Modern studies of Roman slave subownership have been heavily influenced by Erman’s seminal study on slave vicarii. Based on the etymology of the word vicarius, Erman argued that initially the main function of vicarii was to be substitutes of other slaves. Only in the late Republic did the word vicarius also start to denote a slave that was part of another slave’s peculium. This thesis challenges Erman’s dichotomist view of the historical evolution of the Roman vicariat by arguing that the semantics of the word vicarius was already fully developed in the earliest stages for which written records have survived, and that it remained unchanged during the whole central period of Roman history (212 BC-AD 235). There was always only one type of slave vicarius: a slave who was part of another slave’s peculium. The term used to denote this type of slave has little historical relevance, as their purpose was not to replace the slaves they were subordinated to in the service of the master. If they ever performed tasks in lieu of their superiors, it was a consequence of being subordinated to them as independently controlled property. Chapter One focuses on the semantics of the word vicarius in literary sources. It shows that the term had two different meanings depending on whether it was used in relation to free people or to slaves, and that the semantic and syntactic context made the two meanings always distinguishable. Chapter Two deals exclusively with legal sources. It argues that, in the writings of the jurists, a slave vicarius was always an asset of another slave’s peculium, regardless of the tasks they performed. Chapter Three focuses on epigraphic texts produced by slave vicarii themselves or by the people who were closely related to them. It shows how slaves used the title vicarius to mark their permanent personal relationship to another slave. It also discusses the criteria used by Erman and Weaver in their unsuccessful attempts to distinguish between different types of vicarii in the sources. Finally, a short postscript provides a concise description of the semantic change the word vicarius went through in the fourth century AD, and it assesses the possibility that slave subownership survived in late Antiquity even though no slave vicarii are attested sporting the title.

The dissertation consists of two essays. In the first essay, we investigate the relation of government ownership to the idiosyncratic volatility of Saudi Arabian firms that traded in the Saudi stock exchange between 2010 and 2016. The results show that publicly traded firms with an increase in government ownership have less idiosyncratic volatility. Furthermore, we investigate market leverage ratio, dividend payout ratio, and illiquidity ratio as potential roles in which government ownership influences the idiosyncratic volatility. The results prove the negative relationship between government ownership and idiosyncratic volatility. In the second essay, we investigate the association between government ownership and momentum trading of firms traded in the Saudi stock exchange between 2010 and 2016. The results show that firms with higher state ownership are expected to have greater price momentum. We used two approaches: the portfolio sorting approach and the fixed effect approach, and these two approaches confirm the positive relationship between government ownership and momentum.

This study investigates the relationship between leadership styles (e.g., taskoriented, relationship-oriented and participative leadership style), perceived control, psychological ownership of the job and several volunteers' work attitudes. Particular attention is given to turnover intentions, psychological withdrawal and senses of responsibility. Research participants were 162 volunteer workers from diverse occupational groups across 19 non profit organizations. Results of Persons correlations and mediated regression analyses demonstrated that (a) psychological ownership did not have relationships with turnover intentions and sense of responsibility but was significantly related to psychological withdrawal; (b) task-oriented, relationshiporiented and participative leadership style were positively related to perceived control, (c) perceived control was positively related to psychological ownership; (d) psychological ownership did not have mediating effects between perceived control and the volunteers' work attitudes; (e) perceived control only had a mediating effect between task-oriented leadership and psychological ownership. Recommendations for further research and implications for management are discussed in the final chapter.

[Truncated abstract] The Dogs and Physical Activity (DAPA) study sought to examine the relationship between dog ownership and physical activity, in particular walking. It used an ecological model to examine the socio-demographic, intrapersonal, social environmental, physical environmental and policy-related factors affecting dog owners walking with their dog. Results from this study are presented as a series of papers four which are published, in press or accepted for publication. A review of the dog ownership, health and physical activity literature and results from qualitative research of the potential barriers and motivators to dog owners being physically active with their dogs were used to develop and test an instrument for measuring dog walking behaviour. The DAPA tool was designed to measure the amount of physical activity people undertake with their dog and dog-specific individual and environmental factors affecting people walking with their dog. It was developed as a supplementary tool for the second RESIDential Environments (RESIDE) survey. RESIDE is a 5-year longitudinal study of the physical activity levels of people building homes in new housing estates in Western Australia. Findings from the baseline survey of 1813 RESIDE participants (44% dog owners) showed that dog owners were 60% more likely than non-owners to achieve sufficient physical activity and sufficient walking and almost 80% more likely than non-owners to achieve sufficient walking for recreation in the neighbourhood after controlling for demographic, intrapersonal and environmental differences. ... Findings from the DAPA study highlight the importance of the local policy and physical environment in encouraging dog walking behaviour. Perceived lack of accessible public open space (POS) and dogspecific exercise areas were identified by focus group participants as major barriers to dog owners walking with their dog. Objective measurement of the local physical environment of dog owners supported their concerns; no dog owners in this study had access to a sign-posted off-leash park [greater than or equal to] 2 acres within their neighbourhood. Furthermore, access to local POS with dog-supportive infrastructure was associated with being a regular dog walker. Overall, the results of this study draw attention to the needs of dog owners in the allocation and design of POS. The prospective component of the DAPA study enabled examination of the causal relationship between dog ownership and physical activity. After adjusting for baseline variables, dog acquisition significantly increased minutes of recreational walking within the neighbourhood by 37 minutes. However, after further adjustment for changes in baseline variables, the increase in minutes of recreational walking within the neighbourhood from dog acquisition reduced to 21 minutes and was no longer statistically significant. Increase in intention to walk appeared to mediate the relationship between dog acquisition and increased recreational walking. This study highlights a number of important physical activity benefits associated with dog ownership and provides evidence to suggest that dog walking has the potential to positively affect the proportion of the community who are sufficiently active.

Thesis (Ph. D.)--University of Hong Kong, 2007. / Title proper from title frame. Also available in printed format.

Thesis (M. Phil.)--University of Hong Kong, 2007. / Title proper from title frame. Also available in printed format.

Multiple Sclerosis (MS) is the most common demyelinating disease affecting the central nervous system. Over 80% of MS patients are in the relapsing remitting stage. Symptoms range from fever, fatigue, emotional distress, tingling, numbness, optic neuritis, spasticity, muscle weakness, impaired coordination, to other abnormal neurological problems. Expression of symptoms is known as a relapse or exacerbation. The cause of relapses is unknown, but multiple factors seem to play a significant role. Possible factors that may influence MS onset and relapse consist of a genetic association, viruses, disruption of the blood-brain barrier, and stress. Stress has shown to have negative implications and may stimulate relapses. Thus, this study examined a possible stress intervention that most people already had available to them, companion animals. Companion animals have been shown to lower blood pressure, decrease heart rate, provide social support, and reduce stress. The main hypothesis was to evaluate whether or not pet ownership and/or attachment influenced the perceived stress level and number of negative life events experienced by MS patients in the relapsing remitting stage. Participants were given a questionnaire that consisted of 7 surveys. The questionnaire accessed quality of life, disease severity, number of negative life events, perceived stress level, level of depression, social support, and pet ownership and attachment level. Our sample population consisted of MS patients seen at the University of Texas Southwestern Neurology clinic from February 23rd to May 21st, 2004. One hundred and forty seven relapsing remitting MS patients were included in the study. Multiple linear regression was used to compare the relationship of stress and number of negative life events to pet ownership and attachment. Results revealed that pet ownership and attachment levels did not affect the stress level and number of negative life events of MS patients. No confounders were identified. Interaction terms with disease severity as the dependent variable, pet ownership and perceived stress level or negative life events as the independent variables were not significant. The type of pet owned did not influence the attachment level of the MS patient. In conclusion, the results of this study did not support the hypothesis.

Ägandeformens betydelse för ett företag är en omdiskuterad fråga, som kan angripas från flera infallsvinklar. I avhandling studie diskuteras en ägandeform av principiellt intresse – ICA-Rörelsens ägandeform. Liknande former med inslag av både enskilt och kollektivt ägande är inte alls ovanliga i Sverige. Ägandeformer av denna typ förknippas emellertid inte uteslutande med framgång. Det finns flera exempel på företag med ägandeformer som liknar ICA-Rörelsens som haft svårigheter med kapitaltillväxt och investeringar i kollektivt ägda företag. ICA-Rörelsen har emellertid varit framgångsrik i detta avseende. Denna studie har två syften, dels att analysera denna principiellt intressanta ägandeform och dess betydelse för ett företag, dels att ge perspektiv på två olika modeller för att förklara ägandeformens betydelse för ett företag. De två modeller som tillämpas i studien är en agentteoretisk modell av ekonomisk organisation respektive en strukturell modell av samspelet mellan ett helhetsperspektiv och dess enskilda delars perspektiv vid beslutsfattande i ett företag av ICA-Rörelsens typ. Studien omfattar perioden 1948-87. Empiriska data beträffande utvecklingen av fem variabler av strukturell karaktär under denna period redovisas. Dessutom redovisas empiriska data beträffande några särskilda tillfällen under perioden av stor betydelse för företagets framtida inriktning, s k milstolpar. / Diss. Stockholm : Handelshögskolan, 1989

No description available.

Rates of car ownership in the United States exceed that of all other large nations in the world. This high rate contributes to the unexpressed demand for road space that renders highway expansion useless as a strategy for decreasing traffic congestion. It also necessitates the provision of on-site parking in residential buildings, decreasing the affordability of housing in urban areas. Furthermore, the curb-side parking needed to make room for the high number of cars in the country takes away space that could be used for bike lanes, transit lanes, or widened sidewalks. Therefore, the United States could benefit from a reduction in rates of household car ownership. In this paper, I use cross-sectional data from the National Highway Transportation Survey to determine the impact on heavy and light rail on car ownership in American cities. I find that the presence of heavy rail is associated with a lower rate of car ownership, while the presence of light rail is not.