Results 31 to 40 of about 9,047,121 (245)

Peptide Synthesis in Early Earth Hydrothermal Systems [PDF]

Astrobiology, 2009
We report here results from experiments and thermodynamic calculations that demonstrate a rapid, temperature-enhanced synthesis of oligopeptides from the condensation of aqueous glycine. Experiments were conducted in custom-made hydrothermal reactors, and organic compounds were characterized with ultraviolet-visible procedures.
Lemke, KH, Bird, DK, Rosenbauer, RJ
openaire   +4 more sources

Adaptations to submarine hydrothermal environments exemplified by the genome of Nautilia profundicola [PDF]

, 2009
Submarine hydrothermal vents are model systems for the Archaean Earth environment, and some sites maintain conditions that may have favored the formation and evolution of cellular life.
Robinson, Jeffrey M, Campbell, Barbara J, Hoda M Khouri, S. Craig Cary, Hanson, Thomas E., Lee Charles K., Jonathan A. Eisen, Wu, Dongying, Eisen, Jonathan A., Barbara J Campbell, Jeffrey M Robinson, Cary, S Craig, Robinson, Jeffrey M., Charles K. Lee, Stein, Lisa Y., Lisa Y Stein, Stein, Lisa Y, Julie L Smith, Thomas E Hanson, Klotz, Martin G., Cary S. Craig, Eisen, Jonathan A, Khouri Hoda M., Khouri, Hoda M, Hanson, Thomas E, Hanson Thomas E., Eisen Jonathan A., Thomas E. Hanson, Dongying Wu, S Craig Cary, Jonathan A Eisen, Lee, Charles K, Smith, Julie L., Klotz Martin G., Cary, S. Craig, Wu Dongying, Charles K Lee, Smith Julie L., Martin G. Klotz, Campbell, Barbara J., Klotz, Martin G, Campbell Barbara J., Barbara J. Campbell, Julie L. Smith, Lee, Charles Kai-Wu, Khouri, Hoda M., Smith, Julie L, Lisa Y. Stein, Jeffrey M. Robinson, Hoda M. Khouri, Martin G Klotz, Stein Lisa Y., Robinson Jeffrey M.   +52 more
core   +2 more sources

Chemoautotrophy at Deep-Sea Vents: Past, Present, and Future [PDF]

Oceanography, 2012
Chemolithoautotrophic microorganisms are at the nexus of hydrothermal systems by effectively transferring the energy from the geothermal source to the higher trophic levels.
Stefan M. Sievert, Costantino Vetriani
doaj  

Magnetotelluric Image of Transcrustal Magmatic System Beneath the Tulu Moye Geothermal Prospect in the Ethiopian Rift

Geophysical Research Letters, 2018
Continental rifting is initiated by a dynamic interplay between tectonic stretching and mantle upwelling. Decompression melting assists continental breakup through lithospheric weakening and enforces upflow of melt to the Earth's surface.
Friedemann Samrock, Alexander V. Grayver, Hjalmar Eysteinsson, Martin O. Saar   +3 more
doaj   +1 more source

Sulfur Impurities: The Overlooked Process in Volcanic Hazard Assessment

Geosciences
One of the most intriguing questions of modern volcanology is the inception of an eruption. Despite efforts to detect premonitory signals, numerous unpredicted eruptions have occurred recently. It has been suggested that these unpredicted eruptions might
Teresa Scolamacchia
doaj   +1 more source

Monitoring Hydrothermal Activity Using Major and Trace Elements in Low-Temperature Fumarolic Condensates: The Case of La Soufriere de Guadeloupe Volcano

Geosciences, 2022
At the hydrothermal stage, volcanoes are affected by internal and external processes that control their fumarolic and eruptive activity. Monitoring hydrothermal activity is challenging given the diverse nature of the processes accounting for deeper ...
Manuel Inostroza, Séverine Moune, Roberto Moretti, Vincent Robert, Magali Bonifacie, Elodie Chilin-Eusebe, Arnaud Burtin, Pierre Burckel   +7 more
doaj   +1 more source

A Practical Noise2Noise Denoising Pipeline for High‐Throughput Raman Spectroscopy

Advanced Engineering Materials, EarlyView.
A lightweight and reproducible denoising pipeline for high‐throughput Raman spectroscopy is introduced, based on a 1D convolutional autoencoder trained with a Noise2Noise strategy. Using only repeated short‐exposure acquisitions, the method suppresses stochastic noise without reference spectra, enabling reliable spectral reconstruction while preserving
David Martin‐Calle, Cesar Alvarez‐Llamas, Vincent Motto‐Ros, Christophe Dujardin, Jérémie Margueritat, David Rodney   +5 more
wiley   +1 more source

Electrospun Wood‐Derived Biopolymers as Electrodes in Electrochemical Energy Storage Technologies

Advanced Functional Materials, EarlyView.
Electrospinning transforms wood‐derived cellulose and lignin into architecturally defined, binder‐free carbon electrodes with tuneable porosity and functionality. This review shows how fibre design enables decoupled charge and mass transport, enhancing performance across battery systems, while identifying key challenges in spinnability, scalability ...
Michael W. Thielke, Hattie R. Chisnall, Jesus Vazquez Chavez, Ana B. Jorge Sobrido   +3 more
wiley   +1 more source

2D Co‐Assembly of Solid Acids Enables Stable Superprotonic Conduction Above 260°C

Advanced Functional Materials, EarlyView.
A two‐dimensional co‐assembly strategy integrates antimony phosphate and phosphotungstic acid nanosheets into free‐standing inorganic lamellar membranes with confined acid–acid interfaces. The resulting interfacial hydrogen‐bond network enables anhydrous proton conductivity exceeding 0.1 S cm−1 at 260°C and supports stable high‐temperature fuel‐cell ...
Qiuning Li, Kaiqiang He, Dehua Dong, Fanmengjing Wang, Xiangcheng Liu, Zhikao Li, Jacek J. Jasieniak, Paul A. Webley, Huanting Wang   +8 more
wiley   +1 more source

Microdistribution of Faunal Assemblages at Deep-Sea Hydrothermal Vents in the Southern Ocean [PDF]

, 2012
Chemosynthetic primary production by microbes supports abundant faunal assemblages at deep-sea hydrothermal vents, with zonation of invertebrate species typically occurring along physico-chemical gradients.
Tyler, PA, Rogers, AD, Huvenne, Veerle A.I., Katrin Linse, Rogers Alex D., Sweeting Christopher J., Jonathan T Copley, Alex D Rogers, Linse, K, William D. K. Reid, Leigh Marsh, Christopher J Sweeting, Paul A Tyler, Veerle A I Huvenne, Reid, WD, Christopher J. Sweeting, Linse, Katrin, Rogers, Alex D., Copley, JT, Tyler Paul A., William D K Reid, Sweeting, CJ, Copley Jonathan T., Sweeting, Christopher J., Huvenne, VA, Marsh, Leigh, Alex D. Rogers, Copley, Jonathan T., Reid, William D.K., Tyler, Paul A., Marsh, L, Rogers, Alex, Veerle A. I. Huvenne, Linse Katrin, Jonathan T. Copley, Huvenne Veerle A. I., Paul A. Tyler, Marsh Leigh, Reid William D. K.   +38 more
core   +2 more sources