检索结果-南通市图书馆

Social Media and Stock Market Prediction: A Big Data Approach

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Computers, Materials & Continua 2021年第5期67卷 2569-2583页

作者： Mazhar Javed Awan Mohd Shafry Mohd Rahim Haitham Nobanee Ashna Munawar Awais Yasin Azlan Mohd zain Azlanmz School of Computing Faculty of EngineeringUniversity Teknologi MalaysiaJohorMalaysia Department of Software Engineering University of Management and TechnologyLahorePakistan Collage of Business Abu Dhabi UniversityAbu DhabiUnited Arab Emirates Oxford Center for Islamic Studies The University of OxfordOxfordUK The University of Liverpool Management School The University of LiverpoolLiverpoolUK Department of Computer Engineering National University of TechnologyIslamabadPakistan School of Computing UTM Big Data CentreUniversiti Teknologi MalaysiaJohorMalaysia

Big data is the collection of large datasets from traditional and digital sources to identify trends and *** quantity and variety of computer data are growing exponentially for many *** example,retailers are building vast databases of customer sales *** are working on logistics financial services,and public social media are sharing a vast quantity of sentiments related to sales price and *** of big data include volume and variety in both structured and unstructured *** this paper,we implemented several machine learning models through Spark MLlib using PySpark,which is scalable,fast,easily integrated with other tools,and has better performance than the traditional *** studied the stocks of 10 top companies,whose data include historical stock prices,with MLlib models such as linear regression,generalized linear regression,random forest,and decision *** implemented naive Bayes and logistic regression classification *** results suggest that linear regression,random forest,and generalized linear regression provide an accuracy of 80%-98%.The experimental results of the decision tree did not well predict share price movements in the stock market.

关键词： Big data analytics artificial intelligence machine learning stock market social media business analytics

Graphene oxide-coated microbottle resonators for relative humidity sensing

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Optoelectronics Letters 2024年第7期20卷 400-405页

作者： Huda Adnan zain Malathy Batumalay Md Ashadi Md Johari Hazli Rafis Abdul Rahim Sulaiman Wadi Harun Department of Electrical Engineering Faculty of EngineeringUniversity of MalayaKuala Lumpur 50603Malaysia Faculty of Data Science and Information Technology INTI International UniversityNilai 71800Malaysia1 Faculty of Electrical and Electronic Engineering Technology Universiti Teknikal Malaysia MelakaMelaka 76100Malaysia Faculty of Electronic and Computer Engineering Universiti Teknikal Malaysia MelakaMelaka 76100Malaysia

Graphene oxide(GO)is a 2D coating material used to improve fiber optics sensors’response to relative *** resonators(MBRs)have garnered more attention as sensing media *** MBR with a 190μm diameter was coated with ***,tapered fiber light coupling was used to investigate the relative humidity sensing performance in the range of 35—70%RH at 25℃.The MBR showed a higher Q factor before and after GO *** sensitivity of 0.115 dB/%RH was recorded with the 190μm GO-coated MBR sample compared to a sensitivity of 0.022 dB/%RH for the uncoated MBR *** results show that the MBR can be used in fiber optic sensing applications for environmental sensing.

关键词： humidity oxide bottle

Rectal varices vs hemorrhoids-diagnosis and management

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

World Journal of Hepatology 2024年第11期16卷 1216-1218页

作者： zain Majid Taha Yaseen Abbas Ali Tasneem Nasir Hassan Luck Department of Hepatogastroenterology Sindh Institute of Urology and TransplantationKarachi 74200Pakistan 不详

Rectal varices are an uncommon manifestation of portal *** hemorrhoids can be seen in cirrhotic patients,distinguishing between rectal varices and hemorrhoids can be ***,the underlying mechanism and treatment options ***,the correct identification is of utmost *** this letter,we highlight the features of both and listed the distinguishing points between the two etiologies.

关键词： Rectal varices Hemorrhoids Portal hypertension Cirrhosis Bleeding Pain

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

科威特zain语音通信演进之路

通信世界 2023年第19期 34-35页

作者：科威特zain 科威特zain

作为中东北非地区领先的电信运营商之一,科威特zain一直走在创新的前沿,是全球首批商用VoNR(Voice over New Radio)业务的运营商之一。2023年,科威特zain提出5G新通话PoC(Proof of Concept)计划,目标是成为中东地区第一个实现新通话业... 详细信息

作为中东北非地区领先的电信运营商之一,科威特zain一直走在创新的前沿,是全球首批商用VoNR(Voice over New Radio)业务的运营商之一。2023年,科威特zain提出5G新通话PoC(Proof of Concept)计划,目标是成为中东地区第一个实现新通话业务商用的运营商。

关键词：电信运营商语音通信中东地区中东北非科威特

Identifications of drug resistance mutations among antiretroviral treatment naive HIV-1 patients in Peninsular Malaysia

维普期刊数据库博看期刊

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Asian Pacific Journal of Tropical Medicine 2017年第1期10卷 73-76页

作者： Rozainanee Mohd zain Nabila Ibrahim Suriani Ismail Jeyanthi Suppiah Nor Aziyah Mat Rahim Ravindran Thayan Virology Unit Institute for Medical ResearchInfectious Disease Research CentreJalan Pahang50588Kuala LumpurMalaysia

Objective: To determine drug resistance mutations and the HIV-1 subtypes among antiretroviral treatment naive HIV-1 patients in Peninsular Malaysia,Methods: A total of 45 samples from four hospitals that provide HIV viral load services were subjected to the amplification of the protease and two third of reverse transcriptase regions of the pol gene by RT-PCR and Sanger sequencing,Drug resistance mutation(DRM) interpretation reports the presence of mutations related to protease inhibitors(PIs),Nucleoside reverse-transcriptase inhibitors(NRTI) and Non-nucleoside reverse-transcriptase inhibitors(NNRTI) based on analysis using Stanford HIV database program,Results: DRMs were identified in 35% of patients,among which 46.7% of them showed minor resistance to protease inhibitor with A71 V and L10 l were the commonest DRMs detected,About 21.4% and 50.0% of patients had mutations to NRTIs and NNRTIs,respectively,CRF01_AE was found to be the predominant HIV-1 subtype,Conclusions: These findings have served as an initial crucial data in determining the prevalence of transmitted HIV-1 drug resistance for the country,However,more samples from various parts of the country need to be accumulated and analyzed to provide overall HIV-1 drug resistance in the country.

关键词： HIV Resistance Malaysia Antiretroviral treatment naive

Oncogenic fingerprint of epidermal growth factor receptor pathway and emerging epidermal growth factor receptor blockade resistance in colorectal cancer

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 Oncology 2016年第5期7卷 340-351页

作者： zain A Sobani Ashwin Sawant Mikram Jafri Amit Keith Correa Ibrahim Halil Sahin Department of Medicine Maimonides Medical Center Department of Medicine Icahn School of Medicine at Mount Sinai St Luke’s Roosevelt Hospital Center Department of Medicine Albany Stratton Veterans Hospital

Epidermal growth factor receptor(EGFR) has been an attractive target for treatment of epithelial cancers, including colorectal cancer(CRC). Evidence from clinical trials indicates that cetuximab and panitumumab(antiEGFR monoclonal antibodies) have clinical activity in patients with metastatic CRC. The discovery of intrinsic EGFR blockade resistance in Kirsten RAS(KRAS)-mutant patients led to the restriction of anti-EGFR antibodies to KRAS wild-type patients by Food and Drug Administration and European Medicine Agency. Studies have since focused on the evaluation of biomarkers to identify appropriate patient populations that may benefit from EGFR blockade. Accumulating evidence suggests that patients with mutations in EGFR downstream signaling pathways including KRAS, BRAF, PIK3CA and PTEN could be intrinsically resistant to EGFR blockade. Recent whole genome studies also suggest that dynamic alterations in signaling pathways downstream of EGFR leads to distinct oncogenic signatures and subclones which might have some impact on emerging resistance in KRAS wild-type patients. While anti-EGFR monoclonal antibodies have a clear potential in the management of a subset of patients with metastatic CRC, further studies are warranted to uncover exact mechanisms related to acquired resistance to EGFR blockade.

关键词： Epidermal growth factor receptor Oncogenic signature Kirsten RAS BRAF Cetuximab Panitumumab Epidermal growth factor receptor blockade resistance

iPSC-derived cranial neural crest-like cells can replicate dental pulp tissue with the aid of angiogenic hydrogel

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Bioactive Materials 2022年第8期7卷 290-301页

作者： Yoshifumi Kobayashi Julie Nouet Erdenechimeg Baljinnyam zain Siddiqui Daniel HFine Diego Fraidenraich Vivek A.Kumar Emi Shimizu Department of Oral Biology Rutgers School of Dental MedicineNewarkNJ07103USA Department of Cell Biology and Molecular Medicine Rutgers New Jersey Medical SchoolNewarkNJ07103USA Department of Biomedical Engineering New Jersey Institute of TechnologyNewarkNJ07102USA

The dental pulp has irreplaceable roles in maintaining healthy teeth and its regeneration is a primary aim of regenerative *** study aimed to replicate the characteristics of dental pulp tissue by using cranial neural crest(CNC)-like cells(CNCLCs);these cells were generated by modifying several steps of a previously established method for deriving NC-like cells from induced pluripotent stem cells(iPSCs).CNC is the anterior region of the neural crest in vertebrate embryos,which contains the primordium of dental pulp cells or *** produced CNCLCs showed approximately 2.5-12,000-fold upregulations of major CNC marker ***,the CNCLCs exhibited remarkable odontoblastic differentiation ability,especially when treated with a combination of the fibroblast growth factors(FGFs)FGF4 and *** FGFs induced odontoblast marker genes by 1.7-5.0-fold,as compared to bone morphogenetic protein 4(BMP4)*** a mouse subcutaneous implant model,the CNCLCs briefly fated with FGF4+FGF9 replicated dental pulp tissue characteristics,such as harboring odontoblast-like cells,a dentin-like layer,and vast neovascularization,induced by the angiogenic self-assembling peptide hydrogel(SAPH),*** acts as a versatile biocompatible scaffold in the canal *** study demonstrated a successful collaboration between regenerative medicine and SAPH technology.

关键词： Regenerative endodontics iPSC Cranial neural crest Fibroblast growth factor Odontoblastic differentiation Angiogenic self-assembling peptide hydrogel

A Survey of Software Packages Used for Rough Set Analysis

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of Computer and Communications 2016年第9期4卷 10-18页

作者： zain Abbas Aqil Burney Department of Computer Science University of Karachi Karachi Pakistan College of Computer Science and Information Systems Institute of Business Management Karachi Pakistan

Soft computing is a combination of methods that complement each other when dealing with ambiguous real life decision systems. Rough Set Theory (RST) is a technique used in soft computing that enhances the idea of classical sets to deal with incomplete knowledge and provides a mechanism for concept approximation. It uses reducts to isolate key attributes affecting outcomes in decision systems. The paper summarizes two algorithms for reduct calculation. Moreover, to automate the application of RST, different software packages are available. The paper provides a survey of packages that are most frequently used to perform data analysis based on Rough Sets. For benefit of researchers, a comparison of based on functionalities of those software is also provided.

关键词： Rough Set Theory Soft Computing Reducts Rosetta Rough Sets Decision Table RSES Rose2 WEKA

Synthesis of zeolite-magadiite composites＂ Effects of co-solvent and aluminum source

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Particuology 2016年第4期14卷 34-39页

作者： Idris A. Bakare Oki Muraza Saheed A. Ganiyu Abbas S. Hakeem zain H. Yamani Adnan M.J. Al-Amer Center of Excellence in Nanotechnology King Fahd University of Petroleum and Minerals PO Box 5040 Dhahran 31261 Saudi Arabia Chemical Engineering Department King Fahd University of Petroleum and Minerals PO Box 5040 Dhahran 21261 Saudi Arabia Chemistry Department King Fahd University of Petroleum and Minerals PO Box 5040 Dhahran 31261 Saudi Arabia

The one-pot synthesis of ZSM-5-magadiite, ZSM-23-magadiite, and ZSM-5-ZSM-23-magadiite using isopropylamine and 2-propanol as an organic structure-directing agent and co-solvent, respectively, was studied. Zeolite mixtures were prepared by adding 2-propanol （0 to 10wt%） to the reaction solu- tion. The intergrowth of composites was observed when 2-propanol was introduced as a co-solvent into the reaction mixture. Synthesized samples were characterized by X-ray diffraction, field-emission scan- ning electron microscopy, energy-dispersive X-ray spectroscopy, and thermogravimetric analysis. The results revealed that the amount of 2-propanol and source of aluminum influenced the nature of the zeolite-magadiite composites formed.

关键词： lntergrowth Magadiite ZSM-23 ZSM-5 Composite