Papers by Elizabeth Katta
Sustainability, 2021
This research reports the role of disaster policy implementation achieving disaster risk reductio... more This research reports the role of disaster policy implementation achieving disaster risk reduction (DRR) and sustainable development (SD) in Sierra Leone. The factors were highlighted to help policymakers measure disaster risk perception (DRP), disaster adaptation (DA), community participation (CP), and disaster policy implementation (DPI) towards achieving disaster risk reduction and sustainable development. A questionnaire was administered to collect data from the respondents in six disaster-prone communities (Dwarzarck, Portee-Rokupa, Kroobay, Susan’s Bay, Moyiba, and Colbot) in Freetown, Sierra Leone. Employing the structural equation model approach, we found that all the disaster risk reduction factors (DRP, CP, DA, and DPI) directly influence SD. Furthermore, disaster policy implementation serves as a channel through which disaster risk reduction influences sustainable development. This study suggests to policymakers to use the factors mentioned earlier to design effective dis...
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Medical Images generally exhibits high level artefacts called noise. De-noising a medical image i... more Medical Images generally exhibits high level artefacts called noise. De-noising a medical image is essential in medical field. Transmitting medical image over the internet needs to be compressed and also remove noise to produce excellent result that can be easily viewed and interpreted by medical professionals. Wavelet transform enhances the superiority of an image and reduces noise level that is been transmitted. The image to be process is loaded and decomposed into level 3 using wavelet type known as biorthogonal via 2D wavelet transform. Furthermore, soft threshold is chosen to reduce the noise in the image. Unlike, hard threshold is an opposite of soft thresholding. Soft thresholding minimizes the coefficients above the threshold value. Medical image compression & de-noising using wavelet-based decomposition without discarding image originality describes horizontal, vertical and diagonal details of the image. Keywords— Discrete Wavelet Transform, Medical Images, De-Noising, 2D W...
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2017 14th International Computer Conference on Wavelet Active Media Technology and Information Processing (ICCWAMTIP)
Several works have been done in recently geared towards improving and maintaining the aging world... more Several works have been done in recently geared towards improving and maintaining the aging world population from chronic diseases due to our numerous activities. Researchers actively working in various fields (medical, academic, military, and industry). This survey report focuses on developing and implementing wireless body area network technology (WBAN) in healthcare systems. Body area network (BAN) technology establishes a system which monitors patient health status using tiny wireless sensors devices placed in or around the human body that aids medical professionals, and the patients with easy and convenience of operation and mobility. However, this technology faces peculiar challenges in designing and implementing, such as security vital for any system, privacy concern for everybody because it holds our data and must maintain high secrecy, power failure, sensor validation versus system compatibility, data consistency, cost and many others. Moreover, the survey suggests ways to improve and maintain the dependability of WBAN.
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International Journal of Scientific Research and Management
Human Resource Management (HRM) plays vital role in an educational institutions. HRM is an essent... more Human Resource Management (HRM) plays vital role in an educational institutions. HRM is an essential ingredient for changing the scope and dynamism of for evaluating worker’s performance. Performance appraisal permits institution to supervise their employee’s performance relating to competencies, punctuality, pedigree and potentials. Ignoring effective performance appraisal system results to low performance of staff work output. Institutional objectives can be achieve by effectively applying performance appraisal system with diverse positive outcomes diligently monitoring both academic and administrative staff of the Institute of Advanced Management and Technology (IAMTECH) Sierra Leone. Effective performance management and appraisal system has ultimately improved staff performance and influences their potentials in thinking, and doing work. Importantly, it brings benefits to employer and employee by creating a plain level ground for both parties. Furthermore, performance appra...
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2017 14th International Computer Conference on Wavelet Active Media Technology and Information Processing (ICCWAMTIP)
Several works have been done in recently geared towards improving and maintaining the aging world... more Several works have been done in recently geared towards improving and maintaining the aging world population from chronic diseases due to our numerous activities. Researchers actively working in various fields (medical, academic, military, and industry). This survey report focuses on developing and implementing wireless body area network technology (WBAN) in healthcare systems. Body area network (BAN) technology establishes a system which monitors patient health status using tiny wireless sensors devices placed in or around the human body that aids medical professionals, and the patients with easy and convenience of operation and mobility. However, this technology faces peculiar challenges in designing and implementing, such as security vital for any system, privacy concern for everybody because it holds our data and must maintain high secrecy, power failure, sensor validation versus system compatibility, data consistency, cost and many others. Moreover, the survey suggests ways to improve and maintain the dependability of WBAN.
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Employee motivation is a key element that subsequently achieve organizational blueprint in modern... more Employee motivation is a key element that subsequently achieve organizational blueprint in modern day of organizational operations. On this ground, the researchers assess employees' motivation in tertiary educational institutions in Sierra Leone. It covers the Institute of Advanced Management and Technology (IAMTECH) and its affiliate institution, Njala University (NU). Differences were drawn between these two institutions, as IAMTECH is private and NU public. Motivation is necessary for effective and efficient organizational dynamism such as room for growth, development, health work environment, feeling of belonging, and achievement of organizational objectives. Motivated employees dedicate their energies and skills to their jobs, thereby implementing and attaining the organizational policies and blueprints. This enhances workplace ethics and accelerates employee motivation and performance in tertiary educational institutions in Sierra Leone. It clearly states that motivation i...
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Sustainability
This research reports the role of disaster policy implementation achieving disaster risk reductio... more This research reports the role of disaster policy implementation achieving disaster risk reduction (DRR) and sustainable development (SD) in Sierra Leone. The factors were highlighted to help policymakers measure disaster risk perception (DRP), disaster adaptation (DA), community participation (CP), and disaster policy implementation (DPI) towards achieving disaster risk reduction and sustainable development. A questionnaire was administered to collect data from the respondents in six disaster-prone communities (Dwarzarck, Portee-Rokupa, Kroobay, Susan’s Bay, Moyiba, and Colbot) in Freetown, Sierra Leone. Employing the structural equation model approach, we found that all the disaster risk reduction factors (DRP, CP, DA, and DPI) directly influence SD. Furthermore, disaster policy implementation serves as a channel through which disaster risk reduction influences sustainable development. This study suggests to policymakers to use the factors mentioned earlier to design effective dis...
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Asian Journal of Interdisciplinary Research
The use of social media in a public emergency is dated back to the terrorist attacks (2001) in th... more The use of social media in a public emergency is dated back to the terrorist attacks (2001) in the United States. Since then, it is has been used to effectively manage critical happenings in public emergency or disaster events and also for managing future public emergencies. Unfortunately, the underdeveloped countries are far behind in the race to enhance infrastructures that would mitigate or avert critical events from happening. The effects of social media are keyed to public emergencies as it allows the instant flow of communication to a broader population, helps government or organizations locate those affected by the disaster, and to help further those organizations to manage the available resources allocated to that public emergencies effectively. It can be exploiting the appropriate social media tools focusing on the use of ICT before, during, or after the emergency crisis. Furthermore, the exponential increase in fake news of modern times is a concern for government and orga...
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Asian Journal of Interdisciplinary Research
The internet hosts all online activities either for public or private usage. It is a powerful onl... more The internet hosts all online activities either for public or private usage. It is a powerful online podium where people socialize, make new friends, conduct academic research, perform online business transactions, share sensitive data, communication over the internet, surveillance purpose by security agencies, monitor climatic condition, used in e-healthcare system, online banking, online pay, e-commerce, defense system, and host of others critical infrastructures are the new order of the day. This has attracted online criminals to diverse numerous malicious techniques to invade people’s privacy and also exploit those data. A new game has resulted in these online malicious activities are known as “cybercrime or internet crime” which is a rewarding business as of today. Therefore, it has become difficult to protect those online activities as cybercrimes are growing daily, which suggests that effective and appropriate countermeasures are needed to combat those threats and make online...
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Asian Journal of Interdisciplinary Research
Wireless broadband subscribers have tripled in the past two decades in the world. It subsequently... more Wireless broadband subscribers have tripled in the past two decades in the world. It subsequently adds more burden on the network traffic, thereby pressuring the current 2G / 3G wireless network infrastructural development in Freetown, Sierra Leone. The existing 2G / 3G network infrastructures in Freetown offer limited resources for download and upload speed of 12.54Mbps and 2.59Mbps, respectively, to active subscribers. The exponential increase in the country’s population has adverse effects on the subscriber’s database. Therefore, a considerable task is faced by the country’s telecommunication network infrastructures to devise an improvement and efficient technologies to augment the current system to handle the numerous issues. Three active private mobile network operators (X, Y, & Z) and one Government-owned operator (W) exist in the country. The only operator that runs across the country is operator X, and it has the highest number of subscribers. The country has just rollout it...
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Sustainability
This research reports the role of disaster policy implementation achieving disaster risk reductio... more This research reports the role of disaster policy implementation achieving disaster risk reduction (DRR) and sustainable development (SD) in Sierra Leone. The factors were highlighted to help policymakers measure disaster risk perception (DRP), disaster adaptation (DA), community participation (CP), and disaster policy implementation (DPI) towards achieving disaster risk reduction and sustainable development. A questionnaire was administered to collect data from the respondents in six disaster-prone communities (Dwarzarck, Portee-Rokupa, Kroobay, Susan’s Bay, Moyiba, and Colbot) in Freetown, Sierra Leone. Employing the structural equation model approach, we found that all the disaster risk reduction factors (DRP, CP, DA, and DPI) directly influence SD. Furthermore, disaster policy implementation serves as a channel through which disaster risk reduction influences sustainable development. This study suggests to policymakers to use the factors mentioned earlier to design effective dis...
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Journal of Human Resource Management
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Science Journal of Business and Management
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Journal of Human Resource Management, 2019
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International Journal on Data Science and Technology
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International Journal of Intelligent Information Systems
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International Journal of Medical Imaging
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Asian Journal of Interdisciplinary Research
Wireless broadband subscribers have tripled in the past two decades in the world. It subsequently... more Wireless broadband subscribers have tripled in the past two decades in the world. It subsequently adds more burden on the network traffic, thereby pressuring the current 2G / 3G wireless network infrastructural development in Freetown, Sierra Leone. The existing 2G / 3G network infrastructures in Freetown offer limited resources for download and upload speed of 12.54Mbps and 2.59Mbps, respectively, to active subscribers. The exponential increase in the country’s population has adverse effects on the subscriber’s database. Therefore, a considerable task is faced by the country’s telecommunication network infrastructures to devise an improvement and efficient technologies to augment the current system to handle the numerous issues. Three active private mobile network operators (X, Y, & Z) and one Government-owned operator (W) exist in the country. The only operator that runs across the country is operator X, and it has the highest number of subscribers. The country has just rollout it...
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Asian Journal of Interdisciplinary Research
This paper presents a detailed survey of global energy delivery and smart grid approaches. Partic... more This paper presents a detailed survey of global energy delivery and smart grid approaches. Particularly in the sense that shows the impacts on the production of energy resources globally. How can energy losses be reduced, primarily by implementing smart grid approaches? Power transfers and reduction of energy sources can be made by smart grids with information technology (I.T) such as sensors digital meters and communication networks. Energy from photovoltaic and wind power are some of the energy delivery systems that have gained attention since they are cheap and environment-friendly and do not emit greenhouse gas. Presently available grid is insufficient to serve future systems. For this reason, an intelligent grid system is required to support future needs for society. This paper expounds on the impacts of the existing power delivery system and suggests a smart grid for global energy delivery on a better management system.
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Asian Journal of Interdisciplinary Research
Humans' growing desire to continuously interact with each other through the internet has both... more Humans' growing desire to continuously interact with each other through the internet has both negative and positive consequences, especially if users tend to use it maliciously. The advent of social networking sites has broken the traditional barriers to communication. It is a cost-effective way of communicating using text-messages, video-messages, and voice-notes as it happens from a source (sender) to the audience (receivers). Anyone can participate if they have a mobile phone with internet facilities, and now, everyone is an online journalist and a reporter. Unfortunately, although social media platforms have numerous merits, these platforms still face critical challenges, especially in controlling and policing content post by users. The revolution in information technology and social networking platforms have provided a NEW NORMAL for online fraudsters and criminals. Fake news, hate speech, and political propaganda/rhetoric has created a confusing world, especially during th...
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Papers by Elizabeth Katta