An Integrated Mode Study on College English Teaching of Listening and Speaking: Based on Output-driven, Input-enabled Hypothesis

This paper discusses how college English teaching of listening and speaking can be carried out based on the output-driven, input-enabled hypothesis. The author probes into an integrated teaching mode from the following four aspects, including the change of teacher’s role, the applicability of teaching activity, the cultivation of student’s comprehensive ability to apply language and the objective and effective combination of summative assessment and process assessment. In teaching process, the teacher should be aware of the close interaction between listening and speaking, the stimulation of critical thinking and the importance of culture teaching

The Tradition Defender—Three Women Characters in “There Was a Queen”

William Faulkner’s short story “There Was a Queen” has aroused increasing attention in recent years. Three women characters, Virginia, Narcissa and Elnora, live in this unmanned house and strive to protect the reputation of Sartoris family. As the tradition defender, they stick to the old tradition and sense of morality, repress their natural humanity and live a lonely and empty life until death. Faulkner strongly condemns the inhumane morality which demolishes the natural humanity and at the same time reveals the root of these women’s tragedy with deep sympathy

Impact and features of Chinese realism in painting with focus on tradition and modernity

The relevance of the research topic lies in the fact that Western trends dominate in contemporary the Chinese realistic art, while interest in traditional painting techniques in a realistic direction has practically disappeared. To preserve the national cultural heritage, it is necessary to study more carefully the possibilities of applying traditional ideas in modern realistic painting. The purpose of the study is to identify the features of the traditional foundations of Chinese painting and their applied value for teaching students of modern painting. The objectives of the research are to analyze the scientific literature on the topic, conduct a survey among students to assess the traditions of Chinese re-artistic painting, as well as summarize the results of empirical research. The research methodology includes the methods of the general scientific group (analysis, synthesis, induction, deduction), as well as methods of art history analysis: historical and logical; analogy method; method of formal comparison. In an empirical study, the method of statistical analysis was used, applied using the program Neural Designer, a tool for advanced statistical analysis. The research materials were the results of a survey of 3rd year students (bachelor’s degree). Three groups of students were interviewed, each of which included 25 people: two experimental groups and one control group. The author of the study came to the conclusion that the combination of traditional and modern techniques in realistic painting in the classroom can increase the motivation for learning, develop new technical skills among students studying in the specialty «painting and graphics»

Design of a New CIM-DCSK-Based Ambient Backscatter Communication System

To improve the data rate in differential chaos shift keying (DCSK) based ambient backscatter communication (AmBC) system, we propose a new AmBC system based on code index modulation (CIM), referred to as CIM-DCSK-AmBC system. In the proposed system, the CIM-DCSK signal transmitted in the direct link is used as the radio frequency source of the backscatter link. The signal format in the backscatter link is designed to increase the data rate as well as eliminate the interference of the direct link signal. As such, the direct link signal and the backscatter link signal can be received and demodulated simultaneously. Moreover, we derive and validate the theoretical bit error rate (BER) expressions of the CIM-DCSK-AmBC system over multipath Rayleigh fading channels. Regarding the short reference DCSK-based AmBC (SR-DCSK-AmBC) system as a benchmark system, numerical results reveal that the CIM-DCSK-AmBC system can achieve better BER performance in the direct link and higher throughput in the backscatter link than the benchmark system

Weighted Least Squared Approach to Fault Detection and Isolation for GPS Integrity Monitoring

Reliability of a global navigation satellite system is one of great importance for global navigation purposes. Therefore, an integrity monitoring system is an inseparable part of aviation navigation system. Failures or faults due to malfunctions in the systems should be detected to keep the integrity of the system intact. In order to solve the problem that least squares method detects and isolates a satellite fault for GPS integrity monitoring, in this paper, a weighted least squares algorithm is proposed for satellite fault detection and isolation. The algorithm adopts the diagonal elements of the covariance matrix of GPS measurement equation as the weighted factor. Firstly, the weighted least squares approach for satellite fault detection establishes the test statistic by the sum of the squares of the pseudo-range residuals of each satellite for GPS. Then, the detection threshold is obtained by the false alarm rate of the fault detection, probability density function and visiable satellite number.The effectiveness of the proposed approach is illustrated in a problem of GPS (Global Positioning System) autonomous integrity monitoring system. Through the real raw measured GPS data，based on least squares RAIM method and the weighted least squares RAIM approach, the performance of the two algorithms is compared. The results show that the proposed RAIM approach is superior to the least squares RAIM algorithm in the sensitivity of fault detection and fault isolation performance for GPS integrity monitoring

Phytoestrogen -zearalanol ameliorates memory impairment and neuronal DNA oxidation in ovariectomized mice

OBJECTIVE: The aim of this study was to evaluate the effect of a novel phytoestrogen, α-Zearalanol, on Alzheimer's disease-related memory impairment and neuronal oxidation in ovariectomized mice. METHODS: Female C57/BL6 mice were ovariectomized or received sham operations and treatment with equivalent doses of 17β-estradiol or α-Zearalanol for 8 weeks. Their spatial learning and memory were analyzed using the Morris water maze test. The antioxidant enzyme activities and reactive oxygen species generation, neuronal DNA oxidation, and MutT homolog 1 expression in the hippocampus were measured. RESULTS: Treatment with 17β-estradiol or α-Zearalanol significantly improved spatial learning and memory performance in ovariectomized mice. In addition, 17β-estradiol and α-Zearalanol attenuated the decrease in antioxidant enzyme activities and increased reactive oxygen species production in ovariectomized mice. The findings indicated a significant elevation in hippocampi neuronal DNA oxidation and reduction in MutT homolog 1 expression in estrogen-deficient mice, but supplementation with 17β-estradiol or α-Zearalanol efficaciously ameliorated this situation. CONCLUSION: These results demonstrate that α-Zearalanol is potentially beneficial for improving memory impairments and neuronal oxidation damage in a manner similar to that of 17β-estradiol. Therefore, the compound may be a potential therapeutic agent that can ameliorate neurodegenerative disorders related to estrogen deficiency