Increased pressure relating to employment schedules, finances, and family responsibilities, as well as the high-cost of post-secondary education and the limited availability of scholarships, has created an increased need for distance education. Distance learning research has defined certain problematic areas which must be addressed in an effort to enhance the distance learning experience. This ...

A set of experiments on widely different web sites examined the technical accuracy and practicalities of different approaches to using an emulated dial-up link instead of true 56kbps (V.90) dial-up to measure end-user web site experience. The experiments showed that attempts to emulate V.90 dial-up connections by using simple calculations, bandwidth-restricted routers, or sophisticated network ...

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today, governments are looking for efficient and innovative mechanisms in different departments of administrative system. it seems that old approaches are not effective anymore and public bureaucracies have faced with necessities of change, transformation, creativity, initiation, and, innovation. in this regard, introducing entrepreneurship theories within public sector is a relative new approa...

Background & Aim: Satureja khuzistanica Jamzad. is an aromatic and medicinal perennial plant belongs to family mint (Lamiaceae). It is also an Iranian exclusive endemic species, its essential oil components are widely used in medicinal, culinary, and perfume industries. Experimental: Flowers were collected in 10 regions in Khuzistan and Lorestan provinces, Iran at early anthesis durin...

Background & Aim: Satureja khuzistanica Jamzad. is an aromatic and medicinal perennial plant belongs to family mint (Lamiaceae). It is also an Iranian exclusive endemic species, its essential oil components are widely used in medicinal, culinary, and perfume industries. Experimental: Flowers were collected in 10 regions in Khuzistan and Lorestan provinces, Iran at early anthesis durin...

Hypertension is a major risk factor for the cardiovascular diseases. One of the factors contributing to blood pressure is peripheral vascular resistance. Vascular stiffness plays a key role in developing the hypertension, leading to increased systolic blood pressure and pulse pressure. from Avicenna s perspective, the blood pressure caused by 1- Increased blood volume 2- Warm heart dystemperame...

This paper introduces a novel collaborative filtering recommender system for ecommerce which copes reasonably well with the ratings sparsity issue through the use of the notion of selective predictability and the use of the information theoretic measure known as entropy to estimate the same. It exploits the predictable portion(s) of apparently complex relationships between users when picking ou...