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Search for excited quarks in ep collisions at HERA

A search for excited quarks is performed using the full e(+/-)p data sample collected by the HI experiment at HERA, corresponding to a total integrated luminosity of 475 pb(-1). The electroweak decays of excited quarks q* -> q gamma. q* -> qZ and q* - qW with Subsequent hadronic or leptonic decays of the W and Z bosons are considered. No evidence for first generation excited quark production is fo

Genetic profiles of gastroesophageal cancer: combined analysis using expression array and tiling array-comparative genomic hybridization

We aimed to characterize the genomic profiles of adenocarcinomas in the gastroesophageal junction in relation to cancers in the esophagus and the stomach. Profiles of gains/losses as well as gene expression profiles were obtained from 27 gastroesophageal adenocarcinomas by means of 32k high-resolution array-based comparative genomic hybridization and 27k oligo gene expression arrays, and putative

Thrombosis in Children

Aims: The general objective was to further elucidate thromboembolic disease in children and thereby help improve the care of these patients. More specific aims were as follows: to determine what children are affected by thrombosis; to discern any gender or age differences related to thrombosis; to identify prothrombotic risk factors; to ascertain whether autoantibodies against coagulation proteins

Clinical effect of stereotyped B-cell receptor immunoglobulins in chronic lymphocytic leukaemia: a retrospective multicentre study

Background About 30% of cases of chronic lymphocytic leukaemia (CLL) carry quasi-identical B-cell receptor immunoglobulins and can be assigned to distinct stereotyped subsets. Although preliminary evidence suggests that B-cell receptor immunoglobulin stereotypy is relevant from a clinical viewpoint, this aspect has never been explored in a systematic manner or in a cohort of adequate size that wou

Effects of water gradients and use of urea on skin ultrastructure evaluated by confocal Raman microspectroscopy.

The rather thin outermost layer of the mammalian skin, stratum corneum (SC), is a complex biomembrane which separates the water rich inside of the body from the dry outside. The skin surface can be exposed to rather extreme variations in ambient conditions (e.g. water activity, temperature and pH), with potential effects on the barrier function. Increased understanding of how the barrier is affect

Enantioselective synthesis of anti-beta-amido-alpha-hydroxy esters via asymmetric transfer hydrogenation coupled with dynamic kinetic resolution

The asymmetric transfer hydrogenation of beta-amido-alpha-keto esters providing the corresponding anti-beta-amido-alpha-hydroxy esters via dynamic kinetic resolution is reported. The use of a commercially available, or simply prepared, chiral ruthenium catalyst results in good yields as well as high diastereoselectivities and enantioselectivities. (C) 2013 Elsevier Ltd. All rights reserved.

Promises, Rights and Claims

Abstract in Undetermined The paper argues that promise rights presuppose independently existing (if not pre-existing) claims. The argument relies on the Bifurcation Thesis, according to which all claims, and all rights, can be exhaustively divided into two categories: capacity based and exercise based.

Phylogeography and conservation genetics of the common wall lizard, Podarcis muralis, on islands at its northern range.

Populations at range limits are often characterized by lower genetic diversity, increased genetic isolation and differentiation relative to populations at the core of geographical ranges. Furthermore, it is increasingly recognized that populations situated at range limits might be the result of human introductions rather than natural dispersal. It is therefore important to document the origin and

The role of seniority-zero states in nuclear level densities

At low excitation energies seniority-zero states dominate the level density of K = 0 bands in deformed even even nuclei, while they play no role at higher excitation energies. We describe the level densities in a Fermi-gas model as well as in a combinatorial level-density model and compare to detailed experimental data for some rare-earth nuclei. An explanation is provided for recent observations

Neuroimmune Interactions of Enteric Neurons and Mast Cells: Friends or Foes?

Popular Abstract in Swedish Emotionell stress samt hårt fysiskt arbete reducerar blodflödet till tarmen. Om cirkulationen till tarmen är kraftigt reducerat under en längre period får tarmen syrebrist, den blir ischemisk. Vid ischemi bildas skadliga slaggprodukter vilka distribueras till andra organ när blodflödet ökar igen. Irritable bowel syndrome, IBS, är en vanlig mag-tarm sjukdom som man inte Psychological distress or physical strain lead to reduced blood flow in the intestine since other organs are prioritised. One aim of this thesis was to investigate how ischemia followed by reperfusion affects the large intestine and the enteric nervous system (ENS). To do so an experimental ischemia/reperfusion (I/R) model was set up using rat large intestine. In order to study how the ENS reacts

Flame Spread Modelling of Complex Textile Materials

Flame spread in textile materials was modelled using two different simulation programs: the semi-empirical area-based code ConeTools, and the computational fluid dynamics, CFD, code Fire Dynamics Simulator, FDS, (version 5). Two textile products developed within the EU-project Flexifunbar were selected for study. The two products show a large difference in composition and application area, one mat