On Hamilton-Connectivity and Detour Index of Certain Families of Convex Polytopes
A convex polytope is the convex hull of a finite set of points in the Euclidean space ℝn. By preserving the adjacency-incidence …
New norms and opportunities from the COVID-19 pandemic crisis in a higher education setting: perspectives from Universiti Brunei Darussalam
Purpose: This paper aims to share how it was possible to change the way business was conducted in a short period in order to continue …
Micro-structured Materials for the Removal of Heavy Metals using a Natural Polymer Composite
In this study, a precipitation method was employed to prepare a synthetic hydroxyapatite (HAP)/chitosan (CHN) composite by the …
Introduction and fundamentals of chalcogenides and chalcogenides-based nanomaterials
Chalcogenide and chalcogenide-based nanomaterials are well known for its important applications. Chalcogenide nanostructures have …
Hamilton-connectedness and hamilton-laceability of planar geometric graphs with applications
In this paper, we have used two different proof techniques to show the Hamilton-connectedness of graphs. By using the vertex …
Hamilton Connectivity of Convex Polytopes with Applications to Their Detour Index
A connected graph is called Hamilton-connected if there exists a Hamiltonian path between any pair of its vertices. Determining whether …
Enhancing adsorption of crystal violet dye through simple base modification of leaf adsorbent: Isotherm, kinetics, and regeneration
Dimorcarpus longan ssp. malesianus var. Malesianus (Mata Kuching) leaves (MKL) show a strong affinity toward crystal violet (CV), a …
Electrochemiluminescence nanoimmunosensor for CD63 protein using a carbon nanochips/iron oxide/nafion-nanocomposite modified mesoporous carbon interface
The detection of extracellular vesicles, or exosomes are important mediators in intercellular communication and often play a role in …
Decision Support Method for Agricultural Irrigation Scenarios Performance Using WEAP Model
The Water Evaluation and Planning (WEAP) model was invented by the Stockholm Environment Institute (SEI) to assist planning and …
COVID-19 as an opportunity to make field-based earth sciences and other similar courses easily accessible and affordable
The coronavirus disease 2019 (COVID-19) pandemic has highlighted the need to have virtual field libraries accessible to users, which is …
Comment on “Morphotectonic analysis of Aripal basin in the North-Western Himalayas (India): An evaluation of tectonics derived from geomorphic indices [Quat. Int. 568 (2020) 103–115]”
The active tectonics of the Kashmir basin is an interesting research problem because it involves a region that is located away from the …
Chalcogenide-Based Nanomaterials as Photocatalysts
Chalcogenide-Based Nanomaterials as Photocatalysts deals with the different types of chalcogenide-based photocatalytic reactions, …
Bayesian Variable Selection for Linear Models Using I-Priors
The Bayesian approach to modelling differs from the frequentist approach primarily in the supplementation of additional information …
Agarwood formation in aquilaria beccariana and aquilaria microcarpa in response to inoculation of newly isolated fungi from brunei darussalam
Mohammad YH, Shivanand P, Metali F, Taha H, Matussin NBA, Abdul-Halim AMA, Mohaimin AZ. 2021. Agarwood formation in Aquilaria …
Advances in chalcogenides and chalcogenides-based nanomaterials such as sulfides, selenides, and tellurides
This chapter focuses on chalcogenides-based nanomaterials such as sulfur, selenium, and tellurium, which is combined with other …
A Highly Sensitive Label-free Aptasensor Based on Gold Nanourchins and Carbon Nanohorns for the Detection of Lipocalin-2 (LCN-2)
A synergistic nanocomposite film composed of gold nanourchins (AuNU), oxidised carbon nanohorns (CNH), and chitosan functioned as an …
A computer-based method to determine predictive potential of distance-spectral descriptors for measuring the π-electronic energy of benzenoid hydrocarbons with applications
Graph signal processing deals with signals whose domain, defined by a graph, is irregular. The total π -electron energy or simply the π …
Scalable fabrication of chitosan-grafted silica bionanocomposite for the superb sequestration of anionic dye from aqueous solution
The aim of the current research is to fabricate chitosan-grafted silica (Chit/SiO2) bionanocomposite for the easy sequestration of …
Quality testing of distance-based molecular descriptors for benzenoid hydrocarbons
In this paper, we investigate the prediction power of all the well-known distance-based molecular structure descriptors in the …
Invasive Acacia mangium dominance as an indicator for heath forest disturbance
Heath forest ecosystems in Brunei are threatened as they are highly vulnerable to fire and converted for land development. On top of …
Integrated reservoir characterization and fluid flow distribution of the Kaimiro Formation, Taranaki Basin, New Zealand
An integrated reservoir characterization study is achieved on the Early to Middle Miocene Kaimiro Formation in the Taranaki Basin, New …
Insight review of attached microalgae growth focusing on support material packed in photobioreactor for sustainable biodiesel production and wastewater bioremediation
The suspended microalgal cultivation systems targeting the production of lipid for biodiesel is still unable to meet the commercial and …
Geochemical characteristics and depositional environments of the Narimba Formation source rock, Bass Basin, Australia
This research aims to conduct source rock characterization on the Narimba Formation in the Bass Basin, Australia, which is made of …
Effect of Co2+ and Ni2+ co-doping on SnO2 synthesized via phytogenic method for photoantioxidant studies and photoconversion of 4-nitrophenol
Tin dioxide (SnO2) and cobalt and nickel co-doped-SnO2 (Co,Ni)-SnO2 nanoparticles (NPs) have been synthesized via phytogenic and green …
Antibacterial Studies of ZnO and Cu-Doped ZnO Nanoparticles Synthesized Using Aqueous Leaf Extract of Stachytarpheta jamaicensis
Zinc oxide (ZnO) and Cu-doped ZnO nanoparticles (1% and 5%; Cu-doped ZnO NPs) were synthesized using aqueous leaf extract of …
A critical review of field relationships and gravitational origin of active normal faults in the Kashmir basin, NW Himalaya
Kashmir basin is a piggyback basin that has developed at the last stage of the ongoing collision between India and Eurasia, and it is …
A case of chain propagation: α-aminoalkyl radicals as initiators for aryl radical chemistry
The generation of aryl radicals from the corresponding halides by redox chemistry is generally considered a difficult task due to their …
The effects of FeCl3 concentration on hydrothermal pretreatment of oil palm fronds to enhance reducing sugar production
The effects of FeCl3 concentration on hydrothermal pretreatment of oil palm fronds (OPF) to enhance reducing sugar production have been …
Rapid recovery of phylogenetic diversity, community structure and composition of Bornean tropical forest a decade after logging and post-logging silvicultural interventions
Logged-over forests comprise a large proportion of tropical forest landscapes, but questions remain on how to fully describe and …
Yield and composition characteristic of Citrus nobilis pectin extracted under acidic condition
Pectin is a polymeric compound that can bind to water and form a gel. The ability to form a gel depends on the methoxyl group contained …
The global abundance of tree palms
Aim: Palms are an iconic, diverse and often abundant component of tropical ecosystems that provide many ecosystem services. Being …
Simultaneous Adsorption of Multi-lanthanides from Aqueous Silica Sand Solution Using Pectin–Activated Carbon Composite
Extraction of pectin (Pec) from banana (Musa paradisiaca L.) peels, the agricultural waste of banana fruit treated in acidic condition, …
Leaching of lanthanides from Belitung silica sand using nitric acid
A process of leaching of lanthanides from Belitung silica sand using nitric acid is reported. The research was carried out on several …
Formulation and characterization of lip balm made from beeswax, almond oil, virgin coconut oil and honey
Design, formulation and quality improvement of lip balm made from natural ingredients for tropical lip health use was studied. In this …
Feasibility study of synthetic zeolite a production: Non-financial and financial aspects
This work is aimed to study the feasibility of synthetic zeolite production from natural kaolin. This study was than focused on the …
Feasibility study of CO2purification using pressure swing adsorption and triethylene glycol absorption for enhanced oil recovery
In order to improve the quality and the separation effect of CO2 in X gas field, the influence of swing on removing of water content on …
Effect of Ni-doping on properties of the SnO2 synthesized using Tradescantia spathacea for photoantioxidant studies
Tin dioxide (SnO2) and Ni-doped SnO2 (Ni–SnO2) NPs were successfully obtained via a cost effective, phytogenic and green method using …
Effect of chain lengths of alcohol as precipitating agent on extraction of pectin from Citrus nobilis peels
In this study, pectin was extracted from Citrus nobilis peels using hydrochloric acid, followed by precipitation process using three …
Designing optimal human-modified landscapes for forest biodiversity conservation
Agriculture and development transform forest ecosystems to human-modified landscapes. Decades of research in ecology have generated …
Application of activated Na-zeolite a as a water softening agent to remove Ca2+and Mg2+ions from water
In this paper, we report the Ca2+ and Mg2+ cation exchange activities of the synthesized Na-zeolite A, which was synthesized from …
Thermal maturity and TOC prediction using machine learning techniques: case study from the Cretaceous–Paleocene source rock, Taranaki Basin, New Zealand
Thermal maturity, organic richness and kerogen typing are very important parameters to be evaluated for source rock characterization. …
Selected nanotechnologies and nanostructures for drug delivery, nanomedicine and cure
The development of nanoparticle-based drugs has provided many opportunities to diagnose, treat and cure challenging diseases. Through …
Monoclinic cerium(III) picrate tetraethylene glycol complex: design, synthesis and biological evaluation as anti-amoebic activity against Acanthamoeba sp.
In an effort to develop effective anti-amoebic agent, a salt type complex, namelyCe(Pic)2(H2O)(EO4)·H2O complex, was synthesized and …
Factors associated with participation in stool based colorectal screening in Brunei Darussalam
Colorectal cancers (CRC) continues to increase worldwide and is associated with significant morbidity and mortality. CRC can be …
Application of glycerol-preserved nuclei protocol for genome size estimation in the field conditions of a tropical rainforest
The extraordinary biodiversity of tropical regions has attracted many researchers. Despite an increasing number of genome size (GS) …
Antibacterial activities of zinc oxide and Mn-doped zinc oxide synthesized using Melastoma malabathricum (L.) leaf extract
Zinc oxide (ZnO) is considered as a potential antimicrobial agent. This work aims to investigate the properties of ZnO and Mn-doped ZnO …
Photoantioxidant studies of SnO2 nanoparticles fabricated using aqueous leaf extract of Tradescantia spathacea
A green, phytogenic and cost effective synthesis of tin oxide nanoparticles (SnO2 NPs) using aqueous leaf extract of Tradescantia …
Nitrogen-doped TiO2 fibers for visible-light-induced photocatalytic activities
Nitrogen-doped TiO2 fibers (N–TiO2 Fs) were successfully and efficiently fabricated using titanium diisopropoxide bis(acetylacetonate) …
Improvement of dye-sensitized solar cell performance through introducing TiO2 in acetylene carbon black-graphite composite electrode
In this work, we have investigated the performance of acetylene carbon black/graphite (AB/G) composite counter electrodes (CEs) by …
Beyond the limits: identifying the high-frequency detectors in the anuran ear
Despite the predominance of low-frequency hearing in anuran amphibians, a few frog species have evolved high-frequency communication …