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784.485  Articles
1 of 78.449 pages  |  10  records  |  more records»
In Indonesia, Gynura procumbens (Lour.) Merr., known as Longevity Spinach or Sambung Nyawa, is commonly grown in tropical and subtropical Asian countries. Many biological activities of G. procumbens have been reported. As we know, the composition and conc... see more

Ebony (Diospyros celebica Bakh) is an endemic forest tree species found in Sulawesi whose basic information on its metabolite profile is still lacking. The objective of this research was to separate and identify putatively metabolite present in the leaves... see more

Despite of the many beneficial health effects of strawberry tree (Arbutus unedo L.) honey due to its strong antioxidant activity derived mostly from polyphenols, a detailed phenolic profile has not been previously studied. The aims of this study were to i... see more

Fipronil and Amitraz are broadly used insecticides for the treatment or prevention for animal health, indoor pest control, and commercial crop protection. As the use of Fipronil or Amitraz on food-producing animals was not allowed by the EU legislation, t... see more

Foram apresentados parâmetros de desempenho para um método de cromatografia líquida de ultra eficiência para a determinação de 19 aminoácidos, 10 aminas bioativas e o íon amônio nos queijos Parmesão, Gorgonzola, Prato e Mussarela. As curvas analíticas apr... see more

A new approach to synthesize novel quinoxaline derivatives by a convenient and efficient route. All derivatives were synthesized from readily available benzil, ortho phenylene diamine and chlorosulfonic acid using different amines in ethanol as solvent. T... see more

Perfluoroalkyl substances (PFASs) are a large class of fluorinated aliphatic chemical of anthropogenic origin with high chemical stability even at high temperatures and in presence of alkalis, strong acids or oxidizing agents (Lau et al. 2004). All these ... see more

Total fatty acid analysis is a routine method in many areas, including lipotyping of individuals in personalized medicine, analysis of foodstuffs, and optimization of oil production in biotechnology. This analysis is commonly done by converting fatty acyl... see more

H?i quy LASSO là m?t trong nh?ng phuong pháp h?i quy ph?t du?c d? xu?t b?i Tibshirani vào nam 1996. M?c tiêu c?a LASSO là l?a ch?n và u?c lu?ng tham s? trong mô hình h?i quy tuy?n tính b?ng cách hi?u ch?nh m?t s? h? s? b?ng 0. Ð?c bi?t, LASSO r?t h?u ích ... see more

1 of 78.449 pages  |  10  records  |  more records»