Construction of topological quantum codes on bidimensional manifolds

Orientadores: Reginaldo Palazzo Junior, Eduardo Brandani da SilvaTese (doutorado) - Universidade Estadula de Campinas, Faculdade de Engenharia Eletrica e de ComputaçãoResumo: Neste trabalho apresentamos um amplo estudo de códigos quânticos topológicos, trazendo inovação para esta área. Inicialmente geramos novos códigos quânticos teóricos, dentre os quais se destaca a classe [[d2,2,d]] cujos parâmetros são os melhores ate então apresentados para este tipo de código. Nesta proposta sistematizamos a construção de códigos teóricos baseados em teoria de grupos e também em analise combinatória. Com respeito aos códigos quânticos topológicos em superfícies com gênero g = 2, apresentamos uma construção baseada em geometria hiperbólica, generalizando a construção de Kitaev. Reproduzimos e ampliamos a classe de códigos quânticos com distancia 3 decorrentes de mergulhos de grafos completos em superfícies com gêneros específicos obtidos primeiramente por Bombin e Martin-Delgado, com o diferencial de descreve-los geometricamente e exibir claramente seus parâmetros. Obtemos uma classe de códigos MDS Maximum Distance Separable). Explicitamos em tabelas os melhores códigos para superfícies com gênero g = 2,3,4 e 5 obtidos a partir dessa construção, e analisamos esses resultadosAbstract: In this work we present an extensive study of topological quantum codes. As a consequence, new promising ideas, concepts and results are also presented. First of all, new toric quantum codes are constructed among which the [[d2,2,d]] class stands out as the best known so far. This proposed construction of toric codes is realized based upon group theory and combinatorial analysis. Regarding the topological quantum codes in surfaces with genus g = 2, we consider a construction method based on hyperbolic geometry and so generalizing Kitaev's construction. We reproduce and enlarge the class of quantum codes with distance 3 as a consequence of the embedding of complete graphs in surface with specific genus. This class was first proposed by Bombin andMartin-Delgado. The latter class is geometrically described and its parameters are explicitly exhibited. We also obtain a class of MDS (Maximum Distance Separable) codes in surfaces with genus g = 2,3,4 and 5, obtained by the proposed construction are tabulated and analyzedDoutoradoTelecomunicações e TelemáticaDoutor em Engenharia Elétric

Algebraic and Geometric Characterizations Related to the Quantization Problem of the C2,8C_{2,8} Channel

In this paper, we consider the steps to be followed in the analysis and interpretation of the quantization problem related to the $C_{2,8}$ channel, where the Fuchsian differential equations, the generators of the Fuchsian groups, and the tessellations associated with the cases $g=2$ and $g=3$, related to the hyperbolic case, are determined. In order to obtain these results, it is necessary to determine the genus $g$ of each surface on which this channel may be embedded. After that, the procedure is to determine the algebraic structure (Fuchsian group generators) associated with the fundamental region of each surface. To achieve this goal, an associated linear second-order Fuchsian differential equation whose linearly independent solutions provide the generators of this Fuchsian group is devised. In addition, the tessellations associated with each analyzed case are identified. These structures are identified in four situations, divided into two cases $(g=2$ and $g=3)$, obtaining, therefore, both algebraic and geometric characterizations associated with quantizing the $C_{2,8}$ channel.Comment: 31 pages, 9 figure

DOENÇAS CRÔNICAS E A BAIXA ADESÃO AO TRATAMENTO FARMACOLÓGICO

Chronic diseases represent a significant global health challenge, characterized by their long duration and continuous impact on quality of life. Low adherence to pharmacological treatment is a recurring problem in this context, affecting therapeutic efficacy and disease progression. This lack of adherence can result from several factors, including complexity of the therapeutic regimen, medication side effects, costs, implications and individual perceptions, forgetfulness, or lack of understanding about the importance of treatment. The effects of low adherence are significant, leading to preventable complications, frequent hospitalizations and an increased burden of morbidity and mortality. Strategies to improve adherence to pharmacological treatment, educational interventions, simplification of medication regimens, use of reminders, social support, and regular monitoring by health professionals. The use of technology, such as apps and electronic devices, has also been shown to be helpful in improving adherence. It is essential that there is a multidisciplinary approach to address low adherence to treatment, involving doctors, pharmacists, psychologists, and other health professionals. Furthermore, creating a supportive environment that considers patients' individual needs and concerns is crucial to promoting effective treatment adherence. In summary, low adherence to pharmacological treatment in chronic diseases represents a significant challenge, affecting therapeutic efficacy and patient prognosis. Strategies that consider the complexity of human behavior and personalized approaches are key to improving adherence, resulting in better health outcomes and quality of life for patients affected by chronic diseases.As doenças crônicas representam um desafio significativo para a saúde global, caracterizado por sua longa duração e impacto contínuo na qualidade de vida. A baixa adesão ao tratamento farmacológico é um problema recorrente nesse contexto, afetando a eficácia terapêutica e a progressão da doença. Essa falta de adesão pode resultar de diversos fatores, incluindo complexidade do regime terapêutico, efeitos colaterais dos medicamentos, custos, implicações e percepções individuais, esquecimento ou falta de entendimento sobre a importância do tratamento. Os efeitos da baixa adesão são significativos, levando a complicações evitáveis, hospitalizações frequentes e um aumento da carga de morbidade e mortalidade. Estratégias para melhorar a adesão ao tratamento farmacológico, intervenções educacionais, simplificação dos regimes de medicação, uso de lembretes, apoio social e acompanhamento regular por profissionais de saúde. O emprego de tecnologia, como aplicativos e dispositivos eletrônicos, também foi mostrado útil na melhoria da adesão. É essencial que haja uma abordagem multidisciplinar para enfrentar a baixa adesão ao tratamento, envolvendo médicos, farmacêuticos, psicólogos e outros profissionais de saúde. Além disso, a criação de um ambiente de suporte que leve em consideração as necessidades e preocupações individuais dos pacientes é crucial para promover uma adesão eficaz ao tratamento. Em resumo, a baixa adesão ao tratamento farmacológico em doenças crônicas representa um desafio significativo, afetando a eficácia terapêutica e o prognóstico dos pacientes. Estratégias que consideram a complexidade do comportamento humano e abordagens personalizadas são fundamentais para melhorar a adesão, resultando em mais bem resultados de saúde e qualidade de vida para os pacientes afetados por doenças crônicas

Núcleos de Ensino da Unesp: artigos 2010: volume 4: as disciplinas escolares, os temas transversais e o processo de educação

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP

Seminário de Dissertação (2024)

Página da disciplina de Seminário de Dissertação (MPPP, UFPE, 2022) Lista de participantes == https://docs.google.com/spreadsheets/d/1mrULe1y04yPxHUBaF50jhaM1OY8QYJ3zva4N4yvm198/edit#gid=

Implementation of a Brazilian Cardioprotective Nutritional (BALANCE) Program for improvement on quality of diet and secondary prevention of cardiovascular events: A randomized, multicenter trial

Background: Appropriate dietary recommendations represent a key part of secondary prevention in cardiovascular disease (CVD). We evaluated the effectiveness of the implementation of a nutritional program on quality of diet, cardiovascular events, and death in patients with established CVD. Methods: In this open-label, multicenter trial conducted in 35 sites in Brazil, we randomly assigned (1:1) patients aged 45 years or older to receive either the BALANCE Program (experimental group) or conventional nutrition advice (control group). The BALANCE Program included a unique nutritional education strategy to implement recommendations from guidelines, adapted to the use of affordable and regional foods. Adherence to diet was evaluated by the modified Alternative Healthy Eating Index. The primary end point was a composite of all-cause mortality, cardiovascular death, cardiac arrest, myocardial infarction, stroke, myocardial revascularization, amputation, or hospitalization for unstable angina. Secondary end points included biochemical and anthropometric data, and blood pressure levels. Results: From March 5, 2013, to Abril 7, 2015, a total of 2534 eligible patients were randomly assigned to either the BALANCE Program group (n = 1,266) or the control group (n = 1,268) and were followed up for a median of 3.5 years. In total, 235 (9.3%) participants had been lost to follow-up. After 3 years of follow-up, mean modified Alternative Healthy Eating Index (scale 0-70) was only slightly higher in the BALANCE group versus the control group (26.2 ± 8.4 vs 24.7 ± 8.6, P <.01), mainly due to a 0.5-serving/d greater intake of fruits and of vegetables in the BALANCE group. Primary end point events occurred in 236 participants (18.8%) in the BALANCE group and in 207 participants (16.4%) in the control group (hazard ratio, 1.15; 95% CI 0.95-1.38; P =.15). Secondary end points did not differ between groups after follow-up. Conclusions: The BALANCE Program only slightly improved adherence to a healthy diet in patients with established CVD and had no significant effect on the incidence of cardiovascular events or death. © 2019 The Author

NEOTROPICAL ALIEN MAMMALS: a data set of occurrence and abundance of alien mammals in the Neotropics

Biological invasion is one of the main threats to native biodiversity. For a species to become invasive, it must be voluntarily or involuntarily introduced by humans into a nonnative habitat. Mammals were among first taxa to be introduced worldwide for game, meat, and labor, yet the number of species introduced in the Neotropics remains unknown. In this data set, we make available occurrence and abundance data on mammal species that (1) transposed a geographical barrier and (2) were voluntarily or involuntarily introduced by humans into the Neotropics. Our data set is composed of 73,738 historical and current georeferenced records on alien mammal species of which around 96% correspond to occurrence data on 77 species belonging to eight orders and 26 families. Data cover 26 continental countries in the Neotropics, ranging from Mexico and its frontier regions (southern Florida and coastal-central Florida in the southeast United States) to Argentina, Paraguay, Chile, and Uruguay, and the 13 countries of Caribbean islands. Our data set also includes neotropical species (e.g., Callithrix sp., Myocastor coypus, Nasua nasua) considered alien in particular areas of Neotropics. The most numerous species in terms of records are from Bos sp. (n = 37,782), Sus scrofa (n = 6,730), and Canis familiaris (n = 10,084); 17 species were represented by only one record (e.g., Syncerus caffer, Cervus timorensis, Cervus unicolor, Canis latrans). Primates have the highest number of species in the data set (n = 20 species), partly because of uncertainties regarding taxonomic identification of the genera Callithrix, which includes the species Callithrix aurita, Callithrix flaviceps, Callithrix geoffroyi, Callithrix jacchus, Callithrix kuhlii, Callithrix penicillata, and their hybrids. This unique data set will be a valuable source of information on invasion risk assessments, biodiversity redistribution and conservation-related research. There are no copyright restrictions. Please cite this data paper when using the data in publications. We also request that researchers and teachers inform us on how they are using the data

ISARIC-COVID-19 dataset: A Prospective, Standardized, Global Dataset of Patients Hospitalized with COVID-19

The International Severe Acute Respiratory and Emerging Infection Consortium (ISARIC) COVID-19 dataset is one of the largest international databases of prospectively collected clinical data on people hospitalized with COVID-19. This dataset was compiled during the COVID-19 pandemic by a network of hospitals that collect data using the ISARIC-World Health Organization Clinical Characterization Protocol and data tools. The database includes data from more than 705,000 patients, collected in more than 60 countries and 1,500 centres worldwide. Patient data are available from acute hospital admissions with COVID-19 and outpatient follow-ups. The data include signs and symptoms, pre-existing comorbidities, vital signs, chronic and acute treatments, complications, dates of hospitalization and discharge, mortality, viral strains, vaccination status, and other data. Here, we present the dataset characteristics, explain its architecture and how to gain access, and provide tools to facilitate its use

The value of open-source clinical science in pandemic response: lessons from ISARIC

International audienc