São Paulo cavern-shaft collapse viewed as a trap-door problem.
نویسندگان
چکیده
منابع مشابه
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The carcinoid tumor is a relatively rare type of endocrine tumor, which arises mainly in the gastrointestinal tract. Primary gallbladder and biliary duct system carcinoids comprise less than 1% of all carcinoid tumors arising from any tissue or organ in the body. We describe a case of carcinoid tumor of the gallbladder in a 39-year-old man. There have been only 32 cases described in the literat...
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In this paper, we ask “Can proximity to towns reduces poverty in rural areas?” For this study we have mapped all the villages in Orissa. The study is based on small area poverty estimation methodology as well as the secondary data covering 47,395 villages and 109 towns. Our main findings are (i) there is a relationship between the distance to nearest town and rural poverty and (ii) poverty leve...
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The modern study of perception began when Fechner published his 'Elements of Psychophysics' in 1860. This book has guided most perception research ever since. It has become increasingly clear that there are problems with Fechner's approach, which assumes that the percept is completely determined by the sensory input. Fechner's approach cannot explain the processes that allow our percepts to be ...
متن کاملTrap-nesting bees (Hymenoptera: Apoidea) in forest fragments of the State of São Paulo, Brazil.
We studied the community ecology of trap-nesting bees in two forest fragments of the state of São Paulo, Brazil, during two years, utilizing bamboo canes and tubes made of black cardboard as trap nests. The traps were inspected once a month with an otoscope. One hundred and fifteen nests were obtained at Estação Ecológica de Paulo de Faria, Paulo de Faria (EEPF). These included nine species bel...
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ژورنال
عنوان ژورنال: Bulletin of the Geological Society of Greece
سال: 2013
ISSN: 2529-1718,0438-9557
DOI: 10.12681/bgsg.11066