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Search Results: 1 - 10 of 348 matches for " Olof Sundin "
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Webbaserad anv ndarundervisning: Ett forum f r f rhandlingar om bibliotekariers professionella expertis [Web Based User Education]
Olof Sundin
Human IT: Tidskrift f?r Studier av IT ur ett Humanvetenskapligt Perspektiv , 2005,
Abstract: This article investigates web-based user education, considering it as a forum where the shaping of librarians’ professional expertise is negotiated. By conveying a profession’s knowledge on the Web, it is possible to define and emphasise those “problems” that the profession is striving to solve. The aim of the article is to present various approaches to the expertise of university librarians as conveyed by the librarians’ pedagogical working methods. The empirical basis for the study is an analysis of 31 web-based guides to information seeking, available at Nordic higher education and research libraries.The content of the web-based user education is presented and discussed in terms of twelve recurrent themes. Then, four approaches to user education are characterised: a source-oriented approach, a behaviour-oriented approach, a process-oriented approach and a communication-oriented approach. The approaches convey different definitions of important concepts such as information, information seeking, and user, and a point of departure for this article is that these approaches have practical consequences for the user education.
Anv ndarundervisning inf r informationss kning i yrkeslivet: En kunskaps versikt [User Education for Information Seeking in Working Life]
Olof Sundin
Human IT: Tidskrift f?r Studier av IT ur ett Humanvetenskapligt Perspektiv , 2004,
Abstract: The present article is an analytical review of studies about user education (in both traditional and web-based form)aimed primarily at college and university students, and of studies about professionals' information seeking. A theoretical framework discussing the concepts of information, profession and professional identity form a critical background against which the mainly empirically oriented studies are presented. Librarians and nurses, two occupational groups with important similarities and differences, are used as examples of user groups in the study. A point of departure for this article is that user education and information seeking should be understood as socio-cultural practices. Thus, the symbolic value of professional information and its potential to create, sustain and alter power relations, identities and interests is underlined. The analysis of previous studies concludes in a number of research questions that are addressed in a presently ongoing research project about ICT-based information seeking in the transition from educational to occupational practice. The project aims to uncover how norms, values and expectations about information seeking and information literacy are formed within occupational groups, are mediated through user education and are appropriated or mastered by students for use in their working life.
Teaching information seeking
Louise Limberg,Olof Sundin
Information Research: an international electronic journal , 2006,
Abstract: Introduction. The article argues for a closer association between information seeking research and the practices of teaching information seeking. Findings are presented from a research project on information seeking, didactics and learning (IDOL) investigating librarians' and teachers' experiences of teaching information seeking. Method. Thirteen teachers and five librarians, teaching 12-19 year-old students in three schools, participated. Forty-five interviews were conducted over a period of three years. Analysis. The IDOL project adopted a phenomenographic approach with the purpose of describing patterns of variation in experiences. The findings were also analysed by way of relating them to four competing approaches to the mediation of information literacy. Results. A gap was identified between experiences of teaching content that focused on sources and order, and experiences of assessment criteria applied to students' work that focused on the importance of correct facts and the analysis of information. These findings indicate a highly restricted range of teaching contents when compared with the four theoretical approaches to the mediation of information literacy. Conclusion. Teaching information seeking might be enhanced by a wider repertoire of contents reflecting more varied theoretical understanding developed in information seeking research, particularly as regards the importance of content and context related to user perspectives.
Speaking of users: on user discourses in the field of public libraries
Ase Hedemark,Jenny Hedman,Olof Sundin
Information Research: an international electronic journal , 2005,
Abstract: Introduction. The aim of the study reported is to examine user discourses identified in the Swedish public library field. The following questions are posed: What user discourses can be found and what characterises them? How are users categorised and what does this categorisation imply? The departure point in this paper is that the ways users are categorised influence their information behaviour. Plausible consequences for the relation between the interest of the public library and the users are discussed. Method. The empirical focus of the paper is a discourse analysis with a starting-point in Ernesto Laclaus and Chantal Mouffes discourse theory. Analysis. Sixty-two articles from three established Swedish library journals are analysed through a model in four phases. These phases include designations of users, user categories, themes within which users are described and user discourses. Results. Four user discourses are revealed: a general education discourse, a pedagogical discourse, an information technology discourse and an information management discourse. Conclusion. The discourses hold both levels of idealizing and experience related rhetoric. The dominant general education discourse is based on a tradition of fostering and refining as well as educating the general public and thereby reproduces inequality between the user and the library.
Decreased defluorination using the novel beta-cell imaging agent [18F]FE-DTBZ-d4 in pigs examined by PET
Mahabuba Jahan, Olof Eriksson, Peter Johnstr?m, Olle Korsgren, Anders Sundin, Lars Johansson, Christer Halldin
EJNMMI Research , 2011, DOI: 10.1186/2191-219x-1-33
Abstract: [18F]FE-DTBZ-d4 was synthesized by alkylation of 9-O-desmethyl-(+)-DTBZ precursor with deuterated [18F]FE bromide ([18F]FCD2CD2Br). Radioligand binding potential [BP] was assessed by an in vitro saturation homogenate binding assay using human endocrine and exocrine pancreatic tissues. In vivo pharmacokinetics and pharmacodynamics [PK/PD] was studied in a porcine model by PET/computed tomography, and the rate of defluorination was quantified by compartmental modeling.[18F]FE-DTBZ-d4 was produced in reproducible good radiochemical yield in 100 ± 20 min. Radiochemical purity of the formulated product was > 98% for up to 5 h with specific radioactivities that ranged from 192 to 529 GBq/μmol at the end of the synthesis. The in vitro BP for VMAT2 in the islet tissue was 27.0 ± 8.8, and for the exocrine tissue, 1.7 ± 1.0. The rate of in vivo defluorination was decreased significantly (kdefluorination = 0.0016 ± 0.0007 min-1) compared to the non-deuterated analogue (kdefluorination = 0.012 ± 0.002 min-1), resulting in a six fold increase in half-life stability.[18F]FE-DTBZ-d4 has similar PK and PD properties for VMAT2 imaging as its non-deuterated analogue [18F]FE-DTBZ in addition to gaining significantly increased stability against defluorination. [18F]FE-DTBZ-d4 is a prime candidate for future preclinical and clinical studies on focal clusters of beta cells, such as in intramuscular islet grafts.Dihydrotetrabenazine [DTBZ], derived from the neuroactive pharmaceutical tetrabenazine, is a ligand for the vesicular monoamine transporter 2 [VMAT2] which is expressed primarily in cells associated with the regulation of neurotransmission. It is especially associated with the dopaminergic system, and [11C]DTBZ has previously been used to study, for example, aspects of dementia [1] and Parkinson's disease [2] in the clinic. High VMAT2 expression has also been found in insulin-producing beta cells in the endocrine islets of Langerhans, but not in the exocrine pancreas [3], and the
Present situation of easy-to-read organisations in some smaller countries : examples from Sweden, Norway, Denmark, Finland and Latvia
Sundin, Maria
BiD : Textos Universitaris de Biblioteconomia i Documentació , 2008,
Abstract: En este trabajo se compara la situación del movimiento para la lectura fácil en cinco países del norte de Europa: Suecia, Noruega, Dinamarca, Finlandia y Letonia. Se analiza la existencia y las características de las editoriales, las publicaciones periódicas y las organizaciones especializadas. Se describe el concepto de lectura fácil en cada país, los colectivos de personas a las cuales se dirige y el papel de los gobiernos y de las instituciones oficiales en su financiación. Se proponen estrategias para su desarrollo relacionadas con los colectivos objeto de atención, así como las características de redacción y presentación que requieren las publicaciones en este formato. Se recomienda más investigación en este área de lectura fácil y se propone como modelo el desarrollo del trabajo previo hecho por el movimiento a favor del lenguaje planer, movimiento internacional también relacionado con la lectura, que ha sido capaz de crear unas directrices internacionalmente aceptadas.The easy-to-read (ETR) movement in five northern European countries (Sweden, Norway, Denmark, Finland and Latvia) is compared. The existence and characteristics of ETR publishing companies, periodicals and specialised organisations are analysed. Furthermore, the following are described for each country: the concept of ETR; the groups it is aimed at; and the role of governments and official institutions in providing funding. Strategies for developing ETR are proposed, according to the target group. In addition, the styles of writing and presentation required by this type of publication are explained. More research is needed in this area. One model for ETR could be the projects that have been carried out by another reading-related international movement: the plain language movement, which has drawn up internationally accepted guidelines.
Situació actual d'organitzacions de lectrura fàcil en pa sos petits : exemples a Suècia, Noruega, Dinamarca, Finlàndia i Letònia
Sundin, Maria
BiD : Textos Universitaris de Biblioteconomia i Documentació , 2008,
Abstract: En este trabajo se compara la situación del movimiento para la lectura fácil en cinco países del norte de Europa: Suecia, Noruega, Dinamarca, Finlandia y Letonia. Se analiza la existencia y las características de las editoriales, las publicaciones periódicas y las organizaciones especializadas. Se describe el concepto de lectura fácil en cada país, los colectivos de personas a las cuales se dirige y el papel de los gobiernos y de las instituciones oficiales en su financiación. Se proponen estrategias para su desarrollo relacionadas con los colectivos objeto de atención, así como las características de redacción y presentación que requieren las publicaciones en este formato. Se recomienda más investigación en este área de lectura fácil y se propone como modelo el desarrollo del trabajo previo hecho por el movimiento a favor del lenguaje planer, movimiento internacional también relacionado con la lectura, que ha sido capaz de crear unas directrices internacionalmente aceptadas.The easy-to-read (ETR) movement in five northern European countries (Sweden, Norway, Denmark, Finland and Latvia) is compared. The existence and characteristics of ETR publishing companies, periodicals and specialised organisations are analysed. Furthermore, the following are described for each country: the concept of ETR; the groups it is aimed at; and the role of governments and official institutions in providing funding. Strategies for developing ETR are proposed, according to the target group. In addition, the styles of writing and presentation required by this type of publication are explained. More research is needed in this area. One model for ETR could be the projects that have been carried out by another reading-related international movement: the plain language movement, which has drawn up internationally accepted guidelines.
Imaging of Adrenal Masses with Emphasis on Adrenocortical Tumors
Anders Sundin
Theranostics , 2012,
Abstract: Because of the more widespread and frequent use of cross-sectional techniques, mainly computed tomography (CT), an increasing number of adrenal tumors are detected as incidental findings (“incidentalomas”). These incidentaloma patients are much more frequent than those undergoing imaging because of symptoms related to adrenal disease. CT and magnetic resonance imaging (MRI) are in most patients sufficient for characterization and follow-up of the incidentaloma. In a minor portion of patients, biochemical screening reveals a functional tumor and further diagnostic work-up and therapy need to be performed according to the type of hormonal overproduction. In oncological patients, especially when the morphological imaging criteria indicate an adrenal metastasis, biopsy of the lesion should be considered after pheochromocytoma is ruled out biochemically. In the minority of patients in whom CT and MRI fail to characterize the tumor and when time is of essence, functional imaging mainly by positron emission tomography (PET) is available using various tracers. The most used PET tracer, [18F]fluoro-deoxy-glucose (18FDG), is able to differentiate benign from malignant adrenal tumors in many patients. 11C-metomidate (11C-MTO) is a more specialized PET tracer that binds to the 11-beta-hydroxylase enzyme in the adrenal cortex and thus makes it possible to differ adrenal tumors (benign adrenocortical adenoma and adrenocortical cancer) from those of non-adrenocortical origin.
Introduction
Sundin, Jan
Hygiea Internationalis : an Interdisciplinary Journal for the History of Public Health , 2001,
Abstract:
Preface
Sundin, Jan
Hygiea Internationalis : an Interdisciplinary Journal for the History of Public Health , 2004,
Abstract:
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