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| 1 | 全球化与国家间的收入差距:来自81个国家面板数据的实证分析显示文摘本文运用面板数据通过基于回归的不均等分解框架,研究了全球化对国家间收入差距的影响。这一框架不但可以帮助识别决定不均等的因素,还能量化这些因素对总的不均等的贡献。实证结果表明,用贸易和外商直接投资代表的全球化带来了不均等的上升,而贸易对不均等的贡献要大于外商直接投资。另外,全球化指标的绝对和相对贡献一直在持续增加。有趣的是,当我们根据收入水平对样本进行分组研究时发现,在过去二十多年中,高收入组国家间的不均等基本保持稳定,而低收入组国家间的收入差距则扩大了。在贸易方式上的巨大差别可以解释低收入国家间的收入发散。 | 万广华 张藕香 Mahvash Saeed Qureshi | 2008 | 世界经济文汇2008,,2: | 5 |
| 2 | Application of K-means and PCA approaches to estimation of gold grade in Khooni district(central Iran)显示文摘Grade estimation is an important phase of mining projects, and one that is considered a challenge due in part to the structural complexities in mineral ore deposits.To overcome this challenge, various techniques have been used in the past. This paper introduces an approach for estimating Au ore grades within a mining deposit using k-means and principal component analysis(PCA). The Khooni district was selected as the case study. This region is interesting geologically, in part because it is considered an important gold source. The study area is situated approximately 60km northeast of the Anarak city and 270km from Esfahan. Through PCA, we sought to understand the relationship between the elements of gold,arsenic, and antimony. Then, by clustering, the behavior of these elements was investigated. One of the most famous and efficient clustering methods is k-means, based on minimizing the total Euclidean distance from each class center. Using the combined results and characteristics of the cluster centers, the gold grade was determined with a correlation coefficient of 91%. An estimation equation for gold grade was derived based on four parameters: arsenic and antimony content, and length and width of the sampling points. The results demonstrate that this approach is faster and more accurate than existing methodologies for ore grade estimation. | Neda Mahvash Mohammadi Ardeshir Hezarkhani Abbas Maghsoudi | 2018 | Acta Geochimica2018,37,1: | 3 |
| 3 | Functionalized CVD monolayer graphene for label-free impedimetric biosensing显示文摘在大区域 graphene 生长的最近的进展在不同区域导致了许多应用。在现在的学习,化学蒸汽扔了(CVD ) 在玻璃底层上支持的单层 graphene 为电气化学的 biosensing 应用作为电极材料被检验。我们由在酸的水的答案在 situ 准备的 carboxyphenyl 重氮基盐的电气化学的减小为 CVD 单层 graphene 的共有原子价 functionalization 报导灵巧的策略。修改 carboxyphenyl 的 graphene 用拉曼光谱学, X 光检查光电子光谱学(XPS ) ,和原子力量被描绘显微镜学(AFM ) ,以及电气化学的阻抗光谱学(EIS ) 。我们也证明 graphene 表面上的 grafted carboxyphenyl 组的数字能被扫描为 electrografting 使用了的周期的 voltammetry (CV ) 的数字控制。我们进一步在 grafted 的激活以后在 graphene 表面上基于 ovalbumin 抗体的固定介绍 immunosensor 的制造和描述经由 EDC/NHS 化学的羧基的组。在使表面不能调动的抗体和 ovalbumin 之间的绑定然后用 Faradaic EIS 被监视在[Fe (CN )< 潜水艇 class= “ a-plus-plus ” > 6 ] 3/4 答案。费用转移抵抗的百分比变化(R < 潜水艇 class= “ a-plus-plus ” > 在绑定以后的 ct ) 为从 1.0 pg 的 ovalbumin 集中展出了线性依赖? | Shimaa Eissa Gaston Contreras Jimenez Farzaneh Mahvash Abdeladim Guermoune Chaker Tlili Thomas Szkopek Mohammed Zourob Mohamed Siaj | 2015 | Nano Research2015,8,5: | 3 |
| 4 | neuroendocrine 的罐头成像模式肝的转移预言反应 yttruim-90 radioembolotherapy?显示文摘 AIM:To evaluate the response to treatment in patients with neuroendocrine tumor liver metastases following yttrium-90 ( 90 Y) radioembolotherapy, as a function of image patterns at presentation for 90 Y radioembolotherapy. METHODS: The study cohort consisted of patients with hepatic metastatic neuroendocrine tumors treated with 90 Y at our institution during a two-year time period. Hepatic metastases were evaluated on a pretherapy study assessing relative arterial enhancement compared to liver, lesion size, necrosis of the lesion, and associated tumor burden in the liver. We used six response criteria: Response Evaluation Criteria in Solid Tumors (RECIST) size, World Health Organization (WHO) size, European Association for the Study of the Liver (EASL) necrosis guidelines, Choi size, Choi necrosis and combination of Choi size and necrosis. RESULTS: About 65 lesions in 17 patients met study criteria and formed the cohort. Statistically significant response was found for lesions < 5 cm vs those ≥5 cm with RECIST (P = 0.04), WHO (P = 0.002) and combined Choi criteria (P = 0.02). Hyperenhancing lesions demonstrated greater response only with the Choi size criteria (P = 0.04). Lesions with ≤ 50% necrosis on the pre-scan had statistically significant greater response with the Choi necrosis criteria (P = 0.01). There was no statistical significance for response comparing lesions < 2 cm vs ≥ 2 cm or in comparing the degrees of tumor burden. CONCLUSION: Based on our findings in this study, it is suggested that initial imaging findings, as listed above, are not a good predictor of response to 90 Y radioembolization. | Julia Neperud Armeen Mahvash Naveen Garg Ravi Murthy Janio Szklaruk | 2013 | World Journal of Radiology2013,5,6: | 3 |
| 5 | Imaging of musculoskeletal and tuberculosis显示文摘 | Sandra LM Mahvash R | 2001 | Radio Clin of North Am2001,39,: | 1 |
| 6 | Coregistration of digital photography of the human cortex and cranial magnetic resonance imaging for visualization of subdural electrodes in epilepsy surgery显示文摘 | Mehran Mahvash Roy Konig Jorg Wellmer | 2007 | Neurosurgery2007,61,: | 1 |
| 7 | Interaction of sulfur mustard with rat liver salt fractionated chromatin显示文摘 | Mahvash Jafari M. Nateghi A. Rabbani | 2009 | International Journal of Biological Macromolecules2009,,1: | 1 |
| 8 | Kinetic Growth Rate after Portal Vein Embolization Predicts Posthepatectomy Outcomes: Toward Zero Liver-Related Mortality in Patients with Colorectal Liver Metastases and Small Future Liver Remnant显示文摘 | Junichi Shindoh Mark J. Truty Thomas A. Aloia Steven A. Curley Giuseppe Zimmitti Steven Y. Huang Armeen Mahvash Sanjay Gupta Michael J. Wallace Jean-Nicolas Vauthey | 2013 | Journal of the American College of Surgeons2013,,: | 1 |
| 9 | FLAIR-/T,-/T2- co-registration for image-guided diagnostic and resective epilepsy surgery 显示文摘 | Mahvash M Konig R Urbach H | 2006 | Neurosurgery2006,58,1: | 1 |
| 10 | Coregistration of digital photography of the human cortex and cranial magnetic resonance imaging for visualization of subdural electrodes in epilepsy surgery 显示文摘 | Mahvash M Konig R Wellmer J | 2007 | Neurosurgery2007,61,: | 1 |
| 11 | Reversible ureteral obstruction due to polyomavirus infection after percutaneous nephrostomy catheter placement显示文摘 | Khan H Oberoi S Mahvash A | 2011 | Biol Blood Marrow Transplant2011,17,10: | 1 |
| 12 | Mechanics of dynamic needle insertion into a biological material 显示文摘 | Mahvash M Dupont P E | 2010 | IEEE Transactions on Biomedical Engineering2010,57,4: | 1 |
| 13 | Modeling the forces of cutting with scissors 显示文摘 | MAHVASH M MOHSEN V LIMING M K | 2008 | IEEE Transactions on Biomedical Engineering2008,55,3: | 1 |
| 14 | Haptic rendering of cutting: A fracture mechanics approach 显示文摘 | MAHVASH MOHSEN H VINCENT | 2001 | Haptics-e2001,2,3: | 1 |
| 15 | In patients undergoing video-assisted thoracoseopie surgery excision, what is the best way to locate a subeen- timetre solitary pulmonary nodule in order to achieve successful exci- sion? 显示文摘 | Mahvash Z Hafts B Chui YW | 2012 | Interact Cardiovase Thorae Surg2012,15,2: | 1 |
| 16 | Haptic rendering of cutting: a fracture mechanics approach显示文摘 | MAHVASH M HAYWARD V | 2001 | Haptics-e2001,2,3: | 1 |
| 17 | High-fidelity passive forcereflecting virtual environments 显示文摘 | Mahvash M Hayward V | 2005 | IEEE Transactions on Robotics2005,21,1: | 1 |
| 18 | Friction compensation for enhancing transparency of a teleoperator with compliant transmission显示文摘 | Mahvash M Okamura A | 2007 | IEEE Transactions on Robotics2007,23,6: | 1 |
| 19 | Analysis of the Efficacy of Portal Vein Embolization for Patients with Extensive Liver Malignancy and Very Low Future Liver Remnant Volume, Including a Comparison with the Associating Liver Partition with Portal Vein Ligation for Staged Hepatectomy Approa显示文摘 | Junichi Shindoh Jean-Nicolas Vauthey Giuzeppe Zimmitti Steven A. Curley Steven Y. Huang Armeen Mahvash Sanjay Gupta Michael J. Wallace Thomas A. Aloia | 2013 | Journal of the American College of Surgeons2013,,1: | 1 |
| 20 | 显示文摘 | Mahvash N Vernon J Relationship of medical status medications and salivary flow rates in adults of different ages | 1996 | Oral Surgery Oral Medicine Oral Pathology Oral Radiology and Endodontology1996,81,2: | 1 |