... Dynamic behaviour of high speed railway bridges in interoperable lines. Artigo em Livro de Ac... more ... Dynamic behaviour of high speed railway bridges in interoperable lines. Artigo em Livro de Actas de Conferência Internacional. Autores: Delgado, R. Rui Calçada Ilídio Faria Diogo Ribeiro José Rui Pinto Helder Figueiredo. Área: 2 Engenharia e tecnologia > 2.1 Engenharia civil ...
In a wastewater treatment system with trickling filters, the removal of organic load and nitrogen... more In a wastewater treatment system with trickling filters, the removal of organic load and nitrogen can occur simultaneously. One of the important factors of the nitrification in trickling filters is that, contrary to what happens with activated sludge where the hydraulic retention time is 4 to 8 hours, in trickling filters it is 5 to 15 minutes, so there is more possibilities to achieve nitrification in activated sludge that in trickling filters. The objective of this work was to evaluate the behavior of the nitrification process in the trickling filters of the Wastewater Treatment Plant “El Punto” located in Tepic, Nayarit, Mexico, modifyng your hydraulic load. The laboratory results indicated low nitrogen removal not complying with the maximum permissible limits for discharge to a river; also analyzed some parameters that influ nce the nitrification kinetics such s temperature, pH, dissolved oxygen and alkalinity. Finally, process scenarios were simulated with the GPS-X software to...
Values of the electrical resistivity, temperature coefficient of resistivity, thermopower, and su... more Values of the electrical resistivity, temperature coefficient of resistivity, thermopower, and superconducting transition temperature for a series of Laââââ/sub x/Al/sub x/ metallic glasses prepared both as ''splat-cooled'' foils and ''melt-spun'' ribbons are reported. Differences between the two types of samples are discussed. We argue that the dominant contribution to the conductivity and thermopower is from La d states.
The European Space of Superior Education and specifically The Declaration of Bolonia signed by th... more The European Space of Superior Education and specifically The Declaration of Bolonia signed by the Ministers responsible for Higher Education in 29 European countries are boosting a renewing of the traditional teaching methods in our universities. Most disciplines have incorporated and adapted the information technologies to their study object in order to achieve a more graphic and dynamic professor-student relationship. The requirement of cutting dawn theory and enhancing practice aspects have also led to intensify the efforts to update and design experiments. The laboratory experiments may be useful tools to hook the students but in the environmental sciences, an object studied in the lab is far away of its natural reality and functioning. Soils are dynamic entities in the nature. Because soil students are in the city and do not have a regular contact with the field, our aim was to teach soils operating in full capacity in the city. Taking advantage of the gardens of our universit...
Cellular and molecular biology (Noisy-le-Grand, France), 2001
The objective of this study was to determine the effect of beta-chemokine secretion on HIV infect... more The objective of this study was to determine the effect of beta-chemokine secretion on HIV infection of placental macrophages (HF) as compared to monocyte-derived macrophages (MDM). For this purpose, we measured chemokine production in supematants of LPS stimulated and unstimulated HF and MDM. LPS stimulated cultures produced 3 to 10 times higher levels of MIP-1alpha, MIP-1beta and RANTES than unstimulated cultures. The level of MIP-1beta was the highest of the three chemokines secreted upon stimulation of HF cells. Cell cultures were inoculated with HIV-BaL, a R5 virus, and tested for p24 antigen and chemokine production at days 5 and 10 post-infection (P.I.). We did not find significant differences in the level of chemokines produced by HIV-1-infected and uninfected MDM and HF cells. However, significant differences were found in p24 antigen released by unstimulated and LPS stimulated cells. In contrast to HF cells, MDM cultures showed a significant inhibition of p24 antigen produ...
Nefrología : publicación oficial de la Sociedad Española Nefrologia, 2007
1. Nefrologia. 2007;27(5):542-59. [Developing a Clinical Performance Measures System for hemodial... more 1. Nefrologia. 2007;27(5):542-59. [Developing a Clinical Performance Measures System for hemodialysis, Quality Group, Spanish Society of Nephrology]. [Article in Spanish]. López Revuelta K, Barril G, Caramelo C, Delgado ...
Mutation Research/Fundamental and Molecular Mechanisms of Mutagenesis, 2000
Breast carcinoma is a public health problem worldwide. It is known that both genetic and environm... more Breast carcinoma is a public health problem worldwide. It is known that both genetic and environmental factors are important for breast carcinogenesis and that structural and/or functional alterations at p53 gene are commonly observed in breast tumors. In addition, polymorphisms of several genes in either their coding or non-coding sequences have been found related to cancer risk and/or clinicopathological characteristics of tumors. In this study we have evaluated the intron 1 BglII polymorphism of the p53 gene with a PCR-based approach in 117 cases of breast cancer and 102 healthy women and its association with the immunohistochemical expression of p53 in the tumors. The results showed that the presence of the polymorphism (allele 2) is highly associated with the tumor expression of p53 (p<0.0001) and that there is a trend for increased frequency of allele 2 in cases than in controls (p=0.2376). These data suggest that the germ-line variation in the intron 1 of the p53 gene could produce functional or structural changes of the protein that is reflected by its abnormal expression.
in vitro e in vivo. Pero también se han llevado a cabo estudios en seres humanos encontrando resu... more in vitro e in vivo. Pero también se han llevado a cabo estudios en seres humanos encontrando resultados similares. Así hay evidencia de diversas alteraciones que produjo el DES en los órganos reproductores de varones cuando lo usaron sus madres durante el ...
... Dynamic behaviour of high speed railway bridges in interoperable lines. Artigo em Livro de Ac... more ... Dynamic behaviour of high speed railway bridges in interoperable lines. Artigo em Livro de Actas de Conferência Internacional. Autores: Delgado, R. Rui Calçada Ilídio Faria Diogo Ribeiro José Rui Pinto Helder Figueiredo. Área: 2 Engenharia e tecnologia > 2.1 Engenharia civil ...
In a wastewater treatment system with trickling filters, the removal of organic load and nitrogen... more In a wastewater treatment system with trickling filters, the removal of organic load and nitrogen can occur simultaneously. One of the important factors of the nitrification in trickling filters is that, contrary to what happens with activated sludge where the hydraulic retention time is 4 to 8 hours, in trickling filters it is 5 to 15 minutes, so there is more possibilities to achieve nitrification in activated sludge that in trickling filters. The objective of this work was to evaluate the behavior of the nitrification process in the trickling filters of the Wastewater Treatment Plant “El Punto” located in Tepic, Nayarit, Mexico, modifyng your hydraulic load. The laboratory results indicated low nitrogen removal not complying with the maximum permissible limits for discharge to a river; also analyzed some parameters that influ nce the nitrification kinetics such s temperature, pH, dissolved oxygen and alkalinity. Finally, process scenarios were simulated with the GPS-X software to...
Values of the electrical resistivity, temperature coefficient of resistivity, thermopower, and su... more Values of the electrical resistivity, temperature coefficient of resistivity, thermopower, and superconducting transition temperature for a series of Laââââ/sub x/Al/sub x/ metallic glasses prepared both as ''splat-cooled'' foils and ''melt-spun'' ribbons are reported. Differences between the two types of samples are discussed. We argue that the dominant contribution to the conductivity and thermopower is from La d states.
The European Space of Superior Education and specifically The Declaration of Bolonia signed by th... more The European Space of Superior Education and specifically The Declaration of Bolonia signed by the Ministers responsible for Higher Education in 29 European countries are boosting a renewing of the traditional teaching methods in our universities. Most disciplines have incorporated and adapted the information technologies to their study object in order to achieve a more graphic and dynamic professor-student relationship. The requirement of cutting dawn theory and enhancing practice aspects have also led to intensify the efforts to update and design experiments. The laboratory experiments may be useful tools to hook the students but in the environmental sciences, an object studied in the lab is far away of its natural reality and functioning. Soils are dynamic entities in the nature. Because soil students are in the city and do not have a regular contact with the field, our aim was to teach soils operating in full capacity in the city. Taking advantage of the gardens of our universit...
Cellular and molecular biology (Noisy-le-Grand, France), 2001
The objective of this study was to determine the effect of beta-chemokine secretion on HIV infect... more The objective of this study was to determine the effect of beta-chemokine secretion on HIV infection of placental macrophages (HF) as compared to monocyte-derived macrophages (MDM). For this purpose, we measured chemokine production in supematants of LPS stimulated and unstimulated HF and MDM. LPS stimulated cultures produced 3 to 10 times higher levels of MIP-1alpha, MIP-1beta and RANTES than unstimulated cultures. The level of MIP-1beta was the highest of the three chemokines secreted upon stimulation of HF cells. Cell cultures were inoculated with HIV-BaL, a R5 virus, and tested for p24 antigen and chemokine production at days 5 and 10 post-infection (P.I.). We did not find significant differences in the level of chemokines produced by HIV-1-infected and uninfected MDM and HF cells. However, significant differences were found in p24 antigen released by unstimulated and LPS stimulated cells. In contrast to HF cells, MDM cultures showed a significant inhibition of p24 antigen produ...
Nefrología : publicación oficial de la Sociedad Española Nefrologia, 2007
1. Nefrologia. 2007;27(5):542-59. [Developing a Clinical Performance Measures System for hemodial... more 1. Nefrologia. 2007;27(5):542-59. [Developing a Clinical Performance Measures System for hemodialysis, Quality Group, Spanish Society of Nephrology]. [Article in Spanish]. López Revuelta K, Barril G, Caramelo C, Delgado ...
Mutation Research/Fundamental and Molecular Mechanisms of Mutagenesis, 2000
Breast carcinoma is a public health problem worldwide. It is known that both genetic and environm... more Breast carcinoma is a public health problem worldwide. It is known that both genetic and environmental factors are important for breast carcinogenesis and that structural and/or functional alterations at p53 gene are commonly observed in breast tumors. In addition, polymorphisms of several genes in either their coding or non-coding sequences have been found related to cancer risk and/or clinicopathological characteristics of tumors. In this study we have evaluated the intron 1 BglII polymorphism of the p53 gene with a PCR-based approach in 117 cases of breast cancer and 102 healthy women and its association with the immunohistochemical expression of p53 in the tumors. The results showed that the presence of the polymorphism (allele 2) is highly associated with the tumor expression of p53 (p<0.0001) and that there is a trend for increased frequency of allele 2 in cases than in controls (p=0.2376). These data suggest that the germ-line variation in the intron 1 of the p53 gene could produce functional or structural changes of the protein that is reflected by its abnormal expression.
in vitro e in vivo. Pero también se han llevado a cabo estudios en seres humanos encontrando resu... more in vitro e in vivo. Pero también se han llevado a cabo estudios en seres humanos encontrando resultados similares. Así hay evidencia de diversas alteraciones que produjo el DES en los órganos reproductores de varones cuando lo usaron sus madres durante el ...
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