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440 Newest Publications in proceedings of the national academy of sciences current issue

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matching the following criteria

Base-enhanced catalytic water oxidation by a carboxylate-bipyridine Ru(II) complex [Chemistry]

21-Apr-2015 | Na Song; Javier J. Concepcion; Robert A. Binstead; Jennifer A. Rudd; Aaron K. Vannucci; Christopher J. Dares; Michae ..., Proceedings of the National Academy of Sciences current issue, 2015

In aqueous solution above pH 2.4 with 4% (vol/vol) CH3CN, the complex [RuII(bda)(isoq)2] (bda is 2,2′-bipyridine-6,6′-dicarboxylate; isoq is isoquinoline) exists as the open-arm chelate, [RuII(CO2-bpy-CO2−)(isoq)2(NCCH3)], as shown by 1H and 13C-NMR, X-ray crystallography, and pH titrations. ...

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Sponge symbionts and the marine P cycle [Ecology]

07-Apr-2015 | Albert S. Colman, Proceedings of the National Academy of Sciences current issue, 2015

Marine sponges are ubiquitous colonizers of shallow, clear-water environments in the oceans (1, 2). Sponges have emerged as significant mediators of biogeochemical fluxes in coastal zones by virtue of respiring organic matter and facilitating both the consumption and release of nutrients (3, 4). ...

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Gait and speed selection in slender inertial swimmers [Biophysics and Computational Biology]

31-Mar-2015 | Mattia Gazzola; Médéric Argentina; L. Mahadevan, Proceedings of the National Academy of Sciences current issue, 2015

Inertial swimmers use flexural movements to push water and generate thrust. We quantify this dynamical process for a slender body in a fluid by accounting for passive elasticity and hydrodynamics and active muscular force generation and proprioception. Our coupled elastohydrodynamic model takes ...

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Correction for Torella et al., Efficient solar-to-fuels production from a hybrid microbial-water-splitting catalyst system [Correction]

24-Mar-2015 | Proceedings of the National Academy of Sciences current issue, 2015

CHEMISTRY, SYSTEMS BIOLOGY Correction for “Efficient solar-to-fuels production from a hybrid microbial–water-splitting catalyst system,” by Joseph P. Torella, Christopher J. Gagliardi, Janice S. Chen, D. Kwabena Bediako, Brendan Colón, Jeffery C. Way, Pamela A. Silver, and Daniel G. Nocera, which ...

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In This Issue [This Week in PNAS]

24-Mar-2015 | Proceedings of the National Academy of Sciences current issue, 2015

Methane-rich groundwater contributes to emissions from Arctic lakes At Lake Toolik, Alaska, exogenous methane in groundwater affects the overall lake methane budget. Arctic lakes emit methane into the atmosphere that mainly originates from the action of microbes in the water column and sediments. ...

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Hadal biosphere: Insight into the microbial ecosystem in the deepest ocean on Earth [Ecology]

17-Mar-2015 | Takuro Nunoura; Yoshihiro Takaki; Miho Hirai; Shigeru Shimamura; Akiko Makabe; Osamu Koide; Tohru Kikuchi; Junichi M ..., Proceedings of the National Academy of Sciences current issue, 2015

Hadal oceans at water depths below 6,000 m are the least-explored aquatic biosphere. The Challenger Deep, located in the western equatorial Pacific, with a water depth of ∼11 km, is the deepest ocean on Earth. Microbial communities associated with waters from the sea surface to the trench bottom ...

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Visualizing monolayers with a water-soluble fluorophore to quantify adsorption, desorption, and the double layer [Engineering]

24-Feb-2015 | Ian C. Shieh; Joseph A. Zasadzinski, Proceedings of the National Academy of Sciences current issue, 2015

Contrast in confocal microscopy of phase-separated monolayers at the air–water interface can be generated by the selective adsorption of water-soluble fluorescent dyes to disordered monolayer phases. Optical sectioning minimizes the fluorescence signal from the subphase, whereas convolution of ...

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Correction for Swierk et al., Metal-free organic sensitizers for use in water-splitting dye-sensitized photoelectrochemical cells [Correction]

24-Feb-2015 | Proceedings of the National Academy of Sciences current issue, 2015

CHEMISTRY Correction for “Metal-free organic sensitizers for use in water-splitting dye-sensitized photoelectrochemical cells,” by John R. Swierk, Dalvin D. Méndez-Hernádez, Nicholas S. McCool, Paul Liddell, Yuichi Terazono, Ian Pahk, John J. Tomlin, Nolan V. Oster, Thomas A. Moore, Ana L. Moore, ...

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Efficient solar-to-fuels production from a hybrid microbial-water-splitting catalyst system [Systems Biology]

24-Feb-2015 | Joseph P. Torella; Christopher J. Gagliardi; Janice S. Chen; D. Kwabena Bediako; Brendan Colón; Jeffery C. Way; Pame ..., Proceedings of the National Academy of Sciences current issue, 2015

Photovoltaic cells have considerable potential to satisfy future renewable-energy needs, but efficient and scalable methods of storing the intermittent electricity they produce are required for the large-scale implementation of solar energy. Current solar-to-fuels storage cycles based on water ...

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Sulfur-cycling fossil bacteria from the 1.8-Ga Duck Creek Formation provide promising evidence of evolution's null hypothesis [Earth, Atmospheric, and Planetary Sciences]

17-Feb-2015 | J. William Schopf; Anatoliy B. Kudryavtsev; Malcolm R. Walter; Martin J. Van Kranendonk; Kenneth H. Williford; Reinh ..., Proceedings of the National Academy of Sciences current issue, 2015

The recent discovery of a deep-water sulfur-cycling microbial biota in the ∼2.3-Ga Western Australian Turee Creek Group opened a new window to life's early history. We now report a second such subseafloor-inhabiting community from the Western Australian ∼1.8-Ga Duck Creek Formation. ...

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