A wearable passive force sensor/active interrogator intended for intra-splint use for the detection and recording of bruxism

A wearable bite force sensing system proto type made up of a passive force sensor and an active interrogator/reader is described. The system is aimed a* bite sensing using a wireless link between the passive sensor to be located in (lie moutb and the external interrogator that can record the evolution of detected force. The interrogator generates a magnetic field that energizes the passive sensor which is also used as the information transmission earlier. The passive farce sensor does not need a battery to operate it because it can extract the energy it needs to operate fmin the carrier field generated by the interrogator. Occlusal force quantification can be used for the detection of bruxing episodes and registration. The small size of the components used (sind) and its further size reduction if they are integrated would allow an implant the size of a tooth

Technologies in the cruise tourism services: A systematic and bibliometric approach

COVID-19 and the faster evolution of emerging technologies forced companies to create new business models and become more digital. Therefore, companies worldwide have adopted different digital technologies such as online stores, digital assistants, digital panels, or robotic services. This trend has also impacted the cruise industry, with new cruise ships using digital technologies onboard such as: Artificial Intelligence (AI): ⎼ ZOE digital assistance is used in the latest MSC Cruise Ships. ⎼ Virtual Concierge app used on the newest Celebrity Cruises Ships. ⎼ Robotic bartender at the Bionic Bar on Royal Caribbean Cruise Lines. ⎼ Pepper, the humanoid robot at Costa Cruise Line ships. ⎼ Rob the first humanoid robot bartender at MSC Cruise ships. Virtual Reality (VR): ⎼ Shore excursions ⎼ Culinary dining Despite the strong adoption of new technologies in cruise ships, existing studies related to the use of AI, VR, or robots in smart tourism are mostly limited to restaurants, hotels, or airports. Opening an opportunity to develop a systematic and bibliometric review on this topic - Technologies in the cruise tourism services.info:eu-repo/semantics/publishedVersio

Ansiedad matemática en estudiantes universitarios de Costa Rica y su relación con el rendimientos académico y variables sociodemográficas

The study tried to determine the relationship between mathematics anxiety and the variables of gender, academic achievement, number of times students have taken the course and type of school in students taking the course MAT-001 General Mathematics of the National University of Costa Rica. To that end, a purposive sample of 472 students of such course was collected and the instrument of Hopko, Mahadevan, Bare and Hunt was adjusted to it (2003). Data collected were analyzed with the statistical program SPSS applying the corresponding hypothesis tests. According with the results, students showed a medium level of math anxiety and women showed a math anxiety significantly higher than men, while student graduated from private schools showed a significantly lower level of math anxiety than those from public schools or from the modality “General Equivalency Diploma”. Besides, the higher the math anxiety of the student is, the lower their academic achievement will be. Finally, there were no statistically significant differences between math anxiety and the number of times students have taken the course.El estudio buscó determinar la relación entre ansiedad matemática y las variables género, rendimiento académico, cantidad de veces que ha llevado el curso y tipo de colegio, en estudiantes del curso MAT-001 Matemática General de la Universidad Nacional de Costa Rica. Para ello se escogió una muestra intencional de 472 alumnos de dicho curso y se les aplicó una adecuación del instrumento de Hopko, Mahadevan, Bare y Hunt (2003). Los datos recolectados fueron analizados con el programa estadístico SPSS aplicando las pruebas de hipótesis correspondientes. De acuerdo con los resultados,  se encontró que los estudiantes presentaron un nivel medio de ansiedad Matemática y que las mujeres mostraron una ansiedad matemática significativamente mayor que los hombres; mientras que los estudiantes egresados de colegios privados obtuvieron una ansiedad matemática significativamente menor que los provenientes de colegios públicos o de la modalidad de “bachillerato por madurez”. De igual forma resultó que entre mayor es la ansiedad matemática del estudiante su rendimiento académico será significativamente menor. Por último, no se encontraron diferencias estadísticamente significativas entre  la ansiedad matemática y la cantidad de veces que el estudiante ha llevado el curso

Ansiedad matemática en estudiantes universitarios de Costa Rica y su relación con el rendimientos académico y variables sociodemográficas

The study tried to determine the relationship between mathematics anxiety and the variables of gender, academic achievement, number of times students have taken the course and type of school in students taking the course MAT-001 General Mathematics of the National University of Costa Rica. To that end, a purposive sample of 472 students of such course was collected and the instrument of Hopko, Mahadevan, Bare and Hunt was adjusted to it (2003). Data collected were analyzed with the statistical program SPSS applying the corresponding hypothesis tests. According with the results, students showed a medium level of math anxiety and women showed a math anxiety significantly higher than men, while student graduated from private schools showed a significantly lower level of math anxiety than those from public schools or from the modality “General Equivalency Diploma”. Besides, the higher the math anxiety of the student is, the lower their academic achievement will be. Finally, there were no statistically significant differences between math anxiety and the number of times students have taken the course.El estudio buscó determinar la relación entre ansiedad matemática y las variables género, rendimiento académico, cantidad de veces que ha llevado el curso y tipo de colegio, en estudiantes del curso MAT-001 Matemática General de la Universidad Nacional de Costa Rica. Para ello se escogió una muestra intencional de 472 alumnos de dicho curso y se les aplicó una adecuación del instrumento de Hopko, Mahadevan, Bare y Hunt (2003). Los datos recolectados fueron analizados con el programa estadístico SPSS aplicando las pruebas de hipótesis correspondientes. De acuerdo con los resultados,  se encontró que los estudiantes presentaron un nivel medio de ansiedad Matemática y que las mujeres mostraron una ansiedad matemática significativamente mayor que los hombres; mientras que los estudiantes egresados de colegios privados obtuvieron una ansiedad matemática significativamente menor que los provenientes de colegios públicos o de la modalidad de “bachillerato por madurez”. De igual forma resultó que entre mayor es la ansiedad matemática del estudiante su rendimiento académico será significativamente menor. Por último, no se encontraron diferencias estadísticamente significativas entre  la ansiedad matemática y la cantidad de veces que el estudiante ha llevado el curso

Coherent states for the q-deformed quantum mechanics on a circle

The q-deformed coherent states for a quantum particle on a circle are introduced and their properties investigated.Comment: 11 pages, 2 PostScript figure

Control of contacts evaluation and the chemoprophylaxis in the prevention of Tuberculosis, according to the Technical Norm of Health, in the Health Center "El Bosque", La Victoria, Chiclayo - Peru, August - October, 2007

El seguimiento de los contactos y la aplicación de la quimioprofilaxis en la prevención de Tuberculosis según la Norma Técnica para el Control de la Tuberculosis no se sabe si se efectúa adecuadamente en el área de influencia de un Centro de Salud. Con este propósito se realizó el estudio a fin de evaluar el control de contactos y la aplicación de la quimioprofilaxis, según la Norma Técnica de Salud. El estudio es del tipo descriptivo transversal, y los datos se obtuvieron de entrevistas estructuradas a las familias registradas en el Centro de Salud, las cuales poseen una o varias personas con TBC. Se emplearon las fichas familiares para conocer si éstas se encontraban correctamente llenadas, así como un interrogatorio a la jefa del personal de Enfermería encargada del área de salud para saber de qué modo se ha estado llevando la aplicación de la quimioprofilaxis y el control de contactos en la prevención de TBC. Los datos se procesaron en Microsoft Office Excel y se aplicó la prueba estadística de Chi cuadrado independencia de criterios. Se concluye que ninguno de los aspectos en estudio es realizado de acuerdo a lo estipulado en la Norma Técnica para el Control de la Tuberculosis, debido a factores como la falta de información brindada, la ausencia de visitas domiciliarias, la deficiente supervisión; los que serán tratados en el presente documento.Abstract : The follow-up of the contacts and the application of the chemoprophylaxis in the prevention of Tuberculosis according to the Technical Norm for the Control of the Tuberculosis is not known if it is carried out adequately in the area of influence of a Health Center. With this intention the study was realized in order to evaluate the control of contacts and the application of the chemoprophylaxis, according to the Technical Norm of Health. The study is descriptive transverse type, and the information was obtained of interviews constructed to the families registered in the Center of Health, which one or several persons possess with TBC. Familiar cards were used to know if these were filled correctly, as well as an interrogation to the chief of the personnel of nursing in charge of the area of health to know of what way one has been taking the application of the chemoprophylaxis and the control of contacts in TBC's prevention. The information was tried in Microsoft Scullery Excel and there applied to itself the statistical test of square Chi independence of criteria. It concludes that none of the aspects in study is realized in agreement to the stipulated in the Technical Norm for the Control of the Tuberculosis; due to factors as the lack of offered information, the absence of domiciliary visits, the deficient supervision

On the uncertainty relations and squeezed states for the quantum mechanics on a circle

The uncertainty relations for the position and momentum of a quantum particle on a circle are identified minimized by the corresponding coherent states. The sqeezed states in the case of the circular motion are introduced and discussed in the context of the uncertainty relations.Comment: 4 figure

Coherent states for a particle on a sphere

The coherent states for a particle on a sphere are introduced. These states are labelled by points of the classical phase space, that is the position on the sphere and the angular momentum of a particle. As with the coherent states for a particle on a circle discussed in Kowalski K {\em et al} 1996 {\em J. Phys. A} {\bf 29} 4149, we deal with a deformation of the classical phase space related with quantum fluctuations. The expectation values of the position and the angular momentum in the coherent states are regarded as the best possible approximation of the classical phase space. The correctness of the introduced coherent states is illustrated by an example of the rotator.Comment: LaTeX, 16 pages, 2 figure