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Steroid hormone measurements from different types of assays in relation to body mass index and breast cancer risk in postmenopausal women: Reanalysis of eighteen prospective studies

Epidemiological studies have examined breast cancer risk in relation to sex hormone concentrations measured by different methods: "extraction" immunoassays (with prior purification by organic solvent extraction, with or without column chromatography), "direct" immunoassays (no prior extraction or column chromatography), and more recently with mass spectrometry-based assays. We describe the associa

Risk of Second Primary Cancers in Multiple Myeloma Survivors in German and Swedish Cancer Registries.

We aimed at investigating the distribution and risk of second primary cancers (SPCs) in multiple myeloma (MM) survivors in Germany and Sweden to provide etiological understanding of SPCs and insight into their incidence rates and recording practices. MM patients diagnosed in 1997-2010 at age ≥15 years were selected from the Swedish (nationwide) and 12 German cancer registries. Standardized inciden

Possible Positive Selection for an Arsenic-Protective Haplotype in Humans

BACKGROUND: Arsenic in drinking water causes severe health effects. Indigenous people in the South American Andes have likely lived with arsenic-contaminated drinking water for thousands of years. Inhabitants of San Antonio de los Cobres (SAC) in the Argentinean highlands generally carry an AS3MT (the major arsenic-metabolizing gene) haplotype associated with reduced health risks due to rapid arse

Oblate deformation of light neutron-rich even-even nuclei

Light neutron-rich even-even nuclei, of which the ground state is oblately deformed, are looked for, examining the Nilsson diagram based on realisticWoods-Saxon potentials. One-particle energies of the Nilsson diagram are calculated by solving the coupled differential equations obtained from the Schrodinger equation in coordinate space with the proper asymptotic behavior for r -> infinity for both

Lipid soluble smoke particles up-regulate vascular smooth muscle ETB receptors via activation of mitogen activating protein kinases and NF-kappaB pathways.

Cigarette smoke is a strong risk factor for cardiovascular disease. However, the underlying molecular mechanisms that lead to cigarette smoke-associated cardiovascular disease remain elusive. With functional and molecular methods, we demonstrate for the first time that lipid soluble cigarette smoke particles (DSP) increased the expression of endothelin type B (ET(B)) receptors in arterial smooth m

Characterisation of a pre-cell hit detector to be used in single cell irradiation experiments at the Lund Nuclear Microprobe

This paper describes the characterisation of an ultra-thin silicon semicondoctor Delta E detector to be used as a pre-cell ion hit detector in single ion experiments on individual, living cells. The characteristics of interest for this specific application are the hit detection efficiency, which has to be close to 100% to enable bombardment with either a single ion or a counted number of ions, the

SLF:s höstexkursion till Skäckerfjällen 15-17 augusti 2008

Förra året beslutade SLF att 'adoptera' Skäckerfjällen i Jämtland, vilket innebär att föreningen avser att göra en fullständig inventering av dess lavar genom återkommande besök under ett antal år. Första besöket gjordes under höstexkursionen 2008 i mångahanda spännande miljöer, såsom kalkbranter, bäckraviner med gammal granskog, videsnår, snölegor och fjälltoppar med urberg. Exkursionen resultera

Accurate Localization and Pose Estimation for Large 3D Models

We consider the problem of localizing a novel image in a large 3D model. In principle, this is just an instance of camera pose estimation, but the scale introduces some challenging problems. For one, it makes the correspondence problem very difficult and it is likely that there will be a significant rate of outliers to handle. In this paper we use recent theoretical as well as technical advances t

Mercury in serum predicts low risk of death and myocardial infarction in Gothenburg women

Markers of mercury (Hg) exposure have shown both positive and negative associations with cardiovascular disease (CVD). We assessed the association between serum Hg (S-Hg) and risk of cardiovascular disease in a prospective population-based cohort, with attention to the roles of dental health and fish consumption. Total mortality, as well as morbidity and mortality from acute myocardial infarction

In search of credibility: Pupils’ information practices in learning environments

Introduction. We aim to create an in-depth understanding of how pupils in upper secondary school negotiate the credibility and authority of information as part of their practices of learning. Particular focus is on the use of user-created resources, such as Wikipedia, where authorship is collective and/or hard to determine. Method. An ethnographic study was conducted in an upper secondary school c

Immunotherapy against malignant brain tumors - of mice and men

Glioblastoma Multiforme (GBM) is the most abundant and most aggressive primary brain tumor in adults. Due to the infiltrative growth of the tumor, surgery will never be radical. Radiation and chemotherapy only marginally improve the poor prognosis due to the ability of the GBM to develop resistance towards these treatments. Therefore it is of great importance to find new efficient treatment modali

Microchannel Acoustophoresis does not Impact Survival or Function of Microglia, Leukocytes or Tumor Cells.

The use of acoustic forces to manipulate particles or cells at the microfluidic scale (i.e. acoustophoresis), enables non-contact, label-free separation based on intrinsic cell properties such as size, density and compressibility. Acoustophoresis holds great promise as a cell separation technique in several research and clinical areas. However, it has been suggested that the force acting upon cell

Massive MIMO performance evaluation based on measured propagation data

Massive MIMO, also known as very-large MIMO or large-scale antenna systems, is a new technique that potentially can offer large network capacities in multi-user scenarios. With a massive MIMO system, we consider the case where a base station equipped with a large number of antenna elements simultaneously serves multiple single-antenna users in the same time-frequency resource. So far, investigatio

Floristic diversity in the transition from traditional to modern land-use in southern Sweden AD 1800-2008

We aim to provide a long-term ecological analysis of land-use and floristic diversity in the transition from traditional to modern land-use management in the time a.d. 1800-2008 in southern Sweden. We use the Regional Estimates of Vegetation Abundance from Large Sites (REVEALS) model to quantify land-cover changes on a regional scale at 20-year intervals, based on the fossil pollen record. Florist

Fixed and flexible: coexistence of obligate and facultative migratory strategies in a freshwater fish.

Migration is an important event in many animal life histories, but the degree to which individual animals participate in seasonal migrations often varies within populations. The powerful ecological and evolutionary consequences of such partial migration are now well documented, but the underlying mechanisms are still heavily debated. One potential mechanism of partial migration is between-individu