Results 21 to 30 of about 1,845,174 (287)

Characterization of membrane protein function by solid-state NMR spectroscopy [PDF]

, 2014
Membrane proteins are an important class of biological molecules whose association with lipid bilayers and intrinsic molecular mobility can complicate their structural study by high-resolution methods.
Baldus, Marc, NMR Spectroscopy, Sub NMR Spectroscopy, Baker, Lindsay A.   +3 more
core   +1 more source

A 21 000-year record of fluorescent organic matter markers in the WAIS Divide ice core [PDF]

Climate of the Past, 2017
Englacial ice contains a significant reservoir of organic material (OM), preserving a chronological record of materials from Earth's past. Here, we investigate if OM composition surveys in ice core research can provide paleoecological information on the ...
J. D'Andrilli, C. M. Foreman, M. Sigl, J. C. Priscu, J. R. McConnell   +4 more
doaj   +1 more source

Elastic Constants of Ice by Brillouin Spectroscopy [PDF]

Journal of Glaciology, 1980
Abstract Brillouin spectroscopy has been used to measure the adiabatic elastic constants of laboratory-grown pure monocrystalline ice Ih at – 3°C. The values obtained were (in units of 10 8 N/m 2 ): c
P. H. Gammon, H. Kiefte, M. J. Clouter
openaire   +1 more source

Muon spin spectroscopy: magnetism, soft matter and the bridge between the two [PDF]

, 2014
LS would like to acknowledge financial support from the Swiss National Science Foundation, grant numbers PBFRP2-138632 and PBFRP2-142820. AD would like to acknowledge financial support from the UK Engineering and Physical Sciences Research Council, grant
Schulz, L, Nuccio L, Schulz L, Drew, AJ, Nuccio, L, Drew AJ   +5 more
core   +1 more source

Reductive transformation of hexavalent chromium by ferrous ions in a frozen environment: Mechanism, kinetics, and environmental implications

Ecotoxicology and Environmental Safety, 2021
The transformation between hexavalent chromium (Cr6+) and trivalent chromium (Cr3+) has a significant impact on ecosystems, as Cr6+ has higher levels of toxicity than Cr3+.
Quoc Anh Nguyen, Bomi Kim, Hyun Young Chung, Anh Quoc Khuong Nguyen, Jungwon Kim, Kitae Kim   +5 more
doaj   +1 more source

Oxalic acid as a heterogeneous ice nucleus in the upper troposphere and its indirect aerosol effect [PDF]

, 2006
Zobrist B, Marcolli C, Koop T, et al. Oxalic acid as a heterogeneous ice nucleus in the upper troposphere and its indirect aerosol effect. ATMOSPHERIC CHEMISTRY AND PHYSICS.
Koop, Thomas, Cziczo, Daniel J., Corti, Thierry, Murphy, D. M., Fueglistaler, Stephan, B. Zobrist, P. K. Hudson, Koop, T., Hudson, P.K., Koop, Thomas ; https://orcid.org/, Krieger, U. K., Corti, T., Lohmann, Ulrike, Thomson, D. S., U. K. Krieger, Marcolli, C., D. S. Thomson, D. J. Cziczo, T. Corti, T. Peter, U. Lohmann, Lohmann, U., Peter, Thomas, T. Koop, Luo, Beiping P., Murphy, Daniel M., A. A. Zardini, Krieger, Ulrich; id_orcid, Luo, B. P., Hudson, P. K., Thomson, D.S., B. P. Luo, Zardini, A., Cziczo, D. J., Zardini, A. A., Zardini, Alessandro A., D. M. Murphy, C. Marcolli, S. Fueglistaler, Peter, T., Marcolli, Claudia, Zobrist, Bernhard, Zobrist, B., Fueglistaler, S.   +43 more
core   +2 more sources

Brief Communication: Ikaite (CaCO₃·6H₂O) discovered in Arctic sea ice [PDF]

The Cryosphere, 2010
We report for the first time on the discovery of calcium carbonate crystals as ikaite (CaCO3·6H2O) in sea ice from the Arctic (Kongsfjorden, Svalbard) as confirmed by morphology and indirectly by X-ray diffraction as well as XANES spectroscopy of ...
M. A. Granskog, S. Gerland, C. Uhlig, J. Göttlicher, G. Nehrke, G. S. Dieckmann, D. N. Thomas   +6 more
doaj   +1 more source

Infrared Spectroscopy on Equilibrated High-Density Amorphous Ice

The Journal of Physical Chemistry Letters, 2022
High-density (HDA) and low-density amorphous ices (LDA) are believed to be counterparts of the high- and low-density liquid phases of water, respectively. In order to better understand how the vibrational modes change during the transition between the two solid states, we present infrared spectroscopy measurements, following the change of the decoupled
Aigerim Karina, Tobias Eklund, Christina M. Tonauer, Hailong Li, Thomas Loerting, Katrin Amann-Winkel   +5 more
openaire   +3 more sources

Depositional ice nucleation on solid ammonium sulfate and glutaric acid particles [PDF]

Atmospheric Chemistry and Physics, 2010
Heterogeneous ice nucleation on solid ammonium sulfate and glutaric acid particles was studied using optical microscopy and Raman spectroscopy. Optical microscopy was used to detect selective nucleation events as water vapor was slowly introduced into an
K. J. Baustian, M. E. Wise, M. A. Tolbert   +2 more
doaj  

Ice Nucleation Properties of Ice-binding Proteins from Snow Fleas

Biomolecules, 2019
Ice-binding proteins (IBPs) are found in many organisms, such as fish and hexapods, plants, and bacteria that need to cope with low temperatures. Ice nucleation and thermal hysteresis are two attributes of IBPs.
Akalabya Bissoyi, Naama Reicher, Michael Chasnitsky, Sivan Arad, Thomas Koop, Yinon Rudich, Ido Braslavsky   +6 more
doaj   +1 more source