The Impact of Professional Development on Trauma-Informed Practices (TIPs) in a Teacher\u27s Feeling of Self-Efficacy

The purpose of this quantitative, quasi-experimental, static-group comparison design study was to determine the increase or decrease of self-efficacy for elementary and secondary teachers regarding instructional strategies, student engagement, and classroom management after professional development in TIPs. TIPs in the school setting provide comprehensive interventions to address childhood trauma that could promote positive academic progress. There has been little research provided on the impact of TIPs regarding instructional strategies, student engagement, and classroom management as it relates to teacher-efficacy. The results of this study found significant differences in survey responses from teachers in two school districts. The Teachers’ Sense of Efficacy Scale (TSES) was utilized to collect data on teacher’s sense of self- efficacy from 100 teachers in two urban school districts in Mississippi. According to the results of three independent t tests, there is an indication that TIPs may impact teacher self-efficacy. Teachers do not receive appropriate training at the university level to overcome the effects of trauma in the classroom setting; therefore, professional development in TIPs should be implemented at the school level. The researcher recommends further research into the role of TIPs at improving social-emotional learning of students and increasing teacher self-efficacy

In-Tank Processing (ITP) Geotechnical Summary Report

A geotechnical investigation has been completed for the In Tank Processing Facility (ITP) which consists of buildings 241-96H and 241-32H; and Tanks 241-948H, 241-949H, 241-950H, and 241-951H. The investigation consisted of a literature search for relevant technical data, field explorations, field and laboratory testing, and analyses. This document presents a summary of the scope and results to date of the investigations and engineering analyses for these facilities. A final geotechnical report, which will include a more detailed discussion and all associated boring logs, laboratory test results, and analyses will be issued in October 1994.The purpose of the investigation is to obtain geotechnical information to evaluate the seismic performance of the foundation materials and embankme nts under and around the ITP. The geotechnical engineering objectives of the investigation are to: 1) define the subsurface stratigraphy, 2) obtain representative engineering properties of the subsurface materials, 3) assess the competence of the subsurface materials under static and dynamic loads, 4) derive properties for seismic soil-structure interaction analysis, 5) evaluate the areal and vertical extent of horizons that might cause dynamic settlement or instability, and 6) determine settlement at the foundation level of the tanks

Evaluation of Cross-Hole Seismic Tomography for Imaging Low Resistance Intervals and Associated Carbonate Sediments in Coastal Plain Sequences on the Savannah River Site, South Carolina

The objectives of the pilot study were to investigate the limitations of the technique for imaging the presence, extent, and boundaries of the low-resistance intervals and associated carbonate sediments

Ground penetrating radar and direct current resistivity evaluation of the desiccation test cap, Savannah River Site

The Savannah River Site (SRS) has a variety of waste units that may be temporarily or permanently stabilized by closure using an impermeable cover to prevent groundwater infiltration. The placement of an engineered kaolin clay layer over a waste unit is an accepted and economical technique for providing an impermeable cover but the long term stability and integrity of the clay in non-arid conditions is unknown. A simulated kaolin cap has been constructed at the SRA adjacent to the Burial Ground Complex. The cap is designed to evaluate the effects of desiccation on clay integrity, therefore half of the cap is covered with native soil to prevent drying, while the remainder of the cap is exposed. Measurements of the continuing impermeability of a clay cap are difficult because intrusive techniques may locally compromise the structure. Point measurements made to evaluate clay integrity, such as those from grid sampling or coring and made through a soil cover, may miss cracks, joints or fissures, and may not allow for mapping of the lateral extent of elongate features. Because of these problems, a non-invasive technique is needed to map clay integrity, below a soil or vegetation cover, which is capable of moderate to rapid investigation speeds. Two non-intrusive geophysical techniques, direct current resistivity and ground penetrating radar (GPR), have been successful at the SRS in geologically mapping shallow subsurface clay layers. The applicability of each technique in detecting the clay layer in the desiccation test cap and associated anomalies was investigated

Oligo-Miocene extensional tectonics and fluid flow across the Northern Snake Range detachment system, Nevada

The Northern Snake Range (Nevada) represents a spectacular example of a metamorphic core complex and exposes a complete section from the mylonitic footwall into the hanging wall of a fossil detachment system. Paired geochronological and stable isotopic data of mylonitic quartzite within the detachment footwall reveal that ductile deformation and infiltration of meteoric fluids occurred between 27 and 23 Ma. 40Ar/39Ar ages display complex recrystallization-cooling relationships but decrease systematically from 26.9 ± 0.2 Ma at the top to 21.3 ± 0.2 Ma at the bottom of footwall mylonite. Hydrogen isotope (δD) values in white mica are very low (-150 to-145 ‰) within the top 80-90 m of detachment footwall, in contrast to values obtained from the deeper part of the section where values range from-77 to-64 ‰, suggesting that time-integrated interaction between rock and meteoric fluid was restricted to the uppermost part of the mylonitic footwall. Pervasive mica-water hydrogen isotope exchange is difficult to reconcile with models of 40Ar loss during mylonitization solely by volume diffusion. Rather, we interpret the 40Ar/ 39Ar ages of white mica with low-δD values to date syn-mylonitic hydrogen and argon isotope exchange, and we conclude that the hydrothermal system of the Northern Snake Range was active during late Oligocene (27-23 Ma) and has been exhumed by the combined effects of ductile strain, extensional detachment faulting, and erosion. Copyright 2011 by the American Geophysical Union

Argon redistribution during a metamorphic cycle: Consequences for determining cooling rates

40Ar/39Ar thermochronology is commonly used to constrain the rates and times of cooling in exhumed metamorphic terranes, with ages usually linked to temperature via Dodson's closure temperature (TC) formulation. Whilst many metamorphic 40Ar/39Ar data are consistent with the timing of crystallisation or cooling within a chronological framework defined by other, higher temperature, chronometers, other 40Ar/39Ar data are more difficult to interpret. We report white mica and biotite single grain fusion and laser ablation 40Ar/39Ar ages from felsic gneisses from the Western Gneiss Region, Norway. The rocks record isothermal decompression from peak eclogite-facies conditions (white mica stable) to amphibolite-facies conditions (biotite stable) at c. 700 °C. White mica and biotite yield dispersed single grain fusion dates from 416 to 373 Ma and 437 to 360 Ma respectively. In-situ laser ablation analyses provide a similar range, with white mica spot ages ranging from 424 to 370 Ma and biotite spot ages ranging from 437 to 370 Ma. The dates span the duration of the metamorphic cycle suggested by previous studies, and cannot be reconciled with the results of simple models of Ar loss by diffusion during cooling. Samples that show evidence for different physical processes, such as the chemical breakdown of white mica, partial melting, and fluid ingress, generated different age populations to samples that did not experience or record obvious petrological evidence for these processes. Samples that record significant recrystallization and deformation yielded younger white mica (but older biotite) single grain fusion ages than more pristine samples. Amphibolite-facies gneisses that preserve evidence for significant partial melting generated younger biotite ages than samples that recorded evidence for significant hydration. Our data support other reported observations that high-temperature metamorphic mica 40Ar/39Ar dates cannot be assumed to record the timing of cooling through a specific temperature window. Careful assessment of the petrographic context of the dated minerals and consideration of their post-crystallisation history may provide a more robust insight into whether ‘age’ links to ‘stage’ in a temporally meaningful way

Basement Surface Faulting and Topography for Savannah River Site and Vicinity

This report integrates the data from more than 60 basement borings and over 100 miles of seismic reflection profiling acquired on the Savannah River Site to map the topography of the basement (unweathered rock) surface and faulting recorded on this surface

Magnetic survey of the Risher Road Open Metal Pit Waste Unit

The Risher Road Waste Unit is located at the base of a small bluff (approximately 30 ft high) composed of sand and gravel. Due to collapse of the face of the bluff a steep slope of colluvium has formed at the base. The area of investigation is located on the slope of colluvium, and is marked by the presence of two pin flags spaced approximately 25 ft apart parallel to the bluff face. In order to investigate the presence of buried metallic material that might indicate waste containers or other wash beneath the colluvial slope a magnetometer survey was conducted in and around the vicinity of the pin flags. The survey consisted of a 5-ft by 5-ft square grid node pattern in a 40-ft by 60-ft rectangle. Magnetic field and gradient anomalies were detected in the locations of the pin flags and can be attributed to the ferric composition of the pin flag shafts. Other magnetic field and gradient variations are at background levels and do not indicate the presence of buried ferric objects of any significant size

Magnetic Survey of K-Area Bingham Pump Outage Pit

A magnetic survey was conducted at the K-Area Bingham Pump Outage Pit to locate buried metallic construction material placed in the pit. The survey was defined by survey lines spaced 10 feet apart and oriented subperpendicular to the pit elongation direction with survey stations spaced at 5-foot intervals along each line. This arrangement resulted in a 10-foot by 5-foot rectangular grid node pattern. The magnetic survey resolved a linear array of magnetic field and gradient anomalies that result from ferric material buried in the pit. The magnetic survey also resolved other isolated anomalies from ferric sources such as signs and monuments located on the surface. Comparison of the magnetic survey data with radar transects collected in a previous survey indicates that the magnetic anomalies, in most cases, correlate well with diffractions in the radar data. At locations where the anomalies and diffractions do not correlate well, it appears that the radar transect did not pass directly over the anomaly source, resulting in off-line, three-dimensional (3-D) effects in the radar data. Based on the comparison of the two methods, the magnetic data resolves the part of the trench containing the ferrous material; however, the radar data are sensitive to disturbed soil and can resolve the trench boundaries in the absence of buried metallic material

Magnetic Survey of the Hydroflouric Acid Spill Area

A magnetic survey was conducted at the Hydroflouric Acid Spill Area to evaluate the possibility of buried metal containers or other ferric objects. A proton precession gradiometer with the bottom sensor 2 ft and the top sensor 4 ft from the ground surface was used to sample the survey area on a grid defined by 1 meter grid nodes in a square array. The survey area was surrounded on three sides by a metal fence and metal recycling facility. The fence and metal objects adjacent to the fence, in addition to metal associated with hydrologic monitoring well heads, waste unit marker balls and metal signs caused significant magnetic field and gradient anomalies that extended throughout most of the survey area. In addition to these easily explained anomalies, several anomalies were detected which probably result from buried ferric objects. Some of these anomalies are of limited aerial extent and magnitude and probably represent small shallow objects. However, at least one of the anomalies is of sufficient magnitude and extent that it may represent a large metal container such as a metal drum