https://repositorio.ufu.br/handle/123456789/5160 Wed, 05 Aug 2026 11:17:33 GMT 2026-08-05T11:17:33Z https://repositorio.ufu.br:443/retrieve/b23f12e1-21dd-4c9f-9dfa-a54c16775eee/ https://repositorio.ufu.br/handle/123456789/5160 https://repositorio.ufu.br/handle/123456789/49269 Title: Isolamento, caracterização e avaliação do potencial antitumoral de proteínas da peçonha de Bothrops alternatus Thu, 23 Jul 2026 00:00:00 GMT https://repositorio.ufu.br/handle/123456789/49269 2026-07-23T00:00:00Z https://repositorio.ufu.br/handle/123456789/49249 Title: Preferência por padrões de cor em aranhas Colonus sp. e Chira sp. (Salticidae) Abstract: Spiders of the family Salticidae use visual information in different behavioral contexts, including environmental exploration and the use of different plant substrates. In this study, we investigated whether flower color, when presented in isolation, acts as a relevant cue for microhabitat choice in spiders of the genera Colonus sp. and Chira sp. For this purpose, behavioral trials were conducted in an experimental arena using standardized artificial flowers in yellow, white, pink, green, and red. A total of 32 individuals were evaluated, including 15 Colonus sp. and 17 Chira sp., during five-minute trials, considering the first choice, the total frequency of choices, and the time spent on each flower. The reflectance of the chromatic stimuli was characterized by spectrometry, allowing confirmation of the distinction among the patterns used in the experiment. First choice was analyzed using a chi-square goodness-of-fit test with Monte Carlo simulation, while the total frequency of choices and time spent on the flowers were evaluated using generalized linear mixed models. No significant differences among colors were observed for any of the variables analyzed, either in Colonus sp. or in Chira sp. Nevertheless, the spiders visited the attraction structures and remained on the flowers during the trials, indicating interaction with the artificial stimuli. Thus, the results did not support the hypothesis of chromatic preference in microhabitat choice, suggesting that color alone was not sufficient to guide the selection of artificial flowers. The choice of these substrates may depend on the integration of other environmental cues, such as structural, chemical, tactile, or contextual characteristics. Thu, 23 Jul 2026 00:00:00 GMT https://repositorio.ufu.br/handle/123456789/49249 2026-07-23T00:00:00Z https://repositorio.ufu.br/handle/123456789/49232 Title: Entre prazos e afetos: uma narrativa autobiográfica sobre os desafios para conclusão de curso de uma mãe universitária Abstract: This work addresses the challenges faced by a university mother in maintaining and completing the Bachelor's degree in Biological Sciences at the Federal University of Uberlândia (UFU) through an autobiographical narrative. The text aims to reflect on the impacts of motherhood on the academic trajectory, analyzing the obstacles, the meanings attributed to the reconciliation between university life and the exercise of motherhood, and the factors that allowed the completion of the course. Methodologically, it is a qualitative research, with a narrative-reflective and autobiographical approach, based on the writing of a reflective account and the dialog with studies on motherhood in higher education, student retention, and support policies for student mothers. The reflections of this work point out that single motherhood, associated with work demands, family responsibilities, and the absence of specific institutional policies, contributed to interruptions, failures, prolonged graduation time, and feelings of overload, guilt, and insecurity. At the same time, the research demonstrates that family support networks, welcoming relationships established with colleagues and professors, as well as the re-signification of the maternal experience itself, were fundamental elements for the continuity of academic training. Moreover, the identification with the investigated theme and the possibility of transforming one's own trajectory into an object of reflection and knowledge production were decisive factors for the completion of this work and the undergraduate course. It is concluded that motherhood does not, by itself, constitute an impediment to university permanence, but rather highlights structural limitations of society and higher education institutions in accommodating the specific needs of student mothers. It is hoped that this study will contribute to expanding the debate on motherhood and higher education, encouraging the formulation of institutional policies that promote greater inclusion, visibility, and academic permanence. Mon, 29 Jun 2026 00:00:00 GMT https://repositorio.ufu.br/handle/123456789/49232 2026-06-29T00:00:00Z https://repositorio.ufu.br/handle/123456789/49195 Title: Visitantes florais e sua eficiência na polinização de Solanum lycopersicum var. cerasiforme em sistema agroflorestal. Abstract: This study evaluated the community of floral visitors and the efficiency of pollination in cherry tomato cultivation (Solanum lycopersicum var. cerasiforme) grown in an agroforestry system in the municipality of Uberlândia, Minas Gerais, Brazil. Biotic pollination is a fundamental ecological process for agricultural production, directly influencing productivity and fruit quality in several crops. The objective was to identify visiting bee species, characterize their interaction with the crop, and assess the influence of biotic pollination on fruit quality. The methodology consisted of a preliminary survey of floral visitors through systematic field observations, followed by an experiment with three pollination treatments: self-pollination, open pollination, and single visitation. Physical and chemical fruit parameters were analyzed, including length, mass, number of seeds, and soluble solids content, using ANOVA or a t-test to compare treatments and visitor species. The results indicated a high diversity of bees in the agroforestry system, with Paratrigona lineata and Exomalopsis sp. being the most frequent species. Pollination mediated by floral visitors promoted a significant increase in seed number and influenced the longitudinal length of fruits when compared to self-pollination. No significant differences were observed between the evaluated species regarding pollination efficiency under single visitation, indicating similar performance in fruit formation. It was concluded that, although tomato plants are capable of self-pollination, the activity of native pollinators contributes significantly to reproductive success and fruit quality in agroforestry systems, reinforcing the importance of conserving bee diversity as a strategy for sustainable agricultural production. Fri, 20 Mar 2026 00:00:00 GMT https://repositorio.ufu.br/handle/123456789/49195 2026-03-20T00:00:00Z