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Characteristics of the Tourism Market

Tourism goods and services. Tourism demand is the human need for tourism goods and services. There are two factors that determine the appearance of tourism demand: demand and purchasing power or the ability to pay for that need to use tourism products. Tourism demand is a special and highly ...

Study on botanical characteristics, chemical composition and acetylcholinesterase enzyme inhibitory effects of two species Piper thomsonii (C. DC.) Hook. f. var. thomsonii and Piper hymenophyllum Miq., Piperaceae family - 24

1 H-NMR spectrum of compound PT2 (50 mg) measured in CDCl 3 13 C-NMR spectrum of compound PT2 (50 mg) measured in CDCl 3 DEPT-NMR spectrum of compound PT2 (50 mg) measured in CDCl 3 HMBC-NMR spectrum of compound PT2 (50 mg) measured in CDCl 3 HSQC-NMR spectrum of compound PT2 (50 mg) measured in ...

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