Results 131 to 140 of about 709,830 (296)

Ecomorphology and history of a recurrent evolutionary adaptation to long-distance bird dispersal in Asteraceae

open access: yesBoletín de la Sociedad Argentina de Botánica
Background and aims: Genera of Asteraceae, belonging to different tribes, present a repeated pattern of morphological adaptations to epiornithochory and have unique distributions (widely disjunct and/or inhabit remote islands). This pattern requires the
Liliana Katinas   +2 more
doaj   +1 more source

Multiradial (multi)filtrations and persistent homology [PDF]

open access: yes, 2016
Motivated by the problem of optimizing sensor network covers, we generalize the persistent homology of simplicial complexes over a single radial parameter to the context of multiple radial parameters.
Martin, Joshua M.   +1 more
core  

A minimal cellulosome‐like system in Cellulosilyticum lentocellum

open access: yesFEBS Open Bio, EarlyView.
Cellulose‐degrading bacteria typically use cellulosomes, large multi‐enzyme complexes on a scaffold protein. In Cellulosilyticum lentocellum, we characterise a far smaller arrangement, a single scaffold bound to one cellulase through a single cohesin‐dockerin interaction.
John Allan   +2 more
wiley   +1 more source

A general theory of the complex pronotum morphology of treehoppers in Smiliinae and its relatives (Hemiptera: Membracidae) and its applicability to other subfamilies

open access: yesEuropean Journal of Entomology
Treehoppers are characterized by exaggerated and three-dimensionally modified pronotal structures, known as "helmets". The treehopper pronotum has been studied mainly in terms of taxonomic diagnosis for over a century.
Kanta SUGIURA   +9 more
doaj   +1 more source

Homology, Genes, and Evolutionary Innovation

open access: yes, 2014
Homology-a similar trait shared by different species and derived from common ancestry, such as a seal's fin and a bird's wing-is one of the most fundamental yet challenging concepts in evolutionary biology.
Wagner, Günter P.
core  

Cell surface CD11c as a neutrophil aging marker molecule

open access: yesFEBS Open Bio, EarlyView.
Cell surface CD11chi neutrophils were more aged and had better phagocytic function than CD11c−/lo neutrophils. Transcriptomic analysis of CD11chi neutrophils and CD11c−/lo neutrophils in pediatric population showed that the most difference was seen in infants.
Sophia Koutsogiannaki   +5 more
wiley   +1 more source

Proteomic Profiling of Bacterial Extracellular Vesicles for Exploring Ovarian Cancer Biomarkers

open access: yesJournal of Extracellular Biology
Extracellular vesicles (EVs) are present in body fluids and act as disease biomarkers. Emerging evidence has proven that EVs are released not only from mammalian cells but also from bacteria.
Eri Asano‐Inami   +11 more
doaj   +1 more source

Homology 3-Spheres

open access: yes
Let R be a commutative ring with an identity element. By an R-homology 3-sphere we will mean a closed oriented 3-manifold M such that H* (M, R) = H*(S3, R).
Saveliev, Nikolai
core   +1 more source

homology-semanticsimilarity: Code, data, and results used for the homology manuscript.

open access: yes, 2015
This project measures the effect of anatomical homology on phenotype similarity of orthologous genes across human, mouse, and ...
Prashanti Manda
core   +1 more source

The C‐terminal domain of yeast Arginyltransferase1 is essential for its catalytic activity

open access: yesFEBS Open Bio, EarlyView.
Arginyltransferase 1 (Ate1), a eukaryotic enzyme, catalyses arginylation, transferring arginine from tRNA‐Arg to the amino terminus of the target protein. Overexpression of Ate1 in yeast is lethal and is dependent on arginylation. This study elucidates how mutations in the cofactor‐binding and active site of Ate1 and truncation of its structural ...
Vikas Kumar Yadav   +4 more
wiley   +1 more source

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