Recently Web-based/online psychological studies have been reported, in which web browsers familiarized by participants such as

新型コロナウイルスの影響で全国の科学イベントが制限されたりオンライン開催になるなどしている．日本コンピュータ化学会の公開イベント等も影響を受けていることを紹介し，計算科学の役割を知ってもらう上でも，オンラインコンテンツの公開やソーシャルメディア活用による連携の必要性を述べる．

To evaluate the feasibility of an online practice web application and groupware platforms for medical related fields, a small web application for psychophysical experiments was developed using Hypertext Markup Language version 5 features. The application was then used in a certified orthoptics class on the Microsoft Teams 365 meeting platform for two years. The two classes in each year were divided into small groups of either twelve or six students, which were then given areal matching tasks. The students were instructed to adjust the size of the comparison stimuli by moving a web application slider to make the area equal to the standard stimuli, after which they plotted the data on a Google Spreadsheet. After each practice, questionnaires were completed by the students using Google Forms. Over the two years, 85 students completed the questionnaires. While the students managed to achieve the practice goals, they negatively scored the user friendliness of the spreadsheet, especially when there were smaller group sizes. These results suggested that it was not the web application itself but the communication tools employed in the online practice and the group sizes that had affected the student experiences.

In education on medical- or medical-related disciplines, effective student practice is acutely important. A computer-aided practice is a possible solution for effective student practice. However, installing laboratory-made applications is troublesome and even can cause security faults. Therefore, other convenient and secure methods are preferable. HTML5, the latest web standard, includes a canvas element that can be programmed in JavaScript language for two-dimensional dynamic drawings. Most modern web browsers, which are installed on computers and mobile devices, support this standard. Utilizing this feature, the study ported the Hodgkin and Huxley membrane model simulators for personal computers or Android devices into HTML5 capable devices and tested it in a student practice and evaluated the students' acceptance for the practice. The HTML5-based simulator readily run on the preliminary testing environments and students' devices (mainly iPhones or iPads) in actual practice. However, increased student involvement through additional interactivity of the application may be required for a better understanding of the topic.

In the field of education engineering, the importance of learning videos is spreading more and more. Because we can deliver digital educational contents through the Internet, user can watch videos without being tied to their places. Therefore, user can watch videos on demand and they can learn from the videos at any time. On the other hand, it is not able to judge whether user are really watching videos. Thus, we developed an analysis tool for user's video watching behavior. The behavior analysis tool can record 5 statuses as "play", "pause", "ended", "fast-forward" and "rewind". It would be able to analyze detail behavior of users whether they are proper or not. We carried out performance test of our developed system using a 720p video and also checked correctness of the log-visualizing function of the system. We expect that these behavior analysis data will be useful when we make more new videos of any lessons.

Modern Web services provide advanced features by utilizing hardware resources on the user's device. Web browsers implement a user consent-based permission model to protect user privacy. In this study, we developed P_ERMIUM, a web browser analysis framework that automatically analyzes the behavior of permission mechanisms implemented by various browsers. We systematically studied the behavior of permission mechanisms for 22 major browser implementations running on five different operating systems. We found fragmented implementations. Implementations between browsers running on different operating systems are not always identical. We determined that implementation inconsistencies could lead to privacy risks. We identified gaps between browser permission implementations and user perceptions from the user study corresponding to the analyses using P_ERMIUM. Based on the implementation inconsistencies, we developed two proof-of-concept attacks and evaluated their feasibility. The first attack uses permission information to secretly track the user. The second attack aims to create a situation in which the user cannot correctly determine the origin of the permission request and the user mistakenly grants permission. Finally, we clarify the technical issues that must be standardized in privacy mechanisms and provide recommendations to OS/browser vendors to mitigate the threats identified in this study.

本研究では，オンライン講義において，学生の感情が可視化され教師に共有された時に，教師のパフォーマンスと教師の自己効力感が受ける影響を明らかにすることを目的とした．本研究では，被験者が互いの顔が見えないオンライン模擬講義上で実験をおこなった．模擬講義中に教師に学生の感情が可視化される可視化有り条件と，可視化されない可視化無し条件の2つの条件を設けた．模擬講義後に学生役には教師のパフォーマンスについて，教師役には教師の自己効力感について，それぞれ評価してもらった．実験で得られた結果から可視化有り条件の方が可視化無し条件よりも教師の自己効力感が高い有意傾向がみられた．特に，教師の自己効力感の下位尺度である指導戦略への効力感は，可視化有り条件の方が可視化無し条件よりも有意に高かった．また可視化の有無と教授内容との有意な交互作用も見出され, 教師が教えることに困難を感じる内容ほど学生の感情の可視化が有効であることが示唆された．本研究の結果は，オンライン講義における教師の自己効力感の向上に貢献するだけでなく，オンライン講義システムの設計開発に示唆を与えることが期待できる．

lab.js Builderは無料のオープンソースソフトウェアで，オンラインとラボ内の両方のデータ収集の実験と調査を簡単に構築できる．視覚的インターフェースを使用することで，プログラミングなしで刺激を設計して実験や調査に統合でき，また，HTML, CSS, JavaScriptコードを使用してカスタマイズすることもできる．このソフトウェアは，多くの学生や科学者が自宅学習や在宅勤務をする必要がある状況下で，実験や調査を作成して実行するのに役立つと考えられる．本論文では，lab.js Builderの機能と使いやすさを紹介し，大学の授業で実践的な実験を構築・実施する方法を実演し，研究方法教育におけるツールの位置付けについて述べる．

令和２年度より小学校段階においてプログラミング教育が必修化された．音楽科においても，音楽づくり活動をプログラミングの学習に関連させた実践事例が複数見られる．本研究では，音楽づくり活動のひとつとして，コンピュータへの命令をリアルタイムで操作しながら音楽表現を行う〈ライブ・コーディング〉の活動を設定し，その実施のためのWeb アプリケーションを開発した．本稿では，まず，開発の背景となった問題意識を示し，開発の方針を整理した．次に，開発したアプリケーションの概要を述べた．続いて，筆者自身による授業実践を通して，同アプリケーションが，児童の〈ティンカリング〉を促すための適切な操作性を備えていること，児童から多様な音楽性を引き出すことができたこと，「音楽を特徴付けている要素」の理解を促すことができたことを，それぞれ検証した．

In Japan, data analysis has become an important part of the ‘Informatics’ subject in high schools. Data analysis is also becoming increasingly important at universities due to the promotion of ‘Mathematical, Data Science, and AI Education Programs’ and other programs. Students learn how to manipulate statistical processing and graph drawing using the computer. We therefore developed a system called ‘Connect DB’ that has an easy-to-learn operation system and supports learning data analysis. This system supports learners in learning data analysis, such as collecting, organizing, and formatting data, by enabling them to analyze data with just a few mouse operations and by suggesting appropriate analysis methods based on the type of data. In addition, the system also provides sample data that can be used in classes to support teachers. This paper describes the design and implementation of the Connect DB data analysis learning system. By comparing the number of operations with spreadsheet software and analyzing the post-training questionnaire for university students and their operation logs, we confirmed that this system is easy to learn and that it can be used for practical training in data analysis.

This paper reports an educational tool and its evaluation in order for learners to study Computer Architecture, especially in the higher education of Science and Technology field. This tool, which is called Visual CPU Simulator, can provide graphical simulation of assembly program code (instead of machine language) and demonstration of Register-transfer-level micro-operations inside of CPU, namely precise detail of structure and behavior of inner CPU. This educational tool for CPU simulation has been designed and implemented in Javascript language as Web service. Its users select simulation modes by micro step, by machine cycle and by automatic repetition of such cycles. So they can learn how a computer works graphically, recognize inner structure of CPU easily and understand micro-operation based behavior of CPU effectively. This Simulator has been also evaluated through some kinds of questionnaires by learners in many classroom lectures. It is significantly confirmed that the simulator has been very useful and effective to learn Computer Architecture and organization/performance of CPU through its simulating facilities.

While websites are becoming more and more complex daily, the difficulty of managing them is also increasing. It is important to conduct regular maintenance against these complex websites to strengthen their security and improve their cyber resilience. However, misconfigurations and vulnerabilities are still being discovered on some pages of websites and cyberattacks against them are never-ending. In this paper, we take the novel approach of applying the concept of security governance to websites; and, as part of this, measuring the consistency of software settings and versions used on these websites. More precisely, we analyze multiple web pages with the same domain name and identify differences in the security settings of HTTP headers and versions of software among them. After analyzing over 8,000 websites of popular global organizations, our measurement results show that over half of the tested websites exhibit differences. For example, we found websites running on a web server whose version changes depending on access and using a JavaScript library with different versions across over half of the tested pages. We identify the cause of such governance failures and propose improvement plans.