Junior Design: Automatic Page Turner

This project details the design and build process of an automatic pageturner. The primary goal of this project is to design and manufacture a product that not only has an efficient operation, but is easy to use for people with disabilities and minimal assistance. The device will consist of a mechanical structure to support the book, an electrical system to facilitate the turning of pages in both directions, and additional features to support comfort and readability, such as LED reading lights

THE DEVELOPMENT OF CODES FOR THE CALCULATION OF CI DENSITY MATRICES, PART II.

$^{a}$ This work was supported by the Mathematical, Information, and Computational Sciences Division subprogram of the Office of Computational and Technology Research, U.S. Department of Energy, under Contract W-31-109-Eng-38, Field Work Proposal No. 56694, B\&R No. KJ-01-01-03-0.Author Institution: Argonne National Laboratory, Argonne; Stevens Institute of Technology, HobokenIn this presentation the development of two codes whose purpose is the evaluation of reduced density matrices are described. The first code, pciden, is a parallel implementation of the program ciden. The latter program was developed to calculate the 1- and 2- particle density matrices resulting from a multireference configuration interaction (MRCI) calculation, the most computationally expensive step in the calculation of MRCI energy gradients as it is implemented in the COLUMBUS suite of programs of which ciden is a part. Before the ciden code could be parallelized a large number of modifications were necessary mainly for the purpose of load balancing. Even before attempting to parallelize the ciden code these modifications have allowed it to be applied to a wider range of problems than was previously possible. The parallelization itself follows the same general philosophy to that which was used in the development of the pciudg program and is still in progress. The purpose of the second code, density, is to calculate the 1-particle density matrix from a spin-orbit configuration interaction (SOCI) calculation. This density matrix can be used in the same manner as standard 1-particle density matrices with the added feature that the effects of spin-orbit coupling can be determined. The density matrix calculated by the density program has been used in a few of the more common applications of a 1-particle density matrix

Neurotransmitter receptors in brain regions of acrylamide- treated rats. I: Effects of a single exposure to acrylamide.

A single oral dose of acrylamide (25 or 50 mg/kg) increased the level of striatal 3H-spiroperidol binding in six week old male rats. This enhanced dopamine receptor activity was specific since treatment caused no significant changes in glycine, serotonin, and muscarinic cholinergic binding. At the highest acrylamide dose tested (100 mg/kg), elevations of the medullary glycine and frontal cortical serotonin receptors were also found. Pretreatment of animals with a blocker of hepatic mixed function oxidase (SKF 525a) or a thiol blocker (methylmercuric chloride) prevented the acrylamide-induced elevation of striatal spiroperidol binding, indicating that the causative agent was a secondary metabolite of acrylamide. Apomorphine-induced motility was significantly attenuated by 24 hr predosing with acrylamide, suggesting a change in the sensitivity of the dopamine receptor. The behavioral relevance of observed biochemical changes was thus shown by the altered response of treated animals to apomorphine

Neurotransmitter receptors in brain regions of acrylamide- treated rats. I: Effects of a single exposure to acrylamide.

A single oral dose of acrylamide (25 or 50 mg/kg) increased the level of striatal 3H-spiroperidol binding in six week old male rats. This enhanced dopamine receptor activity was specific since treatment caused no significant changes in glycine, serotonin, and muscarinic cholinergic binding. At the highest acrylamide dose tested (100 mg/kg), elevations of the medullary glycine and frontal cortical serotonin receptors were also found. Pretreatment of animals with a blocker of hepatic mixed function oxidase (SKF 525a) or a thiol blocker (methylmercuric chloride) prevented the acrylamide-induced elevation of striatal spiroperidol binding, indicating that the causative agent was a secondary metabolite of acrylamide. Apomorphine-induced motility was significantly attenuated by 24 hr predosing with acrylamide, suggesting a change in the sensitivity of the dopamine receptor. The behavioral relevance of observed biochemical changes was thus shown by the altered response of treated animals to apomorphine

THE CHEMICAL PROPERTIES OF EUROPIUM AND AMERICIUM

Author Institution: Argonne National Laboratory, Chicago; Department of Chemistry, The Ohio State University; Department of Chemistry and Chemical Biology, Stevens Institute of TechnologyTo support on-going experimental research directed towards the separation of actinides and lanthanides from nuclear waste, theoretical studies on the molecular chemistry of representative elements from these families have been initiated. Ionization potentials, optical spectra (including $f \to f$ transitions), and chemical affinities for chloride are compared for isoelectronic cations of Eu and Am. Comparisons are made with experimental data. Multi-configuration SCF and configuration interaction (CI) methods were implemented utilizing ab-initio averaged relativistic effective core potentials (AREPs), spin orbit operators (Sos), and cc-pVDZ Gaussian basis sets to represent valence orbitals. The basis sets were optimized for a balanced representation of the $+2$ and $+3$ oxidation states. The importance of utilizing so-called small core AREPs, allowing the outermost occupied s, p and d valence electrons to be included explicitly in the ab-initio calculations, will be discussed. Calculations of each of the above chemical properties will be contrasted at various levels of computational sophistication, in particular, the effects of including SO within the valence electrons as well as the number and type of configurations included in the CI. Because of the size and computational complexities associated with such large-scale ab-initio SOCI calculations on systems with many open shells, parallel processing codes are critical to effective implementation