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Fulltext MHD Stagnation Point on Nanofluid Flow and Heat Transfer of Carbon Nanotube over a Shrinking Surface with Heat Sink Effect

Othman MN, Jedi A, Bakar NAA

Molecules, 2021 Dec 08;26(24).
PMID: 34946524 DOI: 10.3390/molecules26247441

This study is to investigate the magnetohydrodynamic (MHD) stagnation point flow and heat transfer characteristic nanofluid of carbon nanotube (CNTs) over the shrinking surface with heat sink effects. Similarity equations deduced from momentum and energy equation of partial differential equations are solved numerically. This study looks at the different parameters of the flow and heat transfer using first phase model which is Tiwari-Das. The parameter discussed were volume fraction nanoparticle, magnetic parameter, heat sink/source parameters, and a different type of nanofluid and based fluids. Present results revealed that the rate of nanofluid (SWCNT/kerosene) in terms of flow and heat transfer is better than (MWCNT/kerosene) and (CNT/water) and regular fluid (water). Graphically, the variation results of dual solution exist for shrinking parameter in range λc
Fulltext Unveiling insights: A dataset analysis of Islamic quality management systems in educational institutions toward SDG-aligned education

Zien NHR, Bakar NAA, Saad R

Data Brief, 2024 Jun;54:110343.
PMID: 38586132 DOI: 10.1016/j.dib.2024.110343

This article presents data derived from a survey conducted to assess the validity and reliability of a newly developed instrument for Quality Management System items in the context of educational institutions. By analyzing the descriptive statistics, a concise overview of the main characteristics of the data set is provided, which facilitates the implementation and interpretation of the newly developed Quality Management System. Considering the need for quality education highlighted in the United Nations Sustainable Development Goals, organizations need to prioritize quality management, which can be achieved through the implementation of Quality Management Systems. The present data set focuses on Islamic Quality Management Systems in Malaysian educational institutions and includes responses from 35 Islamic private elementary school in different states in Malaysia. This dataset covers a wide range of variables relevant to the education sector and provides valuable insights for education stakeholders and curriculum developers. By aligning with the principles of quality education advocated by the SDGs, these findings offer significant opportunities to support educators and improve the quality of education.
Fulltext Knowledge and attitude of dental students towards HIV/AIDS patients in Melaka, Malaysia

Singh VP, Osman IS, Rahmat NA, Bakar NAA, Razak NFNA, Nettem S

Malays J Med Sci, 2017 May;24(3):73-82.
PMID: 28814935 MyJurnal DOI: 10.21315/mjms2017.24.3.9

BACKGROUND: Cross contamination of HIV is a real threat today. Dental treatment often includes direct contact with a patient's blood and saliva, therefore dental professionals can be easily exposed to HIV microorganisms. Hence, it is essential to gain insight into dental students' knowledge and attitude towards HIV patients.

METHOD: A cross-sectional survey of 186 clinical year dental students (year 3, 4 and 5) in the 2015-2016 academic session at the Faculty of Dentistry, Melaka-Manipal Medical College (MMMC), Manipal University, Melaka volunteered to participate in the study. A self-administered questionnaire was used to determine their knowledge and attitude towards HIV/AIDS patients.

RESULTS: Among 137 respondents (females 74.5% and males 25.6%), 40.9% were Malay, 46.7% were Chinese, 10.2% were Indian and 2.2% were others. The majority had an excellent (41.6%) to good (56.2%) knowledge and only (18%) had a professional attitude. There was a statistically significant association of knowledge with gender (P = 0.009) and ethnicity (P = 0.024), However, no association was found between attitude and gender (P = 0.756) or ethnicity (P = 0.792), or between knowledge and attitude (P = 0.473) of dental students.

CONCLUSION: Dental students' knowledge was not significantly associated with attitude. However, knowledge was associated with gender and ethnicity, but no association was found between age and knowledge and between age, gender, or ethnicity and attitude.
Fulltext Brain-derived neurotrophic factor (BDNF) in chronic pain research: A decade of bibliometric analysis and network visualization

Ismail CAN, Zakaria R, Azman KF, Shafin N, Bakar NAA

AIMS Neurosci, 2024;11(1):1-24.
PMID: 38617040 DOI: 10.3934/Neuroscience.2024001

Chronic pain research, with a specific focus on the brain-derived neurotrophic factor (BDNF), has made impressive progress in the past decade, as evident in the improved research quality and increased publications. To better understand this evolving landscape, a quantitative approach is needed. The main aim of this study is to identify the hotspots and trends of BDNF in chronic pain research. We screened relevant publications from 2013 to 2022 in the Scopus database using specific search subject terms. A total of 401 documents were selected for further analysis. We utilized several tools, including Microsoft Excel, Harzing's Publish or Perish, and VOSViewer, to perform a frequency analysis, citation metrics, and visualization, respectively. Key indicators that were examined included publication growth, keyword analyses, topmost influential articles and journals, networking by countries and co-citation of cited references. Notably, there was a persistent publication growth between 2015 and 2021. "Neuropathic pain" emerged as a prominent keyword in 2018, alongside "microglia" and "depression". The journal Pain® was the most impactful journal that published BDNF and chronic pain research, while the most influential publications came from open-access reviews and original articles. China was the leading contributor, followed by the United States (US), and maintained a leadership position in the total number of publications and collaborations. In conclusion, this study provides a comprehensive list of the most influential publications on BDNF in chronic pain research, thereby aiding in the understanding of academic concerns, research hotspots, and global trends in this specialized field.
Challenges and opportunity in mobility among older adults - key determinant identification

Maresova P, Krejcar O, Maskuriy R, Bakar NAA, Selamat A, Truhlarova Z, et al.

BMC Geriatr, 2023 Jul 21;23(1):447.
PMID: 37474928 DOI: 10.1186/s12877-023-04106-7

BACKGROUND: Attention is focused on the health and physical fitness of older adults due to their increasing age. Maintaining physical abilities, including safe walking and movement, significantly contributes to the perception of health in old age. One of the early signs of declining fitness in older adults is limited mobility. Approximately one third of 70-year-olds and most 80-year-olds report restrictions on mobility in their apartments and immediate surroundings. Restriction or loss of mobility is a complex multifactorial process, which makes older adults prone to falls, injuries, and hospitalizations and worsens their quality of life while increasing overall mortality.
OBJECTIVE: The objective of the study is to identify the factors that have had a significant impact on mobility in recent years and currently, and to identify gaps in our understanding of these factors. The study aims to highlight areas where further research is needed and where new and effective solutions are required.
METHODS: The PRISMA methodology was used to conduct a scoping review in the Scopus and Web of Science databases. Papers published from 2007 to 2021 were searched in November 2021. Of these, 52 papers were selected from the initial 788 outputs for the final analysis.
RESULTS: The final selected papers were analyzed, and the key determinants were found to be environmental, physical, cognitive, and psychosocial, which confirms the findings of previous studies. One new determinant is technological. New and effective solutions lie in understanding the interactions between different determinants of mobility, addressing environmental factors, and exploring opportunities in the context of emerging technologies, such as the integration of smart home technologies, design of accessible and age-friendly public spaces, development of policies and regulations, and exploration of innovative financing models to support the integration of assistive technologies into the lives of seniors.
CONCLUSION: For an effective and comprehensive solution to support senior mobility, the determinants cannot be solved separately. Physical, cognitive, psychosocial, and technological determinants can often be perceived as the cause/motivation for mobility. Further research on these determinants can help to arrive at solutions for environmental determinants, which, in turn, will help improve mobility. Future studies should investigate financial aspects, especially since many technological solutions are expensive and not commonly available, which limits their use.
Field data on pre-season rice straw degradation using a microbial substrate and the effects on methane emissions during rice cultivation

Jumat F, Rahman MHA, Bakar SA, Shakri NA, Kamaruzaman R, Bakar NAA, et al.

Data Brief, 2023 Aug;49:109383.
PMID: 37600135 DOI: 10.1016/j.dib.2023.109383

Rice straw is one of the most abundant biomass wastes derived from rice cultivation activities. The current rice straw management practice during the wet (rainy) season in Malaysia involves the integration of straw into the soil. This practice offers both advantages and disadvantages to rice farmers and the environment. Straw integration may improve nutrient availability while concurrently causing high greenhouse gas (GHG) emissions due to the increase in soil carbon activity. In this work, the use of microbial substrate to enhance the degradation of straw was compared to an existing technique that used no additional inputs during soil integration. The data collected consisted of overall microbial enzyme production, soil organic carbon, soil nitrogen content, seasonal greenhouse gas emissions, plant characteristics, and crop yield. In brief, these data can be used as means of demonstrating the effects of improved straw degradation during the pre-season on the overall GHG emissions during the planting season.