Results 41 to 50 of about 16,455 (202)

Rachis morphology cannot accurately predict the mechanical performance of primary feathers in extant (and therefore fossil) feathered flyers [PDF]

open access: yesRoyal Society Open Science, 2017
It was previously suggested that the flight ability of feathered fossils could be hypothesized from the diameter of their feather rachises. Central to the idea is the unvalidated assumption that the strength of a primary flight feather (i.e. its material
John Lees   +3 more
doaj   +1 more source

Life Stage‐Specific Genetic Diversity and Landscape Characteristics Collectively Influence Genetic Recovery in Pometia pinnata Population 生活史阶段特异的遗传多样性与景观特征对番龙眼种群遗传恢复的协同影响

open access: yesIntegrative Conservation, EarlyView.
Pometia pinnata demonstrated life‐stage‐specific genetic responses to landscape features, with asymmetric gene flow patterns and population recovery following historical bottlenecks, revealing complex topographic and demographic influences on forest genetic structure.
Madhuparna Chatterjee   +5 more
wiley   +1 more source

Parakaempferia alba sp. nov. (Zingiberaceae), a new species from Arunachal Pradesh, India

open access: yesNordic Journal of Botany, EarlyView.
Parakaempferia alba, a new species of Zingiberaceae from East Siang district of Arunachal Pradesh, India is herein described. A detailed taxonomic description, diagnosis, color photoplate, distribution map, notes on habitat and ecology, conservation status, and a table of comparisons with the closely related species Parakaempferai synantha Rao & Verma ...
Tatum Mibang   +3 more
wiley   +1 more source

Taxonomy and diversity of Marcgraviaceae, north of the São Francisco river, northeast Brazil

open access: yesNordic Journal of Botany, EarlyView.
This study provides a comprehensive assessment of Marcgraviaceae species diversity north of the São Francisco river in northeastern Brazil, analyzing species richness and distribution patterns across 384 000 km² of phytogeographic domains. Through field collections, herbarium studies (both physical and digital), and detailed morphological analyses, we ...
Thales Carvalho   +4 more
wiley   +1 more source

Aspects Scanographiques des Traumatismes du Rachis à Bouaké

open access: yesHealth Research in Africa
RÉSUMÉ Objectif. Décrire les aspects épidémiologiques et tomodensitométriques des traumatismes du rachis à Bouaké. Matériels et méthodes. Nous avons mené une étude rétrospective et descriptive sur une période de seize mois (de Janvier 2020 à Avril 2021).
Brou Lambert Yao   +9 more
doaj   +1 more source

VviUCC1 Nucleotide Diversity, Linkage Disequilibrium and Association with Rachis Architecture Traits in Grapevine

open access: yesGenes, 2020
Cluster compactness is a trait with high agronomic relevance, affecting crop yield and grape composition. Rachis architecture is a major component of cluster compactness determinism, and is a target trait toward the breeding of grapevine varieties less ...
J. Tello   +4 more
semanticscholar   +1 more source

Enhancing the Functional Properties of Polylactic Acid by Incorporation of Esterified Lignin

open access: yesJournal of Polymer Science, EarlyView.
Esterified lignin from agro‐industrial wastes enhances the hydrophobicity, UV‐shielding efficiency, and antioxidant capacity of polylactic acid composites. ABSTRACT Incorporating lignin as an additive is a promising strategy to overcome the limitations of PLA‐based composites.
Rogerio Martins Vieira   +6 more
wiley   +1 more source

The In Vitro Inhibitory Activity of Pacaya Palm Rachis versus Dipeptidyl Peptidase-IV, Angiotensin-Converting Enzyme, α-Glucosidase and α-Amylase

open access: yesPlants
The pacaya palm (Chamaedorea tepejilote Liebm) is an important food that is commonly consumed in Mexico and Central America due to its nutritive value.
Aurea Bernardino-Nicanor   +4 more
doaj   +1 more source

Une cause rare de compression médullaire: kyste arachnoïdien épidural rachidien (à propos de 03 cas)

open access: yesThe Pan African Medical Journal, 2017
Le kyste arachnoïdien épidural rachidien (KAER) est une affection bénigne, de physiopathologie encore incertaine. Il est le plus souvent asymptomatique mais peut causer des séquelles neurologiques graves surtout quand le traitement n'est pas instauré à ...
Abderrazzak El Saqui   +4 more
doaj   +1 more source

Past, present and future of local crop evolution

open access: yesPLANTS, PEOPLE, PLANET, EarlyView.
Promoting agrobiodiversity is a promising strategy for mitigating the negative effects of climate change on global food security. We highlight the central role evolutionary processes play in harnessing the potential of local crops by integrating genomics, archaeology, ethnobotany and traditional ecological knowledge (TEK).
Nataly Allasi Canales   +6 more
wiley   +1 more source

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