Deoxygenation is a global problem in coastal and open regions of the ocean, and has led to expanding areas of oxygen minimum zones and coastal hypoxia. The recent expansion of hypoxia in coastal ecosystems has been primarily attributed to global warming and enhanced nutrient input from land and atmosphere. The largest anthropogenically induced hypoxic area in the world is the Baltic Sea, where ...

Academic research is driven by several factors causing different disciplines to act as “sources” or “sinks” of knowledge. However, how the flow of authors’ research interests – a proxy of human knowledge – evolved across time is still poorly understood. Here, we build a comprehensive map of such flows across one century, revealing fundamental periods in the raise of interest in areas of human k...

intellectuality and politics have a very close and historical linkage with each other. this article beside the redefinition of intellectuality concept, want to study relationship between these two concept through the six periods of west civilization history: 1) greek-roman period until 5th century, 2) first period of christianity from 5th to 11th centuries, 3) second period of christianity from...