Cellular wireless or mobile communications have seen four generations of technological developments. Starting with analog voice with the first, and then moving on to digital voice with the second generation, these generations were each marked with a clear technological advancement. For the third generation, the advancement was in incorporating data on top of a voice-based infrastructure. With t...

as mutually agreed upon by the two major sects (shī‘a and sunnī), divorce is effected only by the husband; and to explain the evidence for this matter, the jurists commonly resort to the prophet’s tradition, “divorce is in the hands of the one who has touched the leg [i.e. in the hands of the husband]” although this tradition is mainly related in the sunnī tradition sources, it is claimed in im...

Ongoing structural change has been a feature of the New Zealand health system throughout the 1990s. As we enter the new millennium a new government is now embarking upon yet another round of reform. I look back on the past few years and consider what lessons might be learned about the process of health policy-making in New Zealand. They include the need for a clear vision about the goals of hea...

science and technology have a vital role in the success and prosperity of human beings and is also called the most important instrument in the economical development. nowadays, no powerful country can get power without science and technology, in other words, no social and economical promotion will be attainable without these two keys. here in this research, in addition to analysis and the intro...

The human brain has remarkable capabilities for encoding and manipulating information about quantities. Understanding how the brain carries out such number and quantity processing is a problem not just for those interested in numerical cognition: it raises important questions that are relevant to understanding development, action, vision, language, executive function and cortical organisation. ...

The vision shows the path to achieve the goals of the organization. Without vision, the direction, the tasks of organization’s units, and their contribution in each of the functions will not be clear. The reason of ineffectiveness in Construction Engineers Organization of Zanjan may be the lack of appropriate vision. In this case, the non-aligned and heterogonous efforts may cause the organizat...