The nation’s strength, be it social, economic or political depends mostly on the available resources and their proper utilisation. But what is a resource? In simpler terms, resource is the matter or substance which satisfies human wants at a given time and space. Before any element can be designated as resource three basic pre-conditions must be satisfied. They are the knowledge, technical skil...

In this paper, we explore the use of magnetic resonant metamaterials, so called metamagnetics, as dispersive elements for optical pulse shaping. We measure both positive and negative group delay dispersion (GDD) values in a metamagnetic material using the multiphoton interference phase scan (MIIPS) technique and show pulse temporal profiles numerically. The results are compared with finite elem...

www.aafp.org/afp Volume 82, Number 5 ◆ September 1, 2010 Case Scenario I work in a busy office where our relationships are cordial. Recently, a member of our office staff has been putting on quite a bit of weight. Already heavy, she has gained what I estimate to be 50 lb (22.7 kg). She has been having some personal problems at home, but in the office she is efficient, competent, and reliable. M...

We demonstrate experimentally slow and fast light effects achieved simultaneously using Raman gain and pump depletion in an atomic vapor. Heterodyne phase measurements show opposite dispersion characteristics at the pump and probe frequencies. Optical pulse propagations in the vapor medium confirm the slow and fast light effects due to these dispersions. We discuss applications of this techniqu...

Total internal reflection occurs for large angles of incidence, when light is incident from a high-refractive-index medium onto a low-index medium. We consider the situation where the low-index medium is active. By invoking causality in its most fundamental form, we argue that evanescent gain may or may not appear, depending on the analytic and global properties of the permittivity function. Fo...

Auditory training has been shown to be effective in the identification of non-native segmental distinctions. In this study, it was investigated whether such training is applicable to the acquisition of non-native suprasegmental contrasts, i.c., Mandarin tones. Using the high-variability paradigm, eight American learners of Mandarin were trained in eight sessions during the course of two weeks t...

Learning involves adding to the knowledge and skills of a student, and can be divided into a 'process' and an 'end product' or 'outcome'. In formal teaching, the focus is on pre-defined end products and it is hoped that the improvements in knowledge and skills are relatively permanent. However, this is not always the case, which is why it becomes important to examine the concept of 'transfer' m...

Reflection has recently gained increased recognition for its potential to facilitate learning. New insights gained through reflection enable the nurse to respond to clinical situations from a changed perspective. Skill, however, is required in learning to reflect. In this article, the author provides a systematic approach for staff development specialists to use to assist staff in reflecting on...

This note analytically derives the impact that wrong and missing sire information (WSI and MSI, respectively) has on the reliability of predicting merit and gain compared with perfect information. In particular, for small WSI and MSI, WSI was shown to have twice the impact of MSI for both reliability and gain, and the impact of both WSI and MSI increased as the reliability of predicting merit w...

the aim of the study was to investigate the improving effect of garcinia cambogia extract on performance metrics, and serum non-esterified fatty acids (nefa) and c-reactive protein (crp) levels in rats fed with atherogenic diet. thirty, one-year-old, female sprague-dawley rats were randomly assigned to threeexperimental groups of ten animals each. control group was fed with basal diet (2% liqui...