We assessed the concomitant impact of cigarette smoking and alcohol con sumption in men presenting for primary couple's infertility.Data from 189 in fertile men were an a lyzed.Semen analysis,serum hormones,and sp...We assessed the concomitant impact of cigarette smoking and alcohol con sumption in men presenting for primary couple's infertility.Data from 189 in fertile men were an a lyzed.Semen analysis,serum hormones,and sperm DNA fragmentation(SDF)were obtained.Smoking status was categorized as follows:current nonsmoker(-S),moderate smoker(+MS),and heavy smoker(+HS).Alcohol consumption was categorized as follows:abstainer(-D),moderate drinker(+MD),and heavy drinker(+HD).Descriptive statistics and logistic regression models were applied.Among all the participants,132(69.8%),30(15.9%),and 27(14.3%)patients were-S,+MS,and+HS,respectively.In addition,67(35.4%),77(40.7%)and 45(23.8%)men were-D,+MD and+HD,respectively.Regarding concomitant habits,52(27.5%)patients were nonsmokers and abstainers(-S/-D:Group 1),91(48.1%)had at least one recreational habit(-S/+D or+S/-D:Group 2),and 46(24.3%)were both smokers and drinkers(+S/+D:Group 3).Sperm concentration and progressive motility were lower in+HS and+HD,compared with-S and-D(all P<0.05),respectively.Similarly,both parameters were significantly lower in Group 3 than Groups 1 and 2(all P<0.05).SDF values were higher in Group 3 than Groups 1 and 2(both P<0.05).In multivariate analysis,follicle-stimulating hormone(FSH)levels and concomitant+S/+D status were independent predictors of impaired sperm concentration and progressive motility(all P<0.05).Heavy smoking and heavy drinking were associated with worse seminal parameters than moderate smoking/drinking and nonsmoking/abstaining.When concomitant,+S/+D status has an even greater detrimental effect on semen parameters.展开更多
Energy and environmental problems have raised great concerns in recent years.Increasing demand and consumption on energy cause many environmental problems.Therefore,the significance of renewable energy is increasing s...Energy and environmental problems have raised great concerns in recent years.Increasing demand and consumption on energy cause many environmental problems.Therefore,the significance of renewable energy is increasing steadily.展开更多
Internet of Things （IoT） refers to an infrastructure which enables the forms of com- munication and collaboration between people and things, and between things themselves. In order to improve its performance, we pre...Internet of Things （IoT） refers to an infrastructure which enables the forms of com- munication and collaboration between people and things, and between things themselves. In order to improve its performance, we present a tradeoff between bandwidth and energy con- sumption in the loT in this paper. A service providing model is built to find the relation- ship between bandwidth and energy consump- tion using a cooperative differential game mo- del. The game solution is gotten in the condi- tion of grand coalition, feedback Nash equili- brium and intermediate coalitions and an allo- cation policy is obtain by Shapley theory. The results are shown as follows. Firstly, the per- formance of IoT decreases with the increasing of bandwidth cost or with the decreasing of en- ergy cost; secondly, all the nodes in the IoT com- posing a grand coalition can save bandwidth and energy consumption; thirdly, when the fac- tors of bandwidth cost and energy cost are eq- ual, the obtained number of provided services is an optimised value which is the trade-off between energy and bandwidth consumption.展开更多
Why China’s early work resumption means hope for world economy China’s economic recovery is stronger than expected,predicted to grow by 1.9 percent in 2020,according to the latest World Economic Outlook report relea...Why China’s early work resumption means hope for world economy China’s economic recovery is stronger than expected,predicted to grow by 1.9 percent in 2020,according to the latest World Economic Outlook report released by the International Monetary Fund(IMF)on October 13.展开更多
The sudden COVID-19 pandemic disrupted Chinese people’s normal lives and work and cast a shadow on China’s economy at the beginning of 2020.To prevent the virus’s spread,many provinces and cities across China imple...The sudden COVID-19 pandemic disrupted Chinese people’s normal lives and work and cast a shadow on China’s economy at the beginning of 2020.To prevent the virus’s spread,many provinces and cities across China implemented traffic control,resulting in prolonged shutdowns of scenic spots,movie theaters,and other crowded places,and delayed the resumption of the manufacturing industry.Consumption,the main engine of economic growth,also faced new challenges owing to the pandemic’s impact.Whereas the pandemic had a substantial impact on offline consumption,people staying at home for a long time promoted the rapid development of online consumption in the“homebody economy,”spawning many new business forms and models.展开更多
According to estimations of zinc consumptionby China’s major zinc consumption industries,the growth rate of China’s actual zinc con-sumption in the period 1998-2002 was 10.2percent.Of China’s total zinc consumption...According to estimations of zinc consumptionby China’s major zinc consumption industries,the growth rate of China’s actual zinc con-sumption in the period 1998-2002 was 10.2percent.Of China’s total zinc consumption inyear 2002,galvanizing zinc made 36 percent,展开更多
maintains that the consumption structure is the sum of the relations within and among the various social and natural factors in people’sdaily consumption and of their quantitative proportions.It controls the cycle of...maintains that the consumption structure is the sum of the relations within and among the various social and natural factors in people’sdaily consumption and of their quantitative proportions.It controls the cycle ofsocialist expanded reproduction and the development of the national economy andhas much to do with how well the objectives of socialist production are realized. Yangand Li expound the following features of the future consumer structure of China’shouseholds and individuals: transition from subsistence consumption to affluent con-sumption, from limited to guided consumption,from semi-supplied to self-managedconsumption,from autarkic to commodity consumption, and from similar to varied con-sumption.They also conduct an initial analysis of China’s consumer macrostructure.展开更多
Disklike liquid crystals possess a columnar phase as liquid crystalline state. The degree of order of the molecular system describes the aggregation properties of individual liquid crystalline molecules. In the author...Disklike liquid crystals possess a columnar phase as liquid crystalline state. The degree of order of the molecular system describes the aggregation properties of individual liquid crystalline molecules. In the author’s recent work, it was proved that infrared spectral intensity of 1615 cm<sup>-1</sup> band of benzene-hexa-n-alkanoates （BHn）was simply sensitive to the orders展开更多
CHINA is the world’s second-largest economy,and how its economic growth progresses will inevitably influence that globally.The outside world has followed closely the sustainability of China’s economic growth.Such in...CHINA is the world’s second-largest economy,and how its economic growth progresses will inevitably influence that globally.The outside world has followed closely the sustainability of China’s economic growth.Such interest was the basis for the BBC documentary How China Fooled the World.The documentary is centered around China’s economic growth having been driven by vast amounts of credit from the banking sector over the past few years.展开更多
Raw materials are in short supply Diphenylmethane diisocyanate(MDI)ismainly used for the production of PU(polyurethane)products.China’s total con-sumption of MDl in 2007
1.Current situation of traffic congestion in Shanghai and progress of studies on traffic problems at home and abroadThe traffic congestion in the Central City of Shanghai is aggravating day by day①facilities will bri...1.Current situation of traffic congestion in Shanghai and progress of studies on traffic problems at home and abroadThe traffic congestion in the Central City of Shanghai is aggravating day by day①facilities will bring about the increase of new traffic,展开更多
The recent spread of the global pandemic has triggered a financial earthquake and a global economic downturn,which has tightened the foreign trade situation.From 18 to 22 March 2020,the China Home Textile Association ...The recent spread of the global pandemic has triggered a financial earthquake and a global economic downturn,which has tightened the foreign trade situation.From 18 to 22 March 2020,the China Home Textile Association has again carried out the“investigation on the resumption of production and operation of the home textile industry”.A total of 165 valid questionnaires for home textile enterprises and 17 valid questionnaires for home textile industry clusters were received in this questionnaire survey.The results of this investigation and analysis show that:Home textile enterprises’resumption of production has improved;foreign trade exports are under severe pressure.展开更多
The National Development and Reform Commission published the"Eleventh Five-year Program for the Development of Re-newable Energies"on March 18th.China has set a target of the proportion of renewable energies...The National Development and Reform Commission published the"Eleventh Five-year Program for the Development of Re-newable Energies"on March 18th.China has set a target of the proportion of renewable energies in the energy con-sumption being 10% by 2010.The con-sumption of renewable energies will be equal to 300 million tons of standard coal by 2010,approximately doubling that in 2005.The total amount for the development and applications of renewable energies in China(non-used in traditional ways) was equiva-lent to 166 million tons of standard coal in 2005,accounting for around 7.5% of展开更多
Glyphosate as a high-effect,low-toxicity and broad-spectrum herbicide has become the pesticide variety with the fastest con-sumption growth and the greatest outputin
As was projected in the third-quar-ter monetary policy implementa-tion report published by thePeople’s Bank of China on Novem-ber 15th,2006,the residents’ con-sumption price index in Chinawould reach 1.5% in 2006.Pr...As was projected in the third-quar-ter monetary policy implementa-tion report published by thePeople’s Bank of China on Novem-ber 15th,2006,the residents’ con-sumption price index in Chinawould reach 1.5% in 2006.Prices ofconsumer commodities such aswater,power and natural gaswould rise and the pressure of in-flation would persist in the future."The time for using low-priceclean energies has gone forever,"said an expert from the Oil/Gas Di-vision of NDRC(the National De-velopment and展开更多
文摘We assessed the concomitant impact of cigarette smoking and alcohol con sumption in men presenting for primary couple's infertility.Data from 189 in fertile men were an a lyzed.Semen analysis,serum hormones,and sperm DNA fragmentation(SDF)were obtained.Smoking status was categorized as follows:current nonsmoker(-S),moderate smoker(+MS),and heavy smoker(+HS).Alcohol consumption was categorized as follows:abstainer(-D),moderate drinker(+MD),and heavy drinker(+HD).Descriptive statistics and logistic regression models were applied.Among all the participants,132(69.8%),30(15.9%),and 27(14.3%)patients were-S,+MS,and+HS,respectively.In addition,67(35.4%),77(40.7%)and 45(23.8%)men were-D,+MD and+HD,respectively.Regarding concomitant habits,52(27.5%)patients were nonsmokers and abstainers(-S/-D:Group 1),91(48.1%)had at least one recreational habit(-S/+D or+S/-D:Group 2),and 46(24.3%)were both smokers and drinkers(+S/+D:Group 3).Sperm concentration and progressive motility were lower in+HS and+HD,compared with-S and-D(all P<0.05),respectively.Similarly,both parameters were significantly lower in Group 3 than Groups 1 and 2(all P<0.05).SDF values were higher in Group 3 than Groups 1 and 2(both P<0.05).In multivariate analysis,follicle-stimulating hormone(FSH)levels and concomitant+S/+D status were independent predictors of impaired sperm concentration and progressive motility(all P<0.05).Heavy smoking and heavy drinking were associated with worse seminal parameters than moderate smoking/drinking and nonsmoking/abstaining.When concomitant,+S/+D status has an even greater detrimental effect on semen parameters.
文摘Energy and environmental problems have raised great concerns in recent years.Increasing demand and consumption on energy cause many environmental problems.Therefore,the significance of renewable energy is increasing steadily.
基金ACKNOWLEDGEMENT We gratefully acknowledge anonymous revie- wers who read drafts and made many helpful suggestions. This work was supported by the National Natural Science Foundation of China under Grant No. 61202079 the China Post- doctoral Science Foundation under Grant No. 2013M530526+2 种基金 the Foundation of Beijing En- gineering the Fundamental Research Funds for the Central Universities under Grant No. FRF-TP-13-015A and the Technology Centre for Convergence Networks and Ubiquitous Services.
文摘Internet of Things （IoT） refers to an infrastructure which enables the forms of com- munication and collaboration between people and things, and between things themselves. In order to improve its performance, we present a tradeoff between bandwidth and energy con- sumption in the loT in this paper. A service providing model is built to find the relation- ship between bandwidth and energy consump- tion using a cooperative differential game mo- del. The game solution is gotten in the condi- tion of grand coalition, feedback Nash equili- brium and intermediate coalitions and an allo- cation policy is obtain by Shapley theory. The results are shown as follows. Firstly, the per- formance of IoT decreases with the increasing of bandwidth cost or with the decreasing of en- ergy cost; secondly, all the nodes in the IoT com- posing a grand coalition can save bandwidth and energy consumption; thirdly, when the fac- tors of bandwidth cost and energy cost are eq- ual, the obtained number of provided services is an optimised value which is the trade-off between energy and bandwidth consumption.
文摘Why China’s early work resumption means hope for world economy China’s economic recovery is stronger than expected,predicted to grow by 1.9 percent in 2020,according to the latest World Economic Outlook report released by the International Monetary Fund(IMF)on October 13.
文摘The sudden COVID-19 pandemic disrupted Chinese people’s normal lives and work and cast a shadow on China’s economy at the beginning of 2020.To prevent the virus’s spread,many provinces and cities across China implemented traffic control,resulting in prolonged shutdowns of scenic spots,movie theaters,and other crowded places,and delayed the resumption of the manufacturing industry.Consumption,the main engine of economic growth,also faced new challenges owing to the pandemic’s impact.Whereas the pandemic had a substantial impact on offline consumption,people staying at home for a long time promoted the rapid development of online consumption in the“homebody economy,”spawning many new business forms and models.
文摘According to estimations of zinc consumptionby China’s major zinc consumption industries,the growth rate of China’s actual zinc con-sumption in the period 1998-2002 was 10.2percent.Of China’s total zinc consumption inyear 2002,galvanizing zinc made 36 percent,
文摘maintains that the consumption structure is the sum of the relations within and among the various social and natural factors in people’sdaily consumption and of their quantitative proportions.It controls the cycle ofsocialist expanded reproduction and the development of the national economy andhas much to do with how well the objectives of socialist production are realized. Yangand Li expound the following features of the future consumer structure of China’shouseholds and individuals: transition from subsistence consumption to affluent con-sumption, from limited to guided consumption,from semi-supplied to self-managedconsumption,from autarkic to commodity consumption, and from similar to varied con-sumption.They also conduct an initial analysis of China’s consumer macrostructure.
文摘Disklike liquid crystals possess a columnar phase as liquid crystalline state. The degree of order of the molecular system describes the aggregation properties of individual liquid crystalline molecules. In the author’s recent work, it was proved that infrared spectral intensity of 1615 cm<sup>-1</sup> band of benzene-hexa-n-alkanoates （BHn）was simply sensitive to the orders
文摘CHINA is the world’s second-largest economy,and how its economic growth progresses will inevitably influence that globally.The outside world has followed closely the sustainability of China’s economic growth.Such interest was the basis for the BBC documentary How China Fooled the World.The documentary is centered around China’s economic growth having been driven by vast amounts of credit from the banking sector over the past few years.
文摘Raw materials are in short supply Diphenylmethane diisocyanate(MDI)ismainly used for the production of PU(polyurethane)products.China’s total con-sumption of MDl in 2007
文摘1.Current situation of traffic congestion in Shanghai and progress of studies on traffic problems at home and abroadThe traffic congestion in the Central City of Shanghai is aggravating day by day①facilities will bring about the increase of new traffic,
文摘The recent spread of the global pandemic has triggered a financial earthquake and a global economic downturn,which has tightened the foreign trade situation.From 18 to 22 March 2020,the China Home Textile Association has again carried out the“investigation on the resumption of production and operation of the home textile industry”.A total of 165 valid questionnaires for home textile enterprises and 17 valid questionnaires for home textile industry clusters were received in this questionnaire survey.The results of this investigation and analysis show that:Home textile enterprises’resumption of production has improved;foreign trade exports are under severe pressure.
文摘The National Development and Reform Commission published the"Eleventh Five-year Program for the Development of Re-newable Energies"on March 18th.China has set a target of the proportion of renewable energies in the energy con-sumption being 10% by 2010.The con-sumption of renewable energies will be equal to 300 million tons of standard coal by 2010,approximately doubling that in 2005.The total amount for the development and applications of renewable energies in China(non-used in traditional ways) was equiva-lent to 166 million tons of standard coal in 2005,accounting for around 7.5% of
文摘Glyphosate as a high-effect,low-toxicity and broad-spectrum herbicide has become the pesticide variety with the fastest con-sumption growth and the greatest outputin
文摘As was projected in the third-quar-ter monetary policy implementa-tion report published by thePeople’s Bank of China on Novem-ber 15th,2006,the residents’ con-sumption price index in Chinawould reach 1.5% in 2006.Prices ofconsumer commodities such aswater,power and natural gaswould rise and the pressure of in-flation would persist in the future."The time for using low-priceclean energies has gone forever,"said an expert from the Oil/Gas Di-vision of NDRC(the National De-velopment and
