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This paper reviews the current literature regarding iron oxide formation in the wheel-rail contact in order to assess the possible role of iron oxides in the “Wet-Rail” phenomenon, which causes low adhesion between the wheel and the rail. The paper discusses the structure and formation of oxides from a chemical perspective before analysing the direct tribological effects and outlining the techniqu
SyfteMålsättningen med denna studie var dels att säkerställa att tågpersonalen inte utsätts för höga halter av partiklar i sitt arbete på X60B fordon som trafikerar Arlanda. Syftet var även att ta fram ett förhållande mellan partikelnivåerna i tunnelmiljö och ombord på pendeltågsfordon av typ X60B i förarhytterna för att avgöra ventilationsfiltrets kapacitet. Kunskapen om filtreringseffektiviteten
During the early months of the COVID-19 pandemic, there was an unusually high submission rate of scholarly articles. Given that most academics were forced to work from home, the competing demands for familial duties may have penalized the scientific productivity of women. To test this hypothesis, we looked at submitted manuscripts and peer review activities for all Elsevier journals between Februa
INTRODUCTION: In the wait for disease-modifying treatment for Parkinson’s disease (PD), efforts towards improved symptom control and reduced negative effects of PD can result in meaningful change patients. The general efficacy of levodopa-carbidopa intestinal gel (LCIG) in advanced PD has been established, but its effects on dyskinesia need more investigation. The PD Home Diary has been used in cl
Tribology in the railway system is of increasing interest in the new railway era due to the demand for higher speed and load capacity. Since railway vehicles operate in an open environment, their performance depends greatly on temperature, humidity and natural and artificial contaminants. Meanwhile, the “feedback” of railway vehicles to the surroundings, such as noise and airborne particles, is of
Introduction: The purpose of this study was to investigate neurological disorder as a risk factor for dislocation following arthroplasty for acute hip fractures. We also analysed medical and surgical adverse events (AE), readmission, reoperation, revision, and mortality as secondary outcomes. Methods: A longitudinal cohort study using prospectively collected and aggregated data from the Swedish Hi
Excessive tissue deformation near cartilage lesions and acute inflammation within the knee joint after anterior cruciate ligament (ACL) rupture and reconstruction surgery accelerate the loss of fixed charge density (FCD) and subsequent cartilage tissue degeneration. Here, we show how biomechanical and biochemical degradation pathways can predict FCD loss using a patient-specific finite element mod
Advanced therapies for Parkinson's disease (PD) constitute a broad range of treatments, each presenting specific ethical challenges. Some of these therapies are established and in clinical use, like device-aided therapies, and others, based on advanced therapeutic medicinal products (ATMPs), are still in early stage of clinical trials. This paper focuses on some common ethical issues arising in th
The amino acid sequence of the cysteine-containing regions of human complex-forming glycoprotein, heterogeneous in charge (protein HC) was determined by studies of the tryptic peptides of the completely reduced and radioalkylated protein. One of the cysteines was located in the amino-terminal part of the molecule at position 34....Diagonal map electrophoresis showed that the cysteine residue in th
The reduction in mortality following acute myocardial infarction (AMI) is an important achievement of modern medicine. Despite this progress, AMI remains the most common cause of heart failure (HF) and HF-related morbidity and mortality. The involvement of the innate immune response in different stages after AMI has attracted important attention in recent years. With the increasing range of potent
Concrete is the most common material used to build the structural framework in multistory buildings. However, the construction works carried out on the building site are affected by many different factors that may reduce productivity. Delayed material deliveries, poor planning and coordination of work tasks and production resources, as well as unfavorable weather are examples that reduce productiv
Radioimmunoassays of glucagon in plasma may be complicated by interaction with other substances of high molecular mass. Precipitates of such substances with ammonium sulfate showed, after isoelectric focusing, two fractions having glucagon immunoreactivity. One fraction (pl approximately 10) evidently is associated with the Fc portion (but not the Fab portion) of purified polyclonal immunoglobulin
Human complex-forming glycoprotein, heterogeneous in charge (protein HC) has previously been isolated from urine and immunochemically shown to be present in low and high molecular weight forms in blood plasma (Tejler, L., and Grubb, A. O. (1976) Biochim. Biophys. Acta 439, 82-94). In the present work, the major low and high molecular weight forms of the protein were isolated from plasma by immunos
Fresh human seminal plasma was demonstrated to contain a basic microprotein with the same size, electrophoretic mobility, isoelectric point and immunochemical properties as isolated human gamma-trace. The concentration of gamma-trace in 24 normal seminal plasma samples was found to be (mean +/- SD): 51 +/- 8.1 mg/l which is 36 times higher than the normal human blood plasma concentration of gamma-
The endogenous chemokines CCL19 and CCL21 signal via their common receptor CCR7. CCL21 is the main lymph node homing chemokine, but a weak chemo-attractant compared to CCL19. Here we show that the 41-amino acid positively charged peptide, released through C-terminal cleavage of CCL21, C21TP, boosts the immune cell recruiting activity of CCL21 by up to 25-fold and the signaling activity via CCR7 by
Recent technological and conceptual advances have resulted in a plethora of exciting novel engineered adeno associated viral (AAV) vector variants. They all have unique characteristics and abilities. This review summarizes the development and their potential in treating Parkinson's disease (PD). Clinical trials in PD have shown over the last decade that AAV is a safe and suitable vector for gene t
Seven genera new to science, i.e.: Helmutiopsis, Huriopsis, Johnsheardia, Klauskalbia, Kudratovia, Kurokawia and Poeltonia of the Physciaceae are proposed for the ‘Rinodina’ atrocinerea, the ‘Rinodina’ xanthophaea, the ‘Rinodina’ cinnamomea, the ‘Heterodermia’ obscurata, the ‘Rinodina’ straussii, the ‘Anaptychia’ isidiata and the ‘Physconia’ grisea groups consequently that all form strongly suppor
