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1 – 10 of over 1000Muhammad Yasir Faheem, Shun'an Zhong, Muhammad Basit Azeem and Xinghua Wang
Successive Approximation Register-Analog to Digital Converter (SAR-ADC) has been achieved notable technological advancement since the past couple of decades. However, it’s not…
Abstract
Purpose
Successive Approximation Register-Analog to Digital Converter (SAR-ADC) has been achieved notable technological advancement since the past couple of decades. However, it’s not accurate in terms of size, energy, and time consumption. Many projects proposed to make it energy efficient and time-efficient. Such designs are unable to deliver two parallel outputs.
Design/methodology/approach
To this end, this study introduced an ultra-low-power circuitry for the two blocks (bootstrap and comparator) of 11-bit SAR-ADC. The bootstrap has three sub-parts: back-bone, left-wing and right-wing, named as bat-bootstrap. The comparator block has a circuitry of the two comparators and an amplifier, named as comp-lifier. In a bat-bootstrap, the authors plant two capacitors in the back-bone block to avoid the patristic capacitance. The switching system of the proposed design highly synchronized with the short pulses of the clocks for high accuracy. This study simulates the proposed circuits using a built-in Cadence 90 nm Complementary Metal Oxide Semiconductor library.
Findings
The results suggested that the response time of two bat-bootstrap wings and comp-lifier are 80 ns, 120 ns, and 90 ns, respectively. The supply voltage is 0.7 V, wherever the power consumption of bat-bootstrap, comp-lifier and SAR-ADC are 0.3561µW, 0.257µW and 35.76µW, respectively. Signal to Noise and Distortion Ratio is 65 dB with 5 MHz frequency and 25 KS/s sampling rate. The input referred noise of the amplifier and two comparators are 98µVrms, 224µVrms and 224µVrms, respectively.
Originality/value
Two basic circuit blocks for SAR-ADC are introduced, which fulfill the duality approach and delivered two outputs with highly synchronized clock pulses. The circuit sharing concept introduced for the high performance SAR-ADCs.
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Eduardo André Cândido Da Silva, Flávio Santino Bizarrias, Renato Penha, Luciano Ferreira da Silva and Cristiane Drebes Pedron
Despite the significant interest from researchers and practitioners, the literature on project value measurement from the perspective of the customer is non-existent. This study…
Abstract
Purpose
Despite the significant interest from researchers and practitioners, the literature on project value measurement from the perspective of the customer is non-existent. This study aims to address this gap by developing and validating a scale to measure project value through a customer lens called the customer perception of project value scale.
Design/methodology/approach
A list of items was initially generated based on 762 sample responses through a systematic review of the literature and with the participation of specialists. Exploratory and confirmatory factorial analyses and structural equation modelling were used to develop and validate the scale.
Findings
The authors formulated a four-dimension scale. The dimensions used to measure the second-order construct are customer centrality, process, delivery and cost-benefit. This was validated using a nomological structure.
Research limitations/implications
The non-consensual nature of what is value in projects restricts the results of this study to the context of a specific group of stakeholders only, that is, the consumers of the projects. The authors also see limitations in the absence of competing scales, which do not allow the comparison of the instrument with alternative measures.
Practical implications
This study allows project managers and other professionals to measure a project’s perceived value from the customer’s point of view and manage the improvement of this perception.
Originality/value
To the best of the authors’ knowledge, this is the first study to propose a scale to measure project value, which advances the literature on project management and value and contributes to academic knowledge and practice by measuring project value from the customer standpoint.
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Chapter 2 offers examples of colonial and neocolonial working throughout history. This chapter defines and provides an overview of colonialism’s development and its economic and…
Abstract
Chapter 2 offers examples of colonial and neocolonial working throughout history. This chapter defines and provides an overview of colonialism’s development and its economic and administrative roots. This chapter is intended to contextualize colonialism rather than explain its complete history.
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In this chapter, I present a concept named Diversity Icebreaker® where the participants in a seminar are categorized along red, blue, and green dimensions based on a psychological…
Abstract
In this chapter, I present a concept named Diversity Icebreaker® where the participants in a seminar are categorized along red, blue, and green dimensions based on a psychological assessment. The participants co-create the meaning of the dimensions in mono-colored groups due to their dominant scores where they describe themselves and others from inside and outside perspectives. Blue is more task and detail oriented. Green is more holistic and future oriented. Red is more social and communicative oriented. The language as a metaphorical structure as well as the seminar builds a culture of inclusivity. The simplicity and easiness of mastery of the categories make it easy for everyone to apply the categories. The social co-creation of the categories makes every participant at an even level. The colors are defined reciprocally strengthening the needs of the others. Everyone has all colors which makes it easier to connect and see commonalities that build cohesion. In the seminar, participants experience uncertainty followed by dialogues with others. Positive emotions and insight reinforce the script of “dialoguing with others when uncertainties arise.” The positivity and humor in the seminar reinforce the behavior of being together. The closure is a collective reflexivity process where all participants have even possibility to contribute due to their unique perspectives on their shared experience. I end this chapter with reflections and questions on leadership models in this seminar that has evolved in a Norwegian context and their relevance in a global context.
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Namita Jain, Vikas Gupta, Valerio Temperini, Dirk Meissner and Eugenio D’angelo
This paper aims to provide insight into the evolving relationship between humans and machines, understanding its multifaceted impact on our lifestyle and landscape in the past as…
Abstract
Purpose
This paper aims to provide insight into the evolving relationship between humans and machines, understanding its multifaceted impact on our lifestyle and landscape in the past as well as in the present, with implications for the near future. It uses bibliometric analysis combined with a systematic literature review to identify themes, trace historical developments and offer a direction for future human–machine interactions (HMIs).
Design/methodology/approach
To provide thorough coverage of publications from the previous four decades, the first section presents a text-based cluster bibliometric analysis based on 305 articles from 2,293 initial papers in the Scopus and Web of Science databases produced between 1984 and 2022. The authors used VOS viewer software to identify the most prominent themes through cluster identification. This paper presents a systematic literature review of 63 qualified papers using the PRISMA framework.
Findings
Next, the systematic literature review and bibliometric analysis revealed four major historical themes and future directions. The results highlight four major research themes for the future: from Taylorism to advanced technologies; machine learning and innovation; Industry 4.0, Society 5.0 and cyber–physical system; and psychology and emotions.
Research limitations/implications
There is growing anxiety among humankind that in the future, machines will overtake humans to replace them in various roles. The current study investigates the evolution of HMIs from their historical roots to Society 5.0, which is understood to be a human-centred society. It balances economic advancement with the resolution of social problems through a system that radically integrates cyberspace and physical space. This paper contributes to research and current limited knowledge by identifying relevant themes and offering scope for future research directions. A close look at the analysis posits that humans and machines complement each other in various roles. Machines reduce the mechanical work of human beings, bringing the elements of humanism and compassion to mechanical tasks. However, in the future, smart innovations may yield machines with unmatched dexterity and capability unthinkable today.
Originality/value
This paper attempts to explore the ambiguous and dynamic relationships between humans and machines. The present study combines systematic review and bibliometric analysis to identify prominent trends and themes. This provides a more robust and systematic encapsulation of this evolution and interaction, from Taylorism to Society 5.0. The principles of Taylorism are extended and redefined in the context of HMIs, especially advanced technologies.
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I take as a starting point the disparaging comments about the place of history and philosophy of education in initial teacher education (ITE) made by the chair of the Teacher…
Abstract
Purpose
I take as a starting point the disparaging comments about the place of history and philosophy of education in initial teacher education (ITE) made by the chair of the Teacher Education Expert Panel established by the Australian Government in 2023, which I take to be the most recent attempt at resurrecting the tired debate over “the art versus science of teaching”. I draw on an example from my own ITE classroom to tease possibilities for how historical research and research in the sciences of learning can be in dialogue and collaborate to deepen educational scholarship.
Design/methodology/approach
The purpose of this essay is to reflect on the scholarly discussions and debates in the sciences of learning that historical researchers of education have largely been absent or excluded from. I argue that historical researchers have an important role to play as “critical friends” to the burgeoning fields of cognitive science and educational neuroscience.
Findings
From my cursory and singular account, I highlight two key areas of education where historical research and the sciences of learning can be fruitfully in dialogue and collaboration: Firstly, on the cultural dimension that prefigures learners' approach to learning; and secondly, on the factors that enable or disable effective learning.
Originality/value
This essay sets an agenda for historical researchers in education to exercise “critical friendship” with the cognitive and brain sciences of learning, specifically by adding temporal considerations to the way biology, psychology, and sociality interact to produce different educational outcomes. This will be of “practical” service to ITE – and to students in schools.
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Rambabu Lavuri, Jaspreet Kaur and Park Thaichon
This study examines intrinsic motivations and antecedents that affect millennial mobile impulsive shopping in markets with the technology acceptance model (TAM) during the…
Abstract
Purpose
This study examines intrinsic motivations and antecedents that affect millennial mobile impulsive shopping in markets with the technology acceptance model (TAM) during the COVID-19 pandemic.
Design/methodology/approach
The study has been conducted by collecting data from 367 regular mobile shopping millennials, which was analyzed by structural equation modeling.
Findings
The findings reported that the perceived ease of use correlates positively with perceived usefulness. Similarly, perceived ease of use, usefulness, perceived utilitarian value and hedonic value significantly impacts shoppers' trust and attitude toward impulsive mobile shopping. Perceived trust was found to exhibit a positive association with mobile shopping. Finally, perceived usefulness, ease of use, utilitarian value, hedonic value, trust and attitude significantly positively impacted millennials' impulsive mobile shopping.
Practical implications
This study's results will help e-retailers establish novel techniques and efforts to enhance market volume and build solid connections with mobile customers by ensuring secure purchase habits. The results would also help companies develop customer satisfaction-focused business strategies.
Originality/value
This study contributes to the body of literature by finding a significant impact of attitude, trust and shopping values on impulsive mobile shopping. These constructs have not been explored as factors impacting mobile impulsive shopping, especially when it comes to a pandemic.
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Despite the growing number of cashierless stores, few studies have examined the factors that influence the success of such stores. This paper aims to identify the influence of…
Abstract
Purpose
Despite the growing number of cashierless stores, few studies have examined the factors that influence the success of such stores. This paper aims to identify the influence of store attributes in customers’ affective attitudes regarding cashierless stores and to understand how customers’ need for interaction and risk reduction affect the relationship between customer experiences and evaluation.
Design/methodology/approach
Quantitative research is conducted using a partial least squares structural equation model. Data was collected from 174 customers with cashierless store experience.
Findings
The results identify the influence of hedonic and utilitarian characteristics on affective attitudes and the impact of attitudes on behavioral intentions. Also, multigroup analysis reveals that hedonic features are stronger indicators of customer attitudes among those with a low need for interaction, whereas utilitarian attributes are more important among customers with a low need for risk reduction. Customers’ affective attitudes are stronger influences on behavioral intentions among members of customer groups with a low need for both interaction and risk reduction.
Originality/value
To add to the limited research in customers’ experience with unstaffed stores, this study provides useful insights to achieve sustainable growth in the retailing context. Managerial considerations suggest that operators of cashierless stores should design store environments to guarantee customers’ purchasing and recommendation intentions.
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Xingchen Zhou, Pei-Luen Patrick Rau and Zhuoni Jie
This study aims to reveal how mobile app stickiness is formed and how the stickiness formation process differs for apps of different social levels.
Abstract
Purpose
This study aims to reveal how mobile app stickiness is formed and how the stickiness formation process differs for apps of different social levels.
Design/methodology/approach
This study proposed and validated a stickiness formation model following the cognitive–affective–conative framework. Data were collected from surveys of 1,240 mobile app users and analyzed using structural equation modeling. Multigroup analysis was applied to contrast the stickiness formation process among apps of different social levels.
Findings
This study revealed a causal link between cognitive, affective and conative factors. It found partial mediation effects of trust in the association between perceptions and satisfaction, and the full mediation role of satisfaction and personal investment (PI) in the effects of subjective norm (SN) on stickiness. The multigroup analysis results suggested that social media affordances benefit stickiness through increased PI and strengthened effects of SN on PI. However, it damages stickiness through increased perceived privacy risk (PPR), decreased trust and strengthened effects of PPR on trust.
Originality/value
This study contributes to both stickiness scholars and practitioners, as it builds a model to understand the stickiness formation process and reveals the effects of the “go social” strategy. The novelty of this study is that it examined social influences, considered privacy issues and revealed two mediation mechanisms. The findings can guide the improvement of mobile app stickiness and the application of the “go social” strategy.
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Karen Jingrong Lin, Khondkar Karim, Rui Hu and Shaymus Dunn
This study investigates whether and how chief executive officers (CEOs) with personal risk-taking preference (expressed in owning a pilot license) will act differently when they…
Abstract
Purpose
This study investigates whether and how chief executive officers (CEOs) with personal risk-taking preference (expressed in owning a pilot license) will act differently when they are vested with additional power serving as board chairs.
Design/methodology/approach
Regressions analyses are performed using a sample of Standard and Poor’s (S&P) 1,500 firms with available data during 1996–2009. CEO's risk-taking outcomes are measured using firms' total risk, idiosyncratic risk and research and development expenditures (R&D) investment.
Findings
Firms led by pilot CEOs have greater firm risks, yet CEO duality attenuates the relationship. Further channel tests show that CEO duality suppresses CEO's risk-taking tendencies through managers' reputation concerns.
Research limitations/implications
The findings highlight the importance of incorporating human factors into consideration of appropriate governance structures for a firm. Future studies can expand the existing data and further explore the relationship between human factors and governance structures on other firm strategies.
Practical implications
Regulators may focus mainly on regulatory setting based on the “best practice” of governance yet overlook human influence in corporate dynamics. For shareholders, hiring managers with distinct styles will change corporate outcomes but different governance mechanisms could be devised to adapt to CEOs with various personalities.
Originality/value
Prior studies show that both CEO personal preferences and firms' governance structure affect corporate policies, and this paper complements prior studies by exploring how the two may interact to shape corporate policy and its outcomes. This paper also adds to the literature showing that CEO duality could serve a disciplinary role.
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