No description available.

No description available.

Evidence is accumulating that the imposed lifestyle associated with shift-work can adversely affect many aspects of nurses’ mental health. The 2005 National Survey of the Work and Health of Nurses stated depression is more common in nurses than in the general population. Minimal research has focused on depression as a direct outcome of shift-work for registered nurses. The purpose of this study was to examine the relationship between shift-work and depressive symptoms in female nurses. This study was a discrete analysis of data collected from 151 registered nurses enrolled in the primary study entitled “Work and health: Optimizing nurses’ physical health in hospital work environments” (Tranmer, McGillis-Hall, Katzmarzyk, Parry, et al, 2007). A descriptive correlational design was utilized to describe the relationships between shift-work and depressive symptoms. Shift work was categorized as participants working 8 hours, 12 hours, or a combination of both 8 and 12 hour shifts. Depressive symptoms were measured with the Centre for Epidemiological Studies Depression Scale (CES-D). Bivariate analysis showed no statistical significant correlations between CES-D scores and shift-work. However, correlational analysis between individual CES-D questions showed a positive association between shift-work and lack of concentration, decreased motivation to complete tasks, feeling depressed and difficulty sleeping as adverse effects. Fifty-two percent of these shift workers identified problems with keeping focus on the tasks they were performing, 40% described an alteration in motivation, 31% felt depressed and 69% reported sleep disturbances. This study found no direct association between shift-work and depression but found that individual symptoms of depression were related to the shift-work schedule. Studies addressing the effects of shift-work on mental health need to explore options to decrease depressive symptoms, such as impaired cognition and motivation, that were shown to impact upon the worker’s quality of life and quality of care provided. / Thesis (Master, Nursing) -- Queen's University, 2009-09-23 17:05:53.606

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We present the 1.4-GHz catalog of the galaxy cluster field RCS J022434-0002.5, at a redshift of z = 0.773. A total of 194 sources were found within a ∼0.28 degree2 region to a 5sigma depth of ∼75 muJy. We show that the differential source counts for the cluster field are in good agreement with other radio surveys, and therefore do not indicate a strong excess of radio sources in the cluster compared to the field. We find 13 sources have optical counterparts with photometric redshifts within 1sigma of the cluster redshift and an additional 5 within 2sigma, and we consider these objects to be candidate cluster members. We use their radio luminosities to attempt to diagnose the presence of active galactic nuclei or star formation activity. We find that the cluster candidates are statistically more likely to be powered by active galactic nuclei, rather than star formation.

Generating employee rosters on a 24 hour, 7 day per week basis taking into account fluctuating demand for employees, employee skills, working conditions, training and employee preferences, while ensuring efficiency and equity between the employees is a very difficult task due to the very large number of possible rostering combinations available. The research done in this thesis sets to solve this exact problem for CS Energy's Swanbank Power Station located in Queensland, Australia. -- abstract. / Thesis (PhDMathematics)--University of South Australia, 2002.

Diss. (sammanfattning) Uppsala : Univ., 2003. / Härtill 3 uppsatser.

Zugl.: Braunschweig, Techn. Univ., Diss., 2008

Thesis (Ph.D.)--Texas Christian University, 2008. / Title from dissertation title page (viewed Aug. 25, 2008). Includes abstract. Includes bibliographical references.

Thesis (M.S.)--Virginia Polytechnic Institute and State University, 1993. / Vita. Abstract. Includes bibliographical references (leaves 111-116). Also available via the Internet.