桡骨小头粉碎性骨折的两种治疗方法比较分析

分析比较切开复位内固定和人工桡骨小头置换方法治疗桡骨小头粉碎性骨折（MasonⅢ型）的临床疗效。回顾分析2012年10月～2014年3月收治的24例桡骨小头粉碎性骨折（MasonⅢ型）的临床资料,其中切开复位内固定治疗17例;桡骨小头置换7例,平均随访12个月（6个月～18个月）。根据Broberg Morrey评分系统以及术后影像进行评价比较,同时比较两组住院天数以及费用。结果评价比较显示两者疗效均佳,术后两者活动度和功能评分相近,两组住院天数相近,内固定组费用更低。桡骨小头粉碎性骨折须尽早进行解剖复住功能重建,切开复位内固定和桡骨小头置换疗效相当。     

Behavioral economics

Economics, like behavioral psychology, is a science of behavior, albeit highly organized human behavior. The value of economic concepts for behavioral psychology rests on (1) their empirical validity when tested in the laboratory with individual subjects and (2) their uniqueness when compared to established behavioral concepts. Several fundamental concepts are introduced and illustrated by reference to experimental data: open and closed economies, elastic and inelastic demand, and substitution versus complementarity. Changes in absolute response rate are analyzed in relation to elasticity and intensity of demand. The economic concepts of substitution and complementarity are related to traditional behavioral studies of choice and to the matching relation. The economic approach has many implications for the future of behavioral research and theory. In general, economic concepts are grounded on a dynamic view of reinforcement. The closed-economy methodology extends the generality of behavioral principles to situations in which response rate and obtained rate of reinforcement are interdependent. Analysis of results in terms of elasticity and intensity of demand promises to provide a more direct method for characterizing the effects of “motivational” variables. Future studies of choice should arrange heterogeneous reinforcers with varying elasticities, use closed economies, and modulate scarcity or income. The economic analysis can be extended to the study of performances that involve subtle discriminations or skilled movements that vary in accuracy or quality as opposed to rate or quantity, and thus permit examination of time/accuracy trade-offs.     

Toward a Theory of Progressive Evolution (Large-Scale Stages of Evolutionary Progress)

Here I discuss the basic elements, major stages, and completion of progressive evolution. The cosmic world of self-realization is based on extensive self-development within a closed contour: temporal counter-transitions of spatial counter-elements (energy bonds and media and, basically, substance structures) form of local worlds within it through evolution of informational structures.

• The organic world of reproduction develops through the open informational path: the initial substance, through energy exchange and metabolism, reproduces similar substance; the latter interacts with the environment and, subsequently, reproduces its like, and so on.

• The animal world of self-regulation builds up a closed informational contour in the environment through the informational input and command output.

• The human world of self-cognition forms the intensive type of development within the internal closed informational contour of cognition. Counter-transitions of ideal images and signs relate to their real prototypes. In the course of cognition, abstractive thinking develops and brings man to the possibility of reflection of the initial world in its integrity (thus, elevates man to the infinite, by Hegel).

     

Open‐Mindedness and Disagreement

The current debate about disagreement has as rivals those who take the steadfast view and those who affirm conciliationism. Those on the steadfast side maintain that resolute commitment to a belief is reasonable despite peer disagreement. Conciliationists say that peer disagreement necessarily undermines warrant for one’s belief. This article discusses the relevance of open‐mindedness to the matter of peer disagreement. It shows how both the steadfast and the conciliatory perspective are consistent with a robust and substantive display of open‐mindedness. However, it also turns out that there are more ways to display open‐mindedness on the steadfast view than on the conciliatory view.     

Leadership style,salesperson's work effort and job performance: the influence of power distance

As multinational organizations increase operations in emerging economies, firms need to understand how cultural values prevailing in a host country can influence leadership practices developed and practiced in Western economies. This study explores the relationships among leadership styles and salespeople's attitudes and behaviours with data from salespeople in India with power distance measured at the individual level. Results suggest that for employees' instrumental leadership is more effective in promoting employee effort and increasing job performance. In addition, the relationship between satisfaction with supervisor and turnover intentions is weaker or insignificant, while the relationship between satisfaction with supervisor and effort is stronger for employees in higher power distance organizations. The study highlights cultural sensitivities that need to be considered in formulating an effective leadership style in emerging market contexts.     

心理学研究中的可重复性问题:从危机到契机

可重复性问题是当前科学界面临的共同问题。最近,心理学研究领域的可重复性问题也受到广泛关注,引起了研究者的积极讨论与探索。通过对2008年发表的100项研究结果进行大规模重复实验,研究者发现,心理学研究的成功重复率约为39%,但该研究仍然存在着巨大的争议,不同的研究者对其结果的解读不尽相同。针对可重复性问题,研究者通过数据模拟、元分析以及调查等多种方法来分析和探索其原因,这些研究表明,可重复性问题本质上可能是发表的研究假阳性过高,可疑研究操作是假阳性过高的直接原因,而出版偏见和过度依赖虚无假设检验则是更加深层的原因。面对可重复性问题,研究者从统计方法和研究实践两个方面提出了相应的解决方案,这些方法与实践正在成为心理学研究的新标准。然而,要解决可重复性问题,还需要心理学研究领域的多方参与,尤其是在政策上鼓励公开、透明和开放的研究取向,避免出版偏见。心理学研究者为解决可重复性问题做出的努力,不仅会加强心理学研究的可靠性,也为其他学科解决可重复问题提供了借鉴,推动科学界可重复问题的解决。     

Lick-trading by rats: on the substitutability of dry, water, and saccharin tubes.

Thirsty rats licked two metal tubes: a water tube paired with another water tube, with saccharin, or with a dry tube. For each pair, a multipoint baseline function was measured by offering free access to one tube throughout each session, and free or restricted access to the other. The three resulting baseline functions showed the members of each pair to be mutual substitutes: When access to either tube was restricted, the rats made more licks at the other. A linear function identified the two water tubes as perfect substitutes. Convex functions identified the members of the saccharin-water and the dry-water pair as imperfect substitutes. Each pair was also tested under several reciprocal fixed-ratio schedules that required instrumental licking of either tube for contingent access to the other. The resulting schedule functions showed the members of each pair to be perfect substitutes: Water licks decreased linearly as licks at the other water tube, the saccharin, or the dry tube increased, in agreement with a conservation model of instrumental performance. Baseline and schedule functions, indistinguishable in the water-water pair, indicated a schedule facilitation of dry-tube licking in the dry-water pair and of water-tube licking in the saccharin-water pair.