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Context: Age-related reduction of serum testosterone may contribute to the signs and symptoms of aging, but previous studies report conflicting evidence about testosterone levels and male mortality. No large prospective cohort study has determined a possible association between serum estradiol and mortality in men. Objective: The main objective was to examine the association between serum testoste

Popular Abstract in Swedish Mer än 75 % av energianvändningen i världen kommer idag från förbränning av fossila bränslen, biobränslen och avfall. Trots att alternativa energikällor är på framfart kommer förbränning stå för den största andelen av världens energianvändning även de kommande decennierna. Tyvärr medför förbränning flera negativa konsekvenser, såsom ökad koldioxidhalt i atmosfären och uLaser-induced incandescence, LII, is a laser-diagnostic technique that can be used to measure the volume fraction and the sizes of soot particles suspended in a gas, such as within a combustion process or in its exhausts. The technique is based on the facts that the time-decay of the radiation from laser-heated soot particles is directly related to the particle size in the probed volume, and that

HAMLET is a protein-lipid complex that selectively kills tumor cells. In this thesis, we identified new mechanisms, whereby HAMLET initiates and executes tumor cell death. HAMLET targets several cellular compartments ranging from the plasma membrane to the nucleus. HAMLET rapidly binds to the plasma membrane of tumor cells and the resulting changes in membrane shape and lipid composition activate

Objective: The objective of this study was to compare the outcomes of antiretroviral therapy (ART) between hospital and health center levels in Ethiopia. METHODS: Medical records of 1709 ART patients followed for 24 months at 2 hospitals and 3 health centers in the Oromia region of Ethiopia were reviewed. Noted outcomes of ART were currently alive and on treatment; lost to follow-up (LTFU); transf

The photophysical properties of conjugated polymers (CPs) largely depend on the interactions between the CP and its environment. We present a study of two polymers with identical conjugated backbones, bare and insulated, that showed different fluorescence excitation modulation depth histograms. However, the polarization differences are not related to differences in conformation, as commonly believ

Bird brooches at Uppåkra have a changing biography, as grave gifts, pendants, and scrap metal. The association between bird brooches and birds of prey, and a male face to female jewellery opens questions of identy of the wearer and the male person in question. Following the bird brooches and the connotations of falconry decode both a social identiy and a lifestyle, expressed in the aestetics of th

In situations that require creative thinking, there is no well-known procedure for how to reach the goal, or the solution. Among other things, it is not clear how choices between outcomes are made, or when the search for a solution should terminate. The article focusses on the evaluation of solutions that are generated during the search. The general question concerns the standards according to whi

Long-term oxygen therapy (LTOT) improves the survival time in hypoxemic chronic obstructive pulmonary disease. Despite warnings about potential dangers, a considerable number of patients continue to smoke while on LTOT. The incidence of burn injuries related to LTOT is unknown. The aim of this study was to estimate the rate of burn injury requiring health care contact during LTOT.

Environmental factors are thought to play a major role in the development of rheumatoid arthritis. Because the use of ethanol is widespread, we assessed the role of ethanol intake on the propensity to develop chronic arthritis. Collagen type II-immunized mice were given water or water containing 10% (vol/vol) ethanol or its metabolite acetaldehyde. Their development of arthritis was assessed, as w

Objective: Oligoclonal bands (OBs) in electrophoresis of cerebrospinal fluid (CSF) are present in multiple sclerosis and here is investigated whether these also occur in experimental autoimmune encephalomyelitis (EAE). Material and methods: Experimental autoimmune encephalomyelitis was induced in 42 DA rats after immunization with rat spinal chord homogenate and the occurrence of OBs were detecte

Time-resolved absorption spectroscopy was used to study the femtosecond and picosecond time scale electron injection from the excited singlet and triplet states of Ru(dcbpY)(2)(NCS)(2) (RuN3) into titanium dioxide (TiO2) nanocrystalline particle film in acetonitrile. The fastest resolved time constant of similar to30 fs was shown to reflect a sum of two parallel ultrafast processes, nonergodic ele

Reactions of the triosmium cluster [HOs3(CO)(10)(eta(1):eta(1)-OC4H2CCH3)] with a series of aromatic aldehydes under mild conditions result in condensation of the ligand methyl group with the aldehyde C=O moiety to give typical aldol condensation products.

A nonionic lamellar phase was prepared using C10E3 in buffer solution at pH = 7.6. A suitable T4DNA concentration around 5 wt % was immobilized in a lamellar phase with 40 wt % C10E3. The mixed system was investigated at two temperatures, 25 and 5 degrees C by using cryo-fracture TEM direct imaging, fluorescence microscopy and small-angle X-ray scattering. The surprising results where obtained sho

This thesis analyses the tax treatment of foreign investment funds in the Netherlands. Investment funds subject to a special tax scheme are entitled to the reimbursement of withholding tax on the dividends they receive. In order to qualify for the special tax scheme, investment funds have to meet two requirements. The analysis in this thesis is twofold. Both the compatibility of the special tax

Dataskyddsförordningen, GDPR, ämnar att skydda personuppgifter genom att sätta den registrerades intressen är i fokus, samtidigt som lagen specifikt beaktar mikro-företag samt små och medelstora företags, SMEs, särskilda behov. Uppsatsen närmar sig denna problematik från ett perspektiv baserat på grundläggande rättigheter; problemformuleringen är hur mindre företags rättigheter och intressen kan bThe General Data Protection Regulation, GDPR, aims to provide protection of personal data which is centred on the data-subject, while at the same time categorically giving special consideration to the specific needs of micro, small and medium‑sized enterprises, SMEs. The paper approaches this conundrum from a fundamental rights angle, and tries to answer how the rights and interests of smaller bus

In December 2001, Martin Creed received the Turner Prize for his artwork Work No. 227: The lights going on and off (2000). A minimalist light installation, simplistic in its effectuation, yet complicated enough to hold questions about what art is and what role the institution plays in valuing and validating art. The purpose of this thesis is to conduct an investigation of critiques in newspaper ar