What is Diffuse Large B-Cell Lymphoma. Diffuse large B-cell lymphoma is a cancer that starts in white blood cells called lymphocytes. It is also called DLBCL. It usually grows in lymph nodes -- the pea-sized glands in your neck, groin, armpits, and elsewhere that are part of your immune system.
Can you please give me the definitions of homogeneity and isotropy in astronomy terms? This is a good question, because these concepts are a bit subtle. Homogeneous is defined as the same in all locations while isotropic means the same in all directions. Imagine that the whole universe is an infinitely large field with one perfectly symmetrical hill, which you are seated atop. Look around: you see an isotropic universe, since the hill is equally green and equally steep in all directions. But the universe is not homogeneous: it has a hill! These concepts are important because most modern cosmology is based on the cosmological principle, the assumption that, on large scales, the universe is both homogeneous and isotropic.
Isotropic vs Anisotropic. âIsotropicâ and âanisotropicâ are two contrasting adjectives and nouns used to describe the properties of materials and minerals. Both âisotropicâ and âanisotropicâ also contain the element of direction in its description.n the other hand, an isotropic materias or minerals have properties that have the same or uniform properties in all directions. Isotropic materials are said to be independent in direction or manner.