193 research outputs found

    Allergen-Based Diagnostic: Novel and Old Methodologies with New Approaches

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    This chapter is an extensive review of allergen-based diagnostic methodologies including old techniques such as skin prick test, radio-allergo sorbent test, enzyme-linked immunosorbent assay, and fluorescent-enzyme immunosorbent assay. Novel technologies include functional tests by flow cytometry and molecular allergy based on multiplex immunoassays. We also review the importance of biochemical characteristics of allergens, sensitivity and specificity, cross-reaction between allergens, utility, reproducibility, interpretation, and methodologies for discovery of epitopes for diagnostic or therapeutic use

    La relación entre gestión familiar y desempeño en las pymes: los efectos mediadores del uso de sistemas de control de gestión y los logros en la innovación tecnológica

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    We study the influence of family management on firm performance in SMEs, analysing the mediating role of management control systems and the achievement of technological innovation in the former relationship. We used data from a survey addressed to firm managers in Murcia (Spain) and we checked our models using Partial Least Squares (PLS). We find empirical support for a positive mediating influence of management control systems and the achievement of technological innovation on the relation between family management and firm performance. Hence, the higher is the use of management control systems and the greater the creation of technological innovation, the more likely it is that family-managed firms perform better. Moreover, we show that the use of management control systems has both a direct and indirect –through its incidence on the obtaining of TI- influence on firm performance. Therefore, our paper stresses the importance of considering that family managers may utilize management control systems and the obtaining of technological innovation as a mean to improve firm performanceUniversidad de Málaga. Campus de Excelencia Internacional Andalucía Tech

    Instalaciones avícolas

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    Cartilla de la serie “Especies menores” en la que describe en detalle los sistemas de crianza y producción de aves más eficientes así como sus ventajas y limitacionesPrimer of the series "Minor species" in which it describes in detail the most efficient breeding and production systems of birds as well as their advantages and limitationsSistemas de explotación de aves -- Sistema extensivo -- Sistema semi-intensivo -- Sistema intensivo -- Galpón rústico para 100 gallinas -- Galpón para 2000 gallinas -- Sistemas de alojamiento -- Alojamiento en piso -- Sobre vasija o cama gruesa -- Biodegradación de la cama -- Producción de gallinaza -- Sobre listones o varetas -- Sobre listones y malla gruesa -- sistema intensivo en jaulas -- Ventajas de la jaula -- Limitaciones -- Galpón para sistema en jaulas -- Características de las jaulas -- Tipos de jaulas -- Iluminación -- Importancia -- iluminación para pollos de engorde -- Iluminación para aves adultas -- Iluminación para reproductoras -- Intensidad de iluminación -- Cálculos de iluminaciónna74 página

    The effect of countries’ health and environmental conditions on restaurant reputation

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    Corporate reputation enhancement in the restaurant industry has recently been increasingly driven by the central importance of consumer review websites and customers’ greater awareness of sustainable practices regarding health and the environment. In this context, the research question of the present study was if there is a relationship between health and environmental conditions, and restaurants’ corporate reputation on a country level. Trying to answer this question, the present study sought to analyze the e ects of countries’ health and environmental conditions on their restaurants’ corporate reputation, thereby contributing to the existing knowledge about how sustainable environments influence the industry’s competitiveness. The research design included di erent methodological approaches, and was divided into three main phases: restaurant corporation identification, reputation database design, and results. To this end, reputation data from a consumer review website were gathered for a sample of restaurant corporations and establishments connected to the European countries on the Healthiest Country Index.The methods were based on regression analysis. The results indicate that restaurant reputation improves in healthy, sustainable environments, specifically in countries ranked as the healthiest. These findings provide a better understanding of how aspects related to health and environmental sustainability influence corporate reputation.FCT: UIDB/04020/2020;info:eu-repo/semantics/publishedVersio

    Alojamiento y medio ambiente

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    Cartilla en la que se da una visión general sobre los efectos del medio ambiente en el comportamiento de las especies menores y como crear microclimas en alojamientos de aves, cerdos, conejos, cabras y ovinos para mejora en su cría y producción.Primer in which an overview is given on the effects of the environment on the behavior of minor species and how to create microclimates in bird, pig, rabbit, goat and sheep housing for improvement in their breeding and production.Función del alojamiento -- La temperatura -- Humedad y ventilación -- El GalpónnaDocumento producto del convenio SENA - Barneveld College (Holanda)39 página

    Salicylic acid and nutrient immersion to maintain apple quality and bioactive compounds in postharvest

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    The world production of apples in the 2019 cycle reached 7´620,288 tonnes. For marketing purposes and to supply the demand, apple fruits need to be stored for different periods under refrigerated conditions. However, in the market, the shelf life of the fruit is short, the quality decreases in postharvest due to the dynamic changes of its physicochemical properties, which cannot be stopped, but can be slowed down to improve its shelf life. Postharvest treatments by immersing apple fruit in salicylic acid (SA) and nutrients are an innovative technological alternative to maintain their quality. In this study, 5 concentrations were tested for the immersion of apple fruits cv ‘Golden Delicious’, using a 56 factorial arrangement delimited to 25 treatments, using the Taguchi L25 structure: SA 0 - 1.440 mM, potassium (K) 0 - 2.250, calcium (Ca) 0 - 31.500 mM, cobalt (Co) 0 - 0.180 mM, molybdenum (Mo) 0 - 0.0900 mM and magnesium (Mg) 0 - 0.0900 mM. The study was conducted in the municipality of Cuauhtémoc, Chihuahua, Mexico. After 7 months of storage and 13 days of shelf life, the combination of K, Ca, SA and Co with the appropriate concentration values can maintain the quality variables and bioactive compounds at the desired optimum. It is concluded that the quality variables; firmness, juice percentage, juice density, titratable acidity and total soluble solids and the bioactive compounds; total phenols and antioxidant capacity can be maintained at the desired optimum

    Salicylic acid and nutrient sprays to improve apple fruit quality

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    Maturity at harvest is one of the most important properties that determine the final quality of the apple fruit. Appearance, texture, flavour and nutritional value are qualities that consumers evaluate empirically to decide whether to eat the fruit again. Within agricultural practices in and out of the orchard, the relationship between plant nutrition and fruit quality is important, and proper nutrient balance is essential to maintain fruit quality. This research work was carried out on ‘Golden Delicious’ and ‘Red Chief’ apple trees. A 56 factorial arrangement was used, with 5 concentrations and 6 factors, 25 treatments in a Taguchi L25 structure. Improvements were found in parameters for fruit finish and fruit quality. The factors with the greatest positive effect on quality in order of importance were Salicylic Acid (SA) 1.0 mM, Potassium (K) 58.90 mM, Molybdenum (Mo) 0.516 mM, Calcium (Ca) 70.00 mM and Cobalt (Co) 8.248 mM and in order of importance the following variables: TSS/acidity ratio, total soluble solids TSS, antioxidant capacity (AC), total phenols (TF), and titratable acidity (TA) in ‘Golden Delicious’ apple. Considering ‘Red Chief’, the factors Ca 70.00 mM, K 58.79 mM and SA 1.0 mM, with the variables; TA, TSS/acidity ratio, TF, TSS and AC that finally lead to an optimal development of finish and quality in the apple fruit

    Family management and firm performance in family SMEs: the mediating roles of management control systems and technological innovation

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    The aim of this research is to analyze the mediating role of the use of management control systems (MCS) and the achievement of technological innovation (TI) in the relationship between family management and firm performance in family small and medium-sized enterprises (SMEs). A questionnaire was conducted by 617 managers of family SMEs in Spain, and our model was tested using partial least squares. Our findings show that both MCS and TI play crucial mediating roles in the understanding of the relationship between family management and firm performance. As a result, family-managed firms that utilize MCS and produce TI are much more likely to generate better performance. These results encourage family managers to use formal MCS because in that way they will contribute to obtaining better firm performance, directly and indirectly through TI. We focus on private family SMEs, because these specific firms contribute significantly to the economies worldwide. This paper contributes to resolve the controversy regarding the relationship between family management and firm performance introducing MCS and TI as mediating factors.Agência financiadora Ministry of Science and Innovation, Spain (MICINN) UID/SOC/04020/2013 Universidad de Malaga Universidad de Cartagenainfo:eu-repo/semantics/publishedVersio

    Masa fúngica intracardiaca en un paciente prematuro extremo

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    There are few reports on intracardiac fungal masses, especially in the pediatric population. We present the case of an extremely premature patient who, after being hospitalized since birth in an intensive care unit, developed fungal masses in the right atrium, which, due to their size, location and resistance to medical treatment, required surgical excision. For this reason, at the slightest suspicion of systemic candidiasis in pediatric patients, it is mandatory to include an echocardiogram in the defocalization examinations to rule out endocarditis and thus avoid the development of intracardiac fungal masses. Therefore, early detection for timely medical management may avoid the surgical approach associated with a high risk of morbidity and mortality in extremely premature patients.Existen pocos reportes sobre masas fúngicas intracardiacas, sobretodo en la población pediátrica. Presentamos el caso de un paciente prematuro extremo que, al permanecer hospitalizado desde su nacimiento en una unidad de cuidados intensivos desarrolló masas fúngicas en atrio derecho, las cuales, por su tamaño, ubicación y resistencia al tratamiento médico, necesitaron de exéresis quirúrgica. Por tal motivo, ante la mínima sospecha de candidiasis sistémica en pacientes pediátricos, es mandatorio incluir en los exámenes de desfocalización un ecocardiograma para descartar endocarditis y así evitar el desarrollo de masas fúngicas intracardiacas. Por lo tanto, la detección precoz para un manejo médico oportuno puede evitar el abordaje quirúrgico que se asocia a un alto riesgo de morbimortalidad en pacientes prematuros extremos

    Estudio de insecticidas para el control de mosca blanca Bemisia tabaci Genn enn el cultivo del frijol Phaseolus vulgaris L.

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    Se evaluaron nuevos plaguicidas para reducir las poblaciones de la mosca blanca (Bemisia tabaci Genn), vector del Mosaico Dorado del frijol (BGMV), en el Valle de Zapotitán y la Estación Experimental de San Andrés a 460 mnsm, durante la época seca a partir del 22 de diciembre de 1989 a mayo de 1990. Las variedades de frijol utilizadas fueron Rojo de Seda, Sangre de toro y CENTACuscatleco. Se utilizó un diseño experimental de bloques al azar, con 4 y 5 repeticiones, y un total de 4 ensayos. Se encontró en el primer y segundo ensayo que bifentrin 100 EC (60 g.i.a./ha) y fenpropatrin 375 FC (203 g.i.a./ha) fueron eficaces para el control de la mosca blanca, y redujeron la incidencia del mosaico dorado. Cuando B. tabaci no se controló eficazmente la incidencia de BGMV alcanzó un 100% entre los 36 y 32 días después de la siembra, en las variedades susceptibles Rojo de Seda y Sangre de Toro. En los ensayos tres y cuatro se utilizaron además tratadores de semilla y suelo combinados con aspersiones al follaje. Los mejores rendimientos se produjeron con los tratamientos de carbosulfan + bifentrin (1519,9 kg/ha), acephato + bifentrin (1428 kg/ha) en la variedad resistente CENIA Cuscatleco, acephato + fenpropatrin (756,6 kg/ha), acephato + bifentrin (725,1 kg/ha) y carbofuran + fenpropatrin (636,3 g/ha) en la variedad susceptible Rojo de Seda. De los productos evaluables, fenpropatrin 375 EC, fue el que mostró las poblaciones más bajas de huevos y ninfas de B. tabaci. Existió una correlación significativa entre la época de aparición de los síntomas de la enfermedad BGMV y la producción. El tratamiento acephato 95% + bifentrin 100 EC el mayor beneficio neto seguido por carbofuran 5% g + bifentrin 100 EC
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