Browsing University of Hertfordshire by Title
Now showing items 2359-2378 of 24235
-
Calcium influx stimulated by activation of ATP receptors on sensory neurons from rat dorsal root ganglia
(1991)A combination of microspectrofluorimetry and single cell voltage-clamp was used to examine the response to ATP of cultured neurons from rat dorsal root ganglia. ATP activated an inward current and a rise in internal calcium ... -
Calcium nitrate as a remedy for salt-stressed cucumber plants
(2002)The effect of calcium nitrate [Ca(NO)] on growth and yield of cucumber (Cucumis sativus L. cv. Beit Alpha F1) plants grown in containers under high root-zone salinity was investigated. Treatments were: 1) control (C): soil ... -
Calcium- and myosin-dependent changes in troponin structure during activation of heart muscle
(2009)Each heartbeat is triggered by a pulse of intracellular calcium ions which bind to troponin on the actin-containing thin filaments of heart muscle cells, initiating a change in filament structure that allows myosin to bind ... -
Calculated densities of H3O+(H2O)n,NO2− (H2O)n, CO3− (H2O)n and electron in the nighttime ionosphere of Mars : Impact of solar wind electron and galactic cosmic rays
(2007-12-01)We have calculated the densities of positive ions and negative ions in the ionosphere of Mars at solar zenith angle 106° between height interval 0 km and 220 km. This model couples ion-neutral, electron neutral, dissociation ... -
Calculating WCET Estimates from Timed Traces
(2015-09-01)Real-time systems engineers face a daunting duty: They must ensure that each task in their system can always meet its deadline. To analyse schedulability they must know the worst-case execution time (WCET) of each task. ... -
Calculation of critical speed from raw training data in recreational marathon runners
(2020-12-01)INTRODUCTION: Critical speed (CS) represents the highest intensity at which a physiological steady state may be reached. The aim of this study was to evaluate whether estimations of CS obtained from raw training data can ... -
Calculation of the Astrophysical S-Factor and Reaction-Rate for L-8(ALPHA,N0)B-11
(ADAM HILGER LTD, 1992) -
Calculation of the He-3(He-3, 2p)He-4 AND H-3(H-3, 2N)He-4 astrophysical S-factor at low energies
(1992-08)We have calculated the cross sections for the charge symmetric reactions He-3(He-3,2p)He-4 and He-3(He-3,2p)He-4 at sub-Coulomb energies in the potential model. Good agreement with the experimental data is obtained. The ... -
Calculations of fission rates for r-process nucleosynthesis
(2005-01-24)Fission plays an important role in the r-process which is responsible; not only for the yields of transuranium isotopes, but may have a strong influence on the formation of the majority of heavy nuclei due to fission ... -
Calculations of nuclear reactions of astrophysical interest involving unstable nuclei
(Editions Frontieres, 1995) -
Calculations of Periodicity From H Alpha Profiles of Proxima Centauri
(2017-01-25)In this report the stellar rotation signal for Proxima Centauri is investigated. High-resolution spectra taken with UVES and HARPS of Proxima Centauri over a 13-year period is used as well as photometric observations of ... -
Calculations of periodicity from Halpha profiles of Proxima Centauri
(2017-06-07)We investigate retrieval of the stellar rotation signal for Proxima Centauri. We make use of high-resolution spectra taken with UVES and HARPS of Proxima Centauri over a 13-yr period as well as photometric observations of ... -
Calibrated and completeness-corrected optical stellar density maps of the Northern Galactic Plane
(2016-03-21)Following on from the second release of calibrated photometry from IPHAS, the INT/WFC Photometric Hα Survey of the Northern Galactic Plane, we present incompleteness-corrected stellar density maps in the r and i photometric ... -
Calibrating program slicing metrics for practical use.
(Institute of Electrical and Electronics Engineers (IEEE), 2009) -
Calibrating the relation of low-frequency radio continuum to star formation rate at 1 kpc scale with LOFAR
(2018-10-15)Radio continuum (RC) emission in galaxies allows us to measure star formation rates (SFRs) unaffected by extinction due to dust, of which the low-frequency part is uncontaminated from thermal (free-free) emission. We ... -
Calibration and Stokes Imaging with Full Embedded Element Primary Beam Model for the Murchison Widefield Array
(2017-11-27)The Murchison Widefield Array (MWA), located in Western Australia, is one of the low-frequency precursors of the international Square Kilometre Array (SKA) project. In addition to pursuing its own ambitious science program, ... -
Calibration of a high spectral resolution lidar using a michelson interferometer, with data examples from ORACLES
(2018-07-17)The NASA Langley airborne second-generation High Spectral Resolution Lidar (HSRL-2) uses a density-tuned field-widened Michelson interferometer to implement the HSRL technique at 355 nm. The Michelson interferometer optically ...