Results 51 to 60 of about 1,586,299 (311)

Gut microbiome and aging—A dynamic interplay of microbes, metabolites, and the immune system

FEBS Letters, EarlyView.
Age‐dependent shifts in microbial communities engender shifts in microbial metabolite profiles. These in turn drive shifts in barrier surface permeability of the gut and brain and induce immune activation. When paired with preexisting age‐related chronic inflammation this increases the risk of neuroinflammation and neurodegenerative diseases.
Aaron Mehl, Eran Blacher
wiley   +1 more source

Accurate single-shot full-Stokes detection enabled by heterogeneous grain orientations in polycrystalline films

Nature Communications
Decoding arbitrary polarization information in a cost-effective way is a key target for next-generation optical sensing. However, the design of full-Stokes detectors capable of resolving polarization states in a single shot remains challenging.
Mingwei Ge, Yuan Yao, Tyler Wang, Subhrangsu Mukherjee, Harald Ade, Mengxia Liu   +5 more
doaj   +1 more source

Total Observed Organic Carbon (TOOC): A synthesis of North American observations [PDF]

, 2007
Measurements of organic carbon compounds in both the gas and particle phases measured upwind, over and downwind of North America are synthesized to examine the total observed organic carbon (TOOC) over this region.
Aiken, A. C., Allan, J. D., Apel, E., Atlas, E. L., Baker, A. K., Bates, T. S., Beyersdorf, A. J., Blake, D. R., Campos, T., Coe, H., Crounse, J. D., de Gouw, J. A., DeCarlo, P. F., Dunlea, E. J., Flocke, F. M., Fried, A., Goldan, P., Goldstein, A. H., Griffin, R. J., Heald, C. L., Herndon, S. C., Holloway, J. S., Holzinger, R., Jimenez, J. L., Junkermann, W., Kuster, W. C., Lewis, A. C., Meinardi, S., Millet, D. B., Onasch, T., Polidori, A., Quinn, P. K., Riemer, D. D., Roberts, J. M., Salcedo, D., Sive, B., Swanson, A. L., Talbot, R., Warneke, C., Weber, R. J., Weibring, P., Wennberg, P. O., Wittig, A. E., Worsnop, D. R., Zhang, R., Zheng, J., Zheng, W.   +46 more
core   +7 more sources

A methionine‐lined active site governs carbocation stabilization and product specificity in a bacterial terpene synthase

FEBS Letters, EarlyView.
This study reveals a unique active site enriched in methionine residues and demonstrates that these residues play a critical role by stabilizing carbocation intermediates through novel sulfur–cation interactions. Structure‐guided mutagenesis further revealed variants with significantly altered product profiles, enhancing pseudopterosin formation. These
Marion Ringel, Carl P. O. Helmer, Shani Zev, Ronja Driller, Emily Buhr, Markus Reinbold, Renana Schwartz, Gabriel Foley, Mikael Boden, Daniel Garbe, Gerhard Schenk, Dan Thomas Major, Bernhard Loll, Thomas Brück   +13 more
wiley   +1 more source

Synthesis and characterizations of highly luminescent 5-isopropoxybenzo[rst]pentaphene

Beilstein Journal of Organic Chemistry
A benzo[rst]pentaphene (BPP) substituted by an isopropoxy group (BPP-OiPr) was synthesized in a facile manner. Its photophysical properties were investigated by UV–vis absorption and fluorescence spectroscopy in compassion to pristine BPP and its ...
Islam S. Marae, Jingyun Tan, Rengo Yoshioka, Zakaria Ziadi, Eugene Khaskin, Serhii Vasylevskyi, Ryota Kabe, Xiushang Xu, Akimitsu Narita   +8 more
doaj   +1 more source

8-Hydroxyquinoline Glycoconjugates: Modifications in the Linker Structure and Their Effect on the Cytotoxicity of the Obtained Compounds

Molecules, 2019
Small molecule nitrogen heterocycles are very important structures, widely used in the design of potential pharmaceuticals. Particularly, derivatives of 8-hydroxyquinoline (8-HQ) are successfully used to design promising anti-cancer agents. Conjugating 8-
Monika Krawczyk, Gabriela Pastuch-Gawołek, Aleksandra Pluta, Karol Erfurt, Adrian Domiński, Piotr Kurcok   +5 more
doaj   +1 more source

Effect of Mesopore Development on Butane Working Capacity of Biomass-Derived Activated Carbon for Automobile Canister

Nanomaterials, 2021
Kenaf-derived activated carbons (AKC) were prepared by H3PO4 activation for automobile canisters. The microstructural properties of AKC were observed using Raman spectra and X-ray diffraction. The textural properties were studied using N2/77 K adsorption
Byeong-Hoon Lee, Hye-Min Lee, Dong Chul Chung, Byung-Joo Kim   +3 more
doaj   +1 more source

ICROFS news 2/2012. Newsletter from ICROFS [PDF]

, 2012
International organic research theme: - Organic farming in Canada - Linking organic knowledge - Organic greenhouse production research in Canada - Researhing a limiting and limited nutrient - Prodctivity and growth in organic value chains (ProGrOV)
Mathiesen, C., Sørensen, L.S.
core  

Terrestrial and fluvial carbon fluxes in a tropical watershed: Nyong basin, Cameroon [PDF]

, 2009
The Nyong watershed, with an area of 27 800 km2 and a mean annual discharge of 390 m3 s−1, is the second largest river in Cameroon. The Nyong watershed serves as an outstanding study area for the examination of carbon fluxes in humid tropical ...
Boeglin, Jean-Loup, Brunet, Frédéric, Dubois, Krystel, Ndam-Ngoupayou, Jules-Rémy, Nkoue Ndondo, Gustave Raoul, Probst, Jean-Luc, Veizer, Jan   +6 more
core   +2 more sources

Linking neurogenesis, oligodendrogenesis, and myelination defects to neurodevelopmental disruption in primary mitochondrial disorders

FEBS Letters, EarlyView.
Mitochondrial remodeling shapes neural and glial lineage progression by matching metabolic supply with demand. Elevated OXPHOS supports differentiation and myelin formation, while myelin compaction lowers mitochondrial dependence, revealing mitochondria as key drivers of developmental energy adaptation.
Sahitya Ranjan Biswas, Porter L. Tomsick, Alicia M. Pickrell, Paul D. Morton   +3 more
wiley   +1 more source