The Compton Spectrometer and Imager (COSI) is a balloon-borne compact telescope designed to survey the 0.2-5 MeV sky. COSI's energy resolution of $\sim$0.2% at 1.8 MeV, single-photon reconstruction, wide field view make it capable studying astrophysical nuclear lines, particularly 1809 keV $\gamma$-ray line from decaying Galactic $^{26}$Al. Most $^{26}$Al originates in massive stars core-collap...

The present study has been carried out to understand the effect of electronic correlations on recently found fermions in CoSi. For which spectral functions bulk and (001) surface CoSi have investigated using DFT + DMFT advanced methodology at T = 100 K with without inclusion spin–orbit coupling (SOC). Co $${d_{xz}}$$ $${d_{yz}}$$ $$d_{z^2}$$ bands seem contribute threefold degenerate $$\Gamma $...

Trans [1] is a Lisp system at the Space Telescope Science Institute (STScI) which is a key part of the proposal preparation ground system for the Hubble Space Telescope (HST). It was originally developed in the late ‘80s using a mixture of procedural, and blackboard architectures. While the original application met its requirements and performed well for a number of years, the increasing comple...

We show that there is p 0 > 0 and p 1 ; : : :; p N non-negative integers, such that 0 p(x) = p 0 + p 1 cos x + + p N cos Nx and p 0 s 1=3 for s = P N j=0 p j , improving on a result of Odlyzko who showed the existence of such a polynomial p that satisses p 0 (s log s) 1=3. Our result implies an improvement of the best known estimate for a problem of Erdd os and Szekeres. As our method is non-co...

A metastable phase of FeSi 2 that is not present in the bulk phase diagram can be grown epitaxially on Si(111). Scanning tunneling microscope images reveal the surface reconstruction of this phase and allows one to model its crystallographic structure. It crystallizes with a cubic structure, probably a fluorite structure like CoSi 2 and NiSi2, lattice-matched to Si. The (111) surface has a 2 × ...

The occupied and unoccupied electronic structure of thin epitaxial CoSi(2) films grown on Si(111) substrates was studied using time-resolved two-photon photoemission and valence-band photoemission spectroscopy. The work function of the sample surfaces and the Schottky barrier height at the metal-semiconductor interface were measured as a function of annealing temperature. The photoemission data...

Introdução: Associação entre adaptação de próteses auditivas e treinamento auditivo pode melhorar a comunicação do indivíduo reduzir os déficits funcionais. Objetivo: verificar o benefício na qualidade vida, sintomas depressivos, aspectos cognitivos, resolução temporal limitação em atividades vida idosos com perda auditiva, após associadas ou não ao musical. Métodos: Grupo Experimental - GE: ci...