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Provitamins and vitamins D2 and D3 in Cladina spp. over a latitudinal gradient: possible correlation with UV levels

Provitamin D2, vitamin D2 and vitamin D3 were identified in the thallus of a lichen species, Cladina arbuscula (Wallr.) Hale and W.L. Culb. The identification of vitamin D3 was supported by: (1) co-chromatography in both reverse and straight phase HPLC (high performance liquid chromatography), (2) ultraviolet absorption spectrum, and (3) molecular ion peaks demonstrated by ESI (electrospray ionisa

Biphasic Effect of Gingipains from Porphyromonas gingivalis on the Human Complement System.

Periodontitis is an inflammatory disease of the supporting structures of the teeth and is caused by, among other agents, Porphyromonas gingivalis. P. gingivalis is very resistant to killing by human complement, which is present in a gingival fluid at 70% of the serum concentration. We found that the incubation of human serum with purified cysteine proteases of P. gingivalis (gingipains) or P. ging

Leva med stroke - lära av erfarenheter

Popular Abstract in Swedish Denna avhandling handlar om hur personer, som insjuknat i stroke, beskriver sina upplevelser och erfarenheter av att leva med stroke och hur de lär sig hantera sin livssituation. Kunskaper om läroprocesser i en livsomställning, som insjuknande i stroke innebär, är betydelsefulla för att kunna förstå, möta och stödja människor i sådana situationer. Under de senaste årtioThis thesis concerns how people with stroke describe their experiences of life with stroke and how they learn to live with stroke. In the western world the interest for research in lived experiences has increased. This might be due to the higher rate of people with illness and lifelong diseases. The aim of the study is to analyze stories from persons with stroke of their lived experiences of life

Advantages and disadvantages of peripherally inserted central venous catheters (PICC) compared to other central venous lines: A systematic review of the literature

Background. The use of central venous lines carries a significant risk for serious complications and high economic costs. Lately, the peripherally inserted central venous catheter (PICC) has gained in popularity due to presumed advantages over other central venous lines. The aim of this systematic literature review was to identify scientific evidence justifying the use of PICC. Material and method

The origin of the Brunflo fossil meteorite and extraterrestrial chromite in mid-Ordovician limestone from the Garde quarry (Jamtland, central Sweden)

The Brunflo fossil meteorite was found in the 1950s in mid-Ordovician marine limestone in the Garde quarry in Jamtland. It originates from strata that are about 5 million years younger than similar limestone that more recently has yielded >50 fossil meteorites in the Thorsberg quarry at Kinnekulle, 600 km to the south. Based primarily on the low TiO2 content (about 1.8 wt%) of its relict chromite

Effects of kinship on growth and movements of brown trout in field enclosures

The effect of kinship on growth and use of space by individually PIT-tagged 1+ brown trout was studied for 11 weeks in eight stream enclosures. Each enclosure consisted of two sections, separated by a region containing PIT-detecting antennae, which enabled us to measure use of sections by all individuals. Two types of sibling groups were tested, a single sibling group, F1, consisting of four indiv

Personlig assistans i praktiken : Beredskap initiativ och vänskaplighet

Popular Abstract in Swedish Personlig assistans i praktiken Beredskap, initiativ och vänskaplighet Bakgrund, syfte och perspektivval Denna avhandling handlar om hur det går till att realisera personlig assistans, en insats för människor med omfattande funktionsnedsättningar. Serviceformen personlig assistans, som myntades av den amerikanska Independent Living –rörelsen i slutet av 1960 talet, uPersonal assistance is a user-directed service that was founded by a section of the disability movement, namely the American Independent Living movement, in the late 1960s. Today, the concept and ideology of personal assistance services (PAS) has spread worldwide, and constitutes a part of the support system for people with disabilities in many countries. The service differs from several other pub

Photofragmentation laser-induced fluorescence imaging in premixed flames

Two-dimensional measurements of primarily hydroperoxyl radicals (HO2) are, for the first time, demonstrated in flames. The measurements are performed in different Bunsen-type premixed flames (H-2/O-2. CH4/O-2, and CH4/air) using photofragmentation laser-induced fluorescence (PF-LIF). Photofragmentation is done by laser radiation at 266 nm, and the generated OH photofragments are probed through flu

Further characterization of the chloroplast grana margins: the non-detergent preparation of granal Photosystem I cannot reduce ferredoxin in the absence of NADP+ reduction

The chloroplast grana margins of spinach thylakoids were isolated by sonication and aqueous-two-phase partitioning and their electron transport properties examined. Photosystem II and I electron transport activities were measured and compared to the appressed and non-appressed grana core and stroma lamellae, respectively, as well as to whole thylakoids. The results show that the PS II complexes in

Partial Reduction of a Vanadia/Silica-Titania Catalyst with NH3 + NO at 473 K Studied by Electrical Conductance and ESR Measurements

Partial reduction of vanadia supported on silica-titania by NH3 + NO has been studied by electrical conductance and ESR measurements. The relationship between electrical conductance and degree of reduction was determined by oxidative and reductive titrations of V(IV) and V(V) species leached from catalyst samples which had been reduced to different levels. In situ monitoring of the steady-state V(

The Euro cash changeover process

This article describes and analyzes the Euro cash changeover process. The European Monetary Union, EMU, is a unique event in history, although other monetary unions were formed and existed long before. Still, this giant experiment makes it possible to study changes in the monetary environment from a unique and new position. The article tries to find factors that can help to explain the different p

A clinical evaluation of the Zygoma fixture: One year of follow-up at 16 clinics

Purpose. To evaluate treatment outcome with Zygoma fixtures (Nobel Biocare, Goteborg, Sweden) with regard to fixture survival, patient satisfaction, and function of prosthesis replacement. Materials and Methods: The treatment outcome of 76 patients treated with 145 Zygoma fixtures at 16 centers was evaluated. Patient's and dentist's evaluations of the functional and aesthetic outcome of the treatm

Improving Software Quality through Understanding and Early Estimations

Software quality is an important factor of a large and complex software system. Hence, there is a need for measuring and controlling quality. Software quality has, however, many different f actors and involves implicit expectations of the behaviour of the software. This thesis investigates two aspects of improving the software quality, in particular the reliability factor. The first part of this

The Pro12Ala polymorphism of the PPARG gene is not associated with the metabolic syndrome in an urban population of middle-aged Swedish individuals.

BACKGROUND: To determine if the common Pro12Ala polymorphism (rs1801282) of the peroxisome proliferator-activated receptor (PPARG) gene is associated with the metabolic syndrome (MetS) or with its individual components in middle-aged Swedish individuals. METHODS: MetS was defined according to the National Cholesterol Education Program/Adult Panel III (NCEP/ATP III), the International Diabetes Fede

eNOS Activation by HDL Is Impaired in Genetic CETP Deficiency.

Mutations in the CETP gene resulting in defective CETP activity have been shown to cause remarkable elevations of plasma HDL-C levels, with the accumulation in plasma of large, buoyant HDL particles enriched in apolipoprotein E. Genetic CETP deficiency thus represents a unique tool to evaluate how structural alterations of HDL impact on HDL atheroprotective functions. Aim of the present study was

Intimate partner violence against women, health effects and health care seeking in rural Vietnam

Background: Health effects and health care seeking were investigated among women in rural Vietnam exposed to physical and/or sexual violence from their partner in the past year. The study was conducted within the framework of the demographic surveillance site in Bavi District, Ha Tay Province in northern Vietnam. Methods: Face-to-face interviews based on a questionnaire developed by the WHO for us

The diel activity of crucian carp, Carassius carassius, in relation to chemical cues from predators

Chemical cues from piscivorous fish and prey alarm substances often cause rapid fright responses in prey. However little is known of how piscivore-related chemical cues affect prey behaviour over periods longer than a few hours. Here we have investigated how chemical cues from piscivorous northern pike, Esox lucius, affect habitat choice and diel activity of crucian carp, Carassius carassius, over

An Aspergillus nidulans β-mannanase with high transglycosylation capacity revealed through comparative studies within glycosidase family 5.

β-Mannanases are involved in the conversion and modification of mannan-based saccharides. Using a retaining mechanism, they can, in addition to hydrolysis, also potentially perform transglycosylation reactions, synthesizing new glyco-conjugates. Transglycosylation has been reported for β-mannanases in GH5 and GH113. However, although they share the same fold and catalytic mechanism, there may be d

Bile duct obstruction is associated with early postoperative upregulation of liver uncoupling protein-2 and reduced circulating glucose concentration in the rat

Objective: To evaluate whether upregulation of liver and muscle uncoupling protein 2 (UCP-2) is an acute phenomenon in obstructive jaundice and associated with secondary metabolic effects. Methods: Male Sprague-Dawley rats were divided into four groups bile duct ligated (BDL) and sham-operated pair-fed (PF), ad libitum fed (AL), and controls BDL. PF. and AL rats were further divided into subgroups