The OH 1667 MHz maser in the circumstellar shell around the Mira variable U Her has been observed with the NRAO Very Long Baseline Array (VLBA) at 6 epochs, spread over 4 years. Using phase referencing techniques the position of the most blue-shifted maser spot was monitored with respect to two extra-galactic radio sources. The absolute radio positions of the maser can be compared with the stel...

The quest for detecting dark-matter subhalos within the Galactic halo has taken many forms. Particularly interesting and promising is use of spectral degeneracies to distinguish otherwise indistinguishable gamma-ray sources with near-null star formation. In further exploration this realm, we attempt classify high-latitude, non-variable, unassociated Pulsar-like spectra in 20-70 GeV Dark Matter ...

Résumé On sait peu de choses sur l’utilisation, correcte ou incorrecte, des produits nettoyage pendant la pandémie COVID-19. Nous avons compilé données provenant centres antipoison canadiens pour janvier à juin 2019 et 2020 nous rendons compte ici appels relatifs certains l’évolution en pourcentages entre ces deux périodes. Il y a eu 3 408 (42 %) portant agents blanchiment,...

lThis waspetforn 'd, Novemb. 23, 1667, upon on Mr Arthur Coga, at Arundelhouse, in the presence of many considerable and intelligent persons by the management of those two Learned Physicians and dextrouis Anatomists, Dr Richard Lower, andDr Edmund King, the latter of whom communicated the Relation of it, as followeth. The Experiment of Transfusion of Blood into an human Vein was made by Us in t...