blood-brain barrier, n barrier formed by epithelial cells in the capillaries that supply the brain and central nervous system. This barrier selectively allows entry of substances such as glucose, some ions, and oxygen, while blocking entry of other substances.lood-brain barrier (BBB). Etymology: AS, blod + bragen + ME, barrere. an anatomic-physiologic feature of the brain thought to consist of walls of capillaries in the central nervous system and surrounding astrocytic glial membranes. The barrier separates the parenchyma of the central nervous system from blood.
Vegetable Oil vs. Canola Oil. Canola and vegetable oils are both plant-based oils that are liquid at room temperature. They're both beneficial for heart health, and are commonly used in cooking and baking. Therefore, it may be difficult to determine which type of oil is the better option for you -- but subtle differences do exist. What Oils Are Made From. The main difference between vegetable and canola oils is the type of plant they are made from. Canola oil is extracted from rapeseed plants, which are related to mustard and cabbage plants. Vegetable oil on the other hand, is no other than soybean oil in many cases.
1 Control weeds early. 2  A combination of pre-seed weed control and one in-crop application before the 4-leaf stage of the crop is often enough. 3  Canola that gets off to a good start with weed competition reduced early in the season rarely sees an economic benefit to a second in-crop application of herbicide. Use weed control options in rotation crops to target weeds that are harder to manage â cleavers and volunteer canola, for example â in canola. 2  Use principles of integrated weed management to reduce the development and build up of herbicide-resistant weeds, and improve overall results from herbicides.