检索结果-南通市图书馆

Steric hindrance effect of Schiff-base ligands on magnetic relaxation dynamics and emissive behavior of two dinuclear dysprosium complexes

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of Rare Earths 2023年第7期41卷 1049-1057,I0003页

作者： Youdong Jiang sourav dey Hongshan Ke Yongsheng Yang Lin Sun Gang Xie Sanping Chen Gopalan Rajaraman Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of Education College of Chemistry and Materials ScienceNorthwest UniversityXi'an 710127China Department of Chemistry Indian Institute of Technology BombayPowaiMumbai400076India State Key Laboratory of Rare Earth Resource Utilization Changchun Institute of Applied ChemistryChinese Academy of SciencesChangchun 130022China Henan Key Laboratory of Polyoxometalate Chemistry Institute of Molecular and Crystal EngineeringCollege of Chemistry and Chemical EngineeringHenan UniversityKaifeng 475004China

The self-assembly reactions between mixed-ligand and tetrahydrate dysprosium acetate in the presence of mixed organic solvents lead to two structural similar dinuclear dysprosium complexes with composition formulas of Dy_(2)(L_1)_(2)(L_(2))_(2)(CH_(3)OH)_(2)·CH_(2)Cl_(2)·CH_(3)OH(1) and Dy_(2)(L_1)_(2)(L_(3))_(2)(CH_(3)OH)_(2)·CH_(3)CN(2),where L_1,L_(2) and L_(3) represent the deprotonated form of 4-tert-butyl-2-(7-methoxybenzo[d]oxazol-2-yl)phenol,(E)-1-(((3,5-di-tert-butyI-2-hydroxyphenyI)imino)methyl)naphthalen-2-ol and(E)-2,4-di-tertbutyl-6-((2-hydroxybenzylidene)amino)phenol.The tiny difference of the core structure of 1 and 2 is derived from the steric hindrance of Schiff base ligands L_(2) and L_(3).Dynamic magnetic measurements reveal that 1 and 2 show frequency-dependent out-of-phase alternating-current susceptibility signal peaks at different temperatures under zero dc field,diagnostic of single-molecule magnet behavior.The experimental derived energy barrier to magnetization reversal for 1 and 2 is 108(1),47(2) and 33(3) K.Ab initio CASSCF calculations performed on 1 and 2 suggest that the origin of the difference in magnetic properties originates from the variation in the single-ion anisotropy that arises due to minor structural variation.Further,the equation to calculate the effective energy barrier for Dy_(2) proposed earlier is found to yield an excellent agreement with the experimental results.Solid state fluorescence measurements performed on 1 and 2 demonstrate that both exhibit two ligands centered components of fluorescent emissive,in addition,with different emitting colors and chromaticity coordinates.The discrepancy of fluorescence and single molecule magnet behavior showed by 1 and 2 can be attributed to the steric hindrance effect of Schiff base ligands.

关键词： Fluorescent single-molecule magnets Dinuclear dysprosium complexes Mixed ligand Steric hindrance Theoretical calculations Rare earths

Workout Action Recognition in Video Streams Using an Attention Driven Residual DC-GRU Network

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Computers, Materials & Continua 2024年第5期79卷 3067-3087页

作者： Arnab dey Samit Biswas Dac-Nhuong Le Department of Computer Science and Technology Indian Institute of Engineering Science and TechnologyShibpurHowrah711103India Faculty of Information Technology Haiphong UniversityHaiphong180000Vietnam

Regular exercise is a crucial aspect of daily life, as it enables individuals to stay physically active, lowers thelikelihood of developing illnesses, and enhances life expectancy. The recognition of workout actions in videostreams holds significant importance in computer vision research, as it aims to enhance exercise adherence, enableinstant recognition, advance fitness tracking technologies, and optimize fitness routines. However, existing actiondatasets often lack diversity and specificity for workout actions, hindering the development of accurate recognitionmodels. To address this gap, the Workout Action Video dataset (WAVd) has been introduced as a significantcontribution. WAVd comprises a diverse collection of labeled workout action videos, meticulously curated toencompass various exercises performed by numerous individuals in different settings. This research proposes aninnovative framework based on the Attention driven Residual Deep Convolutional-Gated Recurrent Unit (ResDCGRU)network for workout action recognition in video streams. Unlike image-based action recognition, videoscontain spatio-temporal information, making the task more complex and challenging. While substantial progresshas been made in this area, challenges persist in detecting subtle and complex actions, handling occlusions,and managing the computational demands of deep learning approaches. The proposed ResDC-GRU Attentionmodel demonstrated exceptional classification performance with 95.81% accuracy in classifying workout actionvideos and also outperformed various state-of-the-art models. The method also yielded 81.6%, 97.2%, 95.6%, and93.2% accuracy on established benchmark datasets, namely HMDB51, Youtube Actions, UCF50, and UCF101,respectively, showcasing its superiority and robustness in action recognition. The findings suggest practicalimplications in real-world scenarios where precise video action recognition is paramount, addressing the persistingchallenges in the field. TheWAVd dataset serves as a catalyst for the development ofmo

关键词： Workout action recognition video stream action recognition residual network GRU attention

A comprehensive review of 3D cancer models for drug screening and translational research

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Cancer Innovation 2024年第1期3卷 61-78页

作者： Karthikey Sharma Sreenath dey Rounik Karmakar Aravind Kumar Rengan Department of Biomedical Engineering Indian Institute of Technology(IIT)HyderabadIndia

The 3D cancer models fill the discovery gap of 2D cancer models and play an important role in cancer research.In addition to cancer cells,a range of other factors include the stroma,density and composition of extracellular matrix,cancer-associated immune cells(e.g.,cancer-associated fibroblasts cancer cell-stroma interactions and subsequent interactions,and a number of other factors(e.g.,tumor vasculature and tumor-like microenvironment in vivo)has been widely ignored in the 2D concept of culture.Despite this knowledge,the continued use of monolayer cell culture methods has led to the failure of a series of clinical trials.This review discusses the immense importance of tumor microenvironment(TME)recapitulation in cancer research,prioritizing the individual roles of TME elements in cancer histopathology.The TME provided by the 3D model fulfills the requirements of in vivo spatiotemporal arrangement,components,and is helpful in analyzing various different aspects of drug sensitivity in preclinical and clinical trials,some of which are discussed here.Furthermore,it discusses models for the co-assembly of different TME elements in vitro and focuses on their synergistic function and responsiveness as tumors.Furthermore,this review broadly describes of a handful of recently developed 3D models whose main focus is limited to drug development and their screening and/or the impact of this approach in preclinical and translational research.

关键词： 3D models cancer drug development translational research tumor microenvironment elements

Demand side management for solving environment constrained economic dispatch of a microgrid system using hybrid MGWOSCACSA algorithm

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

CAAI Transactions on Intelligence Technology 2022年第2期7卷 256-267页

作者： sourav Basak Bishwajit dey Biplab Bhattacharyya Department of Electrical Engineering Indian Institute of Technology(Indian School of Mines)DhanbadIndia Department of Electrical and Electronics Engineering Gandhi Institute of Engineering and TechnologyGunupurOdishaIndia

Microgrids are a type of restricted power distribution systems in which electricity is generated,transmitted,and distributed within a small geographic region.They are used to ensure that renewable energy sources are used to their full potential.Microgrids provide further benefits,such as lowering transmission losses and the expenses associated with them.This research compares and contrasts the aims of economic dispatch,emission dispatch,fractional programing based combined economic emission dispatch,and environmental restricted economic dispatch(ECED).A low-voltage microgrid system is investigated for three different scenarios.As a study optimization tool,an innovative,resilient,and strong hybrid swarm-intelligence optimization algorithm is utilised,which is based on combining the properties of the traditional grey-wolf optimiser,sine-cosine algorithm,and crow search algorithm.The employment of a time-of-use energy mar-ket pricing approach instead of a fixed pricing plan resulted in a 15%decrease in gen-eration costs throughout the course of the research.When ECED was assessed with a 15%-20%demand side management based restructured load demand model for the microgrid system,the generation costs were reduced even further.

关键词： demand side management energy management MGWOSCACSA microgrid

Prediabetes: An overlooked risk factor for major adverse cardiac and cerebrovascular events in atrial fibrillation patients

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

World Journal of Diabetes 2024年第1期15卷 24-33页

作者： Rupak Desai Nishanth Katukuri Sumaja Reddy Goguri Azra Kothawala Naga Ruthvika Alle Meena Kumari Bellamkonda Debankur dey Sharmila Ganesan Minakshi Biswas Kuheli Sarkar Pramoda Prattipati Shaylika Chauhan Independent Researcher Independent ResearcherAtlantaGA 30079United States Department of Internal Medicine Mayo ClinicRochesterMN 55902United States Department of Medicine Chalmeda Anand Rao Institute of Medical SciencesTelangana 505001India Department of Medicine Jawaharlal Nehru Medical CollegeBelgaum 590010India Department of Medicine Narayana Medical CollegeAndhra PradeshNellore 524003India Department of Medicine Dr Pinnamaneni Siddhartha Institute of Medical Sciences and Research FoundationVijaywada 521286India Department of Medicine Medical College KolkataKolkata 700073India Department of Medicine P.E.S.Institute of Medical Sciences and ResearchAndhra Pradesh 517425India Department of Medicine Shaheed Ziaur Rahman Medical CollegeBogra 5800Bangladesh Department of Medicine College of Medicine and J.N.M HospitalKalyani 741235India Department of Medicine Jawaharlal Nehru Medical College IndiaKarnatakaBelagavi 590010India Department of Internal Medicine Geisinger Health SystemWikes-BarrePA 18702United States

BACKGROUND Prediabetes is a well-established risk factor for major adverse cardiac and cerebrovascular events(MACCE).However,the relationship between prediabetes and MACCE in atrial fibrillation(AF)patients has not been extensively studied.Therefore,this study aimed to establish a link between prediabetes and MACCE in AF patients.AIM To investigate a link between prediabetes and MACCE in AF patients.METHODS We used the National Inpatient Sample(2019)and relevant ICD-10 CM codes to identify hospitalizations with AF and categorized them into groups with and without prediabetes,excluding diabetics.The primary outcome was MACCE(all-cause inpatient mortality,cardiac arrest including ventricular fibrillation,and stroke)in AF-related hospitalizations.RESULTS Of the 2965875 AF-related hospitalizations for MACCE,47505(1.6%)were among patients with prediabetes.The prediabetes cohort was relatively younger(median 75 vs 78 years),and often consisted of males(56.3%vs 51.4%),blacks(9.8%vs 7.9%),Hispanics(7.3%vs 4.3%),and Asians(4.7%vs 1.6%)than the non-prediabetic cohort(P<0.001).The prediabetes group had significantly higher rates of hypertension,hyperlipidemia,smoking,obesity,drug abuse,prior myocardial infarction,peripheral vascular disease,and hyperthyroidism(all P<0.05).The prediabetes cohort was often discharged routinely(51.1%vs 41.1%),but more frequently required home health care(23.6%vs 21.0%)and had higher costs.After adjusting for baseline characteristics or comorbidities,the prediabetes cohort with AF admissions showed a higher rate and significantly higher odds of MACCE compared to the non-prediabetic cohort[18.6%vs 14.7%,odds ratio(OR)1.34,95%confidence interval 1.26-1.42,P<0.001].On subgroup analyses,males had a stronger association(aOR 1.43)compared to females(aOR 1.22),whereas on the race-wise comparison,Hispanics(aOR 1.43)and Asians(aOR 1.36)had a stronger association with MACCE with prediabetes vs whites(aOR 1.33)and blacks(aOR 1.21).CONCLUSION This population-based study found a significant association betw

关键词： Prediabetes Atrial fibrillation Cardiovascular disease risk Major adverse cardiovascular and cerebrovascular events Stroke Mortality

Emergence of taurine as a therapeutic agent for neurological disorders

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Neural Regeneration Research 2024年第1期19卷 62-68页

作者： Ashok Jangra Priyanka Gola Jiten Singh Pooja Gond Swarnabha Ghosh Mahesh Rachamalla Abhijit dey Danish Iqbal Mehnaz Kamal Punya Sachdeva Saurabh Kumar Jha Shreesh Ojha Dinesh Kumar Niraj Kumar Jha Hitesh Chopra Shing Cheng Tan Department of Pharmaceutical Sciences Central University of HaryanaMahendergarhHaryanaIndia Department of Biology University of SaskatchewanSaskatoonSKCanada Department of Life Sciences Presidency UniversityKolkataWest BengalIndia Department of Health Information Management College of Applied Medical SciencesBuraydah Private CollegesBuraydahSaudi Arabia Department of Pharmaceutical Chemistry College of PharmacyPrince Sattam Bin Abdulaziz UniversityAl-KharjSaudi Arabia GloNeuro Vishwakarma RoadNoidaIndia Department of Biotechnology School of Engineering&Technology(SET)Sharda UniversityGreater NoidaUttar PradeshIndia Department of Pharmacology and Therapeutics College of Medicine and Health SciencesUnited Arab Emirates UniversityAl AinUnited Arab Emirates School of Bioengineering&Biosciences Lovely Professional UniversityPhagwaraIndia Department of Biotechnology School of Applied&Life Sciences(SALS)Uttaranchal UniversityDehradunIndia Chitkara College of Pharmacy Chitkara UniversityPunjabIndia UKM Medical Molecular Biology Institute Universiti Kebangsaan MalaysiaKuala LumpurMalaysia

Taurine is a sulfur-containing,semi-essential amino acid that occurs naturally in the body.It alternates between inflammation and oxidative stress-mediated injury in various disease models.As part of its limiting functions,taurine also modulates endoplasmic reticulum stress,Ca^(2+)homeostasis,and neuronal activity at the molecular level.Taurine effectively protects against a number of neurological disorders,including stro ke,epilepsy,cerebral ischemia,memory dysfunction,and spinal cord injury.Although various therapies are available,effective management of these disorders remains a global challenge.Approximately 30 million people are affected worldwide.The design of taurine fo rmation co uld lead to potential drugs/supplements for the health maintenance and treatment of central nervous system disorders.The general neuroprotective effects of taurine and the various possible underlying mechanisms are discussed in this review.This article is a good resource for understanding the general effects of taurine on various diseases.Given the strong evidence for the neuropharmacological efficacy of taurine in various experimental paradigms,it is concluded that this molecule should be considered and further investigated as a potential candidate for neurotherapeutics,with emphasis on mechanism and clinical studies to determine efficacy.

关键词： antioxidant epilepsy γ-amino butyric acid neurodegenerative disorders neuroprotection oxidative stress spinal cord injury taurine

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

特斯拉的增长前景面临疑问

商业周刊（中文版） 2024年第5期 62-63页

作者： Esha dey 程玺(译) 不详

特斯拉公司(Tesla Inc.)近期发布了异常低迷的季度销售数据,这让投资者面对一个根本性问题:如果快速增长的时代已经终结,埃隆·马斯克(Elon Musk)公司的股票究竟值多少钱?

关键词：增长前景特斯拉销售数据股票根本性问题投资者

Innovation in pathogenesis and management of aortic aneurysm

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

World Journal of Experimental Medicine 2024年第2期14卷 35-45页

作者： Maryam Barkhordarian Hadrian Hoang-Vu Tran Aiswarya Menon Sai Priyanka Pulipaka Izage Kianifar Aguilar Axel Fuertes Shraboni dey Angel Ann Chacko Tanni Sethi Ayrton Bangolo Simcha Weissman Department of Internal Medicine Palisades Medical CenterNorth BergenNJ 07047United States

Aortic aneurysm(AA)refers to the persistent dilatation of the aorta,exceeding three centimeters.Investigating the pathophysiology of this condition is important for its prevention and management,given its responsibility for more than 25000 deaths in the United States.AAs are classified based on their location or morphology.various pathophysiologic pathways including inflammation,the immune system and atherosclerosis have been implicated in its development.Inflammatory markers such as transforming growth factorβ,interleukin-1β,tumor necrosis factor-α,matrix metalloproteinase-2 and many more may contribute to this phenomenon.Several genetic disorders such as Marfan syndrome,Ehler-Danlos syndrome and Loeys-Dietz syndrome have also been associated with this disease.Recent years has seen the investigation of novel management of AA,exploring the implication of different immune suppressors,the role of radiation in shrinkage and prevention,as well as minimally invasive and newly hypothesized surgical methods.In this narrative review,we aim to present the new contributing factors involved in pathophysiology of AA.We also highlighted the novel management methods that have demonstrated promising benefits in clinical outcomes of the AA.

关键词： Aortic aneurysm Abdominal aneurysm Thoracic aneurysm Immunotherapy Surgical management Pathophysiology Inflammation and molecular pathways

Corrigendum to'Cancer chemotherapy and beyond:Current status,drug candidates,associated risks and progress in targeted therapeutics'[Genes&Diseases 10(2023)1367-1401]

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Genes & Diseases 2024年第4期11卷 426-427页

作者： Uttpal Anand Abhijit dey Arvind K.Singh Chandel Rupa Sanyal Amarnath Mishra Devendra Kumar Pandey Valentina De Falco Arun Upadhyay Ramesh Kandimalla Anupama Chaudhary Jaspreet Kaur Dhanjal Saikat Dewanjee Jayalakshmi Vallamkondu Jose MPerez de la Lastra Department of Life Sciences Ben-Gurion University of the NegevBeer-Sheva 84105Israel Department of Life Sciences Presidency UniversityKolkataWest Bengal 700073India Center for Disease Biology and Integrative Medicine Faculty of MedicineThe University of TokyoTokyo 113-0033Japan Department of Botany Bhairab Ganguly College(affliated to West Bengal State University)KolkataWest Bengal 700056India Faculty of Science and Technology Amity Institute of Forensic SciencesAmity University Uttar PradeshNoida 201313India Department of Biotechnology School of Bioengineering and BiosciencesLovely Professional UniversityPhagwaraPunjab 144411India Institute of Endocrinology and Experimental Oncology(IEOS) National Research Council(CNR)Department of Molecular Medicine and Medical Biotechnology(DMMBM)University of Naples FedericoⅡNaples 80131Italy Department of Biochemistry School of Life SciencesCentral University of RajasthanBandar SindariKishangarhAjmerRajasthan 305817India CSiR-indian Institute of Chemical Technology HyderabadTelangana 500007India Department of Biochemistry Kakatiya Medical CollegeWarangalTelangana 506007India Orinin-BioSystems LE-52Lotus Road 4CHD CityKarnalHaryana 132001India Department of Computational Biology Indraprastha Institute of Information Technology Delhi(ⅢT-D)Okhla Industrial EstatePhaseⅢNew Delhi 110020India Advanced Pharmacognosy Research Laboratory Department of Pharmaceutical TechnologyJadavpur UniversityKolkata 700032India Department of Physics National Institute of Technology-WarangalWarangalTelangana 506004India Biotechnology of Macromolecules Research Group Instituto de Productos Naturales y AgrobiologiaIPNA-CSICSan Cristobal de La Laguna 38206TenerifeSpain

In the published article,there was an error in the affiliation information about the first author Uttpal Anand[a].Instead of"Department of Life Sciences,Ben-Gurion University of the Negev,Beer-Sheva 84105,Israel",it should be"CytoGene Research&Development LLP,K-51,UPSIDA Industrial Area,Kursi Road(Lucknow),Dist.Barabanki,225001,Uttar Pradesh,India".The authors would like to apologize for any inconvenience caused and state that this does not change the scientific conclusions of thearticle inanyway.

关键词： Cancer Cor targeted