Ursinus College is a private, independent, coeducational, liberal arts college located in Collegeville, Pennsylvania.Founded in 1869, Ursinus sits on a 170-acre wooded campus approximately 30 miles from Center City Philadelphia. Ursinus is one of the eleven Centennial Conference schools, a Phi Beta Kappa college, and is a member of the Thomas J. Watson Fellowship list, Project Pericles, Project DEEP, the Bonner Leader Program, and the Annapolis Group. The college is also home to the Philip and Muriel Berman Museum of Art, regarded as one of the nation's finest small-college art museums. Wikipedia.
Ferrari L.A.,Ursinus College
Journal of the Optical Society of America A: Optics and Image Science, and Vision | Year: 2011
A scale transformation that converts an ellipse into a circle has been suggested in the literature as a method for eliminating the need to evaluate the conventional Mathieu function solution for scattering by an elliptic cylinder. This suggestion is tested by examining the wave equation in the scaled coordinate system and by evaluating the scattering from a thin ellipse for conditions where it is expected that an approximate solution can be obtained using the scalar theory single-slit approximation. It is found that, for a plane electromagnetic wave normally incident on a thin perfectly conducting ellipse, the position of the first minimum in the diffraction pattern, relative to the central axis, differs by approximately a factor of 7 between the single-slit and the scaled theory approach to the problem. The examination of the scaled wave equation and the scattering calculation suggests that, because the scale transformation generates an anisotropic medium, the use of a uniform medium solution in the scaled coordinate system is not appropriate. © 2011 Optical Society of America. Source
Stevenson J.L.,Ursinus College |
Gernsbacher M.A.,University of Wisconsin - Madison
PLoS ONE | Year: 2013
Autistic individuals typically excel on spatial tests that measure abstract reasoning, such as the Block Design subtest on intelligence test batteries and the Raven's Progressive Matrices nonverbal test of intelligence. Such well-replicated findings suggest that abstract spatial processing is a relative and perhaps absolute strength of autistic individuals. However, previous studies have not systematically varied reasoning level - concrete vs. abstract - and test domain - spatial vs. numerical vs. verbal, which the current study did. Autistic participants (N = 72) and non-autistic participants (N = 72) completed a battery of 12 tests that varied by reasoning level (concrete vs. abstract) and domain (spatial vs. numerical vs. verbal). Autistic participants outperformed non-autistic participants on abstract spatial tests. Non-autistic participants did not outperform autistic participants on any of the three domains (spatial, numerical, and verbal) or at either of the two reasoning levels (concrete and abstract), suggesting similarity in abilities between autistic and non-autistic individuals, with abstract spatial reasoning as an autistic strength. © 2013 Stevenson, Gernsbacher. Source
Ajaib M.A.,Ursinus College |
Gogoladze I.,University of Delaware |
Shafi Q.,University of Delaware
Physical Review D - Particles, Fields, Gravitation and Cosmology | Year: 2015
We study a grand unified theories inspired supersymmetric model with nonuniversal gaugino masses that can explain the observed muon g-2 anomaly while simultaneously accommodating an enhancement or suppression in the h→γγ decay channel. In order to accommodate these observations and mh 125 to 126 GeV, the model requires a spectrum consisting of relatively light sleptons whereas the colored sparticles are heavy. The predicted stau mass range corresponding to Rγγ≥1.1 is 100GeV 200GeV. The constraint on the slepton masses, particularly on the smuons, arising from considerations of muon g-2 is somewhat milder. The slepton masses in this case are predicted to lie in the few hundred GeV range. The colored sparticles turn out to be considerably heavier with mg 4.5TeV and mt 3.5TeV, which makes it challenging for these to be observed at the 14 TeV LHC. © 2015 American Physical Society. Source
Feairheller D.L.,Ursinus College
Blood Pressure Monitoring | Year: 2015
Background Hypertension, cardiovascular disease, and obesity are global health problems and are a large concern for firefighters. The leading cause of death among firefighters is cardiac-related; hence, it is important to understand how firefighter personal protective equipment (PPE) affects cardiovascular responses to different activities. Volunteer firefighters represent 70% of all firefighters and are an understudied population. To the best of our knowledge, this is the first study to report blood pressure (BP) responses in volunteer firefighters. Methods and results Thirty-six male, nonsmoking volunteer firefighters (27.8 ±9.7 years) underwent two maximal treadmill tests within 2 weeks, one in regular gym clothes and one in PPE. We found that while wearing PPE, which weighs 54.2± 3.5 lbs, BP responses are exaggerated during work and in recovery. Systolic BP and heart rate were significantly (P<0.05) higher at each submaximal stage and during active recovery of the PPE test compared with the regular clothing test (15-23 mmHg and 20-34 bpm higher, respectively). Test time and VO2 max were lower in the PPE test (P<0.05). Conclusion BP responses are exaggerated while wearing full fire protective gear and remain elevated during recovery. Awareness of how firefighting activities affect BP is important; so future studies should examine how the BP increase relates to resting BP levels, to PPE weight, and to the thermal effects of the PPE. © 2015 Wolters Kluwer Health, Inc. Source
Agency: NSF | Branch: Standard Grant | Program: | Phase: S-STEM:SCHLR SCI TECH ENG&MATH | Award Amount: 32.47K | Year: 2015
Recognizing the national need for significant improvement in undergraduate STEM education, collaborators from six institutions (Rochester Institute of Technology, St. Marys University, Oral Roberts University, Hope College, Ursinus College, and California Polytechnic University) will explore a new approach to introduce students to authentic research in biochemistry laboratory courses. The project will test the hypotheses that engaging in authentic research will improve students abilities to master key aspects of experimentation (experimental design, data processing and interpretation, and communication of research outcomes) and visualization (use of representations to communicate various aspects of the research process). The project is likely to be transferrable to other institutions, and is an example of a cost-effective way to introduce course-based research into the undergraduate curriculum.
Biochemistry laboratory courses will be redesigned to include modules in which students will integrate computational and wet lab techniques as they characterize proteins whose three dimensional structures are known but to which functions have not been previously ascribed. Because the project is focused on discovery, it is reasonable to expect that some of the students will produce novel results that will contribute to the field of biochemistry. Formative and summative evaluation will address assessment of student learning gains in terms of improved conceptual understanding and visualization of experiments using a validated instrument composed of open-ended and closed-ended questions. Faculty members and teaching assistants will be surveyed and interviewed about their satisfaction with the project, its usability, and the extent to which they see the project as part of their own and their students development. The project team will create and disseminate modules (promol.org) that form the core of a new curriculum for undergraduate biochemistry laboratory courses. The results of the work will be presented at professional meetings, such as the American Society of Biochemistry and Molecular Biology, and submitted to scholarly journals.