95 research outputs found

    Geographic reconstruction of a Central-West Brazilian landscape devastated during the first half of the 20th century: Mato Grosso de Goiás

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    In the history of humanity, there are various accounts of ecosystems that were devastated to the detriment of scientific knowledge. In Brazil, the Atlantic Forest and Cerrado biomes are emblematic of this phenomenon. Specifically, within the latter, an environment consisting predominantly of savanna, a large tropical forest enclave existed, known as Mato Grosso de Goiás. This ecosystem was almost devastated by the Brazilian land expansion policies during the first half of the 20th century. The objective of this study is to estimate the extent of the original area of the Mato Grosso de Goiás ecosystem through integration of historical and cartographic data using geoprocessing techniques. The original area was estimated around 26,391 km². These data can aid in the planning of conservation policies for the Cerrado biome. In addition, the used methodology can be adapted to similar studies, especially in the field of environmental science

    AcĂşmulo de forragem em pastagem natural palha grossa manejada em diferentes alturas.

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    O objetivo do trabalho foi determinar o acúmulo de forragem em pastagem natural com predomínio de Andropogon lateralis, manejada sob diferentes alturas.Claudia Cristina Gulias Gomes, editora técnica

    COFRADĂŤA LATINOAMERICANA

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    O projeto de extensão: “Cofradía Latinoamericana” visa estimular o ativismo cultural,da oralidade à escrita, da performance à cultura digital, da pintura ao grafite, daliteratura à música. Por meio de encontros periódicos, tem por objetivo fomentar avalorização das expressões artísticas latino-americanas. O projeto vem sendodesenvolvido há dois anos no Instituto Federal Catarinense - Campus São Bento doSul, desde 2017, ano em que o campus iniciou suas atividades com o ensino médiointegrado. Até o momento o projeto teve dez encontros, contando com a participaçãode até 90 pessoas

    The impact of surgical delay on resectability of colorectal cancer: An international prospective cohort study

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    AIM: The SARS-CoV-2 pandemic has provided a unique opportunity to explore the impact of surgical delays on cancer resectability. This study aimed to compare resectability for colorectal cancer patients undergoing delayed versus non-delayed surgery. METHODS: This was an international prospective cohort study of consecutive colorectal cancer patients with a decision for curative surgery (January-April 2020). Surgical delay was defined as an operation taking place more than 4 weeks after treatment decision, in a patient who did not receive neoadjuvant therapy. A subgroup analysis explored the effects of delay in elective patients only. The impact of longer delays was explored in a sensitivity analysis. The primary outcome was complete resection, defined as curative resection with an R0 margin. RESULTS: Overall, 5453 patients from 304 hospitals in 47 countries were included, of whom 6.6% (358/5453) did not receive their planned operation. Of the 4304 operated patients without neoadjuvant therapy, 40.5% (1744/4304) were delayed beyond 4 weeks. Delayed patients were more likely to be older, men, more comorbid, have higher body mass index and have rectal cancer and early stage disease. Delayed patients had higher unadjusted rates of complete resection (93.7% vs. 91.9%, P = 0.032) and lower rates of emergency surgery (4.5% vs. 22.5%, P < 0.001). After adjustment, delay was not associated with a lower rate of complete resection (OR 1.18, 95% CI 0.90-1.55, P = 0.224), which was consistent in elective patients only (OR 0.94, 95% CI 0.69-1.27, P = 0.672). Longer delays were not associated with poorer outcomes. CONCLUSION: One in 15 colorectal cancer patients did not receive their planned operation during the first wave of COVID-19. Surgical delay did not appear to compromise resectability, raising the hypothesis that any reduction in long-term survival attributable to delays is likely to be due to micro-metastatic disease
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