Simulations of grafted polymers in a good solvent

We present improved simulations of three-dimensional self avoiding walks with one end attached to an impenetrable surface on the simple cubic lattice. This surface can either be a-thermal, having thus only an entropic effect, or attractive. In the latter case we concentrate on the adsorption transition, We find clear evidence for the cross-over exponent to be smaller than 1/2, in contrast to all previous simulations but in agreement with a re-summed field theoretic $\epsilon$-expansion. Since we use the pruned-enriched Rosenbluth method (PERM) which allows very precise estimates of the partition sum itself, we also obtain improved estimates for all entropic critical exponents.Comment: 5 pages with 9 figures included; minor change

The Ursinus Weekly, February 18, 1952

1952 Selective Service test set for April • Violinist, pianist schedule program Thursday night • Tryouts held for Meistersingers; Cast is chosen • Egyptian to speak here Wednesday • Communist youth festival described by U.S. delegate • Elections Wednesday as four vie for May Queen • Anne Hughes tells of her college life • Spring play selected by Curtain Club • Drs. Garrett, Miller to address first professors\u27 panel • Mr. Dolman to read Twain at English lit meeting • Sophomores plan eventful weekend for March 7-8 • Summer term students asked to select courses • Tea planned • Editorials: Where there\u27s life; W. Europe forms new army • Whistler Donahue tells of day\u27s activities in Morocco • Operation Lorelei gets underway February 29 • Washington bust given to college by Mr. Lachman • Library is not only for bookworms • Ursinus girls basketball squad overpowers Albright team, 51-23 • Spencer scores 22 as Belles triumph • Off-campus teams lead League II • University of Delaware registers an 81-55 league win over Bears • Girls win in opening meet • Frosh outstanding in winter sports • Grizzlies weak in offense as Dragons win, 82-56 • Grapplers beaten by Delaware team • New accessions to Library include many best-sellers • Teaching is profession, FTA speaker asserts • English Club reads Hamlet • Chess team loses • Couples enjoy Western dance • Chemist addresses Beardwood Society • IRC discusses conferences • MSGA discusses Student Union, parking rules • Students attend NATO conference • WAA card party benefits fundhttps://digitalcommons.ursinus.edu/weekly/1534/thumbnail.jp

Reported prevalence of health conditions that affect drivers

Drivers' health and fitness are essential factors in order to predict performance outcomes and to promote road safety. It is a demonstrated fact that drivers with (physical and mental) health impairments or illnesses have more probabilities of being involved in traffic crashes and suffering (or causing) several injuries. The general objective of this study was to examine the prevalence of adverse health conditions that may affect Spanish drivers and its perceived impact on driving fitness. It was used a sample of 1200 Spanish drivers (666 men and 534 women). The only selection criteria were to be in possession of any type of driving license for vehicles other than motorcycles and to drive frequently. As a first result, 42% of the participants considered that sometimes they were not in good health conditions to drive and 1.8% considered it frequently. Furthermore, fatigue, alcohol, negative emotions, drowsiness, headaches, respiratory disease, and fever the most prevalent health conditions impairing driver's fitness. Statistical analysis revealed gender differences in reported health and fitness between male and female drivers. The main cause reported to avoid driving task was to suffer illnesses related to physical health (77.6% of drivers). Based on this study, it can be stated that the Administration should work together with the primary health care system in order to improve drivers' awareness on the risk of driving while suffering symptoms of any common physical or mental illness