Journal articles on the topic 'Mobile mower'

Utilization of conventional energy sources such as coal, fuel oil, natural gas and others on the one hand has a low operating cost, but on the other side of the barriers is the greater source of diminishing returns and, more importantly, the emergence of environmental pollution problems dangerous to human life. This study aims to formulate the kinematics and dynamics to determine the movement of Solar Power Mower. In this study, using solar power as an energy source to charge the battery which then runs the robot. Design and research was conducted in the Department of Mechanical Workshop Faculty of Engineering, University of Hasanuddin of Gowa. Control system used is a manual system using radio wave transmitter and receiver which in turn drive the robot in the direction intended. Experimental results showed that treatment with three variations of the speed of 6.63 m / s, 8.84 m / s and 15.89 m / sec then obtained the best results occur in grass cutting 15.89 sec and high-speed cutting grass 5 cm. Formulation of kinematics and dynamics for lawn mowers, there are 2 control input variables, x and y ̇ ̇ 3 to control the output variables x, y and θ so that there is one variable redudant. Keywords: mobile robots, lawn mower, solar power

This study is about the manufacturing of a personified automatic robotic lawn mower with image recognition. The system structure is that the platform above the crawler tracks is combined with the lawn mower, steering motor, slide rail, and webcam to achieve the purpose of personification. Crawler tracks with a strong grip and good ability to adapt to terrain are selected as a moving vehicle to simulate human feet. In addition, a lawn mower mechanism is designed to simulate the left and right swing of human mowing to promote efficiency and innovation, and then human eyes are replaced by Webcam to identify obstacles. A human-machine interface is added so that through the mobile phone remote operation, users can choose a slow mode, inching mode, and obstacle avoidance mode on the human-machine interface. When the length of both sides of the rectangular area is input to the program, the automatic robotic lawn mower will complete the instruction according to the specified path. The chip of a Digital Signal Processor (DSP) TMS320F2808 is used as the core controller, and Raspberry Pi is used as image recognition and human-machine interface design. This robot can reduce labor costs and improve the efficiency of mowing by remote control. In addition to the use as an automatic mower on farms, this study concept can also be used in the lawn maintenance of golf courses and school playgrounds.

This work describes the educational experiences gained teaching the Senior Design I & II courses, a senior level, two-semester sequence in the Electrical Engineering (EE) program at Georgia Southern University (GSU). In particular, the authors present their experiences in using robotics as the main area to develop the capstone senior design, with focus in interdisciplinary interactions and teamwork for the design and implementation of autonomous mobile robots. Other main purpose of the capstone design course sequence is for the students to experience working in an engineering application project researching and analyzing the sustainability, ethical and social impact issues related to their projects. The students work for two semesters as a team to design, test and build a mobile robot project for a particular application. Some of these projects have been fabricated to participate in different robotic competitions, including the IEEE sponsored hardware competition, the lawn mower competition, and the robot waiter competition.

The output-input ratio of a car wheel depends on power losses induced by tyre deformation. Wheel static, kinematic and dynamic radii depend on the tyre deformation radii and, consequently, predefine the mover output-input ratio. This article proposes a method to asses an instantaneous output-input ratio of a wheeled mover as a ratio between a wheel kinematic radius and dynamic radius on the basis of the analysis of the previously conducted research.

A design policy for autonomous mobile robots favors widely accepted using as many sensors and as much powerful recognition hardware as possible to realize reliable robot operation. If we plan to use developed technology for commercial products, a separate design policy favors a minimum number of sensors and recognition hardware, i.e., the number enough for reliable operation. We named the robot designed under the latter design policy the Minimal Autonomous Mover (MAM) and built a MAM to participate in the Tsukuba Challenge, a competition for among autonomous mobile robots. In this competition, our robot reached the goal and completed the mission as reported in the sections that follow.

<div class=""abs_img""> <img src=""[disp_template_path]/JRM/abst-image/00270005/16.jpg"" width=""300"" /> Personal mobility vehicles</div> We have developed the RT-Mover series of mobile robots because of the strong demand for mobile robot platforms for use on rough terrain. They look like ordinary four-wheel vehicles but are mobile enough to operate on targeted rough terrain encountered in daily life. The advantage of this series is that individual wheels negotiate obstacles with their own leg motion mechanisms. </span>

Background Postdischarge interventions are limited for patients with acute coronary syndrome (ACS) due to few scheduled visits to outpatient clinics and the need to travel from remote areas. Smartphones have become viable lifestyle technology to deliver home-based educational and health interventions. Objective The aim of this study was to develop a smartphone-based intervention for providing postdischarge support to patients with ACS. Methods The content of Mobile Technology–Enabled Rehabilitation for Patients with ACS (MoTER-ACS) was derived from a series of small studies, termed prestudy surveys, conducted in 2017. The prestudy surveys were conducted in Prince Charles Hospital, Queensland, Australia, and consisted of questionnaires among a convenience sample of patients with ACS (n=30), a focus group discussion with health care professionals (n=10), and an online survey among cardiologists (n=15). Responses from the patient survey identified educational topics of MoTER-ACS. The focus group with health care professionals assisted with identifying educational materials, health monitoring, and self-management interventions. Based on the results of the cardiologists’ survey, monitoring of symptoms related to heart failure exacerbation was considered as a weekly diary. Results The MoTER-ACS app covers multimedia educational materials to adopt a healthy lifestyle and includes user-friendly tools to monitor physiological and health parameters such as blood pressure, weight, and pain, assisting patients in self-managing their condition. A web portal that is linked to the data from the smartphone app is available to clinicians to regularly access patients’ data and provide support. Conclusions The MoTER-ACS platform extends the capabilities of previous mobile health platforms by providing a home-based educational and self-management intervention for patients with ACS following discharge from the hospital. The MoTER-ACS intervention narrows the gap between existing hospital-based programs and home-based interventions by complementing the postdischarge program for patients with ACS.

In recent years, technological advances and regulatory change have profoundly modified many Internet-related supply and user services. In some cases, although entry barriers for new competitors have been lowered, established companies have been able to reap certain sources of first-mover advantages (FMAs) as a result of their early entry into the market. Here, non-market strategies can be used by rivals and other industry participants to neutralize FMAs. This paper has two main objectives: on the one hand, to reflect on FMAs in an Internet-enabled market environment, specifically, mobile service providers; on the other hand, to study the impact of litigation on first-mover performance in the Spanish mobile services industry between November 2000 and July 2006. The results obtained show that litigation processes initiated against first mover Movistar, do not, on average, have a negative impact on market performance. Similarly, we observed that when legal proceedings do have an impact on a company’s stock market valuation, the negative impact, on average, outweighs the positive. Last, we also observed that the impact of some legal disputes on the first mover’s share price varies depending on who initiates legal actions and on the nature of the lawsuit filed.

There is a strong demand in many fields for practical robots, such as a porter robot and a personal mobility robot, that can move over rough terrain while carrying a load horizontally. We have developed a robot, called RT-Mover, which shows adequate mobility performance on targeted types of rough terrain. It has four drivable wheels and two leg-like axles but only five active shafts. A strength of this robot is that it realizes both a leg mode and a wheel mode in a simple mechanism. In this paper, the mechanical design concept is discussed. With an emphasis on minimizing the number of drive shafts, a mechanism is designed for a four-wheeled mobile body that is widely used in practical locomotive machinery. Also, strategies for moving on rough terrain are proposed. The kinematics, stability, and control of RT-Mover are also described in detail. Some typical cases of rough terrain for wheel mode and leg mode are selected, and the robot’s ability of locomotion is assessed through simulations and experiments. In each case, the robot is able to move over rough terrain while maintaining the horizontal orientation of its platform.

Previous studies have pointed out the highly gendered character of academia in general and international mobility in particular: women academics are confronted with a ‘glass ceiling’, and they are less geographically mobile than men, mainly as a result of family obligations. This paper examines whether gender plays twice a role in how women and men consider family arrangements in regard to a long-term post-PhD period of transnational mobility. Using data from an online survey and face-to-face interviews at the Universities of Cambridge and Zurich, we focus first on family configurations when academics decide to become mobile, then on how the family arrangements evolve while abroad. We show that the transnational mobility of academics has become more complex and varied than the ‘classical model’ of mobile academic men and non-mobile or ‘tied mover’ women. While having a child continues to impact gender roles, institutional characteristics in the context of mobility also play a role that needs to be further analysed.

Earlier research demonstrated that a pump-controlled hydraulic system combines the best properties of traditional hydraulics and electric intelligence. Thus, the new system has been proposed as a replacement for conventional valve-controlled systems, to improve the energy efficiency in non-road mobile machinery in particular. One of the pump-controlled systems can be realized via direct control of hydraulic pump/motor by varying speed of prime mover. Electric motor (EM) as a prime mover attract with higher efficiency (more than 90%) and a wide range of speed regulation. These advantages allow to improve the system efficiency and decrease the energy consumption in electric and hybrid non-road mobile machinery. Further EM's efficiency improvement can be achieved by using vector control systems, which provide rotor magnetic flux control proportionally to the shaft's speed. Considering all vector control’s benefits (high accuracy of speed control, smooth~start and smooth rotation of the motor in the entire frequency range, quick response to load changes, increased control range and accuracy of regulation), the electro-hydraulic systems and influence of electric part on hydraulic one is not investigated widely. Therefore, in this paper Field Oriented Control (FOC) is analyzed as One of the most perspective vector control systems for electro-hydraulic actuator application with a Permanent Magnet Synchronous Machine (PMSM) as a prime mover. In~this study, Direct-driven hydraulics (DDH) was considered as a study case. A detailed model of the PMSM control system with DDH was built in MATLAB/Simulink. The behavior of the DDH system was investigated by transient processes analysis of EM, pump, and cylinder in the normal and failure modes. The system demonstrates a difference between reference and simulated speed about 0.33% and 11.75% of average torque fluctuations. The behavior of the system in failure mode demonstrated multiple excesses of rated parameters.

Abstract. Roadside ditches serve an important role for draining storm water. Over time vegetation growth, natural sediment deposits, and other debris can change grade of ditches. Effectively monitoring and identifying these changes to prioritize ditch maintenance is important from both a pavement preservation perspective and prevention of localized flooding. This study evaluates the performance of two mobile LiDAR systems for mapping the cross-section of roadside ditches in the presence of vegetation. The geometric quality of data collected by two different wheel-based LiDAR systems were investigated. The mapped ditches were reported and visualized in 2D images as well as 3D point clouds. The cross-sections of man-made drainage ditches were extracted and the quality of mapped ditches was assessed against Real-Time Kinematic Global Navigation Satellite Systems (RTK-GNSS) survey. The overall point cloud accuracy was 4 cm for the medium-grade system, and 1 cm for the high-grade system. The mapping accuracy is 2 cm (medium-grade system) and 1 cm (high-grade system) for solid surface. For rough mowed areas and areas with significant vegetation, the vertical accuracy was found to be 7 cm and 11 cm, respectively, for both wheel-based systems.

Sugarcane core sampler is a plantation equipment sector which collect sugar cane samples and determining of rendemen in sugarcane. Sugarcane core sampler is a new product made by PT. United Tractors Pandu Engineering to solve problem about determining of individual rendemen in sugarcane at sugar mill. In operation Sugarcane Core Sampler uses a hydraulic system as the prime mover, either to raise the platform, take samples of cane and push it out of the probe cylinder. In order for the hydraulic system to work optimally, it is necessary to design and calculate the specification of components to be used on tilting cylinders, ejector, hydraulic pump, and reservoir (hydraulic tank). It also conducted a discussion of the difference between the Core Sampler Sugarcane fixed and mobile models. From the calculation results obtained inside diameter tilting cylinder is Ø100 mm with rod cylinder Ø56 mm, inside diameter of ejector cylinder is Ø32 mm with rod cylinder Ø1 8mm. At the biggest pump flow required is 51.81 lpm and displacement 43 cc/rev, from result of calculation hence specified pump which used is pist on pump type with displacement 41 cc/rev. For hydraulic tank capacity requiredon all hydraulic systems is 177 liters.

Abstrak Penelitian ini bertujuan Mendeskripsikan Perkembangan Pemahaman Siswa pada Operasi Hitung Bilangan Bulat dalam setting Pembelajaran Matematika Realistik berbantuan media “Mobil Bergerak” di kelas IV.Penelitian ini deskriptif kualitatif dan kuantitatif, penelitian yang dilakukan dengan menjelaskan atau menggambarkan variabel masa lalu dan sekarang yang bertujuan untuk membuat deskripsi, gambaran atau lukisan secara sistematis, faktual dan akurat mengenai fakta-fakta serta hubungan antara fenomena yang diselidiki. Hasil dari Tes pertama, tes kedua, dan tes ketiga siswa mengalami peningkatan ditunjukkan dengan nilai tertinggi dari 45 ke 77,5 dan ke 100, Nilai terendah dari 10 ke 25 dan 45, nilai rata-rata dari 19,17 ke 54,06 dan 74,90. Tingkat pemahaman rata-rata kelas dari sangat rendah ke sedang dan tinggi.Hasil perbandingan dari tes pertama, tes kedua, dan tes ketiga menunjukkan perubahan yang lebih baik atau maju dengan begitu dapat disimpulkan siswa mengalami perkembangan pemahannya dalam operasi hitung bilangan bulat melalui setting pembelajaran matematika realistik berbantuan media “MOGER”.Berdasarkan hasil data, dapat disimpulkan siswa mengalami perkembangan pemahaman dalam operasi hitung bilangan bulat dengan menggunakan setting pembelajaran matematika realistik berbantuan media “MOGER” di kelas IV. Kata kunci: Pemahaman Siswa pada Operasi Bilangan Bulat, Pembelajaran MatematikaRealistik, Media “MOGER”. ABSTRACTThis study aims to describe the development of understanding of students on Operation Count Integer in setting medium-aided Realistic Mathematics Education "Moving Cars" in the fourth grade.This research is descriptive qualitative and quantitative research conducted to explain or illustrate the past and present variables which aims to create a description, picture or painting in a systematic, factual and accurate information on the facts and the relationship between the phenomenon investigated. Results of the first test, a second test and third test students have shown improvement with the highest score of 45 to 77.5 and to 100, the lowest value of 10 to 25 and 45, the average value of 19.17 to 54.06 and 74.90. Level of understanding of the average grade from very low to medium and high. The comparison of the first test, a second test and third test showed changes for the better or forward so we can conclude pemahannya students progressing in integer arithmetic operations by setting realistic mathematics-assisted learning media "Moger".Based on the results of the data, it can be concluded the students to experience growth in the understanding of integer arithmetic operations using mathematical learning setting realistic media-assisted "Moger" in the fourth grade. Keywords: Students Understanding on Operations Integer, Realistic Mathematics Education, Media "Moger".

This study tests the impact of corporate venturing (CV) forms on the sustainability of pioneering advantage. Using the Miles and Covin 2002 classification of CV forms, this study shows that performance of early entrants is twice as much higher than performance of lagers. However, the effect of parent support prior to entry is substantially larger than the pioneering effect. Companies entering a market via direct external CV perform twenty five to fifteen times better than companies entering via direct internal CV. Hence, the sustainability of first mover advantage is challenged in the face of new entrants with superior resources.

Purpose The purpose of this paper is to map the relevant studies pertaining to internationalization in the mobile telecommunications (telecom) sector, with the aims of reflecting and categorizing what has already been studied on this topic, as a means of guiding future research. Design/methodology/approach The authors use the systematic literature review methodological approach, adopting the “Antecedents-Phenomenon-Consequences” theoretical framework as a guide. Consistent with this framework, they identify and categorize studies in the academic literature that have discussed the cross-border expansion of mobile telecom firms. Their review is based on 50 research publications, selected based on the relevance of their findings and their underlying arguments. The authors then categorized each piece’s findings and arguments into themes and sub-themes. Findings The authors find evidence that mobile network operators (MNOs) are driven into international markets by a collection of factors that can broadly be categorized as either firm-specific/country factors or the desire to capture first-mover advantages (FMAs). They also find evidence that the Uppsala stages model does not provide an appropriate explanation of MNOs’ internationalization patterns, with firms tending to skip posited stages. Market size, the regulatory environment and government policies appear to be key influences in MNOs’ choices of foreign investment locations, and despite being a driver of internationalization, FMAs often erode with the entry of competitors. MNOs tend to prefer collaborative entries over greenfield investments, especially in countries in which telecommunications infrastructure is already in place. Finally, there is no consensus with respect to whether internationality is positively associated with financial performance for MNOs. Originality/value This review of the literature offers value to both academia and practice, by providing both insights into what has already been studied with respect to the internationalization of mobile telecom firms and a guide for future research.

This study reports on the experience of the First Atlantic Bank of Nigeria as it embarked on the implementation and introduction of Internet and mobile banking services. Based on the concept of a logic of opposition the study conceptualizes the case company's effort with a specific emphasis on the mode and impact of learning that occurred intra- and inter-organizationally. The case considers how being a first mover in a given market can be crucial, not necessarily because of the immediate commercial benefit, but more because of the opportunity for developing customers’ trust in order to ensure the success of future innovations. In addition, the case illustrates the problematic nature of evaluating the success or failure of an innovation. Further, it shows how failure can be an intermediate step to future success, while making the point, counter-intuitively perhaps, that blindly listening to customers may prove to be a barrier to successful innovations. Thus, firms might capitalize from what might initially be perceived as failure, in particular through transforming an opposing force into a promoting one.

This work aims to study the influence of legume-cereal grasses in the inter-row spacings of the garden on the content of nutrients in the soil and the growth of apple tree roots. The amount of nitrate nitrogen was in direct proportion to the ratio of the legume component in the phytocenosis. The nitrogen content in the control option was the smallest: 19.7 mg/kg in the soil layer of 0-30 cm and 13.4 mg/kg in the layer of 30-60 cm. In the case of natural grassing-down between rows, cereal forbs prevailed. The largest amount of nitrate nitrogen was achieved when sowing the red clover and timothy grass in a ratio of 7:3. The accumulation of nitrate nitrogen is due to the activity of nodule bacteria on the roots of red clover. The accumulation of mobile phosphorus and exchangeable potassium depends on the amount of mowed mass in the inter-row spacings of the garden. The lowest content of mobile phosphorus was detected for natural grassing. In the control option, its amount was 118 mg/kg. In the 0-30 cm soil layer, the content of mobile phosphorus was 127.4-142.6 mg/kg depending on the ratio of legume-cereal grasses, and it amounted to 95.1-103.2 mg/kg in the 30-60 cm layer. For the ratio of red clover and timothy grass 3:7, the highest phosphorus content was detected. The intercropping of the garden with a legume-cereal herbal mixture also contributed to a greater accumulation of exchangeable potassium in the soil relative to natural grassing-down - 122.3-134.9 mg/kg. The optimal ratio of legume-cereal component was 3:7. A higher growth activity of the roots of the apple tree was noted in the option with sodding with a mixture of red clover and timothy grass in a ratio of 7:3.

Compression Ignition Diesel Engine use Diesel as conventional fuel. This has proven to be the most economical source of prime mover in medium and heavy duty loads for both stationary and mobile applications. Performance enhancements have been implemented to optimize fuel consumption and increase thermal efficiency as well as lowering exhaust emissions on these engines. Recently dual fueling of Diesel engines has been found one of the means to achieve these goals. Different types of fuels are tried to displace some of the diesel fuel consumption. This study is made to identify the most favorable conditions for dual fuel mode of operation using Diesel as main fuel and Gasoline as a combustion improver. A single cylinder naturally aspirated air cooled 0.4 liter direct injection diesel engine is used. Diesel is injected by the normal fuel injection system, while Gasoline is carbureted with air using a simple single jet carburetor mounted at the air intake. The engine has been operated at constant speed of 3000 rpm and the load was varied. Different Gasoline to air mixture strengths investigated, and diesel injection timing is also varied. The optimum setting of the engine has been defined which increased the thermal efficiency, reduced the NOx % and HC%.

The cross-country capability of multi-purpose wheeled vehicles is one of the most important operational properties of these technical objects. In many ways, it is determined by their traction characteristics. There are a number of ways to improve traction and coupling properties of multipurpose wheeled vehicles, the main ones are the use of various kinds of traction control systems, blocking of interaxle and interwheel differentials, the use of ballast and several others. Recently, one of the ways to improve the traction properties and cross-country ability of vehicles on soils with weak load-bearing capacity is a regulation of air pressure in the tires of the driving wheels of multi-purpose wheeled vehicles. The paper describes the process of interaction of the wheel mover with the ground surface when the air pressure in the tire changes. The influence of air pressure on the traction properties of wheeled vehicles is established. The system of automatic control of air pressure in tires of mobile cars depending on road conditions is offered. The use of the proposed regulation principle will significantly increase the cross-country ability of multi-purpose wheeled vehicles in heavy traffic conditions, eliminating the subjective factor in the person of the vehicle operator.

A novel genetic algorithm (GA) using minimal representation size cluster (MRSC) analysis is designed and implemented for solving multimodal function optimization problems. The problem of multimodal function optimization is framed within a hypothesize-and-test paradigm using minimal representation size (minimal complexity) for species formation and a GA. A multiple-population GA is developed to identify different species. The number of populations, thus the number of different species, is determined by the minimal representation size criterion. Therefore, the proposed algorithm reveals the unknown structure of the multimodal function when a priori knowledge about the function is unknown. The effectiveness of the algorithm is demonstrated on a number of multimodal test functions. The proposed scheme results in a highly parallel algorithm for finding multiple local minima. In this paper, a path-planning algorithm is also developed based on the MRSC-GA algorithm. The algorithm utilizes MRSC_GA for planning paths for mobile robots, piano-mover problems, and N-link manipulators. The MRSC_GA is used for generating multipaths to provide alternative solutions to the path-planning problem. The generation of alternative solutions is especially important for planning paths in dynamic environments. A novel iterative multiresolution path representation is used as a basis for the GA coding. The effectiveness of the algorithm is demonstrated on a number of two-dimensional path-planning problems.

Legal matter passes through five stages in its movement. Each stage needs scientific reflection, elaboration of its constituent rules of application and improvement. Legal matter passes through the respective stages not because it is inherent in the content of the legal norm at the dictate of the legislator, law enforcer or other external force. By its nature, it is endowed with an inherent power, i.e. legal energy. Legal matter is mobile. Movement is a qualitative characteristic of matter, including legal matter. It is provided by the energy, which is usually accumulated in the norm of law. The accumulated legal energy, just like any other energy, can be realized by transforming (turning) one kind into another. We can trace the forms of such transformation. The literature studies four variants of movement of legal matter, which are realized by 'releasing' the accumulated legal energy accumulated in its individual norms or their totality. Therefore, it is possible to study the structure of legal energy using the forms of legal matter realization known to the legal science. Each of them is possible only by releasing the legal energy accumulated in them, a kind of its "mover". Since science has identified four forms of implementation of norms of legal matter, there-fore, it is necessary to talk about four forms of manifestation of legal energy: compliance, enforcement, use, application. This is manifested in detail in the implementation of the norms of any branch of Russian law, including labour law.

Mobile robots with walking propulsion devices operating in a "pulling" mode, which, as a rule, are unstable, are considered. It is explained to the jamming of propulsion device due to the orthogonality of the acting force to the virtual displacement of the point of application. The task is to develop such an algorithm for controlling the robot, which consists in purposefully changing the geometric orientation of the propulsion devices controlled by the swing drive, which will ensure stable motion. A method for controlling the orientation of the walking plane with its initial deviation from the programmed position is proposed, based on the implementation of a discrete control algorithm, which provides for the introduction of such a piecewise constant function at each step of the mover, which has received an initial perturbation, which will provide a stable motion mode in a finite number of steps. The change in the orientation of the walking planes of the propellers connected with the steering is controlled, and thereby the direction of movement of the robot body changes in the first step, as in the subsequent ones. The described algorithm assumes the fulfillment of two necessary conditions: the presence of an information-measuring system that controls the orientation of the walking planes and ensuring that the interaction forces of the feet controlled by the steering of the propulsion devices with the supporting surface are sufficient for the absence of slippage. An algorithm for controlling "dependent" propulsion devices (working out the programmed translational motion of the body) is presented, taking into account the fact that their orientation depends on the orientation of the controlled ones, which consists in changing the step length, which should also be determined to ensure movement stability. The main task of controlling "dependent" propulsion devices, which do not change the orientation of their walking plane at the initial moment of time, is to determine the points for setting the feet by changing the step length, in accordance with the established criteria and design constraints, in particular, energy efficiency, maximum efforts in drives, maximum and minimum stride length. The propulsion device will start to work in a stable "pushing" mode at the final stage of motion correction, by performing a sequence of actions. It has been established that the "pulling" mode of the walking propulsion device can be stable, with appropriate control.

Learning outcomes Using the case, students will learn about the following topics: identification of the right shareholder for a start-up. Need for a tech co-founder for an app-based start-up. Delay in building the right team at the right time. Lack of preparedness; a start-up’s challenges in identifying the business model. What was the real pain point (problem identification)? Did the solution meet market expectations (solution quality)?; consumers’ usual social habits. How do people’s habits hinder a product’s survival in the market? Why do consumers continue to behave the same way they have? Technology-related constraints. Case overview/synopsis KnoDues was a mobile application (app)-based start-up in the domain of split expenses. The business idea germinated in early 2015 and became a reality toward the end of 2015. In a developing country context, the case provides rich insights into lean vs traditional start-up formation, founders’ knowledge, opportunity identification, product development and investment. India is a growing economy with ever-increasing smartphone users and internet consumers. Despite its deep-rooted rural-urban divide in the usage of modern technologies, India possesses a vast market opportunity in big cities. Rightly so, KnoDues intended to target the urban youth (between 15 and 35 years of age) population. Although KnoDues was not a unique product or the first of its kind, the founders perceived it to be the “first mover” in the Indian market. In its initial days, the product received an overwhelming response from accelerators and business-plan judges. Although KnoDues achieved more than 20,000 downloads by the end of 2016, customer retention and attracting investors became a difficult task. Founders felt that the difficulty was because of people’s “usual social habits,” and inadequate revenue model. Toward the end of 2017, KnoDues’s founders contemplated on ceasing their business. Complexity academic level Undergraduate, postgraduate and executive. Supplementary materials Teaching Notes are available for educators only. Please contact your library to gain login details or email support@emeraldinsight.com to request teaching notes. Subject code CSS 3: Entrepreneurship.

From educational gaming through portable e-readers to cell phones, media are interpenetrating educational spaces and activities. Accordingly, understanding media in environmental or ecological terms has become increasingly important for education internationally. In North America, for example, the centenary of McLuhan’s birth has focused attention on approaches to media – whether oral, textual, electronic or digital– as a kind of environment in which education takes place. In parts of Europe, the so-called mediatic turn – following on the linguistic and iconic turns – has similarly emphasized the role of media as a condition for the possibility of educational activities and programs. With a few exceptions1 the papers in this special issue were first presented at the conference «Educational Media Ecologies: International Perspectives» which took place at the University of Paderborn, Germany, on March 27–28, 2012.2 The event was an interdisciplinary and transatlantic endeavor to bring together a wide range of perspectives on various issues relevant to educational media ecologies,3 and on related debates on mediation, medialization, mediatization, and mediality.4 The purpose of this volume, like the conference, is to foster and deepen international dialogue in the area of educational media. Areas of research and scholarship relevant to this dialogue include educational media, media literacy, educational philosophy, and media and cultural studies. The contributions, described below, put conceptual issues as well as social practices and applications at the center of the debate. Klaus Rummler opens the issue by clarifying the concept of ecology itself. Referencing a range of work over the past 50 years, Rummler describes how ecological models have been cast in sociological, semiotic, cultural, mediatic and other terms, and he explains the implications of these various perspectives for the study of educational contexts. Rummler also briefly introduces the reader to the triangular model used by Bachmair, Pachler and Cook in this issue (and in other publications) to analyse the socio-cultural and cognitive possibilities opened up by various mobile media. Sandra Aßmann and Bardo Herzig discuss three theoretical approaches – a network perspective, systems theory and semiotics – in order to conceptualize and analyze learning with media in a range of formal and informal settings. They use the example of «friending» someone via Facebook, a context in which the formal and informal often intersect in unexpected ways. In this way, Aßmann and Herzig demonstrate the manifest complexities of communication analysis and pragmatics in these relatively new networked, mediated contexts. Judith Seipold provides an extensive overview of the burgeoning literature on the use and potential of mobile technologies in learning and educational ecologies. The research perspectives or frameworks covered by Seipold include critical, ethical, resource-centered, learning process-centered as well as ecological frames of reference. In her coverage of the last of these, not only does Seipold help to reframe the theme of this special issue as a whole, she also provides an excellent segue to the ecologically oriented analysis of «mobile learning» that follows. Ben Bachmair and Norbert Pachler’s contribution, «A Cultural Ecological Frame for Mobility and Learning», reflects the work of the London Mobile Learning Group, examining mobile resources and affordances from the ecological perspectives of Gibson, Postman and the seminal German media-pedagogue, Dieter Baacke. Using the structuration theory of Anthony Giddens, Bachmair, Norbert and Cook elaborate the aforementioned triangular model for understanding both the agency and the cultural and structural constraints offered by mobile technologies. In «Building as Interface: Sustainable Educational Ecologies», Suzanne de Castell, Milena Droumeva and Jen Jenson connect learning and media ecologies with the material, global and ecological challenges that have become a part of the anthropocene. They do so by examining the mediation of a physical, architectural environment, their own departmental environment at Simon Fraser University. De Castell, Droumeva and Jenson uncover a range of practical and theoretical challenges, and explore the implications for both body and mind. Markus Deimann takes the reader back into the history of continental educational theory, to Humboldt’s (and others‘) expansive understanding of Bildung, to suggest a conceptual ecology germane to the manifold possibilities that are now on offer through open education. Deimann sees the «open paradigm» as changing education utterly – and for the better. It will do so, Deimann predicts, by «unbundling» resource and service provision, and assessment and accreditation functions that have for too long been monopolized by the educational monoliths known as «universities». Theo Hug’s contribution, «Media Form School – A Plea for Expanded Action Orientations and Reflective Perspectives» similarly looks to the past to envision possibilities for the future. Hug’s concern is with the narrow confines in which media are conceptualized and operationalized in many K-12 educational ecologies, and in the corresponding policy and curricular documents that further constrain and direct this action. Hug suggests looking to the recent past, the 1970s and 1960s, in which alternatives were envisioned not only by figures like McLuhan and Illich, but also intimated in the works of Austrian poets and artists. Norm Friesen provides the third «rearview mirror» perspective in his examination of the lecture as a trans-medial pedagogical form. From the late medieval university through to today’s IGNITE and TED talks, the lecture has accommodated and reflected a wide range of media ecologies, technical conditions and epistemological patterns. New media technologies –from the (data) projector to lecture capture media– have not rendered the lecture obsolete, but have instead foregrounded its performative aspects and its ongoing adaptability. Michael Kerres and Richard Heinen take as their starting point Deimann’s, Hug’s and Friesen’s stress on the manifold possibilities presented digital and open educational resources. They then seek to answer the question: How can this embarrassment of riches be put to good use in K-12 educational contexts? Their answer: «Edutags», a way of making resources more accessible and usable by providing descriptive and evaluative information along with such resources. Heinz Moser and Thomas Hermann present the concept and first results of the project «Visualized Vocational Aspirations: Potentials of photography for career counselling and vocational preparation».5 The research project is a cooperation between the Zurich University of Teacher Education (Pädagogische Hochschule Zürich) and the «Laufbahnzentrum» (Centre of Vocational Counselling) Zürich. Based on an ecological approach of narrative career education and a design-based research methodology the undertaking aims at creative applications of visual storytelling in career counselling. Rainer Leschke and Norm Friesen conclude the issue with what might be called an aesthetic- or formal-ecological perspective. The digital convergence of textual and other media forms, Leschke and Friesen maintain, means the erasure of formal and material distinctions traditionally embedded in separate media. Educational (and other) institutions have oriented long themselves on the basis of such distinctions; and what is now left are distinctions based only on recombinant, virtual aesthetic markers. ——————————— The exceptions are the papers by Rainer Leschke and Norm Friesen, Michael Kerres and Richard Heinen, and Theo Hug. See: http://kw.uni-paderborn.de/institute-einrichtungen/mewi/arbeitsschwerpunkte/prof-dr-dorothee-m-meister/tagungen/educational-media- ecologies-international-perspectives/ (2014-7-8). Cf. definitions of the Media Ecology Association (MEA): http://www.media-ecology.org/media_ecology/index.html (2014-7-8). For more about these variations on the terms «media» and «mediation», see: Norm Friesen and Theo Hug. 2009. «The Mediatic Turn: Exploring Consequences for Media Pedagogy.» In Mediatization: Concept, Changes, Consequences, edited by Knut Lundby, 64–81. New York: Peter Lang. http://learningspaces.org/papers/Media_Pedagogy_&_Mediatic_Turn.pdf The project is funded by the Swiss National Science Foundation (project 136617, duration: March 1, 2012 – February 28, 2015).

Teacher's abilities to understand the benefits and use of media literacy play an important role in dealing with children as digital natives. Media literacy education can be an instrument through the use of blended-learning websites to address the challenges of education in the 21st century and learning solutions during and after the Covid-19 pandemic. This study aims to figure the teacher's perspective in understanding media literacy as an instrument for implementing blended-learning in early-childhood classes. Using a qualitative approach, this study combines two types of data. Data collection involved kindergarten teachers, six people as informants who attended the interviews and twenty-six participants who filled out questionnaires. Typological data analysis was used for qualitative data as well as simple statistical analysis to calculate the percentage of teacher perspectives on questionnaires collected the pandemic. The findings show five categories from the teacher's perspective. First, about the ability to carry out website-based blended-learning and the use of technology in classrooms and distance learning is still low. It must be transformed into more creative and innovative one. Encouraging teacher awareness of the importance of media literacy education for teachers as a more effective integrated learning approach, especially in rural or remote areas, to be the second finding. Third, national action is needed to change from traditional to blended-learning culture. Fourth, the high need for strong environmental support, such as related-party policies and competency training is the most important finding in this study. Finally, the need for an increase in the ease of access to technology use from all related parties, because the biggest impact of the Covid-19 pandemic is on ECE, which is closely related to the perspective of teachers on technology. The research implication demands increase in technology systems and connections between educators, parents, institutional managers, and education policy holders, for ECE services in urban areas for disadvantaged children, and all children in rural or remote areas. Keywords: Blended Learning, Early Childhood Classroom, Media Literacy Education References Aktay, S. (2009). The ISTE national educational technology standards and prospective primary school teachers in Turkey. International Journal of Learning, 16(9), 127–138. https://doi.org/10.18848/1447-9494/cgp/v16i09/46607 Arke, E. T., & Primack, B. A. (2009). Quantifying media literacy: Development, reliability, and validity of a new measure. Educational Media International, 46(1), 53–65. https://doi.org/10.1080/09523980902780958 Briquet-Duhazé, S. (2019). Websites Consulted by Future Primary Level Schoolteachers in France: Differences between Students and Trainees. 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Background: Missing outcome data in clinical trials are important determinants of internal validity; however, its burden and risk in gestational diabetes mellitus (GDM) mothers supplemented with vitamin D remain poorly studied. Therefore, a systematic review and meta-analysis protocol is proposed here to study it. Methods: The English language publications, irrespective of its publication date, will be searched in electronic databases for randomized controlled trials studying the above outcome. The eligible trials will undergo the risk of bias assessment by the Cochrane tool. Data on its trial design, population characteristics, interventions compared, and the outcome will be abstracted. The prevalence and incidence (in risk ratio) of missing outcome data will be estimated meta-analytically. The statistical heterogeneity assessment will include the use of Chi2 and I2 statistics. For the explanation of any substantial heterogeneity, a meta-regression analysis will ensue. The statistical significance will be determined at P <0.05 and 95% CI. All analyses will be done in Stata statistical software. If the quantitative analysis is not possible, narrative reporting will happen. Results: The reporting of the review will follow the PRISMA guideline. Statistically significant pairwise meta-analysis finding's grading will occur by the GRADE approach. Conclusion: The proposed review will estimate the prevalence of missing outcome data in vitamin D supplemented GDM mothers in clinical trials and compare its risk with the placebo recipients. PROSPERO registration ID: CRD42020180634 References Quintanilla Rodriguez BS, Mahdy H. Gestational Diabetes. [Updated 2019 Dec 23]. StatPearls. Treasure Isl StatPearls Publ. 2020. Available from: https://www.ncbi.nlm.nih.gov/books/NBK545196/ Committee on Practice Bulletins—Obstetrics. ACOG Practice Bulletin No. 190: Gestational Diabetes Mellitus. Obstet Gynecol. 2018;131: e49–64. Available from: http://www.ncbi.nlm.nih.gov/pubmed/29370047 Mack LR, Tomich PG. Gestational Diabetes: Diagnosis, Classification, and Clinical Care. Obstet Gynecol Clin North Am [Internet]. 2017; 44:207–17. Available from: http://www.ncbi.nlm.nih.gov/pubmed/28499531 Coustan DR. Gestational Diabetes Mellitus. Clin Chem. 2013; 59:1310–21. Available from: http://www.clinchem.org/cgi/doi/10.1373/clinchem.2013.203331 Management of Diabetes in Pregnancy: Standards of Medical Care in Diabetes—2019. Diabetes Care. 2019;42: S165–72. Available from: http://care.diabetesjournals.org/lookup/doi/10.2337/dc19-S014 Saha S. Compliance and barriers to self-monitoring of blood glucose in patients with gestational diabetes mellitus: A systematic review. Int J Health Sci (Qassim).2019;13:44–52. Available from: http://www.ncbi.nlm.nih.gov/pubmed/31123440 Akbari M, Mosazadeh M, Lankarani K, Tabrizi R, Samimi M, Karamali M, et al. The effects of vitamin d supplementation on glucose metabolism and lipid profiles in patients with gestational diabetes: a systematic review and meta-analysis of randomized controlled trials. Horm Metab Res.Germany; 2017;49:647–53. Available from: http://www.thieme-connect.de/DOI/DOI?10.1055/s-0043-115225 Saha S, Saha S. A comparison of the risk of cesarean section in gestational diabetes mellitus patients supplemented antenatally with vitamin D containing supplements versus placebo: A systematic review and meta-analysis of double-blinded randomized controlled trials. J Turkish-German Gynecol Assoc. 2020; 21:201–12. https://dx.doi.org/10.4274%2Fjtgga.galenos.2020.2019.0164 Saha SS, Saha SS. The risk of morbidities in newborns of antenatal vitamin D supplemented gestational diabetes mellitus patients. Int J Health Sci (Qassim). Qassim University; 2020; 14:3–17. Available from: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7475207/ Saha S, Saha S. A Comparison of the Changes in Gestational Weight, Body Mass Index, and Serum Vitamin D Level in Gestational Diabetes Mellitus Patients Complemented with Vitamin D in Contrast to Those Who Did Not Receive the Supplement: A Protocol for Systematic Review a. Int J Diabetes Metab. S. Karger AG; 2019; 25:74–9. https://doi.org/10.1159/000505269 Mavridis D, White IR. Dealing with missing outcome data in meta‐ Res Synth Methods.2020;11:2–13. Available from: https://onlinelibrary.wiley.com/doi/abs/10.1002/jrsm.1349 Higgins JPT GS (editors). Cochrane Handbook for Systematic Reviews of Interventions Version 5.1.0 [updated March 2011]. Cochrane Collab. 2011 [cited 2020 Aug 27]. Available from: https://training.cochrane.org/handbook/archive/v5.1/ Asemi Z, Hashemi T, Karamali M, Samimi M, Esmaillzadeh A. Effects of vitamin D supplementation on glucose metabolism, lipid concentrations, inflammation, and oxidative stress in gestational diabetes: a double-blind, randomized controlled clinical trial. Am J Clin Nutr.2013;98:1425–32. https://doi.org/10.3945/ajcn.113.072785 Asemi Z, Karamali M, Esmaillzadeh A. Effects of calcium–vitamin D co-supplementation on glycaemic control, inflammation and oxidative stress in gestational diabetes: a randomised placebo-controlled trial. Diabetologia .2014;57:1798–806. https://doi.org/10.1007/s00125-014-3293-x Institute of Medicine (US) Committee to Review Dietary Reference Intakes for Vitamin D and Calcium. Dietary Reference Intakes for Calcium and Vitamin D. Ross AC, Taylor CL, Yaktine AL, Del Valle HB, editors. Washington (DC): National Academies Press (US); 2011. Available from: https://books.google.co.in/books?id=VF2aRQJ6IZ4C Gossman W, Chauhan K, Huecker MR. Vitamin D. StatPearls. 2019. Available from: http://www.ncbi.nlm.nih.gov/pubmed/28722941 Curtis EM, Moon RJ, Harvey NC, Cooper C. Maternal vitamin D supplementation during pregnancy. Br Med Bull. 2018; 126:57–77. https://doi.org/10.1093/bmb/ldy010 Knabl J, Vattai A, Ye Y, Jueckstock J, Hutter S, Kainer F, et al. Role of Placental VDR Expression and Function in Common Late Pregnancy Disorders. I Int J Mol Sci. 2017;18(11):2340. https://doi.org/10.3390/ijms18112340 Yazdchi R, Gargari BP, Asghari-Jafarabadi M, Sahhaf F. Effects of vitamin D supplementation on metabolic indices and hs-CRP levels in gestational diabetes mellitus patients: a randomized, double-blinded, placebo-controlled clinical trial. Nutr Res Pract. 2016; 10:328. Available from: http://synapse.koreamed.org/DOIx.php?id=10.4162/nrp.2016.10.3.328 Jamilian M, Samimi M, Ebrahimi FA, Hashemi T, Taghizadeh M, Razavi M, et al. The effects of vitamin D and omega-3 fatty acid co-supplementation on glycemic control and lipid concentrations in patients with gestational diabetes. J Clin Lipidol. 2017; 11:459–68. https://doi.org/10.1016/j.jacl.2017.01.011 Li Q, Xing B. Vitamin D3-Supplemented Yogurt Drink Improves Insulin Resistance and Lipid Profiles in Women with Gestational Diabetes Mellitus: A Randomized Double Blinded Clinical Trial. Ann Nutr Metab. 2016; 68:285–90. https://doi.org/10.1159/000447433 Karamali M, Bahramimoghadam S, Sharifzadeh F, Asemi Z. Magnesium–zinc–calcium–vitamin D co-supplementation improves glycemic control and markers of cardiometabolic risk in gestational diabetes: a randomized, double-blind, placebo-controlled trial. Appl Physiol Nutr Metab. 2018; 43:565–70. Available from: http://www.nrcresearchpress.com/doi/10.1139/apnm-2017-0521 Hosseinzadeh-Shamsi-Anar M, Mozaffari-Khosravi H, Salami M-A, Hadinedoushan H, Mozayan MR. The efficacy and safety of a high dose of vitamin d in mothers with gestational diabetes mellitus: a randomized controlled clinical trial. Iran J Med Sci. 2012; 37:159–65. Available from: http://www.ncbi.nlm.nih.gov/pubmed/23115447 Saha S. Impact of missingness on clinical trials on the effectiveness of antenatal vitamin D supplementation in gestational diabetes mellitus patients. J Ideas Heal. 2020; 3:138–9. https://doi.org/10.47108/jidhealth.Vol3.Iss1.47 Saha S, Saha S. The variation in participant attrition between prenatal vitamin D supplemented and not supplemented gestational diabetes mellitus patients: a systematic review and meta-analysis of randomized controlled trials. PROSPERO. 2020. https://www.crd.york.ac.uk/prospero/display_record.php?ID=CRD42020180634 Moher D, Shamseer L, Clarke M, Ghersi D, Liberati A, Petticrew M, et al. Preferred reporting items for systematic review and meta-analysis protocols (PRISMA-P) 2015 statement. Syst Rev. 2015; 4:1. https://doi.org/10.1186/2046-4053-4-1 Ouzzani M, Hammady H, Fedorowicz Z, Elmagarmid A. Rayyan—a web and mobile app for systematic reviews. Syst Rev. 2016; 5:210. https://doi.org/10.1186/s13643-016-0384-4 American Diabetes Association. 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Pollution is considered as an important problem in the present world. Usage of Gas Lawn-mowers creates Noise and Smoke pollution which is harmful to the environment. So the replacement of Gas mowers with the Electric lawn mowers which runs by Electric motors will be the better solution. The design objective is to build an electric lawn mower which is controlled by using a micro-controller called NodeMCU. The micro-controller is connected wirelessly to the mobile phone through Wi-Fi. The use of IoT (Internet of Things) in this lawn mower plays a major role. The whole model is controlled with the mobile application. We use a total of three controls in the application which is used to control the movements of the geared motors. Two of these controls are used for the motion of the lawn mower, and the third controls the cutting motor. The speed of all these motion motors can be controlled since analog outputs are obtained from the NodeMCU. Here, human effort is less. Compared to the gas mower, the electric mower has a less pollution rate.

The mobile robotics industries moving forward with innovative approach to solve the humanitarian problems. In this work, the scope is limited to cleaning backyard and front yard landscaping; the maintenance of these premises are mundane tasks which takes up lot of human effort and consumes time. Tasks like mow grass and dusting off the dead leaf’s using gardening robot for lawns and play grounds could be given to robot for effective maintenance. In this work a cost-effective method of navigation and boundary defining of the lawn/play ground is attempted. A set of defined mowing operation is coded in the robot for path planning and boundary defining of the target. Robot docking station is done using same boundary wire technique for charging the battery and resuming the work as required. The lawn mower estimate distance moved using ground speed sensor

Background: Throughout the past few years numerous Medium Access Control (MAC) protocols, routing protocols, node deployment mechanisms and duty cycle variation schemes have been designed for achieving high throughput, low delay and jitter, and long network lifetime in Wireless Sensor Networks (WSNs). In a WSN with static sink, voluminous sensors transmit their sensed data to the sink node. The coordinators mutually present in the range of sensors and sink have to forward the plentiful of packets which causes rapid depletion of their battery. These coordinators become dead too early resulting in the breakage of communication channel and formation of energy holes. However, to save energy with static sink the duty cycle should be short. A mobile sink is a better option than a static sink if the duty cycle is long, as it balances energy consumption among the sensors. It is well observed that mobile sink is capable of acquiring homogeneous energy depletion leading to stretched lifetime enhancing network performance. Method: The vital benefaction of this paper is to present a simulation based analysis of the network performance with a mobile sink having different trajectories of path traversed at different velocities. The intent is to find out the most appropriate and efficient trajectory and a particular velocity for a specific WSN with 100 nodes. The terrain area of the network is 210×210 m2 with the communication range of 20 m. The routing, network and MAC protocols implemented are Ad hoc On-Demand Distance Vector (AODV), Internet Protocol version 4 (IPv4) and Institute of Electrical and Electronics Engineers (IEEE) 802.15.4 respectively. This paper has evaluated and analyzed the influence of lawn mower, elliptical and circular trajectories of a mobile sink moving at the different velocities of 0.5, 1 and 2 m/s. The optimum performance is achieved at the velocity of 2 m/s for circular trajectory of the mobile sink. It is observed that performance has significantly varied with the variation of trajectories and velocities. The notion of precise utilization of sink mobility improves the performance than a static sink. It is equally important to determine the most effective mechanism to implement mobile sinks and to find out the most appropriate scheme out of them. Results: The attainment parameters just as total messages received, average end to end delay (seconds), jitter (seconds), throughput (bits per second), number of packets dropped, number of packets dropped due to channel access failure, residual battery (mAh) and network lifetime (hours) for different trajectories such as lawn mower, elliptical and circular at different speeds of 0.5, 1 and 2 m/s of the sink node are evaluated and compared. The simulation results present that the circular trajectory and the velocity of 2 m/s has provided the optimum performance. Conclusion: The objective is to precisely analyze and evaluate the influence of different trajectories of a mobile sink moving at different velocities in a WSN of 100 nodes to determine the most effective and appropriate trajectory and velocity to optimize the attainments. The intent is to uniform the power exhaustion amidst the sensors. The purpose is to gain the attention of researchers to this field to significantly contribute in novel research.

The mobile robots which can move on complicated working surfaces play a significant role in the automation of various technological processes, in particular, ship repair, fire fighting, inspection of welding quality, rescue operations, etc. This work is a continuation of the authors’ investigation of the mobile robot’s moving on inclined and vertical ferromagnetic surfaces based on a magnetically operated wheel-mover. Special attention is paid to constructing magnetically operated wheel-mover with twelve legs and modeling of the robot’s wheel-mover behavior in different working modes including investigations of the wheel-mover center trajectory, behavior of control signals, etc. Geometrical dependences between a number of wheel-mover legs and deviation of the wheel center path from horizontal line are described. In the present article the modeling results for movement of the wheel-mover on both plain and non-plain surfaces are discussed. For this purpose, the mathematical model of the wheel-mover was created and analyzed and the results were verified using a simulation approach.

AbstractThis paper studies competition in the German market for mobile telecommunications, motivated by recent suggestions that T-Mobile and Vodafone possess a position of collective dominance. Allegedly, their position of joint dominance is secured through a combination of first-mover advantages and discrimination between on-net and off-net prices. While our qualitative analysis remains inconclusive, as some factors tend to favour collusion while others make collusion more difficult to sustain, our empirical analysis suggests that T-Mobile and Vodafone cannot act independently of their smaller rivals, but that they are disciplined by their smaller competitors’ offerings

In the last decade, the cell phone’s transformation from a tool for mobile telephony into a multi-modal, computational “smart” media device has engendered a new kind of emplacement, and the ubiquity of technological mediation into the everyday settings of urban life. With it, a new kind of media literacy has become necessary for participation in the networked social publics (Ito; Jenkins et al.). Increasingly, the way we experience our physical environments, make sense of immediate events, and form impressions is through the lens of the camera and through the ear of the microphone, framed by the mediating possibilities of smartphones. Adopting these practices as a kind of new media “grammar” (Burn 29)—a multi-modal language for public and interpersonal communication—offers new perspectives for thinking about the way in which mobile computing technologies allow us to explore our environments and produce new types of cultural knowledge. Living in the Social Multiverse Many of us are concerned about new cultural practices that communication technologies bring about. In her now classic TED talk “Connected but alone?” Sherry Turkle talks about the world of instant communication as having the illusion of control through which we micromanage our immersion in mobile media and split virtual-physical presence. According to Turkle, what we fear is, on the one hand, being caught unprepared in a spontaneous event and, on the other hand, missing out or not documenting or recording events—a phenomenon that Abha Dawesar calls living in the “digital now.” There is, at the same time, a growing number of ways in which mobile computing devices connect us to new dimensions of everyday life and everyday experience: geo-locative services and augmented reality, convergent media and instantaneous participation in the social web. These technological capabilities arguably shift the nature of presence and set the stage for mobile users to communicate the flow of their everyday life through digital storytelling and media production. According to a Digital Insights survey on social media trends (Bennett), more than 500 million tweets are sent per day and 5 Vines tweeted every second; 100 hours of video are uploaded to YouTube every minute; more than 20 billion photos have been shared on Instagram to date; and close to 7 million people actively produce and publish content using social blogging platforms. There are more than 1 billion smartphones in the US alone, and most social media platforms are primarily accessed using mobile devices. The question is: how do we understand the enormity of these statistics as a coherent new media phenomenon and as a predominant form of media production and cultural participation? More importantly, how do mobile technologies re-mediate the way we see, hear, and perceive our surrounding evironment as part of the cultural circuit of capturing, sharing, and communicating with and through media artefacts? Such questions have furnished communication theory even before McLuhan’s famous tagline “the medium is the message”. Much of the discourse around communication technology and the senses has been marked by distinctions between “orality” and “literacy” understood as forms of collective consciousness engendered by technological shifts. Leveraging Jonathan Sterne’s critique of this “audio-visual litany”, an exploration of convergent multi-modal technologies allows us to focus instead on practices and techniques of use, considered as both perceptual and cultural constructs that reflect and inform social life. Here in particular, a focus on sound—or aurality—can help provide a fresh new entry point into studying technology and culture. The phenomenon of everyday photography is already well conceptualised as a cultural expression and a practice connected with identity construction and interpersonal communication (Pink, Visual). Much more rarely do we study the act of capturing information using mobile media devices as a multi-sensory practice that entails perceptual techniques as well as aesthetic considerations, and as something that in turn informs our unmediated sensory experience. Daisuke and Ito argue that—in contrast to hobbyist high-quality photographers—users of camera phones redefine the materiality of urban surroundings as “picture-worthy” (or not) and elevate the “mundane into a photographic object.” Indeed, whereas traditionally recordings and photographs hold institutional legitimacy as reliable archival references, the proliferation of portable smart technologies has transformed user-generated content into the gold standard for authentically representing the everyday. Given that visual approaches to studying these phenomena are well underway, this project takes a sound studies perspective, focusing on mediated aural practices in order to explore the way people make sense of their everyday acoustic environments using mobile media. Curation, in this sense, is a metaphor for everyday media production, illuminated by the practice of listening with mobile technology. Everyday Listening with Technology: A Case Study The present conceptualisation of curation emerged out of a participant-driven qualitative case study focused on using mobile media to make sense of urban everyday life. The study comprised 10 participants using iPod Touches (a device equivalent to an iPhone, without the phone part) to produce daily “aural postcards” of their everyday soundscapes and sonic experiences, over the course of two to four weeks. This work was further informed by, and updates, sonic ethnography approaches nascent in the World Soundscape Project, and the field of soundscape studies more broadly. Participants were asked to fill out a questionnaire about their media and technology use, in order to establish their participation in new media culture and correlate that to the documentary styles used in their aural postcards. With regard to capturing sonic material, participants were given open-ended instructions as to content and location, and encouraged to use the full capabilities of the device—that is, to record audio, video, and images, and to use any applications on the device. Specifically, I drew their attention to a recording app (Recorder) and a decibel measurement app (dB), which combines a photo with a static readout of ambient sound levels. One way most participants described the experience of capturing sound in a collection of recordings for a period of time was as making a “digital scrapbook” or a “media diary.” Even though they had recorded individual (often unrelated) soundscapes, almost everyone felt that the final product came together as a stand-alone collection—a kind of gallery of personalised everyday experiences that participants, if anything, wished to further organise, annotate, and flesh out. Examples of aural postcard formats used by participants: decibel photographs of everyday environments and a comparison audio recording of rain on a car roof with and without wipers (in the middle). Working with 139 aural postcards comprising more than 250 audio files and 150 photos and videos, the first step in the analysis was to articulate approaches to media documentation in terms of format, modality, and duration as deliberate choices in conversation with dominant media forms that participants regularly consume and are familiar with. Ambient sonic recordings (audio-only) comprised a large chunk of the data, and within this category there were two approaches: the sonic highlight, a short vignette of a given soundscape with minimal or no introduction or voice-over; and the process recording, featuring the entire duration of an unfolding soundscape or event. Live commentaries, similar to the conventions set forth by radio documentaries, represented voice-over entries at the location of the sound event, sometimes stationary and often in motion as the event unfolded. Voice memos described verbal reflections, pre- or post- sound event, with no discernable ambience—that is, participants intended them to serve as reflective devices rather than as part of the event. Finally, a number of participants also used the sound level meter app, which allowed them to generate visual records of the sonic levels of a given environment or location in the form of sound level photographs. Recording as a Way of Listening In their community soundwalking practice, Förnstrom and Taylor refer to recording sound in everyday settings as taking world experience, mediating it through one’s body and one’s memories and translating it into approximate experience. The media artefacts generated by participants as part of this study constitute precisely such ‘approximations’ of everyday life accessed through aural experience and mediated by the technological capabilities of the iPod. Thinking of aural postcards along this technological axis, the act of documenting everyday soundscapes involves participants acting as media producers, ‘framing’ urban everyday life through a mobile documentary rubric. In the process of curating these documentaries, they have to make decisions about the significance and stylistic framing of each entry and the message they wish to communicate. In order to bring the scope of these curatorial decisions into dialogue with established media forms, in this work’s analysis I combine Bill Nichols’s classification of documentary modes in cinema with Karin Bijsterveld’s concept of soundscape ‘staging’ to characterise the various approaches participants took to the multi-modal curation of their everyday (sonic) experience. In her recent book on the staging of urban soundscapes in both creative and documentary/archival media, Bijsterveld describes the representation of sound as particular ‘dramatisations’ that construct different kinds of meanings about urban space and engender different kinds of listening positions. Nichols’s articulation of cinematic documentary modes helps detail ways in which the author’s intentionality is reflected in the styling, design, and presentation of filmic narratives. Michel Chion’s discussion of cinematic listening modes further contextualises the cultural construction of listening that is a central part of both design and experience of media artefacts. The conceptual lens is especially relevant to understanding mobile curation of mediated sonic experience as a kind of mobile digital storytelling. Working across all postcards, settings, and formats, the following four themes capture some of the dominant stylistic dimensions of mobile media documentation. The exploratory approach describes a methodology for representing everyday life as a flow, predominantly through ambient recordings of unfolding processes that participants referred to in the final discussion as a ‘turn it on and forget it’ approach to recording. As a stylistic method, the exploratory approach aligns most closely with Nichols’s poetic and observational documentary modes, combining a ‘window to the world’ aesthetic with minimal narration, striving to convey the ‘inner truth’ of phenomenal experience. In terms of listening modes reflected in this approach, exploratory aural postcards most strongly engage causal listening, to use Chion’s framework of cinematic listening modes. By and large, the exploratory approach describes incidental documentaries of routine events: soundscapes that are featured as a result of greater attentiveness and investment in the sonic aspects of everyday life. The entries created using this approach reflect a process of discovering (seeing and hearing) the ordinary as extra-ordinary; re-experiencing sometimes mundane and routine places and activities with a fresh perspective; and actively exploring hidden characteristics, nuances of meaning, and significance. For instance, in the following example, one participant explores a new neighborhood while on a work errand:The narrative approach to creating aural postcards stages sound as a springboard for recollecting memories and storytelling through reflecting on associations with other soundscapes, environments, and interactions. Rather than highlighting place, routine, or sound itself, this methodology constructs sound as a window into the identity and inner life of the recordist, mobilising most strongly a semantic listening mode through association and narrative around sound’s meaning in context (Chion 28). This approach combines a subjective narrative development with a participatory aesthetic that draws the listener into the unfolding story. This approach is also performative, in that it stages sound as a deeply subjective experience and approaches the narrative from a personally significant perspective. Most often this type of sound staging was curated using voice memo narratives about a particular sonic experience in conjunction with an ambient sonic highlight, or as a live commentary. Recollections typically emerged from incidental encounters, or in the midst of other observations about sound. In the following example a participant reminisces about the sound of wind, which, interestingly, she did not record: Today I have been listening to the wind. It’s really rainy and windy outside today and it was reminding me how much I like the sound of wind. And you know when I was growing up on the wide prairies, we sure had a lot of wind and sometimes I kind of miss the sound of it… (Participant 1) The aesthetic approach describes instances where the creation of aural postcards was motivated by a reduced listening position (Chion 29)—driven primarily by the qualities and features of the soundscape itself. This curatorial practice for staging mediated aural experience combines a largely subjective approach to documenting with an absence of traditional narrative development and an affective and evocative aesthetic. Where the exploratory documentary approach seeks to represent place, routine, environment, and context through sonic characteristics, the aesthetic approach features sound first and foremost, aiming to represent and comment on sound qualities and characteristics in a more ‘authentic’ manner. The media formats most often used in conjunction with this approach were the incidental ambient sonic highlight and the live commentary. In the following example we have the sound of coffee being made as an important domestic ritual where important auditory qualities are foregrounded: That’s the sound of a stovetop percolator which I’ve been using for many years and I pretty much know exactly how long it takes to make a pot of coffee by the sound that it makes. As soon as it starts gurgling I know I have about a minute before it burns. It’s like the coffee calls and I come. (Participant 6) The analytical approach characterises entries that stage mediated aural experience as a way of systematically and inductively investigating everyday phenomena. It is a conceptual and analytical experimental methodology employed to move towards confirming or disproving a ‘hypothesis’ or forming a theory about sonic relations developed in the course of the study. As such, this approach most strongly aligns with Chion’s semantic listening mode, with the addition of the interactive element of analytical inquiry. In this context, sound is treated as a variable to be measured, compared, researched, and theorised about in an explicit attempt to form conclusions about social relationships, personal significance, place, or function. This analytical methodology combines an explicit and critical focus to the process of documenting itself (whether it be measuring decibels or systematically attending to sonic qualities) with a distinctive analytical synthesis that presents as ‘formal discovery’ or even ‘truth.’ In using this approach, participants most often mobilised the format of short sonic highlights and follow-up voice memos. While these aural postcards typically contained sound level photographs (decibel measurement values), in some cases the inquiry and subsequent conclusions were made inductively through sustained observation of a series of soundscapes. The following example is by a participant who exclusively recorded and compared various domestic spaces in terms of sound levels, comparing and contrasting them using voice memos. This is a sound level photograph of his home computer system: So I decided to record sitting next to my computer today just because my computer is loud, so I wanted to see exactly how loud it really was. But I kept the door closed just to be sort of fair, see how quiet it could possibly get. I think it peaked at 75 decibels, and that’s like, I looked up a decibel scale, and apparently a lawn mower is like 90 decibels. (Participant 2) Mediated Curation as a New Media Cultural Practice? One aspect of adopting the metaphor of ‘curation’ towards everyday media production is that it shifts the critical discourse on aesthetic expression from the realm of specialised expertise to general practice (“Everyone’s a photographer”). The act of curation is filtered through the aesthetic and technological capabilities of the smartphone, a device that has become co-constitutive of our routine sensorial encounters with the world. Revisiting McLuhan-inspired discourses on communication technologies stages the iPhone not as a device that itself shifts consciousness but as an agent in a media ecology co-constructed by the forces of use and design—a “crystallization of cultural practices” (Sterne). As such, mobile technology is continuously re-crystalised as design ‘constraints’ meet both normative and transgressive user approaches to interacting with everyday life. The concept of ‘social curation’ already exists in commercial discourse for social web marketing (O’Connell; Allton). High-traffic, wide-integration web services such as Digg and Pinterest, as well as older portals such as Reddit, all work on the principles of arranging user-generated, web-aggregated, and re-purposed content around custom themes. From a business perspective, the notion of ‘social curation’ captures, unsurprisingly, only the surface level of consumer behaviour rather than the kinds of values and meaning that this process holds for people. In the more traditional sense, art curation involves aesthetic, pragmatic, epistemological, and communication choices about the subject of (re)presentation, including considerations such as manner of display, intended audience, and affective and phenomenal impact. In his 2012 book tracing the discourse and culture of curating, Paul O’Neill proposes that over the last few decades the role of the curator has shifted from one of arts administrator to important agent in the production of cultural experiences, an influential cultural figure in her own right, independent of artistic content (88). Such discursive shifts in the formulation of ‘curatorship’ can easily be transposed from a specialised to a generalised context of cultural production, in which everyone with the technological means to capture, share, and frame the material and sensory content of everyday life is a curator of sorts. Each of us is an agent with a unique aesthetic and epistemological perspective, regardless of the content we curate. The entire communicative exchange is necessarily located within a nexus of new media practices as an activity that simultaneously frames a cultural construction of sensory experience and serves as a cultural production of the self. To return to the question of listening and a sound studies perspective into mediated cultural practices, technology has not single-handedly changed the way we listen and attend to everyday experience, but it has certainly influenced the range and manner in which we make sense of the sensory ‘everyday’. Unlike acoustic listening, mobile digital technologies prompt us to frame sonic experience in a multi-modal and multi-medial fashion—through the microphone, through the camera, and through the interactive, analytical capabilities of the device itself. Each decision for sensory capture as a curatorial act is both epistemological and aesthetic; it implies value of personal significance and an intention to communicate meaning. The occurrences that are captured constitute impressions, highlights, significant moments, emotions, reflections, experiments, and creative efforts—very different knowledge artefacts from those produced through textual means. Framing phenomenal experience—in this case, listening—in this way is, I argue, a core characteristic of a more general type of new media literacy and sensibility: that of multi-modal documenting of sensory materialities, or the curation of everyday life. References Allton, Mike. “5 Cool Content Curation Tools for Social Marketers.” Social Media Today. 15 Apr. 2013. 10 June 2015 ‹http://socialmediatoday.com/mike-allton/1378881/5-cool-content-curation-tools-social-marketers›. Bennett, Shea. “Social Media Stats 2014.” Mediabistro. 9 June 2014. 20 June 2015 ‹http://www.mediabistro.com/alltwitter/social-media-statistics-2014_b57746›. Bijsterveld, Karin, ed. Soundscapes of the Urban Past: Staged Sound as Mediated Cultural Heritage. Bielefeld: Transcript-Verlag, 2013. Burn, Andrew. Making New Media: Creative Production and Digital Literacies. New York, NY: Peter Lang Publishing, 2009. Daisuke, Okabe, and Mizuko Ito. “Camera Phones Changing the Definition of Picture-worthy.” Japan Media Review. 8 Aug. 2015 ‹http://www.dourish.com/classes/ics234cw04/ito3.pdf›. Chion, Michel. Audio-Vision: Sound on Screen. New York, NY: Columbia UP, 1994. Förnstrom, Mikael, and Sean Taylor. “Creative Soundwalks.” Urban Soundscapes and Critical Citizenship Symposium. Limerick, Ireland. 27–29 March 2014. Ito, Mizuko, ed. Hanging Out, Messing Around, and Geeking Out: Kids Living and Learning with New Media. Cambridge, MA: The MIT Press, 2010. Jenkins, Henry, Ravi Purushotma, Margaret Weigel, Katie Clinton, and Alice J. Robison. Confronting the Challenges of Participatory Culture: Media Education for the 21st Century. White Paper prepared for the McArthur Foundation, 2006. McLuhan, Marshall. Understanding Media: The Extensions of Man. New York: McGraw-Hill, 1964. Nichols, Brian. Introduction to Documentary. Bloomington & Indianapolis, Indiana: Indiana UP, 2001. Nielsen. “State of the Media – The Social Media Report.” Nielsen 4 Dec. 2012. 12 May 2015 ‹http://www.nielsen.com/us/en/insights/reports/2012/state-of-the-media-the-social-media-report-2012.html›. O’Connel, Judy. “Social Content Curation – A Shift from the Traditional.” 8 Aug. 2011. 11 May 2015 ‹http://judyoconnell.com/2011/08/08/social-content-curation-a-shift-from-the-traditional/›. O’Neill, Paul. The Culture of Curating and the Curating of Culture(s). Cambridge, MA: MIT Press, 2012. Pink, Sarah. Doing Visual Ethnography. London, UK: Sage, 2007. ———. Situating Everyday Life. London, UK: Sage, 2012. Sterne, Jonathan. The Audible Past: Cultural Origins of Sound Reproduction. Durham, NC: Duke UP, 2003. Schafer, R. Murray, ed. World Soundscape Project. European Sound Diary (reprinted). Vancouver: A.R.C. Publications, 1977. Turkle, Sherry. “Connected But Alone?” TED Talk, Feb. 2012. 8 Aug. 2015 ‹http://www.ted.com/talks/sherry_turkle_alone_together?language=en›.

PurposeReviews the latest management development across the globe and pinpoints practical implications from cutting‐edge research and case studies.Design/methodology/approachThis briefing is prepared by an independent writer who adds their own impartial comments and places the articles in context.FindingsDoes Tele2's change in strategy from virtual operator to incumbent reflect a sign of the times? As a company focused “on being long on customers and short on infrastructure,” Tele2 seized the opportunity as an early‐mover in the Mobile Virtual Operator Network market at the end of the 1990s and has evolved into “Europe's leading alternative telecoms operator.” Since 2003, however, Tele2 has shown signs of building its own infrastructure. This shift from “virtual operations yield the best margins” to “owning your own infrastructure yields the best margins,” has caused unease among analysts and shareholders.Practical implicationsProvides strategic insights and practical thinking that have influenced some of the world's leading organizations.Originality/valueThe briefing saves busy executives and researchers hours of reading time by selecting only the very best, most pertinent information and presenting it in a condensed and easy‐to‐digest format.

History as a body of knowledge, a loose bundle of working routines and writing practices, of genres, memories, imaginaries, and institutions, has struggled with its relationship to “religion” for a long time. In the European tradition, but also elsewhere, historical writing often served to fill the gaps in the knowledge about the past that had been, in the main, supplied by scriptural tradition. At the same time, historical writing also became a competitor with this tradition. The resulting relationship was, and continues to be, uneasy. In its familiar present-day form, for example, the quality of being “historical,” i.e. “historicity,” requires the exclusion of divine agency as a permissible explanation of events in the course of worldly affairs. In what François Hartog calls the modern “regime of historicity,” the culture of historical writing after 1750 became dominated by scholarship and aligned with mechanist understandings of the philosophy of nature. Enlightenment-era historical writing increasingly conceived of the world as a nexus of cause–effect relations that afforded space to the divine agency only in the function of “prime mover.” History then appeared to fall in line with the other forces of reason-driven “secularization” that stripped religious knowledge of the privilege of explaining things in the world, ultimately transforming it into “dogma” and “belief,” both only tenuously connected to reality. Knowledge based on the divinely “revealed” texts and the divinely “inspired” thought of traditionally recognized religious authorities lost its previous epistemic standing. Yet this loss occurred, to the extent that it did, in the form of a highly complicated negotiation, with compromises stacked on top of other compromises, generating a continuously confusing and mobile state of affairs.

Unlike some current discourse on automediality, this essay eschews most of the analysis concerning the adoption or modification of avatars to deliberately enhance, extend or distort the self. Rather than the automedial enabling of alternative, virtual selves modified by playful, confronting or disarming avatars we concentrate instead on emerging efforts to present the self in hyper-realist, interactive modes. In doing so we ask, what is the relationship between traumatic forms of automediation and the affective impact on and response of the audience? We argue that, while on the one hand there are promising avenues for valuable individual and social engagements with traumatic forms of automediation, there is an overwhelming predominance of suffering as a theme in such virtual depictions, comingled with uncritically asserted promises of empathy, which are problematic as the technology assumes greater mainstream uptake.As Smith and Watson note, embodiment is always a “translation” where the body is “dematerialized” in virtual representation (“Virtually” 78). Past scholarship has analysed the capacity of immersive realms, such as Second Life or online games, to highlight how users can modify their avatars in often spectacular, non-human forms. Critics of this mode of automediality note that users can adopt virtually any persona they like (racial, religious, gendered and sexual, human, animal or hybrid, and of any age), behaving as “identity tourists” while occupying virtual space or inhabiting online communities (Nakamura). Furthermore, recent work by Jaron Lanier, a key figure from the 1980s period of early Virtual Reality (VR) technology, has also explored so-called “homuncular flexibility” which describes the capacity for humans to seemingly adapt automatically to the control mechanisms of an avatar with multiple legs, other non-human appendages, or for two users to work in tandem to control a single avatar (Won et. al.). But this article is concerned less with these single or multi-player online environments and the associated concerns over modifying interactive identities. We are principally interested in other automedial modes where the “auto” of autobiography is automated via Artificial Intelligences (AIs) to convincingly mimic human discourse as narrated life-histories.We draw from case studies promoted by the 2017 season of ABC television’s flagship science program, Catalyst, which opened with semi-regular host and biological engineer Dr Jordan Nguyen, proclaiming in earnest, almost religious fervour: “I want to do something that has long been a dream. I want to create a copy of a human. An avatar. And it will have a life of its own in virtual reality.” As the camera followed Nguyen’s rapid pacing across real space he extolled: “Virtual reality, virtual human, they push the limits of the imagination and help us explore the impossible […] I want to create a virtual copy of a person. A digital addition to the family, using technology we have now.”The troubling implications of such rhetoric were stark and the next third of the program did little to allay such techno-scientific misgivings. Directed and produced by David Symonds, with Nguyen credited as co-developer and presenter, the episode “Meet the Avatars” immediately introduced scenarios where “volunteers” entered a pop-up inner city virtual lab, to experience VR for the first time. The volunteers were shown on screen subjected to a range of experimental VR environments designed to elicit fear and/or adverse and disorienting responses such as vertigo, while the presenter and researchers from Sydney University constantly smirked and laughed at their participants’ discomfort. We can only wonder what the ethics process was for both the ABC and university researchers involved in these broadcast experiments. There is little doubt that the participant/s experienced discomfort, if not distress, and that was televised to a national audience. Presenter Nguyen was also shown misleading volunteers on their way to the VR lab, when one asked “You’re not going to chuck us out of a virtual plane are you?” to which Nguyen replied “I don't know what we’re going to do yet,” when it was next shown that they immediately underwent pre-programmed VR exposure scenarios, including a fear of falling exercise from atop a city skyscraper.The sweat-inducing and heart rate-racing exposures to virtual plank walks high above a cityscape, or seeing subjects haptically viewing spiders crawl across their outstretched virtual hands, all elicited predictable responses, showcased as carnivalesque entertainment for the viewing audience. As we will see, this kind of trivialising of a virtual environment’s capacity for immersion belies the serious use of the technology in a range of treatments for posttraumatic stress disorder (see Rizzo and Koenig; Rothbaum, Rizzo and Difede).Figure 1: Nguyen and researchers enjoying themselves as their volunteers undergo VR exposure Defining AutomedialityIn their pioneering 2008 work, Automedialität: Subjektkonstitution in Schrift, Bild und neuen Medien, Jörg Dünne and Christian Moser coined the term “automediality” to problematise the production, application and distribution of autobiographic modes across various media and genres—from literary texts to audiovisual media and from traditional expression to inter/transmedia and remediated formats. The concept of automediality was deployed to counter the conventional critical exclusion of analysis of the materiality/technology used for an autobiographical purpose (Gernalzick). Dünne and Moser proffered a concept of automediality that rejects the binary division of (a) self-expression determining the mediated form or (b) (self)subjectivity being solely produced through the mediating technology. Hence, automediality has been traditionally applied to literary constructs such as autobiography and life-writing, but is now expanding into the digital domain and other “paratextual sites” (Maguire).As Nadja Gernalzick suggests, automediality should “encourage and demand not only a systematics and taxonomy of the constitution of the self in respectively genre-specific ways, but particularly also in medium-specific ways” (227). Emma Maguire has offered a succinct working definition that builds on this requirement to signal the automedial universally, noting it operates asa way of studying auto/biographical texts (of a variety of forms) that take into account how the effects of media shape the kinds of selves that can be represented, and which understands the self not as a preexisting subject that might be distilled into story form but as an entity that is brought into being through the processes of mediation.Sidonie Smith and Julia Watson point to automediality as a methodology, and in doing so emphasize how the telling or mediation of a life actually shapes the kind of story that can be told autobiographically. They state “media cannot simply be conceptualized as ‘tools’ for presenting a preexisting, essential self […] Media technologies do not just transparently present the self. They constitute and expand it” (Smith and Watson “Virtually Me” 77).This distinction is vital for understanding how automediality might be applied to self-expression in virtual domains, including the holographic avatar dreams of Nguyen throughout Catalyst. Although addressing this distinction in relation to online websites, following P. David Marshall’s description of “the proliferation of the public self”, Maguire notes:The same integration of digital spaces and platforms into daily life that is prompting the development of new tools in autobiography studies […] has also given rise to the field of persona studies, which addresses the ways in which individuals engage in practices of self-presentation in order to form commoditised identities that circulate in affective communities.For Maguire, these automedial works operate textually “to construct the authorial self or persona”.An extension to this digital, authorial construction is apparent in the exponential uptake of screen mediated prosumer generated content, whether online or theatrical (Miller). According to Gernalzick, unlike fictional drama films, screen autobiographies more directly enable “experiential temporalities”. Based on Mary Anne Doane’s promotion of the “indexicality” of film/screen representations to connote the real, Gernalzick suggests that despite semiotic theories of the index problematising realism as an index as representation, the film medium is still commonly comprehended as the “imprint of time itself”:Film and the spectator of film are said to be in a continuous present. Because the viewer is aware, however, that the images experienced in or even as presence have been made in the past, the temporality of the so-called filmic present is always ambiguous” (230).When expressed as indexical, automedial works, the intrinsic audio-visual capacities of film and video (as media) far surpass the temporal limitations of print and writing (Gernalzick, 228). One extreme example can be found in an emergent trend of “performance crime” murder and torture videos live-streamed or broadcast after the fact using mobile phone cameras and FaceBook (Bender). In essence, the political economy of the automedial ecology is important to understand in the overall context of self expression and the governance of content exhibition, access, distribution and—where relevant—interaction.So what are the implications for automedial works that employ virtual interfaces and how does this evolving medium inform both the expressive autobiographical mode and audiences subjectivities?Case StudyThe Catalyst program described above strove to shed new light on the potential for emerging technology to capture and create virtual avatars from living participants who (self-)generate autobiographical narratives interactively. Once past the initial gee-wiz journalistic evangelism of VR, the episode turned towards host Nguyen’s stated goal—using contemporary technology to create an autonomous virtual human clone. Nguyen laments that if he could create only one such avatar, his primary choice would be that of his grandfather who died when Nguyen was two years old—a desire rendered impossible. The awkward humour of the plank walk scenario sequence soon gives way as the enthusiastic Nguyen is surprised by his family’s discomfort with the idea of digitally recreating his grandfather.Nguyen next visits a Southern California digital media lab to experience the process by which 3D virtual human avatars are created. Inside a domed array of lights and cameras, in less than one second a life-size 3D avatar is recorded via 6,000 LEDs illuminating his face in 20 different combinations, with eight cameras capturing the exposures from multiple angles, all in ultra high definition. Called the Light Stage (Debevec), it is the same technology used to create a life size, virtual holocaust survivor, Pinchas Gutter (Ziv).We see Nguyen encountering a life-size, high-resolution 2D screen version of Gutter’s avatar. Standing before a microphone, Nguyen asks a series of questions about Gutter’s wartime experiences and life in the concentration camps. The responses are naturalistic and authentic, as are the pauses between questions. The high definition 4K screen is photo-realist but much more convincing in-situ (as an artifact of the Catalyst video camera recording, in some close-ups horizontal lines of transmission appear). According to the project’s curator, David Traum, the real Pinchas Gutter was recorded in 3D as a virtual holograph. He spent 25 hours providing 1,600 responses to a broad range of questions that the curator maintained covered “a lot of what people want to say” (Catalyst).Figure 2: The Museum of Jewish Heritage in Manhattan presented an installation of New Dimensions in Testimony, featuring Pinchas Gutter and Eva SchlossIt is here that the intersection between VR and auto/biography hybridise in complex and potentially difficult ways. It is where the concept of automediality may offer insight into this rapidly emerging phenomenon of creating interactive, hyperreal versions of our selves using VR. These hyperreal VR personae can be questioned and respond in real-time, where interrogators interact either as casual conversers or determined interrogators.The impact on visitors is sobering and palpable. As Nguyen relates at the end of his session, “I just want to give him a hug”. The demonstrable capacity for this avatar to engender a high degree of empathy from its automedial testimony is clear, although as we indicate below, it could simply indicate increased levels of emotion.Regardless, an ongoing concern amongst witnesses, scholars and cultural curators of memorials and museums dedicated to preserving the history of mass violence, and its associated trauma, is that once the lived experience and testimony of survivors passes with that generation the impact of the testimony diminishes (Broderick). New media modes of preserving and promulgating such knowledge in perpetuity are certainly worthy of embracing. As Stephen Smith, the executive director of the USC Shoah Foundation suggests, the technology could extendto people who have survived cancer or catastrophic hurricanes […] from the experiences of soldiers with post-traumatic stress disorder or survivors of sexual abuse, to those of presidents or great teachers. Imagine if a slave could have told her story to her grandchildren? (Ziv)Yet questions remain as to the veracity of these recorded personae. The avatars are created according to a specific agenda and the autobiographical content controlled for explicit editorial purposes. It is unclear what and why material has been excluded. If, for example, during the recorded questioning, the virtual holocaust survivor became mute at recollecting a traumatic memory, cried or sobbed uncontrollably—all natural, understandable and authentic responses given the nature of the testimony—should these genuine and spontaneous emotions be included along with various behavioural ticks such as scratching, shifting about in the seat and other naturalistic movements, to engender a more profound realism?The generation of the photorealist, mimetic avatar—remaining as an interactive persona long after the corporeal, authorial being is gone—reinforces Baudrillard’s concept of simulacra, where a clone exists devoid of its original entity and unable to challenge its automedial discourse. And what if some unscrupulous hacker managed to corrupt and subvert Gutter’s AI so that it responded antithetically to its purpose, by denying the holocaust ever happened? The ethical dilemmas of such a paradigm were explored in the dystopian 2013 film, The Congress, where Robyn Wright plays herself (and her avatar), as an out of work actor who sells off the rights to her digital self. A movie studio exploits her screen persona in perpetuity, enabling audiences to “become” and inhabit her avatar in virtual space while she is limited in the real world from undertaking certain actions due to copyright infringement. The inability of Wright to control her mimetic avatar’s discourse or action means the assumed automedial agency of her virtual self as an immortal, interactive being remains ontologically perplexing.Figure 3: Robyn Wright undergoing a full body photogrammetry to create her VR avatar in The Congress (2013)The various virtual exposures/experiences paraded throughout Catalyst’s “Meet the Avatars” paradoxically recorded and broadcast a range of troubling emotional responses to such immersion. Many participant responses suggest great caution and sensitivity be undertaken before plunging headlong into the new gold rush mentality of virtual reality, augmented reality, and AI affordances. Catalyst depicted their program subjects often responding in discomfort and distress, with some visibly overwhelmed by their encounters and left crying. There is some irony that presenter Ngyuen was himself relying on the conventions of 2D linear television journalism throughout, adopting face-to-camera address in (unconscious) automedial style to excitedly promote the assumed socio-cultural boon such automedial VR avatars will generate.Challenging AuthenticityThere are numerous ethical considerations surrounding the potential for AIs to expand beyond automedial (self-)expression towards photorealist avatars interacting outside of their pre-recorded content. When such systems evolve it may be neigh impossible to discern on screen whether the person you are conversing with is authentic or an indistinguishable, virtual doppelganger. In the future, a variant on the Turning Test may be needed to challenge and identify such hyperreal simulacra. We may be witnessing the precursor to such a dilemma playing out in the arena of audio-only podcasts, with some public intellectuals such as Sam Harris already discussing the legal and ethical problems from technology that can create audio from typed text that convincingly replicate the actual voice of a person by sampling approximately 30 minutes of their original speech (Harris). Such audio manipulation technology will soon be available to anybody with the motivation and relatively minor level of technological ability in order to assume an identity and masquerade as automediated dialogue. However, for the moment, the ability to convincingly alter a real-time computer generated video image of a person remains at the level of scientific innovation.Also of significance is the extent to which the audience reactions to such automediated expressions are indeed empathetic or simply part of the broader range of affective responses that also include direct sympathy as well as emotions such as admiration, surprise, pity, disgust and contempt (see Plantinga). There remains much rhetorical hype surrounding VR as the “ultimate empathy machine” (Milk). Yet the current use of the term “empathy” in VR, AI and automedial forms of communication seems to be principally focused on the capacity for the user-viewer to ameliorate negatively perceived emotions and experiences, whether traumatic or phobic.When considering comments about authenticity here, it is important to be aware of the occasional slippage of technological terminology into the mainstream. For example, the psychological literature does emphasise that patients respond strongly to virtual scenarios, events, and details that appear to be “authentic” (Pertaub, Slater, and Barker). Authentic in this instance implies a resemblance to a corresponding scenario/activity in the real world. This is not simply another word for photorealism, but rather it describes for instance the experimental design of one study in which virtual (AI) audience members in a virtual seminar room designed to treat public speaking anxiety were designed to exhibit “random autonomous behaviours in real-time, such as twitches, blinks, and nods, designed to encourage the illusion of life” (Kwon, Powell and Chalmers 980). The virtual humans in this study are regarded as having greater authenticity than an earlier project on social anxiety (North, North, and Coble) which did not have much visual complexity but did incorporate researcher-triggered audio clips of audience members “laughing, making comments, encouraging the speaker to speak louder or more clearly” (Kwon, Powell, and Chalmers 980). The small movements, randomly cued rather than according to a recognisable pattern, are described by the researchers as creating a sense of authenticity in the VR environment as they seem to correspond to the sorts of random minor movements that actual human audiences in a seminar can be expected to make.Nonetheless, nobody should regard an interaction with these AIs, or the avatar of Gutter, as in any way an encounter with a real person. Rather, the characteristics above function to create a disarming effect and enable the real person-viewer to willingly suspend their disbelief and enter into a pseudo-relationship with the AI; not as if it is an actual relationship, but as if it is a simulation of an actual relationship (USC). Lucy Suchman and colleagues invoke these ideas in an analysis of a YouTube video of some apparently humiliating human interactions with the MIT created AI-robot Mertz. Their analysis contends that, while it may appear on first glance that the humans’ mocking exchange with Mertz are mean-spirited, there is clearly a playfulness and willingness to engage with a form of AI that is essentially continuous with “long-standing assumptions about communication as information processing, and in the robot’s performance evidence for the limits to the mechanical reproduction of interaction as we know it through computational processes” (Suchman, Roberts, and Hird).Thus, it will be important for future work in the area of automediated testimony to consider the extent to which audiences are willing to suspend disbelief and treat the recounted traumatic experience with appropriate gravitas. These questions deserve attention, and not the kind of hype displayed by the current iteration of techno-evangelism. Indeed, some of this resurgent hype has come under scrutiny. From the perspective of VR-based tourism, Janna Thompson has recently argued that “it will never be a substitute for encounters with the real thing” (Thompson). Alyssa K. Loh, for instance, also argues that many of the negatively themed virtual experiences—such as those that drop the viewer into a scene of domestic violence or the location of a terrorist bomb attack—function not to put you in the position of the actual victim but in the position of the general category of domestic violence victim, or bomb attack victim, thus “deindividuating trauma” (Loh).Future work in this area should consider actual audience responses and rely upon mixed-methods research approaches to audience analysis. 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