Rowan University

    The suburban middle class at risk: a profile of students who are referred to the office

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    The focus of this study was to identify the at risk students at a suburban high school based on the frequency of referrals to the office, and to determine why these students continue to misbehave. A list of students called down to the office was provided daily. Using the Call Down List, names of students who were referred to the office most frequently were compiled. A random sample of 23 students frequently on the list was used to develop a profile of the nature of the misbehavior, and the administrative action taken; patterns of attendance, lateness, and academic standing were also reviewed. Interviews were conducted with a teacher, two students from the sample, and a counselor. Major findings indicated that students repeat misbehaviors, miss instruction frequently, are not likely to be involved in school activities, and are academically in the lower track. Not only can these students least afford to miss instructional time to go to the office, but the measures taken do not prevent further cutting. Students that dropped out, or committed more serious infractions such as student on student violence, were on the Call Down List frequently. More focused early intervention and parental involvement were recommended

    An enhanced predictive hierarchical power management framework for islanded microgrids

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    This paper proposes an enhanced three-layer predictive hierarchical power management framework for secure and economic operation of islanded microgrids. The tertiary control, guaranteeing the microgrid economic operation, is built upon the semi-definite programming-based AC optimal power flow model, which periodically sends power references to secondary control. To mitigate uncertainties arising from renewable generations and loads, a centralized linear model predictive control (MPC) controller is proposed and implemented for secondary control. The MPC controller can effectively regulate the microgrid system frequency by closely tracking reference signals from the tertiary controller with low computational complexity. Droop-based primary controllers are implemented to coordinate with the secondary MPC controller to balance the system in real time. Both synchronous generators (SGs) and solar photovoltaics (PVs) are simulated in the microgrid power management framework. A unified linear input-state estimator (ULISE) is proposed for SG state variable estimation and control anomaly detection due to compromised cyber-physical system components, etc. Simulation results demonstrated that SG states can be accurately estimated, while inconsistency in control signals can be effectively detected for an enhanced MPC. Furthermore, comparing with conventional proportional-integral (PI) control, the proposed hierarchical power management scheme exhibits superior frequency regulation capability whilst maintaining lower system operating costs

    Assessment variability among states in determining Part C eligibility criteria

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    Early intervention (EI), known as Part C, is an integral component of providing young children with individualized attention that enriches their development. The EI services are provided to children zero to two years old that are deemed eligible by specific diagnosis, clinical opinion, or based on assessment scores. States have flexibility on which assessments should be used and the qualifications of the examiner. The variations among states and districts can have implications on who is eligible to receive services throughout the country. The purpose of this study is to investigate the assessments and examiner\u27s qualification in each state. The ongoing data that will be collected will be interpreted to answer the following questions: Does the type of assessment used to determine children\u27s eligibility for EI services in each state correlate to the projected number of referred children? Does the difference in the examiner\u27s qualifications have an impact on the number of children in EI? The data suggests that there needs to be further examination to answer these questions. The states\u27 ambiguity of assessments and evaluator qualifications raises concerns on the reliability and validity on the evaluation process

    Teaching research skills with electronic reference tools: a study of curriculum development and articulation

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    Elementary teachers and elementary school library media specialists are expected to prepare students to be able to complete independent research using a variety of print and electronic reference tools. The purpose of this study was to examine what programs are available in elementary schools that prepare students to do independent research. The subjects were library media specialists who taught grades three, four, five, and six in schools in New Jersey. The schools were part of the FG group of the New Jersey District Factor Grouping System. Using a self-administered questionnaire the subjects described the essentials of their library programs, responded to questions about curriculum articulation and integration, and expressed opinions concerning faculty involvement and student preparedness. Librarians listed a variety of print and electronic reference tools they used for instruction, reporting electronic reference tools were taught more to fifth and sixth grade. Most librarians were only involved in supporting subject content units, though many agree they should be involved in planning cross-curricular units. Many librarians agreed their students were prepared to do research at the next grade level. A list of activities librarians believed were successful was also compiled

    Automated segmentation of radiodense tissue in digitized mammograms using a constrained Neyman-Pearson classifier

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    Breast cancer is the second leading cause of cancer related mortality among American women. Mammography screening has emerged as a reliable non-invasive technique for early detection of breast cancer. The radiographic appearance of the female breast consists of radiolucent (dark) regions and radiodense (light) regions due to connective and epithelial tissue. It has been established that the percentage of radiodense tissue in a patient\u27s breast can be used as a marker for predicting breast cancer risk. This thesis presents the design, development and validation of a novel automated algorithm for estimating the percentage of radiodense tissue in a digitized mammogram. The technique involves determining a dynamic threshold for segmenting radiodense indications in mammograms. Both the mammographic image and the threshold are modeled as Gaussian random variables and a constrained Neyman-Pearson criteria has been developed for segmenting radiodense tissue. Promising results have been obtained using the proposed technique. Mammograms have been obtained from an existing cohort of women enrolled in the Family Risk Analysis Program at Fox Chase Cancer Center (FCCC). The proposed technique has been validated using a set of ten images with percentages of radiodense tissue, estimated by a trained radiologist using previously established methods. This work is intended to support a concurrent study at the FCCC exploring the association between dietary patterns and breast cancer risk

    Development of an integrated network visualization and graph analysis tool for biological networks

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    There has been steady increase in the amount of molecular data generated by experiments and computational methods performed on biological networks. There is a growing need to obtain an insight into the organization and structure of the massive and complex biological networks formed by the interacting molecules. To that end, this work presents the development of an integrated network visualization and graph analysis plugin within the Cytoscape framework. The plugin is capable of computing and visualizing a comprehensive set of dyad, node, and graph level statistics. The evaluation of the plugin on a range of biological networks and its memory performance is conducted. The plugin, proven to be scalable, is an interactive and highly customizable application that expects no prior knowledge in graph theory from the user

    Development of Innovative, Adaptable Video Learning Modules for the Civil Engineering Classroom

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    As engineering and technology continue to evolve, so should the use of such innovations in engineering pedagogy. Standard course learning modules have not often utilized technology to assist in learning of engineering principles and concepts; that is, until the COVID-19 pandemic required teachers and students to use technology more frequently in a virtual teaching/learning environment. Therefore, it is even more critical now that engineering pedagogy be adapted to incorporate technology in the classroom to enhance student learning of complex engineering concepts. In this study, a team of Civil Engineering professors has set out to incorporate technology into their classrooms to help students gain a stronger understanding of the fundamental building blocks of Civil Engineering. A series of comprehensive educational video and simulation-based learning modules were created for the Civil Engineering subdisciplines of environmental, geotechnical, transportation, and structural engineering. The development and implementation of such technology-based learning modules offer new opportunities to teach students the complex concepts of Civil Engineering through visual means. The efficacy of the learning modules were evaluated through student assessment surveys for: (1) the appropriateness of the module in aiding the introduction of course content, (2) the effectiveness of the module in enhancing student understanding of course content, and (3) the overall perception of students of the module. Implementation of the modules into the classroom has shown that students responded positively to the modules, referencing the modules as both engaging and comprehensive in aiding their understanding of course content

    Improving math fact acquisition of students with learning disabilities using the Touch Math method

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    This study examined the effects of Touch Math compared with a number grid for computation. The study also considered the effects of these interventions on the self-efficacy of students with learning disabilities towards mathematics. Computation probes and math self-efficacy surveys were administered to the students prior to, and at the end of the intervention sessions. A quasi experimental alternating treatment design was utilized for interventions which lasted for ten days each. Probe and intervention practice sessions presented addition first then subtraction on separate worksheets. Seven elementary students with learning disabilities receiving specialized instruction through a pull-out program participated. Significant difference was calculated using a t statistic and critical value for interventions and initial to final probe percentages. No significant difference was found in the accuracy of basic fact computations when the two interventions were compared. Results from initial to final probes indicated overall improvement in accuracy. For two students a significant improvement was found when comparing initial to final probe results. Neither intervention was seen as the key to the improvement. Survey results indicated a minimal relationship between perceived effectiveness, effort, and improved accuracy

    High school media center web sites: essential elements

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    The purpose of this research investigation was to determine what was considered essential for a high school media center\u27s Web page. A content analysis research method using high school media center Web pages was performed to verify contents and functionality, as well as similarities and differentiations. The results of this study indicated that some elements were considered essential for high school media center Web pages, such as online magazines and/or encyclopedias, databases, and information and/or resources on bibliographies and citations. The research also provided elements considered tentative in regards to level of essentialism for these Web pages, such as links to resources for teachers/staff, library mission/goals, and information about current school projects. Finally, the results of the study provided insight into elements not considered essential for high school media center Web pages, including parent resources, available equipment, and staff biography information
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