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10721por Eady, Fred“…There are already over 50 million devices using the dominant IEEE 802.11 (essentially wireless Ethernet) standard, with astronomical growth predicted over the next 10 years. …”
Publicado 2005
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10722por Lorimer, D. R.“…As well as being interesting as a population of astronomical sources, many pulsars turn out to be superb celestial clocks. …”
Publicado 1998
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10723por Verschuur, Gerrit L“…Verschuur, a noted astronomer and National Book Award nom…”
Publicado 1993
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10724por De Rújula, Alvaro“…Here I present evidence, which the reader should judge, of such an apparent misconduct by Sir Martin Rees, the British Astronomer Royal, and others. Unethical behaviour is not unknown in science. …”
Publicado 2003
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10725por Joyce, Gerald F.“…All known examples of life belong to the same biology, but there is increasing enthusiasm among astronomers, astrobiologists, and synthetic biologists that other forms of life may soon be discovered or synthesized. …”
Publicado 2012
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10726“…Large-area holographic gratings are of great importance in diverse fields including long-range interference metrology, high-resolution astronomical telescopes, and chirped-pulse-amplification systems. …”
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10727“…The parameter space is restricted so that the {\tilde Z_{1}} relic density obeys 0.10 \leq\Omega_{\tilde Z_{1}}h^2\leq 0.35, consistent with the COBE data and astronomical determinations of the Hubble constant. It is found that the best detectors sensitive to coherrent {\tilde Z_{1}} scattering (e.g. …”
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10728por Bellazzini, R, Spandre, G, Minuti, M, Baldini, L, Brez, A, Cavalca, F, Latronico, L, Omodei, N, Massai, M M, Sgro, C, Costa, E, Krummenacher, P S F, De Oliveira, R“…Results from a full MonteCarlo simulation for two astronomical sources, the Crab Nebula and the Hercules X1, are also reported.…”
Publicado 2006
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10729por Goicoechea, Javier R., Pety, Jérôme, Cuadrado, Sara, Cernicharo, José, Chapillon, Edwige, Fuente, Asunción, Gerin, Maryvonne, Joblin, Christine, Marcelino, Nuria, Pilleri, Paolo“…Visible-light observations of the Bar1 show that the transition between the hot ionised gas and the warm neutral atomic gas (the ionisation front) is spatially well separated from the transition from atomic to molecular gas (the dissociation front): about 15 arcseconds or 6,200 astronomical units. (One astronomical unit is the Earth-Sun distance.) …”
Publicado 2016
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10730por Shapshak, Paul“…Titan), as well as on exoplanets, abiotic processes are considered the primary sources of methane. Astronomers and astro-biologists infer that the presence of methane supports the possibility of the presence of at least microbial life. …”
Publicado 2018
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10731por Winter, Andrew J., Kruijssen, J. M. Diederik, Longmore, Steven N., Chevance, Mélanie“…The median semi-major axis and orbital period of planets in phase space overdensities are 0.087 astronomical units and 9.6 days, respectively, compared to 0.81 astronomical units and 154 days, respectively, for planets around field stars. …”
Publicado 2020
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10732por Lightman, Alan“…Along the way, he provides in-depth portraits of some of the great geniuses of our time, including Albert Einstein, Richard Feynman, Edward Teller, and astronomer Vera Rubin. Thoughtful, beautifully written, and wonderfully original, A Sense of the Mysterious confirms Alan Lightman's unique position at the crossroads of science and art.…”
Publicado 2006
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10733“…The financial cost of cancer treatment in the United States is astronomically high and is expected to rise. The economic burden of cancer care increasingly falls on the patients. …”
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10734por Steele, Edward J.“…Chandra Wickramasinghe's “Astronomical Origins of life: Steps towards Panspermia.” …”
Publicado 2020
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10735
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10736por Calder, N“…This surprising mechanism explains the link between the Sun and climate change that astronomers and geophysicists have suspected for 200 years.…”
Publicado 1997
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10737“…Prompted by this momentous anniversary the Royal Astronomical Society decided to publish a volume of essays on the life, work and faith of this great cosmologist, who was also a Roman Catholic priest. …”
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10738“…Yet, in practice it is limited by the hyper-astronomic protein sequence search space, and approaches to identify mutagenic hot spots, i.e., locations where mutations are most likely to have a productive impact, are needed. …”
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10739“…From these parameters, we show how to define a rigorous astronomical absolute photometric system in which the sensor measurements can be reported in units of magnitudes per square arcsecond with precise physical meaning.…”
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10740“…Astroctyes, microglia, and oligodendrocytes of the central nervous system support neurons and their functions and are the main line of defense against pathogens such as bacteria and viruses. …”
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