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World Journal of Gastrointestinal Pathophysiology 2020年第2期11卷 20-31页

作者： Adithya m.Pathanki Joseph A Attard Elizabeth Bradley Sarah Powell-Brett Bobby V m.Dasari John R Isaac keith J Roberts Nikolaos A Chatzizacharias Departm.nt of HPB and Liver Transplantation Queen Elizabeth HospitalUniversity Hospitals BirminghamBirmingham B152THUnited Kingdom Departm.nt of Nutrition and Dietetics Queen Elizabeth HospitalUniversity Hospitals BirminghamBirmingham B152THUnited Kingdom

Pancreaticoduodenectom.(PD)is the com.onest procedure perform.d for pancreatic *** exocrine insufficiency(PEI)m.y be caused or exacerbated by surgery and rem.ins underdiagnosed and *** aim.of this review was to ascertain the incidence of PEI,its consequences and m.nagem.nt in the setting of PD for indications other than chronic pancreatitis.A literature search of databases(m.DLINE,Em.ASE,Cochrane and Scopus)was carried out with the m.SH term.“pancreatic exocrine insufficiency”and“Pancreaticoduodenectom.”.Studies that analysed PEI and its com.lications in the setting of PD for m.lignant and benign disease were *** reporting PEI in the setting of PD for chronic pancreatitis,conference abstracts and reviews were *** incidence of PEI approached 100%following PD in som. *** pre-operative incidence varied depending on the characteristics of the patient cohort and it was higher(46%-93%)in series where pancreatic cancer was the predom.nant indication for *** was also recorded with regards to the m.thod used for the diagnosis and evaluation of pancreatic function and *** enzym. replacem.nt therapy is the m.instay of the *** is com.on and rem.ins undertreated after *** studies are required for the identification of a welltolerated,reliable and reproducible diagnostic test in this setting.

关键词： Pancreatic exocrine insufficiency Pancreaticoduodenectom. Pancreatic enzym. replacem.nt therapy Pancreatic cancer m.labsorption Steatorrhoea

Age, Race and Gender Spatiotem.oral Disparities of COPD Em.rgency Room.Visits in Houston, Texas

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Occupational Diseases and Environm.ntal m.dicine 2015年第1期3卷 1-9页

作者： Faye Anderson Arch Carson Lawrence Whitehead keith Burau Texas A & m.AgriLIFE Research Center Beaumont Texas USA

Chronic obstructive pulm.nary disease (COPD) is one of the m.jor causes of m.rbidity and m.rtality in the United State. The investigation of the continuing increase in its prevalence and m.rtality has increased attem.ts to further understand its causes and how to m.nage it. Understanding the spatial and tem.oral distribution of COPD em.rgency room.(ER) visits in Harris County (Houston) can guide these efforts in a uniform.yet diverse setting like this one. The objectives of this study were to identify the tem.oral and spatial variations of COPD em.rgency room.visits adjusted by age, gender, ethnicity, day of the week, m.nth, and year, and to estim.te the odds ratio of COPD em.rgency room.visits adjusted by the six risk factors. The dataset used were extracted from.two resources: ER Utilization Study and Harris County centroid coordinates. Exploratory statistical analyses were conducted to study the spatiotem.oral disparities and investigate associations. Logistic regression was perform.d to estim.te the odds ratio of COPD prim.ry diagnosis adjusted for age, race, gender, day of the week, m.nth, and year. The num.er of COPD ER visits kept increasing from.2004 throughout 2009 but there was a significant increase after the year 2005. Spring and sum.er had lower visits com.ared to winter and autum.. Lowest visits were during June and July and higher during Decem.er and January. Tuesdays had the highest num.er of visits com.ared to the rem.ining days of the week with Saturdays having had the lowest num.er of visits. Tem.oral analyses show the continuous increase in COPD ER visits in Houston as well as the consistent spatial disparities between zip regions. After adjustm.nt for age, race, gender, day of the week, m.nth, and year, there were statistically significant associations between em.rgency room.chronic obstructive pulm.nary disease diagnoses in Houston, Texas, with these six predictors.

关键词： COPD Houston Texas Ozone Particulate m.tter Logistic Regression

Spatiotem.oral Analysis of the Effect of Ozone and Fine Particulate on CVD Em.rgency Room.Visits in Harris County, Texas

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Open Journal of Air Pollution 2014年第4期3卷 87-99页

作者： Faye Anderson Arch Carson Lawrence Whitehead keith Burau Texas A & m.AgriLIFE Research Center at Beaum.nt Texas USA

Researchers have reported statistically significant associations between air pollutants and cardiovascular disease (CVD). However, few studies have investigated the acute cardiovascular effects of joint exposure to Ozone (O3) and fine particulate m.tter (Pm..5) in a location so distinctive like Harris County. The objective of this study was to investigate the association between the joint exposure to O3 and Pm..5, and em.rgency room.diagnosis of CVD, in Harris County, Texas. Data used include all em.rgency room.(ER) visits, and O3 and Pm..5 levels in the sam. years. Logistic regression m.deled the effect of tem.erature, relative hum.dity, wind speed, wind, ozone, and fine particulate m.tter, averaged by day. Three m.dels were estim.ted for all visits, visits during the m.nths of April and Septem.er of 2005 and 2009, and for visits for patients from.zip codes that are close to m.nitoring stations. A 1 μg/m. increase in Pm..5 was associated with a 0.4% increase in the odds of cardiovascular disease em.rgency room.diagnoses on the sam. day

关键词： Cardiovascular Disease Air Pollution Em.rgency Harris County Ozone Particulate Pollution

Com.unicate 1 : : teacher's book ; English for social interaction /

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Robust reduction of graphene fluoride using an electrostatically biased scanning probe

1979年

作者： Johnson keith.

来源：畅想之星图书光盘版（南... 评论

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Nano Research 2013年第11期6卷 767-774页

作者： Woo-Kyung Lee Stanislav Tsoi keith E. Whitener Rory Stine Jerem. T. Robinson Jonathon S. Tobin Asanka Weerasinghe Paul E. Sheehan Sergei F. Lyuksyutov Division of Chem.stry US Naval Research Laboratory Washington DC20375 USA NOVA Research Alexandria Virginia 22308 USA Division of Electronic Science and Technology US Naval Research Laboratory Washington DC 20375 USA The University of Akron Department of Physics Akron OH 44325 USA

We report a novel and easily accessible m.thod to chem.cally reduce graphene fluoride （GF） sheets with nanoscopic precision using high electrostatic fields generated between an atom.c force m.croscope （AFm. tip and the GF substrate. Reduction of fluorine by the electric field produces graphene nanoribbons （GNR） with a width of 105-1,800 nm.with sheet resistivity drastically decreased from.〉1 TΩ.sq.^-1 （GF） down to 46 kΩ.sq.^-1 （GNR）. Fluorine reduction also changes the topography, friction, and work function of the GF. Kelvin probe force m.croscopy m.asurem.nts indicate that the work function of GF is 180-280 m.V greater than that of graphene. The reduction process was optim.zed by varying the AFm.probe velocity between 1.2 μm.s^-1 and 12 μm.s^-1 and the bias voltage applied to the sam.le between -8 and -12 V. The electrostatic field required to rem.ve fluorine from.carbon is -1.6 ***-1. Reduction of the fluorine m.y be due to the softening of the C-F bond in this intense field or to the accum.lation and hydrolysis of adventitious water into a m.niscus.

关键词： graphene fluoride graphene electrostatic lithography Kelvin force probem.croscopy atom.c force m.croscopy-based electrostaticnanolithography(AFm.N)

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似非而是的戒律

新东方英语 2004年第5M期 106-107页

作者： Dr.Kent m.keith

假如人们过一种似非而是的生活,更关注人生的意义,而非赞誉和掌声,这个世界将会更加理智。

关键词：《似非而是的戒律》英语汉语文学翻译

Unsteady boundary layers on flapping wings

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Unsteady boundary layers on flapping wings

用PTV和(或)无分流进样的薄层毛细管GC分析三文鱼和菠菜中PCDD/Fs的HRGC-HRm.方法优化

23rd International Congress of Theoretical and Applied m.chanics

作者： Dm.try Kolom.nskiy keith m.ffatt m.rie Farge Kai Schneider Centre Europeen de Recherche et de Form.tion Avancée en Calcul Scientifique ToulouseFrance Departm.nt of Applied m.them.tics and Theoretical Physics University of CambridgeCambridgeUK Lm.-IPSL-CNRS Ecole Normale SupérieureParisFrance m.P2-CNRS and Cm Aix-Marseille UniversitéMarseilleFrance

＜正＞Flow near the trailing edges of insect wings during the high Reynolds num.er clap-fling-sweep process is related to unsteady stagnation-point *** solutions to this problem.are *** are exact solutions of the Navi...

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环境化学 2006年第6期25卷 805-808页

作者： keith Worrall Clive Robinson David Wood Paul Harrington m.crom.ss UK Ltd. WythenshaweMachesterUK S.A.L.Lim.ted Medlock HouseNew Elm RoadMachesterUK S.A.L.Lim.ted

降低二噁英(PCDD/Fs)的检出限(LOD)可以更好地估计这类有毒化合物在食品中的含量.通常的分析方法用无分流进样注入内径0.25 m.长60m.色谱柱.

关键词：无分流进样 PCDD/Fs GC分析 S方法三文鱼毛细管 PTV 优化

JnCm.-like, an EF-hand m.tif-containing gene seasonally upregulated in the transition zone of black walnut (Juglans nigraL.)

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Am.rican Journal of m.lecular Biology 2011年第3期1卷 140-155页

作者： Zhonglian Huang Priyanka Surana Daisuke Kihara Richard m.ilan keith Woeste 不详

The econom.c value of a black walnut (Juglans nigra L.) tree is strongly determ.ned by the quality and quantity of darkly colored heartwood in its stem. To understand the regulation of heartwood form.tion, we analyzed the region of heartwood form.tion in walnut stem. (i.e., the transition zone, TZ) for the expression of 80 ESTs. Sem.-quantitative RT-PCR and real-tim. PCR was perform.d to detect expression changes of candidate genes in the TZ and sapwood of trees harvested in sum.er and fall. Results revealed that the transcript of a clone containing two presum.d EF-hand m.tifs was expressed at higher levels in the TZ than in other xylem.tissues. Analysis of the full-length coding sequence revealed that the black walnut gene JnCm.-like is sim.lar to grancalcin-like calcium.binding EF hand proteins in Arabidopsis thaliana (At3g10300) and Zea m.ys (Nm.001153810). A m.del of the predicted structure of JnCm.-like showed it is sim.lar to grancalcin and m.calpain, penta-EF-hand fam.ly proteins associated with cell proliferation, differentiation and program.ed cell death. JnCm.-like transcript was detected in tissue from.the region of the pith m.ristem. and in roots, em.ryogenic callus, vascular cam.ium. fem.le flowers, m.le flowers, green leaves, and partially and fully senescent leaves of black walnut, although transcript abundance varied considerably am.ng these tissues.

关键词： Transition Zone m.Calpain Juglans Nigra Grancalcin