94 GHz dual-reflector antenna with reflectarray subreflector

The design, construction and measured performance is described of an offset parabolic reflector antenna which employs a reflectarray subreflector to tilt the focused beam from the boresight direction at 94 GHz. An analysis technique based on the method of moments (MoM) is used to design the dual-reflector antenna. Numerical simulations were employed to demonstrate that the high gain pattern of the antenna can be tilted to a predetermined angle by introducing a progressive phase shift across the aperture of the reflectarray. Experimental validation of the approach was made by constructing a 28 × 28 element patch reflectarray which was designed to deflect the beam 5° from the boresight direction in the azimuth plane. The array was printed on a 115 µm thick metal backed quartz wafer and the radiation patterns of the dual reflector antenna were measured from 92.6-95.5 GHz. The experimental results are used to validate the analysis technique by comparing the radiation patterns and the reduction in the peak gain due to beam deflection from the boresight direction. Moreover the results demonstrate that this design concept can be developed further to create an electronically scanned dual reflector antenna by using a tunable reflectarray subreflector.

Children's judgements about pain at age 8-10 years:do extremely low birthweight (<or = 1000 g) children differ from full birthweight peers?

Children's judgements about pain at age 8-10 years were examined comparing two groups of children who had experienced different exposure to nociceptive procedures in the neonatal period: extremely low birthweight (ELBW) <or = 1000 g (N = 47) and full birthweight (FBW) > or = 2500 g (N = 37). The 24 pictures that comprise the Pediatric Pain Inventory, depicting events in four settings: medical, recreational, daily living, and psychosocial, were used as the pain stimuli. The subjects rated pain intensity using the Color Analog Scale and pain affect using the Facial Affective Scale. Child IQ and maternal education were statistically adjusted in group comparisons. Pain intensity and pain affect related to activities of daily living and recreation were significantly higher than psychosocial and medically related pain on both scales in both groups of children. Although the two groups of children did not differ overall in their perceptions of pain intensity or affect, the ELBW children rated medical pain intensity significantly higher than psychosocial pain, unlike the FBW group. Also, duration of neonatal intensive care unit stay for the ELBW children was related to increased pain affect ratings in recreational and daily living settings. Despite altered response to pain in the early years reported by parents, on the whole at 8-10 years of age ELBW children judged pain in pictures similarly to their term peers. However, differences were evident, which suggests that studies are needed of biobehavioural reactivity to pain beyond infancy, as well as research into beliefs, attitudes, and perceptions about pain during the course of childhood in formerly ELBW children.

The cemented custom femoral stem--a 10 year review

We report a series of 706 patients (759 hip implants) with an average follow up of 10.5 years (range, 10-11 years) following total hip replacement (THR) using a cemented custom-made femoral stem and a cemented HDP acetabular component. The fate of every implant is known. One hundred and seventy-four patients (23%) were deceased at the time of their 10-year review all died with a functioning THR in situ. Four hundred and sixty-two patients (61%) were subsequently reviewed. One hundred and twenty three patients (16%) were assessed by telephone review, as they were too ill or unwilling to attend. Kaplan-Meier survival analysis (all components) demonstrated a median survival at 10 years of 96.05% or 95% Confidence Intervals (CI) for median survival of (94.41% to 97.22%). Revision surgery occurred in 30 cases (3.9%). Seventeen had full revisions (2.2%) and 13 (1.7%) socket revisions only. Twenty-one out of 30 revisions were for infection or dislocation. There were 2 cases (0.3%) of revision for aseptic loosening of the stem. The 10-year results of the custom femoral titanium stem are encouraging and compare well with other cemented systems.

A systematic review and meta-analysis of the survival of non-feldspathic porcelain veneers over 5 and 10 years

PURPOSE: This systematic review aimed to report and explore the survival of dental veneers constructed from non-feldspathic porcelain over 5 and 10 years.

MATERIALS AND METHODS: A total of 4,294 articles were identified through a systematic search involving all databases in the Cochrane Library, MEDLINE (OVID), EMBASE, Web of Knowledge, specific journals (hand-search), conference proceedings, clinical trials registers, and collegiate contacts. Articles, abstracts, and gray literature were sought by two independent researchers. There were no language limitations. One hundred sixteen studies were identified for full-text assessment, with 10 included in the analysis (5 qualitative, 5 quantitative). Study characteristics and survival (Kaplan-Meier estimated cumulative survival and 95% confidence interval [CI]) were extracted or recalculated. A failed veneer was one which required an intervention that disrupted the original marginal integrity, had been partially or completely lost, or had lost retention more than twice. A meta-analysis and sensitivity analysis of Empress veneers was completed, with an assessment of statistical heterogeneity and publication bias. Clinical heterogeneity was explored for results of all veneering materials from included studies.

RESULTS: Within the 10 studies, veneers were fabricated with IPS Empress, IPS Empress 2, Cerinate, and Cerec computer-aided design/computer-assisted manufacture (CAD/CAM) materials VITA Mark I, VITA Mark II, Ivoclar ProCad. The meta-analysis showed the pooled estimate for Empress veneers to be 92.4% (95% CI: 89.8% to 95.0%) for 5-year survival and 66% to 94% (95% CI: 55% to 99%) for 10 years. Data regarding other non-feldspathic porcelain materials were lacking, with only a single study each reporting outcomes for Empress 2, Cerinate, and various Cerec porcelains over 5 years. The sensitivity analysis showed data from one study had an influencing and stabilizing effect on the 5-year pooled estimate.

CONCLUSION: The long-term outcome (> 5 years) of non-feldspathic porcelain veneers is sparsely reported in the literature. This systematic review indicates that the 5-year cumulative estimated survival for etchable non-feldspathic porcelain veneers is over 90%. Outcomes may prove clinically acceptable with time, but evidence remains lacking and the use of these materials for veneers remains experimental.

The attractive female body weight and female body dissatisfaction in 26 countries across 10 world regions: results of the International Body Project I

This study reports results from the first International Body Project (IBP-I), which surveyed 7,434 individuals in 10 major world regions about body weight ideals and body dissatisfaction. Participants completed the female Contour Drawing Figure Rating Scale (CDFRS) and self-reported their exposure to Western and local media. Results indicated there were significant cross-regional differences in the ideal female figure and body dissatisfaction, but effect sizes were small across high-socioeconomic-status (SES) sites. Within cultures, heavier bodies were preferred in low-SES sites compared to high-SES sites in Malaysia and South Africa (ds = 1.94-2.49) but not in Austria. Participant age, body mass index (BMI), and Western media exposure predicted body weight ideals. BMI and Western media exposure predicted body dissatisfaction among women. Our results show that body dissatisfaction and desire for thinness is commonplace in high-SES settings across world regions, highlighting the need for international attention to this problem.

Resolución N° 10 ¿Cuáles son los presupuestos de hecho y de derecho necesarios para poder acreditar el interés legitimo para poder recurrir actos administrativos de registro?

Servicios registrales

Enhanced pH and thermal stabilities of invertase immobilized on montmorillonite K-10

Invertase was adsorbed onto micro-porous acid-activated montmorillonite clay (K-10) by two procedures, namely adsorption and covalent binding. The immobilized enzymes were characterized by XRD, surface area measurements and 27Al NMR. XRD measurements revealed an expansion of clay layers due to immobilization which suggests that intercalation had taken place. Surface area measurements also support this observation. 27Al NMR showed that interaction of enzyme with tetrahedral and octahedral Al changes with the immobilization procedure. Sucrose hydrolysis was performed in a batch reactor. The immobilized enzymes showed enhanced pH and thermal stabilities. Optimum pH and temperature were found to increase upon immobilization. The effectiveness factor (η) and Michaelis constant (Km) suggest that diffusional resistances play a major role in the reaction. The immobilized invertase could be stored in buffer of pH 5 and 6 at 5 °C without any significant loss in activity for 20 days.

Aula de la Naturaleza de Perlora. Proyecto de Renovaci??n Pedag??gica. Curso 93-94

El objetivo del proyecto es atender las estancias de los alumnos en las Aulas de la Naturaleza y proporcionar un conocimiento te??rico y pr??ctico del entorno socinatural, incluyendo unas pr??cticas experimentales para desarrollar en los laboratorios escolares de estas instalaciones. Las actividades desarrolladas en el proyecto son eminentemente pr??cticas, enfocadas principalmente a un trabajo de campo, pretendiendo el acercamiento de docentes y alumnos a la naturaleza. Se desarrollaron unos materiales en forma de cuadernos de trabajo con informaci??n sobre el tema y trabajos a llevar a cabo, estos son: la playa de S. Pedro de Antromero, estudio de los f??siles marinos entre Peran y Carranques, un peque??o estudio sobre la flora de los acantilados, visita al Museo del Mar de Asturias y las formaciones de dunas en las playas de Verdicio y Xag??. Este material puede aplicarse adapt??ndolo a alumnos de nivel superior o inferior. En la memoria del proyecto se exponen las actividades, los contenidos, temporalizaci??n y una evaluaci??n comentada de todas las actividades con propuestas para posteriores actividades. La opini??n de profesores y alumnos acerca de su experiencia es favorable y casi todos estar??an dispuestos a repetirla.

Didàctica de l'escriptura : aplicacions de la metodologia CPP-TRS Toftoni (1986-94) a l'illa d'Eivissa. 'Didáctica de la escritura : aplicaciones de la metodología CPP-TRS Toftoni (1986-94) en la isla de Ibiza'.

Resumen tomado del propio recurso

Proyecto de innovación curricular en Educación Física : PICEF 94.

El proyecto cumple dos grandes objetivos: mejorar la calidad del proceso de enseñanza-aprendizaje y personalizar la Educación Física. Para ello, se sigue el siguiente proceso: Cada profesor imparte una serie de seminarios para los que está especialmente capacitado. Durante la primera semana de curso se entrega a los alumnos el plan de seminarios deportivos. El alumno se inscribe en los seminarios que quiera. Al finalizar el curso el alumno debe reunir tres créditos. El trabajo se ha desarrollado íntegramente en el Instituto Politécnico de Formación Profesional Santa Cruz de Tenerife sobre un total de 30 grupos de segundo grado, formando una población de 492 alumnos. El objeto de trabajo era probar un método que permitiese que los alumnos creasen su propio currículo de Educación Física intentando además crear hábitos deportivos. El proyecto parece que avanza. Hay que mejorar en aspectos de coordinación entre profesores para que todos los alumnos tengan acceso a todas las actividades. Es importante continuar con el proyecto hasta que acaben el segundo grado de Formación Profesional para poder tener un perfil del currículo individual de los alumnos. Se presenta un análisis de los datos resultantes de la experiencia en términos de tablas y porcentajes.

Interrater reliability of Alberta Infant Motor Scale in term and preterm born infants between 10 to 16 months age from Talca province - Chile

Purpose: To examine the ‘interrater reliability’ of the Alberta Infant Motor Scale (AIMS) in term and preterm born infants between 10 to 16 months age from Talca province, Maule Region - Chile. Subjects: 115 infants between 10 to 16 months age were incorporated to the study; 95 term born infants were attended in the local Health Centre in Talca City, and 20 preterm infants belonged to the Premature Infants Follow-Up Programme of Talca Regional Hospital. Methods: The motor behaviour of each infant was recorded and later it was assessed by two trained assessors using AIMS. It was obtained the total AIMS’ score and also from prone, supine, seated, and stand subscales. For ‘interrater reliability’ analysis it was used the Intraclass Coefficient of Correlation (ICC), the Standard Error of Measurement (SEM) and 95% limits of agreement. Results: The obtained ICC for the total scores AIMS were major than 0.94 (p<0.0002) for term and preterm born infants. The SEM of total scores was less than 3.1 points, higher than what was found in other similar studies. The 95% limits of agreement were +5.3 to -4.1 points and +7.7 to – 3.9 points in term and preterm born, respectively, revealing ‘interrater agreement’. Conclusion: The AIMS showed adequate ‘interrater reliable’ levels when was applied in Chilean term and preterm born from 10 to 16 month’s age.

Cuadernos para la coeducación 10. Tecnología. Etapa secundaria.

Se enmarca dentro del Programa Harimaguada de Educación Afectivo-Sexual de la Consejería de Educación, Cultura y Deportes del Gobierno de Canarias

Memoria de actividades para la formación del profesorado : cursos 1993-94 y 1994-95.

Las actividades de formación del profesorado que se presentan en esta Memoria responden a un Plan de Formación del Profesorado que se configura como un modelo acorde con el importante proceso de renovación de las enseñanzas que actualmente estamos viviendo, planteando procesos que buscan una descentralización cada vez mayor de la planificación, y estrategias de formación diversificadas. Basado en la práctica profesional, y con el Centro Educativo como eje principal. También se incluye las subvenciones concedidas a colectivos para el desarrollo de actividades de formación permamente del profesorado.

Memoria y Evaluación del Curso de Actualización Científica y Didáctica en Educación Física : Madrid 1993-94.

Memoria de un curso dirigido a docentes de Educación Física en la E.S.O. Su objetivo es analizar las necesidades y carencias formativas para que los profesionales de esta materia actualicen sus conocimientos científicos-didácticos. Se compone de una introducción donde se analizan dichas necesidades formativas (conocimiento constructivista del aprendizaje, del currículum, de las fuentes socioculturales, expresión corporal, actividades en la naturaleza, etc) y a partir de aquí sigue una relación de los objetivos, una evaluación del curso y la presentación de informes de seguimiento de las distintas fases del curso. Esta obra se complementa con el libro del curso propiamente dicho..