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Study on the Degradation and Synergistic /antagonistic Antioxidizing Mechanism of Phenolic /aminic Antioxidants and Their Combinations

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润滑油 2014年第3期29卷 45-55页

作者： Vincent j.Gatto Alfonso Ortiz charles Zha jason Chen jeffrey Wang Albemarle Corporation Baton Rouge Albemarle Corporation(Shanghai)

Oxidation stability of lubricating oil is critical for the smooth operation of industrial equipment such as *** formation is a major issue in turbine ***,the turbine oil industry employs antioxidants,especially,the combination of aminic and phenolic antioxidants,as the key additives to reduce sludge *** amines,primarily PANA,are considered as the most effective antioxidants in terms of oxidation induction time(OIT)measured by the RPVOT ***,PANA is also a sludge *** antioxidants are normally used in combination with the aminic *** is widely believed that there exists a synergistic effect between the phenolic and aminic *** the interaction mechanism between the two types of antioxidants,it is generally accepted that phenolics act as a hydrogen donor to help regenerate the consumed aminic *** mechanism can only explain some of the phenomena observed in field practice,but there are many other questions remaining unanswered including the antagonistic effect between PANA and *** this study,we used HPLC,FTIR and LC-MS to monitor the degradation products of the oil systems that were formulated with various aminic and phenolic *** the APANA alone system,we identified the formation of dimers and trimers of *** the PANA alone system,we identified the formation of dimers and *** dimers,trimers,and tetramers of PANA have very limited *** findings therefore help explain why PANA is a sludge *** oligomerizations(dimerization,trimerization,etc.)regenerate the N-H functionality,thus explaining why the PANA as well as other amines are very effective *** the PANA/phenolic system,the oligomers of PANA were greatly ***,we identified species that were formed by the recombination of the PANA radicals,or the PANA oligomeric radicals with the phenolic ***,to our knowledge,has not been reporte

关键词：石油产品副产品石油原油

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French Spine Surgery Society guidelines for management of spinal surgeries during COVID-19 pandemic

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World journal of Clinical Cases 2020年第10期8卷 1756-1762页

作者： Solène Prost Yann Philippe charles jérome Allain jean-Luc Barat Henri d'Astorg Manuel Delhaye Chistophe Eap Fahed Zairi Pierre Guigui Brice Ilharreborde jean Meyblum jean-charles Le Huec Nicolas Lonjon Guillaume Lot Olivier Hamel Guillaume Riouallon Stéphane Litrico Patrick Tropiano Benjamin Blondel Aix-Marseille Université APHMCNRSISMCHU TimoneUnitéde Chirurgie RachidienneMarseille 13005France Service de Chirurgie du Rachis Hopitaux Universitaires de StrasbourgStrasbourg 67200France Institut Parisien du dos Paris 75005France Service de Neurochirurgie Hopital privéClairval-Ramsay santéMarseille 13009France Unitéde Chirurgie du Rachis Centre Orthopédique SantyLyon 69008France Centre Francilien du dos Versailles 78000France CHU Reims Hopital Maison BlancheNeurochirurgieReims 51100France Hopital PrivéLe Bois Ramsay Santé Lille 59000France Hopital Européen Georges-Pompidou HEGP Paris 75015France Service de Chirurgie Orthopédique Pédiatrique CHU Robert DebréAPHPUniversitéde ParisParis 75019France Service de Chirurgie Orthopédique Groupe Hospitalier Paris Saint-JosephParis 75014France Polyclinique Bordeaux Nord Aquitaine Bordeaux 33300France Service de Neurochirurgie Hopital Gui de ChauliacMontpellier 34090France Hopital-Fondation Rothschild Service de NeurochirurgieParis 75019France Clinique Des Cèdres Service de Neurochirurgie Chateau D’AlliezCornebarrieu 31700France Hopital Paris Saint-joseph Paris 75014France Unitéde Chirurgie Rachidienne Hopital Pasteur 2CHU de NiceNice 06001France

Since the outbreak of coronavirus disease 2019(COVID-19)in December 2019 in China,various measures have been adopted in order to attenuate the impact of the virus on the *** regard to spine surgery,French physicians are devoted to take place in the national plan against COVID-19,the French Spine Surgery Society therefore decided to elaborate specific guidelines for management of spinal disorders during COVID-19 pandemic in order to prioritize management of patients.A three levels stratification was elaborated with Level I:Urgent surgical indications,Level II:Surgical indications associated to a potential loss of chance for the patient and Level III:Non-urgent surgical *** also report French experience in a COVID-19 cluster region illustrated by two clinical *** hope that the guidelines formulated by the French Spine Surgery Society and the experience of spine surgeons from a cluster region will be helpful in order optimizing the management of patients with urgent spinal conditions during the pandemic.

关键词： COVID-19 Spine Surgery Guidelines Organization Cluster region

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监守自盗

监守自盗

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作者：查尔斯·弗格森 charles·Ferguson导演

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Rac1在内皮细胞韦伯潘力氏小体释放中的作用

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中华心血管病杂志 2004年第2期32卷 161-166页

作者：杨水祥闫娟陈明哲胡大一 charles j Lowenstei 同仁医院心脏中心北京100730 清华大学医学院 Division of Cardiology

目的　探讨人主动脉内皮细胞 (HAEC)韦伯潘力氏小体 (Webel Paladebody ,WPB)释放的信号传导机制。方法　假设小G蛋白Rac1和活性氧自由基 (ROS)介导内皮细胞WPB的释放。通过使用腺病毒介导的Rac1基因的充分表达 ,观察HAEC产生和清除ROS... 详细信息

目的　探讨人主动脉内皮细胞 (HAEC)韦伯潘力氏小体 (Webel Paladebody ,WPB)释放的信号传导机制。方法　假设小G蛋白Rac1和活性氧自由基 (ROS)介导内皮细胞WPB的释放。通过使用腺病毒介导的Rac1基因的充分表达 ,观察HAEC产生和清除ROS的过程 ,以及对WPB释放的影响。结果　凝血酶 (1单位 ,30min)介导WBP释放增加 (较基础值增加了 3倍 )的同时 ,使Rac GTP结合活性及ROS分别增加了 3 5倍和 2 4倍。与对照组比较 ,阴性突变的腺病毒Rac N17转染使凝血酶处理和未处理组HAEC中WPB的释放分别减少了 77%和 6 4 % ,使ROS分别降低了 83 6 %和6 5 5 %。而且 ,抗氧化剂过氧化氢酶和N 乙酰半胱氨酸分别使WPB的释放较对照组下降了 34%和79 %。同时 ,证实Rac1位于ROS调节WPB释放途径的上游。结论　小G蛋白Rac1介导HAEC凝血酶诱导的WPB的释放。WPB的释放机制是Rac1依赖的ROS调节过程。

关键词： Racl 内皮细胞韦伯潘力氏小体自由基

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Biochar applications influence soil physical and chemical properties,microbial diversity,and crop productivity:a meta-analysis

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Biochar 2022年第1期4卷 1055-1071页

作者： Hardeep Singh Brian K.Northup charles W.Rice P.V.Vara Prasad Department of Agronomy Kansas State University2002 Throckmorton Plant Sciences Center1712 Claflin RoadManhattanKS 66506USA United States Department of Agriculture-Agricultural Research Service Grazinglands Research LaboratoryEl-RenoOK 73036USA

Biochar is a widely known soil *** we synthesize the available information on influence of biochar application on different soil properties and crop productivity using *** data on influence of biochar applications on different soil physical,chemical,microbial properties,and crop productivity were extracted from literature and statistically *** on selection criteria,59 studies from the literature published between 2012 and 2021 were selected for the *** were developed between effect size of biochar application on different soil properties and crop *** of biochar increased soil pH,cation exchange capacity,and organic carbon by 46%,20%,and 27%,respectively,with greater effects in coarse and fine-textured *** on chemical properties were variable among biochar prepared from different *** physical properties,biochar application reduced bulk densities by 29%and increased porosity by 59%.Biochar prepared at higher pyrolytic temperatures(>500℃)improved bulk density and porosity to greater extents(31%and 66%,respectively).Biochar prepared at lower pyrolytic temperatures(<500℃)had a greater effect on microbial diversity(both bacterial and fungal),with more diverse bacterial populations in medium and coarse textured soils,while fungal diversity increased in fine textured *** applications increased crop productivity only in fine and coarse textured *** effect size of biochar application on crop productivity was correlated with responses to physical properties of *** meta-analysis highlighted the need to conduct long-term field experiments to provide better explanations for changes in biochar properties as it undergoes aging,its longer-term effects on soil properties,and timing of re-application of different biochars.

关键词： Biochar Crop productivity Microbial diversity Soil physical properties Soil chemical properties

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Fundamentals of investments : 3rd ed.

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2005年

作者： charles j. Corrado Bradford D. jordan.

Course resources included: Online learning center’s premium centent access card; stock-trak portfolio simulation.

ISBN: (数字)0072829192

ISBN: (纸本)0072829192

Course resources included: Online learning center’s premium centent access card; stock-trak portfolio simulation.

关键词： Investments.

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Assessing the Suitability of the WorldClim Dataset for Ecological Studies in Southern Kenya

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journal of Geographic Information System 2018年第6期10卷 643-658页

作者： Tim j. L. Wango Douglas Musiega charles N. Mundia Department of Geomatic Engineering & Geospatial Information Systems Jomo Kenyatta University of Agriculture and Technology Juja Kenya Department of Geomatics and Geospatial Information Systems Dedan Kimathi University Nyeri Kenya

There have been numerous efforts to generate freely available climatic datasets for use in species distribution models, the most popular being the global climatic dataset known as WorldClim. The availability of such datasets is invaluable to scientists as many studies are performed in remote areas where no weather stations are found. However, many users do not critically assess the suitability of these datasets for their applications, and errors associated with global datasets are often assumed to be negligible. Understanding what a climate dataset can or cannot deliver requires the user to have a working knowledge of what the basic spatial climate-forcing factors are at the scale of his/her study, and to have a good understanding of the uncertainty in the dataset. In geographic studies, uncertainty is often described by the degree of error (uncertainty), or degree of accuracy (certainty) in data, and thematic uncertainty refers to the uncertainty in measures made for each variable, whereas temporal uncertainty refers to the uncertainty in time period represented by each variable. Here, we used climatic data from weather stations to investigate the climate-forcing factors in southern Kenya, and then used this weather station data to investigate the uncertainty in the WorldClim dataset. Results indicated that the nineteen core Worldclim variables, known as bioclimatic variables, accurately depicted the local variations in climate in the study area. However, whereas the monthly and seasonal temperature variables represented the same time period in different locations, the same was not true for the monthly and seasonal precipitation variables. The onset of rains is a key biological indicator, and scientists studying phenomena tied to the onset of rains need to keep in mind the temporal variations represented in the WorldClim dataset.

关键词： WorldClim Bioclimatic Variables Thematic Uncertainty Temporal Uncertainty

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Relationship of Secreted Salivary Protein Variants to Virulence in Hessian Fly (<i>Mayetiola destructor</i>(Say))

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Advances in Entomology 2020年第1期8卷 15-33页

作者： Yan M. Crane charles F. Crane Brandon j. Schemerhorn USDA-ARS Crop Production and Pest Control Research Unit West Lafayette IN USA Department of Entomology Purdue University West Lafayette IN USA Department of Botany and Plant Pathology Purdue University West Lafayette IN USA

Salivary proteins are the initial contact between sedentary insect pests and their host plants. It is expected that one or more salivary proteins mediate the interaction between Hessian fly and wheat, in which a feeding site is established to the benefit of the fly. A survey of 52 loci annotated as insect secreted salivary proteins was conducted in 384 individuals evenly distributed among eight biotypes of Hessian fly (B, C, D, E, GP, L, O, and vH9). Amplicons were sequenced with Illumina, and sequence reads were aligned to the reference sequences from which primers had been designed. Positions of consistent base variation (998 in all) were identified and tabulated by biotype. No varying position was associated with biotype-wide virulence to any one of wheat resistance genes H3, H5, H6, H7/H8, H9, H11, H13, and H26. The multiplate pooling strategy utilized in this study is an effective, affordable way to reveal the genotype of hundreds of individuals at tens of genetic loci.

关键词： Hessian Fly Mayetiola destructor Virulence Insect-Plant Interaction Amplicon Sequencing

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Entrepreneurs and newsvendors:do entrepreneurs follow the newsvendor logic when making inventory decisions?（Extended abstract）

Entrepreneurs and newsvendors:do entrepreneurs follow the ne...

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2007 International Conference on Manufacturing & Service Operations Management

作者： charles j.Corbett jan C.Fransoo UCLA Anderson School of Management Technische Universiteit Eindhoven

＜正＞This work empirically assesses the degree to which inventory decisions made by entrepreneurs are informed by the logic underlying the newsvendor model and influenced by the decision-maker’s risk *** employed a web-and email-based survey of some 50 entrepreneurs,combined with telephone follow-up to elicit risk *** findings suggest that entrepreneurs do follow the newsvendor logic,but more so for high- margin than for best-selling *** find that entrepreneurs’ risk profiles are consistent with predictions from prospect *** also find that risk aversion for profits tends to be associated with higher safety stocks,in contradiction to existing theory

关键词： entrepreneurs inventory empirical risk prospect theory.

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Fundamentals of investments Valuation and management

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丛书名： The Irwin/McGraw-Hill series in finance, insurance, and real estate

2000年

作者： charles j.Corrado Bradford D.jordan

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