Search results
Filter
Filetype
Your search for "*" yielded 532221 hits
Research Priorities in Pediatric Asthma : Results of a Global Survey of Multiple Stakeholder Groups by the Pediatric Asthma in Real Life (PeARL) Think Tank
Background: Pediatric asthma remains a public health challenge with enormous impact worldwide. Objective: The aim of this study was to identify and prioritize unmet clinical needs in pediatric asthma, which could be used to guide future research and policy activities. Methods: We first identified unmet needs through an open-question survey administered to international experts in pediatric asthma
Design of Switched Antenna Arrays for a 28 GHz Propagation Channel Sounder
A channel sounder is an advanced measurement system to estimate the behavior of wireless propagation channels. In this paper, we present the antenna array design for a 28GHz massive multiple-input multiple-output system, capable of measuring 256×128 dual-polarized channels, including dynamic properties of angular, delay, Doppler, and polarization parameters, respectively. Unique in comparison to o
De novo variants in CAMTA1 cause a syndrome variably associated with spasticity, ataxia, and intellectual disability
Previously, intragenic CAMTA1 copy number variants (CNVs) have been shown to cause non-progressive, congenital ataxia with or without intellectual disability (OMIM#614756). However, ataxia, intellectual disability, and dysmorphic features were all incompletely penetrant, even within families. Here, we describe four patients with de novo nonsense, frameshift or missense CAMTA1 variants. All four pa
Exploration of pathophysiological pathways for incident atrial fibrillation using a multiplex proteomic chip
Objective Atrial fibrillation (AF) is the most common arrhythmia and associated with increased morbidity and mortality. Its increasing prevalence calls for novel biomarkers to identify underlying pathophysiological mechanisms as well as patients at risk. Methods Plasma samples from 1694 individuals from the Swedish population-based Malmö Preventive Project (mean age 69.5 years; 29.3% female; mean
Comparing temperature sensitivity of bacterial growth in Antarctic marine water and soil
The western Antarctic Peninsula is an extreme low temperature environment that is warming rapidly due to global change. Little is known, however, on the temperature sensitivity of growth of microbial communities in Antarctic soils and in the surrounding oceanic waters. This is the first study that directly compares temperature adaptation of adjacent marine and terrestrial bacteria in a polar envir
Higher than expected CO2 fertilization inferred from leaf to global observations
Several lines of evidence point to an increase in the activity of the terrestrial biosphere over recent decades, impacting the global net land carbon sink (NLS) and its control on the growth of atmospheric carbon dioxide (ca). Global terrestrial gross primary production (GPP)—the rate of carbon fixation by photosynthesis—is estimated to have risen by (31 ± 5)% since 1900, but the relative contribu
Parkinsons sjukdom – heterogen och komplex i sitt kliniska uttryck - Individuella kombinationer av symtom som ändrar sig över tid kräver behandlingsjusteringar och anpassningar
Parkinsons sjukdom är den näst vanligaste neurodegenerativa sjukdomen. Lewykroppar med alfa-synuklein som huvudbeståndsdel och förlust av dopaminerga nervceller i substantia nigra är neuropatologiska kännetecken. Diagnosen baseras på förekomst av bradykinesi och rigiditet eller vilotremor. Sjukdomen är också förknippadmed många icke-motoriska symtom. Behandlingen baserar sig främst på farmakologisParkinson's disease is the second most common neurodegenerative disease. Lewy bodies with alpha-synuclein as the major component and loss of dopaminergic nerve cells in substantia nigra are neuropathological features. The diagnosis of Parkinson's disease is based on the occurrence of bradykinesia, rigidity and resting tremor. The disease is also associated with several non-motor symptoms. The ther
Visual encoding and fixation target selection in free viewing : Presaccadic brain potentials
In scrutinizing a scene, the eyes alternate between fixations and saccades. During a fixation, two component processes can be distinguished: visual encoding and selection of the next fixation target. We aimed to distinguish the neural correlates of these processes in the electrical brain activity prior to a saccade onset. Participants viewed color photographs of natural scenes, in preparation for
Generational dynamics of agricultural intensification in Malawi : challenges for the youth and elderly smallholder farmers
In the next 24 years, the Malawian population is expected to double, a development that will inevitably affect access to land and land holding sizes. As access to land is already limited, securing food for the growing population will require policy shifts including the promotion of agricultural intensification. Malawi’s economy depends on the agricultural sector, and this paper addresses the gener
Bringing Research into a Closed and Protected Place : Development and Implementation of a Complex Clinical Intervention Project in an ICU
This article reports a Swedish research project designed to study the impact of a cyclic light system, sound absorbents, and selected interior design changes in rooms within an intensive care unit. The authors describe the limitations of many previously reported intensive care unit (ICU) design research projects, and believe that much more knowledge is needed, which reflects a multidisciplinary pe
The BGOOD experimental setup at ELSA
The BGOOD experiment at the ELSA facility in Bonn has been commissioned within the framework of an international collaboration. The experiment pursues a systematic investigation of non-strange and strange meson photoproduction, in particular t-channel processes at low momentum transfer. The setup uniquely combines a central almost 4 π acceptance BGO crystal calorimeter with a large aperture forwar
Proteomic analysis reveals sex-specific biomarker signature in postural orthostatic tachycardia syndrome
BACKGROUND: Postural orthostatic tachycardia syndrome (POTS) is a variant of cardiovascular (CV) autonomic disorder of unknown etiology characterized by an excessive heart rate increase on standing and orthostatic intolerance. In this study we sought to identify novel CV biomarkers potentially implicated in POTS pathophysiology.METHODS: We conducted a nested case-control study within the Syncope S
The cooling process effect on the bilayer phase state of the CTAC/cetearyl alcohol/water surfactant gel
Gel formation by surfactant molecules is generally controlled by thermodynamics rather than kinetics. Mixtures of long-chain alcohols and surfactants are widely used in various cosmetic and pharmaceutical products. The cooling rate used to produce the products is known to be a key parameter to control the rheological properties and the final texture. However, the physical-chemistry links between t
Energy efficiency in the building sector: a combined middle-out and practice theory approach
AbstractThe building sector in Sweden and Europe is a major energy consumer, accounting for around 40% of total energy use. It is a challenge to optimize available technical and social strategies for the fragmented construction industry. Professionals such as architects and different building engineers play a crucial role in the technology adoption process.This study aims to contribute to the unde
Blood phosphorylated tau 181 as a biomarker for Alzheimer's disease : a diagnostic performance and prediction modelling study using data from four prospective cohorts
Background: CSF and PET biomarkers of amyloid β and tau accurately detect Alzheimer's disease pathology, but the invasiveness, high cost, and poor availability of these detection methods restrict their widespread use as clinical diagnostic tools. CSF tau phosphorylated at threonine 181 (p-tau181) is a highly specific biomarker for Alzheimer's disease pathology. We aimed to assess whether blood p-t
Quantum biology revisited
Photosynthesis is a highly optimized process from which valuable lessons can be learned about the operating principles in nature. Its primary steps involve energy transport operating near theoretical quantum limits in efficiency. Recently, extensive research was motivated by the hypothesis that nature used quantum coherences to direct energy transfer. This body of work, a cornerstone for the field
Synthesis of Na2Ti3O7 nanorods by a V-assisted route and investigation of their battery performance
We report the V-assisted synthesis of Na2Ti3O7 nanorods via a conventional solid state reaction technique. Energy dispersive X-ray spectroscopy (EDS) mapping showed that V-ions are not incorporated into the main structure of the nanorods but rather V behaves as a flux agent during the growth of the nanorods. The cyclic voltammetry (CV) analysis of the samples shows changes in the redox peaks as a
Agricultural productivity in relation to climate and cropland management in West Africa
The climate of West Africa is expected to become more arid due to increased temperature and uncertain rainfall regimes, while its population is expected to grow faster than the rest of the world. As such, increased demand for food will likely coincide with declines in agricultural production in a region where severe undernutrition already occurs. Here, we attempt to discriminate between the impact
Reducing deforestation in Colombia while building peace and pursuing business as usual extractivism?
In this article, I examine the contradictions and tensions in Colombia's simultaneous embrace of REDD+ and a peace-building process premised on continued extractivism. Colombia is emerging from an internal conflict that lasted more than 50 years. In this process rural land-use is being transformed, generating new conflicts over land use and control with detrimental effects on Colombia's forests. B