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Single-component surface in binary self-assembled NaK nanoalloy clusters

Free metallic nanoalloy clusters created in a self-assembling process out of sodium and potassium mixed vapor have been studied by synchrotron-based photoelectron spectroscopy. The clusters are shown to consist of an alloy core surrounded by a surface layer containing only K in a range of conditions from K-rich to Na-rich nanoalloys. The size of the clusters as well as the fraction of the elements

Association Between Time From Stroke Onset and Fluid-Attenuated Inversion Recovery Lesion Intensity Is Modified by Status of Collateral Circulation.

BACKGROUND AND PURPOSE:In patients with acute stroke, the intensity of a fluid-attenuated inversion recovery (FLAIR) lesion in the region of diffusion restriction is associated with time from symptom onset. We hypothesized that collateral status as assessed by the hypoperfusion intensity ratio could modify the association between time from stroke onset and FLAIR lesion intensity.METHODS:From the A

A Theory of Distances in Software Engineering

[Context] Coordinating a software project across distances is challenging. Even without geographical and time zone distances, other distances within a project can cause communication gaps. For example, organisational and cognitive distances between product owners and development-near roles such as developers and testers can lead to differences in understanding and interpretation of the business re

Järnbrist och järnbristanemi är globala hälsoproblem

Iron deficiency and iron deficiency anemia are global health problems leading to deterioration in patients' quality of life and more serious prognosis in patients with chronic diseases. The cause of iron deficiency and anemia is ususally a combination of increased loss and decreased intestinal absorption and delivery from iron stores due to inflammation. Oral iron is first line treatment, but ofte

Full-thickness biopsy findings in chronic intestinal pseudo-obstruction and enteric dysmotility

Background and Aims: Small bowel manometry is increasingly used in the clinical investigation of patients with symptoms of intestinal motor dysfunction. Enteric dysmotility (ED) has been suggested as a new diagnostic term for patients with abnormal intestinal motor activity but no radiological signs of chronic intestinal pseudo-obstruction (CIP). Histopathological features of adult patients with E

A new species of Omphale Haliday 1833 (Hymenoptera: Eulophidae) from Brazil, parasitic on gall-midges on Croton floribundus Spreng (Euphorbiaceae)

A tritrophic relationship involving the plant Croton floribundus Spreng (Euphorbiaceae), an unidentified gall-midge belonging to either Clinodiplosis Kieffer 1895 or Alycaulus Rübsaamen 1916 (Diptera: Cecidomyiidae), and a new species of parasitic wasp belonging to Omphale Haliday 1833 (Hymenoptera: Eulophidae) is described. The gall and Omphale japii sp. nov., are described and illustrated. This

GWAS risk factors in Parkinson's disease : LRRK2 coding variation and genetic interaction with PARK16

Parkinson's disease (PD) is a multifactorial movement disorder characterized by progressive neurodegeneration. Genome-wide association studies (GWAS) have nominated over fifteen distinct loci associated with risk of PD, however the biological mechanisms by which these loci influence disease risk are mostly unknown. GWAS are only the first step in the identification of disease genes: the specific c

From spectral information to animal colour vision: experiments and concepts.

Many animals use the spectral distribution of light to guide behaviour, but whether they have colour vision has been debated for over a century. Our strong subjective experience of colour and the fact that human vision is the paradigm for colour science inevitably raises the question of how we compare with other species. This article outlines four grades of 'colour vision' that can be related to t

A comparison of new MC-adapted parton densities

A selection of the latest and most frequently used parton distribution functions (PDFs) is incorporated in Pythia8, including the Monte Carlo-adapted PDFs from the MSTW and CTEQ collaborations. This article examines the differences in PDFs as well as the effect they have on results of simulations and compare with data collected by the CDF experiment. Monte Carlo-adapted PDFs do a better job than l

Organisatoriska vägval -- En studie av Försäkringskassans förändringsarbete

Försäkringskassan är en central del av den svenska välfärdsstaten och för¬medlar mycket stora penningsummor. De förändringar som myndigheten har genomfört under senare tid i form av ny organisation och ändrade besl¬utsregler har varit omdiskuterade. Kritiker har pekat på bristande effektivi¬tet, försenade utbetalningar och hjärtlös regeltillämpning. Ett antal vägval har gjorts för att söka hitta lThe Swedish Social Insurance Agency is an important part of the Swedish welfare state. The Agency has recently made a number of major changes, such as establishing a new internal organization and reforming processes for decision making. Many of these changes have been controversial. Critics have complained that the Agency shows a lack of efficiency, has failed to make payments on time, and has bee

Pressure-dependent spin fluctuations and magnetic structure in the topologically frustrated spin glass alloy Y(Mn0.95Al0.05)(2)

Longitudinal field (LF = 110 G) muon spin relaxation (mu SR) has been used to investigate the pressure dependence (P < 4.5 kbar) of paramagnetic spin fluctuations in the spin glass alloy Y(Mn0.95Al0.05)(2) via observation of the mu(+) spin depolarization. External mechanical force is seen to counteract the Al-induced chemical pressure, fully delocalizing the Mn moment and altering the nature of th

HbA(1c) Measured in Stored Erythrocytes Is Positively Linearly Associated with Mortality in Individuals with Diabetes Mellitus

Introduction: Observational studies have shown that glycated haemoglobin (HbA(1c)) is related to mortality, but the shape of the association is less clear. Furthermore, disease duration and medication may modify this association. This observational study explored the association between HbA(1c) measured in stored erythrocytes and mortality. Secondly, it was assessed whether disease duration and me

Delays in assessment of patients with rheumatoid arthritis: variations across Europe

Objective The first 3 months after symptom onset represent an important therapeutic window for rheumatoid arthritis (RA). This study investigates the extent and causes of delay in assessment of patients with RA in eight European countries. Method Data on the following levels of delay were collected from 10 centres (Berlin, Birmingham, Heraklion, Lund, Prague, Stockholm, Umea, Vienna, Warsaw and Zu

Reaction Mechanism of Manganese Superoxide Dismutase Studied by Combined Quantum and Molecular Mechanical Calculations and Multiconfigurational Methods.

Manganese superoxide dismutases (MnSODs) are enzymes that convert two molecules of the poisonous superoxide radical into molecular oxygen and hydrogen peroxide. During the reaction, the manganese ion cycles between the Mn(2+) and Mn(3+) oxidation states and accomplishes its enzymatic action in two half-cycles (corresponding to the oxidation and reduction of O(2)(*-)). Despite many experimental and

Power to the People? : Decentralisation in India and Indonesia

Decentralisation is considered a potentially effective strategy for participatory development and delivery of assistance, particularly in the context of rural development. It contributes to reduction of inequality and poverty and, thus, promotes local democracy. India and Indonesia have considerable social and economic inequality and poverty. Though both countries have opted for devolving power to