thomas and patnaik-serial correlation in high-frequency data and the link with liquidity

... Andersen and Bollerslev (1997) of ignoring the first return in the day, and then concatenating the data. Trading intensity NSE has one of the highest trading intensities in the world. In this period ... arises when analysing the serial correlations in the data are the U-shaped patterns in volumes and volatility. It is observed that returns in the beginning and the end of the tradingday tend to ... analyse the heterogeniety in serial correlations in terms of heterogeneity of liquidity and find there is substantial evidence of a link between the serial correlation and the liquidity in stock...

... Afonin VB and Kakurin VJ. Potassium measurements during hypokinesia and ambulation in establishing potassium changes in trained and untrained subjects. Sports Medicine Training and Rehabilitation, ... (p<0.05) with time, and PA levels, plasma, fecal and urinary K+ levels increased significantly (p<0.05) with time in UHKR and SHKR compared with their pre-HK values and the values in their ... duplicate of the consumed food of each rat and the total K+ loss in 24 h urine and fecal samples were measured. Measuring K+ absorption [(intake-losses)/intake], with and without Int. J. Med....

... 19thepopulation.Thenumberofwomensherepresentsinthepopulationiscalledher‘‘samplingweight.’’Samplingweightsmayvaryconsiderablyfromthisaveragevaluedependingontherespondent’srace,theresponserateforsimilarwomen,andotherfactors.Aswithanysamplesurvey,theestimatesinthisreportaresubjecttosamplingvariability.SignificancetestsonNSFGdatashouldbedonetakingthesamplingdesignintoaccount.Nonsamplingerrorswereminimizedbystringentquality-controlproceduresthatincludedthoroughinterviewertraining,checkingtheconsistencyofanswersduringandaftertheinterview,imputingmissingdata,andadjustingthesamplingweightsfornonresponseandundercoveragetomatchnationaltotals.Estimatesofsamplingerrorsandotherstatisticalaspectsofthesurveyaredescribedinmoredetailinanotherseparatereport(13).Thisreportshowsfindingsbycharacteristicsofthewomaninterviewed,includingherage,maritalstatus,education,parity,householdincomedividedbythepovertylevel,andraceandHispanicorigin.IthasbeenshownthatblackandHispanicwomenhavemarkedlylowerlevelsofincome,education ,and accesstohealthcareandhealthinsurance,thanwhitewomen(14).Theseandotherfactors,ratherthanraceororiginperse,probablyaccountfordifferencesinthebehaviorsandoutcomesstudiedinthisreportamongwhite,black,andHispanicwomen(15).TableBshowsafactorthatshouldbeconsideredininterpretingtrendsinpregnancy-relatedbehaviorintheUnitedStates:thechangingagecompositionofthereproductive-agepopulation .In 1982,therewere54.1millionwomenofreproductiveageintheUnitedStates ;in 1988,57.9million;andin1995,60.2million(16).Thelargebabyboomcohort,bornbetween194 6and1 964,was18–34yearsofagein1982,24–42yearsofagein1988 ,and3 1–49yearsofagein1995.Theselargebirthcohortswerepreceded(upto1945 )and followed(1965–80)bysmallercohorts.Whiletheoverallnumberofwomen15–44yearsofageroseby6million,or11percentbetween198 2and1 995 ,the numberofteenagewomendroppedbyabout6percent,thenumberofwomen20–24yearsofagedroppedby15percent,andthenumberofwomen25–29droppedby6percent(tableB) .In contrast,thenumberofwomen30–44yearsofageincreasedsharply—forexample,thenumberofwomen40–44yearsofageincreasedby59percentbetween198 2and1 995.Also,women30–44yearsofageaccountedfor54percentofwomen15–44yearsofage in1 995comparedwith44percentin1982.Thesedifferencesinagecompositionmayberelevantwhenevertimetrendsamongwomen15–44yearsofagearebeingdiscussed.Publicusefilesbasedonthe1995NSFGareavailableoncomputertape.TheywillalsobeavailableonCompactDiscRead-OnlyMemory(CD-ROM).QuestionsaboutthecostandavailabilityofthecomputertapesshouldbedirectedtotheNationalTechnicalInformationService(NTIS),5285PortRoyalRoad,Springfield,VA22161,703–487-4650,or1–800-553-NTIS.QuestionsregardingtheCD-ROMfilesshouldbedirectedtoNCHS’DataDisseminationBranchat301–436-8500.ResultsTables1–17containmeasuresofpregnancyandbirthintheUnitedStates.ChildrenEverBornandTotalBirthsExpected In1 995,women15–44yearsofageintheUnitedStateshadhadanaverageof1.2birthsperwoman(table1).Thiscompareswith1. 2in 198 8and1 . 3in1 982(17) .In1 995,women15–44yearsofageexpectedtofinishtheirchildbearingwithanaverageof2.2childrenperwoman(table1)comparedwith2. 2in1 988 and2 . 4in1 982(17).Theproportionwhoreportthattheyhaveneverbeenpregnantwasmarkedlyhigherforcollegegraduatesthanforthosewhodidnotcompletehighschool(table3).Thissamepatternbyeducationisalsoseenwhendataforlivebirthsareexamined(tables4–5):about49percentofwomen22–44yearsofagewhohadgraduatedfromcollegehadhadnolivebirthsasofthedateofinterviewcomparedwithjust8percentofwomen22–44yearsofagewithoutahighschooldiploma(table4).WithinraceandHispanicorigingroups,thepatternwasthesame:collegegraduateshadmarkedlyhigherpercentschildlessthanwomenwithlesseducation(table5).Table6showsacomparisonbetweenlivebirthsreportedintheNSFGandlivebirthsregisteredonbirthcertificatesintheyears1991–94 .In eachindividualcalendaryearandforthesumoftheyears1991–94 ,the NSFGestimateofthenumberofbirthsisveryclosetothebirthcertificatetotalanddiffersfromitbylessthantheNSFG’ssamplingerror.TheNSFGestimateisalsoverycloseforwhitewomen.TheNSFGestimateforblackwomenisslightlylower,andtheestimateforotherracessomewhathigherthanthebirthcertificatedata.Adiscussionofthisdifferenceisgiveninthedefinitionof‘‘RaceandHispanicorigin’’inthe‘‘DefinitionsofTerms.’’Overall,andbycharacteristicsotherthanrace,however,table6showsthatTableB.Numberofwomen,byage:UnitedStates,1982,1988 ,and1 995Age¬ ... 19nonvoluntaryintercourse.Onesetofquestionswasintheinterviewer-administeredportionofthesurveyandthesecondwasintheself-administeredportion(AudioCASI).Intheinterviewer-administeredseries,theywereaskedwhethertheirfirstintercoursewas‘‘voluntaryornotvoluntary.’’Forabout8percentofwomen15–44yearsofagewhohavehadintercourse,theirfirstintercoursewasnotvoluntary(table21).Forthosewhosefirstintercourseoccurredatage15oryounger,thatfirstintercoursewasnonvoluntaryfor16percentcompared with7 percentorlessforthosewhosefirstintercourseoccurredatage16orolder.Thepercentwhosefirstintercoursewasnonvoluntaryisnearly10percentamongwomenwhosefirstintercoursewasbefore1975comparedwithabout6percentamongwomenwhofirsthadintercourseinthe1990’s(table21).Intheself-administered(AudioCASI)portionoftheinterview,womenwereaskedarelatedbutdifferentquestion:whethertheyhadeverbeenforcedbyamantohavesexualintercourseagainsttheirwill.About20percentofwomenreportedthattheyhadbeenforcedbyamantohaveintercourseagainsttheirwillatsometimeintheirlives(table22).Thus,table21showsthatfor8percentofwomen,theirfirstintercoursewasnonvoluntary;table22showsthat20percenthadhadnonvoluntaryintercourseatsometime—notnecessarilyatfirstintercourse.Table22alsoshowsthat6percentofwomenreportedthattheywereforcedtohaveintercoursebeforetheywere1 5and another6percentbeforetheywere18.Afairlyhighpercentofformerlymarried(divorcedorseparated)women—about35percent—reportedthattheyhadbeenforcedtohaveintercourse.Thisfindingdeservesfurtherstudy.FirstSexualPartnerTherehasbeenmuchpublicdiscussionaboutthepartnersofsexuallyactiveteenagers.Table23profilestheageofmalepartnersatwomen’sfirstvoluntaryintercourse.Abouttwo-thirds(66percent)ofwomenwhohadtheirfirstvoluntaryintercoursebeforetheywere16hadfirstpartnerswhowereunder18yearsofage;21percenthadfirstpartners18–19yearsofage;7percenthadfirstpartners20–22yearsofage,2percenthadfirstpartners23–24yearsofage ,and4 percenthadfirstpartners25yearsofageorolder(table23).Only3percentofwomenhadtheirfirstintercoursewithamantheyjustmet.About3outof5women(61percent)were‘‘goingsteady’’or‘‘goingtogether’’withthemantheyhadintercoursewiththefirsttime,andabout 1in5 wereengagedormarriedtohim.About12percentofallwomenweremarriedwhentheyhadtheirfirstintercourse.Amongwomen40–44yearsofage(bornin1951–55),23percentweremarriedtotheirpartneratfirstintercoursewhileabout2percentofwomen15–19yearsofage(born1971–75)weremarriedtotheirfirstpartner.Womenwholivedwithbothoftheirparentsthroughouttheirchildhoodweremorelikelythanotherwomentohavebeenmarriedtotheirpartneratfirstintercourse(table24).FirstIntercourseRelativetoFirstMarriageAmongever-marriedwomen15–44yearsofage,82percenthadfirstintercoursebeforetheyweremarried.About69percentofthosefirstmarried in1 965–74hadtheirfirstintercoursebeforemarriagecomparedwith89percentofthosefirstmarriedinthe1990’s.Only2percentofthosefirstmarriedin1965–74hadtheirfirstintercourse5yearsormorebeforemarriagecomparedwith56percentofthosefirstmarriedinthe1990’s(table25).NumberofSexualPartnersAsmentionedpreviously,somequestionsonabortion,sexualpartners,andforcedsexualintercoursewereaskedinboththeinterviewer-administeredandtheself-administered(AudioCASI)portionsoftheinterview.Responsestosensitivequestionsappeartohavebeenaffectedbythecomputerself-administeredmodeofinterviewing.Tables26–31showdataonthenumberofsexualpartnersinthelast1year,5years,andlifetime,usingboththeinterviewer-administeredandself-administeredmethods.Presentingdatabasedonbothmodesofinterviewingallowstheexaminationofdifferencesinreportingduetothemodeofinterviewing(table26versus27,table28versus29,andtable30versus31);andtheselectionoffindingsmostappropriateforcomparisontoothersurveys.About3percentofunmarriedwomentoldtheinterviewerthattheyhadhadfourormoremalesexualpartnersinthelast12months(table26),comparedwith9percentreportingfourormorepartnersinAudioCASI(table27).AsimilardisparitywasfoundwhencomparingtheinterviewerresultswithAudioCASIresultsforthenumberofpartnerssinceJanuary1991(alittlelessthan5years,onaverage).Amongunmarriedwomen,14percenttoldtheinterviewertheyhadfourormoremalesexualpartnerssinceJanuary1991(table28)while18percentreportedinAudioCASIthattheyhadhadfourormorepartnersinthattime(table29).Thistopicdeservesmoredetailedstudy,butitappearsthatusingthemoreprivateinterviewtechniquegaveahigherandpresumablymorecompleteestimateofthenumberofpartnersamongunmarriedwomen(8,11).MarriageandCohabitationTables32–37show1995dataonformalmarriageandunmarriedcohabitation.About38percentofwomen15–44yearsofagehadneverbeenmarriedwheninterviewedin1995(table32).Thepercentnevermarriedwashigherineveryagegroupin1995thanitwasin1982(24).Abouthalfofwomen25–39yearsofagehavehadanunmarriedcohabitationwithamanatsometimeintheirlives;10to11percentofwomenintheirtwentiesarecurrentlycohabitingwithaman(table33).About30percentofwomen25–39yearsofagelivedwithaman(cohabited)beforetheirfirstmarriage(table34).Overone-half(57percent)ofSeries23,No.19[Page5all ... 19nonvoluntaryintercourse.Onesetofquestionswasintheinterviewer-administeredportionofthesurveyandthesecondwasintheself-administeredportion(AudioCASI).Intheinterviewer-administeredseries,theywereaskedwhethertheirfirstintercoursewas‘‘voluntaryornotvoluntary.’’Forabout8percentofwomen15–44yearsofagewhohavehadintercourse,theirfirstintercoursewasnotvoluntary(table21).Forthosewhosefirstintercourseoccurredatage15oryounger,thatfirstintercoursewasnonvoluntaryfor16percentcompared with7 percentorlessforthosewhosefirstintercourseoccurredatage16orolder.Thepercentwhosefirstintercoursewasnonvoluntaryisnearly10percentamongwomenwhosefirstintercoursewasbefore1975comparedwithabout6percentamongwomenwhofirsthadintercourseinthe1990’s(table21).Intheself-administered(AudioCASI)portionoftheinterview,womenwereaskedarelatedbutdifferentquestion:whethertheyhadeverbeenforcedbyamantohavesexualintercourseagainsttheirwill.About20percentofwomenreportedthattheyhadbeenforcedbyamantohaveintercourseagainsttheirwillatsometimeintheirlives(table22).Thus,table21showsthatfor8percentofwomen,theirfirstintercoursewasnonvoluntary;table22showsthat20percenthadhadnonvoluntaryintercourseatsometime—notnecessarilyatfirstintercourse.Table22alsoshowsthat6percentofwomenreportedthattheywereforcedtohaveintercoursebeforetheywere1 5and another6percentbeforetheywere18.Afairlyhighpercentofformerlymarried(divorcedorseparated)women—about35percent—reportedthattheyhadbeenforcedtohaveintercourse.Thisfindingdeservesfurtherstudy.FirstSexualPartnerTherehasbeenmuchpublicdiscussionaboutthepartnersofsexuallyactiveteenagers.Table23profilestheageofmalepartnersatwomen’sfirstvoluntaryintercourse.Abouttwo-thirds(66percent)ofwomenwhohadtheirfirstvoluntaryintercoursebeforetheywere16hadfirstpartnerswhowereunder18yearsofage;21percenthadfirstpartners18–19yearsofage;7percenthadfirstpartners20–22yearsofage,2percenthadfirstpartners23–24yearsofage ,and4 percenthadfirstpartners25yearsofageorolder(table23).Only3percentofwomenhadtheirfirstintercoursewithamantheyjustmet.About3outof5women(61percent)were‘‘goingsteady’’or‘‘goingtogether’’withthemantheyhadintercoursewiththefirsttime,andabout 1in5 wereengagedormarriedtohim.About12percentofallwomenweremarriedwhentheyhadtheirfirstintercourse.Amongwomen40–44yearsofage(bornin1951–55),23percentweremarriedtotheirpartneratfirstintercoursewhileabout2percentofwomen15–19yearsofage(born1971–75)weremarriedtotheirfirstpartner.Womenwholivedwithbothoftheirparentsthroughouttheirchildhoodweremorelikelythanotherwomentohavebeenmarriedtotheirpartneratfirstintercourse(table24).FirstIntercourseRelativetoFirstMarriageAmongever-marriedwomen15–44yearsofage,82percenthadfirstintercoursebeforetheyweremarried.About69percentofthosefirstmarried in1 965–74hadtheirfirstintercoursebeforemarriagecomparedwith89percentofthosefirstmarriedinthe1990’s.Only2percentofthosefirstmarriedin1965–74hadtheirfirstintercourse5yearsormorebeforemarriagecomparedwith56percentofthosefirstmarriedinthe1990’s(table25).NumberofSexualPartnersAsmentionedpreviously,somequestionsonabortion,sexualpartners,andforcedsexualintercoursewereaskedinboththeinterviewer-administeredandtheself-administered(AudioCASI)portionsoftheinterview.Responsestosensitivequestionsappeartohavebeenaffectedbythecomputerself-administeredmodeofinterviewing.Tables26–31showdataonthenumberofsexualpartnersinthelast1year,5years,andlifetime,usingboththeinterviewer-administeredandself-administeredmethods.Presentingdatabasedonbothmodesofinterviewingallowstheexaminationofdifferencesinreportingduetothemodeofinterviewing(table26versus27,table28versus29,andtable30versus31);andtheselectionoffindingsmostappropriateforcomparisontoothersurveys.About3percentofunmarriedwomentoldtheinterviewerthattheyhadhadfourormoremalesexualpartnersinthelast12months(table26),comparedwith9percentreportingfourormorepartnersinAudioCASI(table27).AsimilardisparitywasfoundwhencomparingtheinterviewerresultswithAudioCASIresultsforthenumberofpartnerssinceJanuary1991(alittlelessthan5years,onaverage).Amongunmarriedwomen,14percenttoldtheinterviewertheyhadfourormoremalesexualpartnerssinceJanuary1991(table28)while18percentreportedinAudioCASIthattheyhadhadfourormorepartnersinthattime(table29).Thistopicdeservesmoredetailedstudy,butitappearsthatusingthemoreprivateinterviewtechniquegaveahigherandpresumablymorecompleteestimateofthenumberofpartnersamongunmarriedwomen(8,11).MarriageandCohabitationTables32–37show1995dataonformalmarriageandunmarriedcohabitation.About38percentofwomen15–44yearsofagehadneverbeenmarriedwheninterviewedin1995(table32).Thepercentnevermarriedwashigherineveryagegroupin1995thanitwasin1982(24).Abouthalfofwomen25–39yearsofagehavehadanunmarriedcohabitationwithamanatsometimeintheirlives;10to11percentofwomenintheirtwentiesarecurrentlycohabitingwithaman(table33).About30percentofwomen25–39yearsofagelivedwithaman(cohabited)beforetheirfirstmarriage(table34).Overone-half(57percent)ofSeries23,No.19[Page5all...

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... ser-vices, and the quality and range of available servicesare improving (2).Growth in the size and influence of civil society in Brazil since the 1980s has facilitated the positivechange. Increasingly ... assist in the assessment of existing capacity for thesefunctions and to help in strengthening such capacitywhen necessary (7).Continue building on the important role ofNGOs. Changes in financing ... wasglobally adopted in 1994 at the ICPD in Cairo (8) and reaffirmed and strengthened at the FWCW in Beijing in 1995 (9), articulates a critical shift of focus in health and population policies and programmes...

... Issues and Solutions in Exploration, Production and Refining, Albuquerque, NM: Integrated Petroleum Environmental Consortium (IPEC) and the University of Tulsa, Continuing Engineering and Science ... Issues and Solutions in Exploration, Production and Refining, Albuquerque, NM: Integrated Petroleum Environmental Consortium (IPEC) and the University of Tulsa, Continuing Engineering and Science ... disposal in poorly maintained injection wells, and simply running the water over the ground. Impacts of these past practices are apparent in salt scars, dead trees and other vegetation, contamination...

... reform, and reduction of the rates of postage, there are not one thousandconsiderate and reflecting people, in the Union, who desire or demand anything of the kind. The commercial and mercantile ... as they were in Great Britain before the adoption of cheap postage. But on the other hand, the state of things in this country affords much greater facilities for that business, and renders their ... of the department for the year ending June 30, 1843, exceeded its income by the sum of $78,788. The decline of its revenue during that year was $250,321; and the investigations made into the...

... size, and changing coverage. Extrapolation is transferring information from smaller to larger extents, coarse-graining transferring information with increasing grain size, and fine-graining transferring ... coarse-graining, fine-graining, or scaling in general. The fourth usage makes sense with regard to the literal meaning of the word, but it does not fit the definition of scaling because scaling has ... analysis and modeling in terms of grain size and extent directly influences whether or not the intrinsic pattern and scale of a phenomenon can be eventually revealed in the final analysis. The significance...

... roles in the induction ofmitochondria-mediated apoptosis and the inhibition of invasion, along with the downregulation of matrix metalloproteinase expression. In addition, byusing the calcium indicator ... inhibited the effects of OccWT. Therefore, the increase in intracellular calcium may explain the induction of apoptosis and reduction of invasive-ness mediated by occludin. In previous reports,intracellular ... occludin stained with antibodies to occludin in Chang, Hep3B and Huh7 cells transfected with pCMV ⁄ HA. Redfluorescence indicates exogenous occludin stained with antibodiesto HA in Chang, Hep3B and...

... tachykinins, the hemokinins, were identified ona third precursor encoding gene, preprotachykinin C,expressed in hematopoietic cells of mouse, rat and humans [6,7]. In invertebrates the tachykinins ... 2005)doi:10.1111/j.1742-4658.2005.04752.xTachykinins and tachykinin-related peptides (TKRPs) play major roles in signaling in the nervous system and intestine of both invertebrates and ver-tebrates. Here we have identified cDNAs encoding ... efficacy in processing of twoN-terminally extended TKRPs in the brain and intes-tine, respectively. This could result in the gut-specificaccumulation of such peptides, whereas in the braincleavage...