BACKGROUND: Long-term oxygen supplementation for at least 15 hours per day prolongs survival among patients with severe hypoxemia. On the basis of a nonrandomized comparison, long-term oxygen therapy has been recommended to be used for 24 hours per day, a more burdensome regimen.METHODS: To test the hypothesis that long-term oxygen therapy used for 24 hours per day does not result in a lower risk

Dynamic restructuring of silver catalysts during the industrial conversion of methanol to formaldehyde leads to surface faceting and pinhole formation. Subsequent sintering under reaction conditions, followed by increased pressure drop and decreased catalyst activity requires catalyst bed replacement after several months of operation. This necessitates a comprehensive understanding of the bulk cat

Industrial packaging plays an important role in the performance and environmental efficiency of supplychains. Despite it being so important, the implications that industrial packaging decisions have on thelogistics operations (and vice-versa) are not completely understood. This thesis contributes to theunderstanding of the impacts of sustainable industrial packaging by discussing the importance of

BackgroundThis study aimed to investigate the exposure to perfluoroalkyl substances (PFAS) and cancer-related toxicity in workers in different Swedish industry sectors with exposures to hexavalent chromium (Cr(VI)).MethodsThe study consisted of 111 exposed workers and 72 controls. The exposed workers were performing manufacture/processing of metal products (n=55), working in steel production (n=31

The presence of overlapping elements in distinct events promotes the formation of associative inferences across event boundaries, thereby shaping how new information is integrated with pre-existing knowledge. This study investigates the influence of schema congruency on mnemonic processes involved in such associative inferences.The present study employed EEG recordings of brain activity to assess

INTRODUCTION: Symptom distress after heart transplantation (HTx) is a significant problem causing uncertainty, low self-efficacy, and psychological distress. Few studies have addressed self-reported symptoms. The aim was to explore self-reported symptom distress from time on the waiting list to 5 years after HTx and its association with self-reported psychological well-being, chronic pain, and fat

Cadmium telluride (CdTe) solar cell technology is a promising candidate to help boost green energy production. However, impurities and structural defects are major barriers to improving the solar power conversion efficiency. Grain boundaries often act as aggregation sites for impurities, resulting in strain localization in areas of high diffusion. In this study, we demonstrate the use of scanning

Narcolepsy is a sleep disorder caused by an apparent degeneration of orexin/hypocretin neurons in the lateral hypothalamic area and a subsequent decrease in orexin/hypocretin levels in the cerebrospinal fluid. Narcolepsy is classified into type 1 (NT1) and type 2 (NT2). While genetic associations in the human leukocyte antigen (HLA) region and candidate autoantibodies have been investigated in NT1

Objective: Migraine is a complex and disabling neurological disorder. Recent years have witnessed the development and emergence of novel treatments for the condition, namely those targeting calcitonin gene-related peptide (CGRP). However, there remains a substantial need for further treatments for those unresponsive to current therapies. Targeting pituitary adenylate cyclase-activating polypeptide

The temporal dynamics of the perception of within-word coarticulatory cues remain a subject of ongoing debate in speech perception research. This behavioral gating study sheds light on the unfolding predictive use of anticipatory coarticulation in onset fricatives. Word onset fricatives (/f/ and /s/) were split into four gates (15, 35, 75 and 135 milliseconds). Listeners made a forced choice about

Mental health problems among young adults often lead to obstacles to completing higher education and becoming established in the labour market. It is important to offer support that can help these individuals realize educational and vocational goals in order to become self-sufficient and achieve social inclusion. Individual Placement and Support (IPS) and Supported Education (SEd) are two methods