A sex difference in effect of prior experience on object-mediated problem-solving in gibbons

Understanding the functionally relevant properties of objects is likely facilitated by learning with a critical role for past experience. However, current evidence is conflicting regarding the effect of prior object exposure on acquisition of object manipulation skills. This may be due to the influence of life history variables on the capacity to benefit from such experience. This study assessed effect of task-relevant object exposure on object-mediated problem-solving in 22 gibbons using a raking-in task. Despite not using tools habitually, 14 gibbons spontaneously used a rake to obtain a reward. Having prior experience with the rake in an unrewarded context did not improve learning efficiency in males. However, females benefitted significantly from the opportunity to interact with the rake before testing, with reduced latencies to solution compared to those with no previous exposure. These results reflect potential sex differences in approach to novelty that moderate the possible benefits of prior experience. Due to their relatively high energetic requirements, reproductively active females may be highly motivated to explore potential resources; however, increased investment in developing offspring could make them more guarded in their investigations. Previous exposure that allows females to learn of an object’s neutrality can offset this cautious exploration.     

Animal Disenhancement and the Non-Identity Problem: A Response to Thompson

In his paper “The Opposite of Human Enhancement: Nanotechnology and the Blind Chicken problem” (Nanoethics 2:305–316, 2008) Paul Thompson argues that the possibility of “disenhancing” animals in order to improve animal welfare poses a philosophical conundrum. Although many people intuitively think such disenhancement would be morally impermissible, it’s difficult to find good arguments to support such intuitions. In this brief response to Thompson, I accept that there’s a conundrum here. But I argue that if we seriously consider whether creating beings can harm or benefit them, and introduce the non-identity problem to discussions of animal disehancement, the conundrum is even deeper than Thompson suggests.     

‘Tell us what we need to know to do this!’ Preparing a path to safe uncertainty in assignment writing on a family therapy foundation course

This article describes a single session aimed at helping participants on a family therapy foundation course to move from a position of anxiety and discomfort about completing a written assignment to a position of safe uncertainty. Evaluation from the perspectives of course participants, course facilitators and assignment markers has shown participants engaging more enthusiastically with the writing of the assignment and expressing less anxiety about the process.     

SAFE通路参与缺血后处理心肌保护作用机制的探讨

缺血后处理(ischemic postconditioning,IPost)是在心肌缺血后持续再灌注前给予多次短暂的再灌注/缺血处理的处理方法,对心肌缺血/再灌注损伤有着重要的保护作用。其心肌保护的具体机制十分复杂,尚未完全阐明。生存活化因子增强(survivor activating factor enhancement,SAFE)途径是IPost中新近发现的保护通路,阐明其在IPost心肌保护中的作用,将为寻找新的药物治疗靶点提供新思路。     

Are driving simulators effective tools for evaluating novice drivers’ hazard anticipation,speed management,and attention maintenance skills?

Novice drivers (teen drivers with their solo license for 6 months or less) are at a greatly inflated risk of crashing. Post hoc analyses of police accident reports indicate that novice drivers fail to anticipate hazards, manage their speed, and maintain attention. These skills are much too broadly defined to be of much help in training. Recently, however, driving simulators have been used to identify those skills which differentiate the novice drivers from older, more experienced drivers in the areas of hazard anticipation and speed management. Below, we report an experiment on a driving simulator which compares novice and experienced drivers’ performance in the third area believed to contribute especially heavily to crashes among novice drivers: attention to the forward roadway. The results indicate that novice drivers are much more willing to glance for long periods of time inside the vehicle than are experienced drivers. Interestingly, the results also indicate that both novice and experienced drivers spend equal amounts of time glancing at tasks external to the vehicle and in the periphery. Moreover, just as a program has been designed to train the scanning skills that clearly differentiate novice from experienced drivers, one might hope that a training program could be designed to improve the attention maintenance skills of novice drivers. We report on the initial piloting of just such a training program. Finally, we address a question that has long been debated in the literature: Do the results from driving simulators generalize to the real world? We argue that in the case of hazard anticipation, speed management, and attention maintenance the answer is yes.     

The Ambivalence of Promising Technology

Issues of responsibility in the world of nanotechnology are becoming explicit with the emergence of a discourse on ‘responsible development’ of nanoscience and nanotechnologies. Much of this discourse centres on the ambivalences of nanotechnology and of promising technology in general. Actors must find means of dealing with these ambivalences. Actors’ actions and responses to ambivalence are shaped by their position and context, along with strategic games they are involved in, together with other actors. A number of interviews were conducted with industrial actors with the aim of uncovering their ethical stances towards responsible development of nanotechnology. The data shows that standard repertoires of justification of nanotechnological development were used. Thus, the industrial actors fell back on their position and associated responsibilities. Such responses reinforce a division of moral labour in which industrial actors and scientists can focus on the progress of science and technology, while other actors, such as NGOs, are expected to take care of broader considerations, such as ethical and social issues.     

Shendu and Qingdu: Reading the Recovered Bamboo and Silk Manuscripts

The terms du (獨) and shendu (慎獨) frequently appear in transmitted texts, notably, among others, the Xunzi and Liji. Drawing reference from the poetry of “Shijiu” (鳲鳩) (Ode 152) and “Yanyan” (燕燕) (Ode 28) in the Book of Odes (詩經), the recovered texts of “Wuxing Commentary” (五行 說) and “Confucian Poetics” (孔子詩論) have provided new material for re-shaping our current understanding of the concepts of du and shendu. This study will briefly survey the semantic ranges of these terms within the exegetical tradition and explore their meaning with regard to the poetry from which they are contextualized. In the final analysis du can be understood as the ontic quality of the heart-mind within the broad sense of cheng (誠 sincerity), or devout love, whereas shendu can be regarded as a process of moral cultivation. To some extent the re-interpretation of these terms finds commonality with, rather than subverts, the semantic ranges established by traditional glosses. The recovered texts have enhanced our understanding of these terms, in particular the concepts of heart-mind and emotion in early China.     

Definitions of Idioms in Preadolescents, Adolescents, and Adults

The purpose of this study was to expand the current literature on word definitions by focusing on definitions of idioms provided by several age groups. Preadolescents, young adolescents, older adolescents, and adults wrote definitions for 10 frequently used idioms and also rated their familiarity with the idiomatic expressions. Participants’ definitions were scored based on the degree to which their definitions reflected use of critical elements (determined by a standard dictionary of idioms), use of examples or related/associated concepts, and errors. Significant age differences were found in both idiom familiarity and idiom definition tasks: both idiom familiarity and definitional skill improved with age. In addition, we found a positive correlation between idiom familiarity and idiom definition. Results are discussed with respect to age-related changes in definitional response types and understanding of figurative language.     

Stonewalling through Schizophrenia: An Anti-Gay Rights Culture in Hong Kong?

With its British colonial legacy and Chinese make-up, Hong Kong provides a stimulating stadium and lens through which to examine the validity of the use of “culture” in arguing against homosexuality and the development and protection of the rights of sexual minorities. After a brief account on the legal developments in Hong Kong on homosexuality, this article examines how the argument that Hong Kong has an inherently anti-gay rights culture, which simultaneously emphasizes Confucianism and Christianity, and which the government then uses to stonewall the development and protection of the rights of sexual minorities, merely illuminates an underlying schizophrenia as to what that culture actually is. In the process of my diagnosis, I will also discuss whether Confucianism and Christianity indeed oppose homosexuality and sexual minority rights.