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1
artículo
Publicado 2019
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Objective: To evaluate healing in partial skin graft donor sites using a skin substitute compared to a xenograft in patients with different diseases requiring partial skin grafting. Materials and methods: This paper presents a report of 20 patients between 19 and 65 years from the Plastic Surgery Unit of the Hospital María Auxiliadora in Lima Metropolitan Area, Peru, between December 2017 and June 2018, where healing was evaluated in partial skin graft donor sites. An interventional, analytical, prospective and longitudinal study was conducted using a double-blind design to control possible biases. For the statistical significance analysis, nonparametric tests with a 95 % confidence interval were used. Results: Using a skin substitute, a better healing quality of donor sites of epithelialization was seen compared with xenografting. Both techniques were evaluated with the Vancouver ...
2
tesis doctoral
Publicado 2019
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Descargue el texto completo en el repositorio institucional de la Aston University: https://doi.org/10.48780/publications.aston.ac.uk.00041929
3
artículo
Publicado 2016
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Densities of DL-2-aminobutiric acid in aqueous solutions of nitrate sodium were determined every 5 K at temperatures ranging from 283,15 to 318,15 K using an Anton Paar DMA 5000 vibrating tube densitometer. The apparent molar volume, the infinite dilution apparent molar volume, the second derivative of the infinite dilution partial molar volume with respect to temperature, the partial molar volume of transfer at infinite dilution, and the number of hydration were calculated. It was found that the values of the second derivative of the apparent molar volume limit with respect to temperature are negative at all concentrations of mixed solvent; This implies that the solute-solvent interactions are favored and that the DL2-aminobutiric acid acts as a disruptor of the structure of the solvent.
4
artículo
Publicado 2019
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Explicit Finite Diferences Methods (FDM) are used for numerical simulations in seismic problems. In these cases the medium is heterogeneous and for the guarantee of a precise and stable solution there is the need to use refined discretizations for spatial and temporal variables, resulting in large-scale problems. In this paper we present the explicit FDM for the wave equation in a heterogeneous domain and show the results through computer simulations.
5
artículo
Publicado 2019
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Explicit Finite Diferences Methods (FDM) are used for numerical simulations in seismic problems. In these cases the medium is heterogeneous and for the guarantee of a precise and stable solution there is the need to use refined discretizations for spatial and temporal variables, resulting in large-scale problems. In this paper we present the explicit FDM for the wave equation in a heterogeneous domain and show the results through computer simulations.
6
objeto de conferencia
Publicado 2024
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“Okara” is an industrial residue generated from the production of soy milk. This residue can be transformed into okara flour, a higher value-added product that can be used in the baking industry. The main objective of this research is to determine the optimal substitution of wheat flour with okara flour without altering the process or the rheological characteristics in the preparation of panettone. As part of the methodology, the following technological characteristics were evaluated: fibre size, moisture percentage, height variations, final product weights, variation in beating times, acidity, and water activity. The results of this research showed that the optimal substitution of okara flour in the panettones is 4.2% (okara flour/wheat flour ratio of 0.05/1), resulting in characteristics similar to a standard panettone (without substitution), with a higher percentage of water reten...
7
artículo
Publicado 2020
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El texto completo de este trabajo no está disponible en el Repositorio Académico UPC por restricciones de la casa editorial donde ha sido publicado.
8
artículo
Publicado 2016
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Two proteases from the glandular venom of Loxosceles laeta spider were isolated using a column of Sephadex G-100 gel molecular filtration equilibrated with 0,05M ammonium acetate buffer pH 5,0. One of them is a metalloprotease inhibited by 5 mM EDTA (60,5%) and the other is a serinoprotease inhibited by 5 mM PMSF (93,3%). The metalloproteinase had activity on casein and dimethylcasein while the serinoprotease had activity on citrated human plasma. They showed different molecular weights by PAGE-SDS: 35 kDa and 15,9 kDa. In addition both were antigenic against commercial loxoscelic antivenom by immunodifusion assays.
9
artículo
Publicado 2023
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Criminal Compliance is an emerging issue in Peru, since its development and implementation in Law 30424 in 2016. And it is due to such premature condition that after years of its enactment, certain deficiencies can be observed in the results obtained.That is why the author, in this article is responsible for analyzing the regulation, along with the development and implementation of the same in this period. It raises the different theoretical points that affect the usefulness of the regulations, and that represent the need for a reform that provides the necessary tools to legal entities for a correct implementation of criminal compliance.
10
artículo
Publicado 2023
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Criminal Compliance is an emerging issue in Peru, since its development and implementation in Law 30424 in 2016. And it is due to such premature condition that after years of its enactment, certain deficiencies can be observed in the results obtained.That is why the author, in this article is responsible for analyzing the regulation, along with the development and implementation of the same in this period. It raises the different theoretical points that affect the usefulness of the regulations, and that represent the need for a reform that provides the necessary tools to legal entities for a correct implementation of criminal compliance.
11
artículo
Publicado 2021
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Fixed prosthodontics is performed in different materials to replace absent dental structures, which can be totally metallic or metallic coated with ceramic, being generally widely used. At present, we have proposals for fixed prostheses with better aesthetic results, such as metal-free prostheses, which allow the professional to reproduce better and in more detail the dental anatomy and in this case also the gingival character. Materials such as zirconia are available that have properties such as biocompatibility, low thermal conductivity, resistance to corrosion, naturalness and aesthetics. In addition, new technological methods are available with which very satisfactory results can be achieved, such as the use of CAD-CAM technology. The present clinical case is focused on the replacement of dental organs and soft tissue, for the rehabilitation of the anterior sector, with materials wit...
12
artículo
Publicado 2018
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The alteration of the vertical dimension can be caused by different factors, among which, we find partial loss of dental pieces, pathological wear of the occlusal surfaces that are caused by different etiologies, being one of the most common bruxism. This results in alterations in the stomatognathic system that causes aesthetic and functional sequelae. That is why the importance of theoretical and clinical knowledge of partial edentulism when the vertical dimension is altered, because as we know there are currently many biomaterials and techniques to rehabilitate a patient with these characteristics, however, all part of a correct diagnosis. Traditionally different methods have been used to establish the appropriate vertical dimension; however, there is not yet a single method capable of providing total accuracy. The objective of this work is to share the approach to a patient with alter...
13
artículo
Publicado 2018
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Introduction. Prolonged tracheal intubation can cause stenosis. In extensive lesions, they have performed transplants or prosthesis placement without good results. Transplantation frequently evolves with necrosis, delayed healing, and ischemia. The anterior segment of the tracheal wall was transplanted to preserve the vascular supply of the trachea. Objectives. Verify that the transplant of a previous patch of the trachea, allows to expand the tracheal lumen in its anterior part and overcome the problems derived from the complete transplant or the insertion of prosthesis and evaluate the viability, macroscopic and microscopic changes of the transplant in two groups of rabbits, one of which will receive treatment with immunosuppressants. Methods. Experimental, prospective, randomized and controlled study. We used 15 rabbits of exocriated strains. In 5, autotransplantation was performed to...
14
artículo
Publicado 2022
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This study evaluated the pollutant levels (NO2, SO2, CO, and O3), air quality index (AQI) and the influence of meteorological variables and coronavirus disease (COVID-19) pandemic on the air quality in Rio de Janeiro. The data set used comprises periods before (March-April, 2019) and during pandemic (March-April, 2020). According to the AQI results, on most days, the air quality was ranked as “good”. Brazilian air quality standards for SO2, O3, and NO2 were not exceeded in any of the monitoring stations during partial lockdown, while CO exceeded in all periods in one site due to industrial emission. Comparing both periods, descriptive statistics for the meteorological parameters presented no differences, which suggests similar conditions. However, when evaluated week by week in 2020, weather conditions presented some differences that probably affected pollutant concentrations. The co...
15
artículo
Publicado 2016
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The objective of this research was evaluate the effect of the partial substitution of wheat flour by soybean meal (HS) in the technological and sensory characteristics of cupcakes, in order to develop a high-protein food for school-age students. Common wheat flour was replaced with four different percentages of HS: 5% (F1), 10% (F2), 15% (F3) and 20% (F4), these were compared with a control sample with 0% (F0) of HS. The technological characteristics evaluated were weight loss, water activity (Aw), instrumental color, bulk and texturometria samples, for 12 days. The results showed that the substitution of HS improves firmness of cupcakes and helps moisture retention, a substitution until F2 was not significantly different from F0. A test to 45 panelists with a hedonic scale for sensory evaluation was used; three sensory characteristics (color, flavor and texture) and purchase intent were...
16
artículo
Publicado 2016
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The objective of this research was evaluate the effect of the partial substitution of wheat flour by soybean meal (HS) in the technological and sensory characteristics of cupcakes, in order to develop a high-protein food for school-age students. Common wheat flour was replaced with four different percentages of HS: 5% (F1), 10% (F2), 15% (F3) and 20% (F4), these were compared with a control sample with 0% (F0) of HS. The technological characteristics evaluated were weight loss, water activity (Aw), instrumental color, bulk and texturometria samples, for 12 days. The results showed that the substitution of HS improves firmness of cupcakes and helps moisture retention, a substitution until F2 was not significantly different from F0. A test to 45 panelists with a hedonic scale for sensory evaluation was used; three sensory characteristics (color, flavor and texture) and purchase intent were...
17
artículo
Publicado 2012
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If we modelling the flux of subterranean waters in an aquiferous, implicitly modelling the flux of mobile polluting agents dissolves, keeping in mind this premise, our analysis of the flux of polluting agents in the aquiferous thing of Ayamonte, will remain represented in the study of the flux of the subterranean waters in a hydrogeological halfback regular guest and it provide with uniforms, agree that detail in the later analysis of this document. However, the treatment, must notice that for polluting in suspension and other type of polluting agents, the treatment it differs of the analysis that here carry out. By means of the application of the finite differences and the language of fortran programming for the solution of the flux and transports of polluting agents in water subterranean this work has developed in cabinet and excel. The method of used solution in the solution of this p...
18
artículo
Publicado 2012
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If we modelling the flux of subterranean waters in an aquiferous, implicitly modelling the flux of mobile polluting agents dissolves, keeping in mind this premise, our analysis of the flux of polluting agents in the aquiferous thing of Ayamonte, will remain represented in the study of the flux of the subterranean waters in a hydrogeological halfback regular guest and it provide with uniforms, agree that detail in the later analysis of this document. However, the treatment, must notice that for polluting in suspension and other type of polluting agents, the treatment it differs of the analysis that here carry out. By means of the application of the finite differences and the language of fortran programming for the solution of the flux and transports of polluting agents in water subterranean this work has developed in cabinet and excel. The method of used solution in the solution of this p...
19
artículo
Publicado 2017
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The study seeks to determine the effects that two training programs types for foreignlanguage as represented by the partial immersion bilingual program to a program ofbilingual education intensification of a second language have on the development ofstudent cognitive abilities,. The study has been carried out with 130 students in the sixthgrade of elementary school. The results show global differences in the general and specificabilities of the evaluated student with a better performance of the group that studieswith a methodology of intensification. The study distinguishes differences in the areas ofattention and concentration, adaptation, reading accuracy, spelling phonics, arithmeticand mathematical problem solving, standing out comparatively higher scoring studentswho study following a method of intensification. The areas that show no differences arethe reason reading comprehension, ...
20
artículo
Publicado 2017
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The study seeks to determine the effects that two training programs types for foreignlanguage as represented by the partial immersion bilingual program to a program ofbilingual education intensification of a second language have on the development ofstudent cognitive abilities,. The study has been carried out with 130 students in the sixthgrade of elementary school. The results show global differences in the general and specificabilities of the evaluated student with a better performance of the group that studieswith a methodology of intensification. The study distinguishes differences in the areas ofattention and concentration, adaptation, reading accuracy, spelling phonics, arithmeticand mathematical problem solving, standing out comparatively higher scoring studentswho study following a method of intensification. The areas that show no differences arethe reason reading comprehension, ...
