Islamic Historical Review on Middle Age Lunar Crescent Visibility Criterion

study of meteorological parameters effects on lunar crescent visibility using a genetic algorithm

the islamic calendar is based on lunar months, which begin when the thin crescent moon is actually sighted in the western sky after sunset within a day or so after the new moon. the islamic dates begin at sunset on the previous day. the visibility of the lunar crescent as a function of the moon's age - the time counted from the new moon - is obviously of great importance to muslims. the da...

Apollo 14 Visibility Tests: Visibility of Lunar Surface Features and Lunar Landing

Historical Perspectives of Middle Age Within the Life Span

T o our knowledge, there has never been a historical treatise on the concept of middle age or middle adulthood (we will use these terms interchangeably throughout this chapter) within lifespan developmental psychology and lifespan developmental science. At most, the role of adult development in the middle of the life cycle has been touched on here and there in historical treatises such as Groff...

Non-Muslim Physicians in Middle Age Islamic Society: Attitudes, Actions, and Interactions

Non-Muslim (Dhimmi) physicians were in touch with Muslims more than other non-Muslims, in cities, villages, courts, hospitals, and even houses in the middle ages. Therefore, they have been mentioned in Muslims' minds, languages, and life experiences more than others. This paper seeks to analyze the attitudes of Muslims towards these physicians and to investigate the relationship between Muslims...

A Critical Review: Dementia in Middle Age.

WHEN a middle-aged person is presented for examination because of symptoms of developing dementia, the physician is faced with an interesting, and often an exacting, problem in differential diagnosis. It is proposed to discuss the causes of progressive dementia in such persons and at the same time to make observations from the clinical and pathological viewpoints concerning the individuality of...