219 research outputs found
Enhancing smart environments with mobile robots
Sensor networks are becoming popular nowadays in the development of smart environments. Heavily relying on static sensor and actuators, though, such environments usually lacks of versatility regarding the provided services and interaction capabilities. Here we present a framework for smart environments where a service robot is included within the sensor network acting as a mobile sensor and/or actuator. Our framework integrates on-the-shelf technologies to ensure its adaptability to a variety of sensor technologies and robotic software. Two pilot cases
are presented as evaluation of our proposal.Universidad de Málaga. Campus de Excelencia Internacional Andalucía Tech
Revisiting the Maxillary Teeth in 384 Subjects Reveals A Deviation From the Classical Aesthetic Dimensions
Dental esthetics need to be defined from the scientific perspective in order to obtain predictable
treatment outcomes and avoid the effects of subjectivisms on the part of the dental profesional. It
can be deduced that the ideal dimensions in the maxillary anterior sector are difficult to establish.
Therefore, the primary purpose of this study was to define the dimensions of the maxillary anterior
teeth and the relationships between them. In addition, an analysis was made to reinvestigate whether
they complied with the Golden proportion, the RED (Recurrent Esthetic Dental) proportion and the
Golden percentage. A total of 2304 tooth corresponding to 384 subjects were evaluated. The central
incisor presented a mean width of 8.58 mm and a height of 9.35 mm, while the lateral incisor presented
a width of 6.69 mm and a height of 7.75 mm. The mean width of the canine was 7.69 mm, with a height
of 8.68 mm. The teeth revisited in this study did not comply with the ideal dimensions in the anterior
maxillary sector as established by the Golden proportion, Golden percentage and RED. The information
obtained from this study can be clinically applied to restore the dimensions during periodontal surgery,
restorative dentistry and prosthetic rehabilitation
Treatment alternatives for the rehabilitation of the posterior edentulous maxilla
Rehabilitation of the edentulous maxilla with implant-supported fixed dental prostheses can represent a significant clinical challenge due to limited bone availability and surgical access, among other factors. This review addresses several treatment options to replace missing teeth in posterior maxillary segments, namely the placement of standard implants in conjunction with maxillary sinus floor augmentation, short implants, tilted implants, and distal cantilever extensions. Pertinent technical information and a concise summary of relevant evidence on the reported outcomes of these different therapeutic approaches are presented, along with a set of clinical guidelines to facilitate decision-making processes and optimize the outcomes of therapy
Improvement of the sensory and autonomous capability of robots through olfaction: the IRO Project
Proyecto de Excelencia Junta de Andalucía TEP2012-530Olfaction is a valuable source of information about the environment that has not been su ciently exploited in mobile robotics
yet. Certainly, odor information can contribute to other sensing modalities, e.g. vision, to successfully accomplish high-level robot
activities, such as task planning or execution in human environments. This paper describes the developments carried out in the scope of the IRO project, which aims at making progress in this direction by investigating mechanisms that exploit odor information (usually coming in the form of the type of volatile and its concentration) in problems like object recognition and scene-activity understanding. A distinctive aspect of this research is the special attention paid to the role of semantics within the robot perception and decisionmaking processes. The results of the IRO project have improved the robot capabilities in terms of efciency, autonomy and usefulness.Universidad de Málaga. Campus de Excelencia Internacional Andalucía Tec
Motivations and Reasons for Exercising in Water: Gender and Age Differences in a Sample of Spanish Exercisers
The purposes of this study were, on the one hand, to relate the reasons for exercising with self-determination and, on the other, to check gender and age differences with a sample of 311 exercisers in water. The data were collected using the Behavioral Regulation in Exercise Questionnaire–2 and Motives for Physical Activities Measure–Revised. A positive and significant correlation was seen between self-determination and the reasons for exercise, with self-determination predicting 22% by enjoyment and 8% by fitness/health reasons. Similarly, the multivariate analysis showed that the women had more self-determination than the men and that they also rated fitness/health, social, enjoyment, and appearance reasons more highly. In addition, older exercisers rated the fitness/health reason more highly than the younger people. It seems that exercising in water is more satisfying for women than for men
Preclinical Evidence for the Use of Oral Mesenchymal Stem Cell-Derived Extracellular Vesicles in Bone Regenerative Therapy: A Systematic Review
Tissue engineering is a relatively recent research area aimed at developing artificial tissues that can restore, maintain, or even improve the anatomical and/or functional integrity of injured tissues. Otolaryngology, as a leading surgical specialty in head and neck surgery, is a candidate for the use of these advanced therapies and medicinal products developed. Nevertheless, a knowledge-based analysis of both areas together is still needed. The dataset was retrieved from the Web of Science database from 1900 to 2020. SciMAT software was used to perform the science mapping analysis and the data for the biomedical translation identification was obtained from the iCite platform. Regarding the analysis of the cognitive structure, we find consolidated research lines, such as the generation of cartilage for use as a graft in reconstructive surgery, reconstruction of microtia, or the closure of perforations of the tympanic membrane. This last research area occupies the most relevant clinical translation with the rest of the areas presenting a lower translational level. In conclusion, Tissue engineering is still in an early translational stage in otolaryngology, otology being the field where most advances have been achieved. Therefore, although otolaryngologists should play an active role in translational research in tissue engineering, greater multidisciplinary efforts are required to promote and encourage the translation of potential clinical applications of tissue engineering for routine clinical useUniversidad Peruana
de Ciencias Aplicadas, Lima, Perú (UPC-ExPost-2023-2)The
PECART-0027-2020 (Consejería de Salud y Familias, Junta
de Andalucía, Spain)ProyExcel_00875 (Consejería
de Transformación Económica, Industria, Conocimiento y
Universidades, Junta de Andalucía, Spain)Research Group
#CTS-1028 (MP-M and PG-M, Junta de Andalucía, Spain
CTS y medios de comunicación social: Algunas perspectivas para su análisis
Este artículo pretende integrar en las distintas líneas de investigación sobre Ciencia, Tecnología y Sociedad (CTS) el estudio de los medios de comunicación social desde distintas perspectivas de análisis: el ámbito histórico, el ámbito social, el ámbito político, el ámbito comunicativo y el ámbito cultural, especialmente considerando la dimensión tecnológica del proceso de la acción comunicativa. Es necesario vincular el análisis de los medios de comunicación y de las formas de la comunicación social desde una perspectiva CTS porque el control social de la ciencia y la tecnología tiene que pasar por informar mejor a los ciudadanos, así como articular cauces institucionales para que los ciudadanos expresen su voluntad y tengan criterios para entender la realidad que les rodea en la sociedad de la información
Feature Selection, Ranking of Each Feature and Classification for the Diagnosis of Community Acquired Legionella Pneumonia
Diagnosis of community acquired legionella pneumonia (CALP) is currently performed by means of laboratory techniques which may delay diagnosis several hours. To determine whether ANN can categorize CALP and non-legionella community-acquired pneumonia (NLCAP) and be standard for use by clinicians, we prospectively studied 203 patients with community-acquired pneumonia (CAP) diagnosed by laboratory tests. Twenty one clinical and analytical variables were recorded to train a neural net with two classes (LCAP or NLCAP class). In this paper we deal with the problem of diagnosis, feature selection, and ranking of the features as a function of their classification importance, and the design of a classifier the criteria of maximizing the ROC (Receiving operating characteristics) area, which gives a good trade-off between true positives and false negatives. In order to guarantee the validity of the statistics; the train-validation-test databases were rotated by the jackknife technique, and a multistarting procedure was done in order to make the system insensitive to local maxima
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