Mostrando ítems 761-780 de 1632

    • Nonlinear optical properties of n-type asymmetric double δ -doped quantum wells: role of high-frequency laser radiation, doping concentration and well width 

      Durmuslar A.S.; Mora-Ramos M.E.; Ungan F.
      A numerical investigation on the nonlinear optical rectification, second and third harmonic generation coefficients in asymmetric double n-type δ-doped GaAs quantum well is performed in order to identify the influence of ...
    • Non-Smooth Dynamics in Energy Market Models: A Complex Approximation from System Dynamics and Dynamical Systems Approach 

      Valencia-Calvo J.; Olivar-Tost G.; Morcillo-Bastidas J.D.; Franco-Cardona C.J.; Dyner I.
      This paper reports a general model that describes the supply and demand of electricity in a national market based on the system dynamics (SD) approach. From the resulting SD model, it derives piecewise smooth (non-smooth) ...
    • Modelo de evaluacion gamificado en cursos de algoritmos y programacion 

      Zapata Puerta L.N.; Gomez-Alvarez M.C.
      Currently, engineering and computer science programs worldwide face several challenges, on the one hand, high dropout rates still persist in these programs with rates ranging from 30% to 50%. On the other hand, due to this ...
    • Measurement of the cosmic-ray energy spectrum above 2.5×1018 eV using the Pierre Auger Observatory 

      Aab A.; Abreu P.; Aglietta M.; Albury J.M.; Allekotte I.; Almela A.; Alvarez Castillo J.; Alvarez-Muñiz J.; Alves Batista R.; Anastasi G.A.; Anchordoqui L.; Andrada B.; Andringa S.; Aramo C.; Araújo Ferreira P.R.; Asorey H.; Assis P.; Avila G.; Badescu A.M.; Bakalova A.; Balaceanu A.; Barbato F.; Barreira Luz R.J.; 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.; Bonneau Arbeletche L.; 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.; Cobos Cerutti A.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.; De Mauro G.; De Mello Neto J.R.T.; De Mitri I.; De Oliveira J.; De Oliveira Franco D.; De Souza V.; De Vito E.; Debatin J.; Del Río M.; Deligny O.; Dembinski H.; Dhital N.; Di Giulio C.; Di Matteo A.; Díaz Castro M.L.; Dobrigkeit C.; D'Olivo J.C.; Dorosti Q.; Dos Anjos R.C.; 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.; Garcia Vegas A.L.; Gemmeke H.; Gesualdi F.; Gherghel-Lascu A.; Ghia P.L.; Giaccari U.; Giammarchi M.; Giller M.; Glombitza J.; Gobbi F.; Gollan 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.; 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.; Kukec Mezek G.; Lago B.L.; Lahurd D.; Lang R.G.; Leigui De Oliveira M.A.; Lenok V.; Letessier-Selvon A.; Lhenry-Yvon I.; Lo Presti D.; Lopes L.; López R.; Lorek R.; Luce Q.; Lucero A.; Machado Payeras A.; 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.; Martínez Bravo O.; 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.; Nguyen P.H.; 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.; P ©kala J.; Pelayo R.; Peña-Rodriguez J.; Perez Armand J.; 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.; Rodrigues De Carvalho W.; Rodriguez Fernandez G.; 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.; 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.; Todero Peixoto C.J.; Tomé B.; Torralba Elipe G.; Travaini A.; Travnicek P.; Trimarelli C.; Trini M.; Tueros M.; Ulrich R.; Unger M.; Urban M.; Vaclavek L.; Vacula M.; Valdés Galicia J.F.; Valiño I.; Valore L.; Van Vliet A.; Varela E.; Vargas Cárdenas B.; Vásquez-Ramírez A.; Veberič 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.; 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.; (The Pierre Auger Collaboration)
      We report a measurement of the energy spectrum of cosmic rays for energies above 2.5×1018 eV based on 215,030 events recorded with zenith angles below 60°. A key feature of the work is that the estimates of the energies ...
    • Multi-model Environment Generation and Tailoring Model for Software Process Improvement 

      Gasca-Hurtado G.P.; Londoño J.A.H.; Muñoz M.
      Software development organizations take great risks when are faced with process improvement projects and the inclusion of best practices. Such risks include the selection of a standard, framework or model for the improvement ...
    • Multivector Variate Distributions 

      Díaz-García J.A.; Caro-Lopera F.J.; Ramírez F.O.P.
      A new family of multivariate distributions under elliptical models is proposed in this work. Several particular cases of this multivector variate distributions are obtained and a number of published multivariate distributions ...
    • Mapping spatial variability of quality of life in the city of Medellín, Colombia 

      Sepúlveda-Murillo F.H.; Soto-Builes N.M.; Checa-Olivas M.; Chica-Olmo J.
      The study of subjective welfare or perceived quality of life (QoL) is currently a topic of interest in the social sciences due to its implications for the design and evaluation of social and economic policies. To this end, ...
    • Mapping SETMAT practices to SPEM 

      Cruz P.; Gomez-Alvarez M.C.; Astudillo H.
      ESSENCE, the Software Engineering Method and Theory (SEMAT) extensible Kernel, allows description of software development initiatives. One of the extensions is SETMAT, the Software Engineering Teaching Method and Theory, ...
    • Mathematical programming modeling for joint order batching, sequencing and picker routing problems in manual order picking systems 

      Cano J.A.; Correa-Espinal A.A.; Gómez-Montoya R.A.
      This article aims to introduce mathematical programming models for the joint order batching and picker routing problem (JOBPRP) and the joint order batching, sequencing and routing problem (JOBSPRP). For this purpose, we ...
    • Local and Global: The State against transnational crime [Local y global: El Estado frente al delito transnacional] 

      Bustamante P.P.
      Transnational organized crime (cot) is one of the main affectations to nation states in the contemporary world, to such an extent that in many occasions criminal networks exceed the capacity of institutions. The objective ...
    • KrCl and XeCl excilamps and LP-Hg lamp for UV and UV/H2O2 decolourization of dyes in water 

      Aristizábal A.; Perilla G.; Lara-Borrero J.A.; Diez R.
      In the present study, the decolourization efficiencies of LP-Hg lamp, XeCl and KrCl excilamps at the same power density were compared for the decolourization of dyes in water by UV and UV/H2O2 processes in a batch reactor. ...
    • Interdisciplinary Approach of the Design Process for the Application of New Materials in Wheelchair Design 

      Chacon-Cifuentes P.; Zuleta-Gil A.; Cadavid G.S.; Valencia-Escobar A.; Correa-Bedoya E.; Echeverria-Echeverria F.
      The appropriation of new technology requires the design and development of products that are accepted by the market. Developing such products is a complex task that usually requires the integration of knowledge from multiple ...
    • Interdisciplinary analysis of hazardous hospital waste management in tertiary hospitals in Medellin 

      Villegas-Arias G.C.; Betancur-Vélez M.; Agudelo-Cadavid R.M.; Hoyos-López A.
      Medellín is a region where opportunities have been identified to improve the system for managing hazardous hospital waste (HHW). This study combines research methods of administration, environmental engineering, and public ...
    • Managerial profile of teacher-directors in antioquia and administrative management approaches [Le profil de gestion du responsable pédagogique d'antioquia et les approches de gestion administrative] [O perfil de gestão do diretor docente de antioquia e as abordagens de gestão administrativa] [El perfil de gestión del directivo docente de antioquia y los enfoques de gestión administrativa] 

      Builes N.S.; Puente S.M.; Calderón-Hernández G.; Betancur H.D.
      This paper reports the results of a research aimed at studying the relationship between the managerial approach and the personal and professional characteristics of teacher-directors at schools of the 117 non-certified ...
    • Judicial discretion. Development of a category in continuous construction [Discrecionalidad judicial. Desarrollo de una categoría en continua construcción] 

      Flórez Aristizabal E.A.; Mojica Araque C.A.
      This article presents the current reality of the limits and / or autonomy that legal operators have when applying legal norms, bearing in mind that in Constitutional States judicial activity is linked to the structural ...
    • Legislative and jurisprudential management of transnational organized crime in Latin America [Tratamiento legislativo y jurisprudencial del crimen organizado transnacional en América Latina] 

      Bustamante P.P.
      The research analyzes the legislation and jurisprudence on Transnational Organized Crime (TOC) in Latin America from two databases of the knowledge management portal Sharing Electronic Resources and Laws on Crime (SHERLOC) ...
    • Improvement of the algorithm ADR in an internet of things network LoRaWAN by using machine learning [Mejoramiento del algoritmo ADR en una red de internet de las cosas LoRaWAN usando aprendizaje de máquina] 

      González-Palacio M.; Sepúlveda-Cano L.M.; Quiza-Montealegre J.; D’amato J.
      The Internet of Things (IoT) is an enabling paradigm for Industry 4.0, where sensors and actuators connect to the Internet. The protocol LoRaWAN (Long Range Area Network) is one of the most used in the IoT, and its primary ...
    • Impact of students' cultural values on the corporate entrepreneurship management linked to social responsibility 

      Escobar-Sierra M.; Calderón-Valencia F.
      The present study tries to analyse the influence of students' cultural values on corporate entrepreneurship management associated with social responsibility. For that purpose, we adopt a multidisciplinary approach that ...
    • Hydrogenic Impurity States in a Delta-Layer Within Quantum Wells in a Transversal Electric Field 

      Tulupenko V.; Akimov V.; Demediuk R.; Tiutiunnyk A.; Duque C.; Sushchenko D.; Fomina O.; Morales A.; Laroze D.
      The effect of a transversal electric field on the impurity binding energy and the energy differences between the space-quantized subbands of center delta-doped SiGe/Si quantum well structure is studied numerically with a ...