estudio expone el potencial que tienen los productos derivados de la ganadería que cuentan con cr... more estudio expone el potencial que tienen los productos derivados de la ganadería que cuentan con criterios de sostenibilidad; esto es, productos diferenciados basados en tecnologías y sistemas de manejo más sostenibles. 1-Resumen de un modelo de negocio / Oportunidades de negocio en las cadenas de valor sostenibles para carne y leche Foto Alianza de Bioversity International y CIAT Un estudio realizado por investigadores de la Alianza de Bioversity International y CIAT, en el que se observa que alrededor del 70% de un grupo de consumidores colombianos de alimentos de diferentes niveles de ingresos y educación manifestó su disposición a pagar por carne de res producida de manera sostenible. Foto nicepng.com Resumen de un modelo de negocio Este documento está autorizado para su uso bajo la licencia Creative Commons Atribución 4.0 Internacional. Noviembre de 2021.
The reduction of macroeconomic vulnerability in emerging markets is at the core of the research a... more The reduction of macroeconomic vulnerability in emerging markets is at the core of the research agenda. Liability dollarization plays a vital role and its implications have been addressed in the literature via a “financial accelerator ” mechanism. If we asses vulnerability in terms of the evolution of investment, we claim that, in absence of an asset price channel, departures from a pure float will mitigate vulnerability and improve welfare. Conversely, with an active asset price channel a tighter exchange rate policy will have marginal effects on welfare and vulnerability when compared to that associated to a reduction in liability dollarization.
Breast milk is widely recognized as the best source of nutrition for both full term and premature... more Breast milk is widely recognized as the best source of nutrition for both full term and premature babies. We aimed to identify clinical results of the implementation of a breast milk bank for premature infants under 37 weeks in a level III hospital. 722 neonates under 37 weeks, hospitalized in the Neonatal intensive care unit (ICU), who received human breast milk from the institution’s milk bank 57% (n = 412) vs. mixed or artificial 32% (n = 229), at day 7 of life. An exploratory data analysis was carried out. Measures of central tendency and dispersion were used, strength of association of odds ratio (OR) and its confidence intervals (95% confidence interval (CI)). 88.5% had already received human milk before day 7 of life. Those who received human milk, due to their clinical condition, had 4 times a greater chance of being intubated (OR 4.05; 95% CI 1.80–9.11). Starting before day 7 of life decreases the opportunity to develop necrotizing enterocolitis by 82% (adjusted odds ratio ...
Medical image quality is crucial to obtaining reliable diagnostics. Most quality controls rely on... more Medical image quality is crucial to obtaining reliable diagnostics. Most quality controls rely on routine tests using phantoms, which do not reflect closely the reality of images obtained on patients and do not reflect directly the quality perceived by radiologists. The purpose of this work is to develop a method that classifies the image quality perceived by radiologists in MR images. The focus was set on lumbar images as they are widely used with different challenges. Three neuroradiologists evaluated the image quality of a dataset that included T1-weighting images in axial and sagittal orientation, and sagittal T2-weighting. In parallel, we introduced the computational assessment using a wide range of features extracted from the images, then fed them into a classifier system. A total of 95 exams were used, from our local hospital and a public database, and part of the images was manipulated to broaden the distribution quality of the dataset. Good recall of 82% and an area under c...
La imagen corporativa de los clubes deportivos de Quito … Mi tren Barcelona: Debolsillo • 277 pág... more La imagen corporativa de los clubes deportivos de Quito … Mi tren Barcelona: Debolsillo • 277 páginas Patti Smith • 2018 Más allá de cierta mirada exótica sobre Bolaño, Murakami o Frida, este es un libro conmovedor: un homenaje a la literatura, al arte, y a la vida, si no son todas lo mismo. Y es, también, un canto amoroso al café. Esa bebida despiadadamente deliciosa, sin la cual muchos mortales no encontraríamos sentido al despertar. El café, como bebida estimulante, fue durante muchos años consideraba como una pócima endemoniada, pues impulsaba a quienes la bebían a despertarlos de su letargo, exacerbar los ánimos, creer que la felicidad existía. Asociada también a la esclavitud, es decir, a una economía dominante, ha sido producto de reflexiones sociógicas, históricas, políticas. Patti Smith deja de lado cualquier resquicio de este tipo de visión, no hay en ella-en ningún sentido del libro-una voluntad de analizar, conjeturar o, peor aún, de sentenciar los usos y sentires alrededor del café. A ella le interesa, como trotamundo que siempre ha sido, acercarse sensitivamente a los placeres que produce el café, las cafeterías y las personas que los visitan. Durante las páginas de estas memorias, los cafés saltan de un lugar a otro, como escenas amorosas, a partir de las cuales Smith rememora personajes, escenas y emociones que, en su momento, le marcaron el corazón. Y, como un hilo sentimental, está la imagen, la presencia, la voz de su esposo, Fred, con quien recorriera el mundo. Este libro es también un homenaje al amor que sigue ahí, a pesar de que el hombre de su vida ha partido ya. Este es un libro sobre el tren de la memoria, y el amor reside ahí, como una mariposa en letargo, dispuesta a desplegar sus alas. Cada capítulo se constituye como uno de los vagones que habitan, precisamente, en la memoria de la autora. Y la memoria, devenida en literatura, resulta un acto de comunicación humana. De Genet a Burroughs, de Bolaño a García Márquez, de los Estados Unidos a México y de ahí a Europa, Smith recorre la estela de la que ha vivido, de lo que ha sido, como si le memoria, el acto de la evocación, fuese ese mismo tren que regresa por los caminos recorridos. No hay en ese regreso un tono de tragedia, ni de dolor, quizás sí de melancolía, pues, como sabemos, la vida es un fulgor, un fulgor entre dos tinieblas, como decía Sartre. La prosa de Smith está revestida de un ritmo musical, sensible. Es que ella misma es una estrella consumada del rock. Quizás por esa razón, sus palabras danzan sobre el papel como las notas musicales de una composición. Cada capítulo-acompañado de ilustraciones y fotografias que dan cuenta de sus viajes, sus estancias, sus gustos o sus obsesiones-se engarza como un todo musical. Al fondo, como un paisaje sonoro, late el mundo, la cultura, el sexo, la estética, es decir, todo aquello que registra la mirada siempre atenta y sugestiva de una de las artistas más singulares del mundo contemporáneo.
El presente artículo analiza el caso de Barón Rojo Sur y de la Fundación Un Distrito en Paz en cl... more El presente artículo analiza el caso de Barón Rojo Sur y de la Fundación Un Distrito en Paz en clave del barrismo social, pues a partir de las acciones que se inscriben en este tipo de barrismo, se abre un espacio para repensar la noción de Aguante desarrollada por teóricos argentinos. La investigación se realizó con metodología cualitativa que fue aplicada a integrantes de la barra y de la fundación. Entre los principales hallazgos se encontró que, para el caso particular de B.R.S. los procesos de barrismo social van de la mano de formas de ciudadanía activa y participativa y de procesos sociales y políticos. Además, el proceso realizado por la Fundación Un Distrito en Paz, que es liderado por integrantes de la barra, evidencia la consolidación y formalización de un proceso organizativo de barrismo social. Este tipo de procesos no podrían ser explicados, completamente, por la visión tradicional que se tiene del aguante. Razón por la cual, se propone un cambio en la perspectiva para...
Este artículo muestra cómo un espacio arquitectónico, como es un refugio temporal, se puede conve... more Este artículo muestra cómo un espacio arquitectónico, como es un refugio temporal, se puede convertir en una herramienta de comunicación y concienciación muy potente. Así, los factores estrictamente arquitectónicos como son el sistema constructivo, su capacidad espacial, estética o su capacidad para albergar diferentes usos, son agentes de mediación de gran valor y potencia divulgativa. Es decir, la estructura arquitectónica amplía su misión y se convierte en un medio de comunicación de valores y puntos de vista, ampliando su capacidad comunicadora. De esta manera, a través de acciones concretas de comunicación BTL (Bellow The Line) la arquitectura se convierte en centro de la acción comunicativa.
In order to test if orally supplied Euglena sp. cells modulate the physiological status of bivalv... more In order to test if orally supplied Euglena sp. cells modulate the physiological status of bivalves during bioremediation procedures, we evaluated the effect of Euglena gracilis diet on the immune response, oxidative balance and metabolic condition of Diplodon chilensis exposed to sewage water pollution. Mussels were fed for 90 days with E. gracilis (EG) or Scenedesmus vacuolatus (SV, control diet), and then exposed for 10 days at three sites along the Pocahullo river basin: 1) an unpolluted site, upstream of the city (control, C); 2) upstream (UpS) and 3) downstream (DoS) from the main tertiary-treated sewage discharge, in the city of San Martín de los Andes, Northwest Patagonia, Argentina. Our results show that the total hemocyte number decreases while pollution load increases along the river course for both, EG and SV mussels. Phagocytic activity is higher in EG mussels than in SV ones under all conditions. Reactive oxygen species (ROS) production in hemocytes increases with the ...
Background Adequate folate levels are essential for successful pregnancy outcomes. We aimed to st... more Background Adequate folate levels are essential for successful pregnancy outcomes. We aimed to study the relationship between placental mRNA and protein levels of folate transporters to birth weight. Methods Placental folate transporters (FOLR1, RFC1 and HCP1/PCFT) mRNA and protein levels in basal (BP) and chorionic plate (CP) of small (SGA), appropriate (AGA) and large (LGA) for gestational age term infants (?37 weeks gestation, n = 111) were determined by real-time PCR and Western blot respectively. Results FOLR1 and HCP1/PCFT mRNA were lower in both plates of SGA and LGA placentas compared to AGA (p < 0.01) and RFC1 mRNA was lower only in CP (p < 0.02). RFC1 protein levels were lower in BP of SGA (p < 0.05) and LGA (p < 0.01), and FOLR1 protein levels were lower in CP of SGA (p < 0.02) and LGA (p < 0.01) groups compared to AGA. HCP1/PCFT protein levels remained unchanged in all groups. Conclusion Placentas of SGA and LGA groups showed a reduc
Recibido 30 diciembre 2013. Aceptado 05 mayo 2014. Resumen Los objetivos planteados fueron determ... more Recibido 30 diciembre 2013. Aceptado 05 mayo 2014. Resumen Los objetivos planteados fueron determinar la biometría de las semillas, registrar la respiración celular en el proceso de imbibición, evaluar el efecto inductor de la germinación de compuestos químicos y analizar el crecimiento inicial. La respiración celular durante la imbibición se midió por reducción del azul de metileno y del Janus Green B. El efecto inductor de la germinación de cinco compuestos químicos fue evaluado. El crecimiento inicial se registró con estereoscopio. Los resultados mostraron que las semillas tienen en promedio un peso de 520±172 mg, largo de 13,50±1,76 mm, ancho de 10,61±1,14 mm y espesor de 4,68±0,62 mm. Estas variables mostraron correlaciones significativas (r de 0,494 a 0,897 y p < 0,001). Las semillas fueron metabólicamente activas durante la imbibición, el cual se evidenció por la reducción de ambos aceptores electrónicos. El nitrito de sodio y el cianuro de potasio indujeron la germinación de las semillas en >90% y 65% respectivamente. El crecimiento hasta plántula constó de seis etapas y ocurrió en un periodo de 22 días después del brote de la radícula. En conclusión, las semillas de M. dubia muestran una amplia variación en sus datos biométricos (peso, largo, ancho y espesor), pero muestran correlaciones significativas entre sí. Asimismo, las semillas son metabólicamente activas en el proceso de imbibición y su germinación es inducida por el nitrito de sodio y el cianuro de potasio. Además, el crecimiento inicial hasta plántula ocurre en un periodo de 22 días después del brote de la radícula y consta de seis etapas bien diferenciadas.
In this paper we will present a classification theorem for continuous quasi-uninorms. We will pro... more In this paper we will present a classification theorem for continuous quasi-uninorms. We will prove that the only continuous quasi-uninorms are t-norms, t-conorms and isomorphism of the Dombi operator \(a\odot b=\frac{ab}{(1-a)(1-b)+ab}\). In other words, continuous quasi-uninorms with neutral element 1 are t-norms, continuous quasi-uninorms with neutral element 0 are t-conorms, and all continuous quasi-uninorms with neutral element in \((0,1)\) are isomorphics, with Dombi operator being their prototypical representative.
Cell growth & differentiation : the molecular biology journal of the American Association for Cancer Research, 1999
IFN-alpha exerts prominent regulatory functions on the immune system. One such effect is the inhi... more IFN-alpha exerts prominent regulatory functions on the immune system. One such effect is the inhibition of proliferation of in vitro stimulated T lymphocytes. The exact physiological function of this activity is not known, but it has been implicated in the antiviral effects of IFN, its antitumor action in T-cell malignancies, and the regulation of the in vivo T-cell response. Here, we have investigated the mechanism underlying the IFN-alpha-mediated growth inhibition of normal human PHA- and IL-2-stimulated T lymphocytes by an analysis of how IFN-alpha treatment influences known molecular events that normally accompany the transition from quiescence to proliferation in these cells. IFN-alpha treatment was found to profoundly block S-phase entry of stimulated T lymphocytes. This correlated with a strong inhibition of IL-2-induced changes in G1-regulatory proteins, including the prevented up-regulation of G1 cyclins and cyclin-dependent kinases as well as an abrogation of mitogen-indu...
The author describes an operating guideline for local treatment in cases dealing with sternum sur... more The author describes an operating guideline for local treatment in cases dealing with sternum surgery as part of bypass surgery and saphenous vein surgery in a post-anesthesia recuperation ward for patients having cardiac problems, trying to prevent and reduce the distinct local complications which can occur such as infection or dehiscence of a wound.
After an impressive 12 point reduction in Peruvian monetary poverty, questions have been raised a... more After an impressive 12 point reduction in Peruvian monetary poverty, questions have been raised about the extent in which these figures mask deprivation in several other aspects critical for human development. We propose using the Alkire-Foster multidimensional headcount to address this issue, and devise a simple comparison framework to measure the tension between the incidence of monetary poverty and the overall level of deprivation based on the multidimensional measure. We select six dimensions and their respective indicators for the Peruvian case, and apply this framework using data for 2004 and 2008. Results indicate that we now face a larger risk of classifying as non-poor individuals who still endure significant deprivation if we rely on the conventional monetary dimension. In addition, inter and intraregional comparisons show that deprivations endured by the multidimensional poor are similar across regions and concentrated on the health and dwelling conditions dimensions, in particular, on the lack of adequate water and sanitation services. This last result reveals an opportunity to focalize public investment efforts.
The reduction of macroeconomic vulnerability in emerging markets is now at the core of the resear... more The reduction of macroeconomic vulnerability in emerging markets is now at the core of the research agenda. Liability dollarization plays a vital role in the understanding of vulnerability and its implications have been addressed in the literature via a "financial accelerator" mechanism. We can identify two channels by which the financial accelerator can be triggered. The first, operates via shocks on asset prices which, in turn, affect the realized return on capital and net worth. The second channel, depends on unanticipated movements in firm's debt burden which directly affect their net worth. Not surprisingly, liability dollarization plays an important role in the activation of this second channel since the unexpected component of a real depreciation can greatly magnify the debt burden of firms if their debt is denominated in dollars. Despite significant contributions to the understanding of the consequences of liability dollarization for output fluctuations, we believe some important extensions are now in order: (i) if we want to address the implications of the degree of dollarization, we need a general equilibrium model that admits firm's debt to be denominated in both local and foreign currency (the two models just described assume full liability dollarization); (ii) central bank's response to exchange rate innovations (given a degree of dollarization) must be assessed from a welfare point of view; and (iii) given a dollarization level and central bank's response to shocks, a new, encompassing, definition of vulnerability must be provided in order to adequately address the way in which it can be mitigated.
This invention relates to a laminated article, particularly to such an article comprising a gauze... more This invention relates to a laminated article, particularly to such an article comprising a gauze pack containing two or more gauzes such as are typically used as catalyst catchment or getter means in nitric acid production plants. Specifically, this invention provides a gauze pack segment suitable for locating in planar contiguous relationship with one or more further gauze pack segments to provide a gauze pack having a predetermined, for example, a regular geometric shape comprises a plurality of superposed gauze segments having at least when assembled substantially identical shape and area and held in fixed relationship one with another.
+)-Sclareolide has been synthesised from (+)-sclareol oxide in one step in high yield, by treatme... more +)-Sclareolide has been synthesised from (+)-sclareol oxide in one step in high yield, by treatment with peroxy acids under very mild conditions. The reaction pathway does not follow the usual oxidative cleavage of the double bond of (+)-sclareol oxide, but the key intermediate is a five-membered ring hemiketal. The direct conversion of a six-membered cyclic enol ether into a g-lactone is described for the first time.
Temperature and Time Optimization for Microwave Synthesis of Compound 3 2 Preparation of Compound... more Temperature and Time Optimization for Microwave Synthesis of Compound 3 2 Preparation of Compounds 1-4 3 Tabulated Spectroscopic Data for Compounds 1-4 4 Pictures of Compounds 1-4 in Ethanol
estudio expone el potencial que tienen los productos derivados de la ganadería que cuentan con cr... more estudio expone el potencial que tienen los productos derivados de la ganadería que cuentan con criterios de sostenibilidad; esto es, productos diferenciados basados en tecnologías y sistemas de manejo más sostenibles. 1-Resumen de un modelo de negocio / Oportunidades de negocio en las cadenas de valor sostenibles para carne y leche Foto Alianza de Bioversity International y CIAT Un estudio realizado por investigadores de la Alianza de Bioversity International y CIAT, en el que se observa que alrededor del 70% de un grupo de consumidores colombianos de alimentos de diferentes niveles de ingresos y educación manifestó su disposición a pagar por carne de res producida de manera sostenible. Foto nicepng.com Resumen de un modelo de negocio Este documento está autorizado para su uso bajo la licencia Creative Commons Atribución 4.0 Internacional. Noviembre de 2021.
The reduction of macroeconomic vulnerability in emerging markets is at the core of the research a... more The reduction of macroeconomic vulnerability in emerging markets is at the core of the research agenda. Liability dollarization plays a vital role and its implications have been addressed in the literature via a “financial accelerator ” mechanism. If we asses vulnerability in terms of the evolution of investment, we claim that, in absence of an asset price channel, departures from a pure float will mitigate vulnerability and improve welfare. Conversely, with an active asset price channel a tighter exchange rate policy will have marginal effects on welfare and vulnerability when compared to that associated to a reduction in liability dollarization.
Breast milk is widely recognized as the best source of nutrition for both full term and premature... more Breast milk is widely recognized as the best source of nutrition for both full term and premature babies. We aimed to identify clinical results of the implementation of a breast milk bank for premature infants under 37 weeks in a level III hospital. 722 neonates under 37 weeks, hospitalized in the Neonatal intensive care unit (ICU), who received human breast milk from the institution’s milk bank 57% (n = 412) vs. mixed or artificial 32% (n = 229), at day 7 of life. An exploratory data analysis was carried out. Measures of central tendency and dispersion were used, strength of association of odds ratio (OR) and its confidence intervals (95% confidence interval (CI)). 88.5% had already received human milk before day 7 of life. Those who received human milk, due to their clinical condition, had 4 times a greater chance of being intubated (OR 4.05; 95% CI 1.80–9.11). Starting before day 7 of life decreases the opportunity to develop necrotizing enterocolitis by 82% (adjusted odds ratio ...
Medical image quality is crucial to obtaining reliable diagnostics. Most quality controls rely on... more Medical image quality is crucial to obtaining reliable diagnostics. Most quality controls rely on routine tests using phantoms, which do not reflect closely the reality of images obtained on patients and do not reflect directly the quality perceived by radiologists. The purpose of this work is to develop a method that classifies the image quality perceived by radiologists in MR images. The focus was set on lumbar images as they are widely used with different challenges. Three neuroradiologists evaluated the image quality of a dataset that included T1-weighting images in axial and sagittal orientation, and sagittal T2-weighting. In parallel, we introduced the computational assessment using a wide range of features extracted from the images, then fed them into a classifier system. A total of 95 exams were used, from our local hospital and a public database, and part of the images was manipulated to broaden the distribution quality of the dataset. Good recall of 82% and an area under c...
La imagen corporativa de los clubes deportivos de Quito … Mi tren Barcelona: Debolsillo • 277 pág... more La imagen corporativa de los clubes deportivos de Quito … Mi tren Barcelona: Debolsillo • 277 páginas Patti Smith • 2018 Más allá de cierta mirada exótica sobre Bolaño, Murakami o Frida, este es un libro conmovedor: un homenaje a la literatura, al arte, y a la vida, si no son todas lo mismo. Y es, también, un canto amoroso al café. Esa bebida despiadadamente deliciosa, sin la cual muchos mortales no encontraríamos sentido al despertar. El café, como bebida estimulante, fue durante muchos años consideraba como una pócima endemoniada, pues impulsaba a quienes la bebían a despertarlos de su letargo, exacerbar los ánimos, creer que la felicidad existía. Asociada también a la esclavitud, es decir, a una economía dominante, ha sido producto de reflexiones sociógicas, históricas, políticas. Patti Smith deja de lado cualquier resquicio de este tipo de visión, no hay en ella-en ningún sentido del libro-una voluntad de analizar, conjeturar o, peor aún, de sentenciar los usos y sentires alrededor del café. A ella le interesa, como trotamundo que siempre ha sido, acercarse sensitivamente a los placeres que produce el café, las cafeterías y las personas que los visitan. Durante las páginas de estas memorias, los cafés saltan de un lugar a otro, como escenas amorosas, a partir de las cuales Smith rememora personajes, escenas y emociones que, en su momento, le marcaron el corazón. Y, como un hilo sentimental, está la imagen, la presencia, la voz de su esposo, Fred, con quien recorriera el mundo. Este libro es también un homenaje al amor que sigue ahí, a pesar de que el hombre de su vida ha partido ya. Este es un libro sobre el tren de la memoria, y el amor reside ahí, como una mariposa en letargo, dispuesta a desplegar sus alas. Cada capítulo se constituye como uno de los vagones que habitan, precisamente, en la memoria de la autora. Y la memoria, devenida en literatura, resulta un acto de comunicación humana. De Genet a Burroughs, de Bolaño a García Márquez, de los Estados Unidos a México y de ahí a Europa, Smith recorre la estela de la que ha vivido, de lo que ha sido, como si le memoria, el acto de la evocación, fuese ese mismo tren que regresa por los caminos recorridos. No hay en ese regreso un tono de tragedia, ni de dolor, quizás sí de melancolía, pues, como sabemos, la vida es un fulgor, un fulgor entre dos tinieblas, como decía Sartre. La prosa de Smith está revestida de un ritmo musical, sensible. Es que ella misma es una estrella consumada del rock. Quizás por esa razón, sus palabras danzan sobre el papel como las notas musicales de una composición. Cada capítulo-acompañado de ilustraciones y fotografias que dan cuenta de sus viajes, sus estancias, sus gustos o sus obsesiones-se engarza como un todo musical. Al fondo, como un paisaje sonoro, late el mundo, la cultura, el sexo, la estética, es decir, todo aquello que registra la mirada siempre atenta y sugestiva de una de las artistas más singulares del mundo contemporáneo.
El presente artículo analiza el caso de Barón Rojo Sur y de la Fundación Un Distrito en Paz en cl... more El presente artículo analiza el caso de Barón Rojo Sur y de la Fundación Un Distrito en Paz en clave del barrismo social, pues a partir de las acciones que se inscriben en este tipo de barrismo, se abre un espacio para repensar la noción de Aguante desarrollada por teóricos argentinos. La investigación se realizó con metodología cualitativa que fue aplicada a integrantes de la barra y de la fundación. Entre los principales hallazgos se encontró que, para el caso particular de B.R.S. los procesos de barrismo social van de la mano de formas de ciudadanía activa y participativa y de procesos sociales y políticos. Además, el proceso realizado por la Fundación Un Distrito en Paz, que es liderado por integrantes de la barra, evidencia la consolidación y formalización de un proceso organizativo de barrismo social. Este tipo de procesos no podrían ser explicados, completamente, por la visión tradicional que se tiene del aguante. Razón por la cual, se propone un cambio en la perspectiva para...
Este artículo muestra cómo un espacio arquitectónico, como es un refugio temporal, se puede conve... more Este artículo muestra cómo un espacio arquitectónico, como es un refugio temporal, se puede convertir en una herramienta de comunicación y concienciación muy potente. Así, los factores estrictamente arquitectónicos como son el sistema constructivo, su capacidad espacial, estética o su capacidad para albergar diferentes usos, son agentes de mediación de gran valor y potencia divulgativa. Es decir, la estructura arquitectónica amplía su misión y se convierte en un medio de comunicación de valores y puntos de vista, ampliando su capacidad comunicadora. De esta manera, a través de acciones concretas de comunicación BTL (Bellow The Line) la arquitectura se convierte en centro de la acción comunicativa.
In order to test if orally supplied Euglena sp. cells modulate the physiological status of bivalv... more In order to test if orally supplied Euglena sp. cells modulate the physiological status of bivalves during bioremediation procedures, we evaluated the effect of Euglena gracilis diet on the immune response, oxidative balance and metabolic condition of Diplodon chilensis exposed to sewage water pollution. Mussels were fed for 90 days with E. gracilis (EG) or Scenedesmus vacuolatus (SV, control diet), and then exposed for 10 days at three sites along the Pocahullo river basin: 1) an unpolluted site, upstream of the city (control, C); 2) upstream (UpS) and 3) downstream (DoS) from the main tertiary-treated sewage discharge, in the city of San Martín de los Andes, Northwest Patagonia, Argentina. Our results show that the total hemocyte number decreases while pollution load increases along the river course for both, EG and SV mussels. Phagocytic activity is higher in EG mussels than in SV ones under all conditions. Reactive oxygen species (ROS) production in hemocytes increases with the ...
Background Adequate folate levels are essential for successful pregnancy outcomes. We aimed to st... more Background Adequate folate levels are essential for successful pregnancy outcomes. We aimed to study the relationship between placental mRNA and protein levels of folate transporters to birth weight. Methods Placental folate transporters (FOLR1, RFC1 and HCP1/PCFT) mRNA and protein levels in basal (BP) and chorionic plate (CP) of small (SGA), appropriate (AGA) and large (LGA) for gestational age term infants (?37 weeks gestation, n = 111) were determined by real-time PCR and Western blot respectively. Results FOLR1 and HCP1/PCFT mRNA were lower in both plates of SGA and LGA placentas compared to AGA (p < 0.01) and RFC1 mRNA was lower only in CP (p < 0.02). RFC1 protein levels were lower in BP of SGA (p < 0.05) and LGA (p < 0.01), and FOLR1 protein levels were lower in CP of SGA (p < 0.02) and LGA (p < 0.01) groups compared to AGA. HCP1/PCFT protein levels remained unchanged in all groups. Conclusion Placentas of SGA and LGA groups showed a reduc
Recibido 30 diciembre 2013. Aceptado 05 mayo 2014. Resumen Los objetivos planteados fueron determ... more Recibido 30 diciembre 2013. Aceptado 05 mayo 2014. Resumen Los objetivos planteados fueron determinar la biometría de las semillas, registrar la respiración celular en el proceso de imbibición, evaluar el efecto inductor de la germinación de compuestos químicos y analizar el crecimiento inicial. La respiración celular durante la imbibición se midió por reducción del azul de metileno y del Janus Green B. El efecto inductor de la germinación de cinco compuestos químicos fue evaluado. El crecimiento inicial se registró con estereoscopio. Los resultados mostraron que las semillas tienen en promedio un peso de 520±172 mg, largo de 13,50±1,76 mm, ancho de 10,61±1,14 mm y espesor de 4,68±0,62 mm. Estas variables mostraron correlaciones significativas (r de 0,494 a 0,897 y p < 0,001). Las semillas fueron metabólicamente activas durante la imbibición, el cual se evidenció por la reducción de ambos aceptores electrónicos. El nitrito de sodio y el cianuro de potasio indujeron la germinación de las semillas en >90% y 65% respectivamente. El crecimiento hasta plántula constó de seis etapas y ocurrió en un periodo de 22 días después del brote de la radícula. En conclusión, las semillas de M. dubia muestran una amplia variación en sus datos biométricos (peso, largo, ancho y espesor), pero muestran correlaciones significativas entre sí. Asimismo, las semillas son metabólicamente activas en el proceso de imbibición y su germinación es inducida por el nitrito de sodio y el cianuro de potasio. Además, el crecimiento inicial hasta plántula ocurre en un periodo de 22 días después del brote de la radícula y consta de seis etapas bien diferenciadas.
In this paper we will present a classification theorem for continuous quasi-uninorms. We will pro... more In this paper we will present a classification theorem for continuous quasi-uninorms. We will prove that the only continuous quasi-uninorms are t-norms, t-conorms and isomorphism of the Dombi operator \(a\odot b=\frac{ab}{(1-a)(1-b)+ab}\). In other words, continuous quasi-uninorms with neutral element 1 are t-norms, continuous quasi-uninorms with neutral element 0 are t-conorms, and all continuous quasi-uninorms with neutral element in \((0,1)\) are isomorphics, with Dombi operator being their prototypical representative.
Cell growth & differentiation : the molecular biology journal of the American Association for Cancer Research, 1999
IFN-alpha exerts prominent regulatory functions on the immune system. One such effect is the inhi... more IFN-alpha exerts prominent regulatory functions on the immune system. One such effect is the inhibition of proliferation of in vitro stimulated T lymphocytes. The exact physiological function of this activity is not known, but it has been implicated in the antiviral effects of IFN, its antitumor action in T-cell malignancies, and the regulation of the in vivo T-cell response. Here, we have investigated the mechanism underlying the IFN-alpha-mediated growth inhibition of normal human PHA- and IL-2-stimulated T lymphocytes by an analysis of how IFN-alpha treatment influences known molecular events that normally accompany the transition from quiescence to proliferation in these cells. IFN-alpha treatment was found to profoundly block S-phase entry of stimulated T lymphocytes. This correlated with a strong inhibition of IL-2-induced changes in G1-regulatory proteins, including the prevented up-regulation of G1 cyclins and cyclin-dependent kinases as well as an abrogation of mitogen-indu...
The author describes an operating guideline for local treatment in cases dealing with sternum sur... more The author describes an operating guideline for local treatment in cases dealing with sternum surgery as part of bypass surgery and saphenous vein surgery in a post-anesthesia recuperation ward for patients having cardiac problems, trying to prevent and reduce the distinct local complications which can occur such as infection or dehiscence of a wound.
After an impressive 12 point reduction in Peruvian monetary poverty, questions have been raised a... more After an impressive 12 point reduction in Peruvian monetary poverty, questions have been raised about the extent in which these figures mask deprivation in several other aspects critical for human development. We propose using the Alkire-Foster multidimensional headcount to address this issue, and devise a simple comparison framework to measure the tension between the incidence of monetary poverty and the overall level of deprivation based on the multidimensional measure. We select six dimensions and their respective indicators for the Peruvian case, and apply this framework using data for 2004 and 2008. Results indicate that we now face a larger risk of classifying as non-poor individuals who still endure significant deprivation if we rely on the conventional monetary dimension. In addition, inter and intraregional comparisons show that deprivations endured by the multidimensional poor are similar across regions and concentrated on the health and dwelling conditions dimensions, in particular, on the lack of adequate water and sanitation services. This last result reveals an opportunity to focalize public investment efforts.
The reduction of macroeconomic vulnerability in emerging markets is now at the core of the resear... more The reduction of macroeconomic vulnerability in emerging markets is now at the core of the research agenda. Liability dollarization plays a vital role in the understanding of vulnerability and its implications have been addressed in the literature via a "financial accelerator" mechanism. We can identify two channels by which the financial accelerator can be triggered. The first, operates via shocks on asset prices which, in turn, affect the realized return on capital and net worth. The second channel, depends on unanticipated movements in firm's debt burden which directly affect their net worth. Not surprisingly, liability dollarization plays an important role in the activation of this second channel since the unexpected component of a real depreciation can greatly magnify the debt burden of firms if their debt is denominated in dollars. Despite significant contributions to the understanding of the consequences of liability dollarization for output fluctuations, we believe some important extensions are now in order: (i) if we want to address the implications of the degree of dollarization, we need a general equilibrium model that admits firm's debt to be denominated in both local and foreign currency (the two models just described assume full liability dollarization); (ii) central bank's response to exchange rate innovations (given a degree of dollarization) must be assessed from a welfare point of view; and (iii) given a dollarization level and central bank's response to shocks, a new, encompassing, definition of vulnerability must be provided in order to adequately address the way in which it can be mitigated.
This invention relates to a laminated article, particularly to such an article comprising a gauze... more This invention relates to a laminated article, particularly to such an article comprising a gauze pack containing two or more gauzes such as are typically used as catalyst catchment or getter means in nitric acid production plants. Specifically, this invention provides a gauze pack segment suitable for locating in planar contiguous relationship with one or more further gauze pack segments to provide a gauze pack having a predetermined, for example, a regular geometric shape comprises a plurality of superposed gauze segments having at least when assembled substantially identical shape and area and held in fixed relationship one with another.
+)-Sclareolide has been synthesised from (+)-sclareol oxide in one step in high yield, by treatme... more +)-Sclareolide has been synthesised from (+)-sclareol oxide in one step in high yield, by treatment with peroxy acids under very mild conditions. The reaction pathway does not follow the usual oxidative cleavage of the double bond of (+)-sclareol oxide, but the key intermediate is a five-membered ring hemiketal. The direct conversion of a six-membered cyclic enol ether into a g-lactone is described for the first time.
Temperature and Time Optimization for Microwave Synthesis of Compound 3 2 Preparation of Compound... more Temperature and Time Optimization for Microwave Synthesis of Compound 3 2 Preparation of Compounds 1-4 3 Tabulated Spectroscopic Data for Compounds 1-4 4 Pictures of Compounds 1-4 in Ethanol
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