检索结果-南通市图书馆

Improved Units of Measure in Rotational Mechanics

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 Mechanics 2024年第1期14卷 1-7页

作者： Richard james Petti Independent Researcher Arlington USA

The SI system of units in rotational mechanics yields correct numerical results, but it produces physically incorrect units of measure in many cases. SI units also violate the principle of general covariance—the general rule for defining continuous coordinates and units in mathematics and mathematical physics. After 30+ years of wrestling with these problems, the ultimate authority on units of measure has declared that Newton–meter and Joule are not equivalent in rotational mechanics, as they are in the rest of physics. This article proposes a simple modification to SI units called “Nonstandard International units” (“NI units”) until a better name is agreed upon. NI units yield correct numerical results and physically correct units of measure, and they satisfy the principle of general covariance. The main obstacle to the adoption of NI units is the consensus among users that the radius of rotation should have the unit meter because the radius can be measured with a ruler. NI units assigned to radius should have units meter/radian because the radius is a conversion factor between angular size and circumferential length, as in arclength = rθ. To manage the social consensus behind SI units, the author recommends retaining SI units as they are, and informing users who want correct units that NI units solve the technical problems of SI units.

关键词： Rotational Mechanics Angular Unit Torque Moment of Inertia Angular Momentum General Covariance

A lunar time scale from the perspective of the Moon’s dynamic evolution

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Science China Earth Sciences 2024年第1期67卷 234-251页

作者： Dijun GUO Jianzhong LIU james WHEAD Fuqin ZHANG Zongcheng LING Shengbo CHEN Jianping CHEN Xiaozhong DING Jinzhu JI Ziyuan OUYANG State Key Laboratory of Space Weather National Space Science CenterChinese Academy of SciencesBeijing 100190China Center for Lunar and Planetary Sciences Institute of GeochemistryChinese Academy of SciencesGuiyang 550081China Department of Earth Environmental and Planetary SciencesBrown UniversityProvidence RI 02912USA Institute of Geology and Geophysics Chinese Academy of SciencesBeijing 100029China Shandong Provincial Key Laboratory of Optical Astronomy and Solar-Terrestrial Environment Institute of Space SciencesShandong UniversityWeihai 264209China College of Geoexploration Science and Technology Jilin UniversityChangchun 130026China School of Earth Sciences and Resources China University of GeosciencesBeijing 100083China Institute of Geology Chinese Academy of Geological SciencesBeijing 100037China School of Resources and Environmental Engineering Inner Mongolia University of TechnologyHohhot 010051China Center for Excellence in Comparative Planetology Chinese Academy of SciencesHefei 230026China

A geologic time scale is a chronological system that separates the geological strata of a planetary body into different units in temporal sequence and shows its progressive *** time scale of the Moon was established a half-century ago during the telescopic-early Apollo exploration era,using data with limited spatial coverage and *** past decades have seen a wide array of studies,which have significantly extended our understanding of global lunar geologic *** on a comprehensive review of lunar evolution with respect to the dynamical changes,we propose two major updates to the current lunar time scale paradigm to include the evolution of both endogenic and exogenic dynamic forces now known to have influenced early lunar ***,based on the temporal interplay of exogenic and endogenic processes in altering the Moon,we defined three Eon/Eonothem-level units to represent three dynamical evolutionary ***,the pre-Nectarian System is redefined and divided as the magma ocean-era Magma-oceanian System and the following Aitkenian System beginning with the South Pole-Aitken *** ejecta of this basin,Das Formation,was deposited on the primordial lunar crust as the oldest stratum produced from exogenic *** updated lunar time scale,facilitated by the post-Apollo exploration and research advances,provides an integrated framework to depict the evolution of the Moon and has important implications for the geologic study of other terrestrial planets.

关键词： The Moon Geologic time scale Evolution history Endogenic process Exogenic process

Management of male obesity-related secondary hypogonadism:A clinical update

在线全文

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 11-28页

作者： Mohan T Shenoy Sunetra Mondal Cornelius james Fernandez Joseph M Pappachan Department of Endocrinology Sree Gokulam Medical Collegeand Research FoundationTrivandrum 695607KeralaIndia Department of Endocrinology NRS Medical College and HospitalKolkata 700014West BengalIndia Department of Endocrinology&Metabolism Pilgrim HospitalUnited Lincolnshire Hospitals NHS TrustBoston PE219QSUnited Kingdom Department of Endocrinology and Metabolism Lancashire Teaching Hospitals NHS TrustPreston PR29HTUnited Kingdom Faculty of Science Manchester Metropolitan UniversityManchester M156BHUnited Kingdom Faculty of Biology Medicine&HealthThe University of ManchesterManchester M139PLUnited Kingdom

The global obesity pandemic has resulted in a rise in the prevalence of male obesity-related secondary hypogonadism(MOSH)with emerging evidence on the role of testosterone *** aim to provide an updated and practical approach towards its *** did a comprehensive literature search across MEDLINE(via PubMed),Scopus,and Google Scholar databases using the keywords“MOSH”OR“Obesity-related hypogonadism”OR“Testosterone replacement therapy”OR“Selective estrogen receptor modulator”OR“SERM”OR“Guidelines on male hypogonadism”as well as a manual search of references within the articles.A narrative review based on available evidence,recommendations and their practical implications was *** weight loss is the ideal therapeutic strategy for patients with MOSH,achievement of significant weight reduction is usually difficult with lifestyle changes alone in real-world ***,androgen administration is often necessary in the management of hypogonadism in patients with MOSH which also improves many other comorbidities related to ***,there is conflicting evidence for the appropriate use of testosterone replacement therapy(TRT),and it can also be associated with *** evidence-based review updates the available evidence including the very recently published results of the TRAVERSE trial and provides comprehensive clinical practice pearls for the management of patients with *** starting testosterone replacement in functional hypogonadism of obesity,it would be desirable to initiate lifestyle modification to ensure weight *** should be coupled with the management of other comorbidities related to obesity in MOSH *** the risks and benefits of TRT should be considered in every patient before and during longterm management.

关键词： Male obesity-related secondary hypogonadism Androgen therapy Testosterone replacement therapy Obesity Cardiovascular benefits

Functionalization of cellulose carbon dots with different elements(N,B and S)for mercury ion detection and anti-counterfeit applications

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Chinese Chemical Letters 2024年第7期35卷 355-359页

作者： Xiaoning Li Quanyu Shi Meng Li Ningxin Song Yumeng Xiao Huining Xiao Tony D.james Lei Feng Second Affiliated Hospital of Dalian Medical University Dalian 116023China Hebei Key Lab of Power Plant Flue Gas Multi-Pollutants Control Department of Environmental Science and EngineeringNorth China Electric Power UniversityBaoding 071003China Department of Chemical Engineering and Limerick Pulp&Paper Centre University of New Brunswick15 Dineen DriveFredericton NB E3B 5A3Canada Department of Chemistry University of BathBath BA27AYUnited Kingdom School of Chemistry and Chemical Engineering Henan Normal UniversityXinxiang 453007China

Mercury ion(Hg^(2+)),as one of the most toxic heavy metal ions,accumulates easily in the environment,which can generate potential hazards to the ecosystem and human *** effectively detect and remove Hg^(2+),we fabricated four types of carbon dots(CDs)using carboxymethyl nanocellulose as a carbon source doped with different elements using a hydrothermal *** the CDs exhibited a strong fluorescence emission,excitation-dependent emission and possessed good water ***,the four fluorescent CDs were used for Hg^(2+)recognition in aqueous solution,where the CDs-N exhibited better sensitivity and selectivity for Hg^(2+)detection,with a low limit of detection of 8.29×10^(-6)mol/*** was determined that the fluorescence quenching could be ascribed to a photoinduced charge-transfer processes between Hg^(2+)and the *** addition,the CDs-N were used as a smart invisible ink for anticounterfeiting,information encryption and ***,the CDs-N were immersed into a cellulose(CMC)-based hydrogel network to prepare fluorescent hydrogels capable of simultaneously detecting and adsorbing Hg^(2+).We anticipate that this research will open possibilities for a green method to synthesize fluorescent CDs for metal ion detection and fluorescent ink production.

关键词： Carbon dots Functional groups Hg^(2+)detection Mechanism Anti-counterfeiting

Enhancing Human Action Recognition with Adaptive Hybrid Deep Attentive Networks and Archerfish Optimization

在线全文

学校读者我要写书评

暂无评论

Computers, Materials & Continua 2024年第9期80卷 4791-4812页

作者： Ahmad Yahiya Ahmad Bani Ahmad Jafar Alzubi Sophers james Vincent Omollo Nyangaresi Chanthirasekaran Kutralakani Anguraju Krishnan Department of Accounting and Finance Faculty of BusinessMiddle East UniversityAmman11831Jordan Faculty of Engineering Al-Balqa Applied UniversitySalt19117Jordan Department of Mathematics Kongunadu College of Engineering and Technology(Autonomous)TholurpattiTrichy621215India Department of Computer Science and Software Engineering Jaramogi Oginga Odinga University of Science and TechnologyBondo210-40601Kenya Department of Electronics and Communication Engineering Saveetha School of EngineeringSaveetha Institute of Medical and Technical SciencesChennai602105India Department of Electronics and Communication Engineering Saveetha Engineering College(Autonomous)Chennai602105India Department of Computer Science and Engineering Kongunadu College of Engineering and Technology(Autonomous)TholurpattiTrichy621215India

In recent years,wearable devices-based Human Activity Recognition(HAR)models have received significant *** developed HAR models use hand-crafted features to recognize human activities,leading to the extraction of basic *** images captured by wearable sensors contain advanced features,allowing them to be analyzed by deep learning algorithms to enhance the detection and recognition of human *** lighting and limited sensor capabilities can impact data quality,making the recognition of human actions a challenging *** unimodal-based HAR approaches are not suitable in a real-time ***,an updated HAR model is developed using multiple types of data and an advanced deep-learning ***,the required signals and sensor data are accumulated from the standard *** these signals,the wave features are *** the extracted wave features and sensor data are given as the input to recognize the human *** Adaptive Hybrid Deep Attentive Network(AHDAN)is developed by incorporating a“1D Convolutional Neural Network(1DCNN)”with a“Gated Recurrent Unit(GRU)”for the human activity recognition ***,the Enhanced Archerfish Hunting Optimizer(EAHO)is suggested to fine-tune the network parameters for enhancing the recognition *** experimental evaluation is performed on various deep learning networks and heuristic algorithms to confirm the effectiveness of the proposed HAR *** EAHO-based HAR model outperforms traditional deep learning networks with an accuracy of 95.36,95.25 for recall,95.48 for specificity,and 95.47 for precision,*** result proved that the developed model is effective in recognizing human action by taking less ***,it reduces the computation complexity and overfitting issue through using an optimization approach.

关键词： Human action recognition multi-modal sensor data and signals adaptive hybrid deep attentive network enhanced archerfish hunting optimizer 1D convolutional neural network gated recurrent units

Risk factors for hepatocellular carcinoma associated with hepatitis C genotype 3 infection:A systematic review

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 Gastrointestinal Oncology 2024年第4期16卷 1596-1612页

作者： Hamzah Z Farooq Michael james Jane Abbott Patrick Oyibo Pip Divall Naheed Choudhry Graham R Foster Blizard Institute Queen Mary University of LondonLondon E12ATUnited Kingdom School of Health and Psychological Sciences University of LondonLondon EC1V 0HBUnited Kingdom University Hospitals of Leicester Library University Hospitals of Leicester NHS TrustLeicester LE39QPUnited Kingdom

BACKGROUND Hepatitis C virus(HCV)is a blood-borne virus which globally affects around 79 million people and is associated with high morbidity and *** infection leads to cirrhosis in a large proportion of patients and often causes hepatocellular carcinoma(HCC)in people with *** the 6 HCV genotypes(G1-G6),genotype-3 accounts for 17.9%of *** genotype-3 responds least well to directly-acting antivirals and patients with genotype-3 infection are at increased risk of HCC even if they do not have *** To systematically review and critically appraise all risk factors for HCC secondary to HCV-G3 in all ***,we studied possible risk factors for HCC due to HCV-G3 in the literature from 1946 to *** This systematic review aimed to synthesise existing and published studies of risk factors for HCC secondary to HCV genotype-3 and evaluate their strengths and *** searched Web of Science,Medline,EMBASE,and CENTRAL for publications reporting risk factors for HCC due to HCV genotype-3 in all settings,*** Four thousand one hundred and forty-four records were identified from the four databases with 260 records removed as *** thousand eight hundred and eighty-four records were screened with 3514 *** hundred and seventy-one full-texts were assessed for eligibility with seven studies included for *** the seven studies,three studies were retrospective case-control trials,two retrospective cohort studies,one a prospective cohort study and one a cross-sectional study *** were based in hospital settings with four in Pakistan,two in South Korea and one in the United *** total number of participants were 9621 of which 167 developed HCC(1.7%).All seven studies found cirrhosis to be a risk factor for HCC secondary to HCV genotype-3 followed by higher age(five-studies),with two studies each showing male sex,high alpha feto-protein,directly-acting antivirals trea

关键词： Hepatocellular carcinoma Hepatitis C Genotype 3 Systematic review Blood-borne viruses Liver cancer

Symptom presentation and evolution in the first 48 hours after injury are associated with return to play after concussion in elite Rugby Union

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 Sport and Health Science 2024年第3期13卷 387-397页

作者： Ross Tucker Matt Cross Keith Stokes Lindsay Starling Rosy Hyman Simon Kemp Stephen West Martin Raftery Eanna Falvey james Brown Institute of Sport and Exercise Medicine(ISEM) Department of ExerciseUniversity of StellenboschTygerberg 7505South Africa World Rugby Ltd. Dublin D02 AE93Ireland Premiership Rugby London SW1V 1PXUK Centre for Health and Injury and Illness Prevention in SportUniversity of BathClaverton Down BA27AYUK UK Collaborating Centre on Injury and Illness Prevention in Sport(UKCCIIS) University of BathClaverton Down BA27AYUK Rugby Football Union London TW27BAUK London School of Tropical Medicine London WC1E 7HTUK Sport Injury Prevention Research Centre Faculty of KinesiologyUniversity of CalgaryCalgary T2N 1N4Canada Department of Medicine School of Medicine and HealthUniversity College CorkCork T12 EC8PIreland Carnegie Applied Rugby Research(CARR)centre Carnegie School of SportLeeds Beckett UniversityLeeds LS63QSUK

Background:Return to play(RTP)in elite rugby is managed using a 6-stage graduated RTP protocol,which can result in clearance to play within 1 week of *** aimed to explore how symptom,cognitive,and balance presentation and evolution during concussion screens 2 h(head injury assessment(HIA2)and 48 h(HIA3)after injury were associated with time to RTP)to identify whether a more conservative graduated RTP may be ***:A retrospective cohort study was conducted in 380 concussed rugby players from elite men’s rugby over 3 consecutive *** were classified as shorter or longer returns,depending on whether RTP occurred within 7 days(allowing them to be considered to play the match 1 week after injury)or longer than 8 days,***,cognitive,and balance performance during screens was assessed relative to baseline(normal or abnormal)and to the preceding screen(improving or worsening).Associations between sub-test abnormalities and RTP time were explored using odds ratios(OR,longer ***).Median day absence was compared between players with abnormal or worsening results and those whose results were normal or ***:Abnormal symptom results during screens 2 h and 48 h after concussion were associated with longer return time(HIA2:OR=2.21,95%confidence interval(95%CI):1.39-3.50;HIA3:OR=3.30,95%CI:1.89-5.75).Worsening symptom number or severity from the time of injury to 2 h and 48 h post-injury was associated with longer return(HIA2:OR=2.49,95%CI:1.36-4.58;HIA3:OR=3.34,95%CI:1.10-10.15).Median days absence was greater in players with abnormal symptom results at both HIA2 and *** and balance performance were not associated with longer return and did not affect median days ***:Symptom presentation and evolution within 48 h of concussion were associated with longer RTP *** may guide a more conservative approach to RTP,while still adhering to individualized concussion management principles.

关键词： Brain injury Concussion management General return to play Medical management

Remote sensing of quality traits in cereal and arable production systems:A review

在线全文

学校读者我要写书评

暂无评论

The Crop Journal 2024年第1期12卷 45-57页

作者： Zhenhai Li Chengzhi Fan Yu Zhao Xiuliang Jin Raffaele Casa Wenjiang Huang Xiaoyu Song Gerald Blasch Guijun Yang james Taylor Zhenhong Li College of Geodesy and Geomatics Shandong University of Science and TechnologyQingdao 266590ShandongChina Key Laboratory of Quantitative Remote Sensing in Ministry of Agriculture and Rural Affairs Information Technology Research CenterBeijing Academy of Agriculture and Forestry SciencesBeijing 100097China Institute of Crop Sciences Chinese Academy of Agricultural Sciences/Key Laboratory of Crop Physiology and EcologyMinistry of Agriculture and Rural AffairsBeijing 100081China DAFNE Universitàdella TusciaVia San Camillo de Lellis01100 ViterboItaly Key Laboratory of Digital Earth Science Aerospace Information Research InstituteChinese Academy of SciencesBeijing 100094China International Maize and Wheat Improvement Center(CIMMYT) PO Box 5689Addis AbabaEthiopia ITAP Univ.MontpellierINRAEInstitut AgroMontpellier 34000France College of Geological Engineering and Geomatics Chang’an UniversityXi’an 710054ShaanxiChina

Cereal is an essential source of calories and protein for the global *** predicting cereal quality before harvest is highly desirable in order to optimise management for farmers,grading harvest and categorised storage for enterprises,future trading prices,and policy *** use of remote sensing data with extensive spatial coverage demonstrates some potential in predicting crop quality *** studies have also proposed models and methods for predicting such traits based on multiplatform remote sensing *** this paper,the key quality traits that are of interest to producers and consumers are *** literature related to grain quality prediction was analyzed in detail,and a review was conducted on remote sensing platforms,commonly used methods,potential gaps,and future trends in crop quality *** review recommends new research directions that go beyond the traditional methods and discusses grain quality retrieval and the associated challenges from the perspective of remote sensing data.

关键词： Remote sensing Quality traits Grain protein Cereal

Sodium glucose cotransporter-2 inhibitors and heart disease:Current perspectives

在线全文

学校读者我要写书评

暂无评论

World Journal of Cardiology 2024年第5期16卷 240-259页

作者： Sunetra Mondal Subhodip Pramanik Vibhu Ranjan Khare Cornelius james Fernandez Joseph M Pappachan Department of Endocrinology NRS Medical CollegeKolkata 700020West BengalIndia Department of Endocrinology Neotia Getwel Multispecialty HospitalsSiliguri 734010West BengalIndia Department of Endocrinology and Metabolism Pilgrim HospitalUnited Lincolnshire Hospitals NHS TrustBoston PE219QSUnited Kingdom Department of Endocrinology and Metabolism Lancashire Teaching Hospitals NHS TrustPreston PR29HTUnited Kingdom Faculty of Science Manchester Metropolitan UniversityManchester M156BHUnited Kingdom Faculty of Biology Medicine&HealthThe University of ManchesterManchester M139PLUnited Kingdom

Sodium glucose cotransporter-2 inhibitors(SGLT-2i)are antidiabetic medications with remarkable cardiovascular(CV)benefits proven by multiple randomised controlled trials and real-world *** drugs are also useful in the prevention of CV disease(CVD)in patients with diabetes mellitus(DM).Although DM as such is a huge risk factor for CVD,the CV benefits of SGLT-2i are not just because of antidiabetic *** molecules have proven beneficial roles in prevention and management of nondiabetic CVD and renal disease as *** are various molecular mechanisms for the organ protective effects of SGLT-2i which are still being *** understanding of the role of SGLT-2i in prevention and management of CVD is important not only for the cardiologists but also for other specialists caring for various illnesses which can directly or indirectly impact care of heart *** clinical review compiles the current evidence on the rational use of SGLT-2i in clinical practice.

关键词： SGLT2 inhibitors SGLT2i Cardiovascular disease Heart failure Atherosclerotic cardiovascular disease Diabetic kidney disease