background: testing and teaching are interrelated in education process; using various kinds of tests, teachers are able to anticipate the strong and weak points of learning in students, their progress and their accomplishment. the influence of test on teaching and learning is commonly referred to as washback. testing washback is a twisted concept that becomes even more complex under a various i...

Particleboard and solid wood stakes were treated with either an isocyanate or phenol formaldehyde resin and exposed in soil beds comprising three different soil types and two moisture contents. The treatments resulted in a marked improvement in the dimensional stability of particleboard but had no effect on solid wood. Higher moisture uptakes in stakes exposed in sandy soils indicated that the ...

Most upper-management and sales force personnel, as well as workers in many other jobs, are paid based on performance, which is widely perceived as motivating effort and enhancing productivity relative to non-contingent pay schemes. However, psychological research suggests that excessive rewards can in some cases produce supra-optimal motivation, resulting in a decline in performance. To test w...