Caso de estudio de un evento simultáneo de viento cruzado y cortante vertical en el Aeroparque Jorge Newbery de la Ciudad Autónoma de Buenos Aires

Fil: Silva, Anabel Marques da. Servicio Meteorológico Nacional. Dirección de Meteorología Aeronáutica; Argentina.Fil: Vidal, Luciano. Servicio Meteorológico Nacional. Dirección Nacional de Ciencia e Innovación en Productos y Servicios. Dirección de Productos de Modelación Ambiental y de Sensores Remotos; Argentina.Fil: Ribero, Claudia Y. Servicio Meteorológico Nacional. Dirección de Meteorología Aeronáutica; Argentina.Fil: Vasques Ferro, Roxana. Servicio Meteorológico Nacional. Dirección de Meteorología Aeronáutica; Argentina.Las condiciones meteorológicas son un elemento fundamental a tener en cuenta a la hora de planificar y tomar decisiones en la aeronáutica. Fenómenos adversos como viento cruzado y cortante vertical pueden representar un riesgo para la seguridad operacional, tanto en fases de aterrizaje como de despegue, dado que afectan la actitud y dirección de las aeronaves. En esta Nota Técnica se analiza la situación meteorológica del día 30 de abril de 2023 que afectó el área del Aeroparque Jorge Newbery de la Ciudad Autónoma de Buenos Aires, donde luego del pasaje de un frente frío se registraron vientos intensos en superficie con componente cruzada a la pista y cortante del viento en la vertical, lo cual generó condiciones adversas para las operaciones aéreas en dicho aeropuerto.Weather conditions are a fundamental element to take into account when planning and making decisions in aeronautics. Adverse phenomena such as crosswinds and vertical wind shear can represent a risk to operational safety, both in landing and take-off phases, as they affect the attitude and direction of aircraft. This Technical Note analyses the meteorological situation on 30 April 2023 that affected the area of Aeroparque Jorge Newbery in the Autonomous City of Buenos Aires, where, after the passage of a cold front, intense surface winds with crosswinds on the runway and vertical wind shear were recorded, which generated adverse conditions for air operations at the airport

Identification of new targets of S-nitrosylation in neural stem cells by thiol redox proteomics

Nitric oxide (NO) is well established as a regulator of neurogenesis. NO increases the proliferation of neural stem cells (NSC), and is essential for hippocampal injury-induced neurogenesis following an excitotoxic lesion. One of the mechanisms underlying non-classical NO cell signaling is protein S-nitrosylation. This post-translational modification consists in the formation of a nitrosothiol group (R-SNO) in cysteine residues, which can promote formation of other oxidative modifications in those cysteine residues. S-nitrosylation can regulate many physiological processes, including neuronal plasticity and neurogenesis. In this work, we aimed to identify S-nitrosylation targets of NO that could participate in neurogenesis. In NSC, we identified a group of proteins oxidatively modified using complementary techniques of thiol redox proteomics. S-nitrosylation of some of these proteins was confirmed and validated in a seizure mouse model of hippocampal injury and in cultured hippocampal stem cells. The identified S-nitrosylated proteins are involved in the ERK/MAPK pathway and may be important targets of NO to enhance the proliferation of NSC.PTDC/QUI-QFI/29319/2017; UID/BIM/04773/2019info:eu-repo/semantics/publishedVersio

Termos de Compromisso de Estágios de 2011 (G)

Neste arquivo contém os TCEs de 25 estagiários no perído de 20/04/2011 à 29/09/2011UFS

NEOTROPICAL ALIEN MAMMALS: a data set of occurrence and abundance of alien mammals in the Neotropics

Biological invasion is one of the main threats to native biodiversity. For a species to become invasive, it must be voluntarily or involuntarily introduced by humans into a nonnative habitat. Mammals were among first taxa to be introduced worldwide for game, meat, and labor, yet the number of species introduced in the Neotropics remains unknown. In this data set, we make available occurrence and abundance data on mammal species that (1) transposed a geographical barrier and (2) were voluntarily or involuntarily introduced by humans into the Neotropics. Our data set is composed of 73,738 historical and current georeferenced records on alien mammal species of which around 96% correspond to occurrence data on 77 species belonging to eight orders and 26 families. Data cover 26 continental countries in the Neotropics, ranging from Mexico and its frontier regions (southern Florida and coastal-central Florida in the southeast United States) to Argentina, Paraguay, Chile, and Uruguay, and the 13 countries of Caribbean islands. Our data set also includes neotropical species (e.g., Callithrix sp., Myocastor coypus, Nasua nasua) considered alien in particular areas of Neotropics. The most numerous species in terms of records are from Bos sp. (n = 37,782), Sus scrofa (n = 6,730), and Canis familiaris (n = 10,084); 17 species were represented by only one record (e.g., Syncerus caffer, Cervus timorensis, Cervus unicolor, Canis latrans). Primates have the highest number of species in the data set (n = 20 species), partly because of uncertainties regarding taxonomic identification of the genera Callithrix, which includes the species Callithrix aurita, Callithrix flaviceps, Callithrix geoffroyi, Callithrix jacchus, Callithrix kuhlii, Callithrix penicillata, and their hybrids. This unique data set will be a valuable source of information on invasion risk assessments, biodiversity redistribution and conservation-related research. There are no copyright restrictions. Please cite this data paper when using the data in publications. We also request that researchers and teachers inform us on how they are using the data