检索结果-南通市图书馆

维普期刊数据库

Multi-functional pharmacological credence of triterpenoid 16-hydroxy betulinic acid isolated from Mikania cordata

在线全文

学校读者我要写书评

暂无评论

中国药理学与毒理学杂志 2018年第4期32卷 253-254页

作者： M. Oliur RAHMAN Shah Alam SIDDIQUI Atiqur RAHMAN mohammad Ahsanul AKBAR mohammad ajmal ALI Department of Botany University of Dhaka Dhaka 1000 Bangladesh Department ofApplied Chemistry and Chemical Engineering Islamic University Kushtia 7003 Bangladesh Department of Clinical Pharmacy and Pharmacology University of Dhaka Dhaka 1

OBJECTIVE To isolate and characterize bioactive compound from traditionally important medicinal plant Mikania cordata,and to investigate muti-faced pharmacological activities of the isolated *** A triterpeenoid,16-hydroxy betulinic acid(16 HBA) was isolated from Mikania cordata leaf and the structure of the compound was determined by NMR spectroscopic *** activity of 16 HBA was tested by disc diffusion method and minimum inhibitory concentration(MIC) against the tested microorganisms was *** analgesic property of 16 HBA was tested using acetic acid-induced writhes in mice and hot plate thermal stimulation in *** anti-inflammatory activity was studied using carrageenin-induced paw edema *** antipyretic potential of 16 HBA was evaluated by using yeast-induced hyperthermia in *** The triterpenoid 16 HBA showed potent antibacterial activity with inhibition zone of diameter ranging from 12.0~17.5 mm and antifungal activity with mycelial growth inhibition ranges from 37.6%~54.5%.The MIC values for antibacterial and antifungal activities ranged from 31.5~125 and 250~1000 μg·mL-1 *** compound(50 and100 mg·kg^(-1) body weight) showed potent peripheral and central analgesic activity having 55.19% and41% of writhing inhibition at 90 min after administration of the compound and the highest 55.98%,79.18% elongation of reaction time,*** anti-inflammatory activity screening,the compound(100 mg·kg^(-1)) revealed the highest 77.08% edema inhibition at 4 h after administration of *** antipyretic assay,16 HBA exhibited a strong antipyretic effect in yeast-induced *** The present study confirmed that 16-hydroxy betulinic acid isolated from Mikania cordata has potent antimicrobial,analgesic,anti-inflammatory and antipyretic *** results can be seen as scientific support for the traditional and folklore usage of Mikania cordata in Bangladesh for the treatment of differen

关键词：药用植物薇甘菊活性化学物药物分析

维普期刊数据库

在线全文

学校读者我要写书评

暂无评论

阿富汗经济重建对策研究

现代经济信息 2016年第12期 16-17页

作者： mohammad ajmal Nikjow 马健沈阳建筑大学商学院

阿富汗处于比较落后和复杂的现状,长时间的战乱导致阿富汗的经济建设出现了严重的问题。工业、农业、交通、通讯、教育、医学等方面的发展均受到了影响,战后经济重建成为了阿富汗国家发展的重要任务。文章对阿富汗的经济现状进行分析,... 详细信息

阿富汗处于比较落后和复杂的现状,长时间的战乱导致阿富汗的经济建设出现了严重的问题。工业、农业、交通、通讯、教育、医学等方面的发展均受到了影响,战后经济重建成为了阿富汗国家发展的重要任务。文章对阿富汗的经济现状进行分析,阐述了阿富汗在经济重建过程中面临的挑战,通过调查研究为阿富汗的经济重建提出对策建议。

关键词：阿富汗经济重建对策

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

纺织厂废水对土壤和农作物的影响

农业资源与环境学报 1987年第3期 42-43页

作者： mohammad ajmal 张良房

本试验对北方邦某纺织厂的废水进行了分析,并研究了各种浓度（25,50,75和100%）的废水对土壤的某些物理化学性质及对菜豆和疗伤绒毛花作物的萌发和生长的影响。该废水含有大量的各种类型的固体、BOD、COD、Cl-、SO42-、Na+、K+、

关键词：纺织厂加工厂

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

酿酒厂废水对农业土壤和农作物的影响

重庆环境科学 1986年第3期 60-64页

作者： mohammad ajmal Ahsan Uuah Khan 涂从西南农业大学士化系

测定了印度某酿酒厂（MMBL）废水的理化性质。研究了它直接对肥沃土壤及间接对小麦（Triticum）、豌豆（Pisum sativum）的作用。废水呈酸性,因存在大量固体物质,有较高的 BOD 和 COD,废水富含氨态氮、硝态氮、磷和钾,因此,施用后增加... 详细信息

测定了印度某酿酒厂（MMBL）废水的理化性质。研究了它直接对肥沃土壤及间接对小麦（Triticum）、豌豆（Pisum sativum）的作用。废水呈酸性,因存在大量固体物质,有较高的 BOD 和 COD,废水富含氨态氮、硝态氮、磷和钾,因此,施用后增加了土壤中的有效养分含量。供试土壤表层与下层相比含有较高的氮、磷、钾和有机质。土壤有效钾在100%的废水灌溉土壤中最高,按75%、50%、25%依次降低。土壤有机质、氨态氮,磷也有同样的趋势。土壤 pH 随污水灌溉浓度的提高而逐渐降低。CaCO3在100%和75%的废水灌溉的土壤中被耗尽而50%和25%者则增加。100%的废水灌溉使豌豆、小麦种子的发芽率降为80%、90%、50%和25%的废水灌溉使种子迅速发芽,100%废水灌溉,植物生长缓慢,而50%的则促进植物的生长。

关键词：农业土壤酒厂作物耕作土壤废水灌溉污水污泥小麦麦类作物种子发芽率阳离子交换量

Risk factors for congenital nasolacrimal duct obstruction in children under two years of age

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

国际眼科杂志 2025年第1期25卷 17-23页

作者： Rozhin Kasiri Gholamreza Khataminia Ali Kasiri mohammad Sadegh Mirdehghan mohammad Armin Kasiri Infectious Ophthalmologic Research Center Ahvaz Jundishapur University of Medical SciencesAhvaz ***Iran Islamic Azad University Tehran Medical Sciences Tehran ***Iran

·AIM:To identify various risk factors that may play a significant role in the development of congenital nasolacrimal duct obstruction(CNLDO).·METHODS:This observational case-control study included a case group of 122 children less than two years of age with CNLDO who underwent probing and irrigation treatment at the ophthalmology department of Imam Khomeini Hospital in Ahvaz,Iran,from June 2022 to June2024.A control group of 122 age-matched children without CNLDO was also included for *** was collected from the children's medical records.·RESULTS:The study found a significant correlation between the occurrence of CNLDO and several maternal factors,such as preeclampsia,the use of levothyroxine,hypothyroidism,having more than three pregnancies(gravidity>3),natural pregnancy,and gestational diabetes ***,in children,factors,such as oxygen therapy,anemia,reflux,jaundice,and a family history of CNLDO in first-degree relatives were associated with CNLDO,and maternal preeclampsia and hypothyroidism were found to significantly increase the risk of developing CNLDO in children.·CONCLUSION:Given that CNLDO affects both premature and full-term children,the present findings may potentially facilitate the early identification of children and infants at risk of nasolacrimal duct obstruction,thereby preventing the onset of chronic dacryocystitis.

关键词： risk factors congenital nasolacrimal duct obstruction children

Additional responsibility for physicians caring for cardiac patients: Insight from a case series

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

World Journal of Clinical Cases 2014年第3期2卷 72-74页

作者： Muhammad ajmal Department of Anaesthesia Coombe Women and Infants University Hospital Department of Anaesthesia Sligo General Hospital

Resuscitation measures performed at the scene of the event have the ultimate impact on the outcome of a cardiac arrest. We analysed six case histories of those sudden cardiac arrest patients who were revived in the field and were subsequently admitted to the intensive care unit during a six-month period. All were known cardiac patients and were under the care of healthcare providers. Four of those were discharged home from the hospital and did not suffer any residual damage where as one died of multi-organ failure and the other was declared brain dead. The outcome was good in patients who received early intervention in the form of basic life support. The family members of non-survivors witnessed the cardiac arrest at home but were not familiar with the concept or procedures of basic life support. We propose that physicians who care for cardiac patients should undertake the task of increasing family member awareness and knowledge in the techniques of basic life support.

关键词： Heart disease Cardiac arrest Cardiopulmonary resuscitation Physicians Family members Education and training

Spatio-temporal evolution characteristics and pattern formation of a gas–liquid interfacial AC current argon discharge plasma with a deionized water electrode

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Plasma Science and Technology 2021年第2期23卷 17-29页

作者： Hafiz Imran Ahmad QAZI Muhammad ajmal KHAN Jianjun HUANG SZU-CASIPP Joint Laboratory for Applied Plasma College of Physics and Optoelectronic EngineeringShenzhen UniversityShenzhen 518060People's Republic of China Department of Engineering Physics Tsinghua UniversityBeijing 100084People's Republic of China

A discharge ignited by an AC power source in contact with deionized water as one of the electrodes is *** after initiation,the discharge exhibits a unique phenomenon:the gas-phase discharge is extended into the ***,a cone-like structure is observed at the liquid *** monitoring of current–voltage characteristics and liquid properties versus time suggests that the discharge shapes are functions of the liquid *** spatio-temporal profiles indicate the potential effects of water,ambient air impurities,and metastable argon on the discharge *** becomes more obvious near the liquid surface due to increasing production of various transient reactive species such as centerdot OH and NO ***,it is revealed that thermalization of the rotational population distributions of the rotational states(N′⩽6,J′⩽13/2)in the Q1 branch of the OH(A2Σ+,υ′=0→X2Π3/2,υ′′=0)band ro-vibrational system is influenced by the humid environment near the liquid *** addition,the transient behaviors of instantaneous concentrations of long-lived reactive species(LRS)such as H2O2,NO−2,and NO−3 are observed with lengthening the discharge *** production of multiple transient and LRS proposes AC excited gas–liquid argon discharge as a potential applicant in industrial wastewater cleaning,clinical medicine,and agriculture.

关键词： gas–liquid interface discharge emission patterns rotational temperature plasma chemistry

维普期刊数据库

ROBO-SPOT:Detecting Robocalls by Understanding User Engagement and Connectivity Graph

在线全文

学校读者我要写书评

暂无评论

Big Data Mining and Analytics 2024年第2期7卷 340-356页

作者： Muhammad ajmal Azad Junaid Arshad Farhan Riaz College of Comnputer Science Birmingham City UniversityBirminghamB55JUUK School of Computer Science University of LincolnLincolnLN67TSUK

Robo or unsolicited calls have become a persistent issue in telecommunication networks,posing significant challenges to individuals,businesses,and regulatory *** calls not only trick users into disclosing their private and financial information,but also affect their productivity through unwanted phone ringing.A proactive approach to identify and block such unsolicited calls is essential to protect users and service providers from potential ***,this paper proposes a solution to identify robo-callers in the telephony network utilising a set of novel features to evaluate the trustworthiness of callers in a *** trust score of the callers is then used along with machine learning models to classify them as legitimate or *** use a large anonymized dataset(call detailed records)from a large telecommunication provider containing more than 1 billion records collected over 10 *** have conducted extensive evaluation demonstrating that the proposed approach achieves high accuracy and detection rate whilst minimizing the error ***,the proposed features when used collectively achieve a true-positive rate of around 97%with a false-positive rate of less than 0.01%.

关键词： social network analysis reputation unwanted calls robo-callers telephone network Spam Over Internet Technology(SPIT)

Theoretical evaluation of dielectric materials for lightning energy harvesting system

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Clean Energy 2022年第6期6卷 869-878页

作者： Saad Uddina Jinan Gua Muhammad ajmal School of Mechanical Engineering Jiangsu UniversityZhenjiang 212013China School of Agricultural Equipment Engineering Jiangsu UniversityZhenjiang 212013China

This study describes the hypothetical approach to system design to collect and store electrical energy present in a flash of *** system’s operations include the attraction and handling of the electrical charge obtained from lightning *** differences arise from three different dielectric materials(rutile,mica and quartz)and the results define the estimated response of the storage system,including charge *** the results in this article were obtained through simulation or demonstrated mathematically showing the estimated outcomes of the *** findings demonstrate that each dielectric material has its own advantages and disadvantages that influence the efficiency of the storage *** analysing the distinction of the three materials,it is observed that mica is the most suitable dielectric material,as it has the greatest dielectric strength,which is the main factor in the handling of charge.

关键词： lightning energy capacitor design harvesting system renewable energy