Lee Hoiby\u27s I Have a Dream

The primary focus of this document is to provide performers and musical scholars with an analysis of Lee Hoiby’s musical composition I Have A Dream. The opening of this document will be biographical, including facts regarding family lineage, education, positions held, general aspects of his personality and significant influence regarding equal rights. Biographical information will span from Dr. Martin Luther King, Jr.’s birth (January 15, 1929) to the March on Washington (August 28, 1963). Next, I will outline the methodology and techniques Dr. King used in leading the movement. Literary texts written by King, Jr. and other influential writers will be referenced to discover how and why he became such a monumental figure in the face of civil rights in America. I will then focus exclusively on Mr. Hoiby. I will highlight Mr. Hoiby’s biographical information. Then, I will focus on general compositional techniques used by Mr. Hoiby in his solo vocal works. Included will be musical examples from I Have A Dream and other selected works to assist the reader in understanding the music further. Finally, I will present a textual and musical analysis of I Have A Dream. Conventional theoretical techniques of musical analysis will be used to decipher the harmonic language used in the composition. The document will conclude with a bibliography and appendices. Reference material at the conclusion of the document will include the text of I Have A Dream. There will also be a list of vocal works composed by Mr. Hoiby, as well as an e-mail correspondence giving the author permission to use musical examples

Attitudes toward science and critical thinking abilities of chemistry and non-chemistry students in the Tacoma Public schools

This investigation was designed to compare the growth in attitudes toward science and the critical thinking abilities of high school juniors in chemistry to juniors not enrolled in chemistry. One hundred and fifty-three chemistry students and 149 non-chemistry students were randomly selected to participate in the study. Criterion tests used were the Cornell Critical Thinking Test, Form X and the Reaction Inventory, Attitudes Toward Science and Scientific Careers. The study was of a pre-test-post-test design and the criterion tests were administered to the juniors in September and March of the 1966-67 academic year. To statistically control the academic achievement and academic ability of the students, the following covariance controls were used: 1. The Numerical Ability score on the Differential Aptitude Test. 2. The combined Verbal Reasoning and Numerical Ability score on the Differential Aptitude Test. 3. The Background in Natural Science score on the Iowa Test of Educational Development. 4. The total score on the School and College Ability Test. 5. The accumulative grade point average. T-tests of significance were used to determine whether differences in group means on the criterion instruments were significant. The following conclusions were drawn from the investigation: 1. There was no significant difference in the growth in critical thinking abilities between any of the groups of chemistry and non-chemistry students. 2. Chemistry students made greater gains in growth in critical thinking ability than non-chemistry students. 3. When statistically controlling the Numerical Ability score on the DAT, the high subgroup of chemistry students scored significantly higher (.05 level) than did the non-chemistry students in attitudes toward science. 4. Chemistry students made positive gains in growth in attitudes toward science as measured by the Reaction Inventory while the non-chemistry students indicated no positive gains

Progress Toward Future Runway Management

The runway is universally acknowledged as a constraining factor to capacity in the National Airspace System (NAS). It follows that investigation of the effective use of runways, both in terms of selection and assignment, is paramount to the efficiency of future NAS operations. The need to address runway management is not a new idea; however, as the complexities of factors affecting runway selection and usage increase, the need for effective research in this area correspondingly increases. Under the National Aeronautics and Space Administration s Airspace Systems Program, runway management is a key research area. To address a future NAS which promises to be a complex landscape of factors and competing interests among users and operators, effective runway management strategies and capabilities are required. This effort has evolved from an assessment of current practices, an understanding of research activities addressing surface and airspace operations, traffic flow management enhancements, among others. This work has yielded significant progress. Systems analysis work indicates that the value of System Oriented Runway Management tools is significantly increased in the metroplex environment over that of the single airport case. Algorithms have been developed to provide runway configuration recommendations for a single airport with multiple runways. A benefits analysis has been conducted that indicates the SORM benefits include supporting traffic growth, cost reduction as a result of system efficiency, NAS optimization from metroplex operations, fairness in aircraft operations, and rational decision making

MRI Abdominal Organ Tissue Identification using Statistical Distance in Color Space

Abstract Magnetic resonance imaging (MRI) is a powerful medical imaging technique to provide detailed images of soft abdomen organ tissues. An automatic organ tissue identification algorithm is useful for physicians to perform initial reading and interpret MRI images. The algorithm presented in the paper uses the distance in color space between centers of organ tissues to identify abdominal organs in MRI images. Experimental results show the algorithm is effective in the RGB, LAB and AB color spaces

Synergistic effect of pro-inflammatory TNFα and IL-17 in periostin mediated collagen deposition: Potential role in liver fibrosis

Background The pro-inflammatory cytokines, tumor necrosis factor (TNF)-α, and interleukin (IL)-17, have been implicated in the pathogenesis of liver fibrosis. In this study, we investigated the role of TNFα and IL-17 toward induction of profibrotic factor, periostin. Methods HepG2 cells were cultured and treated with inflammatory cytokines, TNFα and IL-17. Computational promoter sequence analysis of the periostin promoter was performed to define the putative binding sites for transcription factors. Transcription factors were analyzed by Western blot and Chromatin Immunoprecipitation. Periostin and transcription factor expression analysis was performed by RT-PCR, Western blot, and fluorescence microscopy. Type I collagen expression from fibroblast cultures was analyzed by Western blot and Sircol soluble collagen assay. Results Activation of HepG2 Cells with TNFα and IL-17 enhanced the expression of periostin (3.5 and 4.4 fold, respectively p \u3c 0.05) compared to untreated cells. However, combined treatment with both TNFα and IL-17 at similar concentration demonstrated a 13.3 fold increase in periostin (p \u3c 0.01), thus suggesting a synergistic role of these cytokines. Periostin promoter analysis and specific siRNA knock-down revealed that TNFα induces periostin through cJun, while IL-17 induced periostin via STAT-3 signaling mechanisms. Treatment of the supernatant from the cytokine activated HepG2 cells on fibroblast cultures induced enhanced expression of type I collagen (\u3e9.1 fold, p \u3c 0.01), indicative of a direct fibrogenic effect of TNFα and IL-17. Conclusion TNFα and IL-17 induced fibrogenesis through cJun and STAT-3 mediated expression of profibrotic biomarker, periostin. Therefore, periostin might serve as a novel biomarker in early diagnosis of liver fibrosis

MinION Analysis and Reference Consortium: Phase 1 data release and analysis

The advent of a miniaturized DNA sequencing device with a high-throughput contextual sequencing capability embodies the next generation of large scale sequencing tools. The MinION™ Access Programme (MAP) was initiated by Oxford Nanopore Technologies™ in April 2014, giving public access to their USB-attached miniature sequencing device. The MinION Analysis and Reference Consortium (MARC) was formed by a subset of MAP participants, with the aim of evaluating and providing standard protocols and reference data to the community. Envisaged as a multi-phased project, this study provides the global community with the Phase 1 data from MARC, where the reproducibility of the performance of the MinION was evaluated at multiple sites. Five laboratories on two continents generated data using a control strain of Escherichia coli K-12, preparing and sequencing samples according to a revised ONT protocol. Here, we provide the details of the protocol used, along with a preliminary analysis of the characteristics of typical runs including the consistency, rate, volume and quality of data produced. Further analysis of the Phase 1 data presented here, and additional experiments in Phase 2 of E. coli from MARC are already underway to identify ways to improve and enhance MinION performance

Interlaboratory Evaluation of Rodent Pulmonary Responses to Engineered Nanomaterials: The NIEHS Nano GO Consortium

Background: Engineered nanomaterials (ENMs) have potential benefits, but they also present safety concerns for human health. Interlaboratory studies in rodents using standardized protocols are needed to assess ENM toxicity. Methods: Four laboratories evaluated lung responses in C57BL/6 mice to ENMs delivered by oropharyngeal aspiration (OPA), and three labs evaluated Sprague-Dawley (SD) or Fisher 344 (F344) rats following intratracheal instillation (IT). ENMs tested included three forms of titanium dioxide (TiO2) [anatase/rutile spheres (TiO2-P25), anatase spheres (TiO2-A), and anatase nanobelts (TiO2-NBs)] and three forms of multiwalled carbon nanotubes (MWCNTs) [original (O), purified (P), and carboxylic acid “functionalized� (F)]. One day after treatment, bronchoalveolar lavage fluid was collected to determine differential cell counts, lactate dehydrogenase (LDH), and protein. Lungs were fixed for histopathology. Responses were also examined at 7 days (TiO2 forms) and 21 days (MWCNTs) after treatment. Results: TiO2-A, TiO2-P25, and TiO2-NB caused significant neutrophilia in mice at 1 day in three of four labs. TiO2-NB caused neutrophilia in rats at 1 day in two of three labs, and TiO2-P25 and TiO2-A had no significant effect in any of the labs. Inflammation induced by TiO2 in mice and rats resolved by day 7. All MWCNT types caused neutrophilia at 1 day in three of four mouse labs and in all rat labs. Three of four labs observed similar histopathology to O-MWCNTs and TiO2-NBs in mice. Conclusions: ENMs produced similar patterns of neutrophilia and pathology in rats and mice. Although interlaboratory variability was found in the degree of neutrophilia caused by the three types of TiO2 nanoparticles, similar findings of relative potency for the three types of MWCNTs were found across all laboratories, thus providing greater confidence in these interlaboratory comparisons

Metagenomic analysis of planktonic riverine microbial consortia using nanopore sequencing reveals insight into river microbe taxonomy and function

Background Riverine ecosystems are biogeochemical powerhouses driven largely by microbial communities that inhabit water columns and sediments. Because rivers are used extensively for anthropogenic purposes (drinking water, recreation, agriculture, and industry), it is essential to understand how these activities affect the composition of river microbial consortia. Recent studies have shown that river metagenomes vary considerably, suggesting that microbial community data should be included in broad-scale river ecosystem models. But such ecogenomic studies have not been applied on a broad “aquascape” scale, and few if any have applied the newest nanopore technology. Results We investigated the metagenomes of 11 rivers across 3 continents using MinION nanopore sequencing, a portable platform that could be useful for future global river monitoring. Up to 10 Gb of data per run were generated with average read lengths of 3.4 kb. Diversity and diagnosis of river function potential was accomplished with 0.5–1.0 ⋅ 106 long reads. Our observations for 7 of the 11 rivers conformed to other river-omic findings, and we exposed previously unrecognized microbial biodiversity in the other 4 rivers. Conclusions Deeper understanding that emerged is that river microbial consortia and the ecological functions they fulfil did not align with geographic location but instead implicated ecological responses of microbes to urban and other anthropogenic effects, and that changes in taxa manifested over a very short geographic space