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1
tesis de grado
Publicado 2020
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RESUMEN Los factores que afectan la colocación ideal del brackets incluyen la forma y el tamaño de los dientes, los pacientes suelen presentar problemas tanto de ortodoncia como de restauración, es necesario restaurar los dientes o colocar una restauración provisional antes, durante o después del tratamiento de ortodoncia, si un diente incisivo izquierdo es más corto que el otro Incisivo derecho, colocar, en posición correcta y precisa los brackets tendrá una influencia importante en el resultado del tratamiento de ortodoncia, para el tratamiento de anomalías dentarias en los incisivos se colocan carillas, las de resinas compuesta, fueron la elección en el presente informe, cuyo objetivo fue Restaurar funcional y estéticamente el incisivo central superior izquierdo, con alteración de tamaño, mediante el uso de resina compuesta a fin de ubicar correctamente el Brackets y recu...
2
Publicado 2022
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RESUMEN El caso clínico que se presenta tiene como objetivo Efectuar un tratamiento restaurativo estético y funcional con carillas de resina compuesta, del Incisivo Central superior izquierdo, que presenta, alteración de tamaño, para posicionar correctamente los brackets. En el presente caso clínico, doy a conocer el tratamiento de una carilla de composite , para conseguir el adecuado posicionamiento de los brackets, teniendo en cuenta la altura exacta en que se deben colocar, en cada diente, usualmente las carillas estéticas se colocan después de realizado el tratamiento ortodóntico pero en este caso la colocación fue primero , para este caso clínico se realiza colocándose una carilla de composite en el diente 2.1 empleando técnica directa, una de las preguntas que realizan los pacientes es que si después de realizarse un tratamiento de carillas dentales podrían someterse ...
3
patente
Las realizaciones de la presente invención proporcionan compuestos (tales como compuestos de Fórmula (I), compuestos de Fórmula (II) y diversas realizaciones de los mismos). También se proporcionan composiciones que comprenden esos compuestos. Se incluyen métodos para su preparación. Además, se incluyen usos de los compuestos, como la administración y el tratamiento de enfermedades (p. ej., cáncer e infecciones). Existe la necesidad de encontrar fármacos para proporcionar ayuda (como tratamiento o cura) a animales enfermos que tengan uno o más efectos positivos, como actividad anticancerígena, antiinflamatoria, inmunomoduladora, antibacteriana, inmunosupresora y antiprotozoaria. incluyendo, por ejemplo, actividad tripanocida, leishmanicida y antipalúdica. Por ejemplo, la enfermedad de Chagas o tripanosomiasis americana, causada por el parásito protozoario flagelado Trypanos...
4
artículo
Publicado 2024
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Objective: This systematic review aimed to investigate the changes in the composition of the subgingival microbiota among subjects with normo-weight, overweight and obesity, in conditions of periodontal health and disease. Materials and Methods: The protocol for this study was designed following PRISMA guidelines. Records were identified using different search engines (PubMed/MedLine, Scopus and Web of Science). Observational studies, in human subjects diagnosed with obesity (BMI >30kg/m2) and periodontal disease (gingivitis and periodontitis), on the analysis of subgingival microbiota were selected. Eight articles were included. Results: The subgingival microbiota of 1,229 subjects (n=894 exposure group and n=335 control group) was analyzed. Periodontal pathogens were the most common bacteria detected in subjects with obesity and periodontitis (Porphyromonas gingivalis, Tannerella fo...
5
artículo
Publicado 2021
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The nervous control of salivary secretion is exclusive to the autonomic nervous system, which has a sympathetic part, which originates from the thoracic segments; and a parasympathetic, which occurs through nerve signals from the salivary nuclei. Nerve control begins with gustatory stimuli, which are mediated by NCV3 (third branch of the trigeminal nerve), NC VII (facial nerve), and NCIX (glosopharyngeal nerve). In addition, the pathway that follows the stimulation for salivary secretion is: preganglionary fibers, ganglion, and fibers postanglionary parasympathetic fibers. Saliva is composed of 95 to 99 % water and the remaining percentage corresponds to solids that are subdivided into organic, where protein compounds such as enzymes and immunoglobulins are found; non-protein such as urea and inorganic compounds that behave as electrolytes. In addition,...
6
artículo
Publicado 2021
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The nervous control of salivary secretion is exclusive to the autonomic nervous system, which has a sympathetic part, which originates from the thoracic segments; and a parasympathetic, which occurs through nerve signals from the salivary nuclei. Nerve control begins with gustatory stimuli, which are mediated by NCV3 (third branch of the trigeminal nerve), NC VII (facial nerve), and NCIX (glosopharyngeal nerve). In addition, the pathway that follows the stimulation for salivary secretion is: preganglionary fibers, ganglion, and fibers postanglionary parasympathetic fibers. Saliva is composed of 95 to 99 % water and the remaining percentage corresponds to solids that are subdivided into organic, where protein compounds such as enzymes and immunoglobulins are found; non-protein such as urea and inorganic compounds that behave as electrolytes. In addition,...
7
artículo
Publicado 2024
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This article develops a reading from narratology and the formal elements of painting to account for the particularities of the novel The predominance of faith (2020) by the Peruvian narrator Gonzalo Portals Zubiate (Lima, 1961-2023). The work establishes relationships between the paintings of the Baroque artist Michelangelo Merisi da Caravaggio (Milan, 1571) and the narrative elements of the novel. In addition, it is proposed that in the novel there is a cynical narrator who hides information from the reader. In this way, the article affirms that the novel The predominance of faith establishes new levels of interpretation and intertextuality.
8
artículo
Publicado 2009
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The anterior sector problems are very common in our professional practice and became vital importance to make a suitable rehabilitation in these cases; we can not do a good rehabilitation if we do not know the basic characteristics, both aesthetic and functional. Today the composites are a valid alternative for the restoration of the anterior sector, since they offer to us a conservative and aesthetic possibility, but independently of the material to use we have to based on certain rules or parameters to realize a suitable rehabilitation. In this article the basic criteria to keep in mind are detailed to restore the anterior sector as well as the skills on having used composites.
9
artículo
Publicado 2023
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The evolution of direct restorative materials for posterior dental pieces has led to the generation of simpler processes that are easier for the clinician to perform. This is how bulk fill composite resins arise, in order to simplify the technique and provide the clinician with speed and practicality when performing the restoration. Although it is true that these materials have been used, there is still a lot of ignorance on the side of the professional about how to use them correctly. In addition to certain limitations in published research since they are relatively new materials on the market. This research aims to review the literature in indexed databases to date on bulk fill resins, detailing clinical trials, composition and classification.
10
artículo
The dental bleaching is a procedure that provides good clinical results, but sometimes there is a need to combine the bleaching with other procedures in order to optimize the results such as the use of composite restorations. The present case report describes the application of the dental bleaching procedures by carbamide peroxide 16 % and direct restorations with composite resin in the resolution of a clinical case. The aim was to describe correctly the bleaching technique using trays combined with the application of composite resins in a clear and simple way. The result was satisfactory for the patient since it was possible to bleach the teeth and improve their shape, returning to a color more suitable for the patient´s age. It is possible to conclude that the proper managing of the dental bleach combined with the direct restorations of composite resin offering a safe and effective al...
11
artículo
In the teaching of writing and composition of texts, what to teach?, what to teach for?, how to teach? are recurring questions what a lot of teachers make to themselves about this area, specially when they work at the university. Therefore, these unanswered questions are related to what topic professors teach and what methodological strategies they use. Exactly for that reason, the content of the current article is part of the sixth chapter of the research which I made for my Ph.D. thesis and whose original title is Syntactic strategies to improve the text coherence and cohesion in the universities students’ wordings. As we know, cohesion is the grammatical characteristic which all the text show to ensure the link between two components. For that purpose, we use some elements called mechanism cohesion. These cohesion elements are related between the ...
12
artículo
Publicado 2020
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Introduction: Epling brevicalyx savory grows in the southern Andes of Peru (Ayacucho, Apurimac, Cuzco and Puno), between altitudes of 3300-3800 m, within the chemical composition of the essential oil of Satureja brevicalyx can find several constituents as mentonas, pulegonas, linalool. Traditionally it has been used as a digestive, against gastritis, flatulence and antispasmodic.Objective: To identify the chemical composition of the ethanol extract, hexane / ethanol and the aqueous brevicalyx Satureja Epling for secondary metabolites that are of interest in biological therapeutics.M e t h o d s : T h e l e a v e s w e r e e x u d e d a n d dehydrated at room temperature, obtaining a greenish dry powder which underwent successive extractions with solvents of increasing polarity. To the obtained extracts phytochemicals identification assays.R e s u l t s : ...
13
artículo
Publicado 2020
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Introduction: Epling brevicalyx savory grows in the southern Andes of Peru (Ayacucho, Apurimac, Cuzco and Puno), between altitudes of 3300-3800 m, within the chemical composition of the essential oil of Satureja brevicalyx can find several constituents as mentonas, pulegonas, linalool. Traditionally it has been used as a digestive, against gastritis, flatulence and antispasmodic.Objective: To identify the chemical composition of the ethanol extract, hexane / ethanol and the aqueous brevicalyx Satureja Epling for secondary metabolites that are of interest in biological therapeutics.M e t h o d s : T h e l e a v e s w e r e e x u d e d a n d dehydrated at room temperature, obtaining a greenish dry powder which underwent successive extractions with solvents of increasing polarity. To the obtained extracts phytochemicals identification assays.R e s u l t s : ...
14
artículo
Publicado 2006
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The Composed Parabolic Collector (CPC) is made up of two parabolic surfaces whose center is the same. In such a center, a black-painted copper tube is placed to transform the sunlight that comes to the copper surface heating it; the CPC concentrates the light in the center, and it can even receive rays with oblique incidence according to its angle of acceptance, the one that could be increased with copper fins welded to the copper tubes. This set also allows to receive and to concentrate diffuse light in a cloudy day. Four Collectors of 1.00 m x 1.25 m are connected to an electrical therma of 500 liters, that will store the water warmed up by the collectors, and through the thermosiphon effect, this one has also has electrical resistance in case there were several non-sunny days.
15
artículo
Publicado 2006
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The Composed Parabolic Collector (CPC) is made up of two parabolic surfaces whose center is the same. In such a center, a black-painted copper tube is placed to transform the sunlight that comes to the copper surface heating it; the CPC concentrates the light in the center, and it can even receive rays with oblique incidence according to its angle of acceptance, the one that could be increased with copper fins welded to the copper tubes. This set also allows to receive and to concentrate diffuse light in a cloudy day. Four Collectors of 1.00 m x 1.25 m are connected to an electrical therma of 500 liters, that will store the water warmed up by the collectors, and through the thermosiphon effect, this one has also has electrical resistance in case there were several non-sunny days.
16
artículo
Publicado 2017
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Purpose – This paper aims to examine the valuation precision of composite models in each of six key industries in South Africa. The objective is to ascertain whether equity-based composite multiples models produce more accurate equity valuations than optimal equity-based single-factor multiples models. Design/methodology/approach – This study applied principal component regression and various mathematical optimisation methods to test the valuation precision of equity-based composite multiplesmodels vis-à-vis equity-based single-factor multiples models. Findings – The findings confirmed that equity-based composite multiples models consistently produced valuations that were substantially more accurate than those of single-factor multiples models for the periodbetween 2001 and 2010. The research results indicated that composite models produced up to 67 per cent more accurate valuatio...
17
artículo
Publicado 2024
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Vallenato is a musical genre from the Colombian Caribbean, related to the history of this region located on the shores of the Caribbean Sea, originally performed by minstrels, usually traveling peasants who rode on mules along the Magdalena Grande region with an accordion in their hands. The savanna landscapes and town festivals were a source of inspiration to compose songs that over time became classics. The purpose of this research is to analyze the rhetorical components within the narratives of the original vallenato genre, particularly the presence of elements such as inventio, dispositio and elocutio. For this purpose, the corpus was created from the selection of some of the main minstrels of this musical genre and, in addition, compositions by these performers. It was found that the original vallenato genre is mainly made up of true stories, for the most part, told in the form of a...
18
artículo
Publicado 2003
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The need in the world market for high-quality laminated products, such as the high productivity of the laminating process, requires increasing the performance levels of laminating cylinders. The rolling cylinder is the main tool or matrix to transform metals and their alloys in the rolling process, which can be hot or cold transformed into products such as bars, squares, profiles, plates, etc. The history of its manufacture is linked to the evolution of the methods used to make iron, steel and other non-ferrous metals. In the last decades there have been several technological advances in the manufacture of laminating cylinders, among which one can distinguish that of double casting or composite casting.
19
artículo
Publicado 2003
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The need in the world market for high-quality laminated products, such as the high productivity of the laminating process, requires increasing the performance levels of laminating cylinders. The rolling cylinder is the main tool or matrix to transform metals and their alloys in the rolling process, which can be hot or cold transformed into products such as bars, squares, profiles, plates, etc. The history of its manufacture is linked to the evolution of the methods used to make iron, steel and other non-ferrous metals. In the last decades there have been several technological advances in the manufacture of laminating cylinders, among which one can distinguish that of double casting or composite casting.
20
tesis de grado
Publicado 2018
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Objetivos: Determinar el volumen de contracción de dos resinas de nanopartículas expuestas a una lámpara LED, tomando muestras fotopolimerizadas a los 10 y 20 segundos. Diseño : Estudio de diseño experimental, de corte transversal, prospectivo y analitico. Material y Método: Se comparó el volumen de contraccion de dos resinas de nanoparticulas la resina A (Filtek Z350 XT de 3M) y resina B (PALFIQUE LX5 de Tukuyama) en donde se realizo 40 muestras de cada una de las cuales se dividieron en dos grupos, un grupo de 20 muestras con un tiempo de exposición de 10 segundos para ambas resinas, las cuales fueron medidas con un micrómetro para asi poder obtener el volumen de contracción. Los promedios se compararon por analisis estadistico (T-student,p <0.05). Resultados : Se encontro que los volumenes de contracción para la resina A a los 20 segundos es de 034105 mm3(1.24805%)y a los 1...
