Results 51 to 60 of about 3,866,964 (327)

Seawater carbonate chemistry and biogenic dimethylated sulfur compounds cycling

, 2019
Ocean acidification (OA) affects marine primary productivity and community structure. Therefore, OA may influence the biogeochemical cycles of volatile biogenic dimethyl sulfide (DMS), and its precursor dimethylsulfoniopropionate (DMSP) and photochemical
Zhang, Jing, Zhang, Hong-Hai, Yang, Gui-Peng, Jian, Shan   +3 more
core   +1 more source

Lipopolysaccharide uptake is augmented in lipopolysaccharide‐tolerant mouse macrophage‐like cells via increased CD14 expression

FEBS Open Bio, EarlyView.
In normal (nontolerant) cells, CD14 is crucial for both LPS uptake and LPS signaling. In LPS‐tolerant cells, in which LPS‐induced TNF‐α and IFN‐β production is suppressed, there is a dramatic increase in surface CD14 expression. The overexpressed CD14 in LPS‐tolerant cells is responsible for the enhanced LPS uptake without inducing pro‐inflammatory ...
Saeka Nishihara, Takayuki Manabe, Mika Jouta, Kiyoshi Kawasaki   +3 more
wiley   +1 more source

Sulfur Biogeochemical Cycling and Redox Dynamics in a Shale‐Dominated Mountainous Watershed [PDF]

, 2022
Sulfur (S) is an essential macronutrient and important component of the earth’s crust, and its cycling has critical impacts on trace metal mobility, water quality, and human health.
Carrero, Sergio, Benjamin Gilbert, Anderson, Cam, Naughton, Hannah R, Cam Anderson, Marco Keiluweit, Baptiste Dafflon, Gilbert, Benjamin, Alexander Newman, Newman, Alexander, Helen Malenda‐Lawrence, Keiluweit, Marco, Versteeg, Roelof, Dewey, Christian, Roelof Versteeg, Peter S. Nico, Hannah R. Naughton, Dwivedi, Dipankar, Nico, Peter S, Scott Fendorf, Malenda-Lawrence, Helen, Beutler, Curtis, Kristin Boye, Wendy Brown, Fox, Patricia M., Fox, Patricia M, Fendorf, Scott, Mark Conrad, Dafflon, Baptiste, Rosemary Carroll, Malenda‐Lawrence, Helen, Nico, Peter S., Dipankar Dwivedi, Kenneth H. Williams, John N. Christensen, Christensen, John N, Williams, Kenneth H, Brown, Wendy, Conrad, Mark, Boye, Kristin, Christian Dewey, Naughton, Hannah R., Curtis Beutler, Christensen, John N., Williams, Kenneth H., Carroll, Rosemary, Patricia M. Fox, Sergio Carrero   +47 more
core   +1 more source

From energy provision to protein synthesis: Tunnelling nanotubes as mediators of intercellular metabolic cooperation in cancer

FEBS Open Bio, EarlyView.
The cytoskeleton‐mediated transport of mitochondria via tunnelling nanotubes restores respiration, increases ATP production, rescues cells from apoptosis, activates the AKT/mTOR signalling pathway, promotes cell migration and invasiveness, contributes to cancer progression and treatment resistance.
Stanislava Martínková, Jan Trnka
wiley   +1 more source

Metagenomes and metatranscriptomes shed new light on the microbial-mediated sulfur cycle in a Siberian soda lake

BMC Biology, 2019
Background The planetary sulfur cycle is a complex web of chemical reactions that can be microbial-mediated or can occur spontaneously in the environment, depending on the temperature and pH.
Charlotte D. Vavourakis, Maliheh Mehrshad, Cherel Balkema, Rutger van Hall, Adrian-Ştefan Andrei, Rohit Ghai, Dimitry Y. Sorokin, Gerard Muyzer   +7 more
doaj   +1 more source

Unraveling the lithium iodide-mediated interfacial process in lithium-sulfur batteries: An in situ AFM study

Advanced Sensor and Energy Materials, 2022
Among various energy storage devices, lithium-sulfur batteries have attracted widespread attention due to their high theoretical energy density and specific capacity.
Yuan Li, Zhen-Zhen Shen, Gui-Xian Liu, Rui Wen   +3 more
doaj   +1 more source

Physiological and Mechanistic Studies of Phototrophic Fe(II) Oxidation in Purple Non-sulfur Bacteria [PDF]

, 2007
Phototrophic Fe(II)-oxidizing bacteria use electrons from ferrous iron [Fe(II)] and energy from light to drive reductive CO₂ fixation. This metabolism is thought to be ancient in origin, and plays an important role in environmental iron cycling. It has
Jiao, Yongqin
core   +1 more source

Optimization of the Production of Rubber Compounds Using Mathematical Models

Advanced Engineering Materials, EarlyView.
Rubber compounds were mixed in a batch internal mixer, and symbolic regression was used to derive mathematical models linking recipe and process parameters to ram path, torque, and mixing quality (incorporation, dispersion, distribution). Subsequent optimization with evolutionary algorithms identified operating conditions that reduce specific energy ...
Anke Bardehle, Andreas Limper, Ulrich Giese, Carlos Lucke, Mario Beiner, Christoph Gögelein, Lisa Leuchtenberger‐Engel, Christian Hopmann   +7 more
wiley   +1 more source

Understanding the lithium–sulfur battery redox reactions via operando confocal Raman microscopy

Nature Communications, 2022
The complex redox processes in lithium–sulfur batteries are not yet fully understood at the fundamental level. Here, the authors report operando confocal Raman microscopy measurements to provide mechanistic insights into polysulfide evolution and sulfur ...
Shuangyan Lang, Seung-Ho Yu, Xinran Feng, Mihail R. Krumov, Héctor D. Abruña   +4 more
doaj   +1 more source

Resolving and modeling the effects of Fe and Mn redox cycling on trace metal behaviour in a seasonally anoxic lake. [PDF]

, 2005
Vertical profiles of the dissolved and particulate (>0.45 μm) concentrations of Fe, Mn, Co, Ni, Cu, Pb, Al and Ba were determined on two occasions (14 and 22 August 1996) during summer stratification in a seasonally anoxic lake (Esthwaite Water, UK). The
Hamilton-Taylor, J., Smith, E.J., Smith, EJ, Davison, W, Hamilton-Taylor, J, Sugiyama, M, Sugiyama, M., Davison, W.   +7 more
core   +1 more source