Background:Middle-aged women have less postural control than younger women. The Star Excursion Balance Test is a functional and inexpensive postural control measurement tool that is sensitive to age-related changes in balance.Hypothesis:The middle-aged females will experience lower excursion scores compared with the younger women.Methodology:Fifty-three healthy, recreationally active women were divided into 2 groups: adult-aged (n = 29; age range, 23-39 years) and middle-aged (n = 24; age range, 40-54 years). Each participant performed 3 reaches for 3 trials (anteromedial, medial, posteromedial) in a randomized order. The 3 reach trials were converted to a normalized value (percentage of participant’s height) and assessed as an overall mean for the 1-way analysis of variance. Intraclass correlation coefficients and 95% confidence intervals were calculated.Results:No differences were found for body mass index and height; however, age was different between groups (P < 0.01). Intraclass correlation coefficient2,3 values for the 3 directions ranged from 0.72 to 0.97. The adult-aged women were able to reach farther in all 3 directions when tested with the Star Excursion Balance Test (6.8-7.6 cm, P < 0.05).Conclusion:Lower postural control scores based on the Star Excursion Balance Test were found for the older women. The younger women were able to reach approximately 7 cm farther during the anterior, anteromedial, and posteromedial excursions.

Trusting simulation output is crucial for Sandia's mission objectives. We rely on these simulations to perform our high-consequence mission tasks given national treaty obligations. Other science and modeling applications, while they may have high-consequence results, still require the strongest levels of trust to enable using the result as the foundation for both practical applications and future research. To this end, the computing community has developed workflow and provenance systems to aid in both automating simulation and modeling execution as well as determining exactly how was some output was created so that conclusions can be drawn from the data.

A cryogenically cooled hardware platform has been developed and commissioned on the Z Facility at Sandia National Laboratories in support of the Magnetized Liner Inertial Fusion (MagLIF) Program. MagLIF is a magneto-inertial fusion concept that employs a magnetically imploded metallic tube (liner) to compress and inertially confine premagnetized and preheated fusion fuel. The fuel is preheated using a ∼2 kJ laser that must pass through a ∼1.5-3.5-μm-thick polyimide "window" at the target's laser entrance hole (LEH). As the terawatt-class laser interacts with the dense window, laser plasma instabilities (LPIs) can develop, which reduce the preheat energy delivered to the fuel, initiate fuel contamination, and degrade target performance. Cryogenically cooled targets increase the parameter space accessible to MagLIF target designs by allowing nearly 10 times thinner windows to be used for any accessible gas density. Thinner LEH windows reduce the deleterious effects of difficult to model LPIs. The Z Facility's cryogenic infrastructure has been significantly altered to enable compatibility with the premagnetization and fuel preheat stages of MagLIF. The MagLIF cryostat brings the liquid helium coolant directly to the target via an electrically resistive conduit. This design maximizes cooling power while allowing rapid diffusion of the axial magnetic field supplied by external Helmholtz-like coils. A variety of techniques have been developed to mitigate the accumulation of ice from vacuum chamber contaminants on the cooled LEH window, as even a few hundred nanometers of ice would impact laser energy coupling to the fuel region. The MagLIF cryostat has demonstrated compatibility with the premagnetization and preheat stages of MagLIF and the ability to cool targets to liquid deuterium temperatures in approximately 5 min.

When Colorado Democratic Governor Jared Polis approved Senate Bill 181, this new law significantly redirected the historical focus of Colorado oil and gas regulation. This provided a significant delegation of land use related authority to local government for the first time since the passage of this Act in 1951. This new law moved away from the traditional notion of statewide regulation based upon exclusive jurisdiction by the Colorado Oil and Gas Conservation Commission (“COGCC”). While this change of legislative focus is significant, this latest direction is probably a natural continuation of a general trend that has been emerging in Colorado since certain Supreme Court Opinions were announced in 1992, as explained later in this Article. As the State of Colorado has, among other things, grown in population, residential housing now significantly finds itself competing with oil and gas development in the same geographical areas, especially the suburbs of the “Front Range.” Simultaneously, the political sentiment of Colorado has trended into a more significantly Democratic direction from a historically Republican majority. The law as to the governance of the oil and gas industry has now changed as a result of the passing of SB 181—from fostering the development of oil and gas industry to a new paradigm requiring the weighing of interests, including environmental concerns. This Article provides a historic explanation to allow the reader to better understand how this transition has come about. That which is observed in Colorado might also be seen as a potential harbinger of future change that could be noted in other oil and gas states.