Circuits and subterfuge: Emily Wardill and the body imaginary

Article on the works of London based artist Emily Wardill

Searchability of Networks

We investigate the searchability of complex systems in terms of their interconnectedness. Associating searchability with the number and size of branch points along the paths between the nodes, we find that scale-free networks are relatively difficult to search, and thus that the abundance of scale-free networks in nature and society may reflect an attempt to protect local areas in a highly interconnected network from nonrelated communication. In fact, starting from a random node, real-world networks with higher order organization like modular or hierarchical structure are even more difficult to navigate than random scale-free networks. The searchability at the node level opens the possibility for a generalized hierarchy measure that captures both the hierarchy in the usual terms of trees as in military structures, and the intrinsic hierarchical nature of topological hierarchies for scale-free networks as in the Internet.Comment: 9 pages, 10 figure

A simple model for self organization of bipartite networks

We suggest a minimalistic model for directed networks and suggest an application to injection and merging of magnetic field lines. We obtain a network of connected donor and acceptor vertices with degree distribution $1/s^2$, and with dynamical reconnection events of size $\Delta s$ occurring with frequency that scale as $1/\Delta s^3$. This suggest that the model is in the same universality class as the model for self organization in the solar atmosphere suggested by Hughes et al.(PRL {\bf 90} 131101)

Learning from eLearning: Emerging Constructive Learning Practices

This research is situated within the field of Information and Communication Technologies for Development (ICT4D) and asks if ICT use can make learning practices change. While constructive learning practices are critical to both individual and societal development, repetitive learning practices are the norm in many developing countries. The study is based on observations and in-depth interviews and uses a structurational approach to understand if and how students views of learning change during an e-learning program in Sri Lanka. We found four constructive learning practices that emerged through technology use; individual exploring, interaction with peers, interaction with teachers, and taking responsibility of the learning. Many constructive learning practices emerged outside the LMS used, in students’ voluntary uses of publicly available resources on the Internet. The study shows that technology use can play a positive role for development, provided an open environment is available; students learn constructive practices from e-learning

Policy regarding the sequential lineup is not informed by probative value but is informed by ROC analysis.

It is important to determine if switching from simultaneous to sequential lineups affects response bias (the inclination to make an identification from a lineup), discriminability (the ability to distinguish between innocent and guilty suspects), or both. Measures of probative value cannot provide such information; receiver operating characteristic analysis can. Recent receiver operating characteristic analyses indicate that switching to sequential lineups both induces more conservative responding and makes it more difficult to distinguish between innocent and guilty suspects. If more conservative responding is preferred (i.e., if policymakers judge that the harm associated with the reduction of correct identifications is exceeded by the benefit associated with the reduction in false identifications), recent data indicate that this result can be achieved without a loss of discriminability by using the simultaneous lineup procedure in conjunction with a more conservative decision criterion.Yeshttps://us.sagepub.com/en-us/nam/manuscript-submission-guideline

Type 2 diabetes and psoriasis:links and risks

Jesper Grønlund Holm,1 Simon Francis Thomsen1,2 1Department of Dermato-Venereology, Bispebjerg Hospital, University of Copenhagen, Copenhagen, Denmark; 2Department of Biomedical Sciences, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark Abstract: Psoriasis (PsO) is one of the most common chronic inflammatory skin diseases with a world prevalence of 2%–4%. The increasing knowledge of the mechanisms driving PsO has raised focus on existing links to metabolic syndrome and type 2 diabetes (T2D). We reviewed the existing literature of the prevalence and risk of T2D in patients with PsO. The studies reviewed were mainly large retrospective cohort and case–control studies, showing an increased prevalence of T2D in PsO patients compared to controls, particularly in late onset (type 2) PsO. T2D prevalence did not correlate to patient age or severity of PsO in the reviewed studies. Conclusively, T2D was found to be more prevalent in patients with PsO compared to the background population. Several mechanisms involved in lipid transportation seem to be upregulated in PsO patients. Physicians play a key role concerning information about known comorbidity and promotion of early prophylaxis in patients with PsO. Keywords: psoriasis, type 2 diabetes, association, risk, lin