76 resultados para Bees - Social behaviour


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Rural communities in the Haut-Uele Province of northern Democratic Republic of Congo live in constant danger of attack and/or abduction by units of the Lord's Resistance Army operating in the region. This pilot study sought to develop and evaluate a community-participative psychosocial intervention involving life skills and relaxation training and Mobile Cinema screenings with this war-affected population living under current threat. 159 war-affected children and young people (aged 7-18) from the villages of Kiliwa and Li-May in north-eastern DR Congo took part in this study. In total, 22% of participants had been abduction previously while 73% had a family member abducted. Symptoms of post-traumatic stress reactions, internalising problems, conduct problems and pro-social behaviour were assessed by blinded interviewers at pre- and post-intervention and at 3-month follow-up. Participants were randomised (with an accompanying caregiver) to 8 sessions of a group-based, community-participative, psychosocial intervention (n=79) carried out by supervised local, lay facilitators or a wait-list control group (n=80). Average seminar attendance rates were high: 88% for participants and 84% for caregivers. Drop-out was low: 97% of participants were assessed at post-intervention and 88% at 3 month follow-up. At post-test, participants reported significantly fewer symptoms of post-traumatic stress reactions compared to controls (Cohen's d=0.40). At 3 month follow up, large improvements in internalising symptoms and moderate improvements in pro-social scores were reported, with caregivers noting a moderate to large decline in conduct problems among the young people. Trial Registration clinicalTrials.gov, Identifier: NCT01542398.

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While there is broad consensus about the need for interventions to help psychologically distressed, war affected youth, there is also limited research and even less agreement on which interventions work best. Therefore, this paper presents a randomised trial of trauma focused, and non trauma focused, interventions with war affected Congolese youth. Fifty war affected Congolese youth, who had been exposed to multiple adverse life events, were randomly assigned to either a Trauma Focused Cognitive Behavioural Therapy group or a non trauma based psychosocial intervention (Child Friendly Spaces). Non clinically trained, Congolese facilitators ran both groups. A convenience sample, waiting list group was also formed. Using blind assessors, participants were individually interviewed at pre intervention, post intervention and a 6-month follow-up using self-report posttraumatic stress and internalising symptoms, conduct problems and pro social behaviour. Both treatment groups made statistically significant improvements, compared to the control group. Large, within subject, effect sizes were reported at both post intervention and follow-up. At the 6-month follow-up, only the Child Friendly Spaces group showed a significant decrease in pro social behaviour. The paper concludes that both trauma focused and non trauma focused interventions led to reductions in psychological distress in war affected youth.

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In May 2013, the Coalition Government introduced a Bill which if passed will streamline the tools available to tackle anti-social behaviour. One of their proposals is to replace the controversial anti-social behaviour order (ASBO) with what is termed an Injunction to Prevent Nuisance and Annoyance (IPNA). Although designed to tackle criminal and sub-criminal behaviour, this new intervention will be a purely civil order replacing the civil-criminal hybrid ASBO. This article explores some of the more troubling aspects of this part of the Bill including its expansive definition of anti-social behaviour, the avoidance of due process protections, the extensive restrictions that respondents may face and the likely impact of its use on young people. With legislation presently under Parliamentary scrutiny, this article calls for amendments to avoid the most problematic aspects of the ASBO being not just replicated but amplified.

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Many children and young people in conflict with the law in Northern Ireland have experienced living in poverty, truancy or exclusion from school, limited educational attainment, neglect or abuse within their families, placement in alternative care, drug or alcohol misuse, physical and mental ill-health. However, their lives are also affected by the legacy and particular circumstances of a society in transition from conflict. In addition to historical under-investment in services for children and their families, this includes discriminatory policing alongside informal regulation by ‘paramilitaries’ or members of ‘the community’ and community-based restorative justice schemes as an alternative way of dealing with low-level crime and ‘anti-socialbehaviour.

Following a Criminal Justice Review, the 2002 Justice (Northern Ireland) Act affirmed that the principal aim of the youth justice system is to protect the public by preventing offending by children’. Youth justice initiatives therefore encompass a range of responses: early intervention to prevent offending and the application of civil Anti-Social Behaviour Orders, diversionary measures (including community-based restorative justice schemes), non-custodial disposals for those found guilty of offences, and custodial sentences. While ‘policy transfer’ prevailed during periods of ‘direct rule’ from Westminster, the punitive responses to ‘sub-criminal’ and ‘anti-socialbehaviour introduced by the 1998 Crime and Disorder Act in England and Wales were resisted or not implemented in the same way in Northern Ireland.

This Chapter will critically analyse the debates informing recent developments, noting key issues raised by the 2011 review of youth justice initiated as a priority following the devolution of justice and policing to the Northern Ireland Assembly. It will focus on promotion and protection of the rights of children and young people in conflict with the law.

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Biofilm formation is a social behaviour that generates favourable conditions for sustained survival in the natural environment. For the Gram-positive bacterium Bacillus subtilis the process involves the differentiation of cell fate within an isogenic population and the production of communal goods that form the biofilm matrix. Here we review recent progress in understanding the regulatory pathways that control biofilm formation and highlight developments in understanding the composition, function and structure of the biofilm matrix.

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In Italy, National Law (281/1991) prohibits euthanasia of shelter dogs if they are not dangerous or suffering seriously. Adoption rates in rescue shelters are often lower than entrance rates, leading inevitably to overcrowded facilities where animals are likely to spend the rest of their lives in kennels. In this situation, housing conditions (i.e. space provided, environmental, and social stimulation) may have an impact on canine welfare. In this research project, the effects of two different forms of housing (group- and pair housing) on long-term shelter dogs were compared using behavioural and physiological parameters. Observational data and saliva samples were collected from dogs exposed to both experimental settings; behaviour and cortisol concentration levels were used as welfare indicators. Pair housing offered fewer social and environmental stimuli and behavioural analysis showed a significant decrease in locomotor, exploratory, and social behaviour. Cortisol levels show that this parameter varied independently of housing conditions. Although this study found no evidence suggesting that one form of confinement reduced animal welfare more than the other (e.g. in terms of abnormal behaviour, or higher cortisol concentrations), the type of confinement did affect the expression of a variety of behaviours and these variations should not be ignored with respect to housing decisions for long-term shelter dogs.

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Considerable interspecific diversity exists among bees in the rendezvous sites where males search for females and in the behaviours employed by males in their efforts to secure matings. I present an evolutionary framework in which to interpret this variation, and highlight the importance for the framework of (i) the distribution of receptive ( typically immediate post-emergence) females, which ordinarily translates into the distribution of nests, and (ii) the density of competing males. Other than the highly polyandrous honey bees ( Apis), most female bees are thought to be monandrous, though genetic data with which to support this view are generally lacking. Given the opportunity, male bees are typically polygamous. I highlight intraspecific diversity in rendezvous site, male behaviour and mating system, which is in part predicted from the conceptual framework. Finally, I suggest that inbreeding may be far more widespread among bees than has hitherto been considered the case.

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Neotropical orchid bees (Euglossini) are conspicuously different from other corbiculate bees (Apinae) in their lack of advanced sociality and in male use of acquired odors (fragrances) as pheromone-analogues. In both contexts, orchid bee mating systems, in particular the number of males a female mates with, are of great interest but are currently unknown. To assess female mating frequency in the genus Euglossa, we obtained nests from three species in Mexico and Panama and genotyped mothers and their brood at microsatellite DNA loci. In 26 out of 29 nests, genotypes of female brood were fully consistent with being descended from a singly mated mother. In nests with more than one adult female present, those adult females were frequently related, with genotypes being consistent with full sister-sister (r = 0.75) or mother-daughter (r = 0.5) relationships. Thus, our genetic data support the notions of female philopatry and nest-reuse in the genus Euglossa. Theoretically, single mating should promote the evolution of eusociality by maximizing the relatedness among individuals in a nest. However, in Euglossini this genetic incentive has not led to the formation of eusocial colonies as in other corbiculate bees, presumably due to differing ecological or physiological selective regimes. Finally, monandry in orchid bees is in agreement with the theory that females select a single best mate based on the male fragrance phenotype, which may contain information on male age, cognitive ability, and competitive strength.

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There is ample evidence that young people engage in grooming and harmful sexual behaviour (HSB) using social media with enough frequency to make those behaviours important con-cerns for both society and care providers. This article provides a critical overview of the con-ceptual and empirical foundations of peer-to-peer grooming and the use of social media with-in the context of HSB. Based on this learning, it ultimately introduces a new model of inter-vention and of professional practice, which provides the standards for micro-level decision-making about goals, methods and assessment tailored to this specific offending context.

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Young people excluded from school are a group at an increased risk to drug use and antisocial behaviour during adolescence and later marginalisation and exclusion from society in adulthood (Blyth and Milner, 1993). As part of the Belfast Youth Development Study, a longitudinal study of the onset and development of adolescent drug use, young people who entered post primary school in 2000 (aged 11/12 years) were surveyed annually on four occasions. This paper reports on findings from this survey in relation to a supplementary group of young people who were surveyed because they had been excluded from school. The findings show higher levels of drug use and antisocial behaviour among school excludees, lower levels of communication with their parents/guardians, higher levels of contact with the criminal justice system and increased likelihood of living in communities characterised with neighbourhood disorganisation. This lifestyle perhaps suggests these young people are leading a life that is already taking them towards the margins of society.

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This article takes issue with those who assume that the responsibility for bad outcomes in social work, such as child deaths, is appropriately laid at the feet of individual workers. It examines the philosophical origins of such arguments, some recent applications within social work literature and their appropriateness to the realities of social work practice. The author argues that a morality of social work must recognize the social and organizational context in which it occurs.

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The Neotropical Euglossini (Hymenoptera: Apidae) are important pollinators of many flowering plants, particularly orchids. Lack of highly polymorphic genetic markers for euglossine species has limited the study of their social organization and inbreeding. We therefore developed microsatellite markers for two species, Eulaema nigrita (11 loci) and Euglossa cordata (nine loci), most of which were highly polymorphic in the source species and in a range of related euglossine bees.