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Risk of colorectal cancer associated with frequency of colorectal polyp diagnosis in relatives

BACKGROUND & AIMS: We aimed to evaluate the association of frequency of polyp diagnosis in relatives with the risk of overall and early-onset colorectal cancer (CRC).METHODS: We leveraged data from nationwide Swedish family cancer datasets (1964-2018) to calculate standardized incidence ratios (SIRs) for individuals with a family history of polyp by frequency of polyp diagnosis in family membe

Tracking and tracing audiovisual reuse : Introducing the Video Reuse Detector

The reuse and reappropriation of audiovisual content have been a recurring topic of research in the humanities, not least in studies of remix cultures. An open question that remains, however, is how artificial intelligence and machine learning may help scholars study the reuse of audiovisual heritage. In this article, we introduce the Video Reuse Detector (VRD) – a methodological toolkit for ident

The use of venous blood gas in assessing arterial acid−base and oxygenation status–an analysis of aggregated data from multiple studies evaluating the venous to arterial conversion (v-TAC) method

Background: Several methods exist to reduce the number of arterial blood gases (ABGs). One method, Roche v-TAC, has been evaluated in different patient groups. This paper aggregates data from these studies, in different patient categories using common analysis criteria. Research design and methods: We included studies evaluating v-TAC based on paired arterial and peripheral venous blood samples. B

Harnessing Deep Eutectic Solvents for Regioselective Polar Additions to α,β Unsaturated Ketones and Aldehydes

Advancing the use of air-sensitive polar organometallic Grignard and organolithium reagents under more environmentally benign conditions, here we report the addition of these reagents to a-b unsaturated ketones and aldehydes using the deep eutetic solvent (DES) choline chloride (ChCl): glycerol (Gly) (1:2), under air. Reactions occur at room temperature within seconds with excellent regioselective

Consensus palliative care referral criteria for people with chronic obstructive pulmonary disease

Objective People with advanced chronic obstructive pulmonary disease (COPD) have substantial palliative care needs, but uncertainty exists around appropriate identification of patients for palliative care referral. We conducted a Delphi study of international experts to identify consensus referral criteria for specialist outpatient palliative care for people with COPD. Methods Clinicians in the fi

Opioids for the palliation of symptoms in people with serious respiratory illness : a systematic review and meta-analysis

Background People living with serious respiratory illness experience a high burden of distressing symptoms. Although opioids are prescribed for symptom management, they generate adverse events, and their benefits are unclear. Methods We examined the efficacy and safety of opioids for symptom management in people with serious respiratory illness. Embase, MEDLINE and the Cochrane Central Register of

Flight activity and effort of breeding pied flycatchers in the wild, revealed with accelerometers and machine learning

Flight behaviours of birds have been extensively studied from different angles such as their kinematics, aerodynamics and, more generally, their migration patterns. Nevertheless, much is still unknown about the daily foraging flight activity and behaviour of breeding birds, and potential differences among males and females. The recent development of miniaturized accelerometers allows us a glimpse

Loneliness, social isolation, and health complaints among older people : A population-based study from the “Good Aging in Skåne (GÅS)” project

Purpose To explore associations between perceived loneliness, social isolation, and health complaints among older people. Methods 5804 participants from the Swedish population study “Good Aging in Skåne” were included. Structured interviews and questionnaires were used to assess perceived loneliness, social isolation, 30 somatic and mental-health related symptoms, socio-demographics, lifestyle, an

Information Thermodynamics and Fluctuations in Quantum Dots

In small systems with large fluctuations, the classical description of thermodynamics is no longer sufficient which has led to the development of stochastic thermodynamics. One important result from stochastic thermodynamics is that with measurement and feedback it is possible to use those fluctuations to extract work from a single heat bath coupled to the system. This is thanks to the connection

PSA : role in screening and monitoring patients with prostate cancer

The test used for early detection and monitoring of prostate cancer—prostate-specific antigen (PSA)—is one of the most accurate and frequently used tumor markers in medicine today. No tumor marker has had such a critical impact on early detection through stage-migration, and monitoring after treatment for prostate cancer as the blood test PSA. This chapter provides an overview of the PSA test and

Hot-Wall MOCVD for High-Quality Homoepitaxy of GaN : Understanding Nucleation and Design of Growth Strategies

Thick GaN layers with a low concentration of defects are the key to enable next-generation vertical power electronic devices. Here, we explore hot-wall metalorganic chemical vapor deposition (MOCVD) for the development of GaN homoepitaxy. We propose a new approach to grow high-quality homoepitaxial GaN in N2-rich carrier gas and at a higher supersaturation as compared to heteroepitaxy. We develop

Thermal conductivity of AlxGa1−xN (0≤x≤1) epitaxial layers

AlxGa1−xN ternary alloys are emerging ultrawide band gap semiconductor materials for high-power electronics applications. The heat dissipation, which mainly depends on the thermal conductivity of the constituent material in the device structures, is the key for device performance and reliability. However, the reports on the thermal conductivity of AlxGa1−xN alloys are very limited. Here, we pr

Mg segregation at inclined facets of pyramidal inversion domains in GaN:Mg

Structural defects in Mg-doped GaN were analyzed using high-resolution scanning transmission electron microscopy combined with electron energy loss spectroscopy. The defects, in the shape of inverted pyramids, appear at high concentrations of incorporated Mg, which also lead to a reduction in free-hole concentration in Mg doped GaN. Detailed analysis pinpoints the arrangement of atoms in and aroun

Electrical Tuning of Plasmonic Conducting Polymer Nanoantennas

Nanostructures of conventional metals offer manipulation of light at the nanoscale but are largely limited to static behavior due to fixed material properties. To develop the next frontier of dynamic nano-optics and metasurfaces, this study utilizes the redox-tunable optical properties of conducting polymers, as recently shown to be capable of sustaining plasmons in their most conducting oxidized

Young Age on Starting Prostate-specific Antigen Testing Is Associated with a Greater Reduction in Prostate Cancer Mortality : 24-Year Follow-up of the Göteborg Randomized Population-based Prostate Cancer Screening Trial

BACKGROUND: The risk of death from prostate cancer (PC) depends on age, but the age at which to start prostate-specific antigen (PSA) screening remains uncertain.OBJECTIVE: To study the relationship between risk reduction for PC mortality and age at first PSA screening.DESIGN, SETTING, AND PARTICIPANTS: The randomized Göteborg-1 trial invited men for biennial PSA screening between the ages of 50 a

Using skin temperature and activity profiles to assign chronotype in birds

Chronotypes describe consistent differences between individuals in biological time-keeping. They have been linked both with underlying variation in the circadian system and fitness. Quantification of chronotypes is usually by time of onset, midpoint, or offset of a rhythmic behaviour or physiological process. However, diel activity patterns respond flexibly to many short-term environmental influen

Mental health outcomes in parents of children with a cancer diagnosis in Sweden : A nationwide cohort study

Background: The diagnosis of paediatric cancer is a crisis for the parents who are the primary caregivers of the affected child. A comprehensive assessment of the longitudinal impact of childhood cancer on parental mental health and the potential sex differences between the parents is lacking. Thus, we aimed to explore the subsequent short- and long-term mental health outcomes among the parents of

Proguanil and atovaquone use is associated with lower colorectal cancer risk : a nationwide cohort study

Background: Individuals with a family history of colorectal cancer (CRC) are at a high risk of developing CRC. Preclinical studies suggest that the anti-malaria drug proguanil and atovaquone might play a role in preventing CRC, but population-based evidence is still lacking. Methods: By accessing a couple of nationwide Swedish registers, we performed a cohort study to explore whether using proguan

Roadmap for network-based biocomputation

Network-based biocomputation (NBC) is an alternative, parallel computation approach that can potentially solve technologically important, combinatorial problems with much lower energy consumption than electronic processors. In NBC, a combinatorial problem is encoded into a physical, nanofabricated network. The problem is solved by biological agents (such as cytoskeletal filaments driven by molecul