Results 101 to 110 of about 19,875 (213)
Objective: to improve the comprehensive ability of nursing students, to meet the need of clinical nursing. Methods: selected senior nursing students of two classes from grade 2012 , one class was taught by situational teaching method, the other class was
Zhou, Feng
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Differences in characteristics between naturalized threatened plants and other threatened plants
Conservation Biology, EarlyView.Abstract Many non‐native plant species introduced by humans have become naturalized. At the same time many species are threatened in their native range. However, the number of plant species threatened in their native range that are naturalized elsewhere remains unknown.
Weihan Zhao +10 more
wiley +1 more source
野生动物学报, 1991 为了宣传、贯彻《中华人民共和国野生动物保护法》,使各级野生动物行政主管部门工作人员、自然保护区工作人员、以及工商、海关、公安、检察院、法院等工作人员在保护野生动物工作中,熟知国家重点保护野生动物的形态、生态和分布特点,更好的严惩乱捕滥猎、倒卖走私国家重点保护野生动物及其产品的犯罪分子,林业部野生动物与森林植物保护司、中国野生动物保护协会秘书处编辑了《国家重点保护野生动物图谱》一书,并由东北林业大学出版社出版,林业部《野生动物》杂志社组织发行。
doaj
Design and Implementation of Monitoring Platform for Thermoelectric Enterprise Running Cost and Efficiency [PDF]
, 2016 面对生产过程中遇到的各种机遇和挑战，保证生产安全、提高生产效率、降低生产成本、节能减排成为热电企业的主要目标。当前国内热电企业管理水平和信息化水平相对国外企业还有一定的差距，生产过程中产生的各项数据未能及时地进行信息化采集，老旧的成本核算方式导致企业管理者不能准确、实时、全面地掌握各机组的运行状况，直接影响了企业的生产效率和经济效率。 本文在对目前热电企业的运行管理和成本分析管理研究分析基础之上，根据需求分析对热电企业运行成本及效率监控平台进行了详细的结构设计、性能分析、数据库选型和应用功能设计等 ...
张婷婷
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Comprehensive framework for assessing and optimizing existing research networks
Conservation Biology, EarlyView.Abstract Conservation, monitoring, and research networks, or collections of ecological research sites unified under a common mission of data collection or a research mission, are essential infrastructure for understanding large landscapes. However, most networks developed opportunistically over decades rather than through systematic design, creating ...
Alyson East +2 more
wiley +1 more source
野生动物学报, 1999 美国野生动物保护工作主要是在自然保护区和国家公园中进行的。自1903年美国在佛罗里达州Pelican岛建立了美国第一个野生动物自然保护区,美国野生动物保护区的历史已经经历了96个年头,野生动物保护区的数量已经超过500个。在美国的52个州中,每一个州至少有一个野生动物保护区。野生动物保护区所占的土地也由1903年的3英亩,增加到9200万英亩。在野生动物保护区内,700多种鸟类,220多种哺乳动物 ...
马建章, 罗理扬, 邹红菲
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The role of appoptosin in regulating oxidative stress and mitochondrial morphology [PDF]
, 2015 氧化压力是指细胞或体内氧自由基的含量超出抗氧化物及抗氧化酶类清除能力时对细胞或机体造成的氧化胁迫。氧化压力参与了包括炎症、衰老、心血管疾病、癌症、糖尿病、艾滋病、神经退行性疾病等多种疾病的发病过程。氧化压力通过多个下游信号通路对细胞造成胁迫，如JNK、Foxo等，但其中的具体参与蛋白仍有待于深入阐明。Appoptosin也被称为SLC25A38，是一种定位于线粒体内膜的转运蛋白，负责转入甘氨酸并转出D-氨基乙酰丙酸，进而调节血红素（heme）的合成 ...
张翠林
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Conservation Biology, EarlyView.Abstract Recognition and engagement of Indigenous Peoples and local communities (IP&LCs) and other traditional knowledge (TK) holders in formal biodiversity governance remain limited, despite their significant contribution to the conservation and sustainable use of biodiversity through their knowledge, innovations, practices, and land stewardship.
Kinga Öllerer +8 more
wiley +1 more source
The study of Mitochondrial DNA Gene Rearrangement in 4 species of birds(Aves: Falconiformes) [PDF]
, 2016 线粒体控制区由于进化速率快，被作为分子标记广泛应用于种群遗传学和保护生物学等领域的研究。但最近在许多鸟类的线粒体中都发现控制区存在重复拷贝，并且2个控制区拷贝之间的碱基相似度较高。因此在扩增其中一个控制区基因时可能受到另一个控制区的干扰，而对研究结果产生影响。本研究主要针对隼形目鸟类线粒体DNA(mtDNA)基因组中控制区重复及由此产生的基因重排现象进行研究，初步探讨控制区重复和基因重排产生的过程和机制。 本次实验首次对鹰科中的白头鹞(Circusaeruginosus)、日本松雀鹰 ...
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Representation of obligate groundwater‐dwelling copepod diversity in European protected areas
Conservation Biology, EarlyView.Abstract Groundwaters sustain diverse surface ecosystems and are populated by metazoan species, mostly invertebrates, that provide fundamental ecological functions and are often of prominent conservation value due to narrow endemism and high phylogenetic rarity.
Francesco Cerasoli +7 more
wiley +1 more source