Neurochirurgie minim invazivă
"Primum non nocere" este ideea ce a deschis drumul medicinei spre minim invaziv. Avansul tehnologic extraordinar din ultimele decenii a permis dezvoltarea tuturor domeniilor medicinei. Microscopul operator, neuronavigația, tehnicile anestezice avansate permit intervenții chirurgicale tot mai precise, tot mai sigure. Neurochirurgia minim invazivă, sau prin "gaura cheii", oferă pacienților posibilitatea de a se opera cu riscuri minime, fie ele neurologice, infecțioase, medicale sau estetice. www.neurohope.ro |
Ancient astronaut theories
Last Updated: Apr 07 2008 16:03, Started by
vercety_ro
, Apr 07 2008 16:03
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#1
Posted 07 April 2008 - 16:03
Quote Ancient astronaut theories are various proposals that the Earth had, before first human record, been visited by intelligent extraterrestrial beings, and that such contact is linked to either the origins or development of human cultures, technologies and/or religions. Indeed, some of these theories suggests that gods from most -- if not all -- religions are actually extraterrestrial beings, and their technologies were mistaken for divine entities by primitive man.[1][2] While no peer-reviewed scientific journal validates such claims, these theories have been popularized, particularly in the latter half of the 20th century, by writers Erich von Däniken, Zecharia Sitchin and others.[3] Ancient astronaut theories also may include the idea that civilization may have evolved on earth twice, and that the visitation of ancient astronauts may reflect the return of descendants of ancient humans whose population was separated from earthbound humans[citation needed]. Proponents of ancient astronaut theories point to what they perceive as gaps in historical and archaeological records and also what they see as an absence of definitive explanations in certain contexts from the archaeological sciences. Advocates of these theories put forward as evidence their interpretations of various archaeological artifacts, which they deem to have been anachronistic or beyond the presumed technical capabilities of the historical cultures they are associated with (see "OOPArt"). Another common theme relies upon the interpretation of depictions in certain ancient artworks as being representations of actual extraterrestrial visitors as realised by the contacted cultures. Critics maintain, however, that any gaps in contemporary knowledge of the past do not demonstrate that such speculative ideas are a necessary, or even plausible, conclusion to draw from the available data. A number of ancient astronaut claims are made in direct opposition to the consensus scientific interpretation of evidence and to legitimate scientific explanations. The scientific community remains generally skeptical, and the dominant view is that there is no actual evidence to support ancient astronaut and paleocontact theories.[4] Ancient astronaut theories may be considered a subset of paleocontact theory, a hypothesis that intelligent extraterrestrials have visited Earth. Carl Sagan, I.S. Shklovskii and Hermann Oberth are three notable scientists who have seriously considered this possibility. Mai multe detalii aici Edited by m3th0dman, 02 September 2010 - 19:04. |
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