Freshwater ecosystems have long been neglected as an important part of the global carbon cycle. However, research shows that most of the world?s lakes are net-heterotrophic and consequently emitters of greenhouse gases to the atmosphere. In many boreal and north-temperate lakes, most of the yearly emissions usually occur in spring, shortly after ice-thaw. The aim of this study was to quantify the flux of carbon dioxide (CO2) and methane (CH4) in three boreal lakes, during this annual event.

Syftet är att undersöka ifall det finns ett signifikant samband mellan matchresultat och rörelsen i ett fotbollslags aktiekurs. Uppsatsen ska även ge en ökad förståelse gällande skillnader i avvikande avkastning vid olika typer av motstånd och matcher. Uppsatsen är kvantitativ undersökning med deduktivt angreppssätt där avvikande avkastning studeras vid olika händelser med hjälp av diverse hypotesprövningar. Teorierna i uppsatsen behandlar aktievärdering, marknadseffektivitet samt aktieägarbeteende. Empirin presenteras i form av tabeller med avvikande avkastning och hypotesprovningar vid olika händelser.

The purpose with this studie was to examine how individuals with experience of a long-term drugabuse describe their transformationprocess, and if this process has contributed to a change in their selfdescription. The studie was delimit to examine the transformationprocess, not in relation to what sort of abuse the informants had, or in relation to gender. The studie anwered questions concerning motivation to stop abusing, how the informants started the drugcareer, and how life as an abuser is described. In the studie qualitative method was used, five semi-structured interviewes were made with individuals who had a long-term addiction in the past. Symbolic Interactionism was the theoretical frame of referense that was used for analyse.

Syftet med denna studie är att undersöka hur självskattad arbetstillfredsställelse kan prediceras av egenkontroll, arbetsledningsklimat, arbetsgemenskap, stimulans från arbetet samt arbetsbelastning. Syftet är även att se om resultatet påverkas av ålder, kön och anställningstid. Studien är genomförd på ett privat assistansbolag. Bakgrunden till valet av undersökningsområde har sin utgångspunkt i tidigare forskning som beskriver att de ovan nämnda variablerna har stor påverkan på den totala arbetstillfredsställelsen. Populationen i denna studie är personliga assistenter och urvalet består av 53 assistenter.

In the collections of the Vasa Museum, 100 leather objects have exhibited salt precipitations. The objects, that have previously been impregnated with PEG, have become deteriorated and fragmented due to the precipitations. During a previously conducted study it was established that the precipitations consisted of iron and sulphur. However, it was not established whether they occurred in the leather?s inner structure and no treatment plan was developed.

Bakgrund Oväntad död är en traumatisk upplevelse förnärstående, kris och sorg i någon form är ofrånkomligt isamband med död och saknad. Vårdpersonal står inför en svårutmaning i omvårdnaden för att ge ett kompetentomhändertagande. Det korta mötet mellan vårdpersonal ochnärstående har visat sig vara av betydelse. Syfte Syftet medlitteraturstudien var att belysa närståendes behov ochvårdpersonals uppfattningar om närståendes behov i sambandmed en oväntad död. Metod Metoden var en litteraturstudie därdet ingick både kvalitativa och kvantitativa artiklar.

In the light of ever increasing international trade around the globe, affecting men and women in all countries, it is surprising that so little attention is given its gender effects. The effects of trade are said to be gender neutral, but could potentially act reinforcing on the existing gender patterns in a society. The aim of this thesis is to examine whether the implications for men and women in relation to trade liberalization can be found to differ. By stylizing some differences between men and women, this is done by examining the theoretical implications mainly via the Heckscher-Ohlin model and through a Beckerian approach. The implications found are then compared with the findings in existing empirical work.

The main purpose of this study has been to explore and determine how the journalistic work was used by internet users to start and keep a discussion on the internet going.We started in the aftermath of a local arson in a town of Sweden, where a discussion on the internet forum Flashback and the local newspapers commentary fields was raised.We have used these discussions to study what part the journalistic work play in these events. To do that we used a critical discourse analysis and a rhetoric analysis to investigate how these discussions use news articles to make their point. We divided the comments into four different categories, which are comments about understandings of the event, comments that talked about the matters of fact, criticism pointed at the newspaper and comments that identify the offenders.The result of the analysis shows that both forums use journalistic work as facts in their discussions. Both also use earlier articles that were written before the arson, to make their point in the discussion..

Francisella tularensis, the causative agent of the zoonotic disease tularaemia, is highly contagious and potentially fatal for a wide range of wildlife species of the northern hemisphere, also humans. Although recognized as a pathogen for over 100 years, much still remains to be elucidated concerning the ecology and transmission of the bacterium, hence this literature overview aims at compiling data regarding the aquatic association and the role of mosquitoes in transmission of Francisella tularensis subspecies holartica, the sole subspecies in Sweden. While a linkage between the bacterium and natural waters stands beyond dispute, there is no consensus in the literature concerning its potential as a reservoir. However, two prevailing theories can be distinguished; one proposes the water association being mammaldependent and thus merely the result of contamination from semi-aquatic mammals living in close vicinity to the water source. The other, quite contrary, suggests mammal-independence and hence that water, possibly in association with protozoa, serves as an environmental reservoir for the bacterium.

Detta arbete är en studie över investeringsmöjligheten vid tävlingsfenomenet Window Dressing inför kvartalsskiftena. Studien bygger på analys av en tredagars långt event-fönster inför kvartalsskiftena mellan år 1996 och 2005 på den svenska aktiemarknaden. Window Dressing uppstår i prestationsbaserade sammanhang och är mest känd när börsföretag dagarna före sina finansiella kvartalsrapporter ror i land ytterligare affärstransaktioner i syfte att dra fördel av sista stundens nyupptäckta affärsmöjligheter. På samma sätt är det antaget att fonderna agerar, inom den egna strategins ram, genom aktiva köp och säljtransaktioner dagarna inför sina kvartalsvisa innehavsredovisningar, baserad på nyupptäckta möjligheter från exempelvis momentumeffekter. Fenomenet får sin acceptans från den betydande konkurrensen på fondmarknaden där fonderna tävlar om att uppvisa skicklighet i värdeskapande.

A field experiment was carried out in 2006 to investigate the effects of deep rotary cultivation on sugarbeet growth. The background to the experiment was a 2005 study showing potentially higher yield, higher cleanness and higher sugar content when primary tillage was carried out to 35 cm depth with a rotary cultivator. On four field sites in Skåne (L:a Isie, Ädelholm, Stävie and Vragerup), five different treatments were compared: mouldboard ploughing in the autumn to 20 cm; mouldboard ploughing in the autumn to 20 cm + rotary cultivation in the spring to 35 cm; rotary cultivation in the autumn to 35 cm; rotary cultivation in the spring to 35 cm; and mouldboard ploughing in the spring to 20 cm. The rotary cultivator used in the treatments is manufactured by a Dutch company, Imants. The implement cultivates the soil with spade tines fitted on arms that are mounted on a horizontal rotating PTO-driven axle. Beet plants were inspected and yield determined in the experiment, and three soil parameters were examined: penetration resistance, water infiltration and infiltration of blue dye. Root shape was also examined. The site at Stävie was not harvested due to poor beet establishment. At the other sites, the highest yield was found when the soil was rotary-cultivated in the autumn.

In the year 1783 a fissure eruption from Laki in the southern part of Iceland produced a large amount of volcanic gases during a period of eight months. The volcanic gases and aerosols spread across the northern hem sphere due to ideal weather conditions and had a substantial impact on the environment, human health and also climate effects. This, so called dry fog, caused severe health problems, which led to death casualties, killing animals, crops and other vegetation. The consequence was a widespread famine which was aggravated by a hard and long winter in 1783/84. Analysis shows that the Icelandic volcanoes are the primary risk to produce dry fog that can affect Sweden.

Inom kunskapsbaserade yrken är det viktigt att rekrytera kompetent personal. Med hjälp av employer branding ökar möjligheten för företag att stärka sin attraktionskraft mot framtida potentiell arbetskraft. Syftet med denna uppsats är att undersöka samt att jämföra hur Deloitte, KPMG, Öhrlings PricewaterhouseCoopers samt Ernst & Young marknadsför sig som arbetsgivare mot Uppsalas ekonomistudenter. Fokus ligger på hur företagens frontpersoner, samt de evenemang företagen genomför, påverkar företagens attraktionskraft. Utifrån employer branding-teorier och med hjälp av intervjuer med studentkoordinatorerna på de undersökta företagen samt en undersökning av företagens evenemang har slutsatser dragits kring hur dessa faktorer påverkar hur attraktivt ett företag, enligt Universums Företagsbarometer, är hos ekonomistudenter på Uppsala universitet.

Sveriges Radio stores their data in large archives which makes it hard to retrieve specific information. The sheer size of the archives makes retrieving information about a specific event difficult and causes a big problem. To solve this problem a more consistent use of metadata is needed. This resulted in an investigation about metadata and keyword genera-tion.The appointed task was to automatically generate keywords from transcribed radio shows. This included an investigation of which systems and algorithms that can be used to generate keywords, based on previous works.

Since events of September 11 and the subsequent conflicts surrounding the event, the war against terrorism has been constantly present. It has been used several methods and strategies to address these threats, including a method current in use, the targeting method. The method refers to use few but precise attacks to knock out key functions within these organizations, mostly individuals in the higher command and control structures within these organizations. The effectiveness of the method has been put in question when the majority of the terrorist organizations continue their strife, in some cases even increasing its intensity. The purpose of this study is to investigate which role the higher command plays in these organizations ability to wage war.