نتایج جستجو برای: aggressive behavior
تعداد نتایج: 667292 فیلتر نتایج به سال:
Children with incarcerated parents are at risk for a variety of problematic outcomes, yet research has rarely examined protective factors or resilience processes that might mitigate such risk in this population. In this volume, we present findings from five new studies that focus on child- or family-level resilience processes in children with parents currently or recently incarcerated in jail o...
The aggressive behaviour of female hamsters was studied while they were housed in large enclosures with males and in brief tests with males or females. Some females are not aggressive with any male, whereas others are very aggressive toward all males in both testing conditions. Females that are not aggressive toward intact males may be very aggressive toward castrated males or females. When the...
Introduction All of us know what aggression is. But it is very difficult to define it. The Encyclopaedia Britannica (1979), Vol.8, however, suggests a working definition: "Aggression is defined as an action that inflicts pain, anxiety, or distress on another, and is in the service of hostile motive or of the emotion of anger". This definition has the advantage that it includes the actions which...
Previous behaviour genetic studies of aggression have yielded inconsistent results: reported heritabilities for different types of aggressive behaviour ranging from 0 to 0.98. In the present study, 247 adult twin pairs (183 MZ pairs; 64 same-sex DZ pairs) were administered seven self-report questionnaires which yielded 18 measures of aggression. Univariate genetic analyses showed moderate to hi...
Signals of dominance and fighting ability (i.e. status signals) are found in a wide range of taxa and are used to settle disputes between competitive rivals. Most previous research has considered status-signal phenotype as an attribute of the individual; however, it is more likely that signal expression is an emergent property that also incorporates aspects of the social environment. Furthermor...
Temporal pairwise-correlation analysis provides empirical support for attention hierarchies in mice.
In many social hierarchies, more subordinate individuals adjust their behaviour according to the presence or behaviour of more dominant individuals. In this study, it is shown that male mice form linear dominance hierarchies characterized by individuals attacking in bursts. Temporal pairwise-correlation analysis reveals that non-dominant individuals avoid behaving aggressively concurrently with...
In the year 1966, the first government hospital, Oshakati hospital, was inaugurated in northern South-West Africa. It was constructed by the apartheid regime of South Africa which was occupying the territory. Prior to this inauguration, Finnish missionaries had, for 65 years, provided healthcare to the indigenous people in a number of healthcare facilities of which Onandjokwe hospital was the m...
The prevalence of bullying among children, and the sometimes tragic consequences as a result, has become a major concern in schools. The larger research for this study reported on in-depth interviews with 28 elementary and middle school-age boys and girls (7-12 years) who had experienced various forms of bullying and relational aggression by their peers, mostly on school grounds, and the respon...
This article is concerned with drawing inference about aspects of the population distribution of ordinal outcome data measured on a cohort of individuals on two occasions, where some subjects are missing their second measurement. We present two complementary approaches for constructing bounds under assumptions on the missing data mechanism considered plausible by scientific experts. We develop ...
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