In order to improve the hemostatic effectiveness of ethamsylate in treatment ofupper gastrointestinal hemorrhage,we had developed a new type of hemostatic drug-oral and magnetically controlled ethamsylate microspheres...In order to improve the hemostatic effectiveness of ethamsylate in treatment ofupper gastrointestinal hemorrhage,we had developed a new type of hemostatic drug-oral and magnetically controlled ethamsylate microspheres (abbreviation:the etham-sylate microspheres) and tested their parameters associated with physical and chemi-cal respects.Its main characteristics that we found were: 1】 The ethamsylate mi-展开更多
WHAT IS BIOTECHNOLOGYIn the earlier time,biotechnologymainly meant microbiologic fermention.Since 1970‘s,as gene engineering,cytolog-ical engineering and enzyme technologydeveloped,the technology of using organ-ism f...WHAT IS BIOTECHNOLOGYIn the earlier time,biotechnologymainly meant microbiologic fermention.Since 1970‘s,as gene engineering,cytolog-ical engineering and enzyme technologydeveloped,the technology of using organ-ism functions became the basic intension ofbiotechnology.Biotechnology can be de-fined as an area of applied bioscience andtechnology,which is based on the theoriesof biology(microbiology,genetics,biochemistry,cytology,molecular biology),展开更多
Here reported the ester exchange of DIPP-His with primaryalcohols and found that the rate of this reaction was increased asthe increment of the carbon chain of alcohols used.
The methods of in vitro and in vivo-in vitro combinationassay for autoradiographic detection of unscheduled DNAsynthesis(UDS)induced by chemical carcinogens wasestablished.To estimate the reliability of these assays,U...The methods of in vitro and in vivo-in vitro combinationassay for autoradiographic detection of unscheduled DNAsynthesis(UDS)induced by chemical carcinogens wasestablished.To estimate the reliability of these assays,UDS in tissues slices was measured with the establishedmethods after exposure to MNNG and dimethylnitrosamine(DMN)in vitro or in vivo respectively.To study thesusceptibility of various tissues to chemicals,UDS展开更多
All 15 members of the UN Security Council endorsed on December 3 a full-scale military operation led by the United States to make sure aid meant for millions of starving Somalis is not looted by rampaging gangs. On De...All 15 members of the UN Security Council endorsed on December 3 a full-scale military operation led by the United States to make sure aid meant for millions of starving Somalis is not looted by rampaging gangs. On December 9, hundreds of US Marines stormed Mogadishu in a bloodlessly staged strike and took over the harbour and airport.展开更多
Friends call Cao Yingbin by his nickname ’Cao er’ (Little Cao), and I always thought they meant ’Little Manger’ (also pronounced ’Cao er’ in Chinese). The
From my second year of primary school on,there was oneevent I dreaded every year:the piano recital.A recital meant I hadto practice a boring piece of music and perform in front of strangerswho,I was sure,knew the note...From my second year of primary school on,there was oneevent I dreaded every year:the piano recital.A recital meant I hadto practice a boring piece of music and perform in front of strangerswho,I was sure,knew the notes much better than I.It also meantwearing a crinkly crinoline dress and enduring the bright lights ofa movie camera as I swished across the church stage.展开更多
Recently my college-age daughter said,“I hate modem classi-cal music.It always sounds so angry.”I had never thought of modern music that way,but as soon asshe said it,I knew what she meant.I’ve often criticized rap...Recently my college-age daughter said,“I hate modem classi-cal music.It always sounds so angry.”I had never thought of modern music that way,but as soon asshe said it,I knew what she meant.I’ve often criticized rap forthat reason.“It’s not like jazz or early rock,”I’d say.“Thosewere happy.When you hear rap blasting from a passing car,youwonder what the driver’s so mad at.”I submit that historians will lable our times The Age展开更多
关于 eke out 的含义和用法,B.A.Phythian 在他编纂的 AConcise Dictionary of Correct Engligh(1982)中曾明确指出: eke out:supplement,make something go further orlast longer by adding to it.The common error is to use“eke ou...关于 eke out 的含义和用法,B.A.Phythian 在他编纂的 AConcise Dictionary of Correct Engligh(1982)中曾明确指出: eke out:supplement,make something go further orlast longer by adding to it.The common error is to use“eke out”as if it meant simply“make to last longer.”…The object of“eke out”must be something that is supple-展开更多
In this 200th year of our Constitution, we need to recall how that remarkable, unprecedented do-cument came into being and to ponder what it meant--andwhat it continues to mean today. How did it happen that55 men in a...In this 200th year of our Constitution, we need to recall how that remarkable, unprecedented do-cument came into being and to ponder what it meant--andwhat it continues to mean today. How did it happen that55 men in a country of fewer than four million peoplewere cast by history to take actions that would placeithem forever in freedom’s hall of fame?展开更多
文摘In order to improve the hemostatic effectiveness of ethamsylate in treatment ofupper gastrointestinal hemorrhage,we had developed a new type of hemostatic drug-oral and magnetically controlled ethamsylate microspheres (abbreviation:the etham-sylate microspheres) and tested their parameters associated with physical and chemi-cal respects.Its main characteristics that we found were: 1】 The ethamsylate mi-
文摘WHAT IS BIOTECHNOLOGYIn the earlier time,biotechnologymainly meant microbiologic fermention.Since 1970‘s,as gene engineering,cytolog-ical engineering and enzyme technologydeveloped,the technology of using organ-ism functions became the basic intension ofbiotechnology.Biotechnology can be de-fined as an area of applied bioscience andtechnology,which is based on the theoriesof biology(microbiology,genetics,biochemistry,cytology,molecular biology),
文摘Here reported the ester exchange of DIPP-His with primaryalcohols and found that the rate of this reaction was increased asthe increment of the carbon chain of alcohols used.
文摘The methods of in vitro and in vivo-in vitro combinationassay for autoradiographic detection of unscheduled DNAsynthesis(UDS)induced by chemical carcinogens wasestablished.To estimate the reliability of these assays,UDS in tissues slices was measured with the establishedmethods after exposure to MNNG and dimethylnitrosamine(DMN)in vitro or in vivo respectively.To study thesusceptibility of various tissues to chemicals,UDS
文摘All 15 members of the UN Security Council endorsed on December 3 a full-scale military operation led by the United States to make sure aid meant for millions of starving Somalis is not looted by rampaging gangs. On December 9, hundreds of US Marines stormed Mogadishu in a bloodlessly staged strike and took over the harbour and airport.
文摘Friends call Cao Yingbin by his nickname ’Cao er’ (Little Cao), and I always thought they meant ’Little Manger’ (also pronounced ’Cao er’ in Chinese). The
文摘From my second year of primary school on,there was oneevent I dreaded every year:the piano recital.A recital meant I hadto practice a boring piece of music and perform in front of strangerswho,I was sure,knew the notes much better than I.It also meantwearing a crinkly crinoline dress and enduring the bright lights ofa movie camera as I swished across the church stage.
文摘Recently my college-age daughter said,“I hate modem classi-cal music.It always sounds so angry.”I had never thought of modern music that way,but as soon asshe said it,I knew what she meant.I’ve often criticized rap forthat reason.“It’s not like jazz or early rock,”I’d say.“Thosewere happy.When you hear rap blasting from a passing car,youwonder what the driver’s so mad at.”I submit that historians will lable our times The Age
文摘关于 eke out 的含义和用法,B.A.Phythian 在他编纂的 AConcise Dictionary of Correct Engligh(1982)中曾明确指出: eke out:supplement,make something go further orlast longer by adding to it.The common error is to use“eke out”as if it meant simply“make to last longer.”…The object of“eke out”must be something that is supple-
文摘In this 200th year of our Constitution, we need to recall how that remarkable, unprecedented do-cument came into being and to ponder what it meant--andwhat it continues to mean today. How did it happen that55 men in a country of fewer than four million peoplewere cast by history to take actions that would placeithem forever in freedom’s hall of fame?
