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Physical Sciences and Mathematics Commons

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Full-Text Articles in Physical Sciences and Mathematics

Infra-Red Microwave Spectra, Overtones, Degeneracy And Thermal Populations All In One Diagram, Carl W. David Aug 2018

Infra-Red Microwave Spectra, Overtones, Degeneracy And Thermal Populations All In One Diagram, Carl W. David

Chemistry Education Materials

An old drawing, which had an error in it, is re-presented (corrected) for understanding the relationships in diatomic vibrational-rotational interactions at the introductory level.


Lattice Dynamical Origins Of Structural Negative Thermal Expansion, Connor A. Occhialini May 2018

Lattice Dynamical Origins Of Structural Negative Thermal Expansion, Connor A. Occhialini

Honors Scholar Theses

Most materials, upon heating, expand into a larger volume through an effect known as thermal expansion. However, some materials do not obey this intuitive phenomenon and instead exhibit negative thermal expansion (NTE), which describes the anomalous propensity of these materials to shrink when warmed. Since its discovery, NTE has been found in a wide variety of materials with an array of magnetic, electronic and structural properties. In some cases, the NTE originates from the electronic degrees of freedom in the system or through magnetic phase competition, but we here focus on a particular class of NTE which originates solely from …


Computational Analysis Of Poliovirus Structural Dynamics Using A Coarse-Grained Model, Maneesh Koneru May 2018

Computational Analysis Of Poliovirus Structural Dynamics Using A Coarse-Grained Model, Maneesh Koneru

University Scholar Projects

Though eradicated in most of the world, poliovirus remains a common model virus for a family of mammalian viruses known as Picornaviruses. Despite the development of a vaccination, little is understood about the infection process, particularly the mechanism of cell entry. Experimental studies have attempted to elucidate the dynamics of this process and have proposed pathways focused on VP4, the smallest of the four peptides which makes up the viral capsid, and its interaction with the pentameric interfaces of the five fold axes. This study utilizes coarse-grained molecular dynamics to supplement these proposed mechanisms with simplified simulations which reduce the …