On Landis Conjecture for the Fractional Schr\"{o}dinger Equation

In this paper, we study a Landis-type conjecture for the general fractional Schr\"{o}dinger equation $((-P)^{s}+q)u=0$. As a byproduct, we also proved the additivity and boundedness of the linear operator $(-P)^{s}$ for non-smooth coefficents. For differentiable potentials $q$, if a solution decays at a rate $\exp(-|x|^{1+})$, then the solution vanishes identically. For non-differentiable potentials $q$, if a solution decays at a rate $\exp(-|x|^{\frac{4s}{4s-1}+})$, then the solution must again be trivial. The proof relies on delicate Carleman estimates. This study is an extension of the work by R\"{u}land-Wang (2019).Comment: 44 page

The Effect of Text Authenticity on the Performance of Iranian EFL Students in a C-Test

As part of growing efforts to understand factors affecting c-test this study aims to investigate the effect of text authenticity on the performance of Iranian EFL students in a C-Test. The C-Test is an integrative testing instrument that measures overall language competence, very much like the cloze test. In this study the rule of two has been applied: "the second half of every second word has been deleted, beginning with the second word of the second sentence; the first and last sentences are left intact" (Katona and Dornyei 1993: 35). The research involves 60 college students in their third year, majoring in English Literature at Ershad-Damavand College. This group were randomly selected applying multi-stage sampling. Since the present study intended to investigate the role of two different formats, i.e. authentic and inauthentic texts (text translated from Persian into English), two different tailored C-Tests were made to measure and compare the performances of the participants. Two C-Tests, one with Authentic Text and the other, with Inauthentic Text were administered to this homogenized group comprising 30 subjects. The findings of this study suggest that authenticity has an effect on the performance of learners in c-tests and we should control this variable while devising a c-test

The Solemn League and Covenant of the Three Kingdoms and the Cromwellian Union, 1643–1663.

Kirsteen M. Mackenzie’s monograph is a meticulously researched historical study of the “Covenanted interest” during the British civil wars, Protectorate, and early Restoration in the seventeenth century

Pattern Lattice as a Model for Linguistic Knowledge and Performance

PACLIC 23 / City University of Hong Kong / 3-5 December 200

Development of a Tuition Center Information System

The purpose of the project is to develop a tuition center information system which is data collecting and data processing system built with Visual Basic 6.0 programming language with Microsoft's Access as a database. The main objective of developing this system is to help administrator in managing the unavoidable administrative tasks such as student registration, and fee collecting. Benefit to public is that they can register on-line, check for timetable and tuition fee. And benefit for existing student, they are able to look for personal timetable and fee payment status