Five factors influencing minute volume during high frequency jet ventilation were studied on lung modal by stepwise regression analysis. Among these factors, driving pressure is of the greatest dominance. Others are i...Five factors influencing minute volume during high frequency jet ventilation were studied on lung modal by stepwise regression analysis. Among these factors, driving pressure is of the greatest dominance. Others are inspiratory and expiratory time ratio, tube diameter, frequency of ventilation and needle distanee, in the order of their impact. A formula was also developed for predicting the parameters.The result is quite satisfactory.展开更多
When do people decide whether or not they want to become friends?During their first four minutes together, according to a book by Dr.Leonard Zunin. In his book. Contact①: The First Four Minutes, heoffers this advice ...When do people decide whether or not they want to become friends?During their first four minutes together, according to a book by Dr.Leonard Zunin. In his book. Contact①: The First Four Minutes, heoffers this advice to anyone interested in starting new friendships: 'Everytime you meet someone in a social situation, give him your展开更多
第一部分:听力(略) 第三部分:英语知识运用第一节:单项填空从A、B、C、D四个选项中,选出可以填入空白处的最佳选项,并在答题卡上将该项涂黑。21.- May I take your order now?- Ok, I’ll come back in a few minutes. A. No, not yet. ...第一部分:听力(略) 第三部分:英语知识运用第一节:单项填空从A、B、C、D四个选项中,选出可以填入空白处的最佳选项,并在答题卡上将该项涂黑。21.- May I take your order now?- Ok, I’ll come back in a few minutes. A. No, not yet. We need more time.展开更多
Background:The optimal time to save a person who has had a sudden cardiac arrest is within the first few minutes of the incident.Early compression and early defibrillation should be performed at this time.Timeliness i...Background:The optimal time to save a person who has had a sudden cardiac arrest is within the first few minutes of the incident.Early compression and early defibrillation should be performed at this time.Timeliness is the key to successful CPR; as such,Prof.He proposed the 'platinum 10 min' system to study early CPR issues.This paper systematically evaluates the success rates of heartbeat restoration within the 'platinum 10min' among patients suffering from sudden cardiac arrest.Methods:The clinical data of outpatients suffering from a cardiac arrest were retrieved from the China Knowledge Network(January 1975-January 2015),the Chongqing VIP database(January 1989-January 2015),and the Wanfang database(January 1990-January 2015).The success of the cardiopulmonary resuscitation(CPR) performed at different times after the patients had cardiac arrests was analyzed.Two researchers screened the literature and extracted the data independently.A meta-analysis was conducted using Stata 12.0.A total of 57 papers met the inclusion criteria,including 29,269 patients.Of these patients,1,776 had their heartbeats successfully restored.The results showed high heterogeneity(χ~2=3428.85,P<0.01,I2=98.4%).The meta-analysis was conducted using a random-effects model.The combined effect size was 0.171(0.144-0.199).Results:1) The success rate of heartbeat restoration did not differ among the four emergency treatment methods that patients received:the methods described in the 2000 Guidelines for CPR and Emergency Cardiovascular Care,that described in the 2005 version,2010 version,and another CPR method.2) The patients were divided into five groups based on the time when CPR was performed:the ?1min group,the 1-5min group,the 5-10 min group,the 10-15 min group and the >15min group.The CPR success rates of these five groups were 0.247(0.15-0.344),0.353(0.250-0.456),0.136(0.109-0.163),0.058(0.041-0.075),and 0.011(0.004-0.019),respectively.The CPR success rates did not differ between the patients in the ?1min group and the 1-5min group.This success rate was higher for the patients in the 1-5min group than those in the 10-15 min group,those in the 10-15 min group,and those in the >15min group.The CPR success rate was higher for the patients in the 5-10 min group than those in the 10-15 min group and those in the >15min group.The CPR success rate was higher for the patients in the 10-15 min group than those in the >15min group.In addition,the patients were divided into two groups based on whether CPR was performed within the first 10 min after the cardiac arrest occurred:the ?10min group and the >10min group.The CPR success rate was higher for the patients in the ?10min group [0.189(0.161-0.218)] than those in the >10min group [0.044(0.032-0.056)].3) Differences were not found between the CPR success rates among the patients in the telephone guidance group [0.167(0.016-0.351)] and those in the ?1min,1-5min,5-10 min,10-15 min,and >15min groups.4) The CPR success rates did not differ among in the patients in the witness + public group [0.329(0.221-0.436)],those in the ?1min group,and those in the 1-5min group.However,this success rate was higher in the patients in the witness + public group than those in the 5-10 min,10-15 min,and >15min groups.Conclusion:The success rate of heartbeat restoration did not differ among patients receiving CPR based on different guidelines.The success rate of CPR lies in its timeliness.The participation of the general population is the cornerstone of improving CPR.Providing complete emergency treatment equipment and perfecting comprehensive measures can improve the success rate of CPR among patients within the platinum 10 min.CPR research in China must be improved.展开更多
英语中有些表示时间的名词,象moment,minute,instant,second,time,day,month,winter,year等等,可以用来引导时间状语从句。如: 1)I recognized him the moment I saw him. 2)She began taming about you the day we met. 句1)中的the mo...英语中有些表示时间的名词,象moment,minute,instant,second,time,day,month,winter,year等等,可以用来引导时间状语从句。如: 1)I recognized him the moment I saw him. 2)She began taming about you the day we met. 句1)中的the moment很象一个连词。展开更多
教学片段:T:Boys and girls.Let’s play a game.OK?Ss:OK.T:The game is called"Tell me what he/she said."A student says a sentence to someone;the listener tells us what he/she said.Model:A:I am sad.B:he said he ...教学片段:T:Boys and girls.Let’s play a game.OK?Ss:OK.T:The game is called"Tell me what he/she said."A student says a sentence to someone;the listener tells us what he/she said.Model:A:I am sad.B:he said he was sad.(在B同学回答完,教师将句子投影到屏幕上,让其他同学判断B同学转述的是否正确)T:You can write down your sentences fi rst.(Wait 2 minutes for writing)S1:I am writing.S2:He said that he is writing.T:Is she right?Ss:No.展开更多
The Beijng Huairou extensive air shower(EAS)array has been operating since March 1988.Using data observed during the period from April 1991 through January 1993,a burst of 12 EAS events were observed within 2-minute i...The Beijng Huairou extensive air shower(EAS)array has been operating since March 1988.Using data observed during the period from April 1991 through January 1993,a burst of 12 EAS events were observed within 2-minute interval beginning at 4:41′54〃ante meridiem on December 301991 universal time,while only 2 EAS events on average would have been expected during such time interval.展开更多
Vitamin E(tocopherol),one of the ma-jor vitamins a human being needs,is an impor-tant antioxidant as well as a radical scavengerin organisms.However,no determinations ofvitamin E concentration for dilatationcardiomyop...Vitamin E(tocopherol),one of the ma-jor vitamins a human being needs,is an impor-tant antioxidant as well as a radical scavengerin organisms.However,no determinations ofvitamin E concentration for dilatationcardiomyopathy have yet been reported athome or abroad.The authors have展开更多
It was a week-end in summer and all the down trains were overcrowded. An old man was walking along the platform, looking for a vacant seat. Suddenly he saw one in a nonsmoker. The old man got in. A small bag was lying...It was a week-end in summer and all the down trains were overcrowded. An old man was walking along the platform, looking for a vacant seat. Suddenly he saw one in a nonsmoker. The old man got in. A small bag was lying on the seat and a well-dressed gentleman was sitting beside it. 'Is this seat vacant?' asked the old man.展开更多
1. I have bought __ new stamps.A. dozens of B. two dozens C. the dozens of D. dozens2. The church is __ away from here.A. one and a half mile B. a mile and a halfC. one and a half miles D. a mile and one half3. __ the...1. I have bought __ new stamps.A. dozens of B. two dozens C. the dozens of D. dozens2. The church is __ away from here.A. one and a half mile B. a mile and a halfC. one and a half miles D. a mile and one half3. __ the guests at the hotel __ from Europe.展开更多
Thomas Edison got many patents (专利) oninventions than other American.When he diedin 1931,Americans wondered what they couldbest show their respect for him.One suggestionwas that the nation observed a minute or twoof...Thomas Edison got many patents (专利) oninventions than other American.When he diedin 1931,Americans wondered what they couldbest show their respect for him.One suggestionwas that the nation observed a minute or twoof blaekout(断电).All electric power would shutoff at homes,streets and factories.Perhapsthis suggestion made Americans to realize fullywhat Edison and his inventions meaned to them.展开更多
文摘Five factors influencing minute volume during high frequency jet ventilation were studied on lung modal by stepwise regression analysis. Among these factors, driving pressure is of the greatest dominance. Others are inspiratory and expiratory time ratio, tube diameter, frequency of ventilation and needle distanee, in the order of their impact. A formula was also developed for predicting the parameters.The result is quite satisfactory.
文摘When do people decide whether or not they want to become friends?During their first four minutes together, according to a book by Dr.Leonard Zunin. In his book. Contact①: The First Four Minutes, heoffers this advice to anyone interested in starting new friendships: 'Everytime you meet someone in a social situation, give him your
文摘第一部分:听力(略) 第三部分:英语知识运用第一节:单项填空从A、B、C、D四个选项中,选出可以填入空白处的最佳选项,并在答题卡上将该项涂黑。21.- May I take your order now?- Ok, I’ll come back in a few minutes. A. No, not yet. We need more time.
文摘Background:The optimal time to save a person who has had a sudden cardiac arrest is within the first few minutes of the incident.Early compression and early defibrillation should be performed at this time.Timeliness is the key to successful CPR; as such,Prof.He proposed the 'platinum 10 min' system to study early CPR issues.This paper systematically evaluates the success rates of heartbeat restoration within the 'platinum 10min' among patients suffering from sudden cardiac arrest.Methods:The clinical data of outpatients suffering from a cardiac arrest were retrieved from the China Knowledge Network(January 1975-January 2015),the Chongqing VIP database(January 1989-January 2015),and the Wanfang database(January 1990-January 2015).The success of the cardiopulmonary resuscitation(CPR) performed at different times after the patients had cardiac arrests was analyzed.Two researchers screened the literature and extracted the data independently.A meta-analysis was conducted using Stata 12.0.A total of 57 papers met the inclusion criteria,including 29,269 patients.Of these patients,1,776 had their heartbeats successfully restored.The results showed high heterogeneity(χ~2=3428.85,P<0.01,I2=98.4%).The meta-analysis was conducted using a random-effects model.The combined effect size was 0.171(0.144-0.199).Results:1) The success rate of heartbeat restoration did not differ among the four emergency treatment methods that patients received:the methods described in the 2000 Guidelines for CPR and Emergency Cardiovascular Care,that described in the 2005 version,2010 version,and another CPR method.2) The patients were divided into five groups based on the time when CPR was performed:the ?1min group,the 1-5min group,the 5-10 min group,the 10-15 min group and the >15min group.The CPR success rates of these five groups were 0.247(0.15-0.344),0.353(0.250-0.456),0.136(0.109-0.163),0.058(0.041-0.075),and 0.011(0.004-0.019),respectively.The CPR success rates did not differ between the patients in the ?1min group and the 1-5min group.This success rate was higher for the patients in the 1-5min group than those in the 10-15 min group,those in the 10-15 min group,and those in the >15min group.The CPR success rate was higher for the patients in the 5-10 min group than those in the 10-15 min group and those in the >15min group.The CPR success rate was higher for the patients in the 10-15 min group than those in the >15min group.In addition,the patients were divided into two groups based on whether CPR was performed within the first 10 min after the cardiac arrest occurred:the ?10min group and the >10min group.The CPR success rate was higher for the patients in the ?10min group [0.189(0.161-0.218)] than those in the >10min group [0.044(0.032-0.056)].3) Differences were not found between the CPR success rates among the patients in the telephone guidance group [0.167(0.016-0.351)] and those in the ?1min,1-5min,5-10 min,10-15 min,and >15min groups.4) The CPR success rates did not differ among in the patients in the witness + public group [0.329(0.221-0.436)],those in the ?1min group,and those in the 1-5min group.However,this success rate was higher in the patients in the witness + public group than those in the 5-10 min,10-15 min,and >15min groups.Conclusion:The success rate of heartbeat restoration did not differ among patients receiving CPR based on different guidelines.The success rate of CPR lies in its timeliness.The participation of the general population is the cornerstone of improving CPR.Providing complete emergency treatment equipment and perfecting comprehensive measures can improve the success rate of CPR among patients within the platinum 10 min.CPR research in China must be improved.
文摘英语中有些表示时间的名词,象moment,minute,instant,second,time,day,month,winter,year等等,可以用来引导时间状语从句。如: 1)I recognized him the moment I saw him. 2)She began taming about you the day we met. 句1)中的the moment很象一个连词。
文摘教学片段:T:Boys and girls.Let’s play a game.OK?Ss:OK.T:The game is called"Tell me what he/she said."A student says a sentence to someone;the listener tells us what he/she said.Model:A:I am sad.B:he said he was sad.(在B同学回答完,教师将句子投影到屏幕上,让其他同学判断B同学转述的是否正确)T:You can write down your sentences fi rst.(Wait 2 minutes for writing)S1:I am writing.S2:He said that he is writing.T:Is she right?Ss:No.
文摘The Beijng Huairou extensive air shower(EAS)array has been operating since March 1988.Using data observed during the period from April 1991 through January 1993,a burst of 12 EAS events were observed within 2-minute interval beginning at 4:41′54〃ante meridiem on December 301991 universal time,while only 2 EAS events on average would have been expected during such time interval.
文摘Vitamin E(tocopherol),one of the ma-jor vitamins a human being needs,is an impor-tant antioxidant as well as a radical scavengerin organisms.However,no determinations ofvitamin E concentration for dilatationcardiomyopathy have yet been reported athome or abroad.The authors have
文摘It was a week-end in summer and all the down trains were overcrowded. An old man was walking along the platform, looking for a vacant seat. Suddenly he saw one in a nonsmoker. The old man got in. A small bag was lying on the seat and a well-dressed gentleman was sitting beside it. 'Is this seat vacant?' asked the old man.
文摘1. I have bought __ new stamps.A. dozens of B. two dozens C. the dozens of D. dozens2. The church is __ away from here.A. one and a half mile B. a mile and a halfC. one and a half miles D. a mile and one half3. __ the guests at the hotel __ from Europe.
文摘Thomas Edison got many patents (专利) oninventions than other American.When he diedin 1931,Americans wondered what they couldbest show their respect for him.One suggestionwas that the nation observed a minute or twoof blaekout(断电).All electric power would shutoff at homes,streets and factories.Perhapsthis suggestion made Americans to realize fullywhat Edison and his inventions meaned to them.
