• Refine Query
  • Source
  • Publication year
  • to
  • Language
  • 966
  • 207
  • 179
  • 137
  • 116
  • 72
  • 72
  • 44
  • 37
  • 28
  • 27
  • 20
  • 20
  • 18
  • 9
  • Tagged with
  • 2216
  • 2216
  • 535
  • 237
  • 173
  • 159
  • 150
  • 141
  • 133
  • 127
  • 126
  • 120
  • 118
  • 116
  • 112
  • 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.
431

Swedish Companies´ Perception of Quarterly Reports

Wiklund, Daniel, Sölgén, Samuel, Olsson, Oskar January 2008 (has links)
Aim of the Thesis: To investigate from a company’s perspective if the pressure for companies to produce quarterly reports has turned away their attention from working towards long-term value creation. The companies investigated are listed on the large-cap section on the Swedish stock exchange (OMX Nordic Exchange Stockholm AB). Methodology: A quantitative approach has been used and empirical data has been collected through questionnaires. The data has been analyzed and presented with descriptive statistics. Theoretical Perspectives: A literature review has been conducted and resulted in a theoretical framework illustrating the concepts of quarterly reporting, long-term value creating, short-termism and forecasting. Empirical data: The empirical data was collected by distributing questionnaires to the companies listed on the large-cap section of the OMX. Conclusion: Companies listed on the large cap section of the OMX do not perceive that the pressure to produce quarterly reports affects them in a negative way. The study also showed that many companies lack awareness of the risks associated with short-termism.
432

Presenting complaint and mortality in non-surgical emergency medicine patients

Säfwenberg, Urban January 2008 (has links)
In 1995 and 2000 a total of 29 886 non surgical ED visits at Uppsala University Hospital were registered. Presenting complaint, admittance to a ward, length of stay, in-hospital mortality, discharge diagnoses, 30-day and long-term mortality were registered. The presenting complaints were sorted into 33 presenting complaint groups (PCGs). For different PCGs there was different in-hospital fatality rate. Compared to the largest PCG, chest pain, the gender and age adjusted OR was 2.12 (95% CI 1.01 – 4.44) for the miscellaneous complaint group and 2.04 (95 % CI 1.35 – 3.08) for the stroke–like symptom group. Within a given PCG the in-hospital mortality could vary depending on discharge diagnoses. By relating PCG and long term mortality to the expected mortality in the population, the Standardized Mortality Ratio (SMR) could be calculated. The SMR was found to be highest in seizure 2.62 (95 % CI 2.13 – 3.22), intoxication 2.51 (95% CI 2.11-2.98) and symptoms of asthma 1.8 (1.65 – 2.06). For the same discharge diagnoses the long term mortality could differ considerably depending on PCG at ED arrival (p<0.001). Between 1995 and 2000 there was a 30 % increase in ED visits at the non surgical ED. PCGs representing lesser severe conditions had increased. Demographic changes could account for 45 % of the increment and the remaining increase could be ascribed to change in visiting pattern. In the 2000 cohort 41.0 % of all visits were performed by re-visitors. The number of revisits and five-year mortality had an inversed u-shaped relationship were patients with three re-visits within the same year had an increased mortality compared to patients with more or less visits. Conclusion: It is possible to define presenting complaint groups (PCGs) that are robust and consistent over time and useful as a tool for epidemiological studies in the ED.
433

The Mediating Role of Processing Speed in Reading-Related White Matter Tracts and Word Reading Skills of Adult Survivors of Childhood Brain Tumor

Smith, Kristen M 17 May 2013 (has links)
The purpose of this study was to investigate the relationship between word reading and white matter (WM) integrity in the reading system and test a theory-based moderated mediation model such that relationship of WM integrity with word reading is mediated by processing speed and indirect effect is moderated by group. Thirty-seven adult survivors of childhood brain tumor and typically developing adults participated (mean age=24.19(4.51) years, 62% female). Tractography identified the WM tract for three reading system connections. Fractional anisotropy of the IFOF and PT-OT tracts were significantly correlated with word reading in survivors (r=.55, .46, respectively; p
434

Inhibition of the Ubiquitin Proteasome System Enhances Long-Term Depression in Rat Hippocampal Slices

Louie, LeeAnn N 01 April 2013 (has links)
The ubiquitin proteasome system (UPS) depends on three enzymes called E1, E2, and E3 to ubiquitinate proteins and several isopeptidases to de-ubiquitinate them. Ubiquitination serves as a post-translational modification that either tags proteins for degradation by the proteasome or serves to modulate their function. This dynamic system plays a role in synaptic plasticity and dysfunction of the UPS is associated a variety of neurodegenerative diseases. In this study, three inhibitors the UPS, ziram, clasto-lactacystin β-lactone (lactacystin) and G5 were employed to illuminate involvement of the UPS in long-term and short term plasticity in area CA1 of rat hippocampal slices. Ziram, lactacystin and G5 inhibits the E1 ubiquitin-activating enzyme, the proteasome and isopeptidases, respectively. It was found that UPS inhibition enhanced long-term plasticity, by specifically increasing the magnitude of long-term depression (LTD) and altered short term plasticity, measured with paired pulse facilitation (PPF), to varying degrees. These findings establish that the UPS may play a regulatory role in LTD and PPF, and the changes in PPF further indicate that the UPS may be acting presynaptically. Overall, the results suggest ubiquitination and proteasome-mediated proteolysis are important in both long-term and short-term plasticity.
435

Product Innovation and the Effects of CRM usage : a Quantitative study

Sjöberg, Amelie, Wallgren, Christopher January 2013 (has links)
Authors: Sjöberg, Amelie 880410 Wallgren, Christopher 890131   Background: Due to the current competitive climate, it is of major importance for firms to distinguish and differentiate their products compared to the competitors. To achieve that, the firms need to offer a product that the customers want. Firms can integrate with external sources and receive valuable information regarding references and needs. Customer relationship management (CRM) have become a tool firm commonly use in order to receive this information. CRM is a much discussed topic among researchers, and the researchers argue that it is of major importance to identify CRM activities that generates profitability and successful performance to the firm   Purpose: The purpose of the study is to investigate the impact of customer relationship management (CRM) on product innovation in Scandinavian firms.   Method: The survey generated 61 responses from service and manufacturing firms operating on the Scandinavian market (Sweden, Norway and Denmark). The surveys were accessible through Keysruvey.com in April 2013 and generated a response rate of 14% Conclusion: The major conclusion of this research is that all Hypotheses were supported, which indicates that customer involvement, information sharing and long-term partnership has a positive impact on product innovation.
436

”Jag är pappersbruksarbetare och har varit så hela mitt liv” : En kvalitativ studie av betydelsen av arbete och yrkesidentitet för äldre långtidsarbetslösa i en svensk kontext / "I am a paper mill vorker and been so all my life" : A qualitative study of the meaning of work and working identity for elderly long-term unemployed an a Swedish context

Mjörnman, Magnus, Olgerfelt, Mick January 2013 (has links)
Syftet med denna studie är att förstå äldre långtidsarbetslösas situation utifrån deras upplevelser av arbetslöshet och hur detta påverkar hur de konstruerar sin identitet. Studien fokuserar på personer i åldersgruppen 50-64 år som har varit arbetslösa i sex månader eller längre och som är lågutbildade. En kvalitativ metod har använts och datamaterialet för studien samlades in genom semi-strukturerade intervjuer med sju individer. Resultatet analyserades med hjälp av Pierre Bourdieus teoretiska begrepp fält, habitus och symboliskt kapital. Studien visar bland annat att arbete är väldigt viktigt för respondenterna och inte främst av ekonomiska aspekter utan av sociala aspekter. Vidare visar resultatet att respondenterna hade olika strategier för att hantera långtidsarbetslöshet. Den mest framträdande strategin var att skapa en liknande struktur i deras vardag som de hade när de arbetade. Respondenterna ser också sig själva i de yrken som de arbetade inom innan de blev arbetslösa och de har svårigheter att söka arbeten i andra fält av arbetsmarknaden. / The aim of this study is to understand elderly long-term unemployed situation by their experiences of unemployment and how this affect how they construct their identity. The study focuses on people in the age group 50-64 which been out of work for sex months or longer and have a low education. A qualitative method was used and the data for the study was collected by semi-structured interviews with seven individuals. The result was analyzed using Pierre Bourdieus theoretical terms field, habitus and symbolic capital. The study shows, among other things, that work is really important for the respondents and it’s not primary because of the economic part but the social part. Furthermore the results showed that the respondents had different strategies to cope with long-term unemployment. The most prominent strategy was to create a similar structure in their weekday as they had when they were working. The respondents also see themselves as their old profession instead of being unemployed and have difficulties to search work in other fields of the labour market.
437

The Social Organization of Personal Support Work in Long-Term Care and the Promotion of Physical Activity for Residents: An Institutional Ethnography

Benjamin, Kathleen Mary Bertha 17 November 2011 (has links)
Despite the benefits of physical activity for older adults, many residents living in long-term care homes (LTC) are relatively inactive. Previous research has revealed barriers to physical activity at the resident-level, organizational, and environmental level. However, little attention has been paid to other factors influencing physical activity within the broader institutional complex. The goal of this study was to uncover how the work of personal support workers (PSWs) related to the promotion of physical activity was socially organized. Institutional Ethnography (IE), developed by Dorothy Smith, guided this study. Smith proposed that peoples’ everyday experiences in local settings are organized, often unknowingly, by the actions of people located outside of the local setting and that this organization is textually-mediated. Two LTC homes in Ontario participated in this study. I began data collection by observing PSWs as they went about their work. Next, I interviewed PSWs and other people located inside (e.g. nurses, managers) and outside the LTC homes (e.g. representatives from the Ministry of Health and Long-Term Care (MOHLTC). Lastly, I collected texts that organized the PSWs’ work, such as Ministry standards. The findings revealed that although the MOHLTC standards were viewed as producing something “good” for the residents, some of the standards disrupted the PSWs’ work, which made it challenging for them to support daily physical activity. The promotion of physical activity was seen as an additional program that happened a few times per week and it was parceled out as a professional activity that was socially organized “out” of the PSW role. The findings suggest that local solutions are needed. A good starting point would be to go and talk to PSWs and residents to determine what type of assignments would permit the incorporation of physical activity into daily care. To embed the promotion of physical activity into daily care, a major rethink and reorganization of PSWs work will be needed, including a greater investment in human and material supports for PSWs.
438

Genetic Ablation of the Platelet Activating Factor Receptor Does Not Impair Learning and Memory in Wild-Type Mice or Alter Amyloid Plaque Number in a Transgenic Model of Alzheimer’s Disease

Peshdary, Vian 25 January 2012 (has links)
We have recently established that aberrant alkylacylglycerophosphocholine metabolism results in the increased tissue concentration of platelet activating factors (PAFs) in the temporal cortex of Alzheimer Disease (AD) patients and in TgCRND8 mice over-expressing mutant human amyloid precursor protein. PAF lipids activate a G-protein coupled receptor (PAFR) reported to be expressed by microglia and subsets of neurons in rat. It is not known whether this same expression pattern is recapitulated in mice however, as the expression has only been inferred by use of pharmacological PAFR antagonists, many of which impact on both PAFR-dependent and PAFR-independent signalling pathways. PAFR plays a role in long term potentiation (LTP) induction in rats. PAFR has also been implicated in behavioural indices of spatial learning and memory in rats. Contradictory reports using mice provide ambiguity regarding the role of PAFR in LTP induction in mice. To assess whether PAFR is expressed in murine neurons, I localized PAFR mRNA in wild-type C57BL/6 mice using PAFR KO mice as a negative control. I further showed that the loss of PAFR did not impair learning and memory although this assessment must be considered preliminary as the behavioural test employed was not optimized to detect changes in learning and memory of C57BL/6 mice over time adequately.Finally, I showed that the loss of PAFR in TgCRND8 mouse model of AD had no impact upon Aβ plaque number. My observations suggest that PAFR is restricted to microglial-like cells in mouse hippocampus and as such, it may not play a role in learning and memory.
439

Cross Layer Design for Video Streaming over 4G Networks Using SVC

Radhakrishna, Rakesh 19 March 2012 (has links)
Fourth Generation (4G) cellular technology Third Generation Partnership Project (3GPP) Long Term Evolution (LTE) offers high data rate capabilities to mobile users; and, operators are trying to deliver a true mobile broadband experience over LTE networks. Mobile TV and Video on Demand (VoD) are expected to be the main revenue generators in the near future [36] and efficient video streaming over wireless is the key to enabling this. 3GPP recommends the use of H.264 baseline profiles for all video based services in Third Generation (3G) Universal Mobile Telecommunication System (UMTS) networks. However, LTE networks need to support mobile devices with different display resolution requirements like small resolution mobile phones and high resolution laptops. Scalable Video Coding (SVC) is required to achieve this goal. Feasibility study of SVC for LTE is one of the main agenda of 3GPP Release10. SVC enhances H.264 with a set of new profiles and encoding tools that may be used to produce scalable bit streams. Efficient adaptation methods for SVC video transmission over LTE networks are proposed in this thesis. Advantages of SVC over H.264 are analyzed using real time use cases of mobile video streaming. Further, we study the cross layer adaptation and scheduling schemes for delivering SVC video streams most efficiently to the users in LTE networks in unicast and multicast transmissions. We propose SVC based video streaming scheme for unicast and multicast transmissions in the downlink direction, with dynamic adaptations and a scheduling scheme based on channel quality information from users. Simulation results indicate improved video quality for more number of users in the coverage area and efficient spectrum usage with the proposed methods.
440

Professional Development of Physiotherapists Working in Long-term Care

Marice, Prior 18 October 2012 (has links)
The purpose of this study is to learn about the professional development practices of physiotherapists working in long-term care homes in Ontario. A survey was created based on relevant literature and piloted for this study. The survey included both quantitative and open-ended questions. 44 Physiotherapist responded, which represents approximately 10% of physiotherapists working in long-term care in Ontario. The results indicate that physiotherapists are isolated from their physiotherapist peers and lack access to communities of practice, professional socialisation, professional culture and social regulation. Although physiotherapists’ interactions with interprofessional teams added breadth to their knowledge, these interactions did not enhance their profession-specific skills. Many physiotherapists are seeking professional community and social supports in healthcare settings outside of the long-term care context. The implications of this study are that physiotherapists, their professional associations, and their college must understand the importance of professional socialization in learning, and ensure that physiotherapists working in long-term care have access to and seek such social support. Physiotherapy service providers in long-term care should provide mentoring, support and opportunities for social learning for their clinicians. Finally, long-term care homes and the Ministry of Health and Long-term care need to ensure that policies provide a better definition of the role of physiotherapists in long-term care.

Page generated in 0.0332 seconds