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Biogenicity of an Early Quaternary iron formation, Milos Island, Greece

A 2.0-million-year-old shallow-submarine sedimentary deposit on Milos Island, Greece, harbours an unmetamorphosed fossiliferous iron formation (IF) comparable to Precambrian banded iron formations (BIFs). This Milos IF holds the potential to provide clues to the origin of Precambrian BIFs, relative to biotic and abiotic processes. Here, we combine field stratigraphic observations, stable isotopes

Deciding for Others Reduces Loss Aversion

We study risk taking on behalf of others, both when choices involve losses and when they do not. A large-scale incentivized experiment with subjects randomly drawn from the Danish population is conducted. We find that deciding for others reduces loss aversion. When choosing between risky prospects for which losses are ruled out by design, subjects make the same choices for themselves as for others

Water use by Swedish boreal forests in a changing climate

1. The rising levels of atmospheric carbon dioxide concentration ([CO2]) and temperature have the potential to substantially affect the terrestrial water and energy balance by altering the stomatal conductance and transpiration of trees. 2. Many models assume decreases in stomatal conductance and plant water use under rising [CO2], which has been used as a plausible explanation for the positive g

Residual stresses, microstructure and tensile properties in Ti-6Al-4V friction stir welds

This paper reports the results of a systematic investigation of residual stresses as a function of welding speed in a set of Ti-6Al-4V friction stir welds. The investigation focuses on residual stress but links these data with microstructural information derived from micrographs and hardness measurements as well as mechanical testing results. Residual stresses were determined using energy dispersi

Signal intensities in (1)H-(13)C CP and INEPT MAS NMR of liquid crystals.

Spectral editing with CP and INEPT in (13)C MAS NMR enables identification of rigid and mobile molecular segments in concentrated assemblies of surfactants, lipids, and/or proteins. In order to get stricter definitions of the terms "rigid" and "mobile", as well as resolving some ambiguities in the interpretation of CP and INEPT data, we have developed a theoretical model for calculating the CP and

Robotic Force Estimation Using Motor Torques and Modeling of Low Velocity Friction Disturbances

For many assembly operations force control is needed, but force sensors may be expensive and add mass to the system. An alternative is to use the motor torques, though friction causes large disturbances. The Coulomb friction can be quite well known when a joint is moving, but has much larger uncertainties for velocities close to zero. This paper presents a method for force estimation that account

Association of PHB 1630 C > T and MTHFR 677 C > T polymorphisms with breast and ovarian cancer risk in BRCA1/2 mutation carriers: results from a multicenter study

BACKGROUND: The variable penetrance of breast cancer in BRCA1/2 mutation carriers suggests that other genetic or environmental factors modify breast cancer risk. Two genes of special interest are prohibitin (PHB) and methylene-tetrahydrofolate reductase (MTHFR), both of which are important either directly or indirectly in maintaining genomic integrity. METHODS: To evaluate the potential role of ge

Epiphytic Diatoms along Environmental Gradients in Western European Shallow Lakes

Diatom-based assays have been successfully associated worldwide with the tropic status of lakes. Several studies have demonstrated a correlation between epiphytic diatoms and nutrient load in shallow lakes and wetlands. We examine the relative importance of environmental factors in explaining the structure of epiphytic diatom communities in a set of Western European shallow lakes. The effects of l

Prospective Safety Surveillance of GH-Deficient Adults: Comparison of GH-Treated vs Untreated Patients.

Context:In clinical practice, the safety profile of GH replacement therapy for GH-deficient adults compared with no replacement therapy is unknown.Objective:The objective of this study was to compare adverse events (AEs) in GH-deficient adults who were GH-treated with those in GH-deficient adults who did not receive GH replacement.Design and Setting:This was a prospective observational study in th

Predicting institutional long-term care admission in dementia: a mixed-methods study of informal caregivers' reports

AimTo investigate agreement between: (1) expected reasons and actual reasons for admission of people with dementia according to informal caregivers; (2) scores on measurement instruments prior to admission and the actual reasons for admission according to informal caregivers. BackgroundTimely admission of people with dementia is a crucial issue. Information is highly warranted on whether informal

Agricultural development and the distribution of water resources in Kgatleng District, Botswana

During Botswana's four decades of high levels of growth the agricultural sector has lagged behind, with smallholder productivity being especially poor. This paper applies an equity perspective: its main claim is that one important explanation for the current lack of agricultural development is the unequal distribution of agricultural resources. It takes into account both the national institutional

A high intake of dietary fiber influences C-reactive protein and fibrinogen, but not glucose and lipid metabolism, in mildly hypercholesterolemic subjects.

PURPOSE: The aim of the study was to investigate how a diet high in dietary fiber, with several fiber sources included, modulates glucose and lipid metabolism and the inflammatory response in humans. METHODS: Subjects (n = 25) aged 58.6 (1.1) years (mean and SD) with a BMI of 26.6 (0.5) kg/m(2) and a total cholesterol (TC) of 5.8 (0.1) mmol/L (mean and SEM) were given a high fiber (HF) and low fib

Cryogels for Biotechnological Applications

Cryogels are formed in a semifrozen state when the solvent is frozen, but solutes are still soluble. The ice crystals are porogens and, upon thawing the system, pores appear where the frozen solvent was found earlier. Such gels have large pores, are elastic, and offer interesting opportunities in biotechnology. Cryogels with their large pores can meet demands that traditional chromatographic media

The Molecular Motor F-ATP Synthase Is Targeted by the Tumoricidal Protein HAMLET.

HAMLET (human alpha-lactalbumin made lethal to tumor cells) interacts with multiple tumor cell compartments, affecting cell morphology, metabolism, proteasome function, chromatin structure and viability. This study investigated if these diverse effects of HAMLET might be caused, in part, by a direct effect on the ATP synthase and a resulting reduction in cellular ATP levels. A dose-dependent reduc

Exposure to Workplace Bullying and Risk of Depression

OBJECTIVE: We examined the prospective association between self-labeled and witness-reported bullying and the risk of newly onset of depression. METHODS: Employees were recruited from two cohorts of 3196 and 2002 employees, respectively. Participants received a questionnaire at baseline in 2006 to 2007 with follow-up in 2008 to 2009 and 2011. New cases of depression were diagnosed in the follow-

The targeted killing judgment of the Israeli Supreme Court and the critique of legal violence

The targeted killing judgment of the Israeli Supreme Court has, since it was handed down in December 2006, received a significant amount of attention: praise as well as criticism. Offering neither praise nor criticism, the present article is instead an attempt at a ‘critique’ of the judgment drawing on the German-Jewish philosopher Walter Benjamin’s famous essay from 1921, ‘Critique of Violence’.

VariBench: A Benchmark Database for Variations

Several computational methods have been developed for predicting the effects of rapidly expanding variation data. Comparison of the performance of tools has been very difficult as the methods have been trained and tested with different datasets. Until now, unbiased and representative benchmark datasets have been missing. We have developed a benchmark database suite, VariBench, to overcome this pro