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腹部平片在评估非外伤急诊病人中的作用

国际医学放射学杂志 2008年第A6期31卷 488-488页

作者： Z.S.Kellow M.MacInnes D.Kurzencwyg S.rawal r.jaffer B.Kovaci-na 赵静 Department of radiology Royal Victoria HospitalMcGill University687 Pine Ave WMontrealQCCanada H3A 1A1.

目的探讨腹部平片对非外伤急诊病人的诊断作用。方法经专业机构负责人同意,回顾性分析6个月以来非外伤急诊病人的腹部平片和病历记录。

关键词：急诊病人诊断作用腹部平片检查病历记录影像学检查病人数量急诊科医生胃肠道造影导管位置

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CFO与供应链管理

新理财（公司理财） 2024年第1期 83-85页

作者： Thomas G.Canace Ayaz jaffer Paul E.Juras 不详

CFO和财务团队完全有能力应对长期供应链扰动给现金流和盈利能力带来的挑战。在经历了新冠疫情带来的供应链扰动后,首席财务官(CFO)和企业都在猜测供应链问题引发的一系列影响何时才能过去。但供应链问题并未随疫情的结束而结束,仍在不... 详细信息

CFO和财务团队完全有能力应对长期供应链扰动给现金流和盈利能力带来的挑战。在经历了新冠疫情带来的供应链扰动后,首席财务官(CFO)和企业都在猜测供应链问题引发的一系列影响何时才能过去。但供应链问题并未随疫情的结束而结束,仍在不断加剧,导致企业无力满足新冠疫情期间被抑制的客户需求,也阻碍了企业的收入增长。

关键词：供应链管理现金流财务团队 CFO 供应链问题盈利能力客户需求疫情

Matching dependencies： semantics and query answering

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Frontiers of Computer Science 2012年第3期6卷 278-292页

作者： jaffer GArDEZI Leopoldo BErTOSSI Iluju KIrINGA School of Information Technology and Engineering University of Ottawa Ottawa ON K1N 6N5 Canada School of Computer Science Carleton University Ottawa ON KIS 5B6 Canada

Matching dependencies （MDs） are used to declaratively specify the identification （or matching） of cer- tain attribute values in pairs of database tuples when some similarity conditions on other values are satisfied. Their en- forcement can be seen as a natural generalization of entity resolution. In what we call the pure case of MD enforce- ment, an arbitrary value from the underlying data domain can be used for the value in common that is used for a match- ing. However, the overall number of changes of attribute val- ues is expected to be kept to a minimum. We investigate this case in terms of semantics and the properties of data clean- ing through the enforcement of MDs. We characterize the in- tended clean instances, and also the clean answers to queries, as those that are invariant under the cleaning process. The complexity of computing clean instances and clean query an- swering is investigated. Tractable and intractable cases de- pending on the MDs are identified and characterized.

关键词： databases data cleaning duplicate and entityresolution integrity constraints matching dependencies

Nonoperative management of gastrointestinal malignancies in era of neoadjuvant treatment

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Chinese Journal of Cancer research 2023年第1期35卷 44-57页

作者： Nan Chen jaffer A Ajani Aiwen Wu Key Laboratory of Carcinogenesis and Translational research(Ministry of Education/Bejing) Gastrointestinal Cancer CenterPeking University Cancer Hospital&InstituteBeijing 100142China Department of Gastrointestinal Medical Oncology The University of Texas MD Anderson Cancer CenterHouston 77030USA

Cancers derived from the gastrointestinal(GI)tract are often treated with radical surgery to achieve a ***,recent advances in the management of GI cancers involve the use of a combination of neoadjuvant radiation and chemotherapy followed by surgical intervention to achieve improved local control and ***,a small proportion of patients with highly sensitive tumors achieved a pathological complete response(pCr)(no residual tumor cells in the resected specimen)to neoadjuvant chemoradiation therapy(nCrT).The desire for organ preservation and avoidance of surgical morbidity brings the idea of a nonoperative management(NOM)*** of the different nature of tumor biology,GI cancers present diverse responses to nCrT,ranging from high sensitivity(anal cancer)to low sensitivity(gastric/esophageal cancer).There is an increasing attention to NOM of localized GI cancers;however,without the use of biomarkers/imaging parameters to select such patients,NOM will remain a ***,this review intends to summarize some of the recent updates from the aspect of current nCrT regimens,criteria for patient selection and active surveillance *** also hope to review significant sequelae of radical surgery and the complications of nCrT to clarify the directions for optimization of nCrT and NOM for oncologic outcomes and quality of life.

关键词： Nonoperative management gastrointestinal malignancies neoadjuvant treatment

Is endoscopic ultrasound examination necessary in the management of esophageal cancer?

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World Journal of Gastroenterology 2017年第5期23卷 751-762页

作者： Tomas DaVee jaffer A Ajani Jeffrey H Lee Department of Gastroenterology Hepatology and NutritionDivision of Internal MedicineThe University of Texas MD Anderson Cancer Center Department of Gastrointestinal Medical Oncology Division of Cancer MedicineThe University of Texas MD Anderson Cancer Center

Despite substantial efforts at early diagnosis, accurate staging and advanced treatments, esophageal cancer(EC) continues to be an ominous disease worldwide. risk factors for esophageal carcinomas include obesity, gastroesophageal reflux disease, hard-alcohol use and tobacco smoking. Five-year survival rates have improved from 5% to 20% since the 1970 s, the result of advances in diagnostic staging and treatment. As the most sensitive test for locoregional staging of EC, endoscopic ultrasound(EUS) influences the development of an optimal oncologic treatment plan for a significant minority of patients with early cancers, which appropriately balances the risks and benefits of surgery, chemotherapy and radiation. EUS is costly, and may not be available at all centers. Thus, the yield of EUS needs to be thoughtfully considered for each patient. Localized intramucosal cancers occasionally require endoscopic resection(Er) for histologic staging or treatment; EUS evaluation may detect suspicious lymph nodes prior to exposing the patient to the risks of Er. Although positron emission tomography(PET) has been increasingly utilized in staging EC, it may be unnecessary for clinical staging of early, localized EC and carries the risk of false-positive metastasis(over staging). In EC patients with evidence of advanced disease, EUS or PET may be used to define the radiotherapy field. Multimodality staging with EUS, crosssectional imaging and histopathologic analysis of Er, remains the standard-of-care in the evaluation of early esophageal cancers. Herein, published data regarding use of EUS for intramucosal, local, regional and metastatic esophageal cancers are reviewed. An algorithm to illustrate the current use of EUS at The University of Texas MD Anderson Cancer Center is presented.

关键词： Esophageal squamous cell carcinoma Endosonography Echoendoscope Esophagus cancer Esophageal adenocarcinoma

Endoscopic management of esophageal cancer

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World Journal of Gastrointestinal Oncology 2019年第10期11卷 830-841页

作者： Osman Ahmed jaffer A Ajani Jeffrey H Lee Department of Gastroenterology Hepatology and NutritionUniversity of Texas MD Anderson Cancer CenterHoustonTX 77030United States Department of Medical Oncology University of Texas MD Anderson Cancer CenterHoustonTX 77030United States

Esophageal cancer(EC)generally consists of squamous cell carcinoma(which arise from squamous epithelium)and adenocarcinoma(which arise from columnar epithelium).Due to the increased recognition of risk factors associated with EC and the development of screening programs,there has been an increase in the diagnosis of early *** EC is amenable to curative therapy by endoscopy,which can be performed by either endoscopic resection or endoscopic *** resection consists of either endoscopic mucosal resection(preferred in cases of adenocarcinoma)or endoscopic submucosal dissection(preferred in cases of squamous cell carcinoma).Endoscopic ablation can be performed by either radiofrequency ablation,cryotherapy,argon plasma coagulation or photodynamic therapy,amongst *** can also assist in the management of complications post-esophageal surgery,such as anastomotic leaks and ***,there is a growing role for endoscopy to manage end-of-life palliative symptoms,especially *** growing use of esophageal stents,debulking therapy and dilation can assist in improving a patient’s quality of *** this review,we examine the multiple roles of endoscopy in the management of patients with EC.

关键词： Esophageal cancer Endoscopy resection Ablation Stent Barrett’s esophagus

Sn_(4)P_(3)-induced crystalline/amorphous composite structures for enhanced sodium-ion battery anodes

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Journal of Materials Science & Technology 2020年第20期52卷 73-80页

作者： jaffer Saddique Xu Zhang Tianhao Wu Heng Su Shiqi Liu Dian Zhang Yuefei Zhang Haijun Yu College of Materials Science and Engineering Key Laboratory of Advanced Functional Materials of Education Ministry of ChinaBeijing University of TechnologyBeijing 100124China Institute of Microstructure and Property of Advanced Materials Beijing University of TechnologyBeijing 100124China

The optimization of anode materials such as Sn,P and Sn4P3 in terms of capacity and cyclability is crucial to improve the overall performance of sodium-ion ***,the delicate fabrication of these materials,including the balanced crystalline/amorphous domains,reasonable particle size and distribution,complementary components exhibiting synergetic reactions,among others,still greatly retards the realization of maximum ***,a series of Sn/P-based composite materials with a plum pudding configuration were fabricated to achieve controlled crystalline/amorphous structures as well as optimized size and distribution in a carbon *** using a facile and low-cost ball milling method,the structural transformation of Sn4P3 into phase-separated crystalline Sn and amorphous P in a carbonaceous framework can be finely controlled,producing a series of binary(Sn4 P3/C),quaternary(Sn4P3/Sn/P/C) and ternary(Sn/P/C) *** to the complementary components,crystalline/amorphous adjustment,crystallite sizes and well-integrated interfaces,the quaternary Sn4P3/Sn/P/C composite showed the best electrochemical performance,with a noticeable long-cycle performance of 382 mA hg-1 and 86% capacity retention for nearly 300 *** from binary and ternary composites,the discharge of quaternary composite generates no noticeable signals of Na15Sn4 and Na3 P in the ex-situ X-ray diffraction patterns,suggesting the crystallite growth of sodiation products can be ***,Sn4 P3 in the quaternary composite can be partially regenerated in the desodiation reaction,implying the significant short-range interaction and thus better synergetic reactions between Sn and P *** results demonstrate that the design and organization of crystalline/amorphous structures can serve as an efficient strategy to develop novel electrode materials for sodium ion batteries.

关键词： Sodium ion battery Tin phosphides Anode materials Composite structure reaction mechanism

Small and Medium Size Enterprise Financing in Tanzania

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Small and Medium Size Enterprise Financing in Tanzania

作者： SHABANI jaffer JUMANNE（沙巴尼）南昌大学

学位级别：硕士

目前有一个了解企业获得资金的大利益,而中小型企业特别是(中小企业)融资。然而,各国中小企业的融资模式还不是很清楚,例如,很少是关于股票,债券,以及企业间的跨国家的中小企业融资的相对重要性而闻名。这次关于坦桑尼亚中小企业融资本... 详细信息

目前有一个了解企业获得资金的大利益,而中小型企业特别是(中小企业)融资。然而,各国中小企业的融资模式还不是很清楚,例如,很少是关于股票,债券,以及企业间的跨国家的中小企业融资的相对重要性而闻名。这次关于坦桑尼亚中小企业融资本文的重点。在十九世纪和二十世纪初中小企业在改善就业的平民大量国家的经济和创造一个非常重要的一部分,但在目前的年中小企业面临重大挑战的资金,协助其活动。据了解,一个令人印象深刻的地方金融机构提供各种出现中小型企业的需要的地方对他们的服务有足够的需求。虽然这些中介机构有明显的弱点,他们能够进军本地信息网络等向企业提供信贷的人太年轻或小,以确保大型区域或国家机构的资金。此外,通过提高返回本地家庭储蓄,有助于调动他们为经济发展重要的新资源。

关键词：中小型企业融资坦桑尼亚

Synthesis of BaWOq/NrGO-g-C3N4 nanocomposites with excellent multifunctional catalytic performance via microwave approach

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Frontiers of Materials Science 2018年第3期12卷 247-263页

作者： M. Mohamed jaffer SADIQ U. Sandhya SHENOY D. Krishna BHAT Department of Chemistry National Institute of Technology Karnataka Surathkal Mangalore-575025 India Department of Chemistry College of Engineering and Technology Srinivas University Mukka Mangalore-574146 India

Novel barium tungstate/nitrogen-doped reduced graphene oxide-graphi- tic carbon nitride （BaWO4/NrGO-g-C3N4） nanocomposite has been synthesized by a simple one-pot microwave technique. The synthesized nanocomposites are well characterized by diffraction, microscopic and spectroscopic techniques to study its crystal structure, elemental composition, morphological features and optical properties. The material prepared is tested for its performance as an electrocatalyst, photocatalyst and reduction catalyst. The nanocomposite catalyzed the photodegradation of methylene blue （MB） dye in 120 min, reduction of 4-nitro phenol （4-NP） to 4-amino phenol （4-AP） in 60 s, showed an impressive Tafel slope of 62 mV/dec for hydrogen evolution reaction （HEr）. The observed results suggest that the nanocomposite acts as an efficient multifunctional catalyst. The reported approach provides fundamental insights which can be extended to other metal tungstate-based ternary composites for applications in the field of clean energy and environment in the future.

关键词： BaWO4/NrGO-g-C3N4 nanocomposites microwave irradiation hydrogen evolution reaction photocatalyst reduction