| 1. |
- Andersson, Håkan, et al.
(författare)
-
Träningslära för rullstolsåkning
- 2007
-
Bok (populärvet., debatt m.m.)abstract
- Spridd över hela världen finns det mycket kunskap om rullstolsträning, men det har inte tidigare funnits samlat någonstans. Samtidigt finns behov av ytterligare forskning inom området. Flera års litteraturstudier, erfarenhets – och datainsamling samt forskningsstudier har resulterat i denna bok. En stor del av utrymmet i boken ägnas åt styrketräning då detta är viktigt ur ett idrotts- rehabiliterings- och folkhälsoperspektiv. Detta gäller för såväl rullstolsidrottare som andra rullstolsbrukare. Författarkvartetten som skrivit boken är sammantaget etablerade inom såväl den paralympiska som den olympiska idrotten och också i forskarvärlden.
|
|
| 2. |
- Andersson, Kristin, et al.
(författare)
-
Seroreactivity to Cutaneous Human Papillomaviruses among Patients with Nonmelanoma Skin Cancer or Benign Skin Lesions.
- 2008
-
Ingår i: Cancer Epidemiology Biomarkers & Prevention. - 1538-7755. ; 17:1, s. 189-195
-
Tidskriftsartikel (refereegranskat)abstract
- Cutaneous human papillomaviruses (HPV) are common in nonmelanoma skin cancers, benign skin lesions, and healthy skin. Increased seroprevalences for cutaneous HPV among nonmelanoma skin cancer patients have been described. To determine whether antibodies to cutaneous HPV are related to presence of the virus and/or to skin disease, we collected serum and biopsies from both lesions and healthy skin from 434 nonimmunosuppressed patients (72 squamous cell carcinomas, 160 basal cell carcinomas, 81 actinic keratoses, and 121 benign lesions). Biopsies were analyzed for HPV DNA by PCR, cloning, and sequencing. Serum antibodies to the major capsid protein L1 of HPV 1, 5, 6, 8, 9, 10, 15, 16, 20, 24, 32, 36, 38, and 57 as well as to the oncoproteins E6 and E7 of HPV 8 and 38 were detected using a multiplexed fluorescent bead-based assay. Type-specific seroprevalence among patients with the same type of HPV DNA (sensitivity of serology) varied from 0% to at most 28%. Presence of HPV DNA and antibodies to the same HPV type was not significantly correlated. However, seropositivity to any HPV type was significantly more common among patients positive for HPV DNA of any HPV type (odds ratio, 1.90; 95% confidence interval, 1.55-2.34). Seroprevalences were similar among the different patient groups but was, for most HPV types, somewhat higher among squamous cell carcinoma patients than among basal cell carcinoma patients (P < 0.01). In conclusion, additional studies are required to clarify the biological meaning of seropositivity as a marker of cutaneous HPV infection and skin disease. (Cancer Epidemiol Biomarkers Prev 2008;17(1):189-95).
|
|
| 3. |
- Andersson, Patric, et al.
(författare)
-
Now you see it now you don't : The effectiveness of the recognition heuristic for selecting stocks
- 2007
-
Ingår i: Judgment and Decision Making. - : Soc Judgment & Decision Making. - 1930-2975 .- 1930-2975. ; 2:1, s. 29-39
-
Tidskriftsartikel (refereegranskat)abstract
- It has been proposed that recognition can form the basis of simple but ecologically rational decision strategies (Gigerenzer & Goldstein, 1996). Borges, Goldstein, Ortmann, & Gigerenzer (1999) found that constructing share portfolios based on simple name recognition alone often yielded better returns than the market index. We describe four studies with seven samples of participants from three countries (total N = 319) in which the returns of recognized and unrecognized shares from several stock markets were tracked over various periods of time. We find no support for the claim that a simple strategy of name recognition can be used as a general strategy to select stocks that yield better-than-average returns. However, there was some suggestion in the data that recognition performs better when the market is falling and worse when it is rising. A follow-up study indicated that the absence of an overall recognition effect could not easily be attributed to our reliance on student participants or smaller samples than Borges et al. (1999) had used. We conclude that, with respect to changes in value, selecting stocks on the basis of name recognition is a near-random method of portfolio construction that offers little, if any, benefit to the personal investor.
|
|
| 4. |
- Andersson, Thorbjörn, et al.
(författare)
-
Degradation of low density polyethylene during extrusion. : IV. Off-flavor compounds in extruded films of stabilized LDPE
- 2005
-
Ingår i: Journal of Applied Polymer Science. - : Wiley. - 0021-8995 .- 1097-4628. ; 95:3, s. 583-595
-
Tidskriftsartikel (refereegranskat)abstract
- This study was aimed at finding a correlation between the experienced off-flavor in packed foods and the presence of specific degradation products in LDPE pack-aging films. The possibility to trap degradation products by chemical reactions with scavengers, i.e., a zeolite additive or antioxidants, was investigated This would prevent degradation products from migrating to the polymer film surface and further into food in contact with the film. It was found that off-flavor noted in water packed in LDPE films depended on extrusion temperature and exposure time for the melt to oxygen, that is, the parameters that influence the contents of oxidation products that are able to migrate from the polymer film. It was also found that adsorption of oxidative degradation products in a zeolite additive or protection of LDPE by using antioxidants could prevent off-flavor in the packed product (water). However, the antioxidant should be selected with regard to extrusion temperature because thermal instability in the additive might jeopardize the intended effect. Multifunctional antioxidants seem to provide improved protection, the most effective one evaluated in this work being Irganox E201, i.e., vitamin E. Concentrations of oxidized degradation products are well correlated to the perceived off-flavor in the packed water. The highest correlation between off-flavor and oxidized components was found for ketones in the range of C 7 to C9 and aldehydes in the range of C6 to C9.
|
|
| 5. |
- Andersson, Thorbjörn, et al.
(författare)
-
Degradation of low density polyethylene during extrusion : III. Volatile compounds in extruded films creating off-flavor
- 2005
-
Ingår i: Journal of Applied Polymer Science. - : Wiley. - 0021-8995 .- 1097-4628. ; 95:4, s. 847-858
-
Tidskriftsartikel (refereegranskat)abstract
- This study was aimed at finding a correlation between the experienced off-flavor in packaged foods and the presence of specific degradation products in PE packaging films. The possibility to trap degradation products by chemical reactions with scavengers, that is, zeolites and maleic anhydride grafted LLDPE, were investigated. This trapping would prevent the degradation products from migrating to the polymer film surface and further into food in contact with the film. This work concludes that off-flavor in water packed in LDPE-films depends on extrusion temperature and the content of oxidation products in the polymer film. At lower extrusion temperatures, reactive additives to the LDPE material could control the release of off-flavor giving compo nents. Adsorbents, such as zeolites, which are able to adsorb degradation products, are effective also at higher extrusion temperatures. The amount of oxidized degradation products in the films correlated well to the perceived off-flavor in the packed water. The presence of aldehydes and ketones have a clear impact on the off-flavor. The best correlation between off-flavor and oxidized components were found for C7-C9 ketones, and aldehydes in the range of C5 to C8.
|
|
| 6. |
- Andersson, Thorbjörn, et al.
(författare)
-
The effects of selected aldehydes, ketones and carboxylic acids on off-flavours in water
- 2005
-
Ingår i: International journal of food science & technology. - : Wiley InterScience. - 0950-5423 .- 1365-2621. ; 40:9, s. 993-1004
-
Tidskriftsartikel (refereegranskat)abstract
- The effects of selected aldehydes, ketones and carboxylic acids on the development of off-flavours in water were studied. Combinations of hexanal, octanal, 2-octanone, 5-nonanone, hexanoic acid and nonanoic acid were rated by the off-flavour intensities they created in water at concentrations just at or below the threshold value of each analyte. Two different sensory panels evaluated the off-flavours induced by different combinations of the analytes. The observations of the two panels agreed well. From these studies, it could be concluded that aldehydes play an important role in the development of off-flavours intensities in water. There were synergistic effects between aldehydes and ketones, as well as between aldehydes and carboxylic acids. Small amounts of aldehydes and carboxylic acids – well below their respective threshold values – caused an increase in the off-flavour intensity. No synergism between ketones and carboxylic acids could be observed
|
|
| 7. |
- Atthoff, Björn, 1973-
(författare)
-
Tailoring of Biomaterials using Ionic Interactions : Synthesis, Characterization and Application
- 2006
-
Doktorsavhandling (övrigt vetenskapligt/konstnärligt)abstract
- The interactions between polymers and components of biological systems are an important area of interest within the fields of tissue engineering, polymer chemistry, medicine and biomaterials. In order to create such a biomimetic material, it must show the inherent ability to reproduce or elicit a biological function. How do we design synthetic materials in order to direct their interactions with biological systems?This thesis contributes to this research with aspects of how polymers interact with biological materials with the help of ionic interactions. Polyesters, biodegradable or not, may after a hydrolytic cleavage interact ionically with protonated amines by the liberated carboxylate functions. Amines are found in proteins and this fact will help us to anchor proteins to polyester surfaces. Another type of interaction is to culture cells in polymeric materials, i.e. scaffolds. We have been working on compliant substrates, knitted structures, to allow cell culture in three dimensions. A problem that arises here is how to get a high cell seeding efficiency? By working on the interactions between polymers, proteins and finally cells, it is possible to create a polarized protein membrane that allows for very efficient cell seeding, and subsequent three dimensional cell cultures. Finally a synthetic route to taylor interaction was developed. Here a group of polymers known as ionomers were synthesized. In our case ionic end groups have been placed onto biodegradable polycarbonates, we have created amphiphilic telechelic ionomers. Functionalization, anionic or cationic, changes the properties of the material in many ways due to aggregation and surface enrichment of ionic groups. It is possible to add functional groups for a variety of different interactions, for example introducing ionic groups that interact and bind to the complementary charge of proteins or on the other hand one can chose groups to prevent protein interactions, like the phosphorylcholine zwitterionomers. Such interactions can be utilized to modulate the release of proteins from these materials when used in protein delivery applications. The swelling properties, Tg, degradation rate and mechanical properties are among other things that will easily be altered with the choice of functional groups or backbone polymer.
|
|
| 8. |
|
|
| 9. |
- Lefohn, Aaron, et al.
(författare)
-
Beyond programmable shading (parts I and II)
- 2009
-
Ingår i: ACM SIGGRAPH 2009 Courses, SIGGRAPH '09; New Orleans, LA; United States; 3 August 2009 through 7 August 2009. - New York, NY, USA : ACM.
-
Konferensbidrag (refereegranskat)abstract
- There are strong indications that the future of interactive graphics programming is a more flexible model than today's OpenGL/Direct3D pipelines. Graphics developers need a basic understanding of how to combine emerging parallel programming techniques and more flexible graphics processors with the traditional interactive rendering pipeline. As the first in a series, this course introduces the trends and directions in this emerging field. Topics include: parallel graphics architectures, parallel programming models for graphics, and game-developer investigations of the use of these new capabilities in future rendering engines. This second course in the series Beyond Programmable Shading presents the state of the art in combining traditional rendering API usage with advanced task- and data-parallel computation to increase the image quality of interactive graphics. Leaders from graphics hardware vendors, game development, and academic research present case studies that show how general parallel computation is being combined with the traditional graphics pipeline to boost image quality and spur new graphics algorithm innovation. Each case study discusses the mix of parallel programming constructs, details of the graphics algorithm, and how the rendering pipeline and computation interact to achieve the technical goals. Presenters also discuss integrating a combination of GPU and CPU techniques for more efficient and flexible algorithms. The focus is on what currently can be done, how it is done, and near-future trends. Topics include: interactive realistic lighting, advanced geometry-processing pipelines, in-frame data structure construction, complex image processing, and rasterization versus ray tracing.
|
|
| 10. |
- Palosuo, Laura, 1976-
(författare)
-
Yellow Stars and Trouser Inspections : Jewish Testimonies from Hungary, 1920–1945
- 2008
-
Doktorsavhandling (övrigt vetenskapligt/konstnärligt)abstract
- This study analyzes narratives of individual Jewish experiences of discrimination and genocidal violence in Hungary during the period of 1920–1945. The aim is to increase our knowledge and understanding of the events through an investigation of survivor testimonies concerning anti-Jewish laws and the Holocaust. The main focus is on how survivors perceived the treatment to which they and their fellow Jews were exposed, and how they responded to the persecution they faced. Perceptions and responses are analyzed through multiple factors such as gender, age, social class, and geographical place.The period under investigation stretches from 1920, when the law of Numerus Clausus (a quota system influencing admission to universities) was introduced, until the end of the Second World War in early 1945. Focus is placed on the war years, especially on 1944, the year of German occupation and the fascist Arrow Cross rule. Experiences from the labour service system, the Jewish houses in Budapest, and the ghettos, as well as of hiding and resistance, are some of the recurring themes which are examined here. Extensive interviews, along with eyewitness reports and memoirs, form the empirical basis of the study.The results demonstrate the complexity of individual experiences during times of upheaval, and the importance of the above factors is evident within the testimonies. The survivors’ experiences greatly depended on gender, age, social class, geographical place, civil status, religious orientation, as well as “race”. However, the importance of the different factors changed over time. For instance, in the beginning of this period, discrimination had a direct impact on adult males, while children, women, and the elderly were indirectly affected. Furthermore, persons belonging to the upper classes could circumvent the anti-Jewish laws in various ways. Ultimately, differences in treatment decreased, according to the testimonies. Women, children, and the elderly also became victims, as did individuals from all social classes.
|
|
