Genetic and environmental effects on sexual excitation and sexual inhibition in men

The Sexual Inhibition and Sexual Excitation Scales (SIS/SES) measure the propensity for sexual inhibition and excitation in men. According to the theoretical model underlying the SIS/SES, sexual response and associated behavior depend on dual control mechanisms in the brain involving the balance of excitatory and inhibitory systems which impinge on sexual response. Previous research with the SIS/SES has indicated one higher-order excitatory factor and two higher-order inhibitory factors affecting sexual response. The present study analyzed the item structure and the psychometric properties of the instrument in a population based sample of Finnish male twins (N = 1,289), and, including 37 out of 45 items of the original scales, estimated the heritability of and the environmental influences on the excitatory and inhibitory mechanisms. The twin correlations and the structural equation modeling suggested modest heritability for both inhibitory mechanisms. Sexual excitation, in contrast, was not influenced by genetic effects and similarities between twins for this mechanism seemed to be caused by the common environment of the twins.     

支付让渡权、可信威胁与技术转让竞合格局

中国大量企业借助技术转让推进技术创新,理清技术转让谈判要素对技术转让竞合格局的影响,研究技术转让交互策略显得尤为重要。梳理已有研究,构建纳什谈判博弈模型,基于平等主义和功利主义测度局中人支付值;引入支付让渡权和可信威胁假设,基于最小化最大值理论和差分博弈求得两种新解;基于中国奇瑞汽车公司的实际数据,验证3种均衡解的存在性,探讨其差异性根源。研究结果表明,纳什谈判博弈均衡解是功利主义原则和平等主义原则的折衷;对于引进方而言,支付让渡权及可信威胁条件下的新均衡解都优于一般均衡解,而且支付让渡权相对于可信威胁对引进方更有利;3种均衡解的差异性源于3种基础性均衡理论,3种基础性均衡理论分别适用于不同的技术转让谈判情境,并产生竞合格局的差别。研究结论有助于设计技术转让攻防策略和可信威胁,强化技术转让竞合格局,提高技术转让绩效,推动引进方技术进步。