Professional Learning Communities in an Elementary School: Teacher Perceptions, Implementation, and Impacts

The Every Student Succeeds Act (2015), signed into law by President Obama, reauthorized the elementary and secondary education act for K-12 students across the nation. A main component of ESSA resides with the professional development of teachers and administrators. The definition of teacher professional development by Learning Forward (2017) involves a sustained professional learning community (PLC) which is collaborative, intensive, job-embedded, and data driven. The idea of PLCs as a means of teacher professional development is the current popular trend amongst K-12 education (DuFour, 2004). PLCs are creating opportunities for teachers to collaborate regarding many aspects of the education profession. In this report, I provide a critical analysis of PLCs (DuFour, 2004) and teachers’ perceptions of PLCs. Implementation and impacts of PLCs are analyzed from teacher survey responses and semi-structured interview responses. An overview of results will articulate findings within the six dimensions of PLCs, identified in PLCA-R survey and through semi-structured interviews. Findings from the PLCA-R survey, survey comments and semi structured interviews reveal dimensions that had a low mean score, Shared Personal Practice vs areas of strength within Supportive Conditions – Relationships dimension. Keywords: Professional Learning Communities, Andragogy, Transformative Leadership, Constructivism, Distributive Leadership, Teacher Capacit

Future of Celestial Navigation and the Ocean-Going Military Navigator

The problem of this study was to evaluate the viability of continuing celestial navigation instruction for ocean-going military navigators sailing into a technologically changing future

Population Genetics And Mixed Stock Analysis Of Chum Salmon (Oncorhynchus Keta) With Molecular Genetics

Thesis (Ph.D.) University of Alaska Fairbanks, 2012Chum salmon (Oncorhynchus keta) are important for subsistence and commercial harvest in Alaska. Variability of returns to western Alaskan drainages that caused economic hardship for stakeholders has led to speculation about reasons, which may include both anthropogenic and environmental causes in the marine environment. Mixed stock analysis (MSA) compares genetic information from an individual caught at sea to a reference baseline of genotypes to assign it to its population of origin. Application of genetic baselines requires several complex steps that can introduce bias. The bias may reduce the accuracy of MSA and result in overly-optimistic evaluations of baselines. Moreover, some applications that minimize bias cannot use informative haploid mitochondrial variation. Costs of baseline development are species-specific and difficult to predict. Finally, because populations of western Alaskan chum salmon demonstrate weak genetic divergence, samples from mixtures cannot be accurately assigned to a population of origin. The chapters of this thesis address three challenges. The first chapter describes technical aspects of genetic marker development. The second chapter describes a method to evaluate the precision and accuracy of a genetic baseline that accepts any type of data and reduces bias that may have been introduced during baseline development. This chapter also includes a method that places a cost on baseline development by predicting the number of markers needed to achieve a given accuracy. The final chapter explores the reasons for the weak genetic structure of western Alaskan chum salmon populations. The results of those analyses and both geological and archaeological data suggest that recent environmental and geological processes may be involved. The methods and analyses in this thesis can be applied to any species and may be particularly useful for other western Alaskan species

Strategic indicators for characterization of water system infrastructure and management

Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Civil and Environmental Engineering, 2001.Includes bibliographical references (p. 196-203).Shifts in the US water industry are characteristic of the flux found across all infrastructure sectors. Economic, environmental, market, regulatory and systemic forces are pushing the industry toward a different future where challenges of significant capital formation, competitiveness, efficiency and resource allocation will be prevalent. Amidst these drivers, longstanding assumptions about water provision and management are under scrutiny. The path forward remains unsettled as industry players debate the role of the federal government in financing pending capital challenges. The two sides of the debate describe divergent paths, and the one taken will define the industry's near-term structure. One hand indicates a pending crisis that necessitates substantial federal assistance while the other suggests staying the course towards self-sufficiency.(cont.) Missing from these discussions is objective evidence concerning the state of the industry. To supply the missing component, this thesis develops and applies a rational methodology to characterize a national cross section of large water systems. The methodology provides a basis for (a) understanding the state of systems within the national portfolio and (b) guiding strategic assessment and policy development. A set of common, core indicators are deployed that rely upon widely available operating and financial data and make use of thresholds that serve as estimates of industry-wide averages or standards. Once applied, the indicators provide grounds for describing an enterprise's structure and core functions as well as assessing both capital needs and opportunities. The evidence indicates that large systems are adequately positioned to handle near-term capital challenges, so an expanded federal role is unnecessary. In addition, alternatives that might improve national water provision remain largely untested, so policies and strategies that support exploration of these approaches are recommended. The work presented is a key step toward normalizing an industry.by Michael J. Garvin.Ph.D

Competing in a decentralized and sustainable world : future organizations in the hazardous waste remediation industry

Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Civil and Environmental Engineering, 1995.Includes bibliographical references (leaves 134-139).by Michael J. Garvin, II.M.S

Sedimentology of Martian Gravels from Mardi Twilight Imaging: Techniques

Quantitative sedimentologic analysis of gravel surfaces dominated by pebble-sized clasts has been employed in an effort to untangle aspects of the provenance of surface sediments on Mars using Curiosity's MARDI nadir-viewing camera operated at twilight Images have been systematically acquired since sol 310 providing a representative sample of gravel-covered surfaces since the rover departed the Shaler region. The MARDI Twilight imaging dataset offers approximately 1 millimeter spatial resolution (slightly out of focus) for patches beneath the rover that cover just under 1 m2 in area, under illumination that makes clast size and inter-clast spacing analysis relatively straightforward using semi- automated codes developed for use with nadir images. Twilight images are utilized for these analyses in order to reduce light scattering off dust deposited on the front MARDI lens element during the terminal stages of Curiosity's entry, descent and landing. Such scattering is worse when imaging bright, directly-illuminated surfaces; twilight imaging times yield diffusely-illuminated surfaces that improve the clarity of the resulting MARDI product. Twilight images are obtained between 10-30 minutes after local sunset, governed by the timing of the end of the no-heat window for the camera. Techniques were also utilized to examine data terrestrial locations (the Kau Desert in Hawaii and near Askja Caldera in Iceland). Methods employed include log hyperbolic size distribution (LHD) analysis and Delauney Triangulation (DT) inter-clast spacing analysis. This work extends the initial results reported in Yingst et al., that covered the initial landing zone, to the Rapid-Transit Route (RTR) towards Mount Sharp