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A Knowledge-based Model for Semantic Oriented Contextual Advertising
( Mohammed Maree ),( Rami Hodrob ),( Mohammed Belkhatir ),( Saadat M. Alhashmi ) 한국인터넷정보학회 2020 KSII Transactions on Internet and Information Syst Vol.14 No.5
Proper and precise embedding of commercial ads within Webpages requires Ad-hoc analysis and understanding of their content. By the successful implementation of this step, both publishers and advertisers gain mutual benefits through increasing their revenues on the one hand, and improving user experience on the other. In this research work, we propose a novel multi-level context-based ads serving approach through which ads will be served at generic publisher websites based on their contextual relevance. In the proposed approach, knowledge encoded in domain-specific and generic semantic repositories is exploited in order to analyze and segment Webpages into sets of contextually-relevant segments. Semantically-enhanced indexes are also constructed to index ads based on their textual descriptions provided by advertisers. A modified cosine similarity matching algorithm is employed to embed each ad from the Ads repository into one or more contextually-relevant segments. In order to validate our proposal, we have implemented a prototype of an ad serving system with two datasets that consist of (11429 ads and 93 documents) and (11000 documents and 15 ads), respectively. To demonstrate the effectiveness of the proposed techniques, we experimentally tested the proposed method and compared the produced results against five baseline metrics that can be used in the context of ad serving systems. In addition, we compared the results produced by our system with other state-of-the-art models. Findings demonstrate that the accuracy of conventional ad matching techniques has improved by exploiting the proposed semantically-enhanced context-based ad serving model.
Mohamed Abdelkhalek,Ahmed Setit,Francesco Bianco,Andrea Belli,Adel Denewer,Tamer Fady Youssef,Armando Falato,Giovanni Maria Romano 대한대장항문학회 2018 Annals of Coloproctolgy Vol.34 No.4
Purpose: Revolutions have occurred over the last 3 decades in the management of patients with colorectal cancer. Most advances were in rectal cancer surgery, especially after the introduction of the total mesorectal excision (TME) by Heald. However, no parallel advances regarding colon cancer surgeries have occurred. In 2009, Hohenberger introduced a new concept trying to translate the survival advantages of TME to patients with colon cancer. This relatively new concept of a complete mesocolic excision (CME) with central vascular ligation (CVL) in the management of patients with colon cancer represents an evolution in operative technique. We performed a comparative study between CME with CVL and conventional surgery for patients with colon cancer at Italian and Egyptian cancer centers, considering surgical quality and clinical outcome. Methods: Seventy-nine Egyptian patients underwent conventional surgery (non-CME group) while 52 Italian patients underwent CME with sharp dissection between the embryological planes and CVL of the supplying vessels (CME group). Results: Significantly better results were observed in terms of lymph node yield (CME group: 22.5 vs. non-CME group: 12; P < 0.0001) and lymph node ratio (CME group: 0.03 vs. non-CME group: 0.22; P < 0.0001). Regarding surgical morbidity, no significant difference was noted (CME group: 2 vs. non-CME group: 5; P < 0.702). Conclusion: CME appears to be a safe procedure when performed by experienced hands through proper embryological planes. It also provides a superior specimen, with a higher lymph node yield, which consequently affects the lymph node ratio. Eventually, CME with CVL should be increasingly adopted and studied more deeply.
Castro, Maria,Losch, Pit,Park, Woojin,Haouas, Mohamed,Taulelle, Francis,Loerbroks, Claudia,Brabants, Gert,Breynaert, Eric,Kirschhock, Christine E. A.,Ryoo, Ryong,Schmidt, Wolfgang American Chemical Society 2018 Chemistry of materials Vol.30 No.8
<P>A case study on the understanding of the formation of hierarchical Beta zeolites using gemini-type piperidine based multiammonium surfactant (N<SUB>6</SUB>-diphe) is reported. Complementary techniques were used to investigate N<SUB>6</SUB>-diphe’s structure-directing effect at the molecular level. Combining characterization of the resulting zeolite materials with the toolboxes herein developed for studying clear solutions and dense gels discloses self-assembly processes that govern the growth (and growth inhibition) of nano-Beta zeolite crystals. In clear solution, small-angle X-ray scattering and liquid-state NMR provide insights about the formation of nanoparticles and their degree of order. <SUP>14</SUP>N and <SUP>1</SUP>H-DOSY NMR probe the dynamics and mobility of soluble species. In a dense gel, on the other side, <SUP>27</SUP>Al- and <SUP>29</SUP>Si-(MAS) NMR elucidate the varying local connectivity between initial nano-objects and the final solid products. It has been found that cylindrical micelles control the transformation of solubilized silica and alumina during the formation of zeolite nuclei and guide their crystal growth to nano-Beta rods with bimodal mesoporosity. The predominant smaller mesopores (6 to 8 nm) originate from the template’s hydrophobic alkyl chains, while larger mesopores (10 to 30 nm) are supposed to result from a spinodal decomposition-type segregation of phases consisting of as-formed hydrophobic zeolite rods and an aqueous solution.</P> [FIG OMISSION]</BR>
Sandip Bhattacharya,Mohammed Imran Hussain,John Ajayan,Shubham Tayal,Louis Maria Irudaya Leo Joseph,Sreedhar Kollem,Usha Desai,Syed Musthak Ahmed,Ravichander Janapati 한국전자통신연구원 2023 ETRI Journal Vol.45 No.5
In this study, we designed a 6T-SRAM cell using 16-nm CMOS process and analyzed the performance in terms of read-speed latency. The temperaturedependent Cu and multilayered graphene nanoribbon (MLGNR)-based nanointerconnect materials is used throughout the circuit (primarily bit/bit-bars [red lines] and word lines [write lines]). Here, the read speed analysis is performed with four different chip operating temperatures (150K, 250K, 350K, and 450K) using both Cu and graphene nanoribbon (GNR) nano-interconnects with different interconnect lengths (from 10 μm to 100 μm), for reading-0 and reading-1 operations. To execute the reading operation, the CMOS technology, that is, the16-nm PTM-HPC model, and the16-nm interconnect technology, that is, ITRS-13, are used in this application. The complete design is simulated using TSPICE simulation tools (by Mentor Graphics). The read speed latency increases rapidly as interconnect length increases for both Cu and GNR interconnects. However, the Cu interconnect has three to six times more latency than the GNR. In addition, we observe that the reading speed latency for the GNR interconnect is ~10.29 ns for wide temperature variations (150K to 450K), whereas the reading speed latency for the Cu interconnect varies between ~32 ns and 65 ns for the same temperature ranges. The above analysis is useful for the design of next generation, high-speed memories using different nano-interconnect materials.
Ali Raufi,Mohamed Alsharedi,Yousef Khelfa,Maria Tirona 한국유방암학회 2017 Journal of breast cancer Vol.20 No.1
Breast cancer is the second leading cause of death among women in North America. Glioblastoma is the most common primary malignant central nervous system tumor in adults. The majority of hereditary breast cancers are associated with deleterious mutations in the BRCA1 and BRCA2 genes. Although few case reports have described the incidence of glioblastoma in patients previously diagnosed with breast cancer, any association between BRCA2 mutations and glioblastoma has not been demonstrated to date. Herein, we report a woman who is a carrier of a familial BRCA2 mutation, and was previously diagnosed with triple-negative breast cancer (TNBC) and subsequently with a second primary TNBC and glioblastoma. Further investigation is required to define the possible relationship between these two aggressive malignances and the BRCA2 mutation, which might be critical for the proper management and treatment of this disease.
Genetic diversity of nine faba bean (Vicia faba L.) populations revealed by isozyme markers
Ali Ouji,Maria José Suso,Mustapha Rouaissi,Raoudha Abdellaoui,Mohamed El Gazzah 한국유전학회 2011 Genes & Genomics Vol.33 No.1
Seven isozyme systems (Sod, 6-Pgd, Me, Est, Skdh, Fdh and Gdh) representing nine loci were used to study the genetic diversity of nine faba bean populations. Seven loci revealed polymorphic bands and showed the same quaternary structure as that found in several species. They revealed a high number of phenotypes. Indeed, from 3 to 9 phenotypes per locus were investigated in this study. The percentage of polymorphic loci (P = 59.3 %) was higher than that mentioned in the autogamous species (P = 20.3 %) and less than the optimum (P=96%) indicated for allogamous plants. Total genetic diversity (HT) and within population genetic diversity (Hs) were estimated with the isozyme markers. The contribution of among population genetic diversity (D_ST) to total genetic diversity was 22%. Enzyme markers pointed out an average inbreeding level for whole population (F_IT) and within population (F_IS). Within population genetic diversity represents 78% of total diversity. Intra-population genetic diversity (Hs = 0.206) was ranged with the respect of allogamous species and was clearly higher than that of among population genetic diversity (D_ST = 0.057)indicating an out-crossing predominance in the studied populations. The expected heterozygosity was higher than that observed heterozygosity at the allogamous species was confirmed in this study. Although, the mean estimated gene flow was less than 1(Nm=0.814), the dendrogram based on Nei's genetic distance of the 9 populations using UPGMA method showed some genetic drift between populations.
Ioannis D Papanastassiou,Mohamed Eleraky,Ryan Murtagh,Zinon T Kokkalis,Maria Gerochristou,Frank D Vrionis 대한척추외과학회 2014 Asian Spine Journal Vol.8 No.3
Study Design: Retrospective comparative study and technical note. Purpose: To determine if there is a difference in clinical and radiographic parameters between unilateral and bilateral kyphoplasty in a uniform cancer population and to stress the importance of preoperative planning. Overview of Literature: While unipedicular kyphoplasty is gaining popularity, a few comparative studies have reported on superior kyphotic reduction with the bipedicular approach. Methods: We reviewed 69 myeloma patients with 105 operated levels (51 levels were done bilaterally vs. 54 unilaterally). Pain reduction, height restoration, cement volume and complications were recorded up to three months postoperatively. A technical note to identify the skin entry point on the basis of the magnetic resonance imaging and fluoroscopy (lateral view) is being described. Results: Both procedures resulted in significant pain reduction (5.4–5.6/10 points, p =0.8). There was significant height restoration after the operation (p <0.001), while there was no sustained difference between the procedures (p =0.5) up to three months postoperatively. More cement was injected in the bilateral group (4.1 mL vs. 4.9 mL, p =0.002); no difference in cement extravasation in the spinal canal was observed (p =0.5). Conclusions: There was no difference in the clinical or radiological outcomes between the unilateral and bilateral approaches. Therefore, unilateral kyphoplasty may be performed whenever it is technically feasible and this may be determined preoperatively.
Multiple Myeloma: a Retrospective Analysis of 61 Patients from a Tertiary Care Center
Sultan, Sadia,Irfan, Syed Mohammed,Parveen, Saira,Ali, Hamza,Basharat, Maria Asian Pacific Journal of Cancer Prevention 2016 Asian Pacific journal of cancer prevention Vol.17 No.4
Background: Multiple myeloma (MM) is an acquired clonal B-cell malignancy which primarily affects elderly individuals with an annual incidence of approximately 1% of all malignancies. Our aim is to study demographic and clinicopathological features of adult Pakistani MM patients at presentation. Materials and Methods: This single centre retrospective study extended from January 2010 to December 2014. Data were retrieved from the patients' maintained records on predetermined performa. Results: Overall, 61 patients were diagnosed at our institution with MM during the study period. There were 43 males and 18 females. Age ranged between 34 and 81 years with a mean of $56.1{\pm}12.8$ and a median of 57 years. The male to female ratio was ~2:1. Common presenting complaints included fatigue (81.9%), backache (80.3%) and bone pain (67.2%). Physical findings revealed pallor (44.2%) as a presenting clinical feature. The mean hemoglobin value was $8.9{\pm}1.7g/dl$ with a mean MCV of $85.3{\pm}11.0fl$. Severe anemia with hemoglobin <8.5 gm/dl was seen in 40.9%. The mean total leukocyte count was $8.9{\pm}8.2{\times}10^9/l$, the ANC was $5.0{\pm}3.1{\times}10^9/l$ and the mean platelet count was $188.4{\pm}150.6{\times}10^9/l$. Conclusions: MM in Pakistani patients is seen in a relatively young population with male preponderance. The majority of patients present with symptomatic anemia and backache to seek medical attention. However, clinico-pathological features appear comparable to the published literature.