Geostatistical Prediction of Ocean Outfall Plume Characteristics Based on an Autonomous Underwater Vehicle

Geostatistics has been successfully used to analyze and characterize the spatial variability of environmental properties. Besides giving estimated values at unsampled locations, it provides a measure of the accuracy of the estimate, which is a significant advantage over traditional methods used to assess pollution. In this work universal block kriging is novelty used to model and map the spatial distribution of salinity measurements gathered by an Autonomous Underwater Vehicle in a sea outfall monitoring campaign, with the aim of distinguishing the effluent plume from the receiving waters, characterizing its spatial variability in the vicinity of the discharge and estimating dilution. The results demonstrate that geostatistical methodology can provide good estimates of the dispersion of effluents that are very valuable in assessing the environmental impact and managing sea outfalls. Moreover, since accurate measurements of the plume’s dilution are rare, these studies might be very helpful in the future to validate dispersion models.This work was supported by project WWECO- Environmental Assessment and Modeling of Wastewater Discharges using Autonomous Underwater Vehicles Bio-optical Observations-funded by the Foundation for Science and Technology (FCT) under the Program for Research Projects in all scientific areas (Programa de Projectos de Investigação em todos os domínos científicos) (ref. PTDC/MAR/74059/2006)

Validity of common modelling approximations for precessing binary black holes with higher-order modes

The current paradigm for constructing waveforms from precessing compact binaries is to first construct a waveform in a non-inertial, co-precessing binary source frame followed by a time-dependent rotation to map back to the physical, inertial frame. A key insight in the construction of these models is that the co-precessing waveform can be effectively mapped to some equivalent aligned spin waveform. Secondly, the time-dependent rotation implicitly introduces $m$-mode mixing, necessitating an accurate description of higher-order modes in the co-precessing frame. We assess the efficacy of this modelling strategy in the strong field regime using Numerical Relativity simulations. We find that this framework allows for the highly accurate construction of $(2,\pm 2)$ modes in our data set, while for higher order modes, especially the $(2,|1|), (3,|2|)$ and $(4,|3|)$ modes, we find rather large mismatches. We also investigate a variant of the approximate map between co-precessing and aligned spin waveforms, where we only identify the slowly varying part of the time domain co-precessing waveforms with the aligned-spin one, but find no significant improvement. Our results indicate that the simple paradigm to construct precessing waveforms does not provide an accurate description of higher order modes in the strong-field regime, and demonstrate the necessity for modelling mode asymmetries and mode-mixing to significantly improve the description of precessing higher order modes.Comment: Improved version: correcting typos, adding acknowledgement and more reference

La motivación en la elección de la carrera de trabajo social

La motivación en la elección de la carrera universitaria juega un papel relevante y conlleva una función importante en el desempeño de los estudios académicos. Es necesario conocer cuáles son los motivos que llevan a los/as estudiantes a escoger la carrera de Trabajo Social, así como comprenderlos para poder potenciar dichos motivos en futuras generaciones de estudiantes de Trabajo Social. Conocer los motivos que impulsan a los/as alumnos/as a la elección de esta carrera brindará la oportunidad de descubrir sus intereses más ligados a la profesión de Trabajo Social, permitirá estimular a los estudiantes durante la vida académica universitaria y, de este modo, convertirles en profesionales motivados en su futura labor profesional con perspectivas transformadoras en la sociedad. Este trabajo pone énfasis en la motivación y pretende dar a conocer los motivos de los/as estudiantes en la toma de decisión en el momento de elección de la carrera de Trabajo Social.Grado en Trabajo Socia

The Impact of Social Isolation during the COVID-19 Pandemic: A Personal Account of Social Isolation

I am no stranger to social isolation and its effects on my mental, emotional and physical health. A variety of factors such as limited research, misconceptions associated with its impact mainly in older adults, and its interchangeability with loneliness, previously impeded people’s knowledge and understanding of the subject. This research paper is a hybrid of personal experiences as well as quantitative and qualitative data that analyzed how the restrictions shed light on the effects and misconceptions of social isolation, especially in the disabled community during the COVID-19 pandemic. Females and males survey participants (N- 68) were asked to report their level of knowledge and experience with social isolation both before and after the implementation of the COVID-19 stay-at-home orders, mask and social distance mandates, while interview participants (N-3) provided first-hand accounts on how the coronavirus pandemic socially impacted people on an individual level within the medical and disabled communities. Results highlighted (1) new awareness and understanding of social isolation, (2) the inaccuracy of the misconception that only older adults are affected by social isolation, (3) exacerbated how those medically compromised are perceived as expendable, and (4) an increase in physical and emotional effects resulting from social isolation. Ultimately, the risks and consequences associated with the social isolation experienced during these last two years have been profound and far-reaching, yet further research and resources dedicated to this issue is needed to better understand the long-lasting impact of social isolation on our society as a whole

Personalization in Digital Advertising

Dissertation presented as the partial requirement for obtaining a Master's degree in Statistics and Information Management, specialization in Marketing Research and CRMThis research studies the impact a well-planned digital advertisement campaign and user-friendly online experience can have on Brands awareness and sales. As the Digital landscape evolves, so has Online Advertisement and Data collection, making it possible for Advertisers to know more about who is navigating online, where they are, and how to approach them. With the gathering of online users’ insights, brands can impact whom they want and how they want to, making their communication more relevant, therefore creating less noise and more conversation. This work aims at proving that these segmented and personalized campaigns lead to more engagement and sales than the ones that just target anybody with no defined criteria. It will also consider the opinions of online users regarding online advertisement and the fact that brands can use their navigating information to plan and implement digital campaigns. With this in mind, it would be possible to detect a relation between advertisement quality and user experience with the increase or decrease of Ad Blockers downloads, especially amongst Generation Z, that is the generation more comfortable with digital technology and will be the consumers of the future. By the end of the study we should be able to understand better the environment of actual digital advertisement and the way it can and should evolve in the future regarding all the insights we are able to collect from this research

La selección por competencias aplicada en la seguridad privada

En el siguiente trabajo se estudio uno de los procesos de la Gestión de Recursos Humanos: siendo este el proceso de Selección de Personal basado en Competencias Laborales, analizando en cada uno de sus pasos la efectividad y la aplicabilidad en una empresa de Seguridad Privada en Colombia. En la primera parte del trabajo se recopila las definiciones de competencia laboral y sus componentes, luego se estudia la viabilidad de su aplicación y su efectividad dentro del proceso de Selección, con el objetivo de disminuir los índices de rotación de personal que se presentan en el sector de la seguridad privada y con ello aumentar los niveles de satisfacción de los cliente

Perceptions of effective english teaching in the PNIEB program in Puebla

“This investigation will be focused on the first cycle, fundamentally with the children of third grade of kindergarten. PNIEB is a federal program which has a socio-cultural approach that incorporates social practices of the language, this program started to be proved in seven states mainly: Aguascalientes, Coahuila, Durango, Nuevo León, Sinaloa, Sonora and Tamaulipas; 1000 schools were chosen, among them 300 Kindergartens. These schools were characterized by their urban or semi-urban mode, they were already fully organized and finally they had two or three groups for grade. - This program plans to cover the whole country within no more than ten years from 2011, all the country has been divided in 3 groups, in a plan of three, five and ten years. Puebla is placed in the 5 years plan to have proficient teachers of English covering the four cycles. This program sets 3 hours per week during three days a week, at the end of the course there will be 300 hours. PNIEB uses the common European framework of reference to evaluate students´ progress in order to make objective assessments and pass them to the next level.

Forecasting: theory and practice

Forecasting has always been at the forefront of decision making and planning. The uncertainty that surrounds the future is both exciting and challenging, with individuals and organisations seeking to minimise risks and maximise utilities. The large number of forecasting applications calls for a diverse set of forecasting methods to tackle real-life challenges. This article provides a non-systematic review of the theory and the practice of forecasting. We provide an overview of a wide range of theoretical, state-of-the-art models, methods, principles, and approaches to prepare, produce, organise, and evaluate forecasts. We then demonstrate how such theoretical concepts are applied in a variety of real-life contexts. We do not claim that this review is an exhaustive list of methods and applications. However, we wish that our encyclopedic presentation will offer a point of reference for the rich work that has been undertaken over the last decades, with some key insights for the future of forecasting theory and practice. Given its encyclopedic nature, the intended mode of reading is non-linear. We offer cross-references to allow the readers to navigate through the various topics. We complement the theoretical concepts and applications covered by large lists of free or open-source software implementations and publicly-available databases.info:eu-repo/semantics/publishedVersio

Toxina botulínica y su aplicación en ortodoncia

En un siglo en el que los tratamientos alternativos son indicados con mayor frecuencia, la toxina botulínica representa la toxina biológica más potente conocida hasta hoy. La toxina botulínica es producida por el Clostridium Botulinium, una bacteria anaeróbica Gram positiva. Dentro de todos los tipos de toxina botulínica que se usan, el tipo A es la más ampliamente utilizada en ensayos terapéuticos en humanos, y se ha convertido en el tratamiento de elección para múltiples patologías, como el blefarospasmo, el espasmo hemifacial, la distonía cervical y la distonía laríngea. También constituye una alternativa terapéutica en Estomatología, siendo aplicada en el tratamiento de la distonía oromandibular y en el manejo del dolor facial. La presente investigación trata sobre el conocimiento y discusión del uso de la toxina botulínica en el tratamiento del dolor disfunción temporomandibular, el bruxismo, las distonías orofaciales, que pueden ser tratados interdisciplinariamente como parte del plan de tratamiento ortodóncico. Para ello en el presente estudio se desarrollaron las principales características químicas de la toxina botulínica, su mecanismo de acción y aplicaciones más importantes en el área de la Estomatología. El uso de la toxina botulínica, independientemente de la especialidad en que tenga aplicaciones para determinado trastorno, demanda un conocimiento exhaustivo de la anatomía de la cara y el cuello, el conocimiento de la acción muscular y la inervación de las diferentes regiones faciales, que son fundamentales para realizar un correcto diagnóstico y tratamiento. En el área de Ortodoncia la toxina botulínica es importante porque se ha evidenciado en numerosas investigaciones que en casos con discrepancia vertical maxilar leve, contribuye en el tratamiento de la sonrisa gingival. Asimismo, en pacientes que requieren tratamiento ortodóncico fijo y que desarrollaron bruxismo, contribuye a mejorar la tonicidad muscular. En el tratamiento de la disfunción temporomandibular, ha evidenciado resultados óptimos. Es por ello que la importancia del presente estudio es conocer la aplicación de la toxina botulínica como alternativa terapéutica en el manejo de condiciones que puede presentar el paciente ortodóncico y que demandan una atención interdisciplinaria.In a century in which alternative treatments are indicated more frequently, botulinum toxin represents the most potent biological toxin known to date. Botulinum toxin is produced by Clostridium Botulinium, an anaerobic Gram positive bacterium. Among all the types of botulinum toxin that are used, type A is the most widely used in therapeutic trials in humans, and has become the treatment of choice for multiple pathologies, such as blepharospasm, hemifacial spasm, cervical dystonia. and laryngeal dystonia. It also constitutes a therapeutic alternative in Stomatology, being applied in the treatment of oromandibular dystonia and in the management of facial pain. The present investigation deals with the knowledge and discussion of the use of botulinum toxin in the treatment of pain temporomandibular dysfunction, bruxism, orofacial dystonia, which can be treated interdisciplinarily as part of the orthodontic treatment plan. To this end, in the present study the main chemical characteristics of botulinum toxin, its mechanism of action and most important applications in the area of Stomatology were developed. The use of botulinum toxin, regardless of the specialty in which it has applications for a particular disorder, demands a thorough knowledge of the anatomy of the face and neck, the knowledge of the muscular action and the innervation of the different facial regions, which are fundamental to make a correct diagnosis and treatment. In the area of Orthodontics botulinum toxin is important because it has been shown in numerous investigations that in cases with slight vertical maxillary discrepancy, it contributes in the treatment of the gingival smile. Also in patients who require fixed orthodontic treatment and who developed bruxism, it contributes to improve muscle tone. In the treatment of temporomandibular dysfunction, has shown optimal results. That is why the importance of this study is to know the application of botulinum toxin as a therapeutic alternative in the management of conditions that can present the orthodontic patient and that demand an interdisciplinary attention