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决定巴西Espinhaco生物圈保护区森林-草地变化的环境因素

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Journal of Plant Ecology 2023年第5期16卷 13-25页

作者： Thais Ribeiro Costa cristiane Coelho de Moura Leovandes soares da Silva Anne Priscila Dias Gonzaga AndréRodrigo Rech Evandro Luiz Mendonga Machado Department of Forest Sciences Federal University of Vales do Jequitinhonha e Mucuri-Campus JKRodovia MGT 367Km 583n 5.000Alto da JacubaDiamantina/MGCEP39100-000Brazil

关于热带雨林(对火敏感)和开放地层(耐火)之间边界所涉及过程的认识对于保护生物多样性和生态系统服务至关重要,尤其是在气候变化和人为压力增加的情况下。本文调查了位于巴西东南部的Espinhaco生物圈保护区内的森林岛屿和湿润草原同时... 详细信息

关于热带雨林(对火敏感)和开放地层(耐火)之间边界所涉及过程的认识对于保护生物多样性和生态系统服务至关重要,尤其是在气候变化和人为压力增加的情况下。本文调查了位于巴西东南部的Espinhaco生物圈保护区内的森林岛屿和湿润草原同时出现的主要环境因素。我们使用Costa(2018)布置的永久样地来收集森林岛屿的土壤变量(水分和化学性质)。对于湿润草原的采样,我们从岛屿边缘沿不同方向设置了4条30m的线。随后,我们在每条线上划了3个点,每个点相距10m,每个区域共12个点。我们还调查了处理火烧前后的植被覆盖情况,并对环境变量进行均值检验和主成分分析。研究结果显示,森林岛屿土壤中钾、盐基总量、阳离子交换容量和有机质的值均高于湿润草地。因此,两种植被类型之间的边界定义似乎主要与土壤肥力和水分梯度有关。在对这些地区进行火烧处理后,在岛屿边缘附近没有发现树木个体的再生。因此,这些研究结果表明,由于明确的土壤气候条件,森林岛屿无法扩张。因此,这些环境应该成为设计公共保护政策的目标焦点,因为它们增加了山地岩石草原植被景观的复杂性。

关键词：湿地土壤气候梯度岛屿森林综合火灾管理有机土

吉兰-巴雷综合征诊治的10个步骤(Diagnosis and management of Guillain-Barrésyndrome in ten steps全译)

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中华诊断学电子杂志 2023年第3期11卷 198-211页

作者： Sonja E Leonhard Melissa R Mandarakas Francisco AA Gondim Kathleen Bateman Maria LB Ferreira David R Cornblath Pieter A van Doorn Mario E Dourado Richard AC Hughes Badrul Islam Susumu Kusunoki Carlos A Pardo Ricardo Reisin James J Sejvar Nortina Shahrizaila cristiane soares Thirugnanam Umapathi 王玉忠 Eppie M Yiu Hugh J Willison Bart C Jacobs 伊拉斯姆斯大学医疗中心神经内科鹿特丹市3015 CE 福塔莱萨联邦大学沃尔特·坎迪奥大学医院塞阿拉州60430-370 开普敦大学格鲁特·舒尔医院开普敦市7925 累西腓市康复医院神经内科伯南布哥州52171-011 约翰·霍普金斯大学医学院神经病学系马里兰州21218 北里奥格兰德州联邦大学奥诺弗雷卢佩斯医院综合医学部纳塔尔市59012-300 伦敦大学学院皇后广场神经病学研究所伦敦市WC1N 3BG 国际腹泻病研究中心达卡市1212 金代大学医学院大阪市589-8511 不列颠医院布宜诺斯艾利斯市C1280AEB 亚特兰大市疾病预防控制中心乔治亚州30329 马来亚大学神经病学系吉隆坡市50603 埃斯塔多联邦医院里约热内卢市20221-903 国家神经科学研究所新加坡308433 济宁医学院附属医院神经内科济宁272029 墨尔本皇家儿童医院神经内科维多利亚州3052 默多克儿童研究所神经科学研究组维多利亚州3052 墨尔本大学儿科学系维多利亚州3052 格拉斯哥大学医学、兽医学与生命科学学院格拉斯哥市G611QH 伊拉斯姆斯大学医疗中心免疫科鹿特丹市3015 GD

吉兰-巴雷综合征(GBS)是一种少见但可危及生命的、自身免疫介导的周围神经病。GBS通常由感染引发,发病率可在感染性疾病暴发期间增加,如2013年法属波利尼西亚和2015年拉丁美洲的寨卡病毒流行期间,该病的发病率明显上升。由于GBS的临床... 详细信息

吉兰-巴雷综合征(GBS)是一种少见但可危及生命的、自身免疫介导的周围神经病。GBS通常由感染引发,发病率可在感染性疾病暴发期间增加,如2013年法属波利尼西亚和2015年拉丁美洲的寨卡病毒流行期间,该病的发病率明显上升。由于GBS的临床表现和病程多种多样,其诊疗存在一定的复杂性,而目前尚无可用的国际性临床诊疗指南。本文作者撰写了一份适用于全球的GBS诊疗指南,特别是在疾病暴发期间,以期为临床医生提供指导。本指南根据当前文献和专家共识撰写而成,采用10步式结构,以便在临床实践中更好地应用。本文首先介绍了GBS的诊断标准、临床变异和鉴别诊断;其次,通过10个步骤介绍了GBS的早期识别和诊断、收治重症监护室的指征、治疗指征和选择、疾病进展的监测和处理、临床病程和结局的预测,以及并发症和后遗症的处理。

关键词：吉兰-巴雷综合征诊断治疗

Oily Water Treatment by Ceramic Membrane: Modeling and Simulation

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Open Journal of Fluid Dynamics 2021年第1期11卷 1-19页

作者： Adriana Barbosa da Costa Pereira Hortência Luma Fernandes Magalhães Leonardo Pereira de Lucena Silva cristiane Arcoverde Passos Ricardo soares Gomez Balbina Raquel de Brito Correia Severino Rodrigues de Farias Neto Antonio Gilson Barbosa de Lima Department of Chemical Engineering Federal University of Campina Grande Campina Grande Brazil Department of Industry Federal Institute of Paraiba Cajazeiras Brazil Department of Chemical Engineering Federal University of Paraná Curitiba Brazil Department of Mechanical Engineering Federal University of Campina Grande Campina Grande Brazil

The separation process of oily water using membranes has attracted the attention of researchers and engineers. The greater problem in the use of membrane separation process is the reduction in permeate flux due to clogged pores by oil deposition inside the membrane or by the effect of the concentration polarization. For this purpose, a theoretical study of a water/oil separation module was performed. This device consists of a tubular ceramic membrane provided with a rectangular inlet section. Numerical simulations were performed using Ansys CFX software to solve the mass and momentum conservation equations in the fluid and porous domains. Here was adopted the RNG k-ε turbulence model. The effect of the membrane porosity and the inlet velocity of the fluid mixture on the two-phase flow behavior inside the separation module were evaluated. Results of the volumetric fraction, velocity and pressure fields of the oil and water phases are presented and analyzed. The results indicate a higher oil concentration within the membrane for the cases of higher porosity, and that the inlet fluid mixture velocity does not substantially affect the velocity profile within the separation module. It is found that the maximum separation efficiency of the module was obtained with feed velocity of 40 m/s and membrane porosity of 0.44.

关键词： Ceramic Membranes Separation Process Computational Fluid Dynamics CFX

Isoenzyme Expression in Bean Seed Germination Treated with Thiamethoxam with and without Drought Stress

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American Journal of Plant Sciences 2015年第19期6卷 3157-3163页

作者： Arthur Blois Villela Andreia da Silva Almeida César Iván Suárez Castellanos cristiane Deuner Vanessa Nogueira soares Thais Ongaratto de Camargo Geri Eduardo Meneghello Francisco Amaral Villela Lilian Madruga de Tunes Paulo Dejalma Zimmer Universidade Federal de Pelotas Pelotas Brazil PPG em Ciência e Tecnologia de Sementes Universidade Federal de Pelotas Pelotas Brazil

The thiamethoxam acts as enhancer, allowing maximizing the expression of seed vigor. Isozymes are products of gene expression, highly influenced by the environment, because genes that control its expression are manifested in certain stages of development and in specific organs and tissues, or even under the action of certain stimulus. This study evaluated the isoenzyme expression in bean seedlings from seeds treated with thiamethoxam. Bean seeds were used, cultivar Pérola and IAPAR Siriri, submitted or not to drought stress. Seeds were treated at doses of thiamethoxam: 0, 1, 2, 3, 4 and 5 mL·kg-1 of seed. Isozymes were extracted from seedlings collected five days after sowing. We evaluated the expression of isoenzymes: Glutamate Oxalacetate transaminase (GOT), acid phosphatase (FAC), peroxidase (PO), Esterase (EST), malate dehydrogenase (MDH) and glutamate dehydrogenase (GTDH). Interpretation of the results was based on visual analysis of electrophoresis gels, considering the presence/absence and the intensity of each electrophoretic band. Bean seeds treated with thiamethoxam with doses up 3 mL·kg-1 of seed are higher germination untreated, even when submitted to drought stress. The expression of isozymes GOT, FAC, PO, EST, MDH and GTDH is not affected significantly in bean seedlings of Pérola and IPR Siriri under different doses of thiamethoxam with and without drought stress.

关键词： Phaseolus vulgaris Enzymes Germination Bioactivator

The in Vitro Antioxidant Capacities of Hydroalcoholic Extracts from Roots and Leaves of Smallanthus sonchifolius (Yacon) Do Not Correlate with Their in Vivo Antioxidant Action in Diabetic Rats

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Journal of Biosciences and Medicines 2016年第2期4卷 15-27页

作者： Ana Carla Broetto Biazon Mariana Marques Nogueira Wendt Júlia Rosa Moreira cristiane Vizioli Castro Ghizoni Andreia Assunção soares Sandra da Silva Silveira Anacharis Babeto de Sá-Nakanishi Ciomar Aparecida Bersani Amado Rosane Marina Peralta Adelar Bracht Jurandir Fernando Comar Pharmacy Department Faculdades Integrado Campo Mourao Brazil Biochemistry Department University of Maringá Maringá Brazil Pharmacology and Therapeutics Department University of Maringá Maringá Brazil

Leaf and root extracts of Smallanthus sonchifolius (yacon), have antihyper-glycemic activity and antioxidant properties. The present study aims to compare the in vivo hepatic antioxidant activity of hydroalcoholic extracts of yacon leaves and roots in rats with streptozotocin-induced diabetes in terms of their in vitro antioxidant capacity. Rats were treated during 14 days with 1060 mg·Kg-1 root extract or 400 mg·Kg-1 leaf extract. The latter was richer in phenolics and possessed a much higher in vitro antioxidant activity. Both extracts prevented hyperglycemia in diabetic rats. The liver of diabetic rats presented increased levels of protein carbonyls and ROS and decreased activities of antioxidant enzymes. Treatment with both root and leaf extracts restored the protein carbonyl levels to normality. The root extract also restored the ROS levels to normality, but the leaf extract was not effective. The root extract was also more effective in restoring the activity of at least two important antioxidant enzymes (glucose 6-phosphate dehydrogenase and glutathione peroxidase). In terms of the antioxidant load (which was 17 times lower in the root extract treatment), the in vivo action of the root extract was more effective than the leaf extract in reducing the hepatic oxidative stress that accompanies diabetes.

关键词： Smallanthus sonchifolius Yacon Streptozotocin-Induced Diabetes Liver Oxidative Status

Evolution on the Water Quality in Sergipe Hinterland Reservoirs, Northeast Brazil

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Journal of Environmental Science and Engineering(B) 2017年第7期6卷 345-351页

作者： Carlos Alexandre Borges Garcia Anairam Piedade de Souza Melol Helenice Leite Garcia cristiane da CunhaNascimento Silvanio Silvario Lopes da Costa Maria Caroline Silva Mendonaa Jose do Patrocinio Hora Alves Marcus Aure1io soares Cruz Rennan Geovanny Oliveira Araujo Post-Graduate Program in Water Resources Federal University of Sergipe Sao Cristavao-----SE 49100-000 Brazil Chemical Engineering Department Federal University of Sergipe Sao Cristovao----SE 49100-000 Brazil Campus Aracaju Federal Instituteof Sergipe Aracaju--SE 49055-260 Brazil Embrapa Coastal Tablelands Brazilian Agricultural Research Corporation Aracaju-SE 49025-04 Brazil Institute of Chemistry Federal University of Bahia Salvador-Ba 40170-115 Brazil

Population growth has consequences for intense use of aquatic ecosystems. Samples were taken, between 2013 and 2014, in the reservoirs ＂Algodoeiro＂ and ＂Gloria＂ in Sergipe, Brazil. TSI （Trophic State Index） and WQI （Water Quality Index） were used. It was determined the parameters such as conductivity, dissolved oxygen, total nitrogen, total phosphorus and chlorophyll. TSI has been applied, in ＂Algodoeiro＂, which was classified as mesotrophic. With the increase of rainfall in 2014, this reservoir changed its condition to eutrophic. ＂Gloria＂ reservoir was already classified in super-eutrophication. Regarding the WQI, the reservoirs were classified in Class IV, indicating a critically degraded condition.

关键词： Water quality environmental degradation limnological studies TSI (Trophic State Index) RWQI (Reservoir WaterQuality Index).

Oily Water Treatment by Ceramic Membrane: Modeling and Simulation

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