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Amaldi meeting introduction
No full textWelcome to Caltech and the 3rd Edoardo Amaldi Conference on Gravitational Waves.
Obviously, something must be very interesting to bring more than 250 scientists from
around the world to Pasadena in July for this particular meeting. In fact, July in
Southern California does have many attractions, in addition to the good weather and
cool nights. For this conference, we have arranged a visit to the new Getty Museum on
our excursion day. This is meant to make your stay more pleasant, but is not the real
reason we have gathered here. This meeting addresses the detection of gravitational
waves, a much-anticipated event
Colloquium in honour of professor Edoardo Amaldi on the occasion of his 80th birthbay - 1988
No full textHommage à Amaldi par plusieurs orateur
Science and society-M.Curie/N.Bohr
No full textUgo Amaldi introduit le conférencier du soir, Pierre Radvanyi; le thème de cette conférence est: Marie Curie, Niels Bohr and Science Society- Problems of their tim
Edoardo Amaldi and Victor Weisskopf
No full textE. Amaldi (foreground) and V. Weisskopf in a discussion, 197
Optimizing base station location and configuration in UMTS networks
No full textRadio planning and coverage optimization are critical issues when deploying and expanding third generation cellular systems. We investigate mixed integer programming models for locating and configuring base stations in UMTS networks so as to maximize cov- erage and minimize installation costs. The overall model considers both uplink and downlink directions, that we studied separately in Amaldi et al. (2002, 2003b). The two-stage Tabu Search algorithm we propose exploits solutions of a simplified model for the uplink direction to drastically reduce the computational time required to find good approximate solutions of the overall uplink and downlink model. Computational results obtained for realistic instances are reported and discussed
On 23 March ESA’s third Automated Transfer Vehicle (ATV), named in honour of Amaldi, was launched on board an Ariane rocket.
No full textLive webcast from CERN on the occasion of the launch of a "Space Ferry", named after Edoardo Amaldi, by the European Space Agency (ESA). Amaldi was CERN's first Secretary General and founding father, and a visionary pioneer for ESA. With the participation of Ugo Amaldi, CERN physicist and son of Edoardo Amaldi, Carlo Rubbia, Nobel Laureate in Physics and Former Director General of CERN and Arturo Russo, historian and author with John Kriege of CERN and ESA's Histor
Edoardo Amaldi and Victor Weisskopf
No full textEdoardo Amaldi and Victor Weisskopf in a discussion, 197
Translational regulation of the expression of ribosomal protein genes in Xenopus laevis
No full textThe mRNAs coding for ribosomal proteins (rp-mRNA) are subjected to translational control during Xenopus oogenesis and embryogenesis, and also during nutritional changes in Xenopus cultured cells. This regulation, which appears to respond to the cellular need for new ribosomes, operates by changing the fraction of rp-mRNA engaged on polysomes, each translated rp-mRNA molecule always remaining fully loaded with ribosomes. All rp-mRNAs analyzed up to now show this translational behavior, and also share some structural features in their untranslated portions. In particular they all have rather short 5' untranslated regions, similar to each other, and always start at the very 5' end with a stretch of several pyrimidines. Fusion to a reporter-coding sequence of the 5' untranslated region of r-protein S19 has shown that this is involved in the translational regulation
Aspects of regulation of ribosomal protein synthesis in Xenopus laevis - Review
No full textThe work carried out in the authors' laboratories on the structure and expression of ribosomal protein genes in Xenopus is reviewed, with some comparisons with other systems. These genes form a class that shares several structural features, especially in the region surrounding the 5′ ends. These similar structures appear to be involved in coregulated expression that is attained at various regulatory levels: transcriptional, transcript processing and stability, and translational. Particular attention is paid here to the one operating at the translational level, which has been studied during Xenopus oogenesis and embryogenesis, and also during nutritional changes of Xenopus cultured cells. This regulation, which responds to the cellular need for new ribosomes, operates by changing the fraction of rp-mRNA engaged on polysomes, leaving each translated rp-mRNA molecule always fully loaded with ribosomes. Responsible for this translational behaviour is the typical 5′UTR, which characterizes all rp-mRNAs analyzed up to now, and that can bind in vitro some proteins, putative trans-acting factors for this translational regulation. © 1994 Kluwer Academic Publishers
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