The effects of residential locality on parental and alloparental investment among the Aka foragers of the central African Republic.

Middle Childhood among Aka Forest Foragers of the Central African Republic : A Comparative Perspective

Interpersonal Aggression among Aka Hunter-Gatherers of the Central African Republic Assessing the Effects of Sex, Strength, and Anger

Sex differences in physical and indirect aggression have been found in many societies but, to our knowledge, have not been studied in a population of hunter-gatherers. Among Aka foragers of the Central African Republic we tested whether males physically aggressed more than females, and whether females indirectly aggressed more than males, as has been seen in other societies. We also tested pred...

The Impact of Foreign Trade on Residential Investment in Iran Economy

Countries typically use government fiscal and central bank monetary policy tools to achieve economic growth and development goals. On the other hand, due to the growing importance of international trade and interdependence of economies and also due to the importance of housing in the country's economy, this study will pay to examin the effects of monetary and fiscal policy variables and the imp...

Islamic Finance and the Fluctuations of Investment and Output: The Role of Monetary Policy

The recent global financial crisis once again revealed the harmful effects of interest-based contracts in the conventional financial system. Islamic finance, as an alternative financial system, discourages interest rate and debt financing. This paper investigates the effects of two financial systems, namely the conventional and Islamic systems, on macroeconomic variables. To achieve this goal, ...

High prevalence of cannabis use among Aka foragers of the Congo Basin and its possible relationship to helminthiasis.

OBJECTIVES Little is known about cannabis use in hunter-gatherers. Therefore, we investigated cannabis use in the Aka, a population of foragers of the Congo Basin. Because cannabis contains anthelminthic compounds, and the Aka have a high prevalence of helminthiasis, we also tested the hypothesis that cannabis use might be an unconscious form of self-medication against helminths. METHODS We c...