Spectroscopic Confirmation of the Dwarf Galaxies Hydra II and Pisces II and the Globular Cluster Laevens 1

We present Keck/DEIMOS spectroscopy of stars in the recently discovered Milky Way satellites Hydra II, Pisces II, and Laevens 1. We measured a velocity dispersion of 5.4 (+3.6 -2.4) km/s for Pisces II, but we did not resolve the velocity dispersions of Hydra II or Laevens 1. We marginally resolved the metallicity dispersions of Hydra II and Pisces II but not Laevens 1. Furthermore, Hydra II and Pisces II obey the luminosity-metallicity relation for Milky Way dwarf galaxies ( = -2.02 +/- 0.08 and -2.45 +/- 0.07, respectively), whereas Laevens 1 does not ( = -1.68 +/- 0.05). The kinematic and chemical properties suggest that Hydra II and Pisces II are dwarf galaxies, and Laevens 1 is a globular cluster. We determined that two of the previously observed blue stars near the center of Laevens 1 are not members of the cluster. A third blue star has ambiguous membership. Hydra II has a radial velocity = 303.1 +/- 1.4 km/s, similar to the leading arm of the Magellanic stream. The mass-to-light ratio for Pisces II is 370 (+310 -240) M_sun/L_sun. It is not among the most dark matter-dominated dwarf galaxies, but it is still worthy of inclusion in the search for gamma rays from dark matter self-annihilation.Comment: Accepted to ApJ. v2 has been revised in response to the referee's repor

A Framework for Categorization of Industrial Control System Cyber Training Environments

First responders and professionals in hazardous occupations undergo training and evaluations for the purpose of mitigating risk and damage. For example, helicopter pilots train with multiple categorized simulations that increase in complexity before flying a real aircraft. However in the industrial control cyber incident response domain, where incident response professionals help detect, respond and recover from cyber incidents, no official categorization of training environments exist. To address this gap, this thesis provides a categorization of industrial control training environments based on realism. Four levels of environments are proposed and mapped to Blooms Taxonomy. This categorization will help organizations determine which training environment best aligns with their training needs and budgets

Stage of Change Discrepancies Among Individuals with Dementia and Caregivers

The Transtheoretical Model (TTM) of behavior change outlines a five-step categorization of stages that delineate an individual\u27s readiness to alter a behavior. This model has been used as a basis for understanding the behavioral change process and for tailoring interventions (e.g., smoking cessation and weight management). Little research exists, however, applying the TTM to behaviors among individuals with dementia (IWD) and their caregivers (CGs). Unlike many other behavior changes, the changes associated with adapting to and coping with dementia often rely on changes in both the CG and the IWD. Based on this cooperative aspect of the IWD/CG dyad, it was hypothesized that larger dyad discrepancies would predict poorer psychosocial well-being, as measured by depression, anxiety, quality of life, and relationship strain. This hypothesis, however, was not supported. This paper will discuss the literature to date, the psychometric testing of a novel Readiness to Change measure in this population, and future directions for this fiel