This is a study on the electronic reference work of some Swedish university and university college libraries. The purpose of the study has been to find out how the service works at the different libraries, to study the electronic reference interview and to find what is important when you start a new electronic reference service in the light of Brenda Dervin's sense-making theory study. Furthermore, we examine the aims of the electronic services offered and the differences between electronic and traditional reference interviews. In the background to the study we place electronic reference services in a context by describing the role of information technology and electronic mail in the libraries. The electronic reference interview is studied with the help of literature on the traditional reference interview.

The aim of this Masters thesis is to understand how librarians develop their reference service. The purpose was to find patterns in how librarians work with reference questions. As a theoretical framework we have used research in the reference field. Where do the skills of the search process come from: education or experience? Answers were sought to the following questions: - How different are the search process in practice compared to theory? - Which similarities and differences are there among the informants? - How important was the education in comparison to the knowledge about the libraries collections? - How did the changes in the school system in 1993 influence reference education and what could the consequences be to the reference knowledge among librarians? We sent out a question form and a search question which was answered by 12 librarians in university and university college libraries.

The aim and goal of this work has been to design and implement a voltage reference network for a 12-bit PSAADC, Parallell Successive Analog to Digital Converter. A chip containing the design has been sent away for fabrication. Because of the long processing time, no measurement data are presented. The main specifications for the voltage reference generator is to generate stable reference voltages with low noise and a good PSRR. Efforts has also been made to minimize the power consumption..

The main purpose of this Masters thesis was to examine how the Internet and other electronic sources have affected public librarians use of printed reference sources. During the last couple of years the use of the electronic sources - in particular the Internet has become more established in the Swedish public libraries. Our aim was to examine if and how this has affected the use of the printed reference sources. This has been examined on the basis of the following factors: the gender and age of the librarians and how long they have served in the library. We also examined if the size of the library affects the use of the printed and the electronic reference sources and also which factors that are most important when librarians acquire reference sources.

The main purpose of this study was to establish to what extent undergraduate students use reference services, what knowledge they have about those services and what their views of them are.The survey took place at Lund University Library, UB1, the main library responsible for collections in social sciences, humanities, theology and law. A total of 476 undergraduate students were asked to fill in a questionnaire, 273 accepted. The study is quantitative and was carried out during the autumn semester, 1996.The results show that the service used most frequently by undergraduate students is the reference collection. The least used service is the Internet, more than 50 percent of the students never use Internet at the University Library. In general, students are very pleased with the service given by the reference librarians, and with the collection of reference books.

Erythropoiesis is a complex and carefully controlled process which is mainly regulated by erythropoietin. Using flow cytometry cells in a blood sample can be analyzed one by one. ADVIA 2120 using flow cytometry for analysis of red blood cells (RBC) and reticulocytes. Red blood cell distribution width (RDW) is a component of the RBC method. RDW indicates size variation on erythrocytes and is measured as a percentage of the mean cell volume (MCV). By measuring the RDW anemia can be divided into makrocytic, microcytic or normocytic. Reticulocytes refract light more strongly than red blood cells because they contain some cellular debris. The number of reticulocytes in the peripheral blood reflects erythropoiesis in the bone marrow. The purpose of this project was that by approved methods to establish reference ranges for the parameters, RDW and reticulocyte counts.The individuals who participated in the study, n=124, were considered healthy and had varying ethnicity. Reference subjects had not donated blood the last six months and participation in the study was voluntary.The statistic evaluation includes examination of distribution, and reference ranges for both men and women were established using the 2.5:t and 97.5:t percentiles. The calculated reference interval for RDW was between 12.0 ? 14.3% and the calculated reference interval for reticulocytes was between 38.0 ? 112.8 x109 cells/L. The results showed a significant difference between males and females for the parameter reticulocytes was seen. The difference indicates that different reference ranges should be established for men and women (p<0,0001). No significant difference between males and females were seen for RDW (p=0,74) indicating that the same reference ranges can be used for both men and women. .

The aim of this master thesis is to find out if young people and librarians think that reference groups can support public libraries to meet the needs of young people, and if the reference groups, which the librarians describe, differentiates from the young peoples requirements. I have made a qualitative study with a questionnaire to six librarians who have experience from reference groups and ten interviews with teenagers. The result showed that young people have many interests and needs which can be met from the library. The teenagers were positive to the library and many of them showed interest in having more influence on the library. Many would like to join a reference group, but on the condition that they would be offered real influence.

The purpose of this master thesis is to investigate how librarians working in academic libraries are experiencing the reference situation from a pedagogical point of view, by applying a theoretical framework consisting of learning strategies and their different characteristics, to qualitative interviews. Other goals are to elucidate the fact that learning takes place every day at libraries during the reference situation and that this work must be seen as ?one of the most important activities that takes place at the library?, using the words from one of the interviewed librarians, but also to make place for more discussions regarding pedagogic and library work. This is done by posing questions about knowledge, learning, information literacy, communication, the reference encounter, the roles of the librarian, policy and also architectural aspects of the reference situation. The interviews were taped, transcribed and categorized according to the earlier mentioned areas of interest.

This master thesis is a study of a new electronic library reference service-project called Speak instantly to a librarian and the purpose of the thesis is to investigate a new electronic reference service and how the librarians who work with it experience it. This should be seen from an informational society point of view. The study is conducted from two questions: - What needs do the libraries have and how do they argue for the project and the chat-reference service Speak instantly to a librarian? - How do the librarians experience the personal work situation in the new reference service, and its use of chat technology? Together with interviews of a selected group of librarians from the public libraries of Göteborg, Malmö, Nacka and Stockholm, this thesis includes aspects such as the theory of the informational society by Manuel Castells, as well as literary studies of the history of library reference, the development of electronic reference service and the virtual library, and the background and the beginning of the studied project Speak instantly to a librarian. The thesis also contains an overlook of other similar library projects in the United States of America.

In this thesis the methane gas potential of three different substrates, two algaes Saccharina latissima and Laminaria digitata and biosludge mixed with paper fiber was studied. This was done by batch experiments in a laboratory environment to examine the gas production and composition of the produced gas.Biogas production is a complex anaerobic digestion process in which various microorganisms decompose the substrate in steps and at the end produce biogas and a residue. Many factors affect the production of gas, for example the substrate content, temperature and pH in the digester.The analysis of methane potential were divided into two experiments. In experiment 1 substrates were digested along with inoculum from Växjö waste water treatment plant in a temperature of about 37 ?C.

The study aims to shed light on the phenomenon of employeeship at a Swedish Staffing Agencise . This has been done on the basis of two questions. How can employeeship look like in a service? What is the role given employeeship in developing contexts? In order to answer the purpose and issues have a quantitative approach been used. Based on the theoretical frame of reference has the form of surveys created.

In this paper, generic reference in a collection of juridical texts is examined, with focus on third person singular pronouns. The object of the study is to find out which generic pronouns occur in the material along with their relative distribution, but also to display further use patterns and to offer plausible explanations for these patterns. Another object is to evaluate whether the use of generic pronouns corresponds with language planners? recommendations for non-sexist language. The corpus studied consists of Rikspolisstyrelsens författnings­samling (?Statute Book of the Swedish National Police Board?), comprising 172 documents written between 1974 and 2009.The study is divided into two parts.

Catecholamines are stress hormones that are produced and released by a rare tumor called pheochromocytoma. This tumor can cause hypertension which if undiagnosed and untreated leads to death. Since good therapy is available, it is important to find the tumor in time. The most common way to diagnose the tumor is measurement of the biochemical markers; catecholamines and their metabolites, methylated catecholamines.After observation that almost all normetanephrine results for women were higher than the upper reference limit and therefore pathological, the accuracy of the present reference intervals was questioned. Therefore new reference intervals for both urinary catecholamines and methylated catecholamines were developed by analysis of 46 samples using HPLC.

 Genotyping can be used to link genetic variation among individuals to certain diseases or conditions. Some known disorders and states that are dependent on single nucleotide polymorphism (SNPs) are lactose intolerance, venous thrombosis, hereditary hemochromatosis and the difference in sensibility among people to metabolise drugs.In this project a new kit, TaqManÒ Sample-to-SNP KitÔ for extraction of DNA and preparation of the extract for genotyping with real-time PCR and allelic discrimination, was evaluated. QIAamp® DNA Blood Biorobot® MDx Kit was used as the reference method.The purpose of the comparison was to find a method that makes DNA extraction from blood samples cheaper and faster, but with the same reliability as the reference procedure.The results of the evaluation showed a complete agreement of the genotype results between the methods tested, which means that the new method was as reliable as the reference method. The costs of reagents and material would be reduced with 52% if the new method is adopted, that alone would result in a cost reduction of 144 000SEK a year with a sample volume of 650 samples/month. The time for DNA extraction would also be reduced with the new procedure. .

The web is a constantly growing medium that presumably plays an increasing role in public library reference services. In order to provide high quality reference service the librarians need to be able to master this medium. Therefore it is interesting to get an understanding of how librarians actually use the web. The aim of this Master s thesis is to investigate what web search tools are used by public librarians in reference service. Furthermore, the aim is to get an understanding of how the librarians think about those tools and what background factors influence their selection of tools.