Results 121 to 130 of about 193,174 (281)

Hábitos, características psicosociales y resultados del aprendizaje en educandos de primaria en"Cayo Hueso", La Habana

open access: yesRevista Cubana de Higiene y Epidemiología
El Ministerio de Educación realiza acciones para lograr cumplir los objetivos de la Tercera Revolución Educacional; una es el proyecto multicéntrico, liderado por el Instituto Central de Ciencia Pedagógicas, "Aprendizaje para Todos", en el marco del cual
Mayelín Ortiz Martínez   +6 more
doaj  

Importância dos carrapatos na transmissão da febre maculosa brasileira. [PDF]

open access: yes, 2012
Introdução. Agente etiológico. Principal vetor no Brasil. Outras espécies de carrapatos de importância. Animais amplificadores. Epidemiologia. Manifestações clínicas. Diagnóstico. Tratamento.
ALMEIDA, R. F. C. de   +4 more
core  

Gastrointestinal helminths in calves and cows in an organic milk production system [PDF]

open access: yes, 2012
The main aim of this study was to determine the distribution of populations of gastrointestinal helminths in lactating crossbred cows and calves during the grazing season in an organic milk production system.
Amarante AFT   +19 more
core   +3 more sources

Risk factors for presentation to hospital with severe anaemia in Tanzanian children: a case-control study. [PDF]

open access: yes, 2002
In malaria endemic areas anaemia is a usually silent condition that nevertheless places a considerable burden on health services. Cases of severe anaemia often require hospitalization and blood transfusions. The objective of this study was to assess risk
Alonso PL   +38 more
core   +3 more sources

Cancro cítrico: epidemiologia e controle. [PDF]

open access: yes, 2019
bitstream/CPACT-2009-09/11812/1/documento_234 ...
KOLLER, O. C.   +4 more
core  

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