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Blood clotting, or coagulation, is an important process that prevents excessive bleeding when a blood vessel is injured. Platelets (a type of blood cell) and proteins in your plasma (the liquid part of blood) work together to stop the bleeding by forming a clot over the inju翻线戏ry. Typically, your body will naturally dissolve the blood clot after the injury has healed. Sometimes, however, clots form on the inside of vessels without an obvious injury or do not dissol范县辛庄李氏ve naturally. These situations can be dangerous and require accurate diagnosis and appropriate treatment.




[2]Klaus-Peter Gast . Louis I. Kahn: Complete Works.Deutsche Verlags-Anstalt,Munich.2001.pp.96-101.

如果将这些不同的几何——正方形,√2矩形,和黄金分割矩形进行叠加,人们可以得到一个由线构成的复杂的“翻线戏(Cat's cradle)” ,它们决定了住宅中不同元素的位置和几何关系。




[3]HeinzRonner,Sharad Jhaveri and Alessandro Vasella . Louis I.Kahn: Complete Work 1935-74,Institute for the History and Theory翻线戏 of Architecture,Swiss Federal Ins范县辛庄李氏titute ofTechnology,Zurich,1977,pp.133-135.

Clots can occur in veins or a线戏rteries, which are vessels that are part of the body's circulatory system. While both types of vessels help transport blood throughout the body, they each functi翻线大桥on differently. Veins are lo翻线戏w-pressure vessels that carry deoxygenated blood away from the body's organs and back to the heart. An abnormal clot that forms in a vein may restrict the return of blood to the heart and can result in pain and swelling as the blood gathers behind the clot. Deep vein thrombosis (DVT) 范县辛庄李氏is a type of clot that forms线戏 in a major vein of the leg or, less commonly, in the ar翻线大桥ms, pelvis, or other large veins in the body. In some cases, a clot in a vein may detach from its point of origin and travel through the heart to the lungs where it becomes wedged, preventing adequate blood flow. This is called a pulmonary (lun翻线戏g) em范县辛庄李氏bolism (PE) and can be extremely dangerous.