Victor L. Roy A. As Latter-day Saints study world history of the past few centuries, they naturally look at these historical events from their own contemporary perspective. Indeed, to better appreciate some key historical events of recent centuries, one should step back—way back in time—and look at these occurrences from the ancient perspective of Abraham, the patriarch-prophet, who received unique covenant promises from God. The ancient patriarch-prophets taught the gospel to succeeding generations throughout the ages see Moses —23, 27—30; , 16, 19— Eventually, Abraham sought for the blessings, truths, and priesthood that his ancestors had received from God see Abraham —4.
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Scattering , in physics , a change in the direction of motion of a particle because of a collision with another particle. As defined in physics, a collision can occur between particles that repel one another, such as two positive or negative ions, and need not involve direct physical contact of the particles. Experiments show, as in the Figure , that the trajectory of the scattered particle, whatever the angle of deflection, is a hyperbola and that as the bombarding particle is aimed more closely toward the scattering centre the angle of deflection increases. In probing the interior of the atom , the physicist Ernest Rutherford passed a stream of alpha particles through a thin sheet of gold foil. The alpha particles were emitted by a radioactive material and had enough energy to penetrate an atom; although most passed right through the gold foil, some were deflected in a way that indicated that the scattering was produced by a Coulomb force. Because the alpha particles are positively charged and the electrons in the atom are negatively charged, it followed that there must be a large positive charge inside the atom to create the Coulomb force by interacting with the alpha particles. In this way the nucleus of the atom was discovered.
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Published on February 22, by Shona McCombes. Revised on March 9, A literature review is a survey of scholarly sources on a specific topic. It provides an overview of current knowledge, allowing you to identify relevant theories, methods , and gaps in the existing research.
Application of Bradford's Law of Scattering is one of the bibliometric law, which is used most commonly in bibliometric research. A study carried out on the data of journals cited by Ph. To examine the applicability of Bradford's Law of Scattering, study include periodical containing references collected form theses during the period Rank list was prepared and Annals of Library Science and Documentation took top place with citations followed by College and Research Libraries with , and Herold of Library Science with citations were the most preferred journals.