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A fundamental precept of geochemistry is that arsenate coordinates at mineral surfaces in a predominately bridging-bidentate fashion. We show that this is incorrect for the model system, arsenate adsorbed at the surface of goethite (alpha-FeOOH), using a combination of XRD, EXAFS, and IR spectroscopic results. We report the crystal structure of pentaamminecobalt(III) arsenate, which consists of mo
The spectrum of Eta Carinae and its ejecta shows slow variations over a period of 5.5 years. However, the spectrum changes drastically on a time scale of days once every period called the "spectral event". We report on variations in the narrow emission line spectrum of gas condensations (the Weigelt blobs) close to the central star during a spectral event. The rapid changes in the stellar radiatio
This paper addresses the question of why metal- deficient barium stars are not yellow symbiotic stars ( YSyS). Samples of ( suspected) metal-deficient barium ( mdBa) stars and YSyS have been collected from the literature, and their properties reviewed. It appears in particular that the barium nature of the suspected mdBa stars needs to be ascertained by detailed abundance analyses. Abundances are
We compare the generation and decay dynamics of charges and excitons in a model polymer semiconductor (MEH-PPV) in solution and drop-cast thin films, by recording the sub-ps transient complex conductivity using THz time-domain spectroscopy. The results show that the quantum efficiency of charge generation is two orders of magnitude smaller in solution (~10–5) than in the solid film (~10–3). The pr
Background and Purpose— Although stroke is strongly associated with hypertension, some individuals with normal blood pressure (BP) experience a stroke. This prospective study explored risk factors for stroke in subjects with normal BP. Methods— A total of 11 228 men and 17 174 women, 45 to 73 years old, were examined in a population-based cohort study. Normal BP was defined as BP <140/90 mm Hg an
Electron paramagnetic resonance (EPR) spectroscopy is one of the major techniques used to analyse the structure and function of the water oxidising complex (WOC) in Photosystem II. The discovery of an EPR signal from the S0 state has opened the way for new experiments, aiming to characterise the S0 state and elucidate the differences between the different S states. We present a review of the bioch
Background and Purpose - The causes of death of patients with cerebral venous thrombosis (CVT) have not been systematically addressed in previous studies. We aimed to analyze the causes and predictors of death during the acute phase of CVT in the International Study on Cerebral Vein and Dural Sinus Thrombosis (ISCVT) to identify preventable or treatable causes. Methods - ISCVT is a multinational,
Research shows that there are often problems with cooperation between rehabilitation professionals within vocational rehabilitation. The aim of this study was to describe employers' experiences of how cooperation between different rehabilitation professionals can be improved in a vocational rehabilitation planning process. Ten employers who had sent their employees to vocational rehabilitation at
Popular Abstract in Swedish Syftet med avhandlingen är att analysera den tekniska och organisatoriska ut¬vecklingen inom svensk banksektor under perioden 1975-2003 samt att se hur för¬ändringar i dessa två variabler påverkat produktivitetsutvecklingen. Utgångspunkten för analysen av den tekniska och organisatoriska förändringen är att det föreligger ett komplementärt förhållande mellan informationThe purpose of this thesis is to investigate the relation between technological and organizational change in the Swedish banking sector from 1975 to 2003. Besides analyzing the changes in these two variables the effects of the interaction on productivity changes in the sector are examined. The use of the concept of complementarity as a basis for analyzing the interaction between technological and
The effects of authentic nitric oxide (NO, 10(-6) M) and NO-donors such as sodium nitroprusside (SNP, 10(-5) M) and glyceryl trinitrate (GTN, 10(-4) M) on contractile force and free intracellular calcium level ([Ca2+],) were studied on precontracted with high potassium chloride (KCI, 70 mM) isolated rings of rat tail artery. The sensitivity of contractile myofilaments to Ca2+ was measured using ch
Urinary hexahydrophthalic acid (HHP acid) levels were determined in 20 workers occupationally exposed to hexahydrophthalic anhydride (HHPA) air levels of 11-220 micrograms/m3. The levels of HHP acid in urine increased rapidly during exposure and the decreases were also rapid after the end of exposure. The elimination half-time of HHP acid was 5 h, which was significantly longer than in experimenta
Diabetic cardiovascular autonomic neuropathy increases the risk of deterioration in renal function and is associated with increased mortality in patients with renal failure. Type 1 diabetic patients with long diabetes duration, matched for age (38 +/- 9 years) and diabetes duration (28 +/- 8 years) were studied regarding the association between cardiovascular autonomic nerve function and different
Background: Life expectancy in Sweden is currently one of the longest in the world. The population of Halland has the longest life expectancy in Sweden. Aim: Life expectancy in the province of Halland and Sweden as a whole during 1911-50 was studied and the findings are discussed in the light of local historical data. Method: A trend analysis of risk ratio of death and life expectancy for Halland
Popular AbstractDetta är en histora över teorier om ojämnt utbyte och deras upphovsmän. Den börjar med merkantilismen och Richard Cantillons jordvärdeteori, ger en kort beskrivning av tidig klassisk ekonomi och Gerald Fitzhugh. Bland det tidiga 1900-talets marxistiska ekonomer spelade ojämnt utbyte en roll i Otto Bauers tolkning av nationalistiska motsättningar, och i Henryk Grossmanns verk som enThis is a history of theories and theorists of unequal exchange. Starting with mercantilists and Richard Cantillon's theory based on land values, it briefly covers the early Classical economists and Gerald Fitzhugh. Among early 20th century Marxist economists, unequal exchange appeared in Otto Bauer's explanation of nationalist antagonism, and in Henryk Grossmann as countering the breakdown of cap
Sludge from gullies, on two types of streets with different traffic intensity, was investigated using two recommended EU methods for leachability testing of waste: a two-stage batch test and an up-flow percolation test. The main purpose of this investigation was to gain more knowledge about these leaching test methods to be able to make future decisions on the general applicability of the proposed
Changes of cellular metabolism are an integral property of the malignant potential of most cancer cells. Already in the 1930s, Otto Warburg observed that tumor cells preferably utilize glycolysis and lactate fermentation for energy production, rather than the mitochondrial oxidative phosphorylation dominating in normal cells, a phenomenon today known as the Warburg effect. Even though many tumor t
A balance between different experiences of occupations in everyday life is important for well-being. The study aim was to describe hassles and uplifts in everyday occupations among women on long-term sick-leave due to stress-related disorders. The sample consisted of 77 women and experiences were collected by the THU-5 instrument. The statements were analysed using quantitative content analysis. D
Aim Increased concentration of nitric oxide (NO) metabolites, nitrite and nitrate, in the urine is a strong indication of ongoing small intestinal, inflammation, which is a hallmark of the enteropathy of celiac disease (CD). It has previously been shown that children with symptomatic, untreated CD have increased levels of NO oxidation products in their urine. The aim of the present study was to in
A previous investigation of all 10 TLR-genes for associations with allergic rhinitis (AR) detected a number of significant SNPs in the TLR8 locus. The associations indicated that an accumulation of rare variants could explain the signal. The present study therefore searches for rare variants in the TLR8 region and also investigates the reproducibility of previous SNP associations.
Popular Abstract in Swedish Syftet med sjukgymnastik är att främja hälsa och välbefinnande och hjälpa människor till aktivitet och delaktighet vid sjukdom och skada. Professionen är påverkad av olika hälsoparadigm som hör samman med olika kunskapstraditioner. Det biomedicinska hälsoparadigmet har en dualistisk syn på människan, där normalitet ses som standard, och där syftet är att kurera och korrThe aim of physiotherapy is to promote health and well-being, and to facilitate increased activity and participation of individuals with diseases and injuries. The profession is influenced by different health paradigms which have emerged from different knowledge traditions. The biomedical paradigm of health adopts a dualistic view of mankind in which the normal is regarded as the standard, and the
