ACE research vignette 006 : why saving jobs and supporting failing firms can be detrimental

This series of research vignettes is aimed at sharing current and interesting research findings from our team and other international Entrepreneurship researchers. In this vignette, we summarise the findings from a paper written by Avaid Pe'er and Ilan Vertinsky that examines "Why saving jobs and supporting failing firms can be detrimental".

Diário da Constituinte [gravação de vídeo] : [programa n. 006]

Os presidentes e relatores de comissões e subcomissões decidiram não prorrogar os prazos para a elaboração da Constituinte. O deputado Hermes Zaneti (PMDB-RS) propõe que as subcomissões funcionem pela manhã, sendo interrompidas à tarde no horário das reuniões plenárias, e retomando às 17h. O deputado José Serra (PMDB-SP) apoia a ideia do funcionamento das subcomissões. A sessão plenária presidida pelo Deputado Ulysses Guimarães (PMDB-SP) coloca em pauta a negociação da dívida externa. Na tribuna, imagens dos deputados Maurílio Ferreira Lima (PMDB-PE), Fernando Santana (PCB-BA), Davi Alves Silva (PDS-MA) e Sarney Filho (PFL-MA). O Comitê Pró-Diretas para o Distrito Federal, formado por presidentes dos 22 partidos políticos, recebe o apoio do deputado Jofran Frejat (PFL-DF), presidente da Subcomissão da União, Distrito Federal e Territórios da Assembleia Nacional Constituinte (ANC). O representante do Comitê Pró-Diretas, um dos 22 presidentes de partido, esclarece sobre o apoio do presidente da Subcomissão. Jofran Frejat(PFL-DF) reafirma a importância desta representação política no Distrito Federal.

Massive stars exploding in a He-rich circumstellar medium - V. Observations of the slow-evolving SN Ibn OGLE-2012-SN-006

We present optical observations of the peculiar Type Ibn supernova (SN Ibn) OGLE-2012-SN-006, discovered and monitored by the Optical Gravitational Lensing Experiment-IV survey, and spectroscopically followed by Public ESO Spectroscopic Survey of Transient Objects (PESSTO) at late phases. Stringent pre-discovery limits constrain the explosion epoch with fair precision to JD = 245 6203.8 +/- 4.0. The rise time to the I-band light-curve maximum is about two weeks. The object reaches the peak absolute magnitude M-I = -19.65 +/- 0.19 on JD = 245 6218.1 +/- 1.8. After maximum, the light curve declines for about 25 d with a rate of 4 mag (100 d)(-1). The symmetric I-band peak resembles that of canonical Type Ib/c supernovae (SNe), whereas SNe Ibn usually exhibit asymmetric and narrower early-time light curves. Since 25 d past maximum, the light curve flattens with a decline rate slower than that of the Co-56-Fe-56 decay, although at very late phases it steepens to approach that rate. However, other observables suggest that the match with the Co-56 decay rate is a mere coincidence, and the radioactive decay is not the main mechanism powering the light curve of OGLE-2012-SN-006. An early-time spectrum is dominated by a blue continuum, with only a marginal evidence for the presence of He I lines marking this SN type. This spectrum shows broad absorptions bluewards than 5000 angstrom, likely O II lines, which are similar to spectral features observed in superluminous SNe at early epochs. The object has been spectroscopically monitored by PESSTO from 90 to 180 d after peak, and these spectra show the typical features observed in a number of SN 2006jc-like events, including a blue spectral energy distribution and prominent and narrow (v(FWHM) approximate to 1900 km s(-1)) He I emission lines. This suggests that the ejecta are interacting with He-rich circumstellar material. The detection of broad (10(4) km s(-1)) O I and Ca II features likely produced in the SN ejecta (including the [OI] lambda lambda 6300,6364 doublet in the latest spectra) lends support to the interpretation of OGLE-2012-SN-006 as a core-collapse event.