检索结果-南通市图书馆

Reconstructing the phytogeny of new world monkeys(platyrrhini):evidence from multiple non-coding loci

Current Zoology 2019年第5期65卷 579-588页

作者： Xiaoping WANG Burton K.LIM nelson ting Jingyang HU Yunpeng LIANG Christian ROOS Li YU State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan Yunnan UniversityKunmingChina School of Life Sciences Yunnan UniversityKunmingChina epartm ent of Natural History Royal Ontario MuseumTorontoONCanada Department of Anthropology and Institute of Ecology and Evolution University of OregonEugeneOregonUSA State Key Laboratory of Genetic Resources and Evolution Kunming Institute of ZoologyChinese Academy of SciencesKunmingChina Kunming College of Life Science University of Chinese Academy of SciencesKunmingChina Gene Bank of Primates and Primate Genetics Laboratory German Primate CenterLeibniz Institute for Primate ResearchKellnerwegGottingenGermany

Among mammalian phylogenies,those characterized by rapid radiations are particularly *** New World monkeys(NWMs,Platyrrhini)comprise 3 families and 7 subfamilies,which radiated within a relatively short time ***,their phylogenetic relationships are still largely *** the present study,56 nuclear non-coding loci,including 33 introns(INs)and 23 intergenic regions(IGs),from 20 NWM individuals representing 18 species were used to investigate phylogenetic relationships among families and *** the 56 loci,43 have not been used in previous NWM *** applied concatenation and coalescence tree-inference methods,and a recently proposed question-specific approach to address NWM *** results indicate incongruence between concatenation and coalescence methods for the IN and IG ***,a consensus was reached with a single tree topology from all analyses of combined INs and IGs as well as all analyses of question-specific loci using both concatenation and coalescence methods,albeit with varying degrees of statistical *** detail,our results indicated the sister-group relationships between the families Atelidae and Pitheciidae,and between the subfamilies Aotinae and Callithrichinae among *** study provides insights into the disputed phylogenetic relationships among NWM families and subfamilies from the perspective of multiple non-coding loci and various tree-inference ***,the present phylogenetic framework needs further evaluation by adding more independent sequence data and a deeper taxonomic ***,our work has important implications for phylogenetic studies dealing with rapid radiations.

关键词： coalescence concatenation non-coding nuclear genes primates phylogenetics

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

Decoding complexity: the need to enhance precision and streamline spatial understanding in neuroscience

引用

Neural Regeneration Research 2025年第3期20卷 801-802页

作者： Sameehan Mahajani Armita Salahi Brenda Gonzalez Charlotte nelson Frank Hsiung Biology&Applications Division NodexusSan JoseCAUSA

Neuroscience is the ultimate frontier in our quest for a comprehensive understanding of human behavior. Since its launch in 2009, the Human Connectome Project has emerged as a pioneering force, making heroic strides i... 详细信息

关键词： behavior frontier dating

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

基于线粒体基因组和44个非编码核基因数据进行灵长目疣猴亚科系统发育关系研究

基于线粒体基因组和44个非编码核基因数据进行灵长目疣猴亚科系统...

引用

中国的遗传学研究——遗传学进步推动中国西部经济与社会发展——2011年中国遗传学会大会

作者：王晓萍于黎 Christian Roos nelson ting 陈翠萍王景张亚平云南大学/云南省生物资源保护与利用重点实验室

灵长目疣猴亚科因经历了快速辐射和近期物种形成事件,使其系统发育关系的研究一直是哺乳动物分子系统学研究的焦点。我们基于线粒体基因组(16kb)以及44个非编码核基因(23kb)的系统深入分析,开展疣猴亚科各属之间系统发育关系的研究。研... 详细信息

灵长目疣猴亚科因经历了快速辐射和近期物种形成事件,使其系统发育关系的研究一直是哺乳动物分子系统学研究的焦点。我们基于线粒体基因组(16kb)以及44个非编码核基因(23kb)的系统深入分析,开展疣猴亚科各属之间系统发育关系的研究。研究结果表明:疣猴亚科形成非洲疣猴和亚洲疣猴两大进化枝。非洲疣猴先分歧出来。非洲疣猴由疣猴属(Colobus)和红疣猴属(Piliocolobus)组成。亚洲疣猴中,金丝猴属(Rhinopithecus),白臀叶猴属(Pygathrix)和长鼻猴属(Nasalis)三个属关系紧密,聚为一个单系,即"奇鼻"类。有趣的是,亚洲疣猴的其它属的系统发育位置在线粒体和核基因树之间都得到了不一致的结果。核基因结果表明,乌叶猴属(Trachypithecus)和长尾叶猴属(Semnopithecus)形成姐妹群,叶猴属(Presbytis)和"奇鼻"类聚在一起。在"奇鼻"类中的三个属之间,金丝猴属和长鼻猴属关系更近。相比之下,线粒体基因结果表明长尾叶猴属(Semnopithecus)最先分歧出来,乌叶猴属(Trachypithecus)和叶猴属(Presbytis)聚在一起,"奇鼻"类跟他们形成姐妹群。而在"奇鼻"类中的三个属之间,白臀叶猴属(Pygathrix)和长鼻猴属Nasalis关系更近。本研究工作的创新点在于将大规模非编码基因标记应用到灵长目疣猴亚科分子系统学研究中,并通过与流行的线粒体基因标记研究结果进行相互印证,提出新的系统发育假说。本研究提供了一个使用大规模内含子数据进行哺乳动物分子系统学研究的成功范例,具有很好的参考价值,并为其它哺乳动物类群的分子系统学研究提供了新的候选遗传标记。

关键词：疣猴亚科线粒体基因组非编码核基因系统发育

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

Biosphere 2’s Lessons about Living on Earth and in Space

引用

Space(Science & Technology) 2021年第1期2021卷 274-284页

作者： Mark nelson Institute of Ecotechnics(US/UK) USA

Biosphere 2,the largest and most biodiverse closed ecological system facility yet created,has contributed vital lessons for living with our planetary biosphere and for long-term habitation in *** the space life support perspective,Biosphere 2 contrasted with previous BLSS work by including areas based on Earth wilderness biomes in addition to its provision for human life support and by using a soil-based intensive agricultural system producing a complete human *** previous BLSS system had included domestic farm *** human and domestic animal wastes were also recycled and returned to the crop *** 2 was important as a first step towards learning how to miniaturize natural ecosystems and develop technological support systems compatible with *** 2’s mostly successful operation for three years(1991-1994)changed thinking among space life support scientists and the public at large about the need for minibiospheres for long-term habitation in *** an Earth systems laboratory,Biosphere 2 was one of the first attempts to make ecology an experimental science at a scale relevant to planetary issues such as climate change,regenerative agriculture,nutrient and water recycling,loss of biodiversity,and understanding of the roles wilderness biomes play in the Earth’s *** 2 aroused controversy because of narrow definitions and expectations of how science is to be *** cooperation between engineers and ecologists and the requirement to design a technosphere that supported the life inside without harming it have enormous relevance to what is required in our global *** of bioregenerative life support systems for near-term space applications such as initial Moon and/or Mars bases,will be severely limited by high costs of transport to space and so will rely on lighter weight,hydroponic systems of growing plants which will focus first on water and air regeneration and gradually increase its production of fo

关键词： Earth Biosphere bases

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

Geographic information technology usage in developing countries – A case study in Mozambique

引用

Geo-Spatial Information Science 2018年第4期21卷 331-345页

作者： nelson Amade Marco Painho Tiago Oliveira Universidade Catolica de Mocambique BeiraMozambique Nova Information Management School Universidade Nova de LisboaLisboaPortugal

Geographic information technologies(GIT)have matured,have become pervasive throughout many types of organizations over recent decades and gained a wide range of attention in diverse sectors of *** goal of this paper is to identify the main drivers and uses of GIT in organizations and to give an overview of GIT uses in developing countries with a focus on a case study developed for Mozambique by analyzing the results of a survey of 123 Mozambican organizations that are current GIT *** results show that the main drivers behind are compatibility,complexity,competitive pressure,donor pressure,government policy,intention to adopt,innovation,relative advantage,security,and technology *** of the public and private sectors use GIT for customer/resource/risk management,decision support,education,research,monitoring,prediction,simulation,suitability analysis,sustainability,use and access.

关键词： Geographic information technologies organizations remote sensing GPS geographic information systems Mozambique

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

Perspectives on the clinical management ocalized prostate cancer

引用

Asian Journal of Andrology 2014年第4期16卷 511-514页

作者： Joel B nelson Department of Urology University of Pittsburgh School of Medicine Pittsburgh Pennsylvania USA.

Defined broadly, prostate cancer has two states： An indolent histologicalmanifestation of a locally proliferative and invasive process or a clinically relevant, potentially lethal disease. Likewise, the management of clinically localized prostate cancer must address two questions： what sort of disease is this and what needs to be done.

关键词： @@

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

Refining spatial neighbourhoods to capture terrain effects

引用

Ecological Processes 2012年第1期1卷 98-108页

作者： Trisalyn A nelson Colin Robertson Spatial Pattern Analysis and Research Lab Department of GeographyUniversity of VictoriaPO Box 3060VictoriaBritish ColumbiaV8W 3R4SCanada Department of Geography and Environmental Studies Wilfrid Laurier UniversityWaterlooOntarioN2L 3C5Canada

Introduction:Spatially explicit ecological research has increased substantially in the past 20 *** spatial approaches require the definition of a spatial neighbourhood or the region over which spatial relationships are modelled or *** neighbourhood definitions impact analysis results,and there are benefits in considering neighbourhood definitions that better capture ecological *** goal of this research is to present a simple and flexible approach in constraining ecological spatial neighbourhoods using terrain ***:Using watershed boundaries,we can restrict spatial neighbourhoods from combining populations or processes that should be separated by terrain *** demonstrate the need for ecological constraints by way of a simulation study and highlight our approach with a case study examining mountain pine beetle(Dendroctonus ponderosae,Coleoptera;Hopkins)infestation hot ***:Our results demonstrate how failure to constrain neighbourhoods can lead to errors when the spatial signals from unrelated populations are ***,unconstrained spatial neighbourhoods can unintentionally detect spatial relationships across many ***:There will be benefits to studies that develop new,ecology-based approaches in defining spatial neighbourhoods that better illuminate ecological function of phenomena under study.

关键词： spatial weights spatial analysis spatial ecology hot spots topography

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

On the Coherent States and the Squeezed States

引用

Chinese Physics Letters 1995年第6期12卷 321-323页

作者： YU Zurong C.A.nelson Department of Physics Nanjing UniversityNanjing 210008 Department of Physics Tongji UniversityShanghai 200092 State University of New York at Binghamton BinghamtonNY 139026000

In this paper the coherent and the squeezed state of the bose field is written as a universal form by means of a projector which transforms the old vacuum state to the new vacuum *** transformed vacuum state is the co... 详细信息

关键词： state. vacuum coherent

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

Experimental and numerical evaluation of multidirectional compressive and flexure behavior of three-dimensional printed concrete

引用

Frontiers of Structural and Civil Engineering 2023年第11期17卷 1643-1661页

作者： Lalit KUMAR Dhrutiman DEY Biranchi PANDA nelson MUTHU Department of Mechanical Engineering Indian Institute of Technology GuwahatiAssam 781039India

Three-dimensional concrete printing(3DCP)can proliferate the industrialization of the construction sector,which is notoriously conservative and indolent toward ***,the mechanical behavior of 3DCP should be characterized and modeled considering the interfaces when its performance is thoroughly compared to that of the existing concrete construction *** study presents an experimental and numerical investigation of uniaxial compression and three-point bending(TPB)tests on extruded 3DCP beams in different loading *** orientation of translational and depositional interfaces with respect to the direction of loading influenced the *** the elastic and post-damage behavior of the 3DCP specimens were compared with those of the conventionally cast specimen under quasi-static loading *** the higher compressive strength of the casted specimen,the flexural strength of the 3DCP specimens was *** study employed the finite element and cohesive zone models of the appropriate calibrated traction-separation law to model fracture in the notched TPB ***,the real-time acoustic emission test revealed the nature of failure phenomenon of three-dimensional-printed specimens under flexion,and accordingly,the cohesive law was *** predicted load-displacement responses are in good agreement with the experimental ***,the effects of cohesive thickness and notch shape on the performance under bending were explored through parametric studies.

关键词： three-dimensional printing anisotropy flexure compression cohesive zone model finite element model

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

Carboxylesterases in lipid metabolism： From mouse to human

引用

Protein & Cell 2018年第2期9卷 178-195页

作者： Jihong Lian Randal nelson Richard Lehner Group on Molecular and Cell Biology of Lipids University of Alberta Edmonton Alberta Canada Department of Pediatrics University of Alberta Edmonton Alberta Canada Department of Cell Biology University of Alberta Edmonton Alberta Canada

Mammalian carboxylesterases hydrolyze a wide range of xenobiotic and endogenous compounds, including lipid esters. Physiological functions of car- boxylesterases in lipid metabolism and energy home- ostasis in vivo have been demonstrated by genetic manipulations and chemical inhibition in mice, and in vitro through （over）expression, knockdown of expression, and chemical inhibition in a variety of cells. Recent research advances have revealed the relevance of carboxylesterases to metabolic diseases such as obesity and fatty liver disease, suggesting these enzymes might be potential targets for treatment of metabolic disorders. In order to translate pre-clinical studies in cellular and mouse models to humans, dif- ferences and similarities of carboxylesterases between mice and human need to be elucidated. This review presents and discusses the research progress in structure and function of mouse and human car- boxylesterases, and the role of these enzymes in lipid metabolism and metabolic disorders.

关键词： carboxylesterase lipase lipid lipoprotein iver adipose intestine

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

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：