* This work is supported by National Natural Science Foundation of China under Grant Nos. 61203147, 60973095, 60804013 and 61104092, Fundamental Research Funds for the Central Universities of China under Grant Nos. JUSRP111A44 and JUSRP21011, and Humanities and Social Sciences Youth Funds of the Ministry of Education under Grant No. 12YJCZH218. Abstract This paper is concerned with sampled-data...

In this paper, a design of an unequal split Wilkinson power divider (WPD), with high power split ratio, using non-uniform transmission lines (NTLs) is presented. The design is based on using NTLs in each branch of the divider instead of the conventional uniform ones. Besides the achievement of high power split ratio, the size of the designed WPD is reduced. The design procedure is presented for...

BACKGROUND Subtest and factor scores have typically provided little incremental predictive validity beyond the omnibus IQ score. AIMS This study examined the incremental validity of Wechsler Intelligence Scale for Children - Fourth UK Edition (WISC-IV(UK) ; Wechsler, 2004a, Wechsler Intelligence Scale for Children - Fourth UK Edition, Harcourt Assessment, London, UK) and factor index scores i...

If students are demotivated, confused and look tired in class, one solution is to use new teaching styles in your class to overcome such problems. This is because learners learn in different ways such as hearing, seeing, taking notes, imagining and visualizing, among many others. The paper reports firstly, the impact of teaching and learning style preferences and their match or mismatch on lear...

The large body of goal theory research that has induced performance goals or included them on forced-choice questionnaires has produced coherent results. However, the few studies available on the matter suggest that students rarely generate performance goals spontaneously, if performance goals are defined in normative terms (i.e., outperforming peers). Furthermore, although students may need so...