Publications by authors named "Shukla G"

Employing density functional theory for ground state quantum mechanical calculations and the non-equilibrium Green's function method for transport calculations, we investigate the potential of CdS, ZnS, CdZnS, and ZnCdS as tunnel barriers in magnetic tunnel junctions for spintronics. Based on the finding that the valence band edges of these semiconductors are dominated by p orbitals and the conduction band edges by s orbitals, we show that symmetry filtering of the Bloch states in magnetic tunnel junctions with Fe electrodes results in high tunneling magnetoresistances and high spin-polarized current (up to two orders of magnitude higher than in the case of the Fe/MgO/Fe magnetic tunnel junction).

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Background/objectives: Cardiac arrest may cause significant hypoxic-ischemic injury leading to coma, seizures, myoclonic jerks, or status epilepticus. Mortality is high, but accurate prognostication is challenging. A multimodal approach is employed, in which electroencephalography (EEG) forms a key part with several recognised patterns of prognostic significance.

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Background: Glioblastoma is the most aggressive adult primary brain cancer, characterized by significant heterogeneity, posing challenges for patient management, treatment planning, and clinical trial stratification.

Methods: We developed a highly reproducible, personalized prognostication and clinical subgrouping system using machine learning (ML) on routine clinical data, MRI, and molecular measures from 2,838 demographically diverse patients across 22 institutions and 3 continents. Patients were stratified into favorable, intermediate, and poor prognostic subgroups (I, II, III) using Kaplan-Meier analysis (Cox proportional model and hazard ratios [HR]).

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Hepatitis E is a hepatotropic virus and the most common cause of acute viral hepatitis among adults in India. It has four genotypes, and genotype 1 is mostly associated with sporadic cases. It typically causes self-limiting acute hepatitis following a prodromal course.

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Article Synopsis
  • The study was a retrospective cohort analysis aimed at assessing the impact of gabapentinoids on opioid use after anterior lumbar interbody fusion surgery.
  • While gabapentinoid treatment led to a slight 2.9% reduction in daily opioid consumption, it paradoxically increased the total duration and amount of opioids prescribed significantly (37.1% and 41.7%, respectively).
  • Additionally, the use of gabapentinoids was linked to higher risks of pain-related readmissions and potential drug abuse.
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Objective: Interest in anti-seizure properties of cannabinoids is increasing, with the rise in prevalence of recreational and medical cannabis use, especially across Canada. In a recent study on people with epilepsy (PWE), cannabis use showed a strong association with poor psychosocial health. Sleep and mood comorbidities are highly prevalent in epilepsy, and are common motivations for cannabis use.

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Women are at a significantly higher risk of osteoporotic fractures, largely due to progressive bone demineralization and impaired bone microarchitecture. Low bone mineral density (BMD) is a common condition in women worldwide. Disrupted homocysteine (Hcy) metabolism has been linked to reduced BMD and increased risk of osteoporotic fractures.

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  • Neonatal mortality is a significant global health issue that reflects the effectiveness of maternal and child health services, and this study aimed to identify factors associated with neonatal mortality in Nepal.
  • The study followed 1,104 babies (368 low birth weight and 736 normal weight) for 28 days after birth, revealing a neonatal mortality rate of 10 per 1,000 live births.
  • Key factors linked to higher neonatal mortality included fathers with no formal education, multiple pregnancies, and low APGAR scores at 5 minutes, suggesting that improving education and access to healthcare could enhance neonatal outcomes.
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Purpose: Brain imaging is needed when investigating epilepsy. Imaging options available include MRI and CT scan which may be non-contrast (NCCT) or contrast-enhanced (CECT). The specific clinical question and probable epilepsy substrate in the epidemiological context and socioeconomic milieu are important in determining the choice of imaging.

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Cancer is the predominant and major cause of fatality worldwide, based on the different types of cancer. There is a limitation in the current treatment. So we need better therapeutic agents that counteract the progression and development of malignant tumours.

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Clinical biomedical applications of genomic technologies are extensive and provide possibilities to enhance healthcare covering the span of medical talents. Genome disorder prediction is an important issue in biomedical research. Genome disorders cause multivariate diseases such as cancer, dementia, diabetes, Leigh syndrome, etc.

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  • The biological communication system for neurological disorder patients connects them to the outside world, much like Brain-Computer Interfaces, aiding in real-time communication for paralyzed individuals.
  • A novel feature extraction approach using Empirical Mode Decomposition (EMD) analyzes EEG signals, breaking them down into six Intrinsic Mode Functions to identify nine key features that predict a patient's messages.
  • The proposed method demonstrated high classification accuracy of 97% on a database and 85% in real-time applications, significantly improving communication capabilities for those with neurological disorders compared to existing methods.
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Parasitic diseases remain a significant global health challenge, especially in developing countries, contributing to approximately one million deaths annually. Notably, among the 143 FDA-approved antiparasitic drugs, thirty-four possess chlorine in their chemical structure, highlighting the importance of chlorine substitution. This underscores the significance of chlorine atoms in elucidating structure-activity relationships crucial for drug discovery, aiming to develop safer, more selective, and environmentally friendly molecules with enhanced efficacy.

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Background/aims: A () infection is the most common cause of chronic gastritis (CG), with approximately 50% of the world's population infected. Long-term infection increases the risk of progression to gastric cancer. This study evaluated the histopathological changes in CG using the Updated Sydney System (USS) to estimate the prevalence and correlation of gastritis with other histological variables.

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Garcia et al. recently identified a novel myxobacterial family, Pendulisporaceae, encompassing four strains with novel biosynthetic gene clusters. This study underscores the value of exploring underrepresented microbial taxa for novel natural products, highlighting the potential of the family Pendulisporaceae as a source of new antimicrobial and therapeutic agents.

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Article Synopsis
  • - The study investigates the impact of chronic nicotine addiction on oxidative and psychological stress among unemployed youth in India, revealing significant health detriments and a rise in Homocysteine (Hcy) levels among users.
  • - It involved 156 educated, unemployed male participants aged 20-40, with results showing that nicotine addicts reported higher perceived stress and lower coping abilities compared to non-addicted individuals.
  • - Biochemical analysis indicated that nicotine addiction resulted in increased oxidative stress markers and altered blood parameters, emphasizing the urgent need for interventions targeting nicotine addiction among this demographic.
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Objective: Very few publications have reported the impact of artisanal cannabis use on overall quality of life among people with drug-resistant epilepsy. This study aimed to evaluate the association of artisanal cannabis use among adults with drug-resistant epilepsy with quality of life, and to determine if an association exists between Quality-of-Life in Epilepsy Inventory-31 (QOLIE-31) 'T scores' and different clinical variables.

Methods: This study included patients admitted to a Canadian tertiary care epilepsy center as part of a larger study.

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  • Glioblastoma (GBM) is an aggressive brain tumor that often infiltrates beyond its visible boundaries, making treatment challenging with standard surgical and chemoradiotherapy approaches.
  • A new method was developed that combines expert insights and data augmentation to improve predictions of tumor infiltration using preoperative magnetic resonance imaging (mpMRI) scans from 229 patients.
  • The model was validated through cross-institutional tests, showing varying effectiveness in predicting tumor recurrence, with odds ratios indicating strong potential for guiding targeted treatment strategies.
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Lithium metal batteries operated with high voltage cathodes are predestined for the realization of high energy storage systems, where solid polymer electrolytes offer a possibility to improve battery safety. AlO_PCL is introduced as promising hybrid electrolyte made from polycaprolactone (PCL) and AlO nanoparticles that can be prepared in a one-pot synthesis as a random mixture of linear PCL and PCL-grafted AlO. Upon grafting, synergistic effects of mechanical stability and ionic conductivity are achieved.

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Purpose: Oropharyngeal squamous cell cancers (OPSCCs) are traditionally managed with surgery and, if indicated, adjuvant radiation therapy (RT) with or without chemotherapy. NCCN recommends keeping the time from surgery to the start of RT (TSRT) within 6 weeks to avoid possibly compromising patient outcomes. HPV+ OPSCCs behave more favorably than HPV- OPSCCs.

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A C(sp)-C(sp) cross coupling approach based on an iridium-photocatalytic radical process has been developed enabling the synthesis of various α-alkylated aldehydes from easily available/synthesized alkyl bromides and trialkyl amines under mild photocatalytic conditions. The synthesized aldehydes are also explored as a functional handle for various useful products such as carboxylic acid, alcohol and N-heterocycle synthesis.

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Background: Biofilm formation is viewed as a vital mechanism in C. glabrata pathogenesis. Although, it plays a significant role in virulence but transcriptomic architecture and metabolic pathways governing the biofilm growth mode of C.

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Introduction: Epilepsy is a common neurological disorder characterised by recurrent seizures. Almost half of patients who have an unprovoked first seizure (UFS) have additional seizures and develop epilepsy. No current predictive models exist to determine who has a higher risk of recurrence to guide treatment.

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