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European Journal of Microbiology and Immunology
Authors: Sai Duraisingham, Steven Hanson, Matthew Buckland, Sofia Grigoriadou, and Hilary Longhurst

Pseudomonas aeruginosa (PA) is commonly isolated from the respiratory secretions of antibody deficiency patients, but the significance of this has not been well studied. We have reviewed our adult antibody deficiency cohort of 179 patients and assessed the prevalence and characteristics of PA infection and the effects of early antibiotic eradication treatments. Of the 34 patients with PA, 55.9% (19) underwent successful eradication and were infection-free, 38.2% (13) had intermittent infection, and 5.9% (2) had chronic PA. PA infection was significantly associated with bronchiectasis (p < 0.0001), with 36.1% (22 out of 61) of patients with bronchiectasis developing a PA infection. Infection status was also significantly associated with chronic sinusitis (p < 0.0001). Most treated PA exacerbations were symptomatic and with colony counts of ≥1000 cfu/ml. Current eradication protocols used at our center involve early treatment at first positive isolate with ciprofloxacin for 3 weeks and nebulized colomycin for 3 months, and if eradication fails, intravenous ceftazidime and gentamycin or colomycin is administered for 2 weeks. Continued sputum surveillance and early eradication treatments upon positive PA culture may help to limit chronic PA infection in antibody deficiency patients.

Open access

Abstract  

Bench scale experiments were conducted to determine the dissolution characteristics of UO2, U3O8, and UO3 in aqueous peroxide-containing carbonate solutions. The experimental parameters investigated included carbonate countercation (NH4 +, Na+, K+, and Rb+) and H2O2 concentration. The carbonate countercation had a dramatic influence on the dissolution behavior of UO2 in 1 M carbonate solutions containing 0.1 M H2O2, with the most rapid dissolution occurring in (NH4)2CO3 solution. The initial dissolution rate (y) of UO2 in 1 M (NH4)2CO3 increased linearly with peroxide concentration (x) ranging from 0.05 to 2 M according to: y = 2.41x + 1.14. The trend in initial dissolution rates for the three U oxides under study was UO3 ≫ U3O8 > UO2.

Restricted access
Journal of Behavioral Addictions
Authors: Nerilee Hing, Alex M. T. Russell, Matthew Browne, Matthew Rockloff, Catherine Tulloch, Vijay Rawat, Nancy Greer, Nicki A. Dowling, Stephanie S. Merkouris, Daniel L. King, Matthew Stevens, Anne H. Salonen, Helen Breen, and Linda Woo

Abstract

Background and aims

Gambling-related harm to concerned significant others (CSOs) is an important public health issue since it reduces CSOs' health and wellbeing in numerous life domains. This study aimed to 1) estimate the first national prevalence of CSOs harmed by gambling in Australia; 2) identify the characteristics of CSOs most at risk of harm from another person's gambling; 3) compare the types and number of harms experienced by CSOs based on their relationship to the person who gambles; and 4) compare the number of harms experienced by CSOs by self-identified gender.

Methods

Based on a national CATI survey weighted to population norms, 11,560 respondents reported whether they had been personally and negatively affected by another person's gambling in the past 12 months; and if so, answered detailed questions about the harms experienced from the person's gambling who had harmed them the most.

Results

Past-year prevalence of gambling-related harm to adult Australian CSOs was (6.0%; 95% CI 5.6%–6.5%). CSOs most commonly reported emotional harms, followed by relationship, financial, health and vocational harms, respectively. Former partners reported the most harm, followed by current partners, other family members and non-family members, respectively. Female CSOs were more likely to report more harm and being harmed by a partner or other family member, and male CSOs from a non-family member.

Discussion and conclusions

The findings provide new insights into the wider societal burden of gambling and inform measures aimed at reducing harm to CSOs from gambling and supporting them to seek help.

Open access