检索结果-南通市图书馆

维普期刊数据库

低年级直博生学术热情缘何消减:基于扎根理论的分析

在线全文

学校读者我要写书评

暂无评论

学位与研究生教育 2022年第1期 63-70页

作者：洪茜郭菲 Hamish coates 清华大学教育研究院北京100084 清华大学教育研究院高等教育研究所北京100084

运用扎根理论方法,探究低年级直博生学术热情消减的原因,指出学术热情消减是在个体入学前学习基础、动机与准备,教育情境中的重要他者和发展平台,以及就业前景等因素的作用下引发的行动回应,在不同个体身上体现为“主动放弃”或“被动... 详细信息

运用扎根理论方法,探究低年级直博生学术热情消减的原因,指出学术热情消减是在个体入学前学习基础、动机与准备,教育情境中的重要他者和发展平台,以及就业前景等因素的作用下引发的行动回应,在不同个体身上体现为“主动放弃”或“被动抽离”两类维度,进而对个体后续发展趋向产生差异化的影响。据此提出了建议:贯通“后推免时期”与博士生教育阶段,提升本博衔接水平;因人施教,设定合理角色期望与支持策略;适应学生多元的发展需求,建设开放包容的博士生培养体系。

关键词：直博生学术热情扎根理论博士生教育

维普期刊数据库

在线全文

学校读者我要写书评

暂无评论

露天矿岩石边坡的稳定性

矿业工程 1965年第8期 1-8页

作者： d.F.coates 文霞飞

本文主要阐明露天矿岩石边坡破坏形式的分类,分析了影响边坡稳定的诸因素,叙述有关预防和控制边坡破坏的方法。指出今后边坡研究的方向。

关键词：边坡破坏形式剪应力静水压力疏干剪切应力剪切性质边坡破坏露天矿矿山抗剪强度剪切强度张力裂隙岩块

急诊科哮吼患儿雾化吸入高湿度、低湿度气体以及直接呼吸室内加湿空气的疗效研究:一项随机对照试验

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

世界核心医学期刊文摘（儿科学分册） 2006年第9期2卷 1-2页

作者： Scolnik d. coates A.L. Stephens d. 张振 Hospital for Sick Children 555 University Ave Toronto Ont. M5G 1X8 Canada

Context:Children with croup are often treated with humidity even though this is not scientifically based,consumes time,and can be harmful. Although humidity using the traditional blow-by technique is similar to room air and no water droplets reach the nasopharynx,particles sized for laryngeal deposition (5-10 μ m) could be beneficial. Objective:To determine whether a significant difference in the clinical Westley croup score exists in children with moderate to severe croup who were admitted to the emergency department and who received either 100% humidity or 40% humidity via nebulizer or blow-by humidity. design and Setting:A randomized,single-blind,controlled trial conducted between 2001 and 2004 in a tertiary care p.d.atric emergency department. participants:A convenience sample of 140 previously healthy children 3 months to 10 years of age with Westley croup score of more than 1 (scoring system range,0-17); 21 families refused participation. Intervention:Thirty minute administration of humidity using traditional blow-by technique (commonly used placebo,n = 48),controlled delivery of 40% humidity (optimally delivered placebo,n = 46),or 100% humidity (n = 46) with water particles of mass median diameter 6.21 μ m. Main Outcome Measure:A priori defined change in the Westley croup score from baseline to 30 and 60 minutes in the 3 groups. Results:Groups were comparable before treatment. At 30 minutes the difference in the improvement in the croup score between the blow-by and low-humidity groups was 0.03 (95% confidence interval [CI],-0.72 to 0.66),between low-and high-humidity groups,0.16 (95% CI,-0.86 to 0.53),and between blow-by and high-humidity groups,0.19 (95% CI,-0.87 to 0.49). Results were similar at 60 minutes. differences between groups in pulse and respiratory rates and oxygen saturation changes were insignificant,as were proportions of excellent responders; proportions with croup score of 0 at study conclusion; and proportions receiving dexamethasone,epinep

关键词：雾化吸入哮吼急诊科随机对照试验疗效研究患儿鼻咽改善幅度单盲空气加湿评分结果

维普期刊数据库

在线全文

学校读者我要写书评

暂无评论

岩石力学原理

岩石力学原理

从牛和猪的肠道感染中分离的大肠杆菌(E·Coli)对抗菌素的敏感性

作者： d.F.4·科茨(d.F. coates)

来源：南通市图书馆图书评论

学校读者我要写书评

暂无评论

河南畜牧兽医(综合版) 1981年第2期 78-81页

作者： S·R·coates·p.d.K·H·Hoopeb·dΛ 窦瀚修

从91头腹泻的小猪和98头腹泻的小牛中分离出的大肠杆菌,用 Kirby—Bauer 的方法测定了对19种不同微生物抗菌素的敏感性。实际上从猪和牛中分离的大肠杆菌都对Amikacin,粘菌素,庆大霉素及多粘菌素 B 敏感。在试管内已测定出这四种药物对... 详细信息

从91头腹泻的小猪和98头腹泻的小牛中分离出的大肠杆菌,用 Kirby—Bauer 的方法测定了对19种不同微生物抗菌素的敏感性。实际上从猪和牛中分离的大肠杆菌都对Amikacin,粘菌素,庆大霉素及多粘菌素 B 敏感。在试管内已测定出这四种药物对由猪和牛的分离菌的最小抑制浓度。对新生仔猪和犊牛的急性腹泻除了进行治疗脱水和酸中毒外,常常实行抗菌素治疗以制止细菌性肠炎的发生或预防可能发生的菌血症或败血症。囚为已确定大肠杆菌是新生仔畜急性腹泻所致的菌血症或败血症的一个主要原因,目前的研究建立在肠致病菌株存在时是腹泻的基本原因上。它的目的是在试管内测定腹泻的小猪和小牛分离的大肠杆菌对目前使用的和可能用于治疗的抗菌素的敏感性。试图确定分离的菌株是感染的基本病原而未能达到。然而,牛的分离菌中的 Kpp 抗原及猪的分离菌中的溶血特性表明了分离菌的肠道致病性质的某些指征。

关键词：抗菌素金素敏感性试验分离菌 Coli 大肠杆菌大肠埃希氏菌埃希氏杆菌属

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

布哈林案件

Genomic and mitochondrial evidence of ancient isolations and extreme introgression in the four-lined snake

1988年

作者： K.·科茨(K. coates)

来源：南通市图书馆图书汇雅图书（南通市图书馆... 评论

在线全文

汇雅图书（南通市图书馆）

学校读者我要写书评

暂无评论

作者： K.·科茨(K. coates)

学校读者我要写书评

暂无评论

Current Zoology 2020年第1期66卷 99-111页

作者： Evanthia THANOU panagiotis KORNILIOS petros LYMBERAKIS Adam d.LEACHE department of Biology University of WashingtonSeattleWAUSA The Molecular Ecology Backshop LoutrakiGreece Institute of Evolutionary Biology(CSIC-Universitat pompeu Fabra) BarcelonaSpain Natural History Museum of Crete University of CreteIrakleioGreece

Comparing mitochondrial and genomic phylogenies is an essential tool for investigating speciation processes,because each genome carries different inheritance properties and evolutionary ***,mitonuclear discordance may arise from ecological adaptation,historic isolation,population size changes,and sex-biased *** related taxa are expected to experience gene flow;however,this may not be true for insular populations or populations isolated in *** four-lined snake Elaphe quatuorlineata has a fragmented distribution,separating populations of the Italian and Balkan peninsulas,whereas several insular Aegean populations of significantly smaller body size(Cyclades island group and Skyros Island,Greece)are currently considered distinct *** constructed the species-tree phylogeny of this species utilizing genome-wide single nucleotide polymorphisms and a gene-tree based on complete cytochrome b sequences,aiming to detect convergence and discrepancies between biparentally and maternally inherited *** structuring,phylogenetic patterns and migration events among geographically defined lineages supported our hypothesis of isolation in multiple *** biogeographical barriers did not restrict subsequent dispersal,extensive genetic exchange occurred between mainland Balkan *** process has led to the mitochondrial sweep of an ancestral mitolineage that survived only in peripheral(East Greece)and insular populations(North Cyclades and Skyros).The Central Cyclades represent an ancient lineage for both molecular markers that emerged almost 3.3 *** their distinct morphology,insular *** populations should be the future focus of an extensive sampling,especially since the mitonuclear discordance observed in this species could be related to ecological adaptations,such as the island-dwarfism phenomenon.

关键词： Aegean Islands Elaphe quatuorlineata species-tree genome-wide SNps mitochondrial introgression phylogeography refugia within refugia

Genomics and introgression： discovery and mapping of thousands of species-diagnostic SNps using RAd sequencing

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

Current Zoology 2015年第1期61卷 146-154页

作者： Brian K. HANd Tyler d. HETHER Ryan p. KOVACH Clint C. MUHLFELd Stephen J. AMISH Matthew C. BOYER Sean M. O'ROURKE Michael R. MILLER Winsor H. LOWE paul A. HOHENLOHE Gordon LUIKART Flathead Lake Biological Station Fish and Wildlife Genomics Group University of Montana Poison MT 59860 USA Institute for Bioinformatics and Evolutionary Studies Department of Biological Sciences University of Idaho Moscow ID 83844 USA U. S. Geological Survey Northem Rocky Mountain Science Center Glacier National Park West Glacier Montana 59936 USA Fish and Wildlife Genomics Group Division of Biological Sciences The University of Montana Missoula Montana 59812USA Montana Fish Wildlife and Parks Kalispell Montana 59901 USA department of Animal Science University of California Davis One Shields Avenue Davis CA 95616 USA University of Montana Division of Biological Sciences Missoula Montana 59812 USA

Invasive hybridization and introgression pose a serious threat to the persistence of many native species. Understand- ing the effects of hybridization on native populations （e.g., fitness consequences） requires numerous species-diagnostic loci dis- tributed genome-wide. Here we used RAd sequencing to discover thousands of single-nucleotide polymorphisms （SNps） that are diagnostic between rainbow trout （RBT, Oncorhynchus mykiss）, the world＇s most widely introduced fish, and native westslope cutthroat trout （WCT, （9. clarkii lewisi） in the northern Rocky Mountains, USA. We advanced previous work that identified 4,914 species-diagnostic loci by using longer sequence reads （100 bp vs. 60 bp） and a larger set of individuals （n = 84）. We sequenced RAd libraries for individuals from diverse sampling sources, including native populations of WCT and hatchery broodstocks of WCT and RBT. We also took advantage of a newly released reference genome assembly for RBT to align our RAd loci. In total, we discovered 16,788 putatively diagnostic SNps, 10,267 of which we mapp.d.to anchored chromosome locations on the RBT genome. A small portion of previously discovered putative diagnostic loci （325 of 4,914） were no longer diagnostic （i.e., fixed between species） based on our wider survey of non-hybridized RBT and WCT individuals. Our study suggests that RAd loci mapp.d.to a draft genome assembly could provide the marker density required to identify genes and chromosomal regions in- fluencing selection in admixed populations of conservation concern and evolutionary interest [Current Zoology 61 （1）： 146-154, 2015].

关键词： Conservation genetics Hybridization Invasive species Next generation sequencing Salmonid fish SNp.d.scovery