Results 101 to 110 of about 21,213 (294)

Host‐driven hepatic conversion of gut microbiota‐derived putrescine to spermidine mediates mannose's protective effects against hepatic steatosis in zebrafish

iMeta, EarlyView.
Evidence for liver metabolism of gut‐derived microbial compounds into beneficial secondary metabolites has been lacking. Here, we demonstrate that Cetobacterium somerae (C. somerae), enriched by mannose supplementation under high‐fat diet conditions, convert arginine into putrescine.
Delong Meng, Zhen Zhang, Tsegay Teame, Benjamin Earl Niemann, Rui Xia, Shichang Xu, Yajie Zhao, Yalin Yang, Chao Ran, Le Luo Guan, Zhigang Zhou   +10 more
wiley   +1 more source

Comparing the Last Interglacial (MIS 5e) with the present interglacial period (MIS 1) using a multidimensional functional diversity analysis: The marine molluscs from Santa Maria Island (Azores Archipelago, central Atlantic) as a case study

Journal of Quaternary Science, EarlyView.
ABSTRACT Marine fossil records hold outstanding importance for ecological, evolutionary and biogeographical studies. Santa Maria Island in the Azores Archipelago (central Atlantic) features a remarkable marine fossil record spanning from the Pliocene to recent times.
Sérgio P. Ávila, Samuel Arruda, Luís Silva, Ana Hipólito, Rui Quartau, Ricardo S. Ramalho, Patrícia Madeira, Carlos S. Melo, Lara Baptista, Ana Cristina Rebelo, Gustavo M. Martins, Gonçalo Castela Ávila, Mohamed Amine Doukani, Esther Martín‐González, Daniele Scarponi, Alfred Uchman, Markes Johnson   +16 more
wiley   +1 more source

Mass Spectrometry Structural Proteomics Enabled by Limited Proteolysis and Cross‐Linking

Mass Spectrometry Reviews, EarlyView.
ABSTRACT The exploration of protein structure and function stands at the forefront of life science and represents an ever‐expanding focus in the development of proteomics. As mass spectrometry (MS) offers readout of protein conformational changes at both the protein and peptide levels, MS‐based structural proteomics is making significant strides in the
Haiyan Lu, Zexin Zhu, Lauren Fields, Hua Zhang, Lingjun Li   +4 more
wiley   +1 more source

Within-population isotopic niche variability in savanna mammals: disparity between carnivores and herbivores

Frontiers in Ecology and Evolution, 2016
Large mammal ecosystems have relatively simple food webs, usually comprising three – and sometimes only two – trophic links. Since many syntopic species from the same trophic level therefore share resources, dietary niche partitioning features ...
Daryl eCodron, Daryl eCodron, Jacqueline eCodron, Matt eSponheimer, Marcus eClauss   +4 more
doaj   +1 more source

A Perspective of Multi‐Reflecting TOF MS

Mass Spectrometry Reviews, EarlyView.
ABSTRACT Time‐of‐flight mass spectrometry (TOF MS) excels in rapid and high‐sensitivity analysis, making it a cornerstone of analytical chemistry. But as sample complexity explodes in omics studies, so does the need for higher resolving power to ensure accurate results.
A. N. Verenchikov, V. V. Makarov, A. V. Vorobyev, S. N. Kirillov   +3 more
wiley   +1 more source

Intensification in pastoralist cereal use coincides with the expansion of trans-regional networks in the Eurasian Steppe

, 2019
The pace of transmission of domesticated cereals, including millet from China as well as wheat and barley from southwest Asia, throughout the vast pastoralist landscapes of the Eurasian Steppe (ES) is unclear.
Makarewicz, C., Ventresca Miller, A.
core   +1 more source

Stable isotopes and mtDNA reveal niche segregation but no evidence of intergradation along a habitat gradient in the Lesser Whitethroat complex (Sylvia curruca; Passeriformes; Aves) [PDF]

, 2016
Niche segregation plays a critical role in the speciation process, but determining the extent to which taxa are geographically or ecologically isolated is challenging. In this study, we use stable isotopes of carbon (δ13C), nitrogen (δ15N), hydrogen (δ2H)
A Charmantier, BJ Peterson, C Vaurie, CJ Still, DM Post, DM Schell, E Mayr, EC Mayr, EE Goldberg, GJ Bowen, H Mizutani, H Shirihai, J Newton, JA Endler, JA Endler, JB West, JB West, JE del Hoyo, JF Kelly, JT Weir, K Williamson, KA Hobson, L Svensson, LI Wassenaar, LI Wassenaar, LL Tieszen, MA Vanderklift, MG Barbour, MJ DeNiro, MN Korelov, P Chesson, R Inger, S Bearhop, S Bearhop, S Caut, S Cramp, S Wright, SD Newsome, SJ Kerley, T Price, TD Price, U Olsson, VM Loskot, VM Loskot, WJ Boecklen   +44 more
core   +2 more sources

Metal Hydrides‐Based Hydrogen Purification Systems—A Review

MetalMat, EarlyView.
Metal hydrides as an innovative means to purify hydrogen can enable new avenues in the use of hydrogen as a clean energy vector across its production methods. ABSTRACT This review investigates the critical role of purification for enabling the use of hydrogen from various production pathways.
Cameron Reid, Wei Liu, Kondo‐Francois Aguey‐Zinsou   +2 more
wiley   +1 more source

Drivers of intrapopulation variation in resource use in a generalist predator, the macaroni penguin [PDF]

Intrapopulation variation in resource use occurs in many populations of generalist predators with important community and evolutionary implications. One of the hypothesised mechanisms for such widespread variation is ecological opportunity, i.e. resource
Green, J. A., Horswill, C., Matthiopoulos, J., McGill, R.A.R., O’Connell, T. C., Phillips, R. A., Ratcliffe, N., Trathan, P. N.   +7 more
core   +1 more source

Intrapopulation niche partitioning in a generalist predator limits food web connectivity [PDF]

, 2009
Predators are increasingly recognized as key elements in food webs because of their ability to link the fluxes of nutrients and energy between spatially separated food chains.
Eklöv, Peter, Quevedo de Anta, Mario, Svanbäck, Richard   +2 more
core   +1 more source