排序方式： 共有34条查询结果，搜索用时 140 毫秒
31.
Beatriz King-Díaz Flávio José Leite dos Santos Dorila Piló Veloso Salvador Uribe Carvajal 《Pesticide biochemistry and physiology》2006,84(2):109-115
α,7β-Dihydroxyvouacapan-17β-oic acid (1) was isolated from Pterodon polygalaeflorus Benth. Then, (1) was modified to obtain 6α-hydroxyvouacapan-7β,17β-lactone (2). Inhibition properties of both (1) and (2) were evaluated in spinach chloroplasts. Only compound (2) inhibited non-cyclic electron transport and ATP synthesis, i.e., (2) behaved as a Hill reaction inhibitor. Compound (2) did not affect photosystem I (PSI) activity but it did inhibit electron flow through PSII. Analysis of the partial PSII reactions from water to DCPIPox, water to silicomolybdate, and diphenylcarbazide to DCPIPox allowed locating inhibition sites at (i) the oxygen-evolving complex (OEC) and (ii) the redox enzymes of the electron transport chain, in the span of P680 to QA. Chlorophyll a fluorescence measurements confirmed the action site for (2). 相似文献
32.
dos Santos Cabral Maria Jéssica Von dos Santos Veloso Ronnie de Assis Júnior Sebastião Lourenço dos Santos José Barbosa Leite Germano Leão Demolin Zanuncio José Cola Pinheiro Rodrigo Almeida Soares Marcus Alvarenga 《植物病害和植物保护杂志》2023,130(1):205-209
Journal of Plant Diseases and Protection - Bedellia somnulentella (Zeller 1847) (Lepidoptera: Bedelliidae) is an invasive pest in Ipomoea batatas (Convolvulaceae)-producing regions in the tropics.... 相似文献
33.
Lucia Canals Daniela Figueroa Hugo Torres-Contreras Claudio Veloso Mauricio Canals 《Journal of Exotic Pet Medicine》2012,21(3):203-206
This article describes the basic prey requirements of Paraphysa sp., a small mygalomorph spider from the central Andes. Paraphysa sp. can be maintained in captivity using mealworms (Tenebrio molitor) as its primary food source. During a period of 66 days the prey requirements (larvae/day) were calculated for weight maintenance and compared with findings of previously reported resting and active metabolic rates. The spiders in this study ate at frequencies between 0.18 and 0.59 larvae/day, with an average of 0.43 ± 0.14 larvae/day. From the regression line between frequency of feeding (larvae/day) and weight gain, we determined that 0.31 larvae/day were needed for a weight gain of 0. Thus, for the spiders to increase their weight, they would need to eat more than 1 larva every 3 days. This frequency yields a caloric intake of 0.193 kcal/d, or equivalently, a carbon dioxide production of 0.189 mL CO2/g·h. The findings in this report are greater than the resting metabolic rate at 35°C, and they agree with the active metabolic requirements of this spider in the field. 相似文献
34.
Marília Teresa de Oliveira Joo Pedro Scussel Feranti Gabriela Pesamosca Coradini Rafael Oliveira Chaves Luis Felipe Dutra Corrêa Marcella Teixeira Linhares Roberto Thiesen Marco Augusto Machado Silva Maurício Veloso Brun 《Journal of veterinary science (Suw?n-si, Korea)》2021,22(3)
BackgroundIntraoperative fluids are still poorly studied in veterinary medicine. In humans the dosage is associated with significant differences in postoperative outcomes.ObjectivesThe aim of this study is to verify the influence of three different fluid therapy rates in dogs undergoing video-assisted ovariohysterectomy.MethodsTwenty-four female dogs were distributed into three groups: G5, G10, and G20. Each group was given 5, 10, and 20 mL·kg−1·h−1 of Lactate Ringer, respectively. This study evaluated the following parameters: central venous pressure, arterial blood pressure, heart rate, respiratory rate, temperature, acid-base balance, and serum lactate levels. Additionally, this study evaluated the following urinary variables: urea, creatinine, protein to creatinine ratio, urine output, and urine specific gravity. The dogs were evaluated up to 26 h after the procedure.ResultsAll animals presented respiratory acidosis during the intraoperative period. The G5 group evidenced intraoperative oliguria (0.80 ± 0.38 mL·kg−1·h−1), differing from the G20 group (2.17 ± 0.52 mL·kg−1·h−1) (p = 0.001). Serum lactate was different between groups during extubation (p = 0.036), with higher values being recorded in the G5 group (2.19 ± 1.65 mmol/L). Animals from the G20 group presented more severe hypothermia at the end of the procedure (35.93 ± 0.61°C) (p = 0.032). Only the members of the G20 group presented mean potassium values below the reference for the species. Anion gap values were lower in the G20 group when compared to the G5 and G10 groups (p = 0.017).ConclusionsThe use of lactated Ringer''s solution at the rate of 10 mL·kg−1·h−1 seems to be beneficial in the elective laparoscopic procedures over the 5 or 20 mL·kg−1·h−1 rates of infusion. 相似文献