161 research outputs found
Hermitian clifford analysis
This paper gives an overview of some basic results on Hermitian Clifford analysis, a refinement of classical Clifford analysis dealing with functions in the kernel of two mutually adjoint Dirac operators invariant under the action of the unitary group. The set of these functions, called Hermitian monogenic, contains the set of holomorphic functions in several complex variables. The paper discusses, among other results, the Fischer decomposition, the Cauchy–Kovalevskaya extension problem, the axiomatic radial algebra, and also some algebraic analysis of the system associated with Hermitian monogenic functions. While the Cauchy–Kovalevskaya extension problem can be carried out for the Hermitian monogenic system, this system imposes severe constraints on the initial Cauchy data. There exists a subsystem of the Hermitian monogenic system in which these constraints can be avoided. This subsystem, called submonogenic system, will also be discussed in the paper
Prototipo funcional de un servicio e-Health para monitorear, transmitir y almacenar el estado de la presión arterial de pacientes crónicos-hipertensos
Auxiliar de InvestigaciónEn la siguiente proyecto de grado se desarrolla un prototipo funcional para el monitoreo de pacientes crónicos hipertensos con visualización remota. inicialmente mediante un proceso de ingeniería inversa, se realiza la adaptación de un tensiometro comercial para obtener los datos tomados por este, los datos son enviados vía bluetooth a una tarjeta de desarrollo para ser procesados y por medio de una shield M95 de quectel, se realiza el envío de mensajes de alerta y el envío de estos datos a una base de datos creada en ThingSpeak, para luego en el front de una pagina web desarrollada en el entorno de Azure se puedan visualizar los datos de cada paciente.INTRODUCCIÓN
1. GENERALIDADES
2. DESCRIPCION DE COMPONENTES
3. IMPLEMENTACION
4. PRUEBAS DE FUNCIONAMIENTO
5. VALIDACIÓN DEL DISPOSITIVO
6. DESCRIPCIÓN ECONOMICA DEL PROYECTO
7. CONCLUCIONES
8. TRABAJOS FUTUROS
BIBLIOGRAFÍA
ANEXOSPregradoIngeniero Electrónic
On the aggregate effects of inmigration in Spain
Incluye bibliografíaThis paper presents a dynamic general equilibrium model designed to compute the aggregate impact of immigration, accounting for relevant supply and demand effects. We calibrate the model to the Spanish economy, allowing for enough heterogeneity in the demographic characteristics of immigrant and native workers. We consider an initial steady state characterized by the age structure of the Spanish population in 1995 and study the effects of several immigration scenarios on several macroeconomic variables (GDP, employment, productivity, etc.
Fiscal policy, structural reforms and external imbalances : a quantitative evaluation for Spain
Este artículo considera un modelo de generaciones solapadas, aplicado a una economía pequeña, abierta al comercio internacional y caracterizada por la existencia de competencia imperfecta en los mercados de bienes y de trabajo, para analizar: i) cuáles fueron los principales determinantes de la expansión observada en la economía española desde mediados de los 1990s hasta la llegada de la crisis financiera global en 2007-2008, ii) qué papel podrían haber jugado la política fiscal y las reformas estructurales en la reducción del desequilibrio externo acumulado durante este periodo, y iii) cómo estas políticas podrían influir en el proceso de recuperación de la actividad económica en España después de la crisis. Los resultados apuntan a que la caída en los tipos de interés y los cambios demográficos fueron los principales factores que impulsaron la última etapa expansiva en España. En cuanto al comportamiento macroeconómico de la economía española después de la crisis, los resultados sugieren que un adelanto en el proceso de consolidación fiscal, junto con la introducción de reformas estructurales que reduzcan las distorsiones existentes en los mercados de bienes y de trabajo, contribuirían a que la recuperación de la actividad fuera más exitos
Folate transport by prawn hepatopancreas brush-border membrane vesicles.
The transport system of folic acid (Pte-Glu) b y brush-borde r membrane vesicles (BBMV ) isolated from prawn (Penaeus japonicm) hepatopancreas , was studied by measuring the uptake of Pte-Glu . This uptake was found to have two components , intravesicular transport and membrane binding . Membrane binding was not affected by the presence of a trans - membrane pH-gradient at a short incubation period . However , a transmembrane pH - gradient increased membrane binding at 6 0 min. The transpor to f Pte-Glu appeared to be carrier-mediated , was stimulated by an inwardly proton gradient (p H 5. 5 outside , 7. 4 inside ) and was unaffected by a sodium-gradient . The relationship between pH gradient-driven Pte-Glu uptake and medium Pte-Glu concentration followed saturating Michaelis-Menten kinetics . Eadie-Hofste e representation of the pH gradient-driven Pte-Glu uptake indicated a single transport system with a Km of 0.3 7 ^ Man d Vmax of 1.06pmol/mg protein/15s . These findings indicate that BBM V isolated from prawn hepatopancreas possesses a Pte - Glu transport system similar to that described in mammalian intestine
Influencia del riego deficitario controlado precosecha sobre la calidad de la cereza ´Prime Giant`
El uso de redes de sensores para el manejo del riego deficitario controlado (RDC) en
cerezo puede incidir en la mejora de la productividad del agua, calidad de la fruta y en su
comportamiento poscosecha, al permitir el conocimiento y control del estado hídrico del
suelo y árbol en todo momento.
En el primer año de ensayo, el riego deficitario aplicado en precosecha para
satisfacer el 85% de las necesidades máximas del cultivo (ETcg) permitió un ahorro de agua
del 17% (380 m3 ha-1) respecto al tratamiento control, que se regó al 110% de la ETcg. Este
déficit hídrico ligero no afectó a la producción (16,13 t ha-1) e incluso mejoró la calidad del
fruto. Así, en el momento de la cosecha (t0) los frutos bajo déficit ligero presentaron matices
más rojos y mayor acidez que los de riego completo. Esta mayor acidez no afectó al índice
de madurez debido a la compensación por sólidos solubles totales (SST). El carácter de
mayor acidez perduró tras 30 días de conservación en frio (t1) y 5 días de simulación de las
condiciones de comercialización (t2). Igualmente, los frutos bajo déficit hídrico presentaron
una tendencia a menores pérdidas de peso por deshidratación a finales de los periodos de
conservación en frio y de simulación de la comercialización.Ministerio de Economía y Competitividad AGL2013-49047-C2-1
Skin picking treatment with the Rothbaum cognitive behavioral therapy protocol : a randomized clinical trial
Introduction: Although behavioral therapies can effectively treat skin picking disorder (SPD), there is no standardized treatment for improving SPD and its comorbidities and there is no group intervention option. This trial aimed to adapt the Rothbaum trichotillomania protocol to SPD (Study 1) and test its efficacy for treating SPD and comorbidities in individual and group formats (Study 2). Methods: The adapted protocol was applied to 16 SPD patients, who were allocated to group or individual treatment (Study 1). Afterwards, 54 patients were randomly allocated to treatment in an individual (n=27) or group format (n=27) (Study 2). In both studies, assessments of SPD severity, anxiety, depression, clinical status and skin lesion severity were performed at baseline and the endpoint. Results: The adapted protocol was feasible in both treatment modalities (Study 1) and led to high SPD remission rates (individual 63%; group 52%), with no significant difference between intervention types (p = 0.4) (Study 2). SPD, anxiety, and depression symptoms and objective patient lesion measures improved after treatment. There was large effect size for SPD symptom improvement in both treatment types (Cohen’s d: group = 0.88; individual = 1.15) (Study 2). Conclusion: The adapted Rothbaum protocol was effective for SPD remission, comorbidities, and skin lesions, both in individual and group formats
On the Lebesgue measure of Li-Yorke pairs for interval maps
We investigate the prevalence of Li-Yorke pairs for and
multimodal maps with non-flat critical points. We show that every
measurable scrambled set has zero Lebesgue measure and that all strongly
wandering sets have zero Lebesgue measure, as does the set of pairs of
asymptotic (but not asymptotically periodic) points.
If is topologically mixing and has no Cantor attractor, then typical
(w.r.t. two-dimensional Lebesgue measure) pairs are Li-Yorke; if additionally
admits an absolutely continuous invariant probability measure (acip), then
typical pairs have a dense orbit for . These results make use of
so-called nice neighborhoods of the critical set of general multimodal maps,
and hence uniformly expanding Markov induced maps, the existence of either is
proved in this paper as well.
For the setting where has a Cantor attractor, we present a trichotomy
explaining when the set of Li-Yorke pairs and distal pairs have positive
two-dimensional Lebesgue measure.Comment: 41 pages, 3 figure
Design of a Customized Neck Orthosis for FDM Manufacturing with a New Sustainable Bio-composite
The interest in developing customized external orthopaedic devices,
thanks to the advent of Additive Manufacturing (AM), has grown in recent
years. Greater attention was focused on upper limb casts, while applications to
other body’s parts, such as the neck, were less investigated. In this paper the
computer aided design (CAD) modelling, assessment and 3D printing with
fused deposition modelling (FDM) of a customized neck orthosis are reported.
The modelling, based on anatomic data of a volunteer subject, was aimed to
obtain a lightweight, ventilated, hygienic and comfortable orthosis compared to
the produced medical devices generally used for neck injuries. CAD models
with different geometrical patterns, introduced for lightening and improving
breathability, were considered, specifically, a honeycomb pattern and an elliptical
holes pattern. These models were structurally assessed by means of finite
elements analysis (FEA). Furthermore, an innovative composite material was
considered for 3D printing. The material, Hemp Bio-Plastic® (HBP), composed
by polylactic acid (PLA) and hemp shives, offers different advantages including
lightweight, improved superficial finish and antibacterial properties. The results
obtained in terms of design methodology and manufacturing by 3D printing of a
prototype have shown the feasibility to develop customized cervical orthoses,
with potentially improved performance with respect to cervical collars available
on the market also thanks to the use of the innovative composite material
Online correlates of cyberhate involvement among young people from ten European countries: an application of the routine activity and problem behaviour theory
Recent evidence shows that young people across Europe are encountering hateful content on the Internet. However, there is a lack of empirically tested theories and investigation of correlates that could help to understand young people’s involvement in cyberhate. To fill this gap, the present study aims to test the Routine Activity Theory to explain cyberhate victimisation and the Problem Behaviour Theory to understand cyberhate perpetration. Participants were 5433 young people (M age =14.12, SD age =1.38; 49.8% boys from ten countries of the EU Kids Online IV survey). Self-report questionnaires were administered to assess cyberhate involvement, experiences of data misuse, frequency of contact with unknown people online, problematic aspects of sharenting, excessive Internet use, and sensation seeking. Results showed that being a victim of cyberhate was positively associated with target suitability (e.g., experiences of data misuse, and contact with unknown people), lack of capable guardianship (e.g., problematic facets of sharenting), and exposure to potential offenders (e.g., witnessing cyberhate, and excessive Internet use). Findings support the general usefulness of using Routine Activity Theory to explain cyberhate victimisation. Being a perpetrator of cyberhate was positively associated with several online problem behaviours (e.g., having contact with unknown people online, excessive Internet use, and sensation seeking), which supports the general assumption of the Problem Behaviour Theory. The findings of this research can be used to develop intervention and prevention programmes on a local, national, and international level
- …