منابع مشابه
PREHISTORIC PORTO RICAN PICTOGRAPHS By J. WALTER FEWKES
Not the least significant of the many survivals of a prehistoric race in the West Indies are rude pictures cut in rocks and called pictographs or petroglyphs.' A study of their forms, geographical distribution, and meaning is an important aid to our knowledge of the origin and development of Antillean culture; it affords valuable data bearing on the migration of the race and points the way back...
متن کاملEnvironmental education in the Upper Paraná River floodplain, municipality of Porto Rico (Paraná State), Brazil.
Since 2003, researchers, faculty, graduate and undergraduate students from the State University of Maringá have been working alongside teachers from the state and local schools in the municipality of Porto Rico (Paraná State), located on the banks of the Paraná River. Their objective is to outline actions and strategies with the purpose of building methodological paths to insert environmental e...
متن کاملFishing Down a Prehistoric Caribbean Marine Food Web: Isotopic Evidence From Punta Candelero, Puerto Rico
In recent years, a debate about the degree to which prehistoric fishing practices may, or may not, have adversely impacted local fish communities has re-emerged in the Caribbean archaeological and fisheries literature. Through carbon and nitrogen stable isotope analyses of radiocarbon dated human skeletal remains from southeastern Puerto Rico, the present work identifies a significant (one to t...
متن کاملArboreous Vegetation of an Alluvial Riparian Forest and Their Soil Relations: Porto Rico Island, Paraná River, Brazil
The dynamics of alluvial deposits in floodplains forms islands and sandbanks. Deposits frequently accumulate at the river margins and on islands with consequent side growths. One of these sandbanks which started to form in 1952 annexed an area of 12.4ha to the Porto Rico island (5315’W and 2245’S). At present a forest fragment of approximately 2.0 ha exists in this place. The structural analysi...
متن کاملPorto Alegre
1. Sesso R, Anção MS, Madeira SA. Aspectos epidemiológico do tratamento dialı́tico na grande São Paulo. Revista da Associação Médica do Brasil 1994; 40: 10–14 2. Gabow P. Autosomal dominant polycystic kidney disease. N Engl J Med 1993; 329: 332–342 3. Dalgaard OZ, Søren N. Autosomal dominant polycystic kidney disease in the 1980s. Clin Genet 1989; 36: 320–325 4. Higashira E, Nutahara K, Kojima M...
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ژورنال
عنوان ژورنال: Science
سال: 1902
ISSN: 0036-8075,1095-9203
DOI: 10.1126/science.16.394.94