supernumerary tooth is one of the developmental problems in children. mesiodens is a supernumerary tooth present in the midline between the two central incisors. it usually results in oral problems such as malocclusion, food impaction, poor aesthetics, and cyst formation. the prevalence of mesiodens varies between 0.09% and 2.05% in different studies. this paper reviews current literature on et...

BACKGROUND Pregnancy is life changing, making great demands on women to adapt physically, psychologically, and socially. Social relationships and the support that flow from these provide a critical role in managing health problems in pregnancy. Isolation and lack of care, in contrast, may lead women to experience increased distress during this time. OBJECTIVE This study aimed to explore South...

tire street children phenomenon is categorized as a social disorder that not only includes a great number of children and youngsters as society future capital with danger but also makes the society suffer of harms. therefore, in order to decrease this disorder we should understand its different dimensions and the factors influencing on it to find various scientific and practical solutions for i...

G. E. Forsythe, who edited the translation of Kantorovich's paper, included the following remark about this footnote: "It is not clear to me that Kantorovich's inequality really is a special case of that of Polya and Szego." Examining the relation between the two inequalities more closely we found that this remark is well justified and can be made even more specific in that the inequality of Po...

In this note we give three short results concerning the elliptic Harnack inequality (EHI), in the context of random walks on graphs. The first is that the EHI implies polynomial growth of the number of points in balls, and the second that the EHI is equivalent to an annulus type Harnack inequality for Green’s functions. The third result uses the lamplighter group to give a counterexample concer...