bluuebunny/crossref_metadata_2025_split huggingface dataset:
Design and characterization of porous poly(glycerol-dodecanedioate) scaffolds for cartilage repair
Authors: Qin Yue , Ramaraju Sriharsha , Hollister Scott J. , Coleman Rhima M. 
Published: March 2023

AbstractSynthetic polymeric scaffolds play an important role in establishing the microenvironment for chondrocytes in engineered cartilage. A three-dimensional pore network allows cell accommodation and supports extracellular matrix (ECM) production by chondrocytes. Ligand coating and biomechanical properties of scaffolds guide regeneration of functional cartilage by mediating cell attachment and establishing the local strain environment. Poly(glycerol-dodecanedioate) (PGD) is a novel biodegradable elastomer with nonlinear-elastic properties similar to native cartilage. However, its harsh curing environments limit the feasibility of common strategies for pore creation in polymeric scaffolds. Herein, we developed porous PGD (pPGD) scaffolds with tailorable pore structures using an inverse molding method and evaluated the range of scaffold structural parameters achievable and their subsequent mechanical properties. The influence of coating PGD with various ECM ligands on the cell shape, metabolic activity, and ECM production of human articular chondrocytes (hACs) was evaluated. pPGD scaffolds were created with pore sizes ranging from 250 – 1000 μm, resulting in 20 – 50% porosity. The morphology and metabolic activity of hACs on PGD were regulated by the type of ligand coating used. When compared to tissue culture plastic, PGD enhanced ECM production in monolayer cultures. Finite element analysis showed that the tensile strains that developed on the pores’ surfaces were at levels shown to be anabolic for hACs. The predicted strain profile varied with pore size and porosity under load, demonstrating that the pore structural parameters could be tuned to optimize cellular-level strains. These results suggest that pPGD scaffolds have the potential to guide cartilage regeneration.Statement of SignificancePrevious studies have established the importance of designing pore geometry and surface properties in engineered cartilage tissue constructs. This work reports the development and assessment of pPGD scaffolds with tunable pore and surface parameters for cartilage regeneration. The cellular-level strain that cells may experience inside the pores was influenced by the scaffolds’ pore geometry. Ligand coating on PGD balanced out the less ideal properties of the material itself and regulated the shape, attachment, metabolic activity, and ECM production of hACs duringin vitroculture. These findings highlight how intelligent design of scaffold parameters can optimize chondrocyte function during 3D culture by tuning ligand presentation and cellular-level strain profiles.
An algorithmic application with flexible airspace approach
Authors: Kökhan Ahmet , Kökhan Serhan , Gökdalay Meriç 
Published: March 2023

Purpose
The purpose of this study is to develop an operational level decision support system model for air traffic controllers (ATCos) within the framework of the Flexible Use of Airspace (FUA) concept to enable more efficient use of airspace capacity. This study produces a systematic solution to the route selection process so that the ATCo can determine the most efficient route with an operational decision support system model using Dijkstra’s Shortest Path Algorithm.

Design/methodology/approach
In this study, a new decision support system model for ATCos in decision-making positions was recommended and used. ATCos use this model as a main model for determining the shortest and safest route for aircraft as an operational-level decision support system. Dijkstra Algorithm, used in the model, is defined step by step and then explained with the pseudocode.

Findings
It has been determined that when the FUA concept and DSS are used while the ATCo chooses a route, significant fuel, time and capacity savings are achieved in flight operations. Emissions resulting from the negative environmental effects of air transportation are reduced, and significant capacity increase can be achieved. The operational level decision support system developed in the study was tested with 55 scenarios on the Ankara–Izmir flight route compared to the existing fixed route. The results for the proposed most efficient route were achieved at 11.22% distance (nm), 9.36%-time (min) savings and 837.71 kg CO2 emission savings.

Originality/value
As far as the literature is reviewed, most studies aimed at increasing airspace efficiency produce solutions that try to improve rather than replace the normal process. Considering the literature positioning of this study compared to other studies, the proposed model provides a new systematic solution to the problems that cause human-induced route inefficiency within the framework of the FUA concept.
Simultaneous UAV having actively sweep angle morphing wing and flight control system design
Authors: Uzun Metin , Oktay Tugrul 
Published: March 2023

Purpose
The purpose of this paper is to improve autonomous flight performance of an unmanned aerial vehicle (UAV) having actively sweep angle morphing wing using simultaneous UAV and flight control system (FCS) design.

Design/methodology/approach
An UAV is remanufactured in the ISTE Unmanned Aerial Vehicle Laboratory. Its wing sweep angle can vary actively during flight. FCS parameters and wing sweep angle are simultaneously designed to optimize autonomous flight performance index using a stochastic optimization method called as simultaneous perturbation stochastic approximation (SPSA). Results obtained are applied for flight simulations.

Findings
Using simultaneous design process of an UAV having actively sweep angle morphing wing and FCS design, autonomous flight performance index is maximized.

Research limitations/implications
Authorization of Directorate General of Civil Aviation in Turkey is crucial for real-time UAV flights.

Practical implications
Simultaneous UAV having actively sweep angle morphing wing and FCS design process is so beneficial for recovering UAV autonomous flight performance index.

Social implications
Simultaneous UAV having actively sweep angle morphing wing and FCS design process achieves confidence, high autonomous performance index and simple service demands of UAV operators.

Originality/value
Composing a novel approach to improve autonomous flight performance index (e.g. less settling and rise time, less overshoot meanwhile trajectory tracking) of an UAV and creating an original procedure carrying out simultaneous UAV having actively sweep angle morphing wing and FCS design idea.
Knowledge transfer and innovation in multinationals: a review of the literature using SCM-TBFO framework
Authors: Singh Shiwangi , Dhir Sanjay 
Published: March 2023

PurposeBusiness research has highlighted the importance of knowledge transfer and innovation in multinational firms for better performance outcomes. However, the existing body of literature is characterized by differentiated theories, antecedents and outcomes. This study aims to address this gap by adopting a systematic approach to analyze knowledge transfer and innovation literature from the perspective of multinational organizations.Design/methodology/approachThis study follows “preferred reporting items for systematic reviews and meta-analyses” (PRISMA) guidelines for conducting a systematic literature review. The study adopts a systematic approach for analyzing the literature using School of thought (S), Contexts (C), Methodologies (M), Triggers (T), Barriers (B), Facilitators (F) and Outcomes (O) framework (SCM-TBFO framework) devised for holistic literature review. The study analyzes 75 articles from reputed journals from 2000 to 2022.FindingsIn general, knowledge transfer and innovation in multinationals is a relatively new area and is evolving rapidly. There are many opportunities to study the various perspectives that are included in the SCM-TBFO framework. The key schools of thought included the evolutionary theory of innovation, institutional theory and internationalization theory. The studies had differing settings or contexts, including China, Europe, the USA and Taiwan. Further, key methodologies that were used included regression, case studies, structural equation modeling (SEM) and theoretical studies. Knowledge transfer and innovation triggers included competitive advantage, competitive pressure, constant requirements for better products and services, foreign direct investment (FDI) and globalization. Knowledge transfer and innovation facilitators were categorized into strategy-related facilitators, organization culture and orientation-related facilitators, and resource-related facilitators. Knowledge transfer and innovation barriers included autonomy, international knowledge dispersion, risk of knowledge leakage, search breadth, ambiguity and institutional voids. Key outcomes of knowledge transfer and innovation in multinationals included financial performance, innovation performance, knowledge flow, transfer effectiveness, patents and new product development.Originality/valueBy synthesizing the literature, the study aims to provide an overview of the current state of research on knowledge transfer and innovation in multinationals. The study develops a holistic model for fostering knowledge transfer and innovation in multinationals. The proposed novel framework can also be applied to perform a holistic assessment of the current literature in various research domains. Further, the study suggests future theory development and research agendas. The study also provides implications for practitioners using the framework to achieve more desirable outcomes.
Arab authorities use digital surveillance to control press freedom: journalists’ perceptions
Authors: AlAshry Miral Sabry 
Published: March 2023

Purpose
The purpose of this study is to investigate the extent of digital surveillance by Arab authorities, which face risks and threats of surveillance, and how journalists seek to press freedom by using tools and techniques to communicate securely.

Design/methodology/approach
The study used focus group discussions with 14 journalists from Syria, Saudi Arabia, Libya, Yemen, Oman, Jordan and Egypt. While in Egypt, questionnaires were distributed to 199 journalists from both independent and semi-governmental outlets to investigate how Egyptian journalists interpret the new data protection law and its implications for press freedom.

Findings
The study indicated that journalists from these countries revealed severe censorship by their respective governments, an element inconsistent with the Arab Constitution. The recommendation of the study encourages media organisations to play a more active role in setting policies that make it easier for journalists to adopt and use digital security tools, while Egyptian journalists see the law as a barrier to media independence because it allows the government to exercise greater information control through digital policy and imposes regulatory rules on journalists.

Practical implications
The study identifies practical and theoretical issues in Arab legislation and may reveal practices of interest to scientists researching the balance between data protection, the right of access to information and media research as an example of contemporary government indirect or “soft” censorship methods.

Originality/value
To the best of the authors’ knowledge, this paper is one of the first research contributions to analyse the relationships between Arab authoritarians who used surveillance to restrict freedom of the press after the Arab Spring revolutions of 2011 to keep themselves in power as long as they could. In addition, Egypt's use of surveillance under new laws allowed the regimes to install software on the journalists’ phones that enabled them to read the files and emails and track their locations; accordingly, journalists can be targeted by the cyberattack and can be arrested.
Do digital platforms promote or hinder corporate brand prestige?
Authors: Tse Sin Yan , Wang Danny T. , Cheung Man Lai , Leung Wilson K.S. 
Published: March 2023

Purpose
In the era of digital evolution, companies are increasingly deploying digital platforms to optimize operational efficiencies and to connect with customers more directly. However, little is known about whether and how companies can leverage digital platforms to enhance their brand prestige. Integrating insights from the resource-based view of the firm into the branding literature, this study aims to compare and distinguish the effects of the two digital platform functions, technical and social functions, on a company’s brand prestige. This study also assesses the moderating roles of two institutional factors, market uncertainty and brand imitation.

Design/methodology/approach
This study estimates a moderated regression model using a survey of 240 companies in China that deploy digital platforms. This study uses SPSS 24.0 to perform regression analysis.

Findings
The study finds that technical functions positively, whereas social functions negatively affect brand prestige. Moreover, the technical functions of digital platforms are more beneficial for companies to build their brand prestige when the market is turbulent and the extent of brand imitation is high, whereas, under the same conditions, social functions lead to lower brand prestige.

Research limitations/implications
There are several limitations of this study that offer future research opportunities. First, due to the difficulties of data collection, measures were taken from the same source for which common method bias could be a potential concern. Second, this study considered two institutional boundary conditions in these models. Future research should consider mediators as well as other potential moderators to understand the underlying mechanisms of how digital platforms affect brand prestige. Third, future studies may develop better constructs to manifest these two types of digital platform functions. Finally, this sample was limited to companies in China.

Practical implications
This study provides important implications for companies leveraging digital platforms to build brands. First, companies must distinguish between the different functions of digital platforms. The findings reveal that companies that leverage digital platforms to build brand prestige are suggested to make greater use of technical functions yet should be cautious in developing social functions. Second, this research suggests although market uncertainty and brand imitation are not conducive to enhancing brand prestige, it is possible for companies to take advantage of these unfavorable environments to better serve niche customers.

Originality/value
Prior marketing studies emphasize the benefits of digital platforms and largely overlook the double-edged sword effect of digital platforms on companies’ brand building. This study contributes to the marketing literature by revealing the benefits of technical function and the challenges of social function in driving brand prestige in complex institutional settings.
Utilization and criticality based fault-tolerant scheduling in multicore mixed critical systems
Authors: Godabole Preeti , Bhole Girish 
Published: March 2023

Purpose
The main purpose of the paper is timing analysis of mixed critical applications on the multicore system to identify an efficient task scheduling mechanism to achieve three main objectives improving schedulability, achieving reliability and minimizing the number of cores used. The rise in transient faults in embedded systems due to the use of low-cost processors has led to the use of fault-tolerant scheduling and mapping techniques.

Design/methodology/approach
The paper opted for a simulation-based study. The simulation of mixed critical applications, like air traffic control systems and synthetic workloads, is carried out using a litmus-real time testbed on an Ubuntu machine. The heuristic algorithms for task allocation based on utilization factors and task criticalities are proposed for partitioned approaches with multiple objectives.

Findings
Both partitioned earliest deadline first (EDF) with the utilization-based heuristic and EDF-virtual deadline (VD) with a criticality-based heuristic for allocation works well, as it schedules the air traffic system with a 98% success ratio (SR) using only three processor cores with transient faults being handled by the active backup of the tasks. With synthetic task loads, the proposed criticality-based heuristic works well with EDF-VD, as the SR is 94%. The validation of the proposed heuristic is done with a global and partitioned approach of scheduling, considering active backups to make the system reliable. There is an improvement in SR by 11% as compared to the global approach and a 17% improvement in comparison with the partitioned fixed-priority approach with only three processor cores being used.

Research limitations/implications
The simulations of mixed critical tasks are carried out on a real-time kernel based on Linux and are generalizable in Linux-based environments.

Practical implications
The rise in transient faults in embedded systems due to the use of low-cost processors has led to the use of fault-tolerant scheduling and mapping techniques.

Originality/value
This paper fulfills an identified need to have multi-objective task scheduling in a mixed critical system. The timing analysis helps to identify performance risks and assess alternative architectures used to achieve reliability in terms of transient faults.
Engaging the customer with augmented reality and employee services to enhance equity and loyalty
Authors: Butt Asad , Ahmad Hassan , Ali Fayaz , Muzaffar Asif , Shafique Muhammad Noman 
Published: March 2023

PurposeThis study aims to understand customer equity and loyalty using augmented reality (AR) and employee services in a physical retail environment. The current study investigated how customers’ experiences with AR-based and employee service affect their satisfaction, equity and loyalty.Design/methodology/approachA conceptual framework was developed by reviewing AR and employee services literature. The Smart PLS-SEM technique was used to test the responses of 620 Chinese respondents empirically.FindingsThe findings provided valuable insights into AR and employee services in a physical retail environment. Customers are more inclined to use AR services in the current business climate.Research limitations/implicationsThis study’s sample was drawn from a single city, with a total of 620 respondents, which may not be a complete representation of China as a whole. As a result, the results may not be generalizable to a single city.Practical implicationsRetail brand managers should emphasize implementing innovative technologies in the physical retail environment to retain and attract customers. Pandemic consumers are opting for innovative technologies as part of their shopping experience due to changes in business models.Originality/valueThe researchers recognized AR and employee services as innovative domains in physical retail stores because they can increase sales, customer equity and loyalty. As a result, the framework results are precious to practitioners interested in implementing such innovative technologies for retail stores.
I do not want to be perfect: investigating generation Z students' personal brands on social media for job seeking
Authors: Trang Nguyen M , McKenna Brad , Cai Wenjie , Morrison Alastair Maclean 
Published: March 2023

PurposeThis research aims to explore generation (Gen) Z's personal branding on social media when job seeking.Design/methodology/approachGen Z students, in their final year of university, were interviewed about personal branding, as well as recruiters and career advisors to gain insights into the recruitment process and expectations of online personal brands. Before interviewing, Gen Z students' LinkedIn profiles were examined, and then fed into the interview process.FindingsUsing impression management theory, the findings show that Gen Z perceive online personal brands as a crucial tool to gain more advantage in job markets. A gap was found between desired and perceived selves in Gen Z's online personal brands. Strategies such as effective self-reflection, authentic communication, self-promotion processes, awareness of risks and constantly controlling digital footprints were suggested to build stronger and more coherent personal brands. Gen Z are in favour of a more dynamic, interactive, work-in-process of authentic personal brands.Originality/valueThis research demonstrates the importance of authentically building online personal branding strategies and tactics to bridge the divide between Gen Z's desired and perceived images in personal branding on social media when job seeking.
Quantum game perspective on green product optimal pricing under emission reduction cooperation of dual-channel supply chain
Authors: Chang Yu-Chung 
Published: March 2023

PurposeFrom the quantum game perspective, this paper aims to study a green product optimal pricing problem of the dual-channel supply chain under the cooperation of the retailer and manufacturer to reduce carbon emissions.Design/methodology/approachThe decentralized and centralized decision-making optimal prices and profits are obtained by establishing the classical and quantum game models. Then the classical game and quantum game are compared.FindingsWhen the quantum entanglement is greater than 0, the selling prices of the quantum model are higher than the classical model. Through theoretical research and numerical analysis results, centralized decision-making is more economical and efficient than decentralized decision-making. Publicity and education on carbon emission reduction for consumers will help consumers accept carbon emission reduction products with slightly higher prices. When the emission reduction increases too fast, the cost of emission reduction will form a significant burden and affect the profits of manufacturers and supply chain systems.Originality/valueFrom the perspective of the quantum game, the author explores the optimal prices of green product and compares them with the classical game.
Strategic pivoting: how organizations can shift attention whatever their size
Authors: Wexler Mark N. , Oberlander Judy 
Published: March 2023

Purpose
Strategic pivoting, the decision to invest in shifting the attention of an organization, is no longer limited to early-stage organizations and entrepreneurs but has, without a discussion of complications, been applied to large corporations and public agencies.

Design/methodology/approach
This conceptual paper defines strategic pivoting, highlights the centrality of pivoting in new and entrepreneurial organizations and critically examines its application as a strategy fostering organizational agility in corporations.

Findings
Pivoting in the corporate context complicates the ease of executing an attention shift by introducing a path-dependent momentum that requires modification of the time horizon, stakeholder strategy and the frequency of pivoting.

Practical implications
This comparative examination of pivoting highlights the importance of organizational size, complexity, degree of specialization and path-dependent history when deciding to pivot.

Originality/value
The present ease with which the strategic pivot is treated as an adaptive strategy to corporate leaders seeking greater flexibility overstates the ease of execution.