Bromalitos de la formación ameghino (=nordenskjöld) jurasico superior de la Península Antártica

We present the study of the bromalites retrieved from the Upper Jurassic Ameghino (=Nordenskjöld) Formation at Longing Gap in the Antarctic Peninsula. The material was morphologically and chemically analyzed. We made a qualitative study and a taphonomic analysis of the specimens and tested paleobiological and paleoecological hypotheses. We conclude that the samples analyzed are coprolites and propose a new ichnotaxon, Antarctoscoprus longinensis ichnogen. and ichnosp. nov., characterized by being a small and flat coprolite differing from other ichnogenera by its composition, which consists mainly of actinopterygian remains (e.g., scales, vertebrae, skull bones, and teeth). Antarctoscoprus longinensis includes three morphotypes (i.e., circular, subcircular, and elongated) derived from an elongated three-dimensional original form by compactation. Based on the internal content, we infer the producers of the coprolites were carnivorous predators, putatively an ichthyophagous taxon. Due to the abundance of actinopterygians—mainly aspidorhynchids and ichthyodectids— and the size of the coprolites we propose macropredator fishes as the putative producers. The mainly undisrupted fish carcasses and coprolites allow us to conduct further studies that might lead to a better understanding of the ancient communities living in the Late Jurassic Sea that surrounded Antarctica.Presentamos el estudio de los bromalitos recuperados de la Formación Ameghino (=Nordenskjöld) del Jurásico Superior en Longing Gap, en la Península Antártica. El material fue analizado morfológica y químicamente. Realizamos un estudio cualitativo y un análisis tafonómico de los especímenes y pusimos a prueba hipótesis paleobiológicas y paleoecológicas. Concluimos que las muestras analizadas son coprolitos y proponemos un nuevo icnotaxón, Antarctoscoprus longinensis ichnogen. e ichnosp. nov., caracterizado por ser un coprolito pequeño y plano que se diferencia de otros icnogéneros por su composición, que consiste principalmente en restos de actinopterigios (por ejemplo, escamas, vértebras, huesos del cráneo y dientes). Antarctoscoprus longinensis incluye tres morfotipos (es decir, circular, subcircular y alargado) derivados de una forma original tridimensional alargada por compactación. Basándonos en el contenido interno, los productores de los coprolitos eran depredadores carnívoros, putativamente un taxón ictiófago. Debido a la abundancia de actinopterigios—principalmente aspidorrínquidos e ictiodéctidos—y al tamaño de los coprolitos, proponemos a los peces macrófagos como supuestos productores. Los cadáveres de peces y los coprolitos, en su mayoría intactos, nos permiten llevar a cabo nuevos estudios que podrían conducir a una mejor comprensión de las antiguas comunidades que vivían en el Mar Jurásico Tardío que rodeaba la Antártida.Fil: Bigurrarena Ojeda, Mauricio Andres. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. División Paleontología Vertebrados; ArgentinaFil: Gouiric Cavalli, Soledad. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. División Paleontología Vertebrados; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata; ArgentinaFil: Pérez, Leandro Martín. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. División Paleontología Vertebrados; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata; ArgentinaFil: Reguero, Marcelo Alfredo. Universidad Nacional de La Plata; Argentina. Ministerio de Relaciones Exteriores, Comercio Interno y Culto. Dirección Nacional del Antártico. Instituto Antártico Argentino; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentin

DQN dynamic pricing and revenue driven service federation strategy

This paper proposes a dynamic pricing and revenue-driven service federation strategy based on a Deep Q-Network (DQN) to instantly and automatically decide federation across different service provider domains, each introduces dynamic service prices offering to its customers and towards other domains. A dynamic pricing model is considered in this work based on the analysis of real pricing data collected from public cloud provider, and upon this a dynamic arrival process as a result of the price changes is proposed for formulating the service federation problem as a Markov Decision Problem (MDP). In this work, several reinforcement learning algorithms are developed to solve the problem, and the presented results show that the DQN method reached 90% of the optimal revenue and outperformed existing state-of-the-art strategies, and it can learn the federation pricing dynamics to make optimum federation decisions according to price changes

Aspectos ecológicos y ambientales de los bosques nativos y plantaciones forestales de la Argentina : una visión panorámica y conceptual

Fil: Frangi, Jorge Luis. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. Laboratorio de Investigaciones de Sistemas Ecológicos y Ambientales; ArgentinaFil: Pérez, Carolina. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. Laboratorio de Investigaciones de Sistemas Ecológicos y Ambientales; ArgentinaFil: Martiarena, Rodolfo Andres. INTA EEA. Misiones; ArgentinaFil: Pinazo, Martín. INTA EEA. Misiones; ArgentinaFil: Martínez Pastur, Guillermo. Centro Austral de Investigaciones Científicas. Tierra del Fuego; ArgentinaFil: Brown, Alejandro. Fundación ProYungas; TucumánFil: Peri, Pablo L.. Universidad Nacional de la Patagonia Austral. INTA EEA. Río Gallegos; ArgentinaFil: Ceballos, Darío S.. INTA EEA. Campana; Argentin

Direct Magnetic Evidence, Functionalization, and Low-Temperature Magneto-Electron Transport in Liquid-Phase Exfoliated FePS3

Magnetism and the existence of magnetic order in a material is determined by its dimensionality. In this regard, the recent emergence of magnetic layered van der Waals (vdW) materials provides a wide playground to explore the exotic magnetism arising in the two-dimensional (2D) limit. The magnetism of 2D flakes, especially antiferromagnetic ones, however, cannot be easily probed by conventional magnetometry techniques, being often replaced by indirect methods like Raman spectroscopy. Here, we make use of an alternative approach to provide direct magnetic evidence of few-layer vdW materials, including antiferromagnets. We take advantage of a surfactant-free, liquid-phase exfoliation (LPE) method to obtain thousands of few-layer FePS3 flakes that can be quenched in a solvent and measured in a conventional SQUID magnetometer. We show a direct magnetic evidence of the antiferromagnetic transition in FePS3 few-layer flakes, concomitant with a clear reduction of the Néel temperature with the flake thickness, in contrast with previous Raman reports. The quality of the LPE FePS3 flakes allows the study of electron transport down to cryogenic temperatures. The significant through-flake conductance is sensitive to the antiferromagnetic order transition. Besides, an additional rich spectra of electron transport excitations, including secondary magnetic transitions and potentially magnon-phonon hybrid states, appear at low temperatures. Finally, we show that the LPE is additionally a good starting point for the mass covalent functionalization of 2D magnetic materials with functional molecules. This technique is extensible to any vdW magnetic familyE.B. acknowledges funds from Ministerio de Ciencia e Innovación in Spain (RTI2018-096075-A-C22, RYC2019- 028429-I). E.M.P. thanks the Spanish Ministerio de Ciencia e Innovación (PID2020-116661RB-I00) and Comunidad de Madrid (P2018/NMT-4367). M.G.H. and A.C.-G. acknowledge funds from European Union Horizon 2020 research and innovation program (Graphene Core3-Grant agreement no. 881603 Graphene-based disruptive technologies), EU FLAGERA through the project To2Dox (JTC-2019-009), and Comunidad de Madrid through the project CAIRO-CM project (Y2020/NMT-6661). A.C.-G. also acknowledges funding from the European Research Council (ERC) under the European Union’s Horizon 2020 research and innovation program (grant agreement no. 755655, ERC-StG 2017 project 2D-TOPSENSE) and the Ministry of Science and Innovation (Spain) through the project PID2020-115566RB-I00. M.L.R.G. acknowledges support by the Spanish Ministry of Science and Innovation through Research Project PID 2020- 113753RB-100. The National Centre for Electron Microscopy (ELECMI National Singular Scientific Facility) is also acknowledge for provision of access to corrected aberration microscopy facilities. CzechNanoLab Research Infrastructure supported by MEYS CR (LM2018110) is acknowledge

High neutrophil to lymphocyte ratio and decreased CD69+NK cells represent a phenotype of high risk in early-stage breast cancer patients

Purpose: Breast cancer (BC) is a highly heterogeneous disease presenting a broad range of clinical and molecular characteristics. In the past years, a growing body of evidence demonstrated that immune response plays a significant role in cancer outcome. However, immune prognostic markers are not completely validated in clinical practice in BC patients. Materials and methods: With the aim to characterize immune features, several parameters were analyzed in peripheral blood at diagnosis of 85 nonmetastatic BC patients between April 2011 and July 2014. Results: With a median follow-up of 38.6 months, peripheral blood analysis of BC patients (stages I, II, and III) showed that total lymphocyte and T lymphocyte counts were augmented in nonrelapsed patients. Also, a higher neutrophil-to-lymphocytes ratio was associated with prolonged disease-free survival. Natural killer cell receptor analysis revealed that early activation receptor CD69 was associated with a better outcome. Conclusion: This preliminary evidence is in accordance with the concept of immune surveillance. We suggest an “immune phenotype” that provides relevant prognostic information in early-stage BC patients and which could be useful in the decision-making process.Fil: Mandó, Pablo. Oncology Research Center; ArgentinaFil: Rizzo, Manglio Miguel. Instituto Alexander Fleming; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Roberti, María Paula. Oncology Research Center; ArgentinaFil: Juliá, Estefanía Paula. Oncology Research Center; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Pampena, María Betina. Oncology Research Center; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: de la Puente, Constanza Pérez. Instituto Alexander Fleming; ArgentinaFil: Loza, Carlos Martín. Instituto Alexander Fleming; ArgentinaFil: Ponce, Carolina. Instituto Alexander Fleming; ArgentinaFil: Nadal, Jorge. Instituto Alexander Fleming; ArgentinaFil: Coló, Federico Andres. Instituto Alexander Fleming; ArgentinaFil: Mordoh, José. Oncology Research Center; ArgentinaFil: Levy, Estrella Mariel. Instituto Alexander Fleming; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentin

Perceived quality of automotive interior components

[EN] Biomechanics Institute of Valencia (IBV) and Faurecia Interior Systems, have worked together to develop a ¿virtual¿ protocol to assess the perceived quality of automotive interior components. For this purpose, the differences between the real product evaluation and the image have been analyzed, identifying what kind of adaptations are required by the perceived quality protocols.[ES] El Instituto de Biomecánica (IBV) y FAURECIA Interior Systems, han trabajado de la mano para desarrollar un protocolo de evaluación "virtual" de la calidad percibida de componentes de interior de automóvil. Para ello, se han analizado las diferencias entre la evaluación del producto real y una imagen, identificando qué tipo de adaptaciones requieren los protocolos de evaluación de calidad percibida.Soler Valero, A.; Mateo Martínez, B.; Diaz Pineda, JA.; Sancho Mollá, M.; Solaz Sanahuja, JS.; Signes Pérez, E.; Martín Pérez, J.... (2013). Calidad percibida en el interior de vehículos. Revista de biomecánica. 59:9-12. http://hdl.handle.net/10251/38697S9125

Genetic variants in KCNJ11, TCF7L2 and HNF4A are associated with type 2 diabetes, BMI and dyslipidemia in families of Northeastern Mexico: A pilot study

Abstract. The aim of the present study was to investigate whether genetic markers considered risk factors for metabolic syndromes, including dyslipidemia, obesity and type 2 diabetes mellitus (T2DM), can be applied to a Northeastern Mexican population. A total of 37 families were analyzed for 63 single nucleotide polymorphisms (SNPs), and the age, body mass index (BMI), glucose tolerance values and blood lipid levels, including those of cholesterol, low-density lipoprotein (LDL), very LDL (VLDL), high-density lipoprotein (HDL) and triglycerides were evaluated. Three genetic markers previously associated with metabolic syndromes were identified in the sample population, including KCNJ11, TCF7L2 and HNF4A. The KCNJ11 SNP rs5210 was associated with T2DM, the TCF7L2 SNP rs11196175 was associated with BMI and cholesterol and LDL levels, the TCF7L2 SNP rs12255372 was associated with BMI and HDL, VLDL and triglyceride levels, and the HNF4A SNP rs1885088 was associated with LDL levels (P<0.05)

The Spanish Infrared Camera onboard the EUSO-BALLOON (CNES) flight on August 24, 2014

The EUSO-Balloon (CNES) campaign was held during Summer 2014 with a launch on August 24. In the gondola, next to the Photo Detector Module (PDM), a completely isolated Infrared camera was allocated. Also, a helicopter which shooted flashers flew below the balloon. We have retrieved the Cloud Top Height (CTH) with the IR camera, and also the optical depth of the nonclear atmosphere have been inferred with two approaches: The first one is with the comparison of the brightness temperature of the cloud and the real temperature obtained after the pertinent corrections. The second one is by measuring the detected signal from the helicopter flashers by the IR Camera, considering the energy of the flashers and the location of the helicopter

The atmospheric science of JEM-EUSO

An Atmospheric Monitoring System (AMS) is critical suite of instruments for JEM-EUSO whose aim is to detect Ultra-High Energy Cosmic Rays (UHECR) and (EHECR) from Space. The AMS comprises an advanced space qualified infrared camera and a LIDAR with cross checks provided by a ground-based and airborne Global Light System Stations. Moreover the Slow Data Mode of JEM-EUSO has been proven crucial for the UV background analysis by comparing the UV and IR images. It will also contribute to the investigation of atmospheric effects seen in the data from the GLS or even to our understanding of Space Weather

Industrial, Collaborative and Mobile Robotics in Latin America: Review of Mechatronic Technologies for Advanced Automation

Mechatronics and Robotics (MaR) have recently gained importance in product development and manufacturing settings and applications. Therefore, the Center for Space Emerging Technologies (C-SET) has managed an international multi-disciplinary study to present, historically, the first Latin American general review of industrial, collaborative, and mobile robotics, with the support of North American and European researchers and institutions. The methodology is developed by considering literature extracted from Scopus, Web of Science, and Aerospace Research Central and adding reports written by companies and government organizations. This describes the state-of-the-art of MaR until the year 2023 in the 3 Sub-Regions: North America, Central America, and South America, having achieved important results related to the academy, industry, government, and entrepreneurship; thus, the statistics shown in this manuscript are unique. Also, this article explores the potential for further work and advantages described by robotic companies such as ABB, KUKA, and Mecademic and the use of the Robot Operating System (ROS) in order to promote research, development, and innovation. In addition, the integration with industry 4.0 and digital manufacturing, architecture and construction, aerospace, smart agriculture, artificial intelligence, and computational social science (human-robot interaction) is analyzed to show the promising features of these growing tech areas, considering the improvements to increase production, manufacturing, and education in the Region. Finally, regarding the information presented, Latin America is considered an important location for investments to increase production and product development, taking into account the further proposal for the creation of the LATAM Consortium for Advanced Robotics and Mechatronics, which could support and work on roboethics and education/R+D+I law and regulations in the Region. Doi: 10.28991/ESJ-2023-07-04-025 Full Text: PD