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1 – 9 of 9Ting Zhou, Yingjie Wei, Jian Niu and Yuxin Jie
Metaheuristic algorithms based on biology, evolutionary theory and physical principles, have been widely developed for complex global optimization. This paper aims to present a…
Abstract
Purpose
Metaheuristic algorithms based on biology, evolutionary theory and physical principles, have been widely developed for complex global optimization. This paper aims to present a new hybrid optimization algorithm that combines the characteristics of biogeography-based optimization (BBO), invasive weed optimization (IWO) and genetic algorithms (GAs).
Design/methodology/approach
The significant difference between the new algorithm and original optimizers is a periodic selection scheme for offspring. The selection criterion is a function of cyclic discharge and the fitness of populations. It differs from traditional optimization methods where the elite always gains advantages. With this method, fitter populations may still be rejected, while poorer ones might be likely retained. The selection scheme is applied to help escape from local optima and maintain solution diversity.
Findings
The efficiency of the proposed method is tested on 13 high-dimensional, nonlinear benchmark functions and a homogenous slope stability problem. The results of the benchmark function show that the new method performs well in terms of accuracy and solution diversity. The algorithm converges with a magnitude of 10-4, compared to 102 in BBO and 10-2 in IWO. In the slope stability problem, the safety factor acquired by the analogy of slope erosion (ASE) is closer to the recommended value.
Originality/value
This paper introduces a periodic selection strategy and constructs a hybrid optimizer, which enhances the global exploration capacity of metaheuristic algorithms.
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This study aims to examine Musina municipality’s tourism development status and plans with existing documents and respondents’ responses on their envisaged implications on tourism…
Abstract
Purpose
This study aims to examine Musina municipality’s tourism development status and plans with existing documents and respondents’ responses on their envisaged implications on tourism development and sustainability initiatives in Vhembe District, Limpopo Province, South Africa.
Design/methodology/approach
Surveys, interviews and focus group discussions, supplemented by field observation and document reviews, gray literature alongside published literature, were applied. Subsequently, Microsoft Excel and cross-tabulation analysis orchestrated the analysis of the data.
Findings
The policy and strategy aspects contributing to the previous and actual tourism statuses in Musina municipality are defined. The study concludes that Musina Municipality has rich tourism possibilities but lacks a better tourism strategy to empower local communities. Nonetheless, it dwells in the most tourism-based landscape within the Vhembe District of Limpopo.
Originality/value
Musina Municipality is one of the driest areas in the north of Limpopo Province in South Africa. It is also marked by impoverished rural communities. Studies on sustainable tourism and development have increased in recent years. However, rare studies specialize in synergies within various forms of tourism. Also, significant resources to advance local communities in rural areas are not sufficiently appreciated.
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Piotr Rogala, Piotr Kafel and Inga Lapina
The study aims to determine whether audited organizations experience differences between external audits and official controls.
Abstract
Purpose
The study aims to determine whether audited organizations experience differences between external audits and official controls.
Design/methodology/approach
A survey among 100 organic food producers was conducted to explore differences regarding the usability of external audits and official controls. The survey was conducted in 2020 using the computer-assisted telephone interview (CATI) method supplemented by the computer-assisted web interview (CAWI) method. Organizations processing organic farming products in Poland were chosen for the study.
Findings
Three primary benefits associated with external audits and official controls were identified, i.e. (1) enabling and initiating activities related to the improvement of the organization, (2) improving the financial performance of the organization and (3) enhancing credibility. For most organizations, the assessment of these features was at the same level for both external audits and official control. However, if these assessments differed, commercial audits were assessed at a higher level than official controls.
Research limitations/implications
The study is limited to only one specific type of manufacturing organization and one European country.
Originality/value
The literature review shows some conceptual differences between audits and official controls, but the results of this study show that the business environment does not perceive these differences as significant. Thus, the value of the study is reflected in the conclusion that both external audits and official controls are considered useful and credible approaches to monitoring the quality within the organization, which allows us to state that external evaluation is generally seen as an opportunity to improve the performance of the organization.
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Gamal Elsamanoudy, Naglaa Sami Abdelaziz Mahmoud and Platon Alexiou
This paper argues that cultures with the same climate have similar handicrafts as they have similar cultivation and identical raw materials. This study focuses on how mountainous…
Abstract
Purpose
This paper argues that cultures with the same climate have similar handicrafts as they have similar cultivation and identical raw materials. This study focuses on how mountainous, coastal and hot regions partaking in similar crafts and cultural heritage use palm leaves and analyses the resulting handicrafts' similarities.
Design/methodology/approach
A review of mapping these samples establishes this similarity in the traditional industries of some civilizations' cultural heritage from countries sharing similar climates.
Findings
The handwoven crafts using palm leaves were significant patrimonial artifacts in different societies' and communities' cultural heritage. Our studies revealed that climate plays an active role in influencing all aspects of humanity’s life. It affects the construction methods and style, agriculture and lifestyles.
Research limitations/implications
Traditional handwoven palm leaf product models, especially plates and baskets, are studied from South America, Africa, Gulf Countries and Asia.
Practical implications
Additionally, this paper focuses on preserving these treasures as an essential part of interior elements as accessories for most inhabitants of these areas.
Social implications
Cultural heritage also embraces intangible aspects such as skills passed down through generations within a particular society. The tangible and intangible elements complement each other and contribute to an overall legacy.
Originality/value
Cultural heritage reflects a society’s way of life carried down through the years across lands, items, customs and aesthetic concepts. People are the gatekeepers of society, as they preserve their way of life for future generations to emulate. Tangible artistic and cultural heritage comprises artifacts. It comprises all human evidence and expressions, such as traditional handicrafts, pictures, documents, books and manuscripts.
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Richard Robertson, Athanasios Petsakos, Chun Song, Nicola Cenacchi and Elisabetta Gotor
The choice of crops to produce at a location depends to a large degree on the climate. As the climate changes and food demand evolves, farmers may need to produce a different mix…
Abstract
Purpose
The choice of crops to produce at a location depends to a large degree on the climate. As the climate changes and food demand evolves, farmers may need to produce a different mix of crops. This study assesses how much cropland may be subject to such upheavals at the global scale, and then focuses on China as a case study to examine how spatial heterogeneity informs different contexts for adaptation within a country.
Design/methodology/approach
A global agricultural economic model is linked to a cropland allocation algorithm to generate maps of cropland distribution under historical and future conditions. The mix of crops at each location is examined to determine whether it is likely to experience a major shift.
Findings
Two-thirds of rainfed cropland and half of irrigated cropland are likely to experience substantial upheaval of some kind.
Originality/value
This analysis helps establish a global context for the local changes that producers might face under future climate and socioeconomic changes. The scale of the challenge means that the agricultural sector needs to prepare for these widespread and diverse upheavals.
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Wagner De Souza Tavares and Rani Uli Silitonga
Phonecards were largely used in African countries for telephone services. They have been collected by people around the world as a hobby. Images from several themes were printed…
Abstract
Purpose
Phonecards were largely used in African countries for telephone services. They have been collected by people around the world as a hobby. Images from several themes were printed in phonecards, including insects (beetles, butterflies, dragonflies, etc.). We hypothesized that the display of butterfly images in phonecards aimed to arise issues associated with butterfly endangerment and conservation status by protecting their natural habitat and/or butterfly beautifulness, and that they present “extinct” or “threatened” conservation status classification. The purpose of this study is to describe how butterfly images were used in African phonecards; to identify the butterfly species name through their images and information available in all African phonecards; and to record the most recent known geographical distribution and conservation status of butterflies.
Design/methodology/approach
Colnect database was assessed to identify all butterfly-themed African phonecards. International Union for Conservation of Nature database was also assessed to obtain information on the most recent known geographical distribution and conservation status of butterflies.
Findings
The species name of butterflies was identified from 6 out of 18 African phonecards. The most recent known geographical distribution of butterflies was wide across Africa and conservation status of most genera is classified as “least concern”.
Originality/value
The display of butterfly images in African phonecards is mostly associated with their beautifulness and least related with butterfly conservation, protection and endangerment status.
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Anthony Tibaingana, Kasimu Sendawula, Faisal Buyinza, Saadat Nakyejwe Lubowa Kimuli, Emmanuel Ssemuyaga, Catherine Tumusiime, Ronny Mulongo and Rita Atukwasa
The purpose of this study is to establish whether all the dimensions of entrepreneurship skills matter for sustainable business start-up among the youths, using evidence from a…
Abstract
Purpose
The purpose of this study is to establish whether all the dimensions of entrepreneurship skills matter for sustainable business start-up among the youths, using evidence from a developing economy.
Design/methodology/approach
This was cross-sectional study which utilized a quantitative approach. Data were collected using a self-administered questionnaire from 254 youths who undertook skills training at the various government-supported business skills training centers in the Greater Kampala Metropolitan Area (GKMA), that is to say, Kampala, Mukono and Wakiso. Data collected were analyzed using the Statistical Package for the Social Sciences (SPSS) to derive descriptive, correlational and hierarchical regression.
Findings
Study findings indicate that unlike entrepreneurial skills, management, technical and personal maturity skills matter for the sustainability of business start-up of youths in Uganda. However, when all skills are compared, management skills matter most as compared to technical and personal maturity skills.
Originality/value
This study strengthens the existing literature on the sustainable business start-up of youths in Uganda. It is also relevant for policy decision-making and policy reversal because it demonstrates that skilling is pertinent and should be encouraged and rolled out across the country to encourage sustainable youth business start-ups. To increase sustainable business start-up among youths, management skills should be prioritized, together with technical and personal maturity skills, compared to entrepreneurial skills, which should only be emphasized at the idea generation, planning, resource mobilization and business implementation stages.
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P. Ravi Kiran, Akriti Chaubey and Rajesh Kumar Shastri
In this research paper, the authors delve into the ethnography and socioeconomic status of the Chenchu tribal community that resides in Telangana's Nallamalla forest. The authors…
Abstract
Purpose
In this research paper, the authors delve into the ethnography and socioeconomic status of the Chenchu tribal community that resides in Telangana's Nallamalla forest. The authors also examine the initiatives undertaken by the government to create fair entrepreneurial opportunities while preserving their unique culture. Additionally, the authors analyse potential entrepreneurial and business opportunities using the environmental, social and governance (ESG) framework.
Design/methodology/approach
To gain insight into the current socio-economic development and living standards of the Chenchu tribal people, the authors conducted interviews in nine different villages with 177 individual respondents. Statistical analysis was then used to determine the relationship between business opportunities and their impact on socio-economic development based on the data collected.
Findings
The Chenchu tribal community has faced significant challenges, including vulnerability, poverty and debt. To promote the development of the tribe, it is essential to provide equal opportunities in education, healthcare and means of subsistence. The government has implemented various social and developmental programs to support sustainable development and entrepreneurial opportunities while preserving the tribe's unique culture and improving their education and standard of living. These initiatives are aimed at benefiting the entire community.
Practical implications
The Chenchu tribal people are eager for progress but hesitant to leave their forest homes and integrate into modern society. This creates challenges for efficiently implementing welfare programs. It is crucial to strike a balance between forest regulations and the rights of indigenous communities to ensure their protection and prevent any hindrance to development efforts.
Originality/value
To promote sustainable development and preserve tribal cultures, the government should implement various social and developmental programs. These programs should improve living conditions and socioeconomic development while exploring business opportunities. Maintaining these communities' unique identities while striving for progress is essential.
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Hanuman Reddy N., Amit Lathigara, Rajanikanth Aluvalu and Uma Maheswari V.
Cloud computing (CC) refers to the usage of virtualization technology to share computing resources through the internet. Task scheduling (TS) is used to assign computational…
Abstract
Purpose
Cloud computing (CC) refers to the usage of virtualization technology to share computing resources through the internet. Task scheduling (TS) is used to assign computational resources to requests that have a high volume of pending processing. CC relies on load balancing to ensure that resources like servers and virtual machines (VMs) running on real servers share the same amount of load. VMs are an important part of virtualization, where physical servers are transformed into VM and act as physical servers during the process. It is possible that a user’s request or data transmission in a cloud data centre may be the reason for the VM to be under or overloaded with data.
Design/methodology/approach
VMs are an important part of virtualization, where physical servers are transformed into VM and act as physical servers during the process. It is possible that a user’s request or data transmission in a cloud data centre may be the reason for the VM to be under or overloaded with data. With a large number of VM or jobs, this method has a long makespan and is very difficult. A new idea to cloud loads without decreasing implementation time or resource consumption is therefore encouraged. Equilibrium optimization is used to cluster the VM into underloaded and overloaded VMs initially in this research. Underloading VMs is used to improve load balance and resource utilization in the second stage. The hybrid algorithm of BAT and the artificial bee colony (ABC) helps with TS using a multi-objective-based system. The VM manager performs VM migration decisions to provide load balance among physical machines (PMs). When a PM is overburdened and another PM is underburdened, the decision to migrate VMs is made based on the appropriate conditions. Balanced load and reduced energy usage in PMs are achieved in the former case. Manta ray foraging (MRF) is used to migrate VMs, and its decisions are based on a variety of factors.
Findings
The proposed approach provides the best possible scheduling for both VMs and PMs. To complete the task, improved whale optimization algorithm for Cloud TS has 42 s of completion time, enhanced multi-verse optimizer has 48 s, hybrid electro search with a genetic algorithm has 50 s, adaptive benefit factor-based symbiotic organisms search has 38 s and, finally, the proposed model has 30 s, which shows better performance of the proposed model.
Originality/value
User’s request or data transmission in a cloud data centre may cause the VMs to be under or overloaded with data. To identify the load on VM, initially EQ algorithm is used for clustering process. To figure out how well the proposed method works when the system is very busy by implementing hybrid algorithm called BAT–ABC. After the TS process, VM migration is occurred at the final stage, where optimal VM is identified by using MRF algorithm. The experimental analysis is carried out by using various metrics such as execution time, transmission time, makespan for various iterations, resource utilization and load fairness. With its system load, the metric gives load fairness. How load fairness is worked out depends on how long each task takes to do. It has been added that a cloud system may be able to achieve more load fairness if tasks take less time to finish.
Details