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Washington, DC, United States

Strayer University is a United States-based private, for-profit higher education institution. The university enrolls about 40,000 students through its online learning programs, and at 80 campuses located in 24 U.S. states. The university specializes in degree programs for working adults and offers undergraduate and graduate degrees in subjects such as accounting, business administration, criminal justice, education, health services administration, information technology and public administration. It was founded in 1892 as Strayer's Business College and later became Strayer College, before being granted university status in 1998. Strayer University is accredited by the Middle States Commission on Higher Education. Wikipedia.

Bergeron P.,University of Montreal | Wesemael F.,University of Montreal | Dufour P.,University of Montreal | Beauchamp A.,University of Montreal | And 9 more authors.
Astrophysical Journal | Year: 2011

We present a detailed analysis of 108 helium-line (DB) white dwarfs based on model atmosphere fits to high signal-to-noise optical spectroscopy. We derive a mean mass of 0.67 M· for our sample, with a dispersion of only 0.09 M·. White dwarfs also showing hydrogen lines, the DBA stars, comprise 44% of our sample, and their mass distribution appears similar to that of DB stars. As in our previous investigation, we find no evidence for the existence of low-mass (M < 0.5 M·) DB white dwarfs. We derive a luminosity function based on a subset of DB white dwarfs identified in the Palomar-Green Survey. We show that 20% of all white dwarfs in the temperature range of interest are DB stars, although the fraction drops to half this value above T eff 20,000K. We also show that the persistence of DB stars with no hydrogen features at low temperatures is difficult to reconcile with a scenario involving accretion from the interstellar medium, often invoked to account for the observed hydrogen abundances in DBA stars. We present evidence for the existence of two different evolutionary channels that produce DB white dwarfs: the standard model where DA stars are transformed into DB stars through the convective dilution of a thin hydrogen layer and a second channel where DB stars retain a helium atmosphere throughout their evolution. We finally demonstrate that the instability strip of pulsating V777 Her white dwarfs contains no non-variables, if the hydrogen content of these stars is properly accounted for. © 2011. The American Astronomical Society. All rights reserved.. Source

Wertgeim I.I.,Russian Academy of Sciences | Kumachkov M.A.,Perm Engine Company | Mikishev A.B.,Sam Houston State University | Mikishev A.B.,Strayer University
European Physical Journal: Special Topics | Year: 2013

The results of the numerical simulation of weakly-supercritical thermocapillary convection in a thin liquid layer with a free deformable upper boundary and an inhomogeneous nonstationary heat source (a pulsating thermal spot, localized in space and periodically modulated in time) are presented. © 2013 EDP Sciences and Springer. Source

Shiau W.-L.,Ming Chuan University | Luo M.M.,Strayer University
Computers in Human Behavior | Year: 2012

This study investigates factors that affect consumer continuous use intention toward online group buying and the degree that reciprocity and reputation of social exchange, trust, and vendor creativity affect consumer satisfaction and intention toward online purchasing. Data from 215 valid samples was obtained using an online survey. The research model is assessed using partial least squares (PLS) analysis. The results show that the intention to engage in online group buying is predicted collectively by consumer satisfaction, trust, and seller creativity. Consumer satisfaction with online group buying is predicted primarily by trust, followed by consumer reciprocity. The proposed research model explains 67.7% of variance for satisfaction and 39.7% of variance for intention to engage in online group buying. The results suggest that reciprocity, trust, satisfaction, and seller creativity provide considerable explanatory power for intention to engage in online group buying behavior. © 2012 Elsevier Ltd. All rights reserved. Source

Shiau W.-L.,Ming Chuan University | Luo M.M.,Strayer University
Behaviour and Information Technology | Year: 2013

The purpose of this study is to understand factors that affect continuance intention of a popular hedonic information system, blogs. The expectation-confirmation theory (ECT) is adapted with perceived enjoyment, habit and user involvement. Data was collected via an online survey. A total of 430 valid responses were collected. The research model was assessed by structural equation modelling (SEM). The results show that continuance intention of blog use was predicted collectively by user involvement, satisfaction and perceived enjoyment. Habit, however, exhibited no strong relationship with satisfaction and use intention. Users' satisfaction with blog use was predicted primarily by perceived enjoyment, followed by users' confirmation of expectation and user involvement. Perceived enjoyment was predicted by users' involvement and users' confirmation of expectation. Blogging time significantly moderates the effect of habit on perceived enjoyment, but not on satisfaction and continuance intention. The integrated model explains 65% of the satisfaction and 57% of continuance intention. The results suggest that integrating perceived enjoyment and user involvement into the ECT provides better insights into continuous use in the blog context. © 2013 Copyright Taylor and Francis Group, LLC. Source

Palaniswamy U.R.,Strayer University | Palaniswamy U.R.,World Vegetable Center | Uddin N.,Bangladesh Agricultural Research Institute | Islam F.,Bangladesh Agricultural Research Institute
Acta Horticulturae | Year: 2016

This study was carried out to evaluate a composting program by the Bangladesh Agricultural Research Institute (BARI) piloted to: (1) manage household kitchen waste generated by the BARI residential community on campus and (2) train small farmers and women groups in using kitchen waste for composting/vermicomposting and vermiculture as means of income generation. A major problem in BARI residential community's kitchen waste collection was at-source separation for which regular campus environmental educational campaigns focusing on this issue was suggested as a solution. Practical problems experienced by the small farmers and women groups were related to lifting and handling of the heavy compost preparation containers used and the selection of bedding materials. A completely randomized experiment was conducted using three container materials (plastic, wood and earthenware) and three types of bedding materials (rice straw, shredded paper, and coconut fibre) to identify the best container/bedding material combination that produced the best compost yield. Results of the study showed that the use of plastic containers with rice straw as the bedding material produced the best yield in compost production. The yield from earthen containers with rice straw bedding was comparable to the plastic containers with rice straw bedding and may offer a better quality compost in terms of nutrient salt concentrations as measured by its lower Electrical Conductivity (EC). However, the earthenware may pose a practical problem of breakage while handing. The plastic containers weighed the least and offered a solution to the problem of damage while handling. Source

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