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742 Uppsatser om Correlation - Sida 40 av 50
Fusionsvergensernas skillnad mellan morgon och kväll på avstånd samt dess repeterbarhet
Syfte: Studiens syfte var att se om fusionsvergenserna på avstånd skiljer sig något mellan morgon och kväll. Samt att se hur bra dess repeterbarhet vid mätning i foropter var.Metoder: I studien deltog 20 personer. Fusionsvergenserna och heteroforin mättes upp i foropter en gång på morgonen och en gång på kvällen, för att sedan kunna jämföras om det blev någon skillnad mellan de båda mättillfällena. Efter mätningen på morgonen skulle det ha gått 7-10 h till nästa mätning på kvällen. Samma mätningar gjordes ytterligare en morgon 24 h till 10 dagar efter den sista mätningen.
Rabies awareness, incidence and vaccination coverage in Lilongwe, Malawi
Rabies kills about 55 000 people every year and more than 90% of infected humans are considered getting the disease from dog-bites. To control the disease and eventually eliminate human rabies, the most efficient and economic method is to keep the dog population vaccinated. The objective of this thesis was to evaluate the situation of canine rabies in two urban areas in Lilongwe, Malawi, where canine rabies is enzootic. In each area 200 household-interviews were conducted in September and October 2013. Focal points were awareness of the disease, human incidence as well as vaccination coverage in the dog population.
Evaluation and Comparison of Ecological Models Simulating Nitrogen Processes in Treatment Wetlands,Implemented in Modelica
Two ecological models of nitrogen processes in treatment wetlands have been evaluated and compared. These models have been implemented, simulated, and visualized in the Modelica language. The differences and similarities between the Modelica modeling environment used in this thesis and other environments or tools for ecological modeling have been evaluated. The modeling tools evaluated are PowerSim, Simile, Stella, the MathModelica Model Editor, and WEST. The evaluation and the analysis have been performed using McCall?s factors for software quality (McCall et al, 1977), a Correlation analysis and the Constant Comparative Method (Glaser&Strauss, 1999).
Sociala mediers betydelse på dagens marknader : Företags vilja att förstå sina kunder
Title: The role of social media on today?s markets ? Companies? desire to understand theircustomersAuthors: Kristoffer Avci-Nåmark & Patrik WidlundBackground: The markets of today are characterized by dynamic conditions because of thecontinuous change in consumer preference. Due to this, the interaction between the company and its consumers is gaining importance as companies find the need to increase their knowledge about the market. Out of this need social media has emerged as a tool forcompanies to improve their communication with customers. The popularity of social media isincreasing at a rapid rate and sites such as Facebook now has around 500 million usersworldwide.
Intrerssenter, identitetskriser och ideologi: Formandet av stadens varumärke
The purpose of this paper is to evaluate the work situation for temporary workers within the field of journalism. During the past decade, influential external forces such as commercialization, new technologies and increased competition have brought great changes within the industry. As a result, employers value flexibility of manpower, not least to reduce cost, where the flexible employee is usually leased by the media company from a manpower company. Today it is a normal practice with manpower companies and this way of hourly paid form of employment. Although the temporary worker can sometimes benefit from this kind of employment, there are also significant setbacks like job insecurity.
Rasistiska praktiker i det sociala arbetet - och dess påverkan på kvinnor med invandrarstatus
The purpose of this essay is to investigate how social workers experience and understand subjects such as racism, discrimination, and similar attitudes that can exist in institutions of social work. We also want to bring to light how ?race?/ethnicity, gender and class are related to uneven access to Swedish welfare. Our main questions aim to examine how structural and institutional racism forms social workers daily practices and how this in turn affects ?immigrant? women.
Test-retest reliabiliteten i balanstesterna Unilateral stance, Limits of stability och Rhythmic weight shift
Människans balanssystem kan beskrivas utifrån tre delkomponenter, det vestibulära, det visuella och det somatosensoriska systemet. En rad olika skador och sjukdomar som påverkar dessa system stör därmed också balansen. Balansstörningar kan verifieras med hjälp av funktionella tester eller teknisk utrustning. Då teknisk utrustning används är det vanligt att instrument utnyttjas med kraftplattor i syfte att mäta det posturala svajet hos patienterna. Vid balansutvärdering är det viktigt att de instrument som används är validitets och reliabilitetstestade.
Utveckling av kognitiva färdigheter och läsförmåga hos barn med mild och måttlig hörselnedsättning i ett ettårsperspektiv
The capacity to process and to remember information is a basic condition for language ability and for coming reading ability. Reading ability is strongly connected to phonological awareness, receptive vocabulary knowledge and working memory capacity. In what way hearing impairment in children affects development of cognitive skills and later on reading ability is an area that has attracted minor attention for research.The aim with this study was to investigate changes in cognitive skills and reading ability in children with mild or moderate hearing impairment after one year of progress and furthermore if any connections between any increases of the abilities were to be found. Comparisons were made with results from age adequate normal hearing children. Moreover prosodic ability on word-level was tested this year.
Utbildningens betydelse för våld i nära relationer. En litteraturbaserad studie om associationen mellan kvinnors utbildningsnivå och våld i nära relationer i låg- och medelinkomstländer.
Introduction: Intimate partner violence (IPV) is a great public health issue that can cause serious physical, psychological and psychosomatic injuries to the woman. Education is one out of many important protective factors against IPV. Aim: This study aimed to investigate the association between women?s educational level and IPV in low- and middle-income countries, the interaction between the education of the woman and the man and IPV, how education on different levels (individual-, family- and community-level) influences IPV and how gender is connected to education and IPV. Method: A literature-based study with 12 selected scientific articles as the foundation for the analysis was performed.
Värmeöverföring i bergvärmesystem : En numerisk analys av den ringformade koaxiala borrhålsvärmeväxlaren
The borehole heat exchangers of today suffer from poor thermal and hydrodynamic performance. The purpose of this thesis is to improve the performance of ground source heat pump systems and thermal energy storages by increasing the energy efficiency of the borehole heat exchangers. For this reason, the annular coaxial borehole heat exchanger (CBHE) has been analyzed. This type of heat exchanger is interesting in terms of both thermal and hydrodynamic performance. A model has been set up in the program Comsol Multiphysics in order to investigate the heat transfer characteristics along the borehole.
Kartläggning av Sveriges landstings användning av telemedicin
Sweden's aging population makes the need for a viable health care urgent and telemedicine can be a solution to enable older people to receive or give themselves care in their homes. Furthermore, implementation of telemedicine has the potential to realise profits in society by increasing the accessibility of health care and minimizing travel costs. Sweden?s low population density and geographical configuration makes the advantages of telemedicine even more appealing. To illustrate the differences between the county councils? use of telemedicine and thus increasing the possibility for coordinated care between them, the authors have on behalf of the Innovation Centre at the Karolinska University hospital mapped the amount of telemedicine technologies that are available in the Swedish county councils? today. To collect information an electronic survey and video or telephone interviews were used.
Utvärdering av Near Field Communication och Certified Wireless USB: Säkerhet vid utveckling av applikationer
Today?s society is one where technological advances are made daily, which
increases the need to stop and assess the risks against users? integrity when
integrating new technology in contemporary systems all the greater. We have
taken two technologies, Near Field Communication and Certified Wireless USB,
whose envisioned area of use is to be integrated into mobile phones, and
evaluated what security threats are revealed for the respective technologies.
The threats against security have been identified through research of the
standards and existing reports for each technology. Practical experiments have
not been conducted on account of us not having access to any equipment to run
such trials.
Dog bite incidence and associated risk factors : a cross-sectional study on school children in Tamil Nadu
Dog bites pose a threat to public health globally and can lead to infection, disfigurement, incapacity, post-traumatic stress syndrome and even death. In geographical areas where rabies is endemic, bites from infected dogs account for over 90% of the human rabies cases.
Children have been proven to be at a greater risk of being bitten by dogs and subsequently contracting rabies than adults. In this cross-sectional study, a school survey was undertaken in association with a rabies awareness campaign in India, to investigate the dog bite incidence and various risk factors associated with dog bites as well as assessing the knowledge of safe interaction with dogs among children in the age group 10-18 years. A total of 1295
questionnaires were collected. 43.2 % (n=556) out of the respondents were boys and 56.8 % (n=731) were girls with a mean age of 14 years.
Definition av stötdämpares fyllnadsgrad
Shock absorber units play a key role in establishing the driving dynamics and performance of automobiles. Öhlins Racing has manufactured high-tech automotive shock absorbers for over 30 years. Öhlins Racing?s advanced technology has contributed to over 200 world championships in automobile racing. Öhlin?s manufacturing process has long utilized automated fluid filling equipment during the final shock absorber unit assembly stage. The filling process consists of vacuum pumping the shock absorber unit and subsequent transfer of fluid. Vacuum pumping is necessary to remove residual air from the shock absorber unit prior to initiating the liquid filling stage. The presence of undesirable gases drastically compromises the performance of a shock absorber. The filling degree, defined as the final ratio of air to oil, is determined by the specific filling protocol as well as the specific equipment utilized.The current investigation aims to develop a viable technique to accurately determine residual air content in shock absorber units. If the filling degree can be appropriately quantified for a specific manufacturing process, then the air/oil ratio may be quantitatively related to shock absorber performance. The utilized measurement method must be completely integrated into the manufacturing process to guarantee shock absorber performance specifications according to the manufacturer?s standards. By utilizing the measurement method developed in this work, the manufacturing process, manufacturing equipment and product specifications can all be tailored to provide improved filling conditions.The developed measurement method provides accurate quantification of the filling degree under a wide range of processing conditions. The method establishes the relative quantity of air in the shock absorber unit by performing in-situ compressibility tests. The fill ratio can be controlled and varied by manipulating the vacuum pressure exerted during the filling process. Performance tests, however, indicate no Correlation between filling degree and unit performance..
Kan D-vitamintillskott minska depressiva symtom?
Background: Sweden is a country where vitamin D deficiency seems to be common, partly because of its geographical position, which reduces the availability of UVB radiation, but also that people avoid sunlight due to increased skin cancer risk. Research shows that vitamin D plays an important role in the prevention of many diseases such as cancer as well as autoimmune and neuropsychiatric diseases.Vitamin D is a fat soluble pre-hormone and a collective name for closely related compounds which act as hormones after undergoing a transformation in the body.Humans can utilize vitamin D through diet and produce it in the body by exposing the skin to the sun. Previous observational studies and epidemiological studies have established a hypothesis that there seems to be an association between vitamin D supplementation and reduction of depressive symptoms.Objective: The aim of this study was to investigate if vitamin D supplements may decrease depressive symptoms.Methods: This work is organized as a literature review and article search is made in the database PubMed in January 2012. Keywords used were ?vitamin D and depression? and inclusion criteria were: randomized clinical trials, be conducted on humans, written in English.