276 research outputs found
Solving Complex Data-Streaming Problems by Applying Economic-Based Principles to Mobile and Wireless Resource Constraint Networks
The applications that employ mobile networks depend on the continuous input of reliable data collected by sensing devices. A common application is in military systems, where as an example, drones that are sent on a mission can communicate with each other, exchange sensed data, and autonomously make decisions. Although the mobility of nodes enhances the network coverage, connectivity, and scalability, it introduces pressing issues in data reliability compounded by restrictions in sensor energy resources, as well as limitations in available memory, and computational capacity.
This dissertation investigates the issues that mobile networks encounter in providing reliable data. Our research goal is to develop a diverse set of novel data handling solutions for mobile sensor systems providing reliable data by considering the dynamic trajectory behavior relationships among nodes, and the constraints inherent to mobile nodes. We study the applicability of economic models, which are simplified versions of real-world situations that let us observe and make predictions about economic behavior, to our domain. First, we develop a data cleaning method by introducing the notion of “beta,” a measure that quantifies the risk associated with trusting the accuracy of the data provided by a node based on trajectory behavior similarity. Next, we study the reconstruction of highly incomplete data streams. Our method determines the level of trust in data accuracy by assigning variable “weights” considering the quality and the origin of data. Thirdly, we design a behavior-based data reduction and trend prediction technique using Japanese candlesticks. This method reduces the dataset to 5% of its original size while preserving the behavioral patterns. Finally, we develop a data cleaning distribution method for energy-harvesting networks. Based on the Leontief Input-Output model, this method increases the data that is run through cleaning and the network uptime
Valorar el uso de la técnica del "storytelling" en la enseñanza y aprendizaje de la lengua extranjera: inglés
El uso de la técnica del storytelling como método para la enseñanza del inglés, está cada vez
más presente en la educación primaria debido a su gran potencial a la hora de trasmitir
conocimientos, motivar al alumnado y como potenciador de la oralidad que caracteriza esta
asignatura. Es por ello, que este trabajo de Fin de Grado se presenta como una revisión
bibliográfica sobre el uso que se da de este en las aulas, investigando, además, la cantidad de
producción que hay acerca del tema en diferentes bases de datos y revistas electrónicas, todo
ello con la finalidad de valorar el uso que se da de esta técnica en la enseñanza y aprendizaje
de la lengua extranjera, inglés.The use of the storytelling technique as a method for teaching English is increasingly
in primary education due to its great potential for transmitting knowledge, motivating students
and as a way for developing the orality that characterizes this subject. This Final Proyect is
presented as a bibliographic review of its use in classrooms, also investigating the amount of
production about this topic in different databases and electronic journals. All this with the
purpose to value the use of this technique in the teaching and learning of the foreign language,
English
El principio de legalidad y la potestad discrecional en derecho administrativo
El principio de la legalidad es imprescindible en todo Estado de derecho aunque las estructuras económicas cambien en cada Estado pero la unión a la norma jurídica es la misma
La irrupción del cálculo del coste efectivo en la Contabilidad analítica local: principales cambios entre el proyecto y la orden hap/2075/2014, de 6 de noviembre
En este trabajo tratamos de acercarnos al controvertido concepto de coste efectivo que ha irrumpido con fuerza en el ámbito de la administración local y cuyo cálculo será obligatorio para todas las entidades locales a partir de 2014 al objeto de cumplir con las exigencias establecidas en la Ley de Transparencia.Universidad de Málaga. Campus de Excelencia Internacional Andalucía Tech
La política de cooperación al desarrollo en España: análisis de la información revelada por las universidades públicas españolas
El presente trabajo se enmarca dentro de un trabajo de investigación dirigido al estudio de la participación de la Universidad Pública Española en la política nacional de Cooperación al Desarrollo. Dicha investigación se orienta al análisis empírico de las acciones de Cooperación de las Universidades, los recursos destinados a las mismas y su control, así como las variables que condicionan su realización, su eficacia, eficiencia e impacto.
En esta comunicación efectuamos un examen de la información publicada por las Universidades en el ámbito de la docencia.Universidad de Málaga.Campus de Excelencia Internacional Andalucia Tec
Soft Skills: A Comparative Analysis Between Online and Classroom Teaching
Currently the Spanish universities are making a great effort to effectively incorporate the development and assessment of generic skills in their training programs. Information and communications technologies (ICT) offer a wide range of possibilities but create uncertainty among teachers about the process and results. It is considered of interest to conduct a study to analyze the extent to which social skills like commitment, communication and teamwork are acquired by students and teachers. It seeks to ascertain the influence of the learning context, online or classroom training, in the development of these personal skills among the participants in the sample. For this study two universities have been chosen, Universidad a Distancia de Madrid (UDIMA) offering online training environment, and Universidad Politécnica de Madrid (UPM) with classroom training modality. A total of 257 individuals, 230 students and 27 teachers have answered the survey called Evalsoft. This instrument was designed in the project with the same name by a research team from Universidad Complutense of Madrid (UCM). Some interesting conclusions can be highlighted: it is in the online context where there are higher levels of commitment and teamwork than in the classroom modality; teachers have higher social skills that students and these improve with age. Sex and the training program appear to influence these social skills
Diseño de un curso de e-learning en cartografía temática
Los grandes avances en las nuevas tecnologías, evidentes en materias técnicas y científicas, repercuten también en campos menos visibles para los profesionales de la topografía y cartografía. La educación también se ve afectada y, como consecuencia de ello, surgen nuevas modalidades de enseñanza como el e-learning. Su potencial es incuestionable, pues rompe con barreras espaciales y temporales. Sin embargo, plantear cursos de este tipo no está exento de dificultades, pues exige una adaptación a las particularidades del medio y establecer un nuevo modelo de enseñanza-aprendizaje. En esta exposición se presentan las consideraciones realizadas por la Universidad Politécnica de Madrid en el diseño de un curso e-learning de Cartografía Temática ofrecido por el Instituto Geográfico Nacional, incidiendo en las ventajas de aplicar estándares en la gestión de contenidos y el uso de plataformas educativas virtuales que los acepten
Immature rats show ovulatory defects similar to those in adult rats lacking prostaglandin and progesterone actions
Gonadotropin-primed immature rats (GPIR) constitute a widely used model for the study of ovulation. Although the equivalence between the ovulatory process in immature and adult rats is generally assumed, the morphological and functional characteristics of ovulation in immature rats have been scarcely considered. We describe herein the morphological aspects of the ovulatory process in GPIR and their response to classical ovulation inhibitors, such as the inhibitor of prostaglandin (PG) synthesis indomethacin (INDO) and a progesterone (P) receptor (PR) antagonist (RU486). Immature Wistar rats were primed with equine chorionic gonadotropin (eCG) at 21, 23 or 25 days of age, injected with human chorionic gonadotropin (hCG) 48 h later, and sacrificed 16 h after hCG treatment, to assess follicle rupture and ovulation. Surprisingly, GPIR showed age-related ovulatory defects close similar to those in adult rats lacking P and PG actions. Rats primed with eCG at 21 or 23 days of age showed abnormally ruptured corpora lutea in which the cumulus-oocyte complex (COC) was trapped or had been released to the ovarian interstitum, invading the ovarian stroma and blood and lymphatic vessels. Supplementation of immature rats with exogenous P and/or PG of the E series did not significantly inhibit abnormal follicle rupture. Otherwise, ovulatory defects were practically absent in rats primed with eCG at 25 days of age. GPIR treated with INDO showed the same ovulatory alterations than vehicle-treated ones, although affecting to a higher proportion of follicles. Blocking P actions with RU486 increased the number of COC trapped inside corpora lutea and decreased ovulation. The presence of ovulatory defects in GPIR, suggests that the capacity of the immature ovary to undergo the coordinate changes leading to effective ovulation is not fully established in Wistar rats primed with eCG before 25 days of age
Assessing Creativity In Engineering Students: A Comparative Between Degrees and Sudents In First And Last Year
An online open access test (CREAX self-assessment) has been used in this work so that students from degrees in engineering in the Universidad Polite¿cnica of Madrid (UPM) could self-assess their creative competence after several classroom activities. Different groups from the first year course have been statistically compared using data from their assessment. These first year students had different professors in the subject ?Technical Drawing? and belonged to several degrees in the UPM. They were as well compared regarding sex and a group of first year students was also compared to another last year group of the degree so as to observe possible differences in the achievement of this competence. Only one difference was detected concerning sex in one of the degrees. Among degrees, the higher marks obtained by students who had done specific exercises for the development of creativity in class is highlighted. Finally, a significantly high mark was observed in students during their last year of degree with respect to first year students. The tool CREAX has become very useful in the assessment of this competence in the UPM degrees in which it has been implemented
Environmentally driven transcriptomic and metabolic changes leading to color differences in “Golden Reinders” apples
Apple is characterized by its high adaptation to diverse growing environments.
However, little is still known about how different environments can regulate
at the metabolic or molecular level specific apple quality traits such as the
yellow fruit peel color. In this study, changes in carotenoids and chlorophylls,
antioxidants as well as differences in the transcriptome were investigated by
comparing the peel of “Golden Reinders” apples grown at different valley
and mountain orchards. Mountain environment favored the development
of yellow color, which was not caused by an enhanced accumulation of
carotenoids but rather by a decrease in the chlorophyll content. The yellow
phenotype was also associated to higher expression of genes related to
chloroplast functions and oxidative stress. Time-course analysis over the
last stages of apple development and ripening, in fruit from both locations,
further revealed that the environment differentially modulated isoprenoids
and phenylpropanoid metabolism and pointed out a key role for H2O2 in
triggering apple peel degreening. Overall, the results presented herein provide
new insights into how different environmental conditions regulate pigment
and antioxidant metabolism in apple leading to noticeable differences in the
apple peel colorinfo:eu-repo/semantics/publishedVersio
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