Hemoglobin is an oxygen binding protein in erythrocytes. Hemoglobin is composed of four polypeptide chains. During the fetal stage the type of hemoglobin called fetal hemoglobin (HbF) dominates. After birth HbF is replaced by adult hemoglobin (HbA). HbF persists in concentrations less than 1%.

Apart from recognizing and neutralizing threats, antibodies also have the ability to regulate immune responses against their specific antigen. IgG administered together with erythrocytes is well known to induce >99% suppression. This has been used to prevent haemolytic disease in new-borns since the 1960's, but the mechanism behind it is still not completely understood. The effect on the primary response is well established, but its influence on induction of immunological memory is still heavily debated. In this study adoptive cell transfer of splenocytes to irradiated mice was used to survey the effect IgG has on induction of immunological memory without disturbance from the primary IgG response.

The aim of this Master?s thesis is to examine how the lifestyle of youth between the ages of 15-17 is influenced by electronic media and also what view and opinions youth has regarding electronic media and lifestyle. We intend to examine how and when the youth use electronic media in their everyday lives, what purpose the electronic media has in the life of the youth, and finally what views and opinions regarding electronic media and questions regarding lifestyle the youth express. We as librarians and adults need more knowledge on how youth use electronic media and also what thoughts they have regarding media and lifestyle. We would like to bring some knowledge to the discussion in this area with our study to librarians as well as parents.

Today digital guides are most frequently used by the museum and tourism industries. They are also used for education purposes. They make it possible to distribute information and have it easily accessible. In addition to written information they add sound, pictures and videos which lift the whole impression of the visited place to a higher level. A variety of systems currently in use today have been evaluated.

ABSTRACT Infertility is a medical condition that affects approximately 16 % of Swedish couples in childbearing age and is a condition found in both men and women. When a couple has been trying to conceive for more than 12 months without success they need to see a health care provider. Infertility can be treated with medicine, insemination or assisted reproductive technology such as in-vitro fertilization (IVF) and intra-cytoplasmic sperm injection (ICSI). The aim of this study was to validate a morphokinetic selection model, KIDScore? D3 Basic, against morphological selection model that is currently in use at the Fertility unit at University hospital in Orebro.

VBG Produkter AB is a process-orientated company that develops, manufactures and markets trailer couplings with belonging coupling equipment, protection equipment against skidding and stands for wagon-bridge for heavy vehicles. The company feels that their set-up time in production for couplings is not at an acceptable level. Due to high demands of customer oriented production the intermediate stock level of included products within the assembly of couplings has gradually increased which has resulted in high inventory holding costs. VBG Produkter applies Kanban in their production, therefore it is important to produce exactly the necessary amount and avoid overproduction. The objective of this project is to suggest appropriate solutions so that VBG Produkter is able to reduce their set-up time in assembly of couplings, by identifying internal and external set-up time for the chosen process bushing cell.

When different type of programs are developed one wants to make these adjustable to future changes and requirements. It must be done a good design of the program from the beginning to make it possible to continue development of it without having to redo big parts of it to high costs. In the area of object orientation there are design pattern, which can be used to design systems that can be adjusted to new changes in an easier way. I have in this thesis chosen to take a closer look at how to design a program that sends SMS to cell phones through a system of an operator. One requirement on the program is that it has to be possible to change what operator to send though in an easy way.

Utanför Östergarnsholm, öster om Gotland, har mätningar utförts sedan våren 1995. Mätningarna är gjorda med instrument monterade på en 30 m hög mast samt med hjälp av vågbojar. Mätstationerna är placerade så att vid vind från Gotland blir vågorna begränsade av avståndet från mätstation till land (kallat fetch). Då vinden kommer norr och söder om Gotland, kan vågorna antas komma från öppet hav. Denna klara uppdelning på fetch är både till för- och nackdel för studien.

Examensarbetet som utförts vid Jönköpings tekniska högskola har syftet att konstruera en audioförstärkare. Målet var att åstadkomma goda prestanda på den valda audioförskartypen. Den utvalda varianten utvärderas med avseende på dess prestanda. Audioförstärkaren bör ha följande egenskaper: En kanal med en uteffekt på minst 40W samt ett frekvensområde på 20Hz till 20KHz, utan att använda sig av integrerade komponenter. Temat för rapporten bygger på analysering av konstruktionskretsen och en detaljerad beskrivning av ingående delar samt jämförelse med andra kopplingar med liknande funktion.

I denna studie har förekomst av progesteronreceptorer i olika typer av primära juvertumörer undersökts med hjälp av immunohistokemi. Dessutom har tumörceller från carcinomcellinjen CMT-U27 odlats i olika cellodlingsmedium och exponerats för olika testsubstanser som binder till progesteronreceptorn (progesteron och RU486/mifepristone). Cellernas receptoruttryck och progesteroninnehåll utvärderades med hjälp av ELISA och tumörcellernas viabilitet analyserades med Colorimetric Cell Viability Test. Av resultaten framgår att samtliga undersökta primära juvertumörer uttryckte progesteronreceptorer. De odlade cellerna hade högre cellviabilitet när de odlades utan fetalt bovint serum (FBS). Efter exponering med progesteron minskade tumörcellernas uttryck av progesteronreceptorer, vilket hämmades av mifepristone.

Hemoglobin is an oxygen binding protein in erythrocytes. Hemoglobin is composed of four polypeptide chains. During the fetal stage the type of hemoglobin called fetal hemoglobin (HbF) dominates. After birth HbF is replaced by adult hemoglobin (HbA). HbF persists in concentrations less than 1%.

Man's life has changed in many ways since technology made it?s entry for public at large. In response to this change the science of human-machine interaction was invented. It has in turn evolved into human-computer interaction. With this science the focus is on the customization of the system for the actual person who will use it.The thesis has been implemented in a telecom company's development department.

Background: Society of today is characterised by greater dynamics and a constant demand for innovation and fresh ideas. This development is often named "the new economy" or "the knowledge society". Independent of how one chooses to name this society, most individuals seem to agree upon the fact that knowledge grows more and more important. New competencies, such as new knowledge and new forms of organising, will be demanded for corporations to be successful in the future. In recent years it has become more common with corporations based on projects.

Spitz nevus was first described by Sophie Spitz in 1948 as juvenile melanoma. The lesion is a benign melanocytic tumor, which consists of epiteloid- and spindelshaped cells. Histological is spitz nevus difficult to distinguish from malign melanomas and spitzoid melanomas. Loss of symmetry, loss of maturation in the deep component, nuclear polymorphism and hyper chromatic nucleus are features which can be found in melanomas. Some of these features are often seen in spitz nevus.

Preservation of cells and tissues by freezing at temperatures below 70°C has led to new possibilities for the storage of germ cells for fertility preservation. During the freezing process problems might occur, the greatest being ice crystallization which can cause membrane destruction and thus cell death. To minimize this risk, solutions that reduce the freezing point can be added to reduce crystallization and increase survival rates. These solutions are called cryoprotectants. The best method for freezing is still not known.The aim of this study was to analyze the effect of various parameters on the survival rate of human semen frozen with liquid nitrogen.