This article explores the role of ‘critical mass’ and social networks in the generation of collective action. Drawing on qualitative and quantitative (social network) data, the article argues that both are pivotal in the process whereby collective action takes shape. The empirical focus of the article is student politics but it is argued that the mechanisms and dynamics identified have a much wider domain of application.

This article argues that Bourdieu's theory of practice provides a useful and dynamic framework which may be used to examine the reproduction of political practice. I use the Bourdieusian theoretical model to analyse and interpret data collected from 30 semi-structured interviews with British anti-capitalist activists from a range of anarchist and socialist political organizations and networks. The interviews reveal a clear case of political distinction between anarchists and socialists. The political history, political methods, and ideology of the activists become embodied and routinized over time. This explains why and how there is a durable ideological division which is consistently reproduced over and over again within sections of the British anti-capitalist movement.

Background The trend towards centralization of surgical care from rural to high‐volume centres is based on studies showing better outcomes for patients requiring complex surgical procedures. However, evidence that this also applies to less complex procedures is lacking. This study therefore aimed to determine whether there was a relationship between geographic location (rural versus urban) of surgical procedures of varying complexity and post‐operative complications. Methods This was a retrospective cohort study examining all in‐hospital deaths reported to the Australian and New Zealand Audit of Surgical Mortality (ANZASM) between 2009 and 2016. Multivariable logistic regression was used to ascertain interactive effects of location and complexity of surgical procedures on post‐operative complications, adjusted for potential confounders. Results There was no interactive effect of hospital location and operation complexity on the occurrence of post‐operative complications. Post‐operative complications were reported in 2160 of 6963 (31%) patients who died post‐surgery. Patients operated on in rural centres had lower risk profiles: younger, with lower American Society of Anesthesiologists grades and less likely to present with injury and circulatory diseases. Nonetheless, risk of post‐operative complications did not differ between procedures performed in rural compared with urban hospitals. Conclusion Results of this study suggest that a wide range of procedures may be safely performed in rural centres. Further prospective studies of unfiltered cohorts are warranted to validate these findings.

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Background: Empirical research investigating older adult homicide is sparse and rarely accumulated for greater insights. This systematic review and meta-analysis quantifies the prevalence and characteristics of homicide victimization among older adults (65 years and older) compared with younger adults (18–64 years). Method: We searched Cumulative Index to Nursing and Allied Health Literature, Cochrane, Criminal Justice Abstracts, EMBASE, MEDLINE, ProQuest, PsycINFO, Scopus, and Web of Science for studies published before December 31, 2018 (International Prospective Register of Systematic Reviews registration: CRD42017054536). Included were English-language, original, peer-reviewed studies describing the homicide of older adults. Excluded were studies not meeting age criteria, residence as an institution, or with insufficient outcome variables. The review included 39 studies; 17 were included in the meta-analysis. Data were extracted via open access or from study authors. Heterogeneity was assessed through study-level random effects estimates. Results: Pooled homicide rates per 100,000 population were 2.02 (95% CI [1.23, 3.33]) for older adults ( n = 35,325) and 3.98 (95% CI [2.42, 6.53]) for younger adults ( n = 607,224; rate ratio = .51, 95% CI [0.37, 0.70], p < .001). Proportion estimates for older adults: victim female 46.3%, location home 71.4%, offender familiar 25.2%, compared to stranger, 24.2%, motive argument 36.1%, compared to felony 30.8%, and weapon firearm 24.5%. Older adults were significantly different to younger adult victims ( p = <.001) for female ( OR = 2.5, 95% CI [2.02, 3.10]), home (3.87, 95% CI [3.45, 4.35]), stranger (1.81, 95% CI [1.66, 1.98]), argument (0.33, 95% CI [0.28, 0.39]), felony (2.78, 95% CI [2.58, 2.99]), and firearm (0.38, 95% CI [0.36, 0.40]). Conclusions: Homicide against older adults differs from younger adults and warrants specific research and tailored prevention strategies.