Results 21 to 30 of about 3,349 (206)

Parental care in the Small Tree Finch Camarhynchus parvulus in relation to parasitism and environmental factors

Ibis, Volume 163, Issue 1, Page 137-149, January 2021., 2021
The parental food compensation hypothesis suggests that parents may compensate for the negative effects of parasites on chicks by increased food provisioning. However, this ability differs widely among host species and may also depend on ecological factors such as adverse weather conditions and habitat quality.
Eileen Heyer, Arno Cimadom, Christian Wappl, Sabine Tebbich   +3 more
wiley   +1 more source

Comparación cefalométrica entre un paciente acromegálico y su hermano gemelo [PDF]

Odontoestomatología
Resumen: La acromegalia es una enfermedad caracterizada por una desfiguración somática de progresión lenta causada por la sobreproducción de hormona de crecimiento (GH) y factor de crecimiento insulinoide tipo 1 (IGF-1), predominantemente asociada con un
Tomás Freundlich, David Arueste, Germán Manríquez, Alejandro Díaz   +3 more
doaj   +3 more sources

Arquitectura básica de diseño de gemelos digitales para la construcción

Revista de Investigación, Desarrollo e Innovación, 2022
Los gemelos digitales replican el funcionamiento de un objeto o proceso en un modelo virtual que sirve como base para la experimentación. Los modelos de información de la construcción o BIM, están impulsando la digitalización del sector constructivo ...
Héctor Martínez-Manso, Tatiana Delgado-Fernández   +1 more
doaj   +1 more source

Imperfect twinning: a clinical and ethical dilemma

Revista Paulista de Pediatria, 2013
OBJECTIVE To review the history, epidemiology, etiology, gestational aspects, diagnosis and prognosis of imperfect twinning. DATA SOURCES Scientific articles were searched in PubMed, SciELO and Lilacs databases, using the descriptors "conjoined twins ...
Daniela Denardin, Jorge Alberto B. Telles, Rosilene da Silveira Betat, Paulo Renato K. Fell, André Campos da Cunha, Luciano Vieira Targa, Paulo Ricardo G. Zen, Rafael Fabiano M. Rosa   +7 more
doaj   +1 more source

Fetus In Fetu: caso clínico estudiado con tomografía tridimensional [PDF]

Revista Médica Hondureña, 2021
Antecedentes: Fetus in fetu (FIF) es una rara anomalía congénita de gemelos monocigotos asimétricos, donde el gemelo parásito se desarrolla anormalmente dentro del cuerpo del gemelo huésped.
Gladys Hilda Virginia Ordóñez, Carlos Fernando Rosales Ordoñez, Enrique Antonio Tomé, Carlos Almílcar Godoy Mejía, Heriberto Rodríguez Gudiel   +4 more
doaj   +1 more source

Estudio genético en gemelos [PDF]

Revista chilena de pediatría, 1991
During the period June 1987 - January 1988, 35 consecutive pairs of twins born at two maternity hospitals in the northern area of Santiago were studied to search evidence of genetic or other factors which could eventually favour twinning. Sixteen of these pairs ware considered to be monozygotic (MZ) after studying five blood group systems (ABO, Rh ...
Daher N, Vera, Youlton R, Ronald, Nazer H, Julio, Cifuentes O, Lucia   +3 more
openaire   +2 more sources

Under adverse conditions, older small tree finch males (Camarhynchus parvulus) produce more offspring than younger males

Ethology, Volume 126, Issue 10, Page 966-975, October 2020., 2020
In many bird species, females paired with older males have a higher breeding success. Small tree finches are heavily affected by an invasive nest parasite. Nests of older males had more fledglings than those of younger males. However, the difference in breeding success disappeared when parasites were experimentally reduced with the insecticide ...
Christian Wappl, Arno Cimadom, Nikolaus Filek, Eileen Heyer, Sabine Tebbich, Walter Koenig   +5 more
wiley   +1 more source

Gemelos Parápagos Dicéfalos: reporte de caso [PDF]

, 2023
Los gemelos siameses hacen referencia de la presencia de dos fetos unidos entre sí en distintas zonas anatómicas por consecuencia de una imperfecta separación del disco embrionario que normalmente sucede alrededor del día 13 de la concepción ...
Ruiz Jumbo , Karla Leonela
core   +3 more sources

Gemelos siameses toracópagos en un hospital público de Ecuador: Reporte de caso

QhaliKay, 2022
Los gemelos siameses son una entidad poco común, asociada a una morbilidad y mortalidad significativas. Se clasifican según el sitio de unión más prominente en tres grupos principales: ventral, dorsal o lateral.
Richard Isaac Toapanta Pullutasig, Lidia Andrea Espinales Casanova, Cesar Augusto Rodríguez Orellana, Martha Fernández Bowen   +3 more
doaj   +1 more source

Gemelos digitales y democracia

Revista del CLAD Reforma y Democracia, 2022
The aim of this study is to critically analyze the challenges and possibilities underlying the application of participatory processes based on artificial intelligence algorithms in politics. It will focus on the proposal of augmented democracy which is being designed and developed from different technological and academic fields based on digital twins ...
openaire   +2 more sources