Background: Food-safety and allergen training is widely mandated or recommended, yet training can improve knowledge without reliably changing routine behaviour, organisational controls, or health outcomes. Objective: To determine the effectiveness of training for occupational foo...
Open access
Research Article10.9734/cjast/2026/v45i94754
Quinoxaline derivatives are of continuing interest because of their diverse biological properties and their suitability for structural modification. This study synthesized a series of (E)-4-methyl-N'-(1-phenylethylidene)tetrazolo[1,5-a]quinoxaline-8-sulfonohydrazide derivatives a...
Open access
Research Article10.9734/cjast/2026/v45i94753
This study examined long-term land-use and Bakin Birji pond dynamics together with the seasonal pattern of confirmed malaria cases in a semi-arid setting of Zinder Region, Niger. Land-use maps were prepared from Landsat imagery for 1993, 2008 and 2023; climatic data for 1993-2022...
Open access
Research Article10.9734/cjast/2026/v45i94751
Background: Radon is a naturally occurring radioactive gas and an important indoor environmental contaminant because prolonged exposure may increase the risk of lung cancer. Indoor radon concentrations can vary considerably between dwellings and may also be influenced by seasonal...
Open access
Research Article10.9734/cjast/2026/v45i94752
Nature is routinely invoked as a design archive for medicine and engineering, and the volume of work claiming biological inspiration has expanded faster than the evidence needed to evaluate it. This critical narrative review examines how cues drawn from living systems have been c...
Open access
Research Article10.9734/cjast/2026/v45i94750
Preheating determines the amount of thermal energy stored in refractory components before baking and is therefore central to the operation of a wood-fired bakery oven. This study experimentally characterised the thermal behaviour and energy balance of an industrial wood-fired bak...
Open access
Research Article10.9734/cjast/2026/v45i94748
Rural electrification remains one of the most persistent gaps in Sahelian energy access, and this study responds to it with a fully transparent, resource-adapted engineering methodology for sizing a photovoltaic-wind hybrid system rather than another generic feasibility exercise....
Open access
Research Article10.9734/cjast/2026/v45i94749
This study compares the Stromeyer, Basquin, and Wöhler fatigue models for E235 steel under three surface conditions: untreated, shot-peened, and shot-peened followed by electroless nickel coating. Fatigue specimens were extracted from a pump-rotor section selected to represent a...
Open access
Research Article10.9734/cjast/2026/v45i94746
Proton exchange membrane fuel cells (PEMFCs) are among the most promising technologies for advancing the energy transition, particularly in clean transportation and decentralised power generation. However, improving their performance requires a detailed understanding of mass-tran...
Open access
Research Article10.9734/cjast/2026/v45i94747
The rapid expansion of digital commerce in emerging markets has created significant opportunities for economic participation while simultaneously introducing new challenges related to cybersecurity, data privacy, and consumer trust. Although existing research has extensively exam...
Open access
Research Article10.9734/cjast/2026/v45i94744
Environmentally sustainable synthesis of nanomaterials offers an alternative to conventional preparation methods that may involve toxic chemicals and high energy consumption. This study synthesised titanium dioxide nanoparticles (TiO₂ NPs) using an aqueous extract of Calotropis g...
Open access
Research Article10.9734/cjast/2026/v45i94745
The interplay between modern fashion and traditional Zambian dress culture reflects a complex dynamic that underscores the challenges of preserving cultural heritage in a rapidly globalising world. This study explores the transformative effects of modern fashion trends on Zambia’...
Open access
Research Article10.9734/cjast/2026/v45i84742
Reliable access to electrical power remains a major challenge during long-distance hiking and expedition travel in which grid electricity is unavailable. This study presents the design, construction, and experimental evaluation of a lightweight, low-cost hybrid solar–wind energy...
Open access
Research Article10.9734/cjast/2026/v45i94743
Background: The use of pesticides in agricultural areas surrounding dams can lead to their transfer into bottom sediments, where they may become persistent sources of aquatic pollution. This study evaluated pesticide residues in sediment samples from the Lavononkaha dam and asses...
Open access
Research Article10.9734/cjast/2026/v45i84740
Industrial wastewaters with high biodegradable organic loads require treatment systems capable of retaining active biomass and maintaining effective mass transfer. This study evaluated a laboratory-scale fluidised-bed bioreactor (FBBR) using three support materials: commercially...
Open access
Research Article10.9734/cjast/2026/v45i84741