Results 41 to 50 of about 14,608,874 (269)

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

open access: yesFEBS 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

Type Specimens Of Birds In The American Museum Of Natural History Part 11. Passeriformes: Parulidae, Drepanididae, Vireonidae, Icteridae, Fringillinae, Carduelinae, Estrildidae, And Viduinae

open access: yes, 2013
LeCroy, Mary (2013): Type Specimens Of Birds In The American Museum Of Natural History Part 11. Passeriformes: Parulidae, Drepanididae, Vireonidae, Icteridae, Fringillinae, Carduelinae, Estrildidae, And Viduinae.
Mary LeCroy   +2 more
core   +1 more source

ZoologyCon 2024 - Book of Abstracts [PDF]

open access: yesTravaux du Muséum National d’Histoire Naturelle “Grigore Antipa”
The book contains the abstracts and program of the international zoological congress ZOOLOGYCON 2024, organized by the Grigore Antipa Museum and held in Bucharest, Romania from 6th to 9th November 2024.
Luis Ovidiu Popa   +12 more
doaj   +3 more sources

Residual tail twisting in ascidian larvae is stabilized by asymmetric myofibrils that resist bilateral symmetry restoration

open access: yesFEBS Letters, EarlyView.
Ascidian Ciona larvae initially show strong clockwise tail twisting, which is largely corrected during development. However, a small residual twist remains. This study shows that organized helical myofibrils in tail muscles mechanically stabilize this residual asymmetry, preventing complete restoration of bilateral symmetry and revealing how embryos ...
Yuki S. Kogure   +3 more
wiley   +1 more source

The Natural History of Illinois: Illinois Museum of Natural History Bulletin Volume 1 No. 1 [PDF]

open access: yes, 1876
...the issue of a series of publications has been undertaken, which it is intended to devote especially to the natural history of Illinois. These bulletins will contain original contributions to a knowledge of any department of the natural history of the
Illinois Museum of Natural History
core  

Reconstructing enzyme evolution by protein engineering

open access: yesFEBS Letters, EarlyView.
Natural enzyme evolution can be retraced by protein engineering methods such as directed evolution, rational design, and ancestral sequence reconstruction. These approaches reveal how enzymes emerged from ligand‐binding scaffolds, developed varying substrate preferences, formed oligomeric complexes, adapted to environmental changes, and evolved novel ...
Lukas Drexler   +2 more
wiley   +1 more source

A general guide to the American Museum of Natural History. (Guide leaflet, no. 13)

open access: yes, 1904
54 p. : ill., map ; 25 cm.Supplement to: American Museum journal, v. 4, no. 1, Jan. 1904. Subsequently published as: General guide to the exhibition halls of the American Museum of Natural History, [1st ed.] (1911)
American Museum of Natural History.
core   +1 more source

ZoologyCon 2026 - Book of abstracts [PDF]

open access: yesTravaux du Muséum National d’Histoire Naturelle “Grigore Antipa”
The book contains the abstracts and program of the international zoology congress ZoologyCon 2026, organized by the “Grigore Antipa” National Museum of Natural History, in partnership with the Romanian Academy and the University of ...
Luis Ovidiu Popa   +12 more
doaj   +3 more sources

Wet collections accession: a workflow based on a large stonefly (Insecta, Plecoptera) donation [PDF]

open access: yesBiodiversity Data Journal, 2018
This study details a workflow used to accession a large stonefly (Plecoptera) collection resulting from several donations. The eastern North American material of Kenneth W. Stewart (deceased, University of North Texas), the entire collection of Stanley W.
R. DeWalt   +4 more
doaj   +2 more sources

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