scholarly journals Intentional Forgetting in Socio-Digital Work Systems

2019 ◽  
Vol 4 (1) ◽  
Author(s):  
Thomas Ellwart ◽  
Anna-Sophie Ulfert ◽  
Conny Herbert Antoni ◽  
Jörg Becker ◽  
Christian Frings ◽  
...  

Future work environments offer numerous technical applications to manage increasing amounts of information for organizations, teams, and individuals. Psychological concepts of intentional forgetting (IF) can be applied to improve the performance of work systems or to extend cognitive capacities of humans in technical systems. Different IF mechanisms have been suggested for assisting technology-aided IF, such as: (1) filtering of irrelevant or distressful information (e.g., by suppressing, deleting, or selecting), (2) delegating tasks from human to digital agents, changing roles, and reorganizing socio-digital work systems, or (3) systematic (re-)placement of retrieval cues or triggers to generate or suppress behavior. Due to these different underlying IF mechanisms, the implementation of IF at individual, team, and organizational level will differ substantially between work areas or systems. In order to gain a better understanding of how socio-digital applications of IF impact human behavior and reactions, it is necessary to (a) differentiate between relevant characteristics of socio-digital IF systems and (b) gain an understanding of how these characteristics impact users’ attitudes and performance. Thus, the present paper aims to classify and compare these characteristics of different applications of IF and introduces variables and methods to study psychological effects on users’ behavior, experience, and affective reactions.

Sensors ◽  
2021 ◽  
Vol 21 (15) ◽  
pp. 5242
Author(s):  
Jolene Ziyuan Lim ◽  
Alexiaa Sim ◽  
Pui Wah Kong

The aim of this review is to investigate the common wearable devices currently used in field hockey competitions, and to understand the hockey-specific parameters these devices measure. A systematic search was conducted by using three electronic databases and search terms that included field hockey, wearables, accelerometers, inertial sensors, global positioning system (GPS), heart rate monitors, load, performance analysis, player activity profiles, and competitions from the earliest record. The review included 39 studies that used wearable devices during competitions. GPS units were found to be the most common wearable in elite field hockey competitions, followed by heart rate monitors. Wearables in field hockey are mostly used to measure player activity profiles and physiological demands. Inconsistencies in sampling rates and performance bands make comparisons between studies challenging. Nonetheless, this review demonstrated that wearable devices are being used for various applications in field hockey. Researchers, engineers, coaches, and sport scientists can consider using GPS units of higher sampling rates, as well as including additional variables such as skin temperatures and injury associations, to provide a more thorough evaluation of players’ physical and physiological performances. Future work should include goalkeepers and non-elite players who are less studied in the current literature.


2022 ◽  
pp. 105256292110672
Author(s):  
Raj Echambadi ◽  
Arshad Saiyed ◽  
Norma I. Scagnoli ◽  
Madhu Viswanathan

How does an online graduate business program become the fastest growing program in a short span of 5 years, in a category that has been showing constant decline in the last decade? This article takes a retrospective look at the journey from conception to launch and early implementation of an innovative online program at a large public university about half a decade before the pandemic. Extant research about online learning focuses on educational strategies, the changing roles of faculty in a new environment, or students’ satisfaction and performance in online learning programs or courses. This article takes a broad-based view to discuss details on the strategy, design, and development of a disruptive online graduate program built for scale. Given the accelerated transition into remote learning during the COVID-19 pandemic, our journey also has important implications from the forward-looking approach of half a decade ago for how higher education should navigate the digital future.


2020 ◽  
Vol 1 (2) ◽  
pp. 108-118
Author(s):  
I Nengah Aristana ◽  
I Wayan Arta Artana

The development of the business world now requires all forms of business including cooperatives to do various ways to increase productivity and performance. One of the efforts in increasing productivity and performance is by building a high-performance work system. The purpose of this research is to find out the high performance work system in cooperatives. The number of respondents was 132 respondents with factor analysis analysis techniques. From the results of the analysis conducted found three factors as determinants of high performance work systems, namely the method of task delegation, internal planning and motivation.


Author(s):  
Bethany Bracken ◽  
Noa Palmon ◽  
Lee Kellogg ◽  
Seth Elkin-Frankston ◽  
Michael Farry

Many work environments are fraught with highly variable demands on cognitive workload, fluctuating between periods of high operational demand to the point of cognitive overload, to long periods of low workload bordering on boredom. When cognitive workload is not in an optimal range at either end of the spectrum, it can be detrimental to situational awareness and operational readiness, resulting in impaired cognitive functioning (Yerkes and Dodson, 1908). An unobtrusive system to assess the state of the human operator (e.g., stress, cognitive workload) and predict upcoming performance deficits could warn operators when steps should be taken to augment cognitive readiness. This system would also be useful during testing and evaluation (T&E) when new tools and systems are being evaluated for operational use. T&E researchers could accurately evaluate the cognitive and physical demands of these new tools and systems, and the effects they will have on task performance and accuracy. In this paper, we describe an approach to designing such a system that is applicable across environments. First, a suite of sensors is used to perform real-time synchronous data collection in a robust and unobtrusive fashion, and provide a holistic assessment of operators. Second, the best combination of indicators of operator state is extracted, fused, and interpreted. Third, performance deficits are comprehensively predicted, optimizing the likelihood of mission success. Finally, the data are displayed in such a way that supports the information requirements of any user. The approach described here is one we have successfully used in several projects, including modeling cognitive workload in the context of high-tempo, physically demanding environments, and modeling individual and team workload, stress, engagement, and performance while working together on a computerized task. We believe this approach is widely applicable and useful across domains to dramatically improve the mission readiness of human operators, and will improve the design and development of tools available to assist the operator in carrying out mission objectives. A system designed using this approach could enable crew to be aware of impending deficits to aid in augmenting mission performance, and will enable more effective T&E by measuring workload in response to new tools and systems while they are being designed and developed, rather than once they are deployed.


Author(s):  
Kelli L Sullivan ◽  
Paulina A Kulesz ◽  
Steven Paul Woods

Abstract Objective Retrospective and prospective memory deficits are associated with lower quality of life (QoL); however, there are no validated measures that comprehensively and directly assess the impact of memory problems on QoL. The Survey of Memory-Related Quality of Life (SMRQoL) was developed as a 30-item questionnaire to measure memory-related QoL. Method Both HIV+ (n = 195) and HIV− (n = 146) participants completed the SMRQoL, a neurocognitive research battery, and validated self-report questionnaires of memory, QoL, and mood. Participants were recruited into younger (age ≤ 40 years) and older (age ≥ 50 years) groups per the parent study design. Results The SMRQoL had a unidimensional factor structure and demonstrated measurement invariance across the HIV+ and HIV− participants. Analyses of 111 clinically stable participants (e.g., persons with no incident or remitting central nervous system disorders) who returned for a 14-month follow-up visit indicated that the SMRQoL had adequate test–retest stability. There was a significant interaction of age and HIV status on the SMRQoL, such that older HIV+ participants reported the lowest memory-related QoL. SMRQoL scores were associated with validated measures of mental and physical QoL, self-reported memory and cognitive symptoms, and performance-based memory and executive functions. Conclusions The SMRQoL shows evidence of reliability and validity as a measure of memory-related QoL that can be used to assess the impact of memory problems on everyday life, but future work is needed to demonstrate the measure’s incremental value in the context of diagnosis and treatment.


Author(s):  
Mahboobeh Ghesmaty Sangachin ◽  
Lora A. Cavuoto

Obesity is an emerging health problem among the workforce. This review examined the published literature in the last decade presented in prominent human factors and occupational safety and health journals to map out the current state of the research and direct future work. Overall, 44 studies were identified, out of which 27% focused on general effects of obesity on work performance, disability or occupational injury and 73% studied hypotheses regarding the effect of obesity on functional capacity, balance and performance of specific tasks. While over 90% of general studies suggest some significant adverse effect, only ~47% of specific studies report such results. While obesity co- occurs with chronic conditions such as diabetes or cardio-respiratory issues, laboratory based studies which exclude subjects with comorbidities may fail to fully manifest obesity effects. With only four studies identified that investigated an interaction of obesity with other personal or job-related health risks, future research in this regard is warranted.


Author(s):  
Laili Iwani Jusoh ◽  
Erwan Sulaiman ◽  
Rajesh Kumar ◽  
Fatihah Shafiqah Bahrim

This paper presents a new design and performance of single phase permanent magnet flux-switching machine (PMFSM) for electric bicycle application. 8Slot-12Pole design machine were choose by analyzing the highest power density value. All active parts such as permanent magnet and armature coil are located on the stator, while the rotor part consists of only single piece iron. PMFSM have a great advantage with robust rotor structure that make it much higher power and applicable for EV application compared to SRM and IPMSM. The design, operating principles, characteristics of torque, and power of this new topology are investigated by JMAG-Designer via a 2D-FEA. Size of motor and volume of PM is designed at 75mm and 80g, respectively. Based on the investigation, it can be concluded that the proposed topology of single phase 8Slot 12Pole PMFSM achieved the target of highest performance of power density, approximately at 0.113W/mm3 with reduced permanent magnet and size of design motor. Due to the low torque performance of this initial design, further works is ongoing to improve the torque performance. In future work, outer rotor PMFSM structure design will be presented and compared with the “Deterministic Optimization Method” to improve the initial design.


2019 ◽  
Vol 65 ◽  
pp. 101339 ◽  
Author(s):  
Jan Gerard Hoendervanger ◽  
Nico W. Van Yperen ◽  
Mark P. Mobach ◽  
Casper J. Albers

Nanomaterials ◽  
2020 ◽  
Vol 10 (6) ◽  
pp. 1039 ◽  
Author(s):  
Weiqiang Pang ◽  
Xuezhong Fan ◽  
Ke Wang ◽  
Yimin Chao ◽  
Huixiang Xu ◽  
...  

As one of the new types of functional materials, nano-sized composite energetic materials (nano-CEMs) possess many advantages and broad application prospects in the research field of explosives and propellants. The recent progress in the preparation and performance characterization of Al-based nano-CEMs has been reviewed. The preparation methods and properties of Al-based nano-CEMs are emphatically analyzed. Special emphasis is focused on the improved performances of Al-based nano-CEMs, which are different from those of conventional micro-sized composite energetic materials (micro-CEMs), such as thermal decomposition and hazardous properties. The existing problems and challenges for the future work on Al-based nano-CEMs are discussed.


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