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Distributed Dynamic Reinforcement of Efficient Outcomes in Multiagent Coordination and Network Formation

We analyze reinforcement learning under so-called "dynamic reinforcement." In reinforcement learning, each agent repeatedly interacts with an unknown environment (i.e., other agents), receives a reward, and updates the probabilities of its next action based on its own previous actions and received rewards. Unlike standard reinforcement learning, dynamic reinforcement uses a combination of long-ter

Cancer Cell Radiobiological Studies Using In-House-Developed α-Particle Irradiator.

An α-particle irradiator, enabling high-precision irradiation of cells for in vitro studies, has been constructed. The irradiation source was a (241)Am source, on which well inserts containing cancer cells growing in monolayer were placed. The total radioactivity, uniformity, and α-particle spectrum were determined by use of HPGe detector, Gafchromic™ dosimetry film, and PIPS(®) detector measureme

Mode 2 and the tension between excellence and utility: The case of a policy-relevant research field in Sweden

This paper investigates the impact of changing science policy doctrines on the development of an academic field, working life research. Working life research is an interdisciplinary field of study in which researchers and stakeholders collaborated to produce relevant knowledge. The development of the field, we argue, was both facilitated and justified by the, at the time dominant, science policy o

Optimizing agri-environment schemes for biodiversity, ecosystem services or both?

Agri-environment schemes (AES) have been introduced to mitigate negative environmental effects caused by increased agricultural intensification in Europe. However, there is still debate on whether currently available incentives are efficiently enhancing farmland biodiversity. Moreover, agri-environment schemes often lead to a yield reduction, which has been argued to potentially increase pressure

C-terminal peptides of tissue-factor pathway inhibitor are novel host defense molecules.

Tissue factor pathway inhibitor (TFPI) inhibits tissue factor-induced coagulation, but may, via its C-terminus, also modulate cell surface-, heparin-, lipopolysaccharide interactions as well as participate in growth inhibition. Here we show that C-terminal TFPI peptide sequences are antimicrobial against the Gram-negative bacteria Escherichia coli and Pseudomonas aeruginosa, Gram-positive Bacillus

Investigation of viewing procedures for interpretation of breast tomosynthesis image volumes: a detection-task study with eye tracking.

OBJECTIVES: To evaluate the efficiency of different methods of reading breast tomosynthesis (BT) image volumes. METHODS: All viewing procedures consisted of free scroll volume browsing and three were combined with initial cine loops at three different frame rates (9, 14 and 25 fps). The presentation modes consisted of vertically and horizontally orientated BT image volumes. Fifty-five normal BT im

Sox4 Is a Key Oncogenic Target in C/EBP alpha Mutant Acute Myeloid Leukemia

Mutation or epigenetic silencing of the transcription factor C/EBP alpha is observed in similar to 10% of patients with acute myeloid leukemia (AML). In both cases, a common global gene expression profile is observed, but downstream targets relevant for leukemogenesis are not known. Here, we identify Sox4 as a direct target of C/EBP alpha whereby its expression is inversely correlated with C/EBP a

Identifying with a process of change: A qualitative assessment of the components included in a smoking cessation intervention at antenatal clinics in South Africa

Introduction: previous research has suggested that pregnant women prefer a person-centred approach for smoking cessation interventions. However few studies have illustrated the mechanism through which such an approach has an influence on quitting or reduction rates among pregnant women in resource poor settings. Purpose: to explore the role of different components included in a smoking cessation i

Estimates of scattered electromagnetic fields

We present some general estimates of the scattered electromagnetic fields for a general bounded scattering domain Ω in the anisotropic materials setting. In particular, it is shown that the inline image - norm and sup norm of the scattered field in an arbitrary finite exterior domain Ωs is bounded by the H(curl,Ω) norm of the incident field. Moreover, several estimates of the traces of the scatter

Cancer cell exosomes depend on cell-surface heparan sulfate proteoglycans for their internalization and functional activity.

Extracellular vesicle (EV)-mediated intercellular transfer of signaling proteins and nucleic acids has recently been implicated in the development of cancer and other pathological conditions; however, the mechanism of EV uptake and how this may be targeted remain as important questions. Here, we provide evidence that heparan sulfate (HS) proteoglycans (PGs; HSPGs) function as internalizing recepto

Health-related quality-of-life and life satisfaction 6-15 years after traumatic brain injuries in northern Sweden

Objective: To describe health-related quality-of-life (HRQoL) and life satisfaction many years after a traumatic brain injury (TBI) and assess possible associations with variables related to the time of injury and follow-up and the individuals' self-appraisal of the impact of the TBI. Method: Sixty-seven individuals (18-65 years), on average 10 years post-injury, were interviewed. Data on HRQoL, u

Pi pi scattering in three flavor ChPT : ππ scattering in three flavour ChPT

We present the scattering lengths for the pi-pi processes in the three flavour Chiral Perturbation Theory (ChPT) framework at next-to-next-to-leading order. We then combine this calculation with the determination of the parameters from $Ke4 and the masses and decay constants and compare with the results of a dispersive analysis of pi-pi scattering. The comparison indicates a small but nonzero valu

Cell transplantation in Parkinson's disease: problems and perspectives.

PURPOSE OF REVIEW: We review recent experiments conducted using embryonic tissue and stem cell transplants in experimental models of Parkinson's disease. We also highlight the challenges which remain to be met in order for cell therapy to become clinically effective and safe. RECENT FINDINGS: The outcome of previous clinical transplantation trials was variable in terms of motor recovery. We discus

Restricted immunoglobulin constant heavy G chain genes in primary immunodeficiencies.

Some primary immunodeficiencies (PIDs) express low serum levels of antibodies. The constant heavy G chain (IGHG) genes, also representing Fc domains of gamma3, gamma1 and gamma2 on chromosome 14q32.3, genotyped by the alternative IgG subclass allotypes, found in four fixed IGHG haplotypes, designating four B cell variants, were identified by a competitive ELISA and double immunodiffusion. IGHG gen

Drug-induced torsades de pointes: a review of the Swedish pharmacovigilance database.

AIM: To describe spontaneously reported cases of torsades de pointes (TdP) in Sweden and to investigate if this adverse drug reaction (ADR) was labelled in the summary of product characteristics (SPC) for the drugs implicated. METHODS: Reported cases of TdP 1991-2006 were identified and evaluated with regard to drug use and other possible risk factor. RESULTS: Among a total of 61 788 ADRs, 88 case

Physical Bounds for Antennas Above a Ground Plane

Physical limitations of antennas above infinite perfect electric conductor (PEC) ground planes are determined using the stored electromagnetic energy. Stored energies are computed with the method of moments (MoM) and the image theory. Convex optimization is used to derive the G/Q ratio and Q-factor for a reference geometry and the results are compared for different antenna types.