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| 1 | Current concepts on osteonecrosis of the femoral head显示文摘It is estimated that 20000 to 30000 new patients are diagnosed with osteonecrosis annually accounting for approximately 10% of the 250000 total hip arthroplasties done annually in the United States. Thelack of level 1 evidence in the literature makes it difficult to identify optimal treatment protocols to manage patients with pre-collapse avascular necrosis of the femoral head, and early intervention prior to collapse is critical to successful outcomes in joint preserving procedures. There have been a variety of traumatic and atraumatic factors that have been identified as risk factors for osteonecrosis, but the etiology and pathogenesis still remains unclear. Current osteonecrosis diagnosis is dependent upon plain anteroposterior and frog-leg lateral radiographs of the hip, followed by magnetic resonance imaging(MRI). Generally, the first radiographic changes seen by radiograph will be cystic and sclerotic changes in the femoral head. Although the diagnosis may be made by radiograph, plain radiographs are generally insufficient for early diagnosis, therefore MRI is considered the most accurate benchmark. Treatment options include pharmacologic agents such as bisphosphonates and statins, biophysical treatments, as well as joint-preserving and joint-replacing surgeries. the surgical treatment of osteonecrosis of the femoral head can be divided into two major branches: femoral head sparing procedures(FHSP) and femoral head replacement procedures(FHRP). In general, FHSP are indicated at pre-collapse stages with minimal symptoms whereas FHRP are preferred at post-collapse symptomatic stages. It is difficult to know whether any treatment modality changes the natural history of core decompression since the true natural history of core decompression has not been delineated. | Joaquin Moya-Angeler Arianna L Gianakos Jordan C Villa Amelia Ni Joseph M Lane | 2015 | World Journal of Orthopedics2015,6,8: | 94 |
| 2 | Report of Incidence and Mortality in China Cancer Registries,2008显示文摘Objective: Annual cancer incidence and mortality in 2008 were provided by National Central Cancer Registry in China, which data were collected from population‐based cancer registries in 2011. Methods: There were 56 registries submitted their data in 2008. After checking and evaluating the data quality, total 41 registries' data were accepted and pooled for analysis. Incidence and mortality rates by area (urban or rural areas) were assessed, as well as the age‐ and sex‐specific rates, age‐standardized rates, proportions and cumulative rate. Results: The coverage population of the 41 registries was 66,138,784 with 52,158,495 in urban areas and 13,980,289 in rural areas. There were 197,833 new cancer cases and 122,136 deaths in cancer with mortality to incidence ratio of 0.62. The morphological verified rate was 69.33%, and 2.23% of cases were identified by death certificate only. The crude cancer incidence rate in all areas was 299.12/100,000 (330.16/100,000 in male and 267.56/100,000 in female) and the age‐standardized incidence rates by Chinese standard population (ASIRC) and world standard population (ASIRW) were 148.75/100,000 and 194.99/100,000, respectively. The cumulative incidence rate (0-74 years old) was of 22.27%. The crude incidence rate in urban areas was higher than that in rural areas. However, after adjusted by age, the incidence rate in urban was lower than that in rural. The crude cancer mortality was 184.67/100,000 (228.14/100,000 in male and 140.48/100,000 in female), and the age‐standardized mortality rates by Chinese standard population (ASMRC) and by world population were 84.36/100,000 and 114.32/100,000, respectively. The cumulative mortality rate (0-74 years old) was of 12.89%. Age‐adjusted mortality rates in urban areas were lower than that in rural areas. The most common cancer sites were lung, stomach, colon‐rectum, liver, esophagus, pancreas, brain, lymphoma, breast and cervix which accounted for 75% of all cancer incidence. Lung cancer was the leading cause of cancer death, followed by gastric cancer, liver cancer, esophageal cancer, colorectal cancer and pancreas cancer, which accounted for 80% of all cancer deaths. The cancer spectrum varied by areas and sex in rural areas, cancers from digestive system were more common, such as esophageal cancer, gastric cancer and liver cancer, while incidence rates of lung cancer and colorectal cancer were much higher in urban areas. In addition, breast cancer was the most common cancer in urban women followed by liver cancer, gastric cancer and colorectal cancer. Conclusion: Lung cancer, gastric cancer, colorectal cancer, liver cancer, esophageal cancer and female breast cancer contributed to the increased incidence of cancer, which should be paid more attention to in further national cancer prevention and control program. Different cancer control strategies should be carried out due to the varied cancer spectrum in different groups. | Wan-qing C hen Rong-shou Zheng Si-wei Zhang Ni Li Ping Zhao Guang-lin Li Liang-you Wu Jie He | 2012 | Chinese Journal of Cancer Research2012,24,3: | 45 |
| 3 | 从660 km边界地形推断地球不连续的化学分层显示文摘板块构造学说是固体地.球科学的基石,刻画了岩石圈的基本运动学特征,而地幔对流理论则为理解板块运动提供了动力学基础。然而长期以来,地幔对流模式的研究一直存在巨大的争议,分玻主要集中于全见幔对流和上下他幔分层对流两个模式。近年来还有一些学者提出了地混合对流模式的猜想,即一些区域地幔分层对流、其他区域上下他做整体对流。已有研究表明,温度异帯及化学异常均可造成大尺度(1000km)和中等尺度(100km)的间斷面起伏。 | 张宝华 Wu W Ni S Irving J C | 2019 | 矿物岩石地球化学通报2019,38,3: | 6 |
| 4 | On the location and profile of spike-layer solutions to a singularly perturbed semilinear Dirichlet problems: Intermediate solutions 显示文摘 | Ni W M Takagi I Wei J C | 1998 | Duke Math J1998,94,3: | 2 |
| 5 | 基于颜色特征的含黄曲霉毒素玉米颗粒的检出方法显示文摘为快速准确识别出感染黄曲霉毒素的玉米颗粒,基于黄曲霉毒素在365 nm紫外光照射下可发出黄绿色荧光(bright greenish-yellow fluorescence,BGYF)的特性,提出了一种以颜色为特征量的感染毒素颗粒的检出方法。首先针对同一组玉米颗粒样本分别获取其在紫外光和可见光下的2幅图像,对可见光图像进行二值化、颗粒区域填充等预处理操作,得到玉米颗粒的轮廓与位置信息;然后将进行彩色增强后的紫外光图像与预处理后的可见光图像掩膜;最后在掩膜图像中通过RGB模型中G通道下的阈值作为分割参数识别玉米颗粒上的感染区域。结果表明,所提出的识别方法对能够发出荧光的含黄曲霉菌玉米颗粒识别准确率达到84%以上,对含有黄曲霉毒素的正确检出率可达77.8%以上,能够达到区分检测的要求。 | 褚璇 王伟 Lawrence Kurt C Ni Xinzhi Heitschmidt Gerald W 张楠楠 彭彦昆 | 2015 | 中国粮油学报2015,30,4: | 2 |
| 6 | Intricate ruled surface machining by wire-EDM 显示文摘 | Ni Z Liu Z Yu C | 1991 | Journal of Materials Processing Technology1991,28,12: | 2 |
| 7 | Chirality communications between inorganic and organic compounds显示文摘1|INTRODUCTION Chirality spans over almost every size range,from mole-cules to biological systems and even to galaxies.It is one of the fascinating geometrical properties with a lot of amazing manifestations in the material world.As chemi-cal researchers,we are more interested in chirality at the molecular scale and nanoscale.Chiral molecules are found important in life science,agrochemicals,pharma-ceutical industries,biosensing,display materials,and so forth.1–5 Chirality stems from a structure lacking sym-metry elements of inversion symmetry and mirror‐plane,which makes the structure not superimposable with its mirror image.Without these two kinds of symmetries,any structure is chiral,besides conventional chiral organics or spiral inorganic structures.The essence of chirality is the stereochemistry of molecules or nanostructures. | Bing Ni Helmut Cölfen | 2021 | SmartMat2021,2,1: | 2 |
| 8 | 氨氯地平和左旋氨氯地平对高血压患者血管内皮功能的影响显示文摘已证明氨氯地平可改善高血压患者的血管内皮功能,但左旋氨氯地平是否具有类似作用仍存在争议。该研究比较氨氯地平和左旋氨氯地平对高血压患者血管内皮功能的影响,应用体外细胞培养研究其相关作用机制。方法:该研究为一项随机、交叉试验。选取原发性高血压患者24例服用氨氯地平和左旋氨氯地平各6周, | He Y Si D Yang C Ni L Li B Ding M Yang P 罗冬梅 叶鹏 | 2014 | 中华高血压杂志2014,22,4: | 2 |
| 9 | Noninvasive measurements of infarct size after thrombolysis with a necrosis-avid MRI contrast agent 显示文摘 | Pislaru SV Ni Y Pislaru C | 1999 | Circulation1999,74,: | 1 |
| 10 | An overview of hydrogen production from biomass显示文摘 | Meng Ni Dennis Y C Leung Michael K H Leung Sumathy K | 2006 | Fuel Processing Technology2006,,87: | 1 |
| 11 | Hepatic-portal venous gas in acute colonic diverticulitis 显示文摘 | Zielke A Hasse C Nies C | 1998 | Surg Endosc1998,12,3: | 1 |
| 12 | Pattern formation, synchronization, and outbreak of biodiversity in cyclically competing games显示文摘 | WANG W X NI X LAI Y C | 2011 | Phys Rev E2011,83,01: | 1 |
| 13 | Power-Efficient Cross-Layer De- sign for OFDMA Systems with Heteroge- neous QoS, Imperfect CS显示文摘 | ZARAKOVITIS C C QIANG Ni SKORDOULIS D E | 2012 | [EEE Transactions on Ve- hicular Technology2012,61,2: | 1 |
| 14 | Correlation between melanoma angiogenesis and the mesenchymal stem cells and endothelial progenitor cells derived from bone marrow显示文摘 | Sun B Zhang S Ni C | | 0,,: | 1 |
| 15 | The neuropsychiatry of vitamin B12 deficiency in elderly patients显示文摘 | Lachner C Steinle NI Regenold WT | 2012 | J Neuropsychiatry Clin Neurosci2012,24,1: | 1 |
| 16 | A semi-fragile lossless digital watermarking scheme based on integer wavelet transform 显示文摘 | Zou D SHX Y Q NI Z C | 2006 | IEEE Transactions on Circuits Systems for Video Technology2006,16,10: | 1 |
| 17 | Determinants and Economic Consequences of Nonfinancial Disclosure Quality显示文摘 | Dong Y Fu R Gao F Ni C | 2015 | European Ac-counting Review2015,,: | 1 |
| 18 | Preparation and characterization of NaSm9(SiO4)6O2 powders with infrared absorptive properties显示文摘 | ZHANG W Y LU C H NI Y R | 2011 | Materials Letters2011,65,11: | 1 |
| 19 | Prognostic value of CD166 expressionin cancers of the digestive system: a systematic review and meta analysis显示文摘 | Ni C Zhang Z Zhu X | 2013 | PLoS One2013,8,70: | 1 |
| 20 | Rice seedling tolerance to phosphorus stress in solution culture and soil显示文摘 | Ni J J Wu P Lou A C | 1998 | Nutr Cycl Agroecosys1998,51,: | 1 |