Alpha particle types: eventually named alpha, beta, and gamma by Rutherford, based on penetration of objects and deflection by a magnetic field. Alpha rays were defined by Rutherford as those having the lowest penetration of ordinary objects. Rutherford's work also included measurements of the ratio of an alpha particle's mass to its charge, which led him to the hypothesis that alpha particles were doubly charged helium ions (later shown to be bare helium nuclei). In 1907, Ernest Rutherford and Thomas Royds finally proved that alpha particles were indeed helium ions. To do this they allowed alpha particles to penetrate a very thin
Hepatocyte nuclear factor 4 alpha the HNF4A gene are associated with a form of diabetes called maturity onset diabetes of the young (MODY). Increased amplification of hepatocyte nuclear factor 4 alpha has been observed in colorectal cancer. Hepatocyte nuclear factor 4 alpha has been shown to interact with: Hepatocyte nuclear factor 4 alpha Hepatocyte nuclear factor 4 alpha (HNF4A) also known as NR2A1 (nuclear receptor subfamily 2, group A, member 1) is a nuclear receptor that in humans is encoded by the "HNF4A" gene. HNF-4α is a nuclear transcription factor that binds DNA as a homodimer. The encoded protein controls the expression of several genes,