52 research outputs found

    BANAPEWA: banana peel as waste adsorbent / Amalina Amirah Abu Bakar

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    Recently, the use of waste materials gained attention among researchers to study the effectiveness of adsorbent media in dye treatment. The contaminants discharge in the dye processing causes the water to be polluted. Banana peel is an agricultural waste that has a potential in reducing dye concentration. The peel is the part with highest wastage, i.e., 30% to 40 % of waste produced from the banana fruits. Preliminary research shows that banana peel waste that produced daily in the household garbage and marketplace had affected to the disposal problems and environmental nuisance as well as in producing leachate. Thus, the author and team have developed a new product to reduce the dye effluents from the batik industrial wastewater

    The development of umrah booking system / Amirah Aimi Zulkiflee

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    Umrah Booking System is the system that is developed to help admin, staff and customer to manage Umrah booking through KRS Travel Sdn Bhd. The aim of this project is to develop an Umrah Booking System for KRS Travel Sdn Bhd. This project has three objectives that has been achieve which include gather and analyze the requirement, design and develop the Umrah Booking System. There were few problems encountered with manual Umrah booking process which leads to data redundancy and a lot of paper usage. It also consumes time to check on the seat availability. Besides, the current booking process leads to difficulties for the staff to keep track of the payment made by the customers. Mainly, this system focuses on Umrah booking. It also allows both staff and customer to check on seat availability of each package. Receipt of the payment also can be generate from this system. The methodology used for this system is Waterfall Model. This project involved four phases that begin with knowledge acquisition, requirement gathering and analysis, system design and system development. The programming language used for this system is JAVA language. As for the database, the author used SQL Developer to store the system‘s data. The future enhancement that can be made for this project is to enlarge the scope for other travels and can notify customer on the payment. To summarize, Umrah Booking System was developed from manual booking to online booking to reduce the current problem of Umrah booking process

    Optical and Electrical Properties of Amorphous Carbon Thin Films Grown from Mushroom Waste Oil using Chemical Vapor Deposition (CVD)

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    Amorphous carbon thin films have been successfully deposited using the Chemical Vapor Deposition (CVD) technique with various amounts of natural oyster mushroom (P.ostreatus) waste oil as carbon precursors onto the glass substrates. This study examined the impact of varying precursor amounts on the assessment of the properties of amorphous carbon thin films, especially the optical and electrical characteristics. The lower part of the oyster mushroom, which is normally discarded, was harvested and extracted into mushroom waste oil using Soxhlet extraction. CVD technique was used for the deposition of amorphous carbon, where mushroom waste oil was used as a precursor and glass as a substrate. Then, UV-Vis spectroscopy, current-voltage (I-V) measurement, and Raman spectroscopy were utilized for characterization. The findings demonstrate that the thin films show a combination of sp3 and sp2 bonded carbon atoms, which is common for amorphous carbon. The lowest optical band gap, 0.37 eV, and the highest electrical conductivity, 1.51 × 10-5 S.cm-1 was deposited at 2 ml of oyster mushroom waste oil. These results indicate that amorphous carbon grown from mushroom waste oil is capable of being a ‘green’ alternative as a source for carbon-based solar cells in the future

    BiBERT-AV: enhancing authorship verification through Siamese networks with pre-trained BERT and Bi-LSTM

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    Authorship verification is a challenging problem in natural language processing. It is crucial in security and forensics, helping identify authors and combat fake news. Recent advancements in neural network models have shown promising results in improving the accuracy of authorship verification. This paper presents a novel model for authorship verification using Siamese networks and evaluates the advantages of transformer-based models over existing methods that rely on domain knowledge and feature engineering. This paper’s objective is to address the authorship verification problem in NLP which entails determining whether two texts were written by the same author by introducing a novel approach that employs Siamese networks with pre-trained BERT and Bi-LSTM layers. The proposed model BiBERT-AV aims to compare the performance of this Siamese network using pre-trained BERT and Bi-LSTM layers against existing methods for authorship verification. The results of this study demonstrate that the proposed Siamese network model BiBERT-AV offers an effective solution for authorship verification that is based solely on the writing style of the author, which outperformed the baselines and state-of-the-art methods. Additionally, our model offers a viable alternative to existing methods that heavily rely on domain knowledge and laborious feature engineering, which often demand significant time and expertise. Notably, the BiBERT-AV model consistently achieves a notable level of accuracy, even when the number of authors is expanded to a larger group. This achievement underscores a notable contrast to the limitations exhibited by the baseline model used in exacting research studies. Overall, this study provides valuable insights into the application of Siamese networks with pre-trained BERT and Bi-LSTM layers for authorship verification and establishes the superiority of the proposed models over existing methods in this domain. The study contributes to the advancement of NLP research and has implications for several real-world applications.</p

    Development of urban climatic map of the Kuala Lumpur City / Nurul Amirah Isa

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    After the Industrial Revolution in 1700s, the explosion of industries led to rapid urbanization. Rapid urbanization is noticed as a prominent factor in altering the climate, leading to the formation of urban heat islands (UHI). In many countries, climate-related studies were often difficult to be conducted due to the unavailability of climatic datasets to critically assess the urban climate condition. In Malaysia, the impacts of urbanization have been long studied, pioneered by Sani in 1970s. The alarming status of urban climate has been one of the issues in combating the effects of urban heat island (UHI) especially in Kuala Lumpur. There is an urgent need for innovation in solving this issue effectively. Thus, this study aims to generate a tropical Urban Climatic Map (UC-Map) of the Kuala Lumpur City. Kuala Lumpur was selected as a case study due to its unique urban morphology which consisted of well-planned and unplanned developments. Taking the advantages of technology evolutions to replace the conventional methods, this study was conducted using Geographical Information Systems (GIS), Remote Sensing and Weather Research and Forecasting (WRF) numerical simulation for data acquisition, processing and analyses. GIS was employed as the main platform for data storage, data preparation and data analysis. Remote Sensing technique was utilized primarily to extract important information of the Earth’s features existed within the study area. The WRF numerical simulation was used to generate the climate condition of the study area. Due to the complex features of the Kuala Lumpur City, this study utilized non-parametric statistical approach (Kruskal-Wallis test) and Ordinary Least Square (OLS) regression to assess and model the urban climate condition. In this research, six urban parameters were tested due to their severe impacts towards urban climate condition. After a thorough investigation, five of these parameters were identified to have significant effects on the urban climate of Kuala Lumpur. The developed urban climatic map was produced only using these five parameters, which are built-up area, green cover, terrain elevation, building volume and surface roughness. The developed UC-Map consists of two main components namely thermal load and dynamic potential aspect. Based on the map developed by the author, the examination of the current urban climate condition revealed that mitigation measures should be taken seriously in the warming areas while preservation and maintenance of the valuable areas should be enforced. Through the analyses conducted, this study has suggested possible mitigation measures to at least reduce the impacts of UHI. In the future, the improvement of the current model can be made by including other urban parameters. The development of specific UC-Map for other cities in Malaysia is also encouraged since their characteristics might differ from the Kuala Lumpur City

    Video interview with author and manuscript owner Professor Sa’adiya Omar

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    Fieldwork Team: Dr. Mustapha Hashim Kurfi (Principal Investigator), Hauwa Usman (Local Project Manager), Alhaji Abubakar Maikudi Aishat (General Field Facilitator). Technical Team: Prof. Fallou Ngom (Project Director and former Director of the African Studies Center), and Eleni Castrol (Technical Lead, BU Libraries). These collections on Gender in Nigerian Ajami Manuscripts are copied as part of the African Studies Center’s African Ajami Library. Access Condition and Copyright: These materials are subject to copyright. All rights reserved to the author. For use, distribution or reproduction contact Professor Fallou Ngom ([email protected]). Required Citation: Kurfi, M. H., Hauwa U., Ngom, F., and Castro, E. (2020). African Ajami Library: Gender in Nigerian Ajami Manuscripts. Boston: Boston University Libraries: http://hdl.handle.net/2144/41953. For Inquiries: Please Contact Professor Fallou Ngom ([email protected]).Video interview with author and manuscript owner Professor Sa’adiya Omar. Professor Sa’adiya Omar, the most celebrated author of women in the Sokoto Caliphate of Northern Nigeria. Professor Sa’adiya currently occupies the position of Nana Asma’u and Modibbo Kilo, the leaders of the Yantaru movement, i.e. Uwartaru (the Mother of the Yantaru). Equally, she had served as the National Amirah (President) of the largest Muslim umbrella organization in Nigeria – Federation of Muslim Women’s Associations in Nigeria (FOMWAN). As at the present, she serves in many capacities and is a member of various Islamic committees in Sokoto state and in Nigeria in general

    High turnover in clinical dietetics: A qualitative analysis

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    Background: Relationships between dietitians and other healthcare providers can impact the degree to which patient care is collaborative; inefficient communication can lead to suboptimal care. It takes time for multidisciplinary team members to build collaborative, trusting relationships. For this reason, frequent dietitian turnover is of concern. Consequences include fewer referrals to clinical dietetic services and limited provider continuity. The characteristics of clinical dietetic jobs associated with high turnover have not been identified. We predicted that managers would identify disease prestige as having an impact. In this study, we aimed to explore: 1) characteristics of clinical dietetic jobs associated with the highest turnover, and 2) consequences of high turnover on patients and managers of clinical dietitians. Methods: Research assistants conducted semi-structured interviews with ten managers of clinical dietitians in the Canadian public healthcare system. We employed a constant comparative approach to thematic analysis. We classified themes related to turnover as either avoidable or unavoidable. Results: Sub-themes under avoidable turnover included lack of manager support, growth opportunities, burnout/ workload, tension/conflict and hours of work. Sub-themes under unavoidable turnover included life-stage/life-events and geography. We also identified themes related to consequences of turnover, including: burnout/workload, client/ patient impact, tension/conflict, cost and gap-specific. As predicted, prestige was perceived as playing a role in triggering dietitian turnover. Managers observed high turnover resulting in low provider continuity and limiting patient access to dietitians. Conclusions: Managers of publicly-employed dietitians identified many factors as contributing to high turnover. Future prospective research, incorporating the objective measure of turnover and multi-method analysis of work characteristics and work setting, would be of value in the identification of characteristics of clinical dietetic jobs associated with high turnover and the consequences of high turnover on patients and managers of these staff
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