The magnetic properties of disordered NdBaMnFeO and ordered NdBaMnFeO perovskites were investigated through temperature- and field-dependent DC-magnetization measurements. The temperature dependence of magnetic susceptibilities revealed that antiferromagnetic ordering occurs at temperatures below 185 K for the disordered NdBaMnFeO sample, whereas the ordered NdBaMnFeO perovskite exhibited a paramagnetic state throughout the entire temperature range examined. Notably, the disordered sample exhibited a glassy state, even at room temperature, which transformed into an antiferromagnetic state under higher applied magnetic fields.
View Article and Find Full Text PDFThe LaCaNiCuO (y = 0.0-0.4) nickelates, synthesized via a solid-state reaction method, are investigated as prospective materials for oxygen permeation membranes and IT-SOFC cathodes.
View Article and Find Full Text PDFInsect colours assist in body protection, signalling, and physiological adaptations. Colours also convey multiple channels of information. These channels are valuable for species identification, distinguishing individual quality, and revealing ecological or evolutionary aspects of animals' life.
View Article and Find Full Text PDFEnviron Sci Pollut Res Int
April 2017
Ants are considered to be suitable indicators of ecological change and are widely used in land management and environmental monitoring. However, responses of ant communities to industrial pollution are less known so far. We studied pollution-related variations of ant diversity and abundance near the Middle Ural Copper Smelter (Russia) in 2009 and 2013, with pitfall traps set up at 10 sites in Picea obovata and Abies sibirica forest.
View Article and Find Full Text PDFSkin basalcell carcinoma of the head and neck occurring within 1.5-23 yrs on the site of radiation fibrosis were smeared daily with glyciphonic ointment without dressing the wound. Tumor disintegrated after 2-6 applications followed by edema tumor tissue development on days 22-24.
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