24 research outputs found

    Insecticidal activity of essential oils in controlling fall armyworm, Spodoptera frugiperda.

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    Made available in DSpace on 2020-05-28T04:41:43Z (GMT). No. of bitstreams: 1 insecticidal.pdf: 398524 bytes, checksum: 14300a7992c500e8fe4aaf7405b106c7 (MD5) Previous issue date: 2019bitstream/item/213307/1/insecticidal.pd

    Alerta sobre o plantio de Pinhão Manso no Brasil.

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    Não há dúvidas de que as necessidades de óleos vegetais para a produção de energia (biodiesel) aumentarão muito nos próximos anos, tanto no Brasil como no mundo, uma vez que a proteção do meio ambiente é uma exigência inevitável, que não pode esperar mais, em especial no que tange à substituição do petróleo e seus derivados, que respondem por mais de 60% da emissão dos gases, sobretudo o dióxido de carbono, que promove o efeito estufa e cuja principal conseqüência é o aquecimento da atmosfera e incremento do nível do mar, devido ao degelo, principalmente das calotas polares. Uma das alternativas fitotécnicas para a produção de óleo com vistas à síntese de biodiesel e que tem sido evidenciado, é o pinhão manso, também conhecido por purgulina do inferno ou jatrofa, possivelmente, do Brasil, e ainda não totalmente domesticada.bitstream/CPATSA/36941/1/OPB1560.pdf; bitstream/item/176198/1/OPB1560.pd

    Elective Cancer Surgery in COVID-19-Free Surgical Pathways During the SARS-CoV-2 Pandemic: An International, Multicenter, Comparative Cohort Study.

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    PURPOSE: As cancer surgery restarts after the first COVID-19 wave, health care providers urgently require data to determine where elective surgery is best performed. This study aimed to determine whether COVID-19-free surgical pathways were associated with lower postoperative pulmonary complication rates compared with hospitals with no defined pathway. PATIENTS AND METHODS: This international, multicenter cohort study included patients who underwent elective surgery for 10 solid cancer types without preoperative suspicion of SARS-CoV-2. Participating hospitals included patients from local emergence of SARS-CoV-2 until April 19, 2020. At the time of surgery, hospitals were defined as having a COVID-19-free surgical pathway (complete segregation of the operating theater, critical care, and inpatient ward areas) or no defined pathway (incomplete or no segregation, areas shared with patients with COVID-19). The primary outcome was 30-day postoperative pulmonary complications (pneumonia, acute respiratory distress syndrome, unexpected ventilation). RESULTS: Of 9,171 patients from 447 hospitals in 55 countries, 2,481 were operated on in COVID-19-free surgical pathways. Patients who underwent surgery within COVID-19-free surgical pathways were younger with fewer comorbidities than those in hospitals with no defined pathway but with similar proportions of major surgery. After adjustment, pulmonary complication rates were lower with COVID-19-free surgical pathways (2.2% v 4.9%; adjusted odds ratio [aOR], 0.62; 95% CI, 0.44 to 0.86). This was consistent in sensitivity analyses for low-risk patients (American Society of Anesthesiologists grade 1/2), propensity score-matched models, and patients with negative SARS-CoV-2 preoperative tests. The postoperative SARS-CoV-2 infection rate was also lower in COVID-19-free surgical pathways (2.1% v 3.6%; aOR, 0.53; 95% CI, 0.36 to 0.76). CONCLUSION: Within available resources, dedicated COVID-19-free surgical pathways should be established to provide safe elective cancer surgery during current and before future SARS-CoV-2 outbreaks

    Elective cancer surgery in COVID-19-free surgical pathways during the SARS-CoV-2 pandemic: An international, multicenter, comparative cohort study

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    PURPOSE As cancer surgery restarts after the first COVID-19 wave, health care providers urgently require data to determine where elective surgery is best performed. This study aimed to determine whether COVID-19–free surgical pathways were associated with lower postoperative pulmonary complication rates compared with hospitals with no defined pathway. PATIENTS AND METHODS This international, multicenter cohort study included patients who underwent elective surgery for 10 solid cancer types without preoperative suspicion of SARS-CoV-2. Participating hospitals included patients from local emergence of SARS-CoV-2 until April 19, 2020. At the time of surgery, hospitals were defined as having a COVID-19–free surgical pathway (complete segregation of the operating theater, critical care, and inpatient ward areas) or no defined pathway (incomplete or no segregation, areas shared with patients with COVID-19). The primary outcome was 30-day postoperative pulmonary complications (pneumonia, acute respiratory distress syndrome, unexpected ventilation). RESULTS Of 9,171 patients from 447 hospitals in 55 countries, 2,481 were operated on in COVID-19–free surgical pathways. Patients who underwent surgery within COVID-19–free surgical pathways were younger with fewer comorbidities than those in hospitals with no defined pathway but with similar proportions of major surgery. After adjustment, pulmonary complication rates were lower with COVID-19–free surgical pathways (2.2% v 4.9%; adjusted odds ratio [aOR], 0.62; 95% CI, 0.44 to 0.86). This was consistent in sensitivity analyses for low-risk patients (American Society of Anesthesiologists grade 1/2), propensity score–matched models, and patients with negative SARS-CoV-2 preoperative tests. The postoperative SARS-CoV-2 infection rate was also lower in COVID-19–free surgical pathways (2.1% v 3.6%; aOR, 0.53; 95% CI, 0.36 to 0.76). CONCLUSION Within available resources, dedicated COVID-19–free surgical pathways should be established to provide safe elective cancer surgery during current and before future SARS-CoV-2 outbreaks

    Behaviour of grazing bulls during the dry season receiving high intake supplementation containing differents additives.

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    The objective was to evaluate the effects of high intake supplementation containing different additives on behavior of Nelore bulls grazing during dry season. Four Nelore bulls (425 ± 79.3 kg body weight, BW) fitted with ruminal cannula were studied in a 4 × 4 balanced Latin square design. Animals were distributed in 0.2 ha paddocks of Brachiaria brizantha cv. BRS Piatã, where they received protein-energy supplementation (160 g kg-1 crude protein). Treatments included the additives: 1) virginiamycin at 70 mg kg-1 dry matter (DM); 2) ADV: Advantage 4.1 (Alltech) at 1.25 g kg-1 DM, a yeast-based additive as replacement of virginiamycin; 3) TAN14: ByPro® (Silvateam Brasil) at 1.4 g kg-1 DM, a quebracho tannin extract as replacement of virginiamycin; and 4) TAN21: ByPro® at 2.1 g kg-1 DM as replacement of virginiamycin. All supplements contained salinomycin at 2.5 mg kg-1. Supplementation was provided ad libitum every day at 8h00. Experimental periods lasted 20 days. The grazing behavior was evaluated on day 14 from 6h00 until 18h00, observing the animals in each five minutes (min). The evaluated parameters were: standing ruminating, lying ruminating, standing drinking water, standing grazing, standing eating supplement, and idle time. Statistical analyses were performed using a mixed procedure. Contrasts were used to compare control vs. others additives (ADV + TAN14 + TAN21); ADV vs. TAN (TAN14 + TAN21); and TAN14 vs. TAN21. There were no effects of treatments (P>0.05) on standing ruminating (5 ± 3.6 min), lying ruminating (60 ± 16.6 minutes), standing drinking water (11 ± 2.9 min), standing grazing (246 ± 43.5 min), and idle time (323 ± 37.6 min). Nevertheless, time expend eating supplement exhibited a tendency to be greater (P=0.07) in bulls receiving VIR (59 min) compared to bulls receiving ADV and TAN additives (averaging, 81 min). We conclude that grazing behavior of Nellore bulls during dry season receiving high intake supplementation containing Advantage 4.1 or ByPro additives does not differ of virginiamycin, except increase the time to eat supplement
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