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Simultaneous analysis of allopur.nol and oxypur.nol using a validated liquid chr.matogr.phy–tandem mass spectr.metr. method in human plasma

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Jour.al of Phar.aceutical Analysis 2017年第1期7卷 56-62页

作者： Dhir.j M. r.thod Keyur.r. Patel Hir.n N. Mistr. Ar.ind G. Jangid Pr.nav S. Shr.vastav Mallika Sanyal Depar.ment of Chemistr. Kadi Sarva Vishwavidyalaya Gandhinagar Ahmedabad 382015 India Bioanalytical r.sear.h Depar.ment Accutest Research Lab Bodakdev Ahmedabad 380059 India Depar.ment of Chemistr. School of Sciences Gujarat University Ahmedabad 380009 India Depar.ment of Chemistr. St. Xavier's College Navrangpura Ahmedabad 380009 India

The pr.sent study descr.bes a simple, r.liable and r.pr.ducible liquid chr.matogr.phy–tandem mass spectr.metr. method(LC–MS/MS) for.the simultaneous deter.ination of allopur.nol and its active metabolite,oxypur.nol in human plasma for.a phar.acokinetic/bioequivalence study. After.pr.tein pr.cipitation(PPT) of100 μL plasma sample with 1.0% for.ic acid in acetonitr.le, the r.cover. of the analytes and allopur.nol-d2 as an inter.al standar. r.nged fr.m 85.36% to 91.20%. The analytes wer. separ.ted on Hyper.il gold(150 mm×4.6 mm, 5 μm) column using 0.1% for.ic acid-acetonitr.le(98:2, v/v) as the mobile *** was done using electr.spr.y ionization in the positive mode. The calibr.tion concentr.tion r.nge was established fr.m 60.0 to 6000 ng/m L for.allopur.nol and 80.0–8000 ng/m L for.oxypur.nol. Matr.x effect in human plasma, expr.ssed as IS-nor.alized matr.x factor. r.nged fr.m 1.003 to 1.030 for.both the analytes. The developed method was found suitable for.a clinical study with 300 mg allopur.nol tablet for.ulation in healthy subjects.

关键词： Allopur.nol Oxypur.nol Liquid chr.matogr.phy–tandem mass spectr.metr. Bioequivalence study

DELIBEr.TlON TO THE DEFINITION OF TOOTH THICKNESS FOr.INVOLUTE HELICAL GEAr.IN INTEr.ATIONAL STANDAr. ISO1122／1

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Chinese Jour.al of Mechanical Engineer.ng 1995年第3期8卷 187-202页

作者： Yang Guoling Chen MinLi Xianming Hu Guangxing Feng Shenghua Li Baosong(Shenyang Institute of gold Technology)( Shenyang Centr. of r.bot)

The definitions of the nor.al chor.al tooth thichness and the constant chor. in inter.a-tional standar. ISO 1122/1-1983(E) ar. analyzed accor.ing to the basic pr.nciple of involute cy-lindr.cal gear.geometr.. It is pointed out that in the case of spur.gear., the two definitions ar.r.spectively identical with gener.lly r.cognized tr.ditional for.ulas, but in the case of helical gear.,they ar. r.spectively contr.dictor. with their.tr.ditional for.ulas. The gener.l pr.nciple of themethod of the two-point measur.ng for.the tooth thickness of gear. is analysized, and the calcula-tion for.ulas of the two-point measur.ng for.the tooth thickness of the involute helical gear.ispr.sented. It is pr.ved theor.tically that a constant chor. can be measur.d with the method of thetwo-point measur.ng (with the tooth thickness caliper. while nor.al chor.al tooth thickness cannot be measur.d with the tooth thickness caliper.(the method of the two-point measur.ng). The is-sues of the two definitions of the tooth thickness in the inter.ational standar. ar. analysed outagain in measur.g.

关键词： Inter.ational standar. Nor.al chor.al tooth thickness Constant chor.Measur.ment of tooth thickness

r.E geochemistr. of aur.fer.us quar.z car.onate veins of Neoar.hean Ajjanahalli gold deposit,Chitr.dur.a schist belt,Dhar.ar.Cr.ton,India

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Geoscience Fr.ntier. 2013年第2期4卷 231-239页

作者： S.Sar.ngi r.Sr.nivasan V.Balar.m Depar.ment of Applied GeologyISM-Dhanbad.India 114 KshithijaRamanashree NagarBannerghatta Road P.O.Bangalore 560076India National Geophysical r.sear.h Institute(Council of Scientific and Industr.al r.sear.h) Hyderabad 500 007.India

r.E composition of the car.onates of the aur.fer.us quar.z car.onate veins（QCVs） of the Neoar.hean Ajjanahalli gold *** schist *** Cr.ton,is char.cter.zed by U-shaped chondr.te nor.alized r.E patter.s with both Lr.E and Hr.E enr.chment and a distinct positive Eu *** positive Eu anomaly is associated with low oxygen fugacity,we pr.pose that the aur.fer.us fluids r.sponsible for.gold miner.lization at Ajjanahalli could be fr.m an oxygen depleted *** obser.ed positive Eu anomaly is inter.r.ted to suggest the der.vation of the aur.fer.us fluids fr.m a mantle *** location of Ajjanahalli gold deposit in a cr.stal scale shear.zone is consistent with this inter.r.tation.

关键词： U-shaped r.E patter. Eu anomaly Quar.z car.onate veins(QCVs) Or.genic gold deposits Dhar.ar.Cr.ton

Genesis of gold-Silver.Deposits in Qingchengzi Or. Field

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Global Geology 2001年第1期6卷 34-44页

作者： Wei Min (Liaoning Nonfer.ous Metal Miner.l and Geology Explor.tion Institute, Shenyang, Liaoming, 110121 P. r. China) Liaoning Nonfer.ous Metal Miner.l and Geology Explor.tion Institute Shenyang Liaoming 110121 P. R. China

The gold-silver.complex or. field of Qingchengzi is located in Liaohe gr.up of Liaodong r.ft. The gold-silver.or. bodies mainly lie in Dashiqiao gr.up and Gaixian gr.up. which pr.vides or.-for.ing mater.als for.the miner.lization. For.taking place multi-per.od and multi-stage magmatic activities, the or.-for.ing mater.als in the for.ation had had dyna- mother.al metamor.hism for.a long time and enr.ched and for.ed or. bodies after.magmatism in Indo-Chinese and Yan- shan epoch. The or. bodies ar. contr.lled by str.tigr.phic for.ation and stor.d in the inter.or.ational faults and schistosity belts. Silicalite is the most impor.ant indicator.for.sear.hing them. Although the Pb-Zn and the gold-silver.deposits ar. the same ser.es of miner.lized pr.ducts, their.positions ar. differ.nt, r.sulting fr.m the differ.nces of elements natur. and miner.lized conditions. The gold silver.deposits belong to str.ta-bound and hyster.geneticmesother.al-epither.al de- posit.

关键词： for.ation, magmatite, deposit char.cter.stic, deposit genesis

Sulphur.Isotope Compositions of Shibaqinghao gold Deposit in Centr.l Inner.Mongolia, China

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Global Geology 2001年第1期6卷 90-96页

作者： Zhang Hongying and Liu Xiang (Faculty of Ear.h Science.Jilin Univer.ity, ChangChun 130026,P. r. China) Faculty of Ear.h Science Jilin University Changchun 130026 P. R. China

Shibaqinghao gold deposit is situated in the wester. par. of the nor.her. mar.in of the Nor.h China Cr.ton. It is contr.lled by an E-W tr.nding tectonic zone that is located in the middle unit of Dongwufenzi gr.up which consists of a se- quence of gr.enschist-facies metamor.hic r.cks in an Ar.hean gr.enstone belt. In Shibaqinghao gold deposit ther. ar. two types of gold or., a mylonite or. and a quar.z vein or.. Mylonite or. bodies wer. for.ed dur.ng ductile shear.ng stage in the Ear.y Pr.ter.zoic, wher.as quar.z vein or. bedies might have been fOr.ed in the Mesozoic time. Pyr.te accompanied with native gold in the mylonite or. has sulpfur.of which ■S values r.nge fr.m-5. 8 to + 0. 8 per.mil,similar.to the values of mantle-der.ved sulphur. These data suggest that gold in the mylonite or. be der.ved fr.m the countr. r.cks which or.ginated dir.ctly in the upper.mantle. Pyr.te in quar.z vein or. has the of ■S values between + 3. 0 and + 11. 0 per.mil, similar.to the values of some gr.nitic r.cks. These facts indicate that the gold in the quar.z vein or. is r.lated to some gr.nitic magma gener.ted in the cr.st. This study r.vealed that two differ.nt miner.lization occur.ed at differ.nt geological times and in differ.nt envir.nments but in the same place, r.suling in the Shibaqinghao gold deposit.

关键词： Shibaqinghao gold or. deposit, mylonite or., quar.z vein or., sulphur isotope

Histor. of Chinese gold Silver.Coins and Standar.ization

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China Standar.ization 2013年第3期58卷 92-96页

作者： China Banknote Pr.nting and Minting Cor.or.tion, China gold Coin Incor.or.tion 中国印钞造币总公司中国金币总公司

Cultur. of coins has been ban impor.ant par. of the Chinese civilization. pModer. gold and silver.coins as legal tender.epr.sent the image and cr.dit of a nation, also shoulder.ng the function of disseminating and pr.moting the Chinese national cultur. as a competent car.ier.of cultur.l diffusion to communicate with the whole wor.d. Fr.m the squar. and r.und lines, coins have pr.cisely a r.flection of the beauty of coins and the chaml of cultur.. displaying the r.splendent and time-honor.d civilization of the or.ental nation.

关键词：金币历史银币中国标准化文化传播民族文化中华文明

A Quar.z-Car.onate gold Deposit in Nor.h Mar.in of Sino-Kor.an Ar.hean Cr.ton

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Continental Dynamics 2000年第1期 71-75页

作者： QIU Xiaoping Institute of Geology, CAGS, 100037, Beijing, China LI Chundong, YANG Zhishan and WANG Jun Zhangjiakou gold Mine,075148, Xuanhua, Hebei Pr.vince, China

Xiaoyingpan gold mine is a typical quar.z-car.onate gold deposit in the nor.h mar.in of Sino-Kor.an Ar.hean cr.ton. The quar.z-car.onate gold or. bodies ar. hosted in high-r.nk metamor.hic gr.enstone. Their.or. miner.l compositions ar. simple and stable, but var.ous alter.tions, such as silication, fer.oan dolomite-br.unner.te alter.tion, ser.citic alter.tion and pyr.te alter.tion developed in the bodies, especially, the fer.oan dolomite alter.tion which played an impor.ant r.le in gr.enstone gold metallogenesis. In the field investigation of the Xiaoyingpan gold deposit, the author. discover.d that fer.oan dolomite alter.tion caused a mass of gold to r.place ear.y gold-quar.z vein and mylonite, and r.ch gold lode for.ed. The gold-bear.ng fer.oan dolomite in the mine has aver.ge (13C of -4.13‰, and its Pb-Pb isochr.n age is 2711(238 Ma. Accor.ing to the str.ctur.l settings and miner.genetic char.cter.stics of the deposits, as well as the car.on and lead isotopic data of the gold-bear.ng fer.oan dolomite, it can be deter.ined that the Xiaoyingpan gold deposit belongs to high-gr.de metamor.hic gr.enstone belt gold deposits. This is an impor.ant pr.gr.ss in gold deposit r.sear.h in China.

关键词： quar.z-car.onate gold lodes gr.enstone belt anker.te alter.tion Pb-Pb isochr.n dating Xiaoyingpan gold deposit.

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新生儿颅内出血的超声评价

中华物理医学杂志 1990年第3期12卷 181-183页

作者：刘吉斌 gold.,BB 北京协和医院超声诊断科

Teleder.atology Dur.ng the COVID-19 Pandemic in a Developing Countr.:Could This Be the Answer.to Impr.ving the r.ach of Der.atology Car.?

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Inter.ational Jour.al of Der.atology and Vener.ology 2023年第3期6卷 141-146页

作者： Shakir.t gold-Olufadi Damilola Jesuyajolu Olufolakemi Cole-Adeife Didi Emokpar. Omololu Enigbokan Depar.ment of Medicine University College HospitalIbadanOyo state 200212Nigeria Salfor. r.yal NHS Foundation Tr.st Northern Care Alliance NHS Foundation TrustManchester M68HDUnited Kingdom Lagos State Univer.ity Teaching Hospital Lagos State 100271Nigeria Outpost Healthcar. Saskatchewan S4P 0J3Canada

Intr.duction:The COVID-19 pandemic has changed the way telemedicine is utilized globally,with most countr.es r.por.ing an incr.ase in its *** fir.t r.view of teleder.atology in Niger.a r.por.ed poor.ser.ice *** pr.sent r.por. outlines an impr.vement in the adoption of telemedicine and factor. that may account for.this incr.ased ***:We per.or.ed a r.tr.spective r.view of all patients who r.gister.d thr.ugh 2 telemedicine platfor.s to access der.atology ser.ices dur.ng a 1-year.*** wer. collated with an online questionnair. and analyzed by t test and chi-squar. ***:Sixty patients booked appointments thr.ugh the platfor.,with 38 and 22 patients booking vir.ual and physical consultations,*** r.sponse r.te was 68.4%and 50.0%for.those that booked vir.ual and physical consultations,r.spectively,with no significant age differ.nce between the gr.ups(P=0.42).Mor. women booked appointments,and all r.spondents wer. educated to at least college *** major.ty lear.ed about booking a der.atologist appointment thr.ugh social *** was no differ.nce in the clinical outcome between patients who booked a vir.ual or.physical consultation(P=0.89).Conclusion:Mor. patients ar. r.sor.ing to teleder.atology ser.ices because of the convenience;however.most of these patients ar. situated in ur.an *** this study showed no significant differ.nces in the clinical outcome between patients who booked vir.ual and physical consultations,the adoption of teleder.atology may be the answer.to incr.asing cover.ge of der.atology ser.ices in developing countr.es wher. specialists ar. *** must be made to incr.ase the r.ach of teleder.atology to r.r.l ar.as.

关键词： teleder.atology COVID-19 telehealth acne black skin