On the Result of Invariance of the Closure Set of the Real Projections of the Zeros of an Important Class of Exponential Polynomials

In this paper we provide the proof of a practical point-wise characterization of the set RP defined by the closure set of the real projections of the zeros of an exponential polynomial P(z) = Σn j=1 cjewjz with real frequencies wj linearly independent over the rationals. As a consequence, we give a complete description of the set RP and prove its invariance with respect to the moduli of the c′ js, which allows us to determine exactly the gaps of RP and the extremes of the critical interval of P(z) by solving inequations with positive real numbers. Finally, we analyse the converse of this result of invariance.

Constrained self-organizing feature map to preserve feature extraction topology

In many classification problems, it is necessary to consider the specific location of an n-dimensional space from which features have been calculated. For example, considering the location of features extracted from specific areas of a two-dimensional space, as an image, could improve the understanding of a scene for a video surveillance system. In the same way, the same features extracted from different locations could mean different actions for a 3D HCI system. In this paper, we present a self-organizing feature map able to preserve the topology of locations of an n-dimensional space in which the vector of features have been extracted. The main contribution is to implicitly preserving the topology of the original space because considering the locations of the extracted features and their topology could ease the solution to certain problems. Specifically, the paper proposes the n-dimensional constrained self-organizing map preserving the input topology (nD-SOM-PINT). Features in adjacent areas of the n-dimensional space, used to extract the feature vectors, are explicitly in adjacent areas of the nD-SOM-PINT constraining the neural network structure and learning. As a study case, the neural network has been instantiate to represent and classify features as trajectories extracted from a sequence of images into a high level of semantic understanding. Experiments have been thoroughly carried out using the CAVIAR datasets (Corridor, Frontal and Inria) taken into account the global behaviour of an individual in order to validate the ability to preserve the topology of the two-dimensional space to obtain high-performance classification for trajectory classification in contrast of non-considering the location of features. Moreover, a brief example has been included to focus on validate the nD-SOM-PINT proposal in other domain than the individual trajectory. Results confirm the high accuracy of the nD-SOM-PINT outperforming previous methods aimed to classify the same datasets.

Realistic limits for subpixel movement detection

Object tracking with subpixel accuracy is of fundamental importance in many fields since it provides optimal performance at relatively low cost. Although there are many theoretical proposals that lead to resolution increments of several orders of magnitude, in practice this resolution is limited by the imaging systems. In this paper we propose and demonstrate through simple numerical models a realistic limit for subpixel accuracy. The final result is that maximum achievable resolution enhancement is connected with the dynamic range of the image, i.e., the detection limit is 1/2∧(nr.bits). The results here presented may aid in proper design of superresolution experiments in microscopy, surveillance, defense, and other fields.

Smart Monitoring Embedded Service for Energy-Efficient and Sustainable Management in Data Centers

Information technologies (IT) currently represent 2% of CO2 emissions. In recent years, a wide variety of IT solutions have been proposed, focused on increasing the energy efficiency of network data centers. Monitoring is one of the fundamental pillars of these systems, providing the information necessary for adequate decision making. However, today’s monitoring systems (MSs) are partial, specific and highly coupled solutions. This study proposes a model for monitoring data centers that serves as a basis for energy saving systems, offered as a value-added service embedded in a device with low cost and power consumption. The proposal is general in nature, comprehensive, scalable and focused on heterogeneous environments, and it allows quick adaptation to the needs of changing and dynamic environments. Further, a prototype of the system has been implemented in several devices, which has allowed validation of the proposal in addition to identification of the minimum hardware profile required to support the model.

La caja no era tan boba: Contenidos Audiovisuales para una Ficción más compleja

Para los distintos actores sociales que componen la Comunidad Audiovisual de una localidad alejada de los grandes centros capitalinos es prioritario acceder, entre otras cuestiones, a conocimientos técnicos-especializados para generar propuestas creativas, sustentables y competitivas. Desde la sanción en nuestro país de la Ley de Servicios de Comunicación Audiovisuales N° 26.522, acompañada por una importante política de fomento y promoción de Contenidos Audiovisuales Digitales para Televisión, se han ampliado las oportunidades para la consolidación y crecimiento del sector a nivel regional en lo que respecta tanto a la producción como a la distribución de diversos tipos de obras. En este marco, la implicación y compromiso de las Universidades públicas en estos procesos cobra centralidad dado que se instituyen en un actor de peso en términos de sus posibilidades de intervención en lo que respecta a la construcción y circulación de saberes específicos. Como parte de dicha comunidad educativa consideramos que es un deber ineludible comunicar los resultados de nuestro trabajo a los fines de su apropiación por parte de las organizaciones audiovisuales. Entonces, este proyecto de transferencia de conocimientos técnicos se orienta a reforzar los procesos de capacitación y actualización de distintas organizaciones locales que constituyen el Nodo Audiovisual Tecnológico (NAT) de Villa María. Concebidos los NAT como sistemas productivos, los mismos están conformados por diversos sujetos colectivos tales como institutos especializados, instituciones públicas, asociaciones civiles sin fin de lucro y PyMES audiovisuales. Estos actores participan en un ámbito en el que se pretende establecer una democratización de los mecanismos de participación, con énfasis en principios asociativos; y una federalización de la producción audiovisual, entre otras cuestiones. Dentro de sus objetivos se proponen fomentar la investigación y desarrollo de nuevos formatos y aplicaciones para la televisión digital, buscando establecer especializaciones tecnológicas, teóricas y productivas. En pos de esta intención es que los resultados obtenidos por el equipo de investigación pueden resultar útiles y aplicables dado que hemos profundizado en los nuevos dispositivos ficcionales que identificamos en las producciones seriadas televisivas anglosajonas destacadas por la crítica y que alcanzaron, en algunos casos, un nivel de popularización en su consumo. El tipo de objeto audiovisual que analizamos es pertinente para los miembros del NAT ya que predominan en las convocatorias para financiamiento de ficción televisiva criterios asentados en la matriz de la serialidad. Más allá de que los NAT apuntan a promover la generación de contenidos que den cuenta de la cultura y la identidad local y regional, es importante conocer ciertas tendencias en la producción ficcional internacional para concebir alternativas más cercanas a las actuales experiencias de consumo de este tipo de relatos. Es indiscutible que se ha producido una ruptura en los modelos tradicionales de narrar para televisión: cuestión que, a su vez, nos vincula a un segundo receptor de este proyecto conformado por la comunidad educativa de la Carrera de Diseño y Producción Audiovisual de la UNVM a los fines de proveer saberes renovados y construidos desde la indagación científica (Información en Anexo). Así se configura un dispositivo de transferencia tecnológica al que hemos denominado TICAVF/TV (Transferencia de Investigación sobre Contenidos Audiovisuales de Ficción para Televisión) en el que se liga la producción de investigación aplicada, las organizaciones del sector local, y sujetos implicados en los procesos de enseñanza-aprendizaje universitarios. El dispositivo permitirá la construcción dialógica de saberes a partir de instancias de intercambio que redundará en las modificaciones que el equipo de investigación realizará para construir un material de divulgación acorde a demandas específicas.

(Table 1) Age of sediments with anomalously high Hg concentrations in core BDP-98, Lake Baikal

Mercury distribution was examined in the sediments of Lake Baikal that were sampled within the scope of the Baikal Drilling International Project in 1996-1999. The Hg concentrations in the ancient sediments are close to those in the modern sediments with the exception of a few peak values, whose ages coincide with those of active volcanism in adjacent areas. Mercury was demonstrated to be contained in the sediments in the adsorbed Hg0 mode, predominantly in relation with organic matter. When the organic matter of the bottom sediments is decomposed in the course of lithification, Hg is retained in the sediments adsorbed on the residual organic matter, and the concentration of this element corresponds to its initial content in the bottom sediments during their accumulation. Mercury concentrations in lithologically distinct bottom sediments of Lake Baikal and its sediments as a whole depend on the climate. Sediments that were formed during warm periods of time contain more Hg than those produced during cold periods or glaciation. Periodical variations in the Hg concentrations in the bottom sediments of Lake Baikal reflect the variations in the contents of this element in the Earth's atmosphere in the Late Cenozoic, which were, in turn, controlled by the climatic variations on the planet and, thus, can be used for detailed reconstructions of variations in the average global temperature near the planet's surface.

Benthic foraminiferal number of specimens in Cretaceous samples of various DSDP and ODP Sites (Table 2)

Benthic foraminifera from 24 DSDP/ODP sites were investigated to assess their global horizontal and vertical distribution in the deep-sea environment at the end of the Cretaceous period. The samples analyzed are from the late Maastrichtian and within the planktic foraminiferal Abathomphus mayaroensis Zone from a wide range of oceans and paleolatitudes, including the low-latitude Sites 10 and 384 (Atlantic Ocean), 47, 171, 305, and 465 (Pacific Ocean), the mid-latitude Sites 20, 111, 356, 363, 516, 525, 527, 548, and 605 (Atlantic Ocean), 216, 217, and 758 (Indian Ocean), and the high-latitude Sites 208 (Pacific Ocean), 689,698,700,738 and 750 (Southern Ocean). Correspondence analysis, based on the 75 most common taxa, shows a clear biogeographic trend along the first correspondence axis by arranging the sites in paleolatitudinal order. The assemblages from the Tethyan Realm (i.e., low latitudes) are marked by abundant heavily calcified buliminids (such as Bulimina incisa, B. trinitatensis, B. velascoensis, and Reussella szajnochae) and Aragonia spp., whereas high-latitude faunas are characterized by abundant Alabamina creta, Gyroidinoides quadratus, and Pullenia coryelli. The results indicate that the faunas at low and high latitudes, respectively, were influenced by quite different environmental conditions. This is based on the much higher abundance of infaunal morphotypes at low and mid latitudes compared to high latitudes, suggesting that the biogeographic trend found in the data set coincides with the trophic regime at the various sites. The results also provide support for the hypothesis that postulates two simultaneous sources and mechanisms for deep-water formation during the Late Cretaceous, including warm, saline deep water produced by evaporation at low (equatorial) latitudes in contrast to the formation of cold deep waters at high (southern) latitudes.

Chemical composition of celadonite-glauconite minerals and cristobalite from altered oceanic basalts of DSDP Hole 49-407

Features of associations of newly formed minerals in Oligocene basalts from the Reykjanes Ridge (DSDP Hole 407), which consist in wide development of celadonite-glauconite group minerals, as well as saponite, cristobalite and specific Fe-Si formations is shown. Detailed mineralogical and geochemical characteristics of these newly formed minerals are reported. It is firstly shown that at underwater alteration of basalts not only celadonite can be generated, but also glauconite. Dependence of secondary mineral composition from petrochemical features of original basalts and from their permeability is revealed. It is concluded that complexes of secondary minerals formed during alteration of basalts with similar petrochemical characteristics in the ocean and on the continent are different.

Gesammelte Schriften und Denkwürdigkeiten des General-feldmarschalls Grafen Helmuth von Moltke ...

Vol. 3: 2. Aufl.; vol. 8: 6. Aufl.

Sbornik materīalov po russko-turet︠s︡koĭ voĭni︠e︡ 1877-78 g.g. na Balkanskom poluostrovi︠e︡.

Beginning 1906 issued by the army's Glavnoe upravlenie generalʹnogo shtaba. Voenno-istoricheskai︠a︡ komissii︠a︡.

Josephi Jacobi Plenck, chirurgiae doctoris, chemiae atque botanices professoris, publici, ordinarii in Academia chirurgica militari, nec non directoris pharmacopaearum militarium atque chirurgi status militaris supremi, Bromatologia, seu, Doctrina de esculentis et potulentis.

"Nicotiana, Tabacum l., Toback": p. 352-353.

Recherches philosophiques sur les Américains, ou Mémoires intéressants pour servir à l'histoire de l'espece humaine /

Title in red & black.