Teaching energy in living systems to a blind student in an inclusive classroom environment

2019 ◽  
Vol 20 (4) ◽  
pp. 890-901
Author(s):  
Dilek Teke ◽  
Mustafa Sozbilir
Keyword(s):  
Classroom Environment ◽  
Single Case ◽  
Low Cost ◽  
3D Models ◽  
Molecular Structures ◽  
Instructional Materials ◽  
Living Systems ◽  
Observation Data ◽  
Symbolic Language ◽  
Congenitally Blind

This study aimed to identify the needs of a 10th grade congenitally blind student in an inclusive chemistry classroom and design and develop tactile materials to teach the ‘energy in living systems’ topic with particular emphasis on covering the symbolic language of the chemistry. A single case study design was used to carry out an in-depth and thorough investigation. The student's needs were identified through classroom observations and interviews. Based on the needs identified, 2D and 3D tactile instructional materials were designed and developed to cover the topic. Interview and observation data suggested that following the instructions the student developed an understanding of the concepts regarding the energy in living systems together with the symbolic representations used in chemistry. He showed an understanding of molecular structures when he was asked to recognize the 3D models of the molecular structures. He was able to recognize all of the structures and could respond to questions regarding the parts of these molecular structures. Although the results are limited to one congenitally blind student, there is evidence that a blind student can learn complex molecular structures if he/she was provided with materials which suit his/her needs. The results also suggest evidence of how to produce low cost instructional materials for a blind student in chemistry.

scholarly journals La Torre della Marina di Vietri sulla Costa d’Amalfi: test statistico-predittivi di dati fotogrammetrici

X ◽  
2020 ◽  
Author(s):  
Sara Morena ◽  
Salvatore Barba
Keyword(s):  
Single Case ◽  
Low Cost ◽  
Relative Effectiveness ◽  
Three Dimensional ◽  
3D Models ◽  
Predictive Test ◽  
Historical Building ◽  
Starting Point ◽  
Propagation Law ◽  
The Individual

The Tower of Marina di Vietri on Amalfi Coast: a statistical-predictive test of photogrammetric dataThe focus of the work is on close-range photogrammetry and mainly on the low-cost technologies, experimented in the survey of Tower of Marina di Vietri, a historical building erected in the sixteenth century at Vietri sul Mare in the Province of Salerno. The general objective is to codify a methodology for objectifying the comparisons of the results; hence, the research starts from an original analysis conducted on the returned orthophotos by several photogrammetric paradigms. To estimate its reliability and precision, we proceeded, at first, with the extension and application of an error propagation law and then with the validation of the comparison according to a predictive type test. The first results are presented here after a study on raster images generated according to different algorithms. Subsequently, on each graphic product, 73 points were identified and for each of the relative coordinates the deviation are evaluated by verifying them with the value of the standard deviation. Consequently, for the purpose of greater validation of the methodology, a predictive test was implemented with the aim to confirm the criterion used for the comparison and to guarantee, in probabilistic terms, the values analysed; finally, a further three-dimensional analysis was conducted directly on the 3D models. It is banal to observe that aleatory –subjectivity, etc.– which often characterizes already known approaches, in any case assumed as a starting point, does not always allow to obtain generally valid results and, therefore, extendable beyond the single case study. The implementation of this first test, otherwise, proved to be extremely valid in the survey for architecture, both for an absolute evaluation of the quality of the individual results and for the possibility to estimate, also predictively, the relative effectiveness of the method used. This guarantees the evaluation of the relative percentages of errors in probabilistic terms.

scholarly journals Comparative Analysis of Digital Models of Objects of Cultural Heritage Obtained by the “3D SLS” and “SfM” Methods

2021 ◽  
Vol 11 (12) ◽  
pp. 5321
Author(s):  
Marcin Barszcz ◽  
Jerzy Montusiewicz ◽  
Magdalena Paśnikowska-Łukaszuk ◽  
Anna Sałamacha
Keyword(s):  
Cultural Heritage ◽  
Low Cost ◽  
Three Dimensional ◽  
3D Models ◽  
Silk Road ◽  
Digital Models ◽  
Global Pandemic ◽  
University Of Technology ◽  
Three Dimensional Models ◽  
3D Digitisation

In the era of the global pandemic caused by the COVID-19 virus, 3D digitisation of selected museum artefacts is becoming more and more frequent practice, but the vast majority is performed by specialised teams. The paper presents the results of comparative studies of 3D digital models of the same museum artefacts from the Silk Road area generated by two completely different technologies: Structure from Motion (SfM)—a method belonging to the so-called low-cost technologies—and by Structured-light 3D Scanning (3D SLS). Moreover, procedural differences in data acquisition and their processing to generate three-dimensional models are presented. Models built using a point cloud were created from data collected in the Afrasiyab museum in Samarkand (Uzbekistan) during “The 1st Scientific Expedition of the Lublin University of Technology to Central Asia” in 2017. Photos for creating 3D models in SfM technology were taken during a virtual expedition carried out under the “3D Digital Silk Road” program in 2021. The obtained results show that the quality of the 3D models generated with SfM differs from the models from the technology (3D SLS), but they may be placed in the galleries of the vitrual museum. The obtained models from SfM do not have information about their size, which means that they are not fully suitable for archiving purposes of cultural heritage, unlike the models from SLS.

scholarly journals Lively Social Space, Well-Being Activity, and Urban Design: Findings From a Low-Cost Community-Led Public Space Intervention

2016 ◽  
Vol 49 (6) ◽  
pp. 685-716 ◽  
Author(s):  
Jamie Anderson ◽  
Kai Ruggeri ◽  
Koen Steemers ◽  
Felicia Huppert
Keyword(s):  
Public Space ◽  
Urban Design ◽  
Design Research ◽  
Local Community ◽  
Social Space ◽  
Low Cost ◽  
Well Being ◽  
Observation Data ◽  
Before And After ◽  
The Impact

Empirical urban design research emphasizes the support in vitality of public space use. We examine the extent to which a public space intervention promoted liveliness and three key behaviors that enhance well-being (“connect,” “be active,” and “take notice”). The exploratory study combined directly observed behaviors with self-reported, before and after community-led physical improvements to a public space in central Manchester (the United Kingdom). Observation data ( n = 22,956) and surveys (subsample = 212) were collected over two 3-week periods. The intervention brought significant and substantial increases in liveliness of the space and well-being activities. None of these activities showed increases in a control space during the same periods. The findings demonstrate the feasibility of the research methods, and the impact of improved quality of outdoor neighborhood space on liveliness and well-being activities. The local community also played a key role in conceiving of and delivering an effective and affordable intervention. The findings have implications for researchers, policy makers, and communities alike.

scholarly journals Tracking the Evolution of Riverbed Morphology on the Basis of UAV Photogrammetry

2021 ◽  
Vol 13 (4) ◽  
pp. 829
Author(s):  
Teresa Gracchi ◽  
Guglielmo Rossi ◽  
Carlo Tacconi Stefanelli ◽  
Luca Tanteri ◽  
Rolando Pozzani ◽  
...  
Keyword(s):  
Management Practices ◽  
Low Cost ◽  
3D Models ◽  
Vegetation Coverage ◽  
Detection Analysis ◽  
Digital Terrain ◽  
Fluvial Dynamics ◽  
Aerial Vehicle ◽  
One Year ◽  
Short Time

Unmanned aerial vehicle (UAV) photogrammetry has recently become a widespread technique to investigate and monitor the evolution of different types of natural processes. Fluvial geomorphology is one of such fields of application where UAV potentially assumes a key role, since it allows for overcoming the intrinsic limits of satellite and airborne-based optical imagery on one side, and in situ traditional investigations on the other. The main purpose of this paper was to obtain extensive products (digital terrain models (DTMs), orthophotos, and 3D models) in a short time, with low costs and at a high resolution, in order to verify the capability of this technique to analyze the active geomorphic processes on a 12 km long stretch of the French–Italian Roia River at both large and small scales. Two surveys, one year apart from each other, were carried out over the study area and a change detection analysis was performed on the basis of the comparison of the obtained DTMs to point out and characterize both the possible morphologic variations related to fluvial dynamics and modifications in vegetation coverage. The results highlight how the understanding of different fluvial processes may be improved by appropriately exploiting UAV-based products, which can thus represent a low-cost and non-invasive tool to crucially support decisionmakers involved in land management practices.

scholarly journals Positioning Evaluation of Single and Dual-Frequency Low-Cost GNSS Receivers Signals Using PPP and Static Relative Methods in Urban Areas

2021 ◽  
Vol 11 (22) ◽  
pp. 10642
Author(s):  
Rosendo Romero-Andrade ◽  
Manuel E. Trejo-Soto ◽  
Alejandro Vega-Ayala ◽  
Daniel Hernández-Andrade ◽  
Jesús R. Vázquez-Ontiveros ◽  
...  
Keyword(s):  
Urban Areas ◽  
Precise Point Positioning ◽  
Low Cost ◽  
Observation Data ◽  
Dual Frequency ◽  
Positional Accuracy ◽  
Gnss Receivers ◽  
Point Positioning ◽  
Error Circle ◽  
Vertical Positioning

A positional accuracy obtained by the Precise Point Positioning and static relative methods was compared and analyzed. Test data was collected using low-cost GNSS receivers of single- and dual-frequency in urban areas. The data was analyzed for quality using the TEQC program to determine the degree of affectation of the signal in the urban area. Low-cost GNSS receivers were found to be sensitive to the multipath effect, which impacts positioning. The horizontal and vertical accuracy was evaluated with respect to Mexican regulations for the GNSS establishment criteria. Probable Error Circle (CEP) and Vertical Positioning Accuracy (EPV) were performed on low cost GNSS receiver observation data. The results show that low-cost dual-frequency GNSS receivers can be used in urban areas. The precision was obtained in the order of 0.013 m in the static relative method. The results obtained are comparable to a geodetic receiver in a geodetic baseline of <20 km. The study does not recommend using single and dual frequencies low cost GNSS receivers based on results obtained by the Precise Point Positioning (PPP) method in urban areas. The inclusion of the GGM10 model reduces the vertical precision obtained by using low cost GNSS receivers in both methods, conforming to the regulations only in the horizontal component.

scholarly journals UNDERWATER PHOTOGRAMMETRY DIGITAL SURFACE MODEL (DSM) OF THE SUBMERGED SITE OF THE ANCIENT LIGHTHOUSE NEAR QAITBAY FORT IN ALEXANDRIA, EGYPT

2019 ◽  
Vol XLII-2/W10 ◽  
pp. 1-8 ◽  
Author(s):  
M. Abdelaziz ◽  
M. Elsayed
Keyword(s):  
3D Model ◽  
Low Cost ◽  
Data Gathering ◽  
Archaeological Site ◽  
3D Models ◽  
Surface Model ◽  
Digital Surface Model ◽  
Architectural Elements ◽  
3D Photogrammetry ◽  
First Time

<p><strong>Abstract.</strong> Underwater photogrammetry in archaeology in Egypt is a completely new experience applied for the first time on the submerged archaeological site of the lighthouse of Alexandria situated on the eastern extremity of the ancient island of Pharos at the foot of Qaitbay Fort at a depth of 2 to 9 metres. In 2009/2010, the CEAlex launched a 3D photogrammetry data-gathering programme for the virtual reassembly of broken artefacts. In 2013 and the beginning of 2014, with the support of the Honor Frost Foundation, methods were developed and refined to acquire manual photographic data of the entire underwater site of Qaitbay using a DSLR camera, simple and low cost materials to obtain a digital surface model (DSM) of the submerged site of the lighthouse, and also to create 3D models of the objects themselves, such as statues, bases of statues and architectural elements. In this paper we present the methodology used for underwater data acquisition, data processing and modelling in order to generate a DSM of the submerged site of Alexandria’s ancient lighthouse. Until 2016, only about 7200&amp;thinsp;m<sup>2</sup> of the submerged site, which exceeds more than 13000&amp;thinsp;m<sup>2</sup>, was covered. One of our main objectives in this project is to georeference the site since this would allow for a very precise 3D model and for correcting the orientation of the site as regards the real-world space.</p>

scholarly journals Accessing 3D Printed Vascular Phantoms for Procedural Simulation

2021 ◽  
Vol 7 ◽  
Author(s):  
Jasamine Coles-Black ◽  
Damien Bolton ◽  
Jason Chuen
Keyword(s):  
3D Printing ◽  
Endovascular Procedures ◽  
Low Cost ◽  
3D Models ◽  
Routine Care ◽  
Aortic Aneurysms ◽  
Patient Specific ◽  
Ct Angiogram ◽  
Abdominal Aortic ◽  
3D Printed

Introduction: 3D printed patient-specific vascular phantoms provide superior anatomical insights for simulating complex endovascular procedures. Currently, lack of exposure to the technology poses a barrier for adoption. We offer an accessible, low-cost guide to producing vascular anatomical models using routine CT angiography, open source software packages and a variety of 3D printing technologies.Methods: Although applicable to all vascular territories, we illustrate our methodology using Abdominal Aortic Aneurysms (AAAs) due to the strong interest in this area. CT aortograms acquired as part of routine care were converted to representative patient-specific 3D models, and then printed using a variety of 3D printing technologies to assess their material suitability as aortic phantoms. Depending on the technology, phantoms cost $20–$1,000 and were produced in 12–48 h. This technique was used to generate hollow 3D printed thoracoabdominal aortas visible under fluoroscopy.Results: 3D printed AAA phantoms were a valuable addition to standard CT angiogram reconstructions in the simulation of complex cases, such as short or very angulated necks, or for positioning fenestrations in juxtarenal aneurysms. Hollow flexible models were particularly useful for device selection and in planning of fenestrated EVAR. In addition, these models have demonstrated utility other settings, such as patient education and engagement, and trainee and anatomical education. Further study is required to establish a material with optimal cost, haptic and fluoroscopic fidelity.Conclusion: We share our experiences and methodology for developing inexpensive 3D printed vascular phantoms which despite material limitations, successfully mimic the procedural challenges encountered during live endovascular surgery. As the technology continues to improve, 3D printed vascular phantoms have the potential to disrupt how endovascular procedures are planned and taught.

scholarly journals Metric contrast of thermal 3D models of large industrial facilities obtained by means of low-cost infrared sensors in UAV platforms

2021 ◽  
pp. 1-27
Author(s):  
Julio Manuel de Luis-Ruiz ◽  
Javier Sedano-Cibrián ◽  
Rubén Pérez-Álvarez ◽  
Raúl Pereda-García ◽  
Beatriz Malagón-Picón
Keyword(s):  
Low Cost ◽  
3D Models ◽  
Infrared Sensors ◽  
Industrial Facilities

Reconstruction of Kyoto of the Edo era based on arts and historical documents: 3D urban model based on historical GIS data

2009 ◽  
Vol 3 (1-2) ◽  
pp. 21-38 ◽  
Author(s):  
Yuzuru Isoda ◽  
Akihiro Tsukamoto ◽  
Yoshihiro Kosaka ◽  
Takuya Okumura ◽  
Masakazu Sawai ◽  
...  
Keyword(s):  
Large Scale ◽  
Low Cost ◽  
3D Models ◽  
Historical Documents ◽  
Historical Gis ◽  
Model Based ◽  
Urban Model ◽  
Gis Data ◽  
Point Data

This paper explores a method for creating large-scale urban 3D models using Historical GIS data. The method is capable of automatically generating realistic VR models based on GIS data at a low cost. 3D models of houses are created from polygon data, fences from line data, and pedestrians and trees from point data. The method is applied to the Virtual Kyoto Project in which the landscape of the whole city of Kyoto of the early Edo era (ca 17C) is reconstructed.

Recommendations to Improve Education for Students with Autism through Distance Learning Strategies and Assistive Technologies during the COVID-19 Pandemic

2021 ◽  
pp. 1-8
Author(s):  
Dr. Dalliah Alkhoui
Keyword(s):  
Distance Learning ◽  
Online Education ◽  
Learning Strategies ◽  
Inclusive Education ◽  
Classroom Environment ◽  
Assistive Technologies ◽  
Instructional Materials ◽  
Educational Challenges ◽  
Home Based ◽  
Students With Autism

The COVID-19 pandemic has created new educational challenges and presented new opportunities for educators and students with learning disabilities, especially due to the increased awareness and focus on inclusive education. While extensive research has been done on effective strategies for teaching students with autism in an inclusive classroom environment, there is minimal research conducted on strategies for distance learning education for students with autism. This group is at a higher risk of being excluded from online education compared to their peers who have no learning difficulties. Recommended strategies for enhancing effective online education for students with autism include strategies for developing instructional materials. Another is collaborative engagements with all stakeholders to develop an understanding of each student’s strengths and weaknesses. The other is the provision of teacher training and continuous professional development. Next up is developing strategies for creating effective home-based learning environments such as providing all the required infrastructure for online learning. Finally, are strategies for instructional delivery such as the use of effective assistive technologies such as Zoom, collaboration with caregivers, and ensuring the active engagement of the students during instruction delivery.

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