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Returns to Education in China:1989-2011 被引量:2
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作者 杨蕙馨 王海兵 《China Economist》 2016年第3期39-53,共15页
Using China Health and Nutrition Survey(CHNS) data between 1989 and 2011, this paper measures the returns to education in China based on the Mincer earnings function and reaches the following findings through an analy... Using China Health and Nutrition Survey(CHNS) data between 1989 and 2011, this paper measures the returns to education in China based on the Mincer earnings function and reaches the following findings through an analysis of the tendency of continuous variations over a long timeframe: returns to education are on the rise within the range of samples both under relative and absolute scenarios; returns to different levels of education are characterized by increasing marginal return; no significant difference exists between the returns to junior middle school and the returns to primary school education. Further discussions consider that the requirements of job positions for the overall competence of personnel, differentiated decline of corporate demand for recruitment, lack of an evaluation system in the labor market, information asymmetry in the job market, the development strategy adopted in a particular stage of history and the current slow progress of economic transition have jointly led to the underemployment of college graduates and the great enthusiasm of parents investing in higher education for their children. Conclusions of this paper not only have important practical relevance to the ongoing implementation of China's innovation-driven development strategy, but offer inspirations for the new round of educational reform as well. 展开更多
关键词 returns to education Mincer earnings function time trend educational reform
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Study on the Humanity of Ordinary Music Education in China in Modern Times 被引量:1
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作者 Yu Liwen 《学术界》 CSSCI 北大核心 2013年第11期268-273,共6页
The modern time of China is the most brilliant of the whole Chinese history,during which China was reduced from the feudal society to the semi-colonial and semi-feudal society and then a new China with the socialist s... The modern time of China is the most brilliant of the whole Chinese history,during which China was reduced from the feudal society to the semi-colonial and semi-feudal society and then a new China with the socialist system was founded after indomitable struggle.In such a context,the whole society experienced unsmooth development;while the music theories and music education soared with the invasion of capitalism.On the one hand,foreigners invaded China;on the other hand,they brought advanced music culture,promoting the music culture of China,which had stagnated for about two thousand years.This paper attempts to study the development path of music education in modern China from the perspective of development process. 展开更多
关键词 近代中国 音乐教育 人文 封建社会 音乐文化 调制解调器 资本主义 殖民地
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Verifying the Effects of an Education Program Leveraging Information Technology to Promote Cervical Cancer Screening in Women Aged 20 - 29—A One-Year Longitudinal Study
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作者 Nakamura Tomoko Sasaki Ayako 《Health》 2020年第11期1526-1542,共17页
The purpose of this research is to implement an IT-based education program in order to promote cervical cancer screenings for women aged 20 - 29 years, as well as to examine the results of said program. This is a long... The purpose of this research is to implement an IT-based education program in order to promote cervical cancer screenings for women aged 20 - 29 years, as well as to examine the results of said program. This is a longitudinal/comparative study of two groups, one for which the program was implemented (the intervention group), and the other for which it was not (the control group). The program consisted of attending a health lecture and encouragement to be screened one month, six months, and one year later sent through IT-based methods. The target was unmarried women aged 20 - 29 who had neither previously given birth nor had been screened for cervical cancer in a period one year prior. They were divided into two groups, the intervention group (n = 142) and control group (n = 145). The effectiveness of the program was assessed via an initial survey and further surveys six months and one year later. Results were based on the Japanese version of the Health Belief Model Scale for Cervical Cancer and the Pap Smear Test (HBMSCCPST), knowledge scores in the categories of Healthy Lifestyles, Cervical Cancer, Cervical Cancer Screening, and screening behavior. A two-way ANOVA of the HBMSCCPST subscales and knowledge scores in the initial, six-month, and one-year surveys was performed, showing interaction in Cervical Cancer (p = 0.00). Main effects were observed in Cervical Cancer Screening (p = 0.00) and Healthy Lifestyles (p = 0.00). Regarding the amount of change from the initial survey, knowledge scores in the Cervical Cancer (p = 0.027) and Cervical Cancer Screening (p = 0.016) categories were significantly higher in the intervention group than in the control group. There was no significant difference in cervical cancer screening rates (p = 0.26) between the two groups. However, a small-degree effect size was observed for Benefits, Seriousness, and Susceptibility subscales in both examinees and non-examinees. Although the educational program of this study was effective in improving the knowledge of women in their twenties, there was little improvement in HBMSCCPST and it did not lead to the promotion of cervical cancer screening. In order to raise interest in cervical cancer screening, it is necessary to consider useful content to guide women to consult with healthcare professionals, a long-term population approach, and organizational structure of consultation. 展开更多
关键词 Cervical Cancer Screening Age 20 - 29 educational Program INFORMATION Technology
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Neural Networks and the Study of Time Series: An Application in Engineering Education
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作者 Jose Tarcisio Franco de Camargo Estefano Vizconde Veraszto +1 位作者 Gilmar Barreto Sergio Ferreira do Amaral 《Journal of Mechanics Engineering and Automation》 2015年第3期153-160,共8页
Time series are an important object of study in sciences, engineering and business, especially in cases where it is expected to know, predict and optimize behaviors. In this context, we intend to show the feasibility ... Time series are an important object of study in sciences, engineering and business, especially in cases where it is expected to know, predict and optimize behaviors. In this context, we intend to show the feasibility of using artificial neural networks in the study of several time series in an engineering course, especially those that have no overt behavior or are not able to be modeled mathematically in a simple way and have direct application in the education of future engineers. 展开更多
关键词 Engineering education time series mathematical modeling.
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Development and application of the ideological and political education in universities during new media time
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作者 Yinan Su Siqing Dong 《International Journal of Technology Management》 2014年第5期80-82,共3页
Science and technology proceed by leaps and bounds; our network is growing at an alarming rate which is reflected in the rapid development and popularization. Facing highly developed information technology, and the ra... Science and technology proceed by leaps and bounds; our network is growing at an alarming rate which is reflected in the rapid development and popularization. Facing highly developed information technology, and the rapid development of the network, strengthen ideological and political education is very important, the network has put impressive and comprehensive impact on the university teachers and students' lives, learning, work, moral, ideological and political attitudes, moral outlook, political literacy, life values, and ideological and political education in universities is facing a new challenge ; Meanwhile, the network also provides many new challenges and opportunities, expanding the channel and space of ideological and political education, it also can improve the quality of the main ideological and political education of high demand. Therefore, the educators of ideological and political education in colleges should keep up the pace of the rapid development of large- era, became not only who has a good ideological and political quality and comprehensive cultural knowledge quality, but also has very high literal ability and a solid information of network technology skills, so they could give full play to the advantages of information networks, do research and create a new situation in a large network of ideological and political education, then make the traditional ideological and political education produce a qualitative leap. 展开更多
关键词 DEVELOPMENT APPLICATION ideological and political education new media time
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National Programme for Educational Development,1996-2010
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《China Population Today》 1998年第Z2期5-6,共2页
关键词 National Programme for educational Development 1996-2010
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Special Plan for Educational Development During 2001-2005
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《China Population Today》 2002年第1期5-9,共5页
关键词 Special Plan for educational Development During 2001-2005
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Effectiveness of an Educational Intervention for Postpartum Depression in a Pre-Parent Classroom
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作者 Taeko Unno Eriko Terasawa +3 位作者 Kiyoko Naito Mayuko Niida Yoshihiro Asano Hisayo Okayama 《Open Journal of Nursing》 2023年第8期455-486,共32页
The global incidence of postpartum depression is estimated at approximately 10% - 20%. A lack of partner support is a key factor associated with perinatal depression. This study examined the effects of an educational ... The global incidence of postpartum depression is estimated at approximately 10% - 20%. A lack of partner support is a key factor associated with perinatal depression. This study examined the effects of an educational intervention that provided information for the prevention and early detection of postpartum depression to first-time mothers and fathers who participated in a “First-Time Parent Class.” The study was utilized quasi-experimental research, conducted first with the control group and followed by an assessment of the intervention group. Mothers were assessed using the Edinburgh Postpartum Depression Scale and the Japan Child and Family Research Institute Child-Rearing Support Questionnaire. Fathers’ assessments were conducted using the Japan Child and Family Research Institute Child-Rearing Support Questionnaire for Fathers and were based on responses to questions regarding their coping strategies. Data were obtained from 158 data (72 interventions, 86 controls) couples analyzed. No significant difference was found between mothers’ child-rearing difficulty and depression score rates in the first month after childbirth. There was a difference among fathers in the control group and those in the intervention group regarding their responses to maternal depression: the “consult family” (p = 0.035), “consult friends” (p = 0.033), and “consult the city health center” (p = 0.047) variables were higher in the intervention group;however, the effect size was small. Providing first-time parents with information during pregnancy to prevent and detect postpartum depression will deepen parents’ understanding and help them cope with postpartum depression. 展开更多
关键词 Postpartum Depression First-time Parents educational Intervention
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Photodissociation Dynamics of 2-1odotoluene Investigated by Femtosecond Time-Resolved Mass Spectrometry 被引量:1
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作者 刘志明 王艳梅 +2 位作者 胡春龙 龙金友 张冰 《Chinese Journal of Chemical Physics》 SCIE CAS CSCD 2016年第1期53-58,I0001,共7页
The photodissociation dynamics of 2-iodotoluene following excitation at 266 nm have been investigated employing femtosecond time-resolved mass spectrometry. The photofragments are detected by multiphoton ionization us... The photodissociation dynamics of 2-iodotoluene following excitation at 266 nm have been investigated employing femtosecond time-resolved mass spectrometry. The photofragments are detected by multiphoton ionization using an intense laser field centered at 800 nm. A dissociation time of 3804-50 fs was measured from the rising time of the co-fragments of toluene radical (C7H7) and iodine atom (I), which is attributed to the averaged time needed for the C-I bond breaking for the simultaneously excited nσ and ππ* states by 266 nm pump light. In addition, a probe light centered at 298.23 nm corresponding to resonance wavelength of ground-state iodine atom is used to selectively ionize ground-state iodine atoms generated from the dissociation of initially populated hσ* and ππ* states. And a rise time of 4004-50 fs is extracted from the fitting of time-dependent I+ transient, which is in agreement with the dissociation time obtained by multiphoton ionization with 800 nm, suggesting that the main dissociative products are ground-state iodine atoms. 展开更多
关键词 resolved mass 2-1odotoluene PHOTODISSOCIATION Dissociation time Femtosecond timespectrometry
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美国“Time-out”惩罚教育对幼儿园教育的启示 被引量:1
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作者 黄乐 姜淑梅 《宁波教育学院学报》 2015年第4期122-124,共3页
"Time-out"是美国幼儿园中较为常用的一种教育策略,用于应对儿童的不适宜或违纪行为。本文主要阐述了美国"Time-out"惩罚教育的含义及实施策略,以及它对幼儿园教育的启示。
关键词 time-out”惩罚教育 幼儿园教育 启示
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Impact of time lags on diurnal estimates of canopy transpiration and canopy conductance from sap-flow measurements of Populus cathayana in the Qinghai–Tibetan Plateau 被引量:3
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作者 Hui Wang Kangning He +4 位作者 Runjie Li Zhuping Sheng Yun Tian Jun Wen Bo Chang 《Journal of Forestry Research》 SCIE CAS CSCD 2017年第3期481-490,共10页
Recently, canopy transpiration (Ec) has been often estimated by xylem sap-flow measurements. However, there is a significant time lag between sap flow measured at the base of the stem and canopy transpiration due to... Recently, canopy transpiration (Ec) has been often estimated by xylem sap-flow measurements. However, there is a significant time lag between sap flow measured at the base of the stem and canopy transpiration due to the capacitive exchange between the transpiration stream and stem water storage. Significant errors will be introduced in canopy conductance (gc) and canopy transpiration estimation if the time lag is neglected. In this study, a cross-correlation analysis was used to quantify the time lag, and the sap flowbased transpiration was measured to pararneterize Jarvistype models of gc and thus to simulate Ec of Populus cathayana using the Penman-Monteith equation. The results indicate that solar radiation (Rs) and vapor pressure deficit (VPD) are not fully coincident with sap flow and have an obvious lag effect; the sap flow lags behind Rs and precedes VPD, and there is a 1-h time shift between Eo and sap flow in the 30-min interval data set. A parameterized Jarvis-type gc model is suitable to predict P. cathayana transpiration and explains more than 80% of the variation observed in go, and the relative error was less than 25%, which shows a preferable simulation effect. The root mean square error (RMSEs) between the predicted and measured Ec were 1.91×10^-3 (with the time lag) and 3.12×10^-3cm h^-1 (without the time lag). More importantly, Ec simulation precision that incorporates time lag is improved by 6% compared to the results without the time lag, with the mean relative error (MRE) of only 8.32% and the mean absolute error (MAE) of 1.48 × 10^-3 cm h^-1. 展开更多
关键词 Canopy transpiration Model - Populuscathayana Qinghai-Tibetan Plateau Sap flow time lags
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Real-time crash prediction on freeways using data mining and emerging techniques 被引量:4
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作者 Jinming You Junhua Wang Jingqiu Guo 《Journal of Modern Transportation》 2017年第2期116-123,共8页
Recent advances in intelligent transportation system allow traffic safety studies to extend from historic data-based analyses to real-time applications. The study presents a new method to predict crash likelihood with... Recent advances in intelligent transportation system allow traffic safety studies to extend from historic data-based analyses to real-time applications. The study presents a new method to predict crash likelihood with traffic data collected by discrete loop detectors as well as the web-crawl weather data. Matched case-control method and support vector machines (SVMs) technique were employed to identify the risk status. The adaptive synthetic over-sampling technique was applied to solve the imbalanced dataset issues. Random forest technique was applied to select the contributing factors and avoid the over-fitting issues. The results indicate that the SVMs classifier could successfully classify 76.32% of the crashes on the test dataset and 87.52% of the crashes on the overall dataset, which were relatively satisfactory compared with the results of the previous studies. Compared with the SVMs classifier without the data, the SVMs classifier with the web-crawl weather data increased the crash prediction accuracy by 1.32% and decreased the false alarm rate by 1.72%, showing the potential value of the massive web weather data. Mean impact value method was employed to evaluate the variable effects, and the results are identical with the results of most of previous studies. The emerging technique based on the discrete traffic data and web weather data proves to be more applicable on real- time safety management on freeways. 展开更多
关键词 Crash prediction detectors Web-crawl data Real time - Discrete loop Support vector machines
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A Numerical Algorithm Based on Quadratic Finite Element for Two-Dimensional Nonlinear Time Fractional Thermal Diffusion Model 被引量:3
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作者 Yanlong Zhang Baoli Yin +2 位作者 Yue Cao Yang Liu Hong Li 《Computer Modeling in Engineering & Sciences》 SCIE EI 2020年第3期1081-1098,共18页
In this article,a high-order scheme,which is formulated by combining the quadratic finite element method in space with a second-order time discrete scheme,is developed for looking for the numerical solution of a two-d... In this article,a high-order scheme,which is formulated by combining the quadratic finite element method in space with a second-order time discrete scheme,is developed for looking for the numerical solution of a two-dimensional nonlinear time fractional thermal diffusion model.The time Caputo fractional derivative is approximated by using the L2-1formula,the first-order derivative and nonlinear term are discretized by some second-order approximation formulas,and the quadratic finite element is used to approximate the spatial direction.The error accuracy O(h3+t2)is obtained,which is verified by the numerical results. 展开更多
关键词 Quadratic finite element two-dimensional nonlinear time fractional thermal diffusion model L2-1formula.
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Leveraging Confucian and Daoist Wisdom for Biodiversity Education: A Pathway to Sustainable Decision Making 被引量:1
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作者 Bodong Chen Zixin Dong Toby Michelena 《教育技术与创新》 2023年第3期19-30,共12页
The vitality of biodiversity,an essential pillar of a thriving biosphere,is currently at risk.This paper investigates the potential of ancient philosophies,specifically Confucianism and Daoism,as pathways to mitigate ... The vitality of biodiversity,an essential pillar of a thriving biosphere,is currently at risk.This paper investigates the potential of ancient philosophies,specifically Confucianism and Daoism,as pathways to mitigate this issue.We delve into the intricate connections between these philosophies and the natural world,and how they can inform our understanding of biodiversity threats in the context of cultural and technological evolution.Recognizing the inevitable progression of technology and its influence on human evolution and the biosphere,we turn to traditional philosophies to establish guiding principles for sustainable decision-making.We advocate for the principle:"Decisions must not result in the artificial reduction of biodiversity within the framework of evolutionary time."This principle is substantiated by reciprocal arguments that lay the foundation for the essential analyses to protect biodiversity.By adhering to this principle,we can ensure a sustainable biosphere conducive to ongoing human evolution.This study underscores the importance of integrating ancient wisdom with modern decision-making processes to address the pressing issue of biodiversity loss. 展开更多
关键词 biodiversity education CONFUCIANISM DAOISM evolutionary time sustainable decision-making
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Threefold Optimized Forecasting of Electricity Consumption in Higher Education Institutions
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作者 Majida Kazmi Hashim Raza Khan +2 位作者 Lubaba Mohammad Hashir Bin Khalid Saad Ahmed Qazi 《Computers, Materials & Continua》 SCIE EI 2022年第11期2351-2370,共20页
Energy management benefits both consumers and utility companiesalike. Utility companies remain interested in identifying and reducing energywaste and theft, whereas consumers’ interest remain in lowering their energy... Energy management benefits both consumers and utility companiesalike. Utility companies remain interested in identifying and reducing energywaste and theft, whereas consumers’ interest remain in lowering their energyexpenses. A large supply-demand gap of over 6 GW exists in Pakistan asreported in 2018. Reducing this gap from the supply side is an expensiveand complex task. However, efficient energy management and distributionon demand side has potential to reduce this gap economically. Electricityload forecasting models are increasingly used by energy managers in takingreal-time tactical decisions to ensure efficient use of resources. Advancementin Machine-learning (ML) technology has enabled accurate forecasting ofelectricity consumption. However, the impact of computation cost affordedby these ML models is often ignored in favour of accuracy. This studyconsiders both accuracy and computation cost as concurrently significantfactors because together they shape the technology environment as well ascreate economic impact. Thus, a three-fold optimized load forecasting modelis proposed which includes (1) application specific parameters selection, (2)impact of different dataset granularities and (3) implementation of specificdata preparation. It deploys and compares the widely used back-propagationArtificial Neural Network (ANN) and Random Forest (RF) models for theprediction of electricity consumption of buildings within a university. In addition to the temporal and historical power consumption date as input parameters, the study also embeds weather data as well as university operationalcalendars resulting in improved performance. The outcomes are indicativethat the granularity i.e. the scale of details in data, and set of reduced and fullinput parameters impact performance accuracies differently for ANN and RFmodels. Experimental results show that overall RF model performed betterboth in terms of accuracy as well as computational time for a 1-min, 15-minand 1-h dataset granularities with the mean absolute percentage error (MAPE)of 2.42, 3.70 and 4.62 in 11.1 s, 1.14 s and 0.3 s respectively, thus well suitedfor a real-time energy monitoring application. 展开更多
关键词 Electricity forecasting short term higher educational institution artificial neural network random forest ACCURACY computational time
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Impact of Education on Productivity:A Model in China
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作者 戴昌钧 高建兵 《Journal of China Textile University(English Edition)》 EI CAS 2000年第2期113-116,共4页
Improving the quality of human resources through edu-cation and training is of great strategic significance.However, few people have done in depth and systematicstudies on the relationship between education and pro-du... Improving the quality of human resources through edu-cation and training is of great strategic significance.However, few people have done in depth and systematicstudies on the relationship between education and pro-ducttvity in China. This study developed an educationproductivity transform model and empirically tested themodel using data on the most districts of China. The ba-sic notion is that the effect depends both on the capabilityresulted from education, and on the environment inwhich this capability can be exercised, the effect is a re-sult of two factors combined. 展开更多
关键词 education - PRODUCTIVITY TRANSFORM MODEL CAPABILITY function technology management COEFFICIENT
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Suppressive Influence of Time- Space White Noise on the Explosion of Solutions of Stochastic Fokker- Planck Delay Differential Equations
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作者 Augustine O. Atonuje Jonathan Tsetimi 《Journal of Mathematics and System Science》 2016年第7期284-290,共7页
It is generally known that the solutions of deterministic and stochastic differential equations (SDEs) usually grow linearly at such a rate that they may become unbounded after a small lapse of time and may eventual... It is generally known that the solutions of deterministic and stochastic differential equations (SDEs) usually grow linearly at such a rate that they may become unbounded after a small lapse of time and may eventually blow up or explode in finite time. If the drift and diffusion functions are globally Lipschitz, linear growth may still be experienced, as well as a possible blow-up of solutions in finite time. In this paper, a nonlinear scalar delay differential equation with a constant time lag is perturbed by a multiplicative Ito-type time - space white noise to form a stochastic Fokker-Planck delay differential equation. It is established that no explosion is possible in the presence of any intrinsically slow time - space white noise of Ito - type as manifested in the resulting stochastic Fokker- Planck delay differential equation. Time - space white noise has a role to play since the solution of the classical nonlinear equation without it still exhibits explosion. 展开更多
关键词 Explosion non-linear stochastic Fokker Planck delay differential equation time - space white noise finite time.
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子女出生顺序对家庭资源分配的影响--基于家庭教育投入跨期回报模型
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作者 廖予熙 仇焕广 孔祥雯 《人口学刊》 CSSCI 北大核心 2024年第2期63-76,共14页
随着“全面两孩”政策的颁布,多子女家庭重新回归历史舞台。由于家庭资源的有限性,未成年时期兄弟姐妹之间存在着潜在竞争关系,而父母则是资源分配的主导者。家庭内部的资源分配关系短期内影响子女受教育水平,长期来看,对中国人力资本... 随着“全面两孩”政策的颁布,多子女家庭重新回归历史舞台。由于家庭资源的有限性,未成年时期兄弟姐妹之间存在着潜在竞争关系,而父母则是资源分配的主导者。家庭内部的资源分配关系短期内影响子女受教育水平,长期来看,对中国人力资本发展有着深远影响。本文利用2014年中国健康与养老追踪调查生命历程调查(CHARLS)数据,针对子女出生顺序对家庭资源分配的作用进行系统研究,并构建家庭教育投入跨期回报模型对头胎学历优势现象进行阐释。理论模型发现兄弟姐妹之间存在资源竞争关系,对一个孩子的教育投资增加会导致另一个孩子获得的教育投资减少,并且父母会选择投资出生顺序更靠前的子女。这是因为头胎距离完成教育的时间更短,可以更快地进入就业市场带来实际回报,减轻父母经济压力,而投入更小孩子的教育则需要花费更多时间和资源,等待回报的年限也相对较长。实证结果进一步验证了模型推导结论,在控制了受访者个人特征、家庭经济特征、家庭人口情况和社区虚拟变量的基础上,研究运用有序Probit模型回归发现出生顺序对受教育水平有显著的负效应,顺序靠前的孩子受教育时间普遍更长,该结论在考虑家户虚拟变量、子女数量和家庭成分后仍然稳健。这样的现象在家长受教育水平越高以及男孩身上越显著,而幼子与头胎年龄差距越大,学历水平显著提高。一些潜在机制是父母对头胎教育更严格。此外,虽然头胎有着学历优势,父母却通常偏爱更小的孩子,对他们成年后的帮助也更大,这一发现揭示了家庭中关于资源分配的微妙动态平衡。基于本文研究结论,应进一步完善教育补贴政策,以确保多子女家庭能够获得更全面的教育福利支持,同时开展有关家庭教育观念的培训活动,帮助家长理解和重视每个子女的个性化需求,促使教育资源在家庭中更加公平地分配给每个子女,为每个孩子提供健康成长的机会。 展开更多
关键词 出生顺序 教育资源 投入跨期回报模型
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时间限制对沉浸体验的影响机制--基于教育游戏情境的实证研究 被引量:16
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作者 胡立如 丁静静 +1 位作者 马颖峰 张宝辉 《开放教育研究》 CSSCI 北大核心 2016年第2期113-120,共8页
沉浸体验作为一种心理状态,是提高学习表现和促进深度学习的重要途径。为了探究时间限制对沉浸体验的影响机制,本研究以益智游戏2048为实验情境,设置四个不同时间限制水平的游戏任务(无限制、低限制、中等限制和高限制),应用混合研究方... 沉浸体验作为一种心理状态,是提高学习表现和促进深度学习的重要途径。为了探究时间限制对沉浸体验的影响机制,本研究以益智游戏2048为实验情境,设置四个不同时间限制水平的游戏任务(无限制、低限制、中等限制和高限制),应用混合研究方法收集数据。结果发现:时间限制是沉浸体验的显著预测量,它可以显著调节挑战-技能平衡,降低控制感,并强化时间扭曲感;时间限制和沉浸体验之间总体呈负相关,拒绝原"倒U型"假设。但是,质性分析数据显示,时间限制对沉浸体验和深度学习有正向影响。因此,在设计学习任务时,设计者有必要从激发沉浸体验的角度考虑时间限制变量。当在学习者最近发展区激发沉浸体验时,时间限制将能够实现沉浸体验与深度学习的融合,创建既高效又愉悦的深度学习体验。 展开更多
关键词 时间限制 沉浸体验 教育游戏 深度学习 学习设计
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人5-羟色胺2c受体基因实时荧光定量PCR方法的建立 被引量:1
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作者 刀筱芳 何进宇 +5 位作者 伍学英 龚玉来 高利民 徐亚欧 李宁 袁忠 《四川医学》 CAS 2008年第5期503-505,共3页
目的建立5-羟色胺2c受体(5-HTR2c)基因mRNA表达水平的TaqMan real—time PcR检测方法。方法以β-actin为内参基因,根据GenBank中人5-HTR2c及β-actin基因序列,分别设计了2套特异性引物和TaqMan探针,接着对反应的退火温度、引物浓... 目的建立5-羟色胺2c受体(5-HTR2c)基因mRNA表达水平的TaqMan real—time PcR检测方法。方法以β-actin为内参基因,根据GenBank中人5-HTR2c及β-actin基因序列,分别设计了2套特异性引物和TaqMan探针,接着对反应的退火温度、引物浓度、探针浓度、Mg^2+浓度进行优化,然后以优化的条件建立相对定量标准曲线,并对该方法的稳定性进行了分析。结果5-HTR2c及β-actin基因的real—time PCR扩增效率分别为99.9%和100.0%;相对定量标准曲线的CT值线性范围分别为12.2~35.1和11.5~31.5,相关系数分别为0.999及1.000;批内及批问变异系数(8.0%。结论本研究所建立的针对5-HTR2c mRNA表达水平的Taqman real-time PCR检测方法具有扩增效率高、稳定性好等特点,为进一步探索5-HTR2c的功能及其mRNA表达水平的变化和各种疾病发生、发展的相关性提供了有用的方法学基础。 展开更多
关键词 5-羟色胺2c受体 TAQMAN探针 real—time PCR
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