Comet

lines effectively after inducing cytotoxicity and genotoxicity by two cytogenetic parameters; micronucleus test and alkaline comet assay. In this experimental study, we will elucidate the potential of 5-ALA/PDT to target DNA and induce DNA damage to the genetic materials of MCF-7 and HepG2 cancer cells and record cytotoxicity and genotoxicity by micronucleus test and alkaline comet assay. 2. Materials and Methods All chemicals, including 5-ALA, were purchased from (Sigma/Aldrich, VA, USA), unless mentioned

The Formation of Prebiotic Compounds on Early Earth and in the Solar System By Trevor Harrison GE 70A: Evolution of Cosmos and Life Scientists have long sought to understand the origin of prebiotic compounds and its transition into self-replicating biological structures, both as an explanation for life’s emergence on earth and as an assessment of the abundance of life in the solar system and the galaxy. In 1952, Stanley L. Miller and Harold C. Urey performed experiments demonstrating that the

gaining much mainstream traction. It web site features a prominent link that encourages visitors to “ own a team “, the sort of ambition that’s ordinarily beyond the reach of sports fans trolling for schedules and games states. Michael Neuwirth, the comet founding owners and general managers, is a forty-six-year-old insurance-company vice-president from new jersey, who lucked out when the Carolina Diamonds folded after last season, leaving N.P.F with just three teams and a schedules in need of

will be at any given time ("Tumbling Stone 12 - Comet Orbital Determination"). The process finding the path of comets are the combination of conics and physics. First, an astronomer assumes that the vector in which the comet travels, expressed through 1/a, is equal to zero. Then, the astronomer fits the positions the comet crosses with theoretical parabolic curves until the correctly identify the path the comet goes through ("Tumbling Stone 12 - Comet Orbital Determination"). This process is represented

was essential to our survival, as our ancestors used the stars that would tell them when seasons would be coming and when they should set up camp or leave. They also noticed comets in the night sky and almost every ancient civilization thought that comets foretold disaster. However, a boy named Edmond Halley witnessed a comet in 1664 and was more fascinated than afraid. At 20 years old Halley sailed to an island near West Africa to draw the first star map of the

Alabama Virtual Library. N.p., n.d. Web. 15 Nov. 2016.). Father-and-son scientists Luis and Walter Alvarez discovered a distinct layer of iridium that corresponds to the precise time the dinosaurs died. With this information it suggests that a comet, asteroid or meteor impact could be the cause of the extinction of

Even though dark matter is in existence we don’t have the instruments available to detect it yet. A theory suggests that dark matter is what actually makes up a large portion of our universe. Even though we can’t detect it, we know dark matter exists because it can interact gravitationally with visible matter and radiation. A professor from New York stated that dark matter plays a large role in causing geological catastrophes as well as mass extinction. ` An example of when dark matter played a

extension Heaney, likens himself to ‘a comet.’ Not any comet, but a comet ‘that [is] lost.’ Though the comet is part of a wide universe, it is alone. This echoes Heaney’s concerns. He feels as though he is part of the wider community of Ireland, yet he feels psychologically separated from all. He feels his voice cannot be heard, amongst the masses, that it is covered by ‘those million tons of light.’ A hyperbole is used here to depict the insignificance of the comet in universe, and therefore Heaney in

old earth and Christian scientist believe in a young earth. But there seems to be more logical evidence for a young earth. Young earth explains soft tissue found in fossils, the sun paradox, evidence of sediment on the seafloor, and to the age of a comet. It fills in many gaps that secular scientist cannot fill. I hope that you take into account the evidence, but it is ultimately up to you to choose to believe

Discovery of Uranus William Herschel started as a musician who composed several symphonies. Later he found an interest in mathematics and astronomy. Because of this interest, he eventually found a planet that became known as Uranus. As a quick background, William Herschel was born in Germany November 15, 1738. As stated above, William was interested in music and composed several symphonies. Later in life, he found an interest in astronomy and mathematics. “He acquainted with great English astronomer