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Separation of excitonic and electron-hole processes in metal tungstates
Absorption, reflection and emission polarization spectra of CdWO4 crystals have been studied in the region 3.5-30 eV in order to distinguish the excitonic and electron-hole processes in the vicinity of the band gap. The following parameters have been defined from the Urbach tail study at 6-300 K: E-0 = 5 eV, sigma(0) = 0.31, homega = 70 meV (565 cm(-1)). Excitonic processes have been shown to domi
No association between the alpha2-macroglobulin (A2M) deletion and Alzheimer's disease, and no change in A2M mRNA, protein, or protein expression
A polymorphism consisting of a deletion near the 5' splice site of exon 18 on the alpha2-macroglobulin (A2M) gene (A2M-2) has been suggested to be associated with Alzheimer's disease (AD) in family-based studies. We studied the A2M-2 allele together with the ApoE alleles in a large series on patients with AD (n = 449) and age-matched controls (n = 349). Neuropathologically confirmed diagnoses were
In-beam gamma-ray spectroscopy of Cd-101
Excited states of Cd-101 were studied in the reaction Ni-58(Cr-50,2p alpha n)Cd-101. The NORDBALL array with a Neutron Wall and a Silicon Ball was employed for the detection of gamma-rays and evaporated particles, The level scheme of Cd-101 was significantly extended, Shell-model calculations were performed and the excited states were interpreted in terms of neutron particle and proton hole excita
Spectroscopy of neutron deficient Te-108
The neutron deficient nucleus Te-108 was studied in the Fe-54(Ni-58,2p2n) reaction. A detector system consisting of 4 Euroball cluster detectors, a charged-particle detector ball and a 16 element neutron multiplicity filter was used to detect the emitted particles and gamma rays. A new, significantly extended level scheme was constructed on the basis of gamma gamma-coincidence relations. Spin valu
Global Repolarization Sequence of the Right Atrium: Monophasic Action Potential Mapping in Healthy Pigs
Cooling augments contractile response to 5-hydroxytryptamine via an endothelium-dependent mechanism
The interaction between cooling and vasoactive substances, e.g. 5-hydroxytryptamine (5-HT), plays an important role in the pathophysiology of cold-induced vasospasm. Our objective was to study the effect of cooling on the 5-HT vascular response, classify the involved 5-HT receptors, and to analyze the role of the endothelium. Ring segments from the rat jugular vein, a preparation without alpha-adr
The need for oncogenetic counselling - Ten years' experience of a regional oncogenetic clinic
A monogenic inheritance, mainly seen as a dominant pattern, accounts for 5 - 10% of all cancer cases. The increased knowledge and identification of high-risk genes have led to a need for specialized cancer family clinic was the expression used by Eeles and Murday. The Oncogenetic Clinic at the University Hospital in Lund was started in 1993 and the authors' 10-year experience is summarized in this
A Hybrid Phase-based Single Frequency Estimator
The topic of low computational complexity frequency estimation of a single complex sinusoid corrupted by additive white Gaussian noise has received significant attention over the last decades due to the wide applicability of such estimators in a variety of fields. In this letter, we propose a computationally fast and statistically improved hybrid phase-based estimator that outperforms other recent
Measurement of lifetimes by laser-induced fluorescence and determination of transition probabilities of astrophysical interest in NdIII
Selective lifetime measurements by time-resolved laser-induced fluorescence spectroscopy for 5 levels belonging to the 4f(3)5d configuration of doubly ionized neodymium provide a first and useful experimental test of the relativistic Hartree-Fock calculations in this ion of astrophysical interest. As a consequence, the accuracy of the transition probabilities deduced in the present work is well as
Rhizospheric influence on soil respiration and decomposition in a temperate Norway spruce stand
Assessments of terrestrial carbon fluxes require a thorough understanding of links between primary production, soil respiration and carbon loss through drainage. In this study, stem girdling was used to terminate autotrophic soil respiration including rhizosphere respiration and root exudation in a temperate Norway spruce stand. Rates of soil respiration and dissolved organic carbon (DOC) formatio
Three Lectures on Modeling, Identification and Adaptive Control
How substantial are ultraviolet-B supplementation inaccuracies in experimental square-wave delivery systems?
Square-wave (SQW) ultraviolet-B (UV-B: 280–315 nm) radiation supplementation systems continue to be used in outdoor experimental locations due to the economically restrictive installation and maintenance costs, and technical expertise required to effectively operate more advanced modulated (MOD) delivery systems. However, continued yet contentious criticisms of SQW delivery systems risk creating p
Housing-related control beliefs and independence in activities of daily living in very old age
Control beliefs, i.e. a person's perceived control over his or her own behaviour, are important predictors of psychological functioning in old age. The aim of this study is to examine the mediating effect of housing-related control beliefs on the relationship between housing accessibility and independence in activities of daily living (ADL). Moreover, cross-national differences in five European co
A Calorimetry and Light Scattering Study of the Formation and Shape Transition of Mixed Micelles of EO20PO68EO20 Triblock Copolymer (P123) and Nonionic Surfactant (C12EO6)
The interaction between the nonionic surfactant C12EO6 and the poly(ethylene oxide)-poly(propylene oxide)-poly(ethylene oxide) triblock copolymer EO20PO68EO20 (P123) has been investigated by means of isothermal titration and differential scanning calorimetry (DSC) as well as static and dynamic light scattering (SLS and DLS). P123 self-assembles in water into spherical micelles at ambient temperatu
On the adaptive significance of stress-induced immunosuppression
We approach the field of stress immunology from an ecological point of view and ask: why should a heavy physical workload, for example as a result of a high reproductive effort, compromise immune function? We argue that immunosuppression by neuroendocrine mechanisms, such as stress hormones, during heavy physical workload is adaptive, and consider two different ultimate explanations of such immuno
Wind energy powers-that-be successor generation in globalization
After a historic introduction, today's wind power technology is reviewed on a systems level, with some details, and with some brave suggestions for wind technology 2030 when power electronics (PE) will be some 2000 GW. Eternal themes like "electricity storage" are avoided. Aspects of drive-trains in towers and collection grids in parks are concisely described in the paper's core, including: 1) a p
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Human milk contains S100B protein
The present study constitutes the first finding of the calcium-binding protein S100B and of its mRNA in human milk, as revealed by a quantitative immunoluminometric assay, by Western blot analysis and by reverse transcription-polymerase chain reaction (RT-PCR) assay followed by restriction enzyme digestion. The concentration of S100B in milk is markedly higher than that observed in other biologica
Ab initio calculations for intercombination and resonance lines in P II
Results from large scale, ab initio MCHF calculations are presented for the transition properties of the 3s2 3p2(3)P(J-)e{3s3p3, 3s2 3p3d, 3s2 3p4s} 5S2o and 3P2o intercombination and resonance lines in P II. The agreement with experiment is good, the systematic approach shows convergence and the agreement between different forms of the oscillator strength is excellent for the resonance lines.