对我国脑死亡立法问题的反思

在对1999年以来我国脑死亡问题的研究成果进行初步梳理的基础上,针对我国学者主张脑死亡立法的主要论据,提出并分析了脑死亡问题的三个主要问题：（1）脑死亡是真正的死亡吗？（2）能否以经济效率的考量来定义生死？（3）器官移植和脑死亡到底有什么关系？还提出,脑死亡立法需要在我国现实的医疗卫生条件下进行讨论。     

Developmental differences in working memory: Where do they come from?

Several models assume that working memory development depends on age-related increases in efficiency and speed of processing. However, age-related increases in the efficiency of the mechanisms that counteract forgetting and restore memory traces may also be important. This hypothesis was tested in three experiments by manipulating both the processing duration within a working memory task and the time available to restore memory traces. Third- and sixth-grade children performed a complex span task in which they maintained series of letters while adding numbers to series of digits. When we equated processing and restoration times between ages, the developmental difference in working memory span was reduced but remained significant. However, this residual difference was eliminated when the time available to reactivate memory traces was tailored to the processing speed of each age group. This indicates that children employ active mechanisms for maintenance and restoration of memory traces that develop with age.     

SLIPA^TM通气道临床应用的回顾性分析

回顾性分析SLIPA^TM通气道（喉罩）临床应用的优缺点及相关并发症。330例ASA1-3级各类全麻手术患者,快速诱导麻醉后插入SLIPA^TM通气道。记录脉搏血氧饱和度,呼气末二氧化碳分压,插入的难易程度及是否有反流、误吸和术后咽痛等相关并发症。结果为96％的患者容易插入SLIPA^TM通气道,10．9％的患者发生了一定程度胃胀气,血液痕迹残留SLIPA^TM通气道表面发生率为11．5％,术后咽痛的发生率为3．3％,无一例发生术后肺内感染。SLIPA^TM通气道操作方便,通气可靠,围术期并发症少,在临床的应用安全有效。     

Characterization of lower-limbs inter-segment coordination during the take-off extension in ski jumping

Take-off, the most important phase in ski jumping, has been primarily studied in terms of spatio-temporal parameters; little is known about its motor control aspects. This study aims to assess the inter-segment coordination of the shank-thigh and thigh-sacrum pairs using the continuous relative phase (CRP). In total 87 jumps were recorded from 33 athletes with an inertial sensor-based system. The CRP curves indicated that the thighs lead the shanks during the first part of take-off extension and that the shanks rotated faster at the take-off extension end. The thighs and sacrum first rotated synchronously, with the sacrum then taking lead, with finally the thighs rotating faster. Five characteristic features were extracted from the CRP and their relationship with jump length was tested. Three features of the shank-thigh pair and one of the thigh-sacrum pair reported a significant association with jump length. It was observed that athletes who achieved longer jumps had their thighs leading their shanks during a longer time, with these athletes also having a more symmetric movement between thighs and sacrum. This study shows that inter-segment coordination during the take-off extension is related to performance and further studies are necessary to contrast its importance with other ski jumping aspects.     

Neurotic Nucleus and Test Anxiety

Undergraduate university students (N = 103) participated in a study of the relationship between test anxiety and the variables of trait anxiety, self-esteem, locus of control, mental ability, and gender. Results indicated bivariate associations between total test anxiety and the other measures except for mental ability. Further analyses revealed independent relationships between the “worry” component of test anxiety and the variables of trait anxiety, intemality, chance, and mental ability. We also found independent associations between the “emotionality” aspect of test anxiety and the measures of trait anxiety and chance.     

Diagnostic efficiency of DSM-IV criteria for obsessive compulsive personality disorder in patients with binge eating disorder

This study examined the diagnostic efficiency of the DSM-IV criteria for obsessive compulsive personality disorder (OCPD) in patients with binge eating disorder (BED). Two hundred and eleven consecutive adult patients with axis I diagnoses of BED were reliably assessed with semi-structured diagnostic interviews. Conditional probabilities-sensitivity, specificity, positive predictive power (PPP), and negative predictive power (NPP)-were calculated for each of the eight criteria for OCPD, using the 'best-estimate' OCPD diagnosis as the standard. The diagnostic efficiencies of the OCPD criteria were variable, with three criteria failing to have predictive value (PPP<0.50). The best inclusion criterion (highest PPP) was 'Perfectionism,' which was also the overall most predictive criterion. The findings suggest ordering of the DSM-IV criteria for OCPD based on performance and call into question the utility of some criteria.