Using functional data models in longevity and mortality hedging: a cross-gender study

Cet essai a pour but d'étudier le risque de longevité dans la population Canadienne et de proposer des solutions de couverture adaptées à un fond de pension. Il se joint à une série de travaux dans le but de créer une ouverture vers un marché liquide et transparant de produits de longevité et/ou de mortalité. Le risque de longevité d'un fond de pension peut être défini comme le risque que ses rentiers vivent plus longtemps que prévu. C'est un réel enjeu pour ces institutions, qui représentent une grande partie du marché financier Canadien. Un marché de produits derivés financiers qui permettent de se couvrir pour ce risque sera de mise étant donné la réalité démographique future du pays. Cet essai a pour but de contribuer à la littérature scientifique en validant la portée possible des modèles de type functional data approach (FDA). Nous allons calibrer les instruments de couverture grâce aux résultats générés par ce modèle et nous allons en tester l'efficacité. Afin d'évaluer la pertinence des moyens de couvertures, nous présenterons des forwards et des options, sur des sous-jacents comme les taux de mortalité et les taux de survie. Nous faisons une étude sur des portefeuilles unicohortes, multicohortes et sur un portefeuille de rentiers mixte. Nos résultats démontrent tous une amélioration par rapport à nos mesures de risque, soit une diminution de l'écart-type, de la valeur à risque et de la perte espérée. Il faut noter que la majorité de cette étude a été travaillée avant la pandémie de la COVID-19 de 2020-2021. L'excès de mortalité durant la pandémie pour des âges pertinents à des fonds de pensions sera un facteur important à considérer lors de travaux futurs

Uma experiência em comunidade de investigação filosófica com crianças de 3, 4 e 5 anos

O estudo que se segue foi desenvolvido no âmbito da unidade curricular de Prática de Ensino Supervisionada, lecionada no curso de Mestrado em Educação Pré-Escolar, no ano letivo de 2018/2019, na Universidade do Algarve. A investigação foi realizada numa Instituição Particular de Solidariedade Social, no concelho de Loulé, com crianças de idades compreendidas entre os 3, 4 e 5 anos. Observações iniciais sobre o grupo revelaram comportamentos que despertaram a atenção: dificuldade em conduzir o diálogo, nomeadamente criança-criança, e de expor determinada ideia; dificuldade em esperar pala sua vez para falar; falta de autonomia enquanto aprendente e elemento de um grupo. Foi notória a falta de autonomia nas suas ações do dia a dia, demonstrando uma forte dependência da opinião e intervenção da pessoa adulta. Observações que levaram à procura dos contributos da Filosofia para Crianças e à prática de sessões em comunidade de investigação filosófica com uma amostra do grupo de crianças. Participaram no estudo 24 crianças com idades compreendidas entre os 3, 4 e 5 anos, divididas em dois grupos: grupo experimental constituído por 13 crianças que fizeram parte de 9 sessões de filosofia para crianças que tiveram lugar entre os meses de novembro do ano 2018 e fevereiro do ano 2019; grupo de controlo constituído por 11 crianças que não participaram em sessões de filosofia para crianças. Comportamentos registados das crianças do grupo experimental foram comparados a comportamentos das crianças do grupo de controlo. O estudo é de natureza qualitativa. Para o seu desenvolvimento recorreu-se à recolha de dados através de: observação direta, notas de campo, inquéritos por questionário dirigidos às famílias, inquéritos por entrevista dirigidos à educadora cooperante e às crianças. Os resultados da análise dos dados recolhidos propõe benefícios das práticas de sessões de filosofia para crianças com crianças de idade pré-escolar, mostrando que o contacto com a mesma proporciona mudanças a nível comportamental e social: relação com o próximo enquanto elemento de um grupo, autovalorização enquanto pessoa responsável pelos seus atos.The following study was developed within the scope of the Supervised Teaching Practice curricular unit, taught in the Pre-School Education Master's course, in the academic year 2018/2019, at the University of Algarve. The investigation was carried out at a Private Institution of Social Solidarity, in the city of Loulé, with children aged between 3, 4 and 5 years. Initial observations about the group revealed behaviors that deserved attention: difficulty in conducting dialogue, namely child-child, and to expose a given idea; difficulty waiting for your turn to speak; lack of autonomy as a learner and member of a group. The lack of autonomy in their day-to-day actions was evident, demonstrating a strong dependence on the opinion and intervention of the adult person. Evidence that led to the search for the benefits of Philosophy for Children and the practice of sessions in a philosophical research community with a sample of the group of children. Twenty-four children aged between 3, 4 and 5 years participated in the study, divided into two groups: an experimental group consisting of 13 children who took part in 9 philosophy sessions for children that took place between November of the year 2018 and February of the year 2019; control group consisting of 11 children who did not participate in children's philosophy sessions. Registered behaviors of children in the experimental group were compared to behaviors of children in the control group. The study is of a qualitative nature. For its development, data collection was used through: direct observation, field notes, questionnaire surveys directed at families, interview surveys directed at the cooperating educator and children. The results of the analysis of the collected data propose benefits of the practice of philosophy sessions for children with children of preschool age, showing that the contact with the same provides changes in the behavioral and social level: relationship with the neighbor as a member of a group, self-worth as a person responsible for their actions

Opciones de reclamación de responsabilidad: estudio de un caso de agresión entre trabajadores de diferentes países.

Treballs Finals de Grau de Dret. Universitat de Barcelona. Curs: 2014-2015. Tutor: Joaquim Forner DelayguaEl propósito del presente estudio es el análisis de las responsabilidades derivadas de un incidente entre dos conductores en un pueblo de la provincia de Almería. Se presenta, principalmente, desde la perspectiva del ofendido, contemplando las diferentes opciones que se le presentan para poder ser resarcido de los daños sufridos en el ejercicio de su trabajo

Optimal sampling and estimation strategies under the linear model

In some cases model-based and model-assisted inferences can lead to very different estimators. These two paradigms are not so different if we search for an optimal strategy rather than just an optimal estimator, a strategy being a pair composed of a sampling design and an estimator. We show that, under a linear model, the optimal model-assisted strategy consists of a balanced sampling design with inclusion probabilities that are proportional to the standard deviations of the errors of the model and the Horvitz-Thompson estimator. If the heteroscedasticity of the model is ‚fully explainable' by the auxiliary variables, then this strategy is also optimal in a model-based sense. Moreover, under balanced sampling and with inclusion probabilities that are proportional to the standard deviation of the model, the best linear unbiased estimator and the Horvitz-Thompson estimator are equal. Finally, it is possible to construct a single estimator for both the design and model variance. The inference can thus be valid under the sampling design and under the mode

Mobile Web applications

This document presents the work that was elaborated at the company Present Technologies as part of the academic discipline Internship/Industrial Project for the Master’s degree in Informatics and Systems, Software Development branch, at Instituto Superior de Engenharia de Coimbra. The area of the mobile web applications has grown exponentially over the last few years turning it into a very dynamic field where new development platforms and frameworks are constantly emerging. Thus, the internship consisted in the study of two new mobile operating systems, Tizen and Firefox OS, as well as two frameworks for packaging of mobile web applications – Adobe PhoneGap and Appcelerator Titanium. These platforms are in the direct interest of Present Technology since it pretends to use them in its future projects in general and in the Phune Gaming project in particular. Since Television is one of the Present Technologies’ business areas, during the course of the internship it was decided to perform additionally a study of two Smart TV platforms, namely Samsung Smart TV and Opera TV, which was considered as a valuable knowledge for the company. For each of the platforms was performed a study about its architecture, supported standards and the development tools that are provided, nevertheless the focus was on the applications and for this reason a practical case study was conducted. The case studies consisted in the creation of a prototype or packaging of an application, for the case of the packaging tools, in order to prove the feasibility of the applications for the Present Technologies’ needs. The outcome of the work performed during the internship is that it raised the awareness of Present Technology of the studied platforms, providing it with prototypes and written documentation for the platforms’ successful usage in future projects

Place of Physical Factors in an Ankle Sprain

Introduction: Distortions of the talocrural joint occur as a result of a sudden, short-term displacement of the articular surfaces that exceeds the normal range of motion in the joint. It is accompanied by a partial rupture of the joint capsule and ligaments and hemorrhage in the joint and surrounding soft tissues. It is clinically manifested by edema, hematoma, and pain in the normal range of ankle joint motion. The therapeutic approach is determined depending on the duration of the sprain. Traditional treatment in the early stage of an ankle sprain includes cryotherapy, compression dressings, and elevation of the affected limb. In the subacute and chronic stages, the range of physical means used is expanded.Aim: To review and evaluate existing treatment options for ankle sprains.Materials and methods: Analysis of literature sources.Results: The review of the scientific literature proved the therapeutic value of the considered physical factors, revealing their significance in the complex treatment of ankle joint distortion and supporting the faster recovery of the patient after the acute pain syndrome as well as the return of normal activities of daily life.Conclusion: Physical factors play an important role in the treatment of ankle sprains, as they significantly increase the effectiveness of treatment, shorten the recovery period, and prevent the process from becoming chronic and complications from occurring

The Place of Physical Factors in Prophylaxis and Treatment of Cervical Osteochondrosis

Cervical osteochondrosis is a degenerative disease of the intervertebral discs of the spine. The highest frequency of this pathology is registered between the fourth and fifth decades of a human’s life. The pain and hypoesthesia in the back of the head and neck, often radiating to one or both arms, as well as the limited range of motion, sometimes accompanied by vertigo, tinnitus, and visual disturbances, are symptoms connected with the disease. All of this leads to reduced quality of life and psycho-emotional changes, which are the causes of reduced work performance in the affected people. The complex conservative treatment approach for this pathology includes drug and non-drug therapies. The former are included in the acute period, and non-drug therapy is mandatory in the subacute and chronic stages and also forms the basis of disease prevention. Conservative non-drug treatment is carried out through physical factors.Goal: To present the contemporary abilities of physical factors in the treatment and prophylaxis of cervical osteochondrosis.Materials and methods: Analysis of literature on the subject.Results: The review of scientific literature reveals that physical factors have a significant role in the complex treatment of cervical osteochondrosis and contribute to faster patient recovery after the acute pain syndrome, as well as the maintenance of better trophic conditions and the slowdown of the processes of degeneration of the cervical spine.Conclusion: Precisely applied physical therapy contributes to increased efficiency of the treatment, reduces recovery time, has a long-lasting effect, and reduces the chance of relapse. It has an important place in the prophylaxis of cervical osteochondrosis