Indexados Scopus: Envíos recientes

Mostrando ítems 881-900 de 1632

    • Grain Size Reduction Effect on Structural and Magnetic Properties in La1-xSrxMnO3 (x = 0.3 y 0.4) by Mechanical Ball Milling 

      Campillo G.; Osorio J.; Arnache O.; Gil A.; Beltrán J.J.; Dorkis L.
      We have investigated the magnetic, structural and morphological properties of ferromagnetic phases of manganite La1-xSrxMnO3 with x = 0.3 (LSMO-30) and x = 0.4 (LSMO-40) prepared by solid state reaction method, and then ...

    • Green synthesis of magnetic nanoparticles using leaf extracts of Aloe vera and Kalanchoe daigremontiana to remove divalent mercury from natural waters 

      Morales G.; Campillo G.; Vélez E.; Osorio J.; Urquijo J.; Velásquez Á.A.
      In this study, magnetic nanoparticles of magnetite were prepared by an eco-friendly method using aqueous leaf extracts of Aloe vera and Kalanchoe daigremontiana. These vegetal extracts have suitable characteristics such ...

    • Evaluation of climate change adaptation in the energy generation sector in Colombia via a composite index — A monitoring tool for government policies and actions 

      Londoño Pineda A.A.; Vélez Rojas (Oscar) O.A.; Jonathan M.P.; Sujitha S.B.
      The aim of the article is to evaluate the national adaptation to climate change in the energy generation sector in Colombia via a composite index. To build an index, a framework by stages is used, which includes the ...

    • Extension of the Systemic Entrepreneurship Intention Model in university students 

      Díez-Echavarría L.; Arias A.V.; Bermúdez-Hernández J.; Pérez F.O.M.; Marín M.L.U.; Velásquez J.A.T.
      The extension of the Systemic Entrepreneurship Intention Model, to identify and understand the factors, and their relations, that promote university students' entrepreneurial intention, was proposed in this paper. That is, ...

    • Experimental study of turbulent syngas/methane/air flames at a sub-atmospheric condition 

      Cardona A.; García A.; Cano F.; Arrieta C.E.; Yepes H.A.; Amell A.
      The aim of this work was determined turbulent burning velocities of air-syngas-methane flames at sub-atmospheric conditions using the angle method and Schlieren imaging. We analyzed a high hydrogen content syngas that can ...

    • Effect of the hydrostatic pressure and shell's Al composition in the intraband absorption coefficient for core/shell spherical GaAs/AlxGa1?xAs quantum dots 

      Rodríguez-Magdaleno K.A.; Mora-Ramos M.E.; Pérez-Álvarez R.; Martínez-Orozco J.C.
      In this paper we theoretically investigate the role of hydrostatic pressure by analyzing its influence on potential barrier's height in GaAs/AlxGa1?xAs core/shell spherical quantum dots. The values of hydrostatic pressure ...

    • Effect of pH on Dimethylamine Borane Reduced Electroless Nickel Deposits on AISI/SAE 1045 Steel Surface 

      Guerra L.; Echeverría F.; Correa E.
      Abstract: Electroless Ni B coatings using DMAB-reduced plating baths at different pH conditions were formed on AISI/SAE 1045 carbon steel. Substrates were grit-blasted with alumina, generating a rough surface suitable for ...

    • Effect of population dynamics and land use on the contribution of sediments to reservoirs for hydropower generation 

      Botero B.A.; Parra J.C.; Otálvaro M.
      Sediment load in reservoirs causes loss of reservoir storage and reduces its usable life. There are management strategies focused in sediment removal or reducing trapping in reservoirs, and there are basin management ...

    • Effect of Sparse Doping in Barriers on the Energy Structure of Center-Delta-Doped QW 

      Tulupenko V.; Akimov V.; Demediuk R.; Duque C.; Fomina O.; Sushchenko D.
      Effect of sparse (presumably background) shallow donor impurity on the energy structure of SiGe/Si quantum well structure delta-doped to the center of the well is studied numerically. The method includes calculation of ...

    • Effect of Acute Physical Exercise on Executive Functions and Emotional Recognition: Analysis of Moderate to High Intensity in Young Adults 

      Aguirre-Loaiza H.; Arenas J.; Arias I.; Franco-Jímenez A.; Barbosa-Granados S.; Ramos-Bermúdez S.; Ayala-Zuluaga F.; Núñez C.; García-Mas A.
      Physical exercise (PE) is associated with cognitive changes and brain function. However, it is required to clarify the effect of PE in different intensities, population groups conditions and the EF duration over different ...

    • Decision making and criminal responsibility regarding money laundering in Ecuador [Toma de decisiones y responsabilidad penal frente al lavado de activos en Ecuador] 

      Ponce Andrade A.L.; Bustamante P.P.; Villagómez Cabezas R.Í.
      Money laundering is a transnational criminal phenomenon that affects countries within a globalized economy. In Ecuador, when the Integral Organic Code (COIP) comes into force in 2014, this conduct is sanctioned more severely ...

    • Design and Construction of a Muon Detector Prototype for Study the Galeras Volcano Internal Structure 

      Guerrero I.D.; Cabrera D.F.; Paz J.C.; Estrada J.D.; Villota C.A.; Velasco E.A.; Fajardo F.E.; Rodriguez O.; Rodriguez J.; Arturo D.; Dueñas D.; Torres D.; Ramirez J.; Revelo J.; Ortega G.; Benavides D.; Betancourt J.; Tapia A.; Martinez-Caicedo D.A.
      Muon tomography is a technique based on the observation of the absorption of muons in matter, as the ordinary radiography does using X-rays. The interaction of cosmic rays with the atmosphere produce Extensive Air Showers, ...

    • Density functional theory studies of the adsorption of Cr (VI) on Fe-(hydr) oxide: Gibbs free energies and pH effect 

      Acelas N.Y.; Flórez E.
      Adsorption of chromium (VI) on iron oxides is a potential removal method from industrial wastewater. Cr (VI) is a toxic specie for human health due to its easy mobility in the environment. Currently, US EPA drinking water ...

    • Detecting ultra-fast and near-infrared pulses based on two-photon absorption in multiple quantum wells 

      Álvarez Ocampo C.A.; Rodríguez C.A.; Herrera R.A.
      A theoretical framework and the computational infrastructure for optical characterization of a waveguide (WG) photodetector (PD) are presented based on multiples quantum well (MQW) with a rib structure that is able to ...

    • Corrigendum: An interferon gamma release assay specific for Histoplasma capsulatum to detect asymptomatic infected individuals: A proof of concept study 

      Rubio-Carrasquilla M.; Santa C.D.; Rendón J.P.; Botero-Garcés J.; Guimarães A.J.; Moreno E.; Cano L.E.
      [No abstract available]

    • Data-driven estimation of the invisible energy of cosmic ray showers with the Pierre Auger Observatory 

      Aab A.; Abreu P.; Aglietta M.; Albuquerque I.F.M.; Albury J.M.; Allekotte I.; Almela A.; Alvarez Castillo J.; Alvarez-Muñiz J.; Anastasi G.A.; Anchordoqui L.; Andrada B.; Andringa S.; Aramo C.; Asorey H.; Assis P.; Avila G.; Badescu A.M.; Bakalova A.; Balaceanu A.; Barbato F.; Barreira Luz R.J.; Baur S.; Becker K.H.; Bellido J.A.; Berat C.; Bertaina M.E.; Bertou X.; Biermann P.L.; Biteau J.; Blaess S.G.; Blanco A.; Blazek J.; Bleve C.; Bohá?ová M.; Boncioli D.; Bonifazi C.; Borodai N.; Botti A.M.; Brack J.; Bretz T.; Bridgeman A.; Briechle F.L.; Buchholz P.; Bueno A.; Buitink S.; Buscemi M.; Caballero-Mora K.S.; Caccianiga L.; Calcagni L.; Cancio A.; Canfora F.; Carceller J.M.; Caruso R.; Castellina A.; Catalani F.; Cataldi G.; Cazon L.; Cerda M.; Chinellato J.A.; Chudoba J.; Chytka L.; Clay R.W.; Cobos Cerutti A.C.; Colalillo R.; Coleman A.; Coluccia M.R.; Conceição R.; Condorelli A.; Consolati G.; Contreras F.; Convenga F.; Cooper M.J.; Coutu S.; Covault C.E.; Daniel B.; Dasso S.; Daumiller K.; Dawson B.R.; Day J.A.; De Almeida R.M.; De Jong S.J.; De Mauro G.; De Mello Neto J.R.T.; De Mitri I.; De Oliveira J.; De Oliveira Salles F.O.; De Souza V.; Debatin J.; Del Río M.; Deligny O.; Dhital N.; Díaz Castro M.L.; Diogo F.; Dobrigkeit C.; D'Olivo J.C.; Dorosti Q.; Dos Anjos R.C.; Dova M.T.; Dundovic A.; Ebr J.; Engel R.; Erdmann M.; Escobar C.O.; Etchegoyen A.; Falcke H.; Farmer J.; Farrar G.; Fauth A.C.; Fazzini N.; Feldbusch F.; Fenu F.; Ferreyro L.P.; Figueira J.M.; Filip?i? A.; Freire M.M.; Fujii T.; Fuster A.; García B.; Gemmeke H.; Gherghel-Lascu A.; Ghia P.L.; Giaccari U.; Giammarchi M.; Giller M.; G?as D.; Glombitza J.; Gobbi F.; Golup G.; Gómez Berisso M.; Gómez Vitale P.F.; Gongora J.P.; González N.; Goos I.; Góra D.; Gorgi A.; Gottowik M.; Grubb T.D.; Guarino F.; Guedes G.P.; Guido E.; Halliday R.; Hampel M.R.; Hansen P.; Harari D.; Harrison T.A.; Harvey V.M.; Haungs A.; Hebbeker T.; Heck D.; Heimann P.; Hill G.C.; Hojvat C.; Holt E.M.; Homola P.; Hörandel J.R.; Horvath P.; Hrabovský M.; Huege T.; Hulsman J.; Insolia A.; Isar P.G.; Jandt I.; Johnsen J.A.; Josebachuili M.; Jurysek J.; Kääpä A.; Kampert K.H.; Keilhauer B.; Kemmerich N.; Kemp J.; Klages H.O.; Kleifges M.; Kleinfeller J.; Krause R.; Kuempel D.; Kukec Mezek G.; Kuotb Awad A.; Lago B.L.; Lahurd D.; Lang R.G.; Legumina R.; Leigui De Oliveira M.A.; Lenok V.; Letessier-Selvon A.; Lhenry-Yvon I.; Lippmann O.C.; Lo Presti D.; Lopes L.; López R.; López Casado A.; Lorek R.; Luce Q.; Lucero A.; Malacari M.; Mancarella G.; Mandat D.; Manning B.C.; Mantsch P.; Mariazzi A.G.; Mari? I.C.; Marsella G.; Martello D.; Martinez H.; Martínez Bravo O.; Mastrodicasa M.; Mathes H.J.; Mathys S.; Matthews J.; Matthiae G.; Mayotte E.; Mazur P.O.; Medina-Tanco G.; Melo D.; Menshikov A.; Merenda K.-D.; Michal S.; Micheletti M.I.; Middendorf L.; Miramonti L.; Mitrica B.; Mockler D.; Mollerach S.; Montanet F.; Morello C.; Morlino G.; Mostafá M.; Müller A.L.; Muller M.A.; Müller S.; Mussa R.; Nellen L.; Nguyen P.H.; Niculescu-Oglinzanu M.; Niechciol M.; Nitz D.; Nosek D.; Novotny V.; No ka L.; Nucita A.; Núñez L.A.; Olinto A.; Palatka M.; Pallotta J.; Panetta M.P.; Papenbreer P.; Parente G.; Parra A.; Pech M.; Pedreira F.; Pkala J.; Pelayo R.; Peña-Rodriguez J.; Pereira L.A.S.; Perlin M.; Perrone L.; Peters C.; Petrera S.; Phuntsok J.; Pierog T.; Pimenta M.; Pirronello V.; Platino M.; Poh J.; Pont B.; Porowski C.; Prado R.R.; Privitera P.; Prouza M.; Puyleart A.; Querchfeld S.; Quinn S.; Ramos-Pollan R.; Rautenberg J.; Ravignani D.; Reininghaus M.; Ridky J.; Riehn F.; Risse M.; Ristori P.; Rizi V.; Rodrigues De Carvalho W.; Rodriguez Rojo J.; Roncoroni M.J.; Roth M.; Roulet E.; Rovero A.C.; Ruehl P.; Saffi S.J.; Saftoiu A.; Salamida F.; Salazar H.; Salina G.; Sanabria Gomez J.D.; Sánchez F.; Santos E.M.; Santos E.; Sarazin F.; Sarmento R.; Sarmiento-Cano C.; Sato R.; Savina P.; Schauer M.; Scherini V.; Schieler H.; Schimassek M.; Schimp M.; Schlüter F.; Schmidt D.; Scholten O.; Schovánek P.; Schröder F.G.; Schröder S.; Schumacher J.; Sciutto S.J.; Scornavacche M.; Shellard R.C.; Sigl G.; Silli G.; Sima O.; mída R.; Snow G.R.; Sommers P.; Soriano J.F.; Souchard J.; Squartini R.; Stanca D.; Stani? S.; Stasielak J.; Stassi P.; Stolpovskiy M.; Streich A.; Suarez F.; Suárez-Durán M.; Sudholz T.; Suomijärvi T.; Supanitsky A.D.; upík J.; Szadkowski Z.; Taboada A.; Taborda O.A.; Tapia A.; Timmermans C.; Todero Peixoto C.J.; Tomé B.; Torralba Elipe G.; Travaini A.; Travnicek P.; Trini M.; Tueros M.; Ulrich R.; Unger M.; Urban M.; Valdés Galicia J.F.; Valiño I.; Valore L.; Van Bodegom P.; Van Den Berg A.M.; Van Vliet A.; Varela E.; Vargas Cárdenas B.; Veberi? D.; Ventura C.; Vergara Quispe I.D.; Verzi V.; Vicha J.; Villaseñor L.; Vink J.; Vorobiov S.; Wahlberg H.; Watson A.A.; Weber M.; Weindl A.; Wiede?ski M.; Wiencke L.; Wilczy?ski H.; Winchen T.; Wirtz M.; Wittkowski D.; Wundheiler B.; Yang L.; Yushkov A.; Zas E.; Zavrtanik D.; Zavrtanik M.; Zehrer L.; Zepeda A.; Zimmermann B.; Ziolkowski M.; Zong Z.; Zuccarello F.; The Pierre Auger Collaboration

    • Conocimientos Sobre La Explotación Sexual Comercial Asociada A Viajes Y Turismo En Estudiantes De Educación Superior 

      Santa-Alvarez J.; Perlaza-Lopera C.; Cano J.A.
      The commercial sexual exploitation of children and adolescents (CSEC) is a crime that is increasing worldwide and it is of great concern because it deals with a type of sexual abuse that violates the rights of children and ...

    • Contributions of the Melanopsin-Expressing Ganglion Cells, Cones, and Rods to the Pupillary Light Response in Obstructive Sleep Apnea 

      Duque-Chica G.L.; Gracitelli C.P.B.; Moura A.L.A.; Nagy B.V.; Vidal K.S.; de Melo G.; Paranhos A.; Jr; Cahali M.B.; Ventura D.F.
      Purpose: To investigate the impact of obstructive sleep apnea (OSA) on the contribution of inner and outer retinal photoreceptors to the pupillary light response (PLR). Methods: Ninety-three eyes from 27 patients with OSA ...

    • Comparison of the effects generated by the dry-soft grinding and the photodeposition of Au and Pt processes on the visible light absorption and photoactivity of TiO2 

      Galeano L.; Valencia S.; Marín J.M.; Restrepo G.; Navío J.A.; Hidalgo M.C.
      The influence of dry-soft grinding and photodeposition of gold (Au) or platinum (Pt) in the improvement of the photoactivity of TiO2 synthesized by an integrated sol-gel and solvothermal method was studied. TiO2 was modified ...

    • Effect of lattice deformation on electronic and optical properties of CuGaSe2: Ab-initio calculations 

      Bikerouin M.; Balli M.; Farkous M.; El-Yadri M.; Dujardin F.; Abdellah A.B.; Feddi E.; Correa J.D.; Mora-Ramos M.E.
      In this study, we have investigated the effect of bi-axial, ?ab, and uni-axial, ?c, strains on the optoelectronic properties of chalcopyrite semiconductor CuGaSe2 through first-principles full potential linearized augmented ...