基于两方博弈关系分析的医保制度改进策略研究

针对医保制度实施以来的实际运作情况,从博弈角度分析了医保基金缴纳和使用异常行为出现的原因;并从改变博弈均衡解的角度提出了有效引导企业、医患、医院走出异常的一系列措施:建立针对企业、医患、医院的黑名单制度,通过信息共享降低监督成本,将服务质量纳入与医院的结算办法等.     

Prevalence and psychosocial correlates of forced sexual intercourse among U.S. high school adolescents

Although a history of forced sexual intercourse affects a relatively small number of U.S. adolescents, it is a persistent and alarming public health problem. This study examined the robustness of the risk profile of adolescents who report a history of forced sexual intercourse using the most current and representative data from the national 2005 Youth Risk Behavior Survey. Overall, 8.01% of high school adolescents reported a history of forced sexual intercourse. The lifetime prevalence for females (10.3%) was roughly twice of that for males (4.8%). Important differences in the risk profile associated with forced sexual intercourse were found by gender.     

植入前组织配型孕育"救星同胞"的伦理思考

应用植入前遗传学诊断技术在胚胎植入母体子宫前,对人类白细胞组织相容性抗原配型检测,选择与现存患儿相同HLA配型的胚胎进行受孕,孕育一个组织配型相同的脐带血干细胞供者.在某种意义上说,该项技术的应用是创造人来获得移植组织,由此引发系列伦理争议.讨论孕育"救星同胞"这一医学实践内在需要的伦理规范.     

妇科腹腔镜发展的回顾与思考

腹腔镜在外科学的运用使妇科手术学进行了一次革命.无论是诊断、治疗的准确性还是手术的微创方面,都显示其独特的优势.然而腹腔镜在普外科运用的发展过渡到妇科手术的运用,经历了一个漫长的过程,其中经过冷落时期.腹腔镜的最终得到较完善用于临床,体现了人类认识事物从简单到复杂、认识、提高、再认识的一个辨证的过程.腹腔镜技术并不是我们追求的最终目的,它仅是无创技术的过度阶段,最终取代它的是无创技术,如用物理、化学、基因等治疗手段.     

谈判者第一次出价对谈判破裂的影响：角色的调节作用

谈判者在大多数情况下都希望能顺利达成协议,但很多时候多种因素使得谈判进入僵局或者破裂。本研究利用模拟谈判的手段,综合考察了第一次出价对谈判破裂的影响。很多谈判者出于害怕吃亏或者希望获得更多收益,向对手提出较高的第一次开价。研究一证明第一次出价越高,谈判越容易失败。有趣的是,第一次开价的高低与谈判破裂之间的关系会受到谈判角色的影响,谈判者的权力不同会使得他们的第一次开价具有不同的作用。研究二证实,当谈判双方权力不对等时,第一次出价对谈判破裂的负面作用受到了权力的影响。弱者的第一次出价越高,谈判越容易破裂。中介分析表明,当弱者出价较高时,容易让对方感到竞争性过强,因此不愿意达成协议。本研究不仅丰富了谈判破裂和第一次出价的理论研究,而且对于谈判者具有实践意义     

药价"虚高":成因、结果分析与对策探讨

药品价格"虚高"已成为近年来药品市场中的一个突出问题.通过考量药价"虚高"的成因,并从实证的角度分析药价"虚高"的结果--"有效需求人数"和"消费者剩余"的减少,提出一些建议.     

Neurofeedback training with virtual reality for inattention and impulsiveness.

In this research, the effectiveness of neurofeedback, along with virtual reality (VR), in reducing the level of inattention and impulsiveness was investigated. Twenty-eight male participants, aged 14-18, with social problems, took part in this study. They were separated into three groups: a control group, a VR group, and a non-VR group. The VR and non-VR groups underwent eight sessions of neurofeedback training over 2 weeks, while the control group just waited during the same period. The VR group used a head-mounted display (HMD) and a head tracker, which let them look around the virtual world. Conversely, the non-VR group used only a computer monitor with a fixed viewpoint. All participants performed a continuous performance task (CPT) before and after the complete training session. The results showed that both the VR and non-VR groups achieved better scores in the CPT after the training session, while the control group showed no significant difference. Compared with the other groups, the VR group presented a tendency to get better results, suggesting that immersive VR is applicable to neurofeedback for the rehabilitation of inattention and impulsiveness.     

“I know you can do this” versus “How can you be so stupid?” Feedback among Chinese and American young adult friends

According to past research, young adults prefer positive feedback from their friends, but emotional reactions to negative feedback are less severe in Korea than in the United States. We extended this past work in several ways: We studied both giving and receiving feedback, recruited Chinese young adults, used realistic scenarios, and employed the situation‐sampling method. Using text‐message‐based vignettes, Study 1 found that both American and Chinese friends used happy emojis when exchanging positive feedback whereas Americans used less positive emojis than did the Chinese when exchanging negative feedback. We then collected actual examples of feedback that people had given to their friends (Study 2a) and showed them to new samples of Chinese and American young adults (Study 2b). This situation‐sampling methodology found that (a) Americans rated negative feedback from both cultures especially negatively, and (b) negative feedback examples from China were rated especially negatively by people in both cultures. That is, although Chinese negative feedback is seemingly more harsh, Chinese young adults do not react as negatively.     

青少年问题性社交网络使用

青少年问题性社交网络使用是世界范围内受到普遍关注的问题。问题性社交网络使用常被称作“社交网络成瘾”、“病理性社交网络使用”或“社交网络过度使用”, 概念和界定标准还没有达成一致看法。青少年合理的社交网络使用对促进社交关系的建立、维持和发展有积极意义, 但问题性社交网络使用却对青少年的身心发展产生消极影响。对青少年问题性社交网络使用发生机制的探讨, 将为问题性社交网络的干预引导提供依据。未来的研究应对问题性社交网络使用的概念和界定标准进行澄清, 用多维视角的方法开展问题性社交网络使用发生机制的深入研究, 加强对问题性社交网络使用的理论建构和干预研究。     

The influence of orthographic experience on the development of phonological preparation in spoken word production

Three sets of experiments using the picture naming tasks with the form preparation paradigm investigated the influence of orthographic experience on the development of phonological preparation unit in spoken word production in native Mandarin-speaking children. Participants included kindergarten children who have not received formal literacy instruction, Grade 1 children who are comparatively more exposed to the alphabetic pinyin system and have very limited Chinese character knowledge, Grades 2 and 4 children who have better character knowledge and more exposure to characters, and skilled adult readers who have the most advanced character knowledge and most exposure to characters. Only Grade 1 children showed the form preparation effect in the same initial consonant condition (i.e., when a list of target words shared the initial consonant). Both Grade 4 children and adults showed the preparation effect when the initial syllable (but not tone) among target words was shared. Kindergartners and Grade 2 children only showed the preparation effect when the initial syllable including tonal information was shared. These developmental changes in phonological preparation could be interpreted as a joint function of the modification of phonological representation and attentional shift. Extensive pinyin experience encourages speakers to attend to and select onset phoneme in phonological preparation, whereas extensive character experience encourages speakers to prepare spoken words in syllables.