The vortex solid-vortex liquid transition, i. e., the vortex lattice (vortex glass) melting line, Hm(T) (Hg(T)) is the most heavily studied phase boundary in the H-T phase diagram of type-II superconductors. Debate has continued for many decades as to the nature of the transition and of the vortices themselves. The vortex glass melting transition has been investigated in the type -II superconducting compounds YBa₂Cu₃O7-delta, YBa₂Cu₃O₆.₅ , Y(1-x)Pr(x)Ba₂Cu₃O₆.₉₇, MgB₂, and CeRu₂. By performing measurements of magnetoresistivity, rho(H, T), voltage- current V-I , and magnetization, M(H,T), and by analyzing the behavior in the region of the melting transition, physical properties of the host materials and how these contribute to the nature of the melting transition have been revealed

Physicians increasingly investigate, work, and teach to improve the quality of care and safety of care delivery. The Society of General Internal Medicine Academic Hospitalist Task Force sought to develop a practical tool, the quality portfolio, to systematically document quality and safety achievements. The quality portfolio was vetted with internal and external stakeholders including national leaders in academic medicine. The portfolio was refined for implementation to include an outlined framework, detailed instructions for use and an example to guide users. The portfolio has eight categories including: (1) a faculty narrative, (2) leadership and administrative activities, (3) project activities, (4) education and curricula, (5) research and scholarship, (6) honors, awards, and recognition, (7) training and certification, and (8) an appendix. The authors offer this comprehensive, yet practical tool as a method to document quality and safety activities. It is relevant for physicians across disciplines and institutions and may be useful as a standalone document or as an adjunct to traditional promotion documents. As the Next Accreditation System is implemented, academic medical centers will require faculty who can teach and implement the systems-based practice requirements. The quality portfolio is a method to document quality improvement and safety activities.

The khmer package is a freely available software library for working efficiently with fixed length DNA words, or k-mers. khmer provides implementations of a probabilistic k-mer counting data structure, a compressible De Bruijn graph representation, De Bruijn graph partitioning, and digital normalization. khmer is implemented in C++ and Python, and is freely available under the BSD license at https://github.com/dib-lab/khmer/.