[PDF] Top 20 Tecnologias da informação e comunicação no ensino de matemática : uma abordagem na prática docente

... LW03 discuss some of the difficulties with using an empirical SSF. For ground-based data a spectrum of a bright standard star is ideal, but this must be taken in identical conditions to those of the SN spectrum. In ... See full document

... the Universe and serve as the most important probes for its ...the distant Universe, massive stars dominate the integrated UV-light of very young galaxies (Steidel et ...the Universe (Bromm et ... See full document

... the optical and ultra-violet regions of the spectrum and are still embedded in molecular ...the local galaxy luminosity function in the optical and infrared bands, and is consistent with the very ... See full document

... In this thesis, I extend the pioneering works done in [22] and [23] by studying the complete set of coupled nonlinear magnetohydrodynamical differential equation for the purpose to describe the evolution and damping of ... See full document

... the Universe was roughly 380 000 years 2 old and due to its expansion had cooled down suf- ficiently ( ∼ 3000 K) to allow the formation of neutral ...visible Universe and hardly undergone any interactions ... See full document

... Therefore the transfer process may fake laser–induced events since they have the same signature: x-rays signals of low energy (including 2 keV) at delayed time (time necessary to reach t[r] ... See full document

... there have been attempts to observe these molecules at high redshifts (de Bernardis et al. 1993). Varshalovich, Khersonskii and Sunyaev (1978) were trying to estimate the spectral distortions of CMB due to absorption in ... See full document

... In the local universe, galaxies are only a minor ∼ 7% reservoir of the total baryons in the universe ([155, 405]). The rest ∼ 90% of baryons resides in the space between galaxies in the form of the ... See full document

... a local Courant criterion for the photons, which can become very small due to the high speed of ...the local geometry of the mesh around the point ... See full document

... We will introduce the mathematical theory of G -structures to solve the Killing spinor equation for a fixed number of parallel internal spinors.... Moreover, the internal space is suppose[r] ... See full document

... In recent years there has been increasing evidence that the stratosphere plays an ac- tive role in the tropospheric circulations (e.g. Haynes, 2005), and that stratospheric cli- mate variations may directly affect ... See full document

... an optical insulator (OI) is deflected at a single–sided AR coated plate (AR) and guided into the fiber input of the wavemeter (WM), Model Highfinesse WS/7 with an absolute accuracy of 100 MHz and a relative ... See full document

... of optical follow-up observations (see below), each such stripe is divided into two 2×2 mosaics of single IR frames, denoted f1–f4 and ...the optical imager we used (CAFOS, having a diameter of roughly 16 ... See full document

... Concluding the study of the γ -hadron separation, we want to compare the neural net- works with the random forests in a special way which also allows insights into the relation between M[r] ... See full document

... In Abschnitt 6.1.1 werden die besonderen mechanischen Eigenschaften der Superhelix-Struktur von Hasen-Myosin II vorgestellt. Erstmals konnte in der Veröffentlichung „The myosin coiled-coil is a truly elastic protein ... See full document

... [r] ... See full document

... Galactic non-equilibrium processes like shock waves and turbulence have generated magnetic fields and cosmic rays (CRs) in the interstellar medium. Cosmic rays play a decisive role within our Galaxy: their pressure, ... See full document

... Laser-Impulse. Für die Quotientenbildung muss der Abfrage-Impuls in zwei identische Teil-Impulse aufgespal- ten ...Die für die Messung des Zeit- verhaltens der Absorptionsänderung notwendige Variation der ... See full document

... ΛCDM universe it is necessary to carry out ...and supernovae produce winds which redistribute energy, mass and heavy elements over large regions (Heckman et ... See full document

... Ziel dieser Arbeit ist es, mit Hilfe neuer Methoden zur Berechnung synthe- tischer Spektren die in den Beobachtungen enthaltenen Informationen zu ex- trahieren und zu analysieren. Den entscheidenden methodischen Schritt ... See full document