Oil rents significantly contribute to income in OPEC member economies and could have environmental consequences. The present study explores the asymmetrical effects of oil on CO 2 emissions 13 current using a period 1970–2019, also tests Environmental Kuznets Curve (EKC) hypothesis. Long-run results show that economic growth has positive effect, its square term negative effect Algeria, Congo, G...

Factor XI deficiencies are rare. Initially, they were described only in Ashkenazy Jews with two types of characteristic gene mutation. Now, 152 mutations have been identified, mostly in non-Jewish population. We report the case of a deficiency identified in Arabic young girl living in West Algeria; gene sequences showed a type II mutation, frequent in Ashkenazy Jews. May be it is coincidence; b...