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The Measurement of Treatment Effect in Reflux Laryngitis

作者： (美)david R. hanson

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中国眼耳鼻喉科杂志 1998年第1期 68-72,67页

作者： Jack Jiang Namita Goyal david hanson Perry kamel Peter Kahrilas

Larynyoseopic findings of patientsdiagnosed with reflux laryngitis Commonlyshow the presence of erythema of the pha-rynx and larynx which is often associatedwith edema, or accumulation of fluid in thetissues^8. Erythe... 详细信息

关键词：耳鼻喉科杂志中国

Acetabular fractures——Risk factors for a negative outcome of the surgical management

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中华创伤骨科杂志 2004年第7期 97-100页

作者： Beate P. hanson,david L. Helfet,Suthorn Bavonratanavech,Ian Harris AO Publishing Stettbachstrasse 10CH-8600Dübendorf Switzerland AO Publishing Stettbachstrasse 10CH-8600Dübendorf Switzerland AO Publishing Stettbachstrasse 10CH-8600Dübendorf Switzerland AO Publishing Stettbachstrasse 10CH-8600Dübendorf Switzerland

The optimal method of managing displaced acetabular fractures is not established in the literature. It may be that open reduction and internal fixation in general is universally preferred; however, specific types of hardware have not been compared and therefore recommendations cannot be made. Potential risk factors consistently reported to be associated with poor to fair outcomes include older age, poor post operative reduction, more severe fracture characteristics, femoral head injury, and a delay in treatment.

关键词： Acetabular fractures Fracture fixation, internal Aged Femoral fractures

The Measurement of Treatment Effect in Reflux Laryngitis

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中国眼耳鼻喉科杂志 1997年第5期 196-197页

作者： Jack Jiang Namita Goyal david hanson Perry Kamel Peter Kahrilas 张玉海

近日我们收到上海医科大学客座教授、美国西北大学医学院喉生理实验室主任JackJiang博士寄来这篇总结了他和几位著名专家近年对本专题研究成果的论著。文中介绍了以现代仪器和科学方法结合临床应用的研究结果,颇有新意,值得参阅,我们衷... 详细信息

近日我们收到上海医科大学客座教授、美国西北大学医学院喉生理实验室主任JackJiang博士寄来这篇总结了他和几位著名专家近年对本专题研究成果的论著。文中介绍了以现代仪器和科学方法结合临床应用的研究结果,颇有新意,值得参阅,我们衷心感谢作者对本刊的关心与支持。因该文寄来前,本刊此期已全部定稿送印刷厂,现特挤出版面,先登部分内容,以飨读者,余拟下期继续刊登。

关键词：受体阻滞剂红色指数频率微扰疗效评估返流性信噪比声带治疗后嗓音粗糙度

Late Ordovician Mass Extinction: Earth, fire and ice

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National Science Review 2024年第1期11卷 51-65页

作者： david A.T.Harper Palaeoecosystems Group Department of Earth SciencesDurham University

The Late Ordovician Mass Extinction was the earliest of the ‘big’ five extinction events and the earliest to affect the trajectory of metazoan life. Two phases have been identified near the start of the Hirnantian period and in the middle. It was a massive taxonomic extinction, a weak phylogenetic extinction and a relatively benign ecological extinction. A rapid cooling, triggering a major ice age that reduced the temperature of surface waters, prompted a drop in sea level of some 100 m and introduced toxic bottom waters onto the shelves. These symptoms of more fundamental planetary processes have been associated with a range of factors with an underlying driver identified as volcanicity. Volcanic eruptions, and other products, may have extended back in time to at least the Sandbian and early Katian, suggesting the extinctions were more protracted and influential than hitherto documented.

关键词： Ordovician LOME paleoecology palaeobiogeography biotas

One-dimensional monotone nonautonomous dynamical systems

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Science China Mathematics 2024年第2期67卷 281-314页

作者： david Cheban Faculty of Mathematics and Computer Science Laboratory of Fundamental and Applied MathematicsMoldova State UniversityChisinau 2009Moldova

This work is devoted to the study of the dynamics of one-dimensional monotone nonautonomous(cocycle) dynamical systems. A description of the structures of their invariant sets, omega limit sets,Bohr/Levitan almost periodic and almost automorphic motions, global attractors, and pinched and minimalsets is given. An application of our general results is given to scalar differential and difference equations.

关键词： one-dimensional dynamics pinched and minimal sets global attractors monotone nonautonomous cocycle almost periodic solutions scalar differential/difference equations

Kerogen Kinetic Distributions and Simulations Provide Insights into Petroleum Transformation Fraction (TF) Profiles of Organic-Rich Shales

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Journal of Earth Science 2024年第3期35卷 747-757页

作者： david A.Wood DWA Energy Limited Lincoln LN59JPUnited Kingdom

Two hundred and fifty single first-order Arrhenius reactions are simulated to generate S2 pyrograms at three heating rates 25,15,and 5°C·*** activation energy(E)and pre-exponential factor(A)of the reactions simulated follow a long-established trend of those variable values displayed by shales and *** characteristics of the transformation fraction(TF)profiles(product generation window temperatures)of the simulated single reactions are compared to the TF profiles of recorded shale pyrograms generated by multiple reactions with different E-A values lying near the defined E-A *** similarities and differences are observed between the TF profile values of the two *** similarities support the spread of E-A values involved in shale pyrogram best *** differences are most likely explained by the complexity of the multiple kerogen first-order and second-order reactions contributing to the recorded shale pyrograms versus the simplicity and crispness of the single first-order reactions *** results also justify the validity of using the previously described“variable E-A pyrogram-fitting method”of multi-heating-rate shale pyrograms enabling optimizers to choose multiple reactions from an unlimited range of E-A *** contrast,further doubt is cast on the validity of the constant-A pyrogram-fitting method used by the Easy%Ro technique,in that a distribution of reactions with a single A value is unlikely to represent the complex variety of kerogen macerals observed in shale *** profiles generated by the variable E-A pyrogram-fitting method lie close to the established E-A trend and are likely to provide more realistic TF generation window temperatures than TF profiles generated by the constant-A pyrogram-fitting method.

关键词： transformation fraction profiles simulated S2 pyrograms multiple heating rates kerogen/shale kinetics S2 pyrogram fitting techniques kerogen petroleum research.

Analysis of ancient mass extinction recoveries in marine environments: generating strategies for managing outcomes of the current mass extinction

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National Science Review 2024年第1期11卷 8-10页

作者： david J.Bottjer Department of Earth Sciences University of Southern California

The defining feature of a mass extinction and its associated recovery is the global amount of extinction that occurred[1]. However, there is finer-scale detail to the story, as seen in the ongoing modern mass extinction(the sixth mass extinction), which exhibits variable effects among marine ecosystems and environments, and hence geographic areas [1].

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Current state-of-the-art review of footwear–ground friction

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Friction 2024年第10期12卷 2188-2204页

作者： david REBENDA Tomáš SÁHA Footwear Research Centre University InstituteTomas Bata University in ZlinZlin 76001Czech Republic Faculty of Mechanical Engineering Brno University of TechnologyBron 61600Czech Republic

The most important role of footwear is to ensure safe,functional walking,and foot *** the proper functionality of not only the work shoes,the anti-slip behavior of the shoe under various conditions and environments plays an important role in the prevention of slips,trips,falls,and consequent *** article is intended to review the current understanding of the frictional mechanisms between shoe outsoles and various counterfaces that impact the evaluation of outsole *** research focuses on the mechanisms driving outsole friction on different ground surfaces or the definition and description of parameters that influence outsole ***,the review discusses the effect of various surface contaminants on footwear ***,challenges and outlooks in the field of footwear outsoles are briefly mentioned.

关键词： shoe outsole composite slipperiness coefficient of friction(COF) adhesion safe walk