China University of Geosciences in Beijing

FOUNDED in 1952, China University of Geosciences in Beijing （CUGB） is a national key university under the direct auspices of the Ministry of Education. Over the past 60 years, it has developed from a geological college tbcused on a single discipline to a multi- disciplinary comprehensive university, offering courses in geology, natural resources, environment and geological engineering.

Second National Convention on University Human Rights Education Held in Beijing

The Second China Convention on Human Rights Education in Universities was held on November 6-8 in Beijing. It was jointly sponsored by the Human Rights and Humanitarian Law Institute of the China University of Political Science and Law, the Norwegian Center for Human Rights at the University of Oslo, Norway, the Danish Institute for Human Rights and the Raoul Wallenberg Institute of Human Rights and Humanitarian Law at Lund University, Sweden. More than 90 researchers, scholars and human rights teachers of universities from China and other countries attended.

61st Anniversary of Adoption of Universal Declaration of Human Rights Marked in Beijing

On Dec. 10, 2009, the International Human Rights Day, Scholars and students inBeijing gathered to commemorate the 61st anniversary of the adoption of the Universal Declaration of Human Rights in China University of Political Science and Law. The Human Rights and Humanitarian Law Institute of China University of Political Science and Law, the Law School of Renmin University of China, and the LawSchool of Tsinghua University jointly sponsored the commemorations. The commemoration consisted of four parts including ＂the 61 st Anniversary of the Adoption of the Universal Declaration of Human Rights Photo Exhibition＂, ＂Remembrance of the Universal Declaration of Human Rights＂, and relative academic seminars.

Appraisal of the Production-Oriented Approach： An Introduction

The production-oriented approach （POA） has been developed over a decade. It is driven by the need to improve English classroom instruction for university students in China （Wen, 2016）. It is also motivated by the aspiration to enhance the quality of foreign language education in other similar pedagogical contexts outside China. A volume of research has been done by Wen Qiufang and her research team, to formulate the theory of POA and to test its effectiveness in classroom pedagogy （e.g. Wen, 2016, 2015; Yang, 2015; Zhang, 2015）. At the moment, the POA is still at an early stage of theory building and almost all empirical research is done in the Chinese context. In order to improve the quality of this theory and to make it intelligible to the international academic community, a one-day symposium was held in Beijing Foreign Studies University on May 15, 2017. The symposium was entitled ＇The first international forum on innovative foreign language education in China： Appraisal of the POA＇. In the forum, leading experts in applied linguistics were invited to discuss the strengths and weaknesses of the POA and the directions for its future development. The symposium was the first attempt for the POA research team to discuss its latest work with international scholars. This Viewpoint section collects the responses of four experts who participated in the symposium, listed in alphabetical order. The collection of articles covers three topics related to the POA： its pedagogical application, its use for teacher training, and its research. Alister Cumming is Professor Emeritus and the former Head of the Centre for Educational Research on Languages and Literacies, University of Toronto, Canada. His article focuses primarily on POA research as an exemplary case of design-based research. Rod Ellis is Research Professor in the School of Education at Curtin University, Australia. He discusses POA in terms of pedagogy, teacher training and research, with both critiques and constructive suggestions. Paul Kei Matsuda is Professor of English and Director of Second Language Writing at Arizona State University, the writed states. He responds to POA from the perspective of an expert researcher and teacher of L2 writing. Charlene Polio is Professor and Associate Chair in the Department of Linguistics ＆ Germanic, Slavic, Asian ＆ African Languages atMichigan State University, the writed states. She conceptualises POA as a useful method to address some issues in pre-service teacher development. Overall, the articles in this section are insightful and reader-friendly. They are not only useful for the development of POA in particular, but may also be valuable to a broad range of researchers as they touch upon pertaining issues, as well as emerging topics, in the field of applied linguistics. We therefore find it necessary to make them accessible to a wide readership.

On k-Positive Satisfiability Problem

An algorithm for solving the satisfiability problem is presented. It isproceed that this algorithm solves 2-SAT and Horn-SAT in linear time and k-positiveSAT (in which every clause contains at most k positive literals) ill time O(F.),where F is the length of input F, n is the number of atoms occurring in F, and k isthe greatest real number satisfying the equation x = 2-. Compared with previousresults, this nontrivial upper bound on time complexity could only be obtained fork-SAT, which is a subproblem of k-positive SAT.