5,613 research outputs found
LANDSAT derived snowcover as an input variable for snowmelt runoff forecasting in south central Colorado
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Nurse Practitioner Screening for Adverse Childhood Outcomes in Adult Primary Care
Adverse childhood experiences (ACE) contribute to negative health outcomes. The impact of ACE is linked with physical, mental, and developmental disruption, increase in health-risk behaviors, and increased healthcare utilization. Approximately sixty percent of the US population reports a history of ACE. Despite this growing evidence that ACE is associated with health problems, primary care providers infrequently screen patients for ACE, nor do they consider the impact of ACE on health. The lack of routine screening for ACE in primary care represents lost opportunities to impact health outcomes and promote wellness. The overall goal of this project is to translate research to practice through screening for ACE in an adult primary care clinic. To accomplish this goal, brief interviews were conducted with 71 adult patients in a busy primary care clinic over a 4-week period. The ACE questionnaire, and a post-screening form were used to collect information about ACEs, patient responses, and follow-up recommendations. Descriptive statistics were used to calculate prevalence of ACEs, follow-up recommendations and patient responses to the screening intervention. Findings from the project demonstrated that high ACEs are associated with negative health outcomes and are linked with chronic health problems and increased healthcare utilization. Despite these associations very few patients were receiving counseling. ACE screening times took less time than anticipated and NP student interviewers felt comfortable and confident during the screening intervention. Findings support the need to screen for ACEs in primary care especially in patients with chronic disease
Applications systems verification and transfer project. Volume 4: Operational applications of satellite snow cover observations. Colorado Field Test Center
The study was conducted on six watersheds ranging in size from 277 km to 3460 km in the Rio Grande and Arkansas River basins of southwestern Colorado. Six years of satellite data in the period 1973-78 were analyzed and snowcover maps prepared for all available image dates. Seven snowmapping techniques were explored; the photointerpretative method was selected as the most accurate. Three schemes to forecast snowmelt runoff employing satellite snowcover observations were investigated. They included a conceptual hydrologic model, a statistical model, and a graphical method. A reduction of 10% in the current average forecast error is estimated when snowcover data in snowmelt runoff forecasting is shown to be extremely promising. Inability to obtain repetitive coverage due to the 18 day cycle of LANDSAT, the occurrence of cloud cover and slow image delivery are obstacles to the immediate implementation of satellite derived snowcover in operational streamflow forecasting programs
UV camera conceptual designs for TMT Fiber WFOS
This paper discusses refractive, reflective and catadioptric designs for the Thirty Meter Telescope Fiber Wide Field Optical Spectrograph (WFOS) instrument concept. Custom macros were written to evaluate performance at the detector plane with the grating at the pupil as a function of fiber position in the pseudo-slit and wavelength, and a tolerance analysis has been performed for each design based on best engineering practices to assess performance robustness against opto-mechanical errors. The catadioptric camera appears to provide the best compromise in this regard
Validity and Reliability of the Polar A300\u27s Fitness Test Feature to Predict VO2max
International Journal of Exercise Science 12(4): 393-401, 2019. The Polar A300 fitness watch includes a feature termed the 5-minute fitness test. This feature claims to estimate maximal oxygen consumption (VO2max) in healthy adults. The purpose of this study was to assess the validity and reliability of the Polar A300 “Fitness Test” VO2max estimation feature. Nineteen recreationally active young adult males (n=9) and females (n=10) completed a Bruce protocol treadmill protocol to assess VO2max, followed by two separate 5-minute Polar Fitness Test (VO2max estimation) trials. A Pearson’s r test was used to determine the relationship between VO2max from the Bruce Test to each Polar watch VO2max estimate, as well as to a non-exercise VO2max prediction equation. Additionally, a One Way ANOVA assessed differences in absolute group means of the Polar results to the Bruce Test, and non-exercise prediction model. There was a statistically significant, moderate-strong relationship between the Polar and the criterion Bruce VO2max estimations with the first Polar Test (n=19; r=.635; p\u3c.05), as well as the second (n=19; r=.645; p\u3c.05). The average VO2max of the two Polar tests and the Bruce test show greatest positive correlation (n=19; r=0.655; p\u3c0.001). The reliability of the Polar watch indicated significance between the test-retest results (n=19; r=.907; p\u3c.05). Lastly, the positive correlation between the non-exercise predicted model and the Bruce Test was weaker than the polar predictions (n=19; r=.522; p\u3c.05). Preliminary results conclude that the Polar A300 Fitness watch is a valid tool for estimation of VO2max
Azimuthal and meridional asymmetries of the solar wind and quasiperiodic variations of intensity of Galactic Cosmic Rays (GCR)
The results of analysis of 27 day, annual and quasi-two year variation of galactic cosmic rays (GCR) are presented. The dependence of the periods of 27 day GCR variation on the energy of initial radiation is discovered, according to the data during 1980 of the World network of station in sufficiently wide range of the observed threshold energy. The dependence of the annual variation of GCR is established, according to the data of the Huancayo station in conforming with the change of the polarity of the General Magnetic Field of the Sun (GMFS)
Synthesis and electronic properties of Ruddlesden-Popper strontium iridate epitaxial thin films stabilized by control of growth kinetics
We report on the selective fabrication of high-quality SrIrO and
SrIrO epitaxial thin films from a single polycrystalline SrIrO
target by pulsed laser deposition. Using a combination of X-ray diffraction and
photoemission spectroscopy characterizations, we discover that within a
relatively narrow range of substrate temperature, the oxygen partial pressure
plays a critical role in the cation stoichiometric ratio of the films, and
triggers the stabilization of different Ruddlesden-Popper (RP) phases. Resonant
X-ray absorption spectroscopy measurements taken at the Ir -edge and the O
-edge demonstrate the presence of strong spin-orbit coupling, and reveal the
electronic and orbital structures of both compounds. These results suggest that
in addition to the conventional thermodynamics consideration, higher members of
the SrIrO series can possibly be achieved by kinetic
control away from the thermodynamic limit. These findings offer a new approach
to the synthesis of ultra-thin films of the RP series of iridates and can be
extended to other complex oxides with layered structure.Comment: 7 pages, 6 figure
Application of synchrotron radiation for measurement of iron red-ox speciation in atmospherically processed aerosols
In this study, ambient atmospheric particulate matter samples were collected using a size-resolved impactor sampler from three urban sites. The purpose of this study is to gain a better understanding of transformations of aerosol-bound iron as it is processed in the atmosphere. Thus, the aerosol samples were artificially aged to represent long-term transport (10 to 40 days) or short-term transport (1 to 10 days) and were measured for iron at several time points. At each time point, iron was measured in each size fraction using three different techniques; 1) inductively coupled plasma-mass spectrometry (ICPMS) for total iron, 2) x-ray absorbance near edge structure (XANES) spectroscopy for the measurement of total Fe(II) and Fe(III), and 3) a wet-chemical method to measure soluble Fe(II) and Fe(III). Prior to aging, the XANES spectroscopy results show that a majority (>60% for each size fraction) of the total iron in the PM is in the form of Fe(III). Fe(III) was shown to be a significant fraction of the soluble iron (sometimes >50%), but the relative significance of Fe(III) was found to vary depending on the site. Overall, the total soluble iron depended on the sampling site, but values ranged from less than 1% up to about 20% of the total iron. Over the course of the 40 day aging period, we found moderate changes in the relative Fe(II)/Fe(III) content. A slight increase was noted in the coarse (>2.5 µm) fraction and a slight decrease in the 0.25 to 0.5 µm fraction. The soluble fraction generally showed (excepting one day) a decrease of soluble Fe(II) prior to 10 days of aging, followed by a relatively constant concentration. In the short-term transport condition, we found that the sub-micron fraction of soluble Fe(II) spikes at 1 to 3 days of aging, then decreases to near the initial value at around 6 to 10 days. Very little change in soluble Fe(II) was observed in the super-micron fraction
What am I allowed to do here?: Online Learning of Context-Specific Norms by Pepper
Social norms support coordination and cooperation in society. With social
robots becoming increasingly involved in our society, they also need to follow
the social norms of the society. This paper presents a computational framework
for learning contexts and the social norms present in a context in an online
manner on a robot. The paper utilizes a recent state-of-the-art approach for
incremental learning and adapts it for online learning of scenes (contexts).
The paper further utilizes Dempster-Schafer theory to model context-specific
norms. After learning the scenes (contexts), we use active learning to learn
related norms. We test our approach on the Pepper robot by taking it through
different scene locations. Our results show that Pepper can learn different
scenes and related norms simply by communicating with a human partner in an
online manner.Comment: The final authenticated publication is available online at
https://doi.org/10.1007/978-3-030-62056-1_1
Electric dipole moments and b- unification in the presence of an intermediate scale in SUSY grand unification
We show that an intermediate gauge symmetry breaking scale can be a
significant source of electric dipole moments for the electron and neutron in
supersymmetric grand unified theories. New phases, similar to that of the CKM
matrix, appear which do not arise from the supersymmetry (SUSY) breaking
operators. To illustrate, we choose some grand unified SUSY models having an
intermediate gauge symmetry breaking scale with some attractive features. We
also show how well the unification hypothesis works in this class of
models.Comment: 14 pages(Latex), 2 PS Figures (uuencoded, epsf.tex
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