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7860 Uppsatser om Density functional theory - Sida 5 av 524

Minskad trädtillväxt under Lilla sitiden? : En dendroklimatologisk jämförelse mellan nutid och 1600-talet invid trädgränsen i norra Skandinavien

During the period called Little Ice Age (1400 ~ 1900) the climate of northern Europe was in an annual year-basis overall colder than it was before and after that period. The numbers of short, cold and rainy summers and long, bitter-cold winters where often repetitive under the approximately 500-years the period lasted. In Scandinavia, the coldest time during this period is estimated to have started around the end of the 16th century and lasted to the beginning of the 18th century. Trees growing at the tree-line are limited by temperature for their annual growth and hence showing differences of growth during changes in the climate,  a method called dendroclimatology. The variations of growth can be read in the tree-rings either by analyze the width of the ring or by look into the density of the wood and is used to reconstruct past climates.

Mjölkprotein för starka ben. En systematisk översiktsartikel.

Bakgrund: Osteoporos är en skelettsjukdom som ökar risken för frakturer. Sjukdomen i sig ärasymtomatisk men frakturerna som uppkommer leder till morbiditet och ökad mortalitet. ISverige beräknas en tredjedel av kvinnorna i åldrarna 70-79 år ha osteoporos i höften ochförekomsten förväntas öka i och med att Sverige får en allt äldre befolkning. En strategi föratt minska risken för frakturer är att öka bentätheten. På senare år har det gjorts flera studiersom undersökt om komjölksprotein kan öka bentätheten.Syfte: Att undersöka om intag av komjölksprotein påverkar benremodelleringen och/eller gerökad bentäthet hos unga människor, vilket skulle kunna leda till ett högre peak bone mass.Sökväg: Sökningar i PubMed och Scopus efter originalartiklar utfördes under april 2011.Sökord som användes var ?Milk AND bone mass/density?, ?Milk protein AND bonemass/density?, ?Milk basic protein AND bone mass/density?.Urvalskriterier: Originalartiklar på svenska/engelska som undersökt effekten av intag avmjölkprotein på bentätheten med hjälp av Dual energy X-ray absorbtiometry (DXA), samt påbenremodelleringen med hjälp av biomarkörer inkluderades.

Fisk- och fågelpredations påverkan på den bentiska makroevertebratfaunans sammansättning under tidig vår i Tåkern

Predation is one of many factors that form the structure of the macroinvertebrate community in lakes, wetlands and watercourses. Earlier studies lack an examination concerning how fish- and waterfowl predation affect macroinvertebrates during shorter periods in the spring. I performed an exclosure study in the shallow eutrophic Lake Tåkern which is located in the western part of Östergötland County, Sweden. The experiment was performed during a three week period (1-21 April 2012) when the water temperature was low and the density of migrating diving ducks was high. The experimental cages used included three out of four different treatments; general predation (open cages), bird exclusion (net with mesh size 90*45mm) and no predation (net with mesh size 1*1mm).

Influence of the habitat on the potential for cannibalism and population dynamics in stream-dwelling European grayling (Thymallus thymallus L.)

Cannibalism can have major influence on fish population dynamics. A prerequisite for cannibalism is that the cannibal and the potential victim meet, and besides density effects, the encounter rate between cannibals and their victims is therefore also largely dependent on habitat use and habitat heterogeneity. In this study I quantified and compared the potential for cannibalism in stream-dwelling European grayling populations in three rivers in Jämtland by means of habitat classifications. I also analyzed population dynamic consequences of varying the potential for cannibalism in terms of intensity, using a physiological structured population model. Findings based on habitat characteristics were that the potential for cannibalism is in general not favourable in these types of streams.

Kartläggning av tvärfunktionella verksamhetsbehov för framtida utveckling av OAS

The management of information is one of the key aspects within a successful andefficient product development process, particularly regarding complex products.Scania CV AB is at the moment developing a new IT-system, OAS, which aims tomanage the company?s product data. With this as a background, the purpose of thismaster thesis is to identify the cross-functional user needs within Scania?s organizationconcerning product data and the management around it.To fulfill the purpose, an empirical study consisting of 40 personal interviews with 50representatives from different functions within Scania?s organization was carriedthrough. The empirical data was then analyzed focusing on identifying thecross-functional needs and issues.The study points out that there is a big potential regarding improvement among themanagement of product data.

Föräldraskap och neuropsykiatriskt funktionshinder : upplevelse och påverkan av diagnos

The aim in the study is to search for a deeper understanding of how parents experience a neurological diagnose of the child and how this affects the parenthood. Parenthood was seen in a systemtheoretical perspective as a social construction. The narrative method was used in two lifestory parentinterviews. The analysis was made from parenthood. The result formed stories about parenthood with children having neuropsyciatric functional disability who even came to be a woman?s struggle.

Deadwood in piles or distributed : does it make any difference to saproxylic beetles?

Piles of deadwood are often retained in forests after management to support the biodiversity ofsaproxylic organisms which depend on deadwood to survive. Any knowledge about the crucial role ofpiles as suitable habitat of saproxylic organisms compared to single distributed deadwood objects thatare around the piles would help conservation actors to motivate more forest owners to supportsaproxylic organisms during their management. Therefore to give facts to this the saproxylic fauna ofdifferent pile positions (up and low) was studied and compared to distributed deadwood samplesaround each pile. Our study was focused on saproxylic beetles. Some other parameters such asdiameter, deadwood volume, pile volume and decay stage were assessed to define any effect.

Modellering och styrning av flis till en sulfatkokare

At the Skoghall pappermill, sulphatepaper pulp is produced in a continuous digester originally from 1969. To be able to maintain a high level of production there is a need for a process with few disturbances. Variations in how well the wooden chips are packed in the digester is one form of disturbance. Today there are no available measurements on how well the chips are packed. Instead this is regarded as being constant.

Bachelor thesis Re : bottle

There is a new beverage container on the market, a bottle made out of pure aluminum as a replacement for the traditional container made out of glass. This new container has the potential to reduce both cost and pollution during transportation, the lighter and stronger construction has every advantage compared to the old one in glass. The new container has every possibility to make it on the market. Some of the biggest brands within the soft drink market already use these bottles in countries without any recycling demands like: Coca-Cola, Heineken and Pepsi. The only thing stopping these brands from the Swedish market is the lack of a functional return system, there is only one company that uses the bottle in Sweden today and they take care of their own used bottles.

Effekten av nutritionsbehandling på funktionell återhämtning efter stroke, en systematisk översiktsartikel

Sahlgrenska Academy at University of GothenburgDepartment of Clinical NutritionAbstractTitle: The effect of nutritional treatment on functional recovery after stroke, a systematic reviewAuthor: Ingrid Blankenau and Amanda LindbladSupervisor: AnneMarie GrönbergExaminer: Anna WinkvistProgramme: Dietician study programme, 180/240 ECTS Type of paper: Examination paper, 15 hpDate: April 13, 2011Background: Every year 30 000 people in Sweden suffer from stroke. This costs society about twelve billion SEK. Many stroke survivors experience functional impairment which may lead to difficulties for them to meet their nutritional needs. Nutritional treatment is important in the recovery process after stroke as malnutrition increases the risk of complications.Objective: To investigate the possible effect of nutritional treatment on functional recovery after stroke.Search strategy: The search was conducted in the databases PubMed, Scopus and Cochrane by using the English keywords stroke, nutrition, rehabilitation, functional outcome, recovery, acute stroke, ischemic stroke, ischemic acute stroke, nutrition therapy, brain hemorrhage, functional recovery and nutritional rehabilitation.Selection criteria: Studies published before 2001 conducted on human subjects who suffer from stroke where they measured functional capacity and did a nutritional intervention, written in English, Swedish or Norwegian, and did not have to be requested from the library.Data collection and analysis: A systematic search was performed in PubMed. Studies which had an interesting heading were examined and abstract read.

Health added-value food : the Swedish retail market

Diet and lifestyle are closely interrelated and believed to have a significant influence on four major public diseases - cardiovascular disease, cancer, hypertension and obesity, but also affects functional deficiencies like gluten- and lactose intolerance. Health added-value foods are thought to reduce health-related risks or delay the onset of these major diseases. Therefore, interest among scientists, researchers and the public in general has been growing remarkably over the last decade regarding these special foods. The Swedish market seems to be a good target for health added-values food. However, as there are many risks and cost factors involved for companies to enter the market or invest in R&D, it is important to take a step back and analyze the current market situation.

Inkludering ? : För elever med särskilda behov och funktionshinder, ur ett historiskt perspektiv

This present study is a result of a research that I made . My purpose is to find out how the debate about inclusion looked like back in the history. My research was about the view we had absolut inclusion in the history, I also made some interviewes among teachers and students in the schools of today. I wanted to se their views about inclusion today and I wanted to know their opinions about inclusion. Did the students and the teachers have prejudice against other students with functional disabilities as Down syndrom and blindness? What was their thoughts about inclusion of students with differents functional disabilities?One more task I had with this study I made was to raise another debate about inclusion .! Keywords: Inclusion and funtional disabilities.

Att vara anhörig eller anhörigvårdare

The purpose of this essay is to describe and analyze experiences of how the daily rounds and a persons role is changing when you go from being a family member to being a family member as well as being a kinship carer.Essential questions at issue was:- Which feelings are associated to the roll as kinship carer?- What are the motivations for the relative/family member to become a kinship carer?- What is the change of the role like before and after the disease.Six persons have been interviewed on the subject and symbolic interactionism and role theory has been our theoretical perspective. The essay has been related to the ideas of Meads on social interaction and to Goffmans theatre theorem.The result of the essay showed that feelings and motivations as regards to the daily rounds and the role of the kinship carer were individual, where similarities and differences occurred. When ones partner, parent or child got a disease/functional disability it generated in some changes regarding their daily rounds and it led to altering of roles. To assume a role was a natural result and often happened when a relative/family member got a disease or an injury..

Asperger syndrom-en studie av två aspergerenheter

The objective of this project is to study how two asperger units, one at a junior school and one at a senior-level school are carrying at their work. I have interviewed one pedagouge at each unit to find out how they organize the education at the units and how they work to develop the students' social skills based on the students' functional handicap. The interviews showed that the following factors are providing the foundation for the pedagouges' work with the students: knowledge of the Asperger syndrome and the symptoms shown by each individual, the pedagouges being explicit and well structured as a professional and as adult combined with him/her being humble and showing respect towards the students and self reflection.Keywords: Asperger syndrome, functional handicap, social interaction, attitude..

Ritualen och dess potentiella användning i organisationer :

The essay's aim is to create an understanding for the act; ritual, and the functions or possible functions in an organisation. Many of the functions attribute to rituals lie in the ritual's double function. A ritual can function both as a practical/functional and a symbolic act. The functionality in a ritual doing is not depending of the "symbolic meaning". The functional value exists there always.

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