São Paulo Federal Institute of Education, Science and Technology

About: São Paulo Federal Institute of Education, Science and Technology is a education organization based out in São Paulo, Brazil. It is known for research contribution in the topics: Context (language use) & Computer science. The organization has 1707 authors who have published 2374 publications receiving 11333 citations.

Telecollaboration and genres: a new perspective to understand language learning

Abstract: The purpose of this paper is to investigate the first 15 minutes of ten initial Teletandem Oral Sessions (iTOS), which means the first virtual encounter among speakers of different languages who want to study the each other’s language. Our aim is to verify iTOS genre status within a telecollaborative learning environment. We understand genres as communicative events organized in standard structures used by members of a discourse community to achieve their communicative purposes (Swales, 1990) and assume that the teletandem context is composed of a specific community with shared objectives. A study of iTOS had first been proposed by Aranha (2014), who analyzed nine iTOS and identified some recurrence in their discoursal structure. Our data, ten iTOS, are part of a previous version of MulTeC (Multimodal Teletandem Corpus) (Aranha & Lopes, forthcoming) and participants are proficient in Portuguese and English. The video files were transcribed and the sessions were analyzed based on Aranha’s (2014) findings. We identified rhetorical organization for the sessions which was similar to Aranha’s, but varied depending on the learning scenarios, i.e. the learning context in which they occurred.

Evasão e qualidade em instituições de ensino superior privadas: uma análise da economia dos custos de transação

Abstract: Recent government incentives have subsidized students’ entry to private Higher Education Institutions (HEIs) in Brazil. This policy reduces the financial motivation that contributes to evasion, which affects the financial viability of private HEIs. Thus, private institutions have to manage elements that affect their economic viability, as is the case with evasion. Adjusting their resources may lead to a reduction in the quality offered by HEIs. The objective of this paper is to verify the relationship between evasion and the quality of the education offered in private higher education. The Transaction Cost Economics (TCE) hypothesis argues that private institutions reduce their quality due to evasion as an efficiency adjustment reaction. Regression was used on the IGC [General Course Index] (a quality scale employed by the Brazilian government) as a predictor of evasion. The results support the existence of a negative linear relationship between quality and evasion, illustrating the risks of increasing the offer of quality higher education by indiscriminately increasing places in private institutions.

Moments of (in)hospitality in cosmopolitan cities

Abstract: The aim of the study is to look at cosmopolitan cities searching for moments of hospitality that take place in cosmopolitan spaces. These moments are understood as the time when acts eliminate socially built barriers and anonymity by making people closer to the establishment of relationships that may result in effective bonds (temporary or long-lasting). Photoethnography was used; 421 photographic records were taken in the five largest Brazilian cities (in economic terms): São Paulo, Rio de Janeiro, Belo Horizonte, Brasíliaand Curitiba. In total, 130 photos were selected for analysis; twenty of them were chosen to represent the four created categories, representing moments of hospitality in cosmopolitan cities: human, architectonic, environmental and hostility. It is noticeable that, although hospitality is a relationship set among two or more individuals, it does not become effective in the absence of adjacent factors, such as architecture and/or the environment. This outcome also reinforces the thin line between hospitality and hostility, to the extent that the perception of hospitality is dependent on hostility. Thus, we expect to contribute to the reasoning about hospitality in contemporary society, which is marked by exclusion, aggressiveness, hostility and, even, moments of inhospitality.

A multi-instrumental and modeling analysis of the ionospheric responses to the solar eclipse on 14 December 2020 over the Brazilian region

Abstract: Abstract. This work presents an analysis of the ionospheric responses to the solar eclipse that occurred on 14 December 2020 over the Brazilian sector. This event partially covers the south of Brazil, providing an excellent opportunity to study the modifications in the peculiarities that occur in this sector, as the equatorial ionization anomaly (EIA). Therefore, we used the Digisonde data available in this period for two sites: Campo Grande (CG; 20.47∘ S, 54.60∘ W; dip ∼23∘ S) and Cachoeira Paulista (CXP; 22.70∘ S, 45.01∘ W; dip ∼35∘ S), assessing the E and F regions and Es layer behaviors. Additionally, a numerical model (MIRE, Portuguese acronym for E Region Ionospheric Model) is used to analyze the E layer dynamics modification around these times. The results show the F1 region disappearance and an apparent electronic density reduction in the E region during the solar eclipse. We also analyzed the total electron content (TEC) maps from the Global Navigation Satellite System (GNSS) that indicate a weakness in the EIA. On the other hand, we observe the rise of the Es layer electron density, which is related to the gravity waves strengthened during solar eclipse events. Finally, our results lead to a better understanding of the restructuring mechanisms in the ionosphere at low latitudes during the solar eclipse events, even though they only partially reached the studied regions.