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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 | Ultra-thin, planar, Babinet-inverted plasmonic metalenses显示文摘We experimentally demonstrate the focusing of visible light with ultra-thin,planar metasurfaces made of concentrically perforated,30-nm-thick gold films.The perforated nano-voids—Babinet-inverted(complementary)nano-antennas—create discrete phase shifts and form a desired wavefront of cross-polarized,scattered light.The signal-to-noise ratio in our complementary nano-antenna design is at least one order of magnitude higher than in previous metallic nano-antenna designs.We first study our proof-of-concept‘metalens’with extremely strong focusing ability:focusing at a distance of only 2.5 mm is achieved experimentally with a 4-mm-diameter lens for light at a wavelength of 676 nm.We then extend our work with one of these‘metalenses’and achieve a wavelength-controllable focal length.Optical characterization of the lens confirms that switching the incident wavelength from 676 to 476 nm changes the focal length from 7 to 10 mm,which opens up new opportunities for tuning and spatially separating light at different wavelengths within small,micrometer-scale areas.All the proposed designs can be embedded on-chip or at the end of an optical fiber.The designs also all work for two orthogonal,linear polarizations of incident light. | Xingjie Ni Satoshi Ishii Alexander V Kildishev Vladimir M Shalaev | 2013 | Light(Science & Applications)2013,2,1: | 20 |
| 3 | Isolation and Expression Analysis of Two Genes Encoding Cinnamate 4-Hydroxylase from Cotton(Gossypium hirsutum)显示文摘Two genes(GhC4H1 and GhC4H2) that encode putative cotton cinnamate 4-hydroxylases that catalyze the second step in the phenylpropanoid pathway were isolated from developing cotton fibers. GhC4H1 and GhC4H2 each contain open reading frames of 1 518 base pairs(bp) in length and both encode proteins consisting of 505 amino acid residues. They are 90.89% identical to each other at the amino acid sequence level and belong to class I of plant C4 Hs. GhC4H1 and GhC4H2 genomic DNA are 2 247 and 2 161 bp long, respectively, and contain two introns located at conserved positions relative to the coding sequence. GhC4H1 and GhC4H2 promoters were isolated and found to contain many cis-elements(boxes P, L and AC-I element) previously identified in the promoters of other phenylpropanoid pathway genes. Histochemical staining showed GUS expression driven by the GhC4H1 and GhC4H2 promoters in ovules and fibers tissues. GhC4H1 and GhC4H2 were also widely expressed in other cotton tissues. GhC4H2 expression reached its highest level during the elongation stage of fiber development, whereas GhC4H1 expression increased during the secondary wall development period in cotton fibers. Our results contribute to a better understanding of the biochemical role of GhC4H1 and GhC4H2 in cotton fiber development. | NI Zhi-yong LI Bo Neumann M Peter Lü Meng FAN Ling | 2014 | Journal of Integrative Agriculture2014,13,10: | 3 |
| 4 | 妊娠并发症及妊娠特点与未来血压升高风险的关系显示文摘妊娠特点与心血管病风险相关,但其与高血压或血压水平的独立关联仍不明确。该研究将瑞典医学出生登记与Vsterbotten(瑞典北部)干预研究数据相联系。纳入妊娠前无高血压的40岁经产女性15 896人,用线性回归和Logistic回归分析以前妊娠因素与血压水平及高血压的关系。妊娠因素包括胎次、首次分娩年龄、子痫前期、妊娠期糖尿病、胎盘早剥、小于胎龄儿(出生体质量〈相同胎龄儿第3百分位)或死胎。 | Parikh NI Norberg M Ingelsson E Cnattingius S Vasan RS Domellf M Jansson JH Edstedt Bonamy AK 赵狄 练桂丽 | 2017 | 中华高血压杂志2017,25,2: | 3 |
| 5 | 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 |
| 6 | Effect of closure of live poultry markets on poultry-to-person transmission of avian influenza A H7N9 virus: an ecological study显示文摘 | Hongjie Yu Joseph T Wu Benjamin J Cowling Qiaohong Liao Vicky J Fang Sheng Zhou Peng Wu Hang Zhou Eric H Y Lau Danhuai Guo Michael Y Ni Zhibin Peng Luzhao Feng Hui Jiang Huiming Luo Qun Li Zijian Feng Yu Wang Weizhong Yang Gabriel M Leung | 2013 | The Lancet2013,,: | 2 |
| 7 | 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 |
| 8 | Disruption of biofilms from sewage pipes under physical and chemical conditioning显示文摘Biofilms grown inside two sewage collecting pipes located in industrial and residential areas are studied. Bacterial biomass inside three layers of biofilms was evaluated. Biofilm cohesion under different mixing rate and ionic strength was also investigated. Effects of physical and chemical parameters in the biofilms were evaluated by monitoring turbidity,chemical and biochemical oxygen demands. Extracted organic matter from biofilms was partitioned to polar,aromatic and saturated fractions using activated silica column chromatography. Results revealed that bacterial biomass growth depending on biofilm thickness and stratification. The most loaded stratum in bacterial biomass was the sewage-biofilm interface stratum that represented 51% of the total bacterial biomass. Stirring rate and ionic strength of mono-and bivalent salts showed a major influence in biofilm disruption. The stirring time enhanced the exchange dynamic and matter capture between biofilm fragments at the critical stirring rate 90 r/min. Sodium chloride showed the dispersing effect on biofilms in suspension,and decreased the BOD5(biochemical oxygen demand) beyond the physiological salt concentration. | Charbel Mahfoud Antoine El Samrani Rita Mouawad Walid Hleihel Rim El Khatib Bruno S. Lartiges Nam Ouani | 2009 | Journal of Environmental Sciences2009,21,1: | 2 |
| 9 | Neurocontrol of cable vibration using semiactive magnetorheological dampers 显示文摘 | Ni Y Q Chen Y Ko J M et ol | 2002 | Engineering Structures2002,24,: | 1 |
| 10 | Layered double hydroxides as supports for intercalation and sustained release of antihypertensive drugs 显示文摘 | XIA S J NI Z M XU Q | 2008 | J Solid State Chem2008,181,: | 1 |
| 11 | ER chaperones in mammalian development and human diseases 显示文摘 | Ni M Lee AS | 2007 | FEBS Lett2007,581,19: | 1 |
| 12 | The role of peripheral N--methyl--D--aspartate receptors in muscle hyperalgesia 显示文摘 | Ro JY Nies M Zhang Y | 2005 | Neuroreport2005,16,5: | 1 |
| 13 | Random seismic response analysis of adjacent buildings coupled with non-linear hysteretic dampers显示文摘 | Ni Y Q Ko J M Ying Z G | 2001 | Journal of Sound and Vibration2001,246,3: | 1 |
| 14 | Beta-endorphin neuro-nal cell transplant reduces corticotropin releasing hormone hyperre-sponse to lipopolysaccharide and eliminates natural killer cell func-tional deficiencies in fetal alcohol exposed rats显示文摘 | Boyadjieva NI Ortigüela M Arjona A | 2009 | Alcohol ClinExp Res2009,33,5: | 1 |
| 15 | A riccati equation approach to the design of linear robust controllers显示文摘 | Ni M L Wei H X | 1995 | Automatica1995,29,6: | 1 |
| 16 | Electricity price forecasting with confidence-interval estimation through an extended ARIMA approach显示文摘 | ZHOU M YAN Z NI Y X | 2006 | IEEE Proceedings-Generation Transmission and Distribution2006,153,2: | 1 |
| 17 | Theoretical studies on the magnetic switching controlled by stacking patterns of bis(maleonitriledithiolato) nickelate(III) dimers显示文摘 | Ni Z P Ren X M Ma J | 2005 | J Am Chem Soc2005,127,14: | 1 |
| 18 | Secure prophet address allo- cation for MANETs 显示文摘 | ZHOU Hong-bo MUTKA M W NI L M | 2010 | Security and Communication Networks2010,3,1: | 1 |
| 19 | Multifunctional slow-release urea fertilizer from ethylcellulose and superabsorbent coated for- mulations显示文摘 | NI B L LIU M Z LOS Y | 2009 | Chemical En-ineerin- lournal2009,155,3: | 1 |
| 20 | Binding of phytochrome B to its nuclear signalling partner PIF3 is reversibly induced by light显示文摘 | Ni M Tepperman J M Quail P H | 1999 | Nature1999,400,: | 1 |