Modelocking of a Frequency Shifted Feedback Laser triggered by Amplitude Modulation

We report an experimental technique to trigger modelocking (ML) emission in Frequency-Shifted Feedback (FSF) lasers. These lasers feature an intracavity modulator driven by a radio-frequency tone, which shifts the light spectrum every cavity roundtrip. The technique consists of the drive of the modulator with a second tone at the cavity free spectral range (FSR) frequency. So, in addition to the frequency shift, a weak amplitude modulation (AM) appears synchronous with the cavity roundtrip time. The approach is successful as FSF cavities support chirped modes evenly spaced by the FSR, whose AM coupling produces convenient seed pulses for the ML onset. This results in ML emission at arbitrary frequency shifts and initiation thresholds lower than in standard, spontaneous FSF laser ML. Simulations indicate that the role of AM is to trigger the formation of ML pulses, but the primary mechanism of pulse buildup is Kerr effect. The technique opens a new practical route to initiate ML emission in FSF laser

Health-related quality of life in nonvalvular atrial fbrillation patients with controlled or uncontrolled anticoagulation status

Background: There is a dearth of evidence regarding Health-Related Quality of Life (HRQoL) in nonvalvular atrial fibrillation (NVAF) patients undergoing oral anticoagulation therapy. Our objective was to describe HRQoL in NVAF patients on oral anticoagulation, focusing on uncontrolled patients on vitamin K antagonists (VKAs) versus controlled patients on VKAs or non-vitamin K antagonist oral anticoagulants (NOACs), in a real-world setting. Additionally, we assessed the clinical characteristics of patients with uncontrolled anticoagulation. Methods: An observational, multicentre, and cross-sectional study, enrolling 38 Spanish Hospitals' Internal Medicine Departments. HRQoL was assessed using the validated Spanish version of the Sawicki questionnaire. High self-perceived HRQoL was indicated by high scores in the general treatment satisfaction and self-efficacy dimensions, and by low scores in the strained social network, daily hassles and distress dimensions. Results: Five hundred and one patients were included for assessment. Mean scores ± SD were closer to a high perceived HRQoL in controlled than uncontrolled patients for the five dimensions of the questionnaire: 4.9 ± 1.0 versus 3.6 ± 1.3 for general treatment satisfaction; 4.3 ± 1.0 versus 3.6 ± 1.0 for self-efficacy, 3.1 ± 0.9 versus 3.9 ± 1.1 for strained social network, 2.1 ± 0.8 versus 3.0 ± 1.0 for daily hassles and 1.8 ± 0.9 versus 2.6 ± 1.2 for distress. Conclusions: HRQoL in patients with controlled anticoagulant status treated with NOACs or VKAs was better than in patients with uncontrolled anticoagulant status. This seems to indicate that anticoagulation control status influences perception of HRQoL, highlighting the importance of its evaluation when assessing HRQoL in NVAF patients

Fibroblasts and osteoblasts behavior after contact with different titanium surfaces used as implant abutment: An in vitro experimental study

Background: The goal of this in vitro study was to compare three different surfaces: two types of implant surfaces commercially available ([a] smooth/machined and [b] acid-treated surface) versus (c) anodized surface. Discs were manufactured with commercially pure titanium (CP) grade IV, which were subsequently analyzed by scanning microscopy and fibroblastic and osteoblastic cell cultures. Methods: Ninety-nine discs (5 ×2 mm) were manufactured in titanium grade IV and received different surface treatments: (i) Mach group: machined; (ii) AA group: double acid etch; and (iii) AN group: anodizing treatment. Three discs from each group were analyzed by Scanning Electron Microscopy (SEM) to obtain surface topography images and qualitatively analyzed by EDS. Balb/c 3T3 fibroblasts and pre-osteoblastic cells (MC3T3-E1 lineage) were used to investigate each group’s biological response (n =10/cellular type). The data were compared statistically using the ANOVA one-way test, considered as a statistically significant difference p Mach >AN). There was similar behavior for cell adhesion for the test groups (Mach and AN), with greater adhesion of Balb/c 3T3 fibroblast

SERIE_RE-MATERIALIZAR (Materiales, técnicas y procedimientos)

SERIE DE CREACIÓN ARTÍSTICA: RE-MATERIALIZAR. Materiales, técnicas y procedimientos. Serie de creación artística cuyos procesos de investigación están basados en la adquisición del conocimiento mediante el análisis de la realidad, la deconstrucción transversal de esa realidad analizada, y la generación y presentación de resultados a través de esta acción de nuevos espacios de reflexión y/o reivindicación, en nuestro caso artísticos. Esta visión de la investigación en creación artística se define dentro de un modo de modelo de trabajo abierto y complejo, basado en una metodología experimental dentro de la línea de investigación dedicada a las posibilidades técnico-plásticas de los materiales, técnicas y procedimientos escultóricos hacia diferentes soluciones y recursos aplicados al campo de la creación contemporánea

The Internationalization of Spanish Public Universities

españolas está enmarcada en los cuatros ejes estratégicos de internacionalización definidos por la Secretaría General de Universidades y contempla la realización de acciones específicas que no necesariamente suponen únicamente desplazamientos o movilidad presencial de docentes, estudiantes o personal de servicio y/o la firma de convenios. Las Universidades Públicas españolas han desarrollado un amplio escenario de actividades de internacionalización comunes e incluso propias de cada universidad.Los programas de ayuda y cooperación al desarrollo y voluntariado están cada vez más presentes en las memorias de las acciones realizadas en las direcciones o vicerrectorados de relaciones internacionales. Las cincuenta universidades públicas españolas desarrollan eventos y acciones de internacionalización, enfocados principalmente al Espacio Europeo, seguidos de acciones con el espacio Iberoamericano y de Estados Unidos y de forma creciente con las universidades de Asia.The internationalization of Spanish public universities is framed in the four strategic axes of internationalization defined by the General Secretariat of Universities and provides the realization of specific actions that do not necessarily imply only travel or mobility of teachers, students or service personnel and/or the signing of agreements. Spanish Public Universities have developed a broad scenario of common internationalization activities, including those specific to each university. Aid and cooperation programs for development and volunteering are increasingly present in the reports of the actions carried out by the international relations departments or vice-rectors’ offices. The fifty Spanish public universities develop internationalization events and actions, focused mainly on the European Space, followed by actions with the Ibero-American space and the United States and increasingly with the universities in Asi

Dolors Comas d'Argemir: Antropologíay género en el activismo, la academia y la vida

Este libro recoge los testimonios de catorce antropólogas pioneras de la universidad española nacidas en la primera mitad del siglo XX. En él se narran sus experiencias de vida, su acercamiento a la Antropología o los logros científicos y académicos que han alcanzado dentro de esta disciplina. Cada capítulo de esta obra está realizado por un/a investigador/a que entrevista a aquella maestra con la que tiene más afinidad académica y, a veces, un conocimiento personal de años de colaboración. Esta metodología nos permite decir que este libro es mucho más que un recopilatorio de biografías o una genealogía al uso, pues cada capítulo que lo compone está impregnado de una confidencialidad, cuando no de cierta complicidad, entre entrevistada y entrevistador/a que lo hace singular, permitiendo al lector acercarse de manera amena tanto a la vida de estas brillantes académicas, como a la historia de la Antropología del siglo XX en España desde las narrativas de sus protagonistas. Maestras de la Antropología en España. Una aproximación a través del relato de vida se ha dispuesto en dieciséis capítulos. Tras la introducción y un primer capítulo de contextualización histórica se estructuran catorce capítulos en dos partes tituladas Centro y periferia y Descentralizando el conocimiento, en los que se recogen respectivamente las narrativas de las doctoras y profesoras, Dolores Juliano - recientemente fallecida-, Teresa San Román, María Jesús Buxó, María Cátedra, Virginia Maquieira, Mercedes Fernández-Martorell, Aurora González, Teresa del Valle Murga, Pilar Sanchiz, Carmen Diez, Alida Carloni, Josepa Cucó, María de las Mercedes Cano y Dolors Coma

La Guardia Civil y el primer franquismo (1939-1959)

El presente Trabajo de Fin de Grado tiene como objetivo principal poner de manifiesto la importancia de la Guardia Civil como institución protectora del orden público y mantenimiento de la seguridad ciudadana, concretamente durante el llamado Primer Franquismo (1939-1959). No obstante, y aunque pongamos el énfasis en esos años, se llevará a cabo un análisis cronológico desde sus orígenes hasta llegar a la Guerra Civil Española. A continuación, contextualizaremos la política de Franco y su relación con esta fuerza de seguridad. De igual modo, investigaremos y trabajaremos en base a temas relacionados con la estructura propia de la Guardia Civil, la legislación, los símbolos, lemas y armas, entre otros. Terminaremos, pues, con una serie de resultados donde observaremos a ciencia cierta cómo era la relación del dictador con la Guardia Civil.The main objective of this Final Degree Project is to highlight the importance of the Civil Guard as an institution that protects public order and maintains public safety, specifically during the so-called First Franco regime (1939-1959). However, and although we put the emphasis on those years, a chronological analysis will be carried out from its origins until reaching the Spanish Civil War. Next, we will contextualize Franco’s policy and its relationship with this security force. Similarly, we will investigate and work based on issues related to the structure of the Civil Guard, legislation, symbols, slogans and weapons, among others. We will finish with a series of results where we will observe for sure how the dictator’s relationshipwith the Civil Guard

Physiological Responses During Hybrid BNCI Control of an Upper-Limb Exoskeleton

When combined with assistive robotic devices, such as wearable robotics, brain/neural-computer interfaces (BNCI) have the potential to restore the capabilities of handicapped people to carry out activities of daily living. To improve applicability of such systems, workload and stress should be reduced to a minimal level. Here, we investigated the user’s physiological reactions during the exhaustive use of the interfaces of a hybrid control interface. Eleven BNCI-naive healthy volunteers participated in the experiments. All participants sat in a comfortable chair in front of a desk and wore a whole-arm exoskeleton as well as wearable devices for monitoring physiological, electroencephalographic (EEG) and electrooculographic (EoG) signals. The experimental protocol consisted of three phases: (i) Set-up, calibration and BNCI training; (ii) Familiarization phase ; and (iii) Experimental phase during which each subject had to perform EEG and EoG tasks. After completing each task, the NASA-TLX questionnaire and self-assessment manikin (SAM) were completed by the user. We found significant differences (p-value < 0.05) in heart rate variability (HRV) and skin conductance level (SCL) between participants during the use of the two different biosignal modalities (EEG, EoG) of the BNCI. This indicates that EEG control is associated with a higher level of stress (associated with a decrease in HRV) and mental work load (associated with a higher level of SCL) when compared to EoG control. In addition, HRV and SCL modulations correlated with the subject’s workload perception and emotional responses assessed through NASA-TLX questionnaires and SAM

Influence of a football match on landing biomechanics and jump performance in female football players

This study aimed to assess the acute effect of a competitive football match on jump performance and kinematic parameters during jump landing in semiprofessional female football players. Twenty-two semiprofessional players (20 ± 3 years) underwent a drop jump task for a posterior video analysis of the landing phase. These measurements were obtained at (1) baseline, (2) after, and (3) 48 h after a competitive football match. A one-way ANOVA with repeated measures was employed to detect differences over the time. There was a main effect of time for maximal knee flexion angle during drop landing (p = 0.001). In comparison with baseline, maximal knee flexion angle was reduced immediately post-match and was still reduced 48 h after the match (63.4 ± 8.6 vs 57.0 ± 11.7 vs 48.9 ± 19.1, p ≤ 0.038). There was also a main effect of time for drop jump height (p < 0.001). Drop jump height was reduced immediately post-match and remained low 48 h after the match in comparison with baseline (27.3 ± 3.6 vs 24.5 ± 2.8 ~ 25.5 ± 3.0 cm, p ≤ 0.002). There was a main effect of time on hip flexion angle during landing (p = 0.001), but the pairwise comparison revealed that this variable was not affected immediately post-match but was lower 48 h after the match than at baseline (50.1 ± 10.1 ~ 50.8 ± 13.2 vs 38.1 ± 17.8 °, p ≤ 0.005). A competitive football match worsened jump performance and several landing biomechanical parameters in female football players, which were still decreased in comparison with baseline even 48 h after the match

Sacapuntas

Obra recogida en el catálogo perteneciente al Certamen Andaluz de Artes Plásticas 200