Search Results - "Vidal, R. A."

Synthesis of hydrogen peroxide in water ice by ion irradiation by Loeffler, M.J., Raut, U., Vidal, R.A., Baragiola, R.A., Carlson, R.W.

“…We present infrared absorption studies on the effects of 50–100 keV Ar + and 100 keV H + ion irradiation of water ice films at 20–120 K. The results support…”
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Morphology and thermal stability of AlF3 thin films grown on Cu(100) by Ruano, G., Moreno-López, J.C., Passeggi, M.C.G., Vidal, R.A., Ferrón, J., Niño, M.Á., Miranda, R., de Miguel, J.J.

“…The growth of ultrathin epitaxial layers of aluminum fluoride on Cu(100) has been studied by a combination of surface science techniques. Deposition at room…”
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Surface characterization of nitride structures on Cu(0 0 1) formed by implantation of N ions: An AES, XPS and LEIS study by Cristina, L.J., Vidal, R.A., Ferrón, J.

“…By means of Auger electron spectroscopy (AES), X-ray photoelectron spectroscopy (XPS), and low energy ion spectrometry (LEIS) techniques we studied the process…”
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Radiolysis of water ice in the outer solar system: Sputtering and trapping of radiation products by Bahr, D. A., Famá, M., Vidal, R. A., Baragiola, R. A.

“…We performed quantitative laboratory radiolysis experiments on cubic water ice between 40 and 120 K, with 200 keV protons. We measured sputtering of atoms and…”
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Support vector machines framework for linear signal processing by Rojo-Álvarez, J.L., Camps-Valls, G., Martínez-Ramón, M., Soria-Olivas, E., Navia-Vázquez, A., Figueiras-Vidal, A.R.

“…This paper presents a support vector machines (SVM) framework to deal with linear signal processing (LSP) problems. The approach relies on three basic steps…”
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Cross-resistance of Bidens subalternans to acetolactate synthase inhibitors in Brazil by LAMEGO, F.P, VIDAL, R.A, BURGOS, N.R, FEDERIZZI, L.C

“…Weeds resistant (R) to herbicides are widespread worldwide. Bidens subalternans is one of the most troublesome weeds in conventional soyabean fields in Brazil,…”
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Multiple resistance of acetolactate synthase and protoporphyrinogen oxidase inhibitors in Euphorbia heterophylla biotypes by Trezzi, M.M, Felippi, C.L, Mattei, D, Silva, H.L, Nunes, A.L, Debastiani, C, Vidal, R.A, Marques, A

“…Resistance to acetolactate synthase (ALS)-inhibiting herbicides in Brazil has been documented for six species. The probability to select biotypes of Euphorbia…”
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Oxygen on Ganymede: Laboratory Studies by Vidal, R. A., Bahr, D., Baragiola, R. A., Peters, M.

“…To test proposals for the origin of oxygen absorption bands in the visible reflectance spectrum of Ganymede, the reflectance of condensed films of pure oxygen…”
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Impact of Conyza bonariensis density and establishment period on soyabean grain yield, yield components and economic threshold by Trezzi, M M, Vidal, R A, Patel, F, Miotto, E, Jr, Debastiani, F, Balbinot, A A, Jr, Mosquen, R, Ghersa, Claudio

“…Conyza spp. have become a major weed around the world, mainly because of weed resistance issues. The objective of this work was to test the hypothesis that the…”
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Angular dependence of the sputtering yield of water ice by 100 keV proton bombardment by Vidal, R.A., Teolis, B.D., Baragiola, R.A.

“…We measured the total sputtering yield of amorphous water ice for 100 keV H + as a function of the projectile incidence angle, and the angular distribution of…”
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Mean-square performance of a convex combination of two adaptive filters by Arenas-Garcia, J., Figueiras-Vidal, A.R., Sayed, A.H.

“…Combination approaches provide an interesting way to improve adaptive filter performance. In this paper, we study the mean-square performance of a convex…”
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Influence of Density and Development Stage of Ryegrass on Glyphosate Effectiveness by FIPKE, M.V., VIDAL, R.A.

“…ABSTRACT : Glyphosate is one of the main herbicides used to control ryegrass. The objective of this research was to evaluated whether the glyphosate…”
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Role of HOPG density of empty electronic states above vacuum on electron emission spectra induced by ions and UV photons by Ferrón, J., Vidal, R.A., Bajales, N., Cristina, L., Baragiola, R.A.

“…We present results of secondary electron emission (SEE) induced by UV photons and low energy He ions interacting with a pristine and ion damaged surface of…”
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Growth, thermal desorption and low dose ion bombardment damage of C 60 films deposited on Cu(111) by Bonetto, F, Vidal, R A, Riascos, V Quintero, Bonin, C J, Ferrón, J

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Bioassay for Determining Persistence of the Herbicide Saflufenacil in an Oxisol by DIESEL, F., TREZZI, M.M., VIDAL, R.A., BARANCELLI, M.V.J., MIZERSKI, P.H.F.

“…Persistence of an herbicide is defined as the ability to maintain the integrity of its molecule and chemical, physical, and phytotoxic properties in the…”
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Sorptive behavior of sorgoleone in Ultisol in two solvent systems and determination of its lipophilicity by Trezzi, M.M, Vidal, R.A, Dick, D.P, Peralba, M.C.R, Kruse, N.D

“…Sorgoleone (SGL) exuded by sorghum roots inhibits the development of some weeds. Due to its high hydrophobicity, it is expected that SGL presents low soil…”
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Activity of Antioxidant Enzymes in Euphorbia heterophylla Biotypes and their Relation to Cross Resistance to ALS and Protox Inhibitors by XAVIER, E., TREZZI, M.M., OLIVEIRA, M.C., VIDAL, R.A., BRUSAMARELLO, A.P.

“…The characteristics of multiple resistance in Euphorbia heterophylla biotypes to herbicides that are inhibitors of ALS (Acetolactate synthase) and PPO…”
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Evolution of Natural Resistance to Glyphosate in Morning Glory Populations by PAZUCH, D., TREZZI, M.M., GUIMARÃES, A.C.D., BARANCELLI, M.V.J., PASINI, R., VIDAL, R.A.

“…ABSTRACT Tolerance, also referred to as natural resistance, is a feature that exists in the plant even before herbicide application in an area. I. grandifolia,…”
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Efficient block training of multilayer perceptrons by Navia-Vázquez, A, Figueiras-Vidal, A R

“…The attractive possibility of applying layerwise block training algorithms to multilayer perceptrons MLP, which offers initial advantages in computational…”
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Electron capture and loss in the scattering of H + from HOPG graphite by Vidal, R.A., Bonetto, F., Ferrón, J., Romero, M.A., García, Evelina A., Goldberg, E.C.

“…In this paper we report measurements of the positive (H +) and negative (H −) ion fractions after H + scattering from a highly oriented pyrolytic graphite…”
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