Scientific Research Publishing

Read full paper at: http://www.scirp.org/journal/PaperInformation.aspx?PaperID=52480#.VJoWlcCAM4 Author(s)   Amresh Shrivastava 1 , James Boylan 2 , Yves Bureau 2 , Avinash De Sousa 3 , Nilesh Shah 3 Affiliation(s) 1 Department of Psychiatry, University of Western Ontario, Lawson Health Research Centre, London, Canada . 2 Department of Psychiatry, University of Western Ontario, London, Canada . 3 Department of Psychiatry, Lokmanya Tilak Municipal Medical College, Mumbai, India . ABSTRACT Current understanding of mental disorders is based upon “biopsychosocial model”. Research also suggests what biological changes take place in a particular disorder as well as nature of risk which arises from psychological,...

Read full paper at: http://www.scirp.org/journal/PaperInformation.aspx?PaperID=50703#.VEmeuFfHRK0 Author(s) Antonina V. Trukhina , Aleksandr F. Smirnov Affiliation(s) Department of Genetics and Biotechnology, St. Petersburg State University, St. Petersburg, Russia . ABSTRACT Sex determination system in birds is characterized by a homo-(Neognatae) and heteromorphic ( Paleognatae ) sex chromosomes. Heterogametic sex is female (ZZ/ZW system). DMRT 1 gene is a gene regarded as a main male sex determining factor in this group of animals. The question remains about the participation of other factors (HEMOGEN, AMH etc.) in appearance of testis, and the role of steroid hormones in formation of ovaries. Complete sex ...