lower respiratory illness, infancy, childhood.

Background Headache is a very common complaint in children, and can have a profound impact on school performance [1], being the major cause of absence from school [2], and interfering with other daily activities [3]. The studies based on parental reports may be an unreliable source of information on the frequency of headache in young children; in fact, it has been suggested that almost 36% of t...

exploitation of the full potential of any hybrid requires the possessing of genetically high-purity seeds. commercial soybean hybrids have been developed using a cytoplasmic male sterility (cms) system. in order to avoid reduction in yield caused by using low-purity seeds, development of a simple, rapid, and accurate method for hybrid purity assessment is of great essence and significance. ther...

conclusions parental style could play a different role in conducting risky behaviors among girls and boys. therefore, appropriate parental styles should be used in bringing up children based on their gender. background gender differences play an important role in risky behaviors such as drug use, of the youth. despite having a substantial youth population in the middle east north africa (mena) ...