The Verhulst model with remedy and its application in forecasting quantity of student taking entrance examination to college

The Verhulst model can be used to forecast the sequence, which is characterized as non-monotone and fluctuant sequence or saturated S-form sequence. According to the situation of national enrollment scale of college, this paper forecasts the quantity of students taking entrance examination to college with a Verhulst model with remedy based on data mining theories, and by the above model, some countermeasures are developed to the higher education of Henan province in China.     

系统视角下的中原经济区发展趋势预测与分析

随着中原经济区规划受到普遍重视,为把握区域发展中存在的利弊因素需要从系统工程的角度对河南省下一阶段发展趋势进行研究.首先应当看到经济发展受多方面因素影响和制约,需要将多方面影响经济协调发展的因素纳入衡量体系;其次在经济持续增长的背景下应当警惕其中存在的不稳定因素;为此小样本预测方法引入的区域经济预测分析中具有必要性.通过系统论角度的建模分析得到了河南省＂十二五＂期间经济系统全方面的预测,结果表明河南省经济在未来＂十二五＂期间将保持稳定快速发展,同时面临的投资泡沫等压力也随之上升.     

Evolutionary Maps: A new model for the analysis of conceptual development,with application to the diurnal cycle

This paper presents a model of how children generate concrete concepts from perception through processes of differentiation and integration. The model informs the design of a novel methodology (evolutionary maps or emaps), whose implementation on certain domains unfolds the web of itineraries that children may follow in the construction of concrete conceptual knowledge and pinpoints, for each conception, the architecture of the conceptual change that leads to the scientific concept. Remarkably, the generative character of its syntax yields conceptions that, if unknown, amount to predictions that can be tested experimentally. Its application to the diurnal cycle (including the sun's trajectory in the sky) indicates that the model is correct and the methodology works (in some domains). Specifically, said emap predicts a number of exotic trajectories of the sun in the sky that, in the experimental work, were drawn spontaneously both on paper and a dome. Additionally, the application of the emaps theoretical framework in clinical interviews has provided new insight into other cognitive processes. The field of validity of the methodology and its possible applications to science education are discussed.     

一种新的手性氨基醇配体的合成及在二乙基锌对苯甲醛的不对称加成反应中的应用

以L-丝氨酸为手性源,经过酯化,缩合,还原氨化,关环,格氏反应,成功地得到了一种新的手性β-氨基醇（6）,其结构经过IR,1H NMR,13C NMR,HRMS表征,并首次将其应用于催化二乙基锌对苯甲醛的不对称加成反应中,得到了较高的产率（82.8%）和较好的ee值（76.1%）.     

Understanding the performance of universities to promote technological innovation and transformation: An application to China based on a new network data envelopment analysis cross-efficiency model

When evaluating the performance of Research and Development (R&D) and Scientific and Technological (S&T) transformation activities in universities, the existing studies do not contain prior strategy analysis and inequality analysis. In this regard, prior strategy reflects the relative attention paid by universities to R&D and S&T transformation activities, while inequality analysis assists us in better understanding technological inequality in efficiency across universities. Additionally, this study contributes to the existing literatures by proposing new concepts of window-based cross-efficiency, window-based relative weights and a network Data Envelopment Analysis model. Our framework is able to evaluate the efficiency, perform priority analysis and identify the sources of technological inequality. Empirically, this study focuses on universities in Chinese provinces from 2007 to 2019. This study is of high policy practice, since it provides policy makers with how each university has performed during the examined period and what are the underling factors driving efficiency changes.     

新型固体酸的制备及其在乙酸乙酯合成中的应用

用浓硫酸、硼酸和磷酸通过一种简单的方法制备了一种新型固体酸，并应用IR和XRD对所合成物质进行了表征，确定了固体酸的组成、结构,结果表明，所合成的材料是由硼氧化合物与磷氧化合物骨架及负载硫酸根组成的聚集体，可用SO4^2-／BOr-POy表示．研究表明，这种新型固体酸对于乙酸与乙醇进行的酯化反应是一种有效的催化剂，具有较高的活性，并且这种催化剂易从产物中分离出来，有很好的重复使用性．     

A macro-level analysis of SRL processes and their relations to the acquisition of a sophisticated mental model of a complex system

In this study, we used think-aloud verbal protocols to examine how various macro-level processes of self-regulated learning (SRL; e.g., planning, monitoring, strategy use, handling of task difficulty and demands) were associated with the acquisition of a sophisticated mental model of a complex biological system. Numerous studies examine how specific micro-level SRL processes such as judgments of learning or prior knowledge activation are related to learning outcomes. However, it is also valuable to look at these processes in macro-level aggregates because efficacy and use of micro-level strategies can vary due to individual differences. Two hundred and nineteen high-school and middle-school students produced think-aloud protocols while learning with a hypermedia environment. We transcribed and coded participants’ learning sessions for the use of micro- and macro-level SRL processes. Participants’ developmental level, prior knowledge, and monitoring behaviors were associated with posttest mental model sophistication. These results illustrate that monitoring is a key SRL process when developing an understanding of a complex science topic using hypermedia.     

Determination of risperidone in human plasma by HPLC-MS/MS and its application to a pharmacokinetic study in Chinese volunteers

This study presents a rapid, specific and sensitive liquid chromatography/tandem mass spectrometry (LC-MS/MS) assay for determination of risperidone (RIS) in human serum using paroxetine as an internal standard (IS). An Alltima-C 18separation. The analysis was performed by selected reaction monitoring (SRM) method, and the peak area of the m/z 411.3→ 191.1 transition for RIS was measured versus that of the m/z 330.1→192.1 transition for IS to generate the standard curves. The assay linearity of RIS was confirmed over the range 0.25～50.00 ng/ml and the limit of quantitation was 0.05 ng/ml. The linear range corresponds well with the serum concentrations of the analytes obtained in clinical pharmacokinetic studies. Intraday and interday relative standard deviations were 1.85%～9.09% and 1.56%～4.38%, respectively. The recovery of RIS from serum was in the range of 70.20%～84.50%. The method was successfully applied to investigate the bioequivalence between two kinds of tablets (test versus reference products) in 18 healthy male Chinese volunteers. The result suggests that two formulations are bioequivalent.     

Continuous frequency and phase spectrograms： a study of their 2D and 3D capabilities and application to musical signal analysis

A new lighting and enlargement on phase spectrogram （PS） and frequency spectrogram （FS） is presented in this paper. These representations result from the coupling of power spectrogram and short time Fourier transform （STFT）. The main contribution is the construction of the 3D phase spectrogram （3DPS） and the 3D frequency spectrogram （3DFS）. These new tools allow such specific test signals as small slope linear chirp, phase jump case of musical signal analysis is reported. The main objective is to and small frequency jump to be analyzed. An application detect small frequency and phase variations in order to characterize each type of sound attack without losing the amplitude information given by power spectrogram     

《文心雕龙》的五言诗论

在《文心雕龙》的论诗之言中,五言诗论重要且独特,然而前人未对它做过专题的研究。文章分析了《文心雕龙》的五言诗论之后提炼了刘勰的五言诗现,并将其与同时代的五言诗观相比较,指出了它的独特性。刘勰的“折中”观念在其五言诗论中也有所体现：他承认五言的流变,但不因此贬低;不反对人力雕琢。强调要建立在自然而然的基础上;情与采兼重。     

Inquiry-based learning with young learners: a Peirce-based model employed to critique a unit of inquiry on maps and mapping

Inquiry-based learning (IBL) has become a common theme in both school and higher education in recent years. It suggests a model of curriculum development and practice that moves educational debate beyond teacher or student-based approaches towards a model of teaching and learning in which the endeavour is shared. This paper discusses an investigation into the practice of IBL among primary schoolchildren in the setting of the Primary Years Programme of the International Baccalaureate. Three ideas from the work of the philosopher C.S. Peirce are used to provide an epistemological base for analysing the pedagogical practice of IBL: semiotics, reasoning and community of inquiry. Findings are presented under these three headings to illustrate the potency of Peirce's conceptualisation of learning. Drawing in particular on findings from a unit of inquiry on maps and mapping, it suggests an empirical frame for IBL for the use of teachers in the development and assessment of IBL.     

Determinants of salary growth in Shenzhen, China: an analysis of formal education, on-the-job training, and adult education with a three-level model

Using 1996 surveyed data of 1023 employees in Shenzhen, China, this study estimated the effects of three forms of human capital on employee salary, namely formal education, on-the-job training provided by employers, and adult education pursued by employees. Using a hierarchical linear model, the analysis estimated employee monthly salary growth over a maximum of six years due to (a) such temporal factors as work experience and improved performance, (b) individual-level characteristics, and (c) firm-level characteristics. This study found that (a) pre-work formal education was positively associated with salary only at hiring, (b) employees' experience in changing production technology as well as on-the-job training were positively associated with salary increases through improved technical proficiency, formal education was not; (c) manufacturing firms introduced more new production technology than the service sector and provided more on-the-job training, thus improving workers' performance and increasing their salary.