorption edge for microgravity sample was 2.71 eV and for control sample was 2.63 eV. The crystalline size of CdS nanoparticles synthesised in control and Micro-g was determined by XRD. Obtained results showed smaller the particle size in microgravity sample (10.78 nm) as compared to control sample (13.89 nm). more...
- Published
- 2020
- Full Text
- View/download PDF
6. Effects of Process Parameters on Machining Characteristics using WEDM of Inconel 625: A Review
- Author
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Niteen P. Tippe, B. S. Kamble, and S. M. Pise
- Subjects
0209 industrial biotechnology ,020901 industrial engineering & automation ,Materials science ,Machining ,Metallurgy ,Process (computing) ,02 engineering and technology ,021001 nanoscience & nanotechnology ,0210 nano-technology ,Inconel 625 - Published
- 2017
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7. Oxidative stress and antioxidant indices of the marine red alga Porphyra vietnamensis
- Author
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Dattatry K. Gaikwad, Tanaji G. Jagtap, and Navnath M. Pise
- Subjects
Antioxidant ,Porphyra vietnamensis ,lipid peroxidation ,antioxidant ,biomarker ,oxidative stress ,medicine.medical_treatment ,Plant Science ,Glutathione ,Biology ,medicine.disease_cause ,Ascorbic acid ,Lipid peroxidation ,chemistry.chemical_compound ,chemistry ,Catalase ,Botany ,medicine ,biology.protein ,Hydrogen peroxide ,Ecology, Evolution, Behavior and Systematics ,Oxidative stress - Abstract
Oxidative stress and antioxidant defence systems were assessed in a marine red alga Porphyra vietnamensis Tanaka et Pham-Hoang Ho, from India. Lipid peroxidation (LPX) and hydrogen peroxide (H2O2) were measured as oxidative stress markers. Antioxidant defences were measured as catalase (CAT), glutathione S-transferase (GST) and ascorbic acid (AsA), in order to understand their dissimilarity with respect to environmental conditions (pollution levels) from selective locations along the central west coast of India. Levels of LPX, H2O2, CAT and GST were significantly higher in samples collected from Dona Paula than in samples from Malvan and Kunkeshwar, while a lower concentration of AsA was found in samples from Dona Paula. Heavy metals such as Cd, Pb and Hg in higher concentrations in these areas than in other sites were also observed. Variation of oxidative stress indices in response to the accumulation of heavy metals within P. vietnamensis could be used as molecular biomarkers for the assessment and monitoring of environmental quality in ecologically sensitive marine habitats. more...
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- 2013
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8. Biochemical Composition of Seaweeds along Central West Coast of India
- Author
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N. M. Pise and Anjali B. Sabale
- Subjects
Pharmacology ,Dry weight ,Aquatic plant ,Drug Discovery ,Botany ,Ulva fasciata ,Biochemical composition ,West coast ,Biology ,Corticata ,biology.organism_classification ,Chemical composition ,Gracillaria - Abstract
Seaweeds from Asia have a great commercial application as the source of phycocolloides since a very long time. Present investigation reveals biochemical composition of three commonly occurring seaweeds, along the central west coast of India. Seaweeds viz. Ulva fasciata (green), Sargassum ilicifolium (brown) and Gracillaria corticata (red) were analyzed for protein, lipid, carbohydrate, ash and mineral content. S. ilicifolium ranked highest in total protein content among the species analyzed. All species contained approximately 5% crude lipid, although U. fasciata species had 6.3% crude lipid based on dry weight. Total carbohydrates ranged from 4.2 to 6.72% dry weight. Ash values ranged from 7.5% to 15.9%. All species contained measurable quantities of 10 essential mineral elements. more...
- Published
- 2010
- Full Text
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9. First Report of Leaf Spot Caused by Fusarium sp. NFCCI 2882 on Angiopteris evecta: A King Fern From Western Ghats, India
- Author
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A. M. Mali, V. B. Patil, Avinash B. Ade, and N. M. Pise
- Subjects
0106 biological sciences ,0301 basic medicine ,Fusarium ,030106 microbiology ,Plant Science ,Biology ,biology.organism_classification ,01 natural sciences ,03 medical and health sciences ,Botany ,Angiopteris evecta ,Leaf spot ,Fern ,Agronomy and Crop Science ,010606 plant biology & botany - Published
- 2016
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10. Oxidative stress and antioxidant indices of the marine red alga Porphyra vietnamensis
- Author
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Navnath M. Pise, Dattatry K. Gaikwad, Tanaji G. Jagtap, Navnath M. Pise, Dattatry K. Gaikwad, and Tanaji G. Jagtap
- Abstract
Oxidative stress and antioxidant defence systems were assessed in a marine red alga Porphyra vietnamensis Tanaka et Pham-Hoang Ho, from India. Lipid peroxidation (LPX) and hydrogen peroxide (H2O2) were measured as oxidative stress markers. Antioxidant defences were measured as catalase (CAT), glutathione S-transferase (GST) and ascorbic acid (AsA), in order to understand their dissimilarity with respect to environmental conditions (pollution levels) from selective locations along the central west coast of India. Levels of LPX, H2O2, CAT and GST were significantly higher in samples collected from Dona Paula than in samples from Malvan and Kunkeshwar, while a lower concentration of AsA was found in samples from Dona Paula. Heavy metals such as Cd, Pb and Hg in higher concentrations in these areas than in other sites were also observed. Variation of oxidative stress indices in response to the accumulation of heavy metals within P. vietnamensis could be used as molecular biomarkers for the assessment and monitoring of environmental quality in ecologically sensitive marine habitats. more...
- Published
- 2013
11. Effectiveness of digital feedback on patient experience and 30-day complications after screening colonoscopy: a randomized health services study
- Author
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M. Bugajski, P. Wieszczy, M. Pisera, M. Rupinski, G. Hoff, G. Huppertz-Hauss, J. Regula, M. Bretthauer, and M. F. Kaminski
- Subjects
Diseases of the digestive system. Gastroenterology ,RC799-869 - Abstract
Background and study aims European guidelines (ESGE) recommend measuring patient experience and 30-day complication rate after colonoscopy. We compared digital and paper-based feedback on patients’ experience and 30-day complications after screening colonoscopy. Patients and methods Screenees attending for primary screening colonoscopies in two centers from September 2015 to December 2016 were randomized (1:1) to an intervention arm (choice of feedback method) or control arm (routine paper-based feedback). Participants in the intervention arm could choose preferred feedback method (paper-based, automated telephone or online survey) and were contacted by automated telephone 30 days after colonoscopy to assess complications. Control group participants self-reported complications. Primary and secondary endpoints were response rates to feedback and complications questionnaire, respectively. Results There were 1,281 and 1,260 participants in the intervention and control arms, respectively. There was no significant difference in response rate between study groups (64.8 % vs 61.5 %; P = 0.08). Free choice of feedback improved response for participants identified as poor responders: younger than 60 years (60.8 % vs 54.7 %; P = 0.031), male (64.0 % vs 58.6 %; P = 0.045) and in small non-public center (56.2 % vs 42.5 %; P = 0.043). In the intervention arm, 1,168 participants (91.2 %) answered the phone call concerning complications. A total of 79 participants (6.2 %) reported complications, of which two (0.2 %) were verified by telephone as clinically relevant. No complications were self-reported in the control group. Conclusion The overall response rate was not significantly improved with digital feedback, yet the technology yielded significant improvement in participants defined as poor responders. Our study demonstrated feasibility and efficacy of digital patient feedback about complications after colonoscopy. more...
- Published
- 2019
- Full Text
- View/download PDF
12. Synthesis and Characteristics of CdS Nanoparticles in Normal (1 g) and Simulated Microgravity (SMG)
- Author
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P. S. Shinde, L. D. Adhav, R. M. Pise, and S. S. Jagtap
- Subjects
Physics ,QC1-999 - Abstract
In the present investigation, the cadmium sulphide (CdS) nanoparticles are synthesized in the normal gravity i.e. 1 g (called as control) and in simulated microgravity (called as SMG). The SMG was created by using an instrument called Random Positioning Machine (RPM). Cadmium sulfide nanoparticles were synthesized by using standard chemical method under normal gravity (1 g) and simulated microgravity conditions. The synthesized CdS nanoparticles were characterized by Ultraviolet Visible spectroscopy, Fourier Transform Infrared Ray spectroscopy (FTIR), X-ray diffraction (XRD). The UV-visible absorption spectrum of CdS nanoparticle solution showed a distinct absorption peak at 472.19 nm in control and 458.26 nm in SMG. The band gap calculated from the absorption edge for microgravity sample was 2.71 eV and for control sample was 2.63 eV. The crystalline size of CdS nanoparticles synthesised in control and Micro-g was determined by XRD. Obtained results showed smaller the particle size in microgravity sample (10.78 nm) as compared to control sample (13.89 nm). more...
- Published
- 2020
- Full Text
- View/download PDF
13. Development and Calibration of a Phenomenological Material Model for Steel-Fiber-Reinforced High-Performance Concrete Based on Unit Cell Calculations.
- Author
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Pise M, Brands D, and Schröder J
- Abstract
A phenomenological material model has been developed to facilitate the efficient numerical analysis of fiber-reinforced high-performance concrete (HPC). The formulation integrates an elasto-plastic phase-field model for simulating fractures within the HPC matrix, along with a superimposed one-dimensional elasto-plasticity model that represents the behavior of the embedded fibers. The Drucker-Prager plasticity and one-dimensional von-Mises plasticity formulations are incorporated to describe the nonlinear material behavior of both the HPC matrix and the fibers, respectively. Specific steps are undertaken during the development and calibration of the phenomenological material model. In the initial step, an experimental and numerical analysis of the pullout test of steel fibers embedded in an HPC matrix is conducted. This process is used to calibrate the micro-mechanical model based on the elasto-plastic phase-field formulation for fracture. In the subsequent step, virtual experiments based on an ellipsoidal unit cell, also with the resolution of fibers (used as a representative volume element, RVE), are simulated to analyze the impact of fiber-matrix interactions and their physical properties on the effective material behavior of fiber-reinforced HPC. In the final step, macroscopic boundary value problems (BVPs) based on a cuboid are simulated on a single scale using the developed phenomenological material model. The resulting macroscopic stress-strain characteristics obtained from both types of simulations, namely simulations of virtual experiments and macroscopic BVPs, are compared. This comparison is utilized for the calibration of material parameters to obtain a regularized solution and to assess the effectiveness of the presented phenomenological material model. more...
- Published
- 2024
- Full Text
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14. Diurnal variation in salivary progesterone in fertile Indian women.
- Author
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Patil S, Patil N, Bhat R, Hardikar-Bhat P, Jadhav D, Dervankar O, Joglekar C, Shinde R, Desai S, Chavan D, Pise M, and Nandoskar A
- Abstract
Research Question: Is there a diurnal variation in salivary progesterone levels during menstrual cycle among Indian women?, Design: A longitudinal study was carried out to measure progesterone in saliva among small cross-sectional sample (n = 31) of fertile Indian women of reproductive age comprising young adults (18-25 years, n = 11), adults (26-38 years, n = 9) and middle aged (39-45 years, n = 11). Saliva samples were collected twice daily (morning and evening) across the entire menstrual cycle of 31 women., Results: Mean ages at enrolment and menarche were 30.6 years and 13.6 years respectively. Fifty-five percent of the women were married. The menstrual cycle range was 20-40 days. After controlling for age and menstrual cycle length, statistically significant diurnal variation in progesterone levels was observed across menstrual cycles with high levels in the morning., Conclusions: This is the first report on salivary progesterone in subjects with Indian ethnicity and could have clinical implications for designing point of care kits for menstrual cycle management, fertility and reproduction., Competing Interests: None of the authors have any competing interests to declare., (© 2022 Published by Elsevier Ltd.) more...
- Published
- 2022
- Full Text
- View/download PDF
15. Micro-contaminant, but immense impact: Source and influence of diethyl phthalate plasticizer on bottom-dwelling fishes.
- Author
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Kumkar P, Pise M, Verma CR, Khare T, Petrtýl M, and Kalous L
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- Animals, Ecosystem, Fishes metabolism, Glutathione Transferase metabolism, Microplastics, Oxidative Stress physiology, Phthalic Acids, Plastics, Plasticizers toxicity, Water Pollutants, Chemical toxicity
- Abstract
Sustainable plastic-waste management is becoming increasingly challenging as enormous loads of plastic debris regularly accumulate in susceptible ecosystems. The microplastic (MP) particles generated from these plastic wastes are imposing additional threats to these ecosystems due to their small size as well as their ability to adsorb and carry toxic chemicals. The current investigation deals with one such MP-originated toxicant, diethyl phthalate (DEP), and its impact on two species of freshwater loaches from the Western Ghats of India, Lepidocephalichthys thermalis and Indoreonectes evezardi. The MP samples were collected from the sediments of the Mula River and characterized using spectroscopic methods and scanning electron microscopy. Polymers, such as polyvinyl chloride and polypropylene, were identified in the collected MPs. GC-MS analysis of the MP extracts revealed the presence of DEP, confirming the MP waste as a potential source of DEP pollution. Further, to evaluate the effect of DEP on survival of selected loaches, L. thermalis and I. evezardi were exposed to DEP concentrations (18.75-300 mg L
-1 ) and the lethal DEP dose (LC50 ) was estimated to be 44.53 mg L-1 for L. thermalis and 34.64 mg L-1 for I. evezardi. Fishes were further exposed to sub-lethal DEP concentration for one day (Short term exposure: STE) or eight days (Long term exposure: LTE) to analyze the histological condition and oxidative status of the liver in response to DEP treatment. Histology revealed congestion of sinusoids and vacuolization after the LTE. Higher lipid peroxidation levels were also measured in the livers of both species treated with DEP, which indicated DEP-mediated oxidative damage. The antioxidant enzymes including superoxide dismutase, catalase, peroxidase and glutathione-S-transferase displayed elevated activities in response to STE and LTE of DEP. Collectively, the results demonstrate that MPs in the Mula River are a potential source of DEP. The findings also show that DEP exposure can be fatal to freshwater fishes such as loaches, possibly by causing increased oxidative damage to the hepatic system., (Copyright © 2022 Elsevier Ltd. All rights reserved.) more...- Published
- 2022
- Full Text
- View/download PDF
16. Damage Evolution of Steel Fibre-Reinforced High-Performance Concrete in Low-Cycle Flexural Fatigue: Numerical Modeling and Experimental Validation.
- Author
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Gebuhr G, Pise M, Anders S, Brands D, and Schröder J
- Abstract
This contribution aims to analyze the deterioration behaviour of steel fibre-reinforced high-performance concrete (HPC) in both experiments as well as numerical simulations. For this purpose, flexural tensile tests are carried out on beams with different fibre contents and suitable damage indicators are established to describe and calibrate the damage behaviour numerically using a phase-field model approach. In addition to conventional measurement methods, the tests are equipped with acoustic emission sensors in order to obtain a more precise picture of crack evolution by observing acoustic events. It is shown that, in addition to classical damage indicators, such as stiffness degradation and absorbed energy, various acoustic indicators, such as the acoustic energy of individual crack events, can also provide information about the damage progress. For the efficient numerical analysis of the overall material behaviour of fibre-reinforced HPC, a phenomenological material model is developed. The data obtained in the experiments are used to calibrate and validate the numerical model for the simulation of three-point bending beam tests. To verify the efficiency of the presented numerical model, the numerical results are compared with the experimental data, e.g., load-CMOD curves and the degradation of residual stiffness. more...
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- 2022
- Full Text
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17. In silico analysis and homology modeling of strictosidine synthase involved in alkaloid biosynthesis in catharanthus roseus.
- Author
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Sahay A, Piprodhe A, and Pise M
- Abstract
Background: In this study, strictosidine synthase (STR) from Catharanthus roseus that plays an important role in alkaloid biosynthesis was selected. The purpose of this work was to perform in silico analysis and to predict the three-dimensional structure of this protein that is not available., Results: Physicochemical characterization was performed by Expasy's Protparam server. The computed theoretical isoelectric point (pI) found to be less than 7 indicates the acidic nature of this protein. The aliphatic index 73.04 indicates the thermal stability of the protein. Grand average hydropathy (GRAVY) was predicted to be - 285; this lower value of GRAVY shows the possibility of better interaction of this protein with water. Functional analysis of these proteins was performed by SOSUI server which predicted the transmembrane helix. Secondary structure analysis was carried out by SOPMA that revealed that Alpha helix dominated among secondary structure elements followed by random coil, extended strand, and beta turns. The modeling of the three-dimensional structure of the STR was performed by Swiss model. The model was validated using protein structure checking tools PROCHECK and PROVE., Conclusions: This study reveals in silico analysis by Expasy Protparam server, SOPMA, and SOSUI server. Homology modeling of STR was performed by Swiss model. more...
- Published
- 2020
- Full Text
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18. Cellular Oxidative Stress in Pediatric Leukemia and Lymphoma Patients Undergoing Treatment Is Associated with Protein Consumption.
- Author
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Raber M, Wu J, Donnella H, Knouse P, Pise M, Munsell M, Liu D, and Chandra J
- Subjects
- Child, Child, Preschool, Cohort Studies, Female, Humans, Infant, Leukemia drug therapy, Leukocytes, Mononuclear chemistry, Leukocytes, Mononuclear metabolism, Lymphoma diet therapy, Male, Oxidation-Reduction, Oxidative Stress physiology, Pilot Projects, Prospective Studies, Reactive Oxygen Species blood, Antineoplastic Agents adverse effects, Dietary Proteins administration & dosage, Leukemia blood, Lymphoma blood, Nutritional Status physiology, Oxidative Stress drug effects
- Abstract
Over and under nutrition are associated with worse outcomes for children with leukemia and lymphoma; however, the molecular basis for this clinical observation is not well understood. Many chemotherapeutics used for leukemia treatment are known to generate oxidative stress in vitro; therefore, we evaluated redox status and diet in pediatric leukemia patients during therapy in order to ascertain relationships between nutrition and oxidative stress. Dietary intake and redox measures in peripheral blood mononuclear cells from 32 pediatric leukemia and lymphoma patients were collected over six months during treatment. Baseline measures when patients were off chemotherapy and subsequent assessments were collected after one, two and six months. Oxidative stress increased over time in all patients, consistent with chemotherapy-induced redox effects. Older and younger children showed significantly different baseline levels of reactive oxygen species, which increased over time in all age ranges. Diet was assessed at points proximal to oxidative stress measurements and revealed a novel association with consumption of animal protein, vegetable protein, and total protein intake. Our findings demonstrate that chemotherapy increases oxidative stress in pediatric leukemia patients, and raises the possibility that dietary protein or altered protein metabolism could contribute to clinical outcomes. more...
- Published
- 2019
- Full Text
- View/download PDF
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