Search results

Filter

Filetype

Your search for "*" yielded 530134 hits

First on-line application of the high-resolution spectroscopy laser ion source PI-LIST at ISOLDE

We report on the development, characterization, and first application of a specialized resonance ionization laser ion source for high-resolution spectroscopy applications below usual hot cavity Doppler broadening limitations, for on-line experiments at CERN-ISOLDE. The new PI-LIST ion source comprises perpendicular laser/atom beam interaction in a radio-frequency quadrupole unit directly downstrea

Processing and characterization of large area InP nanowire photovoltaic devices

III−V nanowire (NW) photovoltaic devices promise high efficiencies at reduced materials usage. However, research has so far focused on small devices, mostly ≤1 mm2. In this study, the upscaling potential of axial junction InP NW photovoltaic devices is investigated. Device processing was carried out on a full 2″ wafer, with device sizes up to 1 cm2, which is a significant increase from the mm-scal

Uncertainty quantification of wood floor system modal frequencies resulting from variable densities in members

Low-frequency vibration in a multi-story wood building is of concern because failure in mitigation of such vibration may lead to occupant discomfort. Ultimately, it may cause damage to their health. Variability in material properties of the members of a wooden floor system significantly influences vibration response characteristics such as eigenfrequencies and mode shapes. In this study, we invest

Epigenetics of methylmercury

Purpose of review: Methylmercury (MeHg) is neurotoxic at high levels and particularly affects the developing brain. One proposed mechanism of MeHg neurotoxicity is alteration of the epigenetic programming. In this review, we summarise the experimental and epidemiological literature on MeHg-associated epigenetic changes. Recent findings: Experimental and epidemiological studies have identified chan

Barriers to continuance use of cloud computing : Evidence from two case studies

Continuous use of cloud computing and cloud sourcing has received limited research attention compared to cloud adoption. There are indications that cloud sourcing benefits are not easy to reap in continuous use for companies, calling for more research on the continuance use of cloud computing. The current study is one of the first studies of the continuance use of cloud computing processes at the

Preliminary results from a study of luminescent materials—For application in the beam imaging system at the ESS

As part of the development of the beam imaging system at the European Spallation Source, luminescent screens have been fabricated by the flame spraying of scintillating materials onto stainless steel backings. A total of seven screens were produced, three of chromia alumina (Al2O3:Cr), two of YAG (Y3Al5O12:Ce) and two of a 50/50 mix of these. The properties of these screens under proton irradiatio

Moisture- and mould-resistance : modelling of edge-sealed cross-laminated timber using multi-modal assessment leveraged by X-ray computed tomography

Edge-sealing, which involves treating the edges of wood products, improves water resistance. This study investigated the feasibility of edge-sealed cross-laminated timber (CLT) panels to reduce capillary water uptake, thereby resisting mould formation. The water and vapour permeabilities of ten characteristically different single-layer sealant coating systems were systematically determined. X-ray

More-than-climate temporalities of loss and damage in Australia

I contribute to an emerging politics of loss through an empirical analysis of temporalities of climate change loss and damage in Australia. How people temporalize climate change informs their conception of causality, designation of losses and damages, and political response. By drawing attention to the diversity of onto-epistemological understandings and characterizations of climate change loss an

Food insecurity experience during climate shock periods and farmers’ aspiration in Ethiopia

Research on climate change impact focuses on biophysical and economic dimensions. This paper seeks to unveil the association between smallholder farmers' food insecurity experience (FIE) during climate shock periods and their subsequent aspiration level. To this end, our analysis relied on data collected in rural Ethiopia following an unprecedented climate shock the country faced in 2016. We measu

The role of the electroencephalogram and evoked potentials after cardiac arrest

Purpose of review: In comatose cardiac arrest survivors, the electroencephalogram (EEG) is the most widely used test to assess the severity of hypoxic-ischemic brain injury (HIBI) and guide antiseizure treatment. However, a wide variety of EEG patterns are described in literature. Moreover, the value of postarrest seizure treatment is uncertain. Absent N20 waves of short-latency somatosensory-evok

A stochastic hierarchical model for low grade glioma evolution

A stochastic hierarchical model for the evolution of low grade gliomas is proposed. Starting with the description of cell motion using a piecewise diffusion Markov process (PDifMP) at the cellular level, we derive an equation for the density of the transition probability of this Markov process based on the generalised Fokker–Planck equation. Then, a macroscopic model is derived via parabolic limit

International Opinions on Grading of Urothelial Carcinoma : A Survey Among European Association of Urology and International Society of Urological Pathology Members

Background: Grade of non–muscle-invasive bladder cancer (NMIBC) is an important prognostic factor for progression. Currently, two World Health Organization (WHO) classification systems (WHO1973, categories: grade 1–3, and WHO2004 categories: papillary urothelial neoplasm of low malignant potential [PUNLMP], low-grade [LG], high-grade [HG] carcinoma) are used. Objective: To ask the European Associa

Heparin-binding protein as a marker of ventriculostomy related infection and central nervous system inflammation in neuro-intensive care

Objective: Diagnosis of ventriculostomy related infections (VRI) in the neuro-intensive care unit remains challenging and current biomarkers lack adequate precision. The aim of this study was to explore the potential of Heparin-binding protein (HBP) in cerebrospinal fluid (CSF) as a diagnostic biomarker of VRI. Methods: All patients treated with an external ventricular drain (EVD) between January

Community Assembly and Stability in the Root Microbiota During Early Plant Development

Little is known about how community composition in the plant microbiome is affected by events in the life of a plant. For example, when the plant is exposed to soil, microbial communities may be an important factor in root community assembly. We conducted two experiments asking whether the composition of the root microbiota in mature plants could be determined by either the timing of root exposure

Housing cooperatives and the contradictions of Finnish land and housing policies

This article explores some of the key institutional challenges hindering the development of a new ‘social’ housing cooperative model in Finland. In response to rising housing unaffordability and insecurity in the private housing sector, and a retrenching social housing sector, Finland is experiencing a resurgence of practical and political interest in housing cooperatives. Based on a document stud

Determinants of sexually transmitted infections among female sex workers in Ethiopia: a count regression model approach

Background: Sexually transmitted infections (STIs) remain a major public health problem worldwide, with the burden of these infections being high among female sex workers (FSWs), who are often not aware of their infection status. This study aimed to determine the factors that are associated with the number of STIs among FSWs in Ethiopia.Methods: A cross-sectional bio-behavioral study involving res

Spatial and temporal scales in rainfall analysis : Some aspects and future perspectives

Aspects of spatial and temporal rainfall variability and rainfall analysis in relation to some water management problems are surveyed and discussed. It is concluded that relevant modelling of hydrological processes in which the rainfall is a driving force is vital with respect to possibilities of finding solutions to increasing environmental problems following urbanization and industrialization. H