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Insect Science 2018年第6期25卷 1119-1127页

作者： Lachlan C.jones Brodie j.foster Michelle A.Rafter Gimme H.Walter School of Biological Sciences The University of QueenslandSt LuciaBrisbaneQueenslandAustrafia

To survive in nature,organisms may need to take direct action to mitigate specific dangers from their environmental *** flying insects are thought to be at particular risk from rainfall that would be of negligible concern to larger *** study species Frankliniella schultzei is a thrips that inhabits flowers and feeds mostly on petal tissue and *** found to respond in the laboratory to decreases in atmospheric pressure associated with cyclonic conditions (rather than merely heavy rainfall),their responses to conditions preceding rainfall have not been tested in the *** field sampling investigated the relationship between floral development and sites at which male,female,and larval thrips were generally present on sunny *** then designed a sampling strategy to test if these thrips can anticipate imminent rainfall or storms and so seek shelter deep within flowers,by sampling host flowers (in sections)on multiple days with different weather *** traps were used to intercept thrips in flight,thus providing a measure of flight behavior across different *** initial sampling found adult thrips primarily at the petal apex of anthesis-stage flowers where pollen is distributed. We subsequently found that rainfall,atmospheric pressure change,temperature,humidity and wind had no effect on flight behavior of E schultzei,or on their positions within *** findings suggest rainfall is not a serious hazard for *** thrips can survive raindrop collisions during flight,as impacts with water droplets are not expected to break the surface tension.

关键词： barometric pressure Frankliniella schultzei Malvaviscus arboreus rainfall shelter thrips

Towards a unified nonlocal, peridynamics framework for the coarse-graining of molecular dynamics data with fractures

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Applied Mathematics and Mechanics(English Edition) 2023年第7期44卷 1125-1150页

作者： H.Q.YOU X.XU Y.YU S.SILLING M.D'ELIA j.foster Department of Mathematics Lehigh UniversityBethlehemPA 18015U.S.A Department of Petroleum and Geosystems Engineering The University of Texas at AustinTX 78712-1139U.S.A. Center for Computing Research Sandia National LaboratoriesCA 94551-0969U.S.A.

Molecular dynamics(MD)has served as a powerful tool for designing materials with reduced reliance on laboratory ***,the use of MD directly to treat the deformation and failure of materials at the mesoscale is still largely beyond *** this work,we propose a learning framework to extract a peridynamics model as a mesoscale continuum surrogate from MD simulated material fracture data ***,we develop a novel coarse-graining method,to automatically handle the material fracture and its corresponding discontinuities in the MD displacement data *** by the weighted essentially non-oscillatory(WENO)scheme,the key idea lies at an adaptive procedure to automatically choose the locally smoothest stencil,then reconstruct the coarse-grained material displacement field as the piecewise smooth solutions containing ***,based on the coarse-grained MD data,a two-phase optimizationbased learning approach is proposed to infer the optimal peridynamics model with damage *** the first phase,we identify the optimal nonlocal kernel function from the data sets without material damage to capture the material stiffness ***,in the second phase,the material damage criterion is learnt as a smoothed step function from the data with *** a result,a peridynamics surrogate is *** a continuum model,our peridynamics surrogate model can be employed in further prediction tasks with different grid resolutions from training,and hence allows for substantial reductions in computational cost compared with *** illustrate the efficacy of the proposed approach with several numerical tests for the dynamic crack propagation problem in a single-layer *** tests show that the proposed data-driven model is robust and generalizable,in the sense that it is capable of modeling the initialization and growth of fractures under discretization and loading settings that are different from the ones used during training.

关键词： nonlocal model machine learning homogenization peridynamics material fracture

Recent advances in targeting the“undruggable”proteins:from drugdiscover to clinical trials

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Signal Transduction and Targeted Therapy 2023年第10期8卷 4477-4547页

作者： Xin Xie Tingting Yu Xiang Li Nan Zhang Leonard j.foster Cheng Peng Wei Huang Gu He State Key Laboratory of Southwestern Chinese Medicine Resources College of Medical Technology and School of PharmacyChengdu University of Traditional Chinese Medicine611137 ChengduChina Michael Smith Laboratories University of British ColumbiaVancouverBC V6T 1Z4Canada Department of Dermatology and State Key Laboratory of Biotherapy West China HospitalSichuan University610041 ChengduChina

Undruggable proteins are a class of proteins that are often characterized by large,complex structures or functions that are diffcult to interfere with using conventional drug design *** such undruggable targets has been considered also a great opportunity for treatment of human diseases and has attracted substantial efforts in the field of ***,in this review,we focus on the recent development of drug discovery targeting"undruggable"proteins and their application in *** make this review well organized,we discuss the design strategies targeting the undruggable proteins,including covalent regulation,allosteric inhibition,protein-protein/DNA interaction inhibition,targeted proteins regulation,nucleic acid-based approach,immunotherapy and others.

关键词： drug diseases clinical

Discovery of the Middle jurassic Small Theropod Footprints in Eastern Tibet, China

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journal of Earth Science 2022年

作者： Yangui Li Huazhou Yao Asma Tahir junaid Khan William j.foster Ping Wang Laishi Zhao Zhihui An Chuanshang Wang jianxiong Wang Institute of Geological Survey China University of Geosciences Institute for Geology University of Hamburg Hubei Key Laboratory of Paleontology and Geological Environment Evolution Wuhan Center China Geological Survey State Key Laboratory of Geological Processes and Mineral Resources

jurassic continental strata are widely distributed in the Changdu area of eastern Tibet,but very few dinosaur footprints have been reported. Abundant sauropod, ornithopod and theropod footprints preserved in the Wenda site have been found during the recent geological surveys. This is a novel assemblage of the Middle jurassic dinosaur footprints. These footprint fossils provide a key insight into the members of dinosaur faunas, and the behavior of the trackmakers. Here, the newly discovery small theropod footprints, which are identified as Wildeichnus isp., are discussed. The analysis of two trackways suggest that these two trackmakers (with a hip height of approx. 35 cm, and a body length of approx. 1 m) were moving slowly, with an estimated speed of 0.82 and 0.57 m/s, respectively. It is unusual for small theropods to move so slowly, and the present study supports the view that Wildeichnus had a global distribution, but the trackmaker of Wildeichnus is not interpreted as a juvenile Grallator.

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藏东昌都地区首次发现中侏罗世兽脚类恐龙行迹

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地球科学 2022年第11期47卷 4222-4244页

作者：李炎桂姚华舟 William j.foster 邢立达王传尚 Asma Tahir junaid Khan 安志辉赵赫王建雄中国地质调查局武汉地质调查中心湖北武汉430205 中国地质大学地质调查研究院湖北武汉430074 古生物与地质环境演化湖北省重点实验室湖北武汉430205 汉堡大学地质学院德国汉堡201465 中国地质大学北京100083

藏东昌都地区阿涅塘化石点中侏罗世达布卡组滨湖相紫红色中-细砂岩中,发现以凸形迹完好地保存的4层恐龙足迹,包括Grallator类、大型兽脚类、小型兽脚类和小型蜥脚类等足迹类型,并构成两列完美的行迹.组成行迹T1的4个Grallator类足迹被... 详细信息

藏东昌都地区阿涅塘化石点中侏罗世达布卡组滨湖相紫红色中-细砂岩中,发现以凸形迹完好地保存的4层恐龙足迹,包括Grallator类、大型兽脚类、小型兽脚类和小型蜥脚类等足迹类型,并构成两列完美的行迹.组成行迹T1的4个Grallator类足迹被命名为Grallator anietangensis ***.,对其进行了详细的形态学分析,并讨论了造迹恐龙的大小和运动状态,这是Grallator类足迹在西藏地区的首次发现.组成行迹T2的9个大型兽脚类足迹被归为Theropoda *** ***.,对该类足迹进行了形态描述和功能分析;这类足迹在中国是首次记录,其连续且清晰的尾迹表明造迹者并非处于正常运动状态,而是应对某种特殊境况的特别行为方式,即其正以昂起的前躯一边观察,一边以极低的速度前进,因前躯昂起,尾部相应下垂,从而留下尾迹.两列行迹均显示出造迹者正沿古昌都湖岸前进.中国迄今所发现的恐龙骨骼和Grallator类足迹化石主要表现为以西南地区为中心,再向四周不断发散的扩散模式,但Grallator类足迹化石综合提供的信息显示恐龙动物的扩散速度比骨骼化石反映的速度更快.

关键词：兽脚类足迹恐龙中侏罗世达布卡组藏东昌都地区

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孩子的守护天使

考试与评价（大学英语四级考试版） 2009年第9期 40-41页

作者： Linda j.foster

从前，有个孩子准备要诞生了，他问上帝：“听说明天你就送我去人间了，但是，我这么弱小和无助，我在那儿怎么生活呢？”

关键词：大学英语英语学习阅读《孩子的守护天使》

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视频压缩技术:什么是MPEG-2?

今日电子 1995年第6期 99-100页

作者： Edward j.foster 杨峨

在早先的文章中(“音频视频”,1993年10月),我讨论了若干已经出台和即将出台的数字化视频系统:基于视频的电话会议;交互式多媒体;从中央数据库、5英寸音频光盘机(CD)上调用全动视频;从数字式盒式录相机(VCR)和摄像机调出话动电影等内容... 详细信息

在早先的文章中(“音频视频”,1993年10月),我讨论了若干已经出台和即将出台的数字化视频系统:基于视频的电话会议;交互式多媒体;从中央数据库、5英寸音频光盘机(CD)上调用全动视频;从数字式盒式录相机(VCR)和摄像机调出话动电影等内容,但未涉及HDTV(高清晰度电视),并阐述过一个有效的数据压缩系统对于当前系统的运作和未来系统可能实现的必要性。

关键词：视频压缩 MPEG-2 编码数据压缩

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视频压缩技术:什么是MPEG?

今日电子 1995年第6期 97-98页

作者： Edward j.foster 赵卫滨

数字音频性能优越,它以取样序列源的方式代替了模拟音频。目前人们普遍认为CD唱机(激光唱盘唱机)优于普通唱机、优于盒式磁带机和盘式磁带机。数字信号的记录和重放,从原理上讲没有信号的衰减和失真,其信噪比仅取决于数字处理本身,与记... 详细信息

数字音频性能优越,它以取样序列源的方式代替了模拟音频。目前人们普遍认为CD唱机(激光唱盘唱机)优于普通唱机、优于盒式磁带机和盘式磁带机。数字信号的记录和重放,从原理上讲没有信号的衰减和失真,其信噪比仅取决于数字处理本身,与记录和传输媒介无关。视频数字化将来,数字视频将象数字音频在音乐中取代模拟音频一样,取代模拟视频。当前高清晰度彩电(HDTV)引人注目(在美国它是采用数字技术的)。

关键词：视频压缩 MPEG 编码 CD唱机

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微观—中观—宏观

如何在多个市场经营报业集团——访美国甘乃特报业总裁Gary ***

理论经济学 2010年第5期 10-21页

作者： Kurt Dopfer j.foster j.Potts

最近，多普菲和波茨提出了演化的批判实在论，以此为基础，我们为演化经济学发展了一个微观—中观—宏观结构的分析框架。重新构建这个框架的目的是为了明确经济演化过程中“存在”和“改变”所具有的高度复杂和突变的特征。对我们来说... 详细信息

最近，多普菲和波茨提出了演化的批判实在论，以此为基础，我们为演化经济学发展了一个微观—中观—宏观结构的分析框架。重新构建这个框架的目的是为了明确经济演化过程中“存在”和“改变”所具有的高度复杂和突变的特征。对我们来说，一个主要的直觉在于经济系统是一个规则的个体群、一个规则构成的结构、一个规则演变的过程。经济系统是一个包含我们称之为中观的规则系统。从演化的视角来看，我们不能武断地认为微观的总和就是宏观。相反，我们把经济系统看成是中观单位的集合，每个中观单位都由一个规则和它的实现群体构成。正统的演化经济学分析框架应当以微观—中观—宏观命名。微观指的是规则的个体载体以及它们所组成的系统，宏观则由中观系统的个体群结构构成。中观结构的组成元素共享着微观结构，而中观的组成元素又通过宏观结构连接，结果是形成了一个用于分析经济演化中中观领域变化的本体上一致的框架——我们称之为中观轨道——以及一个理解包括微观过程和宏观结果的方法。我们相信，微观—中观—宏观的分析框架能够极大地强化和明确演化经济学理论的中心问题，并最终使它成为更为有力的理论。

关键词：演化经济学微观中观宏观框架

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中国报业 2003年第3期 70-74页

作者： Michelle j.foster 贾淑倩

本文是一篇曾刊于《现代广告》1997年第6期的专题报道,当时就有业界人士称赞该杂志刊登此文是广开思路,能够较早地关注国外报团的业务管理,因为就在此文刊登的前一年,国内才有了首家报业集团。时隔六年,集团化已经成了中国报业发展的一... 详细信息

本文是一篇曾刊于《现代广告》1997年第6期的专题报道,当时就有业界人士称赞该杂志刊登此文是广开思路,能够较早地关注国外报团的业务管理,因为就在此文刊登的前一年,国内才有了首家报业集团。时隔六年,集团化已经成了中国报业发展的一大趋势,但是目前集团化运营的过程中仍有诸多缺失磕绊。他山之石,可以攻玉,本文中提到的多市场经营优势、如何收购新业务、以人力资源管理为核心的经营管理原则、报业结构调整,特别是"经营变革"的企业理念,现在看来仍是实用且富有新意的。特转载于此,希望能对报业同仁有所裨益。

关键词：市场经营报业集团报纸广告业务现代广告新业务市场推广业务管理经营模式收购