Chemical, oxidational and diffusional interactions between the tool, chip and cutting environment are known tool wear mechanisms in machining. However, the interaction between tool, coating, workpiece, coolant and atmospheric oxygen can, under favorable conditions, lead to formation of reaction products that retard tool wear. A method with the ability to predict theses interactions, would therefor

The extinction of 80% of megaherbivore (>1,000 kg) species towards the end of the Pleistocene altered vegetation structure, fire dynamics and nutrient cycling world-wide. Ecologists have proposed (re)introducing megaherbivores or their ecological analogues to restore lost ecosystem functions and reinforce extant but declining megaherbivore populations. However, the effects of megaherbivores on sma

Within-plant variation in seed size may merely reflect developmental instability, or it may be adaptive in facilitating diversifying bet-hedging, that is, production of phenotypically diverse offspring when future environments are unpredictable. To test the latter hypothesis, we analyzed patterns of variation in seed size in 11 populations of the perennial vine Dalechampia scandens grown in a comm

Central venous catheter misplacement is common (approximately 7%) after right subclavian vein catheterisation. To avoid it, ultrasound-guided tip navigation may be used during the catheterisation procedure to help direct the guidewire towards the lower superior vena cava. We aimed to determine the number of central venous catheter misplacements when using the right supraclavicular fossa ultrasound

CONTEXT: - Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) can undergo maternal-fetal transmission, heightening interest in the placental pathology findings from this infection. Transplacental SARS-CoV-2 transmission is typically accompanied by chronic histiocytic intervillosaaitis together with necrosis and positivity of syncytiotrophoblast for SARSCoV-2. Hofbauer cells are placental

Protective covers (i.e., glasshouses, netting enclosures, and polytunnels) are increasingly used in crop production to enhance crop quality, yield, and production efficiency. However, many protected crops require insect pollinators to achieve optimal pollination and there is no consensus about how best to manage pollinators and crop pollination in these environments. We conducted a systematic lite

Objectives: The aim of the research summarized in this thesis was to present a comprehensive view of the epidemiology of biopsy-confirmed GCA, investigate infection as a possible risk factor of GCA, and to assess the association of GCA with cancer and myocardial infarction.Methods: To establish incidence and prevalence, patients diagnosed with biopsy-confirmed GCA in Skåne, Sweden 1997–2019 were i

Burning candles release a variety of pollutants to indoor air, some of which are of concern for human health. We studied emissions of particles and gases from the stressed burning of five types of pillar candles with different wax and wick compositions. The stressed burning was introduced by controlled fluctuating air velocities in a 21.6 m3 laboratory chamber. The aerosol physicochemical properti

The aim of this study was to evaluate the effects of vitamin K1 on various vitamin K-dependent proteins in critically ill patients with prolonged Owren PT. We included critically ill non-bleeding adult patients without liver failure or anticoagulation treatment, with Owren PT > 1.2, who were prescribed intravenous vitamin K1. Blood was drawn at baseline and at 20–28 h after vitamin K1 administratiThe aim of this study was to evaluate the effects of vitamin K1 on various vitamin K-dependent proteins in critically ill patients with prolonged Owren PT. We included critically ill non-bleeding adult patients without liver failure or anticoagulation treatment, with Owren PT > 1.2, who were prescribed intravenous vitamin K1. Blood was drawn at baseline and at 20–28 h after vitamin K1 administrati

Non-exhaust emissions, generated by the wear of brake systems, tires, roads, clutches, and road resuspension, are responsible for a large part of airborne pollutants in urban areas. Brake wear accounts for 55% of non-exhaust emissions and significantly contributes to urban health diseases related to air pollution. A major part of the studies reported in the scientific literature are focused on exp

The emergence of fourth-generation synchrotrons is prompting the development of new systems for experimental control and data acquisition. However, as general control systems are designed to cover a wide set of instruments and techniques, they tend to become large and complicated, at the cost of experimental flexibility. Here we present Contrast, a simple Python framework for interacting with beam

Although findings yield differing conclusions, there is a consensus that the US political system has polarized in the last few decades (Mason 2018). Outside of the US, empirical results have been scarce and mixed. Political polarization tends to be easier to measure in a two-party system, whereas multiparty systems might not be as conducive to clear cases of polarization. Media effects are one of

Achieving a more circular production and consumption pattern will require consumers to make proactive choices regarding practices such as repair and product life extension. However, galvanizing such choices and practices may not be left alone up to consumers because their behaviors are driven not only by internal factors (e.g., attitude and motivation), but also by external (e.g., economic, social

Research into repair within the circular economy (CE) typically focuses on technical aspects of design, policy, and markets, and often assumes or implies simplified conditions for the user/owner and the product-system to explain the barriers to scaling repair activities. By integrating life cycle and temporal dimensions (time-sequence) into a broad System of Repairability framework, we demonstrate

The European Commission describes a Circular Economy (CE) as an economy “where the value of products,materials and resources is maintained in the economy for as long as possible, and the generation of waste minimised.”But what is value in this context and how should CE policies consider value? Extended producer responsibility(EPR) policies are an important part of an EU CE Action Plan. However, th