Four tests of fit for the beta-binomial distribution

Tests based on the Anderson–Darling statistic, a third moment statistic and the classical Pearson–Fisher X ² statistic, along with its third-order component, are considered. A small critical value and power study are given. Some examples illustrate important applications.     

Constructing identity with L2: Pronunciation and attitudes among Norwegian learners of English1

This study investigates L2 pronunciation and evaluation of American and British varieties of English among Norwegian adolescent learners. By integrating quantitative sociolinguistics and L2 acquisition, the article investigates stylistic practice in an L2 context. Results from an auditory analysis of four phonological variables and a matched‐guise test are interpreted with reference to speaker commentary. Learners’ self‐expressed accent aims correlate significantly with accent use, but American English is the dominant pronunciation. Results show that both L1 and L2 speakers of English varieties are socially evaluated by the learners; British English is considered the most prestigious model of pronunciation, while American English is associated with informality. These evaluations seem to motivate learners’ pronunciation choices. The data indicate blended use of the English varieties. Learners seem to exploit linguistic resources from English, and reshape and adapt the social meaning of the variables to a local construction of identity.     

Estrogen receptor alpha single nucleotide polymorphism as predictor of diabetes type 2 risk in hypogonadal men

Abstract

Estradiol (E2) is, apart from its role as a reproductive hormone, also important for cardiac function and bone maturation in both genders. It has also been shown to play a role in insulin production, energy expenditure and in inducing lipolysis. The aim of the study was to investigate if low circulating testosterone or E2 levels in combination with variants in the estrogen receptor alpha (ESR1) and estrogen receptor beta (ESR2) genes were of importance for the risk of type-2 diabetes. The single nucleotide polymorphisms rs2207396 and rs1256049, in ESR1 and ESR2, respectively, were analysed by allele specific PCR in 172 elderly men from the population-based Tromsø study. The results were adjusted for age. In individuals with low total (≤11?nmol/L) or free testosterone (≤0.18?nmol/L) being carriers of the variant A-allele in ESR1 was associated with 7.3 and 15.9 times, respectively, increased odds ratio of being diagnosed with diabetes mellitus type 2 (p?=?0.025 and p?=?0.018, respectively). Lower concentrations of E2 did not seem to increase the risk of being diagnosed with diabetes. In conclusion, in hypogonadal men, the rs2207396 variant in ESR1 predicts the risk of type 2 diabetes.     

3-状态部分2-树网络可靠度的一个多项式时间算法

本文利用3-状态设备网络可靠度计算归约公式,结合Wald.J.A.-Colbourn C.J.[1]算法(简称为W-C算法2),给出了3-状态部分2-树网络可靠度的一个多项式时间算法.     

The Extremal Dependence Measure and Asymptotic Independence

Abstract

Extremal dependence analysis assesses the tendency of large values of components of a random vector to occur simultaneously. This kind of dependence information can be qualitatively different than what is given by correlation which averages over the total body of the joint distribution. Also, correlation may be completely inappropriate for heavy tailed data. We study the extremal dependence measure (EDM), a measure of the tendency of large values of components of a random vector to occur simultaneously and show consistency of an estimator of the EDM. We also show asymptotic normality of an idealized estimator in a restricted case of multivariate regular variation where scaling functions do not have to be estimated.     

英汉政治演讲语篇中人称指称对比研究——以24篇英汉政治演讲语篇为例

运用韩礼德的系统功能语法理论（SFG），以中关两国高级领导人的24．篇政治演讲为语料，通过定量分析，对人称指称用法进行对比研究，总结出英汉政治演讲语篇中人称指称的用法和异同。     

近三十年新疆高校少数民族汉语教学研究述评

文章对1979年以来发表在新疆主要刊物和区外核心刊物中的423篇高校少数民族汉语教学研究论文进行了统计分析。在30年的发展中其成绩主要表现在研究基础不断扩大、研究论题走向广泛与细化、研究方法有一定的改进。而存在的主要缺憾是研究内容不深入、研究方法单一,定量和定性研究重视不够等问题。目前新疆高校少数民族汉语教育虽然有较大发展,但在教学上过度依赖对外汉语教学,在研究层次上仍处于相对较低的水平。     

基于DDS和FPGA的多功能信号发生器设计

根据直接数字频率合成技术,以FPGA为核心,设计了一种便携式多功能信号发生器,可产生正弦波、方波、三角波、锯齿波等信号。通过仿真及硬件实验表明,该信号发生器具有信号频率误差小、分辨率高、体积小、质量轻等优点。     

Comments on the special issue of communications in statistics (vol.a8, no. 10) concerned with weather modification experiments

As stated by the Editors of the Special Issue. It was complied with reference to two of my statements; that much of the current weather modification literature is slanted and unreliable. and(2) that progress in the building of a reliable weather modification technology requires an interdisciplinary study of as many completed cloud seeding experiments as possible. The material published in the Special Issue relates to two completed experiments, the Tasmania and the Israeli experiments. It is shown that a realistic appraisal of a completed experiment requires a prolonged effort, including an examination of quite a few relevant publications and, on occasion, Some numerical work on published raw data. It appears that an interdisciplinary reanalysis of the Tasmania experiment can contribute to the development of a reliable cloud seeding technology.     

书评中“I”和“we”用法的对比研究

本文以30篇书评为语料,结合定性和定量的方法对比书评中＂I＂和＂we＂体现的作者权力。研究结果表明,书评中的＂I＂多用于发表评价性言论,而＂we＂则多用于对书的客观性介绍,＂I＂比＂we＂体现的作者权力更大。