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Electrodeposited Ni and Ni-Co alloys using cysteine and conventional ultrasound waves

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Science China Chemistry 2013年第10期56卷 1446-1454页

作者： EL-FEKY Hesham NEGEM Mosaad ROY Sudipta HELAL nadia BARAKA A. Chemistry Department Faculty of Science Fayoum UniversityFayoum 63514 Egypt School of Chemical Engineering and Advanced Materials Newcastle University Newcastle upon TyneNE1 7RU United Kingdom Chemistry Department Faculty of Science Cairo UniversityGiza 12613 Egypt

Ni-Co alloys were electroplated from sulphate electrolyte using addition agents including sodium gluconate, boric acid and eysteine on copper foil by the galvanostatic technique and ultrasound waves. The chemical composition, surface morphologies, crystalline structure and hardness of the Ni-Co alloys were studied using energy dispersive spectroscopy, scanning electron microscope, X-ray diffraction and Vickers testing method, respectively. The effect of current density and addition agents on the microstructure and morphology of Ni-Co alloys were examined. The appropriate concentration of additives and ultrasound waves were found to produce fine and smooth crystals leading to higher hardness of Ni-Co alloys. The microhardness of the Ni-Co alloys was varied between 4860-7530 HV. The surface morphology of coatings was changed from granular to fine due to using of gluconate, boric acid, cysteine and ultrasound waves. The mechanical properties of nanocrystalline Ni-Co alloys showed an increase of the hardness with the growing of Ni content in the alloy. The X-ray diffraction studies indicated that nanocrystalline structure was face-centred cubic for pure Ni and Ni-Co alloys with Co content in the range of 1-75 wt.%. A hexagonal closed-package structure was obtained for pure Co and Ni-Co alloys with the cobalt content with range of 75-99 wt.%.

关键词： electrodeposition nanocrystalline Ni alloys ultrasound microhardness

A semantic web services discovery approach based on a mobile agent using metadata

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International Journal of Intelligent Computing and Cybernetics 2017年第1期10卷 12-29页

作者： nadia Ben Seghir Okba Kazar Khaled Rezeg Samir Bourekkache LINFI Laboratory Computer Science DepartmentUniversity of BiskraBiskraAlgeria

Purpose-The success of web services involved the adoption of this technology by different service providers through the web,which increased the number of web services,as a result making their discovery a tedious *** UDDI standard has been proposed for web service publication and ***,it lacks sufficient semantic description in the content of web services,which makes it difficult to find and compose suitable web services during the analysis,search,and matching *** addition,few works on semantic web services discovery take into account the user’s *** purpose of this paper is to optimize the web services discovery by reducing the search space and increasing the number of relevant ***/methodology/approach-The authors propose a new approach for the semantic web services discovery based on the mobile agent,user profile and metadata *** the approach,each user can be described by a profile which is represented in two dimensions:personal dimension and preferences *** description of web service is based on two levels:metadata catalog and ***-First,the semantic web services discovery reduces the number of relevant services through the application of matching algorithm“semantic match”.The result of this first matching restricts the search space at the level of UDDI registry,which allows the users to have good results for the“functional match”.Second,the use of mobile agents as a communication entity reduces the traffic on the network and the quantity of exchanged ***,the integration of user profile in the service discovery process facilitates the expression of the user needs and makes intelligible the selected ***/value-To the best knowledge of the authors,this is the first attempt at implementing the mobile agent technology with the semantic web service technology.

关键词： Metadata Semantic web Mobile agent Ontologie User profile Web service Paper type Technical paper

How the “seed” prepares the “soil”: the bone/bone marrow pre-metastatic niche

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Journal of Cancer Metastasis and Treatment 2021年第1期7卷 478-496页

作者： Antonio Maurizi Marco Ponzetti nadia Rucci Department of Biotechnological and Applied Clinical Sciences University of L’AquilaL’Aquila 67100Italy.

Cancer is one of the leading causes of death in women and men *** fatal outcome usually occurs after metastatic dissemination,and bone is by far the most common site of metastasis for breast and prostate cancer,the highest incidence neoplasia in women and men,***,while this is clear,the mechanisms through which the metastatic preference is established is *** emerging concept in this regard is the pre-metastatic niche(PMN)establishment,i.e.,the process through which tumors can influence the bone microenvironment from the primary site and make it permissive for their engraftment,before they migrate to the blood flow and *** this review,we discuss key microenvironmental players in the bone/bone marrow PMN,including osteoblasts,osteoclasts,and bone marrow *** also describe the known PMN-educating factors,as well as the role of extracellular vesicles as emerging players in the bone/bone marrow *** overview of current therapeutic developments aimed at targeting the bone PMN is also provided.

关键词： Bone metastasis pre-metastatic niche bone microenvironment extracellular vesicles

Application of Modified Silica Coated Magnetite Nanoparticles for Removal of Iodine from Water Samples

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Nano-Micro Letters 2012年第1期4卷 57-63页

作者： Tayyebeh Madrakian Abbas Afkhami Mohammad Ali Zolfigol Mazaher Ahmadi nadia Koukabi Faculty of Chemistry Bu-Ali Sina University

The adsorption of iodine onto silica coated magnetite nanoparticles(im-SCMNPs) that modified with imidazole was investigated for removal of high concentrations of iodine from wastewater. Modified silica magnetite nanoparticles showed high efficiency in removing iodine from wastewater samples. The optimum pH for iodine removal was 7.0-8.0. The adsorption capacity was evaluated using both the Langmuir and Freundlich adsorption isotherm models. The size of the produced magnetite nanoparticles was determined by X-ray diffraction analysis and scanning electron microscopy. Synthesized magnetite nanoparticles showed the high adsorption capacity and would be a good method to increase adsorption efficiency for the removal of iodine in a wastewater treatment process. The Langmuir adsorption capacity(qmax) was found to be 140.84 mg/g of the adsorbent.

关键词： Modified silica magnetite nanoparticles Iodine Imidazole Water samples

Spatiotemporal mapping of the leprosy granuloma landscape

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Cellular & Molecular Immunology 2022年第5期19卷 558-560页

作者： Marco P.La Manna Francesco Dieli nadia Caccamo Central Laboratory of Advanced Diagnosis and Biomedical Research(CLADIBIOR) University of PalermoPalermoItaly Department of Biomedicine Neurosciences and Advanced DiagnosisUniversity of PalermoPalermoItaly

Leprosy is a chronic infectious disease of humans caused by Mycobacterium leprae(***)that is prevalent in some countries of Asia,Africa,and South America[1].Leprosy has traditionally been classified into two major types,tuberculoid and *** with tuberculoid leprosy(TLEP)have limited disease with relatively few bacteria in the skin and nerves and can successfully control the infection.

关键词： granuloma nerves landscape

Primary epithelial tumours of the appendix in a black population:A review of cases

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World Journal of Gastroenterology 2009年第12期15卷 1472-1474页

作者： Rondell Patrell Darrell Graham nadia Patricia Williams Kamille Aisha West Department of Pathology University Hospital of the West Indies MonaKingston 7JamaicaWest Indies

AIM： To determine the and clinical features of prevalence, histologic types primary epithelial tumours of the vermiform appendix in a predominantly black population.METHODS： All cases of primary tumours of the appendix identified by review of the histopathology records at the University of the West Indies between January 1987 and June 2007 were selected. Relevant pathologic and clinical data were extracted with supplementation from patient charts where available. Non-epithelial tumours were excluded. The total number of appendectomy specimens over the period was also ascertained.RESULTS： Forty-two primary epithelial tumours were identified out of 6 824 appendectomies yielding a prevalence rate of approximately 0.62%. Welldifferentiated neuroendocrine cell tumours （carcinoids, 47.6%） and benign non-endocrine cell tumours （adenomas, 45.2%） were most common with nearly equal frequency. The median age was 43 years, with no sex predilection. Carcinoid tumours occurred in younger patients （mean age 32 years）, with a male-to-female ratio of 1.2：1. A clinical diagnosis of acute appendicitis was the most common reason for appendectomy （57.1%） and was histologically confirmed in 75% （18 of 24） of cases. In total, 16.7% of cases were diagnosed after incidental appendectomy.CONCLUSION： Appendiceal epithelial tumours are rare in our experience, and are represented principally by carcinoid turnours and adenornas. Carcinoid tumours occurred in younger patients but were slightly more common in men than women. Tumours were not suspected clinically and were diagnosed incidentally in specimens submitted for acute appendicitis supporting the need for histological evaluation in all resection specimens.

关键词： Epithelial tumours Appendiceal tumours Carcinoid Adenoma Appendicitis

The New Socialist Woman-Ideals of Womanhood in Propaganda Posters 1949-1966

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The New Socialist Woman-Ideals of Womanhood in Propaganda Po...

作者： nadia Weronika Urban 华东师范大学

学位级别：硕士

本文旨在探讨宣传艺术与妇女解放的关系。从宣传海报这一全新的视角来看待中国妇女的权利。中国共产党自赢得内战以来,一直致力于妇女生活的改善。但要做到这一点,他们需要对抗数百年的儒家传统。这种传统造就了中国社会女性的原型。妇... 详细信息

本文旨在探讨宣传艺术与妇女解放的关系。从宣传海报这一全新的视角来看待中国妇女的权利。中国共产党自赢得内战以来,一直致力于妇女生活的改善。但要做到这一点,他们需要对抗数百年的儒家传统。这种传统造就了中国社会女性的原型。妇女在家庭中被要求举止得体,扮演好自己的角色。然而时代发展到今天,共产党希望妇女摆脱家庭束缚,走出家门,走向田间地头,走向工厂。因此,他们利用宣传海报来宣传新的行为模式,并最终为社会创造出一种新的女性原型——社会主义新女性——1949-1966年宣传海报中所表现出来的一系列特征和行为。我通过分析这一时期的各种宣传海报,来回答谁是社会主义新女性、她和传统的模型有什么取别。

关键词：宣传艺术宣传海报女权主义研究

Liquid biopsies in primary and secondary bone cancers

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Cancer Drug Resistance 2022年第3期5卷 541-559页

作者： Argia Ucci nadia Rucci Marco Ponzetti Department of Biotechnological and Applied Clinical Sciences University of L’AquilaL’Aquila 67100Italy

Liquid biopsies are a powerful tool to non-invasively analyze tumor phenotype and progression as well as drug *** the bone oncology field,liquid biopsies would be particularly important to develop,since standard biopsies can be very painful,dangerous(e.g.,when found in proximity to the spinal cord),and hard to *** this review,we explore the recent advances in liquid biopsies in both primary(osteosarcoma and Ewing sarcoma)and secondary bone cancers(breast,prostate,and lung cancer-induced bone metastases),presenting their current role and highlighting their unexpressed potential,as well as the barriers limiting their possible adoption,including costs,scalability,reproducibility,and isolation *** discuss the use of circulating tumor cells,cell-free circulating tumor DNA,and extracellular vesicles for the purpose of improving diagnosis,prognosis,evaluation of therapy resistance,and driving therapy decisions in both primary and secondary bone malignancies.

关键词： Liquid biopsy bone metastasis osteosarcoma Ewing sarcoma extracellular vesicles minimal residual disease drug resistance

Query Optimization Framework for Graph Database in Cloud Dew Environment

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Computers, Materials & Continua 2023年第1期74卷 2317-2330页

作者： Tahir Alyas Ali Alzahrani Yazed Alsaawy Khalid Alissa Qaiser Abbas nadia Tabassum Department of Computer Science Lahore Garrison UniversityLahorePakistan Faculty of Computer Science and Information Systems Islamic University Madinah Madinah42351Saudi Arabia Networks and Communications Department College of Computer Science and Information TechnologyImam Abdulrahman Bin Faisal UniversityP.O.Box 1982Dammam31441Saudi Arabia Department of Computer Science Virtual University of PakistanLahorePakistan

The query optimizer uses cost-based optimization to create an execution plan with the least cost,which also consumes the least amount of *** challenge of query optimization for relational database systems is a combinatorial optimization problem,which renders exhaustive search impossible as query sizes *** in CPU performance have surpassed main memory,and disk access speeds in recent decades,allowing data compression to be used—strategies for improving database performance *** performance enhancement,compression and query optimization are the two most *** reduces the volume of data,whereas query optimization minimizes execution *** the database reduces memory requirement,data takes less time to load into memory,fewer buffer missing occur,and the size of intermediate results is more *** paper performed query optimization on the graph database in a cloud dew environment by considering,which requires less time to execute a *** factors compression and query optimization improve the performance of the *** research compares the performance of MySQL and Neo4j databases in terms of memory usage and execution time running on cloud dew servers.

关键词： Query optimization compression cloud dew decompression graph database