The aim of this thesis was to study librarians approach upon reference questions and available resources and also to find out if there is any connection between the nature of the reference question and the choice of resource. The purpose was also to give a deeper understanding of the reference work. Nine librarians were given ten reference questions and their reference work was tape recorded. The study was completed with seven interviews sent by email. Some of the reflections were translated under the headlines of form, subject, time, language and availability.

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.

The purpose of this Master?s thesis is to investigate how librarians solve difficult reference questions. The aim is to discuss the nature of reference work ? do librarians make conscious decisions regarding search strategies or do they rely principally on their instincts, or simply chance. The thesis is a qualitative study.

A sample of milk inoculated with S. aureus was treated with penicillin, and Antipen (a new commercial product containing penicillinase) was added. To another sample with S. aureus and penicillin, formic acid to pH 5 was added, and to yet another sample, a combination of formic acid and Antipen was added. Controls with no penicillin were treated in the same way.

To produce milk of good standard the feed for the animals kept for milk production is an important part in the work of quality. This makes it important to feed them with good forage, especially when feeding with silage. The process of making silage is very complex and requires a careful handling to be successful. The fundamental idea is to create an anaerobic environment in the herbage to favour the desirable micro-organisms, in this case the lactic acid bacteria. This environment is created by careful handlings were the importance is to pack the crop well and cover it as soon as possible to exclude oxygen.

Platelet aggregation is a major and common problem in blood samples from cats. This greatly affects the accuracy of counting of the platelets. Because of the difficulties in counting feline platelets, results for patients and reliable reference values for cat platelets are currently so inaccurate as to be almost useless in diagnosis of thrombocytopenia. In this study we used an effective method to prevent platelet aggregation. Blood was collected in CTAD test tubes and prostaglandin E1 was added to the blood sample.

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.

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.

The different characteristics of many food products, such as aroma and texture, changes during storage time and become undesirable. The reason is instabilities within the product which become prominent as the product ages. These changes in characteristics are quality losses caused by changes in the product?s intrinsic and extrinsic environment. The stability in UHT-milk and beverages similar to it have been studied in the past decades and a certain focus have been on age gelation which is a common defect in these type of products.

The purpose of this thesis is to study how some librarians working at a public library experience problems that can occur at the reference interview, slightly focusing on communication difficulties. Therefore I interviewed three librarians working at the reference desk on a daily basis. I chose to limit the study to public libraries and to the south of Sweden. My main question is: what difficulties can a librarian encounter during a reference interview and what can he/she do to treat these? In support of my main question I have three subordinated questions:What reasons can there be to a librarian not understanding a user?s information need?What methods are useful for a librarian to enhance the condition of the reference interview? What attitudes and qualities can be of use for the librarian at a difficult reference interview?For the collection of empirical data I chose to use semi-structured interviews.

The aim of this study was to establish knowledge about the most suitable substrate for cultivating different kinds of anaerobic beer spoilage bacteria in the brewing industry. During the study, two other aspects were investigated; if the sample volume affects the results and which anaerobic beer spoilage bacteria are present in the micro flora at the brewery. The method used was standard cultivation with four different substrates; Universal Beer Agar, Nachweismedium Bierschädliche Bakterien, Raka Ray and VLB S7-S. During the identification of bacteria in the micro flora, a method using PCR was used. None of the substrates showed a significant advantage over the others.

The aim of this report was to quantify the accumulation of carbon dioxide (CO2) and methane (CH4) in ice-covered lakes in winter (October-March) during three consecutive years, and to assess whether the concentrations of DIC and CH4, as well as the ratio DIC:CH4 differs between years and between lakes affected by clearcutting and untreated reference lakes. Water- and gas samples were collected from four boreal lakes (two affected by clearcutting and two untreated reference lakes) located in Västerbottens inland in spring. The lakes were found to accumulate on average 91, 55, and 84 mgCm-2d-1 during winters 2012-2013, 2013-2014, and 2014-2015, mostly originating from CO2. The concentrations of DIC (autumn and spring) were higher in the affected clear-cut lakes compared to reference lakes for all years, including the reference year (2012-2013) before clear-cutting. No such difference was found for CH4 or the ratio DIC:CH4.

The interest for power and energy measurement has greatly raised with todays increasing electricity prices and enviromental awareness. In the search for energy efficient solutions, the measurements are more complex due to increasing of non linear components. Harmonics and non sinusoidal voltages put high demands on sampling and filtering. Meanwhile, the price must be controlled so the customer still will find it interesting to invest in smaller plants. ITT W&WW asks for a robust, heat resistant power meter with compact dimensions to allow mounting inside the casing of a pump.

The aim of this study was to examine the social relationships between children and librarians during reference interviews. Using qualitative interviews with five children's librarians I illustrate attitudes and behaviours during a reference situation which take place in psychological, social and even in pedagogical contexts. The literature review comprises studies of the reference interview with children and youth, a description of interpersonal communication and finally social interaction and dialog between teachers and pupils. The main result of this study was the demonstration of a dichotomy in modes of interpersonal communication. In one mode, the social frame is emphasized.