Resumo: A pandemia da Covid-19 ocasionou grandes mudanças na vida cotidiana de todos, principalmente, em relação às adaptações que foram necessárias para o isolamento social. Por exemplo, nas Universidades os cursos presenciais deram lugar às aulas online. Assim, o planejamento das aulas exigiu, de cada professor, uma sequência didática, lógica, para a participação dos estudantes, tanto nas aulas síncronas, quanto nas atividades no modo assíncrono. Diversas plataformas tecnológicas foram sendo disponibilizadas, tais como, o Socrative, o Kahoot, o TRELLO e o próprio Office 365 (O365). Nesse contexto, o objetivo principal deste estudo foi conhecer a percepção dos estudantes, da disciplina de Química Orgânica Aplicada à Farmácia, da Faculdade de Ceilândia da Universidade de Brasília (FCE/UnB), quanto ao uso das plataformas do Office 365 (O365) e do Socrative. O estudo contou com a participação de 50 estudantes do Curso de Farmácia, matriculados no 1º semestre de 2021. Para isso, foi criada uma Equipe na plataforma Teams do O365 e os links dos conteúdos dos capítulos do e-book da “minha biblioteca UnB” e as listas de exercícios, foram compartilhados na Seção “Biblioteca de conteúdo”. Os estudantes responderam as tarefas dos Questionários Forms e realizaram os Socrative. Dos 30 estudantes que responderam o Formulário Forms, sobre o uso dos recursos tecnológicos, todas as respostas foram consideradas na análise de conteúdo, com o uso do software IRAMUTEQ. O estudo mostrou-se promissor para o uso das tecnologias nas categorias de vantagens, “dificuldades”, sugestões e contribuições.

Abstract: The Covid-19 pandemic caused great changes in everyone`s routine, especially with the adaptations that were necessary for the social isolation. For example, in universities, online classes replaced In-person courses. Thus, the planning of classes required, from each teacher, a didactic, logical sequence, for the participation of students, both in synchronous classes and in activities in asynchronous mode. Several technological platforms were provided, such as Socrative, Kahoot, TRELLO and Office 365 (O365). In this context, the main objective of this study was to understand the student's perception, of the discipline of Organic Chemistry Applied to Pharmacy (QOAF1), regarding the use of the O365 and Socrative platforms. The study was carried out with 50 students from the Pharmacy Course, enrolled in the 1st semester of 2021. Thereby, a Team was created on the O365 Teams platform so the content of the course could be shared, such as the links to the chapters of the e-book of “my UnB library” and exercise lists, in the “Content Library” Section. The students answered the tasks of the Forms Questionnaire and performed the Socrative. Thirty studentsanswered the Forms about the use of technological resources, and all of answers were considered in the content analysis, using the IRAMUTEQ software. The results of the study were promising for the use of technologies in the categories of advantages, "difficulties", suggestions and contributions.

ABSTRACT Forest stands in seasonal environments can differ spatially and seasonally in the diversity of fleshy fruits available as resources for fauna. The aim of this study was to quantify spatial and seasonal variation in the richness and abundance of the dominant fleshy-fruited tree species in gallery forests of the Cerrado domain. Tree species composition and abundance were compiled from the literature for 10 gallery forest stands. Data were interpolated and extrapolated by the sample coverage method, using Hill numbers to determine the typical species as well as the most abundant species in each fruiting season. Stands differed in the occurrence of fleshy-fruited tree species and in the number of fleshy-fruited tree individuals. Probabilities for the occurrence of fleshy fruit were similar between in the wet and dry. However, across all stands, species that fruit primarily in the dry season were less common than those that fruit in the wet season. The sharing of fleshy-fruited tree species was low and the most abundant species differed among the studied stands. Fleshy fruits were available all year round and periods of high fruit availability are highly synchronized while periods of low fruit availability were much less so.

Resumo Este estudo apresenta os primeiros registros de Vriesea friburgensis e Tillandsia polystachia para a região centro-oeste do Brasil. As duas espécies foram encontradas em matas de galeria da Floresta Nacional de Brasília, Distrito Federal. Esta unidade de conservação está localizada na região nuclear do domínio Cerrado. Esta descoberta amplia o número de espécies da flora desta localidade e da região centro-oeste, além de aumentar a área de distribuição das duas espécies, anteriormente restrita ao nordeste, sudeste e sul do Brasil.

Abstract This study presents the first records of Vriesea friburgensis and Tillandsia polystachia for the central-west region of Brazil. The two species were found in gallery forests of the National Forest of Brasília, Distrito Federal. This conservation unit is located in the core region of the Cerrado domain. This finding extends the number of species of flora of this locality and of the Central-west Region, and also increases the area of distribution of the two species, previously restricted to the northeast, southeast and south of Brazil.

Flowering species of the herbaceous and shrubby layer were sampled in a gallery forest at Portal da Chapada, Alto Paraíso de Goiás-GO in the Chapada dos Veadeiros during 12 months growing within 4.5 meters on either side of a raised pathway 2.4 Km long. The collections were included to University of Brasilia Herbarium (UB). A total of 138 species (103 genera and 40 families) were recorded; the most species-rich families were Asteraceae (22), Poaceae (14), Rubiaceae (12), Fabaceae (11) and Melastomataceae (7). The richest family in number of genera was Asteraceae (19), followed by Poaceae (8), Fabaceae (8) and Rubiaceae (7). The results showed a meaningful increase in the Chapada dos Veadeiros flora, especially considering the herbaceous-shrubby layer of the gallery forests (223.6%). Despite the richness of the flora, the number of endemics species in the Goiás State was only 1.5%.

Leaves of 18 species of Lauraceae that grow in the Distrito Federal (Brazil) were studied with the goal of characterizing their venation patterns and to identify useful traits in taxonomic differentiation, so that along with their morphology can be achieved concise criteria that help in vegetative identification. The leaves were cleared, stained and photographed. Venation patterns of second, third, fourth and fifth order were described and illustrated for the studied species, which showed brochidodromous or eucamptodromous-brochidodromous secondary venation pattern, except Cryptocarya aschersoniana and Ocotea aciphylla that presented brochidodromous prominulous-reticulate venation. Areole density was found to be a good taxonomic character, which did not happen with the number of sides that they have. The concepts of the venule nodes and branches and the criteria for the classification of its branches were proposed. Most species have branched venules. The analyzed characters together with the morphological ones, such as margin shape and presence or absence of domatia, allowed the differentiation of the studied species, demonstrating the clear importance of leaf architecture in the taxonomic recognition of specimens in a vegetative state.

Fueron estudiadas las hojas de 18 especies de Lauraceae que crecen en el Distrito Federal (Brasil), con el objetivo de caracterizar sus patrones de venación e identificar características útiles en su diferenciación taxonómica, para que junto a su morfología se puedan obtener criterios útiles que ayuden en su identificación vegetativa. Las hojas fueron diafanizadas, coloreadas y fotografiadas. Los patrones de venación del segundo, tercero, cuarto y quinto orden fueron descritos e ilustrados para las especies estudiadas, que presentaron una venación secundaria de tipo broquidódroma o eucamptódromo-broquidódroma, excepto en Crytocarya aschersoniana y Ocotea aciphylla con venación broquidódroma promínula reticulada. La densidad de areolas se mostró como un buen carácter taxonómico, lo que no ocurrió con el número de lados que éstas poseen. Fueron propuestos los conceptos de nudos y ramas de las vénulas y criterios para la clasificación de sus ramificaciones. La mayoría de las especies poseen vénulas ramificadas. Los caracteres analizados, unidos con los morfológicos tales como tipo de indumento, formas de borde, y presencia y/o ausencia de domacios, posibilitaron la diferenciación de las 18 especies estudiadas, evidenciando la clara importancia de la arquitectura foliar en el reconocimiento taxonómico de especímenes en estado vegetativo.