Sök uppsatser och vetenskapliga publikationer

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978-87-635-0980-0 / Link / Hansen , Kaj Börge / 2007

978-1-4020-8517-8 / Link / Casini , Lorenzo / 2009

Uppsala universitet Hushålls- Och Kostvetenskap
978-1-84569-193-6 / Link / Fjellström , Christina / 2009

Uppsala universitet Hushålls- Och Kostvetenskap
978-91-633-3686-7 / Link / Fjellström , Christina / 2009

In what could be referred to as the post-modern condition, the act of teaching includes negotiation within a specific context. My interest lies in describing praxis in teaching, e.g. what teachers actually DO to promote the fostering of democratic members of society and what lies behind those actions. This paper explores concepts from philosophy/ethics which may be used for making visible the intentionality of activities teachers are involved in. The purpose is to find new ways of analysing and communicating teachers’ considerations for a professional praxis in an educational setting.
N/A / Link / Frelin , Anneli / 2005

Familial hyperparathyroidism (HPT), characterized by hypercalcemia and hypercalciuria, and familial benign hypocalciuric hypercalcemia (FHH) are the most common causes of hereditary hypercalcemia. The calcium-sensing receptor (CaR) regulates PTH secretion and renal calcium excretion. Heterozygous inactivating mutations of the gene cause FHH, whereas CaR gene mutations have not been demonstrated in HPT. In a kindred with 20 affected individuals, the hypercalcemic disorder segregated with inappropriately higher serum PTH and magnesium levels and urinary calcium levels than in unaffected members. Subtotal parathyroidectomy revealed parathyroid gland hyperplasia/adenoma and corrected the biochemical signs of the disorder in seven of nine individuals. Linkage analysis mapped the condition to markers flanking the CaR gene on chromosome 3q. Sequence analysis revealed a mutation changing phenylalanine to leucine at codon 881 of the CaR gene, representing the first identified point mutation located within the cytoplasmic tail of the CaR. A construct of the mutant receptor (F881L) was expressed in human embryonic kidney cells (HEK 293), and demonstrated a right-shifted dose-response relationship between the extracellular and intracellular calcium concentrations. The hypercalcemic disorder of the present family is caused by an inactivating point mutation in the cytoplasmic tail of the CaR and displays clinical characteristics atypical of FHH and primary HPT.
N/A / Link / Carling , Tobias / 2000

Uppsala universitet Statsvetenskap
N/A / Link / Krantz , Tobias / 2000

Uppsala universitet Statsvetenskap
N/A / Link / Krantz , Tobias / 1999

Uppsala universitet Statsvetenskap
N/A / Link / Krantz , Tobias / 1998

Uppsala universitet Geovetenskap
N/A / Link / Olsson , Gunnar / 2007

Uppsala universitet Kyrkohistoria
N/A / Link / Franzén , Ruth / 2008

Rates of colonization with enterococci with acquired resistance to vancomycin (vancomycin-resistant enterococci [VRE]) and ampicillin (ampicillin-resistant enterococci [ARE]) were determined by using fecal samples from 670 nonhospitalized individuals and 841 patients in 27 major hospitals. Of the hospitalized patients, 181 (21.5%) were carriers of ARE and 9 (1.1%) were carriers of VRE. In univariate analyses, length of hospital stay (odds ratio [OR], 4.6; 95% confidence interval [CI], 2.5 to 8.9) and antimicrobial therapy (OR, 4.7; 95% CI, 3.3 to 6.7) were associated with ARE colonization, as were prior treatment with penicillins (OR, 3.1; 95% CI, 1.8 to 5. 5), cephalosporins (OR, 2.9; 95% CI, 1.7 to 5.0), or quinolones (OR, 2.7; 95% CI, 1.5 to 4.7). In logistic regression analysis, antimicrobial therapy for at least 5 days was independently associated with ARE carriage (adjusted OR, 3.8; 95% CI, 2.6 to 5.4). Over 90% of the ARE isolates were fluoroquinolone resistant, whereas 14% of the ampicillin-susceptible Enterococcus faecium isolates were fluoroquinolone resistant. ARE carriage rates correlated with the use of fluoroquinolones (P = 0.04) but not with the use of ampicillin (P = 0.68) or cephalosporins (P = 0.40). All nine VRE isolates were E. faecium vanB and were found in one hospital. Seven of these isolates were related according to their types as determined by pulsed-field gel electrophoresis. Among the nonhospitalized individuals, the ARE carriage rate was lower (6%; P < 0.05), and only one person, who had recently returned from Africa, harbored VRE (E. faecium vanA). The absence of VRE colonization in nonhospitalized individuals reflects an epidemiological situation in Sweden radically different from that in countries in continental Europe where glycopeptides have been widely used for nonmedical purposes.
N/A / Link / Torell , Erik / 1999

Uppsala universitet Medicin
Many years of work, multiplex family collection and endless genotyping finally give fruit. The original aim cannot be lost. The aim is not only to identify mutations involved in susceptibility for systemic lupus erythematosus (SLE) but to elucidate the disease pathogenesis as well. After genetics comes the biology. We review our recent findings on the genetics of lupus, provide possible mechanisms for disease susceptibility and present some facts on the problematic of identifying susceptibility mutations for complex diseases in complex human populations.
N/A / Link / Alarcon-Riquelme , Marta E. / 2003

Uppsala universitet Tros- Och Livsåskådningsvetenskap
Rec. av Christer Sturmark, Personligt. Samtal med fritänkare (Fri tanke). Ordföranden i Humanisterna Sturmark intervjuar 24 ateister och fritänkare rörande personliga och existentiella frågor
N/A / Link / Stenström , Thure / 2009

Uppsala universitet Systematik Och Fylogeni
978-87-983961-3-0 / Link / Ryman , Svengunnar / 2008

Uppsala universitet Informationsteknik
Techniques for inferring a regular language, in the form of a finite automaton, from a sufficiently large sample of accepted and nonaccepted input words, have been employed to construct models of software and hardware systems, for use, e.g., in test case generation. We intend to adapt these techniques to construct state machine models of entities of communication protocols. The alphabet of such state machines can be very large, since a symbol typically consists of a protocol data unit type with a number of parameters, each of which can assume many values. In typical algorithms for regular inference, the number of needed input words grows with the size of the alphabet and the size of the minimal DFA accepting the language. We therefore modify such an algorithm (Angluin's algorithm) so that its complexity grows not with the size of the alphabet, but only with the size of a certain symbolic representation of the DFA. The main new idea is to infer, for each state, a partitioning of input symbols into equivalence classes, under the hypothesis that all input symbols in an equivalence class have the same effect on the state machine. Whenever such a hypothesis is disproved, equivalence classes are refined. We show that our modification retains the good properties of Angluin's original algorithm, but that its complexity grows with the size of our symbolic DFA representation rather than with the size of the alphabet. We have implemented the algorithm; experiments on synthesized examples are consistent with these complexity results.
3-540-33093-3 / Link / Berg , Therese / 2006

Tissue factor (TF) is a main initiator of the coagulation protease cascade. Control of the expression of this protein in monocytes is essential, since these cells are the only circulating blood cells responsible for TF expression. In this report we have used two human cell lines, arrested at different stages of monocytic differentiation, to study TF expression. The monoblastic cell line U-937 had a constitutive expression of TF surface protein and low TF mRNA levels detected by immunofluorescence or quantitative reverse transcriptase polymerase chain reaction respectively. The phorbol-12-myristate-13-acetate (PMA) was a potent enhancer of TF expression in U-937. Lipopolysaccharide (LPS) and tumor necrosis factor (TNF) had no effect on TF expression in U-937. The Mono Mac 6 cell line, with phenotypic features similar to that of mature monocytes, expressed lower basal levels of TF mRNA and surface TF antigen. However, in Mono Mac 6 cells TF expression was induced in response to LPS and TNF. These results indicate differences in basal and induced TF expression between U-937 and Mono Mac 6 cell lines.
N/A / Link / Tenno , Taavo / 1997

Uppsala universitet Pedagogik
91-646-1910-9 / Link / Frelin , Anneli / 2003

Uppsala universitet Pedagogik
The relationship between education and the economy is a basic component of the educational policy-making discourse. This article analyses the changes that occurred in the construction of this relationship in Sweden from 1930-2000. Based on a large sample of government committee reports, the paper investigates two explanatory hypotheses for the changes in the construction of the relationship between education and the economy: (1) the influence of structural cycles of economic development (as proposed by economic historian Lennart Schon) and (2) the influence of the international educational reform discourse as produced by organisations such as the Organisation for Economic Co-operation and Development (OECD). It is shown that economic cycles may have a certain influence in the beginning of the period studied, although later the empirical results do not fit the hypothesis derived from the cycle model. At the same time, there is a surprisingly strong degree of isomorphism between the Swedish and the international discourse throughout the entire period, although most actors do not realise this, or at least do not make it explicit.
N/A / Link / Waldow , Florian / 2008

In her thought-provoking article, Aneta Pavlenko approaches emotion and emotion-laden words in the bilingual lexicon from an impressive number of different perspectives. This is particularly welcome, since most models of linguistic structure do not account for emotional meanings in a systematic way. One exception worth mentioning, however, is Systemic Functional Linguistics (SFL; Halliday, 1985/1994) with its broad division of functions into the textual, ideational and interpersonal metafunctions. Whereas the textual metafunction is concerned with the flow of information and the ideational with the construction of experience, the interpersonal function is concerned with interaction between people including the sharing of feelings. Recently, this last aspect has been developed more on the basis of SFL within Appraisal theory (Martin and White 2005), where attitudinal meanings are divided into Affect (the construal of emotion into the frame I feel (very) __), Judgment (social/moral evaluation of people) and Appreciation (aesthetic evaluation of things). The theory has primarily been applied to the development of the expression of feeling and evaluation in student writing in schools, based on qualitative analysis of corpora. The framework has also recently been applied to other languages than English as in Folkeryd (2006), who shows how the expression of affect and other evaluative resources are used in various story genres by Swedish students in grades 5, 8 and 11. The expression of attitudinal meanings turned out to be a problem characteristic of low-achieving students. This study includes bilingual students but they are not focused on in the published work.
N/A / Link / Viberg , Åke / 2008

Uppsala universitet Vetenskapshistoria
Within the Republic of Letters the art of experiment led to immense reorientation and an extensive redrawing of the enlightened map of natural knowledge. This paper will investigate the formative period of the exact sciences from the late eighteenth to the nineteenth century when the persona of the experimentalist as a scientific expert was shaped. The paper focuses on Moritz Hermann Jacobi’s experimental knowledge derived from his modeling of an electro-magnetic self-acting machine and the social and epistemological problems of its integration into traditional academic life. His struggle to achieve academic recognition and credibility for his experimental work reflects not just his individual quandary, but important structural problems of the historical development of experimental knowledge traditions and science in what has been called the “second scientific revolution.”
N/A / Link / Sibum , H. Otto / 2003

Uppsala universitet Lingvistik
N/A / Link / Sperber , Ingrid / 2005

Uppsala universitet Humaniora Och Religionsvetenskap
N/A / Link / Nyman , Magnus / 2008

3-7705-3815-3 / Link / Jönsson , Ann-Mari / 2003

Uppsala universitet Samhällsvetenskap
N/A / Link / Franzén , Mats / 2009

Uppsala universitet Samhällsvetenskap
978-91-44-00174-6 / Link / Vedung , Evert / 2009

Uppsala universitet Filosofiämnen
N/A / Link / Rider , Sharon / 2009

Uppsala universitet Signalbehandling
This thesis is concerned with reconstruction methods for ultrasonic imaging, primarily applied to non-destructive material inspection. In ultrasonic inspection, a specimen is insonified with pulses of high frequency ultrasound, which enters the material and propagates through it. A region with different acoustic impedance that of the surroundings, such as a cavity, crack or other defect will reflect and scatter the ultrasonic pulse. The echoes from these reflectors are gathered and aggregated to infer information about the scatters position and relative size.The work in this thesis is based on the Extended Synthetic Aperture Technique, a time domain method for estimating scattering strength of image elements in a discretized ultrasonic image. The method is further extended and improved in several ways in this thesis. One part of the extension is computational, dividing the reconstruction problem into smaller subproblems and solving them sequentially. The sum of the computational load to compute all subproblems is less than that of solving the large problem, especially as the method utilizes symmetries in the related subproblems. The next extension is also aimed at providing a less computationally demanding method. The reconstruction problem is limited to estimate only the most likely scatterer positions in the image. As long as the problem is sparse with only a few scatterers, most image elements can be discarded as their scattering strength is close to zero. The final extension presented here is instead aimed at improving lateral resolution, iteratively solving the reconstruction problem to minimize the reconstruction error.
978-91-506-1943-0 / Link / Wennerström , Erik / 2007