Search Results - "Mercader, R."

Radiological baseline, mineralogy and Fe oxides of the eastern coast of the Province of Buenos Aires by Montes, M. L., Carretero, S.C., Galluzzi, Á. García, Mercader, R. C., Kruse, E., Taylor, M. A.

“…Buenos Aires Province coastline is a populated area visited yearly by millions of tourists. However, the radioactivity baseline data of the sand has not been…”
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Estimating the Influence of Population Density and Dispersal Behavior on the Ability to Detect and Monitor Agrilus planipennis (Coleoptera: Buprestidae) Populations by Mercader, R. J, Siegert, N. W, McCullough, D. G

“…Emerald ash borer, Agrilus planipennis Fairmaire (Coleoptera: Buprestidae), a phloemfeeding pest of ash (Fraxinus spp.) trees native to Asia, was first…”
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Natural and anthropogenic gamma-ray emitters and iron-bearing compounds distribution in peatlands of the southern Espinhaço mountain chain, Brazil by Montes, M. L., Mercader, R. C., Barral, U. M., Silva, A. C., Fabris, J. D., Taylor, M. A.

“…To help understand the dynamics of peatlands forming on the Southern Serra do Espinhaço, Brazil, the occurring natural ( 226 Ra, 232 Th, 40 K) and…”
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Approximate total Fe content determined by Mössbauer spectrometry: Application to determine the correlation between gamma-ray-emitter activities and total content of Fe phases in soils of the Province of Buenos Aires, Argentina by Montes, M.L., Rivas, P.C., Taylor, M.A., Mercader, R.C.

“…Pearson correlation coefficients between 40K, 226Ra and 232Th activities and the total Fe phase fractions yielded by Mössbauer spectroscopy have been…”
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Assessment of natural radioactivity levels and their relationship with soil characteristics in undisturbed soils of the northeast of Buenos Aires province, Argentina by Montes, M.L., Mercader, R.C., Taylor, M.A., Runco, J., Desimoni, J.

“…Surface and depth profile concentrations (down to 50 cm) of 232Th chain, 226Ra, and 40K radionuclides were determined in undisturbed coastal and inland soils…”
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Hybridization leads to host-use divergence in a polyphagous butterfly sibling species pair by Mercader, R. J, Aardema, M. L, Scriber, J. M

“…Climate warming has lead to increased genetic introgression across a narrow hybrid zone separating the eastern and Canadian tiger swallowtails (Papilio glaucus…”
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Bi-Magnetic Iron(III) Oxide Nanocrystals Embedded in MCM-41 Mesoporous Silica by Stewart, S. J, Cabrera, A. F, Fellenz, N. A, Mercader, R. C, Bengoa, J. F, Marchetti, S. G

“…This is a study on the magnetism of a Fe2O3@MCM-41 composite made up of iron­(III) oxide nanocrystals of average length size of 4 nm embedded in the channels…”
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Spectroscopic characterization of mixed cation diphosphates of the type MIFeIIIP2O7 (with MI=Li, Na, K, Rb, Cs, Ag) by Parajón-Costa, B.S., Mercader, R.C., Baran, E.J.

“…The mixed cation diphosphates of composition MIFeIIIP2O7 have been prepared using the so called co-precipitation method starting with Fe(III) and M(I) nitrate…”
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Diversification of host use in two polyphagous butterflies: differences in oviposition specificity or host rank hierarchy by Mercader, R.J, Scriber, J.M

“…Novel host usage may represent an initial step towards diversification or radiation onto novel hosts within an evolutionary lineage, particularly if a shift in…”
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Asymmetrical thermal constraints on the parapatric species boundaries of two widespread generalist butterflies by MERCADER, R.J, SCRIBER, J.M

“…1. The sibling species Papilio glaucus and Papilio canadensis meet in a narrow hybrid zone believed to be maintained by temperature thresholds acting…”
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Microscopic spheroidal particles obtained by laser cutting by CABANILLAS, E. D, CREUS, M. F, MERCADER, R. C

“…In this work we study the characteristics of the particles ejected from the cutting zone of a SAE 1010 steel while using a CO2 gaseous laser with the purpose…”
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The Morin transition in nanostructured pseudocubic hematite: Effect of the intercrystallite magnetic exchange by Bengoa, J.F., Alvarez, A.M., Bianchi, A.E., Punte, G., Vandenberghe, R.E., Mercader, R.C., Marchetti, S.G.

“…The Morin transition in α-Fe 2O 3 particles with homogeneous pseudocubic morphology of about 1.8 μm side has been studied by different techniques. The…”
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Mechanochemical activation of a titanium–magnetite mixture: Mössbauer spectroscopy study by Cristóbal, A.A., Aglietti, E.F., López, J.M. Porto, Sives, F.R., Mercader, R.C.

“…Mechanochemical activation has become a valuable tool in the design and synthesis of novel materials, due to the increased reactivity of activated solids, and…”
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Effects of milling-induced disorder on the lattice parameters and magnetic properties of hematite by Stewart, S.J., Borzi, R.A., Cabanillas, E.D., Punte, G., Mercader, R.C.

“…A ball-milling treatment in air for 30 min is enough to reduce anhydrous bulk hematite (α-Fe 2O 3) grains to nanometric sizes. For milling times, t m, of 15,…”
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Magnetic behavior of nanosized cupric oxide by Borzi, R.A, Stewart, S.J, Mercader, R.C, Punte, G, Garcia, F

“…The effect of the particle size and ball-mill-induced defects on the magnetic properties of cupric oxide has been assessed by magnetic measurements…”
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Cationic ordering in Sr2FeMoO6 prepared by a new chemical route by JACOBO, S. E, DUHALDE, S, MERCADER, R. C

“…We report a novel technique to produce ultra-fine crystallites ( < 50 nm) of Sr2FeMo06 at relatively low temperatures. Powders that were fired at 850 deg C for…”
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Formation of carbides by electro-discharge machining of alpha iron by Cabanillas, E.D., Desimoni, J., Punte, G., Mercader, R.C.

“…The surface of pure iron sheets have been submitted to spark-planing erosion using kerosene as dielectric under a wide range of machining conditions: discharge…”
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Magnetic interactions in hematite small particles obtained by ball milling by Borzi, R.A, Stewart, S.J, Punte, G, Mercader, R.C, Vasquez-Mansilla, M, Zysler, R.D, Cabanillas, E.D

“…Pure hematite particles of an average size of 14 nm were obtained after ball milling α-Fe 2O 3 in a vertical vibrating mixer mill for 10 h. Mössbauer and…”
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Ftir and mössbauer investigation of a substituted palygorskite: Silicate with a channel structure by Augsburger, M.S., Strasser, E., Perino, E., Mercader, R.C., Pedregosa, J.C.

“…Crystal data and spectroscopic studies of a silicate with a channel structure were realized. The substituted palygorskite from Las Quijadas (San Luis),…”
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Activity of conventional and reduced-risk insecticides for protection of grapevines against the rose chafer, Macrodactylus subspinosus (Coleoptera: Scarabaeidae) by Isaacs, R., Mercader, R. J., Wise, J. C.

“…:  Bioassays were conducted to compare the residual toxicity and leaf protection activity of conventional broad‐spectrum and reduced‐risk insecticides against…”
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