Robust test for independence in high dimensions

This article develops a new test based on Spearman’s rank correlation coefficients for total independence in high dimensions. The test is robust to the non normality and heavy tails of the data, which is a merit that is not shared by the existing tests in literature. Simulation results suggest that the new test performs well under several typical null and alternative hypotheses. Besides, we employ a real data set to illustrate the use of the new test.     

Spatio‐temporal Ornstein–Uhlenbeck Processes: Theory,Simulation and Statistical Inference

Spatio‐temporal modelling is an increasingly popular topic in Statistics. Our paper contributes to this line of research by developing the theory, simulation and inference for a spatio‐temporal Ornstein–Uhlenbeck process. We conduct detailed simulation studies and demonstrate the practical relevance of these processes in an empirical study of radiation anomaly data. Finally, we describe how predictions can be carried out in the Gaussian setting.     

Estimation of variance in bivariate normal distribution after the preliminary test of homogeneity

A preliminary test estimator of variance in the bivariate normal distribution is proposed after the Pitman–Morgan test of homogeneity of two variances. The bias and mean square error of the estimator are derived. The relative efficiency (RE) of the preliminary test estimator is studied. Computations and 3D graphs of RE for different parameters are analyzed. In order to get the maximum RE, recommendations of the significance level for the preliminary test are given for various sample sizes by using the max–min criterion.     

Impact of a continuing professional development intervention on midwifery academics’ awareness of cultural safety

Background

Cultural safety in higher education learning and teaching environments is paramount to positive educational outcomes for Aboriginal and/or Torres Strait Islander (hereafter called First Peoples) students. There is a lack of research evaluating the impact of continuing professional development on midwifery academics' awareness of cultural safety.

First‐Price Auctions With General Information Structures: Implications for Bidding and Revenue

We explore the impact of private information in sealed‐bid first‐price auctions. For a given symmetric and arbitrarily correlated prior distribution over values, we characterize the lowest winning‐bid distribution that can arise across all information structures and equilibria. The information and equilibrium attaining this minimum leave bidders indifferent between their equilibrium bids and all higher bids. Our results provide lower bounds for bids and revenue with asymmetric distributions over values. We also report further characterizations of revenue and bidder surplus including upper bounds on revenue. Our work has implications for the identification of value distributions from data on winning bids and for the informationally robust comparison of alternative auction mechanisms.     

A Study of a Network Meeting: Exploring the Interplay between Inner and Outer Dialogues in Significant and Meaningful Moments

The present study is part of a series of qualitative studies focusing on dialogic practice in southern Norway. In this article, we present a qualitative study of a network meeting focusing on the interplay between the participants' inner and outer dialogues. The network meeting is between an adolescent boy, his mother and two network therapists, the same adolescent case discussed previously in this journal by Bøe et al. ( 2013 ). The aim of this study is to explore how the interplay between inner and outer dialogues contributes to significant and meaningful moments for the interlocutors. A multiperspective methodology is used that combines video recordings of a network meeting and participant interviews with text analysis. Our research found the interplay has an important role in understanding the emergence of significant and meaningful moments in therapy. A one‐sided focus on participants' utterances or inner dialogues was insufficient to explain their significance and meaning to the interlocutors. A dialogical approach provides a theoretical frame and concepts that are useful in investigations of therapeutic conversations.     

Jewish power and powerlessness: Prague Zionists and the Paris Peace Conference

This article explores how perceptions of Jewish power shaped the negotiations between Czechoslovak leaders and Jewish minority representatives at the time of the Paris Peace Conference. In the aftermath of the First World War, Prague-based Zionists embarked on a mission to convince Czechoslovak elites that attacks on Jews were detrimental to the internal stability of the new state and to Czechoslovak interests abroad. As Edvard Bene?, the head of the Czechoslovak delegation in Paris, worked to cultivate an image of the new state as more “Western” and “civilised” than other successor states – a strategy meant to garner international support for Czechoslovak territorial demands and its projected absorption of large minority populations – Jewish activists encouraged his uncertainty with regard to Jews' influence on Western audiences and statesmen. They did so in order to convince him to accept their demands for special protection clauses for the new country's Jews. The paper thus shows that the unprecedented victimisation of Jews and the upsurge in antisemitism during and after the war coexisted with a new bold and public Jewish activism. Yet, Jewish leaders did not in the end have the ability to convince Bene? and his colleagues to give in to international Jewish demands for special protection. Instead, they sought to cultivate a strategic alliance between the state's Czech elite and the Jewish minority which centred on the claim that Czechoslovakia was a particularly welcoming and tolerant place for Jews, an image that would evolve into a significant component of the myth of Czechoslovakia as an island of democracy in Eastern Europe.     

新疆渭干河下游古绿洲沙漠化考

作者经实地考察及有关史料考证,发现新疆渭干河下游有一片面积约800平方公里的遭受沙漠化的古绿洲,古绿洲上遗存众多的古城址、遗址。文中对于这片古绿洲唐代的土地开发状况及其沙漠化发生的时间、原因和机制,做了探讨。     

“四清”运动研究综述

该论文综述了国内外学术界对“四清”运动的研究概况。介绍了“四清”运动的历史资料、出版著作以及学术论文，分析和总结了“四清”运动的起源、过程、经验教训、’历史评价和反思等问题。