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X-ray microscopy and micro-tomography (μCT) are valuable non-destructive examination methods in many disciplines such as bio-medical research, archaeometry, material science and paleontology. Besides being implemented at synchrotrons radiation sources, laboratory setups using an X-ray tube and high-resolution scintillation detector routinely provide information on the micrometre scale. To improve
The laser host materials undergo relatively small changes in their intrinsic properties due to various sources during an experiment. These sources are often related to temperature change and vibrations due to crystal mounting, which may cause stress-induced birefringence in laser host materials. Birefringence is a phenomenon that causes optical anisotropy due to external load or residual stress. A
Decisions to admit or refuse admission to intensive care for acute exacerbations of COPD (AECOPD) can be difficult, due to an uncertainty about prognosis. Few studies have evaluated outcomes after intensive care for AECOPD in patients with chronic respiratory failure requiring long-term oxygen therapy (LTOT). In this nationwide observational cohort study, we investigated survival after first-time
Over the years, Carbon Capture and Sequestration (CCS) has been recognized as a crucial element in the toolkit of measures to combat climate change. At the European Union (EU) level, CCS plays a vital role in climate policy, particularly in reducing CO2 emissions from hard-to-abate industries. However, no comprehensive legal framework covers all stages of CCS. These stages include carbon capture t
We aimed to investigate the school performance gap and its potential trend from 2010 to 2020 in non-immigrant and second-generation immigrant children in Sweden, whether parental mental disorders and low socioeconomic status contribute to this gap and its trends, and whether the effects of these factors differ by immigration status. We used multiple Swedish population registers, including 829,787
Objective To investigate the relation between preterm birth (gestational age <37 weeks) and risk of CKD from childhood into mid-adulthood. Design National cohort study. Setting Sweden. Participants 4 186 615 singleton live births in Sweden during 1973-2014. Exposures Gestational age at birth, identified from nationwide birth records in the Swedish birth registry. Main outcome measures CKD, identif
BACKGROUND: Salivary amylase, encoded by the AMY1 gene, initiate the digestion of starch. Whether starch intake or AMY1 copy number is related to disease risk is currently rather unknown. The aim was to investigate the association between starch intake and AMY1 copy number and risk of cardiovascular disease (CVD) and mortality and whether there is an interaction. In addition, we aim to identify CV
In the passive solar water heater, temperature stratification is a valuable thermodynamic parameter for horizontal water storage tanks. This investigation aims to optimize the deflector and numerically study the effects of various deflector lengths and materials on temperature stratification of a horizontal water storage tank during natural convection. Firstly, comparative thermal performances of
With the urgent demand for ultralow-temperature refrigerators worldwide, the operation reliability and stability of the refrigeration system becomes greatly crucial. In this study, a -80 oC ultralow-temperature cascade refrigeration system (CRS) is developed. From aspects of global warming potential (GWP) and ozone depletion potential (ODP), the environmentally friendly refrigerants R290 and R170
Enucleation is a crucial event during the erythropoiesis, implicating drastic morphologic and transcriptomic/proteomic changes. While many genes deletion lead to failed or impaired enucleation have been identified, directly triggering the erythroid maturation, particularly enucleation, is still challenging. Inducing enucleation at the desired timing is necessary to develop efficient methods to gen
Diabetes mellitus (DM) incidence have been assessed in connection with air pollution exposure in several studies; however, few have investigated associations with source-specific local emissions. This study aims to estimate the risk of DM incidence associated with source-specific air pollution in a Swedish cohort with relatively low exposure. Individuals in the Västerbotten intervention programme
Optimization of machining processes, such as milling, is essential for industrial efficiency and product quality. To achieve greater efficiency, it is necessary to understand how tools wear down in different conditions in order to anticipate possible undesirable events like sudden breakage or unpredictable degradation. This study focuses on understanding tool wear in dry milling of compacted graph
ObjectivesPatient perceived benefit of treatment for cleft lip and/or palate is of great importance since it is central to development of cleft care. CLEFT-Q is a cleft-specific questionnaire on health-related quality of life. Test-retest reliability, aspects of responsiveness and interpretability are yet to be established for CLEFT-Q. This study aims to investigate these psychometric characterist
Objectives To study neutrophil gelatinase-associated lipocalin (NGAL) levels in peripheral blood in SLE, and to propose a mechanism by which neutrophils secrete NGAL on stimulation with immune complexes (IC). Methods NGAL was measured by ELISA in two independent Swedish SLE cohorts acting as exploratory and validation cohort (n=124 and n=308, respectively), disease controls (n=38) and healthy cont
Cemented carbides with tungsten carbide grains as hard phase and metallic cobalt binder phase are used extensively for drill bit inserts for rock drilling. The process of rock drilling is severe with some of the wear happening through fracture in the cemented carbide. This work investigated two cemented carbides with iron rich alternative binder phases containing different amounts of FCC phase, in
Small angle neutron scattering (SANS) has been employed to examine the self-assembly behaviour of sodium 5-tetradecyl furan-2-sulfonate (STFS), an emerging anionic surfactant, in bulk dilute solutions. STFS was also studied in binary and ternary mixtures with a common non-ionic (hexaethylene glycol monododecyl ether, C12E6) and anionic (sodium dodecyl sulfate, SDS) surfactant to explore the shape,
PURPOSE: Adding salt to foods, a novel indicator for studying habitual sodium intake, has been positively associated with multiple diseases and mortality. However, little is known about its association with liver-related disorders. This study aimed to investigate the associations of adding salt to foods with risks of metabolic dysfunction-associated steatotic liver disease (MASLD), cirrhosis, and
BACKGROUND: Falls are common among older persons and can have a major impact on their lives. Wearable sensors used in free-living conditions (moving naturally in one's daily living environment) can be used to predict falls and fall risks. To understand if using the wearable sensors is an acceptable way for older persons to be screened for fall risks, it is important to have knowledge of older pers
Background: Evidence on psychological outcomes of gaming disorder (GD) is still scarce. This study aimed to investigate the mediating role of sleep hygiene in the relationship between GD and psychological distress (depression and anxiety) among Iranian adolescents. Methods: This was a cross-sectional study among school students in Qazvin city, Iran. We administered GD, anxiety, and depression ques
Patients with systemic lupus erythematosus (SLE) face an approximately 30 % risk of thrombosis post-diagnosis. However, there remains significant knowledge gaps regarding causative mechanisms, and there is a lack of specific antithrombotic guidelines. This systematic review aims to examine the existing literature regarding the mechanisms contributing to thrombosis risk in SLE, focusing on five pre
