The incidence of many of the most common diseases in dairy cattle has been proven to be highest during the time closest to calving. It is possible that the current breeding strategy with 12 month calving intervals increases the risk for disease in dairy cattle, which is problematic concerning both animal welfare and for economic reasons. The economic incentives behind a calving interval of 12 to 13 months have mainly been based on milk- and feed- costs and no costs due to diseases or fertility disturbances have been included.The aim of this study was to see if a lengthening of the calving interval would result in lower disease frequency. The hypothesis is that cows with a planned calving interval of 15 months have a lower disease incidence than cows with a calving interval of 12 months due to less number of calvings. Therefore the difference in disease frequency should be larger when compared over a long period of time, such as over lifetime, since cows with a longer calving interval experience fewer calvings.The study was performed between August 17th, 1994, and January 24th, 2007.

Male piglets have been castrated for centuries to avoid contamination of their meat with boar taint, a strongly unpleasant odour that makes the meat inedible. Today boar taint can be prohib-ited by vaccination against gonadotropin releasing hormone (GnRH) using Improvac®. The aim of this study was to evaluate the efficiency of vaccination on growth performance and behaviour of vaccinated male pigs compared to surgically castrated male pigs. The effect of two feeding regimes, restricted (SLU-norm) and semi ad libitum, was also included in the study. At birth, pigs (n=206) were randomly allocated to the two treatment groups; surgically castrated and vaccination.

Syftet med examensarbetet var att mot pedagogers praktiska erfarenheter och professionella praktik pröva olika teorier kring risk- och skyddsfaktorer vid utagerande och internaliserande beteendeproblem hos barn och unga samt beteendeproblemens koppling till läsförmåga för att se hur teorierna fungerar i relation till praktiken. Studien är kvalitativ och datainsamlingsmetoder har varit semistrukturerade intervjuer och kompletterande enkäter med sammanlagt tio informanter. Dataanalysen har inspirerats av en fenomenografisk metodansats i de första analysstegen. Resultatet visar bland annat att informanterna har erfarenheter och uppfattningar av att barns/elevers beteendeproblem dels kan handla om förmågor och färdigheter hos individen själv, exempelvis bristande kommunikativ förmåga eller svag självkänsla, dels att faktorer i hemmiljön och/eller förskolan/skolan verkar hindrande för barnets/elevens utveckling och lärande. Framför allt visar materialet att lärarens relation till barnet/eleven och föräldrarna har stor betydelse för utgången av beteendet.

In this paper the rate of convergence, speed of execution and symplectic properties of the time-integrators Leap-Frog (LF2), fourth order Runge-Kutta(RK4) and Crank-Nicholson (CN2) have been studied. This was done by solving the one-dimensional model for a particle in a box (Dirichlet-conditions). The results show that RK4 is the fastest in achieving higher tolerances, while CN2 is the fastest in achieving lower tolerances. Fourth order corrections of LF (LF4)and CN (CN4) were also studied, though these showed no improvements overLF2 and CN2. All methods were shown to exhibit symplectic behavior..

People with certain types of disabilities have the legal right to ask for an individual plan. The idea is that the plan should be a tool for the disabled to get more power and influence over the planned actions that involves their lives. The aim of this thesis was to study the individual circumstances of interpersonal power and influence in the work of individual plans. The study was done with a qualitative approach, where three executing officers and three individuals were interviewed. The results show that the conditions for the individual?s influence are far more complicated than at first glance.

Studien syftar undersöka om den intervention som Vin- och Sprithistoriska Museet i Stockholm anordnar; rollspelet ?Leka med döden?, har haft effekt på attityder till alkohol i trafik hos ungdomar. Som teoretisk bakgrund har Ajzens (1991) ?Theory of Planned Behaviour? används. Enligt teorin påverkar tre faktorer; attityd, subjektiv norm och beteendekontroll, individens intention till att utföra ett beteende.

Since feeding fodder crops to dairy cows is a heavy and time-consuming but often disregarded line of work, this study wishes to view the different possibilities that are currently available to decrease the time to feed and apply this knowledge on an existing farm. For this purpose, four farms have been studied due to what feeding systems that are currently used and how long time the feeding required. The occurring systems are either mobile, i.e. a feed mixer operated by a tractor witch feeds the cattle via a drivable fodder table, or a stationery mixer, i.e. an electrically powered mixer which fills an automatic feeder.

The purpose has been to investigate leisure-time centers actual work on children with attention deficit disorder. In addition, the study strives to make leisure-time centers way of working, in relation to their assignments, visible. The study has also compared how the leisure-time centers work and what the research says. The survey was conducted with the help of three exploratory interviews with pedagogues and three-piece observations at the leisure-time centers. It was carried out at three different schools in two counties in Sweden.The results of the survey show that the schools are trying to create clear procedures, though the centers succeed with this in varied degrees.

This essay analyzes the market for entertainment software by identifying and explain the products typical properties, in addition i clarifies the behavior of consumers and producers. One of the most important property related to software is the ease with which it can be reproduced. When such reproduction is done illicit it´s called piracy. The software industry often claims that piracy leads to big losses for the companies as well as in welfare, the essay clarifies that this doesn´t has to be the case. On the contrary the possibility to cheap production and distribution may lead to an increased welfare.

Denna kvalitativ intervjustudie, söker en förståelse kring fenomenet sex som självskadebeteende. Självskadebeteende har studerats och definierats, men sex som ett självskadebeteende är inte inkluderat som ett begrepp i dessa vetenskapliga studier (Zetterqvist, 2014; Nock, 2014; Klonsky 2009). Däremot har psykologer, organisationer och andra professionella tolkat och definierat fenomenet som att det existerar (Sjöström, 2012; Landgren 2015; Jonsson och Mattson, 2013; Tjejouren 2015; MUCF, 2013). Genom intervjuer med tre olika personer som kommer i kontakt med sex som självskadebeteende, kombinerat med tidigare forskning, visar denna studie att sex kan användas som självskadebeteende och att det görs i syfte att hantera (coping) ångest och andra negativa känslor. Tidigare trauman och/eller en dysfunktionell familjedynamik kan leda till att en individ utvecklar icke fungerande strategier för att hantera potentiella dåliga känslor. Individerna vänder sig till sexuella destruktiva beteenden som en affektregleringstrategi.

The purpose of this study is to contribute knowledge on how pedagogues use play as a way to expose children to the English language. I chose the qualitative method of interviews to conduct my study. The objects of study were four English speaking pedagogues at a preschool with English in their profile. This profile was a major factor when choosing where to carry out the study, as not every preschool in Sweden offers English.The interviews were conducted in English, as all four pedagogues were native English speakers and I did not want a possible language barrier to influence the results. The questions were composed with play as a focal point and a way to expose the children to English.My findings showed that play is an important tool for children to take part of and learn English.

Konsumentbeteende handlar om när, varför, hur och var människor gör ett inköp av en vissprodukt. Konsumenternas demografiska profiler är ett viktigt område inomkonsumentbeteende. När det kommer till frågan om shopping så förknippas ordet i stort settmed kvinnor. Samtidigt beskrivs ofta manligt konsumentbeteende från ett traditionelltperspektiv och skiljer sig från det kvinnliga köpbeteendet. De traditionella stereotyperna förmanligt konsumentbeteende är att män är mer benägna att ta risker när de handlar eftersom deinte brukar fråga personalen om hjälp eller åsikt, de jämför inte olika alternativ med varandra,de brukar inte planerar sina inköp, de är inte villiga att handla i grupp och är ?rädda? för atthandla i kvinnliga butiker.Eftersom könsrollerna kan ändras över tid är det viktigt att inom marknadsföring undersökakring dessa ämnen och inte ta de stereotypa könsrollerna förgivet.

AbstractThe dynamic environment means that organizations always faces new challenges. There are various factors which could affect the process of change thus the purpose of this investigation is to research into the key values of organizational changes. We have done an in-depth research about a planned and ongoing process of change in the organization HEM. The aim is to investigate how knowledge and learning are spread among the staff in the company before and during changes. Also further investigation has been made to study the communication between management and employees through the changes. This report includes seven individuals with different working positions within the organization.

Today the individual ventilated cage system (IVC-system) is the most commonly used system when housing rodents. IVC systems are designed to control both supply and exhausted air at cage level, as well as temperature and relative humidity in the cages. This creates an optimal environment for the mouse and at the same time a protection against the risk of cross-infection between cages and the outside environment. The aim of this study was to evaluate the health and welfare for two different strains of laboratory mice (NMRI nude mice and C57BL/6NCrl mice) in three different kinds of IVC-systems; Arrowmight, Allentown and Tecniplast. 108 mouse pups from each strain (in total 216 mice) were selected after weaning at an age of three weeks and tested during 5 weeks.

The aim of this essay is to get a deeper understanding of a teachers' profession and to get knowledge of how earlier experiences can influence you as a teacher. I have interviewed a female teacher, Pia to get this understanding. As a tool to get the teacher's whole story I used the life story method. In her profession she is influenced by her own importance of security as a child.Her own needs of security has given her an deeper understanding for pupils like herself during the childhood; insecure and afraid. Her understanding for all kinds of behavior among the children has increased by her own experiences.The story shows that Pia is frustrated by the fact that she can't control her own working time.