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Aerosolized particulate matter from fragmentation of carbon nanotube-enhanced concrete

Construction and demolition workers are exposed to high levels of particulate matter (PM) from building materials throughout their working life. Although nano-enabled building materials (NEBMs) may improve the performance and functionality of buildings, concerns are being raised regarding health risks from occupational exposure to PM from NEBMs. In this work, an experimental set-up for integrated

Low Al-content n-type AlxGa1−xN layers with a high-electron-mobility grown by hot-wall metalorganic chemical vapor deposition

In this work, we demonstrate the capability of the hot-wall metalorganic chemical vapor deposition to deliver high-quality n-AlxGa1−xN (x = 0 – 0.12, [Si] = 1×1017 cm−3) epitaxial layers on 4H-SiC(0001). All layers are crack-free, with a very small root mean square roughness (0.13 – 0.25 nm), homogeneous distribution of Al over film thickness and a very low unintentional incorporation of oxygen at

SARS-CoV-2 Infection and Development of Islet Autoimmunity in Early Childhood

IMPORTANCE: The incidence of diabetes in childhood has increased during the COVID-19 pandemic. Elucidating whether SARS-CoV-2 infection is associated with islet autoimmunity, which precedes type 1 diabetes onset, is relevant to disease etiology and future childhood diabetes trends.OBJECTIVE: To determine whether there is a temporal relationship between SARS-CoV-2 infection and the development of i

Abū Bakr Muḥammad ibn Zakariyyāʾ al-Rāzī: On Phlebotomy : Edition, translation and commentary

The objective of this study is to present a text-critical edition of the medieval treatise Maqāla fī l-Faṣd, ‘On Phlebotomy’, attributed to Abū Bakr Muḥammad ibn Zakariyyāʾ al-Rāzī (865-925), a prominent physician and scholar known especially for his expertise in medicine. His contributions as a distinguished medical author and devoted clinician earned him recognition in both Arabic and Latin medi

Nutrient limitation masks the dissolved organic matter composition effects on bacterial metabolism in unproductive freshwaters

Aquatic microbial responses to changes in the amount and composition of dissolved organic carbon (DOC) are of fundamental ecological and biogeochemical importance. Parallel factor (PARAFAC) analysis of excitation–emission fluorescence spectra is a common tool to characterize DOC, yet its ability to predict bacterial production (BP), bacterial respiration (BR), and bacterial growth efficiency (BGE)

Pulmonary toxicity and translocation of gallium phosphide nanowires to secondary organs following pulmonary exposure in mice

Background: III-V semiconductor nanowires are envisioned as being integrated in optoelectronic devices in the near future. However, the perspective of mass production of these nanowires raises concern for human safety due to their asbestos- and carbon nanotube-like properties, including their high aspect ratio shape. Indeed, III-V nanowires have similar dimensions as Mitsui-7 multi-walled carbon n

Sick leave after arthroscopic meniscus repair vs. arthroscopic partial meniscectomy

Objective: To evaluate sick leave after meniscal repair vs arthroscopic partial meniscectomy (APM) and, for comparison, vs the general population. Method: Using Swedish register data we included all employed persons aged 19–49 years in the general population of Skåne region and identified those having had meniscus repair or APM in the period of 2005–2012. We retrieved data on sick leave during 1 y

New insight into the causes, consequences, and correction of hematopoietic stem cell aging

Aging of hematopoietic stem cells (HSCs) is characterized by lineage bias, increased clonal expansion, and functional decrease. At the molecular level, aged HSCs typically display metabolic dysregulation, upregulation of inflammatory pathways, and downregulation of DNA repair pathways. Cellular aging of HSCs, driven by cell-intrinsic and cell-extrinsic factors, causes a predisposition to anemia, a

Tissue-based absolute quantification using large-scale TMT and LFQ experiments

Relative and absolute intensity-based protein quantification across cell lines, tissue atlases and tumour datasets is increasingly available in public datasets. These atlases enable researchers to explore fundamental biological questions, such as protein existence, expression location, quantity and correlation with RNA expression. Most studies provide MS1 feature-based label-free quantitative (LFQ

Airborne SARS-CoV-2 RNA collected during childbirth and autopsy

Airborne SARS-CoV-2 is considered to play a major role in covid-19 transmission, and several studies have reported its presence in hospital environments, including corridors, patient rooms, cohort rooms and ICUs (Dinoi et al., 2022). The risk of airborne virus have been associated with a number of factors, such as low ventilation, high patient viral load and in some cases, certain medical procedur

Airborne SARS-CoV-2 during childbirth

Airborne SARS CoV 2 is considered to play a major role in covid 19 transmission, and has been found in several hospital environments. There is a need to investigate the presence of airborne SARS CoV 2 in other hospital areas than traditional infectious disease wards. The results from the present study can contribute to a better understanding of the risk of covid 19 transmission by aerosols at deli

Breast cancer survival and incidence of second primary cancers after 30 years in a randomized study of two versus five years of adjuvant tamoxifen therapy

Background: Tamoxifen is an established treatment for breast cancer, but its long-term effects on survival and on secondary cancers are not fully evaluated. Material and methods: We studied 30 years outcome of 4124 postmenopausal patients who were randomized to receive (totally) two or five years of adjuvant tamoxifen. Results: After 5 years of follow-up, when tamoxifen treatment was finished in b

Does model of care affect women s health and wellbeing in the perinatal period in Sweden?

Background/Aims Self-rated health before, during and after pregnancy is important for women s quality of life and promotes bonding between mother and child. However, diverse aspects of care models influence women s experiences during pregnancy. This study aimed to investigate low?risk women s self-rated health during the perinatal period in relation to different models of care in Sweden. Methods A

The Shadow Side of Migration: Exploring the Nexus between Undocumentedness, Informality and Crime among Uzbek Migrants in Sweden

This article discusses the relationship between undocumentedness, informality, and vulnerability to crime among migrants, using the strain theory as a conceptual framework. Research on victimisation and engagement in crime among migrants is limited, and existing studies tend to focus on one aspect rather than the interplay between the two. This study focuses on the experiences of the Uzbek communi

DOPA decarboxylase is an emerging biomarker for Parkinsonian disorders including preclinical Lewy body disease

The diagnosis of Parkinsonian disorders is currently based on clinical criteria, which have limited sensitivity until most dopaminergic neurons are lost. Here we show that cerebrospinal fluid levels of DOPA decarboxylase (DDC) (also known as aromatic L-amino acid decarboxylase) can accurately identify patients with Lewy body disease (LBD) (area under the curve (AUC) = 0.89; PFDR = 2.6 × 10-13) and

Noise to Signal

With the introduction of information theory in the middle of the 20th century, the concept of noise came to be contrasted with signal. The exhibition Noise to Signal mainly consists of two projects that highlight the relative nature of these terms.The three textile works, all with the title Untitled (Noise), appear abstract but also represent a grainy filter that is usually applied to digital imag

Impact of a lower demand during the COVID-19 pandemic on the frequency of dwell time delays

This study investigates the relationship between changes in the frequency of dwell time delays and passenger flow characteristics and the frequency of railway service during the COVID-19 pandemic. To do so we make use of automatic passenger count data from commuter trains in Southern Sweden. Our findings show that the frequency of dwell time delays decreased under COVID-19 conditions compared to t