Artículos: Recent submissions

Now showing items 1381-1400 of 4223

    • Search for magnetically-induced signatures in the arrival directions of ultra-high-energy cosmic rays measured at the Pierre Auger Observatory 

      Maris I.C.; Pekala J.; Smda R.; Supk J.; Aab A.; Abreu P.; Aglietta M.; Albury J.M.; Allekotte I.; Almela A.; Castillo J.A.; Alvarez-Muñiz J.; Batista R.A.; Anastasi G.A.; Anchordoqui L.; Andrada B.; Andringa S.; Aramo C.; Ferreira P.R.A.; Asorey H.; Assis P.; Avila G.; Badescu A.M.; Bakalova A.; Balaceanu A.; Barbato F.; Luz R.J.B.; Becker K.H.; Bellido J.A.; Berat C.; Bertaina M.E.; Bertou X.; Biermann P.L.; Bister T.; Biteau J.; Blanco A.; Blazek J.; Bleve C.; Boháčová M.; Boncioli D.; Bonifazi C.; Arbeletche L.B.; Borodai N.; Botti A.M.; Brack J.; Bretz T.; Briechle F.L.; Buchholz P.; Bueno A.; Buitink S.; Buscemi M.; Caballero-Mora K.S.; Caccianiga L.; Calcagni L.; Cancio A.; Canfora F.; Caracas I.; Carceller J.M.; Caruso R.; Castellina A.; Catalani F.; Cataldi G.; Cazon L.; Cerda M.; Chinellato J.A.; Choi K.; Chudoba J.; Chytka L.; Clay R.W.; Cerutti A.C.C.; Colalillo R.; Coleman A.; Coluccia M.R.; Conceicąõ R.; Condorelli A.; Consolati G.; Contreras F.; Convenga F.; Covault C.E.; Dasso S.; Daumiller K.; Dawson B.R.; Day J.A.; De Almeida R.M.; De Jesús J.; De Jong S.J.; Mauro G.D.; Neto J.R.T.D.M.; Mitri I.D.; De Oliveira J.; Franco D.D.O.; De Souza V.; Debatin J.; Rió M.D.; Deligny O.; Dhital N.; Matteo A.D.; Castro M.L.D.; Dobrigkeit C.; D'Olivo J.C.; Dorosti Q.; Anjos R.C.D.; Dova M.T.; Ebr J.; Engel R.; Epicoco I.; Erdmann M.; Escobar C.O.; Etchegoyen A.; Falcke H.; Farmer J.; Farrar G.; Fauth A.C.; Fazzini N.; Feldbusch F.; Fenu F.; Fick B.; Figueira J.M.; Filipčič A.; Fodran T.; Freire M.M.; Fujii T.; Fuster A.; Galea C.; Galelli C.; Garciá B.; Vegas A.L.G.; Gemmeke H.; Gesualdi F.; Gherghel-Lascu A.; Ghia P.L.; Giaccari U.; Giammarchi M.; Giller M.; Glombitza J.; Gobbi F.; Golup G.; Berisso M.G.; Vitale P.F.G.; Gongora J.P.; González N.; Goos I.; Góra D.; Gorgi A.; Gottowik M.; Grubb T.D.; Guarino F.; Guedes G.P.; Guido E.; Hahn S.; Halliday R.; Hampel M.R.; Hansen P.; Harari D.; Harvey V.M.; Haungs A.; Hebbeker T.; Heck D.; Hill G.C.; Hojvat C.; Hörandel J.R.; Horvath P.; Hrabovský M.; Huege T.; Hulsman J.; Insolia A.; Isar P.G.; Johnsen J.A.; Jurysek J.; Kaä¨pä A.; Kampert K.H.; Keilhauer B.; Kemp J.; Klages H.O.; Kleifges M.; Kleinfeller J.; Köpke M.; Mezek G.K.; Lago B.L.; Lahurd D.; Lang R.G.; De Oliveira M.A.L.; Lenok V.; Letessier-Selvon A.; Lhenry-Yvon I.; Presti D.L.; Lopes L.; López R.; Lorek R.; Luce Q.; Lucero A.; Payeras A.M.; Malacari M.; Mancarella G.; Mandat D.; Manning B.C.; Manshanden J.; Mantsch P.; Marafico S.; Mariazzi A.G.; Maris I.C.; Marsella G.; Martello D.; Martinez H.; Bravo O.M.; Mastrodicasa M.; Mathes H.J.; Matthews J.; Matthiae G.; Mayotte E.; Mazur P.O.; Medina-Tanco G.; Melo D.; Menshikov A.; Merenda K.-D.; Michal S.; Micheletti M.I.; Miramonti L.; Mockler D.; Mollerach S.; Montanet F.; Morello C.; Mostafá M.; Müller A.L.; Muller M.A.; Mulrey K.; Mussa R.; Muzio M.; Namasaka W.M.; Nellen L.; Niculescu-Oglinzanu M.; Niechciol M.; Nitz D.; Nosek D.; Novotny V.; Nožka L.; Nucita A.; Núñez L.A.; Palatka M.; Pallotta J.; Panetta M.P.; Papenbreer P.; Parente G.; Parra A.; Pech M.; Pedreira F.; Pekala J.; Pelayo R.; Penã-Rodriguez J.; Armand J.P.; Perlin M.; Perrone L.; Peters C.; Petrera S.; Pierog T.; Pimenta M.; Pirronello V.; Platino M.; Pont B.; Pothast M.; Privitera P.; Prouza M.; Puyleart A.; Querchfeld S.; Rautenberg J.; Ravignani D.; Reininghaus M.; Ridky J.; Riehn F.; Risse M.; Ristori P.; Rizi V.; De Carvalho W.R.; Rojo J.R.; Roncoroni M.J.; Roth M.; Roulet E.; Rovero A.C.; Ruehl P.; Saffi S.J.; Saftoiu A.; Salamida F.; Salazar H.; Salina G.; Gomez J.D.S.; Sánchez F.; Santos E.M.; Santos E.; Sarazin F.; Sarmento R.; Sarmiento-Cano C.; Sato R.; Savina P.; Schäfer C.; Scherini V.; Schieler H.; Schimassek M.; Schimp M.; Schlüter F.; Schmidt D.; Scholten O.; Schovánek P.; Schröder F.G.; Schröder S.; Sciutto S.J.; Scornavacche M.; Shellard R.C.; Sigl G.; Silli G.; Sima O.; Smída R.; Sommers P.; Soriano J.F.; Souchard J.; Squartini R.; Stadelmaier M.; Stanca D.; Stanič S.; Stasielak J.; Stassi P.; Streich A.; Suárez-Durán M.; Sudholz T.; Suomijärvi T.; Supanitsky A.D.; Supík J.; Szadkowski Z.; Taboada A.; Tapia A.; Timmermans C.; Tobiska P.; Peixoto C.J.T.; Tomé B.; Elipe G.T.; Travaini A.; Travnicek P.; Trimarelli C.; Trini M.; Tueros M.; Ulrich R.; Unger M.; Urban M.; Vaclavek L.; Vacula M.; Galicia J.F.V.; Valinõ I.; Valore L.; Vliet A.V.; Varela E.; Cárdenas B.V.; Vásquez-Ramírez A.; Veberič D.; Ventura C.; Quispe I.D.V.; Verzi V.; Vicha J.; Villasenõr L.; Vink J.; Vorobiov S.; Wahlberg H.; Watson A.A.; Weber M.; Weindl A.; Wiencke L.; Wilczyński H.; Winchen T.; Wirtz M.; Wittkowski D.; Wundheiler B.; Yushkov A.; Zapparrata O.; Zas E.; Zavrtanik D.; Zavrtanik M.; Zehrer L.; Zepeda A.; Ziolkowski M.; Zuccarello F.
      We search for signals of magnetically-induced effects in the arrival directions of ultra-high-energy cosmic rays detected at the Pierre Auger Observatory. We apply two different methods. One is a search for sets of events ...

    • Scientometric study of a co-authorship network on mathematics education. An analysis of the research fields based on Delphi method [Estudio cienciométrico de una red de coautoría en educación matemática. Un análisis de sus campos de investigación basado en el método Delphi] 

      Cruz-Ramírez M.; Díaz-Ferrer Y.; Rúa-Vásquez J.A.; Rojas-Velázquez O.J.
      Co-authorhip networks indirectly express complex scientific collaboration processes that transcend the institutional and national spheres. This study is aimed to identify co-authorship networks in the field of mathematics ...

    • Scientific literature analysis on sustainability with the implication of open innovation 

      Cano J.A.; Londoño-Pineda A.
      Studies related to sustainability have been performed extensively around the world to evaluate the environmental, economic, and social impact of practices that meet the current and future needs of society. Based on the ...

    • RPA Implementation for automation of managenment process of personal in Compañía Nacional de Empaques S.A. [Implementación RPA para la automatización de procesos de administración del personal en Compañía Nacional de Empaques S.A.] 

      Arias J.A.E.; Beltran J.A.B.; Bedoya S.
      The introduction of Robotic Process Automation (RPA) has the potential to improve the traditional way of performing tasks that are tediously repetitive. With its ability to automate tasks based on rules that are repetitive ...

    • Rule of law and constitutional model against the 2020 pandemic [Estado de derecho y modelo constitucional frente a la pandemia 2020] 

      Mendieta D.; Algarin Herrera G.M.
      The objective of this work is to show the relationship between the rule of law and crises. The Legislative State of Law will emerge from the crisis of the absolutist model, the English, American, French revolutions and the ...

    • Role of external fields on the nonlinear optical properties of a n-type asymmetric δ -doped double quantum well 

      Salman Durmuslar A.; Mora-Ramos M.E.; Ungan F.
      The effects of in-growth applied electric fields and in-plane (x-oriented) magnetic fields on the nonlinear optical rectification (NOR), second harmonic generation (SHG) and third harmonic generation (THG) of n-type ...

    • Role of Transition Metals on TM/Mo2C Composites: Hydrogen Evolution Activity in Mildly Acidic and Alkaline Media 

      Koverga A.A.; Gómez-Marín A.M.; Dorkis L.; Flórez E.; Ticianelli E.A.
      Modification of electronic and chemical properties of a material by the introduction of another element into its lattice is one of the most common methods for designing new catalysts for different applications. In this ...

    • Risk and suicidal ideation and its relationship with impulsivity and depression in school adolescent [Riesgo e Ideación Suicida y su Relación con la Impulsividad y la Depresión en Adolescentes Escolares] 

      Tabares A.S.G.; Núñez C.; Osorio M.P.A.; Aguirre A.M.G.
      A non-experimental cross-sectional design and explanatory study were proposed in order to analyze the statistical relationship between the suicide risk (SR) and suicidal ideation (SI) and the depression and impulsivity ...

    • Removal of Cr (VI) from an aqueous solution using an activated carbon obtained from teakwood sawdust: Kinetics, equilibrium, and density functional theory calculations 

      Ramirez A.; Ocampo R.; Giraldo S.; Padilla E.; Flórez E.; Acelas N.
      Because of its acute toxicity and high mobility, the hexavalent chromium [Cr (VI)] found in wastewater is a risk to the environment. In this study, activated carbon was produced from teakwood sawdust, which was chemically ...

    • Representational distance between expert narration and local accounts: A reflection on the politics of evidence in the field of memory in Colombia [Distância representacional entre a narrativa especializada e os relatos locais: Uma reflexão sobre as políticas da evidência no campo da memória na Colômbia] [Distancia representacional entre la narración experta y los relatos locales: Una reflexión sobre las políticas de la evidencia en el campo de la memoria en Colombia] 

      Romero G.R.; Castaño P.J.; Zapata D.C.
      The paper analyzes the epistemological limits of the narration resulting from the specialized work on memory. It is based, on the one hand, on fieldwork carried out in the stilt villages of Ciénaga Grande de Santa Marta ...

    • Remote photoplethysmography (rPPG) for contactless heart rate monitoring using a single monochrome and color camera 

      Ma X.; Tobón D.P.; El Saddik A.
      Human vital signs are essential information that are closely related to both physical cardiac assessments and psychological emotion studies. One of the most important data is the heart rate, which is closely connected to ...

    • Remembering attitudes in the fiction movies of carlos saura over the late francoism and Spanish transition: From the active memory of blindfolded eyes (1978) to the passive memory of sweet hours (1982) [Actitudes ante el recuerdo en el cine de ficción de carlos saura durante el tardofranquismo y la transición española: De la memoria activa de los ojos vendados (1978) a la memoria pasiva de dulces horas (1982)] 

      Pedreño J.A.P.
      This paper discusses the flashback, mental image and metalepsis in two essential feature films belonging to the memorial season that the filmmaker Carlos Saura undertakes over Late Francoism and, above all, Spanish Transition: ...

    • Reconstruction of events recorded with the surface detector of the Pierre Auger Observatory 

      Aab A.; Abreu P.; Aglietta M.; Albury J.M.; Allekotte I.; Almela A.; Castillo J.A.; Alvarez-Muñiz J.; Batista R.A.; Anastasi G.A.; Anchordoqui L.; Andrada B.; Andringa S.; Aramo C.; Ferreira P.R.A.; Asorey H.; Assis P.; Avila G.; Badescu A.M.; Bakalova A.; Balaceanu A.; Barbato F.; Luz R.J.B.; Becker K.H.; Bellido J.A.; Berat C.; Bertaina M.E.; Bertou X.; Biermann P.L.; Billoir P.; Bister T.; Biteau J.; Blanco A.; Blazek J.; Bleve C.; Boháčová M.; Boncioli D.; Bonifazi C.; Arbeletche L.B.; 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.; Caracas I.; Carceller J.M.; Caruso R.; Castellina A.; Catalani F.; Cataldi G.; Cazon L.; Cerda M.; Chinellato J.A.; Choi K.; Chudoba J.; Chytka L.; Clay R.W.; Cerutti A.C.C.; Colalillo R.; Coleman A.; Coluccia M.R.; Conceição R.; Condorelli A.; Consolati G.; Contreras F.; Convenga F.; Covault C.E.; Dasso S.; Daumiller K.; Dawson B.R.; Day J.A.; De Almeida R.M.; De Jesús J.; De Jong S.J.; Mauro G.D.; Neto J.R.T.D.M.; Mitri I.D.; De Oliveira J.; Franco D.D.O.; De Souza V.; Vito E.D.; Debatin J.; Río M.D.; Deligny O.; Dhital N.; Matteo A.D.; Castro M.L.D.; Dobrigkeit C.; D'Olivo J.C.; Dorosti Q.; Anjos R.C.D.; Dova M.T.; Ebr J.; Engel R.; Epicoco I.; Erdmann M.; Escobar C.O.; Etchegoyen A.; Falcke H.; Farmer J.; Farrar G.; Fauth A.C.; Fazzini N.; Feldbusch F.; Fenu F.; Fick B.; Figueira J.M.; Filipčič A.; Fodran T.; Freire M.M.; Fujii T.; Fuster A.; Galea C.; Galelli C.; García B.; Vegas A.L.G.; Gemmeke H.; Gesualdi F.; Gherghel-Lascu A.; Ghia P.L.; Giaccari U.; Giammarchi M.; Giller M.; Glombitza J.; Gobbi F.; Gollan F.; Golup G.; Berisso M.G.; Vitale P.F.G.; Gongora J.P.; González N.; Goos I.; Góra D.; Gorgi A.; Gottowik M.; Grubb T.D.; Guarino F.; Guedes G.P.; Guido E.; Hahn S.; Halliday R.; Hampel M.R.; Hansen P.; Harari D.; Harvey V.M.; Haungs A.; Hebbeker T.; Heck D.; Hill G.C.; Hojvat C.; Hörandel J.R.; Horvath P.; Hrabovský M.; Huege T.; Hulsman J.; Insolia A.; Isar P.G.; Johnsen J.A.; Jurysek J.; Kääpä A.; Kampert K.H.; Keilhauer B.; Kemp J.; Klages H.O.; Kleifges M.; Kleinfeller J.; Köpke M.; Mezek G.K.; Lago B.L.; Lahurd D.; Lang R.G.; De Oliveira M.A.L.; Lenok V.; Letessier-Selvon A.; Lhenry-Yvon I.; Presti D.L.; Lopes L.; López R.; Lorek R.; Luce Q.; Lucero A.; Payeras A.M.; Malacari M.; Mancarella G.; Mandat D.; Manning B.C.; Manshanden J.; Mantsch P.; Marafico S.; Mariazzi A.G.; Mariş I.C.; Marsella G.; Martello D.; Martinez H.; Bravo O.M.; Mastrodicasa M.; Mathes H.J.; Matthews J.; Matthiae G.; Mayotte E.; Mazur P.O.; Medina-Tanco G.; Melo D.; Menshikov A.; Merenda K.-D.; Michal S.; Micheletti M.I.; Miramonti L.; Mockler D.; Mollerach S.; Montanet F.; Morello C.; Mostafá M.; Müller A.L.; Muller M.A.; Mulrey K.; Mussa R.; Muzio M.; Namasaka W.M.; Nellen L.; Niculescu-Oglinzanu M.; Niechciol M.; Nitz D.; Nosek D.; Novotny V.; Nožka L.; Nucita A.; Núñez L.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.; Armand J.P.; Perlin M.; Perrone L.; Peters C.; Petrera S.; Pierog T.; Pimenta M.; Pirronello V.; Platino M.; Pont B.; Pothast M.; Privitera P.; Prouza M.; Puyleart A.; Querchfeld S.; Rautenberg J.; Ravignani D.; Reininghaus M.; Ridky J.; Riehn F.; Risse M.; Ristori P.; Rizi V.; De Carvalho W.R.; Rojo J.R.; Roncoroni M.J.; Roth M.; Roulet E.; Rovero A.C.; Ruehl P.; Saffi S.J.; Saftoiu A.; Salamida F.; Salazar H.; Salina G.; Gomez J.D.S.; Sánchez F.; Santos E.M.; Santos E.; Sarazin F.; Sarmento R.; Sarmiento-Cano C.; Sato R.; Savina P.; Schäfer C.; Scherini V.; Schieler H.; Schimassek M.; Schimp M.; Schlüter F.; Schmidt D.; Scholten O.; Schovánek P.; Schröder F.G.; Schröder S.; Schulz A.; Sciutto S.J.; Scornavacche M.; Shellard R.C.; Sigl G.; Silli G.; Sima O.; Šmída R.; Sommers P.; Soriano J.F.; Souchard J.; Squartini R.; Stadelmaier M.; Stanca D.; Stanič S.; Stasielak J.; Stassi P.; Streich A.; Suárez-Durán M.; Sudholz T.; Suomijärvi T.; Supanitsky A.D.; Šupík J.; Szadkowski Z.; Taboada A.; Tapia A.; Timmermans C.; Tkachenko O.; Tobiska P.; Peixoto C.J.T.; Tomé B.; Elipe G.T.; Travaini A.; Travnicek P.; Trimarelli C.; Trini M.; Tueros M.; Ulrich R.; Unger M.; Urban M.; Vaclavek L.; Vacula M.; Galicia J.F.V.; Valiño I.; Valore L.; Vliet A.V.; Varela E.; Cárdenas B.V.; Vásquez-Ramírez A.; Veberič D.; Ventura C.; Quispe I.D.V.; Verzi V.; Vicha J.; Villaseñor L.; Vink J.; Vorobiov S.; Wahlberg H.; Watson A.A.; Weber M.; Weindl A.; Wiencke L.; Wilczyński H.; Winchen T.; Wirtz M.; Wittkowski D.; Wundheiler B.; Yushkov A.; Zapparrata O.; Zas E.; Zavrtanik D.; Zavrtanik M.; Zehrer L.; Zepeda A.; Ziolkowski M.; Zuccarello F.
      Cosmic rays arriving at Earth collide with the upper parts of the atmosphere, thereby inducing extensive air showers. When secondary particles from the cascade arrive at the ground, they are measured by surface detector ...

    • Quantifying Irregular Morphology Electrograms in Atrial Fibrillation Using Fractional Fourier Domains 

      Gómez-Echavarría A.; Ugarte J.P.; Tobón C.
      A fractional Fourier transform-based strategy is proposed for the analysis of morphological irregularities of 933 simulated electrograms recorded from a 3D simulated human atria under atrial fibrillation. Optimum fractional ...

    • Psychological characteristics of sports performance: Analysis of professional and semiprofessional football referees 

      Aguirre-Loaiza H.; Holguín J.; Arenas J.; Núñez C.; Barbosa-Granados S.; García-Mas A.
      Sports psychology acknowledges the importance of referees in sports. However, evidence is still needed on psychological variables related to refereeing decisions. Psychological characteristics related to sports performance ...

    • Prospective vision on virtual education in AntioquiaColombia: Horizon 2050 [Visión prospectiva sobre la educación virtual en Antioquia-Colombia: Horizonte 2050] 

      Gonzalez-Palacio L.; Orrego-Suaza C.D.; Arango-Medina D.; Garcia-Giraldo J.M.; Echeverri-Arias J.A.; Cuatindioy-Imbachi J.; Ortiz-Pabon J.; Luna M.; Bedoya-Beltran J.A.; Torres-Bedoya D.
      Governments are devoting significant resources to propose strategies that disseminate and exploit into prospective studies. In 2019, the Government of Antioquia (Department located in Colombia) launched a program called ...

    • Problem-based learning for the Civil Engineering Materials Resistance Course: A bet from the virtual education supported by technological Learning Management System (LMS) type platforms [Aprendizaje basado en problemas para el curso de resistencia de materiales de ingenieros civiles: Una apuesta desde la educación virtual apoyada en plataformas tecnológicas tipo LMS -Learning Management System-] 

      García-Giraldo J.M.; González-Palacio L.; Cuatindioy-Imbachi J.; Luna-Del Risco M.A.; Arango-Medina D.; Torres-Bedoya D.
      [No abstract available]

    • Promoting effect of tungsten carbide on the catalytic activity of Cu for CO2reduction 

      Koverga A.A.; Flórez E.; Dorkis L.; Rodriguez J.A.
      The adsorption of H, CO2, HCOO, O and CO on copper monolayers and submonolayers supported on hexagonal WC(0001) surfaces has been investigated. Calculations have been performed using density functional theory with the ...

    • Preliminary study of the production of metabolites from in vitro cultures of C. ensiformis 

      Saldarriaga J.F.; Cruz Y.; López J.E.
      Background: Canavalia ensiformis is a legume native to Central and South America that has historically been a source of protein. Its main proteins, urease, and lectin have been extensively studied and are examples of ...

    • PID tuning method based on IMC for inverse-response second-order plus dead time processes 

      Castellanos-Cárdenas D.; Castrillón F.; Vásquez R.E.; Smith C.
      This work addresses a set of tuning rules for PID controllers based on Internal Model Control (IMC) for inverse-response second-order systems with dead time. The transfer function, and some time-response characteristics ...