Many researchers have conceptualized smoking uptake behavior in adolescence as progressing through a sequence of developmental stages. Multiple social, psychological, and biological factors influence this process, and may play different functions at different points in the progression, and play different roles for different people. The major objective of this paper is to review empirical studie...

the human brain is composed of several interconnected, functionally distinct structures and much debate has surrounded the basic question of how these structures evolve. brain development begins in early gestation. between 4 weeks and 9 months, brain undergoes rapid development. there are six stages of nervous system development. brain increases connections between birth and 21 years of age. ab...

The purpose of this investigation was to study and compare the electrophoretic patterns of optic lensproteins of different species of domestic animals at pre- and post-natal ages. Optic lenses were removed from the embryo or adult sheep, cattle, goat, camel and chicken at the slaughter-house then homogenized and subjected to sodium dodecylsulfate polyacrylamide gel electrophoresis (SDS-PAGE). I...

in this study, the morphological and histological studies of male and female gonads in mudskipper, periophthalmus waltoni koumans, 1941 from helleh estuary (bushehr province, southwestern iran) were performed to determine its gonadal development stages and histo-morphological characteristics. sampling was done from april 2010 to march 2011 and a total of 81 individuals were collected by hand ne...

These are called psychosexual stages because each stage represents the. In describing human personality development as psychosexual Freud meant to. Psychosexual Development Detailed Summary Psychodynamic PDF Downloads. Psychodynamic Approach Simply Psychology Sigmund Freuds Theories.Sigmund Freud, was the founder of psychoanalysis and psychoanalytic theories. These theories are based on the bel...

Groups and their members can be seen as experiencing a ‘life cycle’, characterised by a sequence of developmental stages. Life cycle models typically present these stages as phenomena of group experience. This paper experiments with the application of Personal Construct Psychology to phases of group development, describing these as processes of construing and elaboration made more vivid by the ...

Unlike in the past where industrial policy was either focused on creation and growth of stateowned firms or alternatively consisted merely of broadly functional policies without consideration for firm or entrepreneurial specifics, the requirement now is that future industrial policy ought to be a nuanced partnership between entrepreneurs and the state. In this paper we outline some consideratio...