Ceres commonly refers to:
Ceres may also refer to:
Planets in astrology have a meaning different from the modern astronomical understanding of what a planet is. Before the age of telescopes, the night sky was thought to consist of two very similar components: fixed stars, which remained motionless in relation to each other, and "wandering stars" (Ancient Greek: ἀστέρες πλανῆται asteres planetai), which moved relative to the fixed stars over the course of the year.
To the Greeks and the other earliest astronomers, this group comprised the five planets visible to the naked eye, and excluded the Earth. Although strictly the term "planet" applied only to those five objects, the term was latterly broadened, particularly in the Middle Ages, to include the Sun and the Moon (sometimes referred to as "Lights"), making a total of seven planets. Astrologers retain this definition today.
To ancient astrologers, the planets represented the will of the gods and their direct influence upon human affairs. To modern astrologers the planets represent basic drives or urges in the unconscious, or energy flow regulators representing dimensions of experience. They express themselves with different qualities in the twelve signs of the zodiac and in the twelve houses. The planets are also related to each other in the form of aspects.
Ceres (/ˈsɪəriːz/;minor-planet designation: 1 Ceres) is the largest object in the asteroid belt that lies between the orbits of Mars and Jupiter. Its diameter is approximately 945 kilometers (587 miles), making it the largest of the minor planets within the orbit of Neptune. The thirty-third-largest known body in the Solar System, it is the only one identified orbiting entirely within the orbit of Neptune that is a dwarf planet. Composed of rock and ice, Ceres is estimated to comprise approximately one third of the mass of the entire asteroid belt. Ceres is the only object in the asteroid belt known to be rounded by its own gravity. From Earth, the apparent magnitude of Ceres ranges from 6.7 to 9.3, and hence even at its brightest, it is too dim to be seen with the naked eye, except under extremely dark skies.
Ceres was the first asteroid discovered, by Giuseppe Piazzi at Palermo on 1 January 1801. It was originally considered a planet, but was reclassified as an asteroid in the 1850s when many other objects in similar orbits were discovered.
Dual expression recombinase based (DERB) single vector system is a method of efficient cloning and subcloning of plasmid vectors for high throughput screening (HTS) and verification of protein-protein interactions inside living cells. DERB was developed by Lu JP et al.
Plasmid Vectors are deliberately constructed circular double-strand DNA loops capable of self-amplification and protein production. They are widely used in laboratories and the bio-medical and pharmaceutical industries to produce of DNA or protein in quantity. The DERB vector system consists of a series of vectors, each of which produces two or more proteins which are labeled or tagged for screening and verification of molecular interactions such as protein–protein interactions.
The following characteristics of the vectors ensure highly efficient cloning or subcloning of the protein of interest ORFs into the DERB vectors for high-throughput screening (HTS) and verification of protein–protein interactions after single introducing of the vectors into eukaryotic or prokaryotic cells: