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Solving the subset sum problem with a nonideal biological computer

We consider the solution of the subset sum problem based on a parallel computer consisting of self-propelled biological agents moving in a nanostructured network that encodes the computing task in its geometry. We develop an approximate analytical method to analyze the effects of small errors in the nonideal junctions composing the computing network by using a Gaussian confidence interval approxim

Performance and characterization of the FinEstBeAMS beamline at the MAX IV Laboratory

FinEstBeAMS (Finnish-Estonian Beamline for Atmospheric and Materials Sciences) is a multidisciplinary beamline constructed at the 1.5 GeV storage ring of the MAX IV synchrotron facility in Lund, Sweden. The beamline covers an extremely wide photon energy range, 4.5-1300 eV, by utilizing a single elliptically polarizing undulator as a radiation source and a single grazing-incidence plane grating mo

Influence of potassium chloride on PAH concentration during soot formation studied using laser-induced fluorescence

Previous studies have shown that addition of potassium chloride (KCl) reduces soot concentration and primary particle size. To improve the understanding of this phenomenon, this work focuses on investigating the influence of KCl addition on formation of polycyclic aromatic hydrocarbons (PAHs), assumed to be precursors of soot. The method used is laser-induced fluorescence (LIF), for which differen

Frontiers of robotic colonoscopy : A comprehensive review of robotic colonoscopes and technologies

Flexible colonoscopy remains the prime mean of screening for colorectal cancer (CRC) and the gold standard of all population-based screening pathways around the world. Almost 60% of CRC deaths could be prevented with screening. However, colonoscopy attendance rates are affected by discomfort, fear of pain and embarrassment or loss of control during the procedure. Moreover, the emergence and global

Wafer-Scale Synthesis and Optical Characterization of InP Nanowire Arrays for Solar Cells

Nanowire solar cells have the potential to reach the same efficiencies as the world-record III-V solar cells while using a fraction of the material. For solar energy harvesting, large-area nanowire solar cells have to be processed. In this work, we demonstrate the synthesis of epitaxial InP nanowire arrays on a 2 inch wafer. We define five array areas with different nanowire diameters on the same

Preterm or early term birth and risk of autism

OBJECTIVES: Preterm birth has been linked with increased risk of autism spectrum disorder (ASD); however, potential causality, sex-specific differences, and association with early term birth are unclear. We examined whether preterm and early term birth are associated with ASD in a large population-based cohort. METHODS: A national cohort study was conducted of all 4 061 795 singleton infants born

Controlling Photoluminescence and Photocatalysis Activities in Lead-Free Cs2PtxSn1−xCl6 Perovskites via Ion Substitution

Lead-free halide perovskites have triggered interest in the field of optoelectronics and photocatalysis because of their low toxicity, and tunable optical and charge-carrier properties. From an application point of view, it is desirable to develop stable multifunctional lead-free halide perovskites. We have developed a series of Cs2PtxSn1−xCl6 perovskites (0≤x≤1) with high stability, which show sw

Predation risk and the evolution of a vertebrate stress response : Parallel evolution of stress reactivity and sexual dimorphism

Predation risk is often invoked to explain variation in stress responses. Yet, the answers to several key questions remain elusive, including the following: (1) how predation risk influences the evolution of stress phenotypes, (2) the relative importance of environmental versus genetic factors in stress reactivity and (3) sexual dimorphism in stress physiology. To address these questions, we explo

Automated EW corrections with isolated photons : t t¯ γ, t t¯ γγ and tγj as case studies

In this work we compute for the first time the so-called Complete-NLO predictions for top-quark pair hadroproduction in association with at least one isolated photon (tt¯ γ). We also compute NLO QCD+EW predictions for the similar case with at least two isolated photons (tt¯ γγ) and for single-top hadroproduction in association with at least one isolated photon. In addition, we complement our resul

Lifestyle factors in patients with rheumatoid arthritis—a cross-sectional study on two Scandinavian cohorts

Introduction: The risk for cardiovascular diseases and other comorbidities increases with the number of unhealthy lifestyle factors in the general population. However, information on the combined number of unhealthy lifestyle factors in people with rheumatoid arthritis (RA) is scarce. Objectives: To study lifestyle factors and the association between disease impact and two or more unhealthy lifest

Healthcare professionals’ experiences during the initial stage of the COVID-19 pandemic in the intensive care unit : A qualitative study

Background: The COVID-19 pandemic called for rapidly considerable changes in the healthcare system. Healthcare professionals from different departments within the hospital settings were enrolled in the emergency preparedness. This study, therefore, aimed to explore the healthcare professionals’ experiences attending the ICU-preparedness and caring for patients with COVID-19 during the initial stag

A highly invasive malaria parasite has expanded its range to non-migratory birds in North America

Parasite range expansions are a direct consequence of globalization and are an increasing threat to biodiversity. Here, we report a recent range expansion of the SGS1 strain of a highly invasive parasite, Plasmodium relictum, to two non-migratory passerines in North America. Plasmodium relictum is considered one of the world's most invasive parasites and causes the disease avian malaria: this is t

Molecular mapping of the PDS70 system : No molecular absorption signatures from the forming planet PDS70 b

Context. Determining the chemical properties of the atmosphere of young forming gas giants might shed light on the location their formation occurred and the mechanisms involved. Aims. Our aim was to detect molecules in the atmosphere of the young forming companion PDS70 b by searching for atmospheric absorption features typical of substellar objects. Methods. We obtained medium-resolution (R ≈ 507

DeepAtrophy : Teaching a neural network to detect progressive changes in longitudinal MRI of the hippocampal region in Alzheimer's disease

Measures of change in hippocampal volume derived from longitudinal MRI are a well-studied biomarker of disease progression in Alzheimer's disease (AD) and are used in clinical trials to track therapeutic efficacy of disease-modifying treatments. However, longitudinal MRI change measures based on deformable registration can be confounded by MRI artifacts, resulting in over-estimation or underestima

Imbrications of gender and religion in Nordic radical right populism

We examine here how issues of gender and religion are employed for ideological purposes in the discourses of radical right populist parties in Sweden and Finland. We begin with the complexity of these societies as paragons of social welfare and gender equality, within which Lutheran Christianity discreetly underpins their largely secularised character. Employing a poststructuralist methodological

Propensity, free energy contributions and conformation of primary : N -alcohols at a water surface

Atmospheric aerosols contain organic molecules that serve as cloud condensation nucleation sites and affect the climate. Several experimental and simulation studies have been dedicated to investigate their surface propensity, but the mechanisms that drive them to the water surface are still not fully understood. In this molecular dynamics (MD) simulation study, primary alcohols are considered as a

Six-pion amplitude

Within the framework of the massive nonlinear sigma model extended to the next-to-leading order in the chiral counting [for corresponding to the two(-quark)-flavor Chiral Perturbation Theory], we calculate the relativistic six-pion scattering amplitude at low energy up to and including terms . Results for the pion mass, decay constant, and four-pion amplitude in the case of (meson) flavors at are