Results 71 to 80 of about 88,297 (298)

Arachnid Assemblage Composition Diverge between South- and North-Facing Slopes in a Levantine Microgeographic Site

Diversity
Local microgeographic sites subdivided by sharp ecological and climatic contrasts are important platforms for measuring biodiversity patterns and inferring the possible effect of climatic and ecological variables on species distributions and habitat use.
Meir Finkel, Amit Ben-Asher, Gur Shmula, Igor Armiach Steinpress, Zeana Ganem, Rami Hammouri, Erika Garcia, Tamás Szűts, Efrat Gavish-Regev   +8 more
doaj   +1 more source

Calpain small subunit homodimerization is robust and calcium‐independent

FEBS Letters, EarlyView.
Calpains dimerize via penta‐EF‐hand (PEF) domains. Using single‐molecule force spectroscopy, we measured the strength and kinetics of PEF–PEF homodimer binding. The interaction is robust, shows a transient conformational step before dissociation, and remains largely insensitive to Ca2+.
Nesha May O. Andoy, Trina Dykstra‐MacPherson, Mathias A. Bell, Peter L. Davies, Ruby May A. Sullan   +4 more
wiley   +1 more source

Publications of the Field museum of natural history. [PDF]

, 1896
Contents.--vol.1, no.1. Contribution to the ornithology of San Domingo, by G. K. Cherrie. March 1896. (Publication 10).--no.2. Catalogue of a collection of birds obtained by the expedition into Somali-Land, by D. G. Elliot. Feb. 1897.
Chicago Natural History Museum.
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Structural insights into an engineered feruloyl esterase with improved MHET degrading properties

FEBS Letters, EarlyView.
A feruloyl esterase was engineered to mimic key features of MHETase, enhancing the degradation of PET oligomers. Structural and computational analysis reveal how a point mutation stabilizes the active site and reshapes the binding cleft, expading substrate scope.
Panagiota Karampa, Konstantinos Makryniotis, Theofani‐Iosifina Sousani, Evangelos Topakas, Vangelis Daskalakis, Maria Dimarogona   +5 more
wiley   +1 more source

Pseudoscorpions of Israel: Annotated Checklist and Key, with New Records of Two Families (Arachnida: Pseudoscorpiones)

Taxonomy, 2023
The location of Israel at the junction of three continents leads to a unique fauna of both Palearctic and Afrotropical zoogeographic origins. Following systematic revisions over the past sixty years and the discovery of new species, the only available ...
Sharon Warburg, Shlomi Aharon, Igor Armiach Steinpress, Prashant P. Sharma, Danilo Harms, Efrat Gavish-Regev   +5 more
doaj   +1 more source

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

Inselect: Automating the Digitization of Natural History Collections. [PDF]

PLoS One, 2015
The world's natural history collections constitute an enormous evidence base for scientific research on the natural world. To facilitate these studies and improve access to collections, many organisations are embarking on major programmes of digitization.
Hudson LN, Blagoderov V, Heaton A, Holtzhausen P, Livermore L, Price BW, van der Walt S, Smith VS.   +7 more
europepmc   +7 more sources

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

FEBS 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, Misaki K. Nishio, Satoru Okuda, Kohji Hotta   +3 more
wiley   +1 more source

Elachista dimicatella sensu auctt.—a complex of neglected species diversity (Lepidoptera, Elachistidae) from European mountain systems [PDF]

ZooKeys
Elachista dimicatella Rebel, 1903, has so far been considered a species in Europe with restricted distribution from Ukraine to western France. The species occurs on mountainous regions.
Lauri Kaila, Peter Huemer
doaj   +3 more sources

Archaeology and Natural History Newsletter [PDF]

, 2010
Research in Archaeology and Natural History at the ANU School of Culture, History and Language aims to understand prehistoric human societies, the environments in which they developed and the environmental consequences of human presence.
Australian National University. Archaeology and Natural History
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