Results 91 to 100 of about 1,181,919 (193)

Short-Distance Cutoffs in Curved Space

open access: yes, 2004
It is shown that space-time may possess the differentiability properties of manifolds as well as the ultraviolet finiteness properties of lattices. Namely, if a field's amplitudes are given on any sufficiently dense set of discrete points this could ...
Kempf, Achim
core   +2 more sources

Persistence and mean reversion: analyzing sector indices for Brazil

open access: yesEconomia Aplicada, 2006
Este artigo contribui para a literatura de testes da hipótese de passeio aleatório examinando um novo conjunto de dados setoriais de ações para o mercado Brasileiro e empregando um teste de razão de variâncias com percentis customizados.
Benjamin Miranda Tabak   +1 more
doaj  

Organizações e reivindicações indígenas no Brasil central

open access: yesLes Cahiers ALHIM, 2019
The present work is located in the Center-West region of Brazil and seeks to discuss the reality of the Guarani people and their effective participation in indigenous organizations created since the 1980s and pushed with the approval of the new Federal Constitution (1988).
Antonio H.  Aguilera  Urquiza   +2 more
openaire   +1 more source

The revolution will be tweeted : how the internet can stimulate the public exercise of freedoms [PDF]

open access: yes, 2012
This article discusses how new technologies of communication, especially the Internet and, more specifically, social network services, can interfere in social interactions and in political relations.
Andrade Neto, João   +1 more
core  

The nature of the LINER in the galaxy NGC 404

open access: yes, 2010
NGC 404, at a distance of 3.4 Mpc, is the nearest S0 galaxy. This galaxy harbors a LINER; however, since the spectrum does not show a broad H{\alpha} emission, it is not certain that this LINER is a low luminosity AGN and its nature is still an open ...
Menezes, Roberto B.   +3 more
core   +1 more source

LINFOMA ÓSSEO PRIMÁRIO: RELATO DE CASO

open access: yesHematology, Transfusion and Cell Therapy, 2020
H.C. Fonseca   +5 more
doaj   +1 more source

A checklist of the bryophytes of Distrito Federal (Brasília, Brazil) [PDF]

open access: yes, 2005
The Distrito Federal, one of the most important centers of plant endemism in central Brazil, is located in the center of Brazil, with an area of 5,814 km2 at coordinates 15o30’ S, 16o03’W. Cerrado vegetation covers the region.
Câmara, Paulo Eduardo Aguiar Saraiva   +2 more
core  

PÚRPURA TROMBOCITOPÊNICA IMUNE CRÔNICA EM ADULTO ASSOCIADO A DEFICIÊNCIA POR VITAMINA B12: RELATO DE CASO

open access: yesHematology, Transfusion and Cell Therapy, 2020
G.D. Cavalcanti   +5 more
doaj   +1 more source

Central do Brasil: Risky “Sport”

open access: yes, 2019
The article explores practices developed by the passengers of “Central do Brasil” railway station, who used to travel hanging on to the outside of the trains and even on their roofs. The focus of the study is on the span between the fifties and eighties of the last century.
openaire   +1 more source

PANCITOPENIA COMO QUADRO CLÍNICO DA LEUCEMIA MIELOIDE AGUDA: RELATO DE CASO

open access: yesHematology, Transfusion and Cell Therapy, 2020
G.D. Cavalcanti   +5 more
doaj   +1 more source

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