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Electron 2024年第2期2卷 159-195页

作者： Pariksha Bishnoi samarjeet singh siwal Vijay kumar Thakur Department of Chemistry M.M.Engineering CollegeMaharishi Markandeshwar(Deemed to be University)Mullana-AmbalaHaryanaIndia Biorefining and Advanced Materials Research Center Scotland's Rural College(SRUC)EdinburghUK 3School of WaterEnergy and EnvironmentCranfield UniversityCranfieldUK

There has been a significant scope toward the cutting-edge in-vestigations in hierarchical carbon nanostructured electrodes originating from cellulosic materials,such as cellulose nanofibers,available from natural cellulose and bacterial *** of energy storage systems(Esss)are typically established upon inorganic/metal mixtures,carbonaceous implications,and petroleum-derived hydrocarbon ***,these conventional substances may need help fulfilling the ever-increasing needs of *** has grown significantly as an impressive 1D element due to its natural availability,eco-friend-liness,recyclability,structural identity,simple transformation,and dimensional ***,in this review article,we have discussed the role and overview of cellulose-based hydrogels in ***,the extraction sources and solvents used for dissolution have been dis-cussed in ***,the properties(such as self-healing,trans-parency,strength and swelling behavior),and applications(such as flexible batteries,fuel cells,solar cells,flexible supercapacitors and carbon-based derived from cellulose)in energy storage devices and conclusion with existing challenges have been updated with recent findings.

关键词： batteries cellulose-based materials energy storage devices fuel cells hydrogels supercapacitors

Atomic Dispersed Hetero‑Pairs for Enhanced Electrocatalytic CO_(2)Reduction

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Nano-Micro Letters 2024年第1期16卷 55-67页

作者： Zhaoyong Jin Meiqi Yang Yilong Dong Xingcheng Ma Ying Wang Jiandong Wu Jinchang Fan Dewen Wang Rongshen Xi Xiao Zhao Tianyi Xu Jingxiang Zhao Lei Zhang David J.singh Weitao Zheng Xiaoqiang Cui state key Laboratory of Automotive simulation and Control School of Materials Science and EngineeringKey Laboratory of Automobile Materials of MOEElectron Microscopy CenterJilin UniversityChangchun 130012People’s Republic of China key Laboratory of Photonic and Electronic Bandgap Materials Ministry of Educationand College of Chemistry and Chemical EngineeringHarbin Normal UniversityHarbin 150025People’s Republic of China College of Chemistry Jilin UniversityChangchun 130012People’s Republic of China Department of Physics and Astronomy and Department of Chemistry University of MissouriColumbiaMO 65211USA

Electrochemical carbon dioxide reduction reaction(CO_(2)RR)involves a variety of intermediates with highly correlated reaction and ad-desorption energies,hindering optimization of the catalytic *** example,increasing the binding of the*COOH to the active site will generally increase the*CO desorption *** this relationship may be expected to dramatically improve the intrinsic activity of CO_(2)RR,but remains an unsolved ***,we addressed this conundrum by constructing a unique atomic dispersed hetero-pair consisting of Mo-Fe di-atoms anchored on N-doped carbon *** system shows an unprecedented CO_(2)RR intrinsic activity with TOF of 3336 h−1,high selectivity toward CO production,Faradaic efficiency of 95.96%at−0.60 V and excellent *** calculations show that the Mo-Fe diatomic sites increased the*COOH intermediate adsorption energy by bridging adsorption of*COOH *** the same time,d-d orbital coupling in the Mo-Fe di-atom results in electron delocalization and facilitates desorption of*CO ***,the undesirable correlation between these steps is *** work provides a promising approach,specifically the use of di-atoms,for breaking unfavorable relationships based on understanding of the catalytic mechanisms at the atomic scale.

关键词： CO_(2)reduction reaction Atomic dispersed catalyst Hetero-diatomic pair Ad-desorption energy Linear scaling relation

Dietary Green Tea Extract and Antioxidants Improve Insulin secretory Functions of Pancreatic β-Cells in Mild and severe Experimental Rodent Model of Chronic Pancreatitis

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Open Journal of Endocrine and Metabolic Diseases 2024年第2期14卷 53-72页

作者： Galande sheethal Ranjeet k. Tokala Pavan Pondugala krishna Vemula Vijayalakshmi Venkatesan Pothani suresh surya satyanarayana singh Guduru Venkat Rao Duvvur Nageshwar Reddy Mitnala sas.k.la Basic science and Translational Research Division Asian Healthcare Foundation AIG Hospitals Hyderabad India Division of Cell and Molecular Biology National institute of Nutrition Hyderabad India National Animal Resource Facility for Biomedical Research Hyderabad India Department of Biochemistry Osmania University Hyderabad India Department of surgical Gastroenterology Asian Institute of Gastroenterology Hyderabad India Department of Gastroenterology Asian Institute of Gastroenterology Hyderabad India

Chronic pancreatitis (CP) is a progressive inflammatory disorder of the pancreas. It is predominantly idiopathic (with an unknown cause) in India and mostly due to alcohol in the West. Diabetes that occur secondary to chronic pancreatitis (T3c Diabetes) is often brittle, and is difficult to attain normoglycemia with conventional treatment requiring multiple doses of insulin. Mild and severe model of CP was induced in mice by repeated intraperitoneal injections of cerulein and L-arginine respectively with an intent to study islet dysfunction and develop therapeutic strategy in animal models of CP. Dietary intervention of epigallocatechin-3-gallate (EGCG) was tested in both the models of CP for its beneficial effects on insulin secretory functions. Pancreata collected upon euthanasia were used to study alterations in the morphology of pancreatic parenchyma and inflammation by staining with H&E and fibrotic changes by Masson’s trichrome and picrosirius staining. Insulin secretory functions of islets were evaluated to test the efficacy of the dietary intervention on β-cell functions. Intraperitoneal glucose tolerance test was performed to monitor the glucose homeostasis before and after the dietary intervention. Both the models resulted in CP with dispersed acini, inflammation and fibrosis. The loss of acini and extent of fibrosis was more in L-arginine model. 2-fold improvement in glucose-stimulated insulin secretory functions of islets was observed with 0.5% EGCG dietary intervention in cerulein model of CP and 1.6-fold in L-arginine model of CP. A further improvement in insulin secretion by 3.2-fold was observed with additional dietary supplements like N-acetyl cysteine, curcumin in combination with EGCG. Our results thus demonstrate and highlight the therapeutic potential of dietary green tea (EGCG) supplementation in reversing islet dysfunction and improving glucose homeostasis in experimental chronic pancreatitis in mice.

关键词： Dietary Intervention C57BL6/J Mice Epigallocatechin-3-Gallate N-Acetyl Cysteine Curcumin Chronic Pancreatitis Islets Glucose stimulated Insulin secretion

A routing protocol for urban vehicular ad hoc networks to support non-safety applications

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Digital Communications and Networks 2018年第3期4卷 189-199页

作者： s.k. Bhoi P.M. khilar M. singh R.R. sahoo R.R. swain Department of Computer science and Engineering ParMa Maharaja Engineering College (Govt.) Berharnpur 761003 India Parallel and Distributed Computing Lob Department of Compeer Science and Engineering National Institute of Technology Rourkela 769008 India Department of Computer science and Engineering VIT University Bhopal 466114 India

The Urban Vehicular Ad Hoc Network （UVANET） provides non-safety applications like media sharing, internet service, file transfer, gaming, and so on. Routing plays an important role in providing better services to the users in UVANET. In this paper, a novel routing protocol is proposed for UVANET to support non-safety applications. We consider a non-safety application wherein the drivers and passengers of different parking lots can play multiplayer games with each other. To play the games smoothly, the game data should reach the destination in a minimum time. simulation results show that when the vehicle density in the city area is high, the proposed protocol meets the end-to-end delay tolerance of 100 ms. Finally, an experiment is performed to validate the proposed routing protocol by running a simple puzzle game in a UVANET prototype designed in an indoor laboratory environment and in an outdoor environment.

关键词： UVANET Non-safety applications Routing Gaming slow-paced games

kinetic Energy Recovery from the Chimney Flue Gases Using Ducted Turbine system

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Chinese Journal of Mechanical Engineering 2017年第2期30卷 472-482页

作者： Harjeet s.Mann Pradeep k.singh Department of Mechanical Engineering Sant LongowalInstitute of Engineering and TechnologyLongowalPunjab 148106India

An innovative idea of extracting kinetic energy from man-made wind resources using ducted turbine system for on-site power generation is introduced in this paper. A horizontal axis ducted turbine is attached to the top of the chimney to harness the kinetic energy of flue gases for producing electricity. The turbine system is positioned beyond the chimney outlet, to avoid any negative impact on the chimney performance. The convergentdivergent duct causes increase in the flue gas velocity and hence enhances the performance of the turbine. It also acts as a safety cover to the energy recovery system. The results from the CFD based simulation analysis indicate that sig- nificant power 34 kW can be harnessed from the chimney exhaust. The effect of airfoils NACA4412 and NACA4416 and the diffuser angle on the power extraction by the energy recovery system using a 6-bladed ducted turbine has been studied with the CFD simulation. It is observed that the average flue gas velocity in the duct section at the throat is approximately twice that of the inlet velocity, whereas maximum velocity achieved is 2.6 times the inlet velocity. The simulated results show that about power may be extracted from the chimney flue gases of 660 MW power plant. The system can be retrofitted to existing chimneys of thermal power plants, refineries and other industries.

关键词： Chimney flue gases Energy recovery system ·kinetic energy Ducted turbine CFD

saddle Point Criteria in Nonsmooth semi-Infinite Minimax Fractional Programming Problems

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Journal of systems science & Complexity 2018年第2期31卷 446-462页

作者： MIsHRA s.k.singh Yadvendra VERMA R U Department of Mathematics Banaras Hindu University Varanasi-221005 India. Department of Mathematics Texas State University USA

This paper considers a nonsmooth semi-infinite minimax fractional programming problem（sIMFP） involving locally Lipschitz invex functions. The authors establish necessary optimality conditions for sIMFP. The authors establish the relationship between an optimal solution of sIMFP and saddle point of scalar Lagrange function for sIMFP. Further, the authors study saddle point criteria of a vector Lagrange function defined for sIMFP.

关键词： Generalized convexity Lagrange function nonsmooth programming problems saddlepoint semi-infinite minimax fractional programming problems.

Microwave assisted synthesis,spectroscopy and biochemical aspects of lanthanum(Ⅲ) and praseodymium(Ⅲ) complexes with oxadiazole functionalised dithiocarbazinates

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Journal of Rare Earths 2009年第5期27卷 698-704页

作者： shweta singh O P Pandey s.k.sengupta Department of Chemistry D.D.U.Gorakhpur University Chemistry Department University of Surrey

The new lanthanum (Ⅲ) and praseodymium (Ⅲ) complexes of the general formula [Ln(L)3] (Ln=La(Ⅲ) or Pr(Ⅲ); Lk=potassium salt of dithiocarbazinates) were prepared by both, conventional thermal and by the use of microwave technology. Elemental analyses, electrical conductance, magnetic moment and electronic, infrared, far-infrared, 1H and 13C NMR spectral studies were used to characterize the complexes. The molecular weights of few complexes were determined by FAB-mass spectra. Nephelauxetic ratio, covalency parameter and bonding parameter for these complexes were also calculated. The probable structures of the complexes were proposed. The antifungal and antibacterial activities of the complexes were evaluated. The activities were correlated with the structures of the compounds.

关键词： lanthanum (Ⅲ) praseodymium (Ⅲ) dithiocarbazinates microwave synthesis structures antifungal antibacterial rare earths

Exopolysaccharide-Producing Plant Growth-Promoting Rhizobacteria Under salinity Condition

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Pedosphere 2011年第2期21卷 214-222页

作者： s.k.UPADHYAY J.s.singh D.P.singh Department of Environmental science Babasaheb Bhimrao Ambedker (Central) UniversityRaibarelly RoadLucknow-226025 (India)

salt-tolerant plant growth-promoting rhizobacteria （PGPR） can play an important role in alleviating soil salinity stress during plant growth and bacterial exopolysaccharide （EPs） can also help to mitigate salinity stress by reducing the content of Na＋ available for plant uptake. In this study, native bacterial strains of wheat rhizosphere in soils of Varanasi, India, were screened to identify the EPs-producing salt-tolerant rhizobacteria with plant growth-promoting traits. The various rhizobacteria strains were isolated and identified using 16s rDNA sequencing. The plant growth-promoting effect of inoculation of seedlings with these bacterial strains was evaluated under soil salinity conditions in a pot experiment. Eleven bacterial strains which initially showed tolerance up to 80 g L-1 NaC1 also exhibited an EPs-producing potential. The results suggested that the isolated bacterial strains demonstrated some of the plant growth-promoting traits such as phosphate solubilizing ability and production of auxin, proline, reducing sugars, and total soluble sugars. Furthermore, the inoculated wheat plants had an increased biomass compared to the unoinoculated plants.

关键词： NaCl plant uptake rhizosphere salt tolerance wheat

Trends in mortality among the geriatric population undergoing surgical aortic valve replacement (sAVR) and potential racial disparities: a 20-year perspective via the National (Nationwide) Inpatient sample

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Journal of Geriatric Cardiology 2024年第7期21卷 716-722页

作者： Nomesh kumar kamleshun Ramphul FNU Bawna Nitish Behary Paray Mansimran si-ngh Dulay Jasninder singh Dhaliwal shruti Aggarwal sebastian Mactaggart suma sri Chennapragada shaheen sombans Renuka Verma Hemamalini s.k.hivel Raheel Ahmed Department of Internal Medicine Detroit Medical Center Sinai Grace-Wayne State UniversityMichiganUSA In-dependent Researcher TrioletMauritius Independent researcher Farmington HillsMichiganUSA Royal Devon University Healthcare NHs Foundation Trust ExeterUnited Kingdom Royal Brompton Hospital part of Guy’s and St.Thomas’NHS Foundation TrustLondonUnited Kingdom Department of Internal Medicine University of Cali-forniaRiversideUSA Independent Researcher New DelhiIndia Northumbria Hospitals NHs Foundation Trust NewcastleUnited Kingdom Department of Internal Medicine Louisiana State UniversityShreveportUSA sha-heen sombans Independent ResearcherHyderabadIndia Department of Internal Medicine Kirk Kerkorian School of Medicine at UNLVLas VegasUSA One Brooklyn Health system/Interfaith Medical Ctr Program BrooklynNYUSA

Background Racial disparities in cardiovascular conditions are well *** similar race-based discrepancies in health outcomes also exist among elderly patients undergoing surgical aortic valve replacement(sAVR) for aortic stenosis remains *** We abstracted data from the National(Nationwide) Inpatient sample over a 20-year period from 2001 to 2020 using specific ICD-9 and ICD-10 *** included patients aged ≥ 60 and ≤ 80 years with races recorded as White,African American,or Hispanic at the time of their hospitalization for *** analyzed and reported the baseline characteristics,risk-adjusted inhospital mortality,and complications stratified by *** Of 420,181 patients studied,90.0% identified as White,4.0% as African American and 6.0% as *** a decrease in overall in-hospital mortality rates from 3.8% between 2001-2005 to 1.8% between 2016-2020,African Americans had higher odds of all-cause in-hospital deaths compared to Whites(a OR = 1.390,P kely to experience cardiogenic shock(a OR = 1.241,P kidney injury(a OR = 1.314,P s well as more likely to require organ support such as IABP use(a OR = 1.336,P sive mechanical ventilation(a OR = 1.342,P stingly,African Americans were less likely to report events of acute ischemic stroke compared to Whites(a OR = 0.852,P sions Despite a reassuring reduction in overall in-hospital mortality rates of geriatric patients undergoing sAVR for aortic stenosis,racial disparities in health outcomes remain pervasive with minorities more likely to report higher in-hospital morbidity and mortality.

关键词： mortality likely spite

Global trends in hepatitis C-related hepatocellular carcinoma mortality:A public database analysis(1999-2019)

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World Journal of Virology 2024年第1期13卷 69-83页

作者： Hassam Ali Fnu Vikash Vishali Moond Fatima khalid Abdur Rehman Jamil Dushyant singh Dahiya Amir Humza sohail Manesh kumar Gangwani Pratik Patel sanjaya k satapathy Department of Internal Medicine/Gastroenterology East Carolina University Brody School of MedicineGreenvilleNC 27834United States Department of Internal Medicine Jacobi Medical Center/Albert Einstein College of MedicineBronxNY 10461United States Department of Internal Medicine Saint Peter's University Hospital/Robert Wood Johnson Medical SchoolNew BrunswickNJ 08901United States Department of Internal Medicine Quaid-e-Azam Medical CollegeBahawalpur 63100PunjabPakistan Department of Internal Medicine Samaritan Medical CentreWatertownMA 13601United States Division of Gastroenterology Hepatology&MotilityThe University of Kansas School of MedicineKansas CityKS 66160United States Department of surgery New York University Winthrop HospitalNew YorkMineloaNY 11501United States Department of Internal Medicine The University of ToledoToledoOH 43606United States Department of Gastroenterology Mather Hospital/Hofstra University Zucker School of MedicineNY 11777United States Division of Hepatology Department of MedicineNorth Shore University HospitalManhassetNY 11030United States

BACkGROUND Hepatitis C is the leading cause of chronic liver disease worldwide and it significantly contributes to the burden of hepatocellular carcinoma(HCC).However,there are marked variations in the incidence and mortality rates of HCC across different geographical *** the advent of new widely available treatment modalities,such as direct-acting antivirals,it is becoming increasingly imperative to understand the temporal and geographical trends in HCC mortality associated with Hepatitis ***,gender disparities in HCC mortality related to Hepatitis C are a crucial,yet underexplored aspect that adds to the disease's global *** some studies shed light on gender-specific trends,there is a lack of comprehensive data on global and regional mortality rates,particularly those highlighting gender *** gap in knowledge hinders the development of targeted interventions and resource allocation *** The results of our study show an overall decline in the mortality rates of patients with hepatitis C-related HCC over the last two ***,females exhibited a remarkable decrease in mortality compared to ***,East Asia and the Pacific displayed a significant decline in mortality,while Europe and Central Asia witnessed an upward *** America and the Caribbean also experienced an increase in mortality ***,no significant difference was observed in the Middle East and North *** America exhibited a notable upward *** Asia and sub-saharan Africa significantly declined throughout the study *** raises the hope of identifying areas for implementing more targeted *** some progress,multiple challenges remain in meeting the WHO 2030 goal of eliminating viral hepatitis[24].

关键词： Carcinoma Hepatocellular Antiviral agents Global Burden of Disease Quality indicators Health care Liver neoplasms Hepatitis C Chronic hepatitis C