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Search Results: 1 - 10 of 401913 matches for " M. Leng "
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A Case Study on Peer-Teaching  [PDF]
Leng Leng Lim
Open Journal of Social Sciences (JSS) , 2014, DOI: 10.4236/jss.2014.28006

This paper reports on the feedback of a case study on peer-teaching activity in a third year university mathematics course. The objective of the peer-teaching activity was to motivate learning and raise student commitment. From the questionnaires conducted, students welcomed the peer- teaching activity and their learning motivation was also improved.

Modelling and Analysis on Noisy Financial Time Series  [PDF]
Jinsong Leng
Journal of Computer and Communications (JCC) , 2014, DOI: 10.4236/jcc.2014.22012

Building the prediction model(s) from the historical time series has attracted many researchers in last few decades. For example, the traders of hedge funds and experts in agriculture are demanding the precise models to make the prediction of the possible trends and cycles. Even though many statistical or machine learning (ML) models have been proposed, however, there are no universal solutions available to resolve such particular problem. In this paper, the powerful forward-backward non-linear filter and wavelet-based denoising method are introduced to remove the high level of noise embedded in financial time series. With the filtered time series, the statistical model known as autoregression is utilized to model the historical times aeries and make the prediction. The proposed models and approaches have been evaluated using the sample time series, and the experimental results have proved that the proposed approaches are able to make the precise prediction very efficiently and effectively.

On the Present Situation and Suggestions of Institutional Education in Universities  [PDF]
Xiangyu Leng
Open Journal of Social Sciences (JSS) , 2017, DOI: 10.4236/jss.2017.510021
University institutions are among the resources of civic education; institutional education is to develop all-round people with good rules and regulations; university institutions haven’t achieved their educational effects in the civic education; this research explores the effect of the institution in university, and the reasons for the poor effect of institution education; we have to strengthen the institutional construction of universities to achieve the goal of civic education through the following routes: One is to re-examine the virtue of university institution and to examine whether the university institution conforms to the rule of law; the other one is to ensure strict implementation of university institution. Only in this way, can university institutional education enhance the civic consciousness of college students.
Physical activity and dietary behaviors of health clinic workers trying to lose weight  [PDF]
Tan Leng Goh, Trever Ball, Janet M. Shaw, James C. Hannon
Health (Health) , 2012, DOI: 10.4236/health.2012.48079
Abstract: Health clinic workers are potential agents of change for weight loss to patients, yet their behaviors are not well known. This study examined physical activity (PA) levels and dietary habits of health clinic workers who were and who were not trying to lose weight. Participants were 64 community health clinic workers (58 females and 6 males). Moderate-to-vigorous intensity (MVI) time spent in PA was assessed by triaxial accelerometry over 7 consecutive days. Dietary habits and weight loss efforts were determined by a food frequency questionnaire. Differences in MVI and nutrition variables were assessed by One-way ANOVA, comparing those trying to lose weight and those not trying to lose weight. 48 out of 64 health clinic workers (approximately 75%) indicated that they were currently trying to lose weight. There were significant differences (p < 0.05) in Body Mass Index (BMI), daily energy (Kcal) and fat (g) intake between those trying to lose weight and those not trying to lose weight. There were no significant differences in MVI, daily sugar intake (g), vegetable and fruit servings, and daily fiber intake (g) between groups. Health clinic workers trying to lose weight appear to be engaging in some appropriate dietary but not PA behaviors.
Estimate the Forest Recreational Values of Zhangjiajie in China Using a Contingent Valuation Method  [PDF]
Zhiming Leng, Yihui Lei
Low Carbon Economy (LCE) , 2011, DOI: 10.4236/lce.2011.22013
Abstract: Zhangjiajie, a World Natural Heritage, is located in Chinese Wuling hinterland and rich in forest resources with cov-erage rate 64.61 percent of forest. Zhangjiajie was listed in World Natural Heritage Catalogue by the UNESCO in 1992 and is one of the most important tourism sites in China. As a leading and pillar industry, the tourism achieved remarkable effects on the economic development, where forest eco-tourism has played an important role. The purpose of this research is to estimate the forest recreational values of Zhangjiajie using a contingent valuation method (CVM). The empirical results show that non-use values account for the majority of the total values of Zhangjiajie. On this basis, the contingency table and Chi square test method are employed to test the related factors influencing tourists’ willingness to pay (WTP). The test results show that educational level and income level are the most important factors influencing WTP.
Analysis of the Relationship between Listed Companies’ Earnings Quality and Internal Control Information Disclosure  [PDF]
Jianfei Leng, Lu Li
Modern Economy (ME) , 2011, DOI: 10.4236/me.2011.25100
Abstract: This article examines the relationship of earnings quality and internal control disclosure information in the sample of 1273 nonfinancial firms in shanghai and Shenzhen Stock Exchange in 2010. Using multiple regression model, we launch an empirical analysis on the relationship between earnings quality and internal control disclosure information. We find a positive relation between earnings quality and internal control disclosure information. The better the earnings quality is, the higher level of the internal control disclosure information will be. This provides a theoretical support to perfect our system of internal control disclosure of information, and to reduce the occurrence of financial fraud.
Internal Control Disclosure and Corporate Governance: Empirical Research from Chinese Listed Companies  [PDF]
Jianfei Leng, Yiran Ding
Technology and Investment (TI) , 2011, DOI: 10.4236/ti.2011.24029
Abstract: The aim of this paper is to research the influence of corporate governance structure on internal control disclosure in a sample of 1309 Chinese listed nonfinancial companies in 2010. We discover that internal control disclosure is positively related to directors’ remuneration, two part-time posts of chairman and general manager, directors’ education level and supervisors’ education level, and it negatively related to the proportion of state ownership. Internal control disclosure is not significantly related to the degree of ownership concentration, board size, the proportion of independent directors and the size of board of supervisors.
Study on the Impact of the Quality of Internal Control on the Performance of M&A  [PDF]
Jianfei Leng, Pangjing Zhao
Journal of Service Science and Management (JSSM) , 2013, DOI: 10.4236/jssm.2013.63025

In order to examine whether the internal control quality affects the M&A performance (stock market return and accounting return) of acquiring firms after the Chinese SOX (Sarbanes-Oxley Act) issued, we select 126 mergers and acquisitions (M&A) deals of Chinese non-financial listed companies on Shanghai and Shenzhen Stock Exchange in 2010 from the CSMAR (China Securities Market & Accounting Research) Database. And we use content analysis to construct a score to quantify the internal control quality of Chinese listed companies. We examine the relationship between the quality of internal controls and the performance of bidding firms with event study and multivariate regression analysis. Our results indicate that the internal control quality of acquirers is positively related to the accounting rates of firms. The higher quality of internal control means that acquirers with better internal control system would be more likely to benefit from M&A activities and create more value for the their own companies and shareholders. Another result is that investors on the stock market are more optimistic about M&A activity lauched by firms which enjoy higher ICQS (the Internal Control Quality Score).

Fault Tree Reliability Analysis for Passive Medium Pressure Safety Injection System in Nuclear Power Plant  [PDF]
Lengshan Leng, Yun Liu
Energy and Power Engineering (EPE) , 2013, DOI: 10.4236/epe.2013.54B051
Abstract: Modern nuclear power plants, both newly designed generation 3 and existing generation 2 reactors, make use of passive safety systems for significant and measurable improvements in safety and reliability. Medium Pressure Safety Injection System (MP-SIS) in Tianwan Nuclear Power Plant is a typical and very important nuclear safety passive system. This paper discusses the reliability of MP-SIS on the basis of Fault Tree Analysis (FTA) with unavailability and Minimal Cut Set (MCS) calculated as two important indicators. The result illustrates that the passive MP-Safety Injection Tank barely contributes to the system’s unavailability and human interactions with Manual Valves and Motor Operated Valves have great negative impact on the reliability.
Research and Discussing on Internal Control Auditing  [PDF]
Jianfei Leng, Lingfen Zhang
Modern Economy (ME) , 2014, DOI: 10.4236/me.2014.57072

In modern China, the development of the economy is rapid; it mainly includes the creation of many companies. However, it is a double edged sword which may lead to economic development, but it also has a lot of problems. This paper mainly regards the corporate internal control system as the research object. Through the Zhong Xin Fu Tai cases, it found problems from specific aspects and the overall level of internal control audit, and identified the problems and then proposed appropriate recommendations for improvement.

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