583 research outputs found
A Comparison between Domestic and International Graduate Students on their Work Readiness at a Research University
One critical issue in educational programs involves the extent to which graduates are ready to begin employment at program completion. Additionally, most research universities make deliberate efforts to enroll students from other countries.
An important question regarding the effectiveness of the programs in these universities is whether the international students have comparable preparation and “Work-Readiness” as the domestic students.
This study revealed that on several of the measures associated with “Work-Readiness“ international students had lower levels of “Readiness” than domestic students. Also, other differences were found in the groups on issues such as internship experiences and involvement in scholarly activitie
Students’ Perceptions of Factors that Affect College Funding Decisions
This exploratory study examines the factors that college students perceive are important in helping them make good financial decisions about paying for a college education. The study categorizes and summarizes students\u27 self-reported responses to an openended survey question about recommendations for changes in financial aid counseling practices. The 335 student responses had a recurring theme of better information provided through individual counseling sessions
Improving Underrepresented Minority Student Persistence in STEM.
Members of the Joint Working Group on Improving Underrepresented Minorities (URMs) Persistence in Science, Technology, Engineering, and Mathematics (STEM)-convened by the National Institute of General Medical Sciences and the Howard Hughes Medical Institute-review current data and propose deliberation about why the academic "pathways" leak more for URM than white or Asian STEM students. They suggest expanding to include a stronger focus on the institutional barriers that need to be removed and the types of interventions that "lift" students' interests, commitment, and ability to persist in STEM fields. Using Kurt Lewin's planned approach to change, the committee describes five recommendations to increase URM persistence in STEM at the undergraduate level. These recommendations capitalize on known successes, recognize the need for accountability, and are framed to facilitate greater progress in the future. The impact of these recommendations rests upon enacting the first recommendation: to track successes and failures at the institutional level and collect data that help explain the existing trends
Radiation treatment for refractory endometriosis: a 38-year-old female presenting with vaginal bleeding
BACKGROUND: Endometriosis is typically managed with a medical or surgical approach, though some patients have medically refractory disease and are poor surgical candidates.
CASE PRESENTATION: A 39-year-old woman presented to our facility with uncontrolled bleeding and pain from an endometriotic mass at the vaginal cuff. She had a history of abdominal hysterectomy with bilateral salpingo-oophorectomy, now with medically refractive and inoperable disease due to prior history of vesicovaginal fistula. We prescribed 30 Gy in 10 fractions with 10 MV and 18 MV photons to the target. At follow-up our patient reported a complete resolution of bleeding and pelvic pain.
CONCLUSION: Radiation treatment can be an effective treatment for refractory endometriosis
Extracting structural features of rat sciatic nerve using polarization-sensitive spectral domain optical coherence tomography
We present spectral domain polarization-sensitive optical coherence tomography (SD PS-OCT) imaging of peripheral nerves. Structural and polarization-sensitive OCT imaging of uninjured rat sciatic nerves was evaluated both qualitatively and quantitatively. OCT and its functional extension, PS-OCT, were used to image sciatic nerve structure with clear delineation of the nerve boundaries to muscle and adipose tissues. A long-known optical effect, bands of Fontana, was also observed. Postprocessing analysis of these images provided significant quantitative information, such as epineurium thickness, estimates of extinction coefficient and birefringence of nerve and muscle tissue, frequency of bands of Fontana at different stretch levels of nerve, and change in average birefringence of nerve under stretched condition. We demonstrate that PS-OCT combined with regular-intensity OCT (compared with OCT alone) allows for a clearer determination of the inner and outer boundaries of the epineurium and distinction of nerve and muscle based on their birefringence pattern. PS-OCT measurements on normal nerves show that the technique is promising for studies on peripheral nerve injury. © 2012 Society of Photo-Optical Instrumentation Engineers (SPIE)
Gleam: the GLAST Large Area Telescope Simulation Framework
This paper presents the simulation of the GLAST high energy gamma-ray
telescope. The simulation package, written in C++, is based on the Geant4
toolkit, and it is integrated into a general framework used to process events.
A detailed simulation of the electronic signals inside Silicon detectors has
been provided and it is used for the particle tracking, which is handled by a
dedicated software. A unique repository for the geometrical description of the
detector has been realized using the XML language and a C++ library to access
this information has been designed and implemented.Comment: 10 pages, Late
Liquid-Crystal-Based Controllable Attenuators Operating in the 1-4 Terahertz Band
Liquid-crystal devices (LCDs) offer a potential route toward adaptive optical
components for use in the < 2 THz band of the electromagnetic spectrum. We
demonstrate LCDs using a commercially available material (E7), with unbiased
birefringence values of 0.14-0.18 in the 0.3-4 THz band. We exploit the linear
dichroism of the material to modulate the emission from a 3.4-THz quantum
cascade laser by up to 40%, dependent upon both the liquid-crystal layer
thickness and the bias voltage applied.Comment: 10 pages, 6 figure
Outplayed: Regaining Strategic Initiative in the Gray Zone, A Report Sponsored by the Army Capabilities Integration Center in Coordination with Joint Staff J-39/Strategic Multi-Layer Assessment Branch
U.S. competitors pursuing meaningful revision or rejection of the current U.S.-led status quo are employing a host of hybrid methods to advance and secure interests contrary to those of the United States. These challengers employ unique combinations of influence, intimidation, coercion, and aggression to incrementally crowd out effective resistance, establish local or regional advantage, and manipulate risk perceptions in their favor. So far, the United States has not come up with a coherent countervailing approach. It is in this “gray zone”—the awkward and uncomfortable space between traditional conceptions of war and peace—where the United States and its defense enterprise face systemic challenges to U.S. position and authority. Gray zone competition and conflict present fundamental challenges to U.S. and partner security and, consequently, should be important pacers for U.S. defense strategy.https://press.armywarcollege.edu/monographs/1924/thumbnail.jp
Fermi Large Area Telescope Constraints on the Gamma-ray Opacity of the Universe
The Extragalactic Background Light (EBL) includes photons with wavelengths
from ultraviolet to infrared, which are effective at attenuating gamma rays
with energy above ~10 GeV during propagation from sources at cosmological
distances. This results in a redshift- and energy-dependent attenuation of the
gamma-ray flux of extragalactic sources such as blazars and Gamma-Ray Bursts
(GRBs). The Large Area Telescope onboard Fermi detects a sample of gamma-ray
blazars with redshift up to z~3, and GRBs with redshift up to z~4.3. Using
photons above 10 GeV collected by Fermi over more than one year of observations
for these sources, we investigate the effect of gamma-ray flux attenuation by
the EBL. We place upper limits on the gamma-ray opacity of the Universe at
various energies and redshifts, and compare this with predictions from
well-known EBL models. We find that an EBL intensity in the optical-ultraviolet
wavelengths as great as predicted by the "baseline" model of Stecker et al.
(2006) can be ruled out with high confidence.Comment: 42 pages, 12 figures, accepted version (24 Aug.2010) for publication
in ApJ; Contact authors: A. Bouvier, A. Chen, S. Raino, S. Razzaque, A.
Reimer, L.C. Reye
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