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"Justin Lowe"
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The party - for Tony Abbott
I was taught not to put too much stock in the corporeal...
Journal Article
The child is the father
I find myself alone in a breezy attic maybe some sort of open plan, split-level affair...
Journal Article
I killed a bee this morning I mistook for a wasp
And afterwards I recline in my usual spot. Ristovic lies dog-eared beside me and beside him the dog...
Journal Article
The Implementation, Efficacy, and Work Psychological Need Satisfaction of a Connecticut High School’s Teacher-Driven Professional Learning Model
Professional development (PD) is an essential part of teacher growth. Using a case-based concurrent exploratory and confirmatory mixed-methods design, this study investigated what occurs when traditional structures of PD were supplanted with new teacher-driven models of staff development. This case study explored the implementation and efficacy of a teacher-driven learning model based on two types of PD: an on-site teacher-driven professional development (TD-PD) model that is developed and led by teachers in accordance with their self-determined needs and an off-site cooperative professional learning (CO-OP) model where teachers were provided hands on learning with teacher mentors in other educational organizations. The purpose of this case study was to find research on teacher-driven professional development, explore the components, perceptions, and impact of a school-based model of PD that is designed and led by teachers, describe the implementation processes and salient factors, and evaluate the significance of this model on teacher self-efficacy and Basic Psychological Need Satisfaction at Work (BPNSW). The findings indicate that after a yearlong TD-PD model, teachers showed a statistically significant increase in total self-efficacy. Teachers who performed the COOP indicated higher self-efficacy scores on four out of five items, however, when isolating the CO-OP variable, a descriptive statistical analysis indicated no significance for total self-efficacy or BPNSW. Inferential statistics indicate that the findings are not generalizable. Data derived from focus groups and interviews suggests an overall satisfaction with TD-PD, but a need for developing a clear vision for the future and a deeper culture of TD-PD.
Dissertation
A Petrographic, Geochemical, and Geochronological Investigation of Gold Mineralization at the Lone Tree Gold Mine, Battle Mountain, Nevada
The Lone Tree gold deposit, located in the Battle Mountain district in Humboldt County, Nevada, is hosted in siliciclastic rocks positioned stratigraphically above the Roberts Mountains thrust fault. The gold mineralization is spatially associated with and cross-cuts several rhyolite dikes in the mine. Both the dikes and siliciclastic host rocks are variably argillized, sericitized, and silicified. The gold mineralization is associated with an alteration assemblage of quartz, sericite, pyrite, and arsenopyrite. Clay alteration and dolomitization were also observed with the gold mineralization. The strongest geochemical correlations to the gold mineralization are silver, arsenic, antimony, copper, and mercury. Electron microprobe characterization of sulfides at Lone Tree identified gold-bearing arsenopyrite, pyrite, and sphalerite. Arsenopyrite was the most common ore mineral and showed the highest gold grades. The ore texture is commonly gold-rich arsenopyrite rims around less mineralized pyrite cores, which are disseminated throughout the host rock and in veinlets and breccias. Chalcopyrite, tennantite and most of the sphalerite does not contain detectable gold, whereas most of the pyrite and arsenopyrite was above the EMP detection limit with respect to gold. Although most of the gold occurs in the quartz and sulfide breccia veins, some gold also occurs in rhyolitic dikes crosscutting the sedimentary rocks, with elevated grades at the dike margins where alteration is strongest. CA-TIMS analysis of zircon grains indicate that the intrusions were emplaced during the Eocene (40.95 ± 0.03 Ma), providing a maximum age of mineralization.
Dissertation
Evaluation of a new construction pavement section using the mechanistic-empirical pavement design guide
The AASHTO Mechanistic-Empirical Design Guide (MEPDG) is one of several “next generation” pavement design approaches intended to address limitations of older empirical methods. This research investigated the capabilities and performance of the MEPDG through analyses of an empirically-designed section of NH Route 16, which the New Hampshire Department of Transportation (NHDOT) indicated may be under-designed. MEPDG distress predictions indicate that the pavement section should achieve a service life of at least 10 years. This was supported by the fatigue analysis of the base course, which also indicated that the pavement may have been damaged by traffic loads prior to the completion of the surface course. During this research, a number of limitations and model behaviors of the MEPDG were observed, some with significant importance to this analysis and to future projects within New Hampshire. Because implementation and full realization of the MEPDG requires significant investment, the results of this research should be considered before undertaking steps towards adoption of the software.
Dissertation