Refining field portable technology: quantification of arsenic field test kits

This thesis investigates issues related to the detection of arsenic from water sources and the analysis performed to quantify its presence. Through the literature it is shown that colourimetric means of analysis are essential, but current techniques suffer quantitatively, generally relying on a technicians’ ability to visually discern colour. An increased level of control, over the Gutzeit method, would serve to drastically improve the existing means of analysis. With reliance being placed on simple field portable technologies, considerable room has been left for misclassifications. Methodology and means of using these commercial products must therefore be tuned, if they are to be globally accepted as a means of quantification. This thesis compared both benchmark and colourimetric technologies, to redefine in-field analysis. Here the goals were to improve both the classification of arsenic concentrations in water and alleviate the need for technical proficiency. A framework was built under ideal conditions, moving away from the qualitative state of existing colourimetric analyses. A combination of cameras and imaging apparati were put to use, in the acquisition of colourimetric indicator images. MATLAB algorithms were applied to quantitatively discern samples with assembled calibration curves.

Refining field portable technology: quantification of arsenic field test kits

This thesis investigates issues related to the detection of arsenic from water sources and the analysis performed to quantify its presence. Through the literature it is shown that colourimetric means of analysis are essential, but current techniques suffer quantitatively, generally relying on a technicians’ ability to visually discern colour. An increased level of control, over the Gutzeit method, would serve to drastically improve the existing means of analysis. With reliance being placed on simple field portable technologies, considerable room has been left for misclassifications. Methodology and means of using these commercial products must therefore be tuned, if they are to be globally accepted as a means of quantification. This thesis compared both benchmark and colourimetric technologies, to redefine in-field analysis. Here the goals were to improve both the classification of arsenic concentrations in water and alleviate the need for technical proficiency. A framework was built under ideal conditions, moving away from the qualitative state of existing colourimetric analyses. A combination of cameras and imaging apparati were put to use, in the acquisition of colourimetric indicator images. MATLAB algorithms were applied to quantitatively discern samples with assembled calibration curves.

Perspectives from Students: How to Tame the Chaos and Harness the Power of Technology for Learning

Technology continues to form an important part of the educational landscape, although the value of portable devices as learning tools is still being explored and debated. In light of the technology-based teaching methods suddenly brought into effect in response to the COVID-19 pandemic, the deliberate use of technology for learning is increasingly significant. The purpose of this article is to highlight student perspectives of learning with portable devices to inform the use of portable technology in the Canadian school system going forward. To gather student perceptions, the research team surveyed 704 students in grades 6 to 9 about their use of iPads in the classroom during a 1:1 technology initiative. While students were enthusiastic about the presence of portable technology, they also shared mixed feelings about the use of such technology as a learning tool. Key themes fell into three categories—engagement, inclusivity, and learning—as students shared their insight into the academic, social, and physical barriers that exist as a result of the technology. In the discussion, we identify lessons learned, especially in the area of self-regulation, and make recommendations on how to harness the power of this multi-faceted learning tool and minimize the chaos it can create when not utilized deliberately and carefully.

Better one or two? A systematic review of portable automated refractors

Introduction More than 400 million people suffer from visual impairment globally, with more than half due to uncorrected refractive error. Autorefraction (AR) is the most common examination performed prior to prescribing glasses. As technology advances, so has the accuracy and number of portable autorefractors available. Portable technology has become acutely important with the coronavirus disease 2019 pandemic and the conversion of in-person clinical evaluations to remote telemedicine encounters. Patients and providers want to do as much as possible remotely. The aim of this study was to conduct a systematic literature review of the accuracy and effectiveness of available portable automated refractors compared to the current standard of care, subjective refraction (SR). Methods A literature search of PubMED, Embase and ClinicalTrials.gov 97 unique publications in English on portable autorefractors. Twelve studies comparing a portable AR device to at least one form of SR were systematically included in this review. Results There were four portable autorefractors (Netra, Quicksee, Retinomax and SVOne) studied against SR. There was high patient acceptance of glasses prescriptions by the Quicksee alone, with 87% subjects seeing the same or better than SR. Quicksee was more accurate than Netra and Retinomax. SVOne was preferred over Netra and outperformed Retinomax in multiple measures, despite Retinomax being the fastest test. Discussion There are numerous portable autorefractors available, but few were compared against SR. Quicksee and SVOne are the most accurate and patient-preferred devices. Quicksee was the most accurate, and it performed clinically the same as SR in some reports.

SISTEM AUGMENTED REALITY (AR) DALAM DAKWAH ISLAM

The Use Of Mobile Technology In The Industrial 4.0 Era Is A Must. The Number Of Smartphone Users Continues To Increase Over Time. Contiinum Reality Technology Which Consists Of Both Virtual Reality (VR) And Augmented Reality (AR) Becomes A Portable Technology That Is Easy And Affordable Being Used With A Smartphone. This Study Has An Objective To Determine The Potential Uses Of Augmented Reality (AR) Technology In Modern Islamic Da'wa. This Study Are Counted As A Literature Study Using The Traditional Review Method.AR Applications Have Been Used In Many Fields, Such As Medical, Military, Manufacturing, Visualization, Entertainment And Games, Robotics, Education, Marketing, Navigation, Tourism, Geospatial, Urban Planning And Civil Sciences. Da’wa Requires Attention In Both Truth And Good Ability Of The Preachers. It’s Based On Legal Aspects And The Procedures (Fiqhud-Dakwah). There Was Limited Amount Of Research And AR Products Used In Da'wa. The AR’s Technology That Can Be Applied In Islamic Da'wa Are 1) Playing Cards For Da’wa, 2) Islamic Story Books, 3) Da’wa Brochures / Leaflets / Poster, 4) Islamic History Museum.

Immersive Safe Oceans Technology: Developing Virtual Onboard Training Episodes for Maritime Safety

This paper introduces four safety training episodes and virtual training technology called Immersive Safe Oceans which can be used in further education of professionals in immersive training scenarios. These episodes were developed for maritime safety and are under testing. Immersive Safe Oceans Technology is a cost-effective, portable technology that can be used on board just in time or in maritime training centers. Four introduced episodes, namely, (1) command bridge, (2) machine room, (3) crane, and (4) fire safety, illustrate how Immersive Safe Oceans technology can be used in various professional training scenarios. These episodes also emphasize the growing need for virtual reality training in the shipping industry. As a result, next generation learning will happen onboard in sophisticated virtual training centers.

Laboratory and on ice tests to evaluate kinematics of Para ice hockey players

Sprint and technique abilities of Para ice hockey players are of great importance to increase skating performance. To assess skating abilities, kinematics is widely used. This study had two purposes: (1) to assess two-dimensional kinematics of Para ice hockey players’ performance in the laboratory and on ice (sprint and agility) tests and (2) to quantify the relationship between the laboratory and on ice performance. Seven athletes were recruited. In the laboratory, three alternated reach tests were performed in which athletes touched the ground as many times as possible with hands, elbows, or shoulders. The sprint test consisted of 30-m skating at the highest speed starting from standstill, whereas the agility test consisted of sprinting for four left curves and four right curves. Athletes’ movements in the laboratory and on ice tests were acquired using a portable technology. In the laboratory, the best performance was realized when participants touched the ground with hand or elbow. In the sprint test, lower speed and trunk inclination were observed in the first 10 m. In the agility test, greater blade angle was observed in the left curves, compared with the right curves. Significant correlations were found between the laboratory and on ice test performance. Overall, these findings are a useful indicator of athletes’ skating abilities and could be used to increase athletes’ ability to accelerate rapidly and improve sledge manoeuvrability. For detailed player information, kinematics should still be evaluated using sport specific tests and video analysis.

Partnering With Parents

Contributing to a decade of national research on device ownership and app usage, this study provides evidence of how children from 120 homes across 46 classrooms use apps and portable technology to support their reading development. Parent survey data reveals 99% of children use technology to support reading in the home, primarily on iPad and laptop devices. Apps used most frequently include Istation, YouTube, and PBS Kids Video. To gather parent perceptions and depth of children's technology use, 13 individual interviews were conducted with parents from the same sample. Parents preferred their child read with print books, yet parents allowed their child to use portable technology, in response to their child's interest in technology and general pressure to keep pace with technology skill demands. The finding that nearly all children in this study supported reading skills with portable technology in the home demonstrates the need to foster partnerships between parents and teachers that builds on children's technological knowledge and use to deepen learning between home and school.