Listar Investigación por tipo "artículo preliminar"
Mostrando ítems 21-40 de 123
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Characterization of principal bundles: the commutative case
(2023-10-04)A review of the characterization of principal bundles, through the different properties of the action of a group and its related canonical and translation maps, is presented. The work is divided in three stages: a topological ... -
Characterization of principal bundles: the noncommutative algebraic case
(2024)We review Hopf–Galois extensions, in particular faithfully flat ones, accepted to be the noncommutative algebraic dual of a principal bundle. We also make a short digression into how quantum groups relate to Hopf—Galois ... -
Clifford Geometry: a Seminar
(1995-12-15)Este documento fue desarrollado durante el seminario de posgrado SP--1313 (Seminario en Matemática A) en 1995; por razones de difusión, fue redactado en inglés. Se trata de una exposición de los aspectos de la geometría ... -
Clostridium perfringens Phospholipase C, an Archetypal Bacterial Virulence Factor, induces the Formation of Extracellular Traps by Human Neutrophils
(2023)Neutrophil extracellular traps (NETs) are networks of DNA and various microbicidal proteins, released to the extracellular space to kill invading microorganisms and prevent their dissemination. However, a NETs excess is ... -
Colección Identidad Cultural
(2011-09-05)Incluye una lista de las publicaciones que ha realizado el CIICLA bajo la Colección Identidad Cultural, desde su creación hasta agosto 2011. -
Comparación entre el efecto agudo de una clase de Zumba®, una clase de danza Aeróbica y una clase de ejercicio Aeróbico sin música, en el estado de animo de estudiantes universitarias
(2016)La automatización y las comodidades modernas han generado problemas de salud que afectan tanto la parte física, como los estados de ánimo; es por lo anterior que en la búsqueda de una mejor calidad de vida, se generaran ... -
Comparing the efficiency of monofilament and traditional nets for capturing bats
(2021)Traditional mist nets used for capturing bats have several drawbacks, particularly that they are inefficient at sampling many insectivorous species. One possible alternative is to use monofilament nets, whose netting is ... -
¿Cómo mejorar la prueba de 1RM de manera aguda en el ejercicio de press de pecho?
(2018)Las variaciones de la fuerza tras ejecutar el 1 RM pueden mejorar el resultado obtenido. OBJETIVO: Determinar si es posible aumentar la fuerza de forma aguda tras la reiteración de 1RM para las extremidades superiores. ... -
De la trascendencia de la plegaria en Cuentos de angustias y paisajes de Carlos Salazar Herrera
(2023)Este artículo se concentra en analizar la construcción y la función de la metonimia en los Cuentos de angustias y paisajes (1990) de Carlos Salazar Herrera. Para ello, se parte primero del hecho de que el cuentario se ... -
Deceived bilateral filter for improving the automatic cell segmentation and tracking in the NF-kB pathway without nuclear staining
(2014-10-29)In this work we implement an automatic videobased online cell tracking system for TNFa treated cells in the transcription factor NF-kB pathway, with the aim to provide p65 measurement approximation with time and individual ... -
Dehydration, Hyperhydration, and Hyponatremia in Tropical Climates
(Proceedings of the XXXI FIMS Sports Medicine World Congress, Medimond International Proceedings, 2010-10)Six statements are presented with supporting data: (1) An important number of athletes train and compete in hot and humid conditions that impair their performance; (2) dehydration should be avoided when exercising in the ... -
Demonstration of antibiotic-induced tolerance development in tropical agroecosystems through physiological profiling of sediment microbial communities
(2014-01)Agricultural use of antibiotics differs quantitatively and qualitatively in tropical and temperate countries. To gain insight into the nature and magnitude of physiological adaptations prompted by these drugs in microbial ... -
El desarrollo: Una tarea de la sociedad y sus organizaciones asociativas y cooperativas
(Ventaja Cooperativa y Organización Solidaria en un mundo complejo. Editorial Fontamara, México, 2010)El desarrrollo es concebido como una excepción en la situación y condición de las sociedades, no como una regularidad lograda o alcanzada por todos. Se debe tomar en cuenta los contextos actuales para debatir sobre desarrollo, ... -
Detection of Euhydration in Humans from the Diuresis Response to a Water Load
(2011-09-30)Aim: to calculate the minimum amount of water to be ingested in order to find significant differences in one-hour urine volume between euhydrated and dehydrated humans. Methods: Five participants (22.6±2.9 years old, ... -
Determination of body weight before and after a headstand: the wrestling myth
(2014-04-04)This study shows, through an experimental approach supported by a metrological approach, the falsehood of the myth among wrestlers and wrestling trainers that reported mass will decrease if a man remains in a headstand ... -
Diálogo REDICIRE. La comunicación efectiva de la ciencia y la religión: retos para dos tareas de actualidad
(2022-01)Estamos viviendo, en nuestros días, una crisis comunicativa que se podría analizar a partir de sencillos pero significativos elementos (emisor, receptor, canal, mensaje): ¿conoce bien el tema el emisor?, ¿qué tanta autoridad ... -
Digital Cultures in the Americas
(2020-03)More than two decades have passed since the publication of two seminal books in the study of digital cultures in Latin America. First was Ciberculturas en la era de las máquinas inteligentes (Piscitelli, 1995), published ... -
Discussing a Concept for an Online Learning Platform with Rural Sixth-Grade Students in Mind: Evidence-Based Guidelines for Designers, Teachers, and Policy Change
(2023)This study is a branch of a larger research project on the design process of FUNREAD, an online learning platform, co-designed with English language teachers (ELTs), that promotes linguistic and sociocultural learning among ... -
Diversity in somatic DNA repair efficiencies between commercial inbred maize lines and native Central American purple landraces
(2021)Maize is a staple food all over the world. Models for climate change suggest that, in the future, cloud formation might be reduced in the tropics increasing the exposure to Ultraviolet-B (UV-B) radiation, a DNA-damaging ... -
Diversity of deep-sea echinoderms from Costa Rica
(2022-07-31)Echinoderms are a highly diverse group and one of the most conspicuous in the deep sea, playing ecological key roles. We present a review about the history of expeditions and studies on deep-sea echinoderms in Costa Rica, ...