Worldwide, large studies have shown that the menopause is mainly associated with substantial changes in body composition that result in an increase in waist circumference, fat accumulation and specially weight gain. T...Worldwide, large studies have shown that the menopause is mainly associated with substantial changes in body composition that result in an increase in waist circumference, fat accumulation and specially weight gain. This overweight could be exacerbated by fat intake. Thus, this study was planned to evaluate the impact of the consumption of olive and argane oils on anthropometric profile and body composition of postmenopausal women. The nutritional intervention was conducted over a period of eight weeks, involving daily consumption of 25 mL of argane oil The anthropometric profile （weight, height and body mass index or olive oil in 151 postmenopausal women （55.49 ± 6.18 years old）. （BMI）） and body composition （fat mass （FM） and lean mass （LM）） were determined at 0 week （baseline）, and after the 4th and 8th weeks of nutritional intervention. Results clearly demonstrated that argane oil or olive oil consumption did not affect the anthropometric parameters and the body composition of postmenopausal women. Thus, argane and/or olive oils＇ regular diet does not lead to weight gain, and postmenopausal women could benefit from their impact on health for a better quality of life and to overcome all menopause associated problems. A longer period of nutritional intervention is required to confirm the trend down that was recorded.展开更多
A nonlinear model of anti-backlash gear with time-varying friction and mesh stiffness was proposed for the further study on dynamic characteristics of anti-backlash gear. In order to improve the model precision, appli...A nonlinear model of anti-backlash gear with time-varying friction and mesh stiffness was proposed for the further study on dynamic characteristics of anti-backlash gear. In order to improve the model precision, applied force analysis was completed in detail, and single or double tooth meshing states of two gear pairs at any timing were determined according to the meshing characteristic of anti-backlash gear. The influences of friction and variations of damping ratio on dynamic transmission error were analyzed finally by numerical calculation and the results show that anti-backlash gear can increase the composite mesh stiffness comparing with the mesh stiffness of the normal gear pair. At the pitch points where the frictions change their signs, additional impulsive effects are observed. The width of impulsive in the same value of center frequency is wider than that without friction, and the amplitude is lower. When gear pairs mesh in and out, damping can reduce the vibration and impact.展开更多
The mechanism of the staple yarn's drafting waves during roller drafting is analyzed in this paper.It's concluded that the dynamic friction coefficient is greater than the static friction coefficient on the fr...The mechanism of the staple yarn's drafting waves during roller drafting is analyzed in this paper.It's concluded that the dynamic friction coefficient is greater than the static friction coefficient on the friction behavior of fibers,and the difference is largely responsible for the "stick-slip" motion of fibers which causes the drafting waves during drafting.In this paper,it's expected that when a high frequency undulating wave is imposed on the fiber strand in the drafting zone of roller system,the friction among fibers is dominated by the dynamic friction rather than the static friction,and thus the "stick-slip" motion will be eliminated.As a result,the fiber binding effect causing drafting waves can be significantly reduced.This hypothesis is verified by an experiment,and it can be applied in developing new spinning drafting device.展开更多
Objective：To observe the clinical effects of tuina plus Western medication for functional dyspepsia （FD） due to liver qi stagnation and spleen deficiency.Methods：A total of 72 patients in conformity with the inclu...Objective：To observe the clinical effects of tuina plus Western medication for functional dyspepsia （FD） due to liver qi stagnation and spleen deficiency.Methods：A total of 72 patients in conformity with the inclusion criteria of FD were randomly divided into an observation group and a control group based upon the random number table,36 cases in each group.The control group was treated with mosapride citrate dispersible tablets,and the observation group was treated with the same tablets plus tuina.Before the treatment and 4 weeks after the treatment,the clinical symptoms,quality of life （QOL） and depression severity were observed by the scale,and were followed up two months later after the treatment for assessment of the clinical effects.Results：After the treatment and at the follow-up,the symptom scores of FD and the sores of Hamilton depression rating scale （HAMD） in both groups decreased,and the scores in Chinese version of quality of life questionnaire for functional digestive disorders （Chin-FDDQL） increased,with statistically significant differences in comparison with the same group before the treatment （all P〈0.05）.In comparison between the two groups at the same time point after the treatment,the scores of FD symptoms,HAMD and Chin-FDDQL were improved better in the observation group than those in the control group,with statistically significant differences （all P〈0.05）.The total effective rates at the follow-up were 91.7% in the observation group and 75.0% in the control group,without statistical difference between the two groups （P〉0.05）.The rate of clinical cure and remarkable effect was 66.7% in the observation group,higher than 41.7% in the control group,it is higher in the observation group than that in the control group,with a statistically significant difference between the two groups （P〈0.05）.Conclusion：Tuina plus Western medication is precise in the therapeutic effects for FD due to liver qi stagnation and spleen deficiency and can effectively relieve clinical symptoms,elevate the QOL and alleviate depression severity of the patients.Moreover,it＇s better than the treatment by Western medication alone in the long-term therapeutic effects.展开更多
Objective:To evaluate the effectiveness of therapeutic massage(tuina)for treating knee osteoarthritis(KOA).Methods:Six English and Chinese databases,including Chinese National Knowledge Infrastructure(CNKI),Wanfang Ac...Objective:To evaluate the effectiveness of therapeutic massage(tuina)for treating knee osteoarthritis(KOA).Methods:Six English and Chinese databases,including Chinese National Knowledge Infrastructure(CNKI),Wanfang Academic Journal Full-text Database(Wanfang),Chongqing VIP Database(CQV1P),China Biology Medicine Disc(CBM),Cochrane Library and PubMed databases,were independently searched to identify appropriate randomized controlled trials(RCTs)studying therapeutic massage for KOA compared to oral non-steroidal anti-inflammatory drugs(NSAlDs)alone.The main outcome measures were total effectiveness and the Western Ontario and McMaster Universities osteoarthritis index(WOMAC)score.Results:A total of 8 RCTs were included and they were of average quality.The results showed that therapeutic massage was more effective than NSAlDs comparing total effectiveness[risk ratio(RR)=1.14,95%confidence interval(CI)(1.07,1.21),P<0.0001];compared with NSAlDs,therapeutic massage produced more significant improvements in pain[mean difference(MD)=-2.06,95%CI(-2.75,-1.36),P<0.00001],stiffness intensity[MD=-0.90,95%CI(-1.05,-0.75),P<0.00001]and joint function[MD=-12.48/95%CI(-13.91,-11.05),P<0.00001].Con elusion:Therapeutic massage was more effective than oral NSAlDs in treati ng KOA.In relieving pain and stiffness and improving the function of knee joint,therapeutic massage was superior to NSAIDs.展开更多
Three novel triphenylamine-based D-A-r-A-featured dyes （Zl-Z3） have been designed, synthesized and characterized for use in dye-sensitized solar cells. Benzothiazole was incorporated as an additional acceptor, which...Three novel triphenylamine-based D-A-r-A-featured dyes （Zl-Z3） have been designed, synthesized and characterized for use in dye-sensitized solar cells. Benzothiazole was incorporated as an additional acceptor, which greatly enhanced the molar ex- tinction coefficient of the dyes. Various conjugated linkers, such as benzene, furan and thiophene, were also introduced to con- figure the novel D-A-n-A framework in order to prolong electron flow and active transportation. Among all dyes, Z2 contain- ing a thiophene linker exhibited the maximum overall conversion efficiency （r/） of 4.16% （Jsc = 9.27 mA cm-2, Voc = 642 mV, FF = 0.70） under standard global AM 1.5 G solar condition.展开更多
Objective： To observe the clinical efficacy of massage therapy and Cisapride in the treatment of functional dyspepsia （FD）. Methods： Eighty subjects were randomized into two groups： treatment group in which 40 ca...Objective： To observe the clinical efficacy of massage therapy and Cisapride in the treatment of functional dyspepsia （FD）. Methods： Eighty subjects were randomized into two groups： treatment group in which 40 cases were treated by massage therapy and control group in which 40 cases were treated by Cisapride, with a course of 4 weeks; meanwhile, another 40 healthy people were taken as normal group. Abdominal fullness, acid regurgitation, diminished appetite and anorexia, nausea and vomiting and health survey were observed; symptom scores were recorded. Results： These two treatment methods were effective for FD. Conclusion： Mental disorder is one cause of FD; massage therapy is quite effective for it.展开更多
Photochemical and thermal isomerization of various azobenzenes was systematically investigated to understand the correlation between the molecular structure and trans → cis isomerization characteristics of azobenzene...Photochemical and thermal isomerization of various azobenzenes was systematically investigated to understand the correlation between the molecular structure and trans → cis isomerization characteristics of azobenzenes. A blue shift in π-π absorption band of ortho-alkylated azobenzenes （1o and 2o） was observed together with a reduction in molar extinction coefficient （e） in comparison with both meta-alkylated azobenzenes （4m and 5m） and 7p lacking the meta and ortho substituents. For orthoalkylated azobenzene, photochemical trans-to-cis isomerization and thermal back cis-to-trans isomerization in solution oc- curred slowly when compared with 4m, 5m and 7p. The half-life time of the cis form of 20 was found to be 380 h, which is about 8-50 times longer than those of comparable 4m, 5m （43-13 h） and 7p （7 h）. Furthermore, comparison of the molecular structure and isomerization characteristics of azobenzene thiol （20 and 5m） self-assembled monolayers on flat gold surfaces indicates that the trans-to-cis photoconversion in monolayer systems is influenced by steric hindrance and strong intermoleculax interaction between azobenzene units.展开更多
文摘Worldwide, large studies have shown that the menopause is mainly associated with substantial changes in body composition that result in an increase in waist circumference, fat accumulation and specially weight gain. This overweight could be exacerbated by fat intake. Thus, this study was planned to evaluate the impact of the consumption of olive and argane oils on anthropometric profile and body composition of postmenopausal women. The nutritional intervention was conducted over a period of eight weeks, involving daily consumption of 25 mL of argane oil The anthropometric profile （weight, height and body mass index or olive oil in 151 postmenopausal women （55.49 ± 6.18 years old）. （BMI）） and body composition （fat mass （FM） and lean mass （LM）） were determined at 0 week （baseline）, and after the 4th and 8th weeks of nutritional intervention. Results clearly demonstrated that argane oil or olive oil consumption did not affect the anthropometric parameters and the body composition of postmenopausal women. Thus, argane and/or olive oils＇ regular diet does not lead to weight gain, and postmenopausal women could benefit from their impact on health for a better quality of life and to overcome all menopause associated problems. A longer period of nutritional intervention is required to confirm the trend down that was recorded.
基金Project(51175505)supported by the National Natural Science Foundation of China
文摘A nonlinear model of anti-backlash gear with time-varying friction and mesh stiffness was proposed for the further study on dynamic characteristics of anti-backlash gear. In order to improve the model precision, applied force analysis was completed in detail, and single or double tooth meshing states of two gear pairs at any timing were determined according to the meshing characteristic of anti-backlash gear. The influences of friction and variations of damping ratio on dynamic transmission error were analyzed finally by numerical calculation and the results show that anti-backlash gear can increase the composite mesh stiffness comparing with the mesh stiffness of the normal gear pair. At the pitch points where the frictions change their signs, additional impulsive effects are observed. The width of impulsive in the same value of center frequency is wider than that without friction, and the amplitude is lower. When gear pairs mesh in and out, damping can reduce the vibration and impact.
基金National Natural Science Foundation of China(No.50775034)
文摘The mechanism of the staple yarn's drafting waves during roller drafting is analyzed in this paper.It's concluded that the dynamic friction coefficient is greater than the static friction coefficient on the friction behavior of fibers,and the difference is largely responsible for the "stick-slip" motion of fibers which causes the drafting waves during drafting.In this paper,it's expected that when a high frequency undulating wave is imposed on the fiber strand in the drafting zone of roller system,the friction among fibers is dominated by the dynamic friction rather than the static friction,and thus the "stick-slip" motion will be eliminated.As a result,the fiber binding effect causing drafting waves can be significantly reduced.This hypothesis is verified by an experiment,and it can be applied in developing new spinning drafting device.
文摘Objective：To observe the clinical effects of tuina plus Western medication for functional dyspepsia （FD） due to liver qi stagnation and spleen deficiency.Methods：A total of 72 patients in conformity with the inclusion criteria of FD were randomly divided into an observation group and a control group based upon the random number table,36 cases in each group.The control group was treated with mosapride citrate dispersible tablets,and the observation group was treated with the same tablets plus tuina.Before the treatment and 4 weeks after the treatment,the clinical symptoms,quality of life （QOL） and depression severity were observed by the scale,and were followed up two months later after the treatment for assessment of the clinical effects.Results：After the treatment and at the follow-up,the symptom scores of FD and the sores of Hamilton depression rating scale （HAMD） in both groups decreased,and the scores in Chinese version of quality of life questionnaire for functional digestive disorders （Chin-FDDQL） increased,with statistically significant differences in comparison with the same group before the treatment （all P〈0.05）.In comparison between the two groups at the same time point after the treatment,the scores of FD symptoms,HAMD and Chin-FDDQL were improved better in the observation group than those in the control group,with statistically significant differences （all P〈0.05）.The total effective rates at the follow-up were 91.7% in the observation group and 75.0% in the control group,without statistical difference between the two groups （P〉0.05）.The rate of clinical cure and remarkable effect was 66.7% in the observation group,higher than 41.7% in the control group,it is higher in the observation group than that in the control group,with a statistically significant difference between the two groups （P〈0.05）.Conclusion：Tuina plus Western medication is precise in the therapeutic effects for FD due to liver qi stagnation and spleen deficiency and can effectively relieve clinical symptoms,elevate the QOL and alleviate depression severity of the patients.Moreover,it＇s better than the treatment by Western medication alone in the long-term therapeutic effects.
文摘Objective:To evaluate the effectiveness of therapeutic massage(tuina)for treating knee osteoarthritis(KOA).Methods:Six English and Chinese databases,including Chinese National Knowledge Infrastructure(CNKI),Wanfang Academic Journal Full-text Database(Wanfang),Chongqing VIP Database(CQV1P),China Biology Medicine Disc(CBM),Cochrane Library and PubMed databases,were independently searched to identify appropriate randomized controlled trials(RCTs)studying therapeutic massage for KOA compared to oral non-steroidal anti-inflammatory drugs(NSAlDs)alone.The main outcome measures were total effectiveness and the Western Ontario and McMaster Universities osteoarthritis index(WOMAC)score.Results:A total of 8 RCTs were included and they were of average quality.The results showed that therapeutic massage was more effective than NSAlDs comparing total effectiveness[risk ratio(RR)=1.14,95%confidence interval(CI)(1.07,1.21),P<0.0001];compared with NSAlDs,therapeutic massage produced more significant improvements in pain[mean difference(MD)=-2.06,95%CI(-2.75,-1.36),P<0.00001],stiffness intensity[MD=-0.90,95%CI(-1.05,-0.75),P<0.00001]and joint function[MD=-12.48/95%CI(-13.91,-11.05),P<0.00001].Con elusion:Therapeutic massage was more effective than oral NSAlDs in treati ng KOA.In relieving pain and stiffness and improving the function of knee joint,therapeutic massage was superior to NSAIDs.
基金supported by the National Natural Science Foundation of China (20872038, 20873183, 21072064)the Fund from Guangzhou Science and Technology Project, China (2012J4100003)
文摘Three novel triphenylamine-based D-A-r-A-featured dyes （Zl-Z3） have been designed, synthesized and characterized for use in dye-sensitized solar cells. Benzothiazole was incorporated as an additional acceptor, which greatly enhanced the molar ex- tinction coefficient of the dyes. Various conjugated linkers, such as benzene, furan and thiophene, were also introduced to con- figure the novel D-A-n-A framework in order to prolong electron flow and active transportation. Among all dyes, Z2 contain- ing a thiophene linker exhibited the maximum overall conversion efficiency （r/） of 4.16% （Jsc = 9.27 mA cm-2, Voc = 642 mV, FF = 0.70） under standard global AM 1.5 G solar condition.
文摘Objective： To observe the clinical efficacy of massage therapy and Cisapride in the treatment of functional dyspepsia （FD）. Methods： Eighty subjects were randomized into two groups： treatment group in which 40 cases were treated by massage therapy and control group in which 40 cases were treated by Cisapride, with a course of 4 weeks; meanwhile, another 40 healthy people were taken as normal group. Abdominal fullness, acid regurgitation, diminished appetite and anorexia, nausea and vomiting and health survey were observed; symptom scores were recorded. Results： These two treatment methods were effective for FD. Conclusion： Mental disorder is one cause of FD; massage therapy is quite effective for it.
基金supported by the Global COE Program from the Ministry of Education,Culture,Sports,Science,and Technology of Japanese Government
文摘Photochemical and thermal isomerization of various azobenzenes was systematically investigated to understand the correlation between the molecular structure and trans → cis isomerization characteristics of azobenzenes. A blue shift in π-π absorption band of ortho-alkylated azobenzenes （1o and 2o） was observed together with a reduction in molar extinction coefficient （e） in comparison with both meta-alkylated azobenzenes （4m and 5m） and 7p lacking the meta and ortho substituents. For orthoalkylated azobenzene, photochemical trans-to-cis isomerization and thermal back cis-to-trans isomerization in solution oc- curred slowly when compared with 4m, 5m and 7p. The half-life time of the cis form of 20 was found to be 380 h, which is about 8-50 times longer than those of comparable 4m, 5m （43-13 h） and 7p （7 h）. Furthermore, comparison of the molecular structure and isomerization characteristics of azobenzene thiol （20 and 5m） self-assembled monolayers on flat gold surfaces indicates that the trans-to-cis photoconversion in monolayer systems is influenced by steric hindrance and strong intermoleculax interaction between azobenzene units.
