Exploring Adolescent Learning Theory: A Service Learning Case Study

The purpose of this study was to conduct interviews with middle level students and gain insight into the minds and attitudes of adolescent children. Three interviews took place over the course of the semester and were recorded for reference. Throughout this project, the interviews were child-centered and focused on theories and research presented in Sara Powell’s (2020) Introduction to Middle Level Education. A reflection was written at the conclusion of each interview

\u3cb\u3ePersonal Reflection:\u3c/b\u3e A Reflection on Encouraging Critical Thinking and Empathy: Using So-TL to Examine Teaching Effectiveness in a Social Justice in Graduate Education Class

Abstract This essay addresses the search for a more comprehensive and reflective method through which to analyze the efficacy of my teaching approach in a graduate level social justice in education class. I explored tenets of scholarship in teaching and learning as a basis for developing a more coherent and organic assessment approach, with the goal of assisting students to better address the intellectual challenges posed by the discussion and application of sensitive social justice topics. I was also interested in using scholarship of teaching and learning to analyze the effectiveness of the applied anthropological approach, now employed to assist culturally homogeneous graduate students and classroom teachers develop more empathic attitudes towards their international, multi-ethnic classroom population while examining their own approach to student learning outcomes

The relationship between gill Na+ + K+ -activated adenosine triphosphatase activity and sodium regulation in acclimation of the blue crab

Evidence from this study suggests that Na++K+-activated ATPase is involved in the ionic regulation of sodium in the hemo-lymph of the blue crab in low salinity environments. The time course of changes in gill Na++K+-ATPase specific activity follow- ing transfer of crabs from JO o/oo to 5 o/oo salinity indicates that a major increase in activity occurred within 2.5-3.0 hr. Apparently, a 8.8-11.1% decrease in hemolymph sodium ion concen-tration to about J55-J60 meq/1 in approximately 2-J hr was sufficient to activate the ATPase cation transport system in the gills of Callinectes sapidus. Following enzymatic activation, hemolymph sodium concentration gradually approached stabilization at 270-J10 meq/1 within 24 hr. Acclimation to high salinity (30 o/oo)occurred within 2 hr after transfer from 5 o/oo salinity

Sustainment Measures for Fighter Jet Engines

The US Air Force (USAF) has evolved a policy for the acquisition of fighter jet engines (FJE). In the 1970s and 1980s that policy placed a premium on FJE performance primarily measured by the metric: thrust/engine weight. In the 1990s, the USAF policy changed from an emphasis on performance to reduced life-cycle cost with a premium on sustainment. This paper reports the results of a study of how the USAF and Corporation Alpha (Alpha) have adapted their processes, practices, and policies to design, develop, manufacture, test, and sustain a family of FJEs. Each member of the family of FJEs is sequentially linked relative to insertion of technology designed to reduce sustainment costs. In addition to the technology linkages, the development of the family of FJEs selected for this case study is also tracked relative to US Department of Defense and USAF policy and industry design, build, and maintain processes, methods, and tools. This paper discerns the complex, highly integrated manner that characterizes the interaction between (1) technology, (2) policy, and (3) manufacturing and sustainment tools to produce a family of FJEs with improving sustainment qualities and non-degrading performance. The metric Unscheduled Engine Removals (UER) per 1000 Effective Flight Hours (UER/1000EFH) is used to compare the sustainability of each member of the selected family of FJEs. Our results are based on data obtained through a series of field interviews of USAF and civilian government personnel and Alpha personnel. The US government extensive database containing UER information is the primary source of MRO trends for the FJEs of this study. Our analysis shows that the family of FJEs sustainability, as measured by the UER metric, has not improved beyond 6 10 EFH for each succeeding generation in the selected FJE family. We conjecture that upstream policy, technology insertion, and manufacturing and sustainment tools are not the primary determinants of sustainability; the manner in which the FJE is used has the greatest influence on sustainability of FJEs.Society of Automotive Engineers Lean Sustainment Initiativ

Liberia in 2011: Still Ploughing its own Democratic Furrow?

The momentous 2005 Liberian elections followed a devastating civil war. Remarkably, the winner of the presidential race was a woman, Ellen Johnson Sirleaf, and the second-placed was a footballer, George Weah. In addition, in stark contrast to many African elections in particular those in neighbouring Sierra Leone, voting patterns were fragmented: voters often chose President, Senators and Representatives from different parties or independents. Much can be explained by a remarkably level playing-field delivered by an interim coalition government providing no incumbent. In 2011, the Johnson-Sirleaf incumbency stood to significantly change the dynamics. This article seeks to discern whether Liberian elections maintain their unusual patterns, whether Liberia has joined the ranks of African patron-clientelist, dominant-party or two-party systems, in particular compared to that of Sierra Leone, or whether there are new twists in its democratic development.Full text of the article was made available on the 1st March 2015 at the end of the publisher's embargo

Spiritual Roots and Classical Fruits: A Stylistic Analysis and Performance Guide of Selected Spirituals and Art Songs by Jacqueline Hairston

Spiritual Roots and Classical Fruits is the title of Jacqueline Butler Hairston’s first and only CD. Hairston is an American born composer and arranger who has proven herself as a prolific writer of vocal music, most notably in the genre of spirituals and art songs. The Charlotte, North Carolina native brings a wealth of experience to composition through her southern roots in spirituals and her formal classical training at The Juilliard School of Music, Howard University and Columbia University. The goal of this document is to introduce and present solo vocal music of Hairston’s with an emphasis on harmonic structure, text, interpretation, performance practice, musical setting and overall form. Known primarily as a prolific arranger of spirituals, particularly her Christmas spirituals for Kathleen Battle, Jacqueline Hairston has equally established herself as a prominent composer in the art song genre. Her compositional style mimics the essential traits of Black American music coupled with modern and traditional European classical techniques. Her nonarranged music runs the risk of being overshadowed by the popularity of her spirituals. Consequently, this writing will provide detailed insight to her gift for non-sacred music as well. An essential aspect of Hairston’s music ties into performance practice. A detailed exploration of how her pieces should be performed and direct insight into the composer’s intent serves a critical role in the entirety of this study. The totality of this research is gathered from my interactions as a student of Jacqueline Hairston, multiple interviews with her and interviews from her close associates. Moreover, it is my hope that this exposure of her work will engage and excite more discussion and performance of her music in recital, concert and church halls

Lifetime performance characteristics of screen-printed potentiometric Ag/AgCl chloride sensors

Ag/AgCl chloride sensors were fabricated using thick-film technology. A number of different formulations were prepared and chloride responses were investigated over time. Near Nernstian, identical responses were observed over the first 160 days with an average chloride sensitivity of -51.8 ± 0.4 mV per decade change in chloride concentration (pCl), irrespective of paste formulation. After 6- months continuous immersion in tap water, pastes formulated with a glass binder began to exhibit a loss in sensitivity whilst those formulated from a commercial thickfilm dielectric paste remained functional for the best part of a year. The difference is attributed to the inclusion of proprietary additives in the commercial paste aiding adhesion and minimising AgCl leaching

Screen-printed platinum electrodes for measuring crevice corrosion: Nickel aluminium bronze as an example

Screen-printed platinum electrodes were used to monitor crevice corrosion processes. The electrodes, printed on an inert alumina substrate, formed the bottom of an artificial crevice when mechanically clamped to a rectangular block of nickel-aluminium bronze (NAB). Cyclic differential pulse voltammetry was used to detect corrosion products over time whilst the assembly was immersed in a 3.5% by weight aqueous solution of sodium chloride. Cupric (Cu2+), ferric (Fe3+) and ferrous (Fe2+) ions were detected with evolution profiles indicative of selective phase corrosion

Screen-printed platinum electrodes for the detection of cupric and ferric ions in high chloride backgrounds

Screen-printed platinum electrodes developed for use in corrosion monitoring applications have been used to detect cupric and ferric ions both individually and as mixtures in a background of 3.5% by weight sodium chloride and in the presence of dissolved oxygen. In single species detection linear responses for the Fe3+/Fe2+ couple were observed over the concentration range 0.3 to 100mM. By contrast, the small size of the working electrode caused a current limiting response for cupric ions over the same concentration range. In mixtures of these ions, the sensors show good differentiation and are able to separate the individual metal ion responses

Estimating the value of service exports by destination from different parts of Great Britain: 2015

This is the first time we are publishing service export figures by country of destination for countries, regions and industries in Great Britain; our analysis includes around 45% of total service exports and excludes finance, travel and transport because of data limitations. London dominated the absolute value of service exports to the EU, contributing 42% of the total EU exports (around £15.6 billion) in 2015. The EU market was more significant for service exports from the North East and West Midlands compared with London and the North West. In the North East, half of total service exports went to the EU, whereas this figure is only one-quarter for the North West. Real estate, professional, scientific and technical industries were the largest exporters of services, followed by information and communication industries, then services connected to manufacturing, generating 35%, 29% and 15% of the total service exports respectively. Of all Great Britain service exports in 2015, 10% went to the Commonwealth (around £9.8 billion), and London generated almost half of those exports (around £4.6 billion). Of Asian markets, Japan was the single largest destination for service exports from London and the East (receiving about £0.8 billion and £0.2 billion respectively), while the single largest Asian destination from Yorkshire and The Humber, Wales and the South West was Saudi Arabia