We study the effect of quantum fluctuations on the multiphase point of the Heisenberg model with firstand second-neighbor competing interactions and strong uniaxial spin anisotropy D. By studying the structure of perturbation theory we show that the multiphase degeneracy which exists for S=∞ (i.e., for the axial nextnearest-neighbor Ising model) is lifted and that the effect of quantum fluctuat...

The war on cancer was declared 40 years ago. While the potential for reducing deaths is increasing, so are the costs. Finding the right prioritization in our complex world is difficult; we present some interesting facts regarding other wars and aspects of society that are worth reflecting on as we struggle to find the right balance.

Idiopathic environmental intolerance attributed to electromagnetic fields (IEI-EMF) is a controversial condition in which people describe symptoms following exposure to electromagnetic fields from everyday electrical devices. However, double-blind experiments have found no convincing evidence that electromagnetic fields cause these symptoms. In this study, we assessed whether recent newspaper r...

Several experiments measure the fluorescence light produced by extensive air showers in the atmosphere. This light is converted into a longitudinal shower profile from which information on the primary energy and composition is derived. The fluorescence yield, as the conversion factor between light profile measured by EAS experiments and physical interpretation of showers, has been measured in s...

The transition from residency to independent practice presents unique challenges for physicians. New attending physicians often have unmet learning needs in non-clinical domains. An attending physician is an independent medical practitioner, sometimes referred to as a staff physician or consultant. Peer mentorship has been explored as an alternative to traditional mentorship to meet the learnin...

The decision of whether to rent or own a home should involve an evaluation of the relative risks and the relative costs of the two options. It is often assumed that renting is less risky than homeownership, but that is not always the case. Which option is riskier depends on the risk source and household characteristics. This article provides a framework for understanding the sources of risk for...

In recent years, environmental issues have attracted the attention of enterprises. Enterprises often monitor and control their influence and the effect of their decisions on the environment through cost benefit analysis via an environmental accounting system (EAS). The introduction of EAS is considered a reform for many enterprises, but it is also a challenge for them, particularly with the acc...

This study generalizes the test performed by Simar and Zelenyuk (2007) to examine differences in the technical efficiency among (Formula presented.) groups within an industry (where (Formula presented.)). For this purpose, the (Formula presented.) groups are divided into pairs and each group is compared with all other (Formula presented.) groups. The (Formula presented.) groups can then be clas...

Previous EAS investigations have shown that for a fixed primary energy the charged particle density becomes independent of the primary mass at certain (fixed) distances from the shower axis. This feature can be used as an estimator for the primary energy. We present results on the reconstruction of the primary energy spectrum of cosmic rays from the experimentally recorded S(500) observable (th...

Using a simple model for low-lying positive-parity resonances in 13Be as 10Be x (sd)3 and 12Be1p x (sd), I find that the lowest 5/2+ state is predominantly (sd)3. I give predictions for several additional states. Disciplines Physical Sciences and Mathematics | Physics Comments Fortune, H. T. (2013). Unraveling the structure of 13Be. Physical Review C, 87(1), 014305. doi: 10.1103/ PhysRevC.87.01...