The problem of improving the environment by rational use natural resources is currently very relevant. By means theoretical and experimental metrological aerodynamic studies, infiltration processes between internal external air during wind flow around buildings erected on complex terrain, as well adjacent territories residential development, are established, which allows us to assess heat loss ...

Abstract We use a mathematical model to investigate the effect of basal topography and ice surface slope on transport deposition sediment within water-filled subglacial channel. In our model, three zones different behaviour occur. zone furthest upstream, variations in lead under wide range conditions. this first zone, even very small gradually varying undulations (~5 m amplitude) can modelled D...

Due to climate warming, forests are expanding higher elevations and latitudes at the expense of tundra vegetation. While subsequent increase in aboveground biomass is well-documented, there much speculation regarding effects on soil organic carbon (SOC) stocks. To provide insight into consequences tree encroachment treeless tundra, we sampled SOC stocks across 36 forest-tundra ecotones along a ...

Channel steepness index, ks, is a metric derived from the stream power model that, under certain conditions, scales with relative rock uplift rate. index property of rivers, which can be relatively easily extracted digital elevation models (DEMs). As DEM data sets are widely available for Earth and becoming more readily other planetary bodies, channel represents powerful tool interpreting tecto...

BACKGROUND Health inequalities reflect multidimensional inequality (income, education, and other indicators of socioeconomic position) and vary across countries and welfare regimes. To which extent there is intergenerational transmission of health via parental socioeconomic status has rarely been investigated in comparative perspective. The study sought to explore if different measures of strat...

The hypothesis that availability of functional Ca channels in vascular smooth muscle is augmented in hypertension was tested in basilar artery cells from Wistar rats exhibiting stable systolic blood pressure (BPsys) for 2 to 11 weeks after partial renal artery ligation (Goldblatt 2-kidney 1-clip [2K1C] model). Cells were freshly isolated and patch-clamped using a nystatin–perforated patch metho...

The intrinsic luminosity functions of extremely fast jets found in many active galaxies and gamma-ray bursts are difficult to measure since their apparent luminosities are strongly affected by relativistic beaming. Past studies have only provided analytical predictions for the beamed characteristics of populations in which all jets have the same Lorentz factor. However, the jets found in active...

Ion and voltage dependencies of sodium-calcium exchange current were studied in giant membrane patches from guinea pig ventricular cells after deregulation of the exchanger with chymotrypsin. (a) Under zero-trans conditions, the half-maximum concentration (Kh) of cytoplasmic calcium (Cai) for activation of the isolated inward exchange current decreased as the extracellular sodium (Nao) concentr...

Gain modulation is a key feature of neural information processing, but underlying mechanisms remain unclear. In single neurons, gain can be measured as the slope of the current-frequency (input-output) relationship over any given range of inputs. While much work has focused on the control of basal firing rates and spike rate adaptation, gain control has been relatively unstudied. Of the limited...