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Development and validation of a morphological model for multiple sediment classes

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International Journal of Sediment Research 2017年第4期32卷 585-596页

作者： guilherme Franz Paulo Leit?o Lígia Pinto Eduardo Jauch Luís Fernandes Ramiro neves Maretec Instituto Superior TécnicoUniversidade de Lisboa Hidromod Rua Rui Teles Palhinha Action Modulers Estrada Principal

The complexity of sediment dynamics in aquatic systems can be better understood by applying numerical models. The development of a comprehensive morphological model is presented in this *** model aims to predict the sediment transport and bed evolution in natural systems composed of different sediment types. The morphological model was implemented in MOHID, a modelling system that solves the three-dimensional hydrodynamics and advection-diffusion transport of suspended sediments. Multiple sediment classes were taken into account(non-cohesive and cohesive) considering the effects of sediment mixtures and bed consolidation on resistance to erosion. To represent bottom stratigraphy, the bottom column can be divided into several layers. The key points of the simulated processes are discussed in this paper. Model results are assessed in six test cases through comparison with analytic solutions or experimental data. The outcomes demonstrate the model's capacity to simulate the transport dynamics of non-cohesive and cohesive sediments. The speed up of morphological changes by an acceleration factor permitted modelling bed evolution for long time ***, a test case for the Tagus Estuary demonstrated the model's capacity for generating realistic sediment distribution based on the local hydrodynamic conditions. Limitations in the availability of bed composition data can be overcome by considering a warm-up run to provide realistic initial conditions for further predictions of morphological developments.

关键词： Sediment transport Sand-mud mixtures Morphodynamics Large-scale models MOHID modelling system

Delay Times and Clinical Outcomes in Acute Myocardial Infarction: Comparison of Periods before and during the COVID-19 Pandemic—Myocardial Infarction and the Pandemic

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World Journal of Cardiovascular Diseases 2024年第6期14卷 392-400页

作者： Clarice Teixeira Silva Araújo Arnon Salviato Mameri Thúlio Carrera Guarçoni Venturini Marcus Tadeu Aguilar Constantino Matos Igor Morais Araujo Lopes Luiz Gustavo Ribeiro de Carvalho Murad Cleberson Duartes Ovani guilherme Vassalo Morais Fernanda Venturini de Castro Danielle Lopes Rocha Lucas Crespo de Barros Rodolfo Costa Sylvestre Luiz Fernando Machado Barbosa Roberto Ramos Barbosa Internal Medicine Universidade Federal do Esprito Santo (UFES) Vitria Brazil Hospital Santa Casa de Misericrdia de Vitria Vitria Brazil Hospital Santa Rita de Cssia Vitria Brazil Hospital Estadual Dr. Jayme Santos neves Serra Brazil Grupo Kora Sade Vitria Brazil Hospital Estadual Infantil e Maternidade Alzir Bernardino Alves (HIMABA) Vila Velha Brazil

Introduction: At the beginning of the COVID-19 pandemic, a drop in the number of patients treated for cardiac emergencies raised concern about cardiovascular mortality in that period. An increase in care delay for patients with ST-segment elevation myocardial infarction (STEMI) may have affected clinical outcomes. Objectives: To analyze delay times and clinical outcomes of patients with STEMI undergoing primary percutaneous coronary intervention (PPCI), before and during the COVID-19 pandemic. Methods: Retrospective observational study that included patients with STEMI undergoing PPCI from December 2018 to July 2021. The COVID-19 pandemic cases were divided into two groups: pandemic I—from March to August 2020;and pandemic II—from September 2020 to July 2021. Patients were compared according to the period of hospitalization. Primary outcomes were delay times in assistance and clinical outcomes (acute kidney injury [AKI], post-procedural vascular complications and in-hospital mortality). Results: 108 patients were included, 39 (36.1%) in the pre-pandemic period, 13 (12.1%) in pandemic I and 56 (51.8%) in pandemic II. Time from onset of symptoms to arrival at the service and door-to-balloon time did not differ significantly among groups. Vascular complications were more frequent during the pandemic (I and II) than in the pre-pandemic period (2.5% pre-pandemic vs 15.4% pandemic vs 12.5% pandemic II;p = 0.03). AKI incidence was similar in all three periods. There was a non-significant increase in in-hospital mortality during the COVID-19 pandemic. Conclusion: In patients with STEMI, there was an increase in vascular complications and a trend toward increased mortality during the COVID-19 pandemic. Delay times to admission and reperfusion did not differ significantly between before and during the pandemic.

关键词： Myocardial Infarction Primary Percutaneous Coronary Intervention Coronary Reperfusion Pandemic COVID-19

Spatial Data Mining to Support Environmental Management and Decision Making--A Case Study in Brazil

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Computer Technology and Application 2014年第1期5卷 25-32页

作者： Carlos Roberto Valencio Fernando Tochio Ichiba guilherme Priollli Daniel Rogeria Cristiane Gratao de Souza Leandro Alves neves Angelo Cesar Colombini Department of Computer Science and Statistics Sao Paulo State University Sao Paulo 15054-000 Brazil

The growth of geo-technologies and the development of methods for spatial data collection have resulted in large spatial data repositories that require techniques for spatial information extraction, in order to transform raw data into useful previously unknown information. However, due to the high complexity of spatial data mining, the need for spatial relationship comprehension and its characteristics, efforts have been directed towards improving algorithms in order to provide an increase of performance and quality of results. Likewise, several issues have been addressed to spatial data mining, including environmental management, which is the focus of this paper. The main original contribution of this work is the demonstration of spatial data mining using a novel algorithm with a multi-relational approach that was applied to a database related to water resource from a certain region of S^o Paulo State, Brazil, and the discussion about obtained results. Some characteristics involving the location of water resources and the profile of who is administering the water exploration were discovered and discussed.

关键词： Water resource management spatial data mining multi-relational spatial data mining spatial clustering environmentalmanagement.

Estimation of Genetic Parameters of Turiacu Pineapple Clones and Genetic Correlation between Traits

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Agricultural Sciences 2017年第11期8卷 1253-1262页

作者： guilherme Barbosa Abreu Marcos Miranda Toledo Marcelo Mattos Cavallari Jose Ribamar Gusmao Araujo Antonia Alice Costa Rodrigues Luiz Gustavo de Lima Melo Augusto Cesar Vieira neves Junior Embrapa Cocais(CPACP) Sao LuisBrazil Embrapa Pecuária Sudeste(CPPSE) Sao CarlosBrazil Universidade Estadual do Maranhao(UEMA) Sao LuisBrazil Universidade Federal Rural de Pernambuco(UFRPE) RecifeBrazil

This study aimed to estimate genetic parameters of Turiaçu pineapple clones using mixed models;and estimate genetic correlation coefficient between traits, to provide important information to breeding programs. For this, 19 pineapple plants were visually selected and its slips were collected and planted in a single environment and nine traits were evaluated. The genetic parameters of most evaluated traits presented significant differences between the 19 clones. Some traits, such as Fusarium wilt resistance, showed high magnitudes of heritability. Clones did not differ in relation to total titratable acidity (TTA) and total soluble solids (TSS). However, these traits, which have implications to fruit quality, showed to be negatively correlated to fruit mass (-0.46 and -0.67). The results indicate that the population of Turiaçu pineapple is suitable for selection, especially for Fusarium wilt resistance. Also, Turiaçu clones can be used in breeding programs of pineapple.

关键词： Quantitative Genetics Plant Breeding Ananas comosus

Case Report: Clinical and Diagnostic Aspects of Mayer-Rokitansky-Kuster-Hauser Syndrome

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Health 2019年第10期11卷 1367-1372页

作者： Lucas Ferreira de Paula Filho guilherme Carolino neves Laís Figueira Bandoli Lucas Caraline de Almeida Coelho Nathália de Souza Ferreira Feital Renan Vieira Murad Ana Luísa Conceiç o de Jesus Diana Aristótelis de Sá Larissa Bianca Cunha de Sá Jonathan Mwambire Alberto Krayyem Arbex IPEMED Medical School/AFYA Educational Postgraduation in Endocrinology Rio de Janeiro Brazil UNIFESO Medical School Teresópolis Brazil Department of Pediatrics Medical School University of So Paulo (USP) So Paulo Brazil Medical Clinic in Endocrinology and Diabetology Schleswig-Flensburg Germany.

Mayer-Rokitansky-Kuster-Hauser Syndrome (MRKH) is a rare disease characterized by total or partial vagina agenesis, karyotype 46, XX with normal secondary sexual characters. Still, it is the second leading cause of primary amenorrhea. The absence of obvious signs and symptoms often causes the syndrome to be diagnosed only after puberty. The case presented here highlights exactly this difficulty of early diagnosis, which meets the objective of the study, and is precisely to provide reliable material that facilitates the diagnosis and management of patients with MRKH syndrome.

关键词： Mayer-Rokitansky-Kuster-Hauser Syndrome Primary Amenorrhea Gonadal Dysgenesis