3,412 research outputs found
Salida de campo de José Manuel Rubio Recio a Sardón de Duero (Valladolid) el 28 de octubre de 1952
No full textSalida de campo de José Manuel Rubio Recio a Sardón de Duero (Valladolid) el 28 de octubre de 1952, de la que el autor anotó observaciones sobre Lepus sp. (Liebre) y las siguientes aves: Aquila sp. (posiblemente, el Águila real, A.chrysaeos), Ardea sp. (Garza), Circus cyaneus (Aguilucho pálido), Corvus frugilegus (Graja), Coturnix coturnix (Codorniz común), Falco tinnunculus (Cernícalo vulgar), Garrulus glandarius (Arrendajo), Hieraaetus fasciatus (Águila perdicera) y Perdiz (Alectoris sp. o Perdix sp.).Field trip of José Manuel Rubio Recio to Sardón de Duero (Valladolid) the 28th of October of 1952, of which the author noted observations about Lepus sp. (Hare) and the following birds: Aquila sp. (possibly, the Golden Eagle, A.chrysaetos), Ardea sp. (Heron), Circus cyaneus (Northern Harrier), Corvus frugilegus (Rook), Coturnix coturnix (Common Quail), Falco tinnunculus (Common Kestrel), Garrulus glandarius (Eurasian Jay), Hieraaetus fasciatus (Bonelli´s Eagle) and Partridge (Alectoris sp. or Perdix sp.)
A New Fractional Curvature of Curves and Surfaces in Euclidean Space Using the Caputo’s Fractional Derivative
No full textIn this paper, the authors generalize the fractional curvature of plane curves introduced by Rubio et al. in 2023, to regular curves in the Euclidean space R3, and study the geometric properties of the curve using Caputo’s fractional derivative. Furthermore, we introduce a new definition of fractional curvature and fractional mean curvature of a regular surface, using fractional principal curvatures; and prove that such concepts are invariant under isometries; i.e., they belong to the intrinsic geometry of the regular surface. Also, a geometric interpretation is given to Caputo’s fractional derivative of algebraic polynomials
Fourier Multipliers in Banach Function Spaces with UMD Concavifications
No full textWe prove various extensions of the Coifman-Rubio de Francia-Semmes multiplier theorem to operator-valued multipliers on Banach function spaces. Our results involve a new boundedness condition on sets of operators which we call -boundedness, which implies -boundedness in many cases. The proofs are based on new Littlewood-Paley-Rubio de Francia-type estimates in Banach function spaces which were recently obtained by the authors.Accepted Author ManuscriptAnalysi
La visión técnica del arquitecto: Francisco Hernández-Rubio y el hormigón armado
No full textThe author comments on an unpublihed lecture given by the Jerez architect Francisco Hernández-Rubio. Hernández-Rubio 's views on a variety of artistic styles are discussed, as is his deep undersanding -relatively early in the history of Spanish architecture- of the technique of using reinforced concrete. This is, then, an attempt t do justice to a seriours professional of interest study of the late introduction in Spain of reinforced concrete, and of the polemical discussions between engineers and architects: in this respect, Hernández-Rubio was a remarkable exception, in that he, together with sorne other architets, did not neglect the role played in his art by technical materials and methods.El presente artículo ofrece el comentario de una conferencia inédita del arquitecto jerezano Francisco Hernández-Rubio, analizando su apreciación de los diversos estilos artísticos y, sobre todo, su profundo conocimiento en una fecha relativamente temprana en España de la técnica del hormigón armado. Se trata con ello de reivindicar la figura de un profesional desconocido y no desprovisto de interés y de acometer un estudio esquemático y preliminar del problema de la introducción en España del hormigón armado como ramificación tardía de la generalizada polémica ingenieros/arquitectos, en la que Hernández-Rubio demuestra ser una interesante excepción y un ejemplo notable de aquellos arquitectos que no olvidaban el papel de lo técnico en su arte
Genetic variation and evolutionary analysis of Cucumber mosaic virus in medicinal, aromatic and ornamental plants from northern Italy.
No full textThe genetic variation and evolution of Cucumber mosaic virus (CMV) (1) infecting aromatic, medicinal and ornamental plants in Northern Italy were studied by sequence analysis of the movement protein gene and comparison with equivalent sequences of isolates from other countries. Comparison of nonsynonymous and synonymous substitutions at each codon suggested that 30% of amino acid sites were under negative selection and only one was under positive selection. Phylogenetic inference, nucleotide diversity estimation, neutrality tests and genetic differentiation analysis revealed a high nucleotide diversity of CMV in Northern Italy with respect to areas of other countries [1,2] and suggested that long distance migration plays a main role in the evolution and determination of the different genetic structures of this virus.
1. García-Arenal et al., 2000. Virus Res 71:1.
2. Lin H.X. et al., 2004. J Virol 78:6666
Modern energy consumption and economic modernisation in Latin America and the Caribbean between 1890 and 1925
No full textIn the absence of comparable macroeconomic indicators for most of the Latin American economies before the 1930s, the apparent consumption of energy is used in this paper as a proxy of the degree of modernisation of Latin America and the Caribbean. This paper presents an estimate of the apparent consumption per head of modern energies (coal, petroleum and hydroelectricity) for 30 countries of Latin American and the Caribbean for 1890 to 1925, multiplying the number of countries for which energy consumption estimates were previously available. As a result, the paper provides the basis for a quantitative comparative analysis of modernisation performance beyond the few countries for which historical national accounts are available in Latin America.Energy consumption, economic modernisation, Latin America
The ℓ <sup>s</sup>-boundedness of a family of integral operators on UMD banach function spaces
No full textWe prove the ℓs-boundedness of a family of integral operators with an operator-valued kernel on UMD Banach function spaces. This generalizes and simplifies earlier work by Gallarati, Veraar and the author, where the ℓs-boundedness of this family of integral operators was shown on Lebesgue spaces. The proof is based on a characterization of ℓs-boundedness as weighted boundedness by Rubio de Francia.Analysi
Factors Associated to Purchase of Quality-Labelled Beef
No full textThe aim of the present study is to identify the factors associated to purchase of quality-labelled beef. For this purpose a total of 364 surveys were carried out on buyers of beef in three Spanish cities. The sample was divided into three groups of buyers according to the beef purchasing habits with a quality label. A logistic regression analysis was used to estimate the differences between groups. The results show the importance of the production region as a quality aspect. Income level, association of quality-labelled beef with “guarantee and tradition” aspects, purchasing frequency, place of purchase, production systems and lifestyles are all variables that enabled us to establish differences between groups.beef quality, quality label, consumer perception, Demand and Price Analysis,
Promoting curiosity: STEAM and the scientific awakening in boys and girls in 1st grade of primary School at the Lucila Rubio De Laverde IED
No full textLa presente investigación tiene por nombre “Fomentando curiosidad: STEAM y el despertar científico en niños y niñas de 1º de primaria del Colegio Lucila Rubio De la Verde IED” tiene como objetivo analizar la relación entre el método STEAM, el proceso de aprendizaje y el desarrollo de habilidades científicas que permitan construir experiencias significativas para niñas y niños de primer grado, teniendo en cuenta las estrategias que los maestros utilizan en las aulas para potenciar el desarrollo de habilidades científicas, además el analizar las prácticas pedagógicas relacionadas con el método STEAM para involucrar actividades que potencien el pensamiento científico y por último generar una herramienta maestra que posibilite la implementación del método STEAM por parte de los docentes.
Este trabajo de investigación se desarrolla bajo el método cualitativo con un paradigma fenomenológico Hermenéutico, que pretende comprender las experiencias y percepciones de los estudiantes y docentes del Colegio Lucila Rubio De Laverde IED respecto al método STEAM y las habilidades científicas, para esto se tiene en cuenta la observación directa a estudiantes y docentes, la exploración espontánea de diferentes materiales y las entrevistas a docentes, de las cuales se realiza un análisis exhaustivo que tiene como resultado la relación de estrategias implementadas por los docentes con el desarrollo de habilidades científicas, sin que esa sea la intencionalidad de los docentes. Por otra parte, los estudiantes siguen inmersos en la metodología tradicional, aunque algunos docentes están familiarizados con otras metodologías como STEAM. Sin embargo, carecen de material que los guíe en este camino. Teniendo en cuenta lo anterior se diseñó una herramienta maestro que sirve de guía y apoyo para los docentes en cuanto a la implementación del método STEAM en las aulas de clase.Colegio Lucila Rubio De Laverde IEDLicenciado en Educación InfantilPregradoThe present research is called “Fostering curiosity: STEAM and scientific awakening in boys and girls in 1st grade of primary School at the Lucila Rubio De la Verde IED.” and its objective is to analyze the relationship between the STEAM method, the learning process and development. of scientific skills that allow for the construction of meaningful experiences for first grade girls and boys, taking into account the strategies that teachers use in the classrooms to enhance the development of scientific skills, in addition to analyzing the pedagogical practices related to the STEAM method to involve activities that enhance scientific thinking and finally generate a teacher tool that enables the implementation of the STEAM method by teachers.
This research work is developed under the qualitative method with a Hermeneutic phenomenological paradigm, which aims to understand the experiences and perceptions of the students and teachers of the Lucila Rubio De Laverde IED School regarding the STEAM method and scientific skills, for this it is taken into account. direct observation of students and teachers, spontaneous exploration of different materials and interviews with teachers, from which an exhaustive analysis is carried out, resulting in. the relationship of strategies implemented by teachers with the development of scientific skills, without this being the teachers' intention; On the other hand, students are immersed in traditional methodology just as many of them know other methodologies such as STEAM. They do not have material to guide them on this path. Taking the above into account, a teacher tool was designed that serves as a guide and support for teachers regarding the implementation of the STEAM method in classrooms
Cost-effectiveness of three echinocandins and fluconazole in the treatment of candidemia and/or invasive candidiasis in nonneutropenic adult patients
No full textS Grau,1 JC Pozo,2 E Romá,2 M Salavert,3 JA Barrueta,4 C Peral,4 I Rodriguez,5 D Rubio-Rodríguez,6 C Rubio-Terrés6 1Hospital del Mar (IMIM), Barcelona, 2Hospital Universitario Reina Sofía, Córdoba, 3Hospital Universitario y Politécnico La Fe, Valencia, 4Pfizer SLU, Alcobendas, 5Trial Form Support, Madrid, 6Health Value, Madrid, Spain Objective: To estimate the cost-effectiveness of three echinocandins (anidulafungin, caspofungin, and micafungin) and generic fluconazole in the treatment of nonneutropenic adult patients with candidemia and/or invasive candidiasis in intensive care units in Spain. Materials and methods: A decision-tree model was applied. The success and safety (hepatic and renal adverse effects) of first-line treatments were obtained from meta-analyses and systematic reviews of clinical trials. In the case of failure, a second-line treatment (liposomal amphotericin B after the echinocandins, or one of the echinocandins after fluconazole) was administered. The duration of the treatments (14 days total) was established by a panel of clinical experts using the Delphi method and according to Infectious Diseases Society of America guidelines. The cost of the medications and renal toxicity were considered. Deterministic and probabilistic sensitivity analysis using Monte Carlo simulations were carried out. Results: The total cost of the treatment of candidemia and/or invasive candidiasis with anidulafungin, caspofungin, micafungin, and fluconazole was €5,483, €5,968, €6,231, and €2,088, respectively. Anidulafungin was the dominant treatment (more effective, less expensive) compared to micafungin and caspofungin. The cost of achieving one more patient successfully treated with anidulafungin, caspofungin, and micafungin compared to fluconazole was €17,199, €23,962, and €27,339, respectively. The result remained stable, despite modification of the duration of the first-line and second-line treatments, as well as most of the dosing regimens. The probabilistic analysis also remained stable. Conclusion: In accordance with this economic study, anidulafungin would produce savings and would be the dominant treatment compared with micafungin and caspofungin in nonneutropenic adult patients with candidemia and/or invasive candidiasis in intensive care units in Spain. Keywords: invasive candidiasis, candidemia, anidulafungin, micafungin, caspofungin, fluconazole, cost-effectiveness analysi
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