A case of behavioral heterosis in mice: quantitative and qualitative aspects of performance in a water-escape task.

Fourteen hundred and four mice from two inbred strains (Balb/c and C57BL/6), F1, F2, and backcrosses were subjected to four trials in a water-escape task and to a swimming test. Detailed analysis of mice behavior in these situations showed that the "F1 hybrid vigor" affected behavioral characters not directly related to physical vigor but of potential adaptive value. Their superiority was mainly due to more frequent adoption of an efficient behavioral tactic (direct or edge escape paths toward the exit) and more rapid progress with experience in this respect than other generations exhibited. These results clearly show that heterosis is not limited to physical vigor but may extend to behavioral and even psychological characters.     

THE POST-METROPOLIS IS GOD: Notes for a Phenomenology of the Urban Spirit

Topoi - More akin to the Roman Empire’s concept of civitas mobilis augescens, the distinction between the twentieth-century metropolis and the Roman model of a city must be sought in the...     

Self-harming behaviours of asylum seekers and refugees in Europe: A systematic review

The increasing number of asylum seekers and refugees in Europe calls for even more professionals to take care of refugees' mental health. Although different studies claim that migration could be a potential risk factor for self-harming behaviours, an in-depth exploration of the presence and characteristics of self-harm in the context of asylum is needed. In accordance with PRISMA guidelines, a systematic review was conducted across the databases Scopus, PubMed, Web of Knowledge and PsycArticles, regarding the main features of self-harming behaviour among refugees in Europe. Twelve articles and 3 main trajectories were identified: (1) A context at-risk: self-harm and detention centres; (2) A target at-risk: self-harm and unaccompanied minors; (3) A comparison between the mental health of asylum seekers and natives. Research on this topic in Europe is still underdeveloped and disorganised. Studies have mainly carried out wider quantitative investigations on mental health, usually overlapping self-harm with suicide. Detention centres emerged as the most widely investigated context and the one with the highest risk for self-harming behaviours. Instead, unaccompanied minors emerged as a particularly vulnerable category. Research in this field should be improved, combining quantitative and qualitative methods for a deeper understanding of the meanings of self-harm across cultures.     

Linking servant leadership to positive deviant behavior: The mediating role of self-determination theory

How can servant leadership focused primarily on developing employees help them to become more ethical and prosocial, and to achieve positive results reaching beyond mere compliance with their tasks? More specifically, we propose that servant leadership may influence employees to engage in positive deviant behavior (PDB), meaning non-conforming behavior that is positive and ethical. Using self-determination theory (SDT), our research examines the effect of perceived servant leadership on the adoption of PDB by employees, mediated by basic psychological needs satisfaction and intrinsic motivation. To this end, we conducted a quantitative study of 344 French employees’ answers to an online survey. Structural equation modeling results indicated that the relationship between perceived servant leadership and innovative PDB is strongly predicted by SDT. Intrinsic motivation mediates the relationship between perceived servant leadership, satisfaction of basic psychological needs, and innovative PDB. Several limitations and implications will be discussed.     

The moderating role of intrinsic value in the relation between psychological needs support and academic engagement in mathematics among Chinese adolescent students

This study was to assess the moderating roles of intrinsic value in the relation of basic psychological needs support to academic engagement in mathematics. We recruited 246 middle school students by using the Basic Psychological Needs Support Scale, the Intrinsic Value Scale and the Academic Engagement Scale. This study found that both basic psychological needs support and intrinsic value had significant predictions on the three aspects of academic engagement. Moreover, the interaction item between basic psychological needs support and intrinsic value could significantly affect emotional and cognitive engagement, but not behavioural engagement. The findings indicated that except for behavioural engagement, the associations between basic psychological need support and emotional or cognitive engagement could be moderated by intrinsic value. This study provides a special perspective for educators and researchers to recognise the role of intrinsic value in promoting adolescents' higher levels of involvement in mathematics class.     

The Conceptualization of Team Flow

Despite the noted potential for team flow to enhance a team's effectiveness, productivity, performance, and capabilities, studies on the construct in the workplace context are scarce. Most research on flow at the group level has been focused on performance in athletics or the arts, and looks at the collective experience. But, the context of work has different parameters, which necessitate a look at individual and team level experiences. In this review, we extend current theories and essay a testable, multilevel model of team flow in the workplace that includes its likely prerequisites, characteristics, and benefits.     

Radical anti-realism, Wittgenstein and the length of proofs

After sketching an argument for radical anti-realism that does not appeal to human limitations but polynomial-time computability in its definition of feasibility, I revisit an argument by Wittgenstein on the surveyability of proofs, and then examine the consequences of its application to the notion of canonical proof in contemporary proof-theoretical-semantics.     

Memory for words location in writing

In two experiments, we investigated memory for words location after writing a text. Experiment 1 demonstrated the existence of a memory for words location in writing by showing that participants who first composed a text and were then asked to locate words extracted from their text performed above a chance level established using a computer simulation, and better than participants who did not compose a text but were told the subject of the text. Experiment 2 showed that memory for words location in writing is mainly supported by a visuospatial representation of the text, as indicated by the lower recall of words location by participants who performed a visuospatial concurrent task at the time of the composition, compared with participants who performed a verbal concurrent task. The findings highlight the role of a spatial representation of the physical layout of the text and the role of such a memory in the writing process.

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