566 research outputs found
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Integrating Backward Design Principles for Course Curriculum Planning
The purpose of this project is to enhance curriculum planning by integrating backward design principles for a graduate course, ESPE 6662: Methods for Students with Moderate/Severe Disabilities. Backward design, a curriculum planning approach introduced by Grant Wiggins and Jay McTighe (1998), challenges college professors to begin their planning process by developing goals and outcomes for student learning. Backward design encourages instructors to establish the curriculum outcomes and goals before reviewing instructional materials. Therefore, backward design is an effective way of providing guidance for designing courses. Once the learning outcomes have been identified, the instructor is to develop assessments and instructional activities around the learning outcomes. The backward design approach helps college instructors to establish priorities for learning and avoid using the textbook as the curriculum instead of a resource.
The backward design includes three principles: identifying the desired outcomes, determining acceptable evidence of learning, and developing the learning plan. Identify Desired Learning Outcomes: The instructor is to reflect on Commission on Teacher Credentialing Standards and curriculum map to identify the key concepts and goals that students should know and be able to perform at the completion of a course. It is also important to identify the skills, knowledge, and dispositions that students are expected to acquire for a course. Identify Acceptable Evidence: The instructor is to consider what will be acceptable evidence that students have met the goals and objectives. The instructor is to determine what types of assessments will measure when and whether students can perform the desired goals and outcomes. Plan Learning Experiences and Instruction: The instructor is to develop activities, exercises, assignments, and instructions around the desired learning outcomes and goals.
The outcome of this project is a course syllabus of ESPE 6662: Methods for Students with Moderate/Severe Disabilities
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Navigating Home Language Practice for Children With Disabilities: Insights From Korean-American Mothers\u27 Online Communications
This study explores the home language practice (HLP) of Korean-American mothers with children who have developmental disabilities, including autism spectrum disorder. Data was collected from an online forum where these mothers discussed their experiences and decision-making processes following their child\u27s diagnosis. Thematic analysis was conducted on the collected data to identify and develop themes related to their experiences. The study\u27s framework is based on family-centered practices, emphasizing the importance of equal partnerships, cultural responsiveness, and information sharing between families and early intervention and early childhood special education (EI/ECSE) professionals. Factors that influence HLP decisions include mothers\u27 perceptions of disabilities, professional advice, and children’s intervention progress. The study highlights the vital role of EI/ECSE professionals in sharing current research findings, their experiences with culturally and linguistically diverse (CLD) families, and the long-term outcomes of families that chose bilingual or single-language environments. By offering this information, professionals can assist parents in making informed decisions about their child\u27s HLP. Furthermore, the study emphasizes the value of online communities for CLD parents and the need for professionals to engage with these communities to provide accurate information on bilingualism for children with disabilities. Collaborating with ethnolinguistic communities and establishing parent support groups can create a nurturing environment for parents navigating EI/ECSE services for their children
Copper nanofiber-networked cobalt oxide composites for high performance Li-ion batteries
We prepared a composite electrode structure consisting of copper nanofiber-networked cobalt oxide (CuNFs@CoOx). The copper nanofibers (CuNFs) were fabricated on a substrate with formation of a network structure, which may have potential for improving electron percolation and retarding film deformation during the discharging/charging process over the electroactive cobalt oxide. Compared to bare CoOxthin-film (CoOxTF) electrodes, the CuNFs@CoOxelectrodes exhibited a significant enhancement of rate performance by at least six-fold at an input current density of 3C-rate. Such enhanced Li-ion storage performance may be associated with modified electrode structure at the nanoscale, improved charge transfer, and facile stress relaxation from the embedded CuNF network. Consequently, the CuNFs@CoOxcomposite structure demonstrated here can be used as a promising high-performance electrode for Li-ion batteries
Development of multistage 10-m shuttle run test for VO2max estimation in healthy adults
Background and objective: The disadvantage of the traditional 20-m
multistage shuttle run test (MST) is that it requires a long space for
measurements and does not include various age groups to develop the test.
Therefore, we developed a new MST to improve the spatial limitation by reducing
the measurement to a 10-m distance and to resolve the bias via uniform
distributions of gender and age.
Material and methods: Study subjects included 120 healthy adults (60
males and 60 females) aged 20 to 50 years. All subjects performed a graded
maximal exercise test (GXT) and a 10-m MST at five-day intervals. We developed a
regression model using 70% of the subject’s data and performed a
cross-validation test using 30% of the data.
Results: The male
regression model’s coefficient of determination (R2) was 58.8%, and the
standard error of estimation (SEE) was 4.17 mL/kg/min. The female
regression model’s R2 was 69.2%, and the SEE was 3.39 mL/kg/min.
The 10-m MST showed a high correlation with GXT on the VO2max (males: 0.816;
females: 0.821). In the cross-validation test for the developed regression
models, the male’s SEE was 4.38 mL/kg/min, and the female’s SEE
was 4.56 mL/kg/min.
Conclusion: Thus, the 10-m MST is an accurate and valid method for
estimating the VO2max. Therefore, the 10-m MST developed by us can be used
when the existing 20-m MST cannot be used due to spatial limitations and can be
applied to both men and women in their 20s and 50s
Prediction of males’ physical work capacity in various simulated altitudes using an incremental cycle ergometer exercise test at sea level
Standard approach to predict the decrease
in physical fitness that will occur following a transition to a higher altitude
is unavailable. Therefore, the study aimed to design simple mathematical models
to predict submaximal exercise performance in various altitude environments,
using a simple physical work capacity test conducted at sea level involving
>200 subjects. After splitting the subjects’ data in a ratio of 7:3, we used
70% of the data for regression model development and employed 30% for
cross-validation testing. All subjects performed submaximal exercise tests using
a cycle ergometer at artificial altitudes of 2000 m, 3000 m, 4000 m, 5000 m, and
at sea level. We applied simple regression analysis to create a predictive model
with the statistical significance set at the level of <5%. There were 233
subjects involved in this study. The coefficient of determination of our
regression model was 40–58%, and the standard error of estimation was
14.96–17.27 watts. The cross-validation of our regression model was 8–10%.
Among the regression models developed, the one applied to an artificial altitude
of 5000 m was 17%, and the regression model applied to an artificial altitude
below 4000 m had no issues in generalization since the cross-validation was less
than 10%. However, the regression model applied to an artificial altitude of
5000 m had a cross-validity of 17%; therefore, it should be used with caution
Performance-Based Evaluation of a Double-Deck Tunnel and Design Optimization
The double-deck tunnel is well known as smart infrastructure because multiple sections can be used for various purposes. Although the stability of a double-deck tunnel is mainly governed by the intermediate slab, the effect of various governing factors on tunnel structural stability has not been fully investigated. In this study, performance-based evaluation method for a double-deck tunnel is suggested as a three-dimensional matrix considering the life cycle of a double-deck tunnel. Moreover, a customized software for design and maintenance of a double-deck tunnel is developed. A structural analysis solver based on a beam–spring model for a double-deck tunnel was embedded in this code. The effects of connection type as well as depth of tunnel, ground stiffness and traffic load on structural behavior of tunnel were investigated. From the analysis, it was found that the connection type between segment lining and intermediate slab significantly affects the behavior of segment lining: simply connected condition causes lesser stress and moment than fully fixed condition. The deeper the tunnel depth, the greater the member force of segment lining. In addition, as both the tunnel depth and the ground stiffness increase, the influence of connection type on the structural stability of the double-deck tunnel becomes insignificant
Enhanced magnetic and thermoelectric properties in epitaxial polycrystalline SrRuO3 thin film
Transition metal oxide thin films show versatile electrical, magnetic, and
thermal properties which can be tailored by deliberately introducing
macroscopic grain boundaries via polycrystalline solids. In this study, we
focus on the modification of the magnetic and thermal transport properties by
fabricating single- and polycrystalline epitaxial SrRuO3 thin films using
pulsed laser epitaxy. Using epitaxial stabilization technique with atomically
flat polycrystalline SrTiO3 substrate, epitaxial polycrystalline SrRuO3 thin
film with crystalline quality of each grain comparable to that of
single-crystalline counterpart is realized. In particular, alleviated
compressive strain near the grain boundaries due to coalescence is evidenced
structurally, which induced enhancement of ferromagnetic ordering of the
polycrystalline epitaxial thin film. The structural variations associated with
the grain boundaries further reduce the thermal conductivity without
deteriorating the electronic transport, and lead to enhanced thermoelectric
efficiency in the epitaxial polycrystalline thin films, compared with their
single-crystalline counterpart.Comment: 24 pages, 5 figure
Anti-reflective nano- and micro-structures on 4H-SiC for photodiodes
In this study, nano-scale honeycomb-shaped structures with anti-reflection properties were successfully formed on SiC. The surface of 4H-SiC wafer after a conventional photolithography process was etched by inductively coupled plasma. We demonstrate that the reflection characteristic of the fabricated photodiodes has significantly reduced by 55% compared with the reference devices. As a result, the optical response Iillumination/Idark of the 4H-SiC photodiodes were enhanced up to 178%, which can be ascribed primarily to the improved light trapping in the proposed nano-scale texturing
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