SDSS Galaxy Survey

The UPenn Fit Catalog provides 2-d galaxy profile fits in several visible bands using SDSS data.  Additional data collected from other sources is provided to facilitate analysis. The catalog is constructed and maintained by Professor Mariangela Bernardi and her group.

 

Nanotech Gene Sequencing

Prof. Marija Drndic is researching a technique to sequence genes by reading DNA bases as they translocate through a silicon nitride nanopore.  As strands of DNA in a salt solution are driven through the pore by an applied electric field, the electric current passing through changes with the size of the base.  This method could be essential for swift sequencing of genes and personalized medicine.

Cargo vesicles traveling along microtubles

Cargo vesicles (stained with green fluorescent dye) travelling along microtubules (stained red) in a living cell as studied in Professor Phil Nelson's group.

 

Science Verification Images from DES

High resolution color image of area SPT-CL J2332-5358 from the Dark Energy Survey Science Verification stage of testing of the telescope and DECam.

Jammed States of Matter

Almost any system composed of discrete pieces large enough that thermal fluctuations can be ignored can have a jamming transition: a point at which fluid flow is impeded by a change of state into a stable amorphous solid.  The behavior is general enough to explain a pile of sand, a jar of candies, or cars in a traffic jam.  Professor Andrea Liu was involved in recent theoretical breakthroughs in the study of this phenomenon.

 

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