15 research outputs found

    Case Study Of A Small Scale Polytechnic Entrepreneurship Capstone Course Sequence

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    A multidisciplinary entrepreneurial senior capstone has been created for engineering technology students at a research I land-grant university statewide extension. The two semester course sequence welcomes students from Mechanical Engineering Technology, Electrical Engineering Technology, Computer Graphics Technology, and Organizational Leadership. The goal was to provide an avenue for technology students to learn about, actively participate in, and form small scale startups in a multidisciplinary approach. Student are introduced to fundamental techniques and methodologies for effective product development, such as design thinking, technical data package, rapid prototyping, testing, and validation. As well as entrepreneurship concepts, such as product ideation, market research, capital exploration, customer acquisition, customer discovery, intellectual protection, marketing and branding, and leadership. The capstone has provided real-world, hands-on learning of the components and processes necessary to take a product idea from initial concept to successful business. Currently entering in to its third year, the capstone continues to evolve. This paper presents a brief description of the capstone, including formation, execution, and outcomes. The curriculums used are outlined and future changes are discussed. Lastly, the presentation of challenges, lessons learned, and course accomplishments will be discussed

    A Comparison Of Delivery Formats To Encourage Student-Centered Learning In A Power Engineering Technology Course

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    This paper describes a student-centered approach to a power engineering technology course using the flipped or inverted classroom as well as active learning in the form of group discussions and team problem solving. The study compares student performance and perceptions of a traditional, teaching-centered classroom to two different flipped courses: one using video lectures and one using a media-enhanced electronic textbook. The authors compared courses in the areas of 1) student performance on multiple choice and numerical analysis problems, 2) students’ perceptions of course delivery format and satisfaction with the course and instructor, and 3) technical content coverage. Results show little difference in student achievement between the course formats, strong negative reactions by students to unfamiliar instructional methods, and little difference in content coverage. The authors believe that the outcomes of this study can be attributed to the benefits of small class sizes (n<12), which naturally enable active learning to be utilized without the need for rigid and formal course structure

    Tubulin-binding dibenz[c,e]oxepines: Part 2 Structural variation and biological evaluation as tumour vasculature disrupting agents

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    5,7-Dihydro-3,9,10,11-tetramethoxybenz[c,e]oxepin-4-ol 1, prepared from a dibenzyl ether precursor via Pd-catalysed intramolecular direct arylation, possesses broad-spectrum in vitro cytotoxicity towards various tumour cell lines, and induces vascular shutdown, necrosis and growth delay in tumour xenografts in mice at sub-toxic doses. The biological properties of 1 and related compounds can be attributed to their ability to inhibit microtubule assembly at the micromolar level, by binding reversibly to the same site of the tubulin αβ-heterodimer as colchicine 2 and the allocolchinol, N-acetylcolchinol 4

    Cancer Biomarker Discovery: The Entropic Hallmark

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    Background: It is a commonly accepted belief that cancer cells modify their transcriptional state during the progression of the disease. We propose that the progression of cancer cells towards malignant phenotypes can be efficiently tracked using high-throughput technologies that follow the gradual changes observed in the gene expression profiles by employing Shannon's mathematical theory of communication. Methods based on Information Theory can then quantify the divergence of cancer cells' transcriptional profiles from those of normally appearing cells of the originating tissues. The relevance of the proposed methods can be evaluated using microarray datasets available in the public domain but the method is in principle applicable to other high-throughput methods. Methodology/Principal Findings: Using melanoma and prostate cancer datasets we illustrate how it is possible to employ Shannon Entropy and the Jensen-Shannon divergence to trace the transcriptional changes progression of the disease. We establish how the variations of these two measures correlate with established biomarkers of cancer progression. The Information Theory measures allow us to identify novel biomarkers for both progressive and relatively more sudden transcriptional changes leading to malignant phenotypes. At the same time, the methodology was able to validate a large number of genes and processes that seem to be implicated in the progression of melanoma and prostate cancer. Conclusions/Significance: We thus present a quantitative guiding rule, a new unifying hallmark of cancer: the cancer cell's transcriptome changes lead to measurable observed transitions of Normalized Shannon Entropy values (as measured by high-throughput technologies). At the same time, tumor cells increment their divergence from the normal tissue profile increasing their disorder via creation of states that we might not directly measure. This unifying hallmark allows, via the the Jensen-Shannon divergence, to identify the arrow of time of the processes from the gene expression profiles, and helps to map the phenotypical and molecular hallmarks of specific cancer subtypes. The deep mathematical basis of the approach allows us to suggest that this principle is, hopefully, of general applicability for other diseases

    The impact of telomere erosion on memory CD8+ T cells in patients with X-linked lymphoproliferative syndrome

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    Patients with X-linked lymphoproliferative syndrome (XLP) experience excessive T cell proliferation after primary Epstein-Barr virus (EBV) infection, due to mutations in the signalling lymphocyte activation molecule (SLAM) associated protein (SAP) molecule. We examined the impact of dysfunctional proliferative control on the extent of CD8+ T cell differentiation in XLP patients who recovered from primary EBV infection. Although these young patients have normal numbers of lytic and latent EBV-epitope-specific CD8+ T cells, they were extremely differentiated as defined by loss of CCR7 and CD27, low telomerase activity and very short telomeres. This was not a direct effect arising from the loss of SAP, but was due to excessive T cell stimulation due to this defect. Thus, transduction of XLP CD8+ T cells with the catalytic component of telomerase (hTERT), but not SAP, prevented telomere loss and considerably extended proliferative lifespan in vitro. These results indicate that excessive proliferation in CD8+ T cells in XLP patients may lead to end-stage differentiation and loss of functional EBV-specific CD8+ T cells through replicative senescence. This may contribute to the defective immunity found in XLP patients who survive acute EBV infection who develop EBV-related B cell lymphomas before the fourth decade of life

    The pleasures and pains of Pikachu

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    Pokémon is a phenomenon that has enticed children throughout the world. The essential components of the Pokémon universe are introduced first by outlining the logics of life in Pokémon and then by presenting the main components through which these logics are realized: videogames, cartoons, cards, movies and merchandising. These five components and associated logics are then outlined as a form of branded hyperdifferentiating capitalism. In Pokémon, everything that seems single in fact multiplies, producing innumerable opportunities to define commodities that are yet held together by the Pokémon 'brand'. This aspect of Pokémon is carried mainly by the videogames and cards. A second axis of Pokémon is then explored in the potential it offers for children to explore their emotional development both in and out of family life. Here, numerous resources are found through which the inner subconscious development of children can be explored using Pokémon characters and stories as metaphors. This aspect of Pokédmon is carried mainly by cartoons and movies. In conclusion, it is noted that although Pokémon offers resources-that may participate in the emotional development of children, these resources are also intimately tied into commodification
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