نتایج جستجو برای: 5011 8
تعداد نتایج: 655125 فیلتر نتایج به سال:
Background—The prevalence of childhood asthma is increasing but few studies have investigated trends in asthma severity. We investigated trends in asthma diagnosis and symptom morbidity between an eight year time period in a paired prevalence study. Methods—All children in one single school year aged 8–9 years in the city of SheYeld were given a parent respondent questionnaire in 1991 and 1999 ...
BACKGROUND The prevalence of childhood asthma is increasing but few studies have investigated trends in asthma severity. We investigated trends in asthma diagnosis and symptom morbidity between an eight year time period in a paired prevalence study. METHODS All children in one single school year aged 8-9 years in the city of Sheffield were given a parent respondent questionnaire in 1991 and 1...
Aquaculture is the fastest-growing animal food production sector and expected to become increasingly important meet future demands. As a landlocked country, Austria’s self-sufficiency rate for fish rather low with 6% in total 48% freshwater fish. Therefore, order enable sustainable growth of while avoiding negative impacts on aquatic ecosystem other uses, we developed aquaZone, decision support...
Background: Replacing all or part of synthetic preservatives with natural antimicrobials in pharmaceutical formulations can be a way to improve the safety and quality products. Evaluating preservative effectiveness essential oils is valuable since most them are generally known safe. Objectives: In current research, efficacy Eucalyptus globulus oil was investigated as an antimicrobial agent indi...
نمودار تعداد نتایج جستجو در هر سال
با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید