Covid-19 is a new virus that began to become a pandemic in early 2020 and has had a major impact on the teaching and learning process. Thus, the objective of this study was to identify the challenges that teachers face when dealing with the Covid-19 pandemic while conducting teaching sessions with students, as well as to investigate students' r

Arsenic contamination poses a major public health concern and harms the environment with its toxicity. Long-term exposure to a high concentration of arsenic is harmful to human health as well as environmental biodiversity. This study is aimed to fabricate and investigate the possibility of polyethersulfone-graphene oxide-polyvinyl pyrrolidone (PES-

The utilisation of polymeric membrane has been reported in numerous investigations on wastewater management of heavy metals. In this work, graphene oxide-polymer nanocomposite (GPN) adsorptive membranes were fabricated via non-solvent induced phase inversion (NIPS) method for lead removal. The modification of polyethersulfone (PES) membrane was con

Background: Preoperative SARS-CoV-2 vaccination could support safer elective surgery. Vaccine numbers are limited so this study aimed to inform their prioritization by modelling. Methods: The primary outcome was the number needed to vaccinate (NNV) to prevent one COVID-19-related death in 1 year. NNVs were based on postoperative SARS-CoV-2 rates an

The existence of a high dosage of heavy metals in industrial effluents represents the greatest challenge in wastewater treatment. Of these heavy metals, lead (Pb) is recognized as a longstanding contaminant due to rapid industrialization in the semiconductor and electronics industries that are harmful to the environment and human health. The develo

Baobab fruit shell (BFS) biomass was used as an alternative precursor for producing high surface area and microporous baobab fruit shell activated carbon (BFS-AC) by chemical activation using KOH. Scanning electron microscope (SEM) was performed for the characterization of baobab fruit shell activated carbon. The adsorption property of BFS-AC for t

This paper investigates the effect of El-Nino rainfall pattern on the unsaturated slope behavior in terms of the generation of pore-water pressure and factor of safety. The El-Nino can carry dry weather and warm ocean which may lead to the occurrence of increased rainfall. This phenomenon is common in Malaysia and it has hit the nation for so many

Membrane fouling is still a great challenge in filtration process for wastewater treatment which limits its technical and economic performance. To prevent and control on fouling it is important to understand the filtration behaviour and fouling mechanism. In this study, a new graphene oxide-polyethersulfone nanocomposite (GPN) membrane is fabricate

تعالج هذه الورقة البحثية موضوع حماية الأسرة أولادها من جريمة الابتزاز عبر وسائل التواصل الاجتماعي، حيث تناولت الورقة بيان تعريف جريمة الابتزاز وأركانها وحكمها الشرعي، كما وضحت أيضا الفئات ا�

Lipids and eicosapentaenoic acid (EPA) compounds from Nannochloropsis oceanica biomass were extracted using a combination of ionic liquids (ILs) and microwave-assisted extraction (MAE). When compared to conventional Soxhlet extraction, the proposed novel approach in this paper successfully improved both the yield of total extracted lipids and the E