Benefits of Using a Problem-Solving Scaffold for Teaching and Learning Synthesis in Undergraduate Organic Chemistry I

A problem-solving scaffold approach to synthesis was developed and implemented in two intervention sections of Chemistry 2211K (Organic Chemistry I) at Georgia Gwinnett College (GGC). A third section of Chemistry 2211K at GGC served as the control group for the experiment. Synthesis problems for chapter quizzes and the final examination were designed and administered to all sections participating in the experiment. Student solutions were graded according to a rubric designed to determine student use of the scaffold when solving synthesis problems. Analyses of the quiz results and the synthesis component of the final examination were conducted and intervention section students who employed the Synthesis Scaffold Approach were found to have higher mean scores on related graded events as compared to students who were not exposed to the Synthesis Scaffold Approach

Going against the grain? Brazil and the global furniture production network

Much of the literature dealing with the global production network (GPN) of furniture tends to focus on larger transnational corporations especially in Asia. By contrast, research on the GPN of small and medium sized furniture enterprises like those in Brazil has been sparse even through Brazil is an emerging furniture market that doubled production over the past decade. The locational focus of this dissertation is the Brazilian furniture industry and especially several innovative firms in the Santa Catarina region. From 2011 to 2013, the Brazilian furniture industry in Santa Catarina was responsible for 43 percent of Brazilian furniture exports. More specifically, this dissertation explores several specific research questions. First, it will be argued that the furniture industry is spatially concentrated in Brazil, and that one of the most rapidly growing clusters, especially regarding international sales, is the Santa Catarina region with its emphasis on the São Bento do Sul furniture cluster. Second, based on a mixed-methods approach, it is hypothesized that Santa Catarina has emerged as an internationally connected furniture cluster because it has developed a global production network grounded in process and product innovation, the utilization of web-based technologies, and the development of a strong value production chain grounded in the local economy. Third, it will be argued that the development of any innovative furniture value chain in Brazil, or elsewhere in the Global South, is inherently constrained by the difficulties of developing a market brand that is well-recognized and trusted in Global North markets, particularly as it relates to distribution networks. Much of this dissertation will embrace a mixed-methods approach based on both an empirically driven analysis of the economic geography of the Brazilian furniture industry, and an interview based approach regarding the competitive strategies of specific firms located in the Santa Catarina region. Such a comprehensive approach will elevate our understanding of how the furniture value chain in Brazil presents both opportunities and challenges regarding global production networks that attempt to link Global South and Global North markets. Particular attention will be focused on the Renar Móveis, Rotta Móveis and Temasa Móveis furniture companies, and the Brazilian Furniture Group located in High Point, NC because they seemed to have birthed furniture companies that have practiced innovative strategies, utilized web-based technologies, and developed various partnerships. It will be argued that these have all been key ingredients in developing a competitive global value chain that has successfully penetrated specific international markets

Engaging Science Students with Handheld Technology and Applications by Revisiting the Thayer Method of Teaching and Learning

Organic chemistry instructors integrate handheld technology and applications into course lecture and lab to engage students with tools and techniques students use in the modern world. This technology and applications enable instructors to re-visit the Thayer Method of teaching and learning to create an updated method that works with 21st century students. The Thayer Method is based on the premise that students are willing and capable of making substantial preparation before coming to class and lab in order to maximize efficiency of student-instructor contact time. During this student preparation phase, we engage students with handheld technology and content applications including smart phone viewable course administrative materials; “flashcards” containing basic organic chemistry nomenclature, molecular structures, and chemical reactions; mini-lectures prepared using the Smart Board Airliner Interactive Tablet for upcoming class periods and laboratory technique videos demonstrating tasks they will perform as part of laboratory experimentation. Coupled with a student friendly course text, these handheld applications enable substantial student preparation before class and lab. The method, in conjunction with handheld technology and applications, has been used with positive results in our organic chemistry courses

Benefits of Using a Problem-Solving Scaffold for Teaching and Learning Synthesis in Undergraduate Organic Chemistry I

A problem-solving scaffold approach to synthesis was developed and implemented in two intervention sections of Chemistry 2211K (Organic Chemistry I) at Georgia Gwinnett College (GGC). A third section of Chemistry 2211K at GGC served as the control group for the experiment. Synthesis problems for chapter quizzes and the final examination were designed and administered to all sections participating in the experiment. Student solutions were graded according to a rubric designed to determine student use of the scaffold when solving synthesis problems. Analyses of the quiz results and the synthesis component of the final examination were conducted and intervention section students who employed the Synthesis Scaffold Approach were found to have higher mean scores on related graded events as compared to students who were not exposed to the Synthesis Scaffold Approach

Next Generation Solvent Development for Caustic-Side Solvent Extraction of Cesium

This report summarizes the FY 2010 and 2011 accomplishments at Oak Ridge National Laboratory (ORNL) in developing the Next Generation Caustic-Side Solvent Extraction (NG-CSSX) process, referred to commonly as the Next Generation Solvent (NGS), under funding from the U.S. Department of Energy, Office of Environmental Management (DOE-EM), Office of Technology Innovation and Development. The primary product of this effort is a process solvent and preliminary flowsheet capable of meeting a target decontamination factor (DF) of 40,000 for worst-case Savannah River Site (SRS) waste with a concentration factor of 15 or higher in the 18-stage equipment configuration of the SRS Modular Caustic-Side Solvent Extraction Unit (MCU). In addition, the NG-CSSX process may be readily adapted for use in the SRS Salt Waste Processing Facility (SWPF) or in supplemental tank-waste treatment at Hanford upon appropriate solvent or flowsheet modifications. Efforts in FY 2010 focused on developing a solvent composition and process flowsheet for MCU implementation. In FY 2011 accomplishments at ORNL involved a wide array of chemical-development activities and testing up through single-stage hydraulic and mass-transfer tests in 5-cm centrifugal contactors. Under subcontract from ORNL, Argonne National Laboratory (ANL) designed a preliminary flowsheet using ORNL cesium distribution data, and Tennessee Technological University developed a chemical model for cesium distribution ratios (DCs) as a function of feed composition. Inter Laboratory efforts were coordinated in complementary fashion with engineering tests carried out (and reported separately) by personnel at Savannah River National Laboratory (SRNL) and Savannah River Remediation (SRR) with helpful advice by Parsons Engineering and General Atomics on aspects of possible SWPF implementation

Realignment of the Under graduate Organic Chemistry Laboratory-Toward a Four Year Under graduate Research Experience

The new organic chemistry I laboratory program at Georgia Gwinnett College incorporates green chemistry principles, use of spectroscopic instrumentation, stereochemistry investigation by polarimetry, and use of the Avogadro molecular modeling program. The organic chemistry II laboratory experience has been reworked into a semester-long, multi-step synthesis project. Students work together in research groups, first planning a synthetic route for their target compound and then performing their synthesis

Synthesis of Heteroaromatic Compounds

The synthesis of heteroaromatic compounds has been the subject of intense investigation for well over a century [...

Advances in the Preparation of Fluorinated Isoquinolines: A Decade of Progress

Heterocyclic molecules incorporating fluorinated isoquinoline components are found in many medicinally and agriculturally important bioactive products as well as industrially impactful materials. Within the past decade, a variety of isoquinolinic ring assembly techniques has enabled the introduction of diverse fluorine-containing functionalities which can enhance potential bioactivity and industrial utility. This review examines recent noncatalyzed and transition metal catalyzed synthetic approaches to the assembly of isoquinoline derivatives that are ring-fluorinated and/or result in the incorporation of fluorine-containing functional groups. Specifically, efficient synthetic methods and regioselectivity in the incorporation of functional groups into isoquinoline ring systems are examined

Advances in the Synthesis of Heteroaromatic Hybrid Chalcones

Chalcones continue to occupy a venerated status as scaffolds for the construction of a variety of heterocyclic molecules with medicinal and industrial properties. Syntheses of hybrid chalcones featuring heteroaromatic components, especially those methods utilizing green chemistry principles, are important additions to the preparative methodologies for this valuable class of molecules. This review outlines the advances made in the last few decades toward the incorporation of heteroaromatic components in the construction of hybrid chalcones and highlights examples of environmentally responsible processes employed in their preparation

Electricity - Electronics Fundamentals : A Text-Lab Manual

X, 374 tr.; 28 cm