Search for dissertations about: "G. D Costa"

Found 2 swedish dissertations containing the words G. D Costa.

2. 1. Environmental history in southern Mozambique : Reconstruction of flooding events, hydroclimate and sea-level dynamics since mid-Holocene

   Author : Sandra Raúl Sitoe; Jan Risberg; Elin Norström; Lars-Ove Westerberg; John Compton; Stockholms universitet; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; Southern Africa; Limpopo River floodplain; flooding event; sea-level change; climate change; diatoms; phytoliths; mineral magnetics; grain-size; radiocarbon dating; kvartärgeologi; Quaternary Geology;

   Abstract : The aim of this thesis has been to reconstruct paleoenvironment, paleohydrology and paleoclimate in coastal southern Mozambique, with emphasis on tracing past flooding events on the lower Limpopo River floodplain. In order to extend flood chronologies beyond periods covered by instrumental data, sediments from lakes on the floodplain were studied (Lake Lungué, Coassane Oxbow, Lake Magandane and Lake Soane). READ MORE

4. 2. Studies of the prevalence of asthma and allergy i Costa Rican school children

   Author : Manuel E. Soto-Quiros; Göteborgs universitet; []
   Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Asthma; rhinitis; eczema; children; prevalence; Costa Rica;

   Abstract : Objectives The main aims of our study were: To determine the prevalence and severity of asthma, rhinitis, rhinoconjuntivitis and dermatitis in school children from Costa Rica (I, IV, V) to make international comparisons and to identify possible risk factors associated with these conditions (II, III).Methods Using nationally representative samples of 9931 school children from Costa Rica during the last 10 years (from 1989 to 1998) we have performed three studies. READ MORE