Should we pass on minimum passing distance laws for cyclists? Comparing a tactical enforcement option and minimum passing distance laws using signal detection theory

Legislation mandating minimum distances for motorists passing cyclists is seen by advocates as a straightforward way to increase the perceived safety of cycling and thus remove a prominent barrier to the uptake of cycling. The evidence, however, is not as clear. The alternative to compliance-based enforcement via Minimum Passing Distance Laws (MPDLs) is performance-based enforcement as recently highlighted by UK Police forces under the name ‘Operation Close Pass’. This existing legislation and enforcement method relies on police officer judgement and discretion. For a MPDL to be introduced it has to show an improvement by identifying more manoeuvres that make cyclists feel unsafe, whilst at the same time not penalising drivers for manoeuvres that are benign. This study uses Signal Detection Theory to show that on almost every measure the current performance-based enforcement is preferable. Officer discretion is aligned more closely to cyclists’ real-world perceptions of risk than an objective, compliance-based MPDL. Any level of enforcement harshness can be achieved equally well, if not better, through officer discretion than through a fixed passing distance law, with the former being significantly easier to adjust if needed. Further discussion about the unintended effects of passing distance laws is discussed, such as the risk of a net loss to the effectiveness of cyclist safety because it is more difficult to prosecute and enforce manoeuvres which make cyclists feel unsafe than the performance-based alternative.     

欺负行为测量:问题及解决

近20年来,各国心理学家就欺负问题做了大量的研究工作。本文主要分析了欺负行为研究中对欺负行为的评价和测量上存在的局限以及相应的改进策略。目前欺负行为评价中的问题主要有：对欺负定义的理解和界定不一致;对欺负的评价角度不一致;测量工具在适用年龄上缺乏连续性;测量方法存在单一性;测量时间取样不明确等。针对上述问题,本研究提出了操作性定义的界定基础、研究工具的开发方向、测量方法的选取技巧和数据分组的原则等来提高对校园欺负行为研究的科学性。     

Positive and negative associations underlying ambivalent attitudes

In two studies, we compared the strength of positive and negative associations of ambivalent attitudes to those of nonambivalent attitudes. In Study 1, results from an implicit association task showed that, in contrast to nonambivalent attitudes, ambivalent attitudes were characterized by strong positive and negative associations. In Study 2 responses to ambivalent attitude objects were faster following a positive as well as following a negative prime, compared to a non-word prime, whereas for neutral attitude objects prime type did not influence response times. Results provide direct evidence for the assumption that both positive and negative associations of ambivalent attitudes are relatively strong. Implications for attitude strength and attitude structure are discussed.     

A real-time phoneme counting algorithm and application for speech rate monitoring

Adults who stutter can learn to control and improve their speech fluency by modifying their speaking rate. Existing speech therapy technologies can assist this practice by monitoring speaking rate and providing feedback to the patient, but cannot provide an accurate, quantitative measurement of speaking rate. Moreover, most technologies are too complex and costly to be used for home practice. We developed an algorithm and a smartphone application that monitor a patient’s speaking rate in real time and provide user-friendly feedback to both patient and therapist. Our speaking rate computation is performed by a phoneme counting algorithm which implements spectral transition measure extraction to estimate phoneme boundaries. The algorithm is implemented in real time in a mobile application that presents its results in a user-friendly interface. The application incorporates two modes: one provides the patient with visual feedback of his/her speech rate for self-practice and another provides the speech therapist with recordings, speech rate analysis and tools to manage the patient’s practice. The algorithm’s phoneme counting accuracy was validated on ten healthy subjects who read a paragraph at slow, normal and fast paces, and was compared to manual counting of speech experts. Test-retest and intra-counter reliability were assessed. Preliminary results indicate differences of −4% to 11% between automatic and human phoneme counting. Differences were largest for slow speech. The application can thus provide reliable, user-friendly, real-time feedback for speaking rate control practice.     

An inkblot for sexual preference: A semantic variant of the Affect Misattribution Procedure

A newly developed Semantic Misattribution Procedure (SMP), a semantic variant of the Affect Misattribution Procedure (AMP), was used in three studies as an indirect measure of sexual interest. Using a known-group approach, homosexual men (Studies 1 and 2), heterosexual men (Studies 1 to 3) and heterosexual women (Study 3) were asked to guess the meaning of briefly presented Chinese ideographs as “sexual” or “not sexual”. The ideographs were preceded by briefly presented primes depicting male and female individuals of varying sexual maturity. As hypothesised, the frequency of “sexual” responses increased after priming with pictures of individuals of the preferred sex and increasing sexual maturation. The SMP showed satisfactory reliability and convergent validity as indicated by correlations with direct and two indirect measures of sexual interest. In two further studies, the hypothesised pattern was replicated whereas a standard AMP with the identical prime stimuli did not produce this result. The potential usefulness of semantic variants of the AMP is discussed.     

Informed Outcomes: Self-rating measures and their use in psychodynamic therapy with adolescents

I am currently engaged in an A Space ¹ 1. A Space for Creative Learning and Support was set up as a research and development project in 1997 by The Glass-House Trust (a Sainsbury Family Charitable Trust), the Social Science Research Unit (Institute of Education, University of London) and Hackney Education. A core aim is to deliver psychodynamic therapies in the school setting, adapting and evolving current models of child and adolescent psychotherapy, where necessary, both in response to the educational context and to ensure that the needs of children and adolescents are best met. In 2010, A Space and The Centre for Psychoanalytic Studies, University of Essex, began a formal study into school-based therapy. Funded by The Glass-House Trust, this research will run through to 2013. A conference will be held in 2013, so that the findings can be more widely disseminated. /University of Essex research study looking at the ways in which psychodynamic counselling can best meet the needs of young people accessing therapy in the school setting. As part of the study, I have looked at the main outcome measures used in work with adolescents in clinics, the community and voluntary sector and in education settings. In this article, I look at the process of assessment, including the use of written self-rating outcome measures with young people. I critically review a selection of these and reflect on their application in practice. I go on to consider how collaborative written assessment procedures may be more appropriate for use by psychodynamic therapists working with school-based clients, given the challenges of delivering therapy in the education sector.     

Development of a therapists’ self-report measure of pluralistic thought and practice: the Therapy Pluralism Inventory

This study aimed to develop a self-report measure of pluralistic thought and practice. Following pilot development, a 23-item inventory was placed on an online survey site, and 474 participants satisfactorily completed the measure. Respondents were trainee or qualified therapists, predominantly female, based in the UK, and of a humanistic or integrative/eclectic orientation. A principal components analysis resulted in two scales, Pluralistic Philosophy and Pluralistic Practice, which had good internal consistency (Cronbach’s α?=?.72 and .80, respectively). Confirmatory factor analysis showed good model fit for this two factor solution. The Therapy Pluralism Inventory (TPI) has potential for use in training and research, although additional validity and normative data are needed.     

医疗安全：观念更新与措施的革命

在医疗安全方面,中国和目前医疗安全领域内先进的国家之间有较大差距。这个差距首先表现在对待医疗安全的观念上,其次是在不同的观念引导下,应对的具体措施差异更加显著。因此,是到了我国在医疗安全问题上进行观念的更新和措施的革命的时候了。通过对一些新的相关信息的分析,引进新的观念和措施,希望可以对国内医疗安全领域的观念的更新与措施的革命起到一定作用。     

"实践"的内在张力与话语转换契机的开启--当代马克思主义法律理论研究新探

当代马克思主义法律理论的研究面临着从批判性导向向建设性导向的话语转换的需要。而传统马克思主义法律理论对法律规范意义的一贯抛弃态度,是实现话语转换的困难所在。本文通过回溯马克思的实践思想,发现否弃法律的规范意义并非马克思思想的固有逻辑。而籍由马克思实践思想中所蕴涵着的实践的内在张力性框架,可以把法律的规范意义容纳进来,并在此基础上开启出马克思主义法律理论研究谋求自身内部话语转换的可能和契机。