BACKGROUND Leukemia is cancer of the blood or bone marrow, characterized by an unusual increase in white blood cells. It is the sixth most common malignancy in the country in both males and females. The aim of this study was to document some epidemiological features of leukemia in the Northwest of Iran. METHODS The study subjects (n=669, including 377 males and 292 females) comprised all leuk...

Molecular motors are found throughout the cells of the human body and have many different and important roles. These micromachines move along filament tracks and have the ability to convert chemical energy into mechanical work that powers cellular motility. Different types of motors are characterized by different duty ratios, which is the fraction of time that a motor is attached to its filamen...

The paper covers state of the art and latest development of piezoelectric motors at Kaunas University of Technology (Lithuania), that are related to the R&D of laser scanning and deflecting devices, measuring systems, nano-resolution positioning devices on the plane, various applications including teaching aids for Mechatronics studies and even “intelligent” toys. All presented motors are oneor...

introduction: family has a profound influence on personality traits of child. it also makes changes in mental processes of family members. due to the fact that the absence of one parent or both of them has unpleasant effect on mental growth of children and adolescents, this study is looking for the comparison between parented and unparented adolescents in terms of psychological hardiness . meth...

OBJECTIVE Congenital heart disease (CHD) is the most common form of cardiovascular diseases in children. This study was performed from September 2006 to August 2007 in Ardebil, Westnorthern Iran. The aim was to determine the prevalence of heart murmur in newborns and its correlation with CHD. METHODS In a 1-year cross sectional descriptive-analytic study, 2928 newborns were screened for heart...