Around the year 1900, there was an emerging scientific interest in man and human behaviour. Among other things, this involved a concern about quality of population, especially regarding children. A whole movement, Child Study Movement, emerged both Uni­ted States Europe, revolving around Different experts were united their state population children developed variety models methods to improve ch...

ashura tragic event and the martyrdom of imam hussein (as) are considered the greatest events in the history of islam after ghadir event because imam (as) held the great epic in ashura day and sacrificed himself and his family, near kin and his companions for the survival of islam. this human event had influence on poets’ souls as they made an attempt to compose lyrics about imam (as). some of ...

Although the enucleate conducting cells of the phloem are incapable of protein synthesis, phloem exudates characteristically contain low concentrations of soluble proteins. The role of these proteins and their movement into and out of the sieve tubes poses important questions for phloem physiology and for cell-to-cell protein movement via plasmodesmata. The occurrence of protein turnover in sie...

Coarse Particles and Dust Storm Mortality In a paper titled "Episodes of High Coarse Partide Concentrations Are Not Associated with Increased Mortality," Schwartz et al. (1) concluded that "coarse particles from windblown dust are not associated with mortality risk." The authors seem to have overlooked the medical literature on the health effects of the historic U.S. dust storms of the dust bow...

We show that strictly abnormal geodesics arise in graded nilpotent Lie groups. We construct such a group, for which some Carnot geodesics are strictly abnormal and, in fact, not normal in any subgroup. In the 2-step case we also prove that these geodesics are always smooth. Our main technique is based on the equations for the normal and abnormal curves, that we derive (for any Lie group) explic...