Nowadays,chatting programs have become very popular among TV audience,because they are well integrated with information,entertainment and leisure.They can bring a lot of laughter as well as elicitation to the audience...Nowadays,chatting programs have become very popular among TV audience,because they are well integrated with information,entertainment and leisure.They can bring a lot of laughter as well as elicitation to the audience.However,with the sharp increase of chatting programs on television,some programs which are not well designed emerge at an amazing rate.Our au dience always have a bad feeling to these programs and even mislead by them.My paper analyzes some chatting programs from the perspective of Grice's co-operative principles,and gives some suggestion for how to make chatting program go more smoothly.展开更多
The Agulhas Current is a major western boundary current flowing polewards on the southeast coast of South Africa.This analysis assesses its characteristics and suitability to generate power as a source of clean renewa...The Agulhas Current is a major western boundary current flowing polewards on the southeast coast of South Africa.This analysis assesses its characteristics and suitability to generate power as a source of clean renewable energy.On a section of coastline some 400 km long,over a period spanning more than 5 years an extensive set of current measurements was obtained.These data confirmed that south-westward currents with a speed greater than 1.2 m s^(-1)occurred over more than 60%of the recorded time;such ocean current speeds compare very favourably to winds required for energy generation.These currents occurred at the continental shelf break in water depths around 100 m,in the upper 50 m of the water column.Occasional current slowdowns and reversals did occur,with the major influence coming from‘Natal Pulses’,which are large-scale meanders in the Current that temporarily reversed the currents at the measurement sites.However,because of the surface temperature structure of the relevant water masses,such meanders can be identified in satellite imagery giving a few days advance warning of such current reversals.The characteristics of western boundary currents have been known for many years,but at Present,there is no operational system where this source of power is being utilised.It has tremendous potential for renewable energy generation,but is symptomatic of the many engineering challenges that still have to be solved to make such generation economically viable.展开更多
A class of constrained semi-infinite minimax problem is transformed into a simple constrained problem,by means of discretization decomposition and maximum entropy method,making use of surrogate constraint.The paper de...A class of constrained semi-infinite minimax problem is transformed into a simple constrained problem,by means of discretization decomposition and maximum entropy method,making use of surrogate constraint.The paper deals with the convergence of this asymptotic approach method.展开更多
Item Response Theory (IRT) models have been extensively used in the field of education to identify link between a response to a test item and underlying latent capability of the test taker. We demonstrate the benefit ...Item Response Theory (IRT) models have been extensively used in the field of education to identify link between a response to a test item and underlying latent capability of the test taker. We demonstrate the benefit of using IRT model to analyze health data using data from M. chat program such that statisticians can use the method in lieu of traditional methods including Cronbach’s alpha, discriminant analysis and factor analysis. M. chat is a technology based health coaching program and the baseline survey from the participants in the program includes response in different but correlated domains of diet, social habits, leisure practices, mental health, substance abuse, self-sufficiency and medication adherence. We analyzed baseline data from 416 subjects using IRT models. Our results indicated that responses pertaining to alcohol and substance abuse were the most discriminating items with an average discrimination estimate of approximately 4.99 whereas the least discriminating items were the diet habits, with an average estimate of -0.476.展开更多
The objective of this paper is to deal with a kind of fuzzy linear programming problem based on interval\|valued fuzzy sets (IVFLP) through the medium of procedure that turns IVFLP into parametric linear programming v...The objective of this paper is to deal with a kind of fuzzy linear programming problem based on interval\|valued fuzzy sets (IVFLP) through the medium of procedure that turns IVFLP into parametric linear programming via the mathematical programming.Some useful results for the benefit of solving IVFLP are expounded and proved,developed and discussed.Furthermore,that the proposed techniques in this paper allow the decision\|maker to assign a different degree of importance can provide a useful way to efficiently help the decision\|maker make their decisions.展开更多
Gastrointestinal stromal tumors(GIST)are the most common mesenchymalderived tumors of the GI tract.They can occur throughout the GI tract,and the survival time of some patients can be improved by first-line targeted t...Gastrointestinal stromal tumors(GIST)are the most common mesenchymalderived tumors of the GI tract.They can occur throughout the GI tract,and the survival time of some patients can be improved by first-line targeted therapy with imatinib.However,there are some limitations with imatinib treatment.Immunotherapy for GIST has attracted much attention in recent years,and as one of the most abundant cells in the GIST microenvironment,M2 macrophages play an important role in disease progression.They have unique anti-inflammatory and pro-tumorigenic effects and are one target for immunotherapy.This review summarizes the connection between different factors and the programmed death receptor-1/programmed death ligand-1 pathway and M2 macrophages to reactivate or enhance anti-tumor immunity and improve imatinib efficacy,and to provide new ideas for GIST immunotherapy.展开更多
Bayes统计学能够从空中楼阁的理论广泛地落地于自然科学、经济学和社会学等领域,得益于计算机技术和马尔可夫链蒙特卡洛(Markov chain Monte Carlo,简称MCMC)法的发展。文章介绍了MCMC方法在Bayes推断中的应用,主要讨论了MCMC方法中的...Bayes统计学能够从空中楼阁的理论广泛地落地于自然科学、经济学和社会学等领域,得益于计算机技术和马尔可夫链蒙特卡洛(Markov chain Monte Carlo,简称MCMC)法的发展。文章介绍了MCMC方法在Bayes推断中的应用,主要讨论了MCMC方法中的独立抽样和随机游走抽样的Metropolis-Hastings(M-H)算法,利用可读性较强的Matlab程序来实现两种抽样算法,并给出了详细的程序实施过程,分析了两种抽样的优缺点。模拟分析结果表明:独立抽样M-H算法比较容易实施,但是要求建议分布和后验分布的吻合度较高,否则计算效率低下,而且模拟效果不理想;随机游走抽样的M-H算法不需要建议分布接近后验分布,模拟效果也比较好,因此,克服了独立抽样算法的不足,适用范围更广。展开更多
文摘Nowadays,chatting programs have become very popular among TV audience,because they are well integrated with information,entertainment and leisure.They can bring a lot of laughter as well as elicitation to the audience.However,with the sharp increase of chatting programs on television,some programs which are not well designed emerge at an amazing rate.Our au dience always have a bad feeling to these programs and even mislead by them.My paper analyzes some chatting programs from the perspective of Grice's co-operative principles,and gives some suggestion for how to make chatting program go more smoothly.
文摘The Agulhas Current is a major western boundary current flowing polewards on the southeast coast of South Africa.This analysis assesses its characteristics and suitability to generate power as a source of clean renewable energy.On a section of coastline some 400 km long,over a period spanning more than 5 years an extensive set of current measurements was obtained.These data confirmed that south-westward currents with a speed greater than 1.2 m s^(-1)occurred over more than 60%of the recorded time;such ocean current speeds compare very favourably to winds required for energy generation.These currents occurred at the continental shelf break in water depths around 100 m,in the upper 50 m of the water column.Occasional current slowdowns and reversals did occur,with the major influence coming from‘Natal Pulses’,which are large-scale meanders in the Current that temporarily reversed the currents at the measurement sites.However,because of the surface temperature structure of the relevant water masses,such meanders can be identified in satellite imagery giving a few days advance warning of such current reversals.The characteristics of western boundary currents have been known for many years,but at Present,there is no operational system where this source of power is being utilised.It has tremendous potential for renewable energy generation,but is symptomatic of the many engineering challenges that still have to be solved to make such generation economically viable.
文摘A class of constrained semi-infinite minimax problem is transformed into a simple constrained problem,by means of discretization decomposition and maximum entropy method,making use of surrogate constraint.The paper deals with the convergence of this asymptotic approach method.
文摘Item Response Theory (IRT) models have been extensively used in the field of education to identify link between a response to a test item and underlying latent capability of the test taker. We demonstrate the benefit of using IRT model to analyze health data using data from M. chat program such that statisticians can use the method in lieu of traditional methods including Cronbach’s alpha, discriminant analysis and factor analysis. M. chat is a technology based health coaching program and the baseline survey from the participants in the program includes response in different but correlated domains of diet, social habits, leisure practices, mental health, substance abuse, self-sufficiency and medication adherence. We analyzed baseline data from 416 subjects using IRT models. Our results indicated that responses pertaining to alcohol and substance abuse were the most discriminating items with an average discrimination estimate of approximately 4.99 whereas the least discriminating items were the diet habits, with an average estimate of -0.476.
文摘The objective of this paper is to deal with a kind of fuzzy linear programming problem based on interval\|valued fuzzy sets (IVFLP) through the medium of procedure that turns IVFLP into parametric linear programming via the mathematical programming.Some useful results for the benefit of solving IVFLP are expounded and proved,developed and discussed.Furthermore,that the proposed techniques in this paper allow the decision\|maker to assign a different degree of importance can provide a useful way to efficiently help the decision\|maker make their decisions.
基金Supported by the National Natural Science Foundation of China,No.82160842Clinical Research Project of Research Fund of Gansu Provincial Hospital,No.23GSSYD-17.
文摘Gastrointestinal stromal tumors(GIST)are the most common mesenchymalderived tumors of the GI tract.They can occur throughout the GI tract,and the survival time of some patients can be improved by first-line targeted therapy with imatinib.However,there are some limitations with imatinib treatment.Immunotherapy for GIST has attracted much attention in recent years,and as one of the most abundant cells in the GIST microenvironment,M2 macrophages play an important role in disease progression.They have unique anti-inflammatory and pro-tumorigenic effects and are one target for immunotherapy.This review summarizes the connection between different factors and the programmed death receptor-1/programmed death ligand-1 pathway and M2 macrophages to reactivate or enhance anti-tumor immunity and improve imatinib efficacy,and to provide new ideas for GIST immunotherapy.
文摘Bayes统计学能够从空中楼阁的理论广泛地落地于自然科学、经济学和社会学等领域,得益于计算机技术和马尔可夫链蒙特卡洛(Markov chain Monte Carlo,简称MCMC)法的发展。文章介绍了MCMC方法在Bayes推断中的应用,主要讨论了MCMC方法中的独立抽样和随机游走抽样的Metropolis-Hastings(M-H)算法,利用可读性较强的Matlab程序来实现两种抽样算法,并给出了详细的程序实施过程,分析了两种抽样的优缺点。模拟分析结果表明:独立抽样M-H算法比较容易实施,但是要求建议分布和后验分布的吻合度较高,否则计算效率低下,而且模拟效果不理想;随机游走抽样的M-H算法不需要建议分布接近后验分布,模拟效果也比较好,因此,克服了独立抽样算法的不足,适用范围更广。
