Publications by authors named "Mithra S"

Four dual-responsive probe molecules 1,5-bis(thiophene-2-carbaldehyde)carbohydrazone (R1), 1,5-bis(thiophene-2-carbaldehyde)thiocarbohydrazone (R2), 1,5-bis(indole-3-carbaldehyde)carbohydrazone (R3), and 1,5-bis(indole-3-carbaldehyde)thiocarbohydrazone (R4) were synthesized, characterized, and investigated for their sensing efficacy. The initial sensing behavior of the probes was tested by colorimetric signaling, followed by spectral and theoretical techniques, which supported the dual-sensing ability of the selected inorganic ions. The probes exhibited highly selective optical recognition for Cu/Fe cations and F/ClO anions compared to the tested cations and anions.

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Chitosan-based hydrogels have gained considerable attention in biomedical research due to their inherent biocompatibility, biodegradability, and non-toxicity. When combined with polyvinyl alcohol (PVA), the resulting hydrogels exhibit superior mechanical strength, elasticity, and swelling capacity, making them highly suitable for a range of applications, including wound healing, tissue engineering, and controlled drug delivery. In this study, we synthesized and characterized a novel PVA/gelatin/chitosan (PVA/G/C) hydrogel composite using a series of analytical techniques such as Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), scanning electron microscopy (SEM), and energy-dispersive X-ray analysis (EDAX).

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Introduction: This study aims to assess various models of psychological debriefing, their benefits, and the impact of their implementation on medical trainees & healthcare professionals' stress management skills, mental well-being, and clinical performance.

Methods: This review queried PubMed, ProQuest, Web of Science, and Google Scholar databases for articles regarding psychological debriefing in medical education published through May 2024. Included studies that assessed the utilization, implementation, and effectiveness of various psychological debriefing models in the hospital setting among nursing staff, medical trainees, and attending physicians.

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Four salicylidene-based dual-responsive chemosensors 1,5-bis(5-bromosalicylaldehyde)carbohydrazone (R1), 1,5-bis(5-bromosalicylaldehyde)thiocarbohydrazone (R2), 1,5-bis(3-ethoxysalicylaldehyde)carbohydrazone (R3) and 1,5-bis(3-ethoxysalicylaldehyde)thiocarbohydrazone (R4) were synthesized and characterized. The molecular structures of R1 and R3 were confirmed by single crystal X-ray diffraction technique, which crystallized in the orthorhombic and monoclinic 2/ space groups, respectively. The chemosensor molecules were investigated for their recognition properties against the selected cations (K, Ca, Mn, Co, Ni, Cu, Zn, Fe and Al) and anions (F, Cl, Br, I, HSO, HPO, ClO, N and NO) by colorimetry, absorption spectroscopy, fluorescence spectroscopy, H NMR spectroscopy and theoretical studies.

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Increasing industrial contamination necessitates development of sustainable water treatment solutions. Photocatalysis is a green technology utilizing light-activated materials (photocatalysts), which can degrade pollutants into harmless by-products. It is an emergent need to develop a photocatalyst that presents a significant advancement for sustainable water treatment and non-toxic to the environment.

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Article Synopsis
  • Generalized lichen planus (GLP) is a chronic skin condition affecting about 1% of the population and has limited research compared to other types like oral lichen planus; this study aimed to find effective steroid-sparing treatments.* -
  • The study involved 90 patients who were treated with systemic steroids and one of three therapies (azathioprine, dapsone, or narrowband UV-B) over 16 weeks, measuring itch severity and quality of life at baseline and 24 weeks.* -
  • Results showed that narrowband UV-B had the best overall improvement in itching and quality of life, with significant differences in treatment effectiveness compared to azathioprine and dapsone, and both
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Asian seabass, Lates calcarifer, is one of the most important fish species in aquaculture. An attempt was made to develop a primary cell culture from the spinal cord of Lates calcarifer by the enzymatic and mechanical dissociation method. The primary cell culture was sub-cultured for 20 times in Leibovitz's L-15 medium with 20% fetal bovine serum (FBS) and 0.

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Lates calcarifer (Bloch) is a potential candidate fish species for culture in marine and brackishwater. A continuous gill cell line was derived from L. calcarifer by the explant culture method and has been passaged for 132 times, in Leibovitz's L-15 medium containing 10% fetal bovine serum (FBS) at 28 °C.

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Chlorpyrifos (CPF) is an organophosphorus-based insecticide, which is known to pose a serious risk to aquatic animals. However, the mechanisms of CPF toxicity in animals still remain unclear. The present investigation aimed to compare the potential effects of CPF in zebrafish (Danio rerio) and its gill cell line (DrG cells).

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A permanent cell line, SPB (Snubnose pompano brain) was established from Trachinotus blochii by the explant culture method. It has been sub-cultured more than 75 passages and showed optimal growth at 28°C using L-15 medium supplemented with 15% to 20% FBS. The SPB cells were cryopreserved at different passage levels for various applications.

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Article Synopsis
  • Drought is a significant challenge for rice production worldwide, prompting research into effective methods to enhance resilience through seed priming with bio-elicitors.
  • This study explores a new approach using a mixture of micronutrients (iron and zinc) and the phytohormone methyl jasmonate to reduce the negative effects of drought on rice plants by measuring specific physiological and biochemical responses.
  • Results showed that the seed priming led to increased levels of carotenoids, abscisic acid, proline, and the activity of various antioxidant enzymes in drought-tolerant and sensitive rice genotypes, highlighting the potential of this technique in modern agriculture.
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Background: The impact of the severe acute respiratory syndrome-coronavirus-2 (SARS-CoV-2) pandemic on expectant mother and their babies extends to many aspects of life. Necrotizing enterocolitis (NEC) has been recognized as a life-threatening gastrointestinal inflammatory process in neonates that has high rates of morbidity and mortality.

Objective: To investigate factors associated with NEC in hospitalized neonates whose mothers were SARS-CoV-2-positive and their relationship to mortality.

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This study reports the occurrence of cyprinid herpesvirus 3 (CyHV-3) in koi carp (Cyprinus carpio koi) for the first time in India. The koi carp, with clinical signs of ulcer with haemorrhage on body surface, necrosis of fin and discolouration of gill associated with huge mortality, were observed in aquarium shops, rearing tanks and grow-out ponds located in Chennai, India. The PCR assay carried out on infected fish samples using different primer sets specific to CyHV-3 confirmed its presence in the infected fish.

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Rice is an important staple food grain consumed by most of the population around the world. With climate and environmental changes, rice has undergone a tremendous stress state which has impacted crop production and productivity. Plant growth hormones are essential component that controls the overall outcome of the growth and development of the plant.

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Introduction: Cholangiocarcinoma (CCA) are sub-divided into intrahepatic (iCCA) or extrahepatic (eCCA). eCCA are further subdivided into perihilar (pCCA) and distal (dCCA). Current and previous versions of the WHO International Coding of Disease and Oncology classifications (ICD) have separate topography codes for iCCA and eCCA, but none for pCCA.

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Background: The development and rapid uptake of immune checkpoint inhibitors (CPI) has changed the outlook for patients with cancer. However, CPIs have different adverse event (AE) profiles to other systemic therapies, and prompt AE management is essential to assure optimal outcomes. In order to understand what and when adverse events are experienced, reported and managed during CPI treatment, a mixed methods study was conducted, including a case note review of patients who were receiving immunotherapy and semi-structured interviews with patients to understand their experience, management and reporting of AEs after receiving immune CPI treatment.

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Understanding the molecular mechanism underlying photoperiod sensitivity will play a crucial role in extending the cropping area of a photoperiod sensitive major grain legume of India and Africa. In flowering plants, (FT) gene is involved in the production of florigen molecule which is essential for induction of flowering, influenced largely by the duration of photoperiod. To understand the structural and regulatory nature of this gene, a genome-wide survey was carried out, revealing the presence of 13 PEBP (FT) family genes in .

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Clusterbean ( L.), also known as guar, belongs to the family Leguminosae, and is an annual herbaceous legume. Guar is the main source of galactomannan for gas mining industries.

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Background: Increased water and labour scarcity in major rice growing areas warrants a shift towards direct seeded rice cultivation under which management of weeds is a major issue. Use of broad spectrum non-selective herbicides is an efficient means to manage weeds. Availability of rice genotypes with complete tolerance against broad-spectrum non-selective herbicides is a pre-requisite for advocating use of such herbicides.

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Background: Drought stress tolerance for crop improvement is an important goal worldwide. Drought is a complex trait, and it is vital to understand the complex physiological, biochemical, and molecular mechanisms of drought tolerance to tackle it effectively. Osmotic adjustment, oxidative stress management (OSM), and cell membrane stability (CMS) are major components of cellular tolerance under drought stress.

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Water stress is one of the most severe constraints to crop productivity. Plants display a variety of physiological and biochemical responses both at the cellular and whole organism level upon sensing water stress. Leaf rolling, stomatal closure, deeper root penetration, higher relative water content (RWC) and better osmotic adjustment are some of the mechanisms that plants employ to overcome water stress.

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Salinity tolerance in rice is highly desirable to sustain production in areas rendered saline due to various reasons. It is a complex quantitative trait having different components, which can be dissected effectively by genome-wide association study (GWAS). Here, we implemented GWAS to identify loci controlling salinity tolerance in rice.

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