Efectes d’un entrenament planificat i controlat en minibàsquet (11 i 12 anys) sobre la potència anaeròbica

L’objectiu d’aquest treball ha estat avaluar els efectes que té, en nens, la participació en el programa d’entrenament esportiu dissenyat i controlat en minibàsquet, mitjançant l’índex de Korcek (GE, N = 12), sobre la potència anaeròbica en comparació amb un grup d’entrenament no planificat (GC, N = 12). El control del programa es va realitzar registrant la freqüència cardíaca mitjançant Sport Tester en les sessions d’entrenament i ajustant-ne la càrrega, segons l’índex de Korcek, als microcicles establerts en la planificació anual. El programa d’entrenament es va realitzar al llarg de set mesos, amb recollides de dades en dos moments diferents (primer mes i setè mes). La valoració de la potència anaeròbica es va estimar mitjançant la realització del test de Wingate en cicloergòmetre. Es van controlar les variables d’edat cronològica i biològica, pes, alçària, dos perímetres musculars, dos diàmetres ossis i tres plecs cutanis, i totes les variables van ser valorades seguint les normes establertes per l’“IWGK” i “GREC”. Els resultats mostren millores de la potència anaeròbica en el GE. Els components del GE presenten millores significatives en la resistència anaeròbica respecte del GC, i milloren de manera substancial l’índex de fatiga

Distribución, abundancia, diversidad y atributos bioecológicos de especies de chrysopidae (neuroptera) asociadas a frutales del centro y norte de México

La familia Chrysopidae (Neuroptera) integra una gran cantidad de especies que exhiben hábitos arbóreos, las cuales podrían ser de gran importancia en el control de plagas en los diversos árboles frutales de México; sin embargo, el potencial de estos insectos benéficos ha sido ignorado o subestimado debido a la escasa disponibilidad de estudios taxonómicos de este grupo en el país. El presente estudio fue realizado con los objetivos del identificar y determinar la distribución, abundancia, diversidad y bioecología de especies de Chrysopidae asociadas a frutales del centro y norte de México, para contribuir en la protección, conservación y aprovechamiento de estos agentes de control biológico en el país. De octubre de 2003 a diciembre de 2005 se realizaron muestreos en 10 especies frutales localizadas en 13 estados del país, y se desarrollaron estudios de tablas de vida para Ceraeochrysa sp. nr. cincta (Schneider) (México) y Eremochrysa punctinervis (McLachlan), bajo condiciones controladas de laboratorio. De los especimenes obtenidos se identificaron 18 especies agrupadas en seis géneros: Ceraeochrysa caligata (Banks), Ceraeochrysa sp. nr. cincta (México) (Schneider), Ceraeochrysa claveri (Navás), Ceraeochrysa smithi (Navás), Ceraeochrysa valida (Banks), Chrysopa nigricornis Burmeister (este), Chrysopa nigricornis Burmeister (oeste), Chrysopa oculata Say, Chrysopa quadripunctata Burmeister, Chrysoperla carnea s. lat. Stephens, Chrysoperla comanche Banks, Chrysoperla exotera Navás, Chrysoperla externa Hagen, Chrysoperla rufilabris Burmeister Eremochrysa punctinervis Banks, Meleoma arizonensis (Banks), Meleoma colhuaca Banks (Subfamilia Chrysopinae: Tribu Chrysopini) y Leucochrysa (Nodita) sp. Navás (Subfamilia Chrysopinae: Tribu Leucochrysini). Las especies C. comanche, C. sp. nr. cincta (México) y C. valida, fueron las más abundantes y con mayor distribución. Los frutales con mayor abundancia de especies de Chrysopidae fueron: nogal con 15, vid con 11, durazno con 10, y naranjo con ocho. El estudio muestra una relación de las especies de Chrysopidae que se registran por primera vez en cada entidad por especie de frutal, así como los periodos de mayor abundancia en árboles de naranjo, nogal y vid en los estados de Coahuila, Durango, y Nuevo León; se incluyen también claves ilustradas para la identificación de los diferentes géneros y especies encontradas. El mayor índice de diversidad y abundancia de especies de Chrysopidae ocurrió en nogales del estado de Coahuila, mientras que la mayor abundancia de especies de crisopas por estados fue en las entidades de Durango, Sonora, Guanajuato y Chihuahua. Se determinó que C. sp. nr. cincta (México), con base en sus rasgos biológicos y parámetros poblacionales estimados, es factible de producir masivamente con fines de liberación comercial para el control de plagas. Para E. punctinervis, los rasgos biológicos estimados constituyen una referencia básica para contribuir a determinar el potencial de este depredador en el control biológico de plagas en el país. Los resultados poseen implicaciones para la conservación y aprovechamiento de la diversidad de especies de Chrysopidae presentes en los frutales del centro y norte del país. Abstract The family Chrysopidae (Neuroptera) has numerous arboreal species that they could be important in the biological control of pests in the diverse fruit orchards of México; however, the potential of these beneficial insects has been neglected or underestimated due to the scarce availability of taxonomic studies of the group in the country. The objectives of this study were to identify and determine the Chrysopidae species distribution, abundance, diversity and bioecology in orchard trees from central and northern Mexico, in order to contribute in the protection, conservation and use of these biological control agents in the country. Samplings of insects were performed in 10 species of orchard trees located in 13 states of Mexico, from October 2003 to December 2005. Under controlled lab conditions, life tables were developed for Ceraeochrysa sp. nr. cincta (Schneider) (Mexico) and Eremochrysa punctinervis (McLachlan). The following 18 species of Chrysopidae were identified, wich are included in six genera: Ceraeochrysa caligata (Banks), Ceraeochrysa sp. nr. cincta (México) (Schneider), Ceraeochrysa claveri (Navás), Ceraeochrysa smithi (Navás), Ceraeochrysa valida (Banks), Chrysopa nigricornis Burmeister (east), Chrysopa nigricornis Burmeister (west), Chrysopa oculata Say, Chrysopa quadripunctata Burmeister, Chrysoperla carnea s. lat. Stephens, Chrysoperla comanche Banks, Chrysoperla exotera Navás, Chrysoperla externa Hagen, Chrysoperla rufilabris Burmeister Eremochrysa punctinervis Banks, Meleoma arizonensis (Banks), Meleoma colhuaca Banks (Subfamily Chrysopinae: Tribe Chrysopini) and Leucochrysa (Nodita) sp. Navás (Subfamily Chrysopinae: Tribe Leucochrysini). The most abundant and distributed species were Chrysoperla comanche (Banks), C. sp. nr. cincta (Mexico) and Ceraeochrysa valida (Banks). The highest abundance of Chrysopidae species in orchard trees was in pecan trees with 15 species, followed by grape, peach, and orange trees with 11, 10 and eight species, respectively. A list of the new records of Chrysopidae species by state and by orchard tree species is shown; as well as the periods with highest abundance of Chrysopid species in orange, pecan and grape trees from Coahuila, Durango, and Nuevo Leon states. Illustrated keys for identification of genera and species were generated. The highest index of diversity and abundance of Chrysopidae species were determined in pecan trees from Coahuila state, while the highest abundance of lacewings was in Durango, Sonora, Guanajuato and Chihuahua states. Supported on C. sp. nr. cincta (Mexico) biological traits and population parameters, it is possible to suggest this species for mass-rearing and extensive field liberation programs. The biological traits estimated for E. punctinervis constitute basic and useful information for the the determination of the potential of this species as a biological control agent. The results have implications for the conservation and use of the diverse species of Chrysopidae associated with fruit trees in the country

Efectos de un entrenamiento planificado y controlado en minibasket (11 y 12 años) sobre la potencia anaeróbica

El objetivo del presente trabajo ha sido evaluar los efectos que en niños tiene su participación en el programa de entrenamiento deportivo diseñado y controlado en minibasket mediante el Indice de Korcek (GE, N = 12), sobre la potencia anaeróbica en comparación con un grupo de entrenamiento no planificado (GC, N = 12). El control del programa se realizó registrando la frecuencia cardíaca mediante Sport Tester en las sesiones de entrenamiento y ajustando la carga del mismo según el Indice de Korcek a los microciclos establecidos en la planificación anual. El programa de entrenamiento se realizó a lo largo de 7 meses, con recogidas de datos en dos momentos diferentes (primer y séptimo mes). La valoración de la potencia anaeróbica se estimó mediante la realización del test de Wingate en cicloergómetro. Se controlaron las variables de edad cronológica y biológica, peso, talla, dos perímetros musculares, dos diámetros óseos y tres pliegues cutáneos, valorándose todas ellas siguiendo las normas establecidas por el IWGK y GREC. Los resultados muestran mejoras de la potencia anaeróbica en el GE. Los componentes del GE presentan mejoras significativas en la resistencia anaeróbica con respecto al GC, ‘mejorando sustancialmente el Indice de fatiga

Biomimetic Mineralization Promotes Viability and Differentiation of Human Mesenchymal Stem Cells in a Perfusion Bioreactor

In bone tissue engineering, the design of 3D systems capable of recreating composition, architecture and micromechanical environment of the native extracellular matrix (ECM) is still a challenge. While perfusion bioreactors have been proposed as potential tool to apply biomechanical stimuli, its use has been limited to a low number of biomaterials. In this work, we propose the culture of human mesenchymal stem cells (hMSC) in biomimetic mineralized recombinant collagen scaffolds with a perfusion bioreactor to simultaneously provide biochemical and biophysical cues guiding stem cell fate. The scaffolds were fabricated by mineralization of recombinant collagen in the presence of magnesium (RCP.MgAp). The organic matrix was homogeneously mineralized with apatite nanocrystals, similar in composition to those found in bone. X-Ray microtomography images revealed isotropic porous structure with optimum porosity for cell ingrowth. In fact, an optimal cell repopulation through the entire scaffolds was obtained after 1 day of dynamic seeding in the bioreactor. Remarkably, RCP.MgAp scaffolds exhibited higher cell viability and a clear trend of up-regulation of osteogenic genes than control (non-mineralized) scaffolds. Results demonstrate the potential of the combination of biomimetic mineralization of recombinant collagen in presence of magnesium and dynamic culture of hMSC as a promising strategy to closely mimic bone ECM.EU Marie Curie Project "Bio-Inspired Bone Regeneration" 607051Spanish Ministry of Science, Innovation and Universities (MCIU) RYC-2016-21042 RTI-2018-095794A-C22Interdisciplinary Center for Clinical Research (IZKF) at the University ofWuerzburg D-361MCI

On the amorphous layer in bone mineral and biomimetic apatite: A combined small- and wide-angle X-ray scattering analysis

The occurrence of an amorphous calcium phosphate layer covering the crystalline apatite core has been suggested to be an intrinsic feature of both bone mineral and synthetic biomimetic analogs. However, an exahustive quantitative picture of the amorphous-crystalline relationship in these materials is still miss- ing. Here, we present a multiple scale modelling that combines small-angle X-ray scattering (SAXS) and synchrotron wide-angle X-ray total scattering (WAXTS) analyses to investigate the amorphous-crystalline spatial interplay in bone sample and biomimetic carbonated nano-apatites. SAXS analysis indicates the presence of a single morphology consisting of tiny nanoplates (NPLs) and provides a measure of their thickness (falling in the 3–5 nm range). WAXTS analysis was performed by developing atomistic models of apatite NPLs incorporating lattice strain, mostly attributed to the carbonate content, and calculating the X-ray patterns using the Debye Scattering Equation. Upon model optimization, the size and strain parameters of the crystalline platelets were derived and the amorphous component, co-existing with the crystalline one, separated and quantified (in the 23–33 wt% range). Notably, the thickness of the ap- atite core was found to exhibit nearly null (bone) or minor ( < 0.5 nm, biomimetic samples) deviations from that of the entire NPLs, suggesting that the amorphous material remains predominantly distributed along the lateral sides of the NPLs, in a core-crown-like arrangement. The lattice strain analysis indicates a significant stiffness along the c axis, which is comparable in bone and synthetic samples, and larger deformations in the other directions. Statement of Significance Current models of bone mineral and biomimetic nanoapatites suggest the occurrence of an amorphous layer covering the apatitic crystalline nanoplates in a core-shell arrangement. By combining X-ray scatter- ing techniques in the small and wide angle regions, we propose a joint atomic-to-nanometre scale mod- elling to investigate the amorphous-crystalline interplay within the nanoplates. Estimates are extracted for the thickness of the entire nanoplates and the crystalline core, together with the quantification of the amorphous fraction and apatite lattice strain. Based on the thickness matching, the location of the amorphous material mostly along the edges of the nanoplates is inferred, with a vanishing or very thin layer in the thickness direction, suggesting a core-crown-like arrangement, with possible implications on the mineral surface reactivity.Fondazione Cariplo 2016-0648FEDER/Ministerio de Ciencia, Innovación y Universidades-Agencia Estatal de Investigación (FEDER/MCIU/AEI) RYC-2016-21042 RTI-2018-095794-A-C22FEDER/MCIU/AEI JdC-201

Bioinspired mineralization of engineered living materials to promote osteogenic differentiation

In this work, Engineered Living Materials (ELMs), based on the combination of genetically-modified bacteria and mineral-reinforced organic matrices, and endowed with self-healing or regenerative properties and adaptation to specific biological environments were developed. Concretely, we produced ELMs combining human mesenchymal stem cells (hMSCs) and Lactococcus lactis (L. lactis), which was specifically programmed to deliver bone morphogenetic protein (BMP-2) upon external stimulation using nisin, into mineralized alginate matrices. The hybrid organic/inorganic matrix was built through a protocol, inspired by bone mineralization, in which alginate (Alg) assembly and apatite (HA) mineralization occurred simultaneously driven by calcium ions. Chemical composition, structure and reologhical properties of the hybrid 3D matrices were dedicately optimized prior the incorportation of the living entities. Then, the same protocol was reproduced in the presence of hMSC and engineered L. lactis that secrete BMP-2 resulting in 3D hybrid living hydrogels. hMSC viability and osteogenic differentiation in the absence and presence of the bacteria were evaluated by live/dead and quantitative realtime polymerase chain reaction (qPCR) and immunofluorescence assays, respectively. Results demonstrate that these 3D engineered living material support osteogenic differentiation of hMSCs due to the synergistic effect between HA and the growth factors BMP-2 delivered by L. lactisEPSRC (EP/P001114/1)U.K. Regenerative Medicine Platform “Acellular/Smart Materials-3D Architecture” (MR/R015651/1)Junta de Andalucía through the collaborative project NanoFERTI (P18-TP-0969)The Spanish MCIN/AEI/10.13039/501100011033The “European Union” NextGenerationEU/PRTR (project number PDC2022-133191- I00)EMBO Scientific Exchange Grant (SEG number 9741)RYC2021-032734-IMCIN/AEI/10.13039/501100011033ESF Investing in your futur

Buenas prácticas de transferencia del conocimiento en la Universidad de Córdoba

El reto que presentan los autores del proyecto se centra en encontrar un modelo español de asignación donante-receptor en trasplantes de hígado que sea válido a un número de pares donantes-receptores. El método que proponen para ello es asociando el hígado del donante con unas determinadas características a un receptor que está en lista de espera y que sea el que tenga una mayor probabilidad de supervivencia. Para ello, los investigadores trabajan en la validación de los modelos obtenidos a partir de un sistema basado en reglas, que cuenta con modelos avanzados de redes neuronales para la alcanzar la máxima probabilidad de supervivencia del injerto a tres meses y también de no supervivencia

Fe3O4-TiO2 Thin Films in Solar Photocatalytic Processes

The optical properties of 5wt% Fe3O4-TiO2 thin films were evaluated in detail with the aim of proposing a mechanism for solar photocatalytic processes and highlighting the advantages over the use of bare TiO2. The results showed that the incorporation of 5wt% Fe3O4 enhanced the optical properties by a redshift to a wavelength in the visible range, reducing the anatase/rutile band gap energy from 3.2 eV to 2.8 eV. Photoluminescence studies reveal a superior separation efficiency of photoexcited electron-hole pairs when Fe3O4 nanoparticles (NPs) are present in the photocatalyst. X-ray photoelectron spectroscopy spectra confirm the presence of Fe3O4 and existence of a chemical bonding between TiO2 and Fe3O4 NPs. Moreover, in this study, a mechanism of solar photocatalytic processes involving Fe3O4-TiO2 thin films is proposed and it is supported by experimental results. Finally, solar photocatalytic experiments were carried out, indicating that the effectiveness for the removal of the selected pharmaceutical is considerably improved when the composite material is used as catalyst. Furthermore, it was demonstrated that the photocatalytic activity of the prepared Fe3O4-TiO2 thin films depends on their thickness, achieving the highest pharmaceutical removal yields using the 2 mu m thick sample. The stability and reusability of the catalyst was confirmed studying the photocatalytic activity over three cycles

Estimating building construction costs by production processes

Building actors need accurate estimates in order to efficiently undertake the construction of buildings. The knowledge of real expected costs of construction works is a necessary condition for contractors to submit competitive tenders and for developers to be aware of the magnitude of their investment. In this paper, an innovative process-based model is presented, the POP model. This model aims at providing building actors with a systematized methodology to calculate building construction costs based on the planning, organization and scheduling of the expected works. Unlike the model of construction work units, the most widespread estimate model in Spain, the POP model comprises all construction costs in a direct way by identifying the production processes involved and the resources consumed, giving a new approach to the principles of the activity-based costing methodology in tune with the process-based cost models that are emerging in the international scene. Nowadays, the model is being applied in real construction works with satisfactory results of transparency, detail and adaptability. Not only reliable estimates are obtained, but also the performance of works is devised, allowing its optimization and control

Revisión sistemática del uso de los diferentes protocolos de interconexión para internet de las cosas (IoT)

Trabajo de investigaciónEl presente documento presenta una revisión sistemática acerca del uso de los diferentes protocolos de interconexión que son más destacados e interoperables para lograr la implementación de internet de las cosas (IoT) dentro de entornos empresariales y el hogar. Para la elaboración de este trabajo se implementó una metodología especializada en revisiones sistemáticas llamada metodología de Bárbara Kitchenham, desarrollada en 2004 por la autora del mismo nombre. Adicionalmente se utilizó un software especial para este tipo de trabajos llamado Start, con el que se ha extraído la información de las bases de datos IEEE y SCOPUS que nos dio como resultado un número de artículos científicos seleccionados minuciosamente bajo unos criterios de elegibilidad y calidad definidos dentro del desarrollo de la metodología.INTRODUCCIÓN JUSTIFICACIÓN 1. PLANTEAMIENTO DEL PROBLEMA 2. OBJETIVOS 3. ALCANCES Y LIMITACIONES 4. MARCO TEÓRICO 5. ESTADO DEL ARTE 6. METODOLOGÍA 7. RESULTADOS CONCLUSIONES RECOMENDACIONES REFERENCIASPregradoIngeniero de Sistema