This paper proposes the hypothesis that the low-frequency variability of the North Atlantic Oscillation (NAO) arises as a result of variations in the occurrence of upper-level Rossby wave–breaking events over the North Atlantic. These events lead to synoptic situations similar to midlatitude blocking that are referred to as high-latitude blocking episodes. A positive NAO is envisaged as being a...

The dichotomy between religion and science does not only occur in the west, but also occurs Islamic civilization after golden age of Islam during caliphate Abbasid dynasty. To get relationship science, researchers focused this research on how Qur'an views brain which is container for human thinking. resulting later a natural theological integration promoted by Ian Barbour. That way, as microcos...

T Ferdous al-Hekma (Paradise of Wisdom) is one of the oldest medical texts in the Islamic world written in Arabic in 850 AD by Ali ibn Raban Tabari. He was a Persian physician who moved from Tabaristan (Mazandaran province of modern day Iran) to Samarra during the reign of the Abbasid Caliph al-Mutawakkil (847-861 AD). We studied the book of Ferdous al-Hekma fil-Tibb, in an attempt to comprehen...

A selection of lustres including 9 century AD polychrome and 10 century AD monochrome Abbasid lustres from Iraq, and 10 to 12 centuries AD Fatimid lustres from Egypt and Syria is studied in the present paper. The selection is based on previous studies that demonstrated that all of them contain metal silver nanoparticles and copper, which, when present, appears either as Cuþ or Cu2þ dissolved in...

The thesis examines the level of historical analysis in the works of two third/ninth century Muslim historians, al-Baladhuri and at-Tabari, including their underlying legal, political and socio-economic concerns as manifested in their narratives. By comparing and contextualising their histories regarding the caliphate of ‘Umar, in relation to their social institutions and scholarly disciplines,...

The expansion of the Umayyad and Abbasid Caliphates (seventh to ninth centuries AD) brought diverse regions from Indus Valley Eurasian Steppe under hegemonic control. An overlooked aspect this political process is subsequent translocation species across ecological zones. This article explores introduction in early Islamic world, presenting first archaeological evidence for domestic water buffal...

This research sheds light on the Hujariyah military unit and its role in Abbasid state since creation 280/893 until elimination 325/936. The Caliph al-Mu‘tadid bi-Allah created to guard caliph his residence, processions, travels wars, for which they received financial benefits quality training. They were distinguished by their efficiency complete discipline, despite an increase numbers. caliphs...