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So far, research on plant-associated macroinvertebrates, even if conducted on a large number of water bodies, has mostly focused on a relatively small area, permitting limited conclusions to be drawn regarding potentially broader geographic effects, including climate. Some recent studies have shown that the composition of epiphytic communities may differ considerably among climatic zones. To asses
Nekrolog över historikern Erling Sandmo (1963–2020)
AIMS/HYPOTHESIS: Psychological stress has long been considered a possible trigger of type 1 diabetes, although prospective studies examining the link between psychological stress or life events during pregnancy and the child's type 1 diabetes risk are rare. The objective of this study was to examine the association between life events during pregnancy and first-appearing islet autoantibodies (IA)
Over the past decades, men's and women's time use in industrialized nations has changed dramatically, suggesting a gender revolution. Women increased their time in paid work and reduced time in unpaid activities, while men increased their time in unpaid work, but not enough to compensate for women's retreat. We investigate developments regarding men's and women's unpaid work across Europe and the
The aim of the study was to analyze freely generated self-presentations through the natural language processing technique of Latent Semantic Analysis (LSA). Four hundred fifty-one participants (F = 360; M = 143) recruited from LinkedIn (a professional social network) were randomly assigned to generate 10 words to describe themselves to either an employer (recruitment-condition) or a friend (friend
We investigate the variation of elastic stiffness moduli and the thermodynamic properties of yttrium orthosilicate (Y2SiO5, YSO) under various doping concentrations of Eu3+ ions. The model is based on a low temperature approximation (T<<θD), and the plane-wave density functional theory (DFT) is used to carry out the calculations. The results show that the Eu3+ ions primarily occupy the Y1 site of
This article presents a bistatic reflection-based imaging technique for electromagnetic testing of conductor-backed composite panels, which is based on an inverse formulation of the numerical problem at hand, and technically extends a previously demonstrated transmission-based system. The technique exploits the a priori assumption of pixel-based sparsity and retrieves the final image using data fr
A novel kind of regenerative cooling channel, a so-called nested channel, is proposed to further reduce the combustion chamber wall temperature of a scramjet. The supercritical n-decane heat transfer in the horizontal up-channel and horizontal down-channel with different flow directions are numerically investigated. The temperature distribution, flow field, and vortex structure are presented to di
Titanium dioxide (TiO2) is a unique material for biosensing applications due to its capability of hosting enzymes. For the first time, we show that TiO2 can accumulate reactive oxygen species (ROS) under daylight irradiation and can support the catalytic cycle of horseradish peroxidase (HRP) without the need of H2O2 to be present in the solution. Phenolic compounds, such as hydroquinone (HQ) and 4
Objective: Estimate the time-course of the spread of key pathological markers and the onset of cognitive dysfunction in Alzheimer's disease. Methods: In a cohort of 335 older adults, ranging in cognitive functioning, we estimated the time of initial changes of Aβ, tau, and decreases in cognition with respect to the time of Aβ-positivity. Results: Small effect sizes of change in CSF Aβ42 and region
Human episodic memory critically depends on subregions of the medial temporal lobe, which are part of functional brain systems such as the anterior-temporal and the posterior-medial system. Here we analysed how Alzheimer's pathology affects functional connectivity within these systems. Data from 256 amyloid-b-negative cognitively unimpaired, 103 amyloid-b-positive cognitively unimpaired, and 83 am
M. B. Hintikka (1939–1987) and J. Hintikka (1929–2016) claimed that their reconstruction of the ‘Sherlock Holmes sense of deduction’ can “serve as an explication for the link between intelligence and memory” (1983, p. 159). The claim is vindicated, first for the single-agent case, where the reconstruction captures strategies for accessing the content of a distributed and associative memory; then,
OBJECTIVE This study investigates two-phase growth patterns in early life and their association with development of islet autoimmunity (IA) and type 1 diabetes (T1D). RESEARCH DESIGN AND METHODS The Environmental Determinants of Diabetes in the Young (TEDDY) study followed 7,522 genetically high-risk children in Sweden, Finland, Germany, and the U.S. from birth for a median of 9.0 years (interquar
Objective: Both psoriatic arthritis (PsA) and rheumatoid arthritis (RA) have a significant impact on quality of life, but few reports have compared the two diseases. The current study assessed health-related quality of life (HRQoL) in PsA at diagnosis and after five years compared with early rheumatoid arthritis (RA) and a matched general population. Methods: Patients with early PsA and early RA i
One of the benefits of cooperative hunting may be that predators can subdue larger prey. In spiders, cooperative, social species can capture prey many times larger than an individual predator. However, we propose that cooperative prey capture does not have to be associated with larger caught prey per se, but with an increase in the ratio of prey to predator body size. This can be achieved either b
Aim: To discuss specialist operating theatre nurses’ competence in relation to the general six core competencies and patient safety. Design: A discursive analysis of legal statutes and scientific articles. Methods: Swedish legal statutes and an overview of scientific articles on operating theatre nursing were deductively analysed and classified into healthcare providers’ general six core competenc
Introduction: Radiography is a young discipline and having radiographers with a doctoral degree is central for its development. Academic development of this field in Sweden has been evolving. This study explored the diagnostic radiographers’ prerequisites for doctoral studies, post-doctoral employment and research activities. Methods: Data were collected through a questionnaire designed to give in
Background: Working on the labour ward entails being responsible for severe events during which a mother or baby may be injured or may die. Such events might affect decision-making, team-working, capacity for empathy, and patient safety. Aim: To explore midwives’ and obstetricians’ experiences, reactions and interpretations of being part of a severe event on the labour ward. Design. A qualitative
This study encompasses the development of a long-term coastal evolution model with enhanced capabilities to simulate simultaneously the cross-shore and longshore evolution of the coast. The paper starts by reviewing the theory related to cross-shore and longshore sediment transport, which are the major components integrated in the model. Major advances were made by introducing modules to better ac
Despite being known of for decades, the actual realization of memory devices based on the memristive effect is progressing slowly, due to processing requirements and the need for exotic materials which are not compatible with today's complementary-metal-oxide-semiconductor (CMOS) technology. Here, we report an experimental study on a Ge quantum wire device featuring distinct signatures of memristi
