Atomic number

The atomic number or proton number of a chemical element is the number of protons found in the nucleus of every atom of that element. The atomic number uniquely identifies a chemical element. It is identical to the charge number of the nucleus. In an uncharged atom, the atomic number is also equal to the number of electrons.
A nucleogenic isotope, or nuclide, is one that is produced by a natural terrestrial nuclear reaction, other than a reaction beginning with cosmic rays. The nuclear reaction that produces nucleogenic nuclides is usually interaction with an alpha particle
A pseudomeningocele is an abnormal collection of cerebrospinal fluid (CSF) that communicates with the CSF space around the brain or spinal cord. In contrast to a meningocele, in which the fluid is surrounded and confined by dura mater, in a
Berkeley-Illinois-Maryland Association
The Berkeley-Illinois-Maryland Association (BIMA) was a collaboration of the Universities of California, Illinois, and Maryland that built and operated the eponymously named BIMA radio telescope array. Originally (1986) the premier imaging instrument in
Endogenous preferences
Endogenous preferences are preferences that cannot be taken as given, but are affected by individual internal responses to the external state of affairs. They are interdependent, in part determined by social institutions, marketed advertisement, and
Physical disorder
A physical disorder is often used as a term in contrast to a mental disorder, in an attempt to differentiate medical disorders that have an available mechanical test, from those disorders which have no laboratory or imaging test, and are diagnosed only by
USS Tullibee
USS Tullibee has been the name of more than one United States Navy ship, and may refer to:USS Tullibee (SS-284), a submarine commissioned in 1943 and sunk in 1944 USS Tullibee (SSN-597), a submarine in commission from 1960 to 1988
Gynecologic Oncology Group
The Gynecologic Oncology Group (GOG) is a non-profit organization funded by the National Cancer Institute with the purpose of supporting research for the prevention and treatment of all gynecologic cancers, such as ovarian cancer, cervical cancer
National Wilms Tumor Study Group
The National Wilms Tumor Study Group (NWTS) is a cancer research cooperative group in the United States formed to study a type of kidney tumor that affects children called Wilms' tumor. In 2001, NWTS merged with several other pediatric oncology
Twist (poker)
Twist is poker jargon for a round with specific rules which is sometimes used in the poker variant stud poker
Chalceus guaporensis
Chalceus guaporensis is a species of freshwater fish in the family Chalceidae that inhabits northern South America. Alongside C. epakros and C. spilogyros, it was added to the genus Chalceus in the year 2004