1,505 research outputs found
Comparing Aerial Lidar Observations with Terrestrial Lidar and Snow-Probe Transects from NASA\u27s 2017 SnowEx Campaign
NASA\u27s 2017 SnowEx field campaign at Grand Mesa, CO, generated Airborne Laser Scans (ALS), Terrestrial Laser Scans (TLS), and snowâprobe transects, which allowed for a comparison between snow depth measurement techniques. At six locations, comparisons between gridded ALS and TLS observations, at 1âm resolution, had a median snow depth difference of 5 cm, rootâmeanâsquare difference of 16 cm, meanâabsolute difference of 10 cm, and 3âcm difference in standard deviation. ALS generally had greater but similar snow depth values to TLS, and results were not sensitive to the gridded cell size between 0.5 and 5 m. The greatest disagreements were where snowâoff TLS scans had shrubs and high incidence angles, leading to deeper snow depths (\u3e10 cm) from ALS than TLS. The low vegetation and oblique angles caused occlusion in the TLS data and thus produced higher snowâoff bare Earth models relative to the ALS. Furthermore, in subcanopy areas where both ALS and TLS data existed, snow depth differences were comparable to differences in the open. Meanwhile, median values from 52 snowâprobe transects and nearâcoincident ALS data had a mean difference of 6 cm, rootâmeanâsquare difference of 8 cm, meanâabsolute difference of 7 cm, and a mean difference in the standard deviation of 1 cm. Snow depth probes had greater but similar snow depth values to ALS. Therefore, based on comparisons with TLS and snow depth probes, ALS captured snow depth magnitude with better than or equal agreement to what has been reported in previous studies and showed the ability to capture highâresolution spatial variability
Improving Hospital Patient Safety Through Teamwork: The Use of TeamSTEPPS in CAHs (Policy Brief #21)
This brief, one in a series identifying and assessing evidence-based patient safety and quality improvement interventions appropriate for use by state Flex Programs and CAHs, reviews teamwork and team training which have become a standard, evidence-based intervention in small and larger hospitals alike. The focus is on TeamSTEPPS, a training program developed and disseminated by the Department of Defense and the Agency for Healthcare Research and Quality.
Key Findings: State Flex programs and CAHs have successfully adapted and used TeamSTEPPS to improve patient safety through team training. The evidence indicates that team training increases communications and reduces error. The success of TeamSTEPPS depends on having appropriate expectations and identifying and cultivating internal champions. Building a patient safety infrastructure helps sustain teamwork
Verwey transition in FeO at high pressure: quantum critical behavior at the onset of metallization
We provide evidence for the existence of a {\em quantum critical point} at
the metallization of magnetite FeO at an applied pressure of GPa. We show that the present ac magnetic susceptibility data
support earlier resistivity data. The Verwey temperature scales with pressure
, with . The resistivity data shows a
temperature dependence , with above and
2.5 at the critical pressure, respectively. This difference in with
pressure is a sign of critical behavior at . The magnetic susceptibility
is smooth near the critical pressure, both at the Verwey transition and near
the ferroelectric anomaly. A comparison with the critical behavior observed in
the Mott-Hubbard and related systems is made.Comment: 5 pages, 5 figure
Photography as a Wellness Tool for Counselors-in-Training
The academic journey to become a professional counselor can be challenging for counselors-in-training (CIT), adversely affecting their physical health, mental health, and wellness. Counselor educators (CE) have recognized a need for wellness training and interventions to assist CIT during graduate school and to prepare them for their careers. Photography is considered a tool in art therapy within the realm of expressive therapies that can be used for wellness purposes. We review wellness, CIT struggles with wellness, expressive therapies, and photography techniques to promote CIT professional development and wellness practices. We identify the history of photography tools, describe each tool more precisely, and provide examples of how they can aid CIT in addressing their health and wellness and increasing their knowledge and use of photography as a wellness tool with future clients. We discuss practice and research implications for CE and CIT
Fission Yeast CSL Transcription Factors: Mapping Their Target Genes and Biological Roles
BACKGROUND: Cbf11 and Cbf12, the fission yeast CSL transcription factors, have been implicated in the regulation of cell-cycle progression, but no specific roles have been described and their target genes have been only partially mapped. METHODOLOGY/PRINCIPAL FINDINGS: Using a combination of transcriptome profiling under various conditions and genome-wide analysis of CSL-DNA interactions, we identify genes regulated directly and indirectly by CSL proteins in fission yeast. We show that the expression of stress-response genes and genes that are expressed periodically during the cell cycle is deregulated upon genetic manipulation of cbf11 and/or cbf12. Accordingly, the coordination of mitosis and cytokinesis is perturbed in cells with genetically manipulated CSL protein levels, together with other specific defects in cell-cycle progression. Cbf11 activity is nutrient-dependent and Îcbf11-associated defects are mitigated by inactivation of the protein kinase A (Pka1) and stress-activated MAP kinase (Sty1p38) pathways. Furthermore, Cbf11 directly regulates a set of lipid metabolism genes and Îcbf11 cells feature a stark decrease in the number of storage lipid droplets. CONCLUSIONS/SIGNIFICANCE: Our results provide a framework for a more detailed understanding of the role of CSL proteins in the regulation of cell-cycle progression in fission yeast
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