Helical structures from an isotropic homopolymer model

We present Monte Carlo simulation results for square-well homopolymers at a series of bond lengths. Although the model contains only isotropic pairwise interactions, under appropriate conditions this system shows spontaneous chiral symmetry breaking, where the chain exists in either a left- or a right-handed helical structure. We investigate how this behavior depends upon the ratio between bond length and monomer radius.Comment: 10 pages, 3 figures, accepted for publication by Physical Review Letter

The Lennard-Jones-Devonshire cell model revisited

We reanalyse the cell theory of Lennard-Jones and Devonshire and find that in addition to the critical point originally reported for the 12-6 potential (and widely quoted in standard textbooks), the model exhibits a further critical point. We show that the latter is actually a more appropriate candidate for liquid-gas criticality than the original critical point.Comment: 5 pages, 3 figures, submitted to Mol. Phy

Correspondence

Exchange between Tinsley E. Yarbrough and James Magee regarding Magee's review of Yarbrough's Mr. Justice Black and His Critics from Constitutional Commentary 7.1

Structure and Aggregation of a Helix-Forming Polymer

We have studied the competition between helix formation and aggregation for a simple polymer model. We present simulation results for a system of two such polymers, examining the potential of mean force, the balance between inter and intramolecular interactions, and the promotion or disruption of secondary structure brought on by the proximity of the two molecules. In particular, we demonstrate that proximity between two such molecules can stabilize secondary structure. However, for this model, observed secondary structure is not stable enough to prevent collapse of the system into an unstructured globule.Comment: Accepted to the Journal of Chemical Physic

Failure of interpolation in the intuitionistic logic of constant domains

This paper shows that the interpolation theorem fails in the intuitionistic logic of constant domains. This result refutes two previously published claims that the interpolation property holds.Comment: 13 pages, 0 figures. Overlaps with arXiv 1202.1195 removed, the text thouroughly reworked in terms of notation and style, historical notes as well as some other minor details adde

Physiological Basis of the Radioisotope Renogram

A model elucidating the relationships between blood radioactivity, the renogram curve, and urine radioactivity, as a function of time, is derived. Estimation procedures have been devised which use the data from three curves at once to estimate parameters common to the three curves, and which also estimate parameters unique to the individual curves. A program has been written for the RPC 4000 computer to perform the estimation. It was found that some model in which six different exponential parameters could be justified instead of the two proposed by the model could provide a significantly better fit of the data (P \u3c .001), but that the fit under the hypothesis was still quite good

Immune response to rabies vaccination in pediatric transplant patients

Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/75049/1/j.1399-3046.2008.00936.x.pd

Loss of Pediatric Kidney Grafts During the “High–Risk Age Window”: Insights From Pediatric Liver and Simultaneous Liver–Kidney Recipients

Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/110551/1/ajt12985.pd

The Ursinus Weekly, October 3, 1974

Statistics prove rumor unfounded • WRUC FM hits the air • New chaplain brings new ideas to U.C. • Musical forum presented by Mme. Agi Jambor • Dr. Williamson authors new study of Corinthians • Editorial • Pages from Ursinus past • Alumni corner: Assurance to insurance • Summer in the city • Letter from London • S.F.A.R.C. and you • Assistant Deans of Men and Women appointed • Festival help needed • Slow boat to China • Harriers sweep Drew and Eastern • The Spirit of the 76ers • Women\u27s hockey season opens • Why Bears?https://digitalcommons.ursinus.edu/weekly/1020/thumbnail.jp