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Background and Aim: Despite the sustained progress in the realm of intraoperative neurophysiologic monitoring of the nervous system, little progress has been achieved in monitoring the olfactory pathway. Loss of olfactory function due to retraction-induced physical damage during operations has ill-appreciated negative consequences for the patients and is often underreported. Improvements in this area of neuromonitoring require a revisit of the technical challenges. We aim to describe the method to construct flexible, bipolar silver ball electrodes to stimulate the olfactory mucosa during cranial neurosurgery and suggest ways to overcome the challenges in eliciting olfactory evoked potentials. Materials and Methods: We analyze the potential difficulties in routinely eliciting olfactory evoked potential in neurosurgical operations and summarize ways to overcome them. We also describe the construction of a simple electrical stimulator electrode for the olfactory mucosa, its application, and potential recording sites in an effort to detect the potential during cranial neurosurgery. Results: We created flexible, insulated bipolar silver electrodes and placed them atraumatically on the olfactory mucosa under endoscopic guidance, bilaterally, in 22 patients. We obtained an optimal position in less than 10 minutes in most cases. We also summarize the challenges faced and potential paths to overcome them. Conclusions: Though electrical stimulation of the olfactory mucosa using custom-made silver electrodes is possible and takes little time to place them as part of an intraoperative neurophysiologic monitoring setup, detecting the minute potential remains elusive. Keywords: Intraoperative neuromonitoring, olfactory evoked potentials, olfactory mucosa, Author(s): Bujji Karre [1]; Gopalakrishnan M. Sasidharan (corresponding author) [1] Key Message: Though olfactory mucosal stimulation and the setting up of recording electrodes during cranial neurosurgery are feasible, reliable detection [...]

Villous hyperplasia of choroid plexus (VHCP) is a very rare benign condition characterized by diffuse enlargement of the choroid plexus with overproduction of cerebrospinal fluid (CSF), thus leading to shunt-resistant hydrocephalus in children. Although ultrasonography (USG) and computed tomography (CT) may aid in diagnosing the communicating hydrocephalus and choroid plexus enlargement, the diagnosis is essentially made on magnetic resonance imaging (MRI) by demonstrating diffuse enlargement and enhancement of the choroid plexus of the lateral ventricles diffusely, without any discrete masses. There are very few cases of this condition reported in the literature so far. In this report, we present a case of an infant presenting with hydrocephalus from VHCP and a brief review of the literature. Keywords: Choroid plexus, hydrocephalus, magnetic resonance imaging, villous hyperplasia, Author(s): V. Nitheesha Reddy [1]; Pararathu Viswanathan Sreekesh [2]; M. S. Gopalakrishnan [2]; Nichanametla Sravani [1]; Krishnan Nagarajan [1] Introduction Villous hyperplasia of choroid plexus (VHCP) is one of the [...]

Green synthesis nanoparticles have gained interest in recent years due to their environmental friendliness and sustainability. The current study focuses on the green synthesis of BMNP using spearmint leaves as a reducing and stabilizing agent. Because of their excellent catalytic characteristics, the synthesized bimetallic nanoparticles function as an effective catalyst in pyrido[2,3‐d:6,5‐d] pyrimidine derivatives. The synthesized nanoparticles are characterized using a variety of techniques, including FT‐IR analysis, SEM & EDX, XRD, and TEM. The FT‐IR study shows a reduction in functional groups in the leaf extract, confirming the metal nanoparticles' stretching. SEM and EDX studies confirm the shape and elemental composition of bimetallic nanoparticles. XRD investigation showed that the synthesized NPs are crystalline, and the Scherrer equation was used to calculate the average crystallite size. The calculated size was 49 nm. TEM analysis confirms the core‐shell nature of BMNPs. The synthesized nanoparticles acted as a superior catalyst in pyrido[2,3‐d:6,5‐d] dipyrimidines derivatives. in the synthetic procedure, BMNPs enhanced the catalytic activity and reduced the reaction time with more yield, Compared to the previous study. and the synthesized compound [1–5] has been confirmed by FT‐IR, 1H‐NMR, and 13C‐NMR analysis. and it has given better results in in‐vivo anti‐diabetic activity by Streptozotocin nicotinamide. This induced model adult male albino Wistar derivatives show significant fasting blood glucose levels when compared to metformin hydrochloride. and its evaluated molecular docking study, exhibit excellent CDDOCKER energy. [ABSTRACT FROM AUTHOR]

This present research work focuses on synthesizing Ag−Cu bimetallic nanoparticles utilizing an aqueous extract leaf of Excoecaria agallocha, employing a green synthesis route. The incorporation of silver (Ag) with copper (Cu) induces synergistic effects that enhance reaction kinetics and reduce the multicomponent reaction time. The catalysts synthesized through this environmentally friendly approach were thoroughly characterized using various analytical techniques, including HR‐TEM, XRD, SEM‐EDX, UV‐Vis Spectrophotometry, and FT‐IR. The UV‐visible spectrum displayed a peak at 257 nm, while the FT‐IR spectrum exhibited peaks at 574 cm−1, indicative of bimetallic peak reductions attributed to the influence of plant metabolites. HR‐TEM and XRD revealed the crystalline with (111), (200), (111), (200), and (220) plane values and shapes of BMNPs. Furthermore, the Ag−Cu bimetallic nanoparticles demonstrated outstanding catalytic performance with high product yield, along with notable reusability and recyclability and excellent antimicrobial activity when compared with commercial antibacterial chloramphenicol. [ABSTRACT FROM AUTHOR]

In the advent of precision agriculture, applying fertilizer based on soil testing is a crucial tool to prescribe nutrient levels for crops, to increase nutrient use efficiency and production. A field experiment was conducted in a farmer's field in the Dindigul district, Southern agro-climatic zone of Tamil Nadu to ascertain the effect of artificial soil fertility gradient method on soil fertility, green fodder production of sorghum (Sorghum bicolor (L.) Moench) (var. CO 30) and nutrient absorption. A fertility gradient technique has been investigated to produce fertilizer recommendations for location-specific in red soils (Alfisols, Typic Rhodustalf). The experimental field was separated into three equal strips: strip I, II, and III, which received applications of the three graded levels of ertilizer N0P0K0, N1P1K1, and N2P2K2, respectively. Urea, single super phosphate, and muriate of potash fertilizers, respectively, were used to apply NPK. As a gradient crop, S. bicolor was raised. The N1 level was set based on the general fertilizer recommendation of feed sorghum, while the P1 and K1 values were set based on the soil’s ability to fix 100 kg ha-1 of phosphorus and 100 kg ha-1 of potassium, respectively. Plant samples were taken at harvest time, and their NPK content and nutrient uptake were determined. With addition of graded doses of nitrogen, phosphorus and potassium fertilizer in Strip I, II & III increased the soil's available N, P & K status substantially in the order of Strip I-1 ) and NPK uptake were significantly impacted by the application of graded amounts of NPK fertilizers. [ABSTRACT FROM AUTHOR]