OBJECTIVE To compare the effectiveness and safety of the methylphenidate produced in Iran (Stimdate®) with its original brand (Ritalin®) in children with Attention deficit hyperactivity disorder (ADHD). METHODS In this double-blinded randomized clinical trial, 30 patients with ADHD who were 6 to 16 years old, were divided into two groups: 15 in Stimdate® and 15 in Ritalin® group. The two grou...

La gazelle dama Nanger (Pallas, 1766) dans l'art rupestre du Sahara. Vingt-cinq images rupestres préhistoriques originales provenant Sahara en Libye, au Niger, Mauritanie et Algérie sont présentées, illustrant de manière évidente ou probable des gazelles (Mammalia, Bovidae: 1766)). Une étude la littérature sur les nordafricain sert à interpréter ces nouveaux exemples. Des procédés stylistiques ...

Blood samples collected from Grant's gazelles (Nanger granti) in Kenya were screened for hemoparasites using a combination of microscopic and molecular techniques. All 69 blood smears examined by microscopy were positive for hemoparasites. In addition, Theileria/Babesia DNA was detected in all 65 samples screened by PCR for a ~450-base pair fragment of the V4 hypervariable region of the 18S rRN...

Bovids represent a convenient group for studying the acoustical variation, functions and evolution of vocal communication. Among bovids, a wide spectrum of vocal adaptations and examples of parallel evolution with cervids and humans can be found (Fitch & Reby 2001; McElligott et al. 2006; Frey et al. 2007, 2008a,b). For instance, in the goitred gazelle (Gazella subgutturosa), a strong sexual di...