Results 101 to 110 of about 12,223 (196)

A metagenomic study of methanotrophic microorganisms in Coal Oil Point seep sediments

BMC Microbiology, 2011
Background Methane oxidizing prokaryotes in marine sediments are believed to function as a methane filter reducing the oceanic contribution to the global methane emission.
Haverkamp Thomas HA, Håvelsrud Othilde, Kristensen Tom, Jakobsen Kjetill S, Rike Anne   +4 more
doaj   +1 more source

Microbial interactions in the anaerobic oxidation of methane: Model simulations constrained by process rates and activity patterns [PDF]

, 2019
Proposed syntrophic interactions between the archaeal and bacterial cells mediating anaerobic oxidation of methane coupled with sulfate reduction include electron transfer through (1) the exchange of H2 or small organic molecules between methane ...
Chadwick, Grayson, He, Xiaojia, Kempes, Christopher, McGlynn, Shawn, Meile, Christof, Orphan, Victoria, Shi, Yimeng   +6 more
core  

Comparative Study of Guaymas Basin Microbiomes: Cold Seeps vs. Hydrothermal Vents Sediments

Frontiers in Marine Science, 2017
In the Guaymas Basin, the presence at a few tens of kilometers of cold seeps and hydrothermal vents coupled with comparable sedimentary settings and depths offer a unique opportunity to assess and compare the microbial community composition of these deep-
Perrine Cruaud, Perrine Cruaud, Perrine Cruaud, Adrien Vigneron, Adrien Vigneron, Adrien Vigneron, Patricia Pignet, Patricia Pignet, Patricia Pignet, Jean-Claude Caprais, Françoise Lesongeur, Françoise Lesongeur, Françoise Lesongeur, Laurent Toffin, Laurent Toffin, Laurent Toffin, Anne Godfroy, Anne Godfroy, Anne Godfroy, Marie-Anne Cambon-Bonavita, Marie-Anne Cambon-Bonavita, Marie-Anne Cambon-Bonavita   +21 more
doaj   +1 more source

Evidence for anaerobic oxidation of methane in sediments of a freshwater system (Lago di Cadagno) [PDF]

, 2017
Anaerobic oxidation of methane (AOM) has been investigated in sediments of a high alpine sulfate-rich lake. Hot spots of AOM could be identified based on geochemical and isotopic evidence. Very high fractionation of methane (α=1.031) during oxidation was
Boetius, Antje, Knittel, Katrin, Lösekann-Behrens, Tina, Schubert, Carsten J., Tonolla, Mauro, Vazquez, Francisco   +5 more
core  

Comments on the kinematical structure of loop quantum cosmology

, 2004
We comment on the presence of spurious observables and on a subtle violation of irreducibility in loop quantum cosmology.Comment: 7 ...
Ashtekar A, Ashtekar A, Bojowald M, Bojowald M, Bojowald M Morales-Técotl H, Fairbairn W Rovelli C, Gotay M, J M Velhinho, Rovelli C, Thiemann T, Thiemann T, Velhinho J M, Zapata J   +12 more
core   +1 more source

Ansiedad hacia las matemáticas, agrado y utilidad en futuros maestros [PDF]

, 2014
Para conocer si los futuros maestros de primaria tienen ansiedad hacia las matemáticas se han elegido dos muestras de alumnos de la Universidad de Murcia en dos cursos consecutivos que estudian actualmente el grado y se les han aplicado dos escalas de ...
Nortes, Andrés, Nortes, Rosa
core  

Physiological versatility of ANME-1 and Bathyarchaeotoa-8 archaea evidenced by inverse stable isotope labeling

Microbiome
Background The trophic strategy is one key principle to categorize microbial lifestyles, by broadly classifying microorganisms based on the combination of their preferred carbon sources, electron sources, and electron sinks.
Xiuran Yin, Guowei Zhou, Mingwei Cai, Tim Richter-Heitmann, Qing-Zeng Zhu, Mara Maeke, Ajinkya C. Kulkarni, Rolf Nimzyk, Marcus Elvert, Michael W. Friedrich   +9 more
doaj   +1 more source

Local Conditions Structure Unique Archaeal Communities in the Anoxic Sediments of Meromictic Lake Kivu [PDF]

, 2018
Meromictic Lake Kivu is renowned for its enormous quantity of methane dissolved in the hypolimnion. The methane is primarily of biological origin, and its concentration has been increasing in the past half-century.
Anselmetti, Flavio, Bhattarai, Susma, Bürgmann, Helmut, Ross, Kelly, Schmid, Martin   +4 more
core  

The renewable energy targets of the Maghreb countries: Impact on electricity supply and conventional power markets [PDF]

Morocco, Algeria and Tunisia, the three countries of the North African Maghreb region, are showing increased efforts to integrate renewable electricity into their power markets.
Brand, Bernhard, Zingerle, Jonas
core  

Has empowerment lost its power? [PDF]

, 2012
Cross, RM, Warwick-Booth, L, Woodall, JR
core   +1 more source