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2,4-DB or 4-(2,4-dichlorophenoxy)butyric acid is a selective systemic phenoxy herbicide used to control many annual and perennial broad-leaf weeds in alfalfa, peanuts, soybeans, and other crops. Its active metabolite , 2,4-D , inhibits growth at the tips of stems and roots.
The BE-4 (Blue Engine 4) [5] is an oxygen-rich [6] liquefied-methane-fueled staged-combustion rocket engine produced by Blue Origin.The BE-4 was developed with private and public funding. [7]
Addiction experts in psychiatry, chemistry, pharmacology, forensic science, epidemiology, and the police and legal services engaged in delphic analysis regarding 20 popular recreational drugs. 4-MTA was ranked 12th in dependence, 10th in physical harm, and 17th in social harm.
The offer of a so-called Knuth reward check worth "one hexadecimal dollar" (100 HEX base 16 cents, in decimal, is $2.56) for any errors found, and the correction of these errors in subsequent printings, has contributed to the highly polished and still-authoritative nature of the work, long after its first publication.
Computer science is the study of computation, information, and automation. [1] [2] [3] Computer science spans theoretical disciplines (such as algorithms, theory of computation, and information theory) to applied disciplines (including the design and implementation of hardware and software).
Traditional homelands of the Indigenous peoples of the Philippines Overview of the spread & overlap of languages spoken throughout the country as of March 2017. There are several opposing theories regarding the origins of ancient Filipinos, starting with the "Waves of Migration" hypothesis of H. Otley Beyer in 1948, which claimed that Filipinos were "Indonesians" and "Malays" who migrated to ...