Results 41 to 50 of about 1,994 (158)

Apocynaceae wood evolution matches key morphological innovations

open access: yesAmerican Journal of Botany, Volume 111, Issue 11, November 2024.
Abstract Premise This paper provides an overview of the wood anatomy of the dogbane family (Apocynaceae), reconstructs wood anatomical trait evolution, and links this evolution with woody growth‐form transitions and floral and seed trait innovations across the family.
Vicky Beckers   +4 more
wiley   +1 more source

Relación de severidad de los deterioros de los pavimentos flexibles con la transitabilidad

open access: yes, 2021
Objective: To determine the severity of the surface deterioration of flexible pavements and its relationship with passability. Hypothesis: There is a relationship between the severity of flexible pavements and walkability, at a significance level (P> ...
León Bobadilla, Abner Itamar
core   +2 more sources

Chloroplast NADH dehydrogenase‐like complex‐mediated cyclic electron flow is the main electron transport route in C4 bundle sheath cells

open access: yesNew Phytologist, Volume 243, Issue 6, Page 2187-2200, September 2024.
Summary The superior productivity of C4 plants is achieved via a metabolic C4 cycle which acts as a CO2 pump across mesophyll and bundle sheath (BS) cells and requires an additional input of energy in the form of ATP. The importance of chloroplast NADH dehydrogenase‐like complex (NDH) operating cyclic electron flow (CEF) around Photosystem I (PSI) for ...
Maria Ermakova   +7 more
wiley   +1 more source

Contribuição para melhoria do desempenho dos pavimentos urbanos através do controle de qualidade do reaterro de valas de serviços concessionados [PDF]

open access: yes, 2012
Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro Tecnológico, Programa de Pós-Graduação em Engenharia Civil, Florianópolis, 2010A crescente demanda por serviços concessionados de água, esgoto, gás, energia e telecomunicações, além ...
Garcez, Arnaldo Carvalho
core  

Decoupling cell size homeostasis in diatoms from the geometrical constraints of the silica cell wall

open access: yesNew Phytologist, Volume 243, Issue 1, Page 258-270, July 2024.
Summary Unicellular organisms are known to exert tight control over their cell size. In the case of diatoms, abundant eukaryotic microalgae, two opposing notions are widely accepted. On the one hand, the rigid silica cell wall that forms inside the parental cell is thought to enforce geometrical reduction of the cell size.
Diede de Haan   +6 more
wiley   +1 more source

Desarrollo de software para el diseño de pavimentos flexibles con geosintéticos

open access: yes, 2021
En el presente trabajo, se expone el procedimiento llevado a cabo para el desarrollo de un software de fácil manejo, capaz de diseñar pavimentos flexibles con geosintéticos de manera automatizada, siguiendo la metodología AASHTO.
Zuzunaga Sánchez, Camilo Andrés
core   +1 more source

Estimación del módulo resiliente para materiales granulares de Costa Rica

open access: yesInfraestructura Vial, 2020
El módulo resiliente es una medida de la capacidad de un material de almacenar o absorber energía sin que este experimente deformación permanente. Este se determina mediante ensayos triaxiales de carga repetida y es un parámetro importante en el análisis
Juan Carlos Múnera Miranda   +1 more
doaj   +1 more source

How and why do species break a developmental trade‐off? Elucidating the association of trichomes and stomata across species

open access: yesAmerican Journal of Botany, Volume 111, Issue 5, May 2024.
Abstract Premise Previous studies have suggested a trade‐off between trichome density (Dt) and stomatal density (Ds) due to shared cell precursors. We clarified how, when, and why this developmental trade‐off may be overcome across species. Methods We derived equations to determine the developmental basis for Dt and Ds in trichome and stomatal indices (
Alec S. Baird   +12 more
wiley   +1 more source

Comportamiento Estructural de la Transmision de Cargas de Pavimentos Flexibles con Refuerzo de Geotextiles [PDF]

open access: yes, 2022
La presente investigación se formula como problema general ¿Cómo es el comportamiento estructural en la transmision de cargas de pavimentos flexibles con incidencia de geotextiles tipo GT320P?, así mismo el objetivo general será Determinar el ...
Vega Rodriguez, Fiorella
core  

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