scholarly journals Entrevista com o físico Marcelo Gleiser

Author(s):  
Stela Guedes Caputo
Keyword(s):  

O governo do presidente brasileiro Jair Bolsonaro aprofunda cada vez mais o desprezo pelo conhecimento que já manifestava desde a campanha eleitoral. Em plena pandemia da Covid-19, enquanto o mundo aposta nas pesquisas científicas, na esperança da descoberta de vacinas (o que já aconteceu), Bolsonaro intensifica sua cruzada contra as universidades e a ciência, rejeitando dados analisados com métodos e protocolos, ignorando pesquisas e orientações médicas mundiais, ou seja, sendo negacionista. Interesses financeiros de grandes grupos econômicos, obscurantismo religioso, imensa desigualdade social, um profundo descaso pela vida e o negacionismo, já mencionado, são algumas características do bolsonarismo que faz o Brasil agonizar nesse momento. Para conversar sobre esse ataque à ciência e aos cientistas, entrevistamos o físico e astrônomo brasileiro, Marcelo Gleiser, professor titular de filosofia natural e de física e astronomia na Dartmouth College, em Hanover, Estados Unidos, vencedor do Prêmio Templeton, de 2019. Na entrevista, Gleiser fala sobre  a importância do diálogo entre fé e ciência; sobre o papel das associações de pesquisas nesse momento; sustenta que o modelo cultural científico precisa mudar e se tornar menos eurocêntrico e mais pluralista;  diz que o Brasil vive uma tragédia provocada pelo obscurantismo religioso e afirma que as novas gerações vão rir muito da nossa, em que muita gente ainda acredita que a Terra é plana.

1983 ◽  
Vol 38 ◽  
pp. 2-3
Author(s):  
Jon A. Christopherson ◽  
Phillip J. Heyl

By introducing data analysis techniques, analyzing current research in voting behavior, and using the computer for social science research, introductory American Government courses on the undergraduate level are undertaking ambitious goals. Using the SETUPS units for each presidential election since 1972, cadets at the Coast Guard Academy have engaged in a comprehensive approach to the study of American electoral behavior in an interactive data analysis mode. Although SETUPS modules are run at most colleges and universities in batch mode, there are imitations and drawbacks to batch mode. The Coast Guard Academy is able to utilize interactive data analysis as a result of its time-sharing arrangement with the Dartmouth College Time Sharing System (DCTS). In this article we will discuss the use of SETUPS in an interactive mode using the CIDAR interactive data analysis system.


1983 ◽  
Vol 1 (1) ◽  
pp. 55-58
Author(s):  
Emily Fayen
Keyword(s):  

2014 ◽  
Vol 120 (4) ◽  
pp. 919-922 ◽  
Author(s):  
Steven Rowson ◽  
Stefan M. Duma ◽  
Richard M. Greenwald ◽  
Jonathan G. Beckwith ◽  
Jeffrey J. Chu ◽  
...  

Of all sports, football accounts for the highest incidence of concussion in the US due to the large number of athletes participating and the nature of the sport. While there is general agreement that concussion incidence can be reduced through rule changes and teaching proper tackling technique, there remains debate as to whether helmet design may also reduce the incidence of concussion. A retrospective analysis was performed of head impact data collected from 1833 collegiate football players who were instrumented with helmet-mounted accelerometer arrays for games and practices. Data were collected between 2005 and 2010 from 8 collegiate football teams: Virginia Tech, University of North Carolina, University of Oklahoma, Dartmouth College, Brown University, University of Minnesota, Indiana University, and University of Illinois. Concussion rates were compared between players wearing Riddell VSR4 and Riddell Revolution helmets while controlling for the head impact exposure of each player. A total of 1,281,444 head impacts were recorded, from which 64 concussions were diagnosed. The relative risk of sustaining a concussion in a Revolution helmet compared with a VSR4 helmet was 46.1% (95% CI 28.1%–75.8%). When controlling for each player's exposure to head impact, a significant difference was found between concussion rates for players in VSR4 and Revolution helmets (χ2 = 4.68, p = 0.0305). This study illustrates that differences in the ability to reduce concussion risk exist between helmet models in football. Although helmet design may never prevent all concussions from occurring in football, evidence illustrates that it can reduce the incidence of this injury.


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