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Biochar potentially enhances maize tolerance to arsenic toxicity by improving physiological and biochemical responses to excessive arsenate

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Biochar 2023年第1期5卷 1222-1242页

作者： Md.Mezanur Rahman Ashim Kumar Das sharmin sultana Protik Kumar Ghosh Md.Robyul Islam sanjida sultana Keya Minhaz Ahmed sheikh arafat Islam Nihad MdArifur Rahman Khan Mylea C.Lovell Md.Abiar Rahman s.M.Ahsan Touhidur Rahman Anik Pallavi Fnu Lam-son Phan Tran Mohammad Golam Mostofa Department of Plant Soil ScienceInstitute of Genomics for Crop Abiotic Stress ToleranceTexas Tech UniversityLubbockTX 79409USA Department of Agroforestry EnvironmentBangabandhu Sheikh Mujibur Rahman Agricultural UniversityGazipur 1706Bangladesh Institute of Biotechnology and Genetic Engineering(IBGE) Bangabandhu Sheikh Mujibur Rahman Agricultural UniversityGazipur 1706Bangladesh Department of Agronomy Bangabandhu Sheikh Mujibur Rahman Agricultural UniversityGazipur 1706Bangladesh Plant Pathology Division Bangladesh Rice Research InstituteGazipur 1701Bangladesh Department of Agriculture Bangabandhu Sheikh Mujibur Rahman ScienceTechnology UniversityGopalganj 8100Bangladesh Department of Energy Plant Research Laboratory Michigan State UniversityEast LansingMI 48824USA Plant Resilience Institute Michigan State UniversityEast LansingMI 48824USA Department of Biochemistry and Molecular Biology Michigan State UniversityEast LansingMI 48824USA

Metalloid pollution,including arsenic poisoning,is a serious environmental issue,plaguing plant productivity and quality of life ***,a carbon-rich material,has been known to alleviate the negative effects of environmental pollutants on ***,the specific role of biochar in mitigating arsenic stress in maize remains relatively ***,we elucidated the functions of biochar in improving maize growth under the elevated level of sodium arsenate(Na_(2)AsO_(4),AsV).Maize plants were grown in pot-soils amended with two doses of biochar(2.5%(B1)and 5.0%(B2)biochar Kg^(−1) of soil)for 5 days,followed by exposure to Na_(2)AsO_(4)(’B1+AsV’and’B2+AsV’)for 9 *** plants exposed to AsV only accumulated substantial amount of arsenic in both roots and leaves,triggering severe phytotoxic effects,including stunted growth,leaf-yellowing,chlorosis,reduced photosynthesis,and nutritional imbalance,when compared with control ***,biochar addition improved the phenotype and growth of AsV-stressed maize plants by reducing root-to-leaf AsV translocation(by 46.56 and 57.46%in‘B1+AsV’and‘B2+AsV’plants),improving gas-exchange attributes,and elevating chlorophylls and mineral levels beyond AsV-stressed *** pretreatment also substantially counteracted AsV-induced oxidative stress by lowering reactive oxygen species accumulation,lipoxygenase activity,malondialdehyde level,and electrolyte *** oxidative stress in‘B1+AsV’and‘B2+AsV’plants likely supported by a strong antioxidant system powered by biochar-mediated increased activities of superoxide dismutase(by 25.12 and 46.55%),catalase(51.78 and 82.82%),and glutathione s-transferase(61.48 and 153.83%),and improved flavonoid levels(41.48 and 75.37%,respectively).Furthermore,increased levels of soluble sugars and free amino acids also correlated with improved leaf relative water content,suggesting a better osmotic acclimatization mechanism in biochar-pretreated AsV-exposed plants.

关键词： Arsenic contamination Antioxidant defense system Biochar Gas-exchange attributes Nutrient dynamics Oxidative stress

Laparoscopic surgery for Meckel’s Diverticulum Presenting as small Bowel Obstruction: A Case Report

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surgical science 2016年第11期7卷 505-510页

作者： Mushtaq Chalkoo Mumtaz-Din Wani Hilal Makhdoomi Ankush Banotra Yassar arafat Awhad Mueed syed shakeeb Department of General surgery Government Medical College Srinagar India

Meckel’s diverticulum is not commonly encountered surgical entity and presents unique challenges for a pediatric surgeon, as it is prone to varied complications. A 14-year-old boy was admitted with us with a 48-hour history of lower abdominal pain and multiple episodes of vomiting. Radiological imaging studies revealed a high-grade partial small bowel obstruction. A fleeting conservative management was tried. The diagnostic laparoscopy revealed a small bowel obstruction secondary to a Meckel’s diverticulum. The diverticulum was resected using an endovascular GIA stapler. The patient was discharged on postoperative day four, tolerating a regular diet. Laparoscopy is a useful diagnostic and therapeutic means for a patient with a small bowel obstruction due to an uncertain etiology.

关键词： Laparoscopy Meckel’s Diverticulum small Bowel

Determination of Optimum seed Rate of Hybrid Rice (Oryza sativa L.) Varieties in Mat-Type seedling Raising for Mechanical Transplanting

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Agricultural sciences 2022年第10期13卷 1031-1047页

作者： Md. Anwar Hossen Md. Kamruzzaman sharmin Islam Haimonti Paul Md. Mahir shahriyar arafat Ullah Khan Farm Machinery and Post-harvest Technology Division Bangladesh Rice Research Institute (BRRI) Gazipur Bangladesh

Rice is the most important and crucial to ensuring food and dietary energy security in most developing countries and is the staple food of more than half of the world’s population. This study was conducted to identify the seed rate of hybrid rice varieties for mechanical transplanting during Boro (irrigated dry season), 2021-22 season at BRRI research field, Gazipur. slender grain type BRRI hybrid dhan3, BRRI hybrid dhan5, Ishpahani hybrid dhan6, and BRRI dhan89 were used in the study. The same growth medium was used to establish mat-type seedlings on plastic trays (280 × 80 × 25 mm) at seed rates of 80, 90, 100, 110, and 120 g∙traysup>−1sup>. Walk-behind type 04 rows rice transplanter (Daedong, model-DP 488) was used during transplanting in the field at the set of the plant to plant spacing of 140 mm while line-to-line spacing was fixed to 300 mm. The result depicted that regardless of the variety, seedling density increased linearly as seed rate increased, except for the 21 days following sowing. However, the seedling density of BRRI dhan89 decreased after the seed rate of 100 g∙traysup>−1sup> due to mortality. The seedling height of the BRRI hybrids dhan5 and Ishpahani hybrid dhan6 was significantly higher than that of the BRRI hybrid dhan3 and BRRI dhan89. After 21 days, the seedling height decreased significantly with the increase in seed rate. For the seed rates of 100, 110, and 120 g∙traysup>−1sup>, identical numbers of hills per unit area and plants per hill were observed. On the other hand, regardless of the variety, the percentage of missing hills considerably decreased with the increased seed rate. The yield of the BRRI hybrid dhan5 variety was significantly higher at the seed rates of 100 and 110 g∙traysup>−1sup>, although the yield of the Ishpahani hybrid dhan6 variety was comparable. In terms of yield among the four varieties, BRRI hybrid dhan5 gave a higher yield followed by Ishpahani hybrid

关键词： slender Type Grain seedling Density seedling Height Missing Hill Plants Per Hill Yield

Development and Fabrication of Manually Push-Pull Type Conical Weeder for Bangladesh Condition

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Agricultural sciences 2023年第5期14卷 685-709页

作者： subrata Paul Bidhan Chandra Nath Anwar Hossen Kamruzzaman Pintu Haimonti Paul sharmin Islam arafat Ullah Khan Moudud Ahmmed Farm Machinery and Postharvest Technology Division Bangladesh Rice Research Institute Gazipur Bangladesh school of Civil Engineering and surveying University of Southern Queensland Queensland Australia Workshop Machinery & Maintenance Division Bangladesh Rice Research Institute Gazipur Bangladesh

In Bangladesh, the use of machinery in agriculture production is fast rising. Researchers are developing technology to replace traditional hand weeding to manage weeds in rice fields. The present study has been taken to increase weeding efficiency and reduce the drudgery in weeding and mulching. A line-to-line distance of 20 cm, the operation is push-pull, and field operating condition at 2 - 4 cm standing water (for softening the field) was the designed hypothesis. The weeder consists of a skid/float, float holder, float adjuster, main body frame, rotor, axel, bush, rotor holder, rotor holder adjuster, handle, handle griper, handle holder, handle height adjuster, nut, bolt, etc. The designed weeder was fabricated using Ms sheet, Ms pipe, Ms flat bar, Ms nut-bolt, etc. When the rotors perform back and forth, the weeder’s two conical rotors with six plain blades and six serrated blades work together to uproot and bury the weeds. It also contains a 2 mm thick float assembly with a precise angle of 22 degrees. Weeds are uprooted by the weeder’s blades and buried in the muddy soil. It causes topsoil disturbance and enhances aeration. The weeding efficiency and capacity of the conical weeder were 81.92% and 0.0203 ha/h respectively. With a push-pull operation, the weeder can uproot and bury the weeds in a single row at a time. The pushing force and weight of weeder were 43.42 N and 5.6 kg respectively. Farmers can use this weeder to increase their comfort and reduce the drudgery associated with weeding and mulching in their fields.

关键词： Conical Weeder Field Capacity Weeding Efficiency Weed Paddy

考虑碳捕集电厂综合灵活运行下的含P2G和光热电站虚拟电厂优化调度

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电力建设 2022年第4期43卷 20-27页

作者：廖跃洪陈洁杨彦飞阿热帕提·艾尼瓦尔新疆大学电气工程学院乌鲁木齐830000

为了实现电力系统能源低碳化,大力发展碳捕集与封存技术和风光等新能源是低碳化的重要举措。但碳捕集电厂的最小出力技术约束和风电的反调峰特性限制了风电消纳和碳减排,利用碳捕集灵活运行方式下储液罐进行“能量时移”和“碳转移”,... 详细信息

为了实现电力系统能源低碳化,大力发展碳捕集与封存技术和风光等新能源是低碳化的重要举措。但碳捕集电厂的最小出力技术约束和风电的反调峰特性限制了风电消纳和碳减排,利用碳捕集灵活运行方式下储液罐进行“能量时移”和“碳转移”,间接消纳风电和减少碳排放。利用碳捕集设备捕集的CO;作为电转气原料,降低碳封存成本和电转气成本,进一步消纳弃风电量并获得售气收益。由于负荷具有早晚高峰特性,因此利用含储热式光热电站的良好调峰性能将白天的部分热量转移至晚高峰发电,缓解系统调峰压力。为此,文章构建了碳捕集电厂综合灵活运行下含电转气和光热电站虚拟电厂优化调度模型。并运用Matlab软件中YALMIP工具包中的商用求解器Cplex对模型进行优化计算。仿真结果表明,所提模型能进一步减少弃风、减少碳排放和缓解调峰压力。

关键词：综合灵活运行方式光热电站风电调峰

How far has panic buying been studied?

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World Journal of Meta-Analysis 2020年第6期8卷 446-460页

作者： s M Yasir arafat Fahad Hussain sujita Kumar Kar Vikas Menon Kum Fai Yuen Department of Psychiatry Enam Medical College and HospitalDhaka 1340Bangladesh Department of Pharmacy Noakhali Science and Technology UniversityNoakhali 3814Bangladesh Department of Psychiatry King George’s Medical UniversityLucknow 226003India Department of Psychiatry Jawaharlal Institute of Postgraduate Medical Education and ResearchPuducherry 605006India school of Civil and Environmental Engineering Nanyang Technological UniversitySingapore 639798Singapore

BACKGROUND Although panic buying(PB)is a ubiquitous behavior,it became prominent during the coronavirus disease 2019 ***,studies are inadequate to explore the different aspects of it,even though it covers several perspectives of life and academic *** To assess the research that have been conducted on *** A search was conducted to identify the articles in PubMed,PubMed Central,scopus,and Google scholar using the search term“panic buying”on November 15,2020.A total of 104 articles was extracted from the initial *** removing duplicates and initial and full-text screening,42 articles were included in the *** only considered peer-reviewed published articles that can be downloaded in a full portable document *** published in other languages and preprints were *** Among the 42 articles,27 were original contributions,6 were correspondences,3 were commentaries,3 were review articles,and there was one each for editorial,opinion,and discussion type of *** domains have been researched such as psychology,responsible factors,supply chain,management,disaster preparedness,e-commerce,consumer behavior,marketing,prevention strategies,media,social network,economics,personality,and *** from several disciplines,such as psychiatry,management,economics,business,sales and marketing,consumer behavior,public health,communication,information management,sociology,engineering,business administration,psychology,nursing,health economics,food policy,epidemiology,and community health,have been studied ***,causative model,econometric model,controlling strategy,and measuring instrument have been reported.A total of 18 papers had cross-country collaboration,and ten were funded *** of the authors were affiliated with the institutions of Australia,Bangladesh,China,India,singapore,and the United *** PB is a relatively newer concept to get the attention of the research communit

关键词： Panic buying systematic review COVID-19 Pandemic Disaster supply chain

含深冷液化空气储能的综合能源系统低碳经济调度

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热力发电 2022年第1期51卷 180-189页

作者：阿热帕提·艾尼瓦尔陈洁廖跃洪杨彦飞新疆大学电气工程学院新疆乌鲁木齐830017

研究多能源联合供应的综合能源系统对实现我国碳达峰和碳中和的目标有重大的意义。消纳新能源和多种能源互补是深冷液化空气储能(cryogenic liquid air energy storage,LAEs)系统的重要优势,为了提升综合能源系统的灵活性和可靠性,并且... 详细信息

研究多能源联合供应的综合能源系统对实现我国碳达峰和碳中和的目标有重大的意义。消纳新能源和多种能源互补是深冷液化空气储能(cryogenic liquid air energy storage,LAEs)系统的重要优势,为了提升综合能源系统的灵活性和可靠性,并且能够消纳更多的新能源,首先将LAEs系统加入综合能源系统中,建立含LAEs的综合能源系统,搭建系统的数学模型;然后以系统最小化运行成本为目标,以实际负荷数据为基础,构建了综合能源系统的经济性调度优化模型;最后通过MATLAB对系统进行仿真,并且调用商用软件CPLEX进行优化,从而验证综合能源系统规划的可行性。仿真结果表明,加入新型储能设备后,提高了综合能源系统的经济效益、新能源消纳率、一次能源节约率及碳减排量,同时能够平稳地应对能源价格的波动。

关键词：深冷液化空气储能综合能源系统多能联供新能源消纳经济性运行低碳运行

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电极锅炉与热电厂的弃风消纳协调供热策略

现代电子技术 2023年第1期46卷 169-175页

作者：徐泽鹏陈洁张敬轩阿热帕提·艾尼瓦尔新疆大学电气工程学院新疆乌鲁木齐830047

目前,我国北方冬季供暖期弃风严重,为了优化我国能源结构、减少弃风电量、降低热电厂出力,提出利用电极锅炉消纳弃风电与热电厂协调供热策略。电极锅炉作为一种高效供热和储热设备,可以将电能转化为热能用以供热,以实现最低运行成本和... 详细信息

目前,我国北方冬季供暖期弃风严重,为了优化我国能源结构、减少弃风电量、降低热电厂出力,提出利用电极锅炉消纳弃风电与热电厂协调供热策略。电极锅炉作为一种高效供热和储热设备,可以将电能转化为热能用以供热,以实现最低运行成本和最大消纳弃风电量为目标,考虑了电、热平衡约束及热电联产机组(CHP)出力约束构建了协调供热模型。在供热策略上为了降低建设成本,将电极锅炉分时段调整供热比例供热,如此一来可以降低储热装置容量上限进而节约了建设成本。最后,利用改进的遗传算法对电极锅炉与热电厂联合协调供热模型进行仿真分析,由于电极锅炉存在功率约束和储热装置周期容量不变的约束限制,且调度计划种群的个体具有随机性,优化前进行种群筛选,提高了寻优速度,降低了局部最优解的可能性。仿真结果表明,电极锅炉与热电厂联合供热可有效减少弃风电量提高弃风消纳能力,减少燃煤锅炉煤耗,提升经济和环境效益。

关键词：电极锅炉热电联产机组弃风消纳协调调度遗传算法供热经济效益储热

补饲不同剂量竹叶提取物对泌乳期伊犁马血液生化指标的影响

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新疆农业科学 2022年第11期59卷 2772-2778页

作者：吴睿宸姚新奎孟军曾亚琦王川坤阿拉法特·艾合买提努尔塔依·库尔班塔依新疆农业大学动物科学学院乌鲁木齐830052 新疆农业大学马产业研究院乌鲁木齐830052 新疆马繁育与运动生理重点实验室乌鲁木齐830052

【目的】研究补喂不同剂量竹叶提取物对泌乳期伊犁马抗氧化指标、血清蛋白、免疫指标和激素指标的影响,为分析竹叶提取物能够作为调节伊犁马母马抗氧化、免疫性能及激素的新型无害添加剂提供理论依据。【方法】选取伊犁哈萨克自治州昭... 详细信息

【目的】研究补喂不同剂量竹叶提取物对泌乳期伊犁马抗氧化指标、血清蛋白、免疫指标和激素指标的影响,为分析竹叶提取物能够作为调节伊犁马母马抗氧化、免疫性能及激素的新型无害添加剂提供理论依据。【方法】选取伊犁哈萨克自治州昭苏马场同一草场放牧条件下体况相近的24匹母马作为研究对象,随机分为4组,每组6匹马;对照组不添加竹叶提取物,试验Ⅰ、Ⅱ、Ⅲ组分别添加10、20、30 g/d,饲喂周期为60 d,在第0、15、30、45、60 d通过采集母马的颈静脉血液分析不同补饲梯度血液生化指标的差异。【结果】(1)血液中抗氧化因子:试验Ⅲ组MDA的浓度极显著低于对照组及试验Ⅰ组(P<0.01)。(2)血清蛋白:试验Ⅱ组TP浓度显著低于试验Ⅰ、Ⅲ组(P<0.05),极显著低于对照组(P<0.01);试验Ⅰ组ALB浓度显著低于对照组(P<0.05),极显著低于试验Ⅲ组(P<0.01);试验Ⅱ组GLB浓度极显著低于对照组、试验Ⅰ组(P<0.01);试验Ⅰ组A/G极显著低于试验Ⅱ、Ⅲ组(P<0.01)。(3)血液免疫因子:试验Ⅱ组IL-1β、TNF-α浓度极显著高于对照组(P<0.01),显著高于试验Ⅰ组(P<0.05)。(4)血液激素:试验Ⅱ组PRL浓度极显著高于对照组(P<0.01),显著高于试验Ⅰ组(P<0.05)。【结论】补饲竹叶提取物能够提高泌乳期伊犁马的抗氧化性能。补饲竹叶提取物能够调节激素含量变化,改善泌乳期伊犁马乳汁分泌,提高其产奶性能。

关键词：竹叶提取物泌乳期伊犁马抗氧化免疫激素