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Congenital melanocytic nevi, as the name suggests, are present since birth. They are called giant congenital melanocytic nevus (GCMN) when the size exceeds >20 cm in diameter. Due to its unsightly appearance, there is major psychosocial impact on the patient and the family. GCMN in due course of time may give rise to malignant melanoma not only in the GCMN but also in the leptomeninges. Clinical variants of GCMN include nevus spilus type, which is a rare variant. In addition to that with time, GCMN may continue to be affected with benign nodules. We present a rare case of a nevus spilus type of GCMN with classic proliferative nodules associated with intraparenchymal melanosis in brain, leading to seizures.

Banana is a staple food for millions of individuals, especially in regions with tropical and subtropical climates. Nevertheless, the cultivation of banana is under significant threat from Fusarium wilt, a harmful biotic stress transmitted through the soil and caused by Fusarium oxysporum f. sp. cubense (Foc). This disease has the potential to devastate and infect almost all the varieties of bananas, especially with the emergence of Foc race 4. This study investigates the possibility of Streptomyces rochei AMBEAROOT2, isolated from the banana, used as a biocontrol agent against Fusarium wilt in banana. The molecular characterization of ten Foc isolates identified Fusarium oxysporum f. sp. cubense TFOC6 as the most virulent and confirmed as race 4. S. rochei AMBEAROOT2 exhibited significant mycelial inhibition (62.3%) of F. oxysporum f. sp. cubense TFOC6 and plant growth-promoting characteristics, including indole-3-acetic acid, biofilm formation, and exopolysaccharide synthesis. Gas Chromatography-Mass Spectroscopy analysis identified metabolites produced by S. rochei AMBEAROOT2, with molecular docking investigations revealed strong binding affinities of compounds viz., 3-phenyl-3-p-tolyl-1-(2,4,6-trimethyl-phenyl)-propane-1-one, 19-acetoxy-4,4-dimethyl-, oxime, Androst-5-en-3-one, and Pyrano [4,3] benzopyran-1,9-dione to key virulence proteins (Catalase-peroxidase, Kynureninase, Penta functional AROM polypeptide, and Ribose phosphate pyrophosphokinase) of Foc. In greenhouse conditions, micro-propagated banana plantlets treated with S. rochei AMBEAROOT2 demonstrated enhanced growth, improved physiological traits, and higher levels of defense enzymes compared to those inoculated with F. oxysporum f. sp. cubense TFOC6 alone. It also induced systemic resistance and a 100% decrease in the incidence of Fusarium wilt. In conclusion, S. rochei AMBEAROOT2 showed potential antifungal activities, promoted plant growth, and could be used to manage wilt disease in banana after field evaluation.

Bullous pemphigoid (BP) is an autoimmune condition characterized by tense subepidermal blisters commonly seen in old age. Vitiligo is another autoimmune disease associated with loss of melanocytes. Very few cases of coexistence of vitiligo and BP are reported. A split skin graft (SSG) is a surgical option for stable vitiligo. BP over the SSG is a rare occurrence. We present the case of an elderly individual who developed BP at the site of SSG for vitiligo. Postmanagement of BP the lesion healed with recurrence of vitiligo patch at the same site. This case highlights that surgical intervention without ascertaining the stability of the disease activity may not only preclude the patient to the development of the primary disease but also lead to development of other autoimmune illnesses at the surgical site due to unmasking of the epitope to already circulating antibodies.

The Andaman and Nicobar Islands are rimmed by discontinuous fringing reef that is in general wider on western margin vs the eastern margin. This study characterizes the facies updip from the modern fringing reefs to the present shoreline of south Andaman and Swaraj Dweep, and describes in detail the coral terraces/carpets within and above the inter-tidal zone representing the Holocene Fringing reef. Field studies, satellite, and drone datasets have been utilized to map different facies, that include: coralgal boundstone, biodetrital-grainstone, beachrock, and coralgal rudstone. Multiple exposed microatolls as well as coral terraces (coral carpets) of Acropora and Porites (dated 8.7-8.4 ka BP) have been identified within the intertidal zone (Radhanagar Beach, Swaraj Dweep) indicating that Holocene fringing reef have down-stepped offshore to the current location of modern fringing reefs owing to either tectonics or eustasy. The eustatic sea-level fluctuations are relatively well established for the Holocene and we compute the tectonic uplift rates utilizing the stream-power-incision and linear-inversion model. A tectonic uplift rate of ~ 0.05 mm/yr (for Swaraj Dweep) during the past 100 ka is estimated, while taking into account a wide range of erodibility indexes and response time intervals. It is identified that the computed uplift rate is an amalgamation of the coseismic deformation along with the interseismic and aseismic surface deformation. Thus, not all exposed coral terraces/microatolls are exposed due to coseismic deformation (for example uplift in parts of Andaman due to earthquake in 2004). The average long-term uplift rates are a magnitude lower than the eustatic sea-level fall rates during Holocene, thus, we suggest that most of the Holocene fringing reefs are exposed due to eustatic sea-level fall and down-stepped to the current location of the modern fringing reefs. This would entail that the eustatic sea-level change rates would play a significant role in determining future of the modern fringing reef (catch-up vs keep up vs give up), and the coastal morphology of south Andaman and Swaraj Dweep, with implications for coastal inundation and stability in the scenario of climate change.

The green oak leaf roller moth, Tortrix viridana, is one of the main defoliators of deciduous oaks in the Mediterranean region. Although aerial applications of Btk-based insecticides represent the most effective method to control the larval populations of this pest at a large spatial scale, the optimal time window for sprayings has not yet been defined. Accordingly, experimental trials were conducted in a Quercus pubescens forest district in Sardinia (Italy) involving both large-scale aerial treatments and small-scale applications from the ground. The aim of our work was to study how different larval development stages and/or sprouting phenological phases of the host trees affect Btk efficacy. Aerial sprayings were conducted in 2003 and 2004 in two different areas of about 300 ha, selected according to altitude and exposure to simulate three different application timings against different larval instars and sprouting phenological phases. From-the-ground applications were carried out in 2021 in a Q. pubescens forest stand by applying Btk-based insecticides at different timings, and the overall Q. pubescens phenological stage and the distribution of T. viridana larval development stages were assessed accordingly. The effectiveness of Btk applications was evaluated by estimating larval mortality 7, and 14 days after aerial applications, and 7, 14 and 21 days after ground applications. Defoliation due to T. viridana was also evaluated at the end of larval development in all years. In both 2003 and 2004, the average larval mortality due to Btk exceeded 80 % two weeks after aerial applications across all application timings. Damage caused by T. viridana varied with Btk application timing, with the later applications showing a higher defoliation than other timings. In ground application experiments, larval mortality significantly increased when Btk was sprayed against a larval population primarily composed of IV instars, which were feeding on sprouts with leaves that were spread out and had not fully developed internodes, thus resulting in a significative reduction of insect damage. Our findings indicate that, in accordance with the strict synchrony between the larval development and the oak flushing, the optimal timing for Btk application against T. viridana can be defined based on the bud burst phenological phase. In particular, the prevalence of sprout with expanding leaf surface allowing insecticidal droplet interception and the simultaneous presence of susceptible larval instars (within the IV), resulted in an increased treatment efficacy.

Thermal maturity assessments of hydrocarbon-generation potential and thermal history rarely consider how upper-plate structures developing during subduction influence the trajectories of accreted sediments. Our thermomechanical models of subduction support that thrusts evolving under variable sedimentation rates and décollement strengths fundamentally influence the trajectory, temperature, and thermal maturity of accreting sediments. This is notably true for the frontal thrust, which pervasively partitions sediments along a low- and a high-maturity path. Our findings imply that interpretations of the distribution of thermal maturity cannot be detached from accounts of the length and frequency of thrusts and their controlling factors. Our approach takes these factors into consideration and provides a robust uncertainty estimate of maximum exposure temperatures as a function of vitrinite reflectance and burial depth. As a result, our models reduce former inconsistencies between predicted and factual thermal maturity distributions in accretionary wedges.

Introduction: Chronic Low Back Pain (CLBP) is a disabling musculoskeletal condition with a high prevalence in developing and developed countries. There are many treatment modalities but none of them provides a satisfactory and consistent cure. Recently focus has shifted to neuromodulation to cure chronic pains. The U.S. Food and Drug Administration (FDA) approved the use of Repetitive TMS (rTMS) in the management of Pain in 2013. Since then, centres across the world have been using Transcranial Magnetic Stimulation (TMS) as a noninvasive modality for the treatment of various pain conditions. rTMS is a variation of TMS where stimulation is provided in sessions to create long-term excitation in the brain cortex. Evidence on the effectiveness of rTMS for CLBP is scarce due to limited rigorous clinical trials. This study is the first of its kind undertaken in India to critically analyze the role of rTMS in the treatment of CLBP. Materials & Methods: In this single institutional prospective, single-blind study, we enrolled 40 patients of CLBP sharing similar clinical profiles. They were divided into a test group and a sham group. In the test group patients were given rTMS in addition to conventional treatment while in the sham group, patients were taken through the procedure of rTMS without actually being administered it. A figure-of-eight-shaped coil was used focusing on the Left M1 area and Dorsolateral prefrontal cortex to administer the rTMS by a trained physician. Visual Analogue Scores (VAS) were noted before and after the procedure. Each patient was continuously monitored during the procedure for any side effects. Subsequently, they were interviewed and followed up for 6 months. At the end of 6 months, data was compiled and conclusions were drawn. Result: In our study, we found that 90 per cent of patients in the test group reported a reduction in VAS score by 30 per cent reduction while the remaining had a 20 per cent reduction in pain scores. 90 per cent of subjects in the sham group reported a marginal improvement in VAS score which can be attributed to the placebo effect. Most patients in the test group reported an improvement in quality of life at the end of six months. None of the patients suffered any untoward side effects during or after the procedure. Conclusion: Based on our study we conclude that rTMS is a safe procedure and it can be used as a modality in treating CLBP with satisfactory outcomes. Although the sample size was small, it is the first study of its kind undertaken in India to evaluate the role of rTMS-based neuromodulation in treating this chronic disabling condition. However, to be accepted as a standard of care for CLBP it will require further multi-institutional robust clinical trials with long-term follow-up.

Objective: Understanding patients' perspectives is essential for treatment planning and assessing healthcare efficacy. This study explored the influential factors in root canal treatment (RCT) on patient satisfaction.Methods: This prospective study involved 390 eligible patients who underwent RCT at the Department of Conservative Dentistry and Endodontics, B. P. Koirala Institute of Health Sciences, Dharan, Nepal. We collected data by assessing endodontic factors before treatment and using a post-treatment semantic differential scale questionnaire. Patients’ satisfaction was measured using a visual analogue scale (VAS) from 0 (least satisfaction) to 10 (highest satisfaction possible). Mann-Whitney U-test and Kruskal-Wallis test were employed for data analysis, and P-value

Background: Fever is defined as a rectal temperature of 100.4oF or more. It is a physiologic response characterized by an elevation of body temperature above normal variation. Fever is one of the common causes of medical consultation in children, responsible for 15%–25% of consultations in Pediatrics practice. Children with prolonged fever worry their parents and are a diagnostic challenge to pediatricians. Persistence of fever raises clinical queries towards diagnosis, especially in patients without identifiable focus. Children with a temperature of more than 38°C (100.4°F) recorded by a healthcare professional without any determined reason after at least 8 days of evaluation should be classified as having a “fever of unknown origin”. Most fevers with unknown causes usually have atypical presentations of common illnesses. Case Presentation: We reviewed the case records of 9 children admitted to our pediatric ward with prolonged fever episodes from December 2021 to October 2022. They were diagnostic challenges for clinicians. In our cases, 2 children had scrub typhus, 1 was diagnosed with acute lymphoblastic leukemia, and 1 had multidrug-resistant typhoid fever. However, 2 patients remained with a fever of unknown origin. Three children were found to have coinfections and diagnosed with enteric fever with other coinfections like dengue, leptospirosis, and urinary tract infection. Cases 1, 2, and 9 had persistent fever despite appropriate antibiotics therapy based on sensitivity patterns, hence a significant diagnosis challenge. Cases 3 and 6 had initial diagnostic deviations due to their atypical presentations, and both cases were diagnosed as scrub typhus. After extensive evaluation, case 4 was diagnosed as malignancy (acute lymphoblastic leukemia). Cases 5 and 7 posed a diagnostic challenge: The causes were not found after extensive evaluation, and there was persistent fever after 10 days of admission. Hence, they were diagnosed as “fever of unknown origin”. Conclusions: A complete history and detailed examination are essential in evaluating pediatric illnesses. We have found that there might be deviators during disease evolution. We should not settle with a single diagnosis until a good clinical response is achieved and also consider alternative diagnoses or coinfections. Common causes of prolonged fever should be ruled out first. Coinfections should also be considered if there is no clinical response to treatment in a patient. A practical, systematic, and stepwise approach can be helpful with the assessment and management of prolonged fever in the pediatric age group.

Introduction: Flipped classroom is an element of blended learning, integrating both face-to-face learning in the class through group discussion and distance learning outside the class by watching video lessons and online collaboration. The objective of the study was to introduce and assess the effectiveness of flipped classroom in teaching and learning of Conservative Dentistry and Endodontics and to understand the perspective of students about the same. Methods: Third year undergraduate dental students were randomly divided into two groups: structured interactive session group and flipped classroom group. Structured interactive session group had their class taken in the traditional manner while the flipped classroom group was given power point presentation and videos beforehand so that students came to class being prepared. The in class time was utilized for group discussions and peer exercises. Same set of questions including multiple choice questions (MCQs) and problem based questions (PBQs) validated by the faculties involved in the research was used for assessment. A questionnaire was then provided to students regarding their perception of flipped classroom method. Results: Among the 41 students, 19 students were in structured interactive session group and 22 were in flipped classroom group. The mean MCQ and PBQ score in structured interactive session group was 69.47 and 59.39 respectively whereas it was 73.17 and 66.55 respectively in flipped classroom group. Conclusions: The performance of flipped classroom group was better in both MCQs and PBQs. Students preferred flipped classroom method and were ready to accept it as their teaching learning modality.

Hygienic behavior (HB) emerges as a pivotal trait, impacting colony resistance to diseases. This study aimed to understand the behavioral traits of Apis cerana indica colonies, with a focus on HB and other key characteristics crucial for colony health, and to screen and identify colonies with superior hygienic behavior and better performance to combat prevailing diseases and pests. This research spans a comprehensive field analysis with different seasons and locations, encompassing the distinct environmental and management factors that influence honey bee behavior. The inclusion of A. cerana indica colonies from various locations provides a novel perspective, offering valuable insights regarding the hygienic behavior of A. cerana indica. Several statistical analyses, including descriptive statistics, principal component analysis (PCA), and Aligned Rank Transformation-Analysis of Variance (ART-ANOVA) for repeated measures, shed light on the distribution of hive metrics, emphasizing the significance of considering seasonality and location-specific factors. PCA highlights unique characteristics in Tirupur and Coimbatore colonies, while correlation analyses uncover relationships among HB, honey, pollen, brood area, and adult population. Moreover, the study’s nuanced findings gave the status of hygienic behavior of A. cerana indica colonies and identified colonies with better colony performance, which will be useful for future breeding programs with A. cerana indica.

Preparation of myrtle liqueur through ethanol-based extraction is a widely employed methodology. Nevertheless, optimization of existing processes is possible, especially through a modern statistical multivariate approach. In this context, a Design of Experiments (DoE) approach was used to quantitatively assess for the first time the effect of the time, ethanol concentration, temperature, and the ratio between the Myrtus communis berries’ weight and the extractant volume (v/w) on the amounts of anthocyanins, volatile compounds and dry residues in the liqueur. The kinetic profile relative to the volatile fraction variation during the process was described by gas chromatography (GC), while spectrophotometric analysis allowed quantification of the total anthocyanins and total polyphenols. Multiple response analysis showed that the maximum efficiencies in terms of the considered parameters (desirability function) were reached by setting the temperature to 25 °C and the ethanol percentage to 96% after 20 days of processing. Some hints as to the chemical instability and not negligible sensitivity of anthocyanins in relation to the experimental conditions for longer extraction times were also observed. The statistical model represents a novel tool for industrial production of myrtle liqueur.

ABSTRACT Objective: This study aimed to assess the frequency with which orthodontic patients decided to shift to another type of orthodontic appliance, among conventional metal brackets, ceramic brackets, lingual brackets and clear aligner, based on their personal experiences of pain, ulcers, bad breath, hygiene issues and social difficulties. Material and Methods: This study comprises of patients seeking orthodontic treatment. The sample (n = 500; age group = 19-25 years) was divided equally into four groups based on the treatment modality: conventional metal brackets, ceramic brackets, lingual brackets and clear aligner. Patients rated the questionnaire using a visual analogue scale, to assess variables (such as pain, ulcer etc) that impact various treatment modalities. Subsequently, patients from all groups provided feedback regarding their treatment experiences, and expressed their preference for an alternative modality. Intergroup comparison among the four groups was done using one-way analysis of variance with Tukey’s HSD post-hoc test (p ≤ 0.05). Results: Patients who received lingual brackets reported higher levels of pain and ulceration, as compared to those who received clear aligners. All four groups showed statistically significant differences for ulcers during treatment (p ≤ 0.05). Of the 125 patients who received conventional metal brackets, 28% expressed a preference for clear aligner therapy, while 20% preferred ceramic brackets. In the lingual group, 56% of 125 patients preferred clear aligner therapy, and 8% preferred ceramic brackets to complete their treatment. In the ceramic group, 83% did not want to switch, whereas 17% desired to switch to clear aligner, while in aligner group no patient desired to switch. Conclusions: A higher percentage of patients from lingual brackets group chose to shift to clear aligners, followed by conventional metal brackets group and by ceramic brackets group, in this descending order. The clear aligner group demonstrated fewer issues than the other treatment modalities.

Abstract Researchers are investigating innovative composite materials for renewable energy and energy storage systems. The major goals of this studies are i) to develop a low‐cost and stable trimetallic oxide catalyst and ii) to change the electrical environment of the active sites through site‐selective Mo substitution. The effect of Mo on NiCoMoO4 is elucidated using both in situ X‐ray absorption spectroscopy and X‐ray diffraction analysis. Also, density functional theory strategies show that NiCoMoO4 has extraordinary catalytic redox activity because of the high adsorption energy of the Mo atom on the active crystal plane. Further, it is demonstrated that hierarchical nanoflower structures of NiCoMoO4 on reduced graphene oxide can be employed as a powerful bifunctional electrocatalyst for oxygen reduction/evolution reactions in alkaline solutions, providing a small overpotential difference of 0.75 V. Also, Zn–air batteries based on the developed bifunctional electrocatalyst exhibit outstanding cycling stability and a high‐power density of 125.1 mW cm−2. This work encourages the use of Zn–air batteries in practical applications and provides an interesting concept for designing a bifunctional electrocatalyst.

Objectives: India introduced BBV152/Covaxin and AZD1222/Covishield vaccines in January 2021. We estimated the effectiveness of these vaccines against severe COVID-19 among individuals aged ≥45 years. Methods: We did a multi-centric, hospital-based, case-control study between May and July 2021. Cases were severe COVID-19 patients, and controls were COVID-19 negative individuals from 11 hospitals. Vaccine effectiveness (VE) was estimated for complete (2 doses ≥ 14 days) and partial (1 dose ≥ 21 days) vaccination; interval between two vaccine doses and vaccination against the Delta variant. We used the random effects logistic regression model to calculate the adjusted odds ratios (aOR) with a 95% confidence interval (CI) after adjusting for relevant known confounders. Results: We enrolled 1143 cases and 2541 control patients. The VE of complete vaccination was 85% (95% CI: 79-89%) with AZD1222/Covishield and 71% (95% CI: 57-81%) with BBV152/Covaxin. The VE was highest for 6-8 weeks between two doses of AZD1222/Covishield (94%, 95% CI: 86-97%) and BBV152/Covaxin (93%, 95% CI: 34-99%). The VE estimates were similar against the Delta strain and sub-lineages. Conclusion: BBV152/Covaxin and AZD1222/Covishield were effective against severe COVID-19 among the Indian population during the period of dominance of the highly transmissible Delta variant in the second wave of the pandemic. An escalation of two-dose coverage with COVID-19 vaccines is critical to reduce severe COVID-19 and further mitigate the pandemic in the country.

Introduction: There has been adequate evidence that children are less likely to contract the Coronavirus Disease-2019 (COVID-19) infection and less likely to experience a deadly course of the disease in the paediatric group. The majority of the time, they exhibit moderate respiratory symptoms, like fever, dry cough and exhaustion. They were all free of COVID-19 pneumonia. Aim: To compare the clinical features and short-term outcomes of COVID-19 in children during May 2020 to April 2022. Materials and Methods: The present analytical observational study was conducted in the Department of Paediatrics, Chettinad Hospital, Chennai, Tamil Nadu, India, from March 2020 to March 2022. The study population included Reverse Transcription-Polymerase Chain Reaction (RT-PCR) positive COVID-19 children between age groups of one month and 18 years age. A sample size of 102, 90 and 98 were included from first, second and third wave, respectively. Kruskal-Wallis test and Analysis of Variance (ANOVA) test were used were used for statistical analysis. Results: In the study population, the mean age in the wave 1, wave 2 and wave 3 was 9.1±5.25 years, 9.3±4.99 years and 9.2±5.12 years, respectively. Males were more affected in all the phases than females. The most common symptoms in all the three waves were cough, myalgia and fever. Fever was the predominant symptom reported in all three waves (74.8% in wave 1, 80.6% in wave 2 and 75% in wave 3). Between the COVID-19 waves, baseline investigations such as Alanine Transaminase (ALT) and Aspartate Transaminase (AST) (p-value=0.001, 0.02) showed significant differences. C-reactive Protein (CRP) was non reactive in (81.55%) in wave 1, (85.07%) in wave 2 and (65.3%) in wave 3. (p-value=0.029). Conclusion: The present study results conclude that the presenting features of COVID-19 in children were mild, and the outcome was good. The first, second and third waves had considerable differences in clinical findings and short-term outcomes among COVID-19-affected children.

In this work, the novel CuTa2O6 phase was successfully synthesized by the hydrothermal and followed by the calcination process. The X-ray diffraction pattern confirms the formation of different phases. At a low temperature, CuTa2O6 exhibits the orthorhombic phase, whereas, at a higher temperature, it underwent a phase transition to a cubic crystal structure. X-ray photoelectron spectroscopic results suggest the presence of all the elements (Cu, Ta, and O). The optical studies were carried out using a UV-Vis DRS spectrophotometer. FESEM images confirm the spherical-shaped particles for the sample annealed at a high temperature. The local atomic and electronic structures around Cu and the contribution of the Cu oxidation state in the CuTa2O6 system were determined by X-ray absorption spectroscopy. To investigate the effective usage of CuTa2O6 in treating wastewater, its photocatalytic activity was investigated by evaluating its use in the photodegradation of MO dye under visible light irradiation. Moreover, the prepared CuTa2O6 photocatalyst exhibits significant photocatalytic activity in the degradation of MO dye and shows excellent stability; it is therefore a promising material for potential use in a practical photocatalyst. The CuTa2O6 photocatalyst suggests an alternative avenue of research into effective photo-catalysts for solar hydrogen water splitting.

Cutaneous Larva Migrans (CLM) is caused by penetration of skin by the third stage larvae of hookworms, and most commonly caused by Ancylostoma braziliense (dog hookworm). Humans act as dead-end hosts for this parasite. This series reports six cases of creeping eruptions that occurred on buttocks and back in four infants and on the feet in two toddlers. All the cases clustered after the rainy seasons in the months of December and January. Diagnosis was established based on history and clinical examination. All six children were administered five days of albendazole and they recovered completely. This series is presented to make readers aware of the underestimated public health problem in infants with distinctive skin eruptions of larva migrans occurring in the tropical subcontinent of Indian coastal areas. This is clinically relevant as treatment of this condition is very simple and cost-effective.

Mushrooms are the spore bearings fruiting bodies that have been used by human being since ancient times for good health. Mushroom is the choicest food of nutrition because it provides important nutrients like proteins, selenium, potassium, riboflavin, Niacin, Vitamin D and more. Oyster mushroom are known for their health benefits. Oyster mushroom protect the heart against cardiovascular diseases, helps in lowering the blood pressure, regulate the cholesterol level, improve immune health and have anti cancer, anti inflammatory and other properties. , Cultivation of oyster mushroom on waste straw not only solve the pollution problem but also improves the economic conditions of farmers.

Over the past 130 years, Fischer-Speier esterification has been established as the benchmark method for synthesizing esters from organic acids and alcohols. The reaction's versatility, arising from the vast combinations of starting materials and the numerous catalytic alternatives to the traditional H2SO4, has maintained its relevance, with a steady flow of publications addressing new developments. This review highlights the most significant contributions to Fischer-Speier esterification over the past five years, with a particular emphasis on mechanistic advancements and innovative catalytic systems. Both homogeneous and heterogeneous catalytic approaches are discussed, including novel catalysts leveraging hydrogen-bonding interactions and systems offering fresh insights into specific reaction mechanisms and atypical methodologies. Some of these catalytic systems, as ionic liquids or sulfonated heterogeneous catalytic precursors, reached excellent yields (>90%), e.g., in the synthesis of fatty acids methyl esters. Also, classic catalysts such as H2SO4 and para-toluen sulfonic acid were optimized for quantitative conversions (e.g., in the esterification of trans-cinnamic acid with methanol). A consistent number of catalysts was studied with model substrates (as benzoic acid in combination with methanol, ethanol, and ethylene glycol), and new activation pathways were presented. [ABSTRACT FROM AUTHOR]

The Andaman and Nicobar Islands are rimmed by discontinuous fringing reef that is in general wider on western margin vs the eastern margin. This study characterizes the facies updip from the modern fringing reefs to the present shoreline of south Andaman and Swaraj Dweep, and describes in detail the coral terraces/carpets within and above the inter-tidal zone representing the Holocene Fringing reef. Field studies, satellite, and drone datasets have been utilized to map different facies, that include: coralgal boundstone, biodetrital-grainstone, beachrock, and coralgal rudstone. Multiple exposed microatolls as well as coral terraces (coral carpets) of Acropora and Porites (dated 8.7-8.4 ka BP) have been identified within the intertidal zone (Radhanagar Beach, Swaraj Dweep) indicating that Holocene fringing reef have down-stepped offshore to the current location of modern fringing reefs owing to either tectonics or eustasy. The eustatic sea-level fluctuations are relatively well established for the Holocene and we compute the tectonic uplift rates utilizing the stream-power-incision and linear-inversion model. A tectonic uplift rate of ~ 0.05 mm/yr (for Swaraj Dweep) during the past 100 ka is estimated, while taking into account a wide range of erodibility indexes and response time intervals. It is identified that the computed uplift rate is an amalgamation of the coseismic deformation along with the interseismic and aseismic surface deformation. Thus, not all exposed coral terraces/microatolls are exposed due to coseismic deformation (for example uplift in parts of Andaman due to earthquake in 2004). The average long-term uplift rates are a magnitude lower than the eustatic sea-level fall rates during Holocene, thus, we suggest that most of the Holocene fringing reefs are exposed due to eustatic sea-level fall and down-stepped to the current location of the modern fringing reefs. This would entail that the eustatic sea-level change rates would play a significant role in determining future of the modern fringing reef (catch-up vs keep up vs give up), and the coastal morphology of south Andaman and Swaraj Dweep, with implications for coastal inundation and stability in the scenario of climate change. [ABSTRACT FROM AUTHOR]

The development of new materials for the controlled release of molecules represents a topic of primary importance in medicine, as well as in food science. In recent years, eutectic solvents have been applied as releasing media due to their improved capacity to interact with specific molecules, offering a broad range of tunability. Nevertheless, their application in essential oil dissolution are rare and more data are needed to develop new generations of effective systems. Herein, three eutectic systems, respectively, composed of choline chloride and ethylene glycol (1:2 molar ratio), methyltriphenylphosphonium bromide and ethylene glycol (molar ratio 1:5), and choline chloride and glycerol (molar ratio 1:1.5) were tested as materials for the controlled release of an essential oil derived from Citrus lemon leaves. Through static headspace fractionation, followed by gas chromatographic analysis, the performances of the three systems were assessed. The specific composition of DESs was pivotal in determining the releasing polar molecules as aldehydes and alcohols. A sustainability ranking based on the EcoScale tool highlighted the superior characteristics of the choline chloride–glycerol DES. [ABSTRACT FROM AUTHOR]

Congenital melanocytic nevi, as the name suggests, are present since birth. They are called giant congenital melanocytic nevus (GCMN) when the size exceeds >20 cm in diameter. Due to its unsightly appearance, there is major psychosocial impact on the patient and the family. GCMN in due course of time may give rise to malignant melanoma not only in the GCMN but also in the leptomeninges. Clinical variants of GCMN include nevus spilus type, which is a rare variant. In addition to that with time, GCMN may continue to be affected with benign nodules. We present a rare case of a nevus spilus type of GCMN with classic proliferative nodules associated with intraparenchymal melanosis in brain, leading to seizures. [ABSTRACT FROM AUTHOR]

Aim:Exclusive breastfeeding (EBF) is very important for the growth and development of the baby. The purpose of this study was to identify the prevalence of EBF practices, to assess the factors associated with those practices, and to find the barriers to EBF practices in the rural community.Materials and Methods:A cross-sectional study based on systematic questioning was carried out involving 252 mothers with children between the ages of 6 and 9 months in the southern Chennai community and the nearby districts of Chengalpattu and Kanchipuram from October 2018 to October 2019. Multiple logistic regression was used to determine factors associated with EBF.Results:Seventy percent (184/252) of mothers following EBF habits had a child older than six months. About 58% of mothers started breastfeeding within one hour of birth, and 32.53% reported colostrum feeding. An apparent shortage of milk (58.82%) was a common problem reported by the mothers leading to EBF discontinuation. Children of working mothers [Odds ratio (OR) 3.32; 95% confidence interval (CI) 1.13, 9.70], urban dwellers (OR 6.67; 95% CI 1.12, 39.66) and children in urban areas (OR 12.47; 95% CI 2.05, 75.90) were less likely to be breastfed exclusively as indicated in the multivariate regression analysis. No relationships were found between the child's gender, method of childbirth, medical advice, or nutritional management before meals and EBF.Conclusion:Working mothers and those living in urban areas were at greater risk of non-compliance with EBF. The national impact of urban sprawl and the impact on EBF activities should be studied in depth.