An Impossibility Theorem on Beliefs in Games

A paradox of self-reference in beliefs in games is identified, which yields a game-theoretic impossibility theorem akin to Russell’s Paradox. An informal version of the paradox is that the following configuration of beliefs is impossible:Ann believes that Bob assumes thatAnn believes that Bob’s assumption is wrongThis is formalized to show that any belief model of a certain kind must have a ‘hole.’ An interpretation of the result is that if the analyst’s tools are available to the players in a game, then there are statements that the players can think about but cannot assume. Connections are made to some questions in the foundations of game theory.Special Issue Ways of Worlds II. On Possible Worlds and Related Notions Edited by Vincent F. Hendricks and Stig Andur Pedersen     

实施社区首诊制必先做好条件准备

为了解决群众“看病难,看病责”的问题,国家大力发展社区卫生事业。社区首诊制作为其中一项重要的制度被各地纷纷响应,然而由于我国现阶段社区卫生事业基础尚很薄弱,开展社区首诊制的条件还不具备,因此开展起来困难重重。所以现阶段应以完善社区首诊制的基础条件为工作重心。     

Attitudes Toward Fragile X Mutation Carrier Testing from Women Identified in a General Population Survey

Fragile X syndrome is primarily due to a CGG repeat expansion found in the FMR1 X-linked gene. In a previous study, we conducted focus groups with women to assess their attitudes towards fragile X carrier screening. In this follow-up study, we conducted in-depth interviews of general population reproductive-age women who were identified as carriers. We explored their attitudes toward testing for carrier status of the fragile X mutation. These women underwent screening primarily to participate in a research project rather than in search of a diagnosis for specific symptoms. As such, these women were wholly unprepared for positive carrier results. Their responses about their results and carrier screening, in many cases, were being worked out over the course of the interview itself. The most salient finding of this work is the apparent lack of relevance of carrier status to these women. Many expressed that although the information could be relevant in the future, it is not relevant at this stage of their lives in terms of family planning (either with respect to having unaffected offspring or to premature ovarian failure) and personal relationships. Although issues of abortion seemed prominent in the focus groups, we found that carrier status did not have an apparent effect on women’s attitudes about termination. We hypothesize this may be related to the fact that women had not processed their new carrier status and had not related it to previously-formed personal opinions. The findings of this work have significant implications for genetic counseling and population screening. Genetic counselors should be mindful that general population women may not recognize the immediate importance of their carrier status even when literature is provided and discussed prior to providing a sample. As part of comprehensive genetic counseling, counselors should identify the reproductive life stage of the woman receiving the new information and help her identify when this information would be more meaningful in her life. Counselors can assist in setting up a personalized road map with specific types of services that will be more applicable to the woman as her carrier status becomes more relevant.     

Screening for drugs in oral fluid: Illicit drug use and drug driving in a sample of urban and regional Queensland motorists

Police services in a number of Australian states and overseas jurisdictions have begun to implement or consider random road-side drug testing of drivers. This paper outlines research conducted to provide an estimate of the extent of drug driving in a sample of Queensland drivers in regional, rural and metropolitan areas. Oral fluid samples were collected from 2657 Queensland motorists and screened for illicit substances including cannabis (delta 9 tetrahydrocannibinol [THC]), amphetamines, ecstasy, and cocaine. Overall, 3.8% of the sample (n = 101) screened positive for at least one illicit substance, although multiple drugs were identified in a sample of 23 respondents. The most common drugs detected in oral fluid were ecstasy (n = 53), and cannabis (n = 46) followed by amphetamines (n = 23). A key finding was that cannabis was confirmed as the most common self-reported drug combined with driving and that individuals who tested positive to any drug through oral fluid analysis were also more likely to report the highest frequency of drug driving. Furthermore, a comparison between drug vs. drink driving detection rates for one region of the study, revealed a higher detection rate for drug driving (3.8%) vs. drink driving (0.8%). This research provides evidence that drug driving is relatively prevalent on Queensland roads, and may in fact be more common than drink driving. This paper will further outline the study findings’ and present possible directions for future drug driving research.     

The Relationship Between Religious Coping Style and Anxiety over Breast Cancer in African American Women

In this study, we investigated the relationship between religious coping style and anxiety related to breast cancer and the use of mammography in a sample of African American women. We also assessed the relationship of breast cancer anxiety to related variables such as church affiliation and attendance, church teachings on health, and acceptance of those teachings.     

Drug Use History, Drug Test Consequences, and the Perceived Fairness of Organizational Drug Testing Programs

We explored the effects of drug use history (current/recent user of drugs, used/tried drugs, never tried drugs) and a measure of drug test consequences (termination versus rehabilitation) on the perceived fairness of organizational drug testing (DT). Data were collected as part of a statewide telephone survey of the general adult population. Personal drug use history and DT consequences interacted such that DT consequences were related to DT fairness only for nonusers who had past drug use experience. The importance of past drug use in understanding reactions to DT are discussed.     

人工智能辅助的自闭症早期患者的筛查与诊断

自闭症谱系障碍(AutisticSpectrumDisorders,ASD)的症状早在婴幼儿期就会显现,越早发现,越早干预,治疗效果越好。传统自闭症早期筛查与诊断在评估方法、流程上存在局限,无法满足大规模筛查和诊断需求。随着人工智能技术的快速发展,使用智能化方法进行自闭症早期大规模无感筛查与诊断逐渐成为可能。近10年间,国内外对自闭症智能化识别方法的探索在经典任务行为、面部表情和情绪、眼动、脑影像、运动控制和运动模式、多模态6个领域积累了丰富的研究成果。未来研究应围绕构建国内自闭症早期智能医学筛查与诊断体系,开发针对婴幼儿患者的筛查工具,构建融合多模态数据的自闭症婴幼儿智能化识别模型,建立结合脑影像技术的自闭症精细化诊断方法等方面来开展。     

Attitudes toward maternal serum screening in Chinese women with positive results

Maternal serum screening for fetal Down syndrome has been integrated into routine antenatal care in most clinics in Taiwan. We examined the attitudes toward serum screening and the possible implications in women with positive results. From January to July 1995, 276 women were referred to the Genetic Counseling Clinic, Mackay Memorial Hospital for amniocentesis because of positive screening results, and 214 participated in this study. All women opted for amniocentesis after genetic counseling. Over 40% stated that they made decisions independently after being informed of the serum screening. Need for certainty was the most frequently mentioned reason. Two-thirds believed that serum screening could provide a diagnosis. Almost all women would apply for maternal serum screening for future pregnancies. This study demonstrated that Chinese women need more counseling and autonomy regarding maternal serum screening.     

Development and preliminary validation of the Concise Neuropsychological Screening Inventory (CNSI): A clinical tool for use in psychiatric settings

We describe the development and preliminary validation of the Concise Neuropsychological Screening Inventory (CNSI), designed to afford clinical psychologists working in psychiatric settings a simple, rapid, and objective assessment of 10 vital left- and right-hemisphere brain functions: (1) Receptive and Expressive Language, (2) Orientation, (3) Attention/Concentration/Immediate Memory, (4) Recent Auditory and Visual Memory, (5) Remote Memory, (6) Motor/Sensory/Tactile Functioning, (7) Visual/Spatial/Motor Integration, (8) Academic Functioning, (9) Intellectual Processes, and (10) Judgment and Reasoning. Preliminary findings suggest that the CNSI can discriminate patients diagnosed with organic mental syndrome from patients with various psychiatric disorders, including chronic schizophrenia (i.e., specificity in screening). Moreover, with regard to predicting neuropsychological differences among various diagnostic groups, the CNSI is superior to some of the most commonly employed tests by psychologists in psychiatric settings (e.g., WAIS-R Digit Span, Digit Symbol, and Bender-Gestalt).