Maple sap, as it comes from the tree is a clear, slightly sweet liquid. The sugar content rages from one to four percent. A device called a hydrometer can be floated in the sap to determine the exact sugar content. Sweeter sap is favored because less water will have to be evaporated to make maple syrup.t takes about forty gallons of this slightly sweet sap, boiled down, to make one gallon of pure maple syrup. The sugarmaker concentrates his attention to the front of the evaporator where the boiling sap is turning a golden color as it approaches being maple syrup.
Overview: Otosclerosis is a common condition affecting the bone of the otic capsule in 7.3% of Caucasian males and 10.3% of Caucasian females. The condition is rare in non-Caucasians, except East Indians, in whom the incidence is approximately the same as persons of northern or central European origin.
Atherosclerosis is often cited as the most common cause of extracranial carotid artery aneurysms, accounting for anywhere between 34% and 70% in published series. Often, these aneurysms occur at or near the carotid bifurcation and are typically fusiform, although saccular aneurysms can also occur in this location.4 These aneurysms are found along the common or internal carotid artery but rarely at the carotid bulb (Fig 1). The patients often have severe hypertension.5 The male-to-female ratio is 1.9:1, in contrast to aortic aneurysms, where the ratio is more heavily weighted towards males.he endovascular approach offers advantages in other situations where open access to the distal extent of the aneurysm is difficult or neck radiation leads to concerns about wound healing. This article outlines the etiology, new diagnostic modalities, and treatment of aneurysms of the carotid artery.