T1
In magnetic resonance, the time for 63% of longitudinal relaxation to occur; the value is a function of magnetic field strength and the chemical environment of the hydrogen nucleus; for protons in fat and in water, in a 1.5T magnet, about 250 msec and 3000 msec respectively. A t1-weighted image will have a bright fat signal.
Seed plants are vascular plants. They differ from the other vascular plants in producing seeds that germinate into a new..
Plant organs are comprised of tissues working together for a common function. The different types of plant tissues are m..
The movement of molecules (specifically, water and solutes) is vital to the understanding of plant processes. This tuto..
Dinosaurs represented a major turn in the evolutionary development of organisms on Earth. The first dinosaurs were presu..
Earth was created around 4.5 billion years ago and life began not long after. Primitive life likely possessed the elemen..
A still body of water may be disturbed by a variety of factors. One of them is wind. In fact, it is considered as the pr..