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997 Uppsatser om Structural soil - Sida 57 av 67

Att vara förälder till ett barn med medfött hjärtfel : en litteraturstudie

Introduction : Structural cardiac malformations affects 0.8-1% of children born worldwide, in Sweden 800-1000 children per year. Most children with congenital heart disease and their families will have frequent and lifelong contact with highly specialized care. Awareness of the parents experience is crucial in order to improve the nursing care. These experiences will be illustrated using a theoretical model of family-based nursing. Aim: The aim of this study was to describe experiences of being a parent to a child with a congenital heart disease.

Survey of Fusarium species on yellow onion (Allium cepa) on Öland

It has been observed by both onion producers and a plant protection advisor on Öland (an island off the east coast of Sweden) that basal rot is the largest contributory factor to reduced onion quality and yield. Basal rot is mainly caused by species of Fusarium fungi. The aim of this study was to: a) investigate which species of Fusarium that can be found in onion produced on Öland, b) describe the symptoms caused by the different Fusarium fungi found and c) explore, through interviews with the onion producers on Öland, the mechanisms that may be involved in the observed increase in basal rot.Onion bulbs (Allium cepa) were sampled on two occasions. In total 181 onions from 11 different fields were analysed. In addition, eight onion producers were interviewed.

Beräkningsmall för väggskivor enligt Eurokoder

The regulatory framework for constructional calculations in Sweden did expire In January the 1.st, 2011.Since then the constructional regulatory that originally were composed by Boverket (BKR) has been replaced by new common range (Eurocodes) for the entire European Union. This transition has led to changes in existing rules and standards regarding dimensioning area in Grids and has forced a need for updating to structural Engineers.The new calculation system has caused time-consuming studies of the new rules and a proper understanding of all the advice and regulations for the entire profession.This study has been carried out in cooperation with the firm "Knut Jönson Ingenjörs AB i Stockholm?, that has been affected by this transition as all other consulting firms. The firm has requested for a calculation method of wall beams according to Eurocodes. The study's focus is therefore to clarify the rules and guidelines regarding the design of wall beams according to the new regulation.

Transporttidsmodellering vid provpumpning i heterogen jord : spårämnesförsök i en isälvsavlagring

When protection zones for wells are delineated, it is important to acquire good knowledge about possible travel time from different points in the catchment area to the well. Often, simple analytical methods are used for estimating travel times and the assumption is made that the hydraulic conductivity is relatively homogenous within the aquifer. Nevertheless, many aquifers are strongly heterogeneous which may lead to differences between estimates and actual travel times. As a part of the process to develop improved methods for delineating protection zones for groundwater supply wells, a tracer experiment was performed in a glaciofluvial esker formation in Järlåsa. On the basis of the experiment, a numerical flow model was created for the test site.The purpose of this master?s thesis was to apply the flow model to an aquifer where the hydraulic conductivity shows great variability and should be described by a stochastic distribution.

XRF-analys av förorenad mark : undersökning av felkällor och lämplig provbearbetning

X-ray fluorescence (XRF) detection of heavy metals is a cost- and time-effective method for investigation of polluted areas. Compared to laboratory analysis, XRF analysis is limited by high detection limits and uncertainties in some situations. Preparation of samples is known to affect the results of measurements.The purpose of this thesis is to bring a deeper understanding of how different factors affect the results of XRF-analysis. A large number of measurements have been made with the instruments Niton XLt 700 and Niton Xli 700. Results from measurements of lead, zinc and copper have been analysed.This study has shown that a greater moisture content will give a lower measured concentration for the same sample.

?Vad spelar det för roll då om inte alla syns på bild?? : En studie av representation i förskolans miljö

The aim of this study is, from a norm-critical approach, to find, investigate and analyse human representation in the visual culture of one preschool in order to understand if the children enrolled are represented or not. The research questions are: In what ways is there imagery of human representations in images and materials designed for play? What skin-colors and origins are dominant in the data collected?We carried out a qualitative study in the form of visual ethnography. This method allowed us to use a combination of different data collection tools such as photography and ethnographic field notes to collect our data. The photographs we took of images and material used for play, was then analysed through semiotic picture analysis.

Att organisera för lärande : En studie av samband mellan gruppens ålderssammansättning och förutsättningar för barns lärande i förskolan

Syftet med denna studie är att undersöka om det finns några mönster och samband i hur förskolepedagoger upplever förutsättningar för barns lärande beroende på ålderssammansättningen i gruppen. Studien är kvantitativ med webbenkät som metod för insamling av data från pedagoger. Undersökningen omfattar alla förskolor inom en kommun i Värmland, totalt 55 kommunala avdelningar och 144 pedagoger. Följande ålderssammansättningar ingår i studien: åldersindelade grupper, småbarnsavdelningar (1-3), avdelningar för äldre barn (3-5) och syskonavdelningar (1-5).Studien har sin utgångspunkt i interaktionistiska teorier, vilket innebär att förskolans verksamhet studeras utifrån olika samspelade aspekter, faktorer och nivåer. I studien ses förutsättningar för barns lärande i förhållande till förskolans kvalitet, vilken i sin tur tolkas som ett komplext fenomen som skapas i samspel mellan olika faktorer på struktur-, process- och resultatnivåer.

Skogen Brun : ett nedslag i västsvensk skogshistoria

After the last is age there was a long period when there was no shortage of forest for peoples needs. People living in Sweden could use the forest resources at their will. Around 4000 years BC the inhabitants of southern Sweden started to use the agricultural system and people become more stationary. The farms were located together in groups and together they formed a social association, the village. Successively the population grew and in some areas the forest started to become a finite resource.

Genetiska studier på fågelinfluensa :

In the spring of 2006 we had our first outbreak of avian influenza of highly pathogenic H5N1 (HPAI) among wild birds in Sweden. This disease have impact on poultry industries world wide. Sporadically the virus infects other species than birds and we now know it can even cause fatal infection of humans. There are not yet any confirmed cases of transmission of the disease between humans though a suspected case in an Indonesian family is under investigation. If a mutation occurs that changes the pathogenicity and host affinity to humans we are at a risk of a new pandemia, perhaps like the Spanish flu in 1918-1920.

En arena för alla? : En studie om normbrytare på Stockholms stads idrottsplatser

In Stockholm there are currently five women, out of a total of 102 employees, working in public sports arenas. In sports arenas men are numerically superior amongst the workers as well as the visitors. These arenas are in many ways male dominated, masculinized environments. In this essay I investigate the reasons behind the uneven distribution, in terms of gender, among sports arena workers. I do this by interviewing seven female sports arena workers (the five current and two former), and by observing their workplaces.

Intellektuellt kapital : En fallstudie om problematiken i kreditbedömningsprocessen

Bakgrund och problem: Det föreligger en problematik i kreditbedömningsprocessen som berör svårigheten att bedöma ett  bolags värde samt dess återbetalningsförmåga. Vanligtvis värderas organisationer utefter sina finansiella rapporter men eftersom de inte alltid inkluderar immateriella tillgångar i form av intellektuellt kapital skapas en informationsasymmetri. Informationsasymmetrin kan vara en orsak till eventuella felbedömningar av ett företags riskutsatthet och framtida utveckling och således till ett nekande av sökt kredit. Forskare lägger skulden på redovisningssystemet men vi vill lyfta frågan om problemet även kan ligga i kreditbedömningsprocessen.Syfte: Syftet med föreliggande studie är att undersöka hur banker, i rollen som finansiärer, behandlar intellektuellt kapital hos kunskapsintensiva företag vid en kreditbedömning. Avsikten är att beskriva, tolka samt reflektera kring kreditprocessen för att påvisa vilken betydelse det intellektuella kapitalet har för kreditbeslutet.Metod/Empiri: Studien har utförts som en kvalitativ undersökning baserad på intervjuer och praktikfall.

Konceptstudie av drivmodul till bandskotare med hybriddrift

BAE Systems Hägglunds has a long history of producing high performance terrain tracked vehicles (mostly for military applications), and they are now aiming at developing a tracked forwarder with similar techniques.The forwarder will be of series hybrid type where a diesel engine via a generator will power the motors (one for each drive wheel). Thanks to individually controlled motors and the gentle rubber tracks, this forwarder is calculated to have a considerably higher average speed in the terrain and to be more gentle to the soil. The forwarder with a weight of 11 metric tons and a load capacity of 15 metric tons is specified to have an average working speed of 7-10 km/h, a top speed in terrain of 15 km/h and a top speed on roads of 40 km/h.This master?s thesis aims at developing a conceptual design of the forwarder?s drive module which includes electric motor, gear unit, brake and drive wheel.To investigate if the requirements can be fulfilled a study of the dimensioning loading scenarios has been carried out. The resulting needs regarding the torque has been considered in order to determine the required gear ratios for different motor options.

Uptake of 137Cs by fungi and plants due to potassiumfertilization in Heby municipality in response to theChernobyl nuclear accident

The fallout from the Chernobyl nuclear accident resulted in large deposits of caesium, iodineand strontium as well as noble gases in various parts of Sweden. 137Cs has a radioactive halflifeof about 30 years and is therefore one of few radio-fission products remaining inmeasurable quantities in the Swedish soil. Radiocaesium behaves similarly to potassium insoil-plant systems and is easily absorbed by plants. It is important to understand how 137Csbehaves in different ecosystems in order to minimize the risk toward humans.The aim of this study was to determine how potassium fertilization influences radiocaesiumcontent in different forest plants and fungi. Potassium fertilizer was spread once in 1992 withapproximately 200 kg KCl per ha.

Fiskevård och delning av fiske vid lantmäteriförrättningar : Studie av FBL 3 kap 8 §

AbstractThis bachelor thesis was performed at the Royal Institute of Technology in Stockholm on behalf of the Land Survey Authority. The thesis is about fish conservation and division of fishing water at official duty. It is the Land Survey Authority that examines division of fisheries, but before a case can be implemented, certain requirements must be achieved such as FBL 3:8, which prevent divisions that are deleterious for fish conservation. The purpose of this thesis is: to obtain a clearer view how FBL 3:8 should be applied in practice, how the application differs between the offices in central Sweden, and how fish care is regulated at both international and national levels.At an international level, in EU the commercial fishery is regulated through the common fisheries policy (CFP). The fisheries policy consists of a reform that will last for 10 years.

Kina i Afrika : En studie av Kinas afrikapolicy

Since the beginning of the new millennium, China has opened itself to the outside world and in an enormous pace increased its contacts and relationships with other countries. The trigger to these dramatic changes of economic and foreign policies is the insight that China can no longer sustain its rapid economic growth, largely based on industrial production, on energy and raw materials from China alone.Good relations with African countries have been of highest priority in China?s strategy of ?Going global?. The new African policy is based on the two principles of mutual benefit and non-interference in internal affairs ? as opposite to the West?s strategy of structural adjustment programmes (SAP), which include massive interference in internal affairs.

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