Search Results - "Ledezma, Carlos"

Mathematical Modelling from a Semiotic-Cognitive Approach by Ledezma, Carlos

“…Mathematical modelling has acquired relevance in different fields at an international level, both in education and research. This article states that,…”
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A modeling and machine learning approach to ECG feature engineering for the detection of ischemia using pseudo-ECG by Ledezma, Carlos A, Zhou, Xin, Rodríguez, Blanca, Tan, P J, Díaz-Zuccarini, Vanessa

“…Early detection of coronary heart disease (CHD) has the potential to prevent the millions of deaths that this disease causes worldwide every year. However,…”
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Optimal data fusion for the improvement of QRS complex detection in multi-channel ECG recordings by Ledezma, Carlos A., Altuve, Miguel

“…The automatic analysis of the electrocardiogram (ECG) begins, traditionally, with the detection of QRS complexes. Afterwards, useful information can be…”
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The Role Played by Extra-mathematical Connections in the Modelling Process by Ledezma, Carlos, Rodríguez-Nieto, Camilo Andrés, Font, Vicenç

“…Literature review in Mathematics Education on connections makes evident the necessity of delving into extra-mathematical connections. In this line, we answer…”
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Knowledge and Beliefs on Mathematical Modelling Inferred in the Argumentation of a Prospective Teacher When Reflecting on the Incorporation of This Process in His Lessons by Ledezma, Carlos, Sol, Telesforo, Sala-Sebastià, Gemma, Font, Vicenç

“…Mathematical modelling enjoys affirmed relevance in educational curricula worldwide, and teacher education programs consider that this process should also be…”
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Comparative study of three vulcanization kinetic models for natural rubber/leather wastes composites by Urrego, William, Guzmán Sánchez, Manuel A, Giraldo, Diego Hernán, Posada Correa, Juan C, Rodríguez Ledezma, Carlos Mario

“…In this article, the effect of leather residues from chrome tanning on the vulcanization kinetics and rheometric properties of a natural rubber composite was…”
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The uncertain future of protected lands and waters by Golden Kroner, Rachel E, Qin, Siyu, Cook, Carly N, Krithivasan, Roopa, Pack, Shalynn M, Bonilla, Oscar D, Cort-Kansinally, Kerry Anne, Coutinho, Bruno, Feng, Mingmin, Martínez Garcia, Maria Isabel, He, Yifan, Kennedy, Chris J, Lebreton, Clotilde, Ledezma, Juan Carlos, Lovejoy, Thomas E, Luther, David A, Parmanand, Yohan, Ruíz-Agudelo, César Augusto, Yerena, Edgard, Morón Zambrano, Vilisa, Mascia, Michael B

“…Protected areas are intended to safeguard biodiversity in perpetuity, yet evidence suggests that widespread legal changes undermine protected area durability…”
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Diversity and Functions of Epilithic Riverine Biofilms by Pineda-Mora, Daniel, Juárez-López, Ana Laura, Toribio-Jiménez, Jeiry, Leal-Ascencio, Maria Teresa, Ruvalcaba-Ledezma, Jesús Carlos, Castelán-Sánchez, Hugo Gildardo, Aguirre-Noyola, José Luis, Arp, Paul Alexander

“…This article relates epilithic dry- and wet-seasonal bacterial biofilm composition to water quality along Río de la Sabana near Acapulco, Mexico. Samples were…”
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Investigating the physiology of normothermic ex vivo heart perfusion in an isolated slaughterhouse porcine model used for device testing and training by Kappler, Benjamin, Ledezma, Carlos A, van Tuijl, Sjoerd, Meijborg, Veronique, Boukens, Bastiaan J, Ergin, Bülent, Tan, P J, Stijnen, Marco, Ince, Can, Díaz-Zuccarini, Vanessa, de Mol, Bas A J M

“…The PhysioHeart™ is a mature acute platform, based isolated slaughterhouse hearts and able to validate cardiac devices and techniques in working mode. Despite…”
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Inquiry and Mathematical Modelling with Real-Archaeological Objects in Secondary Education by Falcó-Solsona, Pere Joan, Ledezma, Carlos, Sala-Sebastià, Gemma, Font, Vicenç

“…Inquiry and modelling are relevant processes of mathematical activity, and both are considered as important competencies for problem solving, since their…”
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Liver cancer in Hidalgo State, Mexico: analysis of the status, risk factors and regional public health policy requirements: a cross-sectional correlational study by Barrera-Cortés, Rosa Isela, Rodriguez-Torres, Erika Elizabeth, Vázquez-Mendoza, Enrique, Ruvalcaba-Ledezma, Jesús Carlos, Soria-Jasso, Luis Enrique, Ortiz, Mario Isidoro, Fernández-Martínez, Eduardo

“…BACKGROUNDIn Latin America, liver cancer is one of the top causes of cancer mortality. It is the fifth most common cause of death among malignant tumors in…”
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Click Chemistry-Based Two-Component System for Efficient Inhibition of Human Immunodeficiency Virus (HIV) Reverse Transcriptase (RT) by Ledezma, Carlos E, Cornett, Evan M, Kolpashchikov, Dmitry M

“…We synthesized two dTTP analogues for copper-free “click” chemistry-coupling in the active sites of DNA polymerases. We found that in the presence of both…”
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Complications of Cerebral Arteriovenous Malformation Embolization: Multivariate Analysis of Predictive Factors by Ledezma, Carlos J., Hoh, Brian L., Carter, Bob S., Pryor, Johnny C., Putman, Christopher M., Ogilvy, Christopher S.

“…Abstract OBJECTIVE: Embolization is an important therapeutic modality in the multidisciplinary management of arteriovenous malformations (AVM); however, prior…”
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Mapping the irrecoverable carbon in Earth’s ecosystems by Noon, Monica L., Goldstein, Allie, Ledezma, Juan Carlos, Roehrdanz, Patrick R., Cook-Patton, Susan C., Spawn-Lee, Seth A., Wright, Timothy Maxwell, Gonzalez-Roglich, Mariano, Hole, David G., Rockström, Johan, Turner, Will R.

“…Avoiding catastrophic climate change requires rapid decarbonization and improved ecosystem stewardship at a planetary scale. The carbon released through the…”
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Multimodal CT in Stroke Imaging: New Concepts by Ledezma, Carlos J., MD, Wintermark, Max, MD

“…A multimodal CT protocol provides a comprehensive noninvasive survey of acute stroke patients with accurate demonstration of the site of arterial occlusion and…”
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Experiencia educativa en modelización para docentes de matemática en Panamá by Ledezma, Carlos, Morales-Maure, Luisa, Font, Vicenc

“…A nivel internacional, la modelización matemática ha ido ganando un espacio importante en los currículos educativos, razón por la cual la enseñanza de este…”
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Survival after brain metastases from breast cancer in the trastuzumab era by Kirsch, David G, Ledezma, Carlos J, Mathews, Christina S, Bhan, Atul K, Ancukiewicz, Marek, Hochberg, Fred H, Loeffler, Jay S

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The Influence of Antivaccination Movements on the Re-emergence of Measles by Patricia, Calderon Rodrfguez Nelly, Zulay, Jerez Pacheco Yary, Carlos, Ruvalcaba Ledezma Jesus, Alejandra, Chavarrfa Miranda, Cristina, Jimenez Sanchez Reyna, Josefina, Reynoso Vazquez

“…Measles is a contagious disease, preventable by vaccination, of great importance for public health and its impact on the morbidity and mortality of the…”
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Reflexão de uma futura professora sobre o ensino de álgebra através da modelagem matemática by Ledezma, Carlos, Breda, Adriana, Sánchez, Alicia

“…Há um amplo consenso sobre a importância de trabalhar as competências matemáticas em todos os níveis de ensino, entre os quais se destaca a modelagem…”
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Zika; A Threat to Making Important Decisions on Maternal and Perinatal Health by Josefina, Reynoso Vazquez, Carlos, Ruvalcaba Ledezma Jesus, Alejandra, Chavarrfa Miranda, Cristina, Jimenez Sanchez Reyna, Patricia, Guzman Meneses Karla, Karina, Alamilla Perez

“…The Zika virus disease represents a great challenge for the medical-scientific community not only because of the association that exists with microcephaly and…”
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