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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
131

En sociologisk undersökning av polisers psykosociala arbetsmiljö

Vargül, Dilek January 2011 (has links)
The purpose of this study is to gain more understanding for police officers' experiences for the psychosocial work-environment and their experiences of threat and violence in the work-environment. Through a qualitative study has interviews conducted with police officers to gain a deeper understanding. My main question is: How do police officers experiences their psychosocial work-environment? And the other research questions are: How do psychosocial work environment affect police officers privacy? How the dynamics of the group’s role in the psychosocial work environment? What are the factors that affect/prevent psychosocial work environments? The officers' experiences of their psychosocial work-environment were very similar to each other. They feel that their psychosocial work-environment is positive for their fellowship and communication in their work group. These are some of the factors that are characteristic of a good psychosocial work-environment according to Thoerells (2003).The informants were told that their psychosocial work-environment is good when it comes to team work and cohesion and it has a more personal communication as they work in small groups which allows them to get to know each other more. Working as a policeman in Malmö was experienced as very stressful and there was always a fast pace compared with Trelleborg, which is a smaller town. According to one of the informants' experiences is it less stressful and more peaceful people in Trelleborg comparing to Malmö. / <p>Validerat; 20110721 (anonymous)</p>
132

Review and Evaluation of the Officer Next Door Program.

Asquith, Nicole 06 1900 (has links)
no / This research report was commissioned to assess and evaluate the criminal justice and business case for the Officer Next Door (OND) program. Since its establishment in 1998, the OND program has sought to provide Housing Tasmania residents with a reassurance policing approach based on early intervention in criminal and anti-social behaviour on Housing Tasmania broadacre estates.
133

Ethnic background and its effect on consumer behaviour. A study to establish the validity of utilizing ethnic background as one of the social influences of consumer purchasing behaviour.

Vincze, Julian William January 1976 (has links)
For the last several years a great deal of research has been carried out under the general heading of Consumer Behaviour. Researchers are studying consumer purchasing behaviour in all of its many facets and a great deal of additional highly useful information has become available to marketing scholars and practitioners. Generally these researchers have utilized as a basis for their research one of the current models of consumer behaviour as proposed by the recognized scholars in the field. These models although different contain many similarities. They all are multi-dimensional, containing many elements which interact to Influence the consumer's decision making process. (A more thorough discussion of the various models occurs later. ) Most of the recent research projects have been concentrated on one of the elements, in a logical way, in order to extend the amount of knowledge available concerning the element and how It interacts with the remaining aspects of the model. Inasmuch as the majority of this research is being carried on by researchers in the United States (U. S. ) utilizing the marketing/economic/sociocultural environment of the U. S., it is the writer's contention that not all of these research findings are automatically applicable or useful on a world-wide basis. Indeed, if one is concerned with a different country, for example the United Kingdom (U. K. ) or Canada, in which there exists a differing marketing, economic or sociocultural environment, then one must view the U. S. oriented research results not with scepticism but at least with some apprehension and with a questioning attitude. It is this attitude which led the writer to question the lack of concern and therefore research pertaining to certain aspects of the element "social influences". One of the multi-dimensional aspects mentioned above which, although not uniformly labelled in the various models of consumer behaviour, does appear to be common to these models, is "social influences". The major elements which the writer has identified within this "social influences" dimension are social class, family and culture. Although different researchers have utilized variations in the definitions, and therefore the sub-elements which are included in each of these three elements, it is a truism that a transposed cultural background (or ethnic background) i. e. immigration, is either not considered, or at best briefly noted and thereafter ignored or overlooked. - This lack of references to immigration and the apparent little amount of thought given to the various ethnic backgrounds represented by immigrants disturbed the researcher so for the purposes of this study it was decided to concentrate on ethnic background in order to clearly establish the validity of considering ethnic background as a major social influence of consumer purchasing behaviour, or to validate the position taken by other U. S. oriented researchers, I. e. that ethnic background is not a major influence on consumer purchasing behaviour and can be overlooked. Thus this study is primarily concerned with only two aspects of the models of consumer behaviour: family purchasing and culture. The study is not concerned with the culture in place in the environment but instead with transposed cultures via immigration.
134

The Evolution and Ecology of Learning and Social Behaviour in Insects

Durisko, Zachary T. 10 1900 (has links)
<p>Animals utilize information about their environments in order to adaptively modify behaviour. Such information may come from individual experience or from social sources, both of which have costs and benefits to the animal. Here I first show benefits of individual learning with respect to foraging performance, a good proxy of fitness, in bumblebees in a naturalistic setting. Second, I show that despite fitness costs associated with learning, fruit flies do not modify their investment in learning ability due to environmental complexity of larval foraging environment. Third, I show that fruit fly larvae utilize social information in their foraging decisions, including social learning, despite increased competition costs. Fourth, I show that adult fruit flies also use the presence of larvae as a source of social information to find suitable food patches. Finally, I show that larvae spontaneously form small foraging aggregations, one benefit of which may be an improved ability to dig and burrow into the surface of the food. I discuss the costs and benefits of both individual and social learning, as well as the potential for insect model systems in future studies of sociality and learning.</p> / Doctor of Philosophy (PhD)
135

Social decision-making in a group living cichlid fish

Reddon, Adam R. 10 1900 (has links)
<p>For my doctoral research I examined social decision-making in a cooperatively breeding cichlid fish, <em>Neolamprologus pulcher</em> with a focus on affiliation and aggression. I investigated the role that the nonapeptide hormone, isotocin, plays in modulating social decisions in these contexts. I show that <em>N. pulcher</em> males prefer to join larger groups regardless of the rank at which they will join, whereas females prefer larger groups only when they can join a group in a high rank (Chapter 2). I examined decision-making during resource contests in<em> </em>(Chapter 3) and found that <em>N. pulcher</em> are sensitive to the size of their opponents, making fighting decisions depending on their opponents’ body size. I also found that smaller <em>N. pulcher</em> are more motivated to persist within contests, showing a shorter latency to resume fighting following interruption (Chapter 4). In Chapters 5 and 6, I explored the role of isotocin (the teleost fish homologue of oxytocin) in regulating social behaviour. I discovered that an increase in isotocin increased responsiveness to social information. Fish treated with isotocin were more sensitive to their opponent’s size in contests and were more submissive to dominant individuals within their social group (Chapter 5). Unexpectedly, I found that exogenous isotocin reduced sociality in <em>N. pulcher, </em>and that an isotocin receptor antagonist increased it (Chapter 6). These results suggest that the relationship between isotocin and social behaviour is both complex and context specific. In my final data chapter, I used social network analysis to explore the role of dominance interactions in determining the structure of <em>N. pulcher</em> social groups. I found that <em>N. pulcher</em> dominance hierarchies are highly linear, but that dominance interactions are not predicted by sex or body size asymmetry (Chapter 7). I found that conflict within <em>N. pulcher</em> social groups is greatest at the top of the dominance hierarchy. Taken together the results of my thesis helps to elucidate the behavioural and hormonal basis of social decision-making in a cooperatively breeding vertebrate and help to illuminate the evolution of social behaviour.</p> / Doctor of Philosophy (PhD)
136

Doing the ‘right’ thing: A sociological exploration of pro-social behaviour by independent witnesses

Spink, Joanna January 2022 (has links)
Individual pro-social behaviour has been explored by academics and others in a variety of situations and contexts. Why people act selflessly on behalf of strangers is an intriguing topic and has not been studied in the specific context of the Crown courts before. This study has three phases. The first allows independent witnesses to describe their emotions, decision-making and motivations for taking part in the criminal justice process where there is no overt benefit for themselves to do so. The study identifies three key points in the witnesses’ journey through the process and tests the reactions of the witnesses at these points. This approach allows any changes in their thinking to be recorded and analysed. The second phase of the research asks other participants who have not been witnesses to imagine themselves becoming aware of three different scenarios where a violent crime is occurring. These participants are asked to think about their reactions to each scenario, and if they expect themselves to act as witnesses, asks what their motivations would be. The imagining witnesses’ reflections are compared to those of the real witnesses from Phase 1. Finally, phase three disseminates the results from phases one and two to senior professionals working in the criminal justice sector. Their thoughts and suggestions are also applied to the results to identify and encourage best practise.
137

Exploring the Mechanisms and Motivational Origins of Children’s Early Prosociality

Becker, Nele 26 July 2024 (has links)
The aim of this dissertation was to gain a better understanding of the development of the motivations underlying early prosociality through studying the mechanisms underlying sociality and prosociality. This was done in three studies. Study 1 focused on the development and interrelation of social and prosocial attention in 10-, 14-, and 24-month-old children. In study 2 children’s levels of positive affect after engaging in active prosocial behaviour (helping) and in a social interaction were examined. Study 3 combined data from Study 1 and 2 to investigate the interrelation between the mechanisms underlying (pro)social attention and the positive emotions following (pro)social behaviour in 14- and 24-month-old children.
138

Trade-offs And Social Behaviour In The Cellular Slime Moulds

Sathe, Santosh 10 1900 (has links) (PDF)
By combining laboratory experiments with field work, I have looked at the following aspects of cellular slime mould (CSM) biology: (a) the genetic structure of social groups (fruiting bodies) in the wild and its relation to the role of large mammals as dispersal agents; (b) social behaviour in clonal, intra-species polyclonal and interspecies social groups and (c) fitness-related trade-offs with respect to life history traits as a possible mechanism for coexistence and cooperative behaviour in CSMs. The major findings of this study are as follows: (a) individuals belonging to different strains of a species, different species and genera occur in close proximity, even on a speck of soil (250µm–1mm) or the same dung pat; (b) social groups formed in the wild by Dictyostelium giganteum and D. purpureum are generally multiclonal; (c) genetically diverse strains can co-aggregate and form chimaeric social groups; (d) in chimaeric social groups, strains differ in their relative sporulation efficiencies; (e) the fact that strains co-exist in spite of this may be attributable in part to trade-offs between various fitness-related traits as can be demonstrated in the case of wild isolates of D. giganteum in pair wise mixes. The Dictyostelids or CSMs are haploid, eukaryotic, soil dwelling social amoebae with an unusual life cycle (Bonner, 1967; Raper, 1984). They exist as single cells in the presence of food (bacteria, yeast, fungal spores). Once the food is exhausted, they enter the social phase of their life cycle. Approximately 102 to 106 amoebae aggregate at a common collection point and form a starvation resistant structure called the fruiting body. In many species a fruiting body is made up of an aerial stalk of dead cells and a ball of viable spores on top. In other CSM species (not part of this study), all amoebae in a fruiting body differentiate into spores and the stalk is an extracellular secretion. The CSM life cycle raises fundamental questions related to the evolution of an extreme form of ‘altruism’ in the form of reproductive division of labour in social groups. The spore–stalk distinction in the CSMs is analogous to the germ–soma distinction in metazoans, although, the CSMs achieve multicellularity not by repeated divisions of a zygote but via the aggregation of many cells which may or may not be clonally related (Bonner, 1982; Kaushik and Nanjundiah, 2003). Social behaviour in the CSMs offers interesting parallels to what is seen in the social insects (Gadagkar and Bonner, 1994). The origin and maintenance of ‘altruism’ has been a long-standing issue in sociobiology. Because of their simple life cycle and experimental tractability, the CSMs are ideal for studying the evolutionary origin and maintenance of social behaviour, in particular of ‘altruistic’ behaviour. By elevating spores above soil level, stalk cells, protect them from noxious compounds and predators present in soil and also facilitate their passive dispersal. In the course of doing so they die. The death of stalk cells appears to be an extreme form of altruism. Knowledge of the genetic structure of social groups and populations including patterns of kinship is essential for modelling the evolution of ‘altruism’. Thus, it is important to understand the genetic structure of CSM social groups in the wild. For this, social groups (fruiting bodies) of CSMs were isolated from undisturbed forest soil of the Mudumalai forest reserve in South India. Soil and animal dung samples were brought to the laboratory and quasi-natural social groups were generated by inoculating the samples on non-nutrient agar. The fruiting bodies from various CSM species were formed by these isolates. Since soil and dung samples were not perturbed in any way, the fruiting bodies were formed as they would have in nature. When compared to soil, dung samples contained a higher CSM diversity and more CSM propagules. The presence of CSMs in fresh animal dung makes it likely that they were transported and dispersed over long distances through the gut of these animals. Such dispersal is likely to be preceded by a thorough mixing of spores in the gut. That increases the probability of co-occurrence of different genotypes in a social group. This possibility was confirmed by genetically characterizing spores in social groups of Dictyostelium giganteum and D. purpureum collected from the wild. Random amplification of polymorphic DNA (RAPD), a simple and reliable molecular technique, was used for genotyping spores within a fruiting body. 17 fruiting bodies (8 from animal dung and 9 from soil) were studied. 15 out of 17 (9 out of 11 of D. giganteum and 6 out of 6 D. purpureum) were polyclonal; the minimum number of distinct clones in a single fruiting body was 3 to 7 (animal dung) and 1 to 9 (soil). Therefore in D.giganteum and D. purpureum, chimaeric social groups seem to be the norm. This suggests that other species of CSMs form intra-species chimaeric social groups in wild, though clonal fruiting bodies occur too. The next objective of this thesis was to test whether genetic heterogeneity had functional consequences. That is, when different strains come together in an aggregate, do they contribute equally to the reproductive (spore) and non-reproductive (stalk) pathways? Amoebae of different clones (strains) of D. giganteum or D. purpureum were mixed and developed together and the number of spores formed by each strain was counted. These experiments confirmed that strains of D. giganteum or D. purpureum can aggregate together and form chimaeric fruiting bodies. The ability to mix (measured as the frequency of chimaerism) depended on the strains used and varied from one mix to another. One strain was often found to ‘exploit’ the other during sporulation, that is, it formed more spores than its expected share. Despite this, strains are found in very close proximity in the soil, which raises an important question: when one strain is more efficient at sporulating than other, how can the two co-exist stably? To investigate what might lie behind the stable co-existence of strains, I studied various fitness-related traits in the life cycle of D. giganteum. They included the rate of cell division, the time taken to go through multicellular development, the efficiency of slug migration through various depths of soil and the probability of differentiation into a spore. Measurements were carried out on strains taken separately and on their pair wise mixes. Five different D. giganteum wild strains (46a3, 46d2, 48.1a1, F5 and F16) were used. All were isolated from the Mudumalai forest (India). 46a3 and 46d2 came from soil within 10 cm of each other, 48.1a1 from soil about 200m away from 46a3; and F5 and F16 from the same fruiting body (Kaushik et al., 2006; Sathe et al., 2010). Members of a pair differed significantly in the measured fitness-related traits. For example, in the case of 48.1a1 and 46d2, 48.a1 grew faster than 46d2 both individually and in a mix. After starvation, 48.1a1 formed fruiting bodies faster than 46d2; a mix of the two developed at the rate of the faster member, implying that the slower one (46d2) gained from the association with 48.1a1. During slug migration, slugs formed by 48.1a1 came up through a higher depth of soil than 46d2 slugs and did so earlier. Chimaeric slugs were like the more efficient member, 48.1a1, in terms of the maximum depth of soil that was covered, but like the less efficient member, 46d2, in terms of the time taken for slugs to be seen on the soil surface. 48.1a1 seems to have an advantage over 46d2 in all these respects. However, during sporulation in chimaeras, 48.1a1 formed relatively fewer spores than 46d2. Similar trade-offs were seen in all mixes. F5 and F16 displayed an unexpected feature during sporulation; the spore-forming efficiency of either strain depended on its proportion in the initial mix in a frequency-dependent manner that was consistent with a stable equilibrium. Thus, trade-offs between different fitness-related traits contribute to the co-existence of strains. Next, I studied interactions between members of different CSM species. Several species of CSMs were isolated from the same environment (Sathe et al., 2010); a question of interest was to see if amoebae of different species came together to form a chimaeric multicellular body. Five strains (two D. purpureum and three D. giganteum) were used in this study. Amoebae of D. giganteum and D. purpureum co-aggregated. However, there were factors that caused amoebae of the two species to sort out thereafter. The extent of segregation differed between strains, a characteristic that inter-species mixes share with intra-species mixes. In conclusion, the ability of cellular slime moulds to form multiclonal social groups in the wild suggests that one should look to factors in addition to close relatedness to understand the evolution of CSM social behaviour. The existence of fitness-related trade-offs between different traits indicates that individual-level selection can also contribute to the maintenance of chimaeric social groups.
139

Differential Effects of Chronic Fluoxetine on the Behaviour of Dominant and Subordinate Naked Mole-rats

Mongillo, Daniel Luigi 05 December 2013 (has links)
Naked mole-rats are eusocial rodents that live in subterranean colonies with a strict reproductive and social hierarchy. Breeders are socially dominant and other colony members are non-reproductive subordinates. The effects of manipulating the serotonergic system on aggression are well studied in many species, but not in eusocial rodents like the naked mole-rat. For the current study, the effects of fluoxetine hydrochloride (FLX) on status-specific behaviours of subordinates (Experiment 1) and queens (Experiment 2) were evaluated both in-colony and in a social-pairing paradigm to investigate how the serotonergic system influences aggression in this species. In accordance with our main hypothesis, chronic treatment of FLX attenuated the frequency and duration of aggression in queens, but not subordinates, when paired with an unfamiliar conspecific. Further exploration of pharmacological manipulation on status-specific behaviours of this eusocial species may elucidate the neurobiological mechanisms underlying their unique and rigid social hierarchy.
140

Beställarens syn på due diligence : En kvalitativ studie inriktad mot due diligence vid förvärv av bostadsfastigheter

Pettersson, Anton, Sjöberg, Carl January 2016 (has links)
The tool due diligence is used to analyze different aspects in a potential investment. Due diligence started to apply in connection to real estate investments in Sweden twenty five years ago. Gradually the connection between real estate investments and due diligence became more frequent. Today is due diligence performed ordinary in connection with real estate investments. The designated purpose with a due diligence is to analyze relevant aspects who is connected to the success of the investment. In a due diligence process several actors are involved to perform a specific due diligence. Professionals who are involved in the process can be accountants, lawyers, technical consultants with targeted knowledge of specific areas of property investments. The purpose of this study is to describe how the part who attempts to acquire a residential property applies due diligence and the expectations connected to the tool. Totally the study contains five interviews with actors who are connected to property investments. The theoretical part of the study is connected to due diligence and aspects who applies in property investments.The results of the study indicates that due diligence in connection to residential acquisition is object adapted after the properties characteristics and opportunities. The study also indicates that the due diligence isn’t a predetermined process who applies a regular pattern. Instead the process in reality is applied after the client’s preferences. / <p>Validerat; 20160621 (global_studentproject_submitter)</p>

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