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GRIND OR GAMBLE? AN EXPERIMENT ON EFFORT AND SPREAD SEEKING IN CONTESTS

We conduct a contest experiment to study if spread seeking and effort can be managed when participants can invest in increasing both the mean and the spread of an uncertain performance variable. Subjects are treated with different prize schemes and in accordance with theory, we observe higher investments in spread for the winner-take-all scheme. Both types of investments can be controlled with a t

The leukocyte complexity and mutational landscape of periampullary adenocarcinoma. Morphology matters.

Background: Periampullary adenocarcinomas are a heterogenous group of tumours with poor prognosis that hasnot improved considerably the last decades. Tumour morphology, i.e. intestinal type (I-type) or pancreatobiliarytype (PB-type), has been demonstrated to be a more relevant prognostic factor than anatomical origin. Tumourinfiltrating immune cells are vital in shaping the natural progress of canBackground: Periampullary adenocarcinomas are a heterogenous group of tumours with poor prognosis that hasnot improved considerably the last decades. Tumour morphology, i.e. intestinal type (I-type) or pancreatobiliarytype (PB-type), has been demonstrated to be a more relevant prognostic factor than anatomical origin. Tumourinfiltrating immune cells are vital in shaping the natural progress of can

Strategies for studying bacterial adhesion in Vivo

The ultimate goal of studies on microbial adhesion is to understand what molecular interactions between the host and microbe occur in vivo and the impact of these interactions on disease processes. With this goal in mind, the problem can be approached at four levels. At the biochemical level, the host receptors at the relevant colonization site are identified; at the cell biology level, consequenc

VLA cm-wave survey of young stellar objects in the Oph A cluster : Constraining extreme UV- And X-ray-driven disk photoevaporation: A pathfinder for Square Kilometre Array studies

Observations of young stellar objects (YSOs) in centimeter bands can probe the continuum emission from growing dust grains, ionized winds, and magnetospheric activity that are intimately connected to the evolution of protoplanetary disks and the formation of planets. We carried out sensitive continuum observations toward the Ophiuchus A star-forming region, using the Karl G. Jansky Very Large Arra

Estimated Substitution of Tea or Coffee for Sugar-Sweetened Beverages Was Associated with Lower Type 2 Diabetes Incidence in Case-Cohort Analysis across 8 European Countries in the EPIC-InterAct Study

Introduction: Beverage consumption is a modifiable risk factor for type 2 diabetes (T2D), but there is insufficient evidence to inform the suitability of substituting 1 type of beverage for another. Objective: The aim of this study was to estimate the risk of T2D when consumption of sugar-sweetened beverages (SSBs) was replaced with consumption of fruit juice, milk, coffee, or tea. Methods: In the

The impact of grade inflation on higher education enrolment and earnings

This study examines the consequences of grade inflation at the upper secondary education level on enrolment in higher education and earnings for Sweden. Although grade inflation is unfair and may imply inefficient allocation of human resources, current knowledge of grade inflation effects on individual outcomes is scarce. One explanation is probably the challenge of measuring and estimating causal

Arabidopsis thaliana alternative dehydrogenases : A potential therapy for mitochondrial complex i deficiency? Perspectives and pitfalls

Background: Complex I (CI or NADH:ubiquinone oxidoreductase) deficiency is the most frequent cause of mitochondrial respiratory chain defect. Successful attempts to rescue CI function by introducing an exogenous NADH dehydrogenase, such as the NDI1 from Saccharomyces cerevisiae (ScNDI1), have been reported although with drawbacks related to competition with CI. In contrast to ScNDI1, which is perm

Investigations of the kinetics and mechanism of reduction of a carboplatin pt(IV) prodrug by the major small-molecule reductants in human plasma

The development of Pt(IV) anticancer prodrugs to overcome the detrimental side effects of Pt(II)-based anticancer drugs is of current interest. The kinetics and reaction mechanisms of the reductive activation of the carboplatin Pt(IV) prodrug cis,trans-[Pt(cbdca)(NH3)2Cl2] (cbdca = cyclobutane-1,1-dicarboxylate) by the major small-molecule reductants in human plasma were analyzed in this work. The

Liver metastases from colorectal cancer. Different strategies and outcomes

Patients with colorectal liver metastases (CRLM) increasingly undergo liver resections. The belief is that the resection or ablation of a tumor, when possible, is the only possibility of a cure. The classical strategy is where the primary colorectal tumor is resected as the first intervention, followed by resection of the liver metastasis at a second stage. The liver-first strategy is where preope

Dipolar spin ice under uniaxial pressure

The magnetically frustrated spin ice family of materials is host to numerous exotic phenomena such as magnetic monopole excitations and macroscopic residual entropy extending to low temperature. A finite-temperature ordering transition in the absence of applied fields has not been experimentally observed in the classical spin ice materials Dy2Ti2O7 and Ho2Ti2O7. Such a transition could be induced

The Impact of the Socio-Demographic Characteristics of Complementary and Alternative Medicine Users in Serbia on OTC Drug Consumption

The Aim of this research is to analyze how the socio-demographic characteristics of users of Complementary and Alternative Medicine (CAM) in Serbia influence and impact their consumption of OTC drugs. Respondents and methods: The study employed the third edition of the National Health Survey of the Republic of Serbia, published in 2013, as a data source covering the Serbian population. The sample

Third-order double-achromat bunch compressors for broadband beams

Many state-of-the-art applications for linear accelerators, such as free-electron lasers (FELs) and plasma-wakefield accelerators (PWFAs), require small normalized emittances, and PWFAs in particular are very sensitive to transverse slice offsets along the beam. Dispersive systems, such as bunch compressors, can cause different chromatic aberrations, one of which yields transverse slice offsets. I

Lobaria pulmonaria in the southwestern Baltic area

Lungwort lichen, Lobaria pulmonaria (L.) Hoffm., was surveyed in the southwesternBaltic Area in 2016–2018. At each of the localities, the habitat ecology and lichen viability were investigated. A substantial decline was noted, particularly in Skåne. The commonest habitats for L. pulmonaria in southernmost Sweden are lime-maple and species-poor, oligotrophic beech forests, and the commonest substra

Auditor rotations and audit quality : A perspective from cumulative number of audit partner and audit firm rotations

PurposeThe purpose of this paper is to investigate the association between audit rotation – at the audit partner and audit firm level – and audit quality. As mentioned in the literature, audit rotation has several benefits, and one of them is it can bring a fresh look to audit tasks and subsequently improve audit quality. Moreover, audit itself can help a client to improve its financial reporting.

Electron-electron versus electron-phonon interactions in lattice models: Screening effects described by a density functional theory approach

We address the interplay of electron-electron (e-e) and electron-phonon (e-ph) interactions in the Hubbard- Holstein model, using a two-component density functional theory. Exchange-correlation potentials constructed via dynamical mean field theory for a D = ∞ Bethe lattice and analytically for an isolated site give a new perspective on e-ph screening of the e-e interactions and its effect on the

Multi-step enzymatic synthesis of 1,9-nonanedioic acid from a renewable fatty acid and its application for the enzymatic production of biopolyesters

1,9-Nonanedioic acid is one of the valuable building blocks for producing polyesters and polyamides. Thereby, whole-cell biosynthesis of 1,9-nonanedioic acid from oleic acid has been investigated. A recombinant Corynebacterium glutamicum, expressing the alcohol/aldehyde dehydrogenases (ChnDE) of Acinetobacter sp. NCIMB 9871, was constructed and used for the production of 1,9-nonanedioic acid from