To use all functions of this page, please activate cookies in your browser.
My watch list
my.chemeurope.com
my.chemeurope.com
With an accout for my.chemeurope.com you can always see everything at a glance – and you can configure your own website and individual newsletter.
- My watch list
- My saved searches
- My saved topics
- My newsletter
352 Newest Publications in proceedings of the national academy of sciences current issue
rss
matching the following criteria
In This Issue [This Week in PNAS]
14-05-2013 | Proceedings of the National Academy of Sciences current issue, 2013
Leaping drops of water help keep cicada wings cleanpnas;110/20/7961/UNFIG01F1unfig01Particles aggregate and jump off a cicada wing during vapor condensation.Like the leaves of the lotus plant, highly water-repellent surfaces known as superhydrophobic surfaces exhibit a remarkable ability to ...
Degassing of reduced carbon from planetary basalts [Earth, Atmospheric, and Planetary Sciences]
14-05-2013 | Diane T. Wetzel; Malcolm J. Rutherford; Steven D. Jacobsen; Erik H. Hauri; Alberto E. Saal, Proceedings of the National Academy of Sciences current issue, 2013
Degassing of planetary interiors through surface volcanism plays an important role in the evolution of planetary bodies and atmospheres. On Earth, carbon dioxide and water are the primary volatile species in magmas. However, little is known about the speciation and degassing of carbon in ...
Self-cleaning of superhydrophobic surfaces by self-propelled jumping condensate [Applied Physical Sciences]
14-05-2013 | Katrina M. Wisdom; Jolanta A. Watson; Xiaopeng Qu; Fangjie Liu; Gregory S. Watson; Chuan-Hua Chen, Proceedings of the National Academy of Sciences current issue, 2013
The self-cleaning function of superhydrophobic surfaces is conventionally attributed to the removal of contaminating particles by impacting or rolling water droplets, which implies the action of external forces such as gravity. Here, we demonstrate a unique self-cleaning mechanism whereby the ...
Transient formation of water-conducting states in membrane transporters [Biophysics and Computational Biology]
07-05-2013 | Jing Li; Saher A. Shaikh; Giray Enkavi; Po-Chao Wen; Zhijian Huang; Emad Tajkhorshid, Proceedings of the National Academy of Sciences current issue, 2013
Membrane transporters rely on highly coordinated structural transitions between major conformational states for their function, to prevent simultaneous access of the substrate binding site to both sides of the membrane—a mode of operation known as the alternating access model. Although this ...
Dielectric properties of water under extreme conditions and transport of carbonates in the deep Earth [Chemistry]
23-04-2013 | Ding Pan; Leonardo Spanu; Brandon Harrison; Dimitri A. Sverjensky; Giulia Galli, Proceedings of the National Academy of Sciences current issue, 2013
Water is a major component of fluids in the Earth’s mantle, where its properties are substantially different from those at ambient conditions. At the pressures and temperatures of the mantle, experiments on aqueous fluids are challenging, and several fundamental properties of water are poorly ...
Deep water gives up another secret [Chemistry]
23-04-2013 | Craig E. Manning, Proceedings of the National Academy of Sciences current issue, 2013
Just as water is essential for life as we know it, so too is it critical to our planet’s inner workings. In PNAS, Pan et al. (1) report results that constrain one of water’s most important properties at deep-earth conditions: its dielectric constant. A host of geologic processes signal water’s...
In This Issue [This Week in PNAS]
23-04-2013 | Proceedings of the National Academy of Sciences current issue, 2013
Dielectric constant of mantle water helps predict carbonate solubilitypnas;110/17/6609/UNFIG01F1unfig01Schematic depicting water and a carbonate ion under high pressure.Water exhibits substantially different properties at high temperatures and pressures from those observed at ambient ...
Memory reconsolidation and its maintenance depend on L-voltage-dependent calcium channels and CaMKII functions regulating protein turnover in the hippocampus [Neuroscience]
16-04-2013 | Weber Cláudio Da Silva; Gabriela Cardoso; Juliana Sartori Bonini; Fernando Benetti; Ivan Izquierdo, Proceedings of the National Academy of Sciences current issue, 2013
Immediate postretrieval bilateral blockade of long-acting voltage–dependent calcium channels (L-VDCCs), but not of glutamatergic NMDA receptors, in the dorsal CA1 region of the hippocampus hinders retention of long-term spatial memory in the Morris water maze. Immediate postretrieval ...
Microscopic structure of water at elevated pressures and temperatures [Physics]
16-04-2013 | Christoph J. Sahle; Christian Sternemann; Christian Schmidt; Susi Lehtola; Sandro Jahn; Laura Simonelli; Simo Huotar ..., Proceedings of the National Academy of Sciences current issue, 2013
We report on the microscopic structure of water at sub- and supercritical conditions studied using X-ray Raman spectroscopy, ab initio molecular dynamics simulations, and density functional theory. Systematic changes in the X-ray Raman spectra with increasing pressure and temperature are ...
Emergent relation between surface vapor conductance and relative humidity profiles yields evaporation rates from weather data [Ecology]
16-04-2013 | Guido D. Salvucci; Pierre Gentine, Proceedings of the National Academy of Sciences current issue, 2013
The ability to predict terrestrial evapotranspiration (E) is limited by the complexity of rate-limiting pathways as water moves through the soil, vegetation (roots, xylem, stomata), canopy air space, and the atmospheric boundary layer. The impossibility of specifying the numerous parameters ...
Netmeeting
