维普中文期刊产品整合服务
87篇 您的检索式:作者名="Muhammad Sajid"
    题名 作者 年代 出处 被引量
1社区化新零售的布局选址与优化发展研究——以南京市盒马鲜生为例显示文摘社区化新零售是新兴的商业模式,也是商业与社区互动的重要场域,值得从城市空间视角深入探究。基于南京市盒马鲜生及相关兴趣点(point of interest,POI)与兴趣面(area of interest,AOI)数据,综合运用空间分析、定量统计、实地调研等方法,解析盒马鲜生的服务类型及对象、空间布局特征、区位选址因素,并提出优化发展建议。研究发现:①南京市盒马鲜生服务对象以社区为主,酒店、写字楼为辅;服务客户以具有一定经济基础和消费能力的中青年人群为主。②空间布局总体呈现南—北走向的主城区+近郊区的'5+7三组团'格局,均为'点'状门店+不规则'面'状服务区相结合的'中心—外围'结构,实际配送范围与3 km缓冲区存在差异。③区位选址主要受社区密度和交通环境的影响,对商圈、地价具有依赖性,竞争对手对门店选址影响较小;主要位于社区与道路密度中高值区、商圈边缘地带、主干道两侧及地价中等区域,并利用面状服务区延伸服务范围,获取更多潜在目标客户群。最后从消费群体、运营成本、品牌竞争3个方面探索其区位选址的影响机制,并基于区位选址特征提出优化发展建议。金安楠 李钢 王建坡 Muhammad Sajid MEHMOOD 于悦 林喆 2020地理科学进展2020,39,12:17
2Systematic review and meta-analysis on the prophylactic role of non-steroidal anti-inflammatory drugs to prevent post-endoscopic retrograde cholangiopancreatography pancreatitis显示文摘AIM: To critically appraise the published randomized, controlled trials on the prophylactic effectiveness of the non-steroidal anti-inflammatory drugs(NSAIDs), in reducing the risk of post-endoscopic retrograde cholangiopancreatography(ERCP) pancreatitis. METHODS: A systematic literature search(MEDLINE, Embase and the Cochrane Library, from inception of the databases until May 2015) was conducted to identify randomized, clinical trials investigating the role of NSAIDs in reducing the risk of post-ERCP pancreatitis. Random effects model of the meta-analysis was carried out, and results were presented as odds ratios(OR) with corresponding 95%CI.RESULTS: Thirteen randomized controlled trials on 3378 patients were included in the final meta-analysis. There were 1718 patients in the NSAIDs group and 1660 patients in non-NSAIDs group undergoing ERCP. The use of NSAIDs(through rectal route or intramuscular route) was associated with the reduced risk of post-ERCP pancreatitis [OR, 0.52(0.38-0.72), P = 0.0001]. The use of pre-procedure NSAIDs was effective in reducing approximately 48% incidence of post-ERCP pancreatitis, number needed to treat were 16 with absolute risk reduction of 0.05. But the risk of post-ERCP pancreattis was reduced by 55% if NSAIDs were administered after procedure. Similarly, diclofenac was more effective(55%) prophylactic agent compared to indomethacin(41%).CONCLUSION: NSAIDs seem to have clinically proven advantage of reducing the risk of post-ERCP pancreatitis.Muhammad S Sajid Amir H Khawaja Mazin Sayegh Krishna K Singh Zinu Philipose 2015World Journal of Gastrointestinal Endoscopy2015,7,19:14
3Systematic review of oncological outcomes following laparoscopic vs open total mesorectal excision显示文摘AIM: To systematically analyze the randomized trials comparing the oncological and clinical effectiveness of laparoscopic total mesorectal excision(LTME) vs open total mesorectal excision(OTME) in the management of rectal cancer.METHODS: Published randomized, controlled trials comparing the oncological and clinical effectiveness of LTME vs OTME in the management of rectal cancer were retrieved from the standard electronic medical databases. The data of included randomized, controlled trials was extracted and then analyzed according to the principles of meta-analysis using RevMan? statistical software. The combined outcome of the binary variables was expressed as odds ratio(OR) and the combined outcome of the continuous variables waspresented in the form of standardized mean difference(SMD). RESULTS: Data from eleven randomized, controlled trials on 2143 patients were retrieved from the electronic databases. There was a trend towards the higher risk of surgical site infection(OR = 0.66; 95%CI: 0.44-1.00; z = 1.94; P < 0.05), higher risk of incomplete total mesorectal resection(OR = 0.62; 95%CI: 0.43-0.91; z = 2.49; P < 0.01) and prolonged length of hospital stay(SMD,-1.59; 95%CI:-0.86--0.25; z = 4.22; P < 0.00001) following OTME. However, the oncological outcomes like number of harvested lymph nodes, tumour recurrence and risk of positive resection margins were statistically similar in both groups. In addition, the clinical outcomes such as operative complications, anastomotic leak and all-cause mortality were comparable between both approaches of mesorectal excision.CONCLUSION: LTME appears to have clinically and oncologically measurable advantages over OTME in patients with primary rectal cancer in both short term and long term follow ups.Muhammad Shafique Sajid Adil Ahamd William FA Miles Mirza Khurrum Baig 2014World Journal of Gastrointestinal Endoscopy2014,6,5:7
4菜鸟驿站空间分布与城市发展关系研究——以东莞市为例显示文摘本文基于东莞市菜鸟驿站的POI数据,借助ArcGIS软件,探究其社会经济信息以及空间分布格局.同时利用SPSS建立回归模型,分析城市人口数与企业数对驿站布局的影响并建立了菜鸟驿站预测城市人口数量的基本公式.结果显示:一、东莞市中97%的菜鸟驿站依托于商店,美宜佳便利店为其主要合作方,依托方与驿站间具有互利共生的关系.社区、企业为驿站主要服务对象.布点遵循就近原则,80%的网点在距服务对象70 m以内;二、菜鸟驿站分布呈现与城市形态一致的西北—东南走向的多核心模式,以镇街为单位形成小范围集中,各中心地间相隔较远,冷热区整体呈现伞状分布;三、菜鸟驿站数与常住人口和工商企业个体数具有正比例关系,可作为探测城市增长与社会经济变迁的灵敏探针.通过对物流终端菜鸟驿站的空间特征及影响因素分析,对我国城市服务性设施的合理规划布局具有指导和借鉴意义,同时可为研究和预测未来城市发展和社会经济现象做出贡献.周佼 李钢 杨兰 刘倩 Muhammad Sajid Mehmood 2019西部人居环境学刊2019,34,5:7
5Electrochemical CO_(2) reduction to C_(2+) products using Cu-based electrocatalysts:A review显示文摘With the disruptive carbon cycle being blamed for global warming,the plausible electrocatalytic CO_(2)reduction reaction(CO_(2)RR)to form valuable C_(2+)hydrocarbons and feedstock is becoming a hot topic.Cu-based electrocatalysts have been proven to be excellent CO_(2)RR alternatives for high energy value-added products in this regard.However,the selectivity of CO_(2)RR to form C_(2+)products via Cu-based catalysts suffers from a high overpotential,slow reaction kinetics,and low selectivity.This review attempts to discuss various cutting-edge strategies for understanding catalytic design such as Cu-based catalyst surface engineering,tuning Cu bandgap via alloying,nanocatalysis,and the effect of the electrolyte and pH on catalyst morphology.The most recent advances in in situ spectroscopy and computational techniques are summarized to fully comprehend reaction mechanisms,structural transformation/degradation mechanisms,and crystal facet loss with subsequent effects on catalyst activity.Furthermore,approaches for tuning Cu interactions are discussed from four key perspectives:single-atom catalysts,interfacial engineering,metal-organic frameworks,and polymer-incorporated materials,which provide new insights into the selectivity of C_(2+)products.Finally,major challenges are outlined,and potential prospects for the rational design of catalysts for robust CO_(2)RR are proposed.The integration of catalytic design with mechanistic understanding is a step forward in the promising advancement of CO_(2)RR technology for industrial applications.Touqeer Ahmad Shuang Liu Muhammad Sajid Ke Li Mohsin Ali Liang Liu Wei Chen 2022Nano Research Energy2022,1,2:5
6Use of health-related quality of life tools in hepatobiliary surgery显示文摘BACKGROUND:The objective of this article is to review the literature and discuss the various tools used in hepatobiliary surgery for the measurement of health related quality of life (HR-QOL) and highlight various outcome variables that affect the HR-QOL among patients with common hepatobiliary disorders. DATA SOURCES: We reviewed HR-QOL articles published in the last 20 years on different hepatobiliary curative or palliative procedures in all languages. RESULTS: HR-QOL is a questionnaire tool which is utilized to assess the changes in the health status of patients after a hepatobiliary intervention. These surveys are of increasingly importance, as health care providers are challenged to justify treatment approaches and rationale for any surgical intervention. These HR-QOL tools are very helpful for the evaluation of subjective outcome of common hepatobiliary procedures like gastrointestinal quality of life index (GIQLI) for cholecystectomy, functional assessment in cancer therapy (FACT) for liver resection, short form 36 (SF-36) for liver transplantation, and quality of life questionnaire for patients with pancreatic cancer (QLQ-PAN). CONCLUSIONS: Use of validated and reliable health instruments in hepatobiliary surgery is directed at measuring the impact in a reproducible and valid fashion. Curative or palliative procedures should be offered to the patients of hepatobiliary disorders after the assessment by HR-QOL tools. Because the impairments of function that may occur after different operations vary considerably, an operation-specific assessment of HR-QOL for each type of surgical procedure is becoming an essential principle to follow in a successful healthcare system.Muhammad Shafique Sajid Mawara Iftikhar Jasmin Rimple Mirza Khurrum Baig 2008Hepatobiliary & Pancreatic Diseases International2008,7,2:5
7Robotic total meso-rectal excision for rectal cancer: A systematic review following the publication of the ROLARR trial显示文摘AIM To compare outcomes in patients undergoing rectal resection by robotic total meso-rectal excision(RTME) vs laparoscopic total meso-rectal excision(LTME).METHODS Standard medical electronic databases such as Pub-Med, MEDLINE, EMBASE and Scopus were searched to find relevant articles. The data retrieved from all types of included published comparative trials in pati-ents undergoing RTME vs LTME was analysed using the principles of meta-analysis. The operative, post-operative and oncological outcomes were evaluated to assess the effectiveness of both techniques of TME. The summated outcome of continuous variables was expressed as standardized mean difference(SMD) and dichotomous data was presented in odds ratio(OR).RESULTS One RCT(ROLARR trial) and 27 other comparative studies reporting the non-oncological and oncological outcomes following RTME vs LTME were included in this review. In the random effects model analysis using the statistical software Review Manager 5.3, the RTME was associated with longer operation time(SMD, 0.46; 95%CI: 0.25, 0.67; z = 4.33; P = 0.0001), early passage of first flatus(P = 0.002), lower risk of conversion(P = 0.00001) and shorter hospitalization(P = 0.01). The statistical equivalence was seen between RTME and LTME for non-oncological variables like blo-od loss, morbidity, mortality and re-operation risk. The oncological variables such as recurrence(P = 0.96), number of harvested nodes(P = 0.49) and positive circumferential resection margin risk(P = 0.53) were also comparable in both groups. The length of distal resection margins was similar in both groups. CONCLUSION RTME is feasible and oncologically safe but failed to demonstrate any superiority over LTME for many sur-gical outcomes except early passage of flatus, lower risk of conversion and shorter hospitalization.Katie Jones Mohamed G Qassem Parv Sains Mirza K Baig Muhammad S Sajid 2018World Journal of Gastrointestinal Oncology2018,10,11:4
8Analysis of the effect of passive measures on the energy consumption and zero-energy prospects of residential buildings in Pakistan显示文摘Climate change can adversely impact the thermal comfort and energy efficiency of the buildings stock. The South Asian countries are particularly vulnerable to the adverse impacts of climate change specially in the form of rising temperatures and increasing frequency of heat waves. The passive building design measures can be useful in mitigating and adapting to the climate change by increasing energy efficiency and reducing greenhouse gas (GHG) emissions. In this study various passive climate change adaptation measures (PCAMs) have been used individually and in form of combinations in order to analyze their impact on the energy efficacy of residential buildings in Pakistan. It has been found that the natural ventilation and front green wall are the most efficient options for reducing the overall energy consumption. By implementation of these PCAMs, cooling demand can be decreased by 27.75% while heating demand can be reduced by 35%. Secondly, the prospect of net zero-energy building and reduced CO2 emissions are also studied. It has been shown that building can achieve net-zero energy on an annual basis at every orientation and it can attain the status of nearly zero-energy building on a monthly basis. Moreover, emitted CO2 can be reduced by 31% by using the renewable energy.Muhammad Wasim Anwar Zaib Ali Abdullah Javed Emad Ud Din Muhammad Sajid 2021Building Simulation2021,14,4:3
9Single-Incision Laparoscopic Cholecystectomy Versus Conventional Laparoscopic Cholecystectomy: Meta-analysis and Systematic Review of Randomized Controlled Trials显示文摘Muhammad S. Sajid Nikhil Ladwa Lorain Kalra Kristian K. Hutson Krishna K. Singh Mazin Sayegh 2012World Journal of Surgery2012,,11:3
10Spatial Pattern and Influencing Factor Analysis of Attended Collection and Delivery Points in Changsha City, China显示文摘Attended collection and delivery points are vital components of ‘last-mile logistics’.Based on point of interest(POI) data for Cainiao Stations and China Post stations in Changsha City, China, this paper provides a detailed exploration of the basic features, spatial distribution, and location influencing factors of attended collection and delivery points.Specifically, analyses of the types, service objects and location distributions of the attended collection and delivery points alongside a discussion of their spatial pattern and influencing factors provides a reference for their general geographic layout and characteristics.The findings of this study indicate that: 1) The main mode of operation of attended collection and delivery points is franchises, with other modes of operation rely on supermarkets and other individual shop types.2) The main service targets of attended collection and delivery points are communities, schools, and businesses, followed by townships, enterprises, scenic spots, and administrative units.3) Approximately 77.44% of the attended collection and delivery points are located near the exits of service areas;others are situated in the centre of the service areas.For the Cainiao Stations, 80% are located within 125 m of the exit;for the China Post stations, 80% are located within 175 m of the exit.4) The spatial distribution of the attended collection and delivery points in Changsha is unbalanced, with ‘more centre and fewer surrounding’.The centre is an ‘inverted triangle’, and the edge is an ‘orphan’, showing a northwest-southeast orientation and symmetrical along the axis.The layout of the attended collection and delivery points forms three core areas, and the number of sites decreases with the distance from the core.5) The number and distribution of the attended collection and delivery points are strongly consistent with the regional economic development level, population, and roadway system traffic convenience.Most attended collection and delivery points are on residential, scientific and educational, and commercial and financial land.XUE Shuyan LI Gang YANG Lan LIU Ling NIE Qifan Muhammad Sajid MEHMOOD 2019Chinese Geographical Science2019,29,6:3
11Role of SNPs in determining QTLs for major traits in cotton显示文摘A single nucleotide polymorphism is the simplest form of genetic variation among individuals and can induce minor changes in phenotypic,physiological and biochemical characteristics.This polymorphism induces various mutations that alter the sequence of a gene which can lead to observed changes in amino acids.Several assays have been developed for identification and validation of these markers.Each method has its own advantages and disadvantages but genotyping by sequencing is the most common and most widely used assay.These markers are also associated with several desirable traits like yield,fibre quality,boll size and genes respond to biotic and abiotic stresses in cotton.Changes in yield related traits are of interest to plant breeders.Numerous quantitative trait loci with novel functions have been identified in cotton by using these markers.This information can be used for crop improvement through molecular breeding approaches.In this review,we discuss the identification of these markers and their effects on gene function of economically important traits in cotton.MAJEED Sajid RANA Iqrar Ahmad ATIF Rana Muhammad ALI Zulfiqar HINZE Lori AZHAR Muhammad Tehseen 2019Journal of Cotton Research2019,2,1:2
12Immunomodulatory effect of various anti-parasitics:a review显示文摘SAJID M S IQBAL Z MUHAMMAD G 2006Parasitology2006,132,3:1
13Effect of Ivermectin on the cellular and humoral immune responses of rabbits 显示文摘Sajid M S Iqbal Z Muhammad G 2007Life Sciences2007,80,21:1
14A Study of the Effect of the Loss Function on Bayes Estimate,Posterior Risk and Hazard Function for Lindley Distribution 显示文摘Sajid Alia Muhammad Aslamb Syed Mohsin Ali Kazmic 2013Applied Mathematical Modelling2013,,37:1
15Formulation and evaluation of natural gum-based sustained release matrix tablets of flurbiprofen using response surface methodology显示文摘Syed N H S Sajid A Muhammad A C 2009Drug Development and Industrial Pharmacy2009,35,12:1
16Genetic variability for yield and fiber related traits in genetically modified cotton显示文摘Background:Cotton(Gossypium hirsutum L.)is grown for fiber and oil purposes in tropical and sub-tropical areas of the world.Pakistan is the 4th largest producer of cotton.It has a significant contribution in the GDP of Pakistan.Therefore,the present study was performed to assess the genetic variations and genetic diversity of yield and fiber quality traits in cotton and to analyze the associations present among them.Results:Analysis of variance exhibited significant variation for all studied traits except total number of nodes and the height to node ratio.The phenotypic coefficient of variation was higher than the genotypic coefficient of variation for all studied traits.Plant height,monopodial branches,total number of bolls,lint index,seed index,and seed cotton yield displayed high heritabilities in a broad sense with maximum genetic advanee.Correlation analysis revealed that seed cotton yield had a significant positive association with plant height,the nu mber of monopodial branches,the nu mber of sympodia I branches,ginning outturn(GOT),the number of bolls,seed per boll,seed index,uniformity index,the number of sympodial branches,reflectance,and seed index at the genotypic level while a significant positive relationship was observed with plant height,the number of sympodial branches,boll number,and GOT.Plant height,monopodial branches,GOT,boll weight,seeds per boll,and short fiber index exerted direct positive effects on seed cotton yield.The first 6 principal component analysis(PCs)out of the total fourteen PCs displayed eigenvalues(>1)and had maximum share to total variability(82.79%).The attributes that had maximum share to total divergence in eluded plant height,uniformity index,the nu mber of sympodial branches,seed per boll,GOT,seed cotton yield,and short fiber index.Conclusion:The genotype AA-802,IUB-13,FH-159,FH-458,and CIM-595 were genetically diverse for most of the yield and fiber quality traits and could be utilized for the selection of better performing genotypes for further improvement.SAHAR Adeela ZAFAR Muhammad Mubashar RAZZAQ Abdul MANAN Abdul HAROON Muhammad SAJID Sunaina REHMAN Abdul MO Huijuan ASHRAF Muhammad REN Maozhi SHAKEEL Amir YUAN Youlu 2021Journal of Cotton Research2021,4,3:1
17Immunomodulatory effect of various anti-parasitics:a review显示文摘Sajid M S Iqbal Z Muhammad G 2006Parasitology2006,132,3:1
18Formulation and evaluation of natural gum-based sustained release matrix tab lets of flurbiprofen using response surface methodology 显示文摘Syed N H S Sajid A Muhammad A C 2009Drug Development and Industrial Pharmacy2009,35,12:1
19Evaluation of microstructure and mechanical properties of squeeze overcast Al7075-Cu composite joints显示文摘Al7075-Cu composite joints were prepared by the squeeze overcast process.The effects of melt temperature,die temperature,and squeeze pressure on hardness and ultimate tensile strength(UTS)of squeeze overcast Al7075-Cu composite joints were studied.The experimental results depict that squeeze pressure is the most significant process parameter affecting the hardness and UTS.The optimal values of UTS(48 MPa)and hardness(76 HRB)are achieved at a melt temperature of 800℃,a die temperature of 250℃,and a squeeze pressure of 90 MPa.Scanning electron microscopy(SEM)shows that fractured surfaces show flatfaced morphology at the optimal experimental condition.Energy-dispersive spectroscopy(EDS)analysis depicts that the atomic weight percentage of Zn decreases with an increase in melt temperature and squeeze pressure.The optimal mechanical properties of the Al7075-Cu overcast joint were achieved at the Al2Cu eutectic phase due to the large number of copper atoms that dispersed into the aluminum melt during the solidification process and the formation of strong intermetallic bonds.Gray relational analysis integrated with the Taguchi method was used to develop an optimal set of control variables for multi-response parametric optimization.Confirmatory tests were performed to validate the effectiveness of the employed technique.The manufacturing of squeeze overcast Al7075-Cu composite joints at optimal process parameters delivers a great indication to acknowledge a new method for foundry practitioners to manufacture materials with superior mechanical properties.Muhammad Waqas Hanif Ahmad Wasim Muhammad Sajid Salman Hussain Muhammad Jawad Mirza Jahanzaib 2023China Foundry2023,20,1:1
20Can demography predict academic dishonest behaviors of students? a case of Pakistan 显示文摘Mian Sajid Nazir Muhammad Shakeel Aslam Muhammad Musarrat Nawaz 2011International Education Studies2011,4,2:1
返回顶部 每页显示:
共5页 首页 上一页 第1页 下一页 末页 /5 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