Results 61 to 70 of about 176,188,335 (190)

Brane-World Gravity [PDF]

, 2010
The observable universe could be a 1+3-surface (the “brane”) embedded in a 1+3+d-dimensional spacetime (the “bulk”), with Standard Model particles and fields trapped on the brane while gravity is free to access the bulk.
Roy Maartens, Kazuya Koyama, Maartens, Roy, Koyama, Kazuya   +3 more
core   +1 more source

Trait‐mediated thermal responses and multi‐axis spatiotemporal niche partitioning between coexisting top predators in ponds

Oikos, EarlyView.
Understanding how physiological constraints scale up to realized niche differences remains a central challenge in functional ecology. Temperature strongly influences metabolic performance, activity, and habitat selection in ectotherms, yet few field studies quantify how thermal responses interact with diel and habitat structure to shape predator ...
Jason R. Rohr
wiley   +1 more source

EnKF and expectation‐maximization based parameter estimation of a convective gravity‐wave parameterization using Strateole 2 constant‐level balloon data

Quarterly Journal of the Royal Meteorological Society, EarlyView.
An offline methodology is applied to estimate parameters of a convective gravity‐wave scheme using momentum flux (MF) observations from constant‐level balloons (left panels: pdfs of east and west MFs in green from observations and black from EnKF). The approach integrates an ensemble Kalman filter with an expectation‐maximization algorithm and permits ...
F. Lott, P. Tandeo, M. Pulido, D. Bardet
wiley   +1 more source

Dynamics and thermodynamics of the fast and slow Madden–Julian Oscillation

Quarterly Journal of the Royal Meteorological Society, EarlyView.
The results of this study highlight the MJO as a complex phenomenon, the behavior of which is driven by an interplay of thermodynamic and dynamic processes. The MJO's distinct speeds are controlled by different mechanisms: slow MJOs propagate eastward primarily via horizontal moisture advection, fast MJOs by vertical moisture advection.
Víctor C. Mayta, Ángel F. Adames Corraliza, Katharina M. Holube, Qiao‐Jun Lin   +3 more
wiley   +1 more source

Development and Evaluation of a Low‐Cost, Semi‐Automated Camera Trap for Surveying Bumble Bee Communities

Remote Sensing in Ecology and Conservation, EarlyView.
Camera traps are emerging as a useful tool for noninvasive insect monitoring; however, it remains unclear how to lure diurnal insects to traps, how to detect them upon arrival, and how camera‐based methods compare to conventional sampling. We developed a low‐cost, open‐source camera trap to monitor wild bumble bees in agricultural fields. We found that
Michael P. Getz, Lincoln R. Best, Oksana Ostroverkhova, Andony P. Melathopoulos, Timothy L. Warren   +4 more
wiley   +1 more source

New Findings on Actual and Potential Trade between Romania and the Russian Federation: A Gravity Approach [PDF]

The paper attempts to verify the hypothesis that Romanian exports to the Russian Federation are below their potential. We first looked at statistical data regarding bilateral trade, custom duties and foreign direct investment; the resulting conclusions ...
Dascalescu, Virgil, Ion, Irina, Nicolae, Elena   +2 more
core  

Integrated assessment of meteorological drought impacts on terrestrial water storage and vegetation dynamics in East Africa

River, EarlyView.
Abstract Water is essential for life, and effective hydrological management is crucial for economic stability and quality of life. Poor water resource governance can lead to scarcity, displacement, or even fatal consequences. Hydrological conditions in East Africa are influenced by drivers such as demographic expansion, industrialization, droughts, and
Mekuanint Eresho Wollebo, Yohannes Mehari Andiye, Tulu Besha Bedada   +2 more
wiley   +1 more source

Slow-light and evanescent modes at interfaces in photonic crystal waveguides: optimal extraction from experimental near-field measurements [PDF]

, 2011
We develop a systematic approach for simultaneous extraction of the dispersion relations and profiles of multiple modes in periodic waveguides though a special global optimization procedure applied to near-field electric field measurements in the ...
Ha, S., de Sterke, C. Martijn, Yuri S. Kivshar, Krauss, T.F., Sterke, C.M. de, Spasenovic, Marko, White, Tom P, Sukhorukov, Andrey A., Krauss, Thomas Fraser, Thomas F. Krauss, White, T.P., Sangwoo Ha, Kuipers, L.K. (Kobus), Sukhorukov, A.A., Kivshar, Y.S. (Yuri), Thomas P. White, Andrey A. Sukhorukov, Kuipers, L. Kobus, L. (Kobus) Kuipers, Spasenović, M., Marko Spasenović, C. Martijn de Sterke, Ha, Sangwoo, Kivshar, Yuri S.   +23 more
core   +1 more source

Peptide Terminated Polymer Brush Nanomaterials for Label‐Free Separation of Cancer Cells Based on Relative Adhesion

Small, EarlyView.
Horan et al. demonstrate that RGD peptide‐functionalized poly(ethylene glycol) brush films synthesized in polydimethylsiloxane microfluidic channels by surface‐initiated atom transfer radical polymerization enable label‐free separation of melanoma and ovarian cancer cells based on differential integrin expression.
Stephen Horan, Anita Wdowicz, Nathan Feely, Peng Li, Oya Tagit, Wenxin Wang, Gil U Lee   +6 more
wiley   +1 more source

The structure evolution and stability of NiW films electrodeposited under super gravity field

, 2010
The effect of super gravity field on the structure evolution of electrodeposited NiW films was studied. The results indicated that with the increase of gravity coefficient (G), W content in NiW films was increased and grain was refined.
Wang, Zhi, Wang, MY, Wang, Mingyong, Guo, Zhancheng   +3 more
core   +1 more source