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关键词： 肌肉   生长   生物学规律  

摘要： 动物肌肉的生长是一长期的过程,且受到多种因素的调节。本文从细胞生物学和分子生物学两方面对其生长的一般生物学规律进行了综述。

关键词： 古脊椎动物学   古生物学家   地质   中国   出版社  

摘要： 书桌上放着一本记述杨钟健教授的大书,是杨老的老家西安出版社2008年出版的。封面和书的前面刊登了多幅杨老生前的照片,书中收集了64位有关学者纪念杨老的文章,共约29万字。

关键词： 多媒体技术   动物生物学   教学研究  

摘要： 多媒体这一电化教育手段在目前的各教育领域中已被广泛应用,尤其在大学教育中,多媒体的应用打破了传统的教学模式。这一电化教学手段在大学动物生物学教学中的优势表现在:增强教学过程的直观性;激发学生学习的兴趣;有效提高教学效果;开阔学生视野等方面。正确采用多媒体教学的理念,可使多媒体辅助教学和教师的主导教学相辅相成,相得益彰,达到理想的教学效果。

关键词： 国际学术研讨会   全球变化   动物学   生物学   学会   主办   西双版纳热带植物园   中国科学院  

摘要： 12月4～6日，第四届整合动物学国际研讨会暨全球变化生物学国际学术研讨会在昆明召开。会议由国际动物学会（英文名称：International Society of Zoological Sciences，英文缩写：ISZS）与国际生物科学联合（英文名称：International Union of Biologcial Sciences，英文缩写：IUBS）主办，中国科学院西双版纳热带植物园、中国科学院动物研究所、中国科学院昆明动物研究所、中国动物学会和国际生物科学联合会中国委员会（CCIUBS）承办，

关键词： foregut fermentation   red kangaroo   sheep   ruminant   foraging   behaviour   saltbush   grazing  

摘要： Fermentative digestion in an expanded foregut region has evolved independently among Australia's marsupial kangaroos as well as among placental ruminants. However, notable differences occur in the form and function of the kangaroo and ruminant forestomachs, the main site of fermentation;kangaroos possess a tubiform forestomach, reminiscent of the horse colon, whereas ruminants possess a large vat-like structure. How these differences in gut form might influence kangaroo and sheep ecologies is uncertain. We compared diet choice, apparent digestibility (dry matter), food intake and grazing behaviour of Australia's largest kangaroo, the red kangaroo Macropus rufus and the ruminant sheep Ovis aries. Digestive efficiencies were comparable with other studies, 52% for kangaroos and 59% for sheep, but were not significantly different. Per animal, the smaller red kangaroos (body mass 24 kg) ingested less food than the larger sheep (50 kg), but both species engaged in food harvesting for the same length of time each day (c. 10 h). However, sheep spend additional time re-processing ingesta via rumination, a strategy not used by kangaroos. Kangaroos were more selective in their diet, having a narrower niche compared with sheep. The tubiform forestomach of kangaroos appears to support long foraging bouts, mainly in the evening and early morning;kangaroos rested during the hottest parts of the day. Conversely, sheep feed in short bursts, and gut-filling during feeding bouts is partly dependent on the animal freeing forestomach space by ruminating previous meals, possibly increasing water requirements of sheep through activity and thermal loads associated with more frequent feeding. Water use (L day-1) by kangaroos was just 13% that of sheep, and kangaroos were able to concentrate their urine more effectively than sheep, even though the kangaroos' diet contained a high amount of high-salt chenopods, providing further support for potentially lower grazing impacts of kangaroos compa

关键词： Animals   Drug Discovery   Eukaryotic Cells   Genetic Phenomena   Mammals   Metabolism   Signal Transduction   Systems Biology  

摘要： The article discusses the highlights of third international conference on Systems Biology of Mammalian Cells (SBMC 2010) in Freiburg, Germany on June 3 to 5, 2010. The opening speech was given by Helge Braun, parliamentary state secretary of the German Federal Ministry of Education and Research (BMBF), who emphasised on the significance of Systems Biology in medical research. Adriano Henney, program director of the German Virtual Liver Network, discussed the goals of the network.

关键词： 分析   饲料   食品检验   食品   食品检测   实验室间试验   方法   微生物分析   微生物学   规格试验   规范(验收)   测量要求   试验  

标准号: BS DD CEN ISO/TS 22117-2010

关键词： Cephalopods   North Sea   Abundance   Distribution   Migration  

摘要： Between 2007 and 2009, 132,178 cephalopods were sampled in the North Sea during ICES International Bottom Trawl Surveys. Most abundant were the long-finned squids Alloteuthis subulata (124,751 animals) and Loligo forbesii (3415 animals). Short-finned squids such as Todaropsis eblanae, Todarodes sagittatus and Illex coindetii were rare (195 animals). During winter, A. subulata individuals, mostly immature and maturing, were concentrated in the central and northern parts of the North Sea. In summer, the abundance of A. subulata, mostly maturing and mature, increased in the southeastern part suggesting a southward migration to spawning grounds. L. forbesii individuals, some fully mature, were abundant in the northwestern part of the North Sea during winter indicating spawning areas in this region. In summer, L. forbesii individuals, mostly immature, occurred in lower numbers throughout the North Sea. Our data provide new information on abundance, distribution, migration, and possible recruitment areas of North Sea cephalopods. (C) 2010 Elsevier B.V. All rights reserved.

关键词： systematics overview  

摘要： Papers within the broad designation of systematics have figured prominently in the pages of the Journal of Crustacean Biology in its first 30 years. The journal has had great continuity in its editorial policies and practices, having had only three General Editors in 30 years. Not only has the journal published taxonomic material, but also made available material in a variety of subjects that impinge on understanding the evolution and phylogeny of crustaceans, including cladistic phylogeny, biogeography, comparative anatomy, and issues of natural history. An overview of some highlights from the first 30 volumes of the journal is presented;some prognostications for the future are offered.

关键词： bibliometric analysis   citations   impact factor   journal history  

摘要： This review examines some of the characteristics and highlights some notable articles of the Journal of Crustacean Biology (JCB) in its first 30 years of existence. A total of 2052 articles appeared in JCB from the first issue in February 1981 to the end of 2009. The number of articles by volume increased from 50 in 1981 to 93 in 2002 and then declined to around 70. From 1981 to 2009, article size varied around a mean of 11 pages (pre-2005 format) but mean number of authors and references by article increased by a factor of 1.87 and 2.20, respectively. JCB content is predominated numerically by taxonomy and systematics (36% of all articles), but other research areas (anatomy, physiology, development, growth-reproduction, life history, behavior, ecology, conservation) were also represented from the outset. JCB's 2-year impact factor increased significantly from 1991 to 2009. Longer-term impact of JCB is evident in the fact that almost half of all JCB articles were cited in 2009 and that the mean age of those cited articles was only slightly less than the mean age of all JCB articles (12.6 vs 13.3 years). However, citations to JCB differ widely across research areas, with articles in taxonomy cited on average at less than half the rate of articles in the areas of ecology or conservation. The most cited JCB articles by combination of research area and decade of publication deal primarily with higher crustaceans (malacostracans) and are reviews or original research articles with cross-disciplinary appeal.