Influencia de la geometría en los máximos de las tensiones en ajustes por interferencia con agujeros ranurados

Memoria D. Samuel Sol rzano Barruso” (USAL, Grant FS/21-2012 and Grant 463AC06).Elastic stress distributions in interference fits match the values predicted by pressure cylinders theory only if the two joined parts have the same length. In fact, a heavy stress concentration in the radial component appears at the edges of the contact zone being more intense in the case of the hub. Many methods have been proposed for relieving the stress peaks. In order to investigate how the stress concentrations are reduced, in this paper, different stress analysis in interference fits with grooved hubs were carried out using the finite element method.The authors wish to acknowledge the financial support provided by the Spanish Institution “Memoria D. Samuel Sol rzano Barruso” (USAL, Grant FS/21-2012 and Grant 463AC06)

Utilización por cuenta propia de los Servicios de Urgencias Hospitalarias: razones que dan las personas con problemas de salud de baja complejidad para utilizar estos servicios

Objectives: The objectives of this study are: 1) To understand the reasons of non-urgent non-referred patients to use the Emergency Department (ED), 2) To understand the “urgency” and “concern” perceptions of non-urgent non-referring patients. 3) To determinate the associated factors with the use the ED for non-urgent non-referred patients. Methods: Design: Descriptive cross-sectional study. Setting: Emergency Department (ED) of “Infanta Cristina” General Hospital, Parla, Madrid, Spain. Patients: non-referred non-urgent adult patients were selected by Emergency Department Triage system in levels IV and V, on weekdays between 10:00 and 22:00 hours, from April 26 to July 30, 2010, to be surveyed using a structured face-to-face interview. Main outcome measures: sociodemographic characteristics, personal experience with the health care centre (HCC) and ED, urgency and concern of symptoms, previous health care use regarding current health problem, reasons to visit the ED, comparative evaluation of ED and HCC. Results: 73% of the patients came directly to the ED. More efficient technical services (42%), the HCC was closed in this time (35%), promptly resolution of the health problem (22%) and more accessibility (20%) were the most important reasons to come directly to ED. 27% of the patients went previously to the HCC and then they came to the ED because they did not get better with the treatment prescribed (71%) and they went to know a second opinion (39%). 70% of the patients considered that their health problem was not serious but they thought this situation had to be resolved promptly. 63% of the patients were very worried for their health problem and the same proportion considered that their family doctor could not resolve this problem. Finally, 50% considered that the ED had more technical capacity to resolve their health problem. conclusions: High efficacy and effectiveness, in terms of technical resources and promptness, were the main reasons of non-referred non-urgent adult patients to use the ED. The high preoccupation, but not the perception of seriousness perception, of the health problem was the most important factor to seek care in an active and quickly way. The previous institutional experience in HCC could influence those reasons.Objetivos: Los objetivos de este estudio son: 1) Comprender las razones y los motivos que impulsan a las personas con problemas de salud de baja complejidad (PSBC) para acudir, por cuenta propia y sin ser remitidos por su médico de cabecera (MC), al servicio de urgencias de un hospital general (SUH). 2) Conocer la percepción sobre el grado de gravedad y preocupación atribuidos por las personas a su problema de salud. 3) Determinar los factores que influyen en la decisión de acudir por cuenta propia al SUH. Metodología. Diseño: Estudio transversal a través de entrevista personal con cuestionario estructurado, mediante muestreo no probabilístico por cuotas. Contexto: SUH del Hospital Infanta Cristina de Parla, Madrid, España. Participantes: Se entrevistaron a pacientes seleccionados por los niveles IV y V de la Escala Española de Triaje, que acudieron por cuenta propia al SUH, de lunes a domingo, entre las 10:00 y las 22:00 horas, desde el 26 de abril al 30 de Julio de 2010. Principales aspectos considerados: Características socio económicas; experiencia previa con su centro de salud (CS) y con el SUH; gravedad y preocupación percibidos en relación con el problema de salud actual; utilización previa de asistencia sanitaria en relación con su problema actual de salud; razones para la utilización del SUH en relación con su problema actual de salud, evaluación comparativa entre el SUH y el CS. Resultados: Se entrevistaron a 492 pacientes de 8.558 elegibles. El 73% acudió directamente a las urgencias sin consultar al MC. El 44% consideró que el SUH contaba con mejores medios técnicos para resolver el problema de salud, el 35% porque a esa hora ya no les atendían en el CS, el 22% porque le resolvía más rápidamente el problema de salud y el 20% acudió por comodidad. El 27% restante había acudido previamente al MC y posteriormente decidió acudir a urgencias porque no mejoró con el tratamiento que le prescribió el MC (71%) y porque no estaba satisfecho con el tratamiento y quería una segunda opinión (39%). El 70% consideró que su problema de salud no era grave pero pensaba que sí era merecedor de atención urgente o rápida. El 63% expresó alta preocupación por su problema. El 63% consideró que el actual problema de salud no podía ser resuelto por su MC en caso de ser atendido en ese momento. Finalmente el 50% consideró que el SUH tenía más capacidad para resolver los problemas de salud que el CS. Conclusión: La mejor eficacia y efectividad, en términos de uso y gestión de recursos técnicos y del tiempo para resolver el problema de salud, y la comodidad, en términos de horarios, disponibilidad y accesibilidad, parecen ser las principales razones por las cuales las personas con problemas de salud de baja complejidad utilizan por cuenta propia los SUH. La preocupación, más que la gravedad, parece movilizar activamente la búsqueda de solución al problema de salud de manera rápida y urgente. Estas razones parecen estar condicionadas en la experiencia institucional previa con el CS

NEMOHIFI: An Affective HiFi Agent

This demo concerns a recently developed prototype of an emotionally-sensitive autonomous HiFi Spoken Conversa- tional Agent, called NEMOHIFI. The baseline agent was developed by the Speech Technology Group (GTH) and has recently been integrated with an emotional engine called NEMO (Need-inspired Emotional Model) to enable it to adapt to users emotion and respond to the users using ap- propriate expressive speech. NEMOHIFI controls and man- ages the HiFi audio system, and for end users, its functions equate a remote control, except that instead of clicking, the user interacts with the agent using voice. A pairwise com- parison between the baseline (non-adaptive) and NEMO- HIFI is also presented

Study, preparation and characterization of thiosemicarbazone ligands and their compounds

The 20th International Electronic Conference on Synthetic Organic Chemistry session General Organic SynthesisThiosemicarbazones are formed by the condensation of an aldehyde or ketone with a thiosemicarbazide. They have high coordinative capacity given that they have several potential donor atoms through which they can bind to transition metals. This coordinative capacity can be increased if the R1 and R2 substituents include additional donor atoms. In addition, thiosemicarbazones as well as their semicarbazones analogues have considerable biological and pharmacological interest because of their antibacterial, antiviral and antitumor activity. This communication includes the preparation and characterization of a series of thiosemicarcarbazones and their applications in the synthesis of palladium organometallic compoundsWe wish to thank the financial support received from the Xunta de Galicia (Galicia, Spain) under the Grupos de Referencia Competitiva Programme Projects GRC2015/00

Una Experiencia de iniciación al paralelismo en segundo curso del Grado de Ingeniería Informática

En este artículo se analiza una experiencia de introducción del paralelismo de forma temprana en el Grado de Ingeniería Informática. En la experiencia participan cuatro asignaturas de segundo curso, impartidas por tres departamentos distintos y con la colaboración de un centro de computación. En este curso se realiza la primera aproximación de los alumnos al paralelismo, y se pretende realizar un acercamiento coordinado y práctico a diferentes materias.SUMMARY -- This work presents an experience of early introduction to parallelism in the Degree on Computing Engineering. Four courses of the second year participate in the experience and also a computing centre. The courses are tought by three departments. In the second year the students are introduced to parallelism for the first time, and with our experience we intend to approach different topics of parallelism in a coordinated and practical way.Peer Reviewe

Pathological changes of renal biopsy in Sjögren Syndrome

We are presenting the case of a 53-year-old woman with a history of Sjögren syndrome and a secondary antiphospholipid syndrome admitted at the Nephrology department for the evaluation of renal failure. The patient was initially diagnosed with tubulointerstitial nephritis and subsequently a membranoproliferative type I glomerulonephritis, secondary to cryoglobulins during the course of the disease. Repeated renal biopsies were required to confirm the diagnosis

Functionalized thiosemicarbazone ligands and their complexes

The 20th International Electronic Conference on Synthetic Organic Chemistry session General Organic SynthesisThe purpose of this work is the design, synthesis and characterization of thiosemicarbazone ligands bearing a phenyl boronic acid functionality. The main interest is the synthesis of organopalladium compounds with the boronic acid included within the corresponding molecule. These could lead to further modification of the properties of the organometallic species applicable to the Suzuki-Miyaura reaction. The ligands were prepared by reaction of acetylphenylboronic acid with several thiosemicarbazides. The compounds were characterized by IR, 1H and 31P NMR spectroscopyWe wish to thank the financial support received from the Xunta de Galicia (Galicia, Spain) under the Grupos de Referencia Competitiva Programme Projects GRC2015/009

Advanced monitoring of rail breakage in double-track railway lines by means of PCA techniques

This work describes a classifier designed to identify rail breakages in double-track railway lines, completing the electronic equipment carried out by authors. The main objective of this proposal is to guarantee the integrity of tracks before the railway traffic starts working. In addition, it facilitates maintenance tasks providing information about possible breakages. The detection of breakages is based on the analysis of eight currents provided by the electronic equipment, one per rail, at the ends of the section (emitting and receiving nodes). The imbalance that occurs among the value of these currents implies that there is at least a breakage in the track section under analysis. This analysis is conducted according to three phases. The first one identifies whether there is a breakage, and, in that case, the damaged track is identified. The second phase provides information about which rail is broken (internal, external or both of them) in the previously identified track. Finally, if there is only one breakage, the third phase estimates its most likely zone along the track section. This situation is considered as a classification problem, and solved by means of the Principal Component Analysis technique. This means that a significant number of measurements is required for every breakage pattern (types of breakages) to be considered. Due to the difficulty of having real data, the proposal has been validated using an 8km-long double-track hardware simulator specially designed by the authors, with specific localizations for breakages

Evaluación de los peligros naturales y antrópicos para el turismo en Playas del Este, Cuba

Coloquio de Geografía del Turismo, Ocio y Recreación de la Asociación de Geógrafos Españoles. Colmenarejo (Madrid), del 17 al 19 de junio de 2010.Esta investigación forma parte de los resultados del proyecto "El sistema de embalses como forma de regulación y aprovechamiento del agua en la cuenca del río Guanabo, Cuba. Indicadores de sostenibilidad" (Código: A/023914/09), financiado por la Agencia Española de Cooperación Internacional para el Desarrollo y cuyo investigador principal es José Damián Ruiz SinogaPublicad

Expression of a novel class of bacterial Ig-like proteins is required for IncHI plasmid conjugation

Antimicrobial resistance (AMR) is currently one of the most important challenges to the treatment of bacterial infections. A critical issue to combat AMR is to restrict its spread. In several instances, bacterial plasmids are involved in the global spread of AMR. Plasmids belonging to the incompatibility group (Inc)HI are widespread in Enterobacteriaceae and most of them express multiple antibiotic resistance determinants. They play a relevant role in the recent spread of colistin resistance. We present in this report novel findings regarding IncHI plasmid conjugation. Conjugative transfer in liquid medium of an IncHI plasmid requires expression of a plasmid-encoded, large-molecular-mass protein that contains an Ig-like domain. The protein, termed RSP, is encoded by a gene (ORF R0009) that maps in the Tra2 region of the IncHI1 R27 plasmid. The RSP protein is exported outside the cell by using the plasmid-encoded type IV secretion system that is also used for its transmission to new cells. Expression of the protein reduces cell motility and enables plasmid conjugation. Flagella are one of the cellular targets of the RSP protein. The RSP protein is required for a high rate of plasmid transfer in both flagellated and nonflagellated Salmonella cells. This effect suggests that RSP interacts with other cellular structures as well as with flagella. These unidentified interactions must facilitate mating pair formation and, hence, facilitate IncHI plasmid conjugation. Due to its location on the outer surfaces of the bacterial cell, targeting the RSP protein could be a means of controlling IncHI plasmid conjugation in natural environments or of combatting infections caused by AMR enterobacteria that harbor IncHI plasmids