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Revealing the control of migratory fueling： An integrated approach combining laboratory and field studies in northern wheatears Oenanthe oenanthe

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Current Zoology 2013年第3期59卷 381-392页

作者： Franz BAIRLEIN Volker DIERSCHKE Julia DELINGAT cas eikenaar Ivan MAGGINI Marc BULTE Heiko SCHMALJOHANN Institute of Avian Research "Vogelwarte Helgoland" Wilhelmshaven Germany Gavia EcoResearch Toennhaeuser Dorfstr. 20 21423 Winsen (Luhe) Germany Advanced Facility for Avian Research University of Western Ontario 1151 Richmond Street London ON N6G 1G9 Canada

Migratory birds rely on fueling prior to migratory flights. Fueling in migrants is controlled by intrinsic as well as ex- trinsic factors. From captive studies we have started understanding the internal mechanisms controlling bird migration. Field studies have demonstrated the effects of external factors, such as food availability, weather, competitors, parasites or diseases, on the stopover behavior of migrants. However, an integrated approach is still missing to study coherently how the innate migration program interacts with the varying environmental cues and to estimate the contribution of the innate migration program and the environment to realized migration. The northern wheatear Oenanthe oenanthe offers a unique opportunity for integrated studies. It breeds across almost the whole Holarctic with just a ＂gap＂ between eastern Canada and Alaska. All breeding populations over- winter in sub-Saharan Africa which makes the northern wheatear one of the most long-distant migratory songbirds with extraor- dinary long non-stop flights across oceans. It is a nocturnal migrant which travels without parental or social aid/guidance. Thus, young birds rely entirely on endogenous mechanisms of timing, route selection and fueling on their first outbound migration. By establishing indoor housing under controlled conditions the endogenous control mechanisms of northern wheatear migration could be revealed. At the same time, environmental factors controlling fueling could be investigated in the field. On migration wheatears occur in a variety of habitats with sparse vegetation where their stopover behavior could be quantitatively studied in the light of ＂optimal migration＂ theory by the use of remote balances, radio-tagging and even experimentally manipulated food availability. The present paper summarizes our approach to understand the control of migration in northern wheatears by combin- ing field and laboratory studies at various spatial and temporal scales, and linking vario

关键词： Oenanthe oenanthe Fueling Stopover Optimal migration Predation risk Endogenous control Innate program Nocturnal restlessness Corticosterone

Corrigendum to: Not just fuel: energy stores are correlated with immune function and oxidative damage in a long-distance migrant

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Current Zoology 2021年第3期67卷 349-349页

作者： cas eikenaar Arne Hegemann Florian Packmor Iris Kleudgen Caroline Isaksson 不详

Current Zoology 2019 doi:10.1093/cz/zoz009 Advance Access Publication Date:7 March 2019.

关键词： Access stores damage

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全新的模拟计算机

科技纵览 2024年第1期 16-18页

作者： Stephen cas 不详

过去,读者打开本刊就可以看到模拟计算机的整版广告,宣传它们的易用性和便携性,可以内置到带轮推车中。工程师连接电位计和运算放大器,建立棘手的微分方程式,读取不同的输出电压,作为其解。但后来数字计算机取得了完全的成功,模拟计算... 详细信息

过去,读者打开本刊就可以看到模拟计算机的整版广告,宣传它们的易用性和便携性,可以内置到带轮推车中。工程师连接电位计和运算放大器,建立棘手的微分方程式,读取不同的输出电压,作为其解。但后来数字计算机取得了完全的成功,模拟计算像无线电检波器、机械电视和穿孔卡片一样几乎完全被淘汰。

关键词：数字计算机穿孔卡片模拟计算机微分方程式运算放大器易用性电位计便携性

WORKING REPORT AT THE 7TH GENERAL ASSEMBLY OF THE cas

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Bulletin of the Chinese Academy of Sciences 1995年第1期9卷 20-28页

作者： Zhou Guangzhao( cas President and Chairman of Executive Committee of the cas Presidium )

Members and comrades: The Seventh General Assembly of the cas opened here today together with the meeting for the establishment of the Chinese Academy of Engineering (the CAE).The establishment of the CAE is an important event for the S&.T community in this *** allow *** behalf of the *** extend my congratulations to the CAE on its official founding.

关键词： WORKING REPORT AT THE 7TH GENERAL ASSEMBLY OF THE cas AT

A SPEECH AT THE NEWS CONFERENCE FOR THE 1995 BY-ELECTION OF cas MEMBERSHIP DELIVERED ON SEPTEMBER 3,1995

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Bulletin of the Chinese Academy of Sciences 1996年第1期10卷 1-3页

作者： Zhou Guangzhao(Executive Chairman of cas Presidium & cas President)

Today, the Chinese Academy of Sciences is holding a news conference under this roof to publicize the results of the 1995 by-election of cas *** this opportunity,I would like to extend a cordial welcome to you, present at this meeting,and thank you for your long-term support and unflagging concern for our Academy’s work in various aspects. In line with the stipulations of the Constitution of

关键词： cas NEWS A SPEECH AT THE NEWS CONFERENCE FOR THE 1995 BY-ELECTION OF cas MEMBERSHIP DELIVERED ON SEPTEMBER 3,1995 AT

THE RESEARCH INSTITUTES AFFILIATED TO THE cas IN HEFE1 AREA, ANHUI PROVINCE

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Bulletin of the Chinese Academy of Sciences 1995年第2期9卷 196-200页

作者： (Hefei Branch, the cas)

The Hefei Branch of the cas is an R&D base specializing in basic research and applied developmentof technological physics, established by the cas in the area of Hefei City,capital of Anhui *** is situated beside the Dongpu Reservoir in the western suourb of the City’s downtown area,covering 186.7 hectares in total area. At present, the Branch consists of five subordinate *** Branch organ, the Anhui Institute of Optics & Fine Mechanics, the Institute of Plasma Physics, the Institute of Solid-state Physics and the Institule of Intel-

关键词： cas ANHUI PROVINCE THE RESEARCH INSTITUTES AFFILIATED TO THE cas IN HEFE1 AREA

Measurement and significance of sperm morphology

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Asian Journal of Andrology 2011年第1期13卷 59-68页

作者： Roelof Menkveld cas AG Holleboom Johann PT Rhemrev Andrology Laboratory Department of Obstetrics and Gynaecology Tygerberg Academic Hospital and University of Stellenbosch Tygerberg 7505 South Africa Department of Obstetrics and Gynecology Bronovo Hospital The Hague 2597AX The Netherlands

The measurement or evaluation and clinical significance of human sperm morphology has always been and still is a controversial aspect of the semen analysis for the determination of a male＇s fertility potential. In this review the background of the development of the evaluation criteria for sperm morphology will be discussed. Aspects of criticism on the strict criteria definition and use of the criteria for sperm morphology evaluation will be discussed as well as possible reasons for the decline in normal sperm morphology values and how we can compromise for this phenomenon resulting in the very low normal reference value as published in the 2010 WHO manual for the Examination and Processing of Human Semen. One of the possible solutions may be to give more attention to a limited number of abnormal sperm morphology categories and the inclusion of sperm morphology patterns. It is concluded in this review that if done correctly and with care and with strict application of existing guidelines as outlined in the 2010 WHO manual, sperm morphology measurement still has a very important role to play in the clinical evaluation of male fertility potential.

关键词： human sperm morphology male fertility potential strict criteria traditional or liberal criteria WHO manual for semen analysis

ANNUAL WORKING REPORT OF cas DIVISION OF BIOLOGY (Abridged)

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Bulletin of the Chinese Academy of Sciences 1997年第1期11卷 20-24页

作者： Zou Chenglu cas member and director of the cas Division of Biology.

Ⅰ. A REVIEW OF OUR WORK FROM 1994 TO 1996 1. Entrusted by the CPC central committee and the State Council, our Division completed its counseling assignments to the "Decision on Speeding up China’s S&T Progress Jointly Decreed by the Party’s Central Committee and the State Council," "An Outlined Report on the Train of Thought for Devising S&T Development in the National Ninth Five-year Plan & the Long-term Scheme for National S&T Development up to 2010," "The Ninth Five-year Plan and Long-term Scheme for National S&T(?)

关键词： cas ANNUAL WORKING REPORT OF cas DIVISION OF BIOLOGY Abridged

Comparisons of Limit Analysis Solutions and Random Search Solutions on Slope Critical Slip Surface

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Communications in Nonlinear Science and Numerical Simulation 1998年第2期3卷 14-19页

作者： Jianfeng WANG (LNM, Institute of Mechanics, cas, Beijing 100080, China) LNM Institute of Mechanics CAS Beijing 100080 China

ＩｎｔｒｏｄｕｃｔｉｏｎＤｅｓｐｉｔｅｔｈｅｄｅｖｅｌｏｐｍｅｎｔｏｆｅｌａｓｔｉｃｐｌａｓｔｉｃｖｉｓｃｏｕｓｎｕｍｅｒｉｃａｌｍｅｔｈｏｄｓｆｏｒｔｈｅａｎａｌｙｓｉｓｏｆｓｌｏｐｅｓ，ｔｒａｄｉｔｉｏｎａｌ... 详细信息

ＩｎｔｒｏｄｕｃｔｉｏｎＤｅｓｐｉｔｅｔｈｅｄｅｖｅｌｏｐｍｅｎｔｏｆｅｌａｓｔｉｃｐｌａｓｔｉｃｖｉｓｃｏｕｓｎｕｍｅｒｉｃａｌｍｅｔｈｏｄｓｆｏｒｔｈｅａｎａｌｙｓｉｓｏｆｓｌｏｐｅｓ，ｔｒａｄｉｔｉｏｎａｌｔｅｃｈｎｉｑｕｅｓｂａｓｅｄｏｎ...

关键词： limit state analysis upper bound theorem random searching slip surface slope stability plasticity