HIGH ENERGY X-RAY DIFFRACTION AND SMALL-ANGLE SCATTERING MEASUREMENTS OF HYDROGEN FATIGUE DAMAGE IN AISI 4130 STEEL

High energy X-ray diffraction and small-angle scattering measurements of hydrogen fatigue damage in AISI 4130 steel

ABSTRACT: Accurate lifetime predictions are critical for repurposing existing pipelines for hydrogen transmission as well as for developing novel steels which are minimally susceptible to lifetime degradation by hydrogen.Ultimately, lifetime prediction models assess the amount of damage a material undergoes during a typical service cycle and the cu

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Alterations and correlations in dental plaque microbial communities and metabolome characteristics in patients with caries, periodontitis, and comorbid diseases

Abstract Backgrounds The pathogenic microorganisms and clinical manifestations of caries and periodontitis are different, caries and periodontitis are usually discussed separately, and the relationship between them is ignored.Clinically, patients prone to dental caries generally have a healthier periodontal status, whereas patients with periodontit

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HIV infection and AIDS in a small municipality in Southeast Brazil

OBJECTIVE: Studies on the aspects of HIV infection in small Brazilian municipalities are invaluable to appropriately design control strategies, better allocate resources, and improve health care services.The objective of the study was to assess the clinical and epidemiological aspects of HIV infection in a small municipality.METHODS: A descriptive

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