Beta Carotene Beta-carotene is a member of the carotenoid family and has over 500 relatives. Carotenoids are yellow-to-red pigments found in all green plant tissues and in some species of algae. So far 21 different carotenoids have been found in human blood. The most abundant ones are alpha-carotene, beta-carotene, lutein, lycopene, cryptoxanthin and zeaxanthin. A molecule of alpha-carotene, beta- carotene, or cryptoxanthin can be split into two molecules of vitamin A in the body but the conversion
Hadar, also known as Beta Centauri, is the 10th brightest stars (11th as viewed from Earth). Hadar is a blue-white super giant in the constellation Centaurus (Cen). In about 4,000 years, the motion of Alpha Centauri, who’s proper name is Rigel Kentaurus, will carry it close enough to Hadar that they will appear to be a magnificent double star. Because of the distance away from Earth that Alpha and Beta Centauri are (approximately 90 parsecs), they will be an optical double. As they sit today, the
Aim: I will investigate how the field strength varies the deflection of Beta Particles. Preliminary Work I started my preliminary work because, when I started my measurements using 2 coils used in experiments to deflect electrons from and electron gun. While testing for the deflection of beta particles, I found that beta radiation was scattered in a very large cone, I can not get any readings with amount of beta radiation scattering. So I would have to construct some type of shielding for this
Radioactivity Experiments Aim: To determine the penetrating power and the range in air of the three radioactive emissions alpha, beta and gamma. Apparatus: * gm tube, * clamp stand, * the counter thing, * ruler, * set-square Method of penetrating power of Alpha particles, Beta particles & Gamma Rays: The equipment was set up as shown below to measure the penetrating power of each radioactive source. Geiger-Muller Tube Again the measurements were taken without
tests, the psychologists subscribed to the position that one could be quite intelligent, but illiterate or not proficient in the English language. Based on this reasoning, two major tests were developed, the Army Alpha for literate groups, and the Army Beta for illiterates, low literates or non-English speaking (Yerkes, 1921). Both tests were based on the theoretical position that intelligence was an inherited trait, and the assumption was made that native intelligence was being assessed. Each test was
nucleus splits into two smaller nuclei. 3. Alpha, Beta, and Gamma radiation is produced when an unstable nucleus decays. Alpha particles are made of 2 protons and 2 neutrons. This means that they have a charge of +2, and a mass of 4 Alpha particles are relatively slow and heavy. They have a low penetrating power - you can stop them with just a sheet of paper. Because they have a large charge, alpha particles ionise other atoms strongly. Beta particles have a charge of minus 1, and a mass of
short-term US T-bills between 1926-1987. This market premium is consistent with the current academic suggestions and it was used in all calculations of this exercise. The leveraged Beta (Bl) of the lodging division, needed for CAPM, was derived from the following equation: Bl=Bu(1+D/E), where Bu is the unleveraged Beta. Bu was in turn derived from the weighted-average of the Bu's of the lodging businesses given in the case. The weighted-average method rather than a simple arithmetic-average method
different ways. Protein’s secondary structure often contains long stretched out chains of amino acids called strands that line up together to make sheets. These are called beta strands and the sheets are called beta-pleated sheets. A protein may contain either or both alpha helices and beta pleated sheets. Alpha helices and beta pleated sheets are joined by less clear structures often grouped together under the name of coil. Some small proteins may be made of coil. Shape is also important. Proteins
into four states as follows: State Frequency range Amplitude State of mind Delta 0.5Hz - 4Hz high (up to 200uV) Deep sleep Theta 4Hz - 8Hz low (5uV - 20uV) Drowsiness (also first stage of sleep) Alpha 8Hz - 14Hz high (up to 200uV) Relaxed but alert Beta 14Hz - 30Hz low (less than 10uV) Highly alert and focused The dominant frequency in the EEG pattern determines what shall be called the current state of the brain. If the amplitude of the alpha range frequencies is highest, then the brain is said to
profitable stocks amongst a myriad of potential alternatives is a daunting task to say the least. In order to narrow my choices from thousands to two, I examined several aspects of companies I was interested in. Among these were, company overview, alpha and beta ratings, price ratios, price charts, and company headlines. After evaluating this information, I chose Intuit INC (INTU) listed on the NASDAQ and Johnson and Johnson (JNJ) listed on the NYSE. Intuit, Inc. Intuit, Inc. is a provider of small business
At one time, golden rice was just a wild idea that Ingo Potrykus thought up. Optimally, golden rice would improve the lives of millions of the poorest people in the world. The rice would contain beta-carotene which is the building block for vitamin A. However, imagining golden rice was one thing and bringing it into existence was another. He struggled for years with his colleagues to deal with the finicky growing habits of the rice they transplanted to a greenhouse near the foot hills of the Swiss
monitored. There are different classes of people with different intelligence and different "career plans." The social order was divided into the most highly educated, the Alpha+, and then in descending intelligence, the following divisions: Alpha, Beta, Beta -, Gamma, Delta, and Epsilon, which is the last group comprised of those citizens of the lowest intelligence who are necessary to perform society's most menial jobs. Another of the problems with the society which Huxley depicts is that the
HBM: A Dietary Supplement for Building Muscle Three major companies (Twinlab, MetRx, and EAS) currently market the nutritional supplement HMB, or beta-hydroxy beta-methylbutyrate (http://www.sports-nutrition.org/mesomorphosis/3022645.html). HMB has been highly acclaimed since it’s recent market debut by EAS (http://www.eas.com/research/hmb/mindex.html). Many critics have compared it to the wonder-product Creatine Monohydrate. Such a comparison undoubtedly harbors both positive and negative
Golden Rice: Should It Be Our Future? At the Swiss Federal Institute of Technology in Zurich, scientists created golden rice by inserting three genes into a certain rice variety which will in turn produce a greater amount of beta-carotene. This rice has a sort of yellowish hue, which has given the rice its name, golden rice. The rice is still under research and testing before it will reach the markets, which is guessed to be around 2003. If this rice is found to be safe and effective it will
composed of two alpha subunits and two beta subunits linked by disulfide bonds. The alpha chains are entirely extracellular and house insulin binding domains, while the linked beta chains penetrate through the plasma membrane. The insulin receptor is a tyrosine kinase. In other words, it functions as an enzyme that transfers phosphate groups from ATP to tyrosine residues on intracellular target proteins. Binding of insulin to the alpha subunits causes the beta subunits to phosphorylate themselves
Neutrinos are emitted in positron (another type of subnuclear particle) beta decay while the anti-neutrino is emitted from electron beta decay. As a pion decays into a muon, the muon neutrino emerges along side the muon. When a pion decays, a neutral particle must be emitted in the direction opposite that of the muon in order to conserve momentum. The original assumption was that this particle was the neutrino that conserves momentum in beta decay. In 1962, however, researchers proved that the neutrino accompanying
designed bottles. The Hatchery destines each fetus for a particular caste in the World State. The five castes are Alpha, Beta, Gamma, Delta, and Epsilon. Gamma, Delta, and Epsilon undergo the Bokanovsky Process which involves shocking an egg so that it divides to form up to ninety-six identical embryos, which then develop into ninety-six identical human beings. The Alpha and Beta embryos never undergo this dividing process, which can weaken the embryos. The Director explains that the Bokanovsky Process
observing its rate of free fall through the air, and using Stokes' formula for the viscous drag on a slowly moving sphere. The charges thus measured are integral multiples of e. Electrons are emitted in radioactivity <as beta rays> and in many other decay processes. The electron itself is completely stable. Electrons contribute the bulk to ordinary matter; the volume of an atom is nearly all occupied by
are held together by strong peptide bonds. The next level of protein organization is the secondary structure. This is where the primary structure is repeated folded so that it takes up less space. There are two types of folding, the first of which is beta-pleated sheets, where the primary structure would resemble continuous spikes forming a horizontal strip. The seco...
method of fluxions into mathematical analysis; refined the notion of a function; made common many mathematical notations, including e, i, the pi symbol, and the sigma symbol; and laid the foundation for the theory of special functions, introducing the beta and gamma transcendal functions. He also worked on the origins of the calculus of variations, but withheld his work in deference to J. L. Lagrange. He was a pioneer in the field of topology and made number theory into a science, stating the prime number