30 research outputs found

    Fusion of Sensor Data and Intelligence in FITS

    Get PDF
    Proceedings of: 16th International Conference on Information Fusion (FUSION 2013): Istambul, Turkey 9-12 July 2013.The design and implementation of fusion systems working in real conditions requires functional and performance specification, analysis of information input and contextual domain, and development of testing and validation tools. This paper presents a fusion system recently developed to operate with EW and ISR sensors on-board of patrol aircraft, which must be fused with information from other collaborative entities and intelligence in databases. The paper describes the overall organization of the system developed, modules and the data flow. The characterization of data sources and core algorithms for data alignment, uncertainty representation and fusion management are detailed and validated in realistic situations.This work was supported in part by Projects FITS-DFS (EADS/CASA), MEyC TEC2012-37832-C02-01, MEyC TEC2011-28626-C02-02 and CAM CONTEXTS (S2009/TIC-1485).Publicad

    Prognostic impact of DNMT3A mutation in acute myeloid leukemia with mutated NPM1

    Get PDF
    Prognostic impact; Mutation; Acute myeloid leukemiaImpacte pronòstic; Mutació; Leucèmia mieloide agudaImpacto pronóstico; Mutación; Leucemia mieloide agudaThe negative prognostic impact of internal tandem duplication of FLT3 (FLT3-ITD) in patients with acute myeloid leukemia with mutated NPM1 (AML-NPM1) is restricted to those with a higher FLT3-ITD allelic ratio (FLT3high; ≥0.5) and considered negligible in those with a wild-type (FLT3WT)/low ITD ratio (FLT3low). Because the comutation of DNMT3A (DNMT3Amut) has been suggested to negatively influence prognosis in AML-NPM1, we analyzed the impact of DNMT3Amut in FLT3-ITD subsets (absent, low, and high ratios). A total of 164 patients diagnosed with AML-NPM1 included in 2 consecutive CETLAM protocols and with DNMT3A and FLT3 status available were studied. Overall, DNMT3Amut status did not have a prognostic impact, with comparable overall survival (P = .2). Prognostic stratification established by FLT3-ITD (FLT3WT = FLT3low > FLT3high) was independent of DNMT3Amut status. Measurable residual disease (MRD) based on NPM1 quantitative polymerase chain reaction was available for 94 patients. DNMT3Amut was associated with a higher number of mutated NPM1 transcripts after induction (P = .012) and first consolidation (C1; P < .001). All DNMT3Amut patients were MRD+ after C1 (P < .001) and exhibited significant MRD persistence after C2 and C3 (MRD+ vs MRD−; P = .027 and P = .001, respectively). Finally, DNMT3Amut patients exhibited a trend toward greater risk of molecular relapse (P = .054). In conclusion, DNMT3Amut did not modify the overall prognosis exerted by FLT3-ITD in AML-NPM1 despite delayed MRD clearance, possibly because of MRD-driven preemptive intervention.This work was supported in part by the Biomedical Research Institute (IIB Sant-Pau) and the José Carreras Leukemia Research Institute as well as grants from the Catalan Government (PERIS SLT002/16/0043 and AGAUR 2017 SGR 139) and the Instituto de Salud Carlos III, Ministerio de Economía y Competitividad, Spain (PI17/01246, PI20/01621 and CM20/00061)

    A randomized phase II clinical trial of dendritic cell vaccination following complete resection of colon cancer liver metastasis

    Get PDF
    Surgically resectable synchronic and metachronic liver metastases of colon cancer have high risk of relapse in spite of standard-of-care neoadjuvant and adjuvant chemotherapy regimens. Dendritic cell vaccines loaded with autologous tumor lysates were tested for their potential to avoid or delay disease relapses (NCT01348256). Patients with surgically amenable liver metastasis of colon adenocarcinoma (n = 19) were included and underwent neoadjuvant chemotherapy, surgery and adjuvant chemotherapy. Fifteen patients with disease-free resection margins were randomized 1:1 to receive two courses of four daily doses of dendritic cell intradermal vaccinations versus observation. The trial had been originally designed to include 56 patients but was curtailed due to budgetary restrictions. Follow-up of the patients indicates a clear tendency to fewer and later relapses in the vaccine arm (median disease free survival –DFS-) 25.26 months, 95% CI 8. 74-n.r) versus observation arm (median DFS 9.53 months, 95% CI 5.32–18.88)

    European LeukemiaNet 2017 risk stratification for acute myeloid leukemia: validation in a risk-adapted protocol

    Get PDF
    The 2017 European LeukemiaNet (ELN 2017) guidelines for the diagnosis and management of acute myeloid leukemia (AML) have become fundamental guidelines to assess the prognosis and postremission therapy of patients. However, they have been retrospectively validated in few studies with patients included in different treatment protocols. We analyzed 861 patients included in the Cooperativo Para el Estudio y Tratamiento de las Leucemias Agudas y Mielodisplasias-12 risk-adapted protocol, which indicates cytarabine-based consolidation for patients allocated to the ELN 2017 favorable-risk group, whereas it recommends allogeneic stem cell transplantation (alloSCT) as a postremission strategy for the ELN 2017 intermediateand adverse-risk groups. We retrospectively classified patients according to the ELN 2017, with 327 (48%), 109 (16%), and 245 (36%) patients allocated to the favorable-, intermediate-, and adverse-risk group, respectively. The 2- and 5-year overall survival (OS) rates were 77% and 70% for favorable-risk patients, 52% and 46% for intermediate-risk patients, and 33% and 23% for adverse-risk patients, respectively. Furthermore, we identified a subgroup of patients within the adverse group (inv(3)/t(3;3), complex karyotype, and/or TP53 mutation/17p abnormality) with a particularly poor outcome, with a 2-year OS of 15%. Our study validates the ELN 2017 risk stratification in a large cohort of patients treated with an ELN-2017 risk-adapted protocol based on alloSCT after remission for nonfavorable ELN subgroups and identifies a genetic subset with a very poor outcome that warrants investigation of novel strategies

    Plasma lipid profiles discriminate bacterial from viral infection in febrile children

    Get PDF
    Fever is the most common reason that children present to Emergency Departments. Clinical signs and symptoms suggestive of bacterial infection ar

    Estudio de la factibilidad para la cración de una empresa de calzado en el cantón Milagro.

    No full text
    El desarrollo de este trabajo está orientado a la producción del calzado de este cantón, puesto que en la actualidad el calzado mantiene un bajo perfil en el mercado, debido a la falta de una fábrica en este sector, a pesar de que cuenta con un mercado ampliamente rentable, por ello, surgió la idea de realizar un estudio de factibilidad para creación de una empresa productora de calzado en el cantón Milagro. El proyecto está distribuido por cinco capítulos, se detalla minuciosamente la problemática planteada, susobjetivos, delimitación, formulación y su correspondiente justificación, se establece una pequeña reseña histórica sobre esta actividad comercial, se encontrara toda la información necesaria para una mejor comprensión dl trabajo investigativo encontrándose su respectiva hipótesis y variables. En el mercado metodológico se determinó el universo; es decir una porción de la población para el cálculo de la muestra donde se utilizó la herramienta investigativa conocida como la encuesta dirigida a la ciudadanía de este sector, una vez obtenidos los datos de la encuesta se procedió a realizar la interpretación de los resultados es decir la recolección, tabulación y análisis del instrumento investigativo, donde se constató que la falta de diseños innovadores es el factor relevante que ha permitido la débil participación en el mercado, además de otros factores. Información relevante para afianzar con certeza la propuesta, la cual contiene, su visión, misión de la empresa, se ha realizado el diseño de un logotipo, el cual representara la identidad de esta nueva alternativa empresarial, es decir que ellos sean reconocidos a través de esta herramienta publicitaria. Se realizó una proyección de gastos e inversión, en la cual se demuestra la producción actual y la que se conseguirá con esta propuesta. Después de todo lo antes planteado esperamos que el trabajo cubra con las expectativas de culminación para la obtención del título de tercer nivel

    Selective hydration of nitriles to amides promoted by an Os-NHC catalyst: Formation and X-ray characterization of κ2-amidate intermediates

    No full text
    The complex [Os(η 6-p-cymene)(OH)IPr]OTf (1; IPr = 1,3-bis(2,6-diisopropylphenyl)imidazolylidene; OTf = CF 3SO 3) reacts with benzonitrile and acetonitrile to afford the κ 2-amidate derivatives [Os(η 6-p-cymene) {κ 2O,N-NHC(O)R}IPr]OTf (R = Ph (2), CH 3 (3)). Their formation has been investigated by DFT calculations (B3PWP1), starting from the model intermediate [Os(η 6-benzene)(OH)(CH 3CN)IMe] + (IMe = 1,3-bis(2,6-dimethylphenyl)imidazolylidene). Complex 2 has been characterized by X-ray diffraction analysis. In the presence of water, the κ 2-amidate species release the corresponding amides and regenerate 1. In agreement with this, complex 1 has been found to be an efficient catalyst for the selective hydration of a wide range of aromatic and aliphatic nitriles to amides, including substituted benzonitriles, cyanopyridines, acetonitrile, and 2-(4-isobutylphenyl)propionitrile among others. The mechanism of the catalysis is also discussed. © 2012 American Chemical Society.Financial support from the MEC of Spain (Project numbers CTQ2011-23459 and CTQ2010-14796 and Consolider Ingenio 2010 (CSD2007-00006)) and the Diputación General de Aragón (E35) is acknowledged.Peer Reviewe

    N–H and C–H Bond Activations of an Isoindoline Promoted by Iridium- and Osmium-Polyhydride Complexes: A Noninnocent Bridge Ligand for Acceptorless and Base-Free Dehydrogenation of Secondary Alcohols

    No full text
    The elusive C–H bond activation of an organic fragment contained in many biologically active molecules and the use of the resulting noninnocent ligand in bimetallic catalysis applied to the acceptorless and base-free dehydrogenation of secondary alcohols has been performed by using the polyhydrides IrH5(PiPr3)2 (1) and OsH6(PiPr3)2 (2). Complex 1 activates the N–H bond of 1,3-bis(6′-methylpyridyl-2′-imino)isoindoline (HBMePHI) to give the mononuclear complex IrH2{κ2-Npy,Nimine(BMePHI)}(PiPr3)2 (3). Both 1 and 2 activate the C(sp2)–H bond at position 4 of the core isoindoline of the BMePHI ligand of 3. The reactions lead to the homobinuclear complex (PiPr3)2H2Ir{μ-(κ2-Npy,Nimine-BMePI-κ2-Nimine,C4iso)}IrH2(PiPr3)2 (4) and the heterobinuclear compound (PiPr3)2H2Ir{μ-(κ2-Npy,Nimine-BMePI-κ2-Nimine,C4iso)}OsH3(PiPr3)2 (5), respectively. The metalated carbon atom of 4 and 5 has a marked nucleophilic character. Thus, it adds the proton of alcohols to afford the respective cations [(PiPr3)2H2Ir{μ-(κ2-Npy,Nimine-BMePHI-κ2-Npy,Nimine)}IrH2(PiPr3)2]+ (6) and [(PiPr3)2H2Ir{μ-(κ2-Npy,Nimine-BMePHI-κ2-Npy,Nimine)}OsH3(PiPr3)2]+ (7), and the corresponding alkoxide. The mononuclear complex 3 and the binuclear compounds 4 and 5 are efficient catalysts for the acceptorless and base-free dehydrogenation of secondary alcohols. The binuclear complexes 4 and 5 are significantly more active than 3. The catalytic synergism is a consequence of the mutual electronic influence of the metals through the bridge. X-ray diffraction analysis data of the structures of 3–5 and the reactivity of 4 and 5 support a noninnocent character of the bridging ligand.Financial support from the MINECO of Spain (Projects CTQ2017-82935-P (AEI/FEDER, UE) and RED2018-102387-T), Gobierno de Aragón (Group E06_20R and project LMP148_18), FEDER, and the European Social Fund is acknowledged. A.I.N. thanks the MINECO for his predoctoral fellowship.Peer reviewe

    Dicationic Alkylidene−, Olefin−, and Alkoxyalkenylcarbene−Osmium Complexes Stabilized by a NHC Ligand

    No full text
    7 páginas, 3 figuras, 5 esquemas.Complex [Os(═CHPh)(CH3CN)4(IPr)](OTf)2 (1) (IPr = 1,3-bis(2,6-diisopropylphenyl)imidazolylidene; OTf = CF3SO3) exchanges the alkylidene group with propylene to give styrene and [Os(═CHCH3)(CH3CN)4(IPr)](OTf)2 (2). The reaction of 1 with ethylene leads to [Os(η2-CH2═CH2)(CH3CN)4(IPr)](OTf)2 (3) via the propylene intermediate [Os(η2-CH2═CHCH3)(CH3CN)4(IPr)](OTf)2 (4). Acetonitrile displaces the olefin ligand of both 3 and 4 to generate the pentakis (solvento) derivative [Os(CH3CN)5(IPr)](OTf)2 (5). In 2-propanol and methanol, complex 5 reacts with 1,1-diphenyl-2-propyn-1-ol and 2-methyl-3-butyn-2-ol to yield the corresponding alkoxyalkenylcarbene compounds [Os{═C(OR)CH═CR′2}(CH3CN)4(IPr)](OTf)2 (R = CH(CH3)2; R′ = Ph (6), CH3 (7); R = CH3; R′ = Ph (8), CH3 (9)). The X-ray structures of 4, 5, and 6 are also reported.Peer reviewe
    corecore