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models to predict injury, physical fitness failure and attrition in recruit training: a retrospective cohort study

military medical Research 2020年第4期7卷 391-400页

作者： robin m.orr Bruce S.Cohen Stephen C.Allison Lakmini Bulathsinhala Edward J.Zambraski mark Jaffrey Tactical Research Unit Bond University2 Promethean WayGold CoastRobinaQLD 4226Australia United States Army Research Institute for Environmental medicine NatickMA 01760USA Defence Science and Technology Group Port MelbourneVIC 3207Australia

Background:Attrition rate in new army recruits is higher than in incumbent *** the current study,we identified the risk factors for attrition due to injuries and physical fitness failure in recruit training.A variety of predictive models were ***:This retrospective cohort included 19,769 Army soldiers of the Australian Defence Force receiving recruit training during a period from 2006 to *** them,7692 reserve soldiers received a 28-day training course,and the remaining 12,077 full-time soldiers received an 80-day training *** data included anthropometric measures,course-specific variables,injury,and physical fitness *** regression was used to develop a variety of models to predict the rate of attrition due to injuries and physical fitness *** area under the receiver operating characteristic curve was used to compare the performance of the ***:In the overall analysis that included both the 28-day and 80-day courses,the incidence of injury of any type was 27.8%.The 80-day course had a higher rate of injury if calculated per course(34.3%vs.17.6%in the 28-day course),but lower number of injuries per person-year(1.56 vs.2.29).Fitness test failure rate was significantly higher in the 28-day course(30.0%vs.12.1%).The overall attrition rate was 5.2%and 5.0%in the 28-day and 80-day courses,*** fracture was common in the 80-day course(n=44)and rare in the 28-day course(n=1).The areas under the receiver operating characteristic curves for the course-specific predictive models were relatively low(ranging from 0.51 to 0.69),consistent with"failed"to"poor"predictive *** course-combined models performed somewhat better than the course-specific models,with two models having AUC of 0.70 and 0.78,which are considered"fair"predictive ***:Attrition rate was similar between 28-day and 80-day *** comparison to the 80-day full course,the 28-day course had a lower rat

关键词： military training Predictive modelling Risk management Soldier

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Relationship Between metabolic Fitness and Performance in Police Occupational Tasks

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Journal of Science in Sport and Exercise 2021年第2期3卷 179-185页

作者： Elisa F.D.Canetti J.Jay Dawes Phoebe H.Drysdale Robert Lockie Charlie Kornhauser Ryan Holmes Ben Schram robin m.orr Faculty of Health Sciences and medicine Bond Institute of Health and SportBond University2 Promethean WayGold CoastQLD 4226Australia Tactical Research Unit Bond UniversityGold CoastQLD 4226Australia School of Kinesiology Applied Health and RecreationOklahoma State University183 Colvin Recreation CenterStillwaterOK 74078USA California State Fullerton 800 N.State College BlvdFullertonCA 92831-3599USA Colorado State Patrol LakewoodCOUSA

Purpose To determine the relationship between metabolic fitness test scores and performance in police occupational *** Retrospective data from 106 law enforcement officers who completed two metabolic fitness assessments[anaerobic:a 20-m (10-m and 20-m splits) sprint,aerobic:20 m multi-Stage Fitness Test (20 m-mSFT)]and three routine occupational tasks[1.22 m Fence jump (FJ),8.5 m Victim Drag (VD with 102.3 kg) and "Get-up" (GU)]were collected.A Person's cor-relation coefficient and a standard multiple regression were used to assess the relationship between and predictive ability of,respectively,the fitness tests scores and performance on occupational *** There was a significant positive correlation between the 10-m sprint scores and FJ (r=0.524,Pmilarly,the 20-m sprint scores were significantly and moderately correlated with FJ (r=0.573,P mately 40% of the performance in the occupational tasks *** mSFT fitness assessment had a small,albeit significant negative correlation with the three tasks:FJ (r=-0.360,Pmetabolic fitness correlated with faster performance in police officer occupational tasks,particu-larly ones of an anaerobic nature (*** maximal sprint tests).In addition to typical aerobic fitness conditioning,anaerobic fitness conditioning could be vital for optimal performance in physically demanding tasks required of police officer.

关键词： Police Occupational health Physical fitness Work performance Rehabilitation

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Associations Between Two measures of Trunk muscular Endurance Among male Law Enforcement Officers

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Journal of Science in Sport and Exercise 2021年第4期3卷 374-378页

作者： J.Jay Dawes Cody A.Stahl Robert G.Lockie Jan E.Redmond Charles L.Kornhauser Ryan J.Holmes robin m.orr Oklahoma State University StillwaterOK74078USA

Purpose The purpose of this study was to explore the relationship between two measures of trunk muscular *** Retrospective data for 520 male law enforcement officers(age 40.16±7.71 years;height=1.81±0.07 m;body mass=94.4±15.01 kg)belonging to a single US based law enforcement agency were used for this *** data provided included:age,height,body mass,sit-up repetitions completed in 1-min(SU)and time to completion for the isometric prone plank(IPP).A Pearson’s product correlation coefficient was used to determine the relationships between the SU and *** Significant(Pmoderate(r=0.594,R^(2)=0.352)relationships were discovered between the SU and *** Based on the results of this study it appears that both the SU and IPP tests are appropriate for evaluating trunk muscular endurance,but measure separate qualities(i.e.,dynamic and static muscular endurance).

关键词： Sit-ups Planks Police Tactical Fitness testing

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Analyzing voting power in decentralized governance:Who controls DAOs?

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Blockchain(Research and Applications) 2024年第3期5卷 123-129页

作者： robin Fritsch marino müller Roger Wattenhofer ETH Zurich 8092ZurichSwitzerland

We empirically study the state of three prominent DAO governance systems on the Ethereum blockchain:Compound,Uniswap and Ethereum name service(ENS).In particular,we examine how the voting power is distributed in these *** a comprehensive dataset of all governance token holders,delegates,propos-als,and votes,we analyze who holds the voting power and how this power is being used to influence governance *** we reveal that the majority of voting power is concentrated in the hands of a small number of addresses,we rarely observe these powerful entities overturning a vote by choosing a different outcome than that of the overall community and less influential voters.

关键词： Decentralized autonomous organization DAO governance Liquid democracy Blockchain

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Correction to:Associations Between Two measures of Trunk muscular Endurance Among male Law Enforcement Officers

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Journal of Science in Sport and Exercise 2022年第2期4卷 194-194页

作者： J.Jay Dawes Cody A.Stahl Robert G.Lockie Jan E.Redmond Charlie Kornhauser Ryan J.Holmes robin m.orr School of Kinesiology Applied Health and RecreationOklahoma State UniversityStillwaterOKUSA Tactical Fitness and Nutrition Laboratory Oklahoma State UniversityStillwaterOKUSA Department of Kinesiology California State UniversityFullertonFullertonCAUSA United States Army Research Institute of Environmental medicine NatickMAUSA Colorado State Patrol GoldenCOUSA Tactical Research Unit Bond UniversityRobinaQLDAustralia

The original version of this article,published on August 7,2020,contained a *** affiliations were *** correct affiliations of the authors are given below.

关键词： Trunk correct mistake

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Chalcogenide Ovonic Threshold Switching Selector

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Nano-micro Letters 2024年第5期16卷 1-40页

作者： Zihao Zhao Sergiu Clima Daniele Garbin robin Degraeve Geoffrey Pourtois Zhitang Song min Zhu National Key Laboratory of materials for Integrated Circuits Shanghai Institute of Microsystem and Information TechnologyChinese Academy of SciencesShanghai 200050People’s Republic of China University of Chinese Academy of Sciences Beijing 100029People’s Republic of China ImEC Kapedreef 75LeuvenBelgium

Today’s explosion of data urgently requires memory technologies capable of storing large volumes of data in shorter time frames,a feat unattain-able with Flash or *** Optane,commonly referred to as three-dimensional phase change memory,stands out as one of the most promising *** Optane with cross-point architecture is constructed through layering a storage element and a selector known as the ovonic threshold switch(OTS).The OTS device,which employs chalcogenide film,has thereby gathered increased attention in recent *** this paper,we begin by providing a brief introduction to the discovery process of the OTS ***,we summarize the key elec-trical parameters of OTS devices and delve into recent explorations of OTS materials,which are categorized as Se-based,Te-based,and S-based material ***,we discuss various models for the OTS switching mechanism,including field-induced nucleation model,as well as several carrier injection ***,we review the progress and innovations in OTS mechanism ***,we highlight the successful application of OTS devices in three-dimensional high-density memory and offer insights into their promising performance and extensive prospects in emerging applications,such as self-selecting memory and neuromorphic computing.

关键词： Non-volatile memory Ovonic threshold switch(OTS) Chalcogenide Selector

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Potential of photodynamic therapy in the management of infectious oral diseases

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World Journal of Experimental medicine 2024年第1期14卷 1-5页

作者： Cinzia Casu Germano orrù Department of Surgical Science Oral Biotechnology LaboratoryUniversity of CagliariCagliari 09124Italy

Photodynamic therapy(PDT)can take place in the presence of three elements:Light with an appropriate wavelength;a photosensitizer;and the presence of *** type of treatment is very effective overall against bacterial,viral and mycotic *** the last 10 years many papers have been published on PDT with different types of photosensitizers(e.g.,methylene blue,toluidine blue,indocyanine green,curcumin-based photosensitizers),different wavelengths(e.g.,460 nm,630 nm,660 nm,810 nm)and various parameters(e.g.,power of the light,time of illumination,number of sessions).In the scientific literature all types of PDT seem very effective,even if it is difficult to find a standard protocol for each oral *** could be an interesting way to treat some dangerous oral infections refractory to common pharmacological therapies,such as candidiasis from multidrug-resistant Candida spp.

关键词： Photodynamic therapy oral infections Photodynamic therapy vs candidiasis Blue light 460 nm Streptococcus mutans

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Genome-wide Studies Reveal Genetic Risk Factors for Hepatic Fat Content

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Genomics, Proteomics & Bioinformatics 2024年第2期22卷 57-68页

作者： Yanni Li Eline H.van den Berg Alexander Kurilshikov Dasha V.Zhernakova Ranko Gacesa Shixian Hu Esteban A.Lopera-maya Alexandra Zhernakova Lifelines Cohort Study Vincent E.de meijer Serena Sanna robin P.F.Dullaart Hans Blokzijl Eleonora A.m.Festen Jingyuan Fu Rinse K.Weersma Department of Gastroenterology and Hepatology University of GroningenUniversity Medical Center GroningenGroningen 9713 GZThe Netherlands Department of Genetics University of GroningenUniversity Medical Center GroningenGroningen 9713 GZThe Netherlands Department of Gastroenterology and Hepatology Tianjin Medical University General HospitalTianjin Medical UniversityTianjin 300052China Laboratory of Genomic Diversity Center for Computer TechnologiesITMO UniversitySaint Petersburg 199034Russia Institute of Precision medicine the First Affiliated HospitalSun Yat-sen UniversityGuangzhou 510080China Department of Surgery Section of Hepatobiliary Surgery and Liver TransplantationUniversity of GroningenUniversity Medical Center GroningenGroningen 9713 GZThe Netherlands Department of Endocrinology University of GroningenUniversity Medical Center GroningenGroningen 9713 GZThe Netherlands Department of Pediatrics University of GroningenUniversity Medical Center GroningenGroningen 9713 GZThe Netherlands 不详

Genetic susceptibility to metabolic associated fatty liver disease(mAFLD)is complex and poorly *** characterization of the genetic background of hepatic fat content would provide insights into disease etiology and causality of risk *** performed genome-wide association study(GWAS)on two noninvasive definitions of hepatic fat content:magnetic resonance imaging proton density fat fraction(mRI-PDFF)in 16,050 participants and fatty liver index(FLI)in 388,701 participants from the United Kingdom(UK)Biobank(UKBB).Heritability,genetic overlap,and similarity between hepatic fat content phenotypes were analyzed,and replicated in 10,398 participants from the University medical Center Groningen(UmCG)Genetics Lifelines Initiative(UGLI).meta-analysis of GWASs of mRI-PDFF in UKBB revealed five statistically significant loci,including two novel genomic loci harboring CREB3L1(rs72910057-T,P=5.40E−09)and GCm1(rs1491489378-T,P=3.16E−09),respectively,as well as three previously reported loci:PNPLA3,Tm6SF2,and *** of FLI in UKBB identified 196 genome-wide significant loci,of which 49 were replicated in UGLI,with top signals in ZPR1(P=3.35E−13)and FTO(P=2.11E−09).Statistically significant genetic correlation(rg)between mRI-PDFF(UKBB)and FLI(UGLI)GWAS results was found(rg=0.5276,P=1.45E−03).Novel mRI-PDFF genetic signals(CREB3L1 and GCm1)were replicated in the FLI *** identified two novel genes for mRI-PDFF and 49 replicable loci for *** a difference in hepatic fat content assessment between mRI-PDFF and FLI,a substantial similar genetic architecture was *** is identified as an easy and reliable approach to study hepatic fat content at the population level.

关键词： Hepatic fat content mAFLD Genome-wide association study Fatty liver index magnetic resonance imaging proton density fat fraction

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2023: Weather and Climate Extremes Hitting the Globe with Emerging Features

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Advances in Atmospheric Sciences 2024年第6期41卷 1001-1016页

作者： Wenxia ZHANG robin CLARK Tianjun ZHOU Laurent LI Chao LI Juan RIVERA Lixia ZHANG Kexin GUI Tingyu ZHANG Lan LI Rongyun PAN Yongjun CHEN Shijie TANG Xin HUANG Shuai HU State Key Laboratory of Numerical modeling for Atmospheric Sciences and Geophysical Fluid Dynamics Institute of Atmospheric PhysicsChinese Academy of SciencesBeijing 100029China met Office Hadley Centre Exeter EX13PBUK University of Chinese Academy of Sciences Beijing 100049China Laboratoire de météorologie Dynamique CNRSSorbonne UniversitéEcole Normale SupérieureEcole PolytechniqueParis 75230France max Planck Institute for meteorology Hamburg 20146Germany Instituto Argentino de Nivología Glaciología Y Ciencias Ambientales(IANIGLA)CCT CONICETMendoza CP 5500Argentina Shanghai Typhoon Institute China Meteorological AdministrationShanghai 200030China Asia-Pacific Typhoon Collaborative Research Center Shanghai 201306China

Globally,2023 was the warmest observed year on record since at least 1850 and,according to proxy evidence,possibly of the past 100000 *** in recent years,the record warmth has again been accompanied with yet more extreme weather and climate events throughout the ***,we provide an overview of those of 2023,with details and key background causes to help build upon our understanding of the roles of internal climate variability and anthropogenic climate *** also highlight emerging features associated with some of these extreme *** extremes are occurring earlier in the year,and increasingly simultaneously in differing parts of the world(e.g.,the concurrent hot extremes in the Northern Hemisphere in July 2023).Intense cyclones are exacerbating precipitation extremes(e.g.,the North China flooding in July and the Libya flooding in September).Droughts in some regions(e.g.,California and the Horn of Africa)have transitioned into flood *** extremes also show increasing interactions with ecosystems via wildfires(e.g.,those in Hawaii in August and in Canada from spring to autumn 2023)and sandstorms(e.g.,those in mongolia in April 2023).Finally,we also consider the challenges to research that these emerging characteristics present for the strategy and practice of adaptation.

关键词： weather and climate extremes temperature extremes extreme precipitation drought wildfires

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Frequency-dependent viscoelasticity effects on the wave attenuation performance of multi-layered periodic foundations

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Applied mathematics and mechanics(English Edition) 2024年第3期45卷 407-424页

作者： m.SAFI m.VAKILIFARD m.J.mAHmOODI Faculty of Civil Water&Environmental EngineeringShahid Beheshti UniversityTehran ***Iran Faculty of mechanical and Energy Engineering Shahid Beheshti UniversityTehran ***Iran

In this paper,layered periodic foundations(LPFs)are numerically examined for their responses to longitudinal and transverse modes in the time and frequency *** different unit-cells,i.e.,2-layer,4-layer,and 6-layer unit-cells,comprising concrete/rubber,concrete/rubber/steel/rubber,and concrete/rubber/steel/rubber/lead/rubber materials,respectively,are taken into ***,the viscoelasticity behavior of the rubber is modeled with two factors,i.e.,a frequency-independent(FI)loss factor and a linear frequency-dependent(FD)loss *** the extraction of the complex dispersion curves and the identification of the band gaps(BGs),the simulations of wave transmission in the time and frequency domains are performed using the COmSOL *** parametric studies evaluate the effects of the rubber viscoelasticity models on the dispersion curves and the wave transmission for the longitudinal and transverse *** results show that considering the rubber viscoelasticity enhances the wave attenuation ***,the transverse-mode damping is more sensitive to the viscoelasticity model than its longitudinal *** 6-layer unit-cell LPF exhibits the lowest BG,ranging from 4.8 Hz to 6.5 Hz.

关键词： layered metamaterial periodic foundation complex dispersion curve wave transmission diagram

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