منابع مشابه
Cichlid Fishes in the Angolan Headwaters Region: Molecular Evidence of the Ichthyofaunal Contact between the Cuanza and Okavango-Zambezi Systems
The headwaters of five large African river basins flow through the Bié Plateau in Angola and still remain faunistically largely unexplored. We investigated fish fauna from the Cuanza and Okavango-Zambezi river systems from central Angola. We reconstructed molecular phylogenies of the most common cichlid species from the region, Tilapia sparrmanii and Serranochromis macrocephalus, using both mit...
متن کاملA biogeographical regionalization of Angolan mammals
Patrícia RODRIGUES Instituto de Investigação Científica Tropical, R. da Junqueira, 86 – 1°, 1300-344 Lisboa, Portugal, and CIBIO/InBio – Centro de Investigação em Biodiversidade e Recursos Genéticos, Universidade do Porto, Campus Agrário de Vairão, 4485-661 Vairão, Portugal. E-mail: [email protected] Rui FIGUEIRA Instituto de Investigação Científica Tropical, R. da Junqueira, 86 – 1...
متن کاملEmotional distress in Angolan patients with several types of tuberculosis.
BACKGROUND There is growing evidence that emotional distress expressed in terms of anxiety and depression is very high among tuberculosis (TB) patients. OBJECTIVES This study aims to determine levels of anxiety, depression and emotional distress in patients with several types of TB and to determine the association between social-demographic and economical factors, clinical variables and anxie...
متن کامل[Regionalization of health services: challenges for the Angolan case].
This article presents the health situation in Angola from 2000 to 2007, discussing regionalization of the health system as an important instrument for improving access and the use of health services in the country, besides highlighting the conditions and challenges for implementation. The article is based on a literature review of: (a) Brazilian authors, considering that health reform is still ...
متن کاملTeleost Fishes
The ulstrastructure of the saccular and lagenar maculae were studied in 15 species of teleost fishes, using the scanning electron microscope. Particular attention was paid to hair cell orientation patterns, composition of the ciliary bundles on the hair cells, hair cell distributions, and supporting cell types. The hair cells on both otolithic organs are divided into several groups with all of ...
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ژورنال
عنوان ژورنال: Nature
سال: 1968
ISSN: 0028-0836,1476-4687
DOI: 10.1038/220405b0