Ideal white can be yellowish or bluish, but not reddish or greenish

Cardinal directions of color space.

Thresholds for detecting changes in color are raised following viewing a field sinusoidally modulated in color over time. This effect is highly selective. For example, thresholds for detecting reddish and greenish changes from white are raised following viewing a field varying in a reddish-greenish direction, but not after viewing one varying in a yellowish-bluish direction. Similarly threshold...

to be or not to be that’s the question-3

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Artery or vein: to be or not to be?

“Not Everything That Is Faced Can Be Changed, but Nothing Can Be Changed Until It Is Faced”: A Response to Recent Commentaries

Rheum turkestanicum rhizomes possess anti-hypertriglyceridemic, but not hypoglycemic or hepatoprotective effect in experimental diabetes

Objective: Rheum turkestanicum (R. turkestanicum) rhizomes have been used in Iranain traditional medicine as an anti-diabetic agent. The purpose of the present investigation was to evaluate the anti-diabetic and antioxidant activities of R. turkestanicum rhizome extract in streptozotocin-induced diabetic rats.Materials and Methods: Diabetes was induced by a single intraperitoneal injection of 5...