检索结果-南通市图书馆

“When you’re down, stay down”:A lesson for all competitive alpine skiers supported by an ACL rupture measured in vivo

引用

Journal of Sport and Health Science 2022年第1期11卷 14-20页

作者： Jörg Spöorri Erich Müller Josef kröoll Sports Medical Research Group Department of OrthopaedicsBalgrist University HospitalUniversity of ZurichZurich 8008Switzerland University Centre for Prevention and Sports Medicine Department of OrthopaedicsBalgrist University HospitalUniversity of ZurichZurich 8008Switzerland Department of Sport Science and Kinesiology University of SalzburgHallein-Ri 5400Austria

Background:During an experiment,a ski racer equipped with various measurement devices suffered an anterior cruciate ligament(ACL)rupture in his right *** aim of this study was to describe the underlying injury mechanism from a functional ***:Eight giant slalom turns(i.e.,4 left turns),followed by 1 left turn at which the ACL injury occurred,were recorded by 2 video cameras,electromyography of 4 relevant muscle groups,inertial measurement units to measure knee and hip angles,and pressure insoles to determine ground reaction ***:Due to a loss of balance,the ski racer began to slide sideways at the apex of a left *** sliding,his right(outside)leg was actively abducted upward without touching the *** ski racer then attempted to stand up again by dropping his leg back towards the snow *** end of this dropping was accompanied by a decrease in electromyographic activity in the knee stabilizing *** the inside edge of the outer ski caught the snow surface,a rapidly increasing peak force,knee flexion,and an aggressive sudden activation of the vastus medialis muscle were observed,while biceps femoris and rectus femoris further decreased their activation *** likely resulted in excessive anterior translation of the tibia relative to the femur,causing damage to the ***:Our example emphasizes that ski racers should not get up until they stop ***:“When you’re down,stay down.”

关键词： Alpine skiing Athletes Injury mechanism Injury prevention Knee injuries

来源：

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

Intra-protein interactions of SARS-CoV-2 and SARS:a bioinformatic analysis for plausible explanation regarding stability,divergency,and severity

引用

Systems Microbiology and Biomanufacturing 2022年第4期2卷 653-664页

作者： Debanjan Mitra Aditya K.Pal Pradeep kr.Das Mohapatra Department of Microbiology Raiganj UniversityRaiganjWBIndia

The current nightmare for the whole world is *** occurrence of concentrated pneumonia cases in Wuhan city,Hubei province of China,was first reported on December 30,***-CoV first disclosed in 2002 but had not outspread *** 18 years,in 2020,it reemerged and outspread worldwide as SARS-CoV-2(COVID-19),as the most dangerous virus-creating disease in the *** it possible to create a favorable evolution within the short time(18 years)?If possible,then what are those properties or factors that are changed in SARS-CoV-2 to make it undefeated?What are the fundamental differences between SARS-CoV-2 and SARS?The study is one of the initiatives to find out all those ***,four types of protein sequences from SARS-CoV-2 and SARS were retrieved from the database to study their physicochemical and structural *** showed that charged residues are playing a pivotal role in SARS-CoV-2 evolution and contribute to the helix *** formation of the cyclic salt bridge and other intra-protein interactions specially network aromatic-aromatic interaction also play the crucial role in *** comparative study will help to understand the evolution from SARS to SARS-CoV-2 and helpful in protein engineering.

关键词： COVID-19 Evolution Cyclic salt bridge Intra-protein interactions Protein engineering

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Vitamin C and E supplementation and high intensity interval training induced changes in lipid profile and haematological variables of young males

引用

Sports Medicine and Health Science 2023年第2期5卷 137-145页

作者： Surojit Sarkar Swapan kr Dey Gouriprosad Datta Amit Bandyopadhyay Department of Physiology Rammohan College1021Raja Ram Mohan SaraniBaithakkhanaKolkata700009West BengalIndia Department of Sports Science University of CalcuttaUniversity Colleges of Science and Technology92A.P.C.RoadKolkata700009West BengalIndia Sports and Exercise Physiology Laboratory Department of PhysiologyUniversity of CalcuttaUniversity Colleges of Science and Technology92A.P.C.RoadKolkata700009West BengalIndia

High intensity interval training(HIIT)causes oxidative stress and haematological *** study was aimed to evaluate the effect of 8 weeks’supplementation of vitamin C and E on HIIT induced changes in lipid profile parameters and haematological *** six male adolescent players were randomly assigned into five age-matched groups,i.e.,Control(no exercise+placebo),HIIT(placebo),HIIT+vitamin-C(1000mg/day),HIIT+vitamin-E 400 IU/day)and combined HIIT+vitamin C and *** and evening sessions(90min)of HIIT included 4 phases(15min each)with 3 sets(4min each).Each 4min HIIT set consisted of 2min intense sprint workout(90%–95%of heart rate maximum[HRmax])followed by 1min active recovery(60%–70%HRmax)followed by 1min of complete rest(1:1 work-rest ratio).Lipid profile parameters,haematological variables,endurance capacity and vertical jump were evaluated by standard *** decrease in body weight,fat%,total cholesterol,triglyceride,Total Cholesterol/High Density Lipoprotein-Cholesterol and significant increase in High Density Lipoprotein-Cholesterol,maximal oxygen consumption,vertical jump were observed for all four intervention *** blood cell count,red blood cell count,haemoglobin percentage and haematocrit values were significantly decreased while platelet count and platelet-to-leukocyte ratio(PLR)ratio were increased significantly only for HIIT *** level of tocopherol and ascorbic acid was significantly increased(values were within the normal range)in all the respective vitamin supplemented *** of vitamin C and E secures health protection with suppressed haemolysis and improved inflammatory blood variables with enhanced explosive leg strength and lipid profile parameters without any concomitant change in endurance capacity.

关键词： Sprint interval training Lipid profile Haematological indices Haemolysis Athletes

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

一种自动驾驶电动汽车线束布局优化方法

引用

同济大学学报（自然科学版） 2022年第S1期50卷 186-191页

作者： Jonas MAIER Benjamin krüGER Hans-Christian REUSS 斯图加特大学汽车工程学院(IFS) 德国斯图加特70569

近年来,随着汽车自动驾驶、数字化、电动化技术的不断发展,汽车的功能不断增加,车辆内部线束也随之增加。由于过多的线束导致车辆自重增加的问题日益突出。为了实现能源的高效利用和出行方式的可持续性,开发人员需要通过优化线束布置来... 详细信息

近年来,随着汽车自动驾驶、数字化、电动化技术的不断发展,汽车的功能不断增加,车辆内部线束也随之增加。由于过多的线束导致车辆自重增加的问题日益突出。为了实现能源的高效利用和出行方式的可持续性,开发人员需要通过优化线束布置来尽可能多的减轻车辆自重,同时降低成本。由于与线束相连的车辆零件位置固定,因此需要一个算法在车辆零件位置为限制条件下,优化车辆线束布局。之前的研究方法通常只考虑线束设计的部分限制因素,且没有考虑线束三维结构。在本文研究中,开发了一种新型的优化线束布局的方法,该方法考虑了与包装,温度负载以及装配难易相关的各种限制因素。该方法可以根据设计需求来控制线束布置方法,如在沿着车辆纵轴方向布置更多线束,以避免在车辆外围布置线束。通过该方法,可以高效地计算出线束长度、直径,以及精确的布线路径。

关键词：电动汽车汽车线束布线优化 Dijkstra算法

来源：

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

Automatic route planning for GPS art generation

引用

Computational Visual Media 2019年第3期5卷 303-310页

作者： Andre Waschk Jens krüger University of Duisburg-Essen

In this paper, we present a novel approach to automated route generation of global positioning system(GPS) artwork. The term GPS artwork describes the generation of drawings by leaving virtual traces on digital maps. Until now, the creation of these images has required a manual planning phase in which an artist designs the route by hand. Once the route for this artwork has been planned, GPS devices have been used to track the movement. Using our solution, the lengthy planning phase can be significantly shortened,thereby opening art creation to a broader public.

关键词： GPS art walking routing shape detection navigation

来源：

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

前寒武纪板块构造(续上期)

引用

国外前寒武纪地质 1983年第1期 104-111页

作者： a.krNER 闻桂芹

下元古宙(25-12亿年)虽然有关推测太古宙构造方面的资料很多,但是关于25亿和12亿年之间下元古宙地壳演化资料却很少。尤其25亿和22亿年之间这一时期明显缺少全球性构造—热活动或造山运动,看来好象是以巨大沉积盆地的形成为特征,其中一... 详细信息

下元古宙(25-12亿年)虽然有关推测太古宙构造方面的资料很多,但是关于25亿和12亿年之间下元古宙地壳演化资料却很少。尤其25亿和22亿年之间这一时期明显缺少全球性构造—热活动或造山运动,看来好象是以巨大沉积盆地的形成为特征,其中一些是在稳定大陆壳上发展的(例如卡普瓦尔克拉通的威特沃特斯兰—文特斯多普盆地,西澳大利亚的福特斯库—哈默斯利盆地),而其余的盆地开始与显生宙板块边缘或“地槽”型层序相类似(例如西非

关键词：板块构造威尔逊旋回蛇绿岩大地构造超基性岩前古生代前寒武纪元古宙

来源：

同方期刊数据库评论

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

Bifacial Solar Cells on Multi-crystalline Silicon

Bifacial Solar Cells on Multi-crystalline Silicon

引用

第十五届国际光伏科学与工程大会

作者： a.krnzl R.Kopecek B.Terheiden P.Fath University of Konstanz Faculty of SciencesDepartment of PhysicsJakob-Burckhardt-Str.2778464 KonstanzGermany

In this work we present two different approaches for a bifacial solar cell on me silicon, the first (npp-device) with a phosphorous emitter on the front side, a boron Back Surface Field (BSF) and an open rear contact. The best solar cell processed so far with this structure (100x100 mm p-type mc-Si wafer,～200μm thickness) had an efficiency of η=15.4 % and η=10.2 % under back side illumination. The second solar cell concept (npn-device) has a double sided emitter, which is connected via laser drilled holes (by a Nd:YaG laser), similar to the Emitter Wrap Through (EWT) solar cell. The first prototypes of this concept reached an efficiency of 11.5% on Cz-Si material (5.3% under back side illumination).

关键词：

来源： cnki会议评论

在线全文

cnki会议

学校读者我要写书评

暂无评论

Neuromuscular,biomechanical,and energetic adjustments following repeated bouts of downhill running

引用

Journal of Sport and Health Science 2022年第3期11卷 319-329页

作者： Arash Khassetarash Gianluca Vernillo Renata L.krüger W.Brent Edwards Guillaume Y.Millet Human Performance Laboratory Faculty of KinesiologyUniversity of CalgaryCalgary T2N 1N4Canada Department of Biomedical Sciences for Health University of MilanMilan 20133Italy Inter-university Laboratory of Human Movement Biology UJM-Saint-EtienneUniversitéde LyonSaint-Etienne 42023France Institut Universitaire de France(IUF) Paris 75231France

Purpose This study used downhill running as a model to investigate the repeated bout effect(RBE)on neuromuscular performance,running biomechanics,and metabolic cost of *** Ten healthy recreational male runners performed two 30-min bouts of downhill running(DR1 and DR2)at a-20%slope and 2.8 m/s 3 weeks *** fatigue,level running biomechanics during slow and fast running,and running economy parameters were recorded immediately before and after the downhill bouts,and at 24 h,48 h,72 h,96 h,and 168 h thereafter(i.e.,follow-up days).Results An RBE was confirmed by attenuated muscle soreness and serum creatine kinase rise after DR2 compared to *** RBE was also observed in maximum voluntary contraction(MVC)force loss and voluntary activation where DR2 resulted in attenuated MVC force loss and voluntary activation immediately after the run and during follow-up *** downhill running protocol significantly influenced level running biomechanics;an RBE was observed in which center of mass excursion and,therefore,lower-extremity compliance were greater during follow-up days after DR1 compared to *** observed changes in level running biomechanics did not influence the energy cost of *** This study demonstrated evidence of adaptation in neural drive as well as biomechanical changes with the RBE after *** higher neural drive resulted in attenuated MVC force loss after the second *** can be concluded that the RBE after downhill running manifests as changes to global and central fatigue parameters and running biomechanics without substantially altering the energy cost of running.

关键词： Cost of running Eccentric exercise Fatigue Muscle damage

来源：

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

Chemistry-led investigations into the mode of action of NAMPT activators,resulting in the discovery of non-pyridyl class NAMPT activators

引用

Acta Pharmaceutica Sinica B 2023年第2期13卷 709-721页

作者： Siyuan Tang Miguel Garzon Sanz Oliver Smith Andreas krämer Daniel Egbase Paul W.Caton Stefan Knapp Sam Butterworth Division of Pharmacy and Optometry School of Health SciencesManchester Academic Health Sciences CentreUniversity of ManchesterManchester M139PLUK Structural Genomics Consortium(SGC) 60438 Frankfurt Am MainGermany Buchmann Institute for Life Sciences(BMLS) 60438 Frankfurt Am MainGermany Institut für Pharmazeutische Chemie Goethe University60438 Frankfurt Am MainGermany Frankfurt Cancer Institute(FCI) 60596 Frankfurt Am MainGermany Department of Diabetes School of Cardiovascular and Metabolic Medicine&SciencesFaculty of Life Sciences&MedicineKing's College LondonLondon SE11ULUK

The cofactor nicotinamide adenine dinucleotide(NAD+)plays a key role in a wide range of physiological processes and maintaining or enhancing NAD+levels is an established approach to enhancing healthy ***,several classes of nicotinamide phosphoribosyl transferase(NAMPT)activators have been shown to increase NAD+levels in vitro and in vivo and to demonstrate beneficial effects in animal *** best validated of these compounds are structurally related to known urea-type NAMPT inhibitors,however the basis for the switch from inhibitory activity to activation is not well *** we report an evaluation of the structure activity relationships of NAMPT activators by designing,synthesising and testing compounds from other NAMPT ligand chemotypes and mimetics of putative phosphoribosylated adducts of known *** results of these studies led us to hypothesise that these activators act via a through-water interaction in the NAMPT active site,resulting in the design of the first known urea-class NAMPT activator that does not utilise a pyridine-like warhead,which shows similar or greater activity as a NAMPT activator in biochemical and cellular assays relative to known analogues.

关键词： Nicotinamide phosphoribosyl transferase activator Healthy aging Drug discovery Bioisosteres Medicinal chemistry

来源：

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

Geological and Morphological Features of the Karapinar Sinkholes(Konya， Central Anatolia， Türk?ye)

引用

Journal of Earth Science 2023年

作者： Ya?ar EREN ?eyda PARLAR Berkant CO?KUNER ?ükrü ARSLAN Prime Ministry Disaster And Emergency Management Authority Konya Provincial Directorate of Disaster and Emergency Department of Geological Engineering Faculty of Engineering and Natural Sciences Konya Technical University

Karap?nar region (Konya， Turkey) is one of the important regions of the world in terms of sinkhole formations. The research aimed to map the sinkholes in detail， to determine their spatial distribution and geometrical parameters. For this purpose， the long axes， short axes， depths and the proximity to settlements of the sinkholes were measured and their circumferences and areas were calculated. During the studies， the relationship of the sinkholes with lithology， their cross sections， shapes and the related structures were determined and the sinkholes were divided into five main groups as following; Basement rock sinkholes， Obruk Plateau sinkholes， Seyithac? sinkholes， Siyeklik sinkholes and Basin sinkholes. The d/l ratios of each sinkhole group were separately determined and interpreted. Accordingly， most of the d/l ratios are small than 0.2. Namely， the long axes are higher than the depth and it indicates that the shallow and wide sinkholes are common in the region. It has been determined that the fracture systems in the region， as well as the lithology and groundwater factors， are quite effective in the formation and distribution of the sinkholes in the Karap?nar region. Considering the distance of the sinkholes to the settlements， Seyithac? sinkholes are the most risky group in the region because they are deep and close to the settlements.

关键词：

来源：

同方期刊数据库评论

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：