Undergraduates improve upon published crystal structure in class assignment

Undergraduates improve upon published crystal structure in class assignment.

Recently, 57 undergraduate students at the University of Michigan were assigned the task of solving a crystal structure, given only the electron density map of a 1.3 Å crystal structure from the electron density server, and the position of the N-terminal amino acid. To test their knowledge of amino acid chemistry, the students were not given the protein sequence. With minimal direction from the...

Using Visualization Tools to Improve Undergraduates' Understanding of Crystal Structure

In order to understand many of the important ideas in materials science, students need to have some understanding of crystal structure and symmetry. But many undergraduate students find crystal symmetry a difficult and highly abstract subject. One of the reasons for this is the use of difficult 2-D representations of complicated 3-D structures. Although many teachers use physical models to help...

Not second class: the first class II MHC crystal structure.

Crystal structure assignment for the heavy-fermion superconductor UPt3

Understanding the normal and superconducting states in UPt3 depends critically on its crystal structure. Based on high-energy x-ray diffraction and transmission electron microscopy, we have determined that the crystal structure of UPt3 is trigonal, not hexagonal as traditionally held. Its trigonal structure provides an interpretation of recent high-field muon spin rotation experiments and may b...

A Fuzzy Multi-Objective Class Based Storage Location Assignment

The required storage space and the material handing cost in a warehouse hinge on the storage implementation decision. Effects of storage area reduction on order picking and storage space cost are incorporated. Moreover, merchandises which are in the same shape and can be stored beside each other easily or goods that don't cause any danger like causing a fire if be in touch with each other, ...