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Cross-layer approach in media access control (MAC) layer will address interference and jamming problems. Hybrid distributed MAC can be used for simultaneous voice, data transmissions in wireless sensor network (WSN) and Internet of Things (IoT) applications. Choosing the correct objective function in Nash equilibrium for game theory will address fairness index and resource allocation to the nodes. Game theory optimization for distributed may increase the network performance. The purpose of this study is to survey the various operations that can be carried out using distributive and adaptive MAC protocol. Hill climbing distributed MAC does not need a central coordination system and location-based transmission with neighbor awareness reduces transmission power.

Distributed MAC in wireless networks is used to address the challenges like network lifetime, reduced energy consumption and for improving delay performance. In this paper, a survey is made on various cooperative communications in MAC protocols, optimization techniques used to improve MAC performance in various applications and mathematical approaches involved in game theory optimization for MAC protocol.

Spatial reuse of channel improved by 3%–29%, and multichannel improves throughput by 8% using distributed MAC protocol. Nash equilibrium is found to perform well, which focuses on energy utility in the network by individual players. Fuzzy logic improves channel selection by 17% and secondary users’ involvement by 8%. Cross-layer approach in MAC layer will address interference and jamming problems. Hybrid distributed MAC can be used for simultaneous voice, data transmissions in WSN and IoT applications. Cross-layer and cooperative communication give energy savings of 27% and reduces hop distance by 4.7%. Choosing the correct objective function in Nash equilibrium for game theory will address fairness index and resource allocation to the nodes.

Other optimization techniques can be applied for WSN to analyze the performance.

Game theory optimization for distributed may increase the network performance. Optimal cuckoo search improves throughput by 90% and reduces delay by 91%. Stochastic approaches detect 80% attacks even in 90% malicious nodes.

Channel allocations in centralized or static manner must be based on traffic demands whether dynamic traffic or fluctuated traffic. Usage of multimedia devices also increased which in turn increased the demand for high throughput. Cochannel interference keep on changing or mitigations occur which can be handled by proper resource allocations. Network survival is by efficient usage of valid patis in the network by avoiding transmission failures and time slots’ effective usage.

Literature survey is carried out to find the methods which give better performance.

Known for its motto “All Ages, All Races, All Genders,” MAC cosmetics reflects the brand’s commitment to inclusivity and diversity. It has been at the forefront of promoting a wide range of skin tones, ethnicities and gender identities in the beauty industry. If you have ever wondered about the secret behind the success of this mega-brand in the beauty industry, this case study aims to provide a comprehensive overview of the company’s history from its early days to the present and discusses the factors that might build or ruin a brand. Moreover, players in the industry will need to adapt to changing consumer preferences, focus on sustainability and leverage digital technologies to remain relevant and capture market opportunities. Therefore, would it be wise for MAC cosmetics to take forward their expansion plans in India, and what is the motivation behind the expansion? Alternatively, would the implementation of a proactive strategy for product innovation, combined with a stronger presence, result in a more viable and sustainable proposition?

This study relies on online resources for data collection. The data was collected from the secondary sources in the month of November and December 2022. Moreover, the information provided in the case study was validated and supplemented via using different websites, including the company’s website and social media profiles.

The commitment shown and the roles played will have a lasting impact on the society. Additionally, student will be able to learn when and how to seize opportunities, as well as how to manage obstacles that will arise in their entrepreneurial journey. Through this case study, they will be able to learn a variety of business strategies that can be implemented in emerging markets. The conclusion of the study provides the obstacles and hurdles faced by the industry in expanding in the Indian market. The potential solutions were made through providing information for the students, academicians, entrepreneurs and others to compete in the Indian market situation.

This is a real-world case that provides the audience with first-hand experience to comprehend the event and apply their knowledge to form a conclusion and is also effective for decision-making in the dynamic environment of the present day. However, the authors provide a comprehensive overview of the company’s history from its early days to the present and discuss the factors that might build or ruin a brand.

This study aims to investigate how and why a new management accounting control (MAC) regime emerged in a previously government-owned energy company with a Soviet past in the context of changing politico-economic dynamics in Ukraine.

Drawing upon data from a case study of a large Ukrainian energy company with a Soviet past that has undergone major transformations in recent years, the authors analyze MAC regime changes in the company from an institutional logics perspective. All primary and secondary data used in this study were collected from 2012 to 2016. Retrospective interviews and extensive use of written materials, including corporate documents and other publicly available data, helped them reconstruct those events, which the authors could not observe personally.

The authors observed that MAC regime changes in the company mirror; overall changes in the political and economic environment and Ukraine’s willingness to become closer to the West. The company seems to follow liberal Western market logics and eliminate those of Soviet heritage. The MAC regime changes seemed to contribute to the company’s survival during challenges caused by the political and economic crises that began in 2014 with the annexation of Crimea and other Ukrainian territories in the East of the country, demonstrating the usefulness of the new MAC regime and overall business logic.

This study adds to the literature on management accounting and control change in emerging economies and extractive industries by highlighting the role of changing institutional logics in shaping a MAC regime. The authors explain why, in some contexts (i.e. Ukraine), organizational actors accept and favor liberal Western market logic.

A particularly significant facet of this study concerns its extension of the role of MAC and the way it is perceived in a new international context in times of significant transformation. The results suggest that MAC regime change may be favorably received if it is based on local values and aspirations.

The purpose of this paper is to explore the manager as coach (MAC) role as an organisational development strategy, in particular, aspects of the relationship between manager and employee that make it successful. The purpose of the MAC in the business context is to help employees consider how they might work and behave differently with more effective behaviours that produce better outcomes, without a reliance on the formal authority the manager possesses.

A qualitative case study approach was adopted in which individuals shared their experiences as MAC and/or as an employee receiving coaching from a manager in an asynchronous online discussion forum. These discussions were then qualitatively analysed.

The findings illustrate the complexity of the MAC role and why many managers fail in this role, leading to a loss of engagement and motivation of staff. Similarly, factors, which strengthen the relationship between the MAC and employee, such as trust, shared values, and benevolence lead to success in this organisational relationship.

Managers need to understand how to operate as a MAC to elevate organisational performance. Similarly, organisational developers need to understand what is required in training programs to develop managers into coaches if they are to employ this strategy successfully.

This practitioner oriented paper builds upon a case study, which explores the MAC role and integrates the findings with contemporary knowledge on performance management and coaching.

There are striking similarities between publicly-held government-sponsored enterprises (GSEs) such as Fannie Mae and Freddie Mac and investor-owned public utilities. Each firm enjoys large scale economies that give a significant competitive advantage over other companies, possesses a dominant market position that it may be able to exploit to earn profits above competitive levels, and has a strong incentive to enter new markets when the life cycle of its core markets constrain its ability to increase profits. The recent behavior of Fannie Mae and Freddie Mac indicates that the government must impose more stringent economic regulation on those GSEs in order to be sure that they achieve their public purposes.

Energy is the major concern in wireless sensor networks (WSNs) for most of the applications. There exist many factors for higher energy consumption in WSNs. The purpose of this work is to increase the coverage area maintaining the minimum possible nodes or sensors.

This paper has proposed multilayer (ML) nodes deployment with distributed MAC (DS-MAC) in which nodes listen time is controlled based on communication of neighbors. Game theory optimization helps in addressing path loss constraints while selecting path toward base stations (BS).

The simulation is carried out using NS-2.35, and it shows better performance in ML DS-MAC compared to random topology in DS-MAC with same number of BS. The proposed method improves performance of network in terms of energy consumption, network lifetime and better throughput.

Energy consumption is the major problem in WSNs and for which there exist many reasons, and many approaches are being proposed by researchers based on application in which WSN is used. Node mobility, topology, multitier and ML deployment and path loss constraints are some of the concerns in WSNs.

Game theory is used in different situations like countries whose army race, business firms that are competing, animals generally fighting for prey, political parties competing for vote, penalty kicks for the players in football and so on.

WSNs find applications in surveillance, monitoring, inspections for wild life, sea life, underground pipes and so on.

Game theory optimization helps in addressing path loss constraints while selecting path toward BS.

In the last decade, greater attention has been paid to the role of management accounting and control (MAC) in making professional organizations more horizontal. The authors argue that earlier research has not shown how the interrelatedness between professional identities and MAC influences attempts to make organizations more horizontal. In this paper the authors respond to the call for more research on the relationship between horizontalization and accounting and control. The purpose of this paper is to contribute to the emerging literature on the relationship between accountability arrangements and professional identities.

Theoretically the authors have an actor-network theory (ANT) approach. Empirically, the authors followed two episodes where actors at top management levels in two Swedish health care organizations introduced horizontalization.

The two episodes support the view that the role of MAC when making professional organizations more horizontal is limited. Professionals dominate what happens at the operational level and they do not act on MAC rules and performance targets in opposition of their professional identity. However, in alliance with other interessement devices MAC may have a role in creating overflows, that is, pointing out imperfections in the existing frame. The authors noticed no signs that professionals developed hybrid identities as in previous research.

The authors apply ANT to move beyond the commonly used contingency and new institutional sociology perspectives.

IEEE 802.15.4 is a new standard uniquely designed for low‐rate wireless sensor networks (WSNs). It targets low data rate, low power consumption and low‐cost wireless networking, and offers device level wireless connectivity. The purpose of this paper is to propose a traffic adaptive power control algorithm for beacon relayed distributed WSNs.

A general coordinated sleeping algorithm and the traffic adaptive algorithm are combined in an IEEE 802.15.4 MAC protocol to achieve high‐energy efficiency and high performance at the same time.

By observing the sporadic traffic and beacon relaying characteristics of WSNs, the paper proposes a traffic‐adaptive IEEE 802.15.4 MAC with a coordinated sleeping algorithm. Based on various performance studies, it was found that the proposed algorithm can significantly improve power consumptions in wireless sensor networks.

The paper is of value in proposing a traffic adaptive power control algorithm showing highly efficient power consumptions in low‐traffic conditions as well as with an acceptable degree of adaptation to high‐traffic conditions. In delay performance, it shows longer delay performance compared with other schemes because of the beacon relay procedure while the proposed algorithm reduces the power consumptions dramatically.

This chapter focuses on the challenges that the Malaysian AIDS council (MAC) have been facing in creating the social awareness. Moreover, this chapter briefly discusses the HIV epidemic in Malaysian context. The harm reduction and prevention campaigns as well as the intervention programs taken by MAC are then highlighted. Finally, the challenges associated with implementing such programs are also discussed.

Building supply chain (SC) resilience has become a priority for many organizations, following a global increase in disruptive events. While management accounting and control (MAC) systems play a supportive role in supply chain management (SCM) decisions, little is known about the contributions offered to resilience decisions in service organizations. The purpose of this study is to examine the performance implications of MCS's impact on proactive and reactive resilience of healthcare supply chains.

This study conducted a survey of 127 public health managers via structural equation modeling. The partial least squares version 3.3.3 was used.

The results show a statistically positive impact of MAC dimensions on proactive and reactive resilience, which in turn impacts the quality, delivery speed and cost effectiveness of the health SC. However, the integration dimension had an insignificant effect on reactive resilience but a positive effect on proactive resilience.

This study examined the performance implications of MAC system dimensions and proactive and reactive resilience on operational performance in health SCs, using empirical data from only one country. Thus, generalizing the findings to include other jurisdictions may be impossible.

Healthcare managers in public health facilities should embrace the four MAC dimensions (except the integrated dimension in reactive resilience) to support information generation in SC resilience decisions.

Perhaps, the first to provide preliminary empirical evidence on the interactive effect of proactive and reactive resilience and MAC dimensions in terms of broad scope, timeliness, integration and aggregation on health SC operational performance under disruption, in the context of an emerging economy.