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Spatial distributions of soil nutrients affected by land use,topography and their interactions,in the Loess Plateau of China

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International Soil and Water Conservation Research 2024年第1期12卷 227-239页

作者： Wenxin Zhou Changjia Li Wenwu Zhao lindsay C.Stringer Bojie Fu State Key Laboratory of Earth Surface Processes and Resource Ecology Faculty of Geographical ScienceBeijing Normal UniversityBeijingChina Institute of Land Surface System and Sustainable Development Faculty of Geographical ScienceBeijing Normal UniversityBeijingChina Department of Environment and Geography University of YorkYorkUK York Environmental Sustainability Institute University of YorkYorkUK

Soil nutrient availability and their spatial distributions are strongly related to land use and landscape *** study aims to address the knowledge gap regarding the interaction between these factors and the underlying *** selected five land uses(grassland with Artemisia gmelinii,woodland with Robinia pseudoacacia,shrubland with Caragana korshinskii and Hippophae rhamnoides,and apple orchard with Malus pumila)and nine slope positions across hillslopes in the Loess Plateau,China,to investigate their combined effects on the contents and stocks of soil organic carbon(SOC),total nitrogen(TN)and total phosphorus(TP).Parametric and non-parametric statistical tests were conducted to determine the significant differences in the means or the medians of the soil nutrient *** showed that the SOC and TN contents of shrubland with Caragana korshinskii were statistically significantly greater than those of the grassland(p<0.05).SOC and TN contents generally decreased from the upper slope to the middle slope,and to the foot slope for the grassland,woodland and shrublands,and on the contrary,an increasing trend from the upper slope,to the middle slope,and to the foot slope was identified for the apple *** study highlights that land use,slope position and their interaction have significant effects on the spatial distributions of soil *** provides essential empirical evidence for the identification of the optimal vegetation type and slope positions in land management and vegetation restoration activities.

关键词： Soil organic carbon Total nitrogen Total phosphorus Slope position Vegetation restoration

“If Somebody Needed Help, I Went Over”: Social Capital and Therapeutic Communities of Older Adult Farmers in British Columbia Floods

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International Journal of Disaster Risk Science 2024年第2期15卷 290-301页

作者： Kyle Breen Siyu Ru Luna Vandeweghe Jenna Chiu lindsay Heyland Haorui Wu School of Social Work Dalhousie UniversityHalifaxNS B3H 1S2Canada

Older adults in disaster contexts are often thought of as a passive, vulnerable population that lacks agency and capacities to cope in the aftermath. However, it can be argued that older adults may have underrecognized strengths that can be utilized pre-, peri-, and post-disaster. One of these strengths is older adults' unique social capital that stems from long-standing connections with other members of their respective communities. Using data from in-depth, semistructured interviews with farmers in British Columbia 3–11 months after the 2021 floods, this research explored the experiences of older adult farmers' recovery. The farmers discussed how they leveraged their social capital to aid in their recovery efforts from the flood event. By using their bonding social capital, older adult farmers transformed their existing, deep-rooted connections into post-disaster assistance. This, in turn, generated the idea of the therapeutic community, helping community members cope in the aftermath. This research indicated the need to further examine how older adults in disaster settings can be viewed as assets with community knowledge and skills as opposed to solely as a vulnerable population.

关键词： British Columbia Flood disaster Older adults Qualitative research Social capital Therapeutic community

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

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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

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Happy Bird

小学生时代（大嘴英语） 2024年第4期 18-20页

作者： Claudia Lee-Ottman lindsay Dale-Scott(图) 不详

A Bayesian hierarchical model for the inference between metal grade with reduced variance:Case studies in porphyry Cu deposits

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Geoscience Frontiers 2024年第2期15卷 304-314页

作者： Yufu Niu Mark lindsay Peter Coghill Richard Scalzo Lequn Zhang CSIRO Mineral Resources Lucas HeightsNew South Wales 2234Australia Mineral Exploration Cooperative Research Centre Centre for Exploration TargetingSchool of Earth ScienceThe University of Western AustraliaPerthWA 6009Australia ARC centre for Data Analytics for Resources and Environments(DARE) Perth and SydneyAustralia CSIRO Mineral Resources Australian Resources Research CentreWA 6151Australia CSIRO Data61 ClaytonVIC 3168Australia

Ore sorting is a preconcentration technology and can dramatically reduce energy and water usage to improve the sustainability and profitability of a mining *** porphyry Cu deposits,Cu is the primary target,with ores usually containing secondary‘pay’metals such as Au,Mo and gangue elements such as Fe and *** to sensing technology limitations,secondary and deleterious materials vary in correlation type and strength with Cu but cannot be detected simultaneously via magnetic resonance(MR)ore *** the relationships between Cu and other elemental abundances is particularly critical for mineral *** variations in metal grade relationships occur due to the transition into different geological *** raises two questions-how to define these geological domains and how the metal grade relationship is influenced by these geological *** this paper,linear relationship is assumed between Cu grade and other metal *** applies a Bayesian hierarchical(partial-pooling)model to quantify the linear relationships between Cu,Au,and Fe grades from geochemical bore core *** hierarchical model was compared with two other models-‘complete-pooling’model and‘nopooling’*** blocks were split based on spatial domain to construct hierarchical *** bore core data records metal grades measured from laboratory assay with spatial coordinates of sample *** case studies from different porphyry Cu deposits were used to evaluate the performance of the hierarchical *** chain Monte Carlo(MCMC)was used to sample the posterior *** results show that the Bayesian hierarchical model dramatically reduced the posterior predictive variance for metal grades regression compared to the no-pooling *** addition,the posterior inference in the hierarchical model is insensitive to the choice of *** data is wellrepresented in the posterior which indicates a robust *** results show that the spatial dom

关键词： Bayesian hierarchical model Porphyry Cu deposit Ore sorting Metal grade Linear regression

Review on squeaking hips

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World Journal of Orthopedics 2015年第10期6卷 812-820页

作者： Yadin David Levy Selin Munir Shane Donohoo william lindsay walter Specialist Orthopaedic Group Mater Clinic Silesco Pty Ltd Mater Clinic Australia

Squeaking is a well-recognized complication for hardon-hard *** nature of squeaking is not yet completely understood however it is considered a multifactorial ***,implant,and surgical factors play a role in *** is believed that mechanisms damaging the fluid film lubrication in which these bearings function optimally have a critical *** mechanisms include edge loading,stripe wear,impingement,third body particles and ceramic *** resonance of metallic parts can produce noise in the human audible range hence the implant metallurgic composition and design may play a *** positioning can facilitate impingement and edge loading enhancing the occurrence of *** recent introduction of large heads(> 36 mm) 4th generation ceramic-on-ceramic bearing may accentuate the conditions facilitating noise formation; however the current literature is ***,squeaking may manifest in extreme hip positions or during normal gait cycle however it is rarely associated with *** of patients with squeaking include clinical and radiographic *** tomography is recommended as it can better reveal ceramic breakage and implant *** treatments for most squeaking patients include reassurance and activity *** for some,noise can be a problem,requiring further surgical *** the occurrence of ceramic fracture,implant failure,extreme components malposition,instability and impingement,surgery should be *** review will aim to discuss the current literature regarding squeaking.

关键词： Squeaking Total hip arthroplasty Ceramicon-ceramic Lubrication Edge loading Metal-on-metal

Development and application of feature engineered geological layers for ranking magmatic,volcanogenic,and orogenic system components in Archean greenstone belts

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Geoscience Frontiers 2024年第2期15卷 251-273页

作者： R.M.Montsion S.Perrouty M.D.lindsay M.W.Jessell R.Sherlock Mineral Exploration Research Centre Harquail School of Earth SciencesGoodman School of MinesLaurentian UniversitySudburyOntario P3E 2C6Canada Centre for Exploration Targeting School of Earth SciencesThe University of Western Australia35 Stirling HighwayCrawley 6009Australia Commonwealth Scientific and Industrial Research Organization Mineral Resources26 Dick Perry AveKensingtonWA 6151Australia ARC Centre for Data Analytics for Resources and Environments(DARE) Perth and SydneyAustralia

Geologically representative feature engineering is a crucial component in geoscientific applications of machine *** commonly applied feature engineering techniques used to produce input variables for machine learning apply geological knowledge to generic data science techniques,which can lead to ambiguity,geological oversimplification,and/or compounding subjective *** that utilize minimally processed input variables attempt to overcome these issues,but often lead to convoluted and uninterpretable *** address these challenges,new and enhanced feature engineering methods were developed by combining geological knowledge,understanding of data limitations,and a variety of data science *** include non-Euclidean fluid pre-deformation path distance,rheological and chemical contrast,geologically constrained interpolation of characteristic host rock geochemistry,interpolation of mobile element gain/loss,assemblages,magnetic intensity,structural complexity,host rock physical *** methods were applied to compiled open-source and new field observations from Archean greenstone terranes in the Abitibi and western Wabigoon sub-provinces of the Superior Province near Timmins and Dryden,Ontario,*** feature maps represent conceptually significant components in magmatic,volcanogenic,and orogenic mineral systems.A comparison of ranked feature importance from random forests to conceptual mineral system models show that the feature maps adequately represent system components,with a few exceptions attributed to biased training data or limited constraint *** study also highlights the shared importance of several highly ranked features for the three mineral systems,indicating that spatially related mineral systems exploit the same features when *** feature importance when classifying orogenic Au mineralization in Timmins and Dryden provides insights into the possible cause of contrasting endowment be

关键词： Machine learning Random forests Mineral systems Magmatic Ni-Cu-PGE Volcanogenic Massive Sulfide(VMS)Cu-Zn-Pb-Ag(-Au) Orogenic Au Abitibi Wabigoon

建立完备的售后服务体系对于eVTOL飞行器按时投入商业运营至关重要

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航空维修与工程 2024年第5期 21-24页

作者： lindsay Bjerregaard 周青华(编译) 不详

2024年被视为以e VTOL飞行器为代表的新一代空中出行方式的启动元年,中国亿航成为首家获得型号认证的eVTOL飞行器制造商,还有数家主要OEM厂商计划在年底前获得认证,因此该类飞行器的售后服务准备情况也成为了行业关注的焦点。本文从自... 详细信息

2024年被视为以e VTOL飞行器为代表的新一代空中出行方式的启动元年,中国亿航成为首家获得型号认证的eVTOL飞行器制造商,还有数家主要OEM厂商计划在年底前获得认证,因此该类飞行器的售后服务准备情况也成为了行业关注的焦点。本文从自建维修能力与外包服务之间的选择、技术人员培训与供应链管理、基础设施需求和维护策略等方面出发,对e VTOL飞行器的维护、修理和运营准备情况进行了深度分析。尽管市场还存在一些不确定性,但整个行业对e VTOL飞行器的未来持乐观态度,并期待这一新兴事物带来重要的市场机遇。

关键词：供应链管理外包服务市场机遇商业运营技术人员培训新兴事物维修能力基础设施

Pilfering of western juniper seed caches by scatter-hoarding rodents varies by microsite and canopy type

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Integrative Zoology 2022年第2期17卷 192-205页

作者： lindsay A.DIMITRI william S.LONGLAND Agricultural Research Service Great Basin Rangeland ResearchUSDAUSA

Scatter-hoarding rodents store seeds throughout their home ranges in superficially buried caches which,unlike seeds larder-hoarded in burrows,are difficult to *** seeds are often pilfered by other scatter-hoarders and either re-cached,eaten or *** seed movements can influence seedling recruitment,because only seeds remaining in caches are likely to *** the importance of scatter-hoarding rodents in the dispersal of western juniper seeds has recently been revealed,the level of pilfering that occurs after initial burial is *** traits,soil moisture,and substrate can influence pilfering processes,but less is known about how pilfering varies among caches placed in open versus canopy microsites,or how cache discovery and removal varies among different canopy-types,tree versus *** compared the removal of artificial caches between open and canopy microsites and between tree and shrub canopies at two sites in northeastern California during late spring and *** also used trail cameras at one site to monitor artificial cache removal,identify potential pilferers,and illuminate microsite use by *** of artificial caches was faster in open microsites at both sites during both seasons,and more caches were removed from shrub than tree *** kangaroo rats were the species observed most on cameras,foraging most often in open microsites,which could explain the observed pilfering *** is the first study to document pilfering of western juniper seeds,providing further evidence of the importance of scatter-hoarding rodent foraging behavior in understanding seedling recruitment processes in juniper woodlands.

关键词： Dipodomys californicus Juniperus Perognathus parvus Peromyscus truei seed caching seed dispersal