检索结果-南通市图书馆

Sex differences in color discrimination and serial reversal learning in mollies and guppies

Current Zoology 2019年第3期65卷 323-332页

作者： Theodora FUSS klaudia witte Research Group of Ecology and Behavioral Biology Institute of Biology Department of Chemistry and Biology University of Siegen Adolf-Reichwein-Str. 2 57076 Siegen Germany

Behavioral flexibility provides an individual with the ability to adapt its behavior in response to environmental changes. Studies on mammals, birds, and teleosts indicate greater behavioral flexibility in females. Conversely, males appear to exhibit greater behavioral persistenee. We, therefore, investigated sex differences in behavioral flexibility in 2 closely related molly species (Poecilia latipinna, P. mexicana) and their more distant relative, the guppy P. reticulata by comparing male and female individuals in a serial, visual reversal learning task. Fish were first trained in color discrimination, which was quickly learned by all females (guppies and mollies) and all molly males alike. Despite continued training over more than 72 sessions, male guppies did not learn the general test procedure and were, therefore, excluded from further testing. Once the reward contingency was reversed serially, molly males of both species performed considerably better by inhibiting their previous response and reached the learning criterion sign讦icantly faster than their respective con specific females. Moreover, Atlantic molly males clearly outperformed all other individuals (males and females) and some of them even reached the level of 1-trial learning. Thus, the apparently un iversal pattern of higher female behavioral flexibility seems to be in verted in the 2 examined molly species, although the evolutionary account of this pattern remains highly speculative. These findings were complemented by the observed lower neophobia of female sailfin mollies compared with their male con specifics. This sex differe nee was not observed in Atlantic mollies that were observed to be sigrdficantly less distressed in a novel situation than their consexuals. Hypothetically, sex differences in behavioral flexibility can possibly be explained in terms of the different roles that males and females play in mating competition, mate choice, and reproduction or, more gen erally, in complex socia

关键词： behavioural and cognitive flexibility colour discrimination neophobia serial reversal learning/Poecilia mexicana and Poecilia latipinna Poecilia reticulata

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

(Under)water love-linking mate choice and cognition in fish and frogs

引用

Current Zoology 2019年第3期65卷 279-284页

作者： Theodora FUSS klaudia witte Research Group of Ecology and Behavioral Biology Institute of BiologyDepartment of Chemistry and Biology University of Siegen Adolf-Reichwein-Str. 257076 SiegenGermany

Aims and Objectives This Special Column aims at complementing our knowledge and deepening our understanding of the complex processes involved in learning and neurobiological mechanisms in the context of sexual selection.

关键词： learning neurobiological mechanisms sexual selection

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

Mate-choice copying： Status quo and where to go

引用

Current Zoology 2015年第6期61卷 1073-1081页

作者： klaudia witte Nina KNIEL Ilka Maria KURECK Research Group of Ecology and Behavioral Biology Institute of Biology University of Siegen 57068 Siegen Germany

Mate-choice copying is a fascinating and widespread mate-choice strategy. Individuals gather public information about potential mates by observing others during sexual interactions and choose or reject the same individual as a mate as the observed individual did before. The influence of copying behavior on an individual＇s mate choice can be so strong that socially acquired information can override genetically based preferences for certain phenotypes. Thus, mate-choice copying enforces dy- namic processes in sexual selection. Here, we review the current state of research on mate-choice copying and focus on sex-specific aspects. We present evidence that mate-choice copying can support the evolution of novel sexual ornaments, and we discuss potential costs of mate-choice copying when public information is not reliable. Moreover, we discuss the conflict faced by males that copy since mate-choice copying increases sperm competition. In conclusion we suggest interesting topics for future research in mate-choice copying .

关键词： Mate-choice copying Public information Audience effect Sperm competition Novel ornaments

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

Virtual is the new reality

引用

Current Zoology 2017年第1期63卷 1-4页

作者： klaudia witte Stefanie GIERSZEWSKI Laura CHOUINARD-THULY Guest Editors Research Group of Ecology and Behavioral Biology Department of Chemistry and Biology Institute of BiologyUniversity of Siegen Adolf-Reichwein-Str. 2 Siegen 57068 Germany Department of Biology McGill University 1205 Docteur Penfield Montreal Quebec Canada H3A 1B1

The ideal animal stimulus is under total control of the experimenter,has visual traits, and behavior patterns that can be varied in anyway, and it appears and behaves consistently between test trials thatcan be easily repeated many times and any time. Does this soundlike wishful thinking of a biologist？ Using and exploiting the poten-tial of artificial stimuli in animal behavior research is actually not anew idea.

关键词：动物刺激实验视觉特征行为模式人工刺激

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

The virtual lover： variable and easily guided 3D fish animations as an innovative tool inmate-choice experiments with sailfinmollies-II. Validation

引用

Current Zoology 2017年第1期63卷 65-74页

作者： Stefanie GIERSZEWSKI Klaus MuLLER levgen SMIELIK Jan-Marco HUTWOHL Klaus-Dieter KUHNERT klaudia witte Research Group of Ecology and Behavioral Biology Institute of Biology University of Siegen Adolf-Reichwein- StraBe 2 Siegen 57068 Germany Institute of Real-Time Learning Systems Department of ElectricalEngineering & Computer Science University of Siegen HSIderlinstraBe 3 Siegen 57076 Germany

The use of computer animation in behavioral research is a state-of-the-art method for designing andpresenting animated animals to live test animals. The major advantages of computer animations are：（1） the creation of animated animal stimuli with high variability of morphology and even behavior; （2）animated stimuli provide highly standardized, controlled and repeatable testing procedures; and （3）they allow a reduction in the number of live test animals regarding the 3Rs principle. But the use of ani-mated animals should be attended by a thorough validation for each test species to verify that behaviormeasured with live animals toward virtual animals can also be expected with natural stimuli. Here wepresent results on the validation of a custom-made simulation for animated 3D sailfin mollies Poecilialatipinna and show that responses of live test females were as strong to an animated fish as to a videoor a live male fish. Movement of an animated stimulus was important but female response was stron-ger toward a swimming 3D fish stimulus than to a ＂swimming＂ box. Moreover, male test fish wereable to discriminate between animated male and female stimuli; hence, rendering the animated 3D fisha useful tool in mate-choice experiments with sailfin mollies.

关键词： computer animation, fish behavior, mate-choice experiment, validation, virtual fish model.

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

The virtual lover： variable and easily guided 3D fish animations as an innovative tool inmate-choice experiments with sailfin mollies-I,Design and implementation

引用

Current Zoology 2017年第1期63卷 55-64页

作者： Klaus MuLLER Jevgen SMIELIK Jan-Marco HOTWOHL Stefanie GIERSZEWSKI klaudia witte Klaus-Dieter KUHNERT Department of Electrical Engineering & Computer Science Institute of Real-Time Learning Systems University of Siegen HSIderlinstraBe 3 Siegen 57076 Germany Research Group of Ecology and Behavioral Biology Institute of Biology University of Siegen Adolf-Reichwein-Stral~e 2 Siegen 57068 Germany

Animal behavior researchers often face problems regarding standardization and reproducibility oftheir experiments. This has led to the partial substitution of live animals with artificial virtual stim-uli. In addition to standardization and reproducibility, virtual stimuli open new options for re-searchers since they are easily changeable in morphology and appearance, and their behavior canbe defined. In this article, a novel toolchain to conduct behavior experiments with fish is presentedby a case study in sailfin mollies Poecilia latipinna. As the toolchain holds many different and novelfeatures, it offers new possibilities for studies in behavioral animal research and promotes thestandardization of experiments. The presented method includes options to design, animate, andpresent virtual stimuli to live fish. The designing tool offers an easy and user-friendly way to definesize, coloration, and morphology of stimuli and moreover it is able to configure virtual stimuli ran-domly without any user influence. Furthermore, the toolchain brings a novel method to animatestimuli in a semiautomatic way with the help of a game controller. These created swimming pathscan be applied to different stimuli in real time. A presentation tool combines models and swim-ming paths regarding formerly defined playlists, and presents the stimuli onto 2 *** with live sailfin mollies validated the usage of the created virtual 3D fish models inmate-choice experiments.

关键词： computer animation, fish behavior, mate-choice experiment, research tool, virtual fish model.

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

Technical and conceptual considerations forusing animated stimuli in studies of animalbehavior

引用

Current Zoology 2017年第1期63卷 5-19页

作者： Laura CHOUINARD-THULY Stefanie GIERSZEWSKI Gil G. ROSENTHAL Simon M. READER Guillaume RIEUCAU Kevin L. Woo Robert GERLAI Cynthia TEDORE Spencer J. INGLEY John R. STOWERS Joachim G.FROMMENI Francine L. DOLINS klaudia witte Department of Biologv McGill University 1205 Docteur Penfield Montreal Quebec Canada H3A 1B1 Research Group of Ecology and Behavioral Biology Institute of Biology University of Siegen Adolf-Reichwein Str. 2 Siegen 57068 Germany Ecology & Evolutionary Biology Texas A&M University 3258 TAMU College Station TX 77843 USA Centro de Investigaciones Cientfficas de las Huastecas "Aguazarca" Calnali Hidalgo Mexico Departmentof Biological Sciences Florida International University 3000 Northeast 151 Street North Miami FL 33181 USA SUNY Empire State College Metropolitan Center 325 Hudson Street New York NY 10013-1005 USA Departmentof Psychology University of Toronto Mississauga 3359 Mississauga Road Mississauga Ontario Canada L5L 1C6 Lund Vision Group Department of Biology Lund University SSIvegatan 35 Lund 22362 Sweden Department of Biology University of North Carolina at Chapel Hill CB#3280 Coker Hall Chapel Hill NC 27599 USA Research Institute of Molecular Pathology IMP Vienna Biocenter VBC Dr. Bohr-Gasse 7 Vienna 1030 Austria loopbiogmbh Hauptstrasse 93 Kritzendorf 3420 Austria Department of Behavioural Ecology Institute of Ecology and Evolution University of Bern Wohlenstrasse 50a Hinterkappelen 3032 Switzerland Department of Behavioral Sciences University of Michigan-Dearborn 4901 Evergreen Road Dearborn MI 48128 USA

Rapid technical advances in the field of computeropened new avenues in animal behavior *** （CA） and virtual reality （VR） haveAnimated stimuli are powerful tools as theyoffer standardization, repeatability, and complete control over the stimulus presented, thereby＂reducing＂ and ＂replacing＂ the animals used, and ＂refining＂ the experimental design in line withthe 3Rs. However, appropriate use of these technologies raises conceptual and technical *** this review, we offer guidelines for common technical and conceptual considerations related tothe use of animated stimuli in animal behavior research. Following the steps required to create ananimated stimulus, we discuss （I） the creation, （11） the presentation, and （111） the validation of CAsand VRs. Although our review is geared toward computer-graphically designed stimuli, consider-ations on presentation and validation also apply to video playbacks. CA and VR allow both new be-havioral questions to be addressed and existing questions to be addressed in new ways, thus weexpect a rich future for these methods in both ultimate and proximate studies of animal behavior.

关键词： animal behavior, animated stimulus, computer animation, experimental design, virtual reality, visual communication.

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

Graphene-calcium carbonate coating to improve the degradation resistance and mechanical integrity of a biodegradable implant

引用

Journal of Magnesium and Alloys 2024年第1期12卷 394-404页

作者： Lokesh Choudhary Parama Chakraborty Banerjee R.K.Singh Raman Derrek E.Lobo Christopher D.Easton Mainak Majumder Frank witte Jörg F.Löffler Department of Mechanical and Aerospace Engineering Monash UniversityClayton CampusMelbourneVIC 3800Australia Department of Chemical and Biological Engineering Monash UniversityClayton CampusMelbourneVIC 3800Australia Nanoscale Science and Engineering Laboratory(NSEL) Bldg 37Monash UniversityClayton CampusMelbourneVIC 3800Australia CSIRO Materials Science and Engineering Bayview AvenueClaytonVIC 3168Australia Julius Wolff Institute and Berlin Brandenburg Center for Regenerative Therapies Charité–Universitätsmedizin BerlinAugustenburger Platz 113353 BerlinGermany Laboratory of Metal Physics and Technology Department of MaterialsETH Zurich8093 ZurichSwitzerland

Biodegradable implants are critical for regenerative orthopaedic procedures,but they may suffer from too fast corrosion in human-body *** necessitates the synthesis of a suitable coating that may improve the corrosion resistance of these implants without compromising their mechanical *** this study,an AZ91 magnesium alloy,as a representative for a biodegradable Mg implant material,was modified with a thin reduced graphene oxide(RGO)-calcium carbonate(CaCO_(3))composite *** analytical and in-vitro electrochemical characterization reveals that this coating significantly improves the corrosion resistance and mechanical integrity,and thus has the potential to greatly extend the related application field.

关键词： Graphene coating Biodegradable implant Hydroxyapatite Corrosion Magnesium alloy

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

Biological and clinical aspects of HPV-related cancers

引用

Cancer Biology & Medicine 2020年第4期17卷 864-878页

作者： klaudia Anna Szymonowicz Junjie Chen Department of Experimental Radiation Oncology The University of Texas MD Anderson Cancer CenterHoustonTX 77030USA

Cancer-related diseases represent the second overall cause of death *** papilloma virus(HPV)is an infectious agent which is mainly sexually transmitted and may lead to HPV-associated cancers in both men and *** all cervical cancers are HPV-associated,however,an increasing number of head and neck cancers(HNCs),especially oropharyngeal cancer,can be linked to HPV ***,anogenital cancers,including vaginal,vulvar,penial,and anal cancers,represent a subset of HPVrelated *** testing and prevention of cervical cancer have significantly improved over past decades,anogenital cancers remain more difficult to *** clinical trials including patients with HPV-related cancers focus on finding proper testing for all HPV-associated cancers as well as improve the currently applied *** HPV viral oncoproteins,E6 and E7,lead to degradation of,respectively,p53 and pRb resulting in entering the S phase without G1 *** high-risk HPV viral oncogenes alter numerous cellular processes,including DNA repair,angiogenesis,and/or apoptosis,which eventually result in ***,a comprehensive analysis of gene expression and alteration among a panel of DNA double strand breaks(DSB)repair genes in HPV-negative and HPV-positive HNC cancers reveals differences pointing to HPV-dependent modifications of DNA repair processes in these *** this review,we discuss the current knowledge regarding HPV-related cancers,current screening,and treatment options as well as DNA damage response-related biological aspects of the HPV infection and clinical trials.

关键词： Human papillomavirus(HPV) cervical cancer HNC DNA repair clinical trials cancer statistics

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

Scale up of reactors for carbon dioxide reduction

引用

Frontiers of Chemical Science and Engineering 2023年第1期17卷 116-122页

作者： Andrew Nattestad klaudia Wagner Gordon G.Wallace Intelligent Polymer Research Institute and ARC Centre of Excellence for Electromaterials Science University of WollongongWollongong NSW 2522Australia School of Chemistry Monash UniversityClayton VIC 3800Australia

In recent times there has been a great deal of interest in the conversion of carbon dioxide into more useful chemical *** the other hand,the translation of these developments in electrochemical reduction of carbon dioxide from the laboratory bench to practical scale remains an underexplored *** we examine some of the major challenges,demonstrating some promising strategies towards such scale-up,including increased electrode area and stacking of electrode pairs in different *** observed that increasing the electrode area from 1 to 10 cm^(2) led to only a 4%drop in current density,with similarly small penalties realised when stacking sub-cells together.

关键词： CO_(2)reduction electrochemical cell electrosynthesis upscaling

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：