Results 51 to 60 of about 9,187 (90)

Alta Hooker, galardonada en América Latina por la UNESCO

, 2017
Alta Hooker Blandford, Rectora de la URACCAN fue galardonada por su destacada labor en beneficio de la responsabilidad social, territorial y la interculturalidad, impulsada en America Latina.
Carlos Manuel Flores
semanticscholar   +1 more source

40 Years of Calculus in 4 + epsilon Dimensions [PDF]

arXiv, 2012
Modern physics describes elementary particles by a formalism known as Quantum Field Theory. However, straight calculations with this formalism lead to numerous divergences, hence one needs a suitable regularization scheme. 40 years ago a surprising scheme was established for this purpose: Dimensional Regularization.
arxiv  

Ciênsação: Gaining a feeling for sciences --- Ciensación: sentir la ciencia --- Ciênsação: despertando um sentimento por ciências [PDF]

arXiv, 2016
Ci\^ensa\c{c}\~ao, an open online repository for hands-on experiments, has been developed to convince teachers in Latin America that science is best experienced first hand. Permitting students to experiment autonomously in small groups can be a challenging endeavour for educators in these countries. We analyse the reasons that make teachers hesitate to
arxiv  

Science for Peace in the Benefit of Humankind. The Hippocratic Oath for Scientists concept [PDF]

Estudios y Documentos de Politica cientifica en America Latina y el Caribe, volume 2, pp.39-110, 2010, Montevideo: UNESCO, 2010
This article shows the importance that has had the scientific research, the technological development and the innovation processes in increasing the lethality of the available weapons during the last century. A set of initiatives promoted by the scientific community to stop the nuclear arms race that threatened the continuation of life on the planet is
arxiv  

Requisitos para um rádio digital interativo no Brasil e América Latina [PDF]

arXiv, 2021
This article discusses the feasibility and requirements for using Ginga as the middleware of a Digital Radio System. Ginga was adopted by Brazil and several other countries in Latin America as the standard for interactivity in Digital TV (ISDB-T International).
arxiv  

Efectos relativistas en los sistemas Galileo, GPS y GLONASS [PDF]

arXiv, 2004
Nowadays, the Global Navigation Satellite Systems (GNSS), working like global positioning systems, are the GPS (NAVSTAR) and the GLONASS, which only are operative when several relativistic effects are corrected. In the next years the Galileo system will be constructed, copying the GPS System if there is no an alternative project.
arxiv  

ISO observations toward the reflection nebula NGC 7023: A nonequilibrium ortho- to para-H2 ratio [PDF]

, 1999
We have observed the S(0), S(1), S(2), S(3), S(4) and S(5) rotational lines of molecular hydrogen (H2) towards the peak of the photodissociation region (PDR) associated with the reflection nebula NGC 7023. The observed H2 line ratios show that they arise in warm gas with kinetic temperatures ~300 - 700 K. However, the data cannot be fitted by an ortho-
arxiv   +1 more source

Variaciones geomagneticas diarias debido al efecto lunar: estudio basado en datos del observatorio geomagnetico de Huancayo [PDF]

Revista Geofisica 64, Enero 2012-Diciembre 2014, Instituto Panamericano de Geografia e Historia IPGH, ISSN 0252-9769, 2015
The Moon apparently seems to have not appreciable effect in the geomagnetic monthly period, but Keil (1839), Sabine (1853), Broun (1874) and many others have shown a lunisolar daily variation. It is known that solar (S) and lunar (L) variation have seasonal variations.
arxiv  

Beam Dynamics Studies for the CLIC Main Linac [PDF]

arXiv, 2012
The implications of long-range wakefields on the beam quality are investigated through a detailed beam dynamics study. Injection offsets are considered and the resulting emittance dilution recorded, including systematic sources of error. These simulations have been conducted for damped and detuned structures (DDS) and for waveguide damped structures ...
arxiv  

The Population Synthesis Toolkit (PST) Python library [PDF]

arXiv
Stellar population synthesis is a crucial methodology in astrophysics, enabling the interpretation of the integrated light of galaxies and stellar clusters. By combining empirical and/or theoretical libraries of the spectral energy distribution emitted by simple stellar populations (SSPs) with models of the star formation history (SFH) and chemical ...
arxiv