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68 Uppsatser om Estimations - Sida 5 av 5
Mixture and single-compound toxicity using Daphnia magna : comparisons with estimates of concentration addition and independent action
Aquatic organisms are usually not exposed to single substances but rather to mixtures of toxicants in streams located in agricultural areas. The transport of pesticides used in the agricultural area in Sweden is monitored with continuous environmental supervision every year. During 2002-2008 an average of 10 pesticides were found in each sample and 40% of the samples contained substances with concentrations higher than the Water Quality Standards. Chemical risk management is normally based on single-test evaluations. A problem when assessing mixture toxicities is that the constituents and concentrations of pollutants in the environment vary greatly.
Ridhästens samling : en jämförelse av subjektiva bedömningar och objektiv kinematisk analys
The modern veterinarian in horse practice is often consulted by horse owners concerning riding problems. These problems are more complex and show other characteristics than traditional lameness. For the diagnostic process and to give adequate advice the veterinarians need an understanding of riding terminology and problems related to riding. It is also of high importance that riders, trainers and veterinarians increase the knowledge of equine biomechanics and how these are influenced by the rider. Collection is an important concept in the riding terminology.
Flykten från slutenvården Orsaker till varför specialistsjuksköterskor inom sluten psykiatrisk vård slutar
Bakgrund: Det är en brist på specialistsjuksköterskor inom sluten psykiatrisk vård. Det är därför viktigt för arbetsgivaren att få kännedom om vad som motiverar specialistsjuksköterskanatt stanna inom psykiatrisk slutenvård och vad som får henne eller honom att söka sig frånslutenvården.Syfte: Syftet med denna studie är att undersöka specialistsjuksköterskors inom psykiatrisk vårdoch vårdenhetschefers uppfattningar om möjliga orsaker till varför specialistsjuksköterskorinom sluten psykiatrisk vård slutar.Metod: Studien är genomförd med kvalitativ metod och fokusgruppsmetoden valdes. En gruppbestod av fyra sjuksköterskor med specialistutbildning inom psykiatrisk vård. Den andragruppen bestod av två vårdenhetschefer. Intervjuerna spelades in och transkriberades.Materialet analyserades med kvalitativ innehållsanalys.
I vilken utsträckning används ekonomistyrning? : en studie av fyra företag.
ABSTRACT Titel: I vilken utsträckning används ekonomistyrning i praktiken? - En studie av fyra företag Nivå: C-uppsats i ämnet företagsekonomi (15 hp) Författare: Emma Roos och Fanny Wiklander Handledare: Mats Ryding Datum: 2009-05 Syfte: Syftet med denna uppsats är att få en inblick i hur verkliga företag arbetar med ekonomisk styrning mot bakgrund av vår teoristudie och det vi lärt oss i vår utbildning. Vi har intervjuat fyra företag inom olika branscher för att ta reda på i vilken utsträckning de använder sig av ekonomisk redovisning. Vi har också undersökt om dessa företag använder affärssystem och vilken betydelse dessa har, samt om de påverkats av finanskrisen och därför blivit mer noggranna och försiktiga när de ska ta ekonomiska beslut. Metod: Vi har använt oss av den kvalitativa metoden i denna uppsats. I den kvalitativa metoden finns det en fysisk närhet till det forskningsobjekt man studerar då man helst ska möta respondenten ansikte mot ansikte.
Stress test methods : a potential approach to hurry up shelf-life tests on oat products
The aim of this Master?s thesis was to find out more about the delimiting quality- and shelf-life parameters over time for liquid oat-based products. According to that, to present applicable subjective and objective shelf-life test approaches at accelerated conditions. The study aimed to gain a deeper knowledge concerning the general and accepted way of performing accelerated storage tests. This study focused especially on products, which suffer from quality failure caused by oxidation, such as liquid oat-based products.
Prevalence of congenital defects in Swedish Hampshire, Landrace and Yorkshire pig breeds and opinions on their prevalence in Swedish commercial herds
This study concerns congenital defects in pigs; umbilical and scrotal hernia, cryptorchidism, kyphosis, splay legs, anal atresia, intersexuality and congenital tremor. The aim was to describe and estimate the prevalence of these defects and estimate the heritability for the most frequent defects, scrotal hernia and cryptorchidism in purebred Swedish Hampshire, Landrace and Yorkshire populations. Furthermore, information and opinions from herdsmen in commercial herds was collected and analysed. A low proportion of congenital defect pigs is of importance both from animal welfare and economic point of view. The accuracy of registration of the presence of defects in the litters has a decisive role for the ability to select against these defects.
Sortimentsinriktad avverkning
Forest enterprises have always searched for ways to improve efficiency. For the past few
years there has been an emphasis on stock-keeping levels. Increased demand for fresh
round timber and the need to decrease the amount of tied-up capital has made the forest
industry reduce its inventory levels. This has brought on a higher demand on the timber
supply from the forest management districts concerning both delivery in time and
assortment output. As a result, the flow of timber has fluctuated a lot with serious
consequence for the timber supply during 1994.
EU ger eko bland korna - från uppbundet till lösdrift :
ABSTRACT
For hundreds of years there has been a tradition with tethered dairy cows in Sweden. The last
decades the old fashioned way to hold cows have been questioned and the number of dairy
cows in loose housing has been increasing. Last year (2004) 19 percent in total of all farms
with milk production in Sweden had their cows in loose housing. Because of EU-legislation
concerning all organic production no farms are allowed to build tie stalls any more and after
2010 all organic dairy cows are supposed to live in loose-housing systems.
The aim of the thesis was mainly to find out the number of farms with tethered organic dairy
cows and if they will continue after the year 2010. Furthermore the purpose was to study if
there are any regional differences, how countries similar to Sweden interpret the EU-decision
about tethered cows and differences in buildings between organic and conventional farms and
the reasons to them.