The bivariate gas-stellar mass distributions and the mass functions of early- and late-type galaxies at z∼0z\sim0

We report the bivariate HI- and H$_2$-stellar mass distributions of local galaxies in addition of an inventory of galaxy mass functions, MFs, for HI, H$_2$, cold gas, and baryonic mass, separately into early- and late-type galaxies. The MFs are determined using the HI and H$_2$ conditional distributions and the galaxy stellar mass function, GSMF. For the conditional distributions we use the compilation presented in Calette et al. 2018. For determining the GSMF from $M_{\ast}\sim3\times10^{7}$ to $3\times10^{12}$ $M_{\odot}$, we combine two spectroscopic samples from the SDSS at the redshift range $0.0033<z<0.2$. We find that the low-mass end slope of the GSMF, after correcting from surface brightness incompleteness, is $\alpha\approx-1.4$, consistent with previous determinations. The obtained HI MFs agree with radio blind surveys. Similarly, the H$_2$ MFs are consistent with CO follow-up optically-selected samples. We estimate the impact of systematics due to mass-to-light ratios and find that our MFs are robust against systematic errors. We deconvolve our MFs from random errors to obtain the intrinsic MFs. Using the MFs, we calculate cosmic density parameters of all the baryonic components. Baryons locked inside galaxies represent 5.4% of the universal baryon content, while $\sim96$% of the HI and H$_2$ mass inside galaxies reside in late-type morphologies. Our results imply cosmic depletion times of H$_2$ and total neutral H in late-type galaxies of $\sim 1.3$ and 7.2 Gyr, respectively, which shows that late type galaxies are on average inefficient in converting H$_2$ into stars and in transforming HI gas into H$_2$. Our results provide a fully self-consistent empirical description of galaxy demographics in terms of the bivariate gas--stellar mass distribution and their projections, the MFs. This description is ideal to compare and/or to constrain galaxy formation models.Comment: 37 pages, 17 figures. Accepted for publication in PASA. A code that displays tables and figures with all the relevant statistical distributions and correlations discussed in this paper is available here https://github.com/arcalette/Python-code-to-generate-Rodriguez-Puebla-2020-result

Apoyo familiar en escolares de alta capacidad intelectual de diferentes contextos socioeducativos

El objetivo del trabajo fue analizar la percepción del apoyo familiar al aprendizaje en 79 alumnos de 6to grado con aptitud intelectual superior de tres contextos educativos (escuela urbana pública y privada, y rural indígena) en Morelos, México. Los alumnos respondieron la prueba SAGES-2 (Johnson & Corn, 2001) y el Cuestionario de Apoyo Familiar de Bazán & Domínguez (2009). Solamente se encontraron diferencias significativas entre los contextos analizados en la percepción de la comunicación regular con maestros relacionada con la materia Español, que fue percibida con mayor frecuencia en el contexto de la escuela privada, respecto al público indígena, independientemente del área de capacidades detectada. Se enfatiza la urgencia de investigar las variables del contexto socioeconómico y familiar para la comprensión de la manifestación, desarrollo y educación de las altas capacidades en alumnos de entornos culturales diferentes

Integración de Modelos de Planeamiento y Scheduling en Sistemas de Información Empresariales

La aplicación e implementación de modelos matemáticos tendientes a colaborar con la toma de decisiones no resulta un proceso sencillo y directo: existen diversos factores que dificultan la integración de los modelos matemáticos desarrollados con los sistemas de información empresariales. ERP 2 Optimizer Linkage (E2OL) es un sistema que acopla un modelo matemático al sistema empresarial o ERP utilizado, proveyendo las interfaces necesarias para la adecuada visualización y facilitando el modelado de problemas típicos presentes en la gestión de empresas de producción, al incrementar el empleo de los modelos de optimización de la planificación y scheduling en los procesos de manufactura de las empresas.Fil: Vidoni, Melina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Santa Fe. Instituto de Desarrollo y Diseño (i); ArgentinaFil: Rodriguez, Maria Analia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Bahía Blanca. Planta Piloto de Ingeniería Química (i); ArgentinaFil: Vecchietti, Aldo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Santa Fe. Instituto de Desarrollo y Diseño (i); Argentin

Cirurgia Guiada e Carga Imediata em Implantologia Oral

O avanço tecnológico da Medicina Dentária permitiu o desenvolvimento de novas técnicas na implantologia e assim alcançar uma evolução no tratamento dos edéntulos totais. Dentro destas técnicas destaca-se a cirurgia guiada, que consiste no emprego de imagens de tomografia computorizada para simular a colocação de implantes em um programa virtual computorizado, confeção inicial de uma guia cirúrgica e posterior colocação dos implantes osteointegrados sem necessidade de levantar retalho. Esta técnica apresenta como vantagens: uma diminuição do tempo de tratamento (cirúrgico e protésico), menor sangramento, maior previsibilidade e menos incómodo no pós-operatório

Supply Chain Design and Inventory Management Optimization in the Motors Industry

This article studies the supply chain redesign under demand uncertainty over a multi-period planning. We propose an optimization model to solve the problem taking into account strategic and tactical plans. This model is applied to the electric motors industry but it can be easily extended to other supply chains. Long term decisions involve new installations, expansions and elimination of warehouses. Tactical decisions include deciding inventory levels (safety stock and expected inventory) for each type of product in distribution centers and customer plants, as well as the connection links between the supply chain nodes. Capacity constraints are also considered when planning inventory levels. At the tactical level it is analyzed how demand of failing motors is satisfied, and whether to use new or used motors. The uncertain demand is addressed by defining the optimal amount of safety stock that guarantees certain service level at a customer plant. In addition, the risk-pooling effect is taken into account when defining inventory levels in distribution centers and customer zones. Due to the nonlinear nature of the original formulation, a piecewise linearization approach is applied to obtain a tight lower bound of the optimal solution.Fil: Rodriguez, Maria Analia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Santa Fe. Instituto de Desarrollo y Diseño (i); ArgentinaFil: Vecchietti, Aldo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Santa Fe. Instituto de Desarrollo y Diseño (i); ArgentinaFil: Grossmann, Ignacion E.. University Of Carnegie Mellon; Estados UnidosFil: Harjunskonsky, Liro. ABB AG, Corporate Research Germany; Alemani

Dark Matter Halo Properties vs. Local Density and Cosmic Web Location

We study the effects of the local environmental density and the cosmic web environment (filaments, walls, and voids) on key properties of dark matter halos using the Bolshoi-Planck LCDM cosmological simulation. The z = 0 simulation is analysed into filaments, walls, and voids using the SpineWeb method and also the VIDE package of tools, both of which use the watershed transform. The key halo properties that we study are the specific mass accretion rate, spin parameter, concentration, prolateness, scale factor of the last major merger, and scale factor when the halo had half of its z = 0 mass. For all these properties, we find that there is no discernible difference between the halo properties in filaments, walls, or voids when compared at the same environmental density. As a result, we conclude that environmental density is the core attribute that affects these properties. This conclusion is in line with recent findings that properties of galaxies in redshift surveys are independent of their cosmic web environment at the same environmental density at z ~ 0. We also find that the local web environment of the Milky Way and the Andromeda galaxies near the centre of a cosmic wall does not appear to have any effect on the properties of these galaxies' dark matter halos except for their orientation, although we find that it is rather rare to have such massive halos near the centre of a relatively small cosmic wall.Comment: 23 page