Publications by authors named "J Soltis"

Modifications to UV irradiance for indoor housed herpetofauna can affect behavior and physiology. Low ultraviolet B (UVB) irradiance can result in vitamin D3 deficiency resulting in calcium metabolism disorders including metabolic bone disease and immune suppression. High UVB can result in skin and eye issues, which can be severe enough to cause shock and death.

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Background: Fat and fat-free/muscle mass and their ratio reflecting the possible presence of obesity or sarcopenic obesity are important in assessing body composition.

Objective: The aim of the work was to assess the use of fat and fat-free mass and their ratio in the diagnosis of sarcopenic obesity, as well as correlations with selected anthropometric, somatic and biochemical parameters and indices.

Material And Methods: The object of the study was a group of 201 women (20-68 aged) randomly selected from the population without the presence of a serious disease or without the use of medication.

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Here, we evaluated if visual barriers could reduce intraspecific agonism in an all-male group of Nile crocodiles () living in a zoo. Crocodiles were monitored for nearly 100 h, and four "hotspots" of aggression within their exhibit were identified. Within these four locations, visual barriers were placed at the surface of the water with the goal of reducing agonism by targeting sight lines associated with their species-typical minimum exposure posture, where crocodiles submerge their body but maintain facial sensory organs above the water line.

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Article Synopsis
  • Crystallization by particle attachment (CPA) is a common colloidal crystallization mechanism that leads to complex structures and unique nanomaterials, playing a significant role in natural mineral formation.
  • Oriented attachment is a specific type of CPA where particles align in certain directions to create mesocrystals that, while made of distinct particles, behave like single crystals in diffraction.
  • The study of mesocrystal formation, especially in iron oxides like haematite, suggests that various factors, including precursor nanoparticles and surface ligands, influence the final structures, with recent experiments employing advanced microscopy techniques to observe this process.
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The sequestration of metal ions into the crystal structure of minerals is common in nature. To date, the incorporation of technetium(IV) into iron minerals has been studied predominantly for systems under carefully controlled anaerobic conditions. Mechanisms of the transformation of iron phases leading to incorporation of technetium(IV) under aerobic conditions remain poorly understood.

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