Results 51 to 60 of about 48,986 (277)

Engineering of Active Sites in Metal‐Organic Frameworks for Friedel–Crafts Alkylation

open access: yesChemCatChem, Volume 17, Issue 2, January 22, 2025.
Metal Organic Frameworks with Lewis acid/Bronsted acid sites or hydrogen bonding donor sites are potential catalysts to promote the widely employed Friedel–Crafts alkylation to form C─C bonds between arenes and electron‐poor olefins, alcohols, or alkyl bromides.
Arputham Shophia Lawrence   +5 more
wiley   +1 more source

Analysis of neurovascular unit after voluntary physical exercise in a transgenic mouse of Alzheimer’s disease

open access: yesAlzheimer's &Dementia, Volume 20, Issue S1, December 2024.
Abstract Background Alzheimer’s disease (AD) stands out as the most prevalent neurodegenerative condition globally, marked by a progressive cognitive decline. Its distinctive histopathological features include neurofibrillary tangles composed of Tau protein aggregates and amyloid beta (Aβ) aggregates forming neuritic plaques in the parenchyma and ...
José de Jesús Andrade   +3 more
wiley   +1 more source

La práctica médica en los textos quirúrgicos españoles en el siglo XVIII [PDF]

open access: yes, 2002
En este trabajo se pretende mostrar que los textos escritos por los médicos cirujanos españoles del siglo XVI contienen abundante información sobre la práctica quirúrgica cotidiana.
Fresquet Febrer, José Luis
core   +2 more sources

TEK gene‐related primary congenital glaucoma: Phenotypic features and mutational spectrum in a Mexican cohort of 10 unrelated families

open access: yesAmerican Journal of Medical Genetics Part A, Volume 194, Issue 10, October 2024.
Abstract Primary congenital glaucoma (PCG) is one of the leading causes of visual damage and blindness, severely affecting the quality of life of affected children. It is characterized by cupping of the optic disc and loss of ganglion cells due to elevated intraocular pressure. While most PCG patients exhibit epiphora, photophobia, and buphthalmos with
Oscar Francisco Chacon‐Camacho   +13 more
wiley   +1 more source

Neoplasias mucinosas del páncreas: caso clínico y revisión de la literatura

open access: yesRevista Colombiana de Gastroenterología, 2018
Las neoplasias quísticas mucinosas del páncreas son lesiones relativamente frecuentes, afectan principalmente a mujeres perimenopausicas, la mayoría son únicos, localizados en el cuerpo y la cola del páncreas, no tiene comunicación con el sistema ductal ...
Dinimo José Bolívar Sáenz   +4 more
doaj  

El Real Tribunal del Protomedicato y la profesión quirúrgica española en el siglo XVIII [PDF]

open access: yes, 1996
Los distintos acercamientos realizados hasta la fecha acerca del Real Tribunal del Protomedicato no han terminado de perfilar sus niveles de actuación y sus conexiones con el resto de organizaciones que controlaron el ejercicio de las profesiones ...
Astrain Gallart, Mikel
core   +1 more source

Periodontitis exacerbation during pregnancy in mice: Role of macrophage migration inhibitory factor as a key inductor

open access: yesJournal of Periodontal Research, Volume 59, Issue 2, Page 267-279, April 2024.
Abstract Objective The present study was designed to investigate the role of macrophage migration inhibitory factor (MIF) in the exacerbation of pregestational periodontal disease (PGPD). Background Periodontitis (PT) is a severe stage of periodontal disease characterized by inflammation of the supporting tissues of the teeth, which usually worsens ...
Betsaida J. Ortiz‐Sánchez   +7 more
wiley   +1 more source

Los estudios historicomédicos sobre el Tribunal del Protomedicato y las profesiones y ocupaciones sanitarias en la Monarquía Hispánica durante los siglos XVI al XVIII [PDF]

open access: yes, 1996
Presentamos un repertorio con 253 referencias donde pretendemos recoger los trabajos que se han ocupado directa e indirectamente hasta la fecha del estudio del Real Tribunal del Protomedicato. Para su confección se ha recurrido, con un punto de vista muy
López-Terrada, Maríaluz
core   +2 more sources

Notes on the ecology and distribution of a water flea complex (Anomopoda, Daphniidae) revealed by new DNA barcodes in the Iberian Peninsula

open access: yesZoologica Scripta, Volume 53, Issue 1, Page 98-112, January 2024.
Abstract Available DNA barcodes of freshwater zooplankton are scarce in regions like the Iberian Peninsula, which harbours many rare and endemic species and is considered a hotspot of crustacean biodiversity. Recently, a new species of Ceriodaphnia (Cladocera: Daphniidae) was described using morphological analysis of specimens in the Mediterranean ...
Charo López‐Blanco   +4 more
wiley   +1 more source

La formación del cirujano moderno revisitada

open access: yesREVISTA VENEZOLANA DE CIRUGÍA, 2021
El progreso actual que ha alcanzado el mundo de la cirugía a nivel mundial desde la segunda mitad del siglo XX, la inconmensurable cantidad de conocimiento científico, avances tecnológicos , innovaciones terapéuticas, revolución del conocimiento y de la informática, diseños novedosos en el armamentarium quirúrgico, etc., han hecho necesario e ...
openaire   +3 more sources

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