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Now showing items 8832-8851 of 24080
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Four-dimensional distribution of the 2010 Eyjafjallajökull volcanic cloud over Europe observed by EARLINET
(2013-04-29)The eruption of the Icelandic volcano Eyjafjallaj ökull in April-May 2010 represents a "natural experiment" to study the impact of volcanic emissions on a continental scale. For the first time, quantitative data about the ... -
Four-dimensional variational data analysis of water vapor Raman lidar data and their impact on mesoscale forecasts
(2008-08)The impact of water vapor observations on mesoscale initial fields provided by a triangle of Raman lidar systems covering an area of about 200 km × 200 km is investigated. A test case during the Lindenberg Campaign for ... -
A four-stage process for intervention description and guide development of a practice based intervention: refining the Namaste Care intervention implementation specification for people with advanced dementia prior to a feasibility cluster randomised trial
(2019-10-21)Background Some interventions are developed from practice, and implemented before evidence of effect is determined, or the intervention is fully specified. An example is Namaste Care, a multi-component intervention for ... -
The fox and the grapes : an Anglo-Irish perspective on conscientious objection to the supply of emergency hormonal contraception without prescription
(2013)Emergency hormonal contraception (EHC) has been available from pharmacies in the UK without prescription for 11 years. In the Republic of Ireland this service was made available in 2011. In both jurisdictions the respective ... -
FPGA based intelligent co-operative processor in memory architecture
(IAENG, International Association of Engineers, 2011-01-01)In a continuing effort to improve computer system performance, Processor-In-Memory (PIM) architecture has emerged as an alternative solution. PIM architecture incorporates computational units and control logic directly on ... -
FR Cnc revisited : photometry, polarimetry and spectroscopy
(2012-03)This paper is part of a multiwavelength study aimed at using complementary photometric, polarimetric and spectroscopic data to achieve an understanding of the activity process in late-type stars. Here, we present the study ... -
FR II radio galaxies at low frequencies I : morphology, magnetic field strength and energetics
(2016-06-01)Due to their steep spectra, low-frequency observations of FR II radio galaxies potentially provide key insights in to the morphology, energetics and spectrum of these powerful radio sources. However, limitations imposed ... -
FR II radio galaxies with z < 0.3 I. Properties of jets, cores and hotspots
(1998)In previous papers we have discussed high-resolution observations of a large sample of powerful radio galaxies with z < 0.3. Jets are detected in up to 80 per cent of the sample, and radio cores in nearly all the objects; ... -
FR II radio galaxies with z<0.3 -- II. Beaming and unification
(1999)In a previous paper we presented measurements of the properties of jets and cores in a large sample of FRII radio galaxies with z < 0.3. Here we test, by means of Monte Carlo simulations, the consistency of those data with ... -
FR-II radio galaxies at low frequencies II: spectral ageing and source dynamics
(2017-07-01)In this paper, the second in a series investigating FR II radio galaxies at low frequencies, we use LOFAR and VLA observations between 117 and 456 MHz in addition to archival data to determine the dynamics and energetics ... -
Fractal Analyses of Gait Variability During a Marathon
(2021-08-06)Detrended fluctuation analysis (DFA) and Higuchi’s fractal dimension (HG) have previously been used to characterise motor control during gait. However, there is limited evidence of either being applied to running gait ... -
Fractalkine cleavage from neuronal membranes represents an acute event in the inflammatory response to excitotoxic brain damage
(2000-08-01)Fractalkine is a recently identified chemokine that exhibits cell adhesion and chemoattractive properties. It represents a unique member of the chemokine superfamily because it is located predominantly in the brain in which ... -
Fractalkine is expressed by smooth muscle cells in response to IFN-gamma and TNF-alpha and is modulated by metalloproteinase activity
(2002-01-15)Fractalkine/CX3C-chemokine ligand 1 is expressed as a membrane-spanning adhesion molecule that can be cleaved from the cell surface to produce a soluble chemoattractant. Within the vasculature, fractalkine is known to be ... -
The Fraction of DA White Dwarfs with Kilo-Gauss Magnetic Fields
(Astronomical Society of the Pacific, 2007)Current estimates for white dwarfs with fields in excess of 1MG are about 10%; according to our first high-precision circular-polarimetric study of 12 bright white dwarfs with the VLT (Aznar Cuadrado et al. 2004) this ... -
Fractional memristor
(2017-12-11)Based on the differential conformal transformation in the fractional order, we defined the fractional memristor in contrast to the traditional (integer-order) memristor. As an example, a typical spin-transfer torque (STT) ... -
Frailty and the psychosocial components of the edmonton frail scale are most associated with patient experience in older kidney transplant candidates – a secondary analysis within the kidney transplantation in older people (KTOP) study
(2023-01-17)Background: Older people with end-stage kidney disease (ESKD) are vulnerable to frailty, which impacts on clinical and experiential outcomes. With kidney transplantation in older people increasing, a better understanding ...