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Total Cross Sections at High Energies—An Update

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Communications in Theoretical Physics 2002年第6X期38卷 687-690页

作者： Fazal-e-aleem SohailAfzalTahir 等 CentreforHighEnergyPhysics UniversityofthePunjabLahore-54590Pakistan

Current and future measurements for the total cross sections at E-811, PP2PP, CSM, FELIX, and TOTEMhave been analyzed using various models. In the light of this study an attempt has been made to focus on the behavioro... 详细信息

关键词：强相互作用机制高能总截面测量

Security Attacks in Named Data Networking: A Review and Research Directions

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Journal of Computer Science & Technology 2019年第6期34卷 1319-1350页

作者： Naveen Kumar Ashutosh Kumar Singh Abdul aleem Shashank Srivastava Department of Computer Science and Engineering Motilal Nehru National Institute of Technology Allahabad Prayagraj 211004India

Contents such as audios,videos,and images,contribute most of the Internet traffic in the current *** content sharing is a tedious *** existing security solutions do not secure data but secure the communicating *** data networking(NDN)secures the data by enforcing the data publisher to sign the *** user can verify the data by using the public key of the *** is resilient to most of the probable security attacks in the TCP/IP model due to its new ***,new types of attacks are possible in *** article surveys the most significant security attacks in NDN such as interest flooding attacks,cache privacy attacks,cache pollution attacks,and content poisoning *** attack is classified according to their behavior and discussed for their detection techniques,countermeasures,and the affected *** article is an attempt to help new researchers in this area to gather the domain knowledge of *** article also provides open research issues that could be addressed by researchers.

关键词： named data networking(NDN) interest flooding attack cache privacy attack cache pollution attack content poisoning attack

A Case Study in Shandong University on the Rise of Online Retail and Its Impact on Consumer Buying Behaviour

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A Case Study in Shandong University on the Rise of Online Re...

作者： Abdul aleem 山东大学

学位级别：硕士

此次研究讨论了消费者在不同的环境下会选择线上媒介还是线下媒介,以及消费者对时间,价格,质量便利性和隐私之间的态度的关系。网上购物指的是最近兴起的一股潮流,消费者可以坐在家里买到自己需要的东西。消费者的购买路径变得越来越分... 详细信息

此次研究讨论了消费者在不同的环境下会选择线上媒介还是线下媒介,以及消费者对时间,价格,质量便利性和隐私之间的态度的关系。网上购物指的是最近兴起的一股潮流,消费者可以坐在家里买到自己需要的东西。消费者的购买路径变得越来越分散,消费者现在通过各种线上线下渠道购物,完成一笔交易。需要考虑到几个方面,去了解消费者在购买过程中如何选择线上和线下渠道来满足自己的需求。此次研究的主要目的是了解年轻消费者的线上线下渠道购买行为。

关键词： shopping 线下 store purchase commerce 购买过程 consumer 购买行为 customer IMPACT

A Complete Foliation of Schwarzschild Spacetime by Free Falling Hypersurfaces

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Chinese Physics Letters 2006年第12期23卷 3161-3164页

作者： M. Ayub Faridi Amjad Pervez Haris Rashid Fazal-e-aleem Centre for High Energy Physics (CHEP) University of the Punjab Lahore 54590 Pakistan Institute of Chemical Engineering and Technology University of the Punjab Lahore 54590 Pakistan

Free falling hypersurfaces in the Schwarzschild geometry have been studied to provide a complete foliation of spacetime. The hypersurfaces do not cross into the maximally extended spacetime and are well behaved everyw... 详细信息

关键词： CONSTANT-MEAN-CURVATURE RELATIVITY SURFACES TIME

Subversion of cellular autophagy during virus infection:Insights from hepatitis B and hepatitis C viruses

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Liver Research 2018年第3期2卷 146-156页

作者： Mohsin Khan Hasan Imam aleem Siddiqui Division of Infectious Diseases School of MedicineUniversity of CaliforniaSan DiegoLa JollaCAUSA

Autophagy is a self-eating process,in which the damaged or excessed cell organelles and misfolded protein aggregates are removed from the cellular *** is generally thought of as a pro-survival mechanism which is not only important for balancing energy supply at times of nutrient deprivation but also in the removal of various stress stimuli to ensure *** addition to the target materials of“self”origin,autophagy can also eliminate intracellular pathogens and acts as a defense mechanism to curb *** addition,autophagy is linked to the host cell's innate immune ***,viruses have evolved various strategies to manipulate and overtake host cell machinery to establish productive replication and maintain infectious *** fact,replication of many viruses has been found to be autophagy-dependent and suppression of autophagy can potentially affect the viral ***,autophagy can either serve as an anti-viral defense mechanism or a pro-viral process that supports viral *** B virus(HBV)and hepatitis C virus(HCV)are known to co-opt cellular autophagy process as a pro-viral *** viruses also induce mitophagy,which contributes to the establishment of chronic *** review focuses on the roles of autophagy and mitophagy in the chronic liver disease pathogenesis associated with HBV and HCV infections.

关键词： Autophagy Hepatitis B virus(HBV) Hepatitis C virus(HCV) Endoplasmic reticulum(ER)stress Mitophagy

Massive ascites as a presenting manifestation of chronic lymphocytic leukemia

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World Journal of Gastroenterology 2008年第22期14卷 3594-3597页

作者： Neelam Siddiqui Saeed Al-Amoudi Aamer aleem Maha Arafah Layla Al-Gwaiz Department of Medicine College of Medicine King Khalid University Hospital King Saud University Riyadh Saudi Arabia Department of Pathology College of Medicine King Khalid University Hospital King Saud University Riyadh Saudi Arabia

Ascites is not an uncommon manifestation of certain solid tumors like gastrointestinal malignancies, ovarian cancer and breast cancer. However, it is unusual to encounter ascites in patients with hematological malignancies especially chronic leukemia. The patient described here presented with massive ascites and blood lymphocytosis. Further studies confirmed the diagnosis of chronic lymphocytic leukemia with ascites. The ascitic fluid was exudative, consisting of mature-looking B-lymphocytes, which were morphologically and immunophenotypically similar to peripheral blood and bone marrow cells. The patient was treated with chemotherapy and achieved a good response and diminution of ascitic fluid accumulation.

关键词： Ascites Chronic lymphocytic leukemia

Helicobacter pylori and other Helicobacter species DNA in human bile samples from patients with various hepato-biliary diseases

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World Journal of Gastroenterology 2006年第14期12卷 2181-2186页

作者： Santosh K Tiwari aleem A Khan Mohd Ibrahim Mohd Aejaz Habeeb C M Habibullah Center for Liver Research and Diagnostics Deccan College of Medical Sciences KanchanbaghHyderabad 500 058Andhra PradeshIndia Center for Liver Research and Diagnostics Deccan College of Medical Sciences KanchanbaghHyderabad 500 058Andhra PradeshIndia Department of GastroenterologyDeccan College of Medical Sciences Hyderabad 500 058Andhra PradeshIndia

aiM： To investigate the presence of Helicobacter species by nested PCR of 16S rRNA genes followed by the presence of Flelicobacter pylori （H pylori） 16S rRNA, ureA, cagA genes in bile obtained at endoscopic retrograde cholangio-pancreatography （ERCP） from 60 Indian subjects. METHODS： Sixty bile samples were obtained from patients diagnosed with various hepato-biliary diseases and control subjects at ERCP. PCR analysis was carried out using primers for Helicobacter genus 16S rRNA gene and H pylori （16S rRNA, urea and cagA） genes. Gastric H pylori status was also assessed from biopsies obtained at endoscopy from patients with various hepatobiliary diseases and controls. The control group mainly consisted of subjects with gastric disorders. Sequencing analysis was performed to confirm that PCR products with 16S rRNA and cagA primers were derived from H pylori. RESULTS No Helicobacters were grown in culture from the bile samples. Helicobacter DNA was detected in bile of 96.7% and 6.6% of groups Ⅰ and Ⅱ respectively. Ten from group Ⅰ were positive for 16S rRNA and ureA and 9 were positive for cagA gene. In contrast of the 2 from the control, 1 amplified with 16S rRNA, ureA and cagA primers used. The sequences of the 16S rRNA genes and cagA were 99% similar to Helicobacter pylori. CONCLUSION： Helicobacters are associated with the pathogenesis of various hepato-biliary disorders.

关键词： Helicobacter pylori Bile Hepato-biliary diseases PCR, Sequence analysis

Characterization of hepatic progenitors from human fetal liver using CD34 as a hepatic progenitor marker

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World Journal of Gastroenterology 2007年第16期13卷 2319-2323页

作者： Parveen Nyamath Ayesha Alvi Aejaz Habeeb Sanjeev Khosla aleem A Khan CM Habibullah Center for Liver Research and Diagnostics Deccan College of Medical Sciences and Allied Hospitals Kanchanbagh Hyderabad-58 Andhra Pradesh India Centre for DNA Fingerprinting and Diagnostics Nacharam Hyderabad 500072 India

aiM: To enrich putative hepatic progenitors from the developing human fetal liver using CD34 as a marker. METHODS: Aborted fetuses of 13-20 wk were used for the isolation of liver cells. The cells were labeled with anti CD34; a marker used for isolating progenitor population and the cells were sorted using magnetic cell sorting. The positive fractions of cells were assessed for specific hepatic markers. Further, these cells were cultured in vitro for long term investigation. RESULTS: Flow cytometric and immunocytochemical analysis for alphafetoprotein (AFP) showed that the majority of the enriched CD34 positive cells were positive for AFP. Furthermore, these enriched cells proliferated in the long term and maintained hepatic characteristics in in vitro culture. CONCLUSION: The study shows that aborted human fetal liver is a potential source for isolation of hepatic progenitors for clinical applications. The study also demonstrates that CD34 can be a good marker for the enrichment of progenitor populations.

关键词： Progenitor cells Fetal liver Magnetic cell sorting Flow cytometry Immunohistochemistry

Enhancing fault-clearing algorithm for renewable-energy-based distribution systems using artificial neural networks

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Clean Energy 2024年第5期8卷 97-116页

作者： Rania G.Mohamed M.A.Ebrahim Shady H.E.Abdel aleem Electrical Engineering Department Institute of Aviation Engineering and TechnologyGiza12658Egypt Electrical Engineering Department Faculty of Engineering at ShoubraBenha UniversityCairo11629Egypt

Integrating small and large-scale photovoltaic(PV)solar systems into electrical distribution systems has become mandatory due to increased electricity bills and the concern for limiting greenhouse ***,the reliable and efficient operation of PV-based distribution systems can be confronted by the intermittence and high variability of solar sources and their consequential *** this regard,this article suggests a moderated fault-clearing strategy based on the incremental conductance–maximum power point tracking(IC–MPPT)technique and artificial neural networks(ANNs)to enhance fault detection,localization,and restoration pro-cesses in PV-based distribution *** proposed strategy leverages IC–MPPT to ensure optimal power generation from the PV solar system,even in the presence of *** tracking the maximum power point,the algorithm maintains the performance of the system and mitigates against the impact of faults on the output ***,an ANN is employed to improve fault detec-tion and localization *** developed ANN-based moderated fault-clearing strategy is trained using historical data and fault scenarios,enabling it to recognize fault patterns and make informed decisions through extensive simulations and comparisons with traditional fault-clearing *** accomplish this study,benchmarks in PV-based distribution systems are constructed and em-ployed using the MATLAB®/Simulink®software ***,to validate the efficacy of the developed ANN-based moderated fault-clearing strategy,a real case study of a 1-MW PV-based distribution system in an industrial field located in Giza governorate,Egypt,is tested and *** obtained results demonstrate the effectiveness of the IC–MPPT and ANN-based moderated fault-clearing strategy in achieving faster fault detection,precise fault localization,and efficient restoration in PV solar-based dis-tribution systems while preserving maximum power extraction under small and larg

关键词： photovoltaic solar systems fault-clearing algorithm incremental conductance renewable energy artificial neural network maximum power point tracking