Lupinus mariae-josephii (Leguminosae) en la comarca de Camp de Turia (Valencia)

Se aporta para la comarca valenciana de Camp de Túria una nueva población de Lupinus mariae-josephae (Leguminosae), especie endémica de la Comunidad Valenciana (España), catalogada como Vulnerable en el Catálogo Valenciano de Especies de Flora Amenazadas. La población se localiza en el término municipal de Riba-roja de Túria y representa hasta el momento la más septentrional de su área de distribución.A new population of Lupinus mariae-josephae (Leguminosae) from Camp de Túria region is provided. This species is an endemic plant of Valencian Community (Spain) and it is listed as Vulnerable in the Valencian Catalog of Threatened Plant Species. This population is located in Riba-roja de Túria and constitutes the most northern of this species

Relationship between students' perception of a rubric for oral presentations and their academic characteristics

The use of rubrics in the evaluation of oral presentations has been associated with several benefits for students. However, it is unknown whether students with better academic marks and greater self‐regulation find the use of rubrics more useful or not. This paper aims to assess the relationship between how students perceive the use of a rubric and their academic characteristics, and to analyze the congruence between the professor's and students' evaluations when using the rubric. Eighty‐five students studying for a Degree in Sport Sciences participated in this study. A rubric for oral presentations was used to assess the students' performance. The students then filled out a questionnaire about their perception of the validity of the rubric, an assessment of academic performance, and a self‐regulation questionnaire. Inverse correlations were observed between the academic record and two items of the rubric validity perception (r 0.22). There was very good congruence between the professor's and students' marks when using the rubric (ICC = 0.78). The results suggest that the rubric used is a good instrument to ensure fair and consistent evaluations, despite possible differences between evaluators

Influences of the solid load on the microstructure and compressive behavior of Fe2O3 scaffolds manufactured by freeze-casting using stearic acid as dispersant agent

Porous materials manufactured by freeze-casting are demonstrating potential application as oxygen carriers for the production and purification of hydrogen, or anode material for lithium-ion batteries. However, to obtain the required pore morphology and sufficient mechanical strength, the suspension processing parameters must be controlled. Fe2O3 nanoparticles/camphene suspensions were fabricated using stearic acid as the dispersant agent showing a low-viscosity (130 mPa⋅s) with a high solid volume fraction (0.3). Suspensions show a shear-thinning behavior according to the Sisko model and a maximum packing fraction of 0.569 estimated from a zero porosity sample. A modified Krieger and Dougherty model was introduced to incorporate the influence of the particleaspect ratio. The Fe2O3 scaffolds manufactured by freeze-casting shown a gradient pore size along the freezing direction, which was diminished with the solid volume fraction, the compression strength was improved with the pore size reduction and fitted according to the minimum solid area model.Universidad de Sevilla PIF II.2AAgencia Estatal de Investigación (AEI) MAT2016-76713-

Progressive congestion management based on packet marking and validation techniques

© 2012 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.Congestion management in multistage interconnection networks is a serious problem, which is not solved completely. In order to avoid the degradation of network performance when congestion appears, several congestion management mechanisms have been proposed. Most of these mechanisms are based on explicit congestion notification. For this purpose, switches detect congestion and depending on the applied strategy, packets are marked to warn the source hosts. In response, source hosts apply some corrective actions to adjust their packet injection rate. Although these proposals seem quite effective, they either exhibit some drawbacks or are partial solutions. Some of them introduce some penalties over the flows not responsible for congestion, whereas others can cope only with congestion situations that last for a short time. In this paper, we present an overview of the different strategies to detect and correct congestion in multistage interconnection networks, and propose a new mechanism referred to as Marking and Validation Congestion Management (MVCM), targeted to this kind of lossless networks, and based on a more refined packet marking strategy combined with a fair set of corrective actions, that makes the mechanism able to effectively manage congestion regardless of the congestion degree. Evaluation results show the effectiveness and robustness of the proposed mechanism.This work was supported by the Spanish MEC and MICINN, as well as European Commission FEDER funds, under Grants CSD2006-00046 and TIN2009-14475-C04-01.Ferrer Pérez, JL.; Baydal Cardona, ME.; Robles Martínez, A.; López Rodríguez, PJ.; Duato Marín, JF. (2012). Progressive congestion management based on packet marking and validation techniques. IEEE Transactions on Computers. 61(9):1296-1309. doi:10.1109/TC.2011.146S1296130961

Dos nuevos híbridos en el género Thymus (Lamiaceae)

Two new hybrids for the genus Thymus L.(Lamiaceae) are described; Th. ×josephi-angeli nothosubsp. occultus, nothosubsp. nov., as a result of natural crossing between Th. piperella L. and Th. vulgaris subsp. mansanetianus P.P. Ferrer & al., and Th. ×royoi, nothosp. nov., coming from the natural crossing between Th. vulgaris L. and Th. willkommii Ronniger. In addition, a lectotype of the name Thymus willkommii is designated from a specimen preserved at BC herbariu

Efficacy and safety of condylectomy with minimally invasive surgery in the treatment of interdigital corns of the lesser toes compared to conservative treatment

Background: Minimally invasive surgery (MIS) procedures cause less trauma to the patient and might improve recovery. This study aimed to determine the efficacy and safety of condylectomy with MIS to treat interdigital corns of the lesser toes. Methods: This prospective cohort study was conducted in seven podiatry centers. Patients with interdigital corns of the lesser toes, progressing for more than a year, with one or more recurrences in the last year following conservative treatments were eligible. The recruited patients were classified according to their treatment: conservative or surgical (condylectomy with MIS) and were compared. Patient satisfaction, pain, the clinical and functional status of the foot and the appearance of sequelae were assessed at 3 and 6 months after treatment. Results: At 6 months, patients in the surgical treatment group showed no pain on pressure, which significantly differed from the conservative treatment group (p < 0.001). They also improved clinical and functional status of the foot, reaching values comparable to those of the standard population. No paresthesia, joint stiffness or instability, toe malalignment, or corn transfer to a contiguous site resulted from the surgical treatment. Conclusions: Condylectomy with MIS is effective and safe to treat interdigital corns of the lesser toes

Estableciendo relatos únicos entre las asignaturas propedéuticas y la adquisición de competencias en procesos creativos

[ES] Históricamente, entre los estudiantes que llegan a la educación superior existe un alto grado de percepción negativa sobre la incidencia en la creatividad que tienen las asignaturas propedéuticas como matemáticas o física. Esta afirmación se hace más evidente entre aquellos alumnos que deciden cursar estudios donde convide la adquisición de competencias para desarrollar procesos creativos y la integración de las asignaturas de carácter técnico, lo que se traduce en la dificultad de asimilar la interrelación de ambas partes. Esta situación tiene gran incidencia en estudios superiores como Arquitectura o Ingeniería en Diseño Industrial, donde los alumnos se mueven en equilibrio entre áreas creativas como dibujo o proyectos, y otras más científicas o técnicas, como física o estructuras. Con la intención de romper este habito y promover que el alumno entienda que las asignaturas técnicas pueden llegar a formar parte del propio proceso creativo de un proyecto, se ha iniciado diversas actividades que pretenden fomentar un cambio en la percepción negativa de estas áreas. Mediante esta comunicación, se pretende mostrar una de estas actividades que ha consistido en la participación de los alumnos del primer curso de Arquitectura en un concurso internacional de diseño como actividad motivadora y que, como premisa de partida, la idea generadora del proyecto debe de basarse en un concepto matemático o físico. En definitiva, cambiar la percepción histórica y negativa de que los conceptos adquiridos en asignaturas básicas, no pueden formar parte del proceso creativo del proyecto. Históricamente, entre los estudiantes que llegan a la educación superior existe un alto grado de percepción negativa sobre la incidencia en la creatividad que tienen las asignaturas propedéuticas como matemáticas o física. Esta afirmación se hace más evidente entre aquellos alumnos que deciden cursar estudios donde convide la adquisición de competencias para desarrollar procesos creativos y la integración de las asignaturas de carácter técnico, lo que se traduce en la dificultad de asimilar la interrelación de ambas partes. Esta situación tiene gran incidencia en estudios superiores como Arquitectura o Ingeniería en Diseño Industrial, donde los alumnos se mueven en equilibrio entre áreas creativas como dibujo o proyectos, y otras más científicas o técnicas, como física o estructuras. Con la intención de romper este habito y promover que el alumno entienda que las asignaturas técnicas pueden llegar a formar parte del propio proceso creativo de un proyecto, se ha iniciado diversas actividades que pretenden fomentar un cambio en la percepción negativa de estas áreas. Mediante esta comunicación, se pretende mostrar una de estas actividades que ha consistido en la participación de los alumnos del primer curso de Arquitectura en un concurso internacional de diseño como actividad motivadora y que, como premisa de partida, la idea generadora del proyecto debe de basarse en un concepto matemático o físico. En definitiva, cambiar la percepción histórica y negativa de que los conceptos adquiridos en asignaturas básicas, no pueden formar parte del proceso creativo del proyecto.Verdejo Gimeno, P.; Hilario Pérez, L.; Ros Campos, A.; Ferrer Dasí, T. (2022). Estableciendo relatos únicos entre las asignaturas propedéuticas y la adquisición de competencias en procesos creativos. En Proceedings INNODOCT/21. International Conference on Innovation, Documentation and Education. Editorial Universitat Politècnica de València. 477-484. https://doi.org/10.4995/INN2021.2021.13389OCS47748

Notas sobre la flora alóctona valenciana de origen ornamental.

Muchos de los neófitos detectados en los últimos años, tanto en la flora española como en la valenciana, corresponden a táxones introducidos en nuestro país con fines ornamentales, consecuencia de la creciente utilización de plantas alóctonas en jardinería

Brain pyrimidine nucleotide synthesis and Alzheimer disease

Many patients suffering late-onset Alzheimer disease show a deficit in respiratory complex IV activity. The de novo pyrimidine biosynthesis pathway connects with the mitochondrial respiratory chain upstream from respiratory complex IV. We hypothesized that these patients would have decreased pyrimidine nucleotide levels. Then, different cell processes for which these compounds are essential, such as neuronal membrane generation and maintenance and synapses production, would be compromised. Using a cell model, we show that inhibiting oxidative phosphorylation function reduces neuronal differentiation. Linking these processes to pyrimidine nucleotides, uridine treatment recovers neuronal differentiation. To unmask the importance of these pathways in Alzheimer disease, we firstly confirm the existence of the de novo pyrimidine biosynthesis pathway in adult human brain. Then, we report altered mRNA levels for genes from both de novo pyrimidine biosynthesis and pyrimidine salvage pathways in brain from patients with Alzheimer disease. Thus, uridine supplementation might be used as a therapy for those Alzheimer disease patients with low respiratory complex IV activity