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2094 Uppsatser om Soil microorganism activity - Sida 37 av 140

Undersökning av självspridning av contortatallen i norra Sverige

Over the past 40 years 600 000 ha of lodgepole pine (Pinus contorta ssp. latifolia (Engelm.) Critchf.) has been planted in Sweden (280 000 ha on SCA's forest land alone which represents about 15% of the company's total forest land area). In the early 70's SCA situated a number of experimental stands in order to investigate different aspects of the exotic tree, primarily growth rate. To be able to compare the two species plots with scots pine (Pinus sylvestris L.), this species was also planted at the same time and under the same conditions. A number of questions should always be raised when exotic species are introduced in an ecosystem. Invasiveness, the pathogen situation and purely ethical issues should be discussed.

Kokosvatten och återhämtning/ vätskebalans efter fysisk träning - En systematisk översiktsartikel

Sahlgrenska Academyat University of GothenburgDepartment of Internal Medicine and Clinical NutritionAbstractTitle: Coconut water and recovery/water-electrolyte balance after physicalexcercise ? A systematic overviewAuthor: Irene Eriksson and Alexandra ÖquistSupervisor: Henriette PhilipsonExaminer: Frode SlindeProgramme: Dietician study programme, 180/240 ECTSType of paper: Examination paper, 15 hpDate: April 09, 2014Background: During physical exercise, it is common with dehydration, which affectsperformance negatively. To restore the fluid balance it is optimal to drink fluids containingsalt and carbohydrates. In theory, coconut water should be a good recovery drink because oftheir nutrient content.Objective: To evaluate the scientific evidence available, to investigate whether coconut wateris better than water or sports drinks for rehydration after physical exercise.Search strategy: PubMed, Scopus and Cochrane Library have been used in the literarysearch. Keywords used were recovery, fluid balance, fluid therapy, water-electrolyte balance,rehydration, dehydration, hydration, exercise, physical activity, resistance training, activity,sports, training, coconut water in varying combinations, in order to cover as wide area aspossible.

BIODIVERSITETS P?VERKAN P? M?NGDEN ORGANISKT MATERIAL I ALSUMPSKOG: En fallstudie i fyra alsumpskogar p? svenska v?stkusten

Globally, coastal ecosystems like mangrove forests, sea grass meadows and salt marshes are well known for their ability to capture and store atmospheric carbon effectively. In Sweden, there is still limited knowledge about local coastal ecosystems with similar functions, with alder swamp forests being an interesting example. Therefore, this study aimed to increase knowledge of the factors that can contribute to the potential carbon sequestering ability of alder swamps. Vegetation data and sediment samples were collected from a total of 37 sampling plots across four alder swamps in Bohusl?n on the Swedish west coast.

Att levandegöra historia : En undersökning om att använda Stockholms Stadsmuseums historia i historieundervisningen

The purpose of this paper has been to shed light on the ways the history represented at the City Museum of Stockholm can be used in education at the Gymnasia level. I have made use of the following set of questions to attain this purpose: 1) How is the City Museum's activity vis-á-vis the gymnasia organized and what is the purpose of this activity? 2) What positive results do the interviewees see in the collaboration between the schools and the Museum? 3) Why did the teachers represented in this paper choose to make use of the Museum in their education? The bulk of the study is based upon three interviews with the First Curator at the City Museum of Stockholm and two teachers, from Viola Gymnasiet and Skogsgårds Gymnasiet respectively. My method is qualitative and interpretative with hermeneutic features.In my interpretation of the source material I have made use of historian Klas-Göran Karlsson's classifications regarding the needs for various forms of history, use of history, users and functions of results. In this way I have been able to establish how the Museum and the teachers represented in the study make use of the history that is represented at the Museum.

Bremsningens effekter hos häst : utvärderat med hjälp av termografi, hormonanalyser och hematologi

Twitching is frequently used in horse management because of its sedating and pain-relieving effects. In this study, the effects on the horse?s nervous system by twitching were investigated by thermography of the skin temperature. The temperature is regulated by the sympathetic nervous system through postganglionic sfincters at the capillaries of the skin. The effects on the endocrine activity have also been studied by the measuring of ACTH and cortisol in blood plasma.

Diabetes hos hund : utfodring, motion och vikt som möjliga predisponerande faktorer

This is a study of some risk factors for Diabetes Mellitus (DM) in dogs. As a pilot study it is meant to give information to be used in a planned later, larger and better controlled study. The present study hypothesized that suboptimal feeding (high percentage of homemade and table foods), lack of activity and overweight contribute to the risk of DM. Twenty consecutive dogs diagnosed with DM at the Veterinary University Clinic in Uppsala between 2000 ? 2003 were chosen as the experimental group.

Kreditgivning till lantbruksföretag : en jämförelse mellan Sverige och Danmark

In relation with structure transformation in farm companies with bigger animal population and pressure at the milk price, the farmers in both countries have to invest more money in the company to endure. This had conduct what more owners had seen grown requirements to invest in bigger population barns. The investment is necessary to retain stability in the economy for the companies, at that time when the profitability for small production barns decrease. This essay carries out through a case, there the activities main part are milk production. The present operation consists of 82 milk cows in long stall with a yield on 10 500 kg ECM. The idea is that the company should increase the activity to 180 cows.

Förebyggande effekter av fysisk aktivitet på depression : ? en litteraturstudie

Objective: To study the evidence on physical activity (PA) as an effective preventive strategy for depression.Methods: A search of electronic databases was performed for articles between 2007 and 2012, both original research and review articles, concerning the link between PA and depression on children, youth and adults. Three reviews, five longitudinal and two cross sectional studies were included.Results:  PA reduced the likelihood of depression in many studies and a sedentary or inactive lifestyle increased the risks for mental health symptoms such as depression. One study showed that low PA in childhood increased the odds of depression as an adult and other studies on teenagers saw a connection and mediation between PA and self-esteem whereas physical fitness showed no mediating effect. Many of the studies and reviews point out the insecurity regarding the dose-response association and the difficulties in defining causality.Conclusion: PA might have a preventive effect on depression. Some evidence exist to support that PA in childhood prevents depression in adults.

Karlskrona stadsbibliotek 1906-1959 ? En bit av ett biblioteks historia

This master?s thesis will try to describe the beginning and development towards a modern public library of the town library in Karlskrona between 1906 and 1959. The specific years refers to the year the library was established and the year it moved to the new library building in the centre of Karlskrona. The aim of the thesis has been to do this historical description and to look at the course from the perspective of the national policies and development for the Swedish modern public library. The thesis is based mainly on reports of the proceedings of the public library and other biographical documents and literature, which has been found in two local archives.

Betydelsen av ämnet idrott och hälsa för att aktivera ungdomar på fritiden: en förebyggande åtgärd mot ohälsa

A large problem in our society is the diseases that inactivity brings to the population. The lifestyle you have in adolescence is often the same that you have in adulthood. Because of this, prevention should start in youth. The aim of this study was to investigate the experience that youths have of physical education and it?s influence in their spare-time activities.

Val av tidpunkt för markberedning vid naturlig föryngring under skärm av Pinus sylvestris i Svealand : Timing of scarification when using natural regeneration in seed tree stands of Pinus sylvestris in Central Sweden

This thesis is built on a field study that was carried out in two seed-tree stands near by Götbrunna in Uppland, Sweden. The aim was to examine if scarification carried out in spring time could generate a more dense seedling establishment when using natural generation, than scarification carried out in autumn. It was also investigated whether there were differences in mortality the first season between the two plot-types. Plots were established block-wise with 50 blocks (pairs) on each site. The spring scarification was made with a hoe during 22-23 of April.

Pilotstudie av en ny metod för mätning avendotoxinaktiviteten i blodet hos tikar med pyometra

Förhöjda halter av endotoxin i blodet förekommer ofta vid sjukdomen pyometra hos tik och kan orsaka många av de allmänna symtom som ses vid sjukdomen. Endotoxin Activity Assay (EAA) är en ny, snabb metod för mätning av endotoxinaktivitet i helblod. EAA-metoden är anpassad för humanpatienter, men har testats i forskningsstudier och visats fungera även för hundar och efter viss modifiering också för hästar. Två olika apparaturer från finns att tillgå för EAA (från Spectral Diagnostics Incorporated). Den apparatur som utvärderas i den här studien har aldrig tidigare testats på djurslaget hund.

Elastiska bibliotek : en undersökning av två folkbiblioteks formbarhet och gränser med hjälp av begreppet elasticitet

The purpose of this Master thesis is to examine whether the term elasticity is relevant and functional to apply to public library organisations. Another aim of the thesis is to relate the term elasticity to public library organisations in a network society. Sociologist Manuel Castells provide the theoretical framework on the network society. Three investigations (meant to complement each other) in two Swedish public libraries seek to give answers to these questions.To be able to examine which areas of public library activity are elastic, I make a rough definition of what public library organisations consist of ? nine activity fields are identified using IFLA?s guidelines in combination with Swedish law of public libraries.

Motionsvanor bland gymnasieflickor - En enkätstudie om motionsvanor samt faktorer som bidrar till regelbunden motion

Individuals of today are living in a community that encourages an inactive life. For many individuals exercise is an important part in their life and can be a health factor and contribute to the joy of living. Some environments in the individuals? everyday life are of supportive character. These supportive environments can make it easier for the individual to make healthier choices.

Personligheter hos mjölkkor

Research where personality in animals is studied is becoming more and more common. In this area there are different concepts like behavioural syndrome and animal personality and they usually talk about consistency in behaviour over time and situations. This consistent individual behaviour can be used as an indicator of how individuals can handle and adjust to new situations in the environment. Because of this, personality studies in animals are very important in animal welfare. In this study personality in dairy cattle in lose housing were studied.

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