减轻农民负担,推进农村和谐社会建设--衡阳农民负担问题调查的思考

农民负担问题不仅是经济问题,而且是政治问题。农民负担过重由来已久,原因多种,问题严重。必须高度重视,综合治理。统筹城乡发展,增强农民负担能力;加快政府机构改革,强化领导责任,规范涉农收费;严格审批程序,加强资金管理;强化农民负担执法监督,加强农村民主制度建设等是减轻农民负担、加快农村和谐社会建设的有力举措。     

夸美纽斯幼儿体育思想研究

21 世纪以来,我国幼儿体育快速发展,呈现出理论落后于实践的态势,理论研究亟待加强。研究通过文献资料法、历史 研究法、对比研究法发现夸美纽斯的教育思想当中包含丰富的幼儿体育思想：他的自然教育思想主张体育是自然教育的重要 内容,幼儿体育的开展要充分利用自然条件且要遵循自然;他的泛智教育思想主张体育是幼儿的基本权利,是全体幼儿全面发 展的基本手段,还主张不同能力的幼儿应该分班教学。可以获得以下启示：改变重文轻武的传统观念,促进幼儿的全面发展; 遵守幼儿身心发展规律,促进幼儿体育健康可持续发展;积极推广幼儿户外运动,促进幼儿的自然和谐发展;推动农村幼儿体 育事业,促进全体幼儿共同发展。     

政府高等教育投资趋向分析

政府是高等教育主要的投资主体之一 ,文章在介绍了政府高等教育投资原因的基础上 ,从财政性教育经费占GNP的比重、预算内教育拨款的增长及教育投资在各级教育中的分配三方面对我国政府高等教育投资趋向进行了分析     

网络虚拟实践的本质

网络虚拟实践一方面表现为主体对网络的深刻体验,另一方面表现为网络与主体之间的互相建构。虚拟实践是将可能性转换为现实性的创造性实践,从而实现对现实的超越和扬弃。这就是网络虚拟实践的本质特征。     

La_(0.3)Ca_(0.7)Mn_(1-x)V_xO_3体系的有序相研究

通过对La0.3Ca0.7Mn1-xVxO3(x=0.05,0.10,0.134,0.20)体系的磁化强度-温度曲线(M-T)曲线、电阻率-温度曲线(ρ-T)的测量,研究了Mn位掺V对La0.3Ca0.7MnO3体系电荷序和自旋序的影响。结果表明:当0.05≤x≤0.134时,体系存在电荷有序(CO)相,其自旋序随温度降低发生顺磁(PM)-电荷有序(CO)-反铁磁(AFM)变化。当x=0.20时,CO相逐步融化,在40K发生自旋玻璃转变,表现出再入型的自旋玻璃行为,低温下的基态存在着多种复杂的磁相互作用之间的竞争机制。     

笑隐大訢书画美学思想简论

笑隐大訢以华严“法界事事无碍”观,去充分肯定“世俗技艺,无非佛事”,反映出以艺术为佛事的审美价值取向。他很重视画意中要具有能启迪和牵动读者的力量,特别肯定那种具有如董狐之笔的褒贬作用的作品。他强调绘画在佛教教育中的作用,并指出了绘画创作的特殊性。绘画能否描绘公案、表现禅机、呈现悟境？大訢明确指出它们是不能“以笔墨形容”的。大訢倡导书法创作活动应遵“佛制”,不能“溺于文艺”。他以人品论书法,指出能从禅门大师书法的“片纸之中”,窥见其人生境界与人格魁力。他主张书家应自辟门径,在博采众长的基础上,形成自家独特的面目,自成一家法。     

Neuropathology in Alzheimer's disease: awaking from a hundred-year-old dream

For one hundred years after Alois Alzheimer's first report of Alzheimer's disease (AD) in 1906, the pathological hallmarks of the disease, senile plaques and neurofibrillary tangles (NFTs), have been attractive targets for researchers. Therefore, not surprisingly, efforts to understand disease mechanisms have concentrated on the cell biology of amyloid-beta (Abeta) deposition as senile plaques or on the phosphorylation and aggregation of tau as NFTs. However, it now appears that this focus on pathology as a central contributor to disease may be misguided. Indeed, neurons associated with Abeta and NFTs in AD brain show a decrease in oxidative damage relative to those in vulnerable but morphologically intact areas of the brain, suggesting that neurodegenerative lesions are compensatory phenomena, and thus manifestations of cellular adaptation. That Abeta and tau accumulations indicate an age-related physiological reaction to chronic stress calls into question the rationale of current therapeutic efforts targeted toward lesion removal. Moreover, if this concept holds true for pathology in other neurodegenerative diseases, we may need to restructure our thinking and undergo a paradigm shift before substantial progress can be made in therapeutic intervention.     

An adaptive resampling scheme for cycle estimation

Bayesian dynamic linear models (DLMs) are useful in time series modelling, because of the flexibility that they off er for obtaining a good forecast. They are based on a decomposition of the relevant factors which explain the behaviour of the series through a series of state parameters. Nevertheless, the DLM as developed by West and Harrison depend on additional quantities, such as the variance of the system disturbances, which, in practice, are unknown. These are referred to here as 'hyper-parameters' of the model. In this paper, DLMs with autoregressive components are used to describe time series that show cyclic behaviour. The marginal posterior distribution for state parameters can be obtained by weighting the conditional distribution of state parameters by the marginal distribution of hyper-parameters. In most cases, the joint distribution of the hyperparameters can be obtained analytically but the marginal distributions of the components cannot, so requiring numerical integration. We propose to obtain samples of the hyperparameters by a variant of the sampling importance resampling method. A few applications are shown with simulated and real data sets.     

电力需求侧管理中的沟通体系构建

本文对电力需求侧管理(demand side management)中的沟通主体及对象作了初步分析,提出了DSM沟通有效性的表达式及三维模型,并据此构建出DSM有效沟通体系的详细内容,能够为电网企业、发电企业及电力用户在DSM实施过程中进行有效沟通提供借鉴。     

Estimation of the bivariate distribution function for censored gap times

In many medical studies, patients may experience several events during follow-up. The times between consecutive events (gap times) are often of interest and lead to problems that have received much attention recently. In this work, we consider the estimation of the bivariate distribution function for censored gap times. Some related problems such as the estimation of the marginal distribution of the second gap time and the conditional distribution are also discussed. In this article, we introduce a nonparametric estimator of the bivariate distribution function based on Bayes’ theorem and Kaplan–Meier survival function and explore the behavior of the four estimators through simulations. Real data illustration is included.