Papers by Sergio Rodríguez
Microbial mounds are common in the Carboniferous from Western Palaeotethys. A conspicuous Mississ... more Microbial mounds are common in the Carboniferous from Western Palaeotethys. A conspicuous Mississippian example is located close to Tabainout village in the southern part of the Azrou-Khenifra Basin, west of Khenifra in Central Morocco. The mud mounds from Tabainout lie almost directly on Ordovician sandstones. Basal Carboniferous deposits are polymictic conglomerates, sedimented in a palaeorelief on the Ordovician sandstones during the upper Visean (Asbian). Calcareous breccias and bioclastic limestones with a diverse assemblage of corals occur in the overlying beds representing the base for the core facies of the mounds (Fig. 1). The basal bedded bioclastic limestones contain abundant colonial and solitary rugose corals: Amplexizaphrentis sp., Amplexocarinia sp., Arachnolasma cylindricum, Clisiophyllum keyserlingi, Dibunophyllum bipartitum, Lithostrotion vorticale, Palaeosmilia murchisoni, Pseudozaphrentoides sp., Rotiphyllum sp., Siphonodendron irregulare, S. martini, S. paucirad...
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Pastos y Forrajes, 2020
Objetivo: Evaluar la efectividad de tres cepas de Bradyrhizobium en el desarrollo morfoagronomico... more Objetivo: Evaluar la efectividad de tres cepas de Bradyrhizobium en el desarrollo morfoagronomico de Glicine max L, cultivar Incasoy 27, en el municipio Puerto Padre.Materiales y Metodos: Se desarrollo un estudio en condiciones de campo, para evaluar la efectividad de tres cepas de Bradyrhizobium en variables morfoagronomico de Glycine max L., cultivar Incasoy 27, en un suelo Fersialitico Pardo Rojizo del municipio Puerto Padre, en Las Tunas, Cuba. Se aplico un diseno de bloques al azar con cinco tratamientos (control absoluto, fertilizacion con NPK y las cepas de Bradyrhizobium, ICA 8001, USDA 110 y GIE 109) y cuatro replicas. La distancia entre replicas fue de 1 m y la semilla tenia 98 % de germinacion. Durante el ciclo del cultivo, se evaluo el numero de vainas por planta, el numero de granos por vaina, el peso de 100 granos, el rendimiento en t ha-1 y se realizo una valoracion economica.Resultados: El menor numero de vainas por planta se obtuvo en el control absoluto, sin diferi...
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Energy Research & Social Science
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En este trabajo se presentan los resultados obtenidos a partir de la investigacion realizada en l... more En este trabajo se presentan los resultados obtenidos a partir de la investigacion realizada en la sucesion estratigrafica del Viseense superior que aflora en el area de Sierra Boyera, al sureste de Penarroya-Pueblonuevo (Cordoba). Se ha cartografiado el area; se han estudiado y muestreado numerosos afloramiento~ y se ha levantado una seccion estratigrafica en la zona en donde el afloramiento de calizas es mas continuo (seccion de Sierra Boyera). Con ello se ha llevado a cabo la caracterizacion del ambiente sedimentario en que se depositaron los materiales carboniferos, las variaciones existentes dentro de este, asi como la datacion precisa de dichos materiales. En Sierra Boyera, el ambiente deposicional corresponderia al de una plataforma dominada por las tormentas (en la zona interna), con desarrollo de monticulos microbianos en condiciones submareales (en la zona externa). Al noroeste, adyacentes a Sierra Boyera pero sin continuidad estratigrafica con esta, afloran potentes masas...
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Blood, 2017
Introduction Acute promyelocytic leukemia (APL) is distinguished by the presence of a translocati... more Introduction Acute promyelocytic leukemia (APL) is distinguished by the presence of a translocation between chromosomes 15 and 17 [t(15;17)]. All-transretinoic acid (ATRA) plus arsenic trioxide (ATO) is considered as the first line treatment of APL, and can induce a complete remission (CR) in greater than 90% of patients, with a 2-year overall survival (OS) of 99% (Lo-Coco et al, N Eng J Med, 2013). Due to the high treatment costs of this regimen, the International Consortium on Acute Promyelocytic Leukemia (IC-APL) developed a protocol to diminish the economic burden associated with the treatment of APL (Ribeiro & Rego, Hematol Am Soc Hematol Educ Progr, 2006). We performed a cost-effectiveness analysis (CEA) and a cost-utility analysis (CUA) of the IC-APL protocol in Mexico, and compared it with the costs of the first line treatment of this disease in other countries. Methods We compared the patients in our institute, which were treated with the IC-APL protocol, with patients trea...
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Revista Espanola De Investigaciones Sociologicas, 2021
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El presente trabajo tuvo como objetivo evaluar la eficacia de dos metodos de monitoreo de Mahanar... more El presente trabajo tuvo como objetivo evaluar la eficacia de dos metodos de monitoreo de Mahanarva andigena Jacobi, desde el punto de vista biologico y economico. El estudio se desarrollo en las condiciones de la provincia Pastaza, Ecuador, donde se seleccionaron cuatro parroquias representativas de la provincia, debido a su mayor superficie en produccion de cana de azucar ( Saccharum spp.), variedad POJ 93 (Limena). Para el estudio, que se desarrollo desde diciembre de 2012 hasta agosto de 2013, se eligieron tres fincas al azar en las parroquias y en cada una se selecciono una hectarea para el estudio. En el monitoreo de las poblaciones de M. andigena se utilizaron dos metodos: conteo directo de individuos y trampas adhesivas amarillas; las evaluaciones se hicieron con intervalos de diez dias. La densidad de adultos, que se obtuvo mediante el conteo directo, mostro incremento progresivo a partir de febrero y alcanzo el valor maximo en los meses de marzo y abril, pues supero el ...
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En este trabajo se presentan los resultados de una experiencia en la ensenanza virtual de las Mat... more En este trabajo se presentan los resultados de una experiencia en la ensenanza virtual de las Matematicas a nivel del postgrado (en la modalidad Blended learning) mediante el uso de la plataforma MOODLE y que tiene por objetivo divulgar una experiencia sobre la capacitacion a los profesores de bachillerato y de las carreras de corte ingenieril a traves del intercambio y la reflexion en la ensenanza de esta ciencia. Para procesar la encuesta se utilizaron los sistemas informaticos de analisis Statistica Ver 8, SmartArt y Microsoft Office Excel. Entre los efectos se muestra la relevancia de los foros virtuales, asi como la forma de moderarlo por parte de los facilitadores permitiendo que tutores y cursistas alcancen el mayor provecho de esta herramienta, propiciando que se enriquezcan las experiencias al intercambiar ideas que mejoran el tema de las matematicas en un entorno virtual. En las consultas a los facilitadores, la satisfaccion fue elevada (p<0,03) y la tematica proporcion...
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SUMMARY. Calcaneum fractures represent a 60% from the tarsus fractures and most of them occur in ... more SUMMARY. Calcaneum fractures represent a 60% from the tarsus fractures and most of them occur in productive-aged men what represents an important economic impact. These fractures continue to be a challenge for orthopedist surgeons because there is a controversy about their management. Through a retrospective, transversal, descriptive and observational study, we analyzed a total of 20 fractures in 20 patients. The average age was 44 years. The most affected side was the left one. The main cause of the fracture was falling down from a certain height. These fractures presented as isolated in 65% of the cases and they were associated to other lesions in the rest of the cases (35%). In all of the cases, open-reduction was practiced with articular surface restitution and fixing through special plaque for calcaneum AO, with or without osseous grafting. The most frequent complication was due to hurt dehiscence (20% of the cases). The average following period was of 20 months, with excellent...
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SUMMARY. Calcaneal fractures account for 60% of tarsal fractures, mostly in males in their produc... more SUMMARY. Calcaneal fractures account for 60% of tarsal fractures, mostly in males in their productive age resulting in a considerable economic impact. They are still a major challenge for orthopedic surgeons because of the controversy in terms of management. Through a prospective, cross section, descriptive, and observation study, we analyzed 20 fractures in 16 patients. The average age was 44 years. The most affected side was the left side. The main cause was a long fall. It occurred as an isolated fracture in 65% of cases and in association with other injuries in the remaining 35%. In all cases open reduction, joint surface restoration and fixation with a special AO calcaneum plate, with or without bone graft, were performed. The most common complication was dehiscence of the wound in 20% of cases. The average follow up time was 20 months with excellent results in seven cases (35%), good in 12 (60%) of cases and fair in one (5%) case according to the Maryland functional evaluation...
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Hystrix-italian Journal of Mammalogy, 2016
The family Procyonidae (raccoons, coatis, olingos, ringtails, kinkajous, and their extinct relati... more The family Procyonidae (raccoons, coatis, olingos, ringtails, kinkajous, and their extinct relatives) consists of six extant genera and is restricted to North and South America. Currently recognized fossil species suggest that procyonid diversity was previously much greater, including six extinct genera throughout South America. However, it is unusual that so many confamilial taxa are represented in a relatively brief span of time and restricted geographic region, and, considering that six of ten are based on badly preserved specimens, often fragments of bone with worn teeth, the validity of many of these taxa is suspect. As a step towards reevaluating past procyonid diversity in South America, we sought to identify the degree of intra- and interspecific variation in six molariform teeth of extant Procyon , particularly to identify which teeth are potentially most useful for identifying fossil procyonids. The six molariform cheek teeth analyzed consistently yielded smaller intra- th...
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Frontiers in Pharmacology
Background: Antimalarial drugs were widely used as experimental therapies against COVID-19 in the... more Background: Antimalarial drugs were widely used as experimental therapies against COVID-19 in the initial stages of the pandemic. Despite multiple randomized controlled trials demonstrating unfavorable outcomes in both efficacy and adverse effects, antimalarial drugs are still prescribed in developing countries, especially in those experiencing recurrent COVID-19 crises (India and Brazil). Therefore, real-life experience and pharmacovigilance studies describing the use and side effects of antimalarials for COVID-19 in developing countries are still relevant.Objective: To describe the adverse effects associated with the use of antimalarial drugs in hospitalized patients with COVID-19 pneumonia at a reference center in Mexico City.Methods: We integrated a retrospective cohort with all adult patients hospitalized for COVID-19 pneumonia from March 13th, 2020, to May 17th, 2020. We compared the baseline characteristics (demographic and clinical) and the adverse effects between the groups...
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"Un punto critico para las empresas es la fijacion de su publico objetivo en sus campanas de... more "Un punto critico para las empresas es la fijacion de su publico objetivo en sus campanas de marketing y comunicacion. Salvo excepciones, por la particular naturaleza del producto, la mayoria de planes de marketing y campanas publicitarias fijan como publicos objetivo individuos menores de 50 anos. De hecho en el mundo de la empresa, muy dado a dar etiquetas a las cohortes generacionales, desde hace unos anos hacen especial enfasis en los Millenials (aquellos individuos que tienen entre 15 y 34 anos). Estas definiciones provenientes del mundo anglosajon se adoptan como pertinentes en los mercados locales sin una reflexion sobre la realidad del pais. La realidad, tanto sociodemografica como socioeconomica de Espana hace necesario replantearse este precepto. El envejecimiento de la poblacion, con individuos que viven mas anos y con mejor calidad de vida, hace que los “targets” mayores cobren especial relevancia. En este contexto, el presente estudio desarrolla una segmentacion de una parte de este colectivo mayor, el conocido como “nido vacio”. Es decir los hogares de padres cuyos hijos han abandonado el hogar familiar. Entendiendo que en parte de estos hogares con hijos emancipados, se vive un renacer en terminos de consumo. La mayoria de ellos, con piso propio y sin hipoteca. Sin hijos dependientes en el horizonte. Y con ahorros y ganas de disfrutarlos. Muchos son boomers (nacidos durante el baby boom), vitales en mente, cuerpo y espiritu que cambian el enfoque de convertirse en alguien a desarrollarse ellos mismos. Estos individuos, generalmente de mas de 55 anos gozan de una gran calidad de vida tanto en terminos de salud como de ingresos. Parece probable que parte de ellos se conviertan, en terminos de actitudes y de consumo, en una especie de Dinki (double-income; no kids yet) renacidos. A partir de un estudio de mas de 10.000 individuos mayores de 14 anos representativos a nivel nacional, identificamos a casi 2.000 que pertenecian al colectivo. Se utilizo una segmentacion del tipo Cluster, y utilizando el algoritmo k-means, pudimos determinar cinco grupos claramente diferenciados que pudimos caracterizar en variables actitudinales, de consumo y sociodemograficas. De esta forma obtuvimos una perspectiva completa del colectivo. El estudio demostro la existencia, dentro del colectivo Nido Vacio, de segmentos relevantes para las marcas en cuanto a su propension al consumo que deberian incluirse en los planes de marketing y comunicacion The challenge for the companies is to detect the right target. Most marketing plans and advertising campaigns choice as target individuals under 50 y.o. The Socio demographic reality of Spain makes it necessary to reconsider this precept. The ageing of the population, with individuals who live longer and better quality of life, makes the ""old targets"" come special relevance. In this context, the present study develops a segmentation of a part of this group, known as ""empty nester"". The definition of an empty nester is a parent whose children have all grown up and left home. Many of them have their own floor and no mortgage, without dependent children on the horizon, and with savings. They want to enjoy them. We defining and subdividing the empty nester into clearly identifiable segments having similar needs, wants, or demand characteristics. Understanding that part of these homes with emancipated children live a revival in terms of consumption. Many are boomers (born during the baby boom), vital in mind, body and spirit, changing the focus of becoming someone to develop themselves. These individuals, usually of more than 55 years enjoy a high quality of life in terms of health and income. It seems likely that part of them become, in terms of attitudes and consumption, in a sort of Dinki (double - income; no kids yet) reborn. We used a database from a study of more than 10,000 individuals over 14 y.o. We could identified nearly 2,000 belonging to the collective. The cluster analysis used k-means Algorithm. We determined five clearly differentiated groups that we could characterize in attitudinal variables of consumption and socio-demographic. In this way we obtained a full perspective of the collective. The study demonstrated the existence, within the collective nest empty, of relevant clusters for brands in terms of their propensity to consumption "
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Papers by Sergio Rodríguez