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2094 Uppsatser om Soil microorganism activity - Sida 35 av 140
Numerisk simulering av jordtryck mot rörbro ? Med tillämpning av programmet PLAXIS
This thesis deals with numerical simulation of earth pressure against tubular bridges in the software Plaxis. Plaxis is a FEM (Finite Element Method) software based on numerical calculations for which approximate solutions are developed through an iterative process. The program is specifically designed for soil and rock mechanical tests, such as voltage and deformation calculations in soil.The Royal Institute of Technology conducted in 2005, field tests on tubular bridges of corrugated steel, which was part of Ersa Bayoglu Fleners PhD (Bayoglu Flener, 2009). She studied how two different tubular bridges deformed during installation and filling. Tests and measurements were made during filling.
Att skapa ökad hälsa och välfärd : Rehabrådgivarnas påverkan på individens hälsa och livskvalitet i ett governmentalityperspektiv
From a view of health strategies and techniques this thesis wants to throw a light on how the individual in its"health thinking"is governed. A thinking that, according to the author, can lead to a new way of governing as in municipal activity, an activity whose focus is on health and ill-health. The study is done whit a theoretical approach of power, with qualitative interviews as method and analysed from a perspective of Governmentality. The object for the study is Socsam and Rehabrådgivarna in Finspång. Socsam is a local project, and their main task is to create cooperation between health- and medical services, social services and social insurance.
The effect of training on spontaneous blink rate in dogs
The spontaneous blink rate is found to be a non-invasive but functional, reliable and useful way to monitor central dopaminergic activity. Dopamine is associated with a range of functions such as reward, motivation and learning. It plays an important role in goal-directed behavior and in maintaining a behavior once a task is learned. As far as the author knows, there are today no publications that discuss the topic regarding the possible link between training and spontaneous blink rate in dogs. Therefore, eight privately owned dogs were included in this study to determine if there was a significant difference in the spontaneous blink rate before and after the process of learning a task.
Vegetationsutveckling och mänsklig aktivitet under äldre Stenålder vid Döudden, Arjeplog kommun :
The landscape in the interior of Norrland has undergone dramatic changes since the deglaciation as a consequence of faultings, earthquakes and tilting of the landscape westwards. Archaeological investigations along former shorelines by the use of models of isostatic land uplift, have revealed many Mesolitic settlements in northern Sweden. Döudden, in the county of Arjeplog, has been investigated by archaeologists that identified settlements from 5200 BC. The objective of this study was to analyse the history of the vegetation and if the vegetation showed traces of human activity during early Holocene, by pollen analysis. The results indicate that the area had an established vegetation c.
Föräldrarnas uppfattning av barnets vård vid leukemi
AimThe specific questions in the theoretic part were:What is contained in the terms "balance and balance skill" and how can this skill be measured?The specific questions in the empirical part were:How does balance skill in different age categories of children correlate with biological and physiological parameters such as age, gender, body height, weight and level of physical activity?MethodsLiterature search based on books and scientific papers related to the questions posed above. Selection was made at libraries and on?line through "Pubmed". Specific search words were used.
Tid i all oändlighet och förgänglighet. En studie av tidsanvändningen i Sverige sedan 1980-talet
This master thesis in economics discusses the time use of today as well as the observed trends in time use over the last 20 years in Sweden. This is done by analysing time-use and consumption data at the microeconomic level, i.e. by explaining individual behaviour given the economic assumption of a rational behaviour. We reach the conclusion that the value of time is an important explanatory variable concerning the rationality in that time is used differently by different individuals and in the changed use of time. Furthermore, other variables such as social norms and the process benefit of a certain activity, i.e.
Ekologisk slaktgrisproduktion i Sverige :
This literature review describes organic pig production in Sweden, its advantages and disadvantages, but also how its problems can be reduced or solved. Organic pigs have the possibility to a more natural behaviour than conventional pigs. With outdoor pigs comes problems, especially during wintertime, concerning water and feed supply, thermal environment and supervision. Parasites and leakage of plant nutrients are other difficulties that comes with outdoor pigs. All problems and difficulties can be reduced or put right through correct management.
Omstruktureringars betydelse för organisatoriska lärprocesser : Ett kunskapsperspektiv på att dela en verksamhet och köpa verksamhetsnära it-tjäsnter
The thesis aims to understand how learning processes are affected when an organization split into two separate organizations. The study is designed as a single case, covering a new government agency?s takeover of a core activity from another agency and the use of a purchase-provider split between the agencies, providing the new agency with IT-services. The findings revealed a difference in productive system and knowledge types between core- and IT-activities. The core activity was found to be dominated by explicit knowledge while the IT-activity seemed to be dominated by a mix of explicit and tacit knowledge.
Fosforgödslingseffektivitet i långliggande bördighetsförsök
Rapid population growth and the fact that phosphorous is a limited resource implies that the question regarding an efficient use of phosphorus is of great importance, and consequently,that the phosphorous use efficiency should be as high as possible. The view on phosphorous use efficiency, and how this is calculated, has varied over time. This has had great implications on what type of research that has been conducted, which have resulted in an
inconsistency between the academic?s view on the subject and recommendations received by farmers. The purpose of this paper is to calculate the phosphorus use efficiency in the Swedish long term fertility experiments.
Resultat av tjugofem års mätningar av Cs-137-halter i älg i Uppsala län
At the end of April 1986 reactor number 4 of the nuclear power plant at Chernobyl explod-ed and large amounts of radioactive particles were then released into the atmosphere due to both the explosion as well as the consecutive fire of the graphite core. A cloud of radioac-tivity was spread over the northern hemisphere, including Sweden, due to the prevailing wind directions. The radioactive particles were washed out from the cloud by rain and snowfall in some areas of Sweden and deposited on the ground. The deposited radionu-clides, primarily cesium and iodine isotopes, were later absorbed into the soil and taken up by the roots of the plants. Some of these radionuclides, like 137Cs, still persist in some of the terrestrial ecosystems at relatively high concentrations which lead to contamination of the meat of moose, roe deer and wild boar even today.The two municipalities Heby and Uppsala, in the eastern part of central Sweden, experi-enced a relatively large deposition of 137Cs which resulted in high levels of 137Cs in moose and other game.
Bildningsrummet. Om bildningsbegreppet i folkbiblioteksdiskursen.
The Swedish concept of bildning, related to the German Bildung, finding its correspondence in English in refinement, formation and culture, is an important, though traditional rather than modern concept in cultural policy and sphere. The concept connected to the activity of the public library is relevant, as the library uses the word as a description of parts of its work. The meaning of the concept can easily be seen to be complex as well as disputed, borders on and is related to other concepts. The paper discusses different meanings to the concept according to different Swedish authors, as well as the connection of the concept to related ones. The varieties and differences are expressed as differences in discourse.
Spridning av släckvattenpartiklar : En studie på spridning av partiklar genererade från brand
During a fire large amounts of particles and unhealthy agents occur. Polyaromatic hydrocarbons (PAH) and toxic metals are examples among many others. These agents have a capacity to bond to particles and when the fire is extinguished, the particles can be transferred with the extinguish water into the soil and to the groundwater.Recent studies in particles have been conducted. A study by Ulrika Iverfelt (2014) reviled that the particles from a fire contained large amounts of both PAH and metals, which is consistent with earlier analyses. Her column experiments with particles in the size ? 11 microns and ?100 microns in silica sand, reviled that the larger particles was immobilized because the transportation was influenced by sieving or physiochemical particle and surface interactions.The transport of the particles in soil and groundwater is regulated by two main mechanisms: physiochemical surface interactions and straining.
Spelet om spelandet : En medieetnografisk studie av barns dataspelande på en fritidsklubb
AbstractTitle: The game of playing: A media ethnographic study of children playing videogames on a Swedish after school recreation centre. Spelet om spelandet: En medieetnografisk studie av barns dataspelande på en fritidsklubb.Number of pages: 46Author: Peter BrandbergTutor: Amelie HössjerPeriod: Spring term 2008Course: Media and Communication studies DUniversity: Division of Media and Communication, Department of Information Science, Uppsala UniversityPurpose/Aim: The aim with this study is to describe how children play video games in an everyday context. In this study this context consists of a Swedish after school recreation centre. By combining three different aspects on the activity this study tries to understand how both the video game and the social and cultural context in which the activity takes place in influences it. This by taking one analyse of the specific game that the children played at the time of the study and how the overall environment is structured into account.
Hund lämnad ensam i bil :
This project was initiated by a desire to improve our knowledge about animal welfare. It is a part of a series of projects involving the way dogs are kept in today?s society.
The aim of this project was to investigate the dog?s behaviour when left alone in a parked car.
En för alla och alla för en : En jämförande studie mellan traditionellt grupparbete och kooperativt lärande
This is a comparative study between traditional group work and cooperative learning among 9 graders at a Swedish high school. The classes did an assignment that involved translating and then both students and teachers answered a questionnaire. An example of how profitable cooperative learning is is the fact that the speech activity was more equal in the cooperative groups. All the students in the cooperative groups had to contribute to the assignment in order to fulfill the assignment. The reason for higher speech activity is the structure of cooperative learning, which involves roles suited for the assignment.