491 research outputs found
Caracterización de biomarcadores lagrimales mediante espectroscopia Raman y análisis de componentes multivariante encaminada a la detección de diabetes
No full textn este trabajo, se caracterizó a los biomarcadores lagrimales, albumina, glucosa, lactoferrina y lisozima, por medio de una lágrima sintética. Se realizarón diferentes concentraciones químicas de los cuatro biomarcadores seleccionados, de las disoluciones obtenidas con agua destilada se analizó un volumen de 10 μl (volumen mínimo que se puede extraer de una persona), a cada disolución se le aplicó la técnica de espectroscopía Raman en el que se obtuvieron espectros para identificar las bandas espectrales de cada biomarcador. Los espectros obtenidos fueron examinados de manera analógica para después ser procesados por medio de un programa realizado en Matlab aplicando un filtro que retiro el ruido que se obtiene durante las mediciones. De manera complementaria se aplicó un análisis de componentes principales en el que nos permitió observar un conjunto de espectros Raman de diferentes concentraciones clasificados de acuerdo a sus características semejantes. Adicional a esta tesis se presenta un estudio piloto del análisis de lagrima in vivo de 10 voluntarios aleatorios, en este estudio se hace una comparación de espectros de los biomarcadores de albumina y glucosa con el de la lagrima obtenida, para determinar las bandas que coinciden de los biomarcadores en una lagrima real. Lo que permitiría el diagnostico de diabetes entre otro tipo de enfermedades relacionadas con los biomarcadores.This thesis used a synthetic tear to characterize tear biomarkers albumin, glucose, lactoferrin, and lysozyme. Different chemical concentrations of these four selected biomarkers were made. Each solution was analyzed with the Raman spectroscopy technique from the solutions obtained with distilled water using a volume of 10μl (minimum volume extracted from a person). The spectra were obtained to identify the spectral bands of each biomarker. The spectra obtained were examined analogously and then processed using a program made in MATLAB, applying a filter that removed the noise obtained during the measurements. In a complementary way, a principal component analysis was applied, which allowed us to observe a set of Raman spectra of different concentrations classified according to their similar characteristics. In addition, this thesis presents a pilot study of in vivo tear analysis of 10 random volunteers. This study compares the spectra of the albumin and glucose biomarkers from the synthetic tear with the real tear to determine the bands that coincide with each other biomarkers. It will allow the diagnosis of diabetes among different types of diseases related to biomarkers
En defensa del Jicótencal de José María Heredia
No full textAnálisis de la trayectoria y la obra del cubano José María Heredia y Heredia (1803-1839), tanto dentro como fuera de México, y de su legado a las letras y la cultura de la región. Destacado humanista, abogado, poeta y dramaturgo, Heredia es considerado iniciador del romanticismo poético de América Latina y también se le atribuye la autoría de la novela histórica Jicótencal (ca. 1826).Analysis of the Cuban José María Heredia y Heredia’s (1803-1839) work and professional career, both in Mexico and abroad, as well as his writing and legacy to regional cultures. Prominent humanist, lawyer, poet, and playwright, Heredia is thought of as a pioneer of Latin American poetic romanticism and author of the historical novel Jicótencal (ca. 1826)
Heredia, Zayas y la traducción del Parnasianismo
No full textThe publication of Les Trophées by José Maria de Heredia in 1893 earned the author an immortal seat in the prestigious French Academy and translations of his work followed suit. In this project, I analyze the effect of Antonio de Zayas\u27 translation of the sonnets into Spanish by exploring the literary qualities of the translation, as well as the impact it had on the Ibero-American context
Brazilian Leadership in Open Research.pdf
No full textORCID`s Executive Director, Laure Haak, and Head of Memberships Latin America, Ana Heredia, co-author a document explaining how the ORCID API is supporting the interoperability in the integrated, collaborative, and sustainable Brazilian system of research information
Análisis narratológico de Hay palabras que los peces no entienden, de María Fernanda Heredia.
No full textEn la presente investigación se realiza un análisis narratológico de Hay palabras que los peces no entienden, de la autora ecuatoriana María Fernanda Heredia, aplicando la teoría de la narratología desarrollada por Mieke Bal en La teoría de la narrativa y la de Manuel Corrales en Iniciación a la narratología.
Con este análisis literario se determinó qué aspectos estructurales, formales y técnicos utilizó la autora en su creación literaria, haciendo especial hincapié en los siguientes elementos: acontecimientos, actantes, tiempo, espacio, narración, oponente, destinatario, destinador, y focalización.
Basándose en este modesto estudio, se podría iniciar a los jóvenes lectores en el análisis literario básico y contemplar aspectos inéditos de Hay palabras que los peces no entienden dentro del conjunto de la narrativa de María Fernanda Heredia.This research presents a narratological analysis of Hay palabras que los peces no entienden by the ecuadorian author María Fernanda Heredia, by applying the theory of the narratology developed by Mieke Bal in La teoría de la narrativa and Iniciación a la narratología by Manuel Corrales.
Within the literary analysis determined that structural, formal and technical aspects used the author in her literary creation. This analysis focuses mainly on the following items: events, actants, time, space, narration, opponent, recipient, sender, and targeting. This modest study could guide young readers to start at the basic literary analysis and consider other unknown aspects within the whole narrative of Maria Fernanda Heredia
Megarthrus cavianae Rodriguez, Navarrete-Heredia & Arriaga-Varela 2020, sp. nov.
No full text<i>Megarthrus cavianae</i> Rodríguez, Navarrete-Heredia & Arriaga-Varela sp. nov. <p>(Figs 27-39)</p> <p>http://zoobank.org:act: F4814244-2EA7-493D-8086-01CC754585C0</p> <p> <b>Type material.</b> (3♂, 2♀). <b>Holotype</b> ♂: labeled <b>“</b> MÉXICO: Veracruz, San Andrés Tlalnelhuayocan, Piedra Parada, 19°30’58.6’’N 97°00’34.4’’W, 1522 msnm, Fragmento de Bosque Mesófilo de Montaña ripario, Cernido de Hojarasca húmeda, extraída en Winkler, 5.V.2013, F. Alvarado, E. Arriaga, R. Chavero cols”, in CZUG. <b>Paratypes (4)</b>: labeled <b>“</b> MÉXICO: Veracruz, Xico, Matlalapa, 19°26’24.8»N 97°02’37.2»W, 1532 msnm. Fragmento de Bosque Mesófilo de Montaña ripario, Cernido de Hojarasca húmeda, extraída en embudo de Berlesse, 20.VI.2012. F. Escobar, F. Alvarado, R. Chavero cols”, 1♀ in CZUG, 1♂ in IEXA, and 1 ♂, 1♀ in MHNG.</p> <p> <b>Description.</b> Similar to <i>M. chiapas</i> from which it differs as follows: Habitus as in Fig. 29. Combined length of pronotum and elytra = 1.0 - 1.4 mm; maximal pronotal width = 0.7 - 1.1 mm. Antennae as in Fig. 36. Elytra with humeral callus strongly convex; disc with humeral callus strongly convex, two conspicuous swellings similar to humeral callus along anterior and posterior portions of suture, moderately depressed posteriorly along lateral edge. Male: Frontoclypeal area not modified. Protarsomere 1 lacking ventral patch of modified adhesive setae. Mesofemora (Fig. 33) as long as metafemora. Mesotibiae (Fig. 34) shorter than metatibiae (Fig. 35), the latter slightly compressed subapically. Peg-like setae present only on mesotrochanters (Fig. 33; arranged in a single row), on distal two thirds of mesotibiae (Fig. 34; grouped in a field) and on distal half of metatibiae (Fig. 35; grouped in a field). Apical segments of abdomen similar to those in Figs 10-15 & 18; tergite VIII as in Figs 38, with apex sinuate in dorsal view. Aedeagus as in Figs 32 & 37, with dorsal valve triangular.</p> <p> <i>Female</i>: Abdominal tergite forming a medioapical projection, with dorsal outline subangulate subapically in lateral view VIII (Fig. 31). Sternite VIII as in Fig. 30. Genital segments similar to those in Figs 19-21; gonocoxal plate without mediodorsal ridge.</p> <p> <b>Comparisons and diagnostic notes.</b> <i>Megarthrus cavianae</i> Rodríguez, Navarrete-Heredia & Arriaga-Varela <b>sp. nov.</b> is similar to <i>M. chiapas</i> Cuccodoro <b>sp. nov</b>., from which it differs by its more pronounced elytral relief, as well as several other features detailed in <i>Comparisons and diagnostic notes</i> under <i>M. chiapas</i>.</p> <p> <b>Distribution and natural history.</b> <i>Megarthrus cavianae</i> Rodríguez, Navarrete-Heredia & Arriaga-Varela <b>sp. nov</b>. is apparently restricted to Mountain Cloud Forests in the south of the Transmexican Volcanic Belt (Fig. 39). The specimens were collected from sifted leaf litter in riparian remnants of cloud forests at an elevation of approximately 1500 m.</p> <p> <b>Etymology.</b> The specific name is a composite word in honor to Carmen Moreno Jiménez, Virginia de Jesús Rodríguez, Ana Cricelia Rodríguez, and Ana María Jiménez, in recognition of their unconditional support of the first author.</p>Published as part of <i>Rodríguez, William David, Navarrete-Heredia, José L., Arriaga-Varela, Emmanuel & Cuccodoro, Giulio, 2020, Two new species of Megarthrus (Coleoptera, Staphylinidae, Proteininae) from Mexican Cloud Forests, pp. 571-583 in Zootaxa 4778 (3)</i> on pages 578-581, DOI: 10.11646/zootaxa.4778.3.8, <a href="http://zenodo.org/record/3828825">http://zenodo.org/record/3828825</a>
El imaginarismo según Rey y Heredia
No full textThe philosopher José María Rey y Heredia (1818-1861) wrote in 1865 the book Teoría Transcendental de las Cantidades Imaginarias, which is considered the first significant theory published in Spain about the way to consider complex numbers. Its author developed a metaphysical model of algebra to merge and harmonize philosophy and mathematics by means of imaginary quantities understanding, and taking as reference the Kant's table of categories. En este artículo se exponen los fundamentos filosófico-matemáticos y los resultados matemáticos que recoge la obra de Rey y se analizan en su contexto histórico. The contents of Rey's book are described in this article, from the philosophical and mathematical fundamentals to the mathematical results, analyzing them by taking into account their historical contextLa Teoría trascendental de las cantidades imaginarias (1865), del filósofo José María Rey y Heredia (1818-1861) se considera la primera referencia significativa publicada en España sobre la interpretación de los números complejos. Su autor pretende desarrollar una metafísica del álgebra que aúne y armonice la filosofía con las matemáticas a través de la interpretación de las cantidades imaginarias, basándose en la tabla de las categorías elaborada por Kant
Análisis narratológico de la obra “Hay palabras que los peces no entienden” de María Fernanda Heredia
No full textEn la presente investigación se realiza un análisis narratológico de la obra Hay palabras que los peces no entienden, de la autora ecuatoriana María Fernanda Heredia, aplicando la teoría de la narratología desarrollada por Mieke Bal en La teoría de la narrativa y la de Manuel Corrales en Iniciación a la narratología.
Con este análisis narratológico se determinó qué aspectos estructurales, formales y técnicos utilizó la autora en su creación literaria, haciendo especial hincapié en los siguientes elementos: acontecimientos, actantes, tiempo, espacio, narración, oponente, destinatario y focalización.
La obra se desarrolla dentro de un ambiente de ternura, afectividad, amor y autenticidad en la casa de los padres, colegio, en la casa de Julián y la tienda de mascotas, que se refleja en cada capítulo de la novela escrita por Heredia que se centra en fomentar valores.
Basándose en este modesto estudio, se podría iniciar y motivar a los jóvenes lectores en el análisis narratológico básico y contemplar aspectos inéditos de Hay palabras que los peces no entienden dentro de la narrativa de Heredia, así fomentar la lectura en la educación.In the present investigation a narratological analysis of the work is There are words that the fish do not understand, of the Ecuadorian author Maria Fernanda Heredia, applying the theory of the narratology developed by Mieke Bal in The theory of the narrative and the one of Manuel Corrales in Introduction to narratology.
With this narratological analysis, it was determined what structural, formal and technical aspects the author used in her literary creation, with special emphasis on the following elements: events, actants, time, space, narration, opponent, target and target.
The work takes place within an atmosphere of tenderness, affection, love and authenticity in the house of the parents, school, in the house of Julian and the pet store, which is reflected in each chapter of the novel written by Heredia that is Focuses on fostering values.
Based on this modest study, it would be possible to initiate and motivate the young readers in the basic narratological analysis and to contemplate unpublished aspects of There are words that the fish do not understand within the narrative of Heredia, thus foment the reading in the education
Compressive Sensing for the Photonic Mixer Device [electronic resource] : Fundamentals, Methods and Results /
No full textMiguel Heredia Conde aims at finding novel ways to fit the valuable mathematical results of the Compressive Sensing (CS) theory to the specific case of the Photonic Mixer Device (PMD).To this end, methods are presented that take profit of the sparsity of the signals gathered by PMD sensors. In his research, the author reveals that CS enables outstanding tradeoffs between sensing effort and depth error reduction or resolution enhancement. Contents Phase-Shift-Based Time-of-Flight Imaging Systems Fundamentals of Compressive Sensing High Resolution Characterization of PMD Pixels Compressive Sensing in Spatial and Time-Frequency Domains CS-PMD: A Compressive Sensing ToF Camera based on the Photonic Mixer Device Target Groups< Lecturers and students of computer science, electronic engineering and robotics Researchers and trainees working in application areas where depth sensing is required The Author Dr. Miguel Heredia Conde studied industrial engineering with specialization in automation and electronics at the University of Vigo, Spain. He defended his PhD thesis in engineering at the University of Siegen, Faculty of Science and Technology, Germany. There, he is currently head of the research group on compressive sensing for time-of-flight sensors at the Center for Sensor Systems (ZESS).Phase-Shift-Based Time-of-Flight Imaging Systems -- Fundamentals of Compressive Sensing -- High Resolution Characterization of PMD Pixels -- Compressive Sensing in Spatial and Time-Frequency Domains -- CS-PMD: A Compressive Sensing ToF Camera based on the Photonic Mixer Device.Miguel Heredia Conde aims at finding novel ways to fit the valuable mathematical results of the Compressive Sensing (CS) theory to the specific case of the Photonic Mixer Device (PMD).To this end, methods are presented that take profit of the sparsity of the signals gathered by PMD sensors. In his research, the author reveals that CS enables outstanding tradeoffs between sensing effort and depth error reduction or resolution enhancement. Contents Phase-Shift-Based Time-of-Flight Imaging Systems Fundamentals of Compressive Sensing High Resolution Characterization of PMD Pixels Compressive Sensing in Spatial and Time-Frequency Domains CS-PMD: A Compressive Sensing ToF Camera based on the Photonic Mixer Device Target Groups< Lecturers and students of computer science, electronic engineering and robotics Researchers and trainees working in application areas where depth sensing is required The Author Dr. Miguel Heredia Conde studied industrial engineering with specialization in automation and electronics at the University of Vigo, Spain. He defended his PhD thesis in engineering at the University of Siegen, Faculty of Science and Technology, Germany. There, he is currently head of the research group on compressive sensing for time-of-flight sensors at the Center for Sensor Systems (ZESS)
Análisis desde las dimensiones actanciales en las obras: Amigo se escribe con H y Hay palabras que los peces no entienden de María Fernanda Heredia
No full textEl presente estudio, titulado “Análisis desde las dimensiones actanciales en las obras: Amigo se escribe con H y Hay palabras que los peces no entienden de María Fernanda Heredia” se planteó como objetivo general efectuar un análisis literario a los personajes que aparecen en las dos novelas de la autora ecuatoriana María Fernanda Heredia. Para alcanzar dicho objetivo general, se debió aplicar, en primera instancia, el método bibliográfico que comprende la recopilación –por medio de fuentes bibliográficas como del internet - de los conceptos y términos cruciales para el estudio. También se aplicó el método inductivo, pues partir del estudio pormenorizado de las novelas de Heredia, se obtuvieron varias conclusiones generales en relación a las funciones actanciales de los personajes.This study, entitled "Analysis from the actantial dimensions in the works: Friend is written with H and there words that fish do not understand Maria Fernanda Heredia" had as its main objective to make a literary analysis to the characters in the two Ecuadorian novels of author Maria Fernanda Heredia. To achieve this overall objective, had to be applied in the first instance, the literature method comprising -through the compilation of bibliographic sources such as the internet - crucial concepts and terms for the study. the inductive method was also applied, as from detailed study of the novels of Heredia, several general conclusions were obtained regarding the actantial roles of the characters
- …
