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Is bigger better？ Male body size affects wing-borne courtship signals and mating success in the olive fruit fly, Bactrocera oleae （Diptera： Tephritidae）

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Insect Science 2016年第6期23卷 869-880页

作者： Giovanni Benelli Elisa Donati Donato Romano Giacomo Ragni Gabriella Bonsignori Cesare Stefanini Angelo Canale Insect Behaviour Group Department of Agriculture Food and Environment University of Pisa Pisa The BioRobotics Institute Sant'Anna School of Advanced Studies Pontedera Italy

Variations in male body size are known to affect inter- and intrasexual selection outcomes in a wide range of animals. In mating systems involving sexual signaling before mating, body size often acts as a key factor affecting signal strength and mate choice. We evaluated the effect of male size on courtship displays and mating success of the olive fruit fly, Bactrocera oleae （Diptera： Tephritidae）. Wing vibrations performed during successful and unsuccessful courtships by large and small males were recorded by high-speed videos and analyzed through frame-by-frame analysis. Mating success of large and small males was investigated. The effect of male-male competition on mating success was evaluated. Male body size affected both male courtship signals and mating outcomes. Successful males showed wing-borne signals with high frequencies and short interpulse intervals. Wing vibrations displayed by successful large males during copulation attempt had higher frequencies over smaller males and unsuccessful large males. In no-competition conditions, large males achieved higher mating success with respect to smaller ones. Allowing large and small males to compete for a female, large males achieve more mating success over smaller ones. Mate choice by females may be based on selection of the larger males, able to produce high-frequency wing vibrations. Such traits may be indicative of ＂good genes,＂ which under sexual selection could means good social-interaction genes, or a good competitive manipulator of conspecifics.

关键词： communication channels courtship call male-male competition mate choice sexual selection social resources

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Building patients’trust in psychologists in online mental health communities

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Data Science and Management 2022年第1期5卷 21-27页

作者： Hong Wu Zhaohua Deng Richard Evans School of Medicine and Health Management Tongji Medical CollegeHuazhong University of Science and TechnologyWuhan430074China School of Management Huazhong University of Science and TechnologyWuhan430074China Dalhousie University B3H 4R2Canada

Sufferers’mental illnesses experience changes in communication,cognition,and behavior,exposing differences in social behavior and *** who suffer from mental health problems notice that the reduced communication ability leads to social inclusion and distrust of *** Mental Health Communities(OMHCs)facilitate a new means of communication between patients and *** on the trust source credibility framework,trust transitivity theory,social resources and physician-patient interactions,this study aims to evaluate the factors that influence patients’trust in *** crawled the data from ***,the leading healthcare community platform in China,to study the factors that influence patients’trust using the ordinary least squares regression method.725 psychologists’records were collected on 19 November,2019,20 December,2019,and 20 May,*** with face-to-face physician appointments,Chief Physicians are more likely to gain patients’initial trust ***,psychologists’integrity,online reputation,and group size have significant positive impact on the initial trust of ***,patients’online initial trust and efforts have significantly positive influences on their continuous trust *** improve relationships between physicians and patients,physicians must strengthen their clinical abilities and be honest with *** findings of this study provide insights into the factors that influence patients’trust in OMHCs.

关键词： Patients’trust Trust source credibility model Trust transitivity social resources Physician-patient interaction Online mental health community

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Measurement Research Based on Bayesian Structural Equation Cognitive Model

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Journal of Applied Mathematics and Physics 2024年第4期12卷 1163-1177页

作者： Shuixian Fei Sanzhi Shi Jixin Li Jiali Zheng Xinyi Yu Yifan Huang Xiang Li School of Mathematics and Statistics Changchun University of Science and Technology Changchun China

The Bayesian structural equation model integrates the principles of Bayesian statistics, providing a more flexible and comprehensive modeling framework. In exploring complex relationships between variables, handling uncertainty, and dealing with missing data, the Bayesian structural equation model demonstrates unique advantages. Therefore, Bayesian methods are used in this paper to establish a structural equation model of innovative talent cognition, with the measurement of college students’ cognition of innovative talent being studied. An in-depth analysis is conducted on the effects of innovative self-efficacy, social resources, innovative personality traits, and school education, aiming to explore the factors influencing college students’ innovative talent. The results indicate that innovative self-efficacy plays a key role in perception, social resources are significantly positively correlated with the perception of innovative talents, innovative personality tendencies and school education are positively correlated with the perception of innovative talents, but the impact is not significant.

关键词： Bayesian Structural Equation Model Innovative Talents Measure of Cognition Innovative Self-Efficacy social resources

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