By Daniel C. Semenza PhD 1 2 3, Ian A. Silver PhD 4, Richard Stansfield PhD 1, Brielle Savage MA 5

Firearm dealer presence and density are associated with rates of local firearm violence, a significant threat to public safety and collective well-being in the U.S. However, the authors are unaware of any studies that have examined how dealer presence and absence influence shooting rates over time using longitudinal data.

Methods

This study investigates the relationship between licensed firearm dealer presence and firearm violence using longitudinal data from over 20,000 census tracts in the 100 largest cities in the U.S. from 2015 to 2022. The analysis was conducted in 2025. The association between licensed firearm dealer openings and closings and total shooting rates was analyzed across 1-, 2-, and 3-year lag periods to account for differences in how dealer presence influences local firearm violence dynamics over time.

Results

Findings demonstrate that neighborhoods with newly opened firearm dealers experience increases in shootings that sustain after 2 and 3 years. No significant effects were found for firearm dealer closings.

Conclusions

The results highlight a complex temporal dynamic, suggesting that firearm availability through licensed firearm dealers may influence patterns of shootings within communities, particularly when new dealers open in neighborhoods without a prior dealer presence over time.

American Journal of Preventive Medicine 10 October 2025, 108079 In Press, Corrected Proof

By  The Australian Criminal Intelligence Commission

Report 24 of the National Wastewater Drug Monitoring Program is based on data collected in August (capital city and regional sites) and October 2024 (capital city sites only). Sixty-one wastewater treatment plants participated nationwide, covering approximately 57% of the population. This provides a comprehensive picture of Australia’s illicit drug markets and drug consumption habits for 12 substances. Report 24 also provides data for the 8th year of the program, allowing for comparisons with previous years.

Findings

The Australian Criminal Intelligence Commission has commissioned The University of Queensland, and through it the University of South Australia, to undertake the data collection and analysis that underpins the report.This latest report reveals that 22.2 tonnes of methylamphetamine, cocaine, heroin and MDMA was consumed between August 2023 and August 2024. This is a 34% increase from the previous year, driven by record high consumption of all 4 drugs. 

Longitudinal figures

Longitudinal figures are available for each state and territory and broken down by drug type. These figures offer a guide to trends over the period the respective drugs have been monitored by the wastewater program.

Canberra: Australian Criminal Intelligence Commission, 2025. 92p.

By Jingyuan Yu, · Aliya Andrich, · Max Schindle

This exploratory study investigates the potential gender differences in research priorities, driven by factors such as established sexual stigma and traditional gender norms surrounding pornography. Using temporal and thematic analyses, we identify and examine research topics of 6,145 pornography studies published between 2001 and 2024. Our findings suggest that the lead author's gender may influence topic selection, with women exploring topics that have historically been underrepresented or overlooked. Furthermore, female-led publications have engaged with internet and web-related research earlier and more prominently. Additionally, our analyses outline the evolution of male- and female-led publication patterns in the feld, highlighting a trend toward more balanced representation. This study aims to serve as a foundational basis for future research, encouraging more thorough investigations into gender disparities and their underlying causes within this domain. We also highlight the importance of longitudinal research to uncover potential gender disparities over time.  

Archives of Sexual Behavior (2025) 54:1995–2003