Results 21 to 30 of about 168 (107)

Intracellular Reactive Oxygen Species Generation Induced by High‐Frequency Ultrasound in Thickness Vibration Mode

open access: yesAdvanced Science, Volume 13, Issue 28, 18 May 2026.
Cell‐sized high‐frequency ultrasound using a lithium niobate transducer, previously ignored in reactive oxygen species (ROS) production, generated intracellular ROS at frequencies higher than conventionally used. The intracellular generation of ROS by cell‐sized high‐frequency ultrasound revealed in this study is expected to be applied to innovative ...
Kotaro Fujishiro   +4 more
wiley   +1 more source

Incremento en la dispersión de la onda P al disminuir el tiempo de eyección auricular en hipertensos y prehipertensos Increment in P wave dispersion by decreasing atrial ejection time in hypertensive and prehypertensive patients

open access: yesRevista Colombiana de Cardiología, 2011
Introducción: hace algunos años se viene estudiando la relación entre disfunción diastólica y dispersión de la onda P del electrocardiograma, y en este sentido, la ecocardiografía emerge como herramienta para mejorar la estratificación de riesgo en ...
Elibet Chávez   +7 more
doaj  

Liver Stiffness Characterization of OGTLKO Mouse Model of Progressive Liver Fibrosis

open access: yesJournal of Ultrasound in Medicine, Volume 45, Issue 5, Page 1069-1082, May 2026.
Objectives O‐GlcNAcylation plays a key regulatory role in hepatic physiology, and its disruption leads to fibrosis in liver‐specific OGT knockout mice (OGTLKO), making this model valuable for studying advanced metabolic dysfunction‐associated steatohepatitis (MASH).
Gilles Renault   +9 more
wiley   +1 more source

Dispersión de la onda P dependiente de la velocidad de la onda A del flujo de entrada mitral y de la presión arterial sistólica Dispersion of P wave dependent on wave A velocity of mitral inflow and systolic blood pressure

open access: yesRevista Colombiana de Cardiología, 2011
INTRODUCCIÓN: la hipertrofia ventricular izquierda, asociada a peor pronóstico cardiovascular, aumenta el riesgo de morbilidad y mortalidad cuando la misma se relaciona con paroxismos de fibrilación auricular; esta arritmia puede predecirse con la ...
Chávez Elibet   +7 more
doaj  

DISPERSIÓN DE LA ONDA P, USO DEL MÉTODO MANUAL DE MEDICIÓN COMO RECOMENDACIÓN PARA LA PRÁCTICA MÉDICA. EXPERIENCIA DEL CARDIOCENTRO ERNESTO CHE GUEVARA / P- wave dispersion, use of the manual method of measurement as a recommendation for medical practice. Experience at the Ernesto Che Guevara Cardiology Hospital [PDF]

open access: yesCorSalud, 2011
Since the discovery of atrial fibrillation, this disease hasbecome a huge potential market, which attracts considerable resources for its research. In the multivariatemodels, the established cardiovascular disease, hypertension,age and left ventricular ...
Elibet Chávez González   +1 more
doaj  

Seasonal variations of microplastics and plastisphere bacterial communities along Wuhan Reaches of Yangtze River

open access: yesRiver, Volume 5, Issue 1, Page 69-81, February 2026.
Abstract Microplastics are widely distributed in aquatic environment and serve as habitats for microbial communities, which pause threats to the ecosystem. In this study, the seasonal variations in microplastic abundance and biogeography of their associated plastisphere were studied from 14 sites along the Wuhan Reaches of Yangtze River across spring ...
Muthii P. Nyaga   +6 more
wiley   +1 more source

Saprolegnia parasitica S1 and S2 Strains Differ in Zoospore Transition Timing and Pathogenicity Against Juvenile Atlantic Salmon (Salmo salar)

open access: yesJournal of Fish Diseases, Volume 49, Issue 2, February 2026.
ABSTRACT S1 and S2 strains of S. parasitica are both common among diseased farmed salmonids in Nova Scotia, whereas globally S1 is rare and S2 is common. Following the initiation of asexual maturation and overnight incubation at 20°C then harvest, and incubation at 10°C in vitro, S2 secondary zoospores mostly transformed into cysts within 3 h, and by 6 
James Duston   +3 more
wiley   +1 more source

Quality of Local Rice Genotypes and Their Improvement With Urea and Fermented Rice Husk Ash

open access: yesAdvances in Agriculture, Volume 2026, Issue 1, 2026.
The quality and nutritional value of rice (Oryza sativa L.) are important for its economic value and for addressing malnutrition in developing countries. This study aims to identify local rice genotypes exhibiting high quality and high protein across various agroecosystems, and to increase rice protein content (PC) through the application of urea and ...
Nurhayati Nurhayati   +11 more
wiley   +1 more source

Amplificación del Segundo Armónico Mediante el Uso de un Cristal Fotónico Amplificación del Segundo Armónico Mediante el Uso de un Cristal Fotónico

open access: yesActa Universitaria, 2012
Presentamos evidencia experimental de la generación y amplificación de un haz de segundo armónico en una guía de onda plana de niobato de litio mediante la inscripción de un cristal fotónico unidimensional en dicha guía de onda.
G. Cerda-Villicaña   +13 more
doaj  

Synthesis and characterization of graphene oxide/titanium dioxide nanocomposites for enhanced photocatalytic applications

open access: yesJournal of Chemical Technology &Biotechnology, Volume 100, Issue 11, Page 2444-2454, November 2025.
Abstract BACKGROUND Graphene oxide (GO) is a derivative of graphene with hydrophilic properties and the ability to form stable aqueous suspensions. Titanium dioxide (TiO2), a semiconductor with photocatalytic activity, is often used as a matrix for GO in nanocomposites.
Artemis Vagena   +2 more
wiley   +1 more source

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