Electrostatics

to this when either of these particles come near an atom the electrostatic force of the particle and if it is strong enough.The electron is pushed out of orbit around the atom allowing the electron to fly off freely from the atom resulting in the atom now being and ion and being positively charged.This electrostatic force can depend on the distance between the particle and the atom as the further away they are the weaker the electrostatic force will be.it also depends on the amount of energy the…

Helicobacter pylori are spiral and rod-shaped Gram-negative bacteria [1] that colonize the gastric mucosa of about half of the world’s population [2]. This bacterium has been associated with several gastric diseases such as chronic gastritis, peptic ulcer and gastric cancer [3]. Contamination is usually acquired in childhood [4,5], probably by ingesting food or water contaminated with fecal matter [6,7], and, once established, H. pylori has no significant bacterial competitors [8]. In order to…

On 03/08/2018 and 03/22/2018 at 0745, I (Officer Molly Harvey) attended a lab entitled “Impression Evidence”. This lab session was held at the Des Moines Area Community College (D.M.A.C.C.), Ankeny campus, in Building 3W, classroom 02. The presentation was conducted by DMACC Criminal Justice professor Steve Martin. The lab started out with a presentation called Impression Evidence Lab, the powerpoint can be located in my casefile. The presentation started out by giving us knowledge about…

People have got dreamed about going to Mars practically since it was discovered. In the foreseeable future, such mission is actually seems like real possibility. National Aeronautics and Space Administration (NASA) is taking the helm of one of the most significant human endeavors to explore Mars. Unlike the previous programs, Manned Mission to Mars is a one-way ticket. Scientific and technological challenges facing the mission to Mars have been identified as a result of strenuous scientific…

left which makes it unevenly distributed between hydrogen and oxygen. 10. An ion is a molecule or atom that gets either a negative or positive charge as a result of it losing or gaining one or more of its valence electrons. An ionic bond has an electrostatic force between oppositely charged ions in an ionic compound which affects the chemical link between two atoms. An ionic bond is formed when an electron is essentially transferred from one atom of a pair to the other creating ions. A sodium…

peptide bond. A protein usually contain amino acid residues, covalently linked, which spontaneously form a three-dimensional structure, based on the self-recognition of its respective sequence. Covalent bonds (peptide and disulfide), hydrogen bonds, electrostatic interactions, hydrophobic interactions, and weak, nonspecific attractive and repulsive forces are kind of physical forces which related to protein structure. The component of amino acid may be distinguished based on chemical nature of…

tetrahedrally to four carbon atoms by strong covalent bonds. This network is repeated and forms a giant molecule. Hence, Silicon carbide has a giant molecular structure similar to diamond. Properties of Silicon carbide There are strong covalent bonds (electrostatic force of attraction) between the silicon and carbon atoms throughout the giant molecular lattice structure. Large amount of energy is required to break these bonds, resulting in these properties of silicon carbide. High…

to the loss of an electron from the less electronegative particle and the pickup of that electron by the more electronegative molecule, bringing about two particles. These oppositely charged particles feel a fascination in each other, and this electrostatic fascination constitutes an ionic bond. Ionic holding happens between a nonmetal, which goes about as an electron acceptor, and a metal, which goes about as an electron contributor. Metals have few valence electrons, though nonmetals have more…

Abstract In this study, a CO2-respensive GM-AD-HA hydrogel derived from electrostatics crosslinks and supramolecular bond will be produced and studied about its mechanical properties and physiological performance. It is expected to have application in restoring cartilage and controllable delivery of Epirubicin Background of research Hydrogels have crosslinked microstructure and can swell up in water without resolving. Their soft and rubbery nature minimizes inflammatory reactions of the…

ABSTRACT N-Myristoyltransferase (NMT) is an attractive target for the development of novel antimalarial drugs. In this paper, we report a hologram quantitative structure-activity relationship (HQSAR), a comparative molecular field analysis (CoMFA), and a comparative molecular similarity indices analysis (CoMSIA) studies on a series of benzo[b]thiophene-containing selective inhibitors of plasmodial NMT. Two QSAR models were constructed, one for Plasmodium falciparum NMT and another for Homo…