Publications by authors named "Ramasamy S"

Native banana starch (NS) has few limitations, such as poor solubility, low resistance to shear, temperature, and inconsistent retrogradation. This study investigates the effects of mono (α-amylase, pullulunase) and sequential enzymatic modifications of NS along with the application of ultrasound to enhance its functional attributes. Starch modified with α-amylase alone and along with ultrasound resulted the lowest amylose (20.

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Bloodstream bacterial infections, a major health concern due to rising sepsis rates, require prompt, cost-effective diagnostics. Conventional methods, like CO-based transduction, face challenges such as volatile metabolites, delayed gas-phase signaling, and the need for additional instruments, whereas electrochemical sensors provide rapid, sensitive, and efficient real-time detection. In this study, we developed a bioreceptor-free Prussian blue (PB) sensor platform for real-time bacterial growth monitoring in blood culture.

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Introduction: Fertility decision-making is an important factor affecting the Total Fertility Rate. Good communication between partners encourages shared decision-making and equal participation. Women's decision-making plays an important role in determining their reproductive health and fertility behaviour.

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Dietary fiber (DF) is an indigestible carbohydrate in plant foods that supports various physiological functions. This study aimed to extract the soluble and insoluble dietary fiber (DF) from the curry leaves and investigate their physicochemical properties as well as their functional role in the homeostasis of the gut microbiome. The study observed that insoluble-DF (IDF) yielded higher amounts than soluble-DF (SDF) across alkali, acid, and water extraction methods.

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Unlabelled: Drug repurposing is necessary to accelerate drug discovery and meet the drug needs. This study investigated the possibility of using fluvoxamine to inhibit the cellular metabolizing enzyme NUDT5 in breast cancer. Computational and experimental techniques were used to evaluate the structural flexibility, binding stability, and chemical reactivity of the drugs.

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  • In April 2024, ten cats in South Dakota died from respiratory and neurological symptoms, leading to the discovery of an H5N1 strain closely related to cattle samples from the same area.
  • Genetic analysis revealed unique mutations in the cat-infected H5N1 virus that may enhance its infectivity and ability to evade the immune system, suggesting adaptation to the feline host.
  • The presence of viral antigens in multiple organs, particularly the brain, along with receptor co-expression, indicates that cats could potentially act as reservoirs for the mixing of avian and mammalian flu viruses.
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Background: Tuberculosis (TB) poses a significant social and economic burden to households of persons with TB (PwTB). Despite free diagnosis and care under the National TB Elimination Programme (NTEP), individuals often experience significant out-of-pocket expenditure and lost productivity, causing financial catastrophe. We estimated the costs incurred by the PwTB during TB care and identified the factors associated with the costs.

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Residual blood specimens collected at health facilities may be a source of samples for serosurveys of adults, a population often neglected in community-based serosurveys. Anonymized residual blood specimens were collected from individuals 15 - 49 years of age attending two sub-district hospitals in Palghar District, Maharashtra, from November 2018 to March 2019. Specimens also were collected from women 15 - 49 years of age enrolled in a cross-sectional, community-based serosurvey representative at the district level that was conducted 2 - 7 months after the residual specimen collection.

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In this study, we present three different approaches for the colorimetric detection of Ni ions using a specifically designed benzothiazole-quinoline dyad (L) synthesized the Knoevenagel condensation reaction in high yield. The unique properties of L enable a rapid and selective response to Ni ions, making it an ideal probe for practical applications. The probe L shows a pale yellow color under normal conditions.

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  • The study aimed to assess how well women were represented as speakers at U.S. radiology annual scientific meetings from 2019 to 2022.
  • At the Society of Interventional Radiology (SIR), female speaker representation rose from 20.0% to 26.5%, while the American Roentgen Ray Society (ARRS) saw fluctuations, peaking at 48.5% in 2022 after dropping in previous years.
  • The findings highlight a general improvement in female speaker representation, but emphasize the need for ongoing advocacy and strategies to maintain and promote gender equality in radiology.
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China's "three-child policy", implemented in response to population aging, has made the protection of maternal and infant health an urgent priority. In this environmental and medical big-data era, the Zhejiang Environmental and Birth Health Research Alliance (ZEBRA) maternity cohort was established with the aim of identifying risk factors for perinatal morbidity and mortality from the perspectives of both observational epidemiology and experimental etiology. Compared with conventional birth cohorts, the inclusion of a maternity cohort allows greater scope for research and places an emphasis on maternal health.

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  • The text discusses the synthesis and characterization of three new fluorescence probes derived from fluorenone azine, focusing on their structural properties and the methods used for their analysis.
  • These probes exhibit unique photophysical behaviors due to hydrogen bonding interactions that allow for processes like excited state intramolecular proton transfer (ESIPT) and twisted intramolecular charge transfer (TICT).
  • The study highlights the probes' potential applications in bioimaging and viscosity detection, specifically demonstrating that probe 3a is effective for measuring intercellular viscosity in a Caenorhabditis elegans model.
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A new series of acyl hydrazones have been synthesized from 4-chloro-8-nitro-1,2-dihydroquinoline-3-carbaldehyde. These compounds were characterized using various spectroscopic techniques. Density functional theoretical (DFT) studies were conducted to understand the correlation between electronic parameters and biological activity.

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As the demand for sustainable energy continues to rise, electrocatalysis has become increasingly prominent in the advancement of clean energy technologies. By scrutinizing the material to function as a multifunctional catalyst, the effectiveness of energy conversion processes is significantly enhanced. This study focuses on harnessing graphene/WS van der Waals heterostructures for overall water splitting and fuel cell applications, using transition metals (TMs) from Sc-Zn as single-atom catalysts (SACs).

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Strategies to enhance rice productivity in response to global demand have been the paramount focus of breeders worldwide. Multiple factors, including agronomical traits such as plant architecture and grain formation and physiological traits such as photosynthetic efficiency and NUE (nitrogen use efficiency), as well as factors such as phytohormone perception and homeostasis and transcriptional regulation, indirectly influence rice grain yield. Advances in genetic analysis methodologies and functional genomics, numerous genes, QTLs (Quantitative Trait Loci), and SNPs (Single-Nucleotide Polymorphisms), linked to yield traits, have been identified and analyzed in rice.

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Sunflower ( L.), known for its adaptability and high yield potential, is vital in global edible oil production. Estimating genetic diversity is a key pre-breeding activity in crop breeding.

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Enterocolic lymphocytic phlebitis (ELP) is an idiopathic form of venous inflammation that is limited to the gastrointestinal tract. It is characterised by inflammation of the veins with no involvement of the arteries. Usually, it presents with gastrointestinal symptoms such as abdominal pain, and imaging may suggest malignancy.

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Detecting epigenetically modified (EM) bases is crucial for disease detection, biosensing, and DNA sequencing. Two-dimensional P-doped SiBN and BN sheets are used as sensing substrates in density functional theory (DFT) studies. Both the sheets are doped with a phosphorous atom at various atomic sites to examine the sheet's potential in detecting 5-hydroxymethylcytosine (5hmc), 5-methylcytosine (5mc), 7-methylguanine (7mg) and 8-oxoguanine (8oxg) bases.

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  • Morphometric analysis of bones is crucial for reconstructive surgeries, prosthetics, and forensic medicine to estimate age, sex, and height from skeletal remains.
  • The study analyzed 100 distal humerii by measuring key parameters, including humeral length and various diameters of the trochlea and epicondyles.
  • Understanding the anatomy of distal humeri is essential for effectively treating distal humeral fractures, and the data from this study will aid in that knowledge.
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Multilevel inverters (MLIs) are commonly used in renewable energy systems for their high-quality output, low total harmonic distortion (THD), and reduced component count. This study presents a high-gain, single-source MLI designed for renewable applications like solar or wind power. It features a novel topology with twice the voltage-boosting factor, utilizing a single DC source.

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Influenza D virus (IDV), the cattle flu virus, is a novel multi-host RNA virus, circulating silently worldwide, with widespread seropositivity among US cattle, reaching up to 80% in some areas raising a potential threat of cattle-to-human transmission. Currently, five genetic lineages of IDV have been described, but their evolutionary dynamics have not been studied. Although IDV was first identified in 2011, our comprehensive analysis of all known IDV genomes suggests that the earliest ancestors of IDV likely to have evolved towards the end of the 20 century and D/OK lineage appears to have emerged in 2005.

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  • Primary health care is becoming increasingly vital in global policy, leading to India's 2018 Ayushman Bharat program, which transformed primary health facilities into Health and Wellness Centers (HWCs).
  • A study assessed 404 HWCs in Chhattisgarh to evaluate their readiness and performance in delivering primary health care services, measuring service volume against expected healthcare needs.
  • The findings revealed that HWCs treated an average of 358 outpatients monthly, covering 31% of the population's outpatient health needs; however, there were notable gaps in addressing mental health and chronic respiratory diseases, despite adequate resources and infrastructure at most centers.
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Introduction Patients scheduled for laparoscopic cholecystectomy and laparoscopic appendicectomy typically undergo routine preoperative blood grouping and saving (G&S). Despite the low incidence of blood transfusion in this context, the acquisition and processing of G&S samples incur a cost of £31 ($40) per sample. This study aims to review blood transfusion usage in these procedures to determine whether routine G&S sampling is clinically necessary or represents an avoidable expense.

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  • - The study investigates the prevalence of dog bites and human rabies deaths in India, where a significant portion of global rabies cases occurs, aiming to assess progress toward a 2030 elimination goal.
  • - A nationwide survey found that in a year, there were approximately 9.1 million dog bites in India, with 20.5% of those bitten not receiving necessary anti-rabies vaccinations (ARV).
  • - The study estimates around 5,726 human rabies deaths annually, indicating that, despite some progress, there's still a critical need for improved vaccination and prevention strategies.
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