Medicinal plants are the local heritage with global importance playing a vital role in world health care system of developing countries. Calotropis procera (Asclepiadaceae), a giant milk weed, is known for its pharmacological importance for centuries. The coarse shrub is a very promising source of anticancerous, ascaricidal, schizonticidal, anti-microbial, anthelmintic, insecticidal, anti-infla...

[1] Flat-floored, quasi-circular depressions on the southern residual cap of Mars have been observed to expand rapidly. Analysis of the size distribution combined with modeling of the growth process yields information about the ages of these features. We report on properties of a population of these features within a selected study area. We find a narrow size distribution that indicates a commo...

P to the historical fertility transition, which took place in most of Europe and North America between the late eighteenth and early twentieth centuries, married women could expect eight or more births. Today many women do not have children at all. For centuries, the elasticity of fertility with respect to incomes was positive. Today it is zero or even negative. The fertility transition forms a...

Underground coal mining was finished in the north-eastern region of Hungary after its operation more than two centuries, as a result economic, technical, environmental and political reasons. A fairly significant part reserve is still available to extract. With different perspective mining, considering ways utilization (such chemistry, etc.) extraction material can be cost effective. In past few...

the purpose of this article is to identify the various mystical interpretations of horuf-e-moqatta’e (separated letters) in qur’an. ten mystical interpreters-the qur’an-al-azim, haghayegh-al-tafsir, lata’ef- al-esharat, kashf-al-asrar, ara’es-al-bayan, ta’vilat, rouh-al-bayan, manzum e safi, bayan-al-sa’adah- have been selected from several centuries and their explanations, after entries about ...

the morphological river evolution at long-time (centuries and even millennia) and large spatial scale (watersheds of several square kilometres) can be described by means of simplified 1d models, able to simulate the variation of bed elevation and grain size composition at non-detailed scales, involving a reduced computational effort. the erosion and deposition phenomena acting along rivers can ...

We analyze reconstructions of large-scale surface temperature patterns in past centuries for insights into long-term climate change in the Middle and Near East. The temperature reconstructions, which have been described in detail previously, are based on calibration of widespread networks of high-resolution proxy and long instrumental/historical records against the 20th century global instrumen...

The primes, which are the fundamental building blocks of the multiplicative structure of the integers, have fascinated mathematicians at least since the time of the ancient Greeks. Euclid already knew that there are infinitely many primes, and his elegant proof is still commonly used today. Further progress in studying primes was made over the succeeding centuries. However, many very basic ques...