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Background: Antibody-based immunoassays have enabled quantification of very low concentrations of phosphorylated tau (p-tau) protein forms in cerebrospinal fluid (CSF), aiding in the diagnosis of AD. Mass spectrometry enables absolute quantification of multiple p-tau variants within a single run. The goal of this study was to compare the performance of mass spectrometry assessments of p-tau181, p-
Considerable time is often spent optimizing antennas to meet specific design metrics. Rarely, however, are the resulting antenna designs compared to rigorous physical bounds on those metrics. Here, we study the performance of optimized planar meander line antennas with respect to such bounds. Results show that these simple structures meet the lower bound on the radiation quality factor (Q-factor)
Background: Quantitative risk assessment (QRA) for skin sensitization is used to derive safe use levels of sensitising fragrance ingredients in products. Post-marketing surveillance of the prevalence of contact allergy to these ingredients provides relevant data to help evaluate the performance of these measures. Objectives: To determine a suitable patch test concentration for five fragrance mater
Background. Airborne SARS-CoV-2 plays a prominent role in COVID-19 transmission. Numerous studies have sampled air from patient rooms, but airborne spread to other hospital areas such as corridors is less investigated. Methods. Size-fractionated aerosol particles were collected weekly, with 12 hours of sampling time daily, in corridors at two infectious disease wards in southern Sweden between Mar
Delayed cerebral ischemia (DCI) occurs in up to one third of patients suffering from aneurysmal subarachnoid hemorrhage (aSAH). Untreated, it leads to secondary cerebral infarctions and is frequently associated with death or severe disability. After aneurysm rupture, erythrocytes in the subarachnoid space lyse and liberate free hemoglobin (Hb), a key driver for the development of DCI. Hemoglobin i
The addition of polypropylene (PP) fibres has been shown to reduce the fire spalling propensity of concrete. When including this type of fibres in the concrete, the concrete mix becomes less robust, and small deviations in the constitutes change the workability and properties of the concrete. So, from a manufacturing perspective as small dosages as possible of PP fibres are desirable. Very few lar
This paper examines corporate angels, small businesses that provide equity capital directly to unquoted ventures and become minority shareholders. Corporate angels have been largely ignored in entrepreneurial finance research. This novel study examines corporate angels' investment practices, goals and challenges by means of a combination of qualitative cases and a survey of 87 corporate angels. Fr
A persistent anthropocentric school of thought prevents comparative cognition from truly joining the evolutionary sciences, which often view “cognition” as an alien subject to the study of life. In this article, I argue that cognition is indeed inherent to all life and that we could study the evolution of cognitive skills like any other species-specific trait if we stop elevating convergence over
Ribosomes trapped on mRNAs during protein synthesis need to be rescued for the cell to survive. The most ubiquitous bacterial ribosome rescue pathway is trans-translation mediated by tmRNA and SmpB. Genetic inactivation of trans-translation can be lethal, unless ribosomes are rescued by ArfA or ArfB alternative rescue factors or the ribosome-associated quality control (RQC) system, which in Bacill
Digital healthcare services and digital health information, here called eHealth services, have the potential to reach people with diverse needs as both a complement to and a substitution for traditional healthcare. The access to and use of digital health information and digital healthcare services that are accessible and usable for people with impairments is a complex phenomenon.This potential is
BACKGROUND: Coronary atherosclerosis detected by imaging is a marker of elevated cardiovascular risk. However, imaging involves large resources and exposure to radiation. The aim was, therefore, to test whether nonimaging data, specifically data that can be self-reported, could be used to identify individuals with moderate to severe coronary atherosclerosis.METHODS AND RESULTS: We used data from t
Contemporary society operates beyond safe boundaries of the Earth system. Returning to a safe operating space for humanity within Earth system boundaries is a question of justice. The relevance of the economy—and thus of business—for bringing society back to a safe and just operating space highlights the importance of business ethics research for understanding the role of business in Earth system
Livscykelanalys (LCA) används för att utvärdera den potentiella miljöpåverkan av olika processer och tjänster, bland annat inom bygg- och fastighetssektorerna. Denna studie jämför tre LCA-verktyg som är speciellt utvecklade för användning inom bygg- och fastighetssektorn mot ett fjärde som är ett allmänt LCA-verktyg. En LCA görs för en fallstudie av ett flerfamiljshus där ett ventilationssystem meLife cycle assessment (LCA) is used to evaluate the potential environmental impact of different processes and services, including in the construction and real estate sectors. This study compares three LCA tools that have been specifically developed for use in the construction and real estate sectors with a fourth that is a general LCA tool. An LCA is performed for a case study of a multi-family bu
The diversity of bacteriophages is likely unparalleled in the biome due to the immense variety of hosts and the multitude of viruses that infect them. Recent efforts have led to description at the genomic level of numerous bacteriophages that infect the Actinobacteria, but relatively little is known about those infecting other prokaryotic phyla, such as the purple non-sulfur photosynthetic α-prote
To limit global warming to 1.5°C, fossil fuel use must rapidly decline, but historical precedents for such large-scale transitions are lacking. Here we identify 147 historical episodes and policy pledges of fossil fuel decline in 105 countries and global regions between 1960 and 2018. We analyze 43 cases in larger systems most relevant to climate scenarios. One-half of 1.5°C-compatible scenarios e
