Hydrologic Data for Urban Studies in The Austin, Texas, Metropolitan Area, 1982

The technical report mentions Waller Creek as a main stream in the study area, but a preliminary search provides no results to specific data from the site.Hydrologic investigations of urban watersheds in Texas were begun by the U.S. Geological Survey in 1954. Studies are now in progress in Austin, and Houston. Studies have been completed in the Dallas, Fort Worth, and San Antonio areas. The Geological Survey, in cooperation with the Texas Department of Water Resources, began hydrologic studies in the Austin urban area in 1954. In cooperation with the city of Austin, the program was expanded in 1975 to include additional streamflow and rainfall gaging stations, and the collection of surface water-quality data. In 1978, the program was expanded to include a ground-water resources study of the South Austin metropolitan area in the Balcones Fault Zone.Waller Creek Working Grou

A note on Appell sequences, Mellin transforms and Fourier series

A large class of Appell polynomial sequences {p n (x)} n=0 8 are special values at the negative integers of an entire function F(s, x), given by the Mellin transform of the generating function for the sequence. For the Bernoulli and Apostol-Bernoulli polynomials, these are basically the Hurwitz zeta function and the Lerch transcendent. Each of these have well-known Fourier series which are proved in the literature using various techniques. Here we find the latter Fourier series by directly calculating the coefficients in a straightforward manner. We then show that, within the context of Appell sequences, these are the only cases for which the polynomials have uniformly convergent Fourier series. In the more general context of Sheffer sequences, we find that there are other polynomials with uniformly convergent Fourier series. Finally, applying the same ideas to the Fourier transform, considered as the continuous analog of the Fourier series, the Hermite polynomials play a role analogous to that of the Bernoulli polynomials

A Greenhouse Tomato Crop Grey Mould Disease Early Warning System

Tomato is a very important crop in the Mediterranean region in general and in Portugal in particular being the production for fresh consumption made essentially in greenhouses. Botrytis cinerea Pers.: Fr. is the causal agent of grey mould disease and is one of the most important diseases affecting greenhouse tomato crops, high relative humidity and the presence of free water on the plant surfaces have been recognized as favourable to the development of this disease. The availability of a early warning system providing to the tomato grower alerts with information of the potential favoured conditions for the disease appearance in its early stages or even before can have a very positive impact in reducing the economic and environmental impacts due to a more rational and efficient disease control management. Today we have the necessary technology to build and launch an Internet based early warning system for grey mould disease in greenhouse tomato crop supported by a wireless sensor network. In this paper a prototype for such a system is presented. From the research conducted until the moment the proposed solution is viable and the next step will be to validate it in the field in different locations and with distinct greenhouses conditions

La nanotecnología médica

La nanotecnología ofrece grandes oportunidades en el tratamiento de enfermedades humanas que pueden ahorrar desde tiempo y recursos financieros, hasta incrementar notablemente la eficiencia misma del tratamiento y prevenir padecimientos a través de la detección, aun sin presentar síntomas; sin embargo, su uso debe ser monitoreado y evaluado para no rebasar los límites de la ética y los posibles efectos colaterales que pueden darse. Una de las limitantes en países menos desarrollados puede ser su acceso a un mayor número de habitantes, así como la presencia de especialistas que desarrollen investigación y aplicación de la misma

RENDIMIENTO Y CALIDAD DE ACEITE DE Thymus vulgaris L., POR EFECTO DE HONGOS MICORRÍZICOS, RIZOBACTERIAS Y FITORREGULADORES

Thyme (Thymus vulgaris L.) is commercialized mainly for its leaves and essential oil, and because of the growing demand of natural ingredients and high-quality oils, the effect of applying a commercial phytorregulator and inoculating with plant growth-promoting rhizobacteria (PGPR) and arbuscular mycorrhizae fungi (AMF) on the yield and composition of the essential thyme oil, was evaluated, highlighting the first indication of the impact of symbiotic relationships on the species with the production and quality of the oil, under a completely random experimental design with 32 repetitions for each treatment. The planting distance was 1.5x1.0 m between rows and plants, respectively. The greatest yield was presented by the inoculation treatment with bacteria P61 with 13.3 mg AE g-1 MS. It was observed that the number of components and the percentage present in the essential oil is different in each treatment. The highest concentration of thymol was seen in the Control (52.55 %), followed by plants inoculated with P61 (51 %) and AMF Zac19+Cedar (50.66 %). For ocimene, the treatment inoculated with AMF Zac19 (21.79 %) presented the highest concentration, followed by AMF Zac19+Cedar and phytoregulator Bioforte®, with 20.38 % and 19.37 %, respectively. With regard to the concentration of J-terpinene, inoculation with AMF Cedar and bacteria P61 showed a better response with 17.9 and 17.84 %, respectively.El tomillo (Thymus vulgaris L.) se comercializa principalmente por sus hojas y aceite esencial, y con base en la creciente demanda de ingredientes naturales y aceites de alta calidad, se evaluó el efecto que tiene la aplicación de un fitorregulador comercial, la inoculación con rizobacterias promotoras del crecimiento vegetal (RPCV) y hongos micorrízicos arbsculares (HMA) en el rendimiento y composición del aceite esencial de tomillo, resaltando la primicia del efecto de las relaciones simbióticas para la especie, con la producción y calidad de aceite, bajo un diseño experimental completamente al azar, con 32 repeticiones para cada tratamiento. La distancia de plantación fue de 1.5X1.0 m entre hileras y plantas respectivamente. El mayor rendimiento lo presentó el tratamiento de inoculación con la bacteria P61 con 13.3 mg AE g-1 MS. Se observó que el número de componentes y el porcentaje presente en el aceite esencial son diferentes en cada tratamiento. La mayor concentración de timol se registró en el Testigo (52.55%), seguido por plantas inoculadas con P61 (51%) y los HMA Zac19+Cedro (50.66%). Para O-Cimeno el tratamiento inoculado con HMA Zac19 (21.79%) presentó la mayor concentración, seguido de HMA Zac19+Cedro y el fitorregulador Bioforte® con 20.38% y 19.37%, respectivamente. Respecto a la concentración de J-terpineno, la inoculación con el HMA Cedro y la bacteria P61 mostraron mejor respuesta con 17.9 y 17.84%, respectivamente

ACTIVIDAD ANTIMICROBIANA DEL ACEITE ESENCIAL DE TOMILLO (Thymus vulgaris L.)

Thyme (Thymus vulgaris L.) is marketed primarily for its leaves and the extraction of its essential oil (EO), composed mainly by monoterpenes (thymol, carvacrol and linalool, y-terpinene, p-Cymene, a-Pinen, and a-Tujuene). Various properties of the EO are known, such as its antitumor, antibacterial, antifungus and antioxidant activities. The effect on the yield, composition and antibacterial activity of the thyme essential oil of applying a commercial phytoregulator, and inoculating with plant growth-promoting rhizobacteria and arbuscular mycorrhyzic fungi was evaluated, finding that the highest yield was recorded with the P61 treatment with 13.3 mg EO g-1 MS. It was observed that the number of components and the percentage present in the EO are different in each treatment. The treatment that presented highest thymol concentration was the control (52.55 %), followed by the treatment inoculated with P61 (51.05 %) and Zac19+Cedar (50.66%). For p-Cymene, the treatment inoculated with Zac19 (21.79) presents the highest concentration, followed by Zac19+Cedar and Bioforte with 20.38% and 19.37%, respectively. Regarding the concentration of y-terpinene, cedar and P61 showed a better response, with 17.91 and 17.84%, respectively. The T. vulgaris oils showed antibacterial activity against E. coli, in a concentration of 50 %, corresponding to plants inoculated with P61 which demonstrated a larger inhibition diameter.El tomillo (Thymus vulgaris L.) se comercializa principalmente por sus hojas y por la extracción de su aceite esencial (AE), compuesto principalmente por monoterpenos (timol, carvacrol y linalol, y-terpineno, p-cimeno, a-Pineno y a-Tujueno). Se conocen diversas propiedades del AE, tales como su actividad antitumoral, antibacteriana, antifúngicas y antioxidante. Se evaluó el efecto que tiene la aplicación de un fitorregulador comercial, la inoculación con rizobacterias promotoras del crecimiento vegetal y hongos micorrízicos arbsculares en el rendimiento, composición y actividad antibacteriana del aceite esencial de tomillo, obteniendo que el mayor rendimiento lo registró el tratamiento P61 con 13.3 mg AE g-1 MS. Se observó que el número de componentes y el porcentaje presente en el AE son diferente en cada tratamiento. El tratamiento que presentó mayor concentración de timol fue el Testigo (52.55%), seguido por el tratamiento inoculado con P61 (51.05%) y Zac19+Cedro (50.66%). Para O-Cimeno el tratamiento inoculado con Zac19 (21.79) presenta la mayor concentración, seguido de Zac19+Cedro y Bioforte con 20.38% y 19.37% respectivamente. Respecto a la concentración de J-terpineno Cedro y P61 mostraron mejor respuesta, con 17.91 y 17.84% respectivamente. Los aceites de T. vulgaris, mostraron actividad antibacteriana contra E. coli., en concentración a 50%, correspondiendo a plantas inoculadas con P61 que demostró mayor diámetro de inhibición

FENOLOGÍA Y FISIOLOGÍA DE ILAMA (Annona diversifolia Saf.)

Considering the ilama crop (Annona diversifolia Saf.) as a sustainable alternative for fruit-growing in the dry tropics, its phenological and anatomical characterization was performed in situ, and also a dormancy evaluation under controlled conditions. Ilama is a semi-deciduous species with a discontinuous annual phenological cycle with an active growth stage and a dormancy one. The cycle begins in March-April with the appearance of reproductive and vegetative buds, the floral opening takes place in March-May, it bears fruit for five months (May-September); the growth of branches, buds and leaves begins in the spring and ends in summer. The temperature is the prevailing factor in defoliation, apparently the drought only exerts a helping effect when accelerating the senescence of the leaf; and it presents morphological and physiological characteristics similar to species adapted to live in habitats with high solar radiation and moisture limitations.Considerando el cultivo de Ilama (Annona diversifolia Saf.) como alternativa sustentable de la fruticultura en trópico seco, se realizó su caracterización fenológica, anatómica in situ y una evaluación de dormancia en condiciones controladas. La Ilama es una especie semi-caducifolia de ciclo fenológico anual discontinuo con una etapa de crecimiento activo y otra de dormancia. El ciclo inicia en marzo-abril con la aparición de brotes reproductivos y vegetativos, la apertura floral tiene lugar en marzo-mayo, fructifica por cinco meses (mayo-septiembre); el crecimiento de ramas, brotes y hojas inicia en primavera y termina en verano. La temperatura es el factor preponderante en la defoliación, aparentemente la sequía solo ejerce un efecto coadyuvante al acelerar la senescencia de la hoja; y presenta características morfológicas y fisiológicas semejantes a especies adaptadas a vivir en hábitats con alta irradiación solar y limitaciones de humedad

Artificial intelligence and journalism: Systematic review of scientific production in Web of Science and Scopus (2008-2019)

Research about the use of Artificial Intelligence applied to journalism has increased over the years. The studies conducted in this field between January 2008 and December 2019 were analysed to understand the contexts in which they have been developed and the challenges detected. The method used consisted of a systematic review of the scientific literature (SLR) of 209 scientific documents published in the Web of Science and Scopus databases. The validation required the inclusion and exclusion criteria, database identification, search engines and evaluation and description of results. The findings indicate that the largest number of publications related to this topic are concentrated in the United States and that the rise of scientific production on Artificial Intelligence in journalism takes place in 2015, when the remarkable growth of these publications begins, until reaching 61 in 2019. It is concluded that research is mainly published in scientific journals, which include works that handle a broad variety of topics, such as information production, data journalism, big data, application in social networks or information checking. In relation to authorship, the trend is the presence of a single signer.La investigación sobre el uso de la Inteligencia Artificial aplicada al periodismo se ha intensificado en los últimos años. Este artículo analiza los estudios producidos en este campo entre enero 2008 y diciembre 2019, a fin de conocer qué investigaciones se han realizado y cuáles son los contextos en los que se han desarrollado. El método ha sido una revisión sistemática de la literatura científica (SLR) de 209 documentos científicos publicados en las bases de datos Web of Science y Scopus. La validación ha seguido los criterios de inclusión y exclusión, identificación de la base de datos, motores de búsqueda y evaluación y descripción de resultados. Los hallazgos indican que en Estados Unidos se concentra el mayor número de publicaciones relacionadas con este tema y que el auge de la producción científica sobre la Inteligencia Artificial en periodismo se produce en 2015, cuando empieza el crecimiento notable de estas publicaciones, hasta alcanzar las 61 en 2019. Se concluye que las investigaciones se publican principalmente en revistas científicas, que incluyen trabajos que versan sobre una amplia variedad de temas, como la producción informativa, el periodismo de datos, el big data, la aplicación en redes sociales o el chequeo de información. En relación con la autoría, la tendencia es la presencia de un único firmante

Management of risk factors associated with chronic oral lesions in sheep

Oral disorders constitute a significant cause of weight loss in sheep. In a study of disorders of the oral cavity of 36, 033 sheep from 60 meat sheep flocks in Spain, we looked for management risk factors associated with chronic oral lesions. Mandibular and maxillary disorders were assessed as an external manifestation of oral lesions by palpation, searching for tissue swellings, fistulae, or open wounds. The prevalence of flocks containing sheep with jaw disorders was 98.3%, with an average individual prevalence of 5.5%. The majority of lesions were located in in the mid-region of the mandible, and the most relevant risk factor was increasing age. Use of acidic diets based on silage and inclusion of hard foods, such as maize straw or hay, was associated with the occurrence of jaw inflammation. It was concluded that hard diets containing plant material with edges and sharp areas, plus acidic foods including silage, are more likely to cause lesions of the gingiva, enabling entry of pathogens to the oral mucosa that eventually establish locally in bony tissues, usually as mandibular osteomyelitis. It was also observed that mineral supplementation appears to prevent the occurrence of these lesions