Detection of leukocytes in semen from boars is part of the routine control of semen quality. Leukocytes in semen can cause damage to spermatozoa that leads to impaired fertilization. In the artificial insemination (AI) industry there are standard routines for the quality control of the boars and of the neat semen before use. Since 2001, Quality Genetics has not done the leukocyte examination on semen samples from boars which are used for the production of pigs for slaughter. The purpose of this study was to investigate the occurrence of leukocytes in semen from AI-boars. The questions addressed were whether there are boars that have leukocytes in their semen and how frequently it occurs and, moreover, if there are differences between breeds, or even between individuals whose semen was checked before use in AI-dose production compared to those which were not. The study included a total of 135 AI-boars, of which 67 were Hampshire, 35 Yorkshire and 33 Landrace, all belonging to Quality Genetics AI-station in Hållsta.

Wind power is one of the sources of renewable energy which has to be developed further in order to lessen our dependence on non renewable sources of energy. It's mainly oil and coal which have to be replaced by green energy. Wind power is already established in many countries, for example Germany, The United States of America and Denmark but it has to be continually developed and expanded to meet the needs of the growing energy consumption in the world. During the last few years many types of small wind turbines have appeared on the market. These small wind turbines are an alternative to the big wind turbines or power generators which demand huge sums of investment money.A new target group can now buy the small wind turbines in order to cover their own usage of electricity.

Today there are many applications of digital terrain models (DTM) and the requirements of low uncertainty increases. Most of the DTM are produced with Global Navigation Satellite System (GNSS), terrestrial laser scanning (TLS), airborne laser scanning (ALS) and total stations. Guidelines for the preparation and verification of DTM are found in Swedish Standards Institute ? Technical Specifications (SIS-TS) 21144:2007 and SIS-TS 21145:2007. These were defined in collaboration between Swedish National Rail Administration, Banverket, and Swedish Road Administration, Vägverket, to satisfy the needs of requirement formulations in the production of DTM planning, design and construction. The purpose of this paper is to produce and control DTM over Åkermans kulle, located west of the University of Gävle, according to SIS TS 21144:2007 using GNSS with network-RTK, TLS and ALS.

In this essay a proposal of city renewal is made for the new train station area built on highly productive agricultural land in Landskrona. The proposal is based on how the situation for the agricultural land in terms of exploitation looks like today and also on theories of urban governance to find out why the area turned out the way it did..

Syftet med denna studie är att på ta reda på vad en bra hands-on-artefakt för museum är och hur den bör utformas. En kvalitativ fallstudie är gjord på utställningen Sinnrika människan på Naturhistoriska riksmuseet. Empirin har fåtts fram genom korta intervjuer och observation med museibesökare samt djupgående intervjuer med personer insatta i ämnet. Resultatet har sedan både analyserats individuellt och korsanalyserats, efter detta har resultatet kategoriserats. Slutsatsen för studien visade att det är många aspekter som spelar in vid skapandet av en interaktiv station, en av de viktigaste aspekterna är tydlighet om vad syftet med stationen är och hur den utförs..

In this literature review the characteristics of two free-floating macrophytes, water hyacinth   (Eichhornia crassipes) and duckweed (Lemna sp.), and two microalgae, Chlorella and Scenedesmus, have been examined regarding their suitability as efficient nutrient removers in the treatment of wastewater with high levels of nutrients and suspended solids from a biogas plant in Loudden. The needs required for the plants to be able to grow in wastewater and the amounts of biomass they can produce have also been studied. The results show that Chlorella is capable of a very high uptake of nutrients in photobioreactors with high nutrient loadings. With an ammonia uptake maximum value at 10900mg/m2/d Chlorella outshines the other organisms in this study. The test organism that performed the closest to Chlorella in terms of nitrogen uptake was water hyacinth with an uptake about 1602mg/m2/d.

The hydropower from Nissan River is of national interest and produces annually 230 GWh from the twelve power stations in the main flow. For modified waters a consideration between the power production and the biological values has to be made. This reports serves as a pre-study for Nissans Vattenråd. It tries to evaluate some of the biological values in the Nissan basin and map the power production in the area. And the size and value of lost power production from new fishways for the twelve stations in the main flow.The investment of new fishways is calculated using simplified templates with values from the business.

Dissertation in political science, D-level by Niklas Andersson, Spring Semester 2010. Tutor: Malin Stegmann McCallion?Societies in Crisis ? When Washington Take Over?An economic meltdown wreaks havoc on the world and has plunged the Western world into a spiral of economic stimulus in order to keep their way of life intact. At the same time the same institutions that support these countries have had another agenda for more unfortunate and less influential countries where nothing has been free and everything been to a price of self-sacrifice in order to get the consent of the IMF and the World Bank. Everything according to the points stated in the so called Washington Consensus.The purpose of this dissertation is to research what impact the Washington Consensus has on the state in terms of power over the market and sovereignty.

Karlsson. A (2015). Importance of spirituality and social support for quitting narcotics - Experiences of the12 step program. Bachelor thesis in Public Health science. Department of work- and public health science.

The structural rationalization of rural firms in Sweden has led to many new creative ways of developing companies. The agriculture sector is characterized by the need of capital in form of buildings, labor and inventory. The rationalization process has led to free capacity in rural firms when new technology make buildings and inventory not longer necessary for the production process. To get a better cost coverage this free capacity can be used to start-up new business areas that help the rural firm to growth.The study aims to identify factors that motives entrepreneurs in rural firms to develop new business areas. The purpose is also to analyze driving forces that lies behind development of rural firms and the forces that support or not support development in rural firms.The study is built upon five cases that all can be categorized as firms with different size and orientation.

The aim of this study has been to take part of six ex-alcohol addicts? narratives about their lives with starting-point in which factors that has been significant and/or determining to be able to leave a life in abuse and what change this process has implied for their identity. To achieve the purpose with this study has three questions been formulated. These are what in the person?s life have been important in the process of a life free from alcohol, what were specific and decisive that effected the decision to stop using alcohol and what is the attitude to them self and their new role as an ex-alcohol addict. Alcohol is a drug that is legal and accepted in the society and it´s hard to discover an addiction.

This Master's thesis aims at pinpointing the political arguments that appear in the recent debate on scientific publication. There is a widely spread opinion that prices on digital resources are far too high, thus taking up a major part of the University libraries budget, while publishing companies make high profits. It is also a common opinion that the current publishing method does not take full advantage of the possibilities of electronic publishing. Lately a number of alternative ways of publishing have been initiated and discussed, generally referred to as open access. Open access published material is available free of charge and free of most copyright and licensing restrictions on the public internet.In this thesis the minutes from four hearings held by the UK House of Commons in the spring of 2004 are examined.

?Halmstads Fastighets AB? is a local real estate company investing in sustainable development. One problem though is that the domestic waste, particularly the source separation, at the three resident blocks for students? isn´t working very well. This creates inconveniences for people and environment as well as decreasing the impression on the estates.This project has had the ambition to improve the domestic waste and increase the amount of source separation at HFAB´s student hostels.

Uppsatsen behandlar frågan om huruvida en totalt skattefinansierad kollektivtrafik med nolltariff kan anses vara rättvis och effektiv. Organisationen Planka.nu:s argument för nolltariff i kollektivtrafiken analyseras med utgångspunkt i free ridning-problemet och individens betalningsvilja. Den skattefinansierade nolltariffen jämförs med marginalkostnadsprissättning och tvådelad tariff, som är två teorier om optimal prissättning av kollektiva varor. Kollektivtrafik beskrivs som en klubbvara med vissa positiva externa effekter samtidigt som varans substitut väntas generera negativa externa effekter. I uppsatsen antas den samhällsoptimala mängden kollektivtrafik vara högre än summan av alla individers individuella efterfråga p.g.a.

Syftet med uppsatsen har varit att undersöka elevers upplevelser av tre grupprocesser samt vilken påverkan eleverna upplever att grupprocesserna har på elevernas kunskapsutveckling. De studerade grupprocesserna är groupthink, rollagande och free-riding. Vi har valt att utföra studien genom kvalitativa intervjuer med fyra stycken gymnasieelever för att ta reda på deras upplevelser av grupparbete och grupprocesser. Resultatet av intervjuerna presenteras i kapitel 4. Analys i form av citat där vi även har reflekterat över det som sagts.