Recurrent midventricular ballooning, a rare phenomenon

AbstractTakotsubo cardiomyopathy is characterized by transient systolic ballooning of apical or mid segments of the left ventricle (LV) mimicking acute myocardial infarction in the absence of obstructive epicardial coronary artery disease. Recurrences remain rare and most recurrence case reports are about apical ballooning or typical Takotsubo cardiomyopathy. We present a rare case of recurrence in mid ventricular ballooning or atypical variant of Takotsubo cardiomyopathy. This case highlights the importance of future follow-up and potential of recurrence even in atypical variants

Beyond mixed metaphors of networks: applying social network analysis to study #PublicAuthority and governance

Patrycja Stys explores how using Social Network Analysis (SNA) can improve our understanding of public authority

Notes from the field: beginning a new research project

Pat Stys and Tom Kirk discuss the challenges of designing a new research project examining water governance in Goma, the Democratic Republic of the Congo

Quantification of collective behaviour via causality analysis

Terms such as leader, mediator, and follower sound equal in the description of a pack of wolves, a street protest crowd, or a business team and have very similar meanings. This indicates the presence of some general law or structure that governs collective behaviour. To reveal this, we selected the most common parameter for most levels of the organisation -- motion. A causality analysis of distance correlations was performed to obtain follow-up networks that show who follows whom and how strongly. These networks characterise an observed system in general and work as an automation bridge between the biological experiment and the broad field of network analysis. The proposed method was tested on 3D image data from a controlled experiment on a 6-member school of aquarium fish of Tiger Barb. The network patterns can be easily ethologically interpreted and agreed with expected behaviour.Comment: 18 pages, 4 figure