Evaluation of the Inclusion of the Green Seaweed Ulva ohnoi as an Ingredient in Feeds for Gilthead Sea Bream (Sparus aurata) and European Sea Bass (Dicentrarchus labrax)

Simple Summary The use of seaweeds in aquafeeds is receiving increasing attention due to their potential nutritional and functional benefits. However, several green seaweeds such as Ulva presents nutritional limitations because of the undigestible polysaccharides, although these may exert a positive effect on the immunological status of the fish. The present study developed three different experiments aimed to re-evaluate the presence of protease inhibitors described for Ulva ohnoi, to assess its nutritional value as an ingredient and also to evaluate its potential protective effect on the oxidative metabolism of fish, being experiments developed in two different fish species (European sea bass Dicentrarchus labrax and gilthead sea bream, Sparus aurata). Results indicate the absence of negative effects of U. ohnoi on protein digestion of sea bream but a limited value as a feed ingredient. In contrast, its contents in bioactives seem to be correlated to the observed positive effects on the immune status and oxidative metabolism when fish are challenged by the consumption of highly oxidized dietary oil. This study evaluated the use of Ulva ohnoi as an ingredient in feeds for aquaculture in three different experiments. Experiment 1 was oriented to confirm the negative effect of U. ohnoi on fish digestion. Experiment 2 assessed the effect on growth, feed efficiency, and immune status of juvenile sea bass (Dicentrarchus labrax) fed on diets including U. ohnoi, previously treated or not with carbohydrases used to partially hydrolyze indigestible polysaccharides. Experiment 3 was aimed to evaluate the potential protective effect of U. ohnoi on the oxidative status of sea bream (Sparus aurata) challenged by the consumption of a feed formulated with the oil fraction completely oxidized. Results show a negligible effect of U. ohnoi meal on protein digestion when included in feeds at levels of 10% or less. Moreover, results of growth and feed use evidenced the possibility of using up to 5% inclusion of algal meal in feeds without adverse effects on the zootechnical parameters, while the enzyme pretreatment was ineffective to improve its nutritional use. Finally, the inclusion of U. onhoi in feeds determined both an immunostimulatory effect, evidenced by an increase in skin mucus lysozyme in the two mentioned fish species, and a positive influence on the oxidative metabolism of seabream when fed on a diet including rancid oil.This research was funded by the Excellence Campus of Marine Science (CEIMAR) within the "III Call for Innovative Projects in the field of Blue Economy"

Historia de la legislación española : desde los tiempos más remotos hasta nuestros días

Digitalización. Vitoria-Gasteiz : Archivos y Bibliotecas, Abril 199

Perceptions about the sexuality of women with fibromyalgia syndrome: a phenomenological study

Aims: The aim of this study was to explore and understand the perceptions and experiences of women with fibromyalgia syndrome regarding their sexuality. Background: Fibromyalgia syndrome is a chronic pathology, which compromises a woman’s physical, mental and emotional health. Although concerns related to sexuality are commonly reported, research has tended to focus on the physical symptoms. Design: An interpretive qualitative research methodology using Gadamer’s philosophical hermeneutics was carried out. Methods: This qualitative study explores the sexuality of women with fibromyalgia syndrome. A focus group and semi-structured interviews were conducted with 13 women with fibromyalgia syndrome. Data were collected between April - June 2014. Participants were recruited until findings reached saturation. Findings: Three themes define the perception of sexuality for these women: (i) Physical impact: don’t touch, don’t look; (ii) Sexuality and identity: fighting against their loss; (iii) Impact on the relationship: sexuality as a way of connecting the couple. Conclusion: Despite limitations, sexuality is important for the identity and quality of life of women with fibromyalgia syndrome. Together with the physical symptomology, guilt, fear and a lack of understanding compromise the coping process. Women need the support of their partner, their socio-family environment and health professionals. Nurses can aid the successful adjustment to sexual problems related to fibromyalgia syndrome

The diagnosis of hereditary angioedema: family caregivers’ experiences

The aim of this study was to understand the experiences of family caregivers in the process of diagnosing hereditary angioedema. An interpretive and qualitative research methodology based on Gadamer’s philosophical hermeneutics was carried out. Data collection took place between May 2015 and August 2016 and included a focus group and in-depth interviews with 16 family caregivers. Two themes define the experiences of family caregivers: “Family life focuses on identifying the problem” and “Discovering and coping with a complex diagnosis.” The process of diagnosis generates fear, anxiety, uncertainty, and incomprehension. Family caregivers are the main support for patients diagnosed with hereditary angioedema. As they share in the patients’ suffering, they need a diagnosis to be established to be able to cope with the disease and offer support. Family health nurses can contribute to improving the coping process in this phase of the disease

Actitudes implícitas y explícitas sobre autodeterminación en Síndrome de Down.

El objetivo del presente trabajo es analizar las actitudes implícitas y explícitas sobre la autodeterminación de personas con Síndrome de Down. Para ello se ha analizado una muestra de 156 personas que respondieron a dos cuestionarios (uno de ellos sobre una persona con Síndrome de Down y el otro sobre una persona neurotípica sin discapacidad intelectual). Los resultados muestran un índice de autodeterminación ligeramente menor en una persona con DI frente a una persona sin discapacidad, pero se destaca que el tiempo de respuesta en el cuestionario de DI es bastante superior (casi el doble de minutos) que el de una persona neurotípica sin DI. <br /

El efecto de los temporales de viento en la laurisilva de anaga (Tenerife. I. Canarias). La tormenta delta de noviembre de 2005

La accidentada topografía del Macizo de Anaga y la localización de la laurisilva en los relieves más expuestos contribuyen a que los daños forestales inmediatos de los temporales sean notorios. La relación de este efecto con la magnitud del vendaval está cada vez más condicionada por el aumento de la madurez del bosque debido al abandono de los aprovechamientos forestales. 18 meses después de la tormenta Delta el bosque evidencia un proceso de autosucesión y el fin del enriquecimiento del sotobosque con especies herbáceas heliófilas. Esta dinámica indica que a medio y largo plazo las consecuencias serán exclusivamente fisonómicas. Tras comprobar la recurrencia histórica de estos fenómenos atmosféricos, el objetivo final de la investigación iniciada con este trabajo es valorar la importancia de los temporales de viento en la dinámica del paisaje forestal de Anaga

Técnicas de predicción mediante minería de datos en la industria alimentaria bajo el paradigma de Industria 4.0

Un objetivo del paradigma de Industria 4.0 es convertir los datos en información útil para la toma de decisiones. Tras el término de minería de datos (Data Mining) se engloba un conjunto de técnicas dirigidas a la extracción de conocimiento procesable y que se encuentra implícito en los datos analizados. Las técnicas de minería de datos se emplean para mejorar el rendimiento de procesos productivos o industriales en los que se manejan grandes volúmenes de información estructurada. Las técnicas de predicción se basan en el análisis de datos para predecir funciones de valores continuos. La industria alimentaria es una industria de especial relevancia en nuestro país. Poder ajustar el proceso de producción al volumen de demanda, tipo de materia prima, composición y a las condiciones de funcionamiento de la fábrica permitirá tomar decisiones que lleven a la reducción de costes, a la mejora del control y a la reducción de las incidencias técnicas con clientes. En este trabajo se mostrarán como las principales técnicas de predicción pueden ser aplicadas a la industria alimentaria, en aras de avanzar hacia los objetivos que propone la Industria 4.0.One objective of the Industry 4.0 paradigm is to convert data into useful information for decision making. After the term of Data Mining, a set of techniques is included, aimed at the extraction of processable knowledge and that is implicit in the analyzed data. Data Mining techniques are used to improve the performance of productive or industrial processes in which large volumes of structured information are handled. Prediction techniques are based on data analysis to predict continuous value functions. The food industry is an industry of special relevance in our country. Being able to adjust the production process to the volume of demand, type of raw material, composition and the operating conditions of the factory will allow decisions to be taken that reduce costs, improve control and reduce technical incidents with customers. In this paper we will show how the main prediction techniques can be applied to the food industry, to advance towards the objectives proposed by Industry 4.0

Non-destructive test approach for assessing the amount of fibre in polymeric fibre reinforced concrete

Over the past decade, significant efforts have been made to develop polymeric-based macro-fibre reinforced concrete (PFRC) for structural applications. Consequently, remarkable growth has been reported in the use of this type of fibres as concrete reinforcement. However, advances in quality control methods for PFRC lie behind any progress observed in polymeric fibre (PF) technology. In particular, cost-effective and efficient test procedures for quantifying the amount of fibre in fresh/hardened concrete matrices are, to the author’s best knowledge, non-existent, hindering the expansion of this innovative concrete reinforcement. This paper discusses a non-destructive method based on measuring electrical impedance to assess the content of polymeric fibres embedded in concrete matrices. A detailed experimental programme was performed to prove the capacity of the test method to obtain reliable results. The results confirm that the test approach proposed herein has interesting potential as a quality control method.Postprint (published version