Seminars

“Dark Matter and Neutrinos in the Black Hills’.
 
Dr. Peggy Norris
Deputy Director of Education & Outreach
Sanford Underground Laboratory
 
The Deep Underground Science and Engineering Laboratory (DUSEL), planned for construction in the former Homestake Gold Mine in Lead, SD,  is in the preliminary design phase as a Major Research Experimental Facility Construction project of the National Science Foundation. An overview of the project scope for the facility and major physics experiments will be presented.
 

This week's seminar will feature research talks from three of our graduate students:

   Barbara Medvar
Creighton University, Physics Department
“The Make-up of Mercury ”
 
 
Freddy Martinez
Creighton University, Physics Department
"Spectral Analysis of Broad Line Quasars using Chandra"
 
 
Christian Akpanya
Creighton University, Physics Department
“THE USE OF REACTOR NEUTRONS TO MEASURE THE ESSENTIAL ELEMENTS IN THE LEAVES, FRUITS, STEMS, AND ROOTS OF SOLANUM TORVUM PLANT”
 

Effects of Classroom Acoustical Environments on Student Achievement

Lauren M. Ronsse

Architectural Engineering Program, Univ of Nebraska - Lincoln

Physics Faculty Research Overview
Physics Department Seminar
Friday, September, 2010   
Hixson-Lied G-59, 12:30 – 1:20

Masters Thesis Defense

Department of Physics

Photo- and Bio-Physical Characterization of Novel Lipophilic Fluorescent Dyes
For Multicolor Neurotracing and Transcellular Lipid Diusion Measurements

by
Jeffrey Tonniges

Abstract:

Lipophilic Fluorescent dyes are used to trace neuronal connections and probe cellular activities by insertion into and lateral diusion within cell membranes. The photophysical and biophysical properties of two sets of lipophilic Fluorescent dyes were characterized to study: 1) how to increase the number of distinct colors in a single specimen for neurotracing, and 2) how the hydrocarbon chain length aects the mechanism for lipid diusion in living cells. To address these inquiries, fluorescence spectroscopy measurements of a multicolored dye set and diusion measurements in cultured cells of a set of dyes with various hydrocarbon chain lengths were performed. Two-photon excitation action cross sections for the multicolored dye set and their use in designing multicolor imaging protocols will be discussed. Transcellular diusion and FRAP measurements of the chain-variant dye set will be presented and the role of the hydrocarbon chain length on lipid diusion will be explored.

Professor David W. McLaughlin, Professor of Mathematics and Neural Sciences, Provost at NYU, and a 1966 Creighton graduate who was one of the first to complete our Bachelor of Science in Physics degree, will be presenting the Physics Seminar this week on Friday, April 9th, at the usual time: 12:30 p.m.  Dr. McLaughlin will be here to receive this year's Alumni Merit Award from the College of Arts and Sciences. His talk is entitled

“Modeling the Dynamics of the Cortex: Spatio-Temporal Cortical Activity”

A search for stable sources of Cosmic Rays using a ground-based muon detectors

Freddy Martinez

Physics Department, Creighton University

First Physics at the LHC, ALICE

Dr. Bjorn Nilsen

Monte Carlo Simulation Characteristics of Tracer Diffusion for Concentrated Lattice Gases with an Interfacial Energy Step

A physicist at the Collegium: A Colloquy between Faith and Reason
Dr. Gintaras Duda
Department of Physics, Creighton University