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8121 Uppsatser om Time-varying - Sida 23 av 542

Röjning på snö och röjning på barmark : effekter på produktivitet och kvarvarande bestånd

Approximately 4000-5000 hectares, of SCA´s forest land area in Västerbotten, are in need of pre-commercial thinning (PCT) every year. Within the management district, the areas annually treated with PCT must increase, in order to decrease the area with an urgent need for PCT. This can be done by employing more forest workers or entrepreneurs, by mechanized PCT or by an extended season for PCT. Positive experiences from a private forest owner, who started to carry out PCT when the first snow came and then continued for several months, gave an idea to investigate the possibilities to prolong the season of PCT. The purpose of this experiment was to compare PCT carried out when there was snow on the ground with PCT performed when there was no snow on the ground.

Tvåstegsavvänjning av köttraskalvar med hjälp av nosbricka :

When beef calves are weaned abruptly at 5 to 6 months of age this triggers a strong stress reaction, since the animals have not yet untied the bonds to their mothers or stopped suckling. This is displayed as extensive vocalization and restlessness. Attempts to diminish the negative effects of weaning on sucking calves have been showing varying results. The study presented here emanates from the observation that when calves are weaned without human interference they are only prevented from suckling, but are still allowed to have social contacts with their mothers. The hypothesis was that calves weaned in two steps would be calmer, gain more weight, and be healthier than animals that were abruptly weaned. To investigate this, 15 calves where weaned in two stages (Group 2), by fitting the calves with nose tags that prevented them from suckling during 5 days prior to the separation of the cows and calves.

Muntligt berättande på folkbibliotekets sagostund

The purpose of this Master's thesis is to elucidate the phenomenon of storytelling and its methodology in the context of public library story-time for pre-school children. It also strives to give an insight into the functions of story-time both with regard to the storyteller and the participating children. The study is based on qualitative methods in the form of a literature analysis, observations and interviews. The interviews were undertaken with two storytellers from the same library who work with children up to three years old and children aged between four and six years. The result of the study suggests that storytelling is more appropriate than reading aloud in situations when large groups of children are involved.

Belåning av aktier : har riskerna underskattats?

Investors? use borrowing as a way to profit from leverage advantages in their portfolios.When investors borrow with their securities as safety for the loan and the value of thesecurities decrease the investor can get a portfolio with more credit than what is covered bythe value of the securities and risk huge losses. To what extent an investor is allowed toborrow with his portfolio as safety depends on the bank or broker and varies between theproviders. By studying available material and in addition to that making an empirical study Iattempt to find out the reason for the varying degrees of leverage possibilities between thebrokers and how the degree of maximum borrowing on the securities are decided. Thefindings show that decision of leverage degree on a security is made after first making aquantitative analysis of the stocks volatility and liquidity and thereafter make a qualitativeanalysis of the company.

Förslag till skötselplan för Uppsala högar och Tunåsen : ett exempel på medbestämmande planering

This Master thesis is made at the request of the local municipality of Uppsala in Sweden. The purpose of this work is to create a guiding management plan. Recreation, conservation of the cultivated landscape and the historical environment, conservation biology and the aim of the landowners are all considerd. The area is almost 34 hectares and located north of the centre of Uppsala. Landowners are the National Heritage Board, the diocese of Uppsala, the university of Uppsala, the local municipality of Uppsala and one private landowner.

Packning i tid och rum : Korologisk förändring och strategier att hantera trängsel i handelsträdgården, bostadsområdet och på begravningsplatsen

The study Packning i tid och rum (Crowding in Time and Space) is a Master Thesis in Human Geography within Geography, presented at Södertörn University College.The aim is to investigate the connections between time and space, more particularly, geographical changes over time. This is done by focusing on the Study of Land use as a phenomenon and on-going processes in demarcated areas. Distinct areas are given special interest, i.e. how they are used. The study deals with three different kinds of sites in three levels of scale: a market garden, cemeteries and a residential area.The main focus of the study is on the cemeteries.

Optimism och stress : En enkätundersökning om förhållandet mellan självupplevd optimism och stress

The idea with this study is to examine if there are a connection between how optimistic people are in relation to how stressed they feel. The result from the survey is based on materials from a questionnaire has been sent to fifty persons of varying age and sexes. The questionnaire has also been sent to students from Karlstad University but also to friends and acquaintances. The data is measured with SE- and LOT-tests. The issues concerned in which scope respondents experiences themselves stressed and optimistic and how the connection is between experienced stress and optimism in relation to results on the figure tests.

Begreppet individ, hos Leibniz och Spinoza, sa?som singula?rt och del i va?rldens ma?ngfald

This thesis deals with the concepts of individual and individuation as defined by Leibniz and Spinoza. I go through the use and definition of the concept of individual in four stages.First I discuss the individual as conceived by Spinoza as a relation formed by a composition of parts and the individual as conceived by Leibniz as a complete notion consisting of all the events in the life of a subject.Next is the roll of perception in Leibniz discussed, likewise individuation through different perception with varying distinctness, and the affinity of perception with affection.The discussions concerning the individual concludes in a section about the essence of the individual as being the desire of the individual. In the last stage, I discuss the multitude as being an own individual..

Sk?rselden i bilder, Makten ?ver sj?larna

This essay examines how art could be used to bring forth and clarify the Catholic doctrines of purgatory. The research questions are: ? How are the Catholic Church?s doctrines of purgatory illustrated in art? ? How can the paintings affect the viewer and his/her notion on how to shorten the time in purgatory? How can art itself be used as a tool to achieve that goal? The timeframe of the chosen paintings is mainly 14th to 16th century but an overview of how the purgatory has been illustrated after that time until the present is also given. In order to answer the first research question, a painting from the 14th century has been analysed, using a method inspired by Patterns of Intention - a theoretical framework formulated by Michel Baxandall. A reception theoretic perspective according to Kemp, is used on a painting from the 15th century to answer the second research question. The results show that purgatory is illustrated as fire and the souls are depicted as living people, despite that a spiritual condition is visualized. The viewers at that time found the descriptions frightening, but the paintings also revealed ways of being granted indulgences, that is shorten-ing the time in purgatory. These ways were praying, making pilgrimages and giving alms.

Voice onset time hos svenska barn och vuxna : Ett utvecklingsperspektiv

Voice onset time (VOT) är en akustisk tidsparameter som reflekterar den tidsmässiga samordningen av talmotoriken. VOT betraktas som det mest pålitliga akustiska kännetecknet på huruvida en klusil är tonlös eller tonande.Föreliggande studies syfte var att studera och jämföra VOT hos svenska barn (8, 9, 10, 11 år) och vuxna för att se hur utvecklingen sker samt för att ta fram svenska normvärden. Ljudinspelningar genomfördes på 150 barn och 36 vuxna vid uttal av de svenska klusilerna i minimala par. Akustiska analyser av materialet utfördes sedan.Resultatet visade att de tonlösa klusilerna föreföll produceras med vuxenlika VOT-värden från och med cirka nio års ålder. De tonande motsvarigheterna producerades med vuxenlik VOT omkring tio års ålder.

Framtagning av beräkningsprogram för helsvetsade balk-balkinfästningar i stål : Verifiering genom fullskalig belastningsprovning

AbstractPurpose ? The purpose of this study is to investigate possible reasons for long lead-time in a customer driven production, and how the lead-time can be reduced. To fulfil the purpose the study has been broken down into two questions.1. Whichfactorsaffectthelead-timeinacustomer-drivenproduction?2.

Föräldrars upplevelser av att barnen flyttar hemifrån : En kvalitativ studie där föräldrar beskriver sina personliga erfarenheter av barnens flytt

The aim of the study was to describe parents' experiences of empty nest. The sample consisted of individuals who had experienced one child moving out of the parental home. Data were collected through qualitative semi-structured interviews and were analyzed by using thematic analysis. The thematic analysis revealed four themes, Concerns about the new time in life, Changing roles, Socializing in the family and Testing the relations. Due to the themes participants' stories reveal anxiety facing the time that will come when children takes the step to leave the nest.

Förbränning av träpellets och pelleterad halm i en 40 kW rosterreaktor

The project focus on combustion of softwood pellets and pellets in a 40 kW grate fire reactor at TEC-Lab. Dept Applied Physics and Electronics at Umeå University. Experiments were performed at four primary airs to fuel ratios (0.7 to 1.3), where aspects such as temperature profile, levels of gases (CO and NO), sintering-/-slagging and unburned fraction of the ashes were studied. Four different fuel loads were used for wood pellets (10, 20 and 30 kW) and one fuel load for straw (10 kW). Combustion of straw proved very difficult to ignite, and also led to other combustion-related technical problem such as slag formation due to the relatively low melting temperature-/-slag temperature of the straw.

Hackelselängdens betydelse för tuggtid och foderkonsumtion hos mjölkkor :

Today, our cows experience a harder pressure to achieve higher milk yield. To manage this challenge the animal needs first class feeding and treatment. An important aspect of the feeding is to fulfil the need from the cows of especially fiber; and fiber with a sufficient proportion of long particles. Both too much and too little fiber is bad for the wellbeing of the cow, and she might get diseases like acidosis. Many models for feed management have been developed to secure that the animal gets enough of e.g. fiber with a sufficient proportion of long particles.

Förekomst av Chlamydia/Chlamydophila spp hos gris med och utan konjunktivit.

ABSTRACTChlamydia and Chlamydophila are species of a family of bacteria (Chlamydiaceae) that cause a range of diseases, including conjunctivitis, in a variety of animals including pigs and humans. Some species cause zoonotic disease. This study examined the occurrence of Chlamydiaceae in samples taken from the lower eyelid conjunctiva in pigs with and without conjunctivitis. The study was initiated based on a herd investigation aimed to examine the experienced increase of conjunctivitis in some finisher herds. This study was conducted as a case-control study, by collecting samples from 62 case pigs (16-26 weeks old) and an equal number of controls, from three herds in Uppland, Sweden.

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