Sentences with phrase «spatial distribution at»

Plus there's really not enough good stations with enough spatial distribution at that sample size.

Not exact matches

«To our knowledge, we are the only research group to use sequential human biopsies to study CD8 + T cell function in situ, in their natural spatial distribution and at their original physiological state,» she said.

With ALMA, an international team lead by Yoko Oya, a graduate student of Department of Physics, The University of Tokyo, and Nami Sakai, an associate chief scientist of RIKEN, studied the distribution of various organic molecules around a Solar - type protostar IRAS 16293 - 2422A at a high spatial resolution.

Since the neutron star propagates with an estimated speed of at least 350 kilometers per second, the asymmetry in the spatial distribution of the radioactive elements is expected to be very pronounced.

Resolving the spatial distribution of the human proteome at a subcellular level greatly increases our understanding of human biology and disease.

The results indicate that although land - use change is currently considered as the major driver of pollinator declines in Europe, climate is the most important factor limiting the distribution of pollinators at large spatial scales.

The results show that (i) the proteins and RNA are intermingled, with neither component dominating at the core or the periphery, and (ii) the spatial distribution of protein and RNA is asymmetrical, with a separation between their centers of mass of about 25 angstroms.

Spatial fingerprints of climate change on biotic communities are usually associated with changes in the distribution of species at their latitudinal or altitudinal extremes.

This spatial distribution places them at risk of severe damage by tropical cyclones.

To find out the specific metabolic pathways affected by disease or stress, the Tufts scientists looked at three parameters: the ratio of FAD to NADH, the fluorescence «fade» of NADH, and the organization of the mitochondria as revealed by the spatial distribution of NADH within a cell (the energy producing «batteries» of the cell).

«By comparing the measured craters to the number and spatial distribution of large impact basins on Mercury, we found that they started to accumulate at about the same time, suggesting that the resetting of Mercury's surface was global and likely due to volcanism,» said lead author Dr. Simone Marchi, who has a joint appointment between two of NASA's Lunar Science Institutes, one at the SwRI in Boulder and another at the Lunar and Planetary Institute in Houston.

Spatial distribution of factor Xa, thrombin, and fibrin (ogen) on thrombi at venous shear.

The aim of the present investigation is twofold: to determine the optical and material properties of the debris and to infer the spatial distribution of the dust, which may hint at the presence of additional planets.

It begins with resources that set the context at the national scale and then starts to delve deeper at local scale factors where the spatial distribution of elderly impacts both rural and urban areas.

You know, one of the more pronounced aspects of your work, in addition to what we just discussed, is the way you find a balance between the accident and the control, the formal and the content of images, which concerns the distribution of negative and positive shapes in their spatial organization, as well as how you integrate graphic elements with pictorial forms all at once.

Just as the distribution and presentation sites she has used (e.g. maga - zines, posters) are characterized by a certain transience and intensified circulation, so too Kruger often insists on the ephemeral physical status of her works, since her wall and large - scale spatial installations are usually destroyed at the end of an exhibition.

Between 1901 and 2010, global sea levels rose by 0.19 ± 0.02 m, albeit at varying rates and spatial distribution (Church et al. 2013)-- these past values (including their uncertainty) are potentially much smaller than those associated with future projections.

Different time spans (in the range 10 — 50 yr) for the EOF spatial patterns, and different geographical distributions for the 1 - D thermosteric sea level time series (interpolated at specific locations from the 2 - D grids), are successively used to reconstruct the 54 - year long thermosteric sea level signal.

There is a lot of evidence already of behavioural «adaptation» (at least changes in spatial and temporal distributions [e.g., flowering time]-RRB- to the last couple of decades» warmth.

If the optical thickness and temperature distributions are such that the dominant spatial tendency in temperature is to either increase or decrease (as opposed to fluctuate) from a location out to a substantial optical thickness away, then farther increases in optical thickness will bring the flux and intensities coming from that direction toward the values they would have for a blackbody with a temperature equal to the temperature at that location.

Spatial distribution of multi-year ice concentration (in tenths) within the Western Parry Channel region of the Northwest Passage at the end of May.

As a prototyping exercise for the moderate ‐ resolution imaging spectroradiometer (MODIS) albedo / BRDF product, we demonstrate the retrieval of bidirectional reflectance distribution functions (BRDFs) and red spectral albedo measures for the New England region, United States, from merged AVHRR and GOES radiances at a 1 km2 (nominal) spatial scale.

The spatial distribution of sites is limited at present — because they need to be placed directly on rocky outcrops — and there are only a few such sites in East Antarctica.

Cristina L. Archer and Mark Z. Jacobson, «Spatial and Temporal Distributions of U.S. Winds and Wind Power at 80 m Derived From Measurements,» in American Geophysical Union, Journal of Geophysical Research, vol.

Howell and Agnew make the point that the ice in the NWP and the surrounding regions is mobile during the summer, and as a result the spatial distribution of multi-year ice at the beginning of the season can be used to predict whether or not the NWP could be ice - free in September.

The equations for Rossby waves (Calculation of the Meridional Wave Number, Physics of the Parameter, and Calculation of the Amplitudes) show that this can occur if a set of necessary conditions are met: u ¯ > 0 in the midlatitude region; the highest value of l within the waveguide is in the range of the meridional wave numbers lm dominantly contributing to the external forcing with a given m, which provides closeness of the k waves to respective m waves not only in terms of the zonal but also the meridional wave numbers, favoring the QRA of the m waves; the total latitudinal width of the waveguide is no less than the characteristic spatial scale of the relevant Airy function (25), which is used as the boundary condition at its southern and northern boundaries; and latitudinal distribution of l is sufficiently smooth in the waveguide, and both TPs lie within a midlatitude region of ∼ 25 ° N — 30 ° N and ∼ 65 ° N − 70 ° N, as the necessary condition for the application of quasilinear Wentzel − Kramers − Brillouin (WKB) method (25) when solving the equations for Rossby waves.

D. L. Elliott, L. L. Wendell, and G. L. Gower, An Assessment of the Available Windy Land Area and Wind Energy Potential in the Contiguous United States (Richland, WA: Pacific Northwest Laboratory, 1991); C. L. Archer and M. Z. Jacobson, «The Spatial and Temporal Distributions of U.S. Winds and Wind Power at 80 m Derived from Measurements,» Journal of Geophysical Research, 16 May 2003.

Looking at the spatial and temporal distribution of global water availability and demand.

I don't mean to put down Spencer's work by pointing this out — this kind of «zero - dimensional» climate model is very commonly used by scientists as a first - order approximation of how the system behaves, at least in situations where they aren't bothering to look at the spatial distribution of climate effects.

tallbloke says: August 7, 2011 at 9:35 am «We calculate its strength and spatial distribution for the strongest case («vertical») and for weaker horizontal cases whose motions are all perpendicular to gravity.

Further affirmation of the reality of the warming is its spatial distribution, which has largest values at locations remote from any local human influence, with a global pattern consistent with that expected for response to global climate forcings (larger in the Northern Hemisphere than the Southern Hemisphere, larger at high latitudes than low latitudes, larger over land than over ocean).

Hansen 2005 concluded that, at least for climate forcing agents over the historical period, Fs was a good measure of the effective forcing (the product of a forcing, however defined, and the efficacy taken relative thereto), notwithstanding that some forcings had different spatial distributions from others.

In 1994 Lindzen stated his thoughts concerning the constraints on the spatial temperature distribution at the Earth's surface in a paper he co-authored with Sun.