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| 1 | Propagation of Solitary Pulses in Optical Fibers with Both Self-Steepening and Quintic Nonlinear Effects显示文摘Pulse dynamics and stability in optical fibers in the presence of both self-steepening and quintic nonlinear effects are analyzed. Propagating profiles of the quintic derivative nonlinear Schr¨odinger model are isolated via two invariants of motion. The resulting canonical equation admits exact periodic propagating patterns in terms of the Jacobi elliptic functions, and solitary pulses are recovered in the long wave limit, i.e. degenerate cases of periodic profiles where each pulse is widely separated from the adjacent ones. Two families of such exact wave profiles are identified. The first one has a precise constraint concerning the magnitude of self-steepening and quintic nonlinear effects, while the second one permits more freedom. The reduction to the well established temporal soliton in an optical fiber waveguide in the absence of self-steepening and quintic nonlinearity is demonstrated explicitly. Numerical simulations are performed to identify regimes of parameter values where robust propagation patterns exist. | 李金花 C.Rogers K.W.Chow K.S.Chiang | 2014 | Communications in Theoretical Physics2014，61，6： | 2 |
| 2 | Standards of nutritional care in pediatric oncology: Results from a nationwide survey on the standards of practice in pediatric oncology. a Children’s Oncology Group study显示文摘 | Elena J.Ladas NancySacks PatBrophy Paul C.Rogers | 2006 | Blood Cancer2006，，3： | 1 |
| 3 | Impact of Sirolimus Duration on Hepatitis C Related Fibrosis Progression in Liver Transplant Recipients显示文摘 | M.Kim M.P.Curry C. C.Rogers | 2012 | American Journal of Transplantation2012，，5： | 1 |
| 4 | 肯尼亚泰塔山区东部弧形山云层森林的外来森林与本土森林树种多样性、丰富度和相似性比较(英文)显示文摘对肯尼亚东南部泰塔(Taita)山区的3片破碎的森林进行了树种生物多样性评估,比较外来的松树、柏树、桉树人工林的物种多样性以及外来树种森林和本土森林物种多样性。研究地点为Ngangao(120 hm2)、Chawia(86 hm2)和Mbololo(185 hm2)。采用Y型设计设立32个样区,包含65个小样区。按树种记录每个小样区胸高直径5cm和5cm以上的幼树,同时也记录了各树木的更新情况(幼苗和树苗)。用 Shannon-weiner指数计算了物种的多样性和均匀度。导处的 Shannon指数被进一步转化成有效的数值,用于展示物种多样性的差别幅度。为了评估物种多样性的差别,进行单因素方差分析,为了分离均值,分别用Tukey HSD法和Duncan检测法验证偶数和奇数样品。采用Jaccard相似指数评估物种的类似性。共有58个树种的林木密度变化在每公顷10到2000棵树之间。森林类型和立地之间的物种多样性存在显著差异。本地森林的物种多样性比外来树种森林高;Chawia立地的物种多样性比Nganga和Mbololo立地高,且更新的树种数量也比其他2个立地多,包括野柠檬木(Xymalos monospora)、黑皮密花木(Rapanea melanophloeos)、和(几内亚蒲桃(Syzygium guineense),这些树种具有低干扰属性。这些发现说明,本地森林物种多样性比较高,正如热带地区所预期。Chawia立地的物种多样性高说明此地经历干扰比其他2个立地大。在Chawia地区发现有低干扰树种更新,说明有长期土壤种子库的存在。在Nganga和Mbololo地区发现的外来树种样地上的更新较差情况,可能是缺少种子库所致,因为很多人工林是造在裸地上(如Nganga地区),或者是因为某些树种固有的生理特性(相生相克)抑制了其他树种的更新。 | Loice M.A.Omoro Petri K.E.Pellikka Paul C.Rogers | 2010 | Journal of Forestry Research2010，21，3： | 0 |
| 5 | 以血小板糖蛋白IIb/IIIa受体抑制作为隐静脉桥支架置入术的辅助治疗:随机分配接受血管阻塞或滤网血栓保护后的不同疗效显示文摘Aims: Although embolic protection devices reduce complications during saphenous vein graft(SVG) stenting, adverse events still occur in ~10%of patients. IIb/IIIa antagonists have not been proven effective during SVG intervention. We hypothesized that adjunctive use of these agents might enhance the efficacy of embolic protection devices. Methods and results: In the prospective, multicentre FilterWire EX Randomized Evaluation trial, 651 patients undergoing SVG stenting were randomized to either filter-based FilterWire EX or balloon occlusion/aspiration GuardWire embolic protection devices. IIb/IIIa inhibitor use was at the discretion of the investigator, with randomization stratified by intended use. Patients pre-selected for IIb/IIIa inhibitor use(n=345) had higher baseline risk, with increased 30-day major adverse cardiac events(MACE, 13.0 vs. 8.0%, P=0.03). GuardWire assigned patients treated with IIb/IIIa inhibitors had higher 30-day MACE compared with those not treated with IIb/IIIa inhibitors(16.0 vs. 6.3%, P=0.007). In contrast, MACE in high-risk FilterWire patients treated with IIb/IIIa inhibitors were similar to their lower risk, untreated counterparts(9.9 vs. 9.5%, P=0.89). Multivariable analysis detected a borderline significant(P=0.056) interaction for lower MACE between FilterWire and IIb/ IIIa inhibitor use. Adjustment by the propensity to use IIb/IIIa inhibitors resulted in a significant(P=0.023) interaction for lower MACE rates. IIb/IIIa inhibition in conjunction with FilterWire was associated with less abrupt closure, no reflow, or distal embolization. Conclusion: IIb/IIIa antagonists may improve procedural outcome during SVG stenting in high risk patients, utilizing filter-based embolic protection devices. | Jonas M. Stone G.W. Mehran R. C.Rogers 苏畅 | 2006 | 世界核心医学期刊文摘(心脏病学分册)2006，2，9： | 0 |
| 6 | Harry-Dym方程及其解显示文摘本文研究了三类Harry-Dym方程的初值问题,证明了解的存在性与正则性,梅造了特解,还举例说明不同的初值问题分别对应于全直线、半直线或有限区间上KdV方程的定解问题。 | 郭本瑜 C.Rogers | 1989 | 中国科学(A辑)1989，20，3： | 0 |
| 7 | 从零配件业务中获利显示文摘价值4000亿美元的全球零配件市场包含了各种产品,从一次性墨盒到游船发动机。零配件销售是耐用没备制造商的重要利润来源。事实上。财富100强中的大部分企业有40%的利润来自零配件销售。 | Tim Gallagher Mark D.Mitchke Matthew C.Rogers | 2005 | 商学院2005，，10： | 0 |
| 8 | Innate and adaptive resistance mechanisms to arginine deprivation therapies in sarcoma and other cancers显示文摘Many cancers lack functional expression of the enzyme argininosuccinate synthetase 1(ASS1)that is necessary for synthesis of L-arginine.These cancers must import arginine for survival and growth,and this reliance can be targeted by arginine-degrading extracellular enzymatic drugs,most commonly PEGylated arginine deiminase.These enzymes can become targets of the immune system,reducing their effectiveness,but PEGylation improves the in vivo stability.Arginine deprivation causes cell death in some cancers,but others gain resistance by expressing ASS1 after a starvation response is induced.Other resistance mechanisms are possible and explored,but these have not been observed specifically in response to arginine deprivation.Future studies,especially focusing on the mechanisms of ASS1 upregulation and metabolic adaptations,may yield insights into preventing or taking advantage of resistance adaptations to make arginine deprivation therapy more effective. | Leonard C.Rogers Brian A.Van Tine | 2019 | Cancer Drug Resistance2019，2，3： | 0 |
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