Roosevelt University

About: Roosevelt University is a education organization based out in Chicago, Illinois, United States. It is known for research contribution in the topics: Electron paramagnetic resonance & Population. The organization has 751 authors who have published 1482 publications receiving 44299 citations.

Building Learning Communities to Increase Faculty and Preservice Teacher Use of Technology

Abstract: Effective learning communities connect members so that they can share knowledge and experience. This article examines the process and out-comes of building learning communities to increase faculty and preservice teacher use of technology through PT3 funding at three institutions: National-Louis University the University of Houston, and the University of Vermont. Strategies implemented as well as achievements and challenges for each project are outlined. Recommendations include reinforcing common goals and mutual benefits, connecting distant community members through online communication, dynamic configurations for networking, and incentives for faculty participation. Successful learning communities require nurturing to reduce isolation through improved communication and active participation.

Attenuation of Hemodynamic Response to Laryngoscopy and Endotracheal Intubation with Pre Induction IV Fentanyl Versus Combination of IV Fentanyl and Sub Lingual Nitroglycerin Spray.

Abstract: Introduction: Endotracheal intubation is one of the most invasive stimuli in anesthesia and it’s often accompanied by a hemodynamic pressor response. Th e purpose of this study was to investigate the effi cacy of a single pre-induction 2 μg/kg bolus injection of fentanyl followed by two puff s of nitroglycerin sub lingual spray (400 μg /spray) with a thiopentone/suxamethonium sequence in the attenuation of the hemodynamic response to endotracheal intubation in normotensive patients. Material and methods: Th e study consisted of 80 randomly selected ASA physical status I/II male/female adults who were aged between 18 through 60 years and scheduled for elective surgery. Group I received a single 2 μg/kg IV bolus of fentanyl diluted to 5 ml with normal saline 5 min prior to laryngoscopy followed by two puff s of nitroglycerin sub lingual spray (400 μg/spray) 2 minutes prior to intubation (n=40). Group II received a single 2 μg/kg IV bolus of fentanyl diluted to 5 ml with normal saline 5 min prior to laryngoscopy (n=40). Heart rate, systolic blood pressure, diastolic blood pressure, mean arterial pressure and rate pressure product were compared to basal values at pre-induction, induction, intubation and post-intubation as well as at time increments of 1, 3, 5, 7 and 10 min. Results: Fentanyl combined with nitroglycerin did not attenuate hemodynamic pressor responses more than fentanyl alone. Increases of HR (7.9%), DBP (4.0%), MAP (3.6%) and RPP (6.0%) along with attenuation of SBP (2.7%) were observed in the fentanyl-nitroglycerin group as compared to the equivalent control measured values. Conclusions: A single pre-induction bolus injection of fentanyl followed by two puff s of nitroglycerin sub lingual spray in a thiopentone/suxamethonium anesthetic sequence neither successfully attenuates nor successfully suppresses the hemodynamic pressor response more eff ectively than fentanyl alone in normotensive patients resulting from endotracheal intubation.

A Faster Clause-Shortening Algorithm for SAT with No Restriction on Clause Length

Abstract: We give a randomized algorithm for testing satisfiability of Boolean formulas in conjunctive normal form with no restriction on clause length. This algorithm uses the clause-shortening approach proposed by Schuler. The running time of the algorithm is O(2^(n(1−1/α))) where α = ln(m/n) + O(ln ln m) and n, m are respectively the number of variables and the number of clauses in the input formula. This bound is asymptotically better than the previously best known 2^(n(1−1/ log(2m))) bound for SAT.

Research on Unproctored Internet Testing

Abstract: BEN-ROY DORoosevelt UniversityThis article will focus on two areas ofresearch:measurementequivalenceofproc-tored and unproctored administration ofcognitive measures and the effect of cheat-ing through the use of item preknowledgeand two-step testing.Score Equivalence andMeasurement EquivalencePrior research on the score equivalence ofInternettestingacrossproctoredandunproc-toredsettingsgivesussomewhatinconsistentresults.Onegroupofresearchersfoundcom-parable results across proctored and unproc-toredconditions. Oswald, Carr, and Schmidt(2001) found no differences in internal struc-ture or mean test scores for cognitive ability,although they found differences for noncog-nitive measures. Other researchers foundhigher mean scores in unproctored than inproctored conditions (e.g., Beaty, Fallon,Shepherd, & Barrett, 2002; Do, Shepherd, &Drasgow, 2005).Yet, other researchers found that althoughthere was significant score difference, theproctored condition, not the unproctoredcondition, has better scores. For instance,Shepherd, Do, and Drasgow (2003) foundthat proctored participants scored higher onthe working with information scale thanunproctored participants, with a small effectsize. In another study using two-step testingwhere qualified unproctored participantswereinvitedtoparticipateinaproctoredcon-firmation test, Nye, Do, Drasgow, and Fine(2008) found that participants in the proc-tored condition scored higher than those inthe unproctored condition, with small tomoderate effect sizes.How do we reconcile the inconsistencyamong those three groups of results? Inunproctored Internet tests (UITs), althoughjob applicants may cheat with help froma smart friend or experienced worker toreceive higher test scores, they may also besubject to distractions in a nonstandardizedenvironment and thus obtain lower testscores. These factors could be the reasonweareseeinginconsistentresultsfromthosethree groups of studies.To ensure test results from UITare compa-rabletoproctoredcounterparts,itisimportantto look beyond score equivalence and focusonthepsychometricproperties ofthetestanditemsacrosstestadministrationmodes.Absentrandom assignment of people to conditions,observed mean score differences may reflectactual sample differences of the groups, asopposed to measurement nonequivalence orthe presence of some effect across groups. Inaddition, it is important to ensure that testingconditions exhibit no bias, such that a test oritem does not unfairly favor one group ofexamineesoveranother.Measurementequiv-alence is one way to address these issues.