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Nano-Microencapsulation and Controlled Release of Linoleic Acid in Biopolymer Matrices: Effects of the Physical State, Water Activity, and Quercetin on Oxidative Stability

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journal of Encapsulation and Adsorption Sciences 2012年第1期2卷 1-10页

作者： Gilles K. Kouassi Vinod K. Teriveedhi Christopher L. Milby Tarab Ahmad Mark S. Boley Netkal M. Gowda Ronald j. terry Department of Chemistry Western Illinois University Macomb USA Department of Physics Western Illinois University Macomb USA

In this study, linoleic acid (LA) was encapsulated in the presence or absence of quercetin into a dual polymer system of whey protein and kappa-carrageenan using power ultrasound. Atomic Force Microscopy (AFM) and FlowCam imaging technology were used for imaging and size determination of nano-and micro-capsules. Differential scanning calorimeter (DSC) was used to determine the glass transition temperature (Tg) of the freeze-dried nanocapsules. In order to examine the effect of water activity (aw) on the release profile of the encapsulated LA, the nanocapsules were equilibrated over saturated salt solution conditions corresponding to the range of aw between 0.333 and 0.769 in evacuated desiccators at room temperature. Gravimetric measurements of the steady state linoleic acid (LA) contents were conducted. The anti-oxidant activity of quercetin and the stability of encapsulated LA toward long term and thermally induced rancidity was investigated. The capsules were in the nanosize regime and 83% of the LA was effectively encapsulated. Furthermore, at aw of 0.764, the highest percentage of LA (74%) was released from the expelling nanocapsules. Quercetin was found to exhibit protective antioxidant effect against time-dependent oxidation and thermally induced rancidity of LA. Water activity values of 0.662 and 0.764 provided ideal humidity and pressure conditions for sustained release of nanoencapsulated LA at room temperature.

关键词： Nanoencapsulation Microencapsulation kappa-Carrageenan Quercetin Rancidity Antioxidant

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Influence of silane coupling agent on microstructure and properties of CCTO-P(VDF-CTFE)composites

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journal of Advanced Dielectrics 2018年第2期8卷 22-30页

作者： Yang Tong Lin Zhang Patrick Bass terry D.Rolin Z.-Y.Cheng Materials Research and Education Center Auburn University AuburnAL 36849USA Marshall Space Flight Center Huntsville AL 35812USA

Influence of the coupling agent on microstructure and dielectric properties of ceramic-polymer composites is systematically studied using CaCu_(3)Ti_(4)O_(12)(CCTO)as the filler,trichloro-(1H,1H,2H,2H-perfluorooctyl)-silane(Cl_(3)-silane)as coupling agent,and P(VDF-CTFE)88/12 mol.%copolymer as the *** is demonstrated that Cl_(3)-silane molecules can be attached onto CCTO surface using a simple *** experimental results show that coating CCTO with Cl_(3)-silane can improve the microstructure uniformity of the composites due to the good wettability between Cl_(3)-silane and P(VDF-CTFE),which also significantly improves the electric breakdown field of the *** is found that the composites using CCTO coated with 1.0 wt.%Cl_(3)-silane exhibit a higher dielectric constant with a higher electric breakdown *** the composites with 15 vol.%CCTO that is coated with 1.0 wt.%Cl_(3)-silane,an electric breakdown field of more than 240 MV/m is obtained with an energy density of more than 4.5 j/cm^(3).It is also experimentally found that the dielectric constant can be used to easily identify the optimized content of coupling agent.

关键词： Ceramic-polymer energy density CCTO coupling agent breakdown strength

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Fast and Sensitive Chiral Analysis of Amphetamines and Cathinones in Equine Urine and Plasma Using Liquid Chromatography Tandem Mass Spectrometry

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American journal of Analytical Chemistry 2015年第13期6卷 995-1003页

作者： Caroline C. Wang Petra Hartmann-Fischbach Tim R. Krueger Alisha Lester Aaron Simonson terry L. Wells Max O. Wolk Nick j. Hidlay Industrial Laboratories Wheat Ridge USA

A simple, rapid, sensitive and reproducible method for enantiomer analysis of methamphetamine, amphetamine, cathinone and methcathinone was developed and validated. The compounds were extracted from equine plasma and urine using a fast liquid-liquid extraction procedure. Only one milliliter plasma and one hundred microliter urine sample is needed for analysis. The extraction procedure had good recovery (>70%) and the matrix effect was negligible. Enantiomer differentiation and confirmation were achieved using liquid chromatography with chiral stationary phase and mass spectrometry detection. The method demonstrated excellent reproducibility with intra-day and inter-day precision of lower than 5%. The lower limits of detection for all of the compounds studied here were at low pg/mL level for both plasma and urine. This is the first report of the analysis of four chiral compounds in equine plasma and urine. Routine application was demonstrated for (S)- and (R)-enantiomer differentiation.

关键词： Amphetamines and Cathinones Equine Plasma and Urine Chiral Analysis Liquid Chromatography Tandem Mass Spectrometry

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An assessment of racial differences in epidemiological, clinical and psychosocial factors among head and neck cancer patients at the time of surgery

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World journal of Otorhinolaryngology-Head and Neck Surgery 2020年第1期6卷 41-48页

作者： Anvesh Kompelli Kathleen B.Cartmell Katherine R.Sterba Anthony j.Alberg Christopher C.Xiao Amit j.Sood Elizabeth Garrett-Mayer Shai j.White-Gilbertson Steven A.Rosenzweig terry A.Day Department of Otoloryngology-Head and Neck Surgery Medical University of South Carolina(MUSC)CharlestonSC29425USA College of Nursing MUSCCharlestonSC29425USA Hollings Cancer Center MUSCCharlestonSC29425USA Department of Public Health Sciences MUSCCharlestonSC29425USA Cancer Resistry Hollings Cancer CenterMUSCCharlestonSC29425USA Department of Pharmacology MUSCCharlestonSC29425USA

Objective:Racial disparities have been well characterized and African American(AA)patients have 30%lower 5-year survival rates than European Americans(EAs)for head and neck squamous carcinoma(HNSCC).This poorer survival can be attributed to a myriad of different *** purpose of this study was to characterize AA-EA similarities and differences in sociodemographic,lifestyle,clinical,and psychosocial characteristics in HNSCC patients near the time of ***:Setting:Single tertiary care ***:Thirty-nine newly diagnosed,untreated HNSCC patients(n=24 EAs,n=15 AAs)who were to undergo surgery were *** Design:Cross-sectional study Sociodemographic,lifestyle factors,and disease factors(cancer site,AjCC clinical and pathologic stage,and HPV status)were *** factors,leisure time,quality of life and social support were also assessed using validated ***:EA and AA patients were similar in the majority of sociodemographic factors *** had a higher trend toward pathologically later stage disease compared to EAs and significantly increased time to ***:EA and AA patients were similar in the majority of sociodemographic factors *** had a higher trend toward pathologically later stage disease compared to *** also had significantly increased time to treatment(P=0.05).The majority of AA patients(62%)had later stage pathologic *** were less likely to complete high school or college(P=0.01)than their EA ***,AAs were more likely to report having a gap in health insurance during the past decade(37%vs.15%).Conclusions:This preliminary study demonstrates a similar profile of demographics,clinical and psychosocial characteristics preoperatively for AAs and *** differences were AAs tending to have later pathologic stage disease,educational status,delays in treatment initiation,and gaps in health insurance.

关键词： Head and neck cancer Healthcare disparities Treatment delay Health services Quality care HPV

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设计及设备的改变提高了丙烷（C₃）收率

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石油石化节能 2001年第3期17卷 28-32页

作者： Adrian j.Finn terry R.Tomlinson 刘丹姚煦春不详辽河石油工程公司大庆油田设计院

结合欧洲几个不久前建成的NGL回收项目工艺流程设计的选择过程 ,介绍了一种不同于传统膨胀机工艺的“双台膨胀机”工艺 ,它可以非常经济地把丙烷的收率提高到 99%。虽然该流程最初是为欧洲的一个主要NGL回收项目选择的 ,但是其原理却适... 详细信息

结合欧洲几个不久前建成的NGL回收项目工艺流程设计的选择过程 ,介绍了一种不同于传统膨胀机工艺的“双台膨胀机”工艺 ,它可以非常经济地把丙烷的收率提高到 99%。虽然该流程最初是为欧洲的一个主要NGL回收项目选择的 ,但是其原理却适用于任何一个NGL回收项目。使用该流程可以提高丙烷的收率 ,而能耗的增加却很少或不增加 ,这样整体经济效益就获得了提高。

关键词：丙烷收率双台膨胀机 NGL回收方案设计工艺流程

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Model combining pre-transplant tumor biomarkers and tumor size shows more utility in predicting hepatocellular carcinoma recurrence and survival than the BALAD models

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World journal of Gastroenterology 2018年第12期24卷 1321-1331页

作者： Nicha Wongjarupong Gabriela M Negron-Ocasio Roongruedee Chaiteerakij Benyam D Addissie Essa A Mohamed Kristin C Mara William S Harmsen j Paul Theobald Brian E Peters joseph G Balsanek Melissa M Ward Nasra H Giama Sudhakar K Venkatesh Denise M Harnois Michael R Charlton Hiroyuki Yamada Alicia Algeciras-Schimnich Melissa R Snyder terry M Therneau Lewis R Roberts Division of Gastroenterology and Hepatology Mayo ClinicRochesterMN 55905United States University of Puerto Rico Medical Sciences Campus San Juan 00921Puerto Rico Department of Medicine Faculty of MedicineChulalongkorn University and King Chulalongkorn Memorial HospitalThai Red Cross SocietyBangkok 10400Thailand Division of Biomedical Statistics and Informatics Mayo ClinicRochesterMN 55905United States Division of Laboratory Medicine Department of Laboratory Medicine and PathologyMayo Clinic College of MedicineRochesterMN 55905United States Department of Radiology Mayo Clinic College of MedicineRochesterMN 55905United States Department of Transplantation Mayo Clinic FloridaJacksonvilleFL 32224United States Wako Life Sciences IncorporatedMountain ViewCA 94043United States

AIM To assess the performance of BALAD, BALAD-2 and their component biomarkers in predicting outcome of hepatocellular carcinoma(HCC) patients after liver *** BALAD score and BALAD-2 class are derived from bilirubin, albumin, alpha-fetoprotein(AFP), Lens culinaris agglutinin-reactive AFP(AFP-L3), and des-gammacarboxyprothrombin(DCP). Pre-transplant AFP, AFP-L3 and DCP were measured in 113 patients transplanted for HCC from 2000 to 2008. Hazard ratios(HR) for recurrence and death were calculated. Univariate and multivariate regression analyses were conducted. C-statistics were used to compare biomarker-based to predictive models. RESULTS During a median follow-up of 12.2 years, 38 patients recurred and 87 died. The HRs for recurrence in patients with elevated AFP, AFP-L3, and DCP defined by BALAD cut-off values were 2.42(1.18-5.00), 1.86(0.98-3.52), and 2.83(1.42-5.61), respectively. For BALAD, the HRs for recurrence and death per unit increased score were 1.48(1.15-1.91) and 1.59(1.28-1.97). For BALAD-2, the HRs for recurrence and death per unit increased class were 1.45(1.06-1.98) and 1.38(1.09-1.76). For recurrence prediction, the combination of three biomarkers had the highest c-statistic of 0.66 vs. 0.64, 0.61, 0.53, and 0.53 for BALAD, BALAD-2, Milan, and UCSF, respectively. Similarly, for death prediction, the combination of three biomarkers had the highest c-statistic of 0.66 vs 0.65,0.61, 0.52, and 0.50 for BALAD, BALAD-2, Milan, and UCSF. A new model combining biomarkers with tumor size at the time of transplant(S-LAD) demonstrated the highest predictive capability with c-statistics of 0.71 and 0.69 for recurrence and death. CONCLUSION BALAD and BALAD-2 are valid in transplant HCC patients, but less predictive than the three biomarkers in combination or the three biomarkers in combination with maximal tumor diameter(S-LAD).

关键词： alpha-fetoprotein AFP-L3 des-gammacarboxyprothrombin BALAD BALAD-2 Hepatocellular carcinoma Liver transplant Recurrence Outcome

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特里·哈里森的水彩课

特里·哈里森的水彩课

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作者： (英)特里·哈里森(terry Harrison)

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Efficient Orbit Propagation of Orbital Elements Using Modified Chebyshev Picard Iteration Method

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Computer Modeling in Engineering & Sciences 2016年第1期111卷 65-81页

作者： j.L.Read A.Bani Younes j.L.junkins Graduate Research Assistant Texas A&M UniversityCollege StationTXUSA. Assistant Professor Khalifa UniversityAbu DhabiUAE. Distinguished Professor Texas A&M UniversityCollege StationTXUSA.

This paper focuses on propagating perturbed two-body motion using orbital elements combined with a novel integration *** previous studies show that Modified Chebyshev Picard Iteration(MCPI)is a powerful tool used to propagate position and velocity,the present results show that using orbital elements to propagate the state vector reduces the number of MCPI iterations and nodes required,which is especially useful for reducing the computation time when including computationally-intensive calculations such as Spherical Harmonic gravity,and it also converges for>5.5x as many revolutions using a single segment when compared with cartesian *** for the Classical Orbital Elements and the Modified Equinoctial Orbital Elements(the latter provides singularity-free solutions)show that state propagation using these variables is inherently well-suited to the propagation method *** benefits are achieved using a segmentation scheme,while future expansion to the two-point boundary value problem is expected to increase the domain of convergence compared with the cartesian *** is an iterative numerical method used to solve linear and nonlinear,ordinary differential equations(ODEs).It is a fusion of orthogonal Chebyshev function approximation with Picard iteration that approximates a long-arc trajectory at every *** studies have shown that it outperforms the state of the practice numerical integrators of ODEs in a serial computing environment;since MCPI is inherently massively parallelizable,this capability is expected to increase the computational efficiency of the method presented.

关键词： Propagation Integration Orbital Mechanics Classical Elements Modified Equinoctial Chebyshev Picard Iteration MCPI Polynomials Initial Value Problem IVP.

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Infant male circumcision: An evidence-based policy statement

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Open journal of Preventive Medicine 2012年第1期2卷 79-92页

作者： Brian j. Morris Alex D. Wodak Adrian Mindel Leslie Schrieber Karen A. Duggan Anthony Dilley Robin j. Willcourt Michael Lowy David A. Cooper Eugenie R. Lumbers C. terry Russell Stephen R. Leeder School of Medical Sciences and Bosch Institute The University of Sydney Sydney Australia

Here we review the international evidence for benefits and risks of infant male circumcision (MC) and use this to develop an evidence-based policy statement for a developed nation setting, focusing on Australia. Evidence from good quality studies that include meta-analyses and randomized controlled trials showed that MC provides strong protection against: urinary tract infections and, in infancy, renal parenchymal disease;phimosis;paraphimosis;balanoposthitis;foreskin tearing;some heterosexually transmitted infections including HPV, HSV-2, trichomonas, HIV, and genital ulcer disease;thrush;inferior hygiene;penile cancer and possibly prostate cancer. In women, circumcision of the male partner protects against HPV, HSV-2, cervical cancer, bacterial vaginosis, and possibly Chlamydia. MC has no adverse effect on sexual function, sensitivity, penile sensation or satisfaction and may enhance the male sexual experience. Adverse effects are uncommon (<1%), and virtually all are minor and easily treated. For maximum benefits, safety, convenience and cost savings, MC should be performed in infancy and with local anesthesia. A risk-benefit analysis shows benefits exceed risks by a large margin. Over their lifetime up to half of uncircumcised males will suffer a medical condition as a result of retaining their foreskin. The ethics of infant MC and childhood vaccination are comparable. Our analysis finds MC is beneficial, safe and cost-effective, and should optimally be performed in infancy. In the interests of public health and individual wellbeing, adequate parental education, and steps to facilitate access and affordability should be encouraged in developed countries.

关键词： Male Circumcision Public Health Infant Infections Sexually Transmitted Infections Cervical Cancer

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太阳紫外线辐射增加对生物地球化学循环的影响

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人类环境杂志 1995年第3期24卷 180-186页

作者： Richard G.Zepp terry V.Callaghan David j.Erickson 吴持政 United States Environmental Protection Agency Environmental Research Laboratory 960 College Station Road Athens. Georgia 30605-2720 USA University of Manchester Centre of Arctic Ecology Williamson Building Oxford Road Manchester M13 GP1 UK National Center for Atmospheric Research 1850 Table Mesa Drive P. O. Box 3000 Boulder Colorado 80307 USA

太阳的紫外线(UV)辐射增加可影响陆地和水生生态系统的生物地球化学循环,从而改变两者的温室和具化学重要性痕量气体如二氧化碳(CO_2)、一氧化碳(CO)、羰基硫化物(COS)的源和汇。在陆地生态系统中,增加了的UV-B辐射可以修正植物物质的... 详细信息

太阳的紫外线(UV)辐射增加可影响陆地和水生生态系统的生物地球化学循环,从而改变两者的温室和具化学重要性痕量气体如二氧化碳(CO_2)、一氧化碳(CO)、羰基硫化物(COS)的源和汇。在陆地生态系统中,增加了的UV-B辐射可以修正植物物质的生产与分解,并使具大气重要性的痕量气体的吸收和释放产生变化。当UV-B对落叶层表面产生光致降解时,分解过程被加速;当其主要影响包含了活组织的化学组成变化,使被埋落叶的生物降解性降低时,分解过程被延缓。分解过程的这些变化能影响微生物的二氧化碳和其他痕量气体的生产,也会影响植物生长必不可少的养分供应。初级生产力可因增强了的UV-B而下降,但这种作用随物种甚至某些作物的栽培品种不同而异。与此类似,高UV-B辐射对植物物质的CO光致生成的影响也依赖于物种,并有从枯死物质的生成比从有生命物质的生成更有效的现象。对几个不同地区水生生态系统的研究表明,降低现有太阳的UV-B辐射水平可提高初级生产力,而南极臭氧洞下的实验证明增强了的UV-B辐射抑制初级生产。大阳的UV辐射除了对初级生产有影响外还能减慢海洋上层浮游细菌的生长,这可能会对海洋的生物地球化学循环产生重要影响。当细菌的活动受高UV-B辐射的抑制时,分解过程被延缓,而当太阳的UV辐射对水中的溶解有机质(DOM)产生光致降解时,分解过程被加速。DOM的光致降解引起对UV吸收的减弱并生成溶解无机碳(DIC)、CO和有机底层物质,而这些物质容易矿化或被水生微生物吸收。UV-B辐射可以影响海洋的硫循环,并有可能改变海洋向大气的COS和二甲硫(DMS)的散发过程,而这两种气体都能在平流层和对流层中被降解成硫酸盐气溶胶。

关键词：太阳紫外线辐射生物地球化学

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