strategies of strengthening family foundation mohaddesi h , yusofi m* received: 22 april, 2010 accepted: 27 july, 2010 abstract background & aims: family is the first basis for psychosomatic growth and socialization of individuals in a community. family members who are uninformed or reckless about their rights and responsibilities will make a field for different psychosocial damages such as vio...

One-dimensional carbon nanotubes (CNT), which are mechanically strong and flexible, enhance strength of the host metal matrix. However, the reduction of ductility is often a serious drawback. Here, we report significantly enhanced plastic flow strength, while preventing tensile ductility reduction, by uniformly dispersing CNTs inAlmatrix. Nanoscale plasticity and rupturing processes near CNTs w...

background: the purpose of this study was to investigate the effects of two types of rehabilitation techniques, including aerobic and strengthening exercises on patients with knee rheumatoid arthritis (ra). methods: 48 male patients with knee ra were randomly assigned into 3 groups, including aerobic exercises, strengthening exercise, and control. the two first groups completed their treatment ...

ABSTRACT The majority of concrete buildings in the regions of high seismicity in Iran do not meet seismic code requirement, and many of these buildings are vulnerable in severe earthquakes. Concerns for seismic strengthening of concrete grew considerably in the recent years, and has been accelerated since the Bam earthquake 2004. This paper presents the results of experimental and analytical st...

When microscopic and macroscopic specimens of metals are subjected to cyclic loading, the creation, interaction, and accumulation of defects lead to damage, cracking, and failure. Here we demonstrate that when aluminum single crystals of submicrometer dimensions are subjected to low-amplitude cyclic deformation at room temperature, the density of preexisting dislocation lines and loops can be d...