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91.
Clinical research using grounded theory methodology was undertaken to discover the origin, structure and meaning of risk-taking, dangerous behaviour in childhood. Three different situations were identified in which risk-taking, dangerous behaviour occurred. These were named illusory-haven, no-haven and perilous-haven: 'haven' describing different object relationships which occurred both inter-psychically and intra-psychically, each of which was dangerous for the child. These configurations of relationships were found to be meaningfully linked to different situations in the Oedipal drama. The 'havens' were also found to be important in linking patterns of family relationships to gang formation. By using the havens in this broader context the insights gained from the Oedipus Complex are seen to be more widely applicable. Es wurde klinische Forschung , die sich auf theoretische Methodik beruft, benutzt, um den Ursprung, die Struktur und die Bedeutung von risikohaftem, gefährlichem Verhalten in der Kindheit zu entdecken. Es wurden drei verschiedene Situationen identifiziert, in denen risikohaftes, gefährliches Verhalten auftrat. Diese wurden illusorische Oase, keine Oase und gefähliche Oase genannt: 'Oase' beschreibt verschiedene Objektbeziehungen, die sowohl interpsychisch als auch intrapsychisch auftreten und jeweils gefährlich für das Kind sind. Diese Beziehungskonfigurationen konnten bedeutungsvoll mit verschiedenen Situationen des ödipalen Dramas verbunden werden. Die 'Oasen ' wurden auch als bedeutend dafür gesehen, Muster von Familienbeziehungen mit Gangformationen in Verbindung zu setzen. Indem man die Oasen in diesem weiteren Zusammenhang benutzt, werden die Einsichten, die aus dem ödipuskomplex gewonnen werden, als weitreichender anwendbar gesehen. Des recherches cliniques utilisant la méthodologie dite de la théorisation ancrée (analyse qualitative et catégorielle) ont été entreprises afin de déceler, chez l'enfant, l'origine, la structure et la signification de la prise de risques et du comportement dangereux. Trois situations différentes, dans lesquelles ce type de comportement se produit, ont été identifiées. Elles sont appelées «havre illusoire», «absence de havre» et «havre périlleux»; le mot «havre» est ici employé pour désigner les différentes relations objectales, inter-psychiques comme intra-psychiques, qui s'avèrent dangereuses pour l'enfant concerné. Ces configurations relationnelles sont liées de façon significative à certains avatars du drame ?dipien. L'idée du «havre» est une représentation qui permet de relier certaines configurations relationnelles familiales à la formation de «gangs» ou de bandes. La notion de «havre» utilisée dans ce contexte élargi permet de conclure que les insights acquis grâce au complexe d'?dipe sont d'application plus générale. Sono state fatte delle ricerche cliniche utilizzando una metodologia teorica fondata per scoprire l'origine, la struttura e il significato del comportamento di correre rischi e di quello pericoloso nell'infanzia. Si identificarono tre diverse situazioni in cui si presentava tale comportamento. Queste furono denominate rifugio-illusorio, non rifugio e rifugio pericoloso: 'il rifugio' descrive diverse relazioni d'oggetto sia a livello inter-psichico che intra-psichico, ciascuna delle quali e' stata pericolosa per il bambino. Risulto' che queste configurazioni di relazioni erano significativamente correlate a diverse situazioni nel dramma edipico. I 'rifugi' erano anche importanti nel correlare modelli di relazioni familiari alla formazione della gang. Usando i rifugi in questo contesto piu' ampio le insights ricavate dal complesso edipico possono essere piu' largamente applicabili.  相似文献   
92.
Recently published studies on Complex Problem Solving (CPS) suggest that assessments of CPS using multiple complex systems are only moderately related to tests of classical cognitive abilities. Further, CPS assessments show incremental validity beyond tests of other cognitive abilities when predicting relevant outcomes. However, these empirical accounts have relied on single CPS assessment instruments. We do not know whether these findings will generalize to the construct level across different CPS assessment instruments. To answer this question, we tested a sample of N = 339 German university students who completed three CPS assessment instruments based on multiple complex systems (MicroDYN, the Genetics Lab, and MicroFIN) and the matrices subtest of the Intelligence Structure Test as measure of reasoning. Students further reported their school grades. Analyses including latent multitrait–multimethod models provided support for the conceptualization of CPS as a complex cognitive ability. Results indicated that different CPS assessment instruments showed sufficient convergent validity (with a consistency mostly between .50 and .60). In addition, we found evidence for the divergent validity of CPS from reasoning (reasoning predicted two CPS facets, knowledge and control, βKNOW = .49 and βCON = .53, respectively). In the prediction of academic achievement, CPS explained variance in natural science grades after we controlled for reasoning (βCPS = .22), whereas social science grades were not predicted. Our findings suggest that the validity of CPS generalizes across different measurement instruments.  相似文献   
93.
94.
High-pressure X-ray diffraction studies on gadolinium sesquioxide (Gd2O3) have been carried out up to a pressure of ~25 GPa in a diamond-anvil cell at room temperature. Gadolinium oxide, which has a cubic or bixbyite structure under ambient conditions, undergoes an irreversible structural phase at around 12 GPa. The high-pressure phase has been identified as a hexagonal La2O3-type structure. The bulk modulus and its pressure derivative of this phase have been calculated.  相似文献   
95.

In a study of radiation effects in SnO we have found that electron-beam damage is observable from changes in a high-resolution electron microscopy image or electron diffraction pattern. The early stage of the damage is not accompanied by a change in composition or a loss of crystallinity. The dose required for this damage (about 600 C cm?2) is approximately independent of electron energy (between 100 and 400 keV) and specimen temperature (between 100 and 300 K). The damage is believed to start with displacement of oxygen atoms from their lattice position through a radiolytic mechanism with an efficiency of approximately 10?4.  相似文献   
96.
It is shown that initially sharp interface in AB diffusion couple, above the ordering temperature, can shift with anomalous kinetics, i.e. deviations from the parabolic growth kinetics are possible. The initial slopes of the shift versus time functions can be even unity for large diffusion asymmetry (the ratio of diffusion coefficients of the parent materials in orders of magnitude) and gradually decrease to 0.5 at larger distances (longer times). This is in accordance with earlier results obtained in phase separating systems. It is shown that from the results of simulations the crossover thickness, X*, between the linear and parabolic regimes can also be calculated, and the applicability of the linear–parabolic law is confirmed. Furthermore, it is illustrated that the crossover thickness depends exponentially on the diffusion asymmetry parameter, with the exponent close to the value obtained from analytical estimations.  相似文献   
97.
To prevent youth violence, the GREAT Families program was implemented with a selective sample of 1,196 families of sixth-grade children from low-income schools in 4 cities making the transition to adolescence. To assess intervention effects, we used pre- and posttest data to estimate a structural model to test the hypothesis that random assignment to the intervention would predict changes in parenting practices, which in turn would predict changes in exposure to violence (i.e., a mediational model). We found that participation in GREAT was significantly related to changes in parenting practices and these changes significantly predicted changes in violence exposure. Furthermore, adolescents who reported greater increases in exposure to violence also tended to experience greater decreases in parental monitoring, discipline, and involvement. Implications for future research and prevention efforts are discussed.  相似文献   
98.
Studies examining own-age recognition biases report inconsistent results and often utilize paradigms that present faces individually and in isolation. We investigated young and older adults' attention towards young and older faces during learning and whether differential attention influences recognition. Participants viewed complex scenes while their eye movements were recorded; each scene contained two young and two older faces. Half of the participants formed scene impressions and half prepared for a memory test. Participants then completed an old/new face recognition task. Both age groups looked longer at young than older faces; however, only young adults showed an own-age recognition advantage. Participants in the memory condition looked longer at faces but did not show enhanced recognition relative to the impressions condition. Overall, attention during learning did not influence recognition. Our results provide evidence for a young adult face bias in attentional allocation but suggest that longer looking does not necessarily indicate deeper encoding.  相似文献   
99.
Speaking up in high-risk organizations plays a pivotal role in the mitigation of errors and can make the difference between life and death. To date, speaking up has been studied mostly within teams. However, many high-risk organizations rely on the effective collaboration across teams in ad hoc multiteam systems (MTS). This study widens the scope of research from teams to MTS and empirically compares the mechanisms involved in speaking up within versus across teams in ad hoc MTS-aircrews. In a sample of 1490 aircrew members of a European airline, we found that crewmembers’ individual level perceptions of psychological safety mediated both the relationship between status and speaking up and between perceived leader inclusiveness and speaking up within teams. Across teams, however, psychological safety and leader inclusiveness—as perceived by pursers in their role as boundary spanners—showed no effect. Instead, it was pursers’ within-team perceptions of psychological safety that mediated between status and speaking up across teams. Teams in ad hoc MTS may thus serve as safe harbours supporting their members also in interactions across team boundaries. Implications of findings for research on MTS and practical recommendations to improve speaking up within and across teams in ad hoc MTS are discussed.  相似文献   
100.
This article seeks to explore how John Rolland's Family Systems Illness Model can be utilized by counselling psychologists working with individuals or families experiencing medical problems. Based on systemic theory the model provides a psychosocial typology of illness and examines how the demands of an illness over time can provide a number of hurdles to be overcome by the client and his/her family. Specific examples and techniques are described to illustrate how the application of the model can be used to guide the interventions employed in a counselling session. the model applies a biopsychosocial approach to health care, and the applicability of this within a British NHS healthcare setting is discussed with the conclusion that such an approach may be in its infancy in this country. Limitations and ideas for expansion of the model from chronic physical illness into spheres of mental health are discussed.  相似文献   
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