Millions of preselected progeny have been born since the development of The Beltsville Sperm Sexing Technology 1986. The method is based on flow cytometry and sorting is done on the basis of DNA difference of the X- and Y-chromosomes. Preselection of progeny provides an opportunity to obtain genetic gain and increased production as well as increased animal welfare and decreased environmental impact. However, the method is associated with low fertility, high costs and uncertainty whether the sorting process contributes to DNA damage and thereby results in genetically impaired progeny. Today, sex sorted sperm is only commercially available in the bovine industry, due to the fact that bull sperm is more suitable for selection than sperm from other species.

Aim: The study aims to investigate the distribution of grades between students in a practical subject and in a theoretical subject.The problem:What is the grade distribution in physical education and mathematics, with respect to gender, socioeconomic background, parental education, ethnicity, and physical activity?Method:To answer the aim of the study a quantitative method was chosen. As the collection method used was questionnaires to 620 students in the 9th grade in Stockholm. Of the 620 questionnaires, 597 questionnaires were used for the static analysis. The method of analysis used cross tables and logistic regression analysis.

The technological legacy from the early electrification of the Swedish railroads has resulted in a power grid with a lower grid frequency than the national power grid from which it is fed. Energy transfer between these power grids with different frequencies requires substations, adapting the grid frequency for the rail road power grid. For this purpose, a feeding power grid has been built, stretching across the country from Boden in the north to Tälle/Häggvik in the south.Power transfer in the Swedish power grid results in voltage angle differences which increase with increasing loads and transfer distance. These voltage angle differences are transferred from the power feeding substations to the rail road power grid, will in some extent cause loss of energy due to unwanted power flows from north to south.To minimize the losses due to this phenomenon, a power management system called EFS 132 kV has been developed and implemented. The system minimizes the unwanted power flows and controls the desired power flow for a good distribution of loads between the power feeding substations.This thesis investigates the extent of the transmission losses avoided due to the EFS 132 kV that coordinates the idling angles to a common reference point.The results indicate that EFS 132 kV affects the power flow, especially between the northern substations through an improved load distribution.

This is a study, the purpose of which is to investigate how the construction company Sefab Bygg AB is able to increase its profitability and render a more efficient production process through logistic solutions. The study is made during one of Sefab´s present projects. The project includes sanitary renovation of 650 apartments in the co-operative Opalen in Norrköping.To find out whether changes of logistic routines are profitable or not, it?s necessary to evaluate the total cost of the changes. A total cost analysis is a mapping of all the costs for a particular material, on one hand for the present situation and on the other after the change.

The aim of this thesis is to examine Sven Almqvist?s research on the 17th century book printer Johann Kankel who was employed by count Per Brahe the younger on the island of Visingsö. A model to describe the communications circuit, constructed by book historians Thomas R. Adams and Nicolas Barker are used as well as the historical source criticism method. This model consists of the five phases: publication, manufacture, distribution, reception and survival.

In today?s society there is an ongoing debate concerning gender distribution amongst the top executives and there is a clear distinction between the men and women in leading positions. The reason for this can be because men and women to a certain degree conduct leadership differently. It is said that men are more focused on task oriented leadership while women seem to focus on a relation oriented and more interactive leadership. A leader?s success could be due to his or her ability to set up and use a network.

This thesis investigates the socio- and environmental economic effects of a deep repository for spent nuclear fuel in Forsmark in the municipality of Östhammar. I seek to show the general picture but focus on the effects on employment, environment and income. Cost-benefit analysis is used to investigate the differences in utility between a scenario with and a scenario without a deep repository in Forsmark. Most of the possible effects can not be valued and many can not even be quantified with the data available today. Therefore this thesis has a bit of a ?preliminary study character? and seeks to show what we know today and what needs to be further investigated when available data allow it. The costs that could be valued are noise from the traffic during the period of building and emissions of carbon dioxide and nitrogen oxides from the transportation of rock masses during the building period.

The Smart Grid technology has during the last decade been established as a way to create a greater flexibility on the electricity grid that will be needed as the development moves towards an increased share of renewable primary energy sources in the electricity production. One part of the Smart Grid technology is the ability to shift loads in time, to adapt to either price or emissions, known as Demand Response. This project, which was conducted at KTH in collaboration with the consulting corporation Capgemini, examines the economic, environmental and social aspects of the Demand Response technology. In the project, three household products are used in a model that derives the potential savings in costs and emissions of CO2e. The results show that the actual savings measured in SEK are small, but that the savings measured in percent can be as high as 20 percent. Reduction of CO2e emissions is slightly lower.

Storage of biomass is associated with problems like heat development, biomasslosses, and reduction of the fuel quality. Certain processes such as biological- andchemical degradation are responsible for these storage problems. This master?sthesis was carried out at Vattenfall Research and Development AB and is alignedtowards quantifying the biomass losses from short-term storage (1-2 months) ofbark and recovered wood. The biomass was stored in outdoor piles during differentseasons, campaign 1 (summer) and campaign 2 (autumn).

This Bachelor Thesis is entitled ?Swedish parental leave and gender equality. Effects on women?s conditions on the labour market?. Through our empirical results in conjunction with economical and sociological theories, this Bachelor Thesis attempts to answer the questions: 1) Why are the claims for Swedish parental leave unevenly distributed between men and women? 2) Does the uneven distribution result in discrimination of women on the labour market? 3) How do different designs of parental leave scheme influence women?s conditions on the labour market and which possibilities are there to change these conditions through changes in the design? We make use of case studies from Denmark, Iceland and Great Britain, which work as basis for policy implications for the Swedish parental leave scheme.

I denna magisteruppsats har författarna valt att studera Åbro Bryggeri AB: s distribution och belysa skillnader mellan olika metoder att planera transporterna på. Valet av ämne är intressant för oss som logistikstudenter, transporter och varudistribution är ett område som liksom övrig logistik är under ständig förändring.SyfteSyftet med denna uppsats är att analysera och utvärdera Åbro Bryggeri AB: s manuella metod för ruttplanering som används idag, och sedan jämföra detta mot effekterna av ett datoriseratruttplaneringsprogram. Uppgiften är avgränsad till att undersöka uppläggning och planering av rutter från Åbro Bryggeri AB:s terminal i Årsta, Stockholm.Undersökningen har gjorts genom en fallstudie som innefattar både kvalitativa och kvantitativa metoder. Kvalitativ forskning har använts för att beskriva exempelvis distributionssystemet vid Åbro Bryggeri. Kvantitativ forskning har använts där stora mängderdata samlats in, exempel på detta är jämförelsen mellan dagens ruttplaneringssystem vid Åbro och simulerade lösningar i ett datoriserat ruttplaneringsprogram.

The Swedish cooperative Lantmännen Ekonomiska Förening has initiated a project labelled "Operation Blåljus" that includes an extensive program for closing down elevators. The number of elevators will be reduced from 92 to approximately 15 after harvest of 2007. The objective of Blåljus is to increase the price of grain with 10 öre/kg. A project has been initiated at the Lantmännen Grain division where the purpose is to provide the farmers with support in their decisions and practical advice how they can load a 35 ton grain truck on 30 minutes. The result from the project will serve as a support system to the farmer in his ambition to achieve cost efficient systems to load a truck with grain on the farm.

Stora som små företag kan idag vara med och konkurrera om kunder på den globala marknaden. För att överbrygga den geografiska problematiken med stora avstånd mellan kunder och aktörer inom värdekedjan, har dagens utvecklade transporter och tillika transportnät haft en enorm betydelse. Produkter kan idag med relativt små ekonomiska medel förflyttas för att skapa ett större ekonomiskt värde på ett långt avstånd ifrån det säljande företaget.Olika produkter har dock olika krav beträffande leveransservice och leveranssäkerhet. Många produkter kan transporteras och distribueras under en längre tid och för en lägre kostnad, medan andra kräver att transport och förflyttning löses omedelbart. De långa avstånden på den globala marknaden gör det extra svårt för företag vilka säljer och distribuerar tidskänsliga produkter, men även för exempelvis produkter utvecklade för akut vårdassistans.

The Smart Grid technology has during the last decade been established as a way to create a greater flexibility on the electricity grid that will be needed as the development moves towards an increased share of renewable primary energy sources in the electricity production. One part of the Smart Grid technology is the ability to shift loads in time, to adapt to either price or emissions, known as Demand Response. This project, which was conducted at KTH in collaboration with the consulting corporation Capgemini, examines the economic, environmental and social aspects of the Demand Response technology. In the project, three household products are used in a model that derives the potential savings in costs and emissions of CO2e. The results show that the actual savings measured in SEK are small, but that the savings measured in percent can be as high as 20 percent. Reduction of CO2e emissions is slightly lower.

The purpose with this essay is to study how a micro enterprise builds a brand. This because the current situation makes it difficult to stand out from the vast amount of marketing messages available in the market without having an extensive marketing campaign. Small companies do not have the opportunity to put a lot of recourses as money into marketing as the large companies do. Neither do they afford to repair a brand failure.Brand building is a process that constantly is in progress in a company, large or small. To make this process concrete we have chosen to study the four factors; brand awareness, perceived quality, brand associations and brand loyalty.