BACKGROUND Term pregnancy-induced labor refers to the use of artificial methods to induce uterine contractions and terminate pregnancy after 37 wk.It is a common method to prevent overdue pregnancy and to deal with hi...BACKGROUND Term pregnancy-induced labor refers to the use of artificial methods to induce uterine contractions and terminate pregnancy after 37 wk.It is a common method to prevent overdue pregnancy and to deal with high-risk pregnancies.In addition,it can alleviate maternal complications and cause the fetus to leave the adverse intrauterine environment early,which is beneficial to the outcome of pregnancy.AIM To explore the effect of a birthing ball on labor by inducing cervical ripening and its influence on labor and the neonatal blood gas index.METHODS Twenty-two women who were scheduled to undergo labor induction and delivery in the obstetrics department of our hospital were randomly divided into two groups:the delivery ball group(childbirth ball combined with COOK balloon induction)and the conventional group(COOK balloon induction alone).The cervical Bishop score before and after intervention,duration of labor at each stage,mode of delivery,neonatal umbilical venous blood pH,oxygen partial pressure(PO_(2)),carbon dioxide partial pressure(PCO_(2)),and the 1-min Apgar score were recorded.RESULTS After the intervention,the cervical Bishop score of the delivery ball group(7.84±1.52)was significantly higher than that of the conventional group(7.32±1.29)(P<0.05),and the cervical Bishop scores of the two groups after intervention were significantly higher than those before intervention(P<0.05).After the intervention,the first stage of labor(510.9±98.7 min),the second stage of labor(43.0±8.5 min),and the total duration of labor(560.0±120.9 min)in the delivery ball group were lower than those in the routine group,with a first stage of labor of 602.1±133.2 min,a second stage of labor of 48.4±9.1 min,and a total duration of labor of 656.8±148.5 min(P<0.05).There was no significant difference in the time of the third stage of labor between the two groups(P>0.05).There was no significant difference in the pH,PO_(2),and PCO_(2) values of newborns between the delivery ball group and the conventional group(P>0.05).The 1-min Apgar score of the delivery ball group was higher than that of the conventional group(9.10±0.38 points vs 8.94±0.31 points,P<0.05).The natural delivery rate of the delivery ball group was higher than that of the conventional group(91.00%vs 78.00%,P<0.05).CONCLUSION The use of a birthing ball combined with a COOK balloon for inducing labor has a better effect on promoting cervical ripening,shortening the time of labor,and improving the Apgar score of newborns.展开更多
The following outcomes can be observed according to the statistical analysis on the prosperity index of China’s natural gas industry:In the third quarter of 2017,the prosperity index of China’s natural gas industry ...The following outcomes can be observed according to the statistical analysis on the prosperity index of China’s natural gas industry:In the third quarter of 2017,the prosperity index of China’s natural gas industry was 53.67,which was in a normal business climate,slightly up compared with the prosperity index of 52.27 in the second quarter of 2017.The seasonal展开更多
The goal of this study was to investigate coal quality features and their relationship to coal spontaneous combustion characteristics in multi-seam coal mines to better predict when coal spontaneous combustion is like...The goal of this study was to investigate coal quality features and their relationship to coal spontaneous combustion characteristics in multi-seam coal mines to better predict when coal spontaneous combustion is likely to occur.To that end,coal samples of various particle sizes were obtained from five coal seams(Nos.6,8,9,12 and 20)in the Shuangyashan City Xin’an Coal Mine.The samples were then respectively heated using a temperature programming system to observe and compare similarities and differences in the sponta-neous combustion process of different particle sizes in response to rising temperature.The experimental results show,that in all five coal seams,the concentration of CO,C_(2)H_(4),and C_(2)H_(6) increased with a certain degree of regularity as a function of rising temperature.However,of these three gasses,only CO and C_(2)H_(4) can be used as indicators to predict coal mine spontaneous combustion.The critical temperature for samples from all five coal seams ranged from 50–85℃,while the dry cracking temperature of coal seams 8 and 12(80–100℃)were lower than those of 6,9,and 20(100–120℃).Furthermore,the production rate of CO,C_(2)H_(4),and C_(2)H_(6) is related to both coal particle size and temperature.The smaller the particle size,the faster the production rate;and the higher the temperature,the more gas that gets produced.All five coal seems are mainly com-posed of long flame coal.However,they differ in that the No.12 coal seam contains weak cohesive coal;the No.8 coal seam contains lean and gas coal;and the Nos.6,9,and 20 coal seams contain a certain amount of anthracite.During the programmed coal heating,the CO,C_(2)H_(4),and C_(2)H_(6) release trend for the coal seams was No.12>No.8>Nos.6,9,and 20.These results demonstrate that the presence of weak cohesive coal and anthracite highly influence the concentration of CO,C_(2)H_(4),and C_(2)H_(6) released during coal spontaneous combustion.展开更多
基金Science and Technology Project of Municipal Health Commission of Lianyungang,No.QN202010.
文摘BACKGROUND Term pregnancy-induced labor refers to the use of artificial methods to induce uterine contractions and terminate pregnancy after 37 wk.It is a common method to prevent overdue pregnancy and to deal with high-risk pregnancies.In addition,it can alleviate maternal complications and cause the fetus to leave the adverse intrauterine environment early,which is beneficial to the outcome of pregnancy.AIM To explore the effect of a birthing ball on labor by inducing cervical ripening and its influence on labor and the neonatal blood gas index.METHODS Twenty-two women who were scheduled to undergo labor induction and delivery in the obstetrics department of our hospital were randomly divided into two groups:the delivery ball group(childbirth ball combined with COOK balloon induction)and the conventional group(COOK balloon induction alone).The cervical Bishop score before and after intervention,duration of labor at each stage,mode of delivery,neonatal umbilical venous blood pH,oxygen partial pressure(PO_(2)),carbon dioxide partial pressure(PCO_(2)),and the 1-min Apgar score were recorded.RESULTS After the intervention,the cervical Bishop score of the delivery ball group(7.84±1.52)was significantly higher than that of the conventional group(7.32±1.29)(P<0.05),and the cervical Bishop scores of the two groups after intervention were significantly higher than those before intervention(P<0.05).After the intervention,the first stage of labor(510.9±98.7 min),the second stage of labor(43.0±8.5 min),and the total duration of labor(560.0±120.9 min)in the delivery ball group were lower than those in the routine group,with a first stage of labor of 602.1±133.2 min,a second stage of labor of 48.4±9.1 min,and a total duration of labor of 656.8±148.5 min(P<0.05).There was no significant difference in the time of the third stage of labor between the two groups(P>0.05).There was no significant difference in the pH,PO_(2),and PCO_(2) values of newborns between the delivery ball group and the conventional group(P>0.05).The 1-min Apgar score of the delivery ball group was higher than that of the conventional group(9.10±0.38 points vs 8.94±0.31 points,P<0.05).The natural delivery rate of the delivery ball group was higher than that of the conventional group(91.00%vs 78.00%,P<0.05).CONCLUSION The use of a birthing ball combined with a COOK balloon for inducing labor has a better effect on promoting cervical ripening,shortening the time of labor,and improving the Apgar score of newborns.
文摘The following outcomes can be observed according to the statistical analysis on the prosperity index of China’s natural gas industry:In the third quarter of 2017,the prosperity index of China’s natural gas industry was 53.67,which was in a normal business climate,slightly up compared with the prosperity index of 52.27 in the second quarter of 2017.The seasonal
基金support from the Major Project of Engineering Science and Technology in Heilongjiang Province in 2020(Grant No.2020ZX04A01)support from the Scientific Research Projects of Undergraduate Universities in Heilongjiang Province(Grant No.2020-KYYWF-0534).
文摘The goal of this study was to investigate coal quality features and their relationship to coal spontaneous combustion characteristics in multi-seam coal mines to better predict when coal spontaneous combustion is likely to occur.To that end,coal samples of various particle sizes were obtained from five coal seams(Nos.6,8,9,12 and 20)in the Shuangyashan City Xin’an Coal Mine.The samples were then respectively heated using a temperature programming system to observe and compare similarities and differences in the sponta-neous combustion process of different particle sizes in response to rising temperature.The experimental results show,that in all five coal seams,the concentration of CO,C_(2)H_(4),and C_(2)H_(6) increased with a certain degree of regularity as a function of rising temperature.However,of these three gasses,only CO and C_(2)H_(4) can be used as indicators to predict coal mine spontaneous combustion.The critical temperature for samples from all five coal seams ranged from 50–85℃,while the dry cracking temperature of coal seams 8 and 12(80–100℃)were lower than those of 6,9,and 20(100–120℃).Furthermore,the production rate of CO,C_(2)H_(4),and C_(2)H_(6) is related to both coal particle size and temperature.The smaller the particle size,the faster the production rate;and the higher the temperature,the more gas that gets produced.All five coal seems are mainly com-posed of long flame coal.However,they differ in that the No.12 coal seam contains weak cohesive coal;the No.8 coal seam contains lean and gas coal;and the Nos.6,9,and 20 coal seams contain a certain amount of anthracite.During the programmed coal heating,the CO,C_(2)H_(4),and C_(2)H_(6) release trend for the coal seams was No.12>No.8>Nos.6,9,and 20.These results demonstrate that the presence of weak cohesive coal and anthracite highly influence the concentration of CO,C_(2)H_(4),and C_(2)H_(6) released during coal spontaneous combustion.
