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4637 Uppsatser om Global warming potential - Sida 34 av 310
Hälsorelaterad livskvalitet efter total höftprotesoperation - en kvantitativ studie om könets och utbildningsnivåns påverkan på hälsorelaterad livskvalitet
Introduction: Sex and education level has demonstrated effects on health status.Osteoarthritis is a widespread disease that causes reduced health-related quality of life and isthe most common reason for total hip replacement. Osteoarthritis was ranked as the 11thhighest contributor to global disability as reported in the Global Burden of Disease 2010.Aim: The aim of this study was to explore how sex and education level together affectedhealth-related quality of life after total hip replacement. The aim was also to examine whatdimensions of EQ-5D that changed.Methods: The study is a prospective observational study with a quantitative approach. Dataconsisted of education level, obtained from Statistics Sweden (SCB) and health-relatedquality of life before and one year after total hip replacement from the Swedish HipArthroplasty Register (SHAR). Health-related quality of life was measured with astandardised instrument, the EQ-5D, and the study population consisted of 39,141 patients.Results: Womens? EQ-5D-value, before and one year after surgery, were lower in alleducational categories compared with men.
The myth of social media : A qualitative study of deliberation and power in Facebook-pages of the Swedish Police
The purpose of this study is to discuss the use of social media by the Swedish Police for democratic purposes. The idea of citizen empowerment is closely related to the development of new communication technologies such as social media. Yet many studies indicate that governmental institutions rarely make use of the assumed potentials of social media.In this study, the democratic potential of social media is derived from Habermas normative concept of deliberative participation. Operational definitions emphasize discursive equality, interactive reciprocity and external impact. The analytical framework is combined with qualitative text analysis to highlight the conditions of interaction between representatives of the Police and citizens.In conclusion: the democratic potential of social media, from a Habermasian point of view, is to a significant extent neglected at the expense of its strategic advantages.
Studie och riskanalys av sulfidleror i Uppsala stad
Most of the city of Uppsala rests on postglacial clay with a varying content of sulphur. The sulphur occurs naturally in the clay in reduced form as sulphide and the clay is for that reason usually called ?sulphide clay?. Excavation during construction activities gives rise to large amounts of excavation material, of which the sulphide clay is a considerable part.When the clay is exposed to air and water, an oxidation of the sulphides occurs which may produce an acid leachate and the mobilisation of heavy metals bound in the clay or underlying material. The aim of the work has been to improve our understanding of the behaviour of sulphide clays and produce a basis for risk assessment in the future handling of excavation material with high sulphide content.
Hur en ökad marktemperatur påverkar fotosyntes och markrespiration i en boreal skog
During the year of 2008, a powerful earthquake hit the southern part of Iceland, which changed the geothermal conditions in the area around the city of Hveragerdi. Elevated soil temperatures in a nearby forest plantation have contributed to a unique opportunity for researchers to study how an increased soil temperature affects the boreal forest ecosystem, something that partly can be connected to the climate changes which are happening today. The boreal forest is representing a carbon sink and a buffert for the emissions that occurs. Changes in this ecosystem will for that reason contribute to major impact for the global carbon cycle. To study the impact of how elevated soil temperatures affects different processes in a plantation of Sitka spruce, studies were made on the photosynthesis of the trees and the respiration from the soil.
AI TILL BRÄDSPEL : En jämförelse mellan två olika sökalgoritmer vid implementation av AI tillbrädspelet Pentago.
I det här arbetet undersöks och jämförs två olika sökalgoritmer när de används för implementation av AI-spelare till brädspelet Pentago. De två algoritmerna som användes var alfa-betabeskärning och en nyare algoritm som kombinerar genetiska algoritmer och minimax, kallad genetisk minimax. Utvärderingen av resultaten visar att alfa-betabeskärning passar bättre vid implementation av en AI till Pentago än genetisk minimax. Alfa-betabeskärning med ytterligare optimeringar har potential att lämpa sig väldigt väl för implementation av spelare till Pentago. Ytterligare visar resultaten att genetisk minimax inte är en passande algoritm för AI till Pentago.
Solenergi i Stockholm
Stockholm har inför 2050 satt upp ett mål om att bli koldioxidfritt. I strävan mot detta söker man utvinna energi med förnybara metoder och ett alternativ för elproduktion inom stadskärnan skulle kunna vara solceller. Solceller är en teknik som genom sammanfogande av halvledarmaterial och den fotoelektrisk effekt genererar el ur solinstrålning.Avhandlingen studerar dagens solceller, med verkningsgrader uppemot 20 % och deras potential att täcka den mindre del av Stockholms elbehov som idag härstammar från fossila bränslen. Genom att se till en uppskattad befintlig takyta i Stockholms kommun och jämföra den med ytan som baserat på solcellernas potential behövs för att täcka behovet, konstateras att endast en liten del av detta kommer kunna täckas. För att solceller skall vara aktuella inom storskalig elproduktion, krävs att de är ekonomiskt lönsamma och att det i dagens läge är praktiskt genomförbart att montera dem inom stadskärnan.
Naturvetenskap i den fria verksamheten : En studie i hur pedagoger upptäcker och tar tillvara på naturvetenskap
Syftet med denna studie är att undersöka vad som händer i olika naturvetenskapliga situationer i den fria verksamheten i förskolan. På vilket sätt tas sådana situationer tillvara på av pedagogen? Jag har använt mig av videoobservationer i två förskolor i Mellansverige för att försöka upptäcka situationer i den fria verksamheten som har potential att bli en naturvetenskaplig lärandesituation för barnen. I studien observerades 11 pedagoger. Resultatet visade att det finns potential för att utveckla naturvetenskapligt lärande för barnen i den fria verksamheten i förskolan.
Fruits of knowledge : a case study of marketing strategies for small-scale mango farmers in the Nyanza Province, Kenya
This report is focused on marketing opportunities for small-scale mango farmers in the Nyanza Province in Kenya. Kenya is a large horticultural producer in the world. Horticulture is an important income for a large share of the rural population in Kenya but profitability is low due to inefficiencies in marketing systems and poor infrastructure. The conditions for growing mango in the Nyanza Province are very beneficial and there are two harvesting seasons. Mango offers good income opportunities for small-scale farmers in the Nyanza Province.The aim of this study is to identify marketing conditions that will enable prospering business for small-scale mango farmers in the Nyanza Province, Kenya.
Vad är ?rätt? gjutkvalitet? Hur uppnås det?
Ever since ABB has begun diecasting their rotors instead of permanent mold casting it,variation in the quality of the cast has arisen. Diecasting is performed in three differentmachines, M1, M2, M3 with 400, 660 respectively 800 tons of die locking pressures.The aim of this thesis is to answer the following questions:What is the ?right? cast quality? How is the right quality achieved?For sizes 160-180 solutions will be proposed that consider eccentricity between thelaminate and the short circuit ring as well as elimination of the thin Al film that appearson the outer periphery of the rotors.Through considering the statistic material the most often diverging rotor type has beenidentified and one of the actual rotors has been sent to a laboratory to be analyzed inorder to establish the current defects. The result of the analysis shows that there areplenty of gas- and oxide-porosity.It has been proved that every time the dies temperature decreased below 120°C thecontent of gas porosity increased. It is due to rapid solidification of metal that flowsthrough the ?cold? laminate.It has confirmed that enhanced porosity in squirrel cage causes high impedance in therotors.
Mänskliga rättigheter - hur redovisas de?
Globaliseringen har bidragit till nya möjligheter men också hot för företag. Västvärldens företag kan lägga produktionen i delar av världen där kostnaden för att tillverka en vara är lägre än i hemlandet. I dessa leverantörsled kan missförhållanden uppstå såsom kränkningar av mänskliga rättigheter. Intressenter av olika slag fordrar mer transparens av företagen, det vill säga de kräver information utöver den finansiella i företagens rapporter.Hållbarhetsredovisning är en form av redovisning som har blivit allt vanligare och anses generellt innehålla information om företagets ekonomiska, miljömässiga och sociala prestanda. I jämförelse med den finansiella redovisningen existerar det ännu inga standarder för denna form av rapportering.
Avfallshantering på byggarbetsplatser : Potential för en miljöeffektiv avfallshantering
This thesis concerns waste management on construction sites and was conducted on behalf of ICA Fastigheter.Areas of concern:How can an environmentally-efficient waste management system on construction sites be defined? What potential exists for exploiting the waste resources that are generated?How can the waste management be optimised by reducing the quantity of waste and by optimal sorting?How can the client of a project influence the waste management?The purpose of the work was to investigate sustainable waste management in the building and construction sector and to highlight waste as a resource from an environmental and economic perspective.The aim of the work was to define an environmentally-efficient waste management system, to analyse the potential that exists in waste management and to draw up guidelines for optimal waste management.The method consisted of a literature study, two visits to construction sites and four interviews.An environmentally-efficient waste management system means that the waste is managed in the following order of priority:Prevention Reuse Recycling Energy recoveryLandfill The prevention of waste is an important area that has not been adequately explored by the building and construction industry. The quantities of waste could decrease with the implementation of measures such as ordering materials in the dimensions required, prefabricated components, logistics centres with Just-In-Time deliveries, less and improved packaging and less wrapping. The reuse of waste materials and temporary apparatus as well as the use of a return pallet system are examples of reuse that reduces the quantities of waste.In most cases the source sorting work is a matter of course and the proportion going to landfill is down at a low level. The source sorting can be optimised by sorting all materials that can be reused and recycled to use them as a resource.
?Ingen vet vad islam a?r? : En diskursanalytisk studie av tva? verksamheter som erbjuder utbildning om islam i Sverige
The interest in providing a post 9/11 image of Islam to contrast the media?s frequent focus on its practitioners? alleged tendencies toward hostility and violence has in Sweden manifested itself (among other things) in an increased range of courses on Islam given by denominational Muslim organizations. In this paper I examine the construction of Islam by two Muslim organizations that offer education in Islam to non-Muslims in the context of the management?s stated goals of the education. My aim is to illustrate how discourses within these organizations are a result of the combination of local and global conditions..
En holistisk investeringsbank - En fallstudie av fördelarna med att vara involverad i hela M&A-processen
Studies have shown that mergers and acquisitions often fail and that a reason to this might be that investment banks do not take any responsibility for the post merger integration. Despite this there have been no studies of the potential benefits of an investment bank taking a holistic approach to the M&A-process and including post merger integration in its service. This study identifies a couple of investment banks that does this and calls them holistic investment banks. In M&A-theory a successful process is often described according to so called success factors that need to be fulfilled in order to achieve a successful result of the merger or acquisition. The business model and work approach of one holistic investment bank is analyzed in this case study on the base of seven success factors from established theories.
Budgetens utveckling : en studie bland multinationella industriföretag
Abstract Titel: Budget development ? a study of multinational industrial companies Date: 2011-05-27 Authors: Daniel Claesson & Tobias Kronvall Supervisor: Fredrik Karlsson Examiner: Lars-Göran Aidemark Purpose: The main purpose of this study is to follow up and to do a comparison of a study of Arwidi & Samuelson (1991) where we describe and explain budget change, from the traditional budget to today´s modern business management, in some of the leading listed Swedish industrial companies. We will also examine which objectives of the budget are highlighted in the companies. Further, we examine the relationship between organization, strategies and budgeting and how it affects the company management. Method: In this study we used a qualitative approach. We used a multiple case study to examine corporate approach to budgeting.
Kriskommunikation i ett förändrat medielandskap
Uppsatsen, Kriskommunikation i ett förändrat medielandskap, är en fallstudie på webbplatsen www.krisinformation.se. Utgångspunkten för uppsatsen är det förändrade medielandskapet och vad det innebär för kommunikation i kris. Uppsatsen berör flera olika hörnstenar som är viktiga för framgångsrik kriskommunikation. Hörnstenarna rör bland annat vilken tillit och vilket förtroende användarna har för Krisinformation.se, dess innehåll samt Internet som medium i den förändring som skett i medielandskapet när det gäller kriskommunikation.Fallstudien undersöker även om det är privatpersoner eller yrkesverksamma som besöker Krisinformation.se. Den undersöker även vad användarna anser är viktigast när de ska ta del av information i en krissituation gällande om informationen är snabb, kortfattad, relevant eller tydlig.