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Mostrando ítems 1267-1286 de 1389

    • The DESI Bright Galaxy Survey: Final Target Selection, Design, and Validation 

      ChangHoon Hahn; Wilson, Michael J.; Ruiz-Macias, Omar; Cole, Shaun; Weinberg, David H.; Moustakas, John; Kremin, Anthony; Tinker, Jeremy L.; Smith, Alex; Wechsler, Risa H.; Ahlen, Steven; Alam, Shadab; Bailey, Stephen; Brooks, David; Cooper, Andrew P.; Davis, Tamara M.; Dawson, Kyle; Dey, Arjun; Dey, Biprateep; Eftekharzadeh, Sarah; Eisenstein, Daniel J.; Fanning, Kevin; Forero-Romero, Jaime E.; Frenk, Carlos S.; Gaztañaga, Enrique; Gontcho A Gontcho, Satya; Guy, Julien; Honscheid, Klaus; Ishak, Mustapha; Juneau, Stéphanie; Kehoe, Robert; Kisner, Theodore; Lan, Ting-Wen; Landriau, Martin; Le Guillou, Laurent; Levi, Michael E.; Magneville, Christophe; Martini, Paul; Meisner, Aaron; Myers, Adam D.; Nie, Jundan; Norberg, Peder; Palanque-Delabrouille, Nathalie; Percival, Will J.; Poppett, Claire; Prada, Francisco; Raichoor, Anand; Ross, Ashley J.; Safonova, Sasha; Saulder, Christoph; Schlafly, Eddie; Schlegel, David; Sierra-Porta, David; Tarle, Gregory; Weaver, Benjamin A; Yèche, Christophe; Zarrouk, Pauline; Zhou, Rongpu; Zhou, Zhimin; Zou, Hu (Cartagena de Indias, 2023-05-26)
      Over the next 5 yr, the Dark Energy Spectroscopic Instrument (DESI) will use 10 spectrographs with 5000 fibers on the 4 m Mayall Telescope at Kitt Peak National Observatory to conduct the first Stage IV dark energy galaxy ...

    • The DESI Survey Validation: Results from Visual Inspection of Bright Galaxies, Luminous Red Galaxies, and Emission-line Galaxies 

      Ting-Wen Lan; Tojeiro, R.; Armengaud, E.; Prochaska, J. Xavier; Davis, T. M.; Alexander, David M.; Raichoor, A.; Zhou, Rongpu; Yèche, Christophe; Balland, C.; BenZvi, S.; Berti, A.; Carr, A.; Chittenden, H.; Cole, S.; Cousinou, M. C.; Dawson, K.; Dey, Biprateep; Douglass, K.; Edge, A.; Escoffier, S.; Glanville, A.; Gontcho A Gontcho, Satya; Guy, J.; Hahn, C.; Howlett, C.; Hwang, Ho Seong; Jiang, L.; Kovács, A.; Mezcua, M.; Moor, S.; Nadathur, S.; Oh, M.; Parkinson, D.; Rocher, A.; Ross, A. J.; Ruhlmann-Kleider, V.; Sabiu, C. G.; Said, K.; Saulder, C.; Sierra-Porta, D.; Weiner, B.; Yu, J.; Zarrouk, Pauline; Zhang, Y.; Zou, Hu; Ahlen, S.; Bailey, S.; Cooper, A. P.; De la Macorra, A.; Dey, A.; Dhungana, G.; Doel, P.; Eftekharzadeh, S.; Fanning, K.; Font-Ribera, A.; Garrison, L.; Gaztañaga, E.; Kehoe, R.; Kisner, T.; Kremin, A.; Landriau, M.; Le Guillou, L.; Levi, Michael E.; Magneville, C.; Meisner, Aaron M.; Miquel, R.; Moustakas, J.; Myers, Adam D.; Newman, Jeffrey A.; Nie, J. D.; Palanque-Delabrouille, N.; Percival, W. J.; Poppett, C.; Prada, F.; Schubnell, M.; Tarlé, Gregory; Weaver, B. A.; Zhang, K.; Zhou, Zhimin (Cartagena de Indias, 2023-01-20)
      The Dark Energy Spectroscopic Instrument (DESI) Survey has obtained a set of spectroscopic measurements of galaxies to validate the final survey design and target selections. To assist in these tasks, we visually inspect ...

    • The dynamic model of a four control moment gyroscope system 

      Yime-Rodríguez, E.; Peña-Cortés, C.A.; Rojas-Contreras, W.M. (Universidad Nacional de Colombia, 2014)
      The dynamic model of a Four Control Moment Gyroscope (4-CMG) is traditionally obtained after computing the derivative of the angular momentum equation. Although this approach leads to a simple dynamic model, new models ...

    • The early retirement of newscasts women presenters in Colombia and Spain: The repudiation of female old age 

      Vázquez-Miraz P. (Universidad Complutense de Madrid, 2019)
      The actual television, as a mass communication based on public image, maintains a series of sexual stereotypes that are also transmitted in the newscasts. In the following research article, a cross-cultural gender study ...

    • The emergence of cognitive short-term planning: Performance of preschoolers in a problem-solving task 

      Guevara Guerrero, M.; Puche-Navarro, R. (Universidad Catolica de Colombia, 2015)
      The aim of this study is to identify patterns of the cognitive planning process of young children emerging in the context of a problem solving task. Using a complex dynamic systems approach, this paper depicts the main ...

    • The equivalence between successive approximations and matricial load flow formulations 

      Herrera Briñez, María Camila; Montoya, Oscar Danilo; Alvarado-Barrios, Lázaro; Chamorro, Harold R. (Cartagena de IndiasCampus TecnológicoIngeniería Eléctrica, 2021-03-24)
      This paper shows the equivalence of the matricial form of the classical backward/forward load flow formulation for distribution networks with the recently developed successive approximations (SA) load flow approach. Both ...

    • The executive functions as predictors of the academic performance of college students 

      Gutiérrez-Ruiz, Karol; Paternina, Joel; Zakzuk, Sharick; Mendez, Sandra; Castillo, Angie; Payares, Laura; Peñate, Andrea (Cartagena de Indias, 2020)
      In this paper, we study the relationship between Executive Functions (EF) and academic performance, analyzing by means of EF cognitive measures if working memory, inhibitory control, cognitive flexibility and categorization ...

    • The Implementation of the Historical Memory Law in the City of Corunna 

      Vázquez-Miraz, Pedro (Cartagena de IndiasCampus Tecnológico, 2021-07)
      The following article presents an exploratory study about the implementation in a middle-sized city of the so-called Historical Memory Law (established in 2007). Through heraldry and numismatics, considering the evolution ...

    • The Kriging integration method applied to the boundary element analysis of Poisson problems 

      Narváez, A.; Useche Vivero, Jairo (Cartagena de Indias, 2020)
      A novel efficient technique is presented for the evaluation of domain integrals that appear in the boundary element method (BEM). Herein, the source term is approximated with the use of radial basis functions, as in the ...

    • The maximal subspace for generation of (a,k)-regularized families 

      Alvarez-Pardo, E.; Lizama, C. (2012)
      Let A be a linear operator in a Banach space X. We define a subspace of X and a norm such that the part of A in such subspace generates an (a, k)-regularized resolvent family. This space is maximal-unique in a suitable ...

    • The notion of Kierkegaardian conscience as an implication of the outside world: A critique of the Cartesian approach 

      González, Y.G. (Universidad del Norte, 2019)
      This article aims at showing how the Danish philosopher SØren Kierkegaard, through his concept of conscience, criticizes Cartesian skepticism upon affirming the impossibility of doubting the outside world, since the very ...

    • The origin of Humboldt and Bonpland's holotype of Oncidium ornithorhynchum, clarified using +200-year-old DNA 

      Contreras-Ortiz N.; Rodríguez-García T.; Quintanilla S.; Bernal-Villegas J.; Madriñán S.; Gómez-Gutiérrez A. (John Wiley and Sons Inc., 2019)
      Oncidium ornithorhynchum, an epiphytic orchid characterized by erect, pyramidal inflorescences and small yellow flowers, is found in the northern Andes. However, according to the protologue, the type was collected in Mexico ...

    • The potential that ethical finance has to generate new investment alternatives in Colombia 

      Sierra González J.H.; Londoño Bedoya D.A. (2008)
      This article examines the need for and the opportunity of developing ethical finance initiatives, specifically ethical banks and ethical investment funds, as alternatives to strengthen development in Colombia. The validity ...

    • The protection of the cultural heritage of galician emigration in cartagena de Indias (Colombia). Reflections on the conservation of casa galicia 

      Vázquez-Miraz, Pedro; Matos, Camilo; Romero, Luis (Cartagena de Indias, 2020)
      Casa Galicia of Cartagena de Indias (Colombia) is an element of the cultural heritage of this city that used to represent the success of its builders, a Galician emigrant family of the beginning of the 20th century. By ...

    • The rider behavior questionnaire to explore associations of motorcycle taxi crashes in Cartagena (Colombia) 

      Ospina-Mateus, Holman; Quintana Jiménez, Leonardo Augusto; López Valdés, Francisco J. (Cartagena de Indias, 2021-08-16)
      Objective: This study aimed to identify the association between behavioral factors and crashes of motorcycle taxi riders using the Motorcycle Rider Behavior Questionnaire (MRBQ). Methods: This study was a cross-sectional ...

    • The role of energy storage and cross-border interconnections for increasing the flexibility of future power systems : the case of Colombia 

      Pupo-Roncallo, O.; Campillo Jiménez, Javier Eduardo; Ingham, D.; Ma, L.; Pourkashanian, M. (Cartagena de Indias, 2021-04-20)
      The rapid expansion of renewable energy technologies in the electricity sector introduces new significant challenges for power systems due to their high intermittency. Therefore, more flexibility is needed to ensure that ...

    • The role of women in Rainbow of Peace, by Fray Pedro de Santa María y Ulloa 

      Vázquez-Miraz P. (Universidad Nacional de Educacion a Distancia, 2017)
      This article analyzes the role of women and the Virgin Mary in the vision of the Dominican friar of the XVII century, Fray Pedro de Santa María y Ulloa, the highest representative of the devotion to the Marian prayer in ...

    • The societal context of professional practice: Examining the impact of politics and economics on journalistic role performance across 37 countries 

      Mellado, Claudia; Hallin, Daniel; Blanchett, Nicole; Márquez-Ramírez, Mireya; Jackson, Daniel; Stępińska, Agnieszka; Skjerdal, Terje; Himma, Marju; McIntyre, Karen; Hagen, Lutz M.; Amiel, Pauline; Abuali, Yasser; Fahmy, Nagwa; Boudana, Sandrine; Chen, Yi-Ning Katherine; Davidov, Sergey; De Maio, Mariana; Frías Vázquez, Maximiliano; Garcés, Miguel; Humanes, María Luisa; Herczeg, Petra; Lee, Misook; I-Hsuan Lin, Christi; Melki, Jad; Mick, Jacques; Mincigrucci, Roberto; Ninković Slavnić, Danka; Nolan, David; Olivera, Dasniel; Olmedo, Samantha; Pizarro, Marcela; Quinn, Fergal; Szabó, Gabriella; Van Leuven, Sarah; Viveros Aguilar, Diana; Wyss, Vinzenz (Cartagena de IndiasCampus TecnológicoComunicación Social, 2024-01-30)
      The impact of socio-political variables on journalism is an ongoing concern of comparative research on media systems and professional cultures. However, they have rarely been studied systematically across diverse cases, ...

    • The state of optics research in Colombia: a scientometric analysis 

      Marrugo, Andrés G; Bustos-González, Atilio; Rueda, Edgar (Cartagena de Indias, 2022-03-05)
      Although there is a perception in the community that the state of optics research in Colombia has reached a mature state with international recognition, to date, there is no study that supports this view quantitatively. We ...

    • The use of infrared spectroscopy and machine learning tools for detection of Meloidogyne infestations 

      San‐Blas, Ernesto; Paba, Gabriel; Cubillán, Néstor; Portillo, Edgar; Casassa-Padrón, Ana M.; González‐González, César; Guerra, Mayamarú (Cartagena de Indias, 2020-08-01)
      Plant parasitic nematodes are generally soilborne pathogens that attack plants and cause economic losses in many crops. The infested plants show nonspecific symptoms or, often, are symptomless; therefore, diagnosis is ...

      Universidad Tecnológica de Bolívar - 2017 Institución de Educación Superior sujeta a inspección y vigilancia por el Ministerio de Educación Nacional. Resolución No 961 del 26 de octubre de 1970 a través de la cual la Gobernación de Bolívar otorga la Personería Jurídica a la Universidad Tecnológica de Bolívar.