Cluster Cepheids with High Precision Gaia Parallaxes, Low Zeropoint Uncertainties, and Hubble Space Telescope Photometry

We present HST photometry of 17 Cepheids in open clusters and their mean parallaxes from Gaia EDR3. These parallaxes are more precise than those from individual Cepheids (G<8 mag) previously used to measure the Hubble constant because they are derived from an average of >300 stars per cluster. Cluster parallaxes also have smaller systematic uncertainty because their stars lie in the range (G>13 mag) where the Gaia parallax calibration is most comprehensive. Cepheid photometry employed in the period--luminosity relation was measured using the same instrument(WFC3) and filters(F555W,F814W,F160W) as extragalactic Cepheids in SNIa hosts. We find no evidence of residual parallax offset in this magnitude range, zp=-3+/-4 muas, consistent with Lindegren:2021b and most studies. The Cepheid luminosity (P=10d, solar-metallicity) in the HST near-infrared, Wesenheit system derived from the cluster sample is M_{H,1}^W=-5.902+/-0.025 and -5.890+/-0.018 mag with or without simultaneous determination of a parallax offset, respectively. These results are similar to measurements from field Cepheids, confirming the accuracy of the Gaia parallaxes over a broad range of magnitudes. The SH0ES distance ladder calibrated solely from this sample gives H_0=72.8+/-1.3 and H_0=73.2+/-1.1 km/s/Mpc with or without offset marginalization; combined with all anchors we find H_0=73.01+/-0.99 and 73.15+/-0.97, respectively, a 5% or 7% reduction in the uncertainty and a 5.3 sigma Hubble Tension relative to Planck+LambdaCDM. It appears increasingly difficult to reconcile two of the best measured cosmic scales, parallaxes from Gaia and the angular size of the acoustic scale of the CMB, using the simplest form of LambdaCDM to join the two.Comment: 12 pages, submitted to ApJ, comments welcom

[Argentina] Decreto 577/2017 y Decreto 480 /2019 – Creación y Modificación del Comité de Ciberseguridad

Presidential Decree for the Creation and Modification of the Cybersecurity Committe

[Argentina] Memorandum of Understanding, Spain-Argentina

Cooperation in cyber security between Argentina and Spai

[Argentina] Comité de Ciberseguridad

That by Decree N ° 577/17 the CIBERSEGURITY COMMITTEE was created in the orbit of the then MINISTRY OF MODERNIZATION, made up of representatives of the aforementioned Ministry, of the MINISTRY OF DEFENSE and the MINISTRY OF SECURITY, whose objective is to prepare the National Cybersecurity Strategy. That by Decree N ° 801/18 various Ministries were merged in order to centralize the powers in a smaller number of Jurisdictions and article 8 of Title II of the Ministries Law ( text ordered by Decree was replaced N ° 438/92 ) and its amendments, establishing that each Ministry may propose to the NATIONAL EXECUTIVE POWER the creation, among others, of the Government Secretariats, whose functions will be determined by decree. That in this context, Decree N ° 802/18 created, among others, the position of Secretary of Government for Modernization, to which the powers of the then MINISTRY OF MODERNIZATION were assigned

INTEGRATION OF A SMALL VACUUM FACILITY

This project involves the integration of a bell-jar vacuum chamber with a microflow delivery system. A structure to support the bell-jar and associated equipment is designed for a 405kg maximum load. A hoist mechanism is designed to allow lifting of the 114kg bell-jar cover. The design and structural analysis of these systems are performed using software. This project provides also analysis and estimates of the mass flow that will be delivered into the bell-jar using a pressure-decay microflow system

27 testimonios del 27 de octubre de 2010 : Reflexiones ante el fallecimiento del ex presidente Néstor Kirchner

Referentes políticos del oficialismo y la oposición, presidentes de países latinoamericanos, gobernadores, legisladores, dirigentes sindicales y sociales, autoridades de la UNLP reflexionan ante el fallecimiento del expresidente Néstor Kirchner, en el mismo día del hecho, 27 de octubre de 2010.Testimonios recogidos por el Departamento Informativo de Radio Universidad Nacional de La PlataRadio Universidad Nacional de La Plat

27 testimonios del 27 de octubre de 2010 : Reflexiones ante el fallecimiento del ex presidente Néstor Kirchner

Referentes políticos del oficialismo y la oposición, presidentes de países latinoamericanos, gobernadores, legisladores, dirigentes sindicales y sociales, autoridades de la UNLP reflexionan ante el fallecimiento del expresidente Néstor Kirchner, en el mismo día del hecho, 27 de octubre de 2010.Testimonios recogidos por el Departamento Informativo de Radio Universidad Nacional de La PlataRadio Universidad Nacional de La Plat