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Mixed

Why do people wear Kufiya?

Why do people wear Kufiya? Keffiyehs are symbolic of Palestinian resistance and Arab pride. started wearing it in solidarity with his countryman. Often, over his left shoulder, in a triangle…
Mixed

What is the Bering bridge theory?

What is the Bering bridge theory? As of 2008, genetic findings suggest that a single population of modern humans migrated from southern Siberia toward the land mass known as the…
Advices

Can you dye dyed hair white?

Can you dye dyed hair white? Not everyone can dye their hair white. The process works better when you have virgin hair, which means that it has either never been…
Advices

What is quenching in scintillation?

What is quenching in scintillation? One major issue in liquid scintillation spectrometry is quenching. Quenching is defined as the irreversible absorption of decay energy or photons during the energy transfer…
Reviews

What does D amino acid oxidase do?

What does D amino acid oxidase do? D-amino acid oxidase (DAAO) from Rhodotorula gracilis is a flavoenzyme that catalyzes the oxidative deamination of D-amino acid to give the corresponding α-keto…