Preditores socio-demográficos, clínicos e de saúde oral auto-percebida nos idosos

Poster apresentado nas XXIV Jornadas Internacionais de Medicina Dentária do ISCSEM, 4-5 Março 2015, Egas Moniz, Caparica, Portugal

Disordered Bose Einstein Condensates with Interaction in One Dimension

We study the effects of random scatterers on the ground state of the one-dimensional Lieb-Liniger model of interacting bosons on the unit interval in the Gross-Pitaevskii regime. We prove that Bose Einstein condensation survives even a strong random potential with a high density of scatterers. The character of the wave function of the condensate, however, depends in an essential way on the interplay between randomness and the strength of the two-body interaction. For low density of scatterers or strong interactions the wave function extends over the whole interval. High density of scatterers and weak interaction, on the other hand, leads to localization of the wave function in a fragmented subset of the interval

Qualidade e segurança de morangos produzidos em diferentes sistemas de produção.

Visando comparar a qualidade do morango em função do tipo de cultivo, foram avaliados frutos dos seguintes sistemas: Convencional que não é regido por normas específicas; Produção Integrada de Morango (PIMo), e Produção Orgânica que emprega normas técnicas específicas de cultivo. Utilizou-se fruto in natura de morangueiros das variedades Oso Grande e Camino Real. Os frutos foram adquiridos já embalados em bandejas de tereftalato de polietileno (PET) com capacidade de 300 a 400 g, no local de produção. Os produtos do sistema orgânico e PIMo foram comprovados por certificação. Os morangos foram armazenados em condição ambiente (23 ± 2 ºC e 65 ± 5 % UR), e avaliados quanto ao padrão de qualidade pós-colheita (aparência,características físico-quimicas, incidência de podridões e resíduo de defensivos). Observou-se que os produtores PIMo e orgânicos estão empenhados com boas práticas agrícolas. Os produtos do sistema convencional apresentaram resíduos de produtos não autorizados para a cultura e falha no manuseio pós-colheita. As características físicoquímicas dos morangos não diferiram entre os três sistemas

Continuous Prediction with Experts' Advice

Prediction with experts' advice is one of the most fundamental problems in online learning and captures many of its technical challenges. A recent line of work has looked at online learning through the lens of differential equations and continuous-time analysis. This viewpoint has yielded optimal results for several problems in online learning. In this paper, we employ continuous-time stochastic calculus in order to study the discrete-time experts' problem. We use these tools to design a continuous-time, parameter-free algorithm with improved guarantees for the quantile regret. We then develop an analogous discrete-time algorithm with a very similar analysis and identical quantile regret bounds. Finally, we design an anytime continuous-time algorithm with regret matching the optimal fixed-time rate when the gains are independent Brownian Motions; in many settings, this is the most difficult case. This gives some evidence that, even with adversarial gains, the optimal anytime and fixed-time regrets may coincide.Comment: 30 pages, 1 figure. Version 2 diff: minor edits, reorganization for a journal submission, correct statement of Lemma 5.1 and a better formatted proof of the same lemm

Identifying social participation subgroups of individuals with severe mental illnesses:a latent class analysis

Purpose To investigate factors that influence participation in and needs for work and other daytime activities among individuals with severe mental illnesses (SMI). Methods A latent class analysis using routine outcome monitoring data from 1069 patients was conducted to investigate whether subgroups of individuals with SMI can be distinguished based on participation in work or other daytime activities, needs for care in these areas, and the differences between these subgroups. Results Four subgroups could be distinguished: (1) an inactive group without daytime activities or paid employment and many needs for care in these areas; (2) a moderately active group with some daytime activities, no paid employment, and few needs for care; (3) an active group with more daytime activities, no paid employment, and mainly met needs for care; and (4) a group engaged in paid employment without needs for care in this area. Groups differed significantly from each other in age, duration in MHC, living situation, educational level, having a life partner or not, needs for care regarding social contacts, quality of life, psychosocial functioning, and psychiatric symptoms. Differences were not found for clinical diagnosis or gender. Conclusions Among individuals with SMI, different subgroups can be distinguished based on employment situation, daytime activities, and needs for care in these areas. Subgroups differ from each other on patient characteristics and each subgroup poses specific challenges, underlining the need for tailored rehabilitation interventions. Special attention is needed for individuals who are involuntarily inactive, with severe psychiatric symptoms and problems in psychosocial functioning

What Makes Your Dog Itch? Maybe It Is the Kennel Tick!

Once upon a time, in a backyard not very far from you, lived a dog named Rex with long fluffy and shiny hair. Rex really loved to play outside, especially with his best friend and owner Jack, a nine-year-old boy. On a perfect spring day, when it was not too cold or too hot, Jack and Rex went for a walk in a green park close by, and when they returned home Jack noticed that his loyal friend was very itchy and was scratching his ear a lot. His first thought was as follows: “Well, there must be some dirt in his ear! After so much rolling on the grass it is normal.” A few days later Jack saw that Rex was very unhappy and started wondering what was happening. He called his mother quickly and they both rushed to see Rex. “Mommy what’s that on Rex’s ear? It seems like a wart! Is Rex sick?” Then his mother said “Hopefully not! You know Jack, these little things are parasites called ticks and they can make Rex itch and feel uncomfortable. I am sure that if you learn more about such small and incredible creatures, you will be amazed because there is more to them than meets the eye…”publishersversionpublishe

Expressão fenotípica da miocardiopatia hipertrófica e realce tardio na ressonância magnética cardíaca

INTRODUCTION AND AIM: The prognostic value of late gadolinium enhancement (LGE) for risk stratification of hypertrophic cardiomyopathy (HCM) patients is the subject of disagreement. We set out to examine the association between clinical and morphological variables, risk factors for sudden cardiac death and LGE in HCM patients. METHODS: From a population of 78 patients with HCM, we studied 53 who underwent cardiac magnetic resonance. They were divided into two groups according to the presence or absence of LGE. Ventricular arrhythmias and morbidity and mortality during follow-up were analyzed. RESULTS: Patients with LGE were younger at the time of diagnosis (p=0.046) and more often had a family history of sudden death (p=0.008) and known coronary artery disease (p=0.086). On echocardiography they had greater maximum wall thickness (p=0.007) and left atrial area (p=0.037) and volume (p=0.035), and more often presented a restrictive pattern of diastolic dysfunction (p=0.011) with a higher E/É ratio (p=0.003) and left ventricular systolic dysfunction (p=0.038). Cardiac magnetic resonance supported the association between LGE and previous echocardiographic findings: greater left atrial area (p=0.029) and maximum wall thickness (p<0.001) and lower left ventricular ejection fraction (p=0.056). Patients with LGE more often had an implantable cardioverter-defibrillator (ICD) (p=0.015). At follow-up, no differences were found in the frequency of ventricular arrhythmias, appropriate ICD therapies or mortality. CONCLUSIONS: The presence of LGE emerges as a risk marker, associated with the classical predictors of sudden cardiac death in this population. However, larger studies are required to confirm its independent association with clinical events