Heitor Matallo
Biographic Data
| ID | 7176852 |
|---|---|
| NAME | Heitor Matallo |
| GIVEN NAMES | Heitor |
| FAMILY NAME | Matallo |
| SIGNATURE | MATALLO H |
| AFFILIATIONS | National Institute of Science and Technology |
| ORCID | 0009-0001-1337-746X |
| VERIFIED | Yes |
| TOTAL WORKS | 4 |
| TOTAL CITATIONS | 0 |
| WORKS AS AUTHOR | 4 |
| WORKS AS EDITOR | 0 |
| FIRST PUBLICATION YEAR | 2002 |
| LATEST PUBLICATION YEAR | 2026 |
| H-INDEX | 0 |
The Misunderstood Comet
This paper commemorates the centenary of Cecilia Payne’s Stellar Atmospheres ... (1925), a doctoral thesis that fundamentally reshaped astrophysics by establishing hydrogen as the primary constituent of stars. Payne’s application of Meghnad Saha’s ionization theory to Harvard’s spectral data overturned the prevailing assumption that stars shared the Earth’s composition. Although Henry Norris Russell initially advised caution, regarding her conclu…
Cecilia Payne’s Stellar Atmospheres at 100
Epistemologia da ignorância
Conhecimento é entendido como o oposto de ignorância. O mundo ocidental, desde os seus primórdios, luta por obter conhecimento e vencer a ignorância. Isso levou à ideia de que a ignorância não é um objeto do conhecimento e a epistemologia (bem como a Filosofia da Ciência) não devotou uma linha sequer a esse tema até meados dos anos 1980. O conhecimento tem sido sinônimo de razão, o que também se opõe à ignorância como um fato epistêmico. Neste ar…
Use of Live Fences of Nopal (Opuntia) and Associated Crops to Rehabilitate and Protect Sloping Land in Loja, Ecuador
A live fences project in Ecuador sought to associate the idea of environmental recovery, characterized by an agro-ecological focus, with a perspective on social and economic development. Cultivation of the Opuntia cactus and the cochineal insect (Dactylopus coccus), environmentally and culturally adapted to the region, permitted the recovery of several degraded areas and generated income for rural dwellers, especially during periods of drought. A…
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Use of Live Fences of Nopal (Opuntia) and Associated Crops to Rehabilitate and Protect Sloping Land in Loja, Ecuador
A live fences project in Ecuador sought to associate the idea of environmental recovery, characterized by an agro-ecological focus, with a perspective on social and economic development. Cultivation of the Opuntia cactus and the cochineal insect (Dactylopus coccus), environmentally and culturally adapted to the region, permitted the recovery of several degraded areas and generated income for rural dwellers, especially during periods of drought. A…
Cecilia Payne’s Stellar Atmospheres at 100
Epistemologia da ignorância
Conhecimento é entendido como o oposto de ignorância. O mundo ocidental, desde os seus primórdios, luta por obter conhecimento e vencer a ignorância. Isso levou à ideia de que a ignorância não é um objeto do conhecimento e a epistemologia (bem como a Filosofia da Ciência) não devotou uma linha sequer a esse tema até meados dos anos 1980. O conhecimento tem sido sinônimo de razão, o que também se opõe à ignorância como um fato epistêmico. Neste ar…
The Misunderstood Comet
This paper commemorates the centenary of Cecilia Payne’s Stellar Atmospheres ... (1925), a doctoral thesis that fundamentally reshaped astrophysics by establishing hydrogen as the primary constituent of stars. Payne’s application of Meghnad Saha’s ionization theory to Harvard’s spectral data overturned the prevailing assumption that stars shared the Earth’s composition. Although Henry Norris Russell initially advised caution, regarding her conclu…
History and Developments in Astronomy (2 works) · Agroforestry (1 work) · Biology (1 work) · Botanical Research and Applications (1 work) · Cornerstone (1 work) · Desertification (1 work) · Ecology (1 work) · Environmental planning (1 work) · Environmental protection (1 work) · Environmental resource management (1 work)