پژوهش حاضر به بررسی این مسأله می‌پردازد که چگونه نوعِ متد آموزشی می‌تواند بر میزان اضطراب زبانی دانشجویان زبان‌های خارجی تأثیر بگذارد. یک گروه 40 نفره از دختر و پسر در سطح پیش‌دانشگاهی به‌عنوان جامعه آماری انتخاب شدند. آموزش زبان فرانسه دو هفته‌ی اول، طریق گرامر-ترجمه انجام شد. پایان هفته تست تعیین مقیاس کلاس خارجی: FLCAS، بعمل آمد. دوم نوع رویکرد کنشی تغییر یافت. پس مجدداً فراگیران نتایج حاصله ن...

A new NIST luminous flux scale has been realized using the integrating sphere method, on which theoretical and experimental studies were previously conducted and reported. The NIST 2 m integrating sphere was modified to add an opening and an additional baffle to apply this method. Flux from an external source (1000 W quartz halogen lamp) is introduced into the sphere through a limiting aperture...

[This page intentionally left blank. ] This document has been prepared by the National Institute of Standards and Technology (NIST) and describes research in support military and overseas voting for the Election Assistance Commission and the Technical Guidelines Development Committee. It does not represent a consensus view or recommendation from NIST, nor does it represent any policy positions ...

We propose several possible metrics for measuring the strength of an individual password or any other secret drawn from a known, skewed distribution. In contrast to previous ad hoc approaches which rely on textual properties of passwords, we consider the problem without any knowledge of password structure. This enables rating the strength of a password given a large sample distribution without ...

We present a method to boost the performance of probabilistic generative models that work with i-vector representations. The proposed approach deals with the nonGaussian behavior of i-vectors by performing a simple length normalization. This non-linear transformation allows the use of probabilistic models with Gaussian assumptions that yield equivalent performance to that of more complicated sy...

Learning, especially in the case of language acquisition, is not an isolated process; there is ever-present competition between words and objects in the world. Such competition is known to play a critical role in learning. Namely, the amount and variability of competing items during word learning have been shown to change learning trajectories in young children learning new words. However, very...