Results 51 to 60 of about 18,687 (124)

Estudio histopatológico entre ratones infectados con Salmonella typhi sin vacunar y vacunados por diferentes vías con las vacunas polisacarídica y de células enteras

open access: yesVacciMonitor, 2000
La fiebre tifoidea constituye una enfermedad propia del hombre. La misma es causada por Salmonella typhi y produce una respuesta inflamatoria en el tracto intestinal.
Juan F. Infante   +7 more
doaj  

Application of a novel schema for describing fossil fern foliage and investigating taxonomic and morphological change across the Cretaceous–Paleogene boundary in western North America

open access: yesAmerican Journal of Botany, Volume 113, Issue 8, August 2026.
Abstract Premise The Chicxulub asteroid impact at the Cretaceous–Paleogene (K–Pg) boundary triggered a mass extinction 66 million years ago. Ferns thrived in the aftermath of the extinction, evidenced by the well‐documented “fern spore spike.” However, fern macrofossil records across the K–Pg boundary are less understood.
Fern B. Holian   +9 more
wiley   +1 more source

Efecto inmunomodulador de la solución CM-95 tratada magnéticamente en ratones Balb/c inoculados con 5-fluorouracilo

open access: yesVacciMonitor, 2011
El 5-fluorouracilo es un antineoplásico usado en la terapia del cáncer y posee acción inmunosupresora al inhibir la proliferación de células del tejido hematopoyético.
Clara Martínez   +5 more
doaj  

Multidimensional workplace stressors differentially impact cognitive trajectories

open access: yesAlzheimer's &Dementia, Volume 22, Issue 8, August 2026.
Abstract INTRODUCTION Little research has assessed detailed occupational exposures in relation to the dementia exposome. We characterized patterns of multidimensional workplace stressors in relation to cognitive trajectories and racial disparities. METHODS We included 704 participants from the Michigan Cognitive Aging Project (MageT1 = 63.32 ± 2.99 ...
Monica E. Walters   +5 more
wiley   +1 more source

Partner Weight Loss and Diet Outcomes at 24 Months in a Randomized Controlled Trial of a Dyadic Versus Individual Weight Management Intervention

open access: yesObesity Science &Practice, Volume 12, Issue 4, August 2026.
ABSTRACT Background Including romantic partners as supports in behavioral weight management programs targeting index participants could yield spillover effects, but few studies have explored the effects on partners. Methods Dyads included an index participant with BMI ≥ 27 kg/m2 and a cohabitating partner with BMI ≥ 18 kg/m2 randomized to a participant‐
Kristen E. Gray   +12 more
wiley   +1 more source

CRC Dictionary of Agricultural Sciences.

open access: yesIssues in Science and Technology Librarianship, 2002
The article reviews the book CRC Dictionary of Agricultural Sciences. Boca Raton, Fla.: CRC Press, 2002 by Robert A. Lewis.
Helen F. Smith
doaj   +1 more source

Exhumation History of the Sangre de Cristo Range, Colorado, From Mid‐ to Low‐Temperature Thermochronology: New Insights Into Laramide Contraction and Oligocene–Miocene Extension in the Northern Rio Grande Rift, USA

open access: yesTectonics, Volume 45, Issue 8, August 2026.
Abstract The Sangre de Cristo Range in southern Colorado records a complex tectonic history that includes Late Cretaceous–Eocene Laramide contraction and Oligocene–Quaternary Rio Grande rift extension. We present new thermochronologic data (40Ar/39Ar, fission‐track, (U‐Th)/He) and thermal history models that provide insight into this polyphase history ...
John Singleton   +10 more
wiley   +1 more source

Exploring the Influence of Morphologic Heterogeneity and Discharge on Downstream Transport in Streams With Multiple Logjams: 2. Insight From Numerical Models

open access: yesWater Resources Research, Volume 62, Issue 8, August 2026.
Abstract Logjams in streams create complex morphologic features such as pools, bars, and branching channels that enhance stream water storage and force water through the streambed. We examine how these features alter solute retention in stream corridors as discharge increases, backwaters expand, new channels activate, and jams become more submerged ...
Xiaolang Zhang   +3 more
wiley   +1 more source

BOOK REVIEW: Cohen A.C.: Insect Diets: Science and Technology.

open access: yesEuropean Journal of Entomology, 2004
CRC Press, Boca Raton, London, New York, Washington, D.C., 2003, 344 pp. ISBN 0-8493-1577-8. Price GBP 87.00.
J. OLEJNÍČEK
doaj   +1 more source

Temperate tree species show cross‐tolerance to heat, drought, and late spring‐frost stress

open access: yesNew Phytologist, Volume 251, Issue 4, Page 1625-1630, August 2026.
Significant cross‐tolerance of leaf traits to heat, drought and late spring‐frost were found. (a) Turgor loss point vs lethal spring‐frost temperature. (b) Heat thermal threshold temperature vs lethal spring‐frost temperature. (c) Heat thermal threshold temperature vs turgor loss point.
Norbert Kunert   +5 more
wiley   +1 more source

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