Color, luz y belleza en Marciano Capela.

Sin resume

The Effects of Milling Degree and Type of Bag on Fungal Infection and Some Chemical Contents of Stored Milled Rice

The effects of milling degree and type of bag on fungal infection of stored milled rice were investigated together with some chemical contents (glucose, amylose, protein and total lipid contents), and changes in moisture content. Rice var. IR 64 with different milling degrees (85, 90, 95 and 100%) packed in jute and polypropylene bags (1 kg of milled rice/bag) were stored under laboratory conditions with temperature between 24.3-27.3 C and relative humidity 52.6-81.9% for 3 months. The initial moisture content (m.c.) of milled rice was ± 14%. Three replications (3 bags) were used for each treatment. Each bag was put individually and was arranged randomly on a wooden pallet. The results showed that in general, the increase of milling degree and duration of storage decreased the m.c. Type of bag did not give significant differences on the m.c. Twenty eight fungal species were isolated from rice with different milling degree and bag type during storage. The predominant species was Aspergillus Candidas. Total fungal population decreased with the increase of milling degree and duration of storage. Bag type did not give significant differences on total fungal population. In general, the increase of milling degree increased glucose content. Glucose content in milled rice packed in jute bag was higher than that in polypropylene bag. Glucose content tended to decrease with the increase of storage duration. The increase of milling degree increased amylose content in milled rice. Amylose content of milled rice packed in jute bag was lower than that in polypropylene bag. The increase of storage duration decreased amylose content in milled rice. In general, protein content decreased with the increase of milling degree and duration of storage. 1 type did not give significant differences on protein content. Total lipid content decreased with the increase of milling degree and duration of storage. Total lipid content of milled rice packed in jute bag was lower than that in polypropylene bag, but based on chemical analysis the difference was not significant. Based on statistical analyses, correlation between the m.c. and total lipid content with total fungal population was positive. There was no correlation between glucose, amylose and protein contents with total fungal population. Rice with high milling degree can be stored safely for long period, but it has low chemical (nutritional) contents

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Presentation for Online Educa Madrid 2005, related to the article http://hdl.handle.net/1820/32

La leucoplasia oral. Su implicación como lesión precancerosa

La leucoplasia es definida actualmente en base a un concepto esencialmente clínico. En este sentido, se propone un diagnóstico provisional de leucoplasia basado en criterios clínicos y un diagnóstico definitivo para el que se requiere la eliminación de los factores etiológicos y, ante lesiones persistentes, el examen histopatológico. La consideración de la leucoplasia como lesión precancerosa proviene esencialmente de los estudios de seguimiento en los que se constata su transformación maligna. Pese a que el diagnóstico de displasia es esencialmente subjetivo y a la existencia de algún trabajo reciente que no encuentra relación entre ésta y la evolución posterior de las leucoplasias, la presencia de displasia epitelial en el examen histológico se considera actualmente como el indicador más importante de una mayor probabilidad de transformación maligna de la leucoplasia. Entre otros factores relacionados con un peor pronóstico se consideran el que se trate de una leucoplasia idiopática, las formas clínicas no homogéneas, la localización en cara ventrolateral de la lengua y suelo de boca y un tamaño mayor de 1 centímetro.The current definition of leukoplakia is based on an essentially clinical concept. Therefore, both a provisional diagnosis of leukoplakia based on clinical criteria and a definite diagnosis for which etiological factors need to be eliminated and, should there be persistent lesions, a histological examination is required, are accepted. Follow up studies in which a malignant transformation has been observed have resulted in leukoplakia being considered as a precancerous disorder. Despite the fact that the diagnosis of dysplasia is subjective and certain recent studies have not found any association between this and the development of leukoplakia, the presence of epithelial dysplasia in the histological examination is currently considered to be the most important indicator of a higher possibility of malignant transformation of the leukoplakia. Among other factors that may indicate a worse prognosis are: if the leukoplakia is idiopathic, if clinical forms are non-homogenous, if it is located on the ventrolateral side of the tongue and the floor of the mouth, and if it is over 1 cm. (0.40 inches) in size

Oral lichenoid lesions related to contact with dental materials: A literature review

Oral lichenoid lesions related to contact are defined as oral-cavity eruptions with an identifiable etiology, and are clinically and histologically similar to oral lichen planus. Within this group are found oral lichenoid lesions related to contact with dental materials (OLLC), the most common being those related to silver amalgam. Currently, it remains difficult to diagnose these lesions due to the clinical and histopathological similarity with oral lichen planus and other oral mucosa lesions of lichenoid characteristics. In the present paper, we carry out an updated review of the tests for, and the different characteristics of OLLC, which may aid the diagnosis. For this review, we made searches in the Pubmed® and Cochrane® databases. Among the literature we found several published papers, from which we have used review papers, case papers, cohort studies, case and control studies, and a meta-analysis study. After carrying out this review, we can conclude that the diagnosis of these lesions is still difficult and controversial. However, there are different aspects in the clinical presentation, pathological study and results obtained when replacing suspect materials, which, when taken together, may be useful when establishing the final diagnosis of OLLC

Candidosis en subplaca protésica en relación con el diámetro del poro del acrílico : estudio comparativo

Los pacientes edéntulos portadores de prótesis total removible, desarrollan con gran frecuencia candidosis en subplaca protésica. En algunos adquiere severidad, por producir lesiones en mucosa oral, que pueden repercutir sobre los tejidos de soporte, en el resto de los tejidos orales y provocar un estado de gran inflamación, que genere reabsorción en el hueso contiguo. El objetivo de este trabajo fue establecer posibles correlaciones entre la calidad de los acrílicos utilizados (textura, porosidad, diámetro del poro) y la mayor o menor incidencia de candidosis, con el objeto de mejorar la prevención y la salud buco dental sobre la base del control de los materiales utilizados.The patients that were wearing a totally removable denture developed a high frequency of Candida on the base denture and, in some cases, developed a severe condition producing injury in the oral mucous membrane, which can rebound over and around the supporting tissues and cause inflammation that can also lead to extensive bone reabsorption. The aim of this work was to establish the possible relationship between the quality of the acrylic, from which the prosthesis is made (texture, porosity, and pores diameter), and the majar or minor Candidosis incidences.The purpose of this study was also to seak improvement in buccal dental health based upon the dental materials test control setting.Fil: Patiño Ramos, Irma. Universidad Nacional de Cuyo. Facultad de OdontologíaFil: Bongiovanni, Isabel. Universidad Nacional de Cuyo. Facultad de OdontologíaFil: Telechea, Adriana del Valle. Universidad Nacional de Cuyo. Facultad de Ciencias Médicas. Área MicrobiologíaFil: Godoy, Diego. Universidad Nacional de Cuyo. Facultad de OdontologíaFil: Martín, Alberto José. Universidad Nacional de Cuyo. Facultad de OdontologíaFil: Lottero, Graciela. Universidad Nacional de Cuyo. Facultad de Odontologí

José Joaquín de Olmedo : La victoria de Junín. Canto a Bolívar

Poeta y prócer de la independencia, su obra literaria es simple y breve en comparación con su agitada vida política entre Ecuador,su patria, y Venezuela, su segunda cuna. Coinciden los críticos en que dos son las composiciones que sobresalen y justifican la obra de Olmedo: "La Victoria de Junín" y "Al general Flores, vencedor en Miñarica". Sin lugar a dudas, ambas presentan rasgos de buena creación, colorido, ritmo y emoción. La primera, más extensa, tiene mayor complejidad en su estructura. En la segunda, más breve, se manifiesta un mayor equilibrio. La victoria o "canto" de Junín ofrece muchas vías de análisis. Es obra muy conocida, estudiada y criticada. Nuestro objetivo es relacionar su estructura compleja con la intención genérica; analizar, a partir de un fragmento, algunos elementos relevantes de esta composición y juzgar, a manera de síntesis, lo analizado como caracteres del estilo romántico en Hispanoamérica.Fil: Calderón de Puelles, Mariana. Universidad Nacional de Cuy