Results 71 to 80 of about 5,205 (203)

Dominance of Sulfur-Oxidizing Bacteria, Thiomicrorhabdus, in the Waters Affected by a Shallow-Sea Hydrothermal Plume

Biology
The shallow-sea hydrothermal vent at Guishan Islet, located off the coast of Taiwan, serves as a remarkable natural site for studying microbial ecology in extreme environments.
Chih-Ching Chung, Gwo-Ching Gong, Hsiao-Chun Tseng, Wen-Chen Chou, Chuan-Hsin Ho   +4 more
doaj   +1 more source

Prebiotic aqueous reactions catalyzed by native nickel without hydrogen

The FEBS Journal, EarlyView.
Serpentinizing (H2‐producing) hydrothermal vents are candidate environments for metabolic origin. They generate highly reducing conditions that convert CO2 to formate and methane in abiotic reactions resembling reactions of the acetyl‐CoA pathway of CO2 fixation. They also contain natural catalysts. Native nickel (Ni0), like Fe0, Co0, and their alloys,
Carolina Garcia Garcia, Max Brabender, William F. Martin   +2 more
wiley   +1 more source

Fluid ingress and surface wettability of 3D‐printed closed‐hollow obturator specimens across material types and printing orientations

Journal of Prosthodontics, EarlyView.
Abstract Purpose To evaluate the effects of material type, printing orientation, and thermocycling on cumulative fluid ingress in three‐dimensional (3D)‐printed closed‐hollow obturator specimens and to compare water contact angle among material–printing orientation groups.
Wisarut Prawatvatchara, Soranun Chantarangsu, Somphote Angkanawiriyarak, Raiwint Khunwisetkul, Kwanwong Boonpitak, Visaluk Punyawattananon, Cheewin Towithelertkul   +6 more
wiley   +1 more source

The Role of Oxidative Stress in Periodontitis

Journal of Periodontal Research, EarlyView.
Oxidative stress is involved in multiple chemical reactions that take place in different intracellular organelles: mitochondria, rough endoplasmic reticulum, peroxisomes, autophagy, and aging, and can be influenced by exogenous factors: nutrition, physical activity, psychological status, environmental conditions, microbiome, and drugs.
Pedro Bullon, Francesca Giampieri, Beatriz Bullon, Maurizio Battino   +3 more
wiley   +1 more source

Dispersion and Intersection of Hydrothermal Plumes in the Manus Back-Arc Basin, Western Pacific

Geofluids, 2020
The composition of hydrothermal plumes reflects the physical and chemical characteristics of seafloor hydrothermal fluids, which in turn reflects the host rock and subseafloor reaction conditions as well as the water column processes that act to alter ...
Zhigang Zeng, Xiaoyuan Wang, Bramley J. Murton, Haiyan Qi, Berit Lehrmann, Xiaohui Li, Zuxing Chen, Yunchao Shu   +7 more
doaj   +1 more source

Understanding marine biodiversity patterns and drivers: The fall of Icarus

Marine Ecology, EarlyView.
Abstract Biodiversity patterns are fundamental in our understanding of the distribution of life, ecosystem function, and conservation. In this concept analysis, A survey of the existing knowledge on marine biodiversity patterns and drivers across latitudes, longitudes, and depths indicates that none of the postulated patterns represent a rule.
Roberto Danovaro
wiley   +1 more source

The Control of End‐Member Iron‐to‐Sulfide Ratios on Hydrothermal Plume Geochemistry at the Rainbow, Broken Spur, and Lost City Vent Fields in the Mid‐Atlantic Ridge

Geochemistry, Geophysics, Geosystems
The Mid‐Atlantic Ridge (MAR) represents a unique tectonic environment hosting distinct hydrothermal vent fields. Considering the growing interest in understanding the role of hydrothermal vents in both local and global ocean systems, the MAR offers an ...
Serhat Sevgen, Nadine Le Bris, Mustafa Yücel   +2 more
doaj   +1 more source

Engineered surface strategies to manage dental implant‐related infections

Periodontology 2000, EarlyView.
Abstract When exposed to the oral environment, dental implants, like natural surfaces, become substrates for microbial adhesion and accumulation, often leading to implant‐related infections—one of the main causes of implant failure. These failures impose significant costs on patients, clinicians, and healthcare systems.
João Gabriel S. Souza, Bruna E. Nagay, Rodrigo Martins, Martinna Bertolini, Jamil A. Shibli, Conrado Aparicio, Magda Feres, Valentim A. R. Barão   +7 more
wiley   +1 more source

Voltammetric Investigation Of Hydrothermal Iron Speciation

Frontiers in Marine Science, 2016
Hydrothermal vent fluids are highly enriched in iron (Fe) compared to ambient seawater, and organic ligands may play a role in facilitating the transport of some hydrothermal Fe into the open ocean.
Charlotte eKleint, Jeffrey Alistair Hawkes, Sylvia Gertrud Sander, Andrea eKoschinsky   +3 more
doaj   +1 more source

The discovery of new deep-sea hydrothermal vent communities in the southern ocean and implications for biogeography.

PLoS Biology, 2012
Since the first discovery of deep-sea hydrothermal vents along the Galápagos Rift in 1977, numerous vent sites and endemic faunal assemblages have been found along mid-ocean ridges and back-arc basins at low to mid latitudes.
Alex D Rogers, Paul A Tyler, Douglas P Connelly, Jon T Copley, Rachael James, Robert D Larter, Katrin Linse, Rachel A Mills, Alfredo Naveira Garabato, Richard D Pancost, David A Pearce, Nicholas V C Polunin, Christopher R German, Timothy Shank, Philipp H Boersch-Supan, Belinda J Alker, Alfred Aquilina, Sarah A Bennett, Andrew Clarke, Robert J J Dinley, Alastair G C Graham, Darryl R H Green, Jeffrey A Hawkes, Laura Hepburn, Ana Hilario, Veerle A I Huvenne, Leigh Marsh, Eva Ramirez-Llodra, William D K Reid, Christopher N Roterman, Christopher J Sweeting, Sven Thatje, Katrin Zwirglmaier   +32 more
doaj   +1 more source