Results 141 to 150 of about 7,975 (256)

Experimental and design‐oriented research on fiber reinforced concrete segmental tunnel linings: A systematic review

open access: yesStructural Concrete, EarlyView.
Abstract The use of fiber reinforced concrete (FRC) in precast tunnel segments is among the most established and representative applications of this material. Over the past two decades, numerous tunnel linings were constructed with partial or total substitution of conventional steel reinforcement by fibers, this yielding to quantifiable benefits in ...
Vladimir Rusanov   +4 more
wiley   +1 more source

Unveiling the “Gray Zone”: Characterizing Young People's Moderate STEM Identities

open access: yesJournal of Research in Science Teaching, EarlyView.
ABSTRACT Understanding how students identify with STEM (Science, Technology, Engineering, Mathematics) is crucial for fostering broader and more equitable participation within these fields. While existing research has focused on students who either strongly identify with STEM or disengage from it, this study explores the moderate STEM identities of ...
Carme Grimalt‐Álvaro   +2 more
wiley   +1 more source

[Distribution of the COVID-19 vaccine: experience in EcuadorOperacionalização da vacinação contra a COVID‑19: experiência no Equador]. [PDF]

open access: yesRev Panam Salud Publica
Ruales J   +9 more
europepmc   +1 more source

Gobierno corporativo

open access: yes, 2013
Este trabajo estudia el efecto del gobierno corporativo, sobre los resultados financieros, para las firmas del sector real y financiero, adscritos a la superintendencia financiera de Colombia, entre los años 2007 y 2010. Usando datos de panel, se realizo la regresión de tres modelos econométricos, los cuales, mostraron dichos efectos sobre diferentes ...
openaire   +1 more source

Effects of Tributyltin Chloride on Human Neuronal Differentiation and Mice Brain Development

open access: yesEnvironmental Toxicology, EarlyView.
ABSTRACT According to the developmental origins of health and disease hypothesis, perinatal exposure to an environmental toxicant during the development of the nervous system could cause a permanent cellular modification that may promote the appearance of neurodegenerative diseases at an older age.
Ester López‐Gallardo   +10 more
wiley   +1 more source

Micronuclei and Other Nuclear Abnormalities in Patella Limpet as Biomarkers of Cytogenotoxicity in Recreational Port Waters

open access: yesEnvironmental Toxicology, EarlyView.
ABSTRACT Over the past decades, the growth in human population and economic activities has led to an increase in maritime traffic. This rise puts additional pressure on marine environments, vessel fuel spills being considered to have a major impact on the ecosystem.
Carlos Valiente‐Diaz   +2 more
wiley   +1 more source

Home - About - Disclaimer - Privacy