Results 101 to 110 of about 2,317,829 (309)
International Journal of Mechanical System Dynamics, EarlyView.ABSTRACT This work addresses the challenge of bidirectional trajectory tracking in solar‐powered wheeled mobile robots (WMRs), considering the mechanical structure, actuator‐driver, and power stage subsystems. Notably, this is the first study to explicitly model and control the actuator‐driver subsystem within this context. The proposed solution relies
Benjamin Natanael Santiago‐Nogales +8 more
wiley +1 more source
Arquitectura y urbanismo de Machaquilá, Petén, Guatemala [PDF]
, 2011 El artículo analiza la arquitectura de la ciudad maya de Machaquilá (Petén, Guatemala) a través de la descripción y discusión de las técnicas constructivas, los tipos de edificios y conjuntos y la decoración adosada a los edificios, añadiendo asimismo un
Adánez Pavón, Jesús +1 more
core +3 more sources
Nordic Journal of Botany, EarlyView.Passiflora clypeophylla, an endemic species to the Guatemalan karstic forests last seen in 1889 and deemed extinct, was rediscovered in the Department of Alta Verapaz, east of Cobán. The species was known only from a single specimen hailed from the type locality, Rubel Cruz, where it has been found again. An additional location has been identified in a
J.R. Kuethe +3 more
wiley +1 more source
De la lingüística a las aulas: ideologías en la educación peruana
Lexis, 2019 Desde la noción de mercado simbólico y la visión de la práctica educativa como un instrumento de distinción social (Bourdieu 2002, 2008a, 2008b, 2013), nos preguntamos en este artículo por los vínculos entre la lingüística y la educación en el Perú. Para
Luis Andrade Ciudad, Virginia Zavala
doaj +1 more source
Interrelació entre evolució i desenvolupament embrionari [PDF]
, 2010 El desenvolupament embrionari és un procés complex pel qual una cèl·lula ou es transforma, després de la fecundació, en un organisme adult. Aquestes transformacions estan controlades per xarxes d'interacció entre gens.
Salazar Ciudad, Isaac
core +1 more source
Mechanistic Insight into the Enzymatic Reduction of Truncated Hemoglobin N of Mycobacterium tuberculosis: role of the CD loop and pre-A Motif in electron cycling [PDF]
, 2014 Background: The HbN of Mycobacterium tuberculosis carries a potent nitric-oxide dioxygenase activity despite lacking a reductase domain. Results: The NADH-ferredoxin reductase system acts as an efficient partner for the reduction of HbN.
Bidon Chanal, Axel +12 more
core +2 more sources
Street Art & Urban CreativityCon la mejora de las infraestructuras viarias durante los últimos años el municipio de Villaviciosa se ha ido integrado plenamente en la región urbana central de Asturias, de la que conforma su borde nororiental. No obstante, la mejora de la conectividad con este espacio aglutinador de población, actividad y servicios ha generado tensiones de diversa ...
Luis Carlos Martínez Fernández +1 more
openaire +1 more source
Hechtia mixtecana sp. nov. (Hechtioideae; Bromeliaceae), from Oaxaca, Mexico
Nordic Journal of Botany, EarlyView.Botanical explorations carried out in the state of Oaxaca, Mexico, led to the discovery of a new Bromeliaceae: Hechtia mixtecana,which is here described and illustrated. The new taxon is compared with the morphologically similar Hechtia fragilis, Hechtia lyman‐smithii, and Hechtia minuta.
Rodrigo Alejandro Hernández‐ Cárdenas +4 more
wiley +1 more source
Live Cell Imaging Unveils Multiple Domain Requirements for In Vivo Dimerization of the Glucocorticoid Receptor [PDF]
, 2014 Glucocorticoids are essential for life, but are also implicated in disease pathogenesis and may produce unwanted effects when given in high doses.
Alvarez, Lautaro Damian +14 more
core +3 more sources
PLANTS, PEOPLE, PLANET, EarlyView.Societal Impact Statement As herbaria digitize millions of plant specimens, ethnobotanical information associated with them is becoming increasingly accessible. These biocultural data include plant uses, names, and/or management practices of Indigenous Peoples and Local Communities (IPLCs).
Robbie Hart +23 more
wiley +1 more source