Advancing Power Transformer Cooling: The Role of Fluids and Nanofluids-A Comprehensive Review.

The ongoing pursuit of enhanced efficiency and sustainability in power transformer cooling systems has spurred extensive research into the properties and performance of insulating fluids. This review explores the evolution of transformer cooling technologies, focusing on traditional mineral oils and the emerging roles of alternative fluids, such as natural and synthetic esters, and nanofluids. Mineral oils, though widely used, degrade over time, leading to a reduction in breakdown voltage (BDV) from 46 kV to 30 kV, exhibiting low fire resistance.

evaluation of dental pulp stem cells for sciatic nerve regeneration: foundations for future applications.

Introduction: Peripheral nerve injuries, resulting from trauma or medical interventions, present significant clinical challenges due to their severe physiological and functional impacts. Despite various therapeutic approaches, optimal methods for promoting nerve regeneration remain difficult to obtain. This study is a preliminary step towards the future use of chitosan nerve guide conduits combined with human dental pulp stem cells and their conditioned media to promote nerve regrowth in a rat model with severe sciatic nerve damage.

Development and application of a novel multi-channel in vitro electrical stimulator for cellular research.

Background: Exposure to electric fields affects cell membranes impacting their potential and altering cellular excitability, nerve transmission, or muscle contraction. Furthermore, electric stimulation influences cell communication, migration, proliferation, and differentiation, with potential therapeutic applications. In vitro platforms for electrical stimulation are valuable tools for studying these effects and advancing medical research.

HiDaFernPT: Historical data of spore availability for 121 fern and lycopod taxa in Portugal (1926-2013).

Species phenology is being altered by ongoing climate changes with yet underappreciated consequences for ecological processes and ecosystem stability. Contrary to what happens with some key life events of flowering plants, comparatively little information exists about fern and lycophyte phenology and how it is affected by the current climatic changes. In part, this stems from the lack of long-term datasets.

Liposomal encapsulation of cholecalciferol mitigates toxicity and delays tumor growth.

Introduction: Vitamin D (cholecalciferol) has demonstrated potential anticancer properties, but its clinical application is limited by associated toxicity at effective doses. This study investigated the use of liposomal encapsulation to increase the therapeutic efficacy of vitamin D while mitigating its toxicity.

Methods: Liposomal vitamin D (VD-LP) was prepared via the film-hydration method and characterized for particle size, polydispersity index, encapsulation efficiency, and long-term stability.