Teaching and training through online tools were used by most Higher Education Institute(HEIs)worldwide during COVID-19 to cater to the needs of students who stay far away from educational institutions.After the pandem...Teaching and training through online tools were used by most Higher Education Institute(HEIs)worldwide during COVID-19 to cater to the needs of students who stay far away from educational institutions.After the pandemic,the virtual model of education and training became a trend.The students and teachers are also more used to this trend which is giving more opportunities to both learners and instructors.One of the notable benefits of virtual teaching and learning platform is that it provides a flexible environment to gain knowledge,skills,and attitude simultaneously along with formal off-line education.From the earlier studies it is found that the majority of studies have focused on traditional,offline training methods and only a few studies have focused on virtual training.Therefore,the present study examined the effectiveness of virtual training using the Kirkpatrick model.For this purpose,a research instrument based on the Kirkpatrick model was constructed and distributed among the UG and PG students in Mangalore City.A total of 143 responses were collected,of which 132 were completed responses and all of them were considered for analysis.Descriptive statistics and one sample t-test are employed to analyse and interpret the data.The findings revealed that virtual training is more effective compared to traditional and offline training methods.Henceforth,the training and education provided through virtual platforms made significant contributions to the employability of youngsters.展开更多
The specialty of cardiovascular surgical nursing has advanced patient care significantly both before and after surgery, and it is now a well-established field. The primary goal of cardiovascular surgical nursing is to...The specialty of cardiovascular surgical nursing has advanced patient care significantly both before and after surgery, and it is now a well-established field. The primary goal of cardiovascular surgical nursing is to optimize the patient's recovery and prevent complications. Immediate nursing care for post-operative cardiac patients in a state of controlled shock due to fluid shift and varying vascular tone. Aim of the Study: Assessment of nurse’s knowledge and performance after the training program of nursing care immediately after a patient arrives from cardiac surgery. Methods: This pre and post-intervention study was conducted at cardiac centers in Sudan Alshaab and Ahmed Gasim Cardiac Center. The aim of the study was to evaluate the impact on nurses’ performance after training program post open-heart surgery. In the initial phase of the study, all 98 nurses working in the intensive care units at Alshaab and Ahmed Gasim cardiac centers were designated as the study group and evaluated before the intervention. Subsequently, the same group was reassessed after the intervention (phase 2), allowing for a comparison of the pre- and post-intervention results. The assessment involved the use of a specifically designed questionnaire and an observation checklist developed in accordance with the standards recommended by the American Nurses Association (phase 3). Result: Descriptive analysis was performed using the Chi-square test, the difference in the performance between the study group before intervention and after the intervention was assessed by the mean of chi-square significantly was taken as p < 0.05.展开更多
In order to study the treatment of the children with attention deficit hyperactivity disorder (ADHD), the integrated visual and auditory continuous performance test (IVA-CPT) was clinically applied to evaluate the eff...In order to study the treatment of the children with attention deficit hyperactivity disorder (ADHD), the integrated visual and auditory continuous performance test (IVA-CPT) was clinically applied to evaluate the effectiveness of electroencephalogram (EEG) biofeedback training. Of all the 60 children with ADHD aged more than 6 years, the effective rate of EEG biofeedback training was 91.6 % after 40 sessions of EEG biofeedback training. Before and after treatment by EEG biofeedback training, the overall indexes of IVA were significantly improved among predominately inattentive, hyperactive, and combined subtype of children with ADHD (P<0.001). It was suggested that EEG biofeedback training was an effective and vital treatment on children with ADHD.展开更多
On the basis of the essential connotation of the training effect on human resource development and the basic principles of setting up a index system, the evaluation index system of the training effect on human resourc...On the basis of the essential connotation of the training effect on human resource development and the basic principles of setting up a index system, the evaluation index system of the training effect on human resource development in enterprises has been established. It evaluates the training effect on human resource development with the method of fuzzy comprehensive evaluation and achieves better results. It also provides a scientific, practical and quantitative method for the systematic analysis and comprehensive evaluation of the training effect on human resource development.展开更多
Rural labor force transfer training is one of important poverty alleviation measures in China. This paper describes training participation situation and evaluates training effects by matching methods in the case of co...Rural labor force transfer training is one of important poverty alleviation measures in China. This paper describes training participation situation and evaluates training effects by matching methods in the case of coastal autonomous minority nationality areas of Yunnan province by using 2053 rural household data. The result shows that the average training participation from 2006 to 2008 is 26.39 percent. In addition, ATE is 18.33 percent, TT is 18.99 percent, TUT is 18.09 percent. And,TUT . It demonstrates that the rural labor force transfer training program is effective and well-directed in coastal autonomous minority nationality areas of Yunnan province of China.展开更多
A significant exchange bias(EB) training effect has been observed in sputter deposited FeAu/FeNi bilayers, wherein the exchange field(HE) exhibits a special sign-changeable temperature dependence. Very interestingly, ...A significant exchange bias(EB) training effect has been observed in sputter deposited FeAu/FeNi bilayers, wherein the exchange field(HE) exhibits a special sign-changeable temperature dependence. Very interestingly, despite the absence of multiple easy axes in the FeAu spin glass(SG) layer, HEdrops abruptly between the first and second magnetic cycles,which is followed by a more gradual continuous change in the subsequent cycles. This training behavior cannot be described by the empirical n-1/2law because of the asymmetric magnetization reversal processes. We propose modifying Binek's model to include the asymmetric changes of the pinning SG spins at the descending and ascending branches. This new model successfully describes the EB training effect in FeAu/FeNi bilayers.展开更多
The Effect of the thermal cycling training under constant strain on the two-way shape memory effect (TWSME) in a Ti36Ni49Hf15 high temperature shape memory alloy (SMA) has been investigated by bending tests. The resul...The Effect of the thermal cycling training under constant strain on the two-way shape memory effect (TWSME) in a Ti36Ni49Hf15 high temperature shape memory alloy (SMA) has been investigated by bending tests. The results indicated that the training procedure is beneficial to get the better TWSME. The two-way shape memory strain increases with increasing the training strain. And it decreases with increasing the training temperature. The TWSME obtained in the present alloy shows poorer stability compared with that obtained in the TiNi alloys.展开更多
Objective To evaluate the training course effects on integrated sexual and reproduc- tive health (SRH) counseling, so as to improve family planning providers’ capacities of SRH counseling. Methods The SRH training co...Objective To evaluate the training course effects on integrated sexual and reproduc- tive health (SRH) counseling, so as to improve family planning providers’ capacities of SRH counseling. Methods The SRH training course was conducted by using new curriculum and participatory training methods. The purpose was meeting the SRH needs of clients. Evaluations were done by pre- and post-training questionnaires to trainees. Results The average total scores of trainees were 54.9 before trained and 83.4 after trained respectively. As to trainees’ self evaluation of the capacities, the capacity for comfortably discussing sexuality and related issues with clients increased from 9.9% to 90.7%, the capacity for helping clients to understand their sexual risk factors increased from 12.5% to 92.2%, the capacity for helping clients assessing their own needs for SRH services, information and emotional support increased from 16.0% to 87.8%, and the capacity for helping clients to develop negotiation and communica- tion skills increased from 12.0% to 86.0%. Conclusion The training course of integrated SRH counseling changed the tradi- tional training types and services concept of family planning service providers, and the trainees’ capacities of implementing integrated SRH counseling also improved very much.展开更多
On the basis of studying the influencing factors of training effect evaluation,this paper constructs an AHP-fuzzy comprehensive evaluation model for farmers’vocational training activities in Hainan Province to evalua...On the basis of studying the influencing factors of training effect evaluation,this paper constructs an AHP-fuzzy comprehensive evaluation model for farmers’vocational training activities in Hainan Province to evaluate farmers’training effect,which overcomes the limitations of traditional methods.Firstly,the content and index system of farmer training effect evaluation are established by analytic hierarchy process,and the weight value of each index is determined.Then,the fuzzy comprehensive evaluation(FCE)of farmer training effect is carried out by using multi-level FCE.The joint use of AHP and FCE improves the reliability and effectiveness of the evaluation process and results.The overall comprehensive evaluation result of the farmer training effect evaluation is“good”.展开更多
A randomized grouping experiment was conducted to study the effect of 8-week functional training on shooting performance of Beijing female handball players.According to the athletes’FMS(functional movement screening)...A randomized grouping experiment was conducted to study the effect of 8-week functional training on shooting performance of Beijing female handball players.According to the athletes’FMS(functional movement screening)scoring results,they were randomly divided into 2 groups.The experimental group adopted an 8-week functional training,aiming at strengthening their core strength,joint stability,and the power chain of shooting techniques.The control group adopted the traditional strength training mode.ANOVA(analysis of variance)was adopted to analyze the different performance of the athletes from two groups on their FMS scores,distances of throwing,and 7-meter shooting speed before and after the experiment.The results show that:(1)the total FMS scores of the experimental group athletes have been increased more significantly than those of the control group,and the injuries per capita has been significantly reduced;(2)the athletes in the experimental group have more significantly improved performance in handball throwing and 7-meter shooting speed than those in the control group.It shows that 8 weeks of functional training may effectively improve the physical function of Beijing female handball players and their performance in two special skills of handball throwing and shooting speed.展开更多
Cross-training is a phenomenon related to motor learning, where motor performance of the untrained limb shows improvement in strength and skill execution following unilateral training of the homologous contralateral l...Cross-training is a phenomenon related to motor learning, where motor performance of the untrained limb shows improvement in strength and skill execution following unilateral training of the homologous contralateral limb. We used functional MRI to investigate whether motor performance of the untrained limb could be improved using a serial reaction time task according to motor sequential learning of the trained limb, and whether these skill acquisitions led to changes in brain activation patterns. We recruited 20 right-handed healthy subjects, who were randomly allocated into training and control groups. The training group was trained in performance of a serial reaction time task using their non-dominant left hand, 40 minutes per day, for 10 days, over a period of 2 weeks. The control group did not receive training. Measurements of response time and percentile of response accuracy were performed twice during pre- and post-training, while brain functional MRI was scanned during performance of the serial reaction time task using the untrained right hand. In the training group, prominent changes in response time and percentile of response accuracy were observed in both the untrained right hand and the trained left hand between pre- and post-training. The control group showed no significant changes in the untrained hand between pre- and post-training. In the training group, the activated volume of the cortical areas related to motor function (i.e., primary motor cortex, premotor area, posterior parietal cortex) showed a gradual decrease, and enhanced cerebellar activation of the vermis and the newly activated ipsilateral dentate nucleus were observed during performance of the serial reaction time task using the untrained right hand, accompanied by the cross-motor learning effect. However, no significant changes were observed in the control group. Our findings indicate that motor skills learned over the 2-week training using the trained limb were transferred to the opposite homologous limb, and motor skill acquisition of the untrained limb led to changes in brain activation patterns in the cerebral cortex and cerebellum.展开更多
The accuracy of laser-induced breakdown spectroscopy(LIBS) quantitative method is greatly dependent on the amount of certified standard samples used for training. However, in practical applications, only limited stand...The accuracy of laser-induced breakdown spectroscopy(LIBS) quantitative method is greatly dependent on the amount of certified standard samples used for training. However, in practical applications, only limited standard samples with labeled certified concentrations are available. A novel semi-supervised LIBS quantitative analysis method is proposed, based on co-training regression model with selection of effective unlabeled samples. The main idea of the proposed method is to obtain better regression performance by adding effective unlabeled samples in semisupervised learning. First, effective unlabeled samples are selected according to the testing samples by Euclidean metric. Two original regression models based on least squares support vector machine with different parameters are trained by the labeled samples separately, and then the effective unlabeled samples predicted by the two models are used to enlarge the training dataset based on labeling confidence estimation. The final predictions of the proposed method on the testing samples will be determined by weighted combinations of the predictions of two updated regression models. Chromium concentration analysis experiments of 23 certified standard high-alloy steel samples were carried out, in which 5 samples with labeled concentrations and 11 unlabeled samples were used to train the regression models and the remaining 7 samples were used for testing. With the numbers of effective unlabeled samples increasing, the root mean square error of the proposed method went down from 1.80% to 0.84% and the relative prediction error was reduced from 9.15% to 4.04%.展开更多
Objective To evaluate the short-term effect of pelvic floor muscle rehabilitation training under the guidance of doctors on children with neuropathic acontractile sphincter incontinence ( NASI) . Methods Sixty-eighty ...Objective To evaluate the short-term effect of pelvic floor muscle rehabilitation training under the guidance of doctors on children with neuropathic acontractile sphincter incontinence ( NASI) . Methods Sixty-eighty children ( aged 4 - 12 mean,7) years with NASI展开更多
目的探究成果导向教育(Outcome Based Education,OBE)理论下TPA阶梯教学对神经科医师培训效果及教学满意度的影响。方法随机选取2020年5月—2023年5月潍坊医学院附属医院接受规范化培训的52名神经科医师为研究对象,于2020年5月—2021年1...目的探究成果导向教育(Outcome Based Education,OBE)理论下TPA阶梯教学对神经科医师培训效果及教学满意度的影响。方法随机选取2020年5月—2023年5月潍坊医学院附属医院接受规范化培训的52名神经科医师为研究对象,于2020年5月—2021年12月培训中采用传统教学法的26名医师为A组、于2022年1月—2023年5月培训中采用OBE理论下TPA阶梯教学的26名医师为B组,对比两组培训效果。结果教学后,B组理论考核成绩、实践能力考核成绩均高于A组,差异有统计学意义(P均<0.05);B组教学满意度(100.00%)高于A组(76.92%),差异有统计学意义(χ^(2)=4.710,P<0.05)。结论OBE理论下TPA阶梯教学的应用效果更理想,有助于提高神经科医师理论及实践能力考核成绩、教学满意度。展开更多
Starting from the extended nonlinear Schr¨odinger equation in which the self-steepening effect is included, the evolution and the splitting processes of continuous optical wave whose amplitude is perturbed into t...Starting from the extended nonlinear Schr¨odinger equation in which the self-steepening effect is included, the evolution and the splitting processes of continuous optical wave whose amplitude is perturbed into time related ultrashort optical pulse trains in an optical fibre are numerically simulated by adopting the split-step Fourier algorithm. The results show that the self-steepening effect can cause the characteristic of the pulse trains to vary with time, which is different from the self-steepening-free case where the generated pulse trains consist of single pulses which are identical in width, intensity, and interval, namely when pulses move a certain distance, they turn into the pulse trains within a certain time range. Moreover, each single pulse may split into several sub-pulses. And as time goes on, the number of the sub-pulses will decrease gradually and the pulse width and the pulse intensity will change too. With the increase of the self-steepening parameter, the distance needed to generate time-dependent pulse trains will shorten. In addition, for a large self-steepening parameter and at the distance where more sub-pulses appear, the corresponding frequency spectra of pulse trains are also wider.展开更多
Based on the conventional observation data,dual polarization radar data and NCEP reanalysis data,the large-scale circulation background field,mesoscale conditions and formation causes of a heavy rainstorm in Nanchang ...Based on the conventional observation data,dual polarization radar data and NCEP reanalysis data,the large-scale circulation background field,mesoscale conditions and formation causes of a heavy rainstorm in Nanchang on July 7,2020 were studied.It was found that this heavy rainstorm occurred under the weather background of the confrontation between the northward air flow behind the trough and the strong southwest warm and humid air flow to the northwest of the subtropical high.The divergence at the upper level,the shear in the middle and low levels,the southward movement of cold air at the low level,unusually abundant water vapor and high unstable energy caused the heavy rainstorm weather.In this process,under the influence of continuous eastward movement of several strong echo cells,an obvious"train effect"was formed in Nanchang,so that the local rainfall was continuous and intense.Moreover,the average of VIL was about 17 kg/m 2,and its variation characteristics were consistent with the variation trend of 5-min rainfall intensity,which had a certain indicator effect on short-term heavy precipitation.The topography of the Meiling Mountain in the west of Nanchang had a great influence on the formation and precipitation distribution of the heavy rain process.There was a strong rainstorm center near the mountain,and the precipitation was obviously larger than that in the plain area.展开更多
文摘Teaching and training through online tools were used by most Higher Education Institute(HEIs)worldwide during COVID-19 to cater to the needs of students who stay far away from educational institutions.After the pandemic,the virtual model of education and training became a trend.The students and teachers are also more used to this trend which is giving more opportunities to both learners and instructors.One of the notable benefits of virtual teaching and learning platform is that it provides a flexible environment to gain knowledge,skills,and attitude simultaneously along with formal off-line education.From the earlier studies it is found that the majority of studies have focused on traditional,offline training methods and only a few studies have focused on virtual training.Therefore,the present study examined the effectiveness of virtual training using the Kirkpatrick model.For this purpose,a research instrument based on the Kirkpatrick model was constructed and distributed among the UG and PG students in Mangalore City.A total of 143 responses were collected,of which 132 were completed responses and all of them were considered for analysis.Descriptive statistics and one sample t-test are employed to analyse and interpret the data.The findings revealed that virtual training is more effective compared to traditional and offline training methods.Henceforth,the training and education provided through virtual platforms made significant contributions to the employability of youngsters.
文摘The specialty of cardiovascular surgical nursing has advanced patient care significantly both before and after surgery, and it is now a well-established field. The primary goal of cardiovascular surgical nursing is to optimize the patient's recovery and prevent complications. Immediate nursing care for post-operative cardiac patients in a state of controlled shock due to fluid shift and varying vascular tone. Aim of the Study: Assessment of nurse’s knowledge and performance after the training program of nursing care immediately after a patient arrives from cardiac surgery. Methods: This pre and post-intervention study was conducted at cardiac centers in Sudan Alshaab and Ahmed Gasim Cardiac Center. The aim of the study was to evaluate the impact on nurses’ performance after training program post open-heart surgery. In the initial phase of the study, all 98 nurses working in the intensive care units at Alshaab and Ahmed Gasim cardiac centers were designated as the study group and evaluated before the intervention. Subsequently, the same group was reassessed after the intervention (phase 2), allowing for a comparison of the pre- and post-intervention results. The assessment involved the use of a specifically designed questionnaire and an observation checklist developed in accordance with the standards recommended by the American Nurses Association (phase 3). Result: Descriptive analysis was performed using the Chi-square test, the difference in the performance between the study group before intervention and after the intervention was assessed by the mean of chi-square significantly was taken as p < 0.05.
文摘In order to study the treatment of the children with attention deficit hyperactivity disorder (ADHD), the integrated visual and auditory continuous performance test (IVA-CPT) was clinically applied to evaluate the effectiveness of electroencephalogram (EEG) biofeedback training. Of all the 60 children with ADHD aged more than 6 years, the effective rate of EEG biofeedback training was 91.6 % after 40 sessions of EEG biofeedback training. Before and after treatment by EEG biofeedback training, the overall indexes of IVA were significantly improved among predominately inattentive, hyperactive, and combined subtype of children with ADHD (P<0.001). It was suggested that EEG biofeedback training was an effective and vital treatment on children with ADHD.
文摘On the basis of the essential connotation of the training effect on human resource development and the basic principles of setting up a index system, the evaluation index system of the training effect on human resource development in enterprises has been established. It evaluates the training effect on human resource development with the method of fuzzy comprehensive evaluation and achieves better results. It also provides a scientific, practical and quantitative method for the systematic analysis and comprehensive evaluation of the training effect on human resource development.
文摘Rural labor force transfer training is one of important poverty alleviation measures in China. This paper describes training participation situation and evaluates training effects by matching methods in the case of coastal autonomous minority nationality areas of Yunnan province by using 2053 rural household data. The result shows that the average training participation from 2006 to 2008 is 26.39 percent. In addition, ATE is 18.33 percent, TT is 18.99 percent, TUT is 18.09 percent. And,TUT . It demonstrates that the rural labor force transfer training program is effective and well-directed in coastal autonomous minority nationality areas of Yunnan province of China.
基金Project supported by the National Basic Research Program of China(Grant Nos.2014CB921101 and 2010CB923401)the National Natural Science Foundations of China(Grant Nos.51331004,11074112,and 11174131)
文摘A significant exchange bias(EB) training effect has been observed in sputter deposited FeAu/FeNi bilayers, wherein the exchange field(HE) exhibits a special sign-changeable temperature dependence. Very interestingly, despite the absence of multiple easy axes in the FeAu spin glass(SG) layer, HEdrops abruptly between the first and second magnetic cycles,which is followed by a more gradual continuous change in the subsequent cycles. This training behavior cannot be described by the empirical n-1/2law because of the asymmetric magnetization reversal processes. We propose modifying Binek's model to include the asymmetric changes of the pinning SG spins at the descending and ascending branches. This new model successfully describes the EB training effect in FeAu/FeNi bilayers.
文摘The Effect of the thermal cycling training under constant strain on the two-way shape memory effect (TWSME) in a Ti36Ni49Hf15 high temperature shape memory alloy (SMA) has been investigated by bending tests. The results indicated that the training procedure is beneficial to get the better TWSME. The two-way shape memory strain increases with increasing the training strain. And it decreases with increasing the training temperature. The TWSME obtained in the present alloy shows poorer stability compared with that obtained in the TiNi alloys.
文摘Objective To evaluate the training course effects on integrated sexual and reproduc- tive health (SRH) counseling, so as to improve family planning providers’ capacities of SRH counseling. Methods The SRH training course was conducted by using new curriculum and participatory training methods. The purpose was meeting the SRH needs of clients. Evaluations were done by pre- and post-training questionnaires to trainees. Results The average total scores of trainees were 54.9 before trained and 83.4 after trained respectively. As to trainees’ self evaluation of the capacities, the capacity for comfortably discussing sexuality and related issues with clients increased from 9.9% to 90.7%, the capacity for helping clients to understand their sexual risk factors increased from 12.5% to 92.2%, the capacity for helping clients assessing their own needs for SRH services, information and emotional support increased from 16.0% to 87.8%, and the capacity for helping clients to develop negotiation and communica- tion skills increased from 12.0% to 86.0%. Conclusion The training course of integrated SRH counseling changed the tradi- tional training types and services concept of family planning service providers, and the trainees’ capacities of implementing integrated SRH counseling also improved very much.
基金This work was supported by the Hainan Provincial Natural Science Foundation(618ms025)the Hainan Higher Education and Teaching Reform Research(hnjg2020-12).
文摘On the basis of studying the influencing factors of training effect evaluation,this paper constructs an AHP-fuzzy comprehensive evaluation model for farmers’vocational training activities in Hainan Province to evaluate farmers’training effect,which overcomes the limitations of traditional methods.Firstly,the content and index system of farmer training effect evaluation are established by analytic hierarchy process,and the weight value of each index is determined.Then,the fuzzy comprehensive evaluation(FCE)of farmer training effect is carried out by using multi-level FCE.The joint use of AHP and FCE improves the reliability and effectiveness of the evaluation process and results.The overall comprehensive evaluation result of the farmer training effect evaluation is“good”.
文摘A randomized grouping experiment was conducted to study the effect of 8-week functional training on shooting performance of Beijing female handball players.According to the athletes’FMS(functional movement screening)scoring results,they were randomly divided into 2 groups.The experimental group adopted an 8-week functional training,aiming at strengthening their core strength,joint stability,and the power chain of shooting techniques.The control group adopted the traditional strength training mode.ANOVA(analysis of variance)was adopted to analyze the different performance of the athletes from two groups on their FMS scores,distances of throwing,and 7-meter shooting speed before and after the experiment.The results show that:(1)the total FMS scores of the experimental group athletes have been increased more significantly than those of the control group,and the injuries per capita has been significantly reduced;(2)the athletes in the experimental group have more significantly improved performance in handball throwing and 7-meter shooting speed than those in the control group.It shows that 8 weeks of functional training may effectively improve the physical function of Beijing female handball players and their performance in two special skills of handball throwing and shooting speed.
基金supported by the Yeungnam College of Science & Technology Research Grants in 2012
文摘Cross-training is a phenomenon related to motor learning, where motor performance of the untrained limb shows improvement in strength and skill execution following unilateral training of the homologous contralateral limb. We used functional MRI to investigate whether motor performance of the untrained limb could be improved using a serial reaction time task according to motor sequential learning of the trained limb, and whether these skill acquisitions led to changes in brain activation patterns. We recruited 20 right-handed healthy subjects, who were randomly allocated into training and control groups. The training group was trained in performance of a serial reaction time task using their non-dominant left hand, 40 minutes per day, for 10 days, over a period of 2 weeks. The control group did not receive training. Measurements of response time and percentile of response accuracy were performed twice during pre- and post-training, while brain functional MRI was scanned during performance of the serial reaction time task using the untrained right hand. In the training group, prominent changes in response time and percentile of response accuracy were observed in both the untrained right hand and the trained left hand between pre- and post-training. The control group showed no significant changes in the untrained hand between pre- and post-training. In the training group, the activated volume of the cortical areas related to motor function (i.e., primary motor cortex, premotor area, posterior parietal cortex) showed a gradual decrease, and enhanced cerebellar activation of the vermis and the newly activated ipsilateral dentate nucleus were observed during performance of the serial reaction time task using the untrained right hand, accompanied by the cross-motor learning effect. However, no significant changes were observed in the control group. Our findings indicate that motor skills learned over the 2-week training using the trained limb were transferred to the opposite homologous limb, and motor skill acquisition of the untrained limb led to changes in brain activation patterns in the cerebral cortex and cerebellum.
基金supported by National Natural Science Foundation of China (No. 51674032)
文摘The accuracy of laser-induced breakdown spectroscopy(LIBS) quantitative method is greatly dependent on the amount of certified standard samples used for training. However, in practical applications, only limited standard samples with labeled certified concentrations are available. A novel semi-supervised LIBS quantitative analysis method is proposed, based on co-training regression model with selection of effective unlabeled samples. The main idea of the proposed method is to obtain better regression performance by adding effective unlabeled samples in semisupervised learning. First, effective unlabeled samples are selected according to the testing samples by Euclidean metric. Two original regression models based on least squares support vector machine with different parameters are trained by the labeled samples separately, and then the effective unlabeled samples predicted by the two models are used to enlarge the training dataset based on labeling confidence estimation. The final predictions of the proposed method on the testing samples will be determined by weighted combinations of the predictions of two updated regression models. Chromium concentration analysis experiments of 23 certified standard high-alloy steel samples were carried out, in which 5 samples with labeled concentrations and 11 unlabeled samples were used to train the regression models and the remaining 7 samples were used for testing. With the numbers of effective unlabeled samples increasing, the root mean square error of the proposed method went down from 1.80% to 0.84% and the relative prediction error was reduced from 9.15% to 4.04%.
文摘Objective To evaluate the short-term effect of pelvic floor muscle rehabilitation training under the guidance of doctors on children with neuropathic acontractile sphincter incontinence ( NASI) . Methods Sixty-eighty children ( aged 4 - 12 mean,7) years with NASI
文摘目的探究成果导向教育(Outcome Based Education,OBE)理论下TPA阶梯教学对神经科医师培训效果及教学满意度的影响。方法随机选取2020年5月—2023年5月潍坊医学院附属医院接受规范化培训的52名神经科医师为研究对象,于2020年5月—2021年12月培训中采用传统教学法的26名医师为A组、于2022年1月—2023年5月培训中采用OBE理论下TPA阶梯教学的26名医师为B组,对比两组培训效果。结果教学后,B组理论考核成绩、实践能力考核成绩均高于A组,差异有统计学意义(P均<0.05);B组教学满意度(100.00%)高于A组(76.92%),差异有统计学意义(χ^(2)=4.710,P<0.05)。结论OBE理论下TPA阶梯教学的应用效果更理想,有助于提高神经科医师理论及实践能力考核成绩、教学满意度。
基金supported by Key Program of Natural Science Foundation of Educational Commission of Sichuan Province, China (GrantNo 2006A124)the Fundamental Application Research Project of the Department of Science and Technology of Sichuan Province,China (Grant No 05JY029-084)the Foundation of Science and Technology Development of Chengdu University of Information Technology, China (Grant No KYTZ20060604)
文摘Starting from the extended nonlinear Schr¨odinger equation in which the self-steepening effect is included, the evolution and the splitting processes of continuous optical wave whose amplitude is perturbed into time related ultrashort optical pulse trains in an optical fibre are numerically simulated by adopting the split-step Fourier algorithm. The results show that the self-steepening effect can cause the characteristic of the pulse trains to vary with time, which is different from the self-steepening-free case where the generated pulse trains consist of single pulses which are identical in width, intensity, and interval, namely when pulses move a certain distance, they turn into the pulse trains within a certain time range. Moreover, each single pulse may split into several sub-pulses. And as time goes on, the number of the sub-pulses will decrease gradually and the pulse width and the pulse intensity will change too. With the increase of the self-steepening parameter, the distance needed to generate time-dependent pulse trains will shorten. In addition, for a large self-steepening parameter and at the distance where more sub-pulses appear, the corresponding frequency spectra of pulse trains are also wider.
基金the Project of Jiangxi Meteorological Bureau"Spatial and Temporal Distribution Characteristics and Classification of Heavy Rainstorm in Nanchang City".
文摘Based on the conventional observation data,dual polarization radar data and NCEP reanalysis data,the large-scale circulation background field,mesoscale conditions and formation causes of a heavy rainstorm in Nanchang on July 7,2020 were studied.It was found that this heavy rainstorm occurred under the weather background of the confrontation between the northward air flow behind the trough and the strong southwest warm and humid air flow to the northwest of the subtropical high.The divergence at the upper level,the shear in the middle and low levels,the southward movement of cold air at the low level,unusually abundant water vapor and high unstable energy caused the heavy rainstorm weather.In this process,under the influence of continuous eastward movement of several strong echo cells,an obvious"train effect"was formed in Nanchang,so that the local rainfall was continuous and intense.Moreover,the average of VIL was about 17 kg/m 2,and its variation characteristics were consistent with the variation trend of 5-min rainfall intensity,which had a certain indicator effect on short-term heavy precipitation.The topography of the Meiling Mountain in the west of Nanchang had a great influence on the formation and precipitation distribution of the heavy rain process.There was a strong rainstorm center near the mountain,and the precipitation was obviously larger than that in the plain area.