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876 Uppsatser om Input hypothesis - Sida 53 av 59
Allergi - en påminnelse om vårt ursprung : en kvantitativ enkätundersökning över förekomsten avallergier bland studenterna på Gymnastik & idrottshögskolan i Stockholm
Aim - To investigate the prevalence of allergies among students at The Swedish School of Sport and Health Sciences (GIH) in Stockholm and relate it to factors that previous research in this area found to influence the risk of developing allergic diseases.- Can Hygiene Hypothesis or more specifically the relationships of family structure, socioeconomic status and the degree of overcrowding explain the existence of allergies among students at GIH?- Can the prevalence of allergies among students at GIH be explained by any of the known relationship for the prevalence of allergic diseases this study has taken into account?Method - Quantitative survey of students at GIH in the fall of 2013.Results - 214 students from The Swedish School of Sport and Health Science participated in the study, with representation from the first - and last - year students of all educational programs. More than twice the proportion of those diagnosed respondents said that their mother smoked during pregnancy or while they were breast-fed compared with the same group of respondents with no allergic diagnosis. The correlation is not statistically significant (p -value: 0.054). The majority of respondents with an allergic diagnosis indicated that their home mopped once a week or more for most of their childhood, while the majority of respondents with no allergic diagnosis stated that their home mopped less often.
Förslag till modell av kemikaliespridning i mark anpassad för användning vid räddningsinsats - Kemspill Mark 4.0
After emergencies involving chemical spills it is of great importance that correct measures are taken with short notice, both for the security of people and in order to minimize future environmental consequences. The RIB-unit at the Swedish Rescue Services Agency initiated this study, the aim of which is to propose changes to the existing chemical transport calculation tool: Chemical Spill 3.4, included in RIB - Integrated Decision Support for Civil Protection, so that it can be used for decision support as well as in preventive work. A rough estimation of chemical transport in the subsurface is considered being of great importance when making decisions during emergency response operations.The proposition presented in this report is a non site specific chemical transport model which is designed to give a rough estimation of NAPL flow in homogenous isotropic soil shortly after an instantaneous release. The model can be used at two levels; both in situations without access to information on subsurface properties, and with more accuracy in situations with knowledge of the included parameters. For that reason the user can choose among predefined alternatives or assign the parameters a numeric value to increase the quality of the model output.
Optisk undersökning av dieselsprayer från en höghastighetsroterande insprutare
There have been changes in Earth?s climate system on both global and regional scale since the pre-industrial era and some of these changes are due to human activities such as the combustion of fossil fuels. This calls for the development of engines with a higher efficiency and less harmful emissions. One interesting concept is the Homogeneous Charge Compression Ignition (HCCI) engine, which has the advantages of potentially low emissions combined with high efficiency. However, HCCI with diesel fuel requires a relatively long fuel/air mixing time to ensure a "homogenous" charge.
Listeria monocytogenes i vakuumförpackad lax :
Listeriosis, which is caused by Listeria monocytogenes, is a rare food borne disease that primarily affects people whose immune system is weakened. These may be elderly people, pregnant women, new-born infants and individuals on immunosuppressive medication. The most common symptoms are meningitis, septikemia and abortion. The mortality is high, on average 20-30 %.
In recent years the number of cases in Sweden has increased.
Är aktiesplit en hit? : En eventstudie på Stockholmsbörsen om aktiesplitar och överavkastning
Syfte: Studien har utrett om aktiesplit genomförda på Stockholmsbörsen under åren 2004-2008 genererat överavkastning och i sådana fall om det har funnits några skillnader i överavkastning beroende på företagens storlek.Teori: Den effektiva marknadshypotesen, framförallt i dess semistarka form, har utgjort en teoretisk referensram för arbetet.Metod: En kvantitativ deduktiv forskningsansats har tillämpats med eventstudiemetodik som grund. Undersökningen behandlar en femårsperiod mellan 2004-2008 där ett urval av 56 stycken splitar mötte uppsatta kriterier. Dessa delades in i tre undergrupper beroende på bolagens kapitalstorlek vid splitgenomförandet. Kursdata för 250 dagar innan spliten och 250 dagar efter har samlats in för berörda bolag med hänsyn till splitdagen. OMXSPI har använts som jämförelseindex.Resultat: Resultatet tillsammans med hypotesprövning visar att överavkastning i samband med aktiesplit har påträffats för hela populationen under mätperioden.
Utökade tilläggsupplysningar vid övergången till IASBs standarder
Studiens syfte är att förklara och analysera hur mycket årsredovisningens tilläggsupplysningar har ökat i omfång, i och med införandet av IASBs standarder i Sverige, samt hur detta påverkar finansanalytiker i sin analys av börsnoterade företag. För att kartlägga hur mycket tilläggsupplysningarna har ökat i omfång har en kvantitativ metod använts. Antalet sidor och antalet noter i 60 börsnoterade företags årsredovisningar har räknats för åren 2002 och 2006 samt även år 2004 för antalet sidor. För att analysera hur finansanalytikerna har påverkats av de utökade tilläggsupplysningarna har en kvalitativ metod valts. Intervjuer har genomförts med sju finansanalytiker på sju stora analysföretag.
Olfactory responses of the parasitic wasp, Trybliographa rapae (Hymenoptera: Figitidae)
Delia flies (Diptera: Anthomyiidae) are economically important pests in several horticultural crops. The control is commonly relying on chemical insecticides, though there are possibilities with biological control from the natural enemies in the field. An important natural enemy is the parasitic wasp, Trybliographa rapae Westwood (Hymenoptera: Figitidae) that lays eggs in the Delia fly larvae. The parasitoid larva and the host larva have a parallel development until the host dies within its puparium and an adult parasitoid emerges.
The aim of this thesis was to understand the attraction to host- and food-associated plant volatiles of T. rapae, in order to enhance the effectiveness of the parasitic wasp as a biological control agent.
Gårdsråd ? en väg mot förbättrad lönsamhet? : en kvalitativ studie i hur lantbruksföretagaren ser på gårdsrådets effekt att påverka företagets resultat.
Ett lantbruksföretags förutsättningar ser lite olika ut beroende av vilken del av världen man väljer att studera. Om vi ser till det svenska lantbruket har det förändrats från en reglerad marknad där kooperations ställning var väldigt stark, för att sedan avregleras och slutligen åter regleras när Sverige blev medlem av den europeiska unionen. Många fick ett klart besked hösten 2007 hur beroende vi är av andra länders skörderesultat. Det har utmynnat i att allt fler ser sig utanför det egna landet för att utbyta erfarenheter och för att få ny input och nya idéer till den egna verksamheten.Gårdsråd innebär att företagaren bildar en samrådsgrupp tillsammans med de rådgivare och/eller andra intressenter kring företaget. Banken kan vara en intressent som är involverad i företaget men kan vara mindre aktiv i gruppen än vad t.ex.
Tillväxt och potentiell sågtimmerkvalitet i gallringsmogna jämförelseplanteringar med Pinus contorta och P. sylvestris :
The Swedish Cellulosa Companiy, SCA, has today 280 000 ha planted with lodgepole pine (Pinus contorta var. latifolia) (?C?) which is equivalent to 14 % of its total forest area. Exotic lodgepole pine has in previous experimental stands shown a superior growth than the native Scots pine (Pinus sylvestris L.) (?S?).But also the comparison could be questioned because stand histories were was unknown and also differences in age between C and S existed.
The movement of the rider?s hand related to the horse?s behaviour and the stride cycle
One way of signalling commands to the horse during riding is through applying tension on the reins to create bit pressure in the horse?s mouth (Terada et al., 2006; Clayton et al., 2011). The skilfulness of the rider in using the hands when applying bit pressure has consequences both for the horse?s performance and welfare (Manfredi et al., 2010). At the trot there are large vertical deviations of the horse?s body which the rider must adjust and adapt to (Terada et al., 2006) and an unsteady hand due to inability to follow the horse?s movement can be a source of discomfort and conflict behaviour in the horse (Heleski et al., 2009).
Effekter på varumärken vid företagsfusioner
Verkliga värden uppges ofta vara relevanta i och med att de avspeglar aktuella händelser, men däremot ifrågasätts deras tillförlitlighet. Framförallt för sådana verkliga värden som kategoriseras inom nivå tre av den värderingshierarki som finns i redovisningsstandarden IFRS 13. Värdering av sådana tillgångar genomförs med avsaknad av marknadsdata från en aktiv marknad. Input till värderingsmodellerna är då ofta företagets egna antaganden och bedömningar av framtida händelser kopplat till tillgången där utfallet vid värderingstidpunkten i högsta grad är osäkert. Det uppkommer då en inneboende osäkerhet över utfallet av de antaganden och bedömningar som görs, en inneboende osäkerhet som även riskerar medföra vinklade värderingar från framställarna av de verkliga värdena.
Interactions between some plant-parasitic nematodes and Rhizoctonia solani in potato fields
The pathogenic fungus Rhizoctonia solani causes major economic losses for potato producers in Sweden. The producers, as well as advisors, have reported possible increases in severity of R. solani when free-living plant parasitic nematodes are present and active. There are several examples in the literature of interactions between pathogens where one, or both species, support or increase the damage made by the other organism. These complexes are important to investigate and to be able to forecast, since even low incidences of fungi or nematodes may result in an interaction of significance.
Miljö- och hälsorisker med konstgräsplaner
In Sweden today many municipalities and sport clubs chooses to build artificial turfs becauseof the increased period of using the turfs during the year and less maintenance requirementsthan for natural grass fields. What could be problematic with artificial turfs is the rubbergranules used as infill material in the turf matt. The rubber granules are often made fromrecycled tires, which may contain for the human health and the environment, harmful substances.This was the reason why the Swedish Chemicals Agency commissioned a statusreport in 2006 which, among other things, concluded that the environmental and health risksassociated with granules made from recycled tiers in artificial turf fields were small, but thatthere could be a local environmental hazard. The purpose and objective of the risk assessmentwas to identify how artificial turf plans granules can affect recipients in the area closeto the pitches and provide input to reduce the spread of metals and substances harmful forboth human health and the surrounding environment. The work was divided into three parts:(1) the construction of artificial turf pitches and their material content, the spread of granulatesoutside the fields and disposal of artificial turf pitches.
Picea mariana ((P. Mill.) B.P.S), P. abies (L.), Pinus contorta (Dougl.) och P. sylvestris (L.) : en jämförelse av produktion och potentiell kvalitet hos försöksbestånd i Jämtlands län
Swedish forests are dominated by just two conifer species Norway spruce and Scotch pine. They are not able to achieve the highest possible production or fulfill industry demands for raw materials. The introduction of exotic conifers can potentially meet these shortcomings and present a relevant solution.
This study was conducted in a block experiment with ten blocks planted in 1987 by SCA in North Sweden. The objective of the block experiment was to study if Black spruce is an appropriate alternative to Lodgepole pine, Norway spruce and Scotch pine on different site classes.
Påsköns stenstatyer, moai : Vilket genus representerar de?
Abstract.The question in this analysis is which gender moai, the big statues on Rapa Nui, represent. My hypothesis is that they have developed from visual symbols to metaphores in mythologies from an polynesian context. That these statues were symbols for human origin and creation of ancestors ideological power, and gods in consideration male gender. In the long isolation, in both time and space, the mytologies in Rapa Nui was changed, and the pictures got a new meaning. These changes depended on clearing of wood and big trees and the following difficult situation in farming.