Results 121 to 130 of about 20,614 (221)

Characterization and phylogenetic relationships of strains of Dengue type 1 virus from Costa Rica

Revista de Biología Tropical, 2007
Phylogenetic analysis of the envelope gene sequence (E) of three isolated Dengue virus type 1 (DEN1) sequences from the Costa Rican 1993 epidemic was performed. All the strains fell into genotype V.
César-Alonso Cerdas-Quesada, Axel P Retana-Salazar   +1 more
doaj  

Evolución del metabolismo: desde las porfirinas hacia la fotosíntesis [PDF]

, 2009
Las rutas metabólicas son series de reacciones bioquímicas sucesivas catalizadas por enzimas que en su conjunto constituyen un proceso de extraordinaria complejidad que llamamos metabolismo celular.
Pérez-Urria Carril, Elena
core   +1 more source

A phylogeny of howler monkeys (Cebidae: Alouatta) based on mitochondrial, chromosomal and morphological data

Revista de Biología Tropical, 2004
The current taxonomic status of the species and subspecies belonging to the genus Alouatta is addressed by combined phylogenetic analysis using morphological, kariotipyc and molecular data (mitochondrial genes cytocrome oxidase II and cytochrome B).
Federico Villalobos, Alejandro A Valerio, Axel P Retana   +2 more
doaj  

Taxonomy "under construction": advances in the systematics of Apocynaceae, with emphasis on the Brazilian Asclepiadoideae

Rodriguésia
The Apocynaceae comprise approximately 5,000 species and are widely distributed. The family belongs to the Gentianales and can be easily recognized by the presence of latex and a style-head derived from the fusion of two carpels at the apex of the styles.
Alessandro Rapini
doaj   +1 more source

Perspectivas para la biopsicología de la sprimeras décadas del siglo XXI [PDF]

, 1998
The paper sketches the potential developments of biopsychology during the beginning of the 21st century from the perspective of the senior author who started his career as a bsiologist and is ending it as a psychologist.
Arcebo, Martín, Delius, Juan D., Godoy, Adriana   +2 more
core   +1 more source

"Feijão com arroz": identificação de metas no estudo de gramí­neas e leguminosas do Centro-Oeste

Heringeriana, 2014
"Feijão com arroz" é uma combinação presente na mesa da maioria dos brasileiros. As gramí­neas (Poaceae) e leguminosas (Fabaceae) destacam-se por sua importância sob diversos aspectos, especialmente como componentes autóctones no Centro-Oeste, com uma ...
Regina Célia Oliveira, José Francisco Montenegro Valls   +1 more
doaj  

Phylogenetic analysis of G. "Panthera" species [PDF]

, 2016
[Resumen] En este trabajo se llevan a cabo tres tipos de análisis en cinco de los genes mitocondriales presentes en las especies y subespecies del género Panthera.
Roca Couso, Rocío
core  

Sinopsis de la familia Anacadiaceae [PDF]

, 2018
La familia de las Anacardiaceae está compuesta por árboles y arbustos perennifolios o caducifolios, y lianas. Las hojas suelen ser alternas, rara vez opuestas, generalmente pinnadas compuestas, aunque en algunas especies son simples.
Cabezas Savariego, Sandra
core  

Recombination events drives the emergence of Colombian Helicobacter pylori subpopulations with self-identity ancestry. [PDF]

Virulence, 2022
Guevara-Tique AA, Torres RC, Bravo MM, Carvajal Carmona LG, Echeverry de Polanco MM, Bohórquez ME, Torres J.   +6 more
europepmc   +1 more source

Genetic diversity of Trypanosoma cruzi strains isolated from chronic chagasic patients and non-human hosts in the state of São Paulo, Brazil. [PDF]

Mem Inst Oswaldo Cruz, 2022
Souza TKM, Westphalen EVN, Westphalen SDR, Taniguchi HH, Elias CR, Motoie G, Gava R, Pereira-Chioccola VL, Novaes CTG, Carvalho NB, Bocchi EA, Cruz FDDD, Rocha MC, Shinjo SK, Shikanai-Yasuda MA, Ortiz PA, Teixeira MMG, Tolezano JE.   +17 more
europepmc   +1 more source