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In this article, we present the results from photoconductivity measurements in the infrared spectral region (3-10 mum) on ensembles of self-assembled InAs quantum dots embedded in a matrix of InP. In the spectral distribution of the photocurrent, peaks are observed which we interpret in terms of transitions from the dots' ground- and first-excited states to the conduction band of the dots/matrix.
Silurian bentonites from Sweden and the eastern Baltic are correlated using XRD analysis of sanidine composition. Identifying the same bentonite in different sections has constrained correlations between the conodont, graptolite and chitinozoan zonations. Three bentonites correlate the Cyrtograptus murchisoni Zone with the upper part of the Pterospathodus amorphognathoides Zone and both the Lower
INTRODUCTION: Endoscopic retrograde cholangiopancreatography (ERCP)-induced pancreatitis (EIP) provides an opportunity to study different pathophysiologic events early in the course of acute pancreatitis. AIMS: To investigate whether the leakage of pancreatic proenzymes (anionic trypsinogen), pancreatic protease activation (carboxypeptidase B activation peptide), cytokine response (interleukin [IL
OBJECTIVE: Recent studies have found an increased risk for both anxiety disorder and attention-deficit hyperactivity disorder (ADHD) in the adult relatives of children with ADHD in comparison with adult relatives of normal controls. Such findings may account for the high rates of comorbid anxiety found in children with ADHD, and they suggest a relationship between the two disorders. However, addit
Polyamines are essential for tumor cell growth, and the polyamine pathway represents an attractive target for cancer treatment. Several polyamine transport proteins have been cloned and characterized in bacteria and yeast cells; however, the mechanism of polyamine entry into mammalian cells remains poorly defined, although a role for proteoglycans has been suggested. Here, we show that the HIV-Tat
Bream Abramis brama) undergo ontogenetic diet shift from zooplankton to benthic macroinvertebrates, but the switching size may be highly variable. To unravel under what conditions bream are pelagic versus benthic foragers, we experimentally determined size-dependent foraging capacities on three prey types from the planktivory and benthivory niche: zooplankton, visible and buried macroinvertebrates
In Sweden, clear changes in the care of the elderly have occurred during the 1990s, with fewer people being provided public care, although greater efforts are now directed towards those most in need of help. Elderly people are cared for increasingly in other ways: by the family, by means of market-provided care, and by voluntary and informal means. Differences between municipalities are considerab
The Greenland Ice Core Chronology 2005 (GICC05) is a time scale based on annual layer counting of high-resolution records from Greenland ice cores. Whereas the Holocene part of the time scale is based on various records from the DYE-3, the GRIP, and the NorthGRIP ice cores, the glacial part is solely based on NorthGRIP records. Here we present an 18 ka extension of the time scale such that GICC05
Post-traumatic Stress Disorder (PTSD) is a syndrome de®ned by the intrusive reexperiencing of a trauma, avoidance of traumatic reminders, and persistent physiological arousal. PTSD is associated with high levels of comorbidity and may increase the risk for additional disorders over time. While controversies remain regarding the applicability of the PTSD criteria to very young children, it has prov
From an ecological point of view it is important to close nutrient cycles by recirculating mineral nutrients from the urban society back to agriculture and forestry, and thereby obtaining a sustainable resource utilisation. A part of this cycle is illustrated by irrigation of bioreactor landfill leachates on short rotation forests. This paper presents a budget for nutrients and heavy metals, begin
Contemporary value theory has been characterized by a renewed interest in the analysis of concepts like "good" or "valuable", the most prominent pattern of analysis in recent years being the socalled buck-passing or fitting-attitude analysis which reduces goodness to a matter of having properties that provide reasons for pro-attitudes. Here I argue that such analyses are best understood as metaphy
Production of polyhydroxyalkanoates (PHA) by an open mixed culture enriched in glycogen accumulating organisms (GAOs) under alternating anaerobic-aerobic conditions with acetate as carbon source was investigated. The culture exhibited a stable enrichment performance over the 450 day operating period with regards to phenotypic behavior and microbial community structure. Candidatus Competibacter pho
The aim of this study was to evaluate the usefulness of borrelia serology (Quick ELISA C6 Borrelia assay kit) as a diagnostic tool in cases of suspected neuroborreliosis. A retrospective patient material consisting of 124 paired serum and cerebrospinal fluid samples with a positive anti-borrelia antibody index (AI) using the IDEIA Lyme Neuroborreliosis test was compared with 124 Al-negative matche
This paper presents a novel strategy for aligning patterns created with nano-imprint lithography (NIL) and UV lithography, similar to a mix-and-match process, which allows for the fabrication of large and small features in a single layer of resist. The resin used to demonstrate this new imprinting scheme is SU-8, a very widely used negative photoresist. Rapid stamp manufacturing using ma-N 2405 ph
mmoxidation of toluene over the perovskites YBa2Cu3O6.1, YBa2Cu2CoO6.7 and YBaCuCoO4.9 was investigated at 400 °C. At low partial pressures of O2 benzonitrile was selectively formed, while CO2 was the main product at high pressures of O2. Systematic differences in activity were observed for the three phases and are related to the crystal contents of Cu and Co. At low O2 pressures, Cu-sites are act
Background. Many patients with heart failure have generalized wasting, referred to as cardiac cachexia. This leads to skeletal muscle wasting, impaired mobility, reduced functional capacity and poor prognosis. Patients with heart failure have symptoms that can affect their food intake, for example breathing difficulties, fatigue, nausea, loss of appetite, early feeling of fullness and ascites. The
