Search results
Filter
Filetype
Your search for "*" yielded 528347 hits
Variable surface composition and radial interface formation in self-assembled free, mixed Ar/Xe clusters
Using photoelectron spectroscopy, we demonstrate how the self-assembling process of cluster formation in an adiabatic expansion leads to radial segregation and layering as well as to variable surface composition for binary Ar/Xe clusters. The radial structuring can be qualitatively understood from the different interatomic bonding strengths of the two components.
Local and landscape effects of organic farming on butterfly species richness and abundance
1. Agri-environmental schemes (AES) are commonly adopted in Europe to reduce the loss of farmland biodiversity. These schemes have, however, been criticized as not fulfilling this goal, partly because their effectiveness is thought to differ depending on external factors such as landscape heterogeneity, the focal organism and scale of application. 2. We used one AES, organic farming, as a landscap
Proteomic analysis identifies candidate proteins associated with distant recurrences in breast cancer after adjuvant chemotherapy.
Breast cancer is a heterogenous disease and it is of importance to select patients with regard to different prognosis and treatment sensitivity to individualize treatment regimes. In this study we successfully adapted a protein extraction protocol from mRNA extracted tumor samples enabling two-dimensional gel electrophoresis (2-DE) analysis of samples previously analyzed by cDNA microarray. The ai
Hydroxyisohexyl 3-cyclohexene carboxaldehyde-known as Lyral (R): quantitative aspects and risk assessment of an important fragrance allergen
Hydroxyisohexyl 3-cyclohexene carboxaldehyde, also known as Lyral(R), is a fragrance ingredient identified as the cause of contact allergic reactions in 2-3% of eczema patients undergoing patch testing. Lyral(R) has been included in the standard patch test series in many clinics due to its importance as an allergen. It has been used without restrictions in cosmetic products, until now. In the pres
Quality improvement in electrocardiogram recording and interpretation
Projecting picosecond lattice dynamics through x-ray topography
A method for time-resolved x-ray diffraction studies has been demonstrated. As a test case, coherent acoustic phonon propagation into crystalline InSb is observed using a laser plasma x-ray source. An extended x-ray topogram of the semiconductor's surface was projected onto a high spatial resolution x-ray detector and acoustic phonons were excited by rapidly heating the crystal's surface with a fe
The evaluation of characters in lichenized families, exemplified with the alectorioid and some parmelioid genera
Important characters in the classification of the lichenized familyAlectoriaceae (Lecanorales) are discussed and evaluated. A few associated genera presently accommodated in the familyParmeliaceae (Lecanorales) are also discussed. Characters in the asci and hamathecium are of major importance, but structural characters such as general thallus organization and anatomy of cortical layers must also b
A virtual boundary method with improved computational efficiency using a multi-grid method
The flow around spherical, solid objects is considered. The boundary conditions on the solid boundaries have been applied by replacing the boundary with a surface force distribution on the surface, such that the required boundary conditions are satisfied. The velocity on the boundary is determined by extrapolation from the flow field. The source terms are determined iteratively, as part of the sol
Septic arthritis as a non-surgical complication in rheumatoid arthritis: relation to disease severity and therapy
More aggressive therapy including cytotoxic drugs is increasingly used in the treatment of rheumatoid arthritis (RA), and may confer increased susceptibility to infections. Septic arthritis is one infectious complication known to be overrepresented in RA. We studied the impact of disease severity and medication in a group of nine RA patients with proven septic arthritis, excluding those occurring
Relieving substrate limitation-soil moisture and temperature determine gross N transformation rates
A field experiment was designed with the objective to reveal the interactions between soil moisture, temperature, total, dissolved, and phosphate buffer extractable C and N, and microbial activity in the control of in situ gross N mineralization and immobilization rates in a deciduous forest. We had three alternative hypotheses to explain variations of the gross N transformations: 1) microorganism
Efficient simulation of adaptive optics technologies for the Euro50 telescope
An efficient adaptive optics (AO) simulation code was developed, which enables first-order simulations of extremely high-order systems. The Monte-Carlo-type code employs a sparse conjugate gradient algorithm for wavefront reconstruction, and a separation of spatial frequencies into two domains to economize on the number crunching. High-order multi-conjugate adaptive optics (MCAO) systems are there
Implantation of the human embryo: Research lines and models
Infertility is an increasing problem all over the world, and it has been estimated that 10 - 15% of couples in fertile age have fertility problems. Likewise induced unsafe abortion is a serious threat to women's health. Despite advances made in assisted reproduction techniques, little progress has been made in increasing the success rate during fertility treatment. This document describes a wide r
Mild hypothermia has minimal effects on the tolerance to severe progressive normovolemic anemia in swine
Background: The benefits of hypothermia during acute severe anemia are not entirely settled. The authors hypothesized that cooling would improve tolerance to anemia. Methods: Eight normothermic (38.0 +/- 0.5degreesC) and eight hypothermic (32.0 +/- 0.5degreesC) pigs anesthetized with midazolam-fentanyl-vecuronium-isoflurane (0.5% inspired concentration) were subjected to stepwise normovolemic hemo
Patterns of variation in morphological characters and isoenzymes in populations of Sphagnum capillifolium (Erh.) Hedw. and S. rubellum Wils. from two bogs in southern Sweden.
Coxsackie virus B antibodies are increased in HLA DR3-MICA5.1 positive type 1 diabetes patients in the Linkoping region of Sweden
Type 1 diabetes mellitus (T1DM) is an autoimmune disorder in which genetics and environmental factors play a role. Among the environmental factors, viruses (especially Coxsackie virus B [CBV]), and among genetic markers, human leukocyte antigen (HLA) DRB1*04-DQA1*0301-DQB1*0302 (DR4-DQ8) and DRB1*03-DQA1*0501-DQB1*0201 (DR3-DQ2), and major histocompatibility complex class I chain-related gene-A (M
Diabetic control in community care. The use of clinical evaluation and hemoglobin A1
Diabetic control was evaluated in 50 consecutive patients attending a community care centre, either by clinical criteria or by determination of glycosylated hemoglobin (HbA1). Two methods used for the determination of HbA1 were found to give similar results, namely ion exchange chromatography and agar gel electrophoresis. On a group basis, good correlation was observed between HbA1 samples analyse
Nurses' reflections about dementia care, the patients, the care and themselves in their daily caregiving
In this study the aim was, through interviews, to disclose 13 nurses' personal knowledge about the patients, themselves, and care provision, using a phenomenological-hermeneutic analysing method. Caring for people with severe dementia meant an intertwined life world emanating from making and doing together and the delicate interpretative work that the care provision required. The intertwined life
Ionic conductivity in physical networks of polyethylene-polyether-polyethylene triblock copolymers
A self-assembling ABA triblock copolymer complexed with lithium bis(trifluorometliylsulfonyl)imide (LiTFSI) salt showed ion conductivities (sigma) approaching 10(-5) S/cm at 20 degreesC. The block copolymer had endblocks of polyethylene (PE) and midblocks of poly(ethylene oxide-co-propylene oxide) (PEOPO) and formed physical networks with PEOPO chains interconnected by crystalline PE domains. Ther
The ground state and electronic spectrum of CUO - a mystery.
Results are presented from a theoretical study of the lower electronic states of the CUO molecule. Multiconfigurational wave functions have been used with dynamic correlation added using second order perturbation theory. Extended basis sets have been used, which for uranium were contracted including scalar relativistic effects. Spin–orbit interaction has been included using the state-interaction a