Sistema de apoio à informação para o desenvolvimento de recursos humanos regionais

In this paper we suggest a concept of information support system for human resource management at a regional level. We identify the main factors that affect quantitative and qualitative characteristics of regional human resource, including educational system, demographic and migration processes, and present a concept of the Program for its development. As a tool for information support of the Program we propose a distributed information system with interfaces for various groups of users: regional administration, population and organizations. To assess the effectiveness of the activities of the Program we suggest a decision support system based on the agent model of regional human resource dynamics. The model reflects demographical situation in the region, migration flows, educational system, economy and social environment in the region and functions of the regional administration.En este documento, sugerimos un concepto de sistema de soporte de información para la gestión de recursos humanos a nivel regional. Identificamos los principales factores que afectan las características cuantitativas y cualitativas del recurso humano regional, incluidos el sistema educativo, los procesos demográficos y de migración, y presentamos un concepto del Programa para su desarrollo. Como herramienta para el soporte de información del Programa, proponemos un sistema de información distribuido con interfaces para varios grupos de usuarios: administración regional, población y organizaciones. Para evaluar la efectividad de las actividades del programa, sugerimos un sistema de apoyo a las decisiones basado en el modelo de agente de la dinámica regional de recursos humanos. El modelo refleja la situación demográfica en la región, los flujos migratorios, el sistema educativo, la economía y el entorno social en la región y las funciones de la administración regional.Neste artigo, sugerimos um conceito de sistema de suporte à informação para a gestão de recursos humanos em nível regional. Identificamos os principais fatores que afetam as características quantitativas e qualitativas dos recursos humanos regionais, incluindo o sistema educacional, os processos demográficos e de migração, e apresentamos um conceito do Programa para o seu desenvolvimento. Como ferramenta de apoio informacional ao Programa, propomos um sistema de informação distribuída com interfaces para vários grupos de usuários: administração regional, população e organizações. Para avaliar a eficácia das atividades do programa, sugerimos um sistema de apoio à decisão baseado no modelo de agente da dinâmica dos recursos humanos regionais. O modelo reflete a situação demográfica na região, os fluxos migratórios, o sistema educacional, a economia e o meio social da região e as funções da administração regional

Spacial and temporal dynamics of the volume fraction of the colloidal particles inside a drying sessile drop

Using lubrication theory, drying processes of sessile colloidal droplets on a solid substrate are studied. A simple model is proposed to describe temporal dynamics both the shape of the drop and the volume fraction of the colloidal particles inside the drop. The concentration dependence of the viscosity is taken into account. It is shown that the final shapes of the drops depend on both the initial volume fraction of the colloidal particles and the capillary number. The results of our simulations are in a reasonable agreement with the published experimental data. The computations for the drops of aqueous solution of human serum albumin (HSA) are presented.Comment: Submitted to EPJE, 7 pages, 8 figure

TXS 0506+056 with Updated IceCube Data

Past results from the IceCube Collaboration have suggested that the blazar TXS 0506+056 is a potential source of astrophysical neutrinos. However, in the years since there have been numerous updates to event processing and reconstruction, as well as improvements to the statistical methods used to search for astrophysical neutrino sources. These improvements in combination with additional years of data have resulted in the identification of NGC 1068 as a second neutrino source candidate. This talk will re-examine time-dependent neutrino emission from TXS 0506+056 using the most recent northern-sky data sample that was used in the analysis of NGC 1068. The results of using this updated data sample to obtain a significance and flux fit for the 2014 TXS 0506+056 "untriggered" neutrino flare are reported

Galactic Core-Collapse Supernovae at IceCube: “Fire Drill” Data Challenges and follow-up

The next Galactic core-collapse supernova (CCSN) presents a once-in-a-lifetime opportunity to make astrophysical measurements using neutrinos, gravitational waves, and electromagnetic radiation. CCSNe local to the Milky Way are extremely rare, so it is paramount that detectors are prepared to observe the signal when it arrives. The IceCube Neutrino Observatory, a gigaton water Cherenkov detector below the South Pole, is sensitive to the burst of neutrinos released by a Galactic CCSN at a level >10σ. This burst of neutrinos precedes optical emission by hours to days, enabling neutrinos to serve as an early warning for follow-up observation. IceCube\u27s detection capabilities make it a cornerstone of the global network of neutrino detectors monitoring for Galactic CCSNe, the SuperNova Early Warning System (SNEWS 2.0). In this contribution, we describe IceCube\u27s sensitivity to Galactic CCSNe and strategies for operational readiness, including "fire drill" data challenges. We also discuss coordination with SNEWS 2.0

All-Energy Search for Solar Atmospheric Neutrinos with IceCube

The interaction of cosmic rays with the solar atmosphere generates a secondary flux of mesons that decay into photons and neutrinos – the so-called solar atmospheric flux. Although the gamma-ray component of this flux has been observed in Fermi-LAT and HAWC Observatory data, the neutrino component remains undetected. The energy distribution of those neutrinos follows a soft spectrum that extends from the GeV to the multi-TeV range, making large Cherenkov neutrino telescopes a suitable for probing this flux. In this contribution, we will discuss current progress of a search for the solar neutrino flux by the IceCube Neutrino Observatory using all available data since 2011. Compared to the previous analysis which considered only high-energy muon neutrino tracks, we will additionally consider events produced by all flavors of neutrinos down to GeV-scale energies. These new events should improve our analysis sensitivity since the flux falls quickly with energy. Determining the magnitude of the neutrino flux is essential, since it is an irreducible background to indirect solar dark matter searches

Searching for IceCube sub-TeV neutrino counterparts to sub-threshold Gravitational Wave events

Since the release of the Gravitational Wave Transient Catalogue GWTC-2.1 by the LIGO-Virgo collaboration, sub-threshold gravitational wave (GW) candidates are publicly available. They are expected to be released in real-time as well, in the upcoming O4 run. Using these GW candidates for multi-messenger studies complement the ongoing efforts to identify neutrino counterparts to GW events. This in turn, allows us to schedule electromagnetic follow-up searches more efficiently. However, the definition and criteria for sub-threshold candidates are pretty flexible. Finding a multi-messenger counterpart via archival studies for these candidates will help to set up strong bounds on the GW parameters which are useful for defining a GW signal as sub-threshold, thereby increasing their significance for scheduling follow-up searches. Here, we present the current status of this ongoing work with the IceCube Neutrino Observatory. We perform a selection of the sub-threshold GW candidates from GWTC-2.1 and conduct an archival search for sub-TeV neutrino counterparts detected by the dense infill array of the IceCube Neutrino Observatory, known as "DeepCore". For this, an Unbinned Maximum Likelihood (UML) method is used. We report the 90% C.L. sensitivities of this sub-TeV neutrino dataset for each selected sub-threshold GW candidate, considering the spatial and temporal correlation between the GW and neutrino events within a 1000 s time window