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THERMAL AND ECONOMIC ANALYSIS OF LIME PRODUCTION 石灰生产的热经济分析
Pub Date : 2020-12-20 DOI: 10.48141/sbjchem.v28.n29.2020.06_rosa_pgs_46_54.pdf
Flávia Sapper DA ROSA, A. Lhamby, Vinicyus Mourão Monteiro Guillet, M. A. Klunk, N. Caetano
The ore beneficiation process uses little technology, but mining companies have high economic performance. As an energy source, firewood plays a fundamental role due to its simple storage, low cost, great availability of forests, and lack of processing. Thus, the present work aims to analyze the consumption of firewood as fuel and possible improvements in the process for the production of lime in terms of harnessing raw materials and costs. Calcium oxide is obtained from the thermal decomposition of calcium and magnesium carbonates obtained from dolomitic deposits of limestone (CaCO3 : CaMgCO3). After CaO extraction, it is subjected to a calcination process, removing carbon dioxide (CO2) in ovens that work at temperatures between 900 and 1200°C. The source of energy applied to the calcination furnaces in the analyzed area is wood. The wood has a calorific value between 2,250 and 2,700 Kcal/Kg, but the moisture content responsible for the thermal variation must be considered. The firewood burning process was carried out in a ravine type oven where the temperature at which operators are exposed to heat was evaluated. The results indicated that the cooking time dropped by 20% as the amount of wood is fed into the oven. This increase represents a significant gain in lime production, thus leading to a higher profit for the company.
该选矿工艺技术含量低,但矿山企业经济效益高。作为一种能源,柴火因其储存简单、成本低、森林资源丰富以及缺乏加工而发挥着重要作用。因此,目前的工作旨在分析木柴作为燃料的消耗,以及在利用原材料和成本方面对石灰生产过程的可能改进。氧化钙是从石灰石白云岩矿床中获得的碳酸钙和碳酸镁的热分解得到的(CaCO3: CaMgCO3)。CaO提取后,经过煅烧过程,在900至1200°C的烤箱中去除二氧化碳(CO2)。在所分析的地区,用于煅烧炉的能源是木材。木材的热值在2,250和2,700千卡/公斤之间,但必须考虑引起热变化的水分含量。木柴燃烧过程在一个沟壑式烤箱中进行,在那里操作员暴露在热量下的温度被评估。结果表明,随着木材量的增加,烹饪时间缩短了20%。这一增长代表了石灰产量的显著增长,从而为公司带来了更高的利润。
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引用次数: 0
INVESTIGATING THE EFFECT OF COLD TEMPERATURE STRESS ON UNOPENED MALE CATKINS AND INOCULATED FEMALE FLOWERS OF IRANIAN NATIVE HAZELNUT CULTIVARS 研究低温胁迫对伊朗本土榛子品种未开雄絮和接种雌花的影响
Pub Date : 2020-12-20 DOI: 10.48141/sbjchem.v28.n29.2020.03_bahrami_pgs_17_27.pdf
Saeed Bahrami
In many low-temperature areas, the environmental factor is an important limiting factor for the production and distribution of horticultural plants. This study aimed to investigate the cold tolerance of the male catkins and inoculated female flowers to screen the popular native hazelnut cultivars in Qazvin under low-temperature stress. A completely randomized factorial block design with three replications was used in this experiment with eight cultivars (Nakhnroud, Khandan, Mish-Pestan, South of Qarabagh, Asl-e-Qarabagh, Rasmi, and Gerdashkevar). After removing each of the treated samples at the end of the experiment, the samples were examined morphologically (appearance) and compared with the control. The changes were recorded as qualitative traits. To understand the influence of cold stress on reproductive organs, hydrogen peroxide and proline were measured. The results showed the onset of freezing in unopened male catkins at -7 and -9 °C and in inoculated female flowers at -3 °C. Damage to unopened male catkins' tissue occurred at -11 °C and in female flowers at -5 °C. The highest value observed among cultivars in the case for proline content of male catkins was in Mish-Pestan and Khandan cultivars with 0.816 and 0.660 µmol/ g FW, respectively. In inoculated female flowers, Mish-Pestan and Tabestaneh cultivars with 0.185 and 0.168 µmol/ g FW, respectively, showed the highest statistically significant increase in proline content. Interestingly, the cultivars with the highest proline content in male catkins indicated the most increase in H2O2; Mish-Pestan and Khnadan with 0.569 and 0.541 ug/g FW, respectively. Asl-eQarabagh was observed to have the least H2O2 content (0.042 ug/g FW) among cultivars. Again, in inoculated female flowers, those with the highest concentration of proline (Mish-Pestan and Tabestaneh) were found to have the highest H2O2 content (0.335 and 0.331 ug/g FW, respectively
在许多低温地区,环境因素是制约园艺植物生产和分布的重要因素。本研究旨在研究雄性榛子絮和接种雌花在低温胁迫下的耐寒性,以筛选甘孜温地区常见的乡土榛子品种。8个品种(Nakhnroud、Khandan、mishish - pestan、South of Qarabagh、Asl-e-Qarabagh、Rasmi和Gerdashkevar)采用完全随机因子区组设计,共3个重复。在实验结束时去除每个处理过的样品后,对样品进行形态学(外观)检查,并与对照进行比较。这些变化被记录为质量性状。为了解低温胁迫对生殖器官的影响,测定了过氧化氢和脯氨酸含量。结果表明,未开放雄絮在-7℃和-9℃开始冻结,接种后雌花在-3℃开始冻结。在-11°C和-5°C时,未开放的雄花柳絮组织发生损伤。雄絮脯氨酸含量最高的品种为米什-佩斯坦和坎丹,分别为0.816和0.660µmol/ g FW。在接种雌花中,Mish-Pestan和Tabestaneh分别添加0.185和0.168µmol/ g FW的品种脯氨酸含量的增加具有显著的统计学意义。有趣的是,雄絮脯氨酸含量最高的品种H2O2含量增加最多;米什-巴基斯坦和卡纳丹分别为0.569和0.541 ug/g FW。其中,阿斯勒-伊卡拉巴的H2O2含量最低(0.042 ug/g FW)。同样,在接种雌花中,脯氨酸浓度最高的雌花(Mish-Pestan和Tabestaneh) H2O2含量最高,分别为0.335和0.331 ug/g FW
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引用次数: 0
(Cu0.4Al0.3)TaSe2: PREPARATION AND CRYSTAL STRUCTURE ANALYSIS FROM X-RAY POWDER DIFFRACTION (Cu0.4Al0.3)TaSe2:制备及x射线粉末衍射晶体结构分析
Pub Date : 2020-12-20 DOI: 10.48141/sbjchem.v28.n29.2020.01_delgado_pgs_01_06.pdf
P. Grima-Gallardo, S. Durán, M. Muñoz, D. P. Rai, Gerzon E. DELGADO
A new phase of the (CuAlSe2)1-x(TaSe)x alloy system was synthesized by the melt and annealing technique and studied by SEM, DTA, and XRPD techniques. Its structure has been refined by the Rietveld method using X-ray powder diffraction data. The new alloy corresponds with the stoichiometry Cu0.4Al0.3TaSe2. This compound crystallizes in the hexagonal space group 𝑃6ത𝑚2 (Nº 187) with a MoS2-type structure, and unit cell parameters a = 3.455(2) Å, c = 13.423(4) Å, V = 138.7(1) Å3, Z =2. The crystal structure is based on the MoS2- type of stacking of TaSe2 layers with a partial ordering of Cu and Al cations over the tetrahedral sites. The powder pattern was composed of 63.1% of the principal phase Cu0.4Al0.3TaSe2 and 29.9% of CuAlSe2, 7.0% of TaSe3, as the secondary phases.
采用熔体和退火技术合成了一种新的(CuAlSe2)1-x(TaSe)x合金体系,并用SEM、DTA和XRPD技术对其进行了研究。利用x射线粉末衍射数据,用Rietveld方法对其结构进行了细化。新合金的化学计量量为Cu0.4Al0.3TaSe2。该化合物在六角形空间群𝑃6𝑚2 (Nº187)中结晶,具有二硫化钼型结构,晶胞参数a = 3.455(2) Å, c = 13.423(4) Å, V = 138.7(1) Å3, Z =2。晶体结构是基于MoS2-型的TaSe2层的堆叠,在四面体位点上有Cu和Al阳离子的部分排序。粉末形貌中,主相Cu0.4Al0.3TaSe2占63.1%,次相CuAlSe2占29.9%,TaSe3占7.0%。
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引用次数: 1
EXTRACTION AND CHARACTERIZATION OF CURCUMIN FROM TURMERIC RHIZOMES GROWN IN MÉRIDA, VENEZUELA 产自委内瑞拉mÉrida的姜黄根茎中姜黄素的提取与表征
Pub Date : 2020-12-20 DOI: 10.48141/sbjchem.v28.n29.2020.05_ramirez_pgs_37_45.pdf
Jeans W. Ramírez, M. Guillén, G. Delgado
The extraction of naturally occurring compounds is one of the fastest-growing industries because of its benefits against its synthetic analogs. Environmental protection must require the use of natural products instead of chemicals to minimize pollution. Thus, this investigation studies the use of some natural product, as curcumin, as naturally occurring acid‐base indicators. Curcumin can be used as acid-base indicators since it was found that it possesses pH-dependent solubility. Curcumin, the major active component of turmeric, Curcuma longa (Zingiberaceae), is used as a spice in curry and as a coloring agent in yellow mustards, cosmetics, pharmaceuticals, and hair dyes. In this research, the main compound colored rhizome of turmeric (Curcuma longa) cultivated in Mérida, Venezuela, is extracted: Curcumin (C21H20O6) (1E,6E)-1,7-bis(4-hydroxy-3-methoxyphenyl)-1,6-heptadiene-3,5-dione, in a yield of 3.42% after 8 hours of extraction using soxhlet extractor system with organic solvents (hexane and ethanol). The thin-layer chromatography and column performed separation and purification using a mobile phase, a mixture of chloroform-hexane 3:2. The dye was characterized by spectroscopic analysis of visible ultraviolet (UV-Vis) and infrared (IR), in addition to his studio in steering sensitivity as an acid-base indicator. This dye is useful as an acid-base indicator in strong acid-strong base volumes and did not require large amounts of it as it has high sensitivity. The results indicate that curcumin as an acid-base indicator allows the development of new standards in different chemistry fields that require this type of analysis.
天然化合物的提取是发展最快的行业之一,因为它比人工合成的类似物更有优势。环境保护必须要求使用天然产品而不是化学品,以尽量减少污染。因此,本研究研究了一些天然产物,如姜黄素,作为天然存在的酸碱指标的使用。姜黄素具有ph依赖性的溶解度,可作为酸碱指示剂。姜黄素是姜黄(姜黄科)的主要活性成分,在咖喱中用作香料,在黄芥末、化妆品、药品和染发剂中用作着色剂。本研究以种植于委内瑞拉m里达的姜黄(Curcuma longa)为原料,采用索氏萃取系统,以有机溶剂(己烷和乙醇)为萃取溶剂,萃取8 h,得率为3.42%,提取了姜黄素(C21H20O6) (1E,6E)-1,7-二(4-羟基-3-甲氧基苯基)-1,6-庚二烯-3,5-二酮。薄层色谱和色谱柱使用流动相(氯仿-己烷3:2的混合物)进行分离和纯化。该染料通过可见紫外(UV-Vis)和红外(IR)光谱分析进行了表征,此外他的工作室还将其灵敏度作为酸碱指示剂。这种染料在强酸-强碱体积中作为酸碱指示剂是有用的,并且不需要大量的它,因为它具有高灵敏度。结果表明,姜黄素作为一种酸碱指示剂,可以在不同的化学领域建立新的标准。
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引用次数: 0
QUINOLINE DERIVATIVES AS GROWTH REGULATORS FOR ORNAMENTAL PLANTS 喹啉衍生物作为观赏植物的生长调节剂
Pub Date : 2020-06-20 DOI: 10.48141/SBJCHEM.V28.N28.2020.02_VOSTRIKOVA_PGS_10_16.PDF
T. Vostrikova, V. Kalaev, S. Medvedeva, I. Ledeneva, K. Shikhaliev
It is investigated the effect of synthesized organic compounds of 6-hydroxy-2,2,4-trimethyl-1,2- dihydroquinoline, its derivatives, and hydrogenated analogs. These compounds affected the height of seedlings when they were used for pre-sowing seed treatment of the following ornamental plants: annual ornamental grass – scarlet sage (Salvia splendens) and woody plant – yellow rhododendron (Rhododendron luteum). Prior to the sprouting process, the seeds of Rh. luteum and S. splendens were soaked in water solutions of compounds with concentrations of 0.01%, 0.05%, and 0.1% for 18 hours. Dihydro- and tetrahydroquinolines with a concentration of 0.05% proved to be the most effective for both plants. For Rhododendron luteum, the compounds of 6-hydroxy-2,2,4-trimethyl-1,2-dihydroquinoline, its derivatives, and hydrogenated analogs with a concentration of 0.1% proved to be the most effective. Dihydroquinolines at concentrations of 0.05 and 0.1% proved to have the strongest effect when applied to the studied perennial woody plant (Rhododendron luteum). Dihydroquinoline at the concentration of 0.05% also proved to be effective when applied to the annual grass (Salvia splendens). For annual S. splendens, tetrahydroquinoline at concentrations of 0.01 and 0.05% appeared to be the most effective. The pre-sowing seed treatment of grass Salvia splendens and woody plant Rhododendron luteum with the studied compounds demonstrated that their effect on the height of the seedlings is species-specific. The pre-sowing seed treatment of Rh. luteum and S. splendens allows increasing the height of the seedlings by 3-61 % and 17-25 %, respectively. It is suggested using the compounds of 6-hydroxy-2,2,4- trimethyl-1,2-dihydroquinoline, its derivatives, and hydrogenated analogs as effective growth stimulators for ornamental grasses and woody plants.
研究了6-羟基-2,2,4-三甲基-1,2-二氢喹啉及其衍生物和氢化类似物的合成效果。这些化合物在下列观赏植物播种前进行种子处理时影响了幼苗的高度:一年生观赏草-红鼠尾草(Salvia splendens)和木本植物-黄杜鹃花(rhododendron luteum)。在发芽过程之前,Rh的种子。黄体和splendens分别在0.01%、0.05%和0.1%的化合物水溶液中浸泡18小时。0.05%浓度的二氢喹啉和四氢喹啉对两种植物最有效。结果表明,6-羟基-2,2,4-三甲基-1,2-二氢喹啉及其衍生物和氢化类似物的浓度为0.1%时,对黄杜鹃(Rhododendron luteum)最有效。对多年生木本植物杜鹃(Rhododendron luteum)施用浓度为0.05和0.1%的双对苯二酚类药物效果最强。0.05%浓度的二氢喹啉对一年生草(丹参)也有效。四氢喹啉浓度分别为0.01和0.05%,对一年生的splendens最有效。禾草鼠尾草和木本植物黄杜鹃的播前处理表明,所研究的化合物对幼苗高度的影响具有种特异性。Rh的播前种子处理。黄体和splendens可分别使幼苗高度增加3- 61%和17- 25%。建议利用6-羟基-2,2,4-三甲基-1,2-二氢喹啉及其衍生物和氢化类似物作为观赏草和木本植物的有效生长刺激物。
{"title":"QUINOLINE DERIVATIVES AS GROWTH REGULATORS FOR ORNAMENTAL PLANTS","authors":"T. Vostrikova, V. Kalaev, S. Medvedeva, I. Ledeneva, K. Shikhaliev","doi":"10.48141/SBJCHEM.V28.N28.2020.02_VOSTRIKOVA_PGS_10_16.PDF","DOIUrl":"https://doi.org/10.48141/SBJCHEM.V28.N28.2020.02_VOSTRIKOVA_PGS_10_16.PDF","url":null,"abstract":"It is investigated the effect of synthesized organic compounds of 6-hydroxy-2,2,4-trimethyl-1,2- dihydroquinoline, its derivatives, and hydrogenated analogs. These compounds affected the height of seedlings when they were used for pre-sowing seed treatment of the following ornamental plants: annual ornamental grass – scarlet sage (Salvia splendens) and woody plant – yellow rhododendron (Rhododendron luteum). Prior to the sprouting process, the seeds of Rh. luteum and S. splendens were soaked in water solutions of compounds with concentrations of 0.01%, 0.05%, and 0.1% for 18 hours. Dihydro- and tetrahydroquinolines with a concentration of 0.05% proved to be the most effective for both plants. For Rhododendron luteum, the compounds of 6-hydroxy-2,2,4-trimethyl-1,2-dihydroquinoline, its derivatives, and hydrogenated analogs with a concentration of 0.1% proved to be the most effective. Dihydroquinolines at concentrations of 0.05 and 0.1% proved to have the strongest effect when applied to the studied perennial woody plant (Rhododendron luteum). Dihydroquinoline at the concentration of 0.05% also proved to be effective when applied to the annual grass (Salvia splendens). For annual S. splendens, tetrahydroquinoline at concentrations of 0.01 and 0.05% appeared to be the most effective. The pre-sowing seed treatment of grass Salvia splendens and woody plant Rhododendron luteum with the studied compounds demonstrated that their effect on the height of the seedlings is species-specific. The pre-sowing seed treatment of Rh. luteum and S. splendens allows increasing the height of the seedlings by 3-61 % and 17-25 %, respectively. It is suggested using the compounds of 6-hydroxy-2,2,4- trimethyl-1,2-dihydroquinoline, its derivatives, and hydrogenated analogs as effective growth stimulators for ornamental grasses and woody plants.","PeriodicalId":20606,"journal":{"name":"Proceedings of the SOUTHERN BRAZILIAN JOURNAL OF CHEMISTRY 2021 INTERNATIONAL VIRTUAL CONFERENCE","volume":"99 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-06-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80731487","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
ANTIBIOTIC SUSCEPTIBILITY OF ESCHERICHIA COLI ISOLATE FROM URINARY TRACT INFECTION OF THALASSEMIC PATIENTS IN THI-QAR PROVINCE 青海省地中海贫血患者尿路感染分离株大肠杆菌的药敏分析
Pub Date : 2020-06-20 DOI: 10.48141/SBJCHEM.V28.N28.2020.04_OKAB_PGS_22_33.PDF
Alaa Abood Yasir Okab, M. Salih
Escherichia coli (E. coli) is the most common type of pathogen that causes Urinary tract infection disease. It can be presented as a pathogenic or non-pathogenic strain and found not only in the animal but also in the human intestine. This bacterium can cause opportunistic infection when the human host comprised of thalassemia patients or changes the healthy hemostatic flora. This study aimed to analyze the presence of bacteria in thalassemia patients with urinary tract infection. A total of 303 samples were collected during the period from August 2019 to January 2020 from thalassemia patients who suffered from urinary tract infection. The results showed that there were 6.9% of patients infected with E. coli, 2.6% of patients were infected with S. aureus, 0.7% with both Proteus and Klebsiella, while 89.1% of patients had a negative sample for bacteria. Also, the incidence of urinary tract infections in females is higher than in males. Besides, its occurrence in rural areas is higher than in city residents. Moreover, among 16 antibiotics tested to sensitize bacteria to antibiotics, Imipenem showed 100% efficacy on all isolated bacteria. In contrast, Netilmicin showed 80.1% efficacy, Gentamycin 80.1%, and Amikacin 76.2%. Ampicillin, Aztreonam, Amoxicillin-Clavulanic Acid, Tetracycline, and Ticarcillin-Clavulanic Acid, did not show any effectiveness toward the bacteria while other antibiotics showed different activities. Furthermore, the isolated microbes from thalassemia patients were the highest resistance to antibiotics in comparison with other studies, and this antibiotic-resistant may be due to the weakening of the patient's immune status and frequent blood taking and the antibodies it contains.
大肠杆菌(E. coli)是引起尿路感染疾病的最常见病原体。它可以表现为致病性或非致病性菌株,不仅存在于动物体内,也存在于人类肠道中。当由地中海贫血患者组成的人类宿主或改变健康的止血菌群时,这种细菌可引起机会性感染。本研究旨在分析地中海贫血患者尿路感染中细菌的存在。在2019年8月至2020年1月期间,从患有尿路感染的地中海贫血患者中采集了303份样本。结果显示,6.9%的患者感染了大肠杆菌,2.6%的患者感染了金黄色葡萄球菌,0.7%的患者同时感染了变形杆菌和克雷伯氏菌,89.1%的患者样品细菌阴性。此外,女性尿路感染的发生率高于男性。此外,农村地区的发病率高于城市居民。此外,在16种抗生素中,亚胺培南对所有分离细菌的敏感性均为100%。奈替米星的有效率为80.1%,庆大霉素为80.1%,阿米卡星为76.2%。氨苄西林、氨曲南、阿莫西林-克拉维酸、四环素和替卡西林-克拉维酸对细菌没有任何效果,而其他抗生素则表现出不同的活性。此外,与其他研究相比,从地中海贫血患者中分离出的微生物对抗生素的耐药性最高,这种抗生素耐药性可能是由于患者免疫状态减弱和频繁采血及其所含抗体所致。
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引用次数: 0
Southern Brazilian Journal of Chemistry, Volume 28, No. 28, 2020 南巴西化学杂志,第28卷,第28期,2020
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引用次数: 0
USING SYNTHESISED ORGANIC COMPOUNDS AS ENVIRONMENTALLY FRIENDLY RETARDANTS FOR ORNAMENTAL PLANTS 利用合成有机化合物作为观赏植物的环保型缓凝剂
Pub Date : 2020-06-20 DOI: 10.48141/SBJCHEM.V28.N28.2020.06_VOSTRIKOVA_PGS_40_44.PDF
T. Vostrikova, V. Kalaev, A. Potapov, Dmitry Yu Vandyshev, K. Shikhaliev
The pre-sowing treatment of scarlet sage (Salvia splendens Ker Gawl.) seeds with 4-methyl-2-piperidin1-yl-pyrimidine-5-carboxylic acid at concentrations of 0.01, 0.05, and 0.1% proved to have an obvious inhibiting effect. Prior to sowing, the seeds of Salvia splendens were soaked in a water suspension of 4-methyl-2-piperidin-1-yl-pyrimidine-5-carboxylic acid and 4-methyl-2-morpholin-4-pyrimidine-5-carboxylic acid with concentrations of 0.01%, 0.05%, and 0.1% for 18 hours. On the 42nd day of the experiment, the seedlings, having been preliminarily hardened for 12 days, were removed from the greenhouse and planted on the field. The pre-sowing treatment of Salvia splendens seeds with 4-methyl-2-morpholin-4-pyrimidine-5-carboxylic acid proved to have the inhibiting effect at concentrations of 0.01 and 0.05%. The height of the seedlings decreased by 13.3-43.7%. It was revealed that 4-methyl-2-piperidin-1-yl-pyrimidine-5-carboxylic acid at concentrations of 0.01, 0.05, and 0.1% decreased the growth of the seedlings by 30.4-43.7%, and 4-methyl-2-morpholin-4-pyrimidine-5-carboxylic acid at concentrations of 0.01 and 0.05% decreased the growth of the seedlings by 13.3-22.2%. By contrast, the effect of pyrimidinecarboxylic acids on seed germination and plant height of another annual flower – spreading marigold (Tagetes patula L.) was stimulating. It was investigated some different concentrations from 0.01 to 0.05 %. The same concentrations of identical compounds were tested, but effects from them were opposite for Tagetes patula, and Salvia splendens seedlings. Сonsequently, the species-specific effect of pyrimidinecarboxylic acids on seed germination and plant height for ornamental grasses takes place. Therefore,4-methyl-2-piperidin-1-yl-pyrimidine-5-carboxylic acid and 4-methyl-2-morpholin4-pyrimidine-5-carboxylic acid are recommended as growth retardants for Salvia splendens.
用浓度为0.01、0.05和0.1%的4-甲基-2-胡椒啶- 1-酰基嘧啶-5-羧酸对鲜红鼠尾草种子进行播前处理,具有明显的抑制作用。播种前,将丹参种子分别在0.01%、0.05%和0.1%浓度的4-甲基-2-胡椒苷-1-酰基嘧啶-5-羧酸和4-甲基-2-morpholin-4-嘧啶-5-羧酸水悬液中浸泡18小时。试验第42天,幼苗初步硬化12 d后,移出温室,在田间种植。4-甲基-2-morpholin-4-嘧啶-5-羧酸在播种前处理丹参种子,浓度分别为0.01和0.05%,具有抑制效果。幼苗高度下降13.3 ~ 43.7%。结果表明,浓度为0.01、0.05和0.1%的4-甲基-2-胡椒苷-1-酰基嘧啶-5-羧酸对幼苗生长的抑制作用为30.4% ~ 43.7%,浓度为0.01和0.05%的4-甲基-2-morpholin-4-嘧啶-5-羧酸对幼苗生长的抑制作用为13.3% ~ 22.2%。相比之下,嘧啶羧酸对另一种一年生开花万寿菊(Tagetes patula L.)种子萌发和株高的影响是刺激的。在0.01 ~ 0.05%的浓度范围内对其进行了研究。对相同浓度的相同化合物进行了测试,但它们对万寿菊和丹参幼苗的影响相反。Сonsequently,嘧啶羧酸对观赏草种子萌发和株高的种特异性影响。因此,推荐4-甲基-2-哌啶-1-酰基嘧啶-5-羧酸和4-甲基-2-morpholin - 4-嘧啶-5-羧酸作为丹参的生长抑制剂。
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引用次数: 0
Misuse and Abuse of Drugs: a Cross-Sectional Survey Among Pharmacy Professionals in Saudi Arabia 误用和滥用药物:在沙特阿拉伯药学专业人员的横断面调查
Pub Date : 2020-06-20 DOI: 10.48141/SBJCHEM.V28.N28.2020.07_ROYES_PGS_46_52.PDF
D. Alshayban, Royes Joseph, Jisha M. Lucca, Fatimah Aljishi, Yara Alsadiq
Prescription and non-prescription medication misuse or abuse is a global problem that has a negative impact on all human life aspects, including health, social, economic, and security status. According to the United Nations Office on Drug and Crime reports, over 5% of adult people used drugs at least once in the year 2015, and 29.5 million of them were suffered from the consequences of inappropriate use of drugs. Information on the knowledge and perception among pharmacists regarding the misuse and abuse medications in Saudi Arabia are limited, and therefore, a study was conducted among pharmacy staff to assess their knowledge and awareness on drug misuse and abuse. A cross-sectional study was carried out in Eastern Province, Saudi Arabia. Pharmacy professionals with more than three months of experience were included in the study. A structured questionnaire was used to obtain the participant’s responses. A Chi-square test was used to evaluate the association of sociodemographic factors with the participant's responses. Ninety pharmacy professionals were responded. Overall, 69 (76.7%) participants agreed that misuse and abuse are two different terms. In addition, the study showed different responses for patients who suspected to be medication abusers. In conclusion, this study provides an initial picture of pharmacy staffs’ knowledge and opinion regarding the misuse and abuse of medicines in Saudi Arabia. Participants’ reactions toward such behaviors were different and not consistent. Therefore, there should be a clear policy to define the role of the pharmacy staff toward the misuse and abuse of medication in Saudi Arabia
处方药和非处方药误用或滥用是一个全球性问题,对人类生活的各个方面,包括健康、社会、经济和安全状况产生负面影响。根据联合国毒品和犯罪问题办公室的报告,超过5%的成年人在2015年至少使用过一次毒品,其中2950万人遭受了不当使用毒品的后果。关于沙特阿拉伯药剂师对误用和滥用药物的知识和认知的信息有限,因此,在药房工作人员中进行了一项研究,以评估他们对药物误用和滥用的知识和认识。在沙特阿拉伯东部省进行了一项横断面研究。具有三个月以上经验的药学专业人员被纳入研究。采用结构化问卷来获取参与者的回答。使用卡方检验来评估社会人口因素与参与者反应的关系。90名药学专业人员接受了调查。总体而言,69名(76.7%)参与者认为误用和滥用是两个不同的术语。此外,该研究还显示了对被怀疑是药物滥用者的不同反应。总之,本研究提供了一个初步的图片药房工作人员的知识和意见关于误用和滥用药物在沙特阿拉伯。参与者对这些行为的反应各不相同,也不一致。因此,应该有一个明确的政策来界定药房工作人员对误用和滥用药物在沙特阿拉伯的作用
{"title":"Misuse and Abuse of Drugs: a Cross-Sectional Survey Among Pharmacy Professionals in Saudi Arabia","authors":"D. Alshayban, Royes Joseph, Jisha M. Lucca, Fatimah Aljishi, Yara Alsadiq","doi":"10.48141/SBJCHEM.V28.N28.2020.07_ROYES_PGS_46_52.PDF","DOIUrl":"https://doi.org/10.48141/SBJCHEM.V28.N28.2020.07_ROYES_PGS_46_52.PDF","url":null,"abstract":"Prescription and non-prescription medication misuse or abuse is a global problem that has a negative impact on all human life aspects, including health, social, economic, and security status. According to the United Nations Office on Drug and Crime reports, over 5% of adult people used drugs at least once in the year 2015, and 29.5 million of them were suffered from the consequences of inappropriate use of drugs. Information on the knowledge and perception among pharmacists regarding the misuse and abuse medications in Saudi Arabia are limited, and therefore, a study was conducted among pharmacy staff to assess their knowledge and awareness on drug misuse and abuse. A cross-sectional study was carried out in Eastern Province, Saudi Arabia. Pharmacy professionals with more than three months of experience were included in the study. A structured questionnaire was used to obtain the participant’s responses. A Chi-square test was used to evaluate the association of sociodemographic factors with the participant's responses. Ninety pharmacy professionals were responded. Overall, 69 (76.7%) participants agreed that misuse and abuse are two different terms. In addition, the study showed different responses for patients who suspected to be medication abusers. In conclusion, this study provides an initial picture of pharmacy staffs’ knowledge and opinion regarding the misuse and abuse of medicines in Saudi Arabia. Participants’ reactions toward such behaviors were different and not consistent. Therefore, there should be a clear policy to define the role of the pharmacy staff toward the misuse and abuse of medication in Saudi Arabia","PeriodicalId":20606,"journal":{"name":"Proceedings of the SOUTHERN BRAZILIAN JOURNAL OF CHEMISTRY 2021 INTERNATIONAL VIRTUAL CONFERENCE","volume":"12 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-06-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90377298","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Comparative Study on Antioxidant Activity of Salvia Nemorosa L. From Two Different Locations 不同产地丹参抗氧化活性的比较研究
Pub Date : 2020-06-20 DOI: 10.48141/SBJCHEM.V28.N28.2020.03_GHAFIYEHSANJ_PGS_17_21.PDF
Elham Ghafiyehsanj, Kamaladdin Dilmaghani, Nader Chaparzade, S. Saadatmand
In order to investigate the antioxidant activity of Salvia nemorosa L. collected from Ahar and Urmia regions in Iran at different growth stages, aerial parts of sage after collecting were dried, and for measurement, the ability of scavenge DPPH (2,2-diphenyl-1-picryl-hydrazyl-hydrate) radical in different concentrations (0.025, 0.05, 0.07, 0.1, 0.2, 0.04 and 0.6) of methanolic extracts were prepared. The result showed that the ability to scavenge DPPH radical and amount of inhibition percent of vegetative stage leaves, flowering stage leaves, and flowers increased with increasing concentrations of methanolic extracts from 0.25 to 0.6 mg/ml. In the region of Urmia, the highest amount of DPPH inhibition there was in vegetative stage leaves, and the lowest amount of DPPH inhibition was seen in flowers. In Ahar regions, unlike the Urmia region, the highest amount of DPPH inhibition there was in flowers, but the lowest of DPPH inhibition was seen in flowering stage leaves. Also, the content of inhibition of DPPH in Ahar and Urmia regions similarly increased between two phenological stages (vegetative stage leaves, flowering stage leaves, and flowers) in 0.4 mg/ml and 0.6 mg/ml concentrations
为了研究伊朗阿哈和乌尔米亚地区不同生长时期鼠尾草的抗氧化活性,将采集后的鼠尾草地上部分进行干燥,制备不同浓度(0.025、0.05、0.07、0.1、0.2、0.04和0.6)甲醇提取物对DPPH(2,2-二苯基-1-苦酰基-水合肼)自由基的清除能力。结果表明,在0.25 ~ 0.6 mg/ml甲醇提取物浓度范围内,营养期叶片、花期叶片和花对DPPH自由基的清除能力和抑制率均随甲醇提取物浓度的增加而增加。在Urmia地区,营养期叶片对DPPH的抑制量最高,花对DPPH的抑制量最低。与乌尔米亚地区不同,在阿哈尔地区,DPPH抑制量最高的是花,而DPPH抑制量最低的是花期叶片。此外,在0.4 mg/ml和0.6 mg/ml浓度下,Ahar和Urmia地区的DPPH抑制含量在两个物候阶段(营养期叶、开花期叶和花)之间也有相似的增加
{"title":"Comparative Study on Antioxidant Activity of Salvia Nemorosa L. From Two Different Locations","authors":"Elham Ghafiyehsanj, Kamaladdin Dilmaghani, Nader Chaparzade, S. Saadatmand","doi":"10.48141/SBJCHEM.V28.N28.2020.03_GHAFIYEHSANJ_PGS_17_21.PDF","DOIUrl":"https://doi.org/10.48141/SBJCHEM.V28.N28.2020.03_GHAFIYEHSANJ_PGS_17_21.PDF","url":null,"abstract":"In order to investigate the antioxidant activity of Salvia nemorosa L. collected from Ahar and Urmia regions in Iran at different growth stages, aerial parts of sage after collecting were dried, and for measurement, the ability of scavenge DPPH (2,2-diphenyl-1-picryl-hydrazyl-hydrate) radical in different concentrations (0.025, 0.05, 0.07, 0.1, 0.2, 0.04 and 0.6) of methanolic extracts were prepared. The result showed that the ability to scavenge DPPH radical and amount of inhibition percent of vegetative stage leaves, flowering stage leaves, and flowers increased with increasing concentrations of methanolic extracts from 0.25 to 0.6 mg/ml. In the region of Urmia, the highest amount of DPPH inhibition there was in vegetative stage leaves, and the lowest amount of DPPH inhibition was seen in flowers. In Ahar regions, unlike the Urmia region, the highest amount of DPPH inhibition there was in flowers, but the lowest of DPPH inhibition was seen in flowering stage leaves. Also, the content of inhibition of DPPH in Ahar and Urmia regions similarly increased between two phenological stages (vegetative stage leaves, flowering stage leaves, and flowers) in 0.4 mg/ml and 0.6 mg/ml concentrations","PeriodicalId":20606,"journal":{"name":"Proceedings of the SOUTHERN BRAZILIAN JOURNAL OF CHEMISTRY 2021 INTERNATIONAL VIRTUAL CONFERENCE","volume":"103 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-06-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80646506","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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Proceedings of the SOUTHERN BRAZILIAN JOURNAL OF CHEMISTRY 2021 INTERNATIONAL VIRTUAL CONFERENCE
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