Objective:This study aimed to explore the relationship between uncertainty in illness,state anxiety,and the life satisfaction of college students during the COVID-19 epidemic.Methods:A cluster random sampling method w...Objective:This study aimed to explore the relationship between uncertainty in illness,state anxiety,and the life satisfaction of college students during the COVID-19 epidemic.Methods:A cluster random sampling method was employed to select a total of 1522 college students from seven universities in China.The uncertainty in illness scale,state anxiety scale,and life satisfaction scale were used.Results:Uncertainty in illness had a negative effect on life satisfaction.Uncertainty in illness had a positive effect on state anxiety.State anxiety had a negative effect on life satisfaction.State anxiety played an important mediating role in the relationship between uncertainty in illness and life satisfaction-its mediating effect accounted for 17.43%of the total effect.Conclusion:A simple mediation model revealed that uncertainty in illness exerts influence both directly on life satisfaction and indirectly via state anxiety.Based upon these elucidated examples,several countermeasures and suggestions for life satisfaction are proposed.展开更多
Background: Rubella is an infectious disease of public health importance because infection ac-quired during early pregnancy often results in foetal abnormalities that are classified as con-genital rubella syndrome (CR...Background: Rubella is an infectious disease of public health importance because infection ac-quired during early pregnancy often results in foetal abnormalities that are classified as con-genital rubella syndrome (CRS). The burden of rubella infection in most developing countries is however not well documented because of lim-ited epidemiological data. Methods: Between 2006 and 2009, 781individuals with febrile rash illness seen in clinics in Akwa Ibom State were screened for rubella specific IgM antibodies using the ELISA technique. Statistical analysis was done using Graph prime version 5.3 statis-tical package at 95% confidence interval. The level of significance was established at P = 0.05 using Fisher’s exact two-tailed values. Results: Of 781 individuals screened for rubella specific IgM antibodies, 94 (12%) were found to be posi-tive. Incidence of 8.7% recorded in 2006 gradu-ally rose to 9.3% in 2007, 11.6% in 2008 and 14.3% in 2009. Those in the reproductive age group (> 16 years) were most affected (51.7%). However, this was not statistically significant (P = 0.228). Females (17.4%) were more suscepti-ble than males (6.2%) (P < 0.0001) an rural dwellers (12.8%) more susceptible than urban dwellers (10.5%) (P = 0.416). Conclusion: The study shows that the incidence of rubella in Akwa Ibom State, Nigeria is high. The lowest incidence was however found among individu-als below the reproductive age. Thus, the find-ings of this study can be used by policy makers to model the introduction of routine rubella vaccination into the country’ Expanded Program on Immunization Schedule (EPI).展开更多
Objective:To investigate the relationship between uncertainty in illness,mood state and coping style in patients with temporomandibular disorders(TMD)in the hospital,in order to identify nursing measures.Methods:Chine...Objective:To investigate the relationship between uncertainty in illness,mood state and coping style in patients with temporomandibular disorders(TMD)in the hospital,in order to identify nursing measures.Methods:Chinese versions of the Mishel Uncertainty In Illness Scale(MUIS),Brief Profile Of Mood States(BPOMS)and Medical Coping Modes Questionnaire(MCMQ)were used to assess uncertainty in illness,mood state and coping style,respectively,in 126 patients with TMD.Results:The total score of uncertainty in illness of the patients was 91.33±16.38,which was at middle level.The total score of mood state was 37.93±17.0.The order of coping style rated from high to low was confrontation(18.81±3.65),avoidance(15.44±4.26)and acceptance(10.41±5.04).Acceptance was positively correlated with uncertainty in illness(r=0.463,p<0.001),and mood state(r=0.187,p<0.05).Avoidance and confrontation were negatively correlated with uncertainty in illness and mood state(r=0.286,p<0.01),(r=0.175,p<0.05),(r=0.171,p<0.05),(r=0.221,p<0.01).Conclusions:Both uncertainty in illness and mood state were related to coping style.These data suggest that nurses should be trained to offer appropriate guidance to help decrease patients'uncertainty in illness and relieve their negative emotions.展开更多
The method of condition number is commonly used to diagnose a normal matrix N whether it is ill conditioned state or not. For its shortcoming, a method to measure multi collinearity of a matrix was put forward. The me...The method of condition number is commonly used to diagnose a normal matrix N whether it is ill conditioned state or not. For its shortcoming, a method to measure multi collinearity of a matrix was put forward. The method is that implement Gram Schmidt orthogonalizing process to column vectors of a design matrix A (α l ), then calculate the norms of every vector before and after orthogonalization process and their corresponding ratio, and use the minimum ratio among the group of ratios to measure the multi collinearity of A. According to the corresponding relationship between the multi collinearity and the ill conditioned state of a matrix, the method also studies and offers reference indexes weighing the ill conditioned state of a matrix based on the relative norm. The remarkable characteristics of the method are that the measure of multi collinearity has idiographic geometry meaning and clear lower and upper limit, the size of the measure reflects the multi collinearity of column vectors objectively. It is convenient to study the reason that results in the matrix being multi collinearity and to put forward solving plan according to the method which is summarized as the method of minimum norm and abbreviated as F method.展开更多
Objective:To investigate the effects of different follow-up systems in China and Germany on ventilator therapy in patients with obstructive sleep apnea syndrome.Method:From March 2013 to October 2015,three hundred pat...Objective:To investigate the effects of different follow-up systems in China and Germany on ventilator therapy in patients with obstructive sleep apnea syndrome.Method:From March 2013 to October 2015,three hundred patients with moderate to severe obstructive sleep apnea syndrome and those who are suitable for ventilator treatment were followed up according to the follow-up system of both China and Germany.The follow-up was carried out for one year to compare the rate of loss to follow-up,ventilator therapy compliance,treatment effect,ventilator side effects and others in the two groups of patients.Statistical analysis was performed using x2 test,P<0.05 for the difference was statistically significant.Results:The rate of loss to follow-up in the German group was lower than that in the Chinese group.The compliance of the German group with respiratory therapy was lower than that of the Chinese group.The side effects of ventilator treatment were lower than those in the Chinese group(P<0.05).Conclusion:The German follow-up system is more effective than the Chinese follow-up system in improving the compliance and effectiveness of ventilator therapy in patients with obstructive sleep apnea syndrome.展开更多
In this paper, swarm optimization hybridized with differential evolution (PSO-DE) technique is proposed to solve static state estimation (SE) problem as a minimization problem. The proposed hybrid method is tested on ...In this paper, swarm optimization hybridized with differential evolution (PSO-DE) technique is proposed to solve static state estimation (SE) problem as a minimization problem. The proposed hybrid method is tested on IEEE 5-bus, 14-bus, 30-bus, 57-bus and 118-bus standard test systems along with 11-bus and 13-bus ill-conditioned test systems under different simulated conditions and the results are compared with the same, obtained using standard weighted least square state estimation (WLS-SE) technique and general particle swarm optimization (GPSO) based technique. The performance of the proposed optimization technique for SE, in terms of minimum value of the objective function and standard deviations of minimum values obtained in 100 runs, is found better as compared to the GPSO based technique. The statistical error analysis also shows the superiority of the proposed PSO-DE based technique over the other two techniques.展开更多
基金the Primary Health Development Research Center of Sichuan ProvinceProgram(SWFZ20-Q-041)the Sichuan Research Center for Applied Psychology Program (CSXL-202A01)the Sichuan Research Center for Mental Health Education Program(XLJKJY2004B).
文摘Objective:This study aimed to explore the relationship between uncertainty in illness,state anxiety,and the life satisfaction of college students during the COVID-19 epidemic.Methods:A cluster random sampling method was employed to select a total of 1522 college students from seven universities in China.The uncertainty in illness scale,state anxiety scale,and life satisfaction scale were used.Results:Uncertainty in illness had a negative effect on life satisfaction.Uncertainty in illness had a positive effect on state anxiety.State anxiety had a negative effect on life satisfaction.State anxiety played an important mediating role in the relationship between uncertainty in illness and life satisfaction-its mediating effect accounted for 17.43%of the total effect.Conclusion:A simple mediation model revealed that uncertainty in illness exerts influence both directly on life satisfaction and indirectly via state anxiety.Based upon these elucidated examples,several countermeasures and suggestions for life satisfaction are proposed.
文摘Background: Rubella is an infectious disease of public health importance because infection ac-quired during early pregnancy often results in foetal abnormalities that are classified as con-genital rubella syndrome (CRS). The burden of rubella infection in most developing countries is however not well documented because of lim-ited epidemiological data. Methods: Between 2006 and 2009, 781individuals with febrile rash illness seen in clinics in Akwa Ibom State were screened for rubella specific IgM antibodies using the ELISA technique. Statistical analysis was done using Graph prime version 5.3 statis-tical package at 95% confidence interval. The level of significance was established at P = 0.05 using Fisher’s exact two-tailed values. Results: Of 781 individuals screened for rubella specific IgM antibodies, 94 (12%) were found to be posi-tive. Incidence of 8.7% recorded in 2006 gradu-ally rose to 9.3% in 2007, 11.6% in 2008 and 14.3% in 2009. Those in the reproductive age group (> 16 years) were most affected (51.7%). However, this was not statistically significant (P = 0.228). Females (17.4%) were more suscepti-ble than males (6.2%) (P < 0.0001) an rural dwellers (12.8%) more susceptible than urban dwellers (10.5%) (P = 0.416). Conclusion: The study shows that the incidence of rubella in Akwa Ibom State, Nigeria is high. The lowest incidence was however found among individu-als below the reproductive age. Thus, the find-ings of this study can be used by policy makers to model the introduction of routine rubella vaccination into the country’ Expanded Program on Immunization Schedule (EPI).
文摘Objective:To investigate the relationship between uncertainty in illness,mood state and coping style in patients with temporomandibular disorders(TMD)in the hospital,in order to identify nursing measures.Methods:Chinese versions of the Mishel Uncertainty In Illness Scale(MUIS),Brief Profile Of Mood States(BPOMS)and Medical Coping Modes Questionnaire(MCMQ)were used to assess uncertainty in illness,mood state and coping style,respectively,in 126 patients with TMD.Results:The total score of uncertainty in illness of the patients was 91.33±16.38,which was at middle level.The total score of mood state was 37.93±17.0.The order of coping style rated from high to low was confrontation(18.81±3.65),avoidance(15.44±4.26)and acceptance(10.41±5.04).Acceptance was positively correlated with uncertainty in illness(r=0.463,p<0.001),and mood state(r=0.187,p<0.05).Avoidance and confrontation were negatively correlated with uncertainty in illness and mood state(r=0.286,p<0.01),(r=0.175,p<0.05),(r=0.171,p<0.05),(r=0.221,p<0.01).Conclusions:Both uncertainty in illness and mood state were related to coping style.These data suggest that nurses should be trained to offer appropriate guidance to help decrease patients'uncertainty in illness and relieve their negative emotions.
文摘The method of condition number is commonly used to diagnose a normal matrix N whether it is ill conditioned state or not. For its shortcoming, a method to measure multi collinearity of a matrix was put forward. The method is that implement Gram Schmidt orthogonalizing process to column vectors of a design matrix A (α l ), then calculate the norms of every vector before and after orthogonalization process and their corresponding ratio, and use the minimum ratio among the group of ratios to measure the multi collinearity of A. According to the corresponding relationship between the multi collinearity and the ill conditioned state of a matrix, the method also studies and offers reference indexes weighing the ill conditioned state of a matrix based on the relative norm. The remarkable characteristics of the method are that the measure of multi collinearity has idiographic geometry meaning and clear lower and upper limit, the size of the measure reflects the multi collinearity of column vectors objectively. It is convenient to study the reason that results in the matrix being multi collinearity and to put forward solving plan according to the method which is summarized as the method of minimum norm and abbreviated as F method.
文摘Objective:To investigate the effects of different follow-up systems in China and Germany on ventilator therapy in patients with obstructive sleep apnea syndrome.Method:From March 2013 to October 2015,three hundred patients with moderate to severe obstructive sleep apnea syndrome and those who are suitable for ventilator treatment were followed up according to the follow-up system of both China and Germany.The follow-up was carried out for one year to compare the rate of loss to follow-up,ventilator therapy compliance,treatment effect,ventilator side effects and others in the two groups of patients.Statistical analysis was performed using x2 test,P<0.05 for the difference was statistically significant.Results:The rate of loss to follow-up in the German group was lower than that in the Chinese group.The compliance of the German group with respiratory therapy was lower than that of the Chinese group.The side effects of ventilator treatment were lower than those in the Chinese group(P<0.05).Conclusion:The German follow-up system is more effective than the Chinese follow-up system in improving the compliance and effectiveness of ventilator therapy in patients with obstructive sleep apnea syndrome.
文摘In this paper, swarm optimization hybridized with differential evolution (PSO-DE) technique is proposed to solve static state estimation (SE) problem as a minimization problem. The proposed hybrid method is tested on IEEE 5-bus, 14-bus, 30-bus, 57-bus and 118-bus standard test systems along with 11-bus and 13-bus ill-conditioned test systems under different simulated conditions and the results are compared with the same, obtained using standard weighted least square state estimation (WLS-SE) technique and general particle swarm optimization (GPSO) based technique. The performance of the proposed optimization technique for SE, in terms of minimum value of the objective function and standard deviations of minimum values obtained in 100 runs, is found better as compared to the GPSO based technique. The statistical error analysis also shows the superiority of the proposed PSO-DE based technique over the other two techniques.
