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880 Uppsatser om Loss of habitat - Sida 2 av 59
Kartläggning av allmänhetens attityd till hörselnedsättning och självskattad kunskap om hörsel ? en enkätundersökning
Objective: 1.4 million people in Sweden state that they are having problems with hearing and the majority havehad no contact with the hearing rehabilitation services. To have a hearing loss seems to be associated withseveral negative attributes. This could be due to bad attitude and insufficient knowledge on hearing loss intoday?s society.Purpose: The purpose with this study was to map the adult populations attitude towards hearing loss and selfratedknowledge of hearing with a survey.Methods: A web survey was made for this study. An official link to the survey was shared from two Facebookaccounts to a total of 997 contacts and a total of 247 responses were collected.Results: The majority of the respondents have estimated their general knowledge of hearing to fairly extensivefollowed by very small.
Hörselnedsättning bland diabetiker med typ 1-diabetes respektive typ 2-diabetes ? en jämförande metaanalys
Background: Diabetes mellitus is one of today's major public health problems, affecting up to 347 million people worldwide. Several studies have shown a correlation between hearing loss and diabetes mellitus. However, it is still unclear whether this correlation differs between type 1-diabetes and type 2-diabetes.Purpose: The purpose of this study is to investigate whether there is any difference in prevalence of hearing loss in type 1-diabetics versus type 2-diabetics.Method: A meta-analysis was performed based on ten studies that were identified through the database PubMed and through manual searching of references. Odds ratios for the risk of developing hearing loss were calculated in each study. Pooled odds ratios were calculated using a random effects model.Results: Pooled odds ratios indicates that both type 1-diabetics and type 2-diabetics are more likely to develope hearing loss compared to non-diabetic controls.
Renar och klövvilt på järnvägar : en studie i järnvägars effekter på ren, älg och rådjur i norra och mellersta Sverige under 2005
Roads and railroads have significant impact on the surrounding landscape and the wildlife living in it. This study aims to provide an overview of the effects caused by railways to reindeer, roe deer and moose in Sweden in order to make more detailed assessments within this topic in the future. The method used is a study of literature on the subject and a synthesis of databases with information about wildlife mortalities, traffic intensity and fences in the study area; northern and central Sweden. The databases were used to compile digital maps using ArcGIS.
Infrastructure brings change to the surrounding landscape and its function as habitat for wildlife. Railroads cause barrier effects such as fragmentation, wildlife mortality, Loss of habitat and loss of connectivity.
Parametriserad modell av motorprototyp med Solidworks
The purpose of this thesis has been to build a parameterized model of a prototype motor in the program Solidworks, to use in future optimization of aspects of effectiveness and weight. The result were two models. The first model were one minor part of the whole design in 2D, to be able to optimize and study the minor part with a faster loss simulation. The second model was the whole design in 3D. The whole model were done with the three programs Solidworks, Comsol and Matlab.
Selection of habitat and resources during migration by a large mammal : a case study of moose in northern Sweden
Migration is a worldwide phenomenon that has occurred for thousands of years in a vast variety of species. The general knowledge of migrating animals is poor even though billions of animals from a range of different groups migrate every year. The human impact on migrating ungulates is high and many populations are declining globally due to direct and indirect causes. Hence it becomes vital to study the migration phase and the habitat and resources selected during migration. The objective with this study was to identify the habitat characteristics and resource selection of moose during migration and compare the selection between different seasons and utilization distribution (relative frequency distribution for the points of location of an animal over a period of time) categories.
Habitatmanipulering, en tveeggad bekämpningsmetod? : potentiella möjligheter och risker med alternativa födoresurser och skyddande habitat
Bevarande biologisk bekämpning är en bekämpningsstrategi som används för att bevara eller öka mängden av en specifik naturlig fiende till den skadeorganism som ska bekämpas. En skillnad i jämförelse med andra strategier inom biologisk bekämpning är att inga biologiska bekämpningsorganismer tillförs, i stället främjas de naturliga fiender som redan finns i odlingen och det omgivande landskapet. Habitatmanipulering är en metod inom bevarande biologisk bekämpning som bygger på en förändring av de naturliga fiendernas habitat som skall resultera i en förbättrad tillgång av nödvändiga resurser så som alternativ föda, skyddande habitat och alternativa bytes- och värddjur. Den här litteraturstudien undersöker potentiella möjligheter och risker med två metoder inom habitatmanipulering. Den ena metoden bygger på att inkludera blommande växter i en odling för att skapa en förbättrad tillgång av alternativa födoresurser, så som pollen och nektar, till naturliga fiender.
Strategier och beteenden bakom en varaktig viktminskning : en enkätundersökning gjord på individer som bibehållit sin vikt i mer än ett år
AimThe purpose of this degree thesis was to find out what strategies and behaviours earlier overweight individuals have used to maintain their weight loss.- What strategies did the participants use to loose weight?- Which behaviours are related with maintained weight loss?MethodThe study is based on an encase research with earlier overweight individuals who had lost weight with help of the Cambridge method. The chosen population who further more had maintained their weight for over one year have answered questions about their successfully maintained weight loss.ResultsThe results are based on 32 overweighed individuals, 9 men and 23 women, who had maintained their weight loss for over one year. After the initial weigh loss by help of the Cambridge method their main strategy was to change eating behaviour ? by eating on regular schedule, choose food with less fat ? and to increase their physical activity.
Habitat preference and dispersal of a sandassociated beetle, Apalus bimaculatus
Species that have a high degree of specialization and poor dispersal ability can be more prone to extinction than more generalist species and good dispersers. How these species traits affect the viability of populations is dependent on landscape factors,such as isolation and connectivity. Additionally, interactions between species (e.g. symbiosis), and how these interactions vary spatially and temporally can have a large impact on populations. When the range and habitat areas of a species continuously decrease, management strategies are often needed if the species shall be able to survive.
Kartläggning av hörselnedsättningar, öronsjukdomar samt diagnostiseringsmöjligheter hos 1 ? 5 åriga barn
Ear disease and hearing loss in preschool children can be difficult to discover and diagnose. This paper investigates ear disease in 20 children controls from 1 to 5 years of age. The aim of the study was to map prevalence and incidence for ear disease, and prevalence of hearing loss in a group of children.Twenty children wide aged 1, 1½, 3 and 5 were included and investigated according to a set protocol with psychoacoustic tests, tympanometry, ear microscopy and a parental questionnaire. The majority of the children could be evaluated by age adequate psychoacoustic tests and otoscopy. Tympanometry was the investigation method that was most difficult to perform.
Balis trädgårdar
The urbanization of the world is increasing. How it affects bird populations have been well studied during the last decade, and comparisons between urban and non-urban habitats have been carried out. A common method for measuring habitat quality is to calculate the population density. This method is easy to use, but have been criticized during the last couple of years. In this study, data of population densities was compared with data on reproduction success.
GIS-modellering av habitat för vitryggig hackspett (Dendrocopos leucotos) som hjälpmedel i naturvårdsplanering på landskapsnivå :
The white-backed woodpecker is a forest bird being critically endangered in Sweden. The species is dependent on older forests rich in deciduous trees and dead wood. The main problem for the survival of this species is present shortage of habitat. Conservation work on this umbrella species is at present focused on finding remaining or emerging habitat networks. Large areas are scrutinized in search for suitable habitats to be protected or managed for the species sake.
Sand pits as habitat for ground beetles (Carabidae) : does the area affect species number and composition?
Sand pits are a valuable habitat which can hold many sand living species including several endangered ones. As many sand habitats with exposed sand are declining, sand pits have a potential as a substitute habitat. This study was conducted to see what effect the area of a sand pit has on species number and composition of ground beetles (Coleoptera: Carabidae). Also, the effects of other environmental variables were tested, for example the proportion open sand, vegetation cover, sun exposure and tree cover. The study was conducted in the county of Uppsala in 2008 and included 13 sand pits with areas between 200 and 180,000 m2.
Vems landskap ska förändras för att öka den biologiska mångfalden? : En studie av skillnaderna i odlingslandskapets konnektivitet med avseende på två skyddsvärda arter med olika preferenser
Organisms relevant for nature conservation dont follow administrative borders. Because of this there is a need for a landscape perspective within conservation and planning, and a need for the species of interest to have legal protection. Network analysis adapted for ecological purposes has grown to become a powerful tool for studying and communicating the relationships between species dispersion and access to habitat. In this study the following question is posed: How is the Osmoderma eremita and the Pernis apivorus dispersal possibilities in the small scale cultivated landscape of Borås affected by exploitation in respect to a) dispersal ability, b) habitat quality, c) position of habitat patches in a network? The analysis were based on municipal and regional nature conservation data, which in due to confidentiality is not accounted for in the report by maps, coordinates, etc.
Familjen & Döden : föräldrars förhållningssätt till sina kvarvarande barn
The aim of this study was to explore the role of death in the Swedish family. How do parents and families cope with the loss of a child/sibling? How do the remaining children in a family fare after loss of sibling? The study was caused out partially through a selective review of the literature on children loss in families and partially through interviews with families who had experienced death of a child. The results were analysed with help of Family system theory, Emotional theory and with an Esoteric perspective. The findings of the study were that although families do eventually cope with the situation the majority is struggling to adjust.
Identitetsutveckling och delaktighetsprocesser med stöd av internet -En beskrivande litteraturstudie om tonåringar med hörselnedsättning
A hearing loss may affect the identity development and participation among adolescents. To understand adolescents with hearing loss in modern society, it?s of great importance to ascertain how identity- and participation processes occur in new areas, such as the internet.Objective: The aim of this study was to investigate what research shown regarding identity development among adolescents with hearing loss and whether social processes on the internet may influence the participation of this group.Method: A literature review was conducted to obtain a cohesive framework of research about participation processes and identity development among adolescents. Included articles have been published 1995-2015.Results: The results show the importance of the individual?s identification with the surrounding.