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1.
EMHJ-Eastern Mediterranean Health Journal. 2009; 15 (4): 983-992
em Inglês | IMEMR | ID: emr-157402

RESUMO

A cross-sectional questionnaire study of the correlates of ever-smoking among adolescents was made in Tabuk government schools in Saudi Arabia. Of 1505 students aged 12-19 years, 657 [43.7%] were ever-smokers [i.e. ever tried cigarette smoking, even 1 or 2 puffs]; 65.0% of males and 23.1% of females. In logistic regression analysis significant predictors for ever-smoking were: male sex, belief that smoking helps people feel comfortable in social situations, owning something with a cigarette logo, having pocket money >/= 20 riyals/day, poor school performance and having friends or parents who smoked


Assuntos
Feminino , Humanos , Masculino , Estudos Transversais , Inquéritos e Questionários , Instituições Acadêmicas , Distribuição por Sexo , Cultura , Pais , Estudantes
2.
Egyptian Journal of Pharmaceutical Sciences. 1996; 37 (1-6): 573-584
em Inglês | IMEMR | ID: emr-40823

RESUMO

The chemistry of the flavonoids of Nymphaea hybrida Tach. V. is described for the first time. The flavonol aglycones quercetin and myricetin were isolated from the ether extract while, the flavonol glycosides quercetin 3-glucoside, quercetrin and myricetrin were isolated from the ethyl acetate extract. Physicochemical methods were applied to determine their structure. Isolated flavonol aglycones were tested for antimicrobial, anti-inflammatory, analgesic and ulcerogenic activities


Assuntos
Animais de Laboratório , Flavonas/farmacologia , Plantas/química , Plantas Medicinais/química , Ratos , Carragenina , Disponibilidade Biológica
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