Search Results - "Ovalle, E."

Traveling Ionospheric Disturbances Observed Over South America After Lithospheric Events: 2010–2020 by Bravo, M., Benavente, R., Foppiano, A., Urra, B., Ovalle, E.

“…Here, the ionospheric response to earthquakes, earthquakes inducing tsunamis, and volcanic eruptions are presented as a contribution to the so‐called…”
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Quantum Mechanics/Molecular Mechanics Study on the Oxygen Binding and Substrate Hydroxylation Step in AlkB Repair Enzymes by Quesne, Matthew G., Latifi, Reza, Gonzalez-Ovalle, Luis E., Kumar, Devesh, de Visser, Sam P.

“…AlkB repair enzymes are important nonheme iron enzymes that catalyse the demethylation of alkylated DNA bases in humans, which is a vital reaction in the body…”
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Myo1g is an active player in maintaining cell stiffness in B-lymphocytes by Lopez-Ortega, O, Ovalle-Garcia, E, Ortega-Blake, I, Antillon, A, Chavez-Munguia, B, Patino-Lopez, G, Fragoso-Soriano, R, Santos-Argumedo, L

“…B‐lymphocytes are migrating cells that specialize in antigen presentation, antibody secretion, and endocytosis; these processes implicate the modulation of…”
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First Report of an Eclipse From Chilean Ionosonde Observations: Comparison With Total Electron Content Estimations and the Modeled Maximum Electron Concentration and Its Height by Bravo, M., Martínez‐Ledesma, M., Foppiano, A., Urra, B., Ovalle, E., Villalobos, C., Souza, J., Carrasco, E., Muñoz, P. R., Tamblay, L., Vega‐Jorquera, P., Marín, J., Pacheco, R., Rojo, E., Leiva, R., Stepanova, M.

“…The ionospheric responses to the total solar eclipse on 2 July 2019 over low latitudes in southern South America are presented. Ionosonde observations were…”
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Nanomechanical-ferroelastics behavior, and the low-temperature ferroelectric manifestation of BiMnO3 thin films by Umoh, G V, Gómez-Ovalle, A E, Cruz, M P, Leal-Pérez, J E, Obot, Okure U, Berrio, Héctor Urzola, Herrera-Basurto, Raúl, Mercader-Trejo, F, Hurtado-Macias, A

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High-temperature tribology of Hf doped c-Al0.64Ti0.36N cathodic arc PVD coatings deposited on M2 tool steel by Mondragón-Rodríguez, G.C., Hernández-Mendoza, J.L., Gómez-Ovalle, A.E., González-Carmona, J.M., Ortega-Portilla, C., Camacho, N., Hurtado-Macías, A., Espinosa-Arbeláez, D.G., Alvarado-Orozco, J.M.

“…Hard coatings are continuously improved due to the industrial needs and urgency to reduce the environmental impact of manufacturing processes. For these…”
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Tailoring the chemical composition and microstructure of CrxN deposited by HiPIMS through duty-cycle modifications by Cedeño-Vente, M.L., Mondragón-Rodríguez, G.C., Camacho, N., Gómez-Ovalle, A.E., Gonzalez-Carmona, J.M., Alvarado-Orozco, J.M., Espinosa-Arbelaez, D.G.

“…The development of homogeneous, dense, and smooth hard coatings is a challenging task, and that is why the high power impulse magnetron sputtering (HiPIMS)…”
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Experimental-numerical failure analysis of the c-Al0.66Ti0.34N-M2 steel system applying instrumented indentation and extended finite element method by Gómez-Ovalle, A.E., Torres, M., Jimenez, S.M.A., Alvarado-Orozco, J.M., Espinosa-Arbeláez, D.G., Gonzalez-Carmona, J.M., Zárate-Medina, J., Mondragón-Rodríguez, G.C.

“…An experimental-numerical methodology for failure analysis of the c-Al0.66Ti0.34N/Interface/M2 steel coating system is proposed here. This c-Al0.66Ti0.34N…”
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Ionospheric response modeling under eclipse conditions: Evaluation of 14 December 2020, total solar eclipse prediction over the South American sector by Bravo, M. A., Molina, M. G., Martínez-Ledesma, M., de Haro Barbás, B., Urra, B., Elías, A., Souza, J., Villalobos, C., Namour, J. H., Ovalle, E., Venchiarutti, J. V., Blunier, S., Valdés-Abreu, J. C., Guillermo, E., Rojo, E., de Pasquale, L., Carrasco, E., Leiva, R., Castillo Rivera, C., Foppiano, A., Milla, M., Muñoz, P. R., Stepanova, M., Valdivia, J. A., Cabrera, M.

“…In this work, we evaluate the SUPIM-INPE model prediction of the 14 December 2020, total solar eclipse over the South American continent. We compare the…”
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Ionospheric characteristics prior to the greatest earthquake in recorded history by Villalobos, C.U., Bravo, M.A., Ovalle, E.M., Foppiano, A.J.

“…Although several reports on the variations of some radio observed ionospheric properties prior to the very large Chile earthquakes of 21–22 May 1960 have been…”
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Intermittency on simultaneous observations of riometer at several Antarctic locations by Ovalle, E.M., Foppiano, A.J., Stepanova, M.V., Weatherwax, A.T.

“…It is well known that auroral radio wave absorption, as measured by riometers, consists of periods of relative quiescence which are interrupted by short bursts…”
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Long-term trends in foF2: A comparison of various methods by Laštovička, J., Mikhailov, A.V., Ulich, T., Bremer, J., Elias, A.G., Ortiz de Adler, N., Jara, V., Abarca del Rio, R., Foppiano, A.J., Ovalle, E., Danilov, A.D.

“…Results of various authors on long-term trends in foF2, which is equivalent to the maximum electron density in the ionosphere, and their interpretation do not…”
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Back Cover: Quantum Mechanics/Molecular Mechanics Study on the Oxygen Binding and Substrate Hydroxylation Step in AlkB Repair Enzymes (Chem. Eur. J. 2/2014) by Quesne, Matthew G., Latifi, Reza, Gonzalez-Ovalle, Luis E., Kumar, Devesh, de Visser, Sam P.

“…AlkB repair enzymes are important nonheme iron enzymes that catalyse the demethylation of alkylated DNA bases in humans, which is a vital reaction in the body…”
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Axial and equatorial ligand effects on biomimetic cysteine dioxygenase model complexes by Gonzalez-Ovalle, Luis E, Quesne, Matthew G, Kumar, Devesh, Goldberg, David P, de Visser, Sam P

“…Density functional theory (DFT) calculations are presented on biomimetic model complexes of cysteine dioxygenase and focus on the effect of axial and…”
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Barriers to acceptance of personal digital assistants for HIV/AIDS data collection in Angola by Cheng, Karen G, Ernesto, Francisco, Ovalle-Bahamón, Ricardo E, Truong, Khai N

“…Highlights ► We asked Angolans to reflect on storing their HIV risk data on handheld computers. ► Concerns about outsiders, longevity, development, and social…”
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The role of wave propagation in hydrocyclone operations II: Wave propagation in the air–water interface of a conical hydrocyclone by Ovalle, E., Concha, F.

“…The air-core plays an important role in the operation of a conical hydrocyclone. In the apex, the air-core increases in diameter with the possibility of…”
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HIV/AIDS Behavioral Surveillance among Angolan Military Men by Bing, Eric G., Ortiz, Daniel J., Ovalle-Bahamón, Ricardo E., Cheng, Karen G., Huang, Fannie H., Ernesto, Francisco, Duan, Naihua

“…To assess HIV-related risk behavior among military men in a post-conflict sub-Saharan African country with low HIV prevalence this study evaluated sexual risk…”
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Hegemony of economic values in conducting clinical trials with a placebo‐control group to investigate the treatment of periodontitis in lower‐middle‐income countries by Ardila, Carlos M., Ovalle, Constanza E.

“…This article analyzes the bioethical implications of using a control/placebo group when conducting clinical trials (CTs) investigating the treatment of…”
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Evaluation of a Prevention Intervention to Reduce HIV Risk among Angolan Soldiers by Bing, Eric G., Cheng, Karen G., Ortiz, Daniel J., Ovalle-Bahamón, Ricardo E., Ernesto, Francisco, Weiss, Robert E., Boyer, Cherrie B.

“…We developed and evaluated a military-focused HIV prevention intervention to enhance HIV risk-reduction knowledge, motivation, and behaviors among Angolan…”
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Application of a transmission line model to evaluate the influence of structural defects on the corrosion behavior of arc-PVD CrN coatings by Cedeño-Vente, M.L., Manríquez, J., Mondragón-Rodríguez, G.C., Camacho, N., Gómez-Ovalle, A.E., Gonzalez-Carmona, J.M., Alvarado-Orozco, J.M., Espinosa-Arbelaez, D.G.

“…The effect of bias voltages (40 V, 80 V, and 40/60/80 V) on microstructure and electrochemical properties of arc-PVD CrN coatings were evaluated. Increasing…”
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