Kamarul Ariffin Hambali

Dr. Kamarul Ariffin Hambali

Faculty of Earth Science, Universiti Malaysia Kelantan, Jeli Campus, 17600, Jeli, Kelantan, Malaysia
orcid

Research Focus & Metrics

Academic Career Length

10Years (2017-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

View All Publications
30 October 2021 in Sustainability
Verified
Journal Article
Open access
PDF file
ANAmal Najihah Muhamad Nor
Amal Najihah Muhamad Nor
HAHasifah Abdul Aziz
Hasifah Abdul Aziz
SNSiti Aisyah Nawawi
Siti Aisyah Nawawi
RJRohazaini Muhammad Jamil
Rohazaini Muhammad Jamil
Muhamad Azahar AbasMuhamad Azahar Abas
Muhamad Azahar Abas
Humberto Perotto-BaldiviesoHumberto Perotto-Baldivieso
Humberto Perotto-Baldivieso
Globally, rapid urban expansion has caused green spaces in urban areas to decline considerably. In this study, the rapid expansion of three Southeast Asia cities were considered, namely, Kuala Lumpur City, Malaysia; Jakarta, Indonesia; and Metro Manila, Philippines. This study evaluates the changes in spatial and temporal patterns of urban areas and green space structure in the three cities over the last two decades. Land use land cover (LULC) maps of the cities (1988/1989, 1999 and 2014) were developed based on 30-m resolution satellite images. The changes in the landscape and spatial structure were analysed using change detection, landscape metrics and statistical analysis. The percentage of green space in the three cities reduced in size from 45% to 20% with the rapid expansion of urban areas over the 25-year period. In Metro Manila and Jakarta, the proportion of green space converted to urban areas was higher in the initial 1989 to 1999 period than over the latter 1999 to 2014 period. Significant changes in green space structure were observed in Jakarta and Metro Manila. Green space gradually fragmented and became less connected and more unevenly distributed. These changes were not seen in Kuala Lumpur City. Overall, the impact of spatial structure of urban areas and population density on green space is higher in Jakarta and Metro Manila when this is compared to Kuala Lumpur. Thus, the results have the potential to clarify the relative contribution of green space structure especially for cities in Southeast Asia where only a few studies in urban areas have taken place.

23 April 2019 in Scientific Reports
Verified
Journal Article
Open access
PDF file
ASAi Yin Sow
Ai Yin Sow
AIAhmad Ismail
Ahmad Ismail
SZSyaizwan Zahmir Zulkifli
Syaizwan Zahmir Zulkifli
Mohammad Noor Amal AzmaiMohammad Noor Amal Azmai
Mohammad Noor Amal Azmai
KHKamarul Ariffin Hambali
Kamarul Ariffin Hambali
This work investigates the metals concentration in the tissues of Asian swamp eel, Monopterus albus. Five selected tissues, including liver, gill, bone, skin, and muscle were examined for the concentration of Zn, Cu, Cd, Pb, and Ni. The concentrations of Cd and Pb were found high in the muscle tissues of the eels. Additionally, high amounts of Zn and Cu metals were observed in the liver, whereas the Cd, Pb, and Ni metals were highly detected in gill. The accumulation of Zn, Cu, Cd, Pb, and Ni in both skin and bone of the eel seems to vary between seasons. Low levels of Zn, Cu, and Ni were identified in the muscle tissues of the eels. This study revealed that the concentration of Cd and Pb in the muscle tissues of Asian swamp eels exceeded the permissible limits by the US EPA, suggesting the consumption of the muscle may be hazardous and can severely affect one’s health.

21 February 2022 in Antioxidants
Verified
Journal Article
Open access
PDF file
Ahmad Khusairi AzemiAhmad Khusairi Azemi
Ahmad Khusairi Azemi
MNMuhammad Luqman Nordin
Muhammad Luqman Nordin
KHKamarul Ariffin Hambali
Kamarul Ariffin Hambali
NNNur Amalina Noralidin
Nur Amalina Noralidin
SMSiti Safiah Mokhtar
Siti Safiah Mokhtar
ARAida Hanum Ghulam Rasool
Aida Hanum Ghulam Rasool
Diabetes mellitus (DM) is a metabolic disorder characterized by hyperglycemia and is considered a major health problem in the world. It is associated with endothelial dysfunction which causes progressive vascular damage. DM is a known risk factor for atherosclerosis and cardiovascular complications such as peripheral artery disease, coronary artery disease, and stroke. Medicinal plants may act as an alternative resource or adjunctive treatment option in the treatment of diabetes and its cardiovascular complications. Parkia speciosa (Fabaceae) is a plant found abundantly in the Southeast Asian region. Its seeds, with or without pods, and roots have long been used as a traditional medicine in this region to treat hypertension and diabetes. Studies have shown its numerous beneficial pharmacological properties. Extracts of P. speciosa, particularly from its seeds and empty pods, show the presence of polyphenols. They also exhibit potent antioxidant, hypoglycemic, anti-inflammatory, and antihypertensive properties. Its hypoglycemic properties are reported to be associated with the presence of β-sitosterol, stigmasterol, and stigmat-4-en-3-one. The current review aimed to provide an overview of the current status of P. speciosa, its pharmacological potential, and its phytochemical content in attenuating diabetic vasculopathy. Glycemic status, oxidative stress, inflammation, and hyperlipidemia are known to play pivotal roles in the initiation and severity of diabetic cardiovascular diseases; thus, targeting these factors might be beneficial for preventing and/or treating diabetic vasculopathy.

31 January 2017 in Tropical Life Sciences Research
Verified
Journal Article
Open access
NKNorazila Kassim
Norazila Kassim
KHKamarul Ariffin Hambali
Kamarul Ariffin Hambali
AAAainaa Amir
Aainaa Amir
Proximate analysis of twelve species of fruits commonly consumed by long-tailed macaques (Macaca fascicularis), i.e., Arenga pinnata, Areca catechu, Terminalia catappa, Elaeis guineensis, Lagerstroemia tomentosa, Mangifera indica, Cascabela thevetia, Muntingia calabura, Musa sp., Artocarpus heterophyllus, Ficus tinctoria ssp. gibbosa and Ficus microcarpa, was conducted with the specific objective to determine the nutritional composition of the foodstuffs of long-tailed macaques. The results showed the following order of nutrients: fibre, protein, fat and ash. Based on the results of the chemical analysis, the highest percentage of fibre content (52.7%), protein (9.9%), fat (77.2%) and ash (8.5%) were found in A. catechu, T. catappa, E. guineensis and C. thevetia, respectively. The nutrient composition of these twelve fruit species was found to differ (ANOVA test: crude protein, F (11,24) = 87.978, p < 0.05; crude fibre, F (11,24) = 28.886, p < 0.05; crude fat, F (11,24) = 2081.396, p < 0.05 and ash, F (11,24) = 41.011, p < 0.05). Fibre was found in the highest amount among the four types of nutrients studied. Here, A. catechu had the highest relative fibre content of all tested fruits, E. guineensis had the highest fat content, T. catappa had the highest protein content, and the total mineral content was highest in C. thevetia. Proximate analysis of twelve species of fruits commonly consumed by long-tailed macaques (Macaca fascicularis), i.e., Arenga pinnata, Areca catechu, Terminalia catappa, Elaeis guineensis, Lagerstroemia tomentosa, Mangifera indica, Cascabela thevetia, Muntingia calabura, Musa sp., Artocarpus heterophyllus, Ficus tinctoria ssp. gibbosa and Ficus microcarpa, was conducted with the specific objective to determine the nutritional composition of the foodstuffs of long-tailed macaques. The results showed the following order of nutrients: fibre, protein, fat and ash. Based on the results of the chemical analysis, the highest percentage of fibre content (52.7%), protein (9.9%), fat (77.2%) and ash (8.5%) were found in A. catechu, T. catappa, E. guineensis and C. thevetia, respectively. The nutrient composition of these twelve fruit species was found to differ (ANOVA test: crude protein, F (11,24) = 87.978, p < 0.05; crude fibre, F (11,24) = 28.886, p < 0.05; crude fat, F (11,24) = 2081.396, p < 0.05 and ash, F (11,24) = 41.011, p < 0.05). Fibre was found in the highest amount among the four types of nutrients studied. Here, A. catechu had the highest relative fibre content of all tested fruits, E. guineensis had the highest fat content, T. catappa had the highest protein content, and the total mineral content was highest in C. thevetia. Analisis proximat dua belas jenis buah-buahan yang biasa dimakan oleh kera ekor panjang seperti Arenga pinnata, Areca catechu, Terminalia catappa, Elaies guineensis, Lagerstroemia tomentosa, Mangifera indica, Cascabela thevetia, Muntingia calabura, Musa spp., Artocarpus heterophyllus, Ficus tinctonia ssp. gibbosa dan Ficus microcarpa telah dijalankan dengan objektif khusus untuk menentukan kandungan nutrien makanan kera ekor panjang. Hasil kajian menunjukkan susunan nutrien yang berikut; serat, protein, lemak dan abu. Berdasarkan keputusan daripada analisis kimia, peratusan tertinggi kandungan serat (52.7%), protein (9.9%), lemak (77.2%) dan abu (8.5%) terdapat dalam A. catechu, T. catappa, E. guineensis dan C. thevetia. Kandungan nutrient daripada dua belas jenis buah-buahan ini didapati berbeza antara satu sama lain (Analisis ANOVA: serat, F (11, 24) = 87.978, p < 0.05; fiber, F (11,24) = 28.886, p < 0.05; lemak, F (11,24) = 2081.396, p < 0.05 and abu, F (11,24) = 41.011, p < 0.05). Kandungan serat adalah yang paling tinggi di antara keempat-empat jenis nutrien yang dikaji. Maka, A. catechu mempunyai kandungan serat tertinggi di antara buah-buahan yang diuji, E. guineensis mempunyai kandungan lemak tertinggi, T. catappa mempunyai kandungan protein tertinggi dan kandungan mineral yang paling tinggi terdapat dalam C. thevetia.

22 June 2021 in Polymers
Verified
Journal Article
Open access
PDF file
MAMuhammad Aiman Hakim Mohd Azman
Muhammad Aiman Hakim Mohd Azman
Sharizal Ahmad SobriSharizal Ahmad Sobri
Sharizal Ahmad Sobri
MOHD NATASHAH NORIZANMOHD NATASHAH NORIZAN
MOHD NATASHAH NORIZAN
MAMohd Nazri Ahmad
Mohd Nazri Ahmad
W Omar Ali Saifuddin Wan IsmailW Omar Ali Saifuddin Wan Ismail
W Omar Ali Saifuddin Wan Ismail
NNNoorsidi Aizuddin Mat Noor
Noorsidi Aizuddin Mat Noor
Particleboard is not entirely a wood replacement but a particular material with its properties, making it more effective at different times than heavy or solid wood. The world’s biggest concern is environmental problems with formaldehyde as a particulate board binder that can lead to human carcinogenic agents. A cradle-to-gate life cycle assessment (LCA) of particleboard production was performed using openLCA software. The impact assessment was carried out according to the software’s features. This preliminary investigation aims to analyze the chemical composition of particleboard and identify its environmental impact. The Fourier-transform infrared spectroscopy (FTIR) system was used to track the functional group of aliphatic hydrocarbons, inorganic phosphates, and main aliphatic alcohols found in particleboards made in Malaysia. Based on the FTIR results, aliphatic groups were found in numerous aggravates that the spectroscopic infrared was likely to experience. The most important vibrational modes were C–H, at approximately 3000 cm−1, and –CH deformations around 1460 cm−1 and 1380 cm−1. Eight effect groups demonstrated that 100% of the input and all analyses produced the same relative outcome. The life cycle of a product is determined by pollution of the air, water, and soil. Thus, particleboard has a minimal impact on the environment, except for global warming.

29 January 2019 in BMC Pharmacology and Toxicology
Verified
Journal Article
Open access
PDF file
ASAi Yin Sow
Ai Yin Sow
AIAhmad Ismail
Ahmad Ismail
SZSyaizwan Zahmir Zulkifli
Syaizwan Zahmir Zulkifli
Mohammad Noor Amal AzmaiMohammad Noor Amal Azmai
Mohammad Noor Amal Azmai
KHKamarul Ariffin Hambali
Kamarul Ariffin Hambali
Levels of toxic metal exposure in indigenous inhabitants are key bioindicators of the severity of environmental contamination. This study measured the seasonal variation of heavy metals and metallothionein (MT) contents in Asian swamp eels (Monopterus albus) from a paddy field situated in Tumpat, Kelantan, Malaysia, to identify prevalence, patterns and associations and togain insight on the suitability of MT as a biomarker for metal exposure. Gill, muscle and liver tissues of M. albus (n = 50) sampled during the ploughing, seedling, growing and harvesting phases of rice growing were collected. The concentrations of copper (Cu), zinc (Zn), lead (Pb), nickel (Ni), and cadmium (Cd) in these tissues were determined by flame atomic absorption spectrometry. MT from each sample was isolated and purified, and subsequently quantitated using UV spectrophotometry. Associations between metal and MT concentrations, season and tissue type were evaluated using Pearson correlation and ANOVA with post-hoc Tukey HSD analysis. Zn was present in higher quantities in gill and liver tissues, while Cu levels were elevated solely in liver. Patterns of non-essential metal accumulation were varied: Cd was detected in low concentrations in all tissues, while Pb and Ni were abundant in gill tissues across all seasons. MT concentration in liver tissue was consistently higher than that found in muscle or gill tissue, except during the growing phase. Moreover, significant correlations (P < 0.05) were observed for Cd, Ni, and Zn when MT was employed as metal exposure biomarker. However, no significant association was found between high Pb and Ni levels and MT concentration in gill tissue.Variation of bioaccumulation rates of heavy metals among the different tissues was observed. Some of these metal concentration differences were found to be associated with MT concentration and, by extension, to its high metal-binding capacity. Significant liver MT-Zn, MT-Cd, and MT-Ni correlations found in this study emphasised the role of metallothionein as a biomarker for exposure of zinc, cadmium and nickel metals in M. albus.