听力与言语-语言病理学

行为科学

医学伦理学

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  • [Patterns of urinary aminoacid excretion in exceptional children and patients with mental disorders in Costa Rica].

    abstract::The amino acid profile was studied in individual random samples of urine from 1147 normal schoolchildren and 1074 exceptional children: 628 with mental retardation, 332 with hearing and speech defects and 114 with visual defects as well as in 673 patients with mental disorders. Laboratory procedures included chemical ...

    journal_title:Revista de biologia tropical

    pub_type: 杂志文章

    doi:

    authors: de Céspedes C,Santisteban I,Ortiz D,Rojas E,Rodríguez J,Nanne C,Orlich J

    更新日期:1983-06-01 00:00:00

  • [Comparative study of the isoenzymes of L-amino acid oxidase from the venom of Bothrops asper].

    abstract::A comparative study was performed between the isozymes 1 and 2b of the L-amino acid oxidase (E.C. 1.4.3.2) from the venom of Bothrops asper snakes captured in Costa Rica. The amino acid composition differs slightly: L-amino acid oxidase-1 (thn most anodal) shows more aspartic and glutamic acid residues than L-amino ac...

    journal_title:Revista de biologia tropical

    pub_type: 杂志文章

    doi:

    authors: Umaña V

    更新日期:1982-07-01 00:00:00

  • [Food consumption of children under 5 in rural communities of Costa Rica, 1977].

    abstract::Six Costa Rican communities of different ecological settings were selected for the study of food intake in children under 5 years of age. Intake was expressed as calorie and protein adequacy. Calorie deficiency was more prevalent than protein defficiency. Practically there were no differences in adequacy by age, altho...

    journal_title:Revista de biologia tropical

    pub_type: 杂志文章

    doi:

    authors: Brenes H,Mata L

    更新日期:1978-12-01 00:00:00

  • [Bacteriological study of bivalves from the Gulf of Nicoya, Costa Rica. I. Condition of the mollusk recently collected].

    abstract::During the first six months of 1970 we collected 16 lots of the bivalve Anadara tuberculosa from two areas within the Gulf of Nicoya, Costa Rica. These were examined bacteriologically and the coliform levels found in all of them were such that they had to be graded as not satisfactory for human consumption, according ...

    journal_title:Revista de biologia tropical

    pub_type: 杂志文章

    doi:

    authors: Fernández B,Brunker T

    更新日期:1977-07-01 00:00:00

  • Ecological aspects of water impoundment in the tropics.

    abstract::Recognition of the potentially harmful effects of water development in the tropics had led to increasing efforts to assess the environmental impact of such projects prior to construction. Decisions regarding the development or non-development of water resources must be based on sound investigation of both the long-and...

    journal_title:Revista de biologia tropical

    pub_type: 杂志文章

    doi:

    authors: Goldman CR

    更新日期:1976-06-01 00:00:00

  • [Effects of the ashes of the Irazu volcano (Costa Rica) on various insects].

    abstract::A study of the 1963-1965 eruptions of the Irazú volcano (Costa Rica) showed that the ashes altered the ecological conditions of a great number of insects. Experiments suggest a mechanical action of the abrasive particles on the epicuticle, making it permeable, and thus accelerating dehydration. Other insects, such as ...

    journal_title:Revista de biologia tropical

    pub_type: 杂志文章

    doi:

    authors: Wille A,Fuentes G

    更新日期:1975-12-01 00:00:00

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