Navegando por Data de Publicação, começando com "2020-01-21"

Filtrar resultados por ano ou mês

Agora exibindo 1 - 3 de 3

Construções geométricas no ensino da matemática no ensino fundamental
(Universidade Federal de São Carlos, 2020-01-21) Braga, Guilherme Silva; Bertoncello, Luciene Nogueira; https://lattes.cnpq.br/8028970771846775; https://lattes.cnpq.br/6207935785425690
In this work, we will do a study on triangles, their theorems, elements and constructions focused on the teaching of geometry since the early years of elementary school, with the objective of being a support tool for the teacher trained in pedagogy in addition to the specialist teacher in Mathematics. In the first chapter, we will give some definitions and results that we will use throughout the work. In the second chapter we will demonstrate some results and theorems that use triangles or show interesting features in them. In the third chapter, we will make geometric constructions with ruler and compass, describing each one of them, and justifying, when necessary, what we have built. In the fourth chapter, a pedagogical work carried out in a school will be presented, with geometric constructions in elementary school in a 5th grade classroom. Finally, in the fifth chapter we will make some observations and justify the work with a small study of Geometry in the National Common Curricular Base (BNCC) in Elementary School.
Modelos de regressão para dados de contagem k-modificados
(Universidade Federal de São Carlos, 2020-01-21) Garcia, Milene Alves; Conceição, Katiane Silva; https://lattes.cnpq.br/5789619620619667; https://lattes.cnpq.br/8717467108587526
In this work the regression model to k-Modified family distributions is proposed. It is understood as modification, the inclusion of a parameter in the probability mass function of the traditional discrete distributions, which is able to model inflation or deflation of the observation k in the dataset. The modification in relation to the original distribution becomes necessary when, in many practical situations, a specific observation k occurrs in the dataset with higher or lower frequency than what is expected by considering a specific discrete distribution. In the context of regression models, discrete distributions with probability mass function that can be written through their means will be considered.
Crowdfunding de investimento para viabilização de novos negócios no Brasil
(Universidade Federal de São Carlos, 2020-01-21) Hassem, Alina; Silva, Elaine da; https://lattes.cnpq.br/7336831085564832; Ferrari Júnior, Roberto ; https://lattes.cnpq.br/1581806209106850; https://lattes.cnpq.br/6469467546187793
In the development of new businesses, fundraising is one of the most important factors, as only shareholder equity, normally, is not sufficient to fund its expansion. However, traditional sources of financing - such as banks - require collateral in return for the loans, which often cannot be provided by startups. Venture capitalists and private equities become real options for some companies that have a return on investment. Crowdfunding is a form of online fundraising, where the entrepreneur asks for an open call on the internet, and the crowd can contribute or invest in the project or companies - usually of low value - that, when together, make the business viable. There are four types of crowdfunding currently classified according to the return offered to the investor: donation, rewards, loan and investment. Equity crowdfunding, regulated by the Brazilian Securities Commission (CVM) in 2017, is a form in which the entrepreneur offers companies shares in return for the investments received, thus making it possible for the development of new businesses. Thus, the current research analyzed the profile of companies that are using equity crowdfunding to raise funds in order to answer the following question: How has investment crowdfunding been impacting the development of new companies? This is a qualitative and quantitative investigation in which the content analysis method was applied. Results indicate that investment crowdfunding has, in fact, become a new source of capital for startups, since the average age of the analyzed companies is three years, and the most common segment is service, especially those companies that rely on the internet (websites and applications). The total amount of money raised from 2017 to 2018 was BRL 22,602,340 in 30 different campaigns (29 companies) with the participation of 2,345 investors. By comparing these results are compared with the volumes contributed by venture capital investors and angel investors, we can see that investment crowdfunding is still in its infancy. Nonetheless, the prospects for developing this market are promising.