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Two-Substrate Glyoxalase i Mechanism : A Quantum Mechanics/Molecular Mechanics Study

Glyoxalase I (GlxI) is an important enzyme that catalyzes the detoxification of methylglyoxal (MG) with the help of glutathione (H-SG). It is currently unclear whether MG and H-SG are substrates of GlxI or whether the enzyme processes hemithioacetal (HTA), which is nonenzymatically formed from MG and H-SG. Most previous studies have concentrated on the latter mechanism. Here, we study the two-subs

Structures of subcontracting : Work organisation, control, and labour in the Swedish building sector

Svensk byggindustri är under förändring. Stora delar av produktionen läggs idag ut på entreprenad och byggföretag förlitar sig på underentreprenörer i större utsträckning än tidigare. Som en del av en global trend av kostnadsreducering inom byggindustrin, försöker byggföretag minimera antalet anställda hantverkare och istället utkontraktera arbete till underentreprenörer i strävan efter organisatoThe organisation of work in the Swedish building sector is changing due to increased subcontracting and the adoption of construction management. In this study, construction management refers to a specific subcontracting regime, in which contractors externalise all parts of the production process and organise work through subcontractors. Echoing global trends of cost-cutting, this externalisation b

A combined fracture and mortality risk index useful for treatment stratification in hip fragility fractures

Objectives: In this study, we aimed to assess the stratification ability of the Fracture and Mortality Risk Evaluation (FAME) index for reoperation, new fragility fracture, and mortality during one-year follow-up. Patients and methods: Between November 2018 and July 2019, a total of 94 consecutive hip fragility fracture patients from two centers (20 males, 74 females; mean age: 79.3±8.9 years; ran

Variable proportions of phylogenetic clustering and low levels of antiviral drug resistance among the major hbv sub-genotypes in the middle east and North Africa

Hepatitis B virus (HBV) infection remains a major public health threat in the Middle East and North Africa (MENA). Phylogenetic analysis of HBV can be helpful to study the putative transmission links and patterns of inter-country spread of the virus. The objectives of the current study were to analyze the HBV genotype/sub-genotype (SGT) distribution, reverse transcriptase (RT), and surface (S) gen

Desaturation effects of pyrite–sand mixtures on induced polarization signals

Induced polarization (IP) is an acknowledged method in ore exploration and can be applied to evaluate the metal content in dumps containing the residues of ore processing facilities. Existing models explain the relationships between ore content and grain size of the ore particles with IP parameters. However, the models assume full water saturation of the ore containing samples, which is often not

De novo DHDDS variants cause a neurodevelopmental and neurodegenerative disorder with myoclonus

Subcellular membrane systems are highly enriched in dolichol, whose role in organelle homeostasis and endosomal-lysosomal pathway remains largely unclear besides being involved in protein glycosylation. DHDDS encodes for the catalytic subunit (DHDDS) of the enzyme cis-prenyltransferase (cis-PTase), involved in dolichol biosynthesis and dolichol-dependent protein glycosylation in the endoplasmic re

Poorly Expressed Alleles of Several Human Immunoglobulin Heavy Chain Variable Genes are Common in the Human Population

Extensive diversity has been identified in the human heavy chain immunoglobulin locus, including allelic variation, gene duplication, and insertion/deletion events. Several genes have been suggested to be deleted in many haplotypes. Such findings have commonly been based on inference of the germline repertoire from data sets covering antibody heavy chain encoding transcripts. The inference process

Certainty and systematicity of practice-derived evidence matter for its relative importance in professional decision-making : Survey results on the role of proven experience in Swedish medicine, nursing, OT, dentistry, and dental hygiene

High-quality healthcare decisions need to balance input from science and clinical practice. When two sources of evidence — such as scientific and practice-derived evidence — are compared, integrated, or need to stand-in for one another, they need to be comparable on similar dimensions. Since 1891, Swedish physicians have been operating under a legal requirement to base their healthcare decisions oBackgroundHigh-quality healthcare decisions need to balance input from science and clinical practice. When two sources of evidence — such as scientific and practice-derived evidence — are compared, integrated, or need to stand-in for one another, they need to be comparable on similar dimensions. Since 1891, Swedish physicians have been operating under a legal requirement to base their healthcare d

Ecology of animal migration

Billions of animals are adapted to a travelling life, making regular return migrations between more or less distant living stations on Earth by swimming, flying, running or walking (Figure 1). Extremely long migrations are completed annually by whales between calving areas in warmer waters and feeding areas at higher latitudes in either hemisphere. The longest oceanic migrations among sea turtles

Superparamagnetic iron oxide nanoparticles (SPIONs) as a multimodality imaging probe for sentinel nodes : Design and Preclinical Evaluation

Bröst- och hudcancerceller sprider sig via lymfatiska systemet och fastnar i en eller två regionala sentinel lymfnoder (SLN) där de med stor sannolikhet växer till metastaser. Därför är SLN-biopsier och relaterade histopatologiska undersökningar viktiga vid cancerdiagnostiken för att bestämma sjukdomsstatus och att från denna kunna bestämma rätt behandling. Patienter vars lymfnoder innehåller spri

Markers of Atrial Myopathy in the General Population : Prevalence, Predictors, and Inter-Relations

BACKGROUND: Atrial myopathy refers to structural and functional cardiac abnormalities associated with atrial fibrillation and stroke, but appropriate diagnostic criteria are lacking.OBJECTIVES: This study aimed to assess prevalence, clinical correlates, and overlap between potential atrial myopathy markers.METHODS: The population-based SCAPIS (Swedish CArdioPulmonary bioImage Study) prospectively

Signaling to the immature brain - Choroid plexus, insulin-like growth factor 1 and extracellular vesicles

I Sverige överlever idag uppemot 80% av de barnen som är födda extremt för tidigt (födda innan graviditetsvecka 28). Dock medföljer en hög sjuklighet, där uppemot 20% av barnen utvecklar olika sjukdomstillstånd såsom blödning i hjärnas hålrum, även kallat intra-ventrikulär hjärnblödning (IVH). Dessutom löper de extremt för tidigt födda barnen en ökad risk att utveckla en intellektuell och neurologExtremely preterm infants (i.e., born below 28 gestational weeks), are at high risk of developing brain morbidities including intraventricular hemorrhage (IVH) and neurodevelopmental impairment. Despite over 50 years of research, there is currently no effective therapy available for preventing IVH. Insulin-like growth factor 1 (IGF-1) plays a pivotal role in perinatal development. Extremely preter

Investigating Partially Discordant Results in Phase 3 Studies of Aducanumab

Objectives: Efficacy and safety results from the EMERGE (NCT02484547) and ENGAGE (NCT02477800) phase 3 studies of aducanumab in early Alzheimer’s disease (AD) have been published. In EMERGE, but not in ENGAGE, high-dose aducanumab demonstrated significant treatment effects across primary and secondary endpoints. Low-dose aducanumab results were consistent across studies with non-significant differ

Psychometric evaluation of the electronic faces thermometer scale for pain assessment in children 8–17 years old: A study protocol

It is often a challenge for a child to communicate their pain, and their possibilities to do so should be strengthened in healthcare settings. Digital self-assessment provides a potential solution for person-centered care in pain management and promotes child participation when a child is ill. A child's perception of pain assessment differs when it is assessed using digital or analog formats. As w

Encapsulation of sugar beet phytoglobin BvPgb 1.2 and myoglobin in a lipid sponge phase system

Globins are usually associated with oxygen carriage in vertebrates. However, plants also contain similar heme-containing proteins, called phytoglobins (Pgbs). Unlike conventional hemoglobin, these proteins are often linked to nitric oxide metabolism, energy metabolism and redox maintenance under hypoxic and related abiotic and biotic stress conditions. Class I and II non-symbiotic Pgbs (nsPgbs) ha

Exploring the impacts of unprecedented climate extremes on forest ecosystems : Hypotheses to guide modeling and experimental studies

Climatic extreme events are expected to occur more frequently in the future, increasing the likelihood of unprecedented climate extremes (UCEs) or record-breaking events. UCEs, such as extreme heatwaves and droughts, substantially affect ecosystem stability and carbon cycling by increasing plant mortality and delaying ecosystem recovery. Quantitative knowledge of such effects is limited due to the

On the Utility of Representation Learning Algorithms for Myoelectric Interfacing

När vi människor försöker röra på oss skickas elektriska impulser genom nervsystemet från hjärnan ner till de muskler som är inblandade i den tilltänkta rörelsen. Att kunna mäta sådana nervimpulser hade varit av värde för en rad tillämpningar—information hade då kunnat överföras direkt från nervsystemet utan att gå via långsamma, mekaniska gränssnitt så som tangentbord och pekskärmar. OlyckligtvisElectrical activity produced by muscles during voluntary movement is a reflection of the firing patterns of relevant motor neurons and, by extension, the latent motor intent driving the movement. Once transduced via electromyography (EMG) and converted into digital form, this activity can be processed to provide an estimate of the original motor intent and is as such a feasible basis for non-invas

Structure and dynamics of hydrogen sorption in mesoporous MCM-41

Adsorption isotherms taken at temperatures ranging from 20 to 77 K show a large pore volume and surface area of 980 m2 g-1 for the physical adsorption of molecular hydrogen on MCM-41. The adsorbed hydrogen behaves more like a solid than a liquid and isosteric heats of adsorption reveal a heterogenous surface. The evaporation behaviour of the adsorbed hydrogen indicates that the hexagonally packed

HÉR! An Exploration of Artistic Agency

This doctoral thesis is concerned with agency in the work of a performer, curator, and composer, and how these agencies are socio-culturally constructed. Grounded in creative practice as primary research methodology, the project builds on feedback loops between creation, analysis, and interpretation. The aim is to better understand the conventional norms that define the roles of composer and perfo