Search results
Results from the WOW.Com Content Network
In the mathematical field of topology, a section (or cross section) [1] of a fiber bundle is a continuous right inverse of the projection function. In other words, if E {\displaystyle E} is a fiber bundle over a base space , B {\displaystyle B} :
Schematic of energy levels involved in two photons absorption. In atomic physics, two-photon absorption (TPA or 2PA), also called two-photon excitation or non-linear absorption, is the simultaneous absorption of two photons of identical or different frequencies in order to excite an atom or a molecule from one state (usually the ground state), via a virtual energy level, to a higher energy ...
Once in the body, tPA has can cause the desired thrombolytic activity (see figure), or be inactivated and removed. In the bloodstream tPA has a half-life of 4 to 6 minutes. [39] tPA can be bound by a plasminogen activator inhibitor, resulting in inactivation of its activity. The protein is then removed from the bloodstream by the liver.
Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!
[124] [125] The Mathematics Subject Classification has a section for "general applied mathematics" but does not mention "pure mathematics". [14] However, these terms are still used in names of some university departments, such as at the Faculty of Mathematics at the University of Cambridge.
AOL latest headlines, entertainment, sports, articles for business, health and world news.
The orbits' envelope of the projectiles (with constant initial speed) is a concave parabola. The initial speed is 10 m/s. We take g = 10 m/s 2. We consider the following example of envelope in motion. Suppose at initial height 0, one casts a projectile into the air with constant initial velocity v but different elevation angles θ.
Another class of problems asks whether copies of a given polyomino can tile a rectangle, and if so, what rectangles they can tile. [36] These problems have been extensively studied for particular polyominoes, [ 37 ] and tables of results for individual polyominoes are available. [ 38 ]