Una propuesta para la medición del engagement en Facebook

El presente trabajo de investigación consiste en un estudio sobre el marketing en Redes Sociales y el engagement del consumidor. En él conoceremos de forma más precisa el concepto de Redes Sociales (RRSS) y su evolución en los últimos años, para seguidamente detallar las principales ventajas que aportan dichas redes en las estrategias de marketing. Posteriormente se analizará el concepto de engagement tanto desde una perspectiva teórica como práctica. El principal objeto de estudio, es proponer una nueva fórmula para la medición del engagement en Facebook. Nuestra propuesta presenta dos grandes diferencias en relación a la de Facebook (hasta el momento la única fórmula existente): le otorgamos una ponderación diferente a cada acción (“me gusta”, comentar o compartir) y el engagement global se divide en dos tipos de engagement: la relevancia y el alcance. Para comprobar la utilidad de la fórmula, primero se analizaron una serie de páginas en Facebook para posteriormente medir el engagement. Estas páginas pertenecientes a dos sectores muy diferentes entre sí, siendo un sector utilitario como el bancario y un sector hedónico como el futbolístico. Como conclusión, podríamos decir que el engagement relacionado con las RRSS es todo un mundo por descubrir, en el que nosotros hemos investigado, pero que debido al escaso tiempo del que hemos dispuesto no hemos podido profundizar lo suficiente. Podemos afirmar, que las RRSS son una excelente inversión en marketing ya que generan lazos emocionales con el consumidor aproximándole la marca de una manera más estrecha y positiva

Strained SrMnO3 thin films: engineering multiferroic properties

Resumen del trabajo presentado al "European Congress and Exhibition on Advanced Materials Processes" celebrado en Sevilla (España) del 8 al 13 de septiembre de 2013.-- et al.Multiferroic materials showing simultaneous magnetic and ferroelectric ordering have become the subject of intensive research in recent years. The scarcity of these materials due to the different phenomena responsible for both properties [1], and also, the weak magnetoelectric coupling in most of them force to develop new methods to avoid the excluding mechanisms of ferroelectricity and magnetism. Recent theoretical predictions suggested that epitaxially strained SrMnO3 should become multiferroic [2] by means of the interplay of spins, lattice phonons and strain of the perovskite unit cell. In this system, Mn4+ (d3 ion) is expected to drive both the magnetic order (Mn-O-Mn magnetic superexchange interaction) and the required non-centrosymmetric distortion for ferroelectric order (Mn4+ off-centers from MnO6 octahedra), and therefore a strong magnetoelectric coupling with similar ordering temperatures is expected. Here, we have investigated the effect of epitaxial strain on the structure, electrical and magnetic properties of SrMnO3 (SMO) thin films. Pulsed laser deposition technique was used to grow strained SMO thin films onto different substrates ranging from -1% compressive to 4% tensile mismatch. Coherent cube-on-cube growth is borne out by X-ray diffraction measurements, which also show that under appropriate deposition conditions and substrate selection the perovskite pseudo-cubic phase is stabilized in thin films. The growth of the samples has been monitored by in situ RHEED measurements. Selected films were observed by scanning transmission electron microscopy, which prove the homogeneity and defect-free crystal quality of films. Chemical composition mapping, stoichiometry and 4+ oxidation state of Mn were corroborated by electron energy loss spectroscopy. Nonlinear optics measurements reveal that SMO films, under epitaxial stress, emitt optical second harmonic generation signal, pointing to inversion symmetry being broken (necessary condition for ferroelectricity). Electric measurements were carried out to further investigate the ferroelectric nature of SMO films, thus assessing the possibility of non-d0 cations off-centring.Peer Reviewe

Workshop Eurmaroc 2012

[Castellà] Workshop Eurmaroc 2012 es un taller interuniversitario de arquitectura y patrimonio desarrollado en dos fases: estancia en Valle del Draa (Marruecos) durante 15 días (septiembre 2012) y posterior elaboración de 3 proyectos territoriales, urbanísticos y arquitectónicos de intervención, participando estudiantes y profesores de las escuelas de Arquitectura y Edificación de las Universidades de Granada, Politécnica de Cataluña y Alicante. [English] Workshop Eurmaroc 2012 is a multi university workshop about architecture and construction, which has been developed in two phases: at Draa River (Morocco) during 15 days (September 2012) and three projects about territory, urban and architecture. Students and professors belonging the Schools of Architecture and Building at University of Granada, Politècnica of Catalonia and Alicante have participatedPostprint (published version

Satisfacción de los pacientes con la comunicación en las consultas de medicina de familia: comparación de tres métodos para investigar necesidades no satisfechas.

Diferentes aspectos de la relación medico-paciente se han asociado con la satisfacción y otros resultados de la consulta, pero el “efecto techo” suele limitar estas mediciones. El objetivo del trabajo es evaluar la relación y las diferencias entre tres modos de obtención de información referentes a la satisfacción del paciente y la percepción de necesidades no cubiertas en aspectos comunicativos con el médico.post-print240 K

Spanish cardiac catheterization in congenital heart diseases registry. First official report from the ACI-SEC and the GTH-SECPCC (2020)

Introduction and objectives: The Interventional Cardiology Association of the Spanish Society of Cardiology (ACI-SEC) and the Spanish Society of Pediatric Cardiology Working Group on Interventional Cardiology (GTH-SECPCC) introduce their annual activity report for 2020, the starting year of the pandemic of coronavirus disease (COVID-19). Methods: All Spanish centers with cath labs and interventional activity in congenital heart diseases were invited to participate. Data were collected online, and analyzed by an external company together with members from the ACI-SEC and the GTH-SECPCC. Results: A total of 16 centers participated (all of them public) including 30 cath labs experienced in the management of congenital heart diseases, 7 of them (23.3%) dedicated exclusively to pediatric patients. A total of 1046 diagnostic studies, and 1468 interventional cardiac catheterizations were registered. The interventional procedures were considered successful in 93.4% of the cases with rates of major procedural complications and mortality of 2%, and 0.1%, respectively. The most frequent procedures were atrial septal defect closure (377 cases), pulmonary angioplasty (244 cases), and the percutaneous closure of the patent ductus arteriosus (199 cases). Conclusions: This report is the first publication from the Spanish Cardiac Catheterization in Congenital Heart Diseases Registry. The data recorded are conditioned by the COVID-19 pandemic. Diagnostic cardiac catheterization still plays a key role in this field. Most interventional techniques have reported excellent security and efficacy rates

Complicaciones infecciosas relacionadas con la asistencia circulatoria mecánica de corta duración en candidatos a trasplante cardiaco urgente

[Abstract] Introduction and objectives. Short-term mechanical circulatory support is frequently used as a bridge to heart transplant in Spain. The epidemiology and prognostic impact of infectious complications in these patients are unknown. Methods. Systematic description of the epidemiology of infectious complications and analysis of their prognostic impact in a multicenter, retrospective registry of patients treated with short-term mechanical devices as a bridge to urgent heart transplant from 2010 to 2015 in 16 Spanish hospitals. Results. We studied 249 patients, of which 87 (34.9%) had a total of 102 infections. The most frequent site was the respiratory tract (n = 47; 46.1%). Microbiological confirmation was obtained in 78 (76.5%) episodes, with a total of 100 causative agents, showing a predominance of gram-negative bacteria (n = 58, 58%). Compared with patients without infection, those with infectious complications showed higher mortality during the support period (25.3% vs 12.3%, P = .009) and a lower probability of receiving a transplant (73.6% vs 85.2%, P = .025). In-hospital posttransplant mortality was similar in the 2 groups (with infection: 28.3%; without infection: 23.4%; P = .471). Conclusions. Patients supported with temporary devices as a bridge to heart transplant are exposed to a high risk of infectious complications, which are associated with higher mortality during the organ waiting period.[Resumen] Introducción y objetivos. El uso de dispositivos de asistencia circulatoria mecánica de corta duración como puente a trasplante es frecuente en España. Se desconocen la epidemiología y la repercusión de las complicaciones infecciosas en estos pacientes. Métodos. Descripción sistemática de la epidemiología y análisis de la repercusión pronóstica de las complicaciones infecciosas en un registro multicéntrico retrospectivo de pacientes tratados con dispositivos de asistencia circulatoria mecánica de corta duración como puente a trasplante cardiaco urgente entre 2010 y 2015 en 16 hospitales españoles. Resultados. Se estudió a 249 pacientes; 87 (34,9%) de ellos tuvieron un total de 102 infecciones. La vía respiratoria fue la localización más frecuente (n = 47; 46,1%). En 78 casos (76,5%) se obtuvo confirmación microbiológica; se aislaron en total 100 gérmenes causales, con predominio de bacterias gramnegativas (n = 58, 58%). Los pacientes con complicaciones infecciosas presentaron mayor mortalidad durante el periodo de asistencia circulatoria mecánica (el 25,3 frente al 12,3%; p = 0,009) y menor probabilidad de recibir un trasplante (el 73,6 frente al 85,2%; p = 0,025) que los pacientes sin infección. La mortalidad posoperatoria tras el trasplante fue similar en ambos grupos (con infección, el 28,3%; sin infección, el 23,4%; p = 0,471). Conclusiones. Los pacientes tratados con dispositivos de asistencia circulatoria mecánica de corta duración como puente al trasplante cardiaco están expuestos a un alto riesgo de complicaciones infecciosas, las cuales se asocian con una mayor mortalidad en espera del órgano

Risk factors associated with moderate-to-severe renal dysfunction among heart transplant patients: results from the CAPRI study

[Abstract] The longer survival of patients with heart transplantation (HT) favors calcineurin inhibitor–related chronic kidney disease (CKD). It behoves to identify risk factors. At 14 Spanish centers, data on 1062 adult patients with HT (age 59.2 ± 12.3 yr, 82.5% men) were collected at routine follow-up examinations. Glomerular filtration rate, GFR, was estimated using the four-variable MDRD equation, and moderate-or-severe renal dysfunction (MSRD) was defined as K/DOQI stage 3 CKD or worse. Time since transplant ranged from one month to 22 yr (mean 6.7 yr). At assessment, 26.6% of patients were diabetic and 63.9% hypertensive; 53.9% were taking cyclosporine and 33.1% tacrolimus; and 61.4% had MSRD. Among patients on cyclosporine or tacrolimus at assessment, multivariate logistic regression identified male sex (OR 0.44), pre- and post-HT creatinine (2.73 and 3.13 per mg/dL), age at transplant (1.06 per yr), time since transplant (1.05 per yr), and tacrolimus (0.65) as independent positive or negative predictors of MSRD. It is concluded that female sex, pre- and one-month post-HT serum creatinine, age at transplant, time since transplant, and immunosuppression with cyclosporine rather than tacrolimus may all be risk factors for development of CKD ≥ stage 3 by patients with HT

A clinically compatible drug-screening platform based on organotypic cultures identifies vulnerabilities to prevent and treat brain metastasis

We report a medium‐throughput drug‐screening platform (METPlatform) based on organotypic cultures that allows to evaluate inhibitors against metastases growing in situ. By applying this approach to the unmet clinical need of brain metastasis, we identified several vulnerabilities. Among them, a blood–brain barrier permeable HSP90 inhibitor showed high potency against mouse and human brain metastases at clinically relevant stages of the disease, including a novel model of local relapse after neurosurgery. Furthermore, in situ proteomic analysis applied to metastases treated with the chaperone inhibitor uncovered a novel molecular program in brain metastasis, which includes biomarkers of poor prognosis and actionable mechanisms of resistance. Our work validates METPlatform as a potent resource for metastasis research integrating drug‐screening and unbiased omic approaches that is compatible with human samples. Thus, this clinically relevant strategy is aimed to personalize the management of metastatic disease in the brain and elsewhere

Brucellosis in Sub-Saharan Africa:Current challenges for management, diagnosis and control

Brucellosis is a highly contagious zoonosis caused by bacteria of the genus Brucella and affecting domestic and wild mammals. In this paper, the bacteriological and serological evidence of brucellosis in Sub-Saharan Africa (SSA) and its epidemiological characteristics are discussed. The tools available for the diagnosis and treatment of human brucellosis and for the diagnosis and control of animal brucellosis and their applicability in the context of SSA are presented and gaps identified. These gaps concern mostly the need for simpler and more affordable antimicrobial treatments against human brucellosis, the development of a B. melitensis vaccine that could circumvent the drawbacks of the currently available Rev 1 vaccine, and the investigation of serological diagnostic tests for camel brucellosis and wildlife. Strategies for the implementation of animal vaccination are also discussed.Publishe