Results 51 to 60 of about 572,691 (264)

Winter air temperature in Holocene reconstructed from the ice wedges stable water isotopes near Anadyr town

Лëд и снег, 2019
The object of research is syncryogenic Holocene strata on the coast of the Onemen Bay, 2 km from the town of Anadyr. In July 2017, the outcrop of the first marine terrace uncovered by strong storms was examined.
N. A. Budantseva, Yu. A. Vasil'chuk
doaj   +1 more source

Single‐Particle FRET Probes Heterogeneity in the Ligand Shell of Colloidal Perovskite Quantum Dots

Advanced Materials, EarlyView.
Single‐particle, single‐molecule Förster resonance energy transfer turns dye‐tagged ligands into nanorulers for the otherwise elusive organic shell of CsPbBr3 quantum dots. Distance variations within individual particles reveal pronounced local heterogeneity, while changes in the surrounding ligand chemistry shift the average dye–surface separation ...
Leon G. Feld, Oleksandr Kolomiiets, Noah A. Shahin, Sebastian Sabisch, Amrutha Rajan, Gabriele Rainò, Maksym V. Kovalenko   +6 more
wiley   +1 more source

A 420,000 year deuterium excess record from East Antarctica: Information on past changes in the origin of precipitation at Vostok

, 2001
International audienceHere we present and analyze the complete Vostok ice cores deuterium excess record which spans the last four climatic cycles, back to-420,000 years B.P.
Delaygue, G., G. Delaygue, Jouzel, J., Petit, J.R., Stievenard, M., J. Jouzel, Vimeux, F., V. Masson, F. Vimeux, Masson, V., M. Stievenard, J. R. Petit   +11 more
core   +1 more source

Research on the hydrologic cycle characteristics using stable isotopes of oxygen and hydrogen in the Jinxiuchuan Basin

Tecnología y ciencias del agua, 2017
Wang, T., Xu, Z., Zhang, S., Zhang, L., & Zhao, Z. (MarchApril, 2017). Research on the hydrologic cycle characteristics using stable isotopes of oxygen and hydrogen in the Jinxiuchuan Basin.
Wang Tong, Xu Zhenghe, Zhang Shengdong, Zhang Lizhi, Zhao Zhiqiang   +4 more
doaj   +1 more source

Programmable Microgel Degradation in Dynamic Granular Hydrogels Guides Extracellular Matrix Assembly During Tissue Repair

Advanced Materials, EarlyView.
This study reports on the chemical modification of hyaluronic acid to create hydrogels with hydrolytic degradability ranging from 2–28 days. Granular hydrogels that undergo timed degradation to increase porosity enhance cell invasion and provisional ECM remodeling in a muscle injury model, leading to reduced fibrosis and improved regeneration ...
Zhiyuan Chen, Tuba Marjan, Xinyue Lu, Nicole E. Mertens, Keira Vesy, Dean E. Stornello, James F. Markworth, Taimoor H. Qazi   +7 more
wiley   +1 more source

Excess heat release during deuterium sorption-desorption by finely powdered palladium deuteride

, 2002
Thermal effects have been studied in the course of sorption-desorption of hydrogen isotopes by a finely powdered palladium deuteride using a differential scanning calorimeter DSC-111 SETARAM.
A. I. Khmelnikov, V. A. Drebushchak, V. A. Kirkinskii   +2 more
core   +1 more source

GRIP Deuterium Excess Reveals Rapid and Orbital-Scale Changes in Greenland Moisture Origin [PDF]

Science, 2005
The Northern Hemisphere hydrological cycle is a key factor coupling ice sheets, ocean circulation, and polar amplification of climate change. Here we present a Northern Hemisphere deuterium excess profile covering one climatic cycle, constructed with the use of δ 18 O and δD Greenland Ice Core Project (GRIP) records.
Masson-Delmotte, Valérie, Jouzel, J., Landais, A., Stievenard, M., Johnsen, S.J., White, J.W.C., Werner, M., Sveinbjörnsdottir, A., Fuhrer, K.   +8 more
openaire   +5 more sources

A Global Methane Observation System to Reduce Uncertainty for Anthropogenic and Natural Sources and Sinks for Detecting and Attributing Climate Feedbacks

Advanced Science, EarlyView.
Conceptual illustration of a Global Ecosystem Methane Observing System (GEM‐OS) integrating satellites, aircraft, atmospheric networks, and ecosystem measurements to quantify methane emissions from anthropogenic and natural sources. The multi‐scale observing framework improves source attribution, reduces uncertainty in regional methane budgets, and ...
P. Ciais, S. Peng, J. Chang, F. Li, Q. Zhu, K. Yuan, G. Hugelius, H. Li, Y. Cai, F. Chevallier, K. Tibrewal, E. A. Kort, K. Arndt, J. Watts, B. Buma, N. Besic, P. I. Palmer, H. Cadillo‐Quiroz, E. Euskirchen, M. J. Gondwe, A. Hoyt, R. Jackson, S. Malone, D. Monteverde, S. Natali, M. Ramonet, C. Rey‐Sanchez, L. B. Sagang, E. A. G. Schuur, R. Vargas, R. Varner, Z. Zhang, B. Poulter   +32 more
wiley   +1 more source

Decoding signature of water stable isotopes in Iran’s strategic aquifers

Journal of Hydrology: Regional Studies
Study region: Ten Iranian strategic aquifers Study focus: Groundwater is a critical component of Iran’s water supply, yet the environmental factors shaping the spatial variability of groundwater stable isotopes have not been comprehensively examined ...
Omid Karimi, Roohollah Noori, Saman Javadi, Bahram Choubin, Mojtaba Heydarizad, Aminreza Neshat, Severin Pistre   +6 more
doaj   +1 more source

Isotopic composition of precipitation at the station Ljubljana (Reaktor), Slovenia – period 2007–2010

Geologija, 2014
The stable isotopic composition of hydrogen and oxygen (δ2H and δ18O) and the tritium activity (A) were monitored in monthly collected precipitation at Ljubljana (Reaktor) during the period 2007–2010. Monthly and yearly isotope variations are discussed
Polona Vreča, Ines Krajcar Bronić, Albrecht Leis, Miha Demšar   +3 more
doaj   +1 more source