Search results

SiGe Esaki diodes have been realized by rapid thermal diffusion of phosphorous into an SiGe layer grown by ultra-high-vacuum chemical-vapor-deposition on an Si p(+)-substrate for the first time. The phosphorous-doped SiGe forms the n(+)-electrode, while heavily boron-doped Si0.74Ge0.26 and Si substrate is used for the p(+) electrode. The diodes show a peak current density of 0.18 kA/cm(2), a curre

Popular Abstract in Swedish Arbetare i gummiindustrin utsätts för ett stort antal kemikalier med hög giftighet. Tidigare forskning har visat att kemikalierna innebär en fara för hälsan. Gummiarbetarna har tidigare haft en ökad risk att drabbas av olika sjukdomar, t.ex. cancer, hjärtkärlsjukdomar och luftvägsbesvär, jämfört med allmänbefolkningen. Däremot vet man inte exakt vilka ämnen som är farliWorkers in the rubber industry have an increased risk of several diseases, such as airway disease, cancer and probably cardiovascular disease. The exposure is very complex; carbon disulfide (CS2) and polycyclic aromatic hydrocarbons (PAHs) being two of the contaminants. The general aim of this thesis was to find exposure-response relationships usable for risk assessments in the rubber industry. U

Recent magnetic-resonance work on Y-Z suggests that this species exhibits considerable motional flexibility in its functional site and that its phenol oxygen is not involved in a well-ordered hydrogen-bond interaction (Tang et al., submitted; Tommos et al., in press). Both of these observations are inconsistent with a simple electron-transfer function for this radical in photosynthetic water oxida

Kristaller av olika former och storlekar finns överallt omkring oss. Medan de flesta kristaller föredrar att växa lika mycket i alla riktningar, som bordssalt (natriumklorid) och diamant, finns det kristaller som bara föredrar att växa i vissa specifika riktningar. Som exempel på det sistnämnda, s.k. anisotropisk tillväxt, finns det kristaller som växer endimensionellt och bildar nålliknande formeWhile many crystals, both natural and artificial, grow isotropically, there are examples of crystals growing anisotropically. The aim of this theoretical study was to confirm the growth modes displayed by three different crystals, representing 3D, 2D and 1D structures. This was done by using energetic calculations with both molecular mechanics, with ReaxFF$_{ \textrm {SiO}}$ as the force field, an

I svensk rätt stadgas en plikt, eller tvång om man så vill, att ingå avtal på försäkringsrättens område. Ett försäkringsbolag får enligt 11 kap. 1 § försäkringsavtalslagen inte neka någon att teckna en personförsäkring som bolaget normalt tillhandahåller allmänheten när det har fått de uppgifter som behövs, såvida det inte finns särskilda skäl att neka försäkring med hänsyn till risken för framtidSwedish law stipulates a duty, or compulsion, to enter into a contract in the field of insurance law. An insurance company may not deny anyone to take out personal insurance which the company normally provides the public when it has received the required data, unless there are particular reasons to deny insurance with reference to the risk of future claims, the nature of the intended insurance or

Although advances in cardiopulmonary resuscitation have improved survival from cardiac arrest (CA), neurologic injury persists and impaired mitochondrial bioenergetics may be critical for targeted neuroresuscitation. The authors sought to determine if excellent cardiopulmonary resuscitation and postresuscitation care and good traditional survival rates result in persistently disordered cerebral mi

Purpose: To investigate the relative importance of spatial resolution and noise on the image quality of clinical radiographs. Methods: The spatial resolution and noise of fifteen digitised lumbar spine radiographs were altered with image processing. Three different MTF curves and three different Wiener spectra were combined into seven different combinations of spatial resolution and noise. These s

This paper seeks to investigate the ongoing debate and conflict about the awarding of the FIFA World Cup 2022 to Qatar. A conflict that circuit around discrimination and abuses of human rights in Qatar and the values that the world of football stands for. The purpose of this paper is to contribute with new research involving the positions of the actual participants of the championship, the nationa

The construction of a magnetron-based source for neutral metal vapors is presented. The first photoelectron spectroscopy experiments with the source using synchrotron radiation at MAX-lab, Sweden are described. Photoelectron spectra of atomic copper, silver, and nickel are reported with an 80 meV resolution for Cu and Ag, previously not achieved in experiments using synchrotron light. (c) 2006 Ame

Wind-abraded cobbles (ventifacts) and aeolian sand are known from the sandy-gravelly coastal areas of south-western Sweden, especially in association with raised deltas. Ventifacts are recorded on at least two different stratigraphic levels, on top of glaciofluvial sediment and/or on top of littoral deposits, while aeolian sand usually forms a surficial cover. The formation of ventifacts has usual

This study presents cross-sectional data on adjectival agreement in second-language (L2) learners of Norwegian with four different first languages (L1s). The target language has full noun phrase agreement between article, adjective and noun, and the source languages represent different agreement conditions, similar to or different from the target language. Sixteen learners participated in the studThis study presents cross-sectional data on adjectival agreement in second-language (L2) learners of Norwegian with four different first languages (L1s). The target language has full noun phrase agreement between article, adjective and noun, and the source languages represent different agreement conditions, similar to or different from the target language. Sixteen learners participated in the stud

OBJECTIVES: Untreated primary hyperarathyroidism (pHPT) is accompanied by an excessive morbidity in circulatory disorders, associated with blood pressure and diabetes. The aim of the present study was to further penetrate the impact of pHPT on glucose, urate, lipid and lipoprotein concentrations, known to be interrelated metabolic cardiovascular risk factors.DESIGN: Longitudinal study of patients

Popular Abstract in English Among the large variety of experiments performed in science, a common one is to pass a light beam through a sample, the object to be studied, and to study the outcomes of the light-sample interaction. Many light sources have been used for this purpose, like light bulbs and lasers. A modern light source used nowadays is the so-called storage ring. In the storage rings elSynchrotron radiation sources have greatly contributed to the progress in many fields of science. The development of the storage ring technologies have made possible to obtain very low emittance electron beams, which together with the use of undulators allow to guide a very high photon flux into a very small beam size required by the experiments. Development of sources has been accompanied with eq

Popular Abstract in Swedish Nobelpriset i fysiologi och medicin 1998 gick till tre forskare från USA som gjort forskningsinsatser för upptäckten av kväveoxid (NO) vilket är en viktig signalsubstans i våra kroppar. Upptäckten av att en så liten molekyl som NO har så många funktioner i kroppen anses som en av de mest överraskande i medicinhistorien. Redan 1876 började man använda nitroglycerin som eNitric oxide synthase (NOS) activity was studied in cytosolic and particulate fractions in reproductive organs from rabbit (uterus and vagina) and rat (uterus, vagina and cervix). NOS was found predominantly in cytosolic fractions in all tissues and the activity of NOS in both fractions was highly Ca2+ dependent. NOS activity in vagina and cervix were much higher (3-6-fold) than in the uterus. Est

Neural tissue transplantation has become an alternative treatment for Parkinson's disease (PD) and other neurodegenerative disorders. The clinical use of neural grafts as a source of dopamine for Parkinson's disease patients, although beneficial, is associated with logistical and ethical issues. Thus, alternative graft sources have been explored including polymer-encapsulated cells and nonneural c

Äganderätt är den mest långtgående civilrättsliga förfoganderätten till egendom som kan innehas. Före den 1 maj 2009 har det inte varit möjligt i Sverige att inneha enskild lägenhet med direkt äganderätt trots att detta utgör den vanligaste ägarformen för lägenheter i flertalet EU-medlemsstater. Motståndet mot ägarlägenhetsinstitutet har såväl varit juridiskt som bostadspolitiskt till sin karaktärOwnership to property is the most extensive legal right of disposal that can be possessed. Before the 1 of May 2009 it was not possible in Sweden to hold a direct ownership of a flat despite freehold flats (SW. “ägarlägenhet”) being the most common legal form of ownership to a flat in other EU-member states. The resistance towards this institute has been based on legal as well as political argumen