This experimental study evaluated the possible effects of textual input- based enhancement on the acquisition of passive form on Iranian pre-intermediate EFL learners. Sixty Iranian EFL learners at the pre-intermediate level of proficiency were randomly assigned into three groups; two experimental group and one comparison group. The first experimental group received passages in which the passiv...

Enhanced backscattering (EBS) is investigated for a converging-beam geometry. We find that the functional form of the enhanced backscattering cone is preserved under a change of variables that involves the focal length of the lens and the lens-to-sample distance. In absolute terms, the effect of the lens is that the EBS enhancement cone is lowered in magnitude and narrowed in angle. The experim...

This paper reviews the key market and technology drivers associated with the emerging application of light emitting diode (LED) technology in the lighting of buildings. The primary focus of this paper is to present and discuss the evolving marketplace, the technology, and how current market and regulatory pressures will form the key drivers for nearand long-term market penetration for emerging ...

We present a generalized Schiff transformation on electric dipole moments (EDM) in quantum field theory. By the unitary transformation, the time and parity violating interaction igψ̄σμνγ5ψF μν is transformed into a new form, but its nonrelativistic reduction has a unique form, which is free from Schiff’s theorem. With this operator, we estimate the EDM for the Cs case (dCs) with nonrelativistic ...