维普中文期刊产品整合服务
305篇 您的检索式:作者名="Abdu"
    题名 作者 年代 出处 被引量
1脑卒中患者睡眠障碍的临床异质性研究显示文摘【目的】探讨急性脑卒中患者睡眠障碍的临床异质性。【方法】采用匹兹堡睡眠质量指数量表(PSQI)对84例急性脑卒中患者与55例正常对照者的睡眠状况进行测评分析,同时采用Barthel指数(BI)与美国国立卫生研究院卒中量表(NIHSS)分别评价脑卒中患者的日常生活活动能力与神经功能缺损程度。【结果】脑卒中组中睡眠障碍发生率(46.4%)明显高于对照组(16.4%)(P<0.05);脑卒中组PSQI总分以及睡眠质量、入睡时间、睡眠障碍、催眠药物、日间功能障碍五因子得分均明显高于对照组(P<0.05);年龄<50岁脑卒中组PSQI总分明显高于其它年龄组;脑卒中患者睡眠障碍的发生与年龄、性别、Barthel指数及神经功能缺损程度相关。【结论】急性脑卒中患者存在显著的睡眠障碍,年龄<50岁伴神经功能缺损的女性脑卒中患者更明显,而且不同脑卒中患者PSQI各因子方面存在明显的临床异质性。Abdulrakeeb Abdu Saeed Alhakimy 刘中霖 陶恩祥 2010中山大学学报(医学科学版)2010,31,5:28
2Recent advances and perspectives of nucleic acid detection for coronavirus显示文摘The recent pneumonia outbreak caused by a novel coronavirus(SARS-CoV-2)is posing a great threat to global public health.Therefore,rapid and accurate identification of pathogenic viruses plays a vital role in selecting appropriate treatments,saving people's lives and preventing epidemics.It is important to establish a quick standard diagnostic test for the detection of the infectious disease(COVID-19)to prevent subsequent secondary spread.Polymerase chain reaction(PCR)is regarded as a gold standard test for the molecular diagnosis of viral and bacterial infections with high sensitivity and specificity.Isothermal nucleic acid amplification is considered to be a highly promising candidate method due to its fundamental advantage in quick procedure time at constant temperature without thermocycler opera-tion.A variety of improved or new approaches also have been developed.This review summarizes the currently available detection methods for coronavirus nucleic acid.It is anticipated that this will assist researchers and clinicians in developing better techniques for timely and effective detection of coro-navirus infection.Minzhe Shen Ying Zhou Jiawei Ye Abdu Ahmed Abdullah AL-maskri Yu Kang Su Zeng Sheng Cai 2020Journal of Pharmaceutical Analysis2020,10,2:27
3Current trends in staging rectal cancer显示文摘Management of rectal cancer has evolved over the years. In this condition preoperative investigations assist in deciding the optimal treatment. The relation of the tumor edge to the circumferential margin (CRM) is an important factor in deciding the need for neoadjuvant treatment and determines the prognosis. Those with threatened or involved margins are offered long course chemoradiation to enable R0 surgical resection. Endoanal ultrasound (EUS) is useful for tumor (T) staging; hence EUS is a useful imaging modality for early rectal cancer. Magnetic resonance imaging (MRI) is useful for assessing the mesorectum and the mesorectal fascia which has useful prognostic significance and for early identification of local recurrence. Computerized tomography (CT) of the chest, abdomen and pelvis is used to rule out distant metastasis. Identification of the malignant nodes using EUS, CT and MRI is based on the size, morphology and internal characteristics but has drawbacks. Most of the common imaging techniques are suboptimal for imaging following chemoradiation as they struggle to differentiate fibrotic changes and tumor. In this situation, EUS and MRI may provide complementary information to decide further treatment. Functional imaging using positron emission tomography (PET) is useful, particularly PET/CT fusion scans to identify areas of the functionally hot spots. In the current state, imaging has enabled the multidisciplinary team of surgeons, oncologists, radiologists and pathologists to decide on the patient centered management of rectal cancer. In future, functional imaging may play an active role in identifying patients with lymph node metastasis and those with residual and recurrent disease following neoadjuvant chemoradiotherapy.Abdus Samee Chelliah Ramachandran Selvasekar 2011World Journal of Gastroenterology2011,17,7:26
4Mechanisms of action of leptin in preventing gastric ulcer显示文摘AIM: To investigate the effects of leptin (1-20 μg/kg) on acidified ethanol (AE)- and indomethacin (Indo)-induced gastric lesions in rats and compare it with ranitidine, lansoprazole, and omeprazole and to determine its mechanisms of actions.METHODS: Gastric ulcers, which were approximately 1 mm in width, formed in the glandular portion of the gastric mucosa produced by oral administration of either AE or Indo were taken as ulcer index. The inhibitory effect of subcutaneous administration of leptin, two proton pump inhibitors (PPIs) lansoprazole and omeprazole, or H2-receptor antagonist ranitidine 30 min before AE or Indo was evaluated.A radioimmunoassay was used to determine the PGE2concentration in the homogenate of the glandular portion of the stomach. We performed histological study of the glandular stomach for the evaluation of total, acidic, and sulfated mucus content.RESULTS: Subcutaneous administration of leptin, two PPIs lansoprazole and omeprazole or H2-receptor antagonist ranitidine 30 min before AE or Indo produced a dosedependent and reproducible inhibition of gastric ulcers (GUs). This inhibition was found to be more potent than other antagonists used. In NG-nitro L-arginine methyl ester (L-NAME)-pretreated animals, the ulcer prevention ability of leptin in AE-induced ulcer was significantly reduced,compared to rats without L-NAME pretreatment. However,the ulcer prevention ability of leptin was not altered by L-NAME treatment in Indo-induced ulcers. Leptin produced a dose-dependent increase in PGE2 level in the gastric glandular tissues. Leptin also increased mucus secretion.CONCLUSION: The results of the present study show that leptin inhibits GU formation by AE or Indo in a dosedependent and reproducible manner in rats. The results also suggest that leptin prevents ulcer formation by increasing the activities of the cyclo-oxygenase and/or nitric oxide pathways and by increasing mucus secretion.Edward O.Adeyemi Salim A.Bastaki Irwin S.Chandranath Mohammed Y.Hasan Mohammed Fahim Abdu Adem 2005World Journal of Gastroenterology2005,11,27:9
5Dual Gabriel theorem with applications显示文摘We introduce the quiver of a bicomodule over a cosemisimple coalgebra. Applying this to the coradical C0 of an arbitrary coalgebra C, we give an alternative definition of the Gabriel quiver of C, and then show that it coincides with the known Ext quiver of C and the link quiver of C. The dual Gabriel theorem for a coalgebra with a separable coradical is obtained, which generalizes the corresponding result for a pointed coalgebra. We also give a new description of C1 = C0 ∧X C0 of any coalgebra C, which can be regarded as a generalization of the first part of the well-known Taft-Wilson Theorem for pointed coalgebras. As applications, we give a characterization of locally finite coalgebras via their Gabriel quivers, and a property of the Gabriel quiver of a quasi-coFrobenius coalgebra.CHEN Xiaowu, HUANG Hualin & ZHANG Pu Department of Mathematics, University of Science and Technology of China, Hefei 230026, China USTC Shanghai Institute for Advanced Studies, Shanghai 201315, China Mathematical Section, the Abdus Salam ICTP, Strada Costiera 11, Trieste 34014, Italy Department of Mathematics, Shanghai Jiao Tong University, Shanghai 200030, China 2006Science China Mathematics2006,49,1:6
6沙库巴曲/缬沙坦治疗扩张型心肌病合并心力衰竭一例显示文摘血管紧张素受体-脑啡肽酶抑制剂(ARNI)沙库巴曲/缬沙坦对扩张型心肌病(DCM)合并射血分数减低心力衰竭(HFrEF)及复杂心律失常治疗效果仍不明确。该文报道了1例52岁男性,因发现心率慢8年余,胸闷头晕3个月入院,诊断为DCM、心力衰竭、室性心动过速、心房颤动、心房扑动。行植入型体内自动除颤器植入术,术后予β受体拮抗剂、ACEI、醛固酮拮抗剂、利尿剂等药物治疗,效果不佳,后更换ACEI为ARNI(沙库巴曲/缬沙坦)治疗3个月,起始剂量为100 mg,每日2次,服药3个月后患者LVEF从42%升至54%,N-端脑钠肽前体降低,6 min步行距离增加,室性期前收缩及室性心动过速减少,说明起始剂量100 mg的沙库巴曲/缬沙坦治疗DCM合并HFrEF及复杂心律失常安全,效果或优于ACEI类药物。Khaled Abdulbaqi Baggash Nasr Amgad Qaid Abdu Al-gaobahi 朱世杰 赵海玉 彭健 2020新医学2020,51,2:5
7用传统分类法、叙词表编制机构Taxonomy的实证研究显示文摘Information Studies Taxonomy的编制以新加坡南洋理工大学黄金辉传播与信息学院信息学系为实施机构,以杜威法和三部叙词表为结构库和词库,调查了杜威法和三部叙词表作为机构Taxonomy构建资源的充分性及其在主题分面编制中的作用,同时探讨了用传统分类法和叙词表编制机构Taxonomy类表的步骤与方法。该研究虽然在英文语境下进行,但所运用的思路与方法对于中文环境下机构Taxonomy的编制也是有借鉴意义的,其研究方法与研究结论对于在中文环境下用传统分类法、叙词表编制机构Taxonomy的研究也有推动作用。表2。参考文献7。王忠红 Abdus Sattar Chaudhry Khoo Christopher 2008中国图书馆学报2008,34,6:4
8Predictive car-following scheme for improving traffic flows on urban road networks显示文摘Driving behavior is one of the main reasons that causes bottleneck on the freeway or restricts the capacity of signalized intersections.This paper proposes a car-following scheme in a model predictive control(MPC)framework to improve the traffic flow behavior,particularly in stopping and speeding up of individual vehicles in dense urban traffic under a connected vehicle(CV)environment.Using information received through vehicle-to-vehicle(V2V)communication,the scheme predicts the future states of the preceding vehicle and computes the control input by solving a constrained optimization problem considering a finite future horizon.The objective function is to minimize the weighted costs due to speed deviation,control input,and unsafe gaps.The scheme shares the planned driving information with the following vehicles so that they can make better cooperative driving decision.The proposed car-following scheme is simulated in a typical driving scenario with multiple vehicles in dense traffic that has to stop at red signals in multiple intersections.The speeding up or queue clearing and stopping characteristics of the traffic using the proposed scheme is compared with the existing car-following scheme through numerical simulation.A.S.M.BAKIBILLAH Mahmudul HASAN Md Mustafijur RAHMAN Md Abdus Samad KAMAL 2019Control Theory and Technology2019,17,4:3
9Bowel perforation due to break and distal passage of the safety ring of an adjustable intra-gastric balloon: A potentially life threatening situation显示文摘A 45-year-old man of Middle Eastern origin, morbid obese, with a body mass index of 39 had an intragastric balloon, filled with 500 mL of saline/methylene blue and intended as definite therapy, inserted some8 wk previously. He was admitted to the emergency department with abdominal cramps. An ultrasound of the abdomen was performed in ER which confirmed the balloon to be in place without any abnormality.He was discharged home on symptomatic medication.Patient remains symptomatic therefore he reported back to ER 2 d later. Computed tomography scan was performed this time for further evaluation which revealed a metallic ring present in the small bowel while the intra-gastric balloon was in its proper position.There was no clinical or radiological sign of intestinal obstruction. Patient was hospitalized for observation and conservative management. The following night,patient experienced sudden and severe abdominal pain, therefore an X-ray of the abdomen in erect position was done, which showed free air under the right dome of diaphragm. Patient was transferred to O.R for emergency laparotomy. There were two small perforations identified at the site of the metallic ring entrapment. The ring was removed and the perforations were repaired. Due to increasing prevalence of obesity and advances in modalities for its management,physicians should be aware of treatment options, their benefits, complications and clinical presentation of the known complications. Physicians need to be updated to approach these complications within time, to avoid lifethreatening situations caused by these appliances.Ali M Al-Zubaidi Hassan U Alghamdi Abdu H Alzobydi Irshad A Dhiloon Laeeque A Qureshi 2015World Journal of Gastrointestinal Endoscopy2015,7,4:3
10Electromagnetic induction mapping at varied soil moisture reveals field-scale soil textural patterns and gravel lenses显示文摘Knowledge of the spatial distribution of soil textural properties is important for determining soil moisture storage and soil hydraulic transport properties.Capturing field heterogeneity without exhaustive sampling and costly sample analysis is difficult. Our objective was to employ electromagnetic induction(EMI) mapping in low apparent electrical conductivity(EC_a) soils at varying soil water contents to capture time invariant properties such as soil texture. Georeferenced EC_ameasurements were taken using a ground conductivity meter on six different days where volumetric water content(θ_v) varied from 0.11 to 0.23. The 50 m × 50 m field included a subsurface gravelly patch in an otherwise homogeneous silt-loam alluvial soil.Ordinary block kriging predicted EC_aat unsampled areas to produce 1-m resolution maps. Temporal stability analysis was used to divide the field into three distinct EC_a regions. Subsequent ground-truthing confirmed the lowest conductivity region correlated with coarse textured soil parent materials associated with a former high-energy alluvial depositional area. Combining maps using temporal stability analysis gives the clearest image of the textural difference. These maps could be informative for modeling,experimental design, sensor placement and targeted zone management strategies in soil science, ecology, hydrology,and agricultural applications.Hiruy ABDU David A.ROBINSON Janis BOETTINGER Scott B.JONES 2017Frontiers of Agricultural Science and Engineering2017,4,2:2
11Silymarin Ascending Multiple Oral Dosing Phase I Study in Noncirrhotic Patients With Chronic Hepatitis C显示文摘Roy L. Hawke Sarah J. Schrieber Tedi A. Soule Zhiming Wen Philip C. Smith Rajender K. Reddy Abdus S. Wahed Steven H. Belle Nezam H. Afdhal Victor J. Navarro Josh Berman Qi-Ying Liu Edward Doo Michael W. Fried 2010Journal of Clinical Pharmacology2010,,4:2
12Primary aortoduodenal fistula:A case report显示文摘Primary abdominoaortic fistula is an extremely rare cause of upper gastrointestinal(GI)bleeding.The diagnosis is frequently delayed due to the rarity of the disease and low index of suspicion by physicians.A range of invasive and non-invasive diagnostic tools are available,but helical computer tomography(CT) remains the mainstay.Surgery offers the only hope for survival.This case report presents a 47-year-old male with massive upper GI bleeding.Various diagnostic tests and an exploratory laparotomy failed to identify the diagnosis.Later,a primary aortoduodenal fistula was confirmed by CT scan which necessitated surgical repair of the fistula and a Goretex graft for the abdominal aortic aneurysm.The patient made an uneventful recovery and remained well to the first postoperative visit in the clinic 2 wk after surgery.Abdu Hassan Alzobydi Shaista Salman Guraya 2013World Journal of Gastroenterology2013,19,3:2
13Fusarium wilt of banana:Current update and sustainable disease control using classical and essential oils approaches显示文摘Fusarium species were reported to produce biofilms.Biofilms are superficial societies of microbes bounded and endangered by being situated or taking place outside a cell or cells.The most destructive fungal diseases caused by phytopathogens are as a result of biofilms formation.Fusarium wilt of banana(Panama disease)is caused by a soil-borne pathogen called Fusarium oxysporum f.sp.cubense.Fusarium oxysporum occurs in a form of a species complex(FOSC)which encompasses a crowd of strains.Horizontal genetic factor transfer may donate to the observed assortment in pathogenic strains,while sexual reproduction is unknown in the FOSC.Fusarium wilt is a notorious disease on several crops worldwide.Yield loss caused by this pathogen is huge,and significant to destroy crop yields annually,thereby affecting the producer countries in various continents of the world.The disease is also resistant to various synthetic chemical fungicides.However,excessive use of synthetic fungicides during disease control could be lethal to humans,animals,and plants.This calls for alternative eco-friendly management of this disease by targeting the biofilms formation and finally suppressing this devastating phytopathogen.In this review,we,therefore,described the damage caused by Fusarium wilt disease,the concept of filamentous fungal biofilms,classical control strategies,sustainable disease control strategies using essential oils,and prevention and control of vegetables Fusarium wilt diseases.Abubakar Abubakar Ismaila Khairulmazmi Ahmad Yasmeen Siddique Muhammad Aswad Abdul Wahab Abdulaziz Bashir Kutawa Adamu Abdullahi Syazwan Afif Mohd Zobir Arifin Abdu Siti Nor Akmar Abdullah 2023Horticultural Plant Journal2023,9,1:2
14Conceptual design,modeling and compliance characterization of a novel 2-DOF rotational pointing mechanism for fast steering mirror显示文摘In this paper,a novel 2-DOF rotational pointing mechanism(RPM)is designed inspired by the guidelines of the graphical approach.The mechanism integrates with a fast steering mirror(FSM)for compensating pointing errors of a laser beam.The design intends to achieve an angular travel of±10 mrad and steers a 25 mm mirror aperture.A planar flexure with beam flexures accompanied in parallel with an axial flexure build-up mechanism configuration.Compliant mechanismbased RPM ensures high precision and compactness.Compliance characteristics are established based on the stiffness matrix method for four different planar flexure layouts.One layout with best in-plane rotational compliance is then assessed for performance sensitivity to mechanism dimension parameters and parasitic error,thus informing the design space.Rotational stiffness in both the inplane rotational axes and stress is determined based on finite element analysis(FEA).The wire electrical discharge machining(EDM)is employed for developing the proof of concept for the RPM and is then assembled in FSM.Experiments are conducted to determine the rotational stiffness and angular travel about both in-plane rotational axes.Comparison among theoretical,numerical and experiments reveal excellent linearity of rotational stiffness along the rotational travel range.The maximum theoretical error is less than 5.5%compared with FEA while,the experimental error has a mean of 5%and 3%for both rotational axes thus satisfying the intended design requirement.Muhammad ABID Jingjun YU Yan XIE Abdus SALAM 2020Chinese Journal of Aeronautics2020,33,12:2
15孟加拉国Bhanugach西部保育林用地类型变化(英文)显示文摘应用遥感和地理信息系统调查了孟加拉国Sylhet林业分局所辖的Bhanugach西部保育林从1988年到2006年间用地类型的变化。应用了监督和非监督两种方法,用全球定位系统搜集了地面控制点。地理信息系统软件制成地图。结果表明,植被覆盖从1988年的1826hm2大幅地降低到1996年的1714.85hm2,随着协同管理措施的实施,植被覆盖自1996年后逐年增长到2006年的1847.83hm2。在没有其他类型的用地转变成裸地的情况下,裸地变化与植被覆盖间成反比。18年间水体面积从1988年的307.67hm2增加到1996年379.53hm2,96-97年间略有下降,1997年以后直到2006年基本保持不变。本文还提出了将遥感技术和地理信息系统应用于用地类型变化及地理信息系统数据库创建的一些建议。Md. Abdul Halim Abdus Shahid Mohammad Shaheed Hossain Chowdhury Mst. Nazmun Nahar Md. Shawkat Islam Sohel Nuruddin Md. Jahangir Masao Koike 2008Journal of Forestry Research2008,19,3:2
16Fatigue before, during and after antiviral therapy of chronic hepatitis C: Results from the Virahep-C study显示文摘Souvik Sarkar Zhen Jiang Donna M. Evon Abdus S. Wahed Jay H. Hoofnagle 2012Journal of Hepatology2012,,5:2
17Aflatoxin B1-induced hepatocellular carcinoma in developing countries:Geographical distribution, mechanism of action and prevention (Review)显示文摘Abdu Hamid Isaias Tesfamariam Yucheng Zhang Zhen Zhang 2013Oncology Letters2013,,4:2
18Fluorosis Caused Cellular Apoptosis and Oxidative Stress of Rat Kidneys显示文摘SONG Yang WANG Jin-cheng XU Hui DU Zhen-wu ZHANG Gui-zhen SELIM Hamid Abdu LI Guang-sheng WANG Qing GAO Zhong-li 2013Chemical Research in Chinese Universities2013,29,2:2
19Use of Horton Infiltration Model in Estimating Infiltration Characteristics of an Alfisol in the Northern Guinea Savanna of Nigeria显示文摘A. Abdulkadir M. N. Wuddivira N. Abdu O. J. Mudiare 2011Journal of Agricultural Science and Technology(A)2011,1,6:2
20Assessment of ecosystem services value in response to prevailing and future land use/cover changes in Lahore,Pakistan显示文摘Land use/cover changes(LUCCs)significantly affect ecosystem services(ESs)and their corresponding monetary value.ESs can be evaluated to analyze the ecological and environmental changes caused by LUCCs.This research aims to estimate variations in the ecosystem services value(ESV)due to LUCCs in Lahore of Pakistan,and to offer information and recommendations to policy-makers concerned with the economic improvement of metropolis areas.We first investigated the historical LUCCs from 1990 to 2019,and then simulated the future land use/cover in 2030 and 2050 based on the CA-Markov model under three scenarios,including business-as-usual(BAU),rapid economic growth(REG),and coordinated environmental sustainability(CES).Subsequently,we evaluated the ESV from 1990 to 2050 and evaluated the historical and potential future ESV changes induced by LUCCs during 1990–2019 and 2019–2050,respectively.The results showed that,land use/cover exhibited an increase in built-up land and decreases in vegetation,water body,and unused land both in the past and future.The net ESV decreased from 58.26 million USD in 1990 to 50.31 million USD in 2019.In 2050,the decrease in ESV is most rapid under the REG scenario(decrease ESV of 7.13 million USD and decrease percentage of 14.18%),followed by the BAU(decrease ESV of 5.61 million USD and decrease percentage of 11.15%)and CES(decrease ESV of 5.18 million USD and decrease percentage of 10.30%)scenarios.For each ecosystem service type,the ESV of waste treatment decreased by 18.37%from 1990 to 2019,followed by soil formation and conservation(17.52%),biodiversity and maintenance(13.23%),climate regulation(11.80%),food production(11.69%),hydrological regulation(11.11%),and aesthetic value(3.07%).These outcomes indicate that continuous land use/cover planning should focus on regenerating aquatic areas and vegetation restoration.Mobeen Akhtar Yuanyuan Zhao Guanglei Gao Qudsia Gulzar Azfar Hussain Abdus Samie 2020Regional Sustainability2020,1,1:2
返回顶部 每页显示:
共16页 首页 上一页 第1页 下一页 末页 /16 跳转

网站首页 | 关于我们 | 联系我们 | 产品服务 | 客服中心 | 广告服务 | 版权声明 | 网站联盟 | 友情链接 | 售卡网点

版权所有© 渝B2-20050021-1 渝公网安备 50019002500403号 违法和不良信息举报中心

互联网出版许可证 新出网证(渝)字10号 全国400电话 - 免长途话费