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Articles 1201 - 1230 of 10020
Full-Text Articles in Entire DC Network
Describing The Experiences Of Students With Adhd Learning Science Content With Emerging Technologies, Rebecca Hite, Gina Childers, Gail Jones, Elysa Corin, Mariana Pereyra
Describing The Experiences Of Students With Adhd Learning Science Content With Emerging Technologies, Rebecca Hite, Gina Childers, Gail Jones, Elysa Corin, Mariana Pereyra
Journal of Science Education for Students with Disabilities
Emerging technologies, such as virtual reality, haptics, and 3-dimensionality, provide novel opportunities to allow students to investigate scientific phenomena by fostering perceptions of virtual presence, the feeling of being sensorially immersed and authentically interacting within a computer-generated virtual learning environment (VLE). Neurotypical learners are largely represented in VLE research on science learning, with fewer with neurodivergent learners, such as students with ADHD. This descriptive case study sought to address the dearth in the literature on neurodivergent students’ experiences, with emerging technologies, for learning science. Specifically, the case describes the extent to which neurodivergent learners experience the affordances of VLEs for …
Optimization In The Application Of Varnishes Barrier On Cartonboard Packaging, Andre Ramalheiro De Andrade, Maria Isabel Rodrigues Phd, Eduardo Luiz Machado Phd
Optimization In The Application Of Varnishes Barrier On Cartonboard Packaging, Andre Ramalheiro De Andrade, Maria Isabel Rodrigues Phd, Eduardo Luiz Machado Phd
Journal of Applied Packaging Research
In this work adjustments in the rotogravure printing process are proposed to the varnish water vapor transmission rate (WVTR) aiming to obtain results smaller than 20g/m²/24h. One case study was used for the propositions for improvements, where focused on varnish application process in a gravure printer for an eight-printing unit cartonboard packaging, maximum printing speed of 175 m/min and a 285 g/m² weight cartonboard. The possible variables that influenced the WVTR result were selected from the technical expertise of the people involved in the project, the analysis in the printing process with the application of directed trials using experimental designs …
Nature-Based Tourism Sustainability And Climatic Change Implication In Ikogosi Resort, Southwestern Nigeria, Opeyemi S. Aniramu Mr., Olabiyi O. Coker Mr., Raphael G. Odelola Mr.
Nature-Based Tourism Sustainability And Climatic Change Implication In Ikogosi Resort, Southwestern Nigeria, Opeyemi S. Aniramu Mr., Olabiyi O. Coker Mr., Raphael G. Odelola Mr.
Journal of Environmental Sustainability
The implications of climatic changes have been predicted to have devastating effects on biodiversity condition particularly nature-based tourism. In this study, investigation on the climatic characteristics in Ikogosi-Ekiti, Nigeria was conducted. Also, spatio-temporal changes of green and non-green cover were analysed for the study.
Climatic data from Nigeria Meteorological Agency (NIMET) for a period of 1975-2014 were analyzed to reveal the trend of climatic changes using appropriate statistical tool. A 30 meter Landsat image of TM 1991, ETH+ 2002 and OLI 2015 were used for the study. The satellite images were digitally processed using Arcgis10.3 and Fragstat 3.0. Species Diversity …
Environmental Sustainability In Lagos Periphery Housing, Funmilayo Mokunfayo Adedire Dr., Michael Babatunde Adegbile Dr
Environmental Sustainability In Lagos Periphery Housing, Funmilayo Mokunfayo Adedire Dr., Michael Babatunde Adegbile Dr
Journal of Environmental Sustainability
Peri-urban residential settlements in Nigerian cities grew phenomenally as a result of rapid urbanisation. But the spontaneous housing settlements are enmeshed in development-driven urban challenges. This study examines the environmental sustainability of a typical peri-urban settlement in Lagos, Ikorodu. A combination of case study based examination and application of International Urban Sustainability Indicators List framework (IUSIL) was used to achieve an integrated research method. Data were collected through primary and secondary sources including observation, structured questionnaires, interview and satellite images. Two stage clusters sampling was used to select 384 household heads as the study population. Quantitative data was done using …
Supporting Students With An Autism Spectrum Disorder In Engineering: K-12 And Beyond, Jennifer L. Kouo, Alexis Hahn, Sarah Morton, Jay Gregorio
Supporting Students With An Autism Spectrum Disorder In Engineering: K-12 And Beyond, Jennifer L. Kouo, Alexis Hahn, Sarah Morton, Jay Gregorio
Journal of Science Education for Students with Disabilities
Individuals with disabilities, including individuals with an autism spectrum disorder (ASD), are underrepresented in science, technology, engineering, and mathematics (STEM) fields. With the importance of STEM skills in future employment and other disciplines, effective instructional strategies must be identified to enhance early and sustained access to STEM for students with ASD. However, the literature identifying effective STEM-specific supports and practices for this population of students is sparse and regarding engineering, there are no empirical studies that focus on teaching engineering skills to students with ASD. Therefore, the article aims to provide an overview of the available literature on the perspectives …
Teaching Meiosis With The Dna Triangle Framework: A Classroom Activity That Changes How Students Think About Chromosomes, Leslie Kate Wright, Paulina Cortez, Margaret A. Franzen, Dina L. Newman
Teaching Meiosis With The Dna Triangle Framework: A Classroom Activity That Changes How Students Think About Chromosomes, Leslie Kate Wright, Paulina Cortez, Margaret A. Franzen, Dina L. Newman
Articles
Many biology students struggle to learn about the process of meiosis and have particular difficulty understanding the molecular basis of crossing over and the importance of homologous pairing for proper segregation. To help students overcome these challenges, we designed an activity that uses a newly developed Chromosome Connections Kit® from 3-D Molecular Designs to allow learners to explore meiosis at the molecular level. We took a backwards design approach in constructing an effective classroom activity. We developed evidence-based learning objectives and designed a crossing over activity that targets students' misconceptions and key concepts about meiosis. Assessment questions were designed based …
Cultivating The Cyborg Voice: Technology In The Creative Writing Classroom, Rebecca Valley
Cultivating The Cyborg Voice: Technology In The Creative Writing Classroom, Rebecca Valley
Journal of Creative Writing Studies
This article takes a critical look at pieces generated from a capstone project in a recent mixed-genre Intro to Creative Writing workshop. It was inspired by an open-ended creative project asking students to use technology to generate unconventional works of fiction, poetry, memoir, and theatre. Writer and educator Rebecca Valley's hope when assigning this project was to encourage students to innovate and step outside their standard forms. But beyond mere innovation of form, students surprised her in their capacity to use technology to hybridize their authorial voices – rather than merely changing the form of their own words, they became …
Writing Here, Writing Now; Making Sense Of It All: Examining Cultural And Historical Context In The Introductory Creative Writing Class, Oindrila Mukherjee
Writing Here, Writing Now; Making Sense Of It All: Examining Cultural And Historical Context In The Introductory Creative Writing Class, Oindrila Mukherjee
Journal of Creative Writing Studies
Writers are a product of their environment. The time and place in which they live inevitably impact what they write, why they write, and how they write. I assign a brief reflection essay in my Introduction to Creative Writing class which asks students to consider social, historical, and cultural factors that influence the poetry, fiction, or nonfiction they write, either directly or indirectly. It encourages students to identify patterns in their writing, and to reflect on what it means to live in a specific part of the world at a specific time in history. This makes them more aware of …
(Re)Considering Craft And Centralizing Cultures: A Revision Of The Introductory Creative Writing Workshop, Zoë Bossiere, Micah Mccrary
(Re)Considering Craft And Centralizing Cultures: A Revision Of The Introductory Creative Writing Workshop, Zoë Bossiere, Micah Mccrary
Journal of Creative Writing Studies
This article explores options for introductory creative writing curricula that allow for and encourage a greater consideration of personal identity and audience on the part of the student-author. It reaches toward possibilities for revising the introductory creative writing course as a space for student-authors to not only consider the cultural positions of the professional authors they study, but also the ways in which their own subject-positions influence their writing practices, craft choices, and understandings of genre. The article overall proposes a holistic revision to the standard, introductory creative writing curriculum, moving student-authors beyond considerations of “good” creative writing, and toward …
Central Nervous System: Development, Function, And Applications Of The Glymphatic System (With Additional Neuroscience Topics), Austin Fisher
Central Nervous System: Development, Function, And Applications Of The Glymphatic System (With Additional Neuroscience Topics), Austin Fisher
Theses
The presence of accumulated toxic protein aggregations such as amyloid-β, tau, and α- synuclein are implicated in the development of neurodegenerative diseases such as Alzheimer’s (Soto 2003). Thus, the clearance or removal of these harmful byproducts in healthy brain aging previously represented an unknown system whose functionality is likely to be clinically significant. The finding that directional flow of CSF and interstitial fluid through the brain ensures brain clearance sparked numerous research projects which sought to elaborate on what is now known as the glymphatic system. After initial research revealed the fundamentals of the glymphatic system, scientist J. Iliff defined …
Semantic Segmentation And Change Detection In Satellite Imagery, Raaga Madappa
Semantic Segmentation And Change Detection In Satellite Imagery, Raaga Madappa
Theses
Processing of satellite images using deep learning and computer vision methods is needed for urban planning, crop assessments, disaster management, and rescue and recovery operations. Deep learning methods which are trained on ground-based imagery do not translate well to satellite imagery. In this thesis, we focus on the tasks of semantic segmentation and change detection in satellite imagery. A segmentation framework is presented based on existing waterfall-based modules. The proposed framework, called PyramidWASP, or PyWASP for short, can be used with two modules. PyWASP with the Waterfall Atrous Spatial Pooling (WASP) module investigates the effects of adding a feature pyramid …
Anchor Self-Calibrating Schemes For Uwb Based Indoor Localization, Jonathan Pereira
Anchor Self-Calibrating Schemes For Uwb Based Indoor Localization, Jonathan Pereira
Theses
Traditional indoor localization techniques that use Received Signal Strength or Inertial Measurement Units for dead-reckoning suffer from signal attenuation and sensor drift, resulting in inaccurate position estimates. Newly available Ultra-Wideband radio modules can measure distances at a centimeter-level accuracy while mitigating the effects of multipath propagation due to their very fine time resolution. Known locations of fixed anchor nodes are required to determine the position of tag nodes within an indoor environment. For a large system consisting of several anchor nodes spanning a wide area, physically mapping out the locations of each anchor node is a tedious task and thus …
Data Augmentation For Automatic Speech Recognition For Low Resource Languages, Ronit Damania
Data Augmentation For Automatic Speech Recognition For Low Resource Languages, Ronit Damania
Theses
In this thesis, we explore several novel data augmentation methods for improving the performance of automatic speech recognition (ASR) on low-resource languages. Using a 100-hour subset of English LibriSpeech to simulate a low-resource setting, we compare the well-known SpecAugment augmentation approach to these new methods, along with several other competitive baselines. We then apply the most promising combinations of models and augmentation methods to three genuinely under-resourced languages using the 40-hour Gujarati, Tamil, Telugu datasets from the 2021 Interspeech Low Resource Automatic Speech Recognition Challenge for Indian Languages. Our data augmentation approaches, coupled with state-of-the-art acoustic model architectures and language …
Advanced Photovoltaic Devices Enabled By Lattice-Mismatched Epitaxy, Anastasiia Fedorenko
Advanced Photovoltaic Devices Enabled By Lattice-Mismatched Epitaxy, Anastasiia Fedorenko
Theses
Thin-film III-V semiconductor-based photovoltaic (PV) devices, whose light conversion efficiency is primarily limited by the minority carrier lifetimes, are commonly designed to minimize the formation of crystalline defects (threading dislocations or, in extreme cases, fractures) that can occur, in particular, due to a mismatch in lattice constants of the epitaxial substrate and of the active film. At the same time, heteroepitaxy using Si or metal foils instead of costly III-V substrates is a pathway to enabling low-cost thin-film III-V-based PV and associated devices, yet it requires to either use metamorphic buffers or lateral confinement either by substrate patterning or by …
Punnett Square Or Protein Production? The Expert-Novice Divide For Conceptions Of Genes And Gene Expression, Dina L. Newman, Aeowynn Coakley, Aidan Link, Korinne Mills, Leslie Kate Wright
Punnett Square Or Protein Production? The Expert-Novice Divide For Conceptions Of Genes And Gene Expression, Dina L. Newman, Aeowynn Coakley, Aidan Link, Korinne Mills, Leslie Kate Wright
Articles
Concepts of molecular biology and genetics are difficult for many biology undergraduate students to master yet are crucial for deep understanding of how life works. By asking students to draw their ideas, we attempted to uncover the mental models about genes and gene expression held by biology students (n = 23) and experts (n = 18) using semistructured interviews. A large divide was identified between novice and expert conceptions. While experts typically drew box-and-line representations and thought about genes as regions of DNA that were used to encode products, students typically drew whole chromosomes rather than focusing on gene structure …
An Artificial Intelligence Tool For Accessible Science Education, Jacob D. Watters, April Hill Dr., Melissa Weinrich Dr., Cary Supalo, Feng Jiang Dr.
An Artificial Intelligence Tool For Accessible Science Education, Jacob D. Watters, April Hill Dr., Melissa Weinrich Dr., Cary Supalo, Feng Jiang Dr.
Journal of Science Education for Students with Disabilities
One of the most important issues in accessible science education is creating a laboratory workspace accessible to blind students or students with visual impairments (VI). Although these students are often provided access to the science lectures, they are usually denied full participation in hands-on laboratory work. Current solutions to this problem focus on providing special accommodations such as asking sighted lab partners to complete the hands-on work. Although the accessibility of laboratory devices in modern science education has been improved in recent years, students with VI often remain passive learners. In this work, we developed a new artificial intelligence tool, …
Making Scientific And Technical Materials Pervasively Accessible, Jason J.G. White
Making Scientific And Technical Materials Pervasively Accessible, Jason J.G. White
Journal of Science Education for Students with Disabilities
In this paper, the question is explored of what policies, standards and practices are desirable to ensure that hardware, software and publications in the sciences and associated disciplines are created from the outset to be accessible to people with disabilities. Insight into this question can be obtained by considering the unique accessibility challenges that these materials pose, including complexities of notation, language, and graphical representation.
Having analyzed what sets this problem apart from broader issues of accessibility, the advantages and limitations of current international standards are reviewed, and contemporary developments in standards and policies are considered from a strategic perspective. …
The Perceptions Of Teachers Of Students With Visual Impairments On Students With Visual Impairments And Graphing: How To Teach, Ashley N. Nashleanas Ph.D.
The Perceptions Of Teachers Of Students With Visual Impairments On Students With Visual Impairments And Graphing: How To Teach, Ashley N. Nashleanas Ph.D.
Journal of Science Education for Students with Disabilities
Many gaps exist in what is known around teaching students with visual impairments (SVI) about how to use graphs (Rosenblum et al., 2018; Rosenblum & Herzberg, 2015; Zebehazy & Wilton, 2014a;2014b;2014c). When teachers first experience a student with a visual impairment, some of the questions that come to mind are: How can I be sure this student understands what I am saying about these graphs I show on the board? Will this student be able to keep up? The study herein, based on findings from Author (2018), serves as a guide for teachers to consider in the case that SVI …
The Playground: An Online Summer Camp For Deaf And Hard Of Hearing Children, Emma Monson, Krista Schumacher, Annmarie Thomas
The Playground: An Online Summer Camp For Deaf And Hard Of Hearing Children, Emma Monson, Krista Schumacher, Annmarie Thomas
Journal of Science Education for Students with Disabilities
The PLAYground summer camp was developed by the Playful Learning Lab (PLL) at the University of St. Thomas, an undergraduate research group with a focus on learning through play. Through a partnership with a local school serving deaf and hard of hearing students, the PLAYground was designed to provide content to the deaf and hard of hearing community. Over the course of 8 weeks, 84 students were provided with materials that correspond with activities on the website. Each activity is accompanied with a lesson plan and video, both of which are available in English, American Sign Language, Spanish, and Arabic. …
Build Your Own Body Mod: Empowerment Through Prototyping And Design, Anaiss Arreola, Katherine R. Ganim
Build Your Own Body Mod: Empowerment Through Prototyping And Design, Anaiss Arreola, Katherine R. Ganim
Journal of Science Education for Students with Disabilities
When you don’t have a hand, what could you have instead? This article introduces the impact of inviting youth with disabilities to learn tools and technology to design their own solutions and advocate for their own future. This approach to programming is rooted in a mindset of designing WITH, not FOR. Not only are design outcomes improved when users are incorporated into the process, but this approach has been shown to improve confidence in creating one’s own solutions. These programs include hands-on “design-your-own-body-mod” workshops, as well as a budding inclusive design consultancy led by youth with disabilities. Through this programming, …
Listening To Current Practice: Patient Involvement In The Pharmaceutical Packaging Design Process, Giana Carli Lorenzini, Annika Olsson, Andreas Larsson
Listening To Current Practice: Patient Involvement In The Pharmaceutical Packaging Design Process, Giana Carli Lorenzini, Annika Olsson, Andreas Larsson
Journal of Applied Packaging Research
Multiple functional challenges in the use of pharmaceutical packaging reveal a great need of packaging to be designed inclusively. This study investigates patient involvement in the pharmaceutical packaging design process by analysing interview data from representatives of the pharmaceutical and packaging industry. Four main themes related to patient involvement were uncovered: patient expertise levels, patient involvement modes, factors encouraging patient involvement, and factors discouraging patient involvement. Passive patient involvement modes were found to be dominant due to regulations and a traditional perspective regarding physical testing. However, active patient involvement modes were identified, motivated by empathy and understanding of the lives …
Comparing Adobe’S Unsharp Masks And High-Pass Filters In Photoshop Using The Visual Information Fidelity Metric, Nhung T. Pham
Comparing Adobe’S Unsharp Masks And High-Pass Filters In Photoshop Using The Visual Information Fidelity Metric, Nhung T. Pham
Theses
The present study examines image sharpening techniques quantitatively. A technique known as unsharp masking has been the preferred image sharpening technique for imaging professionals for many years. More recently, another professional-level sharpening solution has been introduced, namely, the high-pass filter technique of image sharpening. An extensive review of the literature revealed no purely quantitative studies that compared these techniques. The present research compares unsharp masking (USM) and high-pass filter (HPF) sharpening using an image quality metric known as Visual Information Fidelity (VIF). Prior researchers have used VIF data in research aimed at improving the USM sharpening technique. The present study …
A Cost Analysis And Policy Review Of Digestate When Deemed A Waste Product And A Fertilizer., Sarah Chandrika Cannon
A Cost Analysis And Policy Review Of Digestate When Deemed A Waste Product And A Fertilizer., Sarah Chandrika Cannon
Theses
Food waste is a multifaceted issue that has proposed solutions as complex as the problem itself. New York State recently announced a food waste ban, effective January of 2020, that will require large scale food waste producers to manage the waste through alternative methods as opposed to disposal in a landfill. One of those methods is through Anaerobic Digestion, a process in which organic matter chemically reacts with bacteria to produce a biofuel along with an associated byproduct, namely digestate. The biofuel in most cases is used to produce electricity to feed back to the grid acting as a net …
The Use Of Machine Learning In Assessing Suicide Risk: A Meta-Analysis, Rachael Kang
The Use Of Machine Learning In Assessing Suicide Risk: A Meta-Analysis, Rachael Kang
Theses
Suicide is a devastating act in which a person takes their own life. Decades of research into suicide have identified a myriad of risk factors that have been used to create assessments of suicide risk and suicidality. However, more recent research has suggested that these identified risk factors may have no better predictive ability than chance, perhaps because suicide is actually a multi-dimensional, multi-faceted construct that has been viewed too simplistically for prediction’s sake. To try and better appreciate the complex nature of suicide while also increasing prediction accuracy, researchers have turned to machine learning. This study sought to meta-analyze …
Ageing Performance Of Biodegradable Pla For Durable Applications, Rohan Pujari
Ageing Performance Of Biodegradable Pla For Durable Applications, Rohan Pujari
Theses
The durability of 2 commercially available injection mold grades and one extrusion grade of polylactic acid (PLA) was assessed. Here, the materials were exposed to elevated temperatures/humidity for a period of several weeks. Moisture absorption, molecular weight change, mechanical properties, crystallinity changes, and microscopic imaging were all monitored at regular intervals throughout the course of the combined heat and humidity ageing study. The conditions for the ageing study were set at 60°C and 45% relative humidity and all three PLA grades showed a significant increase in crystallinity and conversely reduced mechanical performance over the 68-day ageing period. Microscopic images of …
Evaluation Of Stretch Film Behavior During Long-Term Storage Under Different Atmospheric Conditions, Kyle Dunno, Maria Symanski
Evaluation Of Stretch Film Behavior During Long-Term Storage Under Different Atmospheric Conditions, Kyle Dunno, Maria Symanski
Journal of Applied Packaging Research
This study examined the post-application behavior of two 20.3 micron machine stretch films, one categorized as high-performance and one as general-performance, for thirty days while stored at either 23°C or 38°C. For each film type, the stretch film was applied to a simulated unit load to produce neutral and positive applied total stretch scenarios. The relaxation curves developed from each test indicate the relaxation rate of the films varied based on the storage condition. Observed was an average of 41% containment loss for both high-performance and general-purpose films when the simulated loads were stored at 38°C. For simulated loads stored …
Simulation Analysis Of Mixed Bulk And Rack Warehouse Systems, Rukshar Bhisti
Simulation Analysis Of Mixed Bulk And Rack Warehouse Systems, Rukshar Bhisti
Theses
With the growth of the supply chain and increased customer demand, warehouse operation has become very important. One of the critical functions of warehouse operation is to have a warehouse layout such that the day-to-day operations enable on-time delivery. Poor warehouse design can lead to ineffective warehouse space utilization and incur the cost associated with inefficient operations. The purpose of this study is to develop an analysis tool that enables companies to identify the appropriate mix of bulk and rack storage locations to utilize warehouse space effectively. A simulation-based methodology is used to determine the optimal mix of racks and …
Improving Sub-Bandgap Carrier Collection In Gaas Solar Cells By Optimizing Ingaas Quantum Wells Using Strain-Balancing And Distributed Bragg Reflectors, Brandon Bogner
Theses
Bulk carrier collection in GaAs solar cells is limited by the GaAs bandgap of 1.42eV, leaving low-energy photons below 1.42eV uncollected. The addition of low bandgap materials allows for the collection of these ‘unreachable’ photons in a GaAs solar cell.In_(x)Ga_(1-x)As can have bandgaps between 0.354-1.42eV based on indium composition, allowing for tunable collection at longer wavelengths. Including thin 9.2nm In_(x)Ga_(1-x)As quantum wells in the i-region of a GaAs n-i-p structure enhances photon collection past the 870nm GaAs band edge, increasing current production and potentially leading to higher efficiencies. Increased current production in GaAs solar cells is especially valuable since GaAs …
1:38, Yuhao Sheng
1:38, Yuhao Sheng
Theses
This thesis support paper demonstrated the entire process of creating this thesis film "1:38," describing how this film completed from a simple inspiration to a finished film project. Besides, this paper also describes how the author's ideas formed from the beginning and his inner struggle during the quarantine period, which inspired the author to create this film. Thirdly, this paper clarifies how the whole film team worked and our considerations about different problems during the film shooting. I believe this paper would be a good reference for the students to shoot their films with a low budget.
Coupled Dynamics Of Vehicle-Bridge Interaction System Using High Efficiency Method, Lu Sun, Xingzhuang Zhao
Coupled Dynamics Of Vehicle-Bridge Interaction System Using High Efficiency Method, Lu Sun, Xingzhuang Zhao
Articles
Vehicle-bridge interaction is the core for a variety of applications, including vehicle vibration, bridge vibration, bridge structural health monitoring, weight-in-motion, bridge condition inspection, and load rating. These applications give rise to a great interest in pursuing a high-efficiency method that can tackle intensive computation in the context of vehicle-bridge interaction. This paper studies the accuracy and efficiency of discretizing the beam in space as lumped masses using the flexibility method and as finite elements using the stiffness method. Computational complexity analysis is carried out along with a numerical case study to compare the accuracy and efficiency of both methods against …