Visual Coherence Breaks within Expository Films

The Effect of Argument Mapping Instruction on L2 Writing Achievement across Writing Tasks and Writing Components: A Case of Iranian EFL Learners

Argument maps as schematic representations of arguments and their logical and evidential relationships are effective diagrams for instruction in education as well as in L2 development. However, their use for teaching L2 writing in EFL contexts has not been adequately studied. Therefore, this study investigated the effect of argument mapping instruction on Iranian EFL learners’ writing achieveme...

DNA damage induced by low-energy electrons: electron transfer and diffraction.

Thin films of the short single strand of DNA, GCAT, in which guanine (G) or adenine (A) have been removed, were bombarded under vacuum by 4 to 15 eV electrons. The fragments corresponding to base release and strand breaks (SB) were analyzed by high performance liquid chromatography and their yields compared with those obtained from unmodified GCAT. From such a comparison, it is shown that, usin...

Structure and function of sub-information in lecture discourse

1. Introduction This paper argues that some parts of a lecture discourse that are commonly disregarded fulfill their own important functions with regard to a subject or purpose of an informative discourse. The ultimate purpose of an informative discourse is to communicate information effectively. There are two general methods to convey information effectively: The first method is to use scienti...

Sharkovsky’s Theorem

We give a proof of Sharkovsky’s theorem that illuminates the doubling structure of the Sharkovsky ordering and that uses the expository device of divide-and-conquer: It breaks into two main parts, each of which again breaks into two parts.

Coherence structure and lexical cohesion in expository and persuasive texts