Android Function Generator

The paper focuses on an application that can be developed on android, Android is a multipurpose operating system based on Linux for mobile devices such as smartphones and tablet computers, it contains several versions such as donot, ice-cream sandwich, KitKat, pie, etc. Function generator is a device used to generate a wide range of standardized electrical pulses such as sine wave, square wave and sawtooth wave whose frequency ranges from 0.1Hz to 11,000 Hz .In this paper we aim to review how this function generator can be developed using an android mobile application. The mobile phone application uses android in order to implement a function generator which generates different A.C sources available in the laboratory. This can be used extensively in remote areas where it is not easy to carry the function generator. Keyword: Function Generator, Android, CRO, Signals

Challenges in the teaching of Cartography during the COVID-19 pandemic: use of Minecraft in the remote classroom setting

The multi-tasking and technological phenomena of modern society form the basis for so-called active methodology options, which engage students through several different teaching strategies. Among these strategies is game-based learning, very appealing to the younger generation of students and with great didactic potential in the teaching of Cartography and Geography. With the increase in versions of games available on different platforms, their lower cost and the introduction of devices such as mobile telephones, smartphones, tablet computers and desk top computers into the school environment, it has been possible to introduce a sandbox-type game in the didactic approach to the teaching of Geography, which includes cartography content. The purpose of this article is to demonstrate the potential of a methodology based on use of the digital game Minecraft for the learning of cartographic concepts related to geographical themes in primary education during the period of social isolation, in which schools remained closed in Brazil, due to the advancing COVID-19 pandemic. This didactic concept was applied to 178 students at a private school in the city of Ribeirão Preto/SP [São Paulo] in the context of remote learning, between the months of October and November 2020. The outcomes were assessed based on the students’ comprehension of the different viewpoints and the function and importance of scale in representations they created using Minecraft. The study demonstrated that, by “constructing” their representations, students could become the protagonists of their own learning process, connecting theoretical concepts to everyday practice and, thus, giving meaning to what they were being taught.

SmartCards as Analogous Tools to Operate Tablet Computers for Elderly—A Feasibility Study

Background: Older adults sometimes shy away from using modern digital communication devices due to lacking experience and fear of failure. Within the present project, SmartCards were developed as analogous means to operate tablet computers for older adults with little previous computer experience. We investigated whether the SmartCards-Tablet-System would (a) increase use of digital communication and (b) affect loneliness, autonomy, cognitive ability and wellbeing of the users. Methods: The suitability and acceptance of the system was evaluated during a three month trial period with seniors in retirement homes, seniors with home assistance care and a waiting control group. Results: Acceptance, duration of use and frequency of use were high in both experimental groups. Cognitive ability significantly improved after three months’ use in both experimental groups. Effects on loneliness, autonomy and wellbeing could not be observed. Discussion: Our results indicate that seniors are very much able and curious to use modern digital devices if the interface and hardware are adjusted to their needs and capabilities without being stigmatizing. The use of modern communication services and the World Wide Web can promote contact of seniors with their (younger) relatives.

Contesting digital leisure time: Parental struggles in relation to young children's play with tablets at home

Young children's practices with tablet computers has been a topic in parenting discourses for several years, drawing on earlier debates over technologies and media in children's lives. In this article, I analyse data from a video observation–based media ethnography of seven Danish children (aged 4–6) and engage with the research tradition attributed to parental mediation. The analysis suggests two major paths in the struggles that stand out from the discourses and in situ practices of parents and children in the empirical data. These paths encompass struggles in relation to supporting and directing children's play activities and setting boundaries in their use of tablets and content. The nuances and implications of both paths are analysed and discussed in terms of strategies that emerge to support children's agency and rapport with parents, as well as what this means for future research.

extent of tablet computer use in New Zealand's early childhood education services

In 2017, New Zealand’s revised curriculum for early childhood education, Te Whāriki, expanded reference to the use of technology for teaching and learning to include digital media and related devices. This article reports findings from a doctoral study about tablet computer use among New Zealand’s four major early childhood service types: education and care centres, home-based services, kindergartens, and playcentres. Data were gathered in 2017, initially through a national survey, followed by a collective case study. Seven services participated in the collective case study which was designed to explain the results of the survey. Descriptive statistics and inferential statistics were used to analyse survey data while cross-case analysis was used to identify themes from the responses from each service in the collective case study. The results are presented according to two categories of respondents, services who classified themselves as non-users and services who were using tablet computers for teaching and learning at the time of the survey. The national survey results revealed that more than half of the services did not use tablets. Non-users’ reasons for not using tablet computers are discussed considering findings from both quantitative and qualitative phases of the study. Services who used tablets did so for a variety of reasons, including for documentation and assessment, to support children’s learning and teaching work. Qualitative data regarding policies or guidelines for staff about the use of and access to digital media, teachers’ and educators’ learning for how to use touchscreen tablets for teaching and learning, as well as services’ preferences on the facilitation of children’s tablet use are also presented. An important issue uncovered in this study was the use of personal tablets within ECE services. Among non-users, teachers and educators from more than half of home-based services and playcentres used their personally owned tablet computers, raising concerns about cybersafety and screen time. Many user services did not have formal guidelines or policies regarding tablet use. The data suggest that some services relied on the use of teachers’ and educators’ personally owned tablets. Implications arising from the findings of this study are explored, including the relevance of using digital technology for supporting distance learning and learning at home as a result of the global Covid-19 pandemic.

A CROSS-CURRICULAR APPROACH TO SPORT AND MATHEMATICS BY MEANS OF ICT

Students are usually more motivated to work in a sport class than in a math class. This research combined both subjects into one class. A combined class with a cross-curricular approach was introduced in the 6th year of primary school. Three teachers, who teach sport and math in the 6th grade, jointly planned a lesson for refreshing the students' knowledge of basic geometrical concepts. To raise students' motivation for work, tablet computers were used in the class, and the Geogebra, Actionbound and Socrative applications. In the combined class, students had to use their bodies to illustrate different geometric notions. A symbol was chosen, and the students had to use sporting equipment to, by means of a relay, act out this symbol using their interrelationships. They had to pay attention to all the little details which are also important when drawing in a notebook. It was anticipated that recognizing geometric notions after that lesson would be at a higher level than before. The Socrative application was used at the end of the lesson to get a feedback on better understanding of the subject and to identify the positive effects of the cross-curricular approach. Keywords: cross-curricular approach, ICT, primary school, useful knowledge

PvCT: A Publicly Verifiable Contact Tracing Algorithm in Cloud Computing

Contact tracing is a critical tool in containing epidemics such as COVID-19. Researchers have carried out a lot of work on contact tracing. However, almost all of the existing works assume that their clients and authorities have large storage space and powerful computation capability and clients can implement contact tracing on their own mobile devices such as mobile phones, tablet computers, and wearable computers. With the widespread outbreaks of the epidemics, these approaches are of less robustness to a larger scale of datasets when it comes to resource-constrained clients. To address this limitation, we propose a publicly verifiable contact tracing algorithm in cloud computing (PvCT), which utilizes cloud services to provide storage and computation capability in contact tracing. To guarantee the integrity and accuracy of contact tracing results, PvCT applies a novel set accumulator-based authentication data structure whose computation is outsourced, and the client can check whether returned results are valid. Furthermore, we provide rigorous security proof of our algorithm based on the q -Strong Bilinear Diffie–Hellman assumption. Detailed experimental evaluation is also conducted on three real-world datasets. The results show that our algorithm is feasible within milliseconds of client CPU time and can significantly reduce the storage overhead from the size of datasets to a constant 128 bytes.

Analysis and Diagnosis of Truck Transport Routes in Underground Mines Using Transport Time Data Collected through Bluetooth Beacons and Tablet Computers

In this study, we developed a system to collect and analyze log data related to truck travel times in underground mines using Bluetooth beacons and tablet computers. When a signal from beacons installed at a major underground mine is received by a truck-mounted tablet computer, the beacon information is collected and uploaded to a cloud server. A data processing program integrates the uploaded log data files into a single file, calculating the statistical values for each section of the transport route. The developed system was applied to a limestone underground mine located in Jeongseon, Korea, to diagnose and analyze the transport routes in the study area. As a result of this analysis, it was possible to select sections in which the truck transport time was stable and sections in which it was unstable. Consequently, the transport route could be classified into four types based on the distribution and fluctuations in the truck transport time data. Moreover, it was possible to analyze the causes of the stable and unstable sections through production logs and field staff interviews. The developed system could be used as a tool to improve transport operations by diagnosing and analyzing the truck transport routes of a mine.

Effective Adoption of Tablets for Psychodiagnostic Assessments in Rural Burundi: Evidence for the Usability and Validity of Mobile Technology in the Example of Differentiating Symptom Profiles in AMISOM Soldiers 1 Year After Deployment

Research on the use of mobile technology in health sciences has identified several advantages of so-called mHealth (mobile health) applications. Tablet-supported clinical assessments are becoming more and more prominent in clinical applications, even in low-income countries. The present study used tablet computers for assessments of clinical symptom profiles in a sample of Burundian AMISOM soldiers (i.e., African Union Mission to Somalia; a mission approved by the UN). The study aimed to demonstrate the feasibility of mHealth-supported assessments in field research in Burundi. The study was conducted in a resource-poor setting, in which tablet computers are predestined to gather data in an efficient and reliable manner. The overall goal was to prove the validity of the obtained data as well as the feasibility of the chosen study setting. Four hundred sixty-three soldiers of the AMISOM forces were investigated after return from a 1-year military mission in Somalia. Symptoms of posttraumatic stress disorder (PTSD) and depression were assessed. The used data-driven approach based on a latent profile analysis revealed the following four distinct groups, which are based on the soldiers' PTSD and depression symptom profiles: Class 1: moderate PTSD, Class 2: moderate depression, Class 3: low overall symptoms, and Class 4: high overall symptoms. Overall, the four identified classes of soldiers differed significantly in their PTSD and depression scores. The study clearly demonstrates that tablet-supported assessments can provide a useful application of mobile technology in large-scale studies, especially in resource-poor settings. Based on the data collected for the study at hand, it was possible to differentiate different sub-groups of soldiers with distinct symptom profiles, proving the statistical validity of the gathered data. Finally, advantages and challenges for the application of mobile technology in a resource-poor setting are outlined and discussed.

Looking Deeper: Using the Mobile Microscope to Support Young Children’s Scientific Inquiries

This study adopted a quasi-experimental design with the support of qualitative information to investigate the impact of the mobile microscope on students’ science learning outcomes in a laboratory setting. The duration of the educational experiment was 5 weeks. Research participants comprised 56 third graders from two different classes at a public elementary school in Taiwan. Two classes with an equal number of students formed the experimental and control groups. Students in the experimental group employed mobile microscopes to support their scientific inquiries, whereas students in the control group used only tablet computers to facilitate their science learning. A standardized test was developed to measure students’ basic understanding of botany. Additionally, semi-structured concept mapping was employed as an alternative non-standardized test to evaluate students’ natural science learning. The quantitative findings indicated a significant instructional effect in the students’ concept mapping but not in the standardized test. The qualitative results revealed that mobile microscopes might motivate students to actively engage in knowledge discussion and sharing during plant observation.