838 research outputs found
The P450 oxidoreductase, RedA, controls development beyond the mound stage in -5
No full text<p><b>Copyright information:</b></p><p>Taken from "The P450 oxidoreductase, RedA, controls development beyond the mound stage in "</p><p>http://www.biomedcentral.com/1471-213X/8/8</p><p>BMC Developmental Biology 2008;8():8-8.</p><p>Published online 24 Jan 2008</p><p>PMCID:PMC2257935.</p><p></p> at the indicated proportions. At the indicated times (h) after starvation cells were photographed
An Empirical Model for the Dayside Magnetospheric Plasma Mass Density Derived From EMMA Magnetometer Network Observations
No full textThe P450 oxidoreductase, RedA, controls development beyond the mound stage in -1
No full text<p><b>Copyright information:</b></p><p>Taken from "The P450 oxidoreductase, RedA, controls development beyond the mound stage in "</p><p>http://www.biomedcentral.com/1471-213X/8/8</p><p>BMC Developmental Biology 2008;8():8-8.</p><p>Published online 24 Jan 2008</p><p>PMCID:PMC2257935.</p><p></p> at the indicated times (h) after starvation. Identical Northern blots of total RNA samples were probed with , IG7 and cDNAs as indicated. IG7 transcript is expressed at similar levels throughout the development [59]
The P450 oxidoreductase, RedA, controls development beyond the mound stage in -6
No full text<p><b>Copyright information:</b></p><p>Taken from "The P450 oxidoreductase, RedA, controls development beyond the mound stage in "</p><p>http://www.biomedcentral.com/1471-213X/8/8</p><p>BMC Developmental Biology 2008;8():8-8.</p><p>Published online 24 Jan 2008</p><p>PMCID:PMC2257935.</p><p></p>nalyzed using a UV/Visible spectrophotometer. The arrow points the absorption peak at 400 nm observed in the cell extract
Observing the cold plasma in the Earth\u27s magnetosphere with the EMMA network
No full textWe illustrate a semi-automated procedure to detect the field line resonance (FLR) frequencies and the derived equatorial plasma mass densities in the inner magnetosphere from ULF measurements recorded at the European quasi-Meridional Magnetometer Array (EMMA). FLR frequencies are detected using the standard technique based on cross-phase and amplitude ratio spectra from pairs of stations latitudinally separated. Equatorial plasma mass densities are then inferred by solving the toroidal MHD wave equation using the TS05 Tsyganenko magnetic field model and assuming a 1/r dependence of the mass density along the field line. We also present a statistical analysis of the results obtained from 165 non-consecutive days of observations at 8 station pairs covering the range of magnetic L-shells 2.4-5.5 and encompassing a wide range of geomagnetic conditions. The rate of FLR detection maximizes around local noon at each pair of stations, reaching the highest values (~95%) around L = 3. A clear diurnal modulation of the FLR frequency is observed at all L values. At the lowest latitudes, the variation is characterized by a rapid decrease in the early morning hours, a stagnation in the middle of the day, and an increase in the evening hours. At higher latitudes, a continuous and more pronounced decrease of the FLR frequency is observed during all daytime hours reflecting a permanent state of recovery of flux tubes depleted by events of enhanced magnetospheric convection. Consistently, the radial profiles of the inferred equatorial mass density show a density increase from morning to afternoon which gets more pronounced with increasing distance and with the level of the preceding geomagnetic activity. The results also confirm the formation of the plasmapause at geocentric distances that decrease as the disturbance level increases. Mean mass density distributions in the equatorial plane are also shown in 2-D maps for different geomagnetic conditions, as well as for a representative stormy day
What Does It Mean to Say That Procedure Is Political?
No full textProcedure is not the first field of law to face controversy along these lines. Law’s independence from politics, in both its descriptive and normative aspects, is a century long legal challenge.9 This Article aims to clarify what we mean when we characterize procedure as political, as well as to understand some of the harms generated by failing to confront and acknowledge the political. This is a preliminary step in approaching future formulations of procedural rules if they cannot be depoliticized
The P450 oxidoreductase, RedA, controls development beyond the mound stage in -4
No full text<p><b>Copyright information:</b></p><p>Taken from "The P450 oxidoreductase, RedA, controls development beyond the mound stage in "</p><p>http://www.biomedcentral.com/1471-213X/8/8</p><p>BMC Developmental Biology 2008;8():8-8.</p><p>Published online 24 Jan 2008</p><p>PMCID:PMC2257935.</p><p></p>independent clones of the mutants and -KO. Identical Northern blots were probed with and IG7 cDNAs as indicated. Exponentially growing cells (Veg) were starved on filter pads and harvested at the indicated times (h) after starvation. Identical Northern blots of total RNA samples were probed with , IG7 and cDNAs as indicated
The P450 oxidoreductase, RedA, controls development beyond the mound stage in -2
No full text<p><b>Copyright information:</b></p><p>Taken from "The P450 oxidoreductase, RedA, controls development beyond the mound stage in "</p><p>http://www.biomedcentral.com/1471-213X/8/8</p><p>BMC Developmental Biology 2008;8():8-8.</p><p>Published online 24 Jan 2008</p><p>PMCID:PMC2257935.</p><p></p>t the indicated times (h) after starvation. Transcript levels for , and genes are relative to 0 h cells. Fold change for are relative to transcript levels detected at 16 h. Error bars represent the standard deviation from two independent experiments where qPCR assays were performed in triplicate
Multi-regression analysis between stable isotope composition and hydrochemical parameters in karst springs to provide insights into groundwater origin and subsurface processes: regional application to Lebanon
No full textJoint applications of isotope characterization using δ2H, δ18O and geochemical analyses have allowed for a better conceptualization of hydrological systems and helped in the evaluation and management of water resources. Processes of infiltration, and evapotranspiration (ETP), as well as mixing in the unsaturated zone, incur changes in the meteoric δ2H-δ18O signal that is transferred to groundwater during recharge. Previous studies on the isotopic composition of atmospheric precipitation highlight the importance of rainwater differentiation in terms of chemical composition and isotopic signature as a function of topographical and orographic variations as well as natural and anthropogenic impacts and identified altitude gradients for both δ2H and δ18O. In this work, a comparative correlative analysis of stable oxygen and deuterium isotopes was conducted on selected Lebanese springs. At the first stage, a hydrochemical analysis allowed the characterization of the springs and their clustering according to their predominant ionic content and aquifer units. Additionally, a multi-regression analysis reveals a relationship between hydrogen and oxygen isotopes and other easily measured parameters at the spring such as temperature, electrical conductivity, elevation, and easting and northing. The obtained relationship validated on a second campaign was attributed qualitatively to the extent and elevation of the spring catchment, the depth of flow, mixing, the snow effect, and residence time. Moreover, outliers characterized by a very large catchment area or allochthonous recharge could be outlined in the set of investigated springs. The results show that the stable isotopic signature indicative of recharge areas can be inferred based on easily measured spring parameters and can, therefore, help in the identification of protection zones and direct areas of spring recharge from a regional dataset. © 2021, The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature
Comparing the Dynamic Global Core Plasma Model (DGCPM) With Ground-Based Plasma Mass Density Observations
No full textThe Dynamic Global Core Plasma Model (DGCPM) is an empirical dynamical model of the plasmasphere which, despite its simple mathematical form, or perhaps because of its simple mathematical form, has enjoyed wide use in the space physics modeling community. In this paper we present some recent observations from the European quasi-Meridional Magnetometer Array (EMMA) and compare these with the DGCPM. The observations suggest more rapid daytime refilling and loss than what is described in the DGCPM. We then modify the DGCPM by changing the values of some of its parameters, leaving the functional form intact. The modified DGCPM agrees much better with the EMMA observations. The modification resulted in an order-of-magnitude faster daytime refilling and nighttime loss. These results are also consistent with previous observations of daytime refilling
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