Quantum codes from a new construction of self-orthogonal algebraic geometry codes

[EN] We present new quantum codes with good parameters which are constructed from self-orthogonal algebraic geometry codes. Our method permits a wide class of curves to be used in the formation of these codes. These results demonstrate that there is a lot more scope for constructing self-orthogonal AG codes than was previously known.G. McGuire was partially supported by Science Foundation Ireland Grant 13/IA/1914. The remainder authors were partially supported by the Spanish Government and the EU funding program FEDER, Grants MTM2015-65764-C3-2-P and PGC2018-096446-B-C22. F. Hernando and J. J. Moyano-Fernandez are also partially supported by Universitat Jaume I, Grant UJI-B2018-10.Hernando, F.; Mcguire, G.; Monserrat Delpalillo, FJ.; Moyano-Fernández, JJ. (2020). Quantum codes from a new construction of self-orthogonal algebraic geometry codes. 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Sostenibilidad y arquitectura tradicional: El caso de Moratalla (Murcia, España)

This paper attempts to demonstrate the relationship between sustainability and vernacular architecture, being focused on a specific research carried out in the old part of Moratalla, a town in Murcia (Spain).This study has been possible thanks to the collection of 265 field records with in situ data so that quality and quantity can be measured. All these are distinctive parameters of vernacular architecture of the centre in the Middle Ages, what teaches us an important lesson of how traditional construction is environmentally friendly and sustainable, thus leading to more practical bioclimatic architecture. The current study relies on an agreement between the Catholic University of Murcia (UCAM) and the town council of the aforementioned town (Moratalla), what gives an idea of its importance. Some recommendations have been included at the end of the paper to be taken into account by municipal legislation so that our building heritage can be preserved and maintained.``El Patrimonio Tradicional o Vernáculo construido es la expresión fundamental de la identidad de una comunidad, de sus relaciones con el territorio y al mismo tiempo, la expresión de la diversidad cultural del mundo (ICOMOS 1999)´´. Este trabajo trata de evidenciar la relación existente entre la Arquitectura Vernácula y los parámetros de sostenibilidad presentes en ella. Se ha elaborado un estudio de caso en el casco antiguo del municipio de Moratalla en la provincia de Murcia (España), con la realización de 265 fichas con datos de campo tomados in situ en las que se trata de extraer con datos cualitativos y cuantitativos la medida de parámetros como: orientación de las calles, orientación de fachadas principales, presencia de huecos de reducida dimensión, relación entre partes opacas y huecos en fachadas, presencia de calles estrechas que propician la sombra, presencia de protecciones solares en huecos, fachadas en colores claros, disposición adaptada a la topografía, muros de gran inercia térmica, enfriamiento evaporativo mediante agua y/o vegetación, presencia de patio interior, construcción mediante materiales locales y sostenibilidad espacial. Todos ellos son parámetros propios de la Arquitectura Vernácula de este centro preindustrial de origen medieval que nos dan una importante lección de cómo las construcción tradicional consideraba estos parámetros ambientales y sostenibles que hoy se busca con la arquitectura bioclimática. Este trabajo se ampara en un convenio de colaboración entre el ayuntamiento de la localidad y la UCAM Universidad Católica San Antonio de Murcia y debe ser referente para el análisis previo a cualquier intervención en este casco viejo. Las conclusiones incluyen una serie de recomendaciones a seguir por la legislación municipal con la intención de conocer, preservar y mantener nuestro patrimonio construido

A Milestone-Driven Approach for Lab Assignments Evaluation in Information Security

In this paper we describe a methodology for designing and evaluating lab assignments based on the fulfilment of milestones. The approach relies on the integration of ICTs with an automatic, milestone-based evaluation. The final goal of this methodology is to diminish educators’ workload on lab assignments, so they can focus on the development of the assigned tasks, and to enhance students’ experience by providing direct and real-time feedback on their progress. This approach encourages autonomous learning on the students and optimizes the time invested by the educators during the lab assignments. In order to validate our proposal we have applied this methodology in several courses related to Information Security. The results of this experience show that the methodology improves students’ performance, while facilitating the work of the educator.Universidad de Málaga. Campus de Excelencia Internacional Andalucía Tech

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"

Solid-State Hydrolysis (SSH) Improves the Nutritional Value of Plant Ingredients in the Diet of Mugil cephalus

The possibility of improving the nutritional quality of plant byproducts (brewers’ spent grain and rice bran) through an enzyme treatment was tested in a formulated feed for grey mullet (Mugil cephalus). The enzyme treatment was carried out by Solid-State Hydrolysis (SSH) using a commercial preparation including carbohydrases and phytase. A feed prepared without the treatment and a commercial feed for carp were used as controls. In a preliminary short-term trial carried out at laboratory facilities, fish receiving the enzyme-treated feed showed significant improvement in both FCR and SGR when compared to those obtained with the untreated diet, although both experimental diets presented worse values than those obtained with the commercial feed. Different metabolic indicators including higher values of muscle glycogen and plasmatic triglycerides supported the positive effect of the enzyme treatment on the nutritional condition of the fish over those fed on the diet containing non-treated ingredients. Results of growth and feed efficiency that were obtained in a second long-term trial developed for 148 days under real production conditions evidenced the equivalence among the experimental and commercial diets and confirmed that enzyme pretreatment of plant ingredients by SSH may be a useful procedure to improve the nutritive value of high fiber plant byproducts when included in practical diets for this species and others with similar nutritional features

Ontogeny of Expression and Activity of Digestive Enzymes and Establishment of gh/igf1 Axis in the Omnivorous Fish Chelon labrosus

Simple Summary Thick-lipped grey mullet (Chelon labrosus) feeds on the lowest trophic levels during adult stages, for which it is considered a viable candidate for an economically and environmentally sustainable aquaculture. Similar to most of marine fish species, C. labrosus produce a large number of eggs, leading to morphologically and anatomically larvae that are not completely mature and have to pass through substantial differentiation and development in their functional systems to acquire adult features. Therefore, the study of the development of digestive tract and of the growth regulation can provide useful information to adapt the feeding protocols and rearing conditions to the physiological requirements at each stage. This work aimed to evaluate the early ontogeny of key digestive enzymes and somatotropic factors at biochemical and/or transcriptional levels. Our results evidenced that maturation of the digestive system and acquisition of the adult mode of digestion occurs around 60 to 70 days post hatch (dph), when starch or other low-cost carbohydrate-based compounds could be used in formulated diets at increasing levels. Furthermore, our results implied an independent expression of the studied somatotropic genes during the first 40 dph and establishment of a functional growth hormone/insulin-like growth factor 1 axis from 50 dph onward. Abstract Thick-lipped grey mullet (Chelon labrosus) is a candidate for sustainable aquaculture due to its omnivorous/detritivorous feeding habit. This work aimed to evaluate its digestive and growth potentials from larval to early juvenile stages. To attain these objectives the activity of key digestive enzymes was measured from three until 90 days post hatch (dph). Expression of genes involved in digestion of proteins (try2, ctr, pga2, and atp4a), carbohydrates (amy2a), and lipids (cel and pla2g1b), together with two somatotropic factors (gh and igf1) were also quantified. No chymotrypsin or pepsin activities were detected. While specific activity of trypsin and lipase were high during the first 30 dph and declined afterward, amylase activity was low until 57 dph and increased significantly beyond that point. Expression of try2, ctr, amy2a, and cel increased continuously along development, and showed a peak at the end of metamorphosis. Expression of pla2g1b, pga2 and atp4a increased until the middle of metamorphosis and decreased afterwars. Most of these trends contrast the usual patterns in carnivorous species and highlight the transition from larvae, with high protein requirements, to post-larvae/juvenile stages, with omnivorous/detritivorous feeding preferences. Somatotropic genes, gh and igf1, showed approximately inverse expression patterns, suggesting the establishment of the Gh/Igf1 axis from 50 dph

Elevated temperature may reduce functional but not taxonomic diversity of fungal assemblages on decomposing leaf litter in streams

First published: 15 October 2021Mounting evidence points to a linkage between biodiversity and ecosystem functioning (B-EF). Global drivers, such as warming and nutrient enrichment, can alter species richness and composition of aquatic fungal assemblages associated with leaf-litter decomposition, a key ecosystem process in headwater streams. However, effects of biodiversity changes on ecosystem functions might be countered by the presumed high functional redundancy of fungal species. Here, we examined how environmental variables and leaf-litter traits (based on leaf chemistry) affect taxonomic and functional alpha- and beta-diversity of fungal decomposers. We analysed taxonomic diversity (DNA-fingerprinting profiles) and functional diversity (community-level physiological profiles) of fungal communities in four leaf-litter species from four subregions differing in stream-water characteristics and riparian vegetation. We hypothesized that increasing stream-water temperature and nutrients would alter taxonomic diversity more than functional diversity due to the functional redundancy among aquatic fungi. Contrary to our expectations, fungal taxonomic diversity varied little with stream-water characteristics across subregions, and instead taxon replacement occurred. Overall taxonomic beta-diversity was fourfold higher than functional diversity, suggesting a high degree of functional redundancy among aquatic fungi. Elevated temperature appeared to boost assemblage uniqueness by increasing beta-diversity while the increase in nutrient concentrations appeared to homogenize fungal assemblages. Functional richness showed a negative relationship with temperature. Nonetheless, a positive relationship between leaf-litter decomposition and functional richness suggests higher carbon use efficiency of fungal communities in cold waters.Spanish Ministry of Education, Culture and Sports, Grant/Award Number: EST16/00771 and FPU13/01021; Spanish Ministry of Science and Innovation, Grant/Award Number: CGL2012-39635; 2014-2020 FEDER Operative Program Andalusia, Grant/Award Number: FEDER-UAL18-RNM-B006-B; Portuguese Foundation for Science and Technology; COMPETE2020 - Programa Operacional Competitividade e Internacionalizacao (POCI), Grant/Award Number: PTDC/ CTA-AMB/31245/201

Validación de dos algoritmos para la localización 3D del instrumental laparoscópico a partir de la imagen de vídeo endoscópico

Uno de los aspectos fundamentales en un sistema de cirugía guiada por imagen (CGI) es la localización del instrumental quirúrgico con respecto a la anatomía del paciente. Los sistemas basados en sensores ofrecen buenos niveles de precisión, pero son sensibles a distintas fuentes de ruido en el quirófano y contribuyen a la sobrecarga tecnológica del mismo. Una alternativa novedosa es analizar la imagen del vídeo endoscópico para llevar a cabo la detección y localización espacial del instrumental. Se presenta en este trabajo la validación de dos métodos, basados en el diámetro aparente y en la sección transversal del instrumental, para la localización espacial del instrumental a partir de los bordes y la posición 2D de la punta en la imagen. La validación, llevada a cabo en un simulador físico, se realiza comparando los resultados con el sistema Kinescan/IBV. Los resultados muestran para cada método un error medio de 12,7 y 12,8 mm respectivamente. La incorporación de estos algoritmos dentro del paradigma de navegación propuesto en el proyecto THEMIS permitirá al cirujano conocer la posición del instrumental de forma no intrusiva y transparente, sin necesidad de equipamiento adicional en el quirófano

Los planes de desarrollo sostenible en el medio rural: el caso de Sierra Nevada

MEDIO RURAL Y SOSTENIBILIDAD IV CONGRESO ANDALUZ DE DESARROLLO SOSTENIBLE VIII CONGRESO ANDALUZ DE CIENCIAS AMBIENTALE

Experiencias de cultivo con plantas autóctonas, de valor condimentario, aromático y nutricional en agricultura ecológica como instrumento de desarrollo rural y de protección de la biodiversidad

MEDIO RURAL Y SOSTENIBILIDAD IV CONGRESO ANDALUZ DE DESARROLLO SOSTENIBLE VIII CONGRESO ANDALUZ DE CIENCIAS AMBIENTALE