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Purpose: Genetic diversities in different countries affect the performance of HIV test kits. Therefore, WHO recommends evaluation of every HIV test kit in countries' context before its use. Therefore, this study aimed to evaluate the performance of Genscreen ULTRA HIV Ag-Ab and Bioelisa.Materials and methods: The study had used 400 characterized plasma samples obtained from CDC Atlanta bio-bank de
Cities and car traffic does not always fit well together. Apart from the well-knownenvironmental problems associated with traffic congestion (e.g. air pollution and noise,climate change and global warming), there are also negative local effects in the form ofincreased risk of traffic accidents, abuse of key resources (energy and time), gender issues interms of accessibility, security and power ove
OBJECTIVE: To describe midwives' experiences of providing contraception counselling to immigrant women.METHODS: The study was conducted with a qualitative design, based on interviews followed by inductive content analysis. Ten midwives were interviewed, working at midwife-led prenatal clinics in immigrant-dense areas in southern Sweden.RESULTS: Midwives require knowledge and understanding of cultu
Background and purpose: Our purpose was to study the association between country of birth and incident epilepsy in second-generation immigrants in Sweden. Methods: The study population included all children (n = 4 023 149) aged up to 18 years in Sweden. Epilepsy was defined as at least one registered diagnosis of epilepsy in the National Patient Register. The incidence of epilepsy, using individua
The main objective of this study was to investigate the trends on average and extreme events in time series of daily precipitation from 1980 to 2010 in the Paraná River basin, Brazil. The nonparametric Mann–Kendall test was applied to detect monotonic trend in the precipitation series. The occurrence of extreme values was analysed based on three generalized extreme values (GEV) models: Model 1 (st
Background: Adults with complex congenital heart disease (CHD) show reduced aerobic exercise capacity and impaired skeletal muscle function compared with healthy peers. Peripheral muscle factors are presumed to be important contributors to the aerobic capacity, but the mechanisms are poorly understood. The aim of the present study was to investigate differences between adults with CHD and controls
Objective: The optimal timing for transplantation is unclear in patients with Eisenmenger syndrome (ES). We investigated post-transplantation survival and transplantation-specific morbidity after heart-lung transplantation (HLTx) or lung transplantation (LTx) in a cohort of Nordic patients with ES to aid decision-making for scheduling transplantation. Methods: We performed a retrospective, descrip
Firms have been increasingly relying on online user communities to access external, distant knowledge and expertise. Previous research on online user communities has largely investigated the influence of users' social capital on their knowledge sharing behavior. In this study, we propose a two-way relationship between social capital and knowledge contribution of users in online user communities. T
Forest disturbances that lead to the replacement of whole tree stands are a cornerstone of forest dynamics, with drivers that include fire, windthrow, biotic outbreaks and harvest. The frequency of disturbances may change over the next century with impacts on the age, composition and biomass of forests. However, the disturbance return time, that is, the mean interval between disturbance events, re
Enligt svensk akademisk tradition uppvaktades Assar Lindbeck med en vänbok när han lämnade chefskapet för Institutet för internationell ekonomi. Lars Jonung anmäler här festskriften. Han belyser bl a Lindbecks roll som framgångsrik akademisk entreprenör och diskuterar institutets funktion som plantskola och förebild för en generation av svenska nationalekonomer.
The 2019 Global Award for Entrepreneurship Research has been awarded to Professor Boyan Jovanovic at New York University in the USA. Boyan Jovanovic has developed pioneering research that advances our understanding of the competitive dynamics between incumbent firms and new entrants, entrepreneurial learning and selection processes, and the importance of entrepreneurship for the economy. Key persp
Blastenia is a widely distributed lichen genus in Teloschistaceae. We reconstructed its phylogeny in order to test species delimitation and to find evolutionary drivers forming recent Blastenia diversity. The origin of Blastenia is dated to the early Tertiary period, but later diversification events are distinctly younger. We recognized 24 species (plus 2 subspecies) within 6 infrageneric groups.
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Vacancy-ordered lead-free perovskites with more-stable crystalline structures have been intensively explored as the alternatives for resolving the toxic and long-term stability issues of lead halide perovskites (LHPs). The dispersive energy bands produced by the closely packed halide octahedral sublattice in these perovskites are meanwhile anticipated to facility the mobility of charge carriers. H
