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Smart eyewear, such as augmented or virtual reality headset, allows the projection of virtual content through a display worn on the user’s head. This paper aims to present a mobile platform, named “CARTON”, which transforms a smartphone into smart eyewear, following a do-it-yourself (DIY) approach. This platform is composed of three main components: a blueprint to build the hardware prototype with very simple materials and regular tools; a software development kit (SDK) to help with the development of new applications (e.g. augmented reality app); and, finally, a second SDK (ControlWear) to interact with mobile applications through a Smartwatch.

User experiments were conducted, in which participants were asked to create, by themselves, the CARTON’s hardware part and perform usability tests with their own creation. A second round of experimentation was conducted to evaluate three different interaction modalities.

Qualitative user feedback and quantitative results prove that CARTON is functional and feasible to anyone, without specific skills. The results also showed that ControlWear had the most positive results, compared with the other interaction modalities, and that user interaction preference would vary depending on the task.

The authors describe a novel way to create a smart eyewear available for a wide audience around the world. By providing everything open-source and open-hardware, they intend to solve the reachability of technologies related to smart eyewear and aim to accelerate research around it.

Keeping track of users' communication activities in web‐based environments has always been considered a complex task. It requires tracking systems that are capable of efficiently tracking users' activities and producing tracking data that can be useful to various users. The objectives of this paper are two‐fold: to present an approach for better observing the different levels of human and computer interactions (HCI) during a computer‐mediated communication (CMC) activity; and to present the technical aspects of a web‐based tracking system for communication tools such as discussion forums.

The research applications are applied to educational settings. Three cases of experiments with result analysis will also be presented. The paper studied different CMC tools. With the participation of researchers from different disciplines, including HCI and e‐learning specialists, we adopted the 5W1H method (When, Where, Who, What, Why, and How) and a participative method to build the approach. The result of the experiments and users' feedback allowed us to evaluate the approach.

An approach for efficiently tracking users' communication activities on CMC tools, by looking very closely at the different levels of HCI is shown. This paper demonstrates how useful it is to have tracking data with finer granularity and to provide significant data indicators to the participants in the learning process.

The data indicators shown in this paper are computed based on the real needs of the participants in the learning process. The proposed approach can be implemented with any conceptual and development languages.

One of the particularities of this research is the approach for efficiently tracking CMC activities on both client and server sides. The quality of the tracking data from the three experiments shows the effectiveness of the system. Another contribution of this paper is a discussion of the important key issues related to the tracking data in learning environments.

This paper presents a part of our research work that places an emphasis on Tracking Data Analysis and Visualization (TrAVis) tools, a web‐based system, designed to enhance online tutoring and learning activities, supported by computer‐mediated communication (CMC) tools. TrAVis is particularly dedicated to assist both tutors and students in the task of exploiting tracking data of communication activities throughout the learning process. This paper focuses on the technical aspects of TrAVis, the visualization of students' tracking data and the experiment we have conducted in an authentic learning situation.

A mixture of iterative and participative approaches has been adopted for the design of TrAVis. Different versions of TrAVis were built during the progress of our research. The major changes in each build have particularly involved the conceptual design of data indicators of students' activities and the visualization techniques of the data indicators. Both case studies and experiments have been made to evaluate TrAVis.

This paper demonstrates how TrAVis provides a new experience in visualizing and analyzing students' tracking data. While it shows the originality and novelty of the system, it also reveals the potential benefits of TrAVis to both tutors and students in their online tutoring and learning activities.

The result from the experiment is not sufficient to evaluate some specific aspects of TrAVis. As a matter of fact, the lack of user's feedback did not enable us to justify whether or not the proposed data indicators would be actually used by the users.

The data indicators shown in this paper are computed based on the real needs of the participants in the learning process. Online questionnaires were used and face‐to‐face interviews have been made to study the needs of the users throughout this research work.

One of the particularities of this research is the proposed system, TrAVis, objectively designed to better support the tutors in the tasks of monitoring and evaluating students on CMC tools. Plus, TrAVis is distinguished from the existing systems by its capacity in computing substantial data indicators, allowing the tutors to efficiently visualize and analyze both the process and the product of students' activities.

This policy brief discusses validity and fairness issues that could arise when test-based information is used for making “high stakes” decisions at an individual level, such as, for the certification of teachers or other professionals, or when admitting students into higher education programs and colleges, or for making immigration-related decisions for prospective immigrants. To assist test developers, affiliated researchers and test users enhance levels of validity and fairness with these particular types of test score interpretations and uses, this policy brief summarizes an “argument-based approach” to validation given by Kane.

This policy brief is based on a synthesis of conference proceedings and review of selected pieces of extant literature. To that synthesis, the authors add practitioner-friendly examples with their own analysis of key issues. They conclude by offering recommendations for test developers and test users.

The authors conclude that validity is a complex and evolving construct, especially when considering issues of fairness in individual testing contexts. Kane's argument-based approach offers an accessible framework through which test makers can accumulate evidence to evaluate inferences and arguments related to decisions to be made with test scores. Perspectives of test makers, researchers, test takers and decision-makers must all be incorporated into constructing coherent “validity arguments” to guide the test development and validation processes.

Standardized test use for individual-level decisions is gradually spreading to various regions of the world, but understandings of validity are still uneven among key stakeholders of such testing programs. By translating complex information on test validation, validity and fairness issues with all concerned stakeholders in mind, this policy brief attempts to address the communication gaps noted to exist among these groups by Kane.

The aim of this study is to examine whether China’s exchange rate follows an equilibrium process and consequently to answer the question of whether or not China’s international competitiveness fluctuates in consistency with equilibrium.

The theoretical background of the paper relies on the Purchasing Power Parity (PPP) hypothesis, while the econometric methodology is mainly based on a nonlinear two-regime Threshold Autoregressive (TAR) unit root test.

The main finding is that China’s price competitiveness was not constantly following a disequilibrium process. The two-regime threshold model shows that PPP equilibrium was confirmed in periods of relatively high – compared to the estimated threshold – rate of real yuan appreciation. Moreover, it is implied that the fixed exchange rate regime cannot ensure external balance since it can neither establish equilibrium in the foreign exchange market, nor confirm that China’s international competitiveness adjustment follows an equilibrium process.

The results do not imply that China acts as a currency manipulator. However, a main policy implication of the paper is that China should continue appreciating the yuan to establish external balance.

This paper is the first which accounts for a nonlinear two-regime process toward a threshold, which is defined to be the rate of change in China’s international competitiveness. Consequently, the paper draws attention to the role of China’s international competiveness in accepting the PPP hypothesis.

The purpose of this paper is to study, a bridged-T topology with inductorless passive network used as a bandpass (BP) negative group delay (NGD) function.

The BP NGD topology under study is composed of an inductorless passive resistive capacitive network. The circuit analysis is elaborated from the equivalent impedance matrix. Then, the analytical model of the C-shunt bridged-T topology voltage transfer function is established. The BP NGD analysis of the considered topology is developed in function of the bridged-T parameters. The NGD properties and characterizations of the proposed topology are analytically expressed. Moreover, the relevance of the BP NGD theory is verified with the design and fabrication of surface mounted device components-based proof-of-concept (PoC).

From measurement results, the BP NGD network with −151 ns at the center frequency of 1 MHz over −6.6 dB attenuation is in very good agreement with the C-shunt bridged-T PoC.

This paper develops a mathematical modeling theory and measurement of a C-shunt bridged-T network circuit.

As a subject of academic study and research, the History of Science is something very new. As in many other matters of this kind, the pioneer was the University of London, where in University College a department was instituted in 1924—a postgraduate department in which graduates in science in the University of London, or those who hold an equivalent qualification from another university, may proceed to the degree of M.Sc. in the History and Philosophy of Science by means of an examination, Part I of which consists of four written papers (three in the History and one in the Philosophy of Science), while Part II demands the preparation of a dissertation on some approved topic, a dissertation necessitating close study of original material and being essentially a first research. Those who obtain the degree of M.Sc. in this subject may proceed to the degree of Ph.D. by further research: and the D.Sc. degree is awarded for extensive original publications and contributions to the subject. Here, therefore, at University College, the history of science and the philosophy of science are studied in the usual academic framework of higher learning and research. Further, it is the only department of its kind, so far as is known, in any university in the world.

This paper aims to clarify the persuasion mechanism of chief executive officers (CEOs) and employees as endorsers of brand advertising and helps discern consumer attitudes toward internal endorsement.

The exploratory character of the present research required a qualitative approach combining focus groups and face-to-face interviews considered as both meaningful and complementary.

The findings suggest that while the celebrity endorsement ensures familiarity and likability, internal endorsement supports credibility and congruity with an important role of storytelling. Moreover, employee endorsements induce an internalization process based on the real-self, while the endorser CEO induces admiration grounded in the ideal self. More fundamentally, the study reveals how the internal endorsement modifies the meaning transfer model and involves a process of meaning translation, which affects the corporate brand image rather than the product brand image.

The present paper reveals that CEOs and employees can be strong levers for gilding the corporate brand image compared to the celebrities who enhance the product brand image. Moreover, the authors show that the CEO is a character who can be admired without the threat of upward comparison at the opposite of celebrities. Finally, this research highlights the specific role of employees bringing authenticity because of their anchorage in real life.