Results 211 to 220 of about 17,626 (302)

A New Paradigm for Understanding the Rheology and Processability of Poly(p‐Phenylene Terephthalamide) Liquid‐Crystalline Solutions

Journal of Applied Polymer Science, EarlyView.
Kevlar is traditionally modeled as a rigid‐rod polymer, yet rheological behavior deviates from this assumption. The review introduces a novel “twist‐tie” entanglement theory for aramid polymer chains in the nematic liquid crystal state, providing a molecular explanation for deviations from rigid‐rod models. Understanding twist‐tie entanglement dynamics
Emma Egli, Jacob L. Pretko, Christopher W. Seay, Steven R. Lustig   +3 more
wiley   +1 more source

Season of birth in Puerto Rico: Rethinking changes in patterns using 90 years of births occurring under US occupation. [PDF]

Biodemography Soc Biol
Santos-Lozada AR, De Jesús Álvarez W.
europepmc   +1 more source

Turning a new leaf: PhenoVision provides leaf phenology data at the global scale

Applications in Plant Sciences, EarlyView.
Abstract Premise Plant phenology dictates many aspects of community function and ecosystem dynamics. Yet, global phenology data are still limited, especially in areas lacking monitoring programs. Here we present a new data resource, PhenoVision–Leaf, which extends a computer vision pipeline utilizing iNaturalist digital image vouchers to produce global‐
Erin L. Grady, Ellen G. Denny, Carrie E. Seltzer, John Deck, Daijiang Li, Russell Dinnage, Robert P. Guralnick   +6 more
wiley   +1 more source

Pest and Host Associations That Transcend Time: Assessing the Impact of Climate Change on Grape Berry Moth (<i>Paralobesia viteana</i>) and Its Hosts <i>Vitis riparia</i> and <i>Vitis labrusca</i> in North America. [PDF]

Ecol Evol
Gómez-Llano JH, Nava DE, Castro Llanos F, Acevedo FE.   +3 more
europepmc   +1 more source

Inter‐microscope comparability of dental microwear texture data obtained from different optical profilometers: Part II Deriving instrument‐specific correction equations for meta‐analyses using published data

The Anatomical Record, EarlyView.
Abstract Dental microwear texture analysis (DMTA) has emerged as a valuable method for investigating the feeding ecology of vertebrates. Over the past decade, three‐dimensional topographic data from microscopic regions of tooth surfaces have been collected, and surface texture parameters have been published for both extant and fossil species.
Mugino O. Kubo, T. Kubo, Ellen Schulz‐Kornas, T. M. Kaiser, Daniela E. Winkler   +4 more
wiley   +1 more source

Ethnomedicinal Knowledge of <i>Trichocentrum ascendens</i> (Orchidaceae) in an Indigenous Region of Oaxaca, Mexico. [PDF]

Plants (Basel)
García-Patiño MA, Lagunez-Rivera L, Barragán-Zárate GS, Ríos-Solis JA, Solano R.   +4 more
europepmc   +1 more source

An unusual titanosaur axis from the Upper Cretaceous of Brazil and its significance for sauropod anatomy and systematics

The Anatomical Record, EarlyView.
Abstract The Upper Cretaceous São José do Rio Preto Formation (Bauru Group, southeastern Brazil) has yielded a fragmentary but taxonomically diverse record of titanosaur sauropods, although elements from cervical series remain scarce. Here, we describe a nearly complete sauropod axis from the Vila Ventura Paleontological Area, representing an uncommon ...
Bruno A. Navarro, Jeffrey A. Wilson Mantilla, Jhonata H. A. Martins, Fabiano V. Iori, Leonardo S. Paschoa, Alberto B. Carvalho, Joseli M. Piranha, Hussam Zaher   +7 more
wiley   +1 more source

Synthesis of Pure Al and Al-GNP Composites via Powder Metallurgy for the Subsequent Development of Nanostructured Thin Films Using PLD. [PDF]

Molecules
Castañeda-Guzmán R, Rodríguez-Díaz RA, Felix-Contreras R, Lucero-Acuña JA, de la Vega Olivas J, Zavala-Rivera P, Porcayo-Calderon J.   +6 more
europepmc   +1 more source

Comparative cranial biomechanics reveal macroevolutionary trends in theropod dinosaurs, with emphasis on Tyrannosauroidea

The Anatomical Record, EarlyView.
Abstract Tyrannosaurus is viewed as a model organism in vertebrate paleontology, with numerous studies analyzing its feeding biomechanics. Nonetheless, the evolution of this feeding performance has been under‐addressed in Tyrannosauroidea, especially in basal tyrannosauroids. Here we used muscle‐force reconstruction and finite element analysis (FEA) to
Evan Johnson‐Ransom, Paul Gignac, Daniel E. Barta, Ryan N. Felice, Eric Snively   +4 more
wiley   +1 more source

Psychosocial risks faced by olive workers in Spain: evaluated using the 'Mini Psychosocial Factors' questionnaire. [PDF]

Inj Prev
Olivencia-Manzano M, Gómez-Galán M, Díaz-Pérez M, Callejon-Ferre AJ.   +3 more
europepmc   +1 more source