There is an increasing emphasis on the diversity of disaster volunteering among disaster researchers. Our aim was to review the extent to which, and in what forms, emergent groups in the aftermath of natural disasters are examined as a topic of research. We review previous crisis and disaster management research, focusing particularly on those parts of the disaster research literature which treat with volunteerism. We describe and discuss how this research has evolved 1960–2016, and analyse how different forms of volunteerism, particularly emergent groups, have been researched following nine natural disasters. We utilize the Disaster Research Center typology to systematize and categorize research from different disaster contexts. The review shows that research on disaster management is fraught with an understanding of organization in disaster contexts based on the primacy of established formal organizations. We suggest a more fine‐tuned conceptualization of disaster volunteerism and we call for further research on actor motivations.

BackgroundSleep is essential for normal and healthy living. Lack of good quality sleep affects physical, mental and emotional functions. Currently, the treatments of obesity-related sleep disorders focus more on suppressing sleep-related symptoms pharmaceutically and are often accompanied by side effects. Thus, there is urgent need for alternative ways to combat chronic sleep disorders. This study will investigate underlying mechanisms of the effects of exercise and diet intervention on obesity-related sleep disorders, the role of gut microbiota in relation to poor quality of sleep and day-time sleepiness, as well as the levels of hormones responsible for sleep-wake cycle regulation.Methods/designParticipants consist of 330 (target sample) Finnish men aged 30 to 65 years. Among them, we attempt to randomize 180 (target sample) with sleep disorders into exercise and diet intervention. After screening and physician examination, 101 men with sleep disorders are included and are randomly assigned into three groups: exercise (n = 33), diet (n = 35), and control (n = 33). In addition, we attempt to recruit a target number of 150 healthy men without sleep disorders as the reference group. The exercise group undergoes a six-month individualized progressive aerobic exercise program based on initial fitness level. The diet group follows a six month specific individualized diet program. The control group and reference group are asked to maintain their normal activity and diet during intervention. Measurements are taken before and after the intervention. Primary outcomes include objective sleep measurements by polysomnography and a home-based non-contact sleep monitoring system, and subjective sleep evaluation by questionnaires. Secondary outcome measures include anthropometry, body composition, fitness, sleep disorder-related lifestyle risk factors, composition of gut microbiota and adipose tissue metabolism, as well as specific hormone and neurotranmitter levels and inflammatory biomarkers from venous blood samples.DiscussionIt is expected that the improvement of sleep quality after exercise and diet intervention will be evident both in subjective and objective measures of quality of sleep. Additionally, the change of sleep quality induced by exercise and diet intervention is expected to be related to the changes in specific hormones and inflammatory biomarkers, and in the composition of gut microbiota.Trial registrationCurrent Controlled Trials ISRCTN77172005

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This article illustrates, through a combination of administrative and legal perspectives, how ambitions to centralise prioritisation decisions within a police organisation can be limited by the legal rules relating to crime investigations and public order policing. As a case study, we use the centralisation of the Swedish Police, a reform intending to reduce the previously far-reaching operational independence of regional police authorities in favour of a centralised and uniform single authority. Through this case study, we analyse the interaction between the legal and institutional frameworks of policing and prosecution, including positive obligations enshrined in the European Convention on Human Rights. We conclude that legal responsibilities affecting the Swedish Police may significantly limit the possibility for managers and officers to de-prioritise many cases and public order concerns, which, in turn, may limit the ability to divert resources to other-centrally prioritised-tasks. Failure to account for such limits may cause reform ambitions to collide with legal responsibilities in day-to-day operative policing. The results indicate that research into organisational reform and police prioritisation may benefit from a more systemic analysis of the legal and institutional factors limiting institutional discretion.

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