Genipa americana L. GEOGRAPHIC OCCURRENCE IN BRAZIL

Genipa americana is a well-recommended tree species for the restoration of degraded areas, and it is necessary to understand which soil and climate variables determine its occurrence and in which environments it would become better adapted. The objective of this work was to survey the occurrence of Genipa americana in Brazil and the edaphoclimatic and vegetation variables' influence on its distribution. For this, the survey was carried out using the NeoTropTree database, using 19 environmental variables for the study. The data were submitted to principal component analysis in RStudio, with the factoextra and ggplot2 packages. The main variables from this analysis were applied in the map elaboration with the ArcMap 10.5 program. In the geographic occurrence analysis of 3,916 site results for Brazil, the species G. americana was present in 20.9% of the sites. The predominant biome in the species occurrence in the country was the Amazon, concentrating 38.9% of the sites. Regarding environmental limits, it is clear that the lower the temperature, the lower the chance of the species occurrence. The species is well adapted to high temperatures, annual rainfall ranging from 1,000 to 2,500 mm, and low reliefs. With climate change imminent, it could be used to restore warm regions. However, sites currently dry or threatened with becoming more arid over the years are unsuitable for the species

On the Dirac delta as initial condition for nonlinear Schr\"odinger equations

In this article we will study the initial value problem for some Schr\"odinger equations with Diraclike initial data and therefore with infinite L2 mass, obtaining positive results for subcritical nonlinearities. In the critical case and in one dimension we prove that after some renormalization the corresponding solution has finite energy. This allows us to conclude a stability result in the defocusing setting. These problems are related to the existence of a singular dynamics for Schr\"odinger maps through the so called Hasimoto transformation.Comment: 17 pages, to appear in in AnIHP Ann Non Li

ADMINISTRATIVE PANEL FOR E-COMMERCE

This application aims to implement an administrative panel for electronic commerce, so that people who do not have advanced knowledge can use it and that it is fast and makes use of modern technologies. With simple and intuitive usability, containing the essential resources for managing a virtual store and that can be used both in desktop environments and in mobile environments, a user can manage their products, their orders and their customers through the administrative panel. Using modern and easy-to-maintain technologies and the creation of new resources, this application is easily scalable and customizable, given that the architecture standard used is MVC (Model-View-Control), and also has a library of tests that verify correct operation. of the main functionalities of the application

Inter- and intracontinental migrations and local differentiation have shaped the contemporary epidemiological landscape of canine parvovirus in South America

Canine parvovirus (CPV) is a fast-evolving single-stranded DNA virus that causes one of the most significant infectious diseasesof dogs. Although the virus dispersed over long distances in the past, current populations are considered to be spatiallyconfined and with only a few instances of migration between specific localities. It is unclear whether these dynamicsoccur in South America where global studies have not been performed. The aim of this study is to analyze the patterns ofgenetic variability in South American CPV populations and explore their evolutionary relationships with global strains.Genomic sequences of sixty-three strains from South America and Europe were generated and analyzed using a phylodynamicapproach. All the obtained strains belong to the CPV-2a lineage and associate with global strains in four monophyleticgroups or clades. European and South American strains from all the countries here analyzed are representative of awidely distributed clade (Eur-I) that emerged in Southern Europe during 1990?98 to later spread to South America in theearly 2000s. The emergence and spread of the Eur-I clade were correlated with a significant rise in the CPV effective populationsize in Europe and South America. The Asia-I clade includes strains from Asia and Uruguay. This clade originated in Asia during the late 1980s and evolved locally before spreading to South America during 2009?10. The third clade (Eur-II)comprises strains from Italy, Brazil, and Ecuador. This clade appears in South America as a consequence of an early introductionfrom Italy to Ecuador in the middle 1980s and has experienced extensive local genetic differentiation. Some strainsfrom Argentina, Uruguay, and Brazil constitute an exclusive South American clade (SA-I) that emerged in Argentina in the1990s. These results indicate that the current epidemiological scenario is a consequence of inter- and intracontinentalmigrations of strains with different geographic and temporal origins that set the conditions for competition and local differentiationof CPV populations. The coexistence and interaction of highly divergent strains are the main responsible for thedrastic epidemiological changes observed in South America in the last two decades. This highlights the threat of invasionfrom external sources and the importance of whole-genome resolution to robustly infer the origin and spread of new CPVvariants. From a taxonomic standpoint, the findings herein show that the classification system that uses a single aminoacid to identify variants (2a, 2b, and 2c) within the CPV-2a lineage does not reflect phylogenetic relationships and is not suitableto analyze CPV evolution. In this regard, the identification of clades or sublineages within circulating CPV strains is thefirst step towards a genetic and evolutionary classification of the virus.Fil: Grecco, Sofia. Universidad de la República; UruguayFil: Iraola, Gregorio. Universidad de la República; UruguayFil: Decaro, Nicola. Università degli Studi di Bari; ItaliaFil: Alfieri, Alice. Universidade Estadual de Londrina; BrasilFil: Alfieri, Amauri. Universidade Estadual de Londrina; BrasilFil: Gallo Calderon, Marina Beatriz. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Instituto de Ciencia y Tecnología "Dr. César Milstein". Fundación Pablo Cassará. Instituto de Ciencia y Tecnología "Dr. César Milstein"; ArgentinaFil: da Silva, Ana Paula. Universidade Estadual de Londrina; BrasilFil: Name, Daniela. Universidad de la República. Facultad de Ciencias; UruguayFil: Aldaz, Jaime. Universidad Estatal de Bolivar; EcuadorFil: Calleros, Lucia. Universidad de la República. Facultad de Ciencias; UruguayFil: Marandino, Ana. Universidad de la República. Facultad de Ciencias; UruguayFil: Gonzalo, Tomas. Universidad de la República. Facultad de Ciencias; Urugua

Qualidade das Imagens de Alta Resolução Geradas por Sensores Aéreos DigitaisImage Quality from High Resolution Airborne Sensors

Os sensores digitais aerotransportados atualmente disponíveis no mercado possuem dois tipos de soluções: a solução de imagens por quadros, que emula a fotografia clássica, e a solução de imagem tipo “pushbroom”, que se caracteriza por uma imagem contínua, gerada a partir de um arranjo linear de sensores, que varrem a cena e possuem capacidade para gerar faixas de imagens pancromáticas, coloridas e de falsa cor com um nível de resolução elevado, compatível com as imagens pancromáticas geradas pelas câmaras convencionais. Neste artigo serão analisadas e discutidas as principais características das imagens geradas por esse tipo de sensor.Abstract The airborne digital sensors available in the market today offer two types of solutions: one emulates the classical frame image and the other is the so called “pushbroom”, which consists of a continuous image, generated by an array of line sensors that sweep the scene, generating pixel carpets of high resolution, equivalent to the images generated by film cameras, and with panchromatic, color, and near infrared bands of various perspectives. In this article, we analyze the characteristics of the images generated by this type of sensor

Cidade e ensino de Geografia: Contribuição a uma Educação Geográfica da e para a cidade

Dissertação apresentada ao Programa de Pós- Graduação: Mestrado em Geografia da Fundação Universidade Federal de Rondônia (UNIR) como requisito final para a obtenção do título de Mestre em Geografia. Orientador: Prof. Dr. Nilson Santos.Esta dissertação apresenta como foco central de interesse: a cidade como objeto pedagógico para o ensino de geografia nas 5ª e 6ª séries do ensino fundamental. O interesse principal é saber em que medida o ensino de geografia pode contribuir na formação da cidadania, dialogando a partir dos significados e as representações sociais que os alunos atribuem a determinados conceitos geográficos em relação à cidade onde se encontram inseridos. A pesquisa é um estudo de abordagem qualitativa que tem como objetivo analisar as dimensões educativas da cidade a partir das interpretações dos alunos e entender de que forma a escola e o professor podem transpô-las no processo educativo. Para buscar estes objetivos fiz observações em quatro salas de aulas de Geografia em duas escolas na cidade de Alta Floresta D’Oeste, questionário com 59 alunos, entrevistas com quatro alunos e cinco professores e três seqüência didática envolvendo todos os alunos das quatro turmas. As representações sociais foi o suporte teórico e metodológico para a compreensão e análise acerca da construção do conhecimento geográfico pelos alunos. Os resultados da análise apontam a contribuição da cidade para o ensino de geografia vez que os alunos vivenciam este espaço de diferentes formas e esta apresenta-se educativa a partir de três dimensões - aprender a cidade, aprender na cidade e aprender da cidade. Assim, a aprendizagem escolar ancora-se na percepção da realidade concreta e vivida das relações entre os diversos elementos que compõem o espaço geográfico, buscando soluções para os problemas, atuando ativamente, constituindo-se em cidadãos no meio em que vivem. Uma educação geográfica a partir do espaço vivido

Manobras: desempenho operacional de colhedoras de cana-de-açúcar

Sugarcane is among the main crops that compose Brazilian’s agribusiness. Therefore, cropping has a significant economic and social role, as production increases yearly. Currently, in Brazil, the mechanized harvest of sugarcane is growing fast in most of the country. The improvement in the harvester’s performance allows for fewer expenses and a higher operating yield. This study aimed to analyze the correlation between fuel consumption and maneuvering time of sugarcane harvesters in three different areas (W1 > 20 ha, 10 ha < W2< 20 ha, and W3 < 10 ha). Were calculated fuel consumption per maneuver in each area and analyzed how this value can change due to the tracks' spatial variability combined with the machine's hourly consumption. Based on the variable maneuvering time results and consumption per maneuver, the treatment W3 was the one that obtained the lowest fuel consumption with the T maneuver, due to the shorter mean maneuvering time, besides the more significant available track space to perform them. So that is the best configuration that aims at more significant savings in production cost.A cana-de-açúcar está entre as principais culturas que compõem o agronegócio brasileiro. A cultura tem um papel econômico e social significativo, uma vez que a produção aumenta a cada ano. Atualmente, no Brasil, a colheita mecanizada de cana de açúcar está crescendo rapidamente na maior parte do país. A melhoria no desempenho da colhedora permite menos despesas e um maior rendimento operacional. Este estudo teve como objetivo analisar a correlação entre o consumo de combustível e o tempo de manobra das colhedoras de cana em três áreas diferentes (W1 > 20 ha, 10 ha < W2 < 20 ha, e W3 < 10 ha). Foi calculado o consumo de combustível por manobra em cada área e analisado como este valor pode mudar devido à variabilidade espacial das pistas combinadas com o consumo horário da máquina. Com base nos resultados da variável tempo de manobra e consumo por manobra, o tratamento W3 foi o que obteve o menor consumo de combustível com a manobra T, devido ao menor tempo médio de manobra, além do maior espaço disponível nas pistas para realizá-las. Portanto, esta é a melhor configuração que visa uma maior economia no custo de produção.