Low-temperature catalytic oxidation of ethanol over doped nickel phosphates.

This work is focused on the synthesis and performance of Ni(PO)-based catalysts doped with Cu, Co, Mn, Ce, Zr, and Mg for the complete oxidation of ethanol, aiming at reducing emissions from ethanol-blended gasoline. Nickel phosphate was prepared via the co-precipitation method, followed by impregnation with the specified dopants. The catalysts were thoroughly characterized by XRD, N-physisorption, XRF, FTIR and Raman spectroscopy, FESEM, NH-TPD, CO-TPD, and H-TPR to explain their performance.

Recent technologies for glyphosate removal from aqueous environment: A critical review.

The growing demand for food has led to an increase in the use of herbicides and pesticides over the years. One of the most widely used herbicides is glyphosate (GLY). It has been used extensively since 1974 for weed control and is currently classified by the World Health Organization (WHO) as a Group 2A substance, probably carcinogenic to humans.

Leaching of metals from red mud and toxicity in human cells in vitro.

Toxicity of red mud, a waste from alumina production, was studied using human breast cancer MCF-7 cells. Culture medium was prepared by mixing water for 3 days with the red mud and removing solid particles afterwards (red mud water). Culture for 48 h of the cells in this medium in neutral pH decreased the cell viability, as analyzed by the MTT-test, and increased the formation of reactive oxygen species.

Semi-solid extrusion 3D printing of tailored ChewTs for veterinary use - A focus on spectrophotometric quantification of gabapentin.

Currently, there are a few or none marketed gabapentin veterinary products, leading to treatment with compounded dosage forms or off-label use of human-marketed products. With the said approaches, there are significant risks of preparation errors, rendering these practices suboptimal. A new manufacturing technique to accurately and rapidly prepare veterinary dosage forms close to the point-of-care is needed.

The impact of teacher's presence on learning basic surgical tasks with virtual reality headset among medical students.

Background: The aim of this study was to investigate whether the presence of a teacher affects learning related outcomes in teaching basic surgical tasks with a Virtual Reality (VR) headset.

Methods: 26 fourth-year medical studentsparticipated in a voluntary exercise. Students practiced basic surgical procedure exercises using the VR4HEALTHCARE application in VR with OCULUS Rift S glasses.