Results 171 to 180 of about 1,434,106 (265)

O Complexo Máfico-Ultramáfico Jurema: descoberta de corpo mineralizado em Fe-Ti ± V ± Co em Betânia, Pernambuco, Zona Transversal, Província Borborema [PDF]

open access: yesInforme Técnico CPRM, 2016
Felipe Lima   +7 more
openaire   +1 more source

Ecosystem‐Scale Methane Emissions From Peatlands of the Hudson Bay Lowlands

open access: yesJournal of Geophysical Research: Biogeosciences, Volume 131, Issue 5, May 2026.
Abstract Northern peatlands are important sources of methane (CH4) in the atmosphere. However, the magnitude of CH4 emissions and their response to environmental factors are poorly constrained within the Hudson Bay Lowlands (HBL), the largest contiguous peatland complex in North America. This study investigated seasonal (April–November) eddy covariance‐
A. Bieniada, E. R. Humphreys
wiley   +1 more source

Acidentes de trabalho na zona rural de Pelotas, Rio Grande do Sul, Brasil: um estudo transversal de base populacional Rural work-related accidents in Pelotas, Rio Grande do Sul State, Brazil: a population-based cross-sectional study

open access: yesCadernos de Saúde Pública, 2001
São escassos os estudos de base populacional sobre a ocorrência de acidentes de trabalho rural. Para investigar este tema, realizou-se em Pelotas, Rio Grande do Sul, um estudo transversal com o objetivo de verificar a ocorrência e as características dos acidentes do trabalho rural.
Marta Fernanda Fehlberg   +2 more
openaire   +1 more source

Beyond the Barrier: Epithelial Cells as Immune Sentinels in the Female Genital Tract

open access: yesAmerican Journal of Reproductive Immunology, Volume 95, Issue 5, May 2026.
ABSTRACT Epithelial cells (ECs) of the female genital tract (FGT) serve as an essential barrier and the first line of defense against sexually transmitted pathogens. Beyond providing a physical barrier, these cells actively contribute to immune responses through pathogen recognition, cytokine release, and modulation of adaptive immune responses ...
Lauren Jirik   +3 more
wiley   +1 more source

Zona de incidencia de una sonda tetrapolar para la espectroscopia de impedancia eléctrica en tejido humano in-vivo

open access: yesRevista UIS Ingenierías, 2006
Se presentan los resultados parciales de un estudio de detección temprana de cáncer de cuello uterino basado en espectroscopía de impedancia eléctrica. En el presente artículo se analiza el área de incidencia de la sonda utilizada para la medición de la ...
David Alejandro Miranda Mercado   +1 more
doaj  

Kisspeptin as a test of hypothalamic dysfunction in pubertal and reproductive disorders

open access: yesAndrology, Volume 14, Issue 4, Page 1002-1016, May 2026.
Abstract The hypothalamic–pituitary–gonadal axis is regulated by the gonadotropin‐releasing hormone pulse generator in the hypothalamus. This is comprised of neurons that secrete kisspeptin in a pulsatile manner to stimulate the release of GnRH, and, in turn, downstream gonadotropins from the pituitary gland, and subsequently sex steroids and ...
Aureliane C. S. Pierret   +5 more
wiley   +1 more source

Generation of Cloned Sheep Lacking Galactose‐α1,3‐Galactose and N‐Glycolylneuraminic Acid Antigens

open access: yesXenotransplantation, Volume 33, Issue 3, May/June 2026.
ABSTRACT Livestock have long been regarded as a potential source of donor organs to alleviate the global organ shortage for transplantation. Sheep have a similar anatomy to humans, providing the standard model for demonstrating biocompatibility and performance of biological heart valves to obtain regulatory approval for their use in transplantation ...
Sarah J. Appleby   +9 more
wiley   +1 more source

Morbilidad dermatológica pediátrica en consulta externa. Jatibonico. Abril 2004- marzo 2005.

open access: yesGaceta Médica Espirituana, 2012
Se realizó un estudio descriptivo, transversal para caracterizar la morbilidad dermatológica pediátrica de consulta externa en el municipio Jatibonico, en el período comprendido entre abril del 2004 y marzo del 2005, a partir de una muestra de 232 ...
Yoel Rodríguez Hernández   +3 more
doaj  

Meridional Dipole in Eddy Activity Along Peruvian Coast During Eastern Pacific El Niño Events

open access: yesGeophysical Research Letters, Volume 53, Issue 8, 28 April 2026.
Abstract Mesoscale oceanic eddies (O $O$(100)km) play a key role in regulating climate by affecting the transport of heat and water mass properties. However, most climate models struggle to simulate these eddies due to coarse horizontal resolution. Using a 120‐year ultra‐high‐resolution simulation with 1/10° ${}^{\circ}$ horizontal ocean resolution ...
Carlos Conejero   +5 more
wiley   +1 more source

Satellite‐Based Detection of Methane Emissions From Permafrost Peatland Warming

open access: yesGeophysical Research Letters, Volume 53, Issue 7, 16 April 2026.
Abstract Column‐averaged methane (XCH4) observations spanning 2018–2023 by the Tropospheric Monitoring Instrument (TROPOMI) on the Sentinel‐5 Precursor satellite are assessed for evidence of methane (CH4) emissions from permafrost regions. Bi‐monthly TROPOMI XCH4 anomaly maps and soil temperature (Tsoil) anomaly maps from reanalysis data are generated ...
Ray Nassar   +7 more
wiley   +1 more source

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