764 research outputs found

    FEA Investigation of Microfabricated Structural Variation in Acoustofluidic Devices

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    Microfluidic chips are used to separate particles of differing sizes. A piezoelectric transducer is attached to the silicon chip and produces an ultrasonic standing wave in the channel of the chip. The overall width of the chip is 900μm and has a thin wall 300μm from one side. As a sample passes through the chip, the larger particles are concentrated at the low pressure node of the standing wave while the smaller particles are not affected by the wave. The stream of large particles is directed into a separate output than the rest of the sample. When the chips are fabricated, there are small variations in the dimensions of the wall. This leads to each chip acting slightly differently in laboratory tests. The goal of these simulations is to determine the effect of the wall shape and dimensions on the focusing frequency and position. Two dimensional simulations were done in COMSOL Multiphysics using four different wall shapes over a range of 10μm around the actual dimensions of 13μm and 6μm measured from a sample chip. The wall dimensions are taken as the lengths of the top and bottom of the wall. The shape of the wall does not affect focusing frequency. As the difference in the wall dimensions increases, focusing frequency increases and focusing position moves farther from the wall

    J. R. R. Tolkien, War, and Nationalism

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    Tolkien may not have intentionally created his fictive nations to mirror real nations, but his world certainly bears the scars of his experiences of war. The World Wars heightened his fear of losing everything that he loved about his local culture through literal obliteration or assimilation into another culture in the event of England’s losing. Tolkien saw the nation as a social construct that potentially could minimize losses, if not wholly protect local culture from the forces that threatened to destroy it. Yet he also perceived the nation’s limitations in its ability to protect culture. A nation could grow too large for itself, becoming obsessed with consuming other nations. For Tolkien, national property-amassing leads to a loss of the cultural identity that nationhood aims to preserve. When the forces threatening individual nations become overwhelming, those nations often need to join forces to prevent being taken over by other, more powerful countries. An examination of Tolkien’s fiction and numerous other sources, including essays and personal letters, suggests that he felt that separate nations should co-exist without imposing on one another, and that the nation taking over others would lose its own identity, whether gradually or suddenly. Despite Tolkien’s efforts to distance himself from what he felt modernity represented, his fiction (whether consciously or not) grapples with the mid-twentieth century ideological conflicts surrounding the nation. The resulting sense of loss and powerlessness underlies much of Tolkien’s fiction and leads him to a concept of the nation as an imperfect protector of culture, tempered by its need to rely on other nations

    The misuse of convenient care and importance of establishing a primary care provider

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    Over the last decade, there has been substantial increase in the use of urgent care (UC) and convenient care (CC) clinics nationwide. While these clinics are valued and serve a purpose in our communities, more patients are utilizing their services exclusively in place of primary care (PC), resulting in millions of Americans not receiving essential preventative care and chronic disease management. An extensive literature review evaluated current and effective interventions used to decrease inappropriate use of CC clinics, while simultaneously exploring strategies in increasing patient compliance with routine comprehensive health management. Based on literature review findings, an education-based project was implemented at a rural CC clinic that serves a large volume of patients without a primary care provider (PCP). Over an eight-week implementation phase, an educational template was electronically incorporated into patient discharge instructions and reviewed verbally by the convenient care provider (CCP). The template explained current definition and scope of practice of emergency departments, UC, CC, and PC clinics. Additionally, the template outlined which respective establishment to visit for numerous common ailments and important health care needs. A total of forty-six patients were identified without a PCP. The patients were counseled and given the printed education. Through initial interview, thirty percent of these patients were found to misunderstand the purpose of the CC clinic. Following counsel and education delivery, forty-eight percent of patients without a PCP reported new motivation to establish care with one. The CCP, who dually served as project stakeholder, reported positive feedback regarding the educational tool and found it valuable, despite COVID-19 barriers and limitations. The CCP continues to use the tool in daily practice and has shared it amongst fellow providers for use. It is recommended that our exploration into the misuse of this CC clinic be furthered with future project implementations that may focus on the role of the current patient advocate coordinator

    Buying in: Analyzing the First Fan Adopters of a New National Collegiate Athletic Association (NCAA) Division I Football Program

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    Establishing a strong fan base within the inaugural year of a National Collegiate Athletic Association (NCAA) Division I Football Program presents many challenges. Tracking consumers and their behavior becomes imperative as sport marketers seek to better understand the first fan adopters of a new program. With new NCAA football programs being established every year, sport marketers of a new program are challenged to not only find a loyal fan-base who will continue to support the program despite win or lose, but find new and innovative ways to grow their fan base. The purpose of this study was to examine attendance demographics and consumer behavior for the inaugural football season at a NCAA Division 1 program. Data were collected (n = 914) from a relatively equal distribution of fan groups (students- 34.8%, alumni- 32.9%, and other- 32.3%) via an in-person survey completed on a tablet interface. Results demonstrate that the level of fandom (temporary, devoted, or fanatic) impacts certain consumer behaviors, including; overall support of the program, media consumption, and game day behaviors

    Versão parcial para o espanhol de Vivendo, aprendendo e morrendo sem saber : reflexões de uma editora tradutora

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    Trabalho de Conclusão de Curso (graduação)—Universidade de Brasília, Instituto de Letras, Departamento de Línguas Estrangeiras e Tradução, 2018.Frente ao desejo de poder traduzir exatamente palavra por palavra, aquilo que já foi redigido uma primeira vez, a prática da tradução requer a leitura e releitura do texto a ser traduzido, num debruçar-se sobre o texto, neste caso para ser vertido ao espanhol, o que propicia uma leitura crítica da escrita original em português. Para usar a expressão de Badiou, percebe-se de início uma espécie de ‘mosaico bárbaro’; os fragmentos estão mal juntados. Essa constatação passa também pelo fato de que o livro remete à história de uma terceira pessoa, o autor autobiográfico, de quem o livro contém a transcrição da oralidade e toda uma veia literária, em registros de cunho familiar, profissional e emocional. E, assim, nos perguntamos: a quem pertence, em sua essência, a tradução? Ao autor, ao tradutor ou ao destinatário final, o leitor? Quem detém a prerrogativa do domínio e da ética na tradução literária? Quais as licenças que à criatividade são permitidas, no complexo transmutar de um texto a partir de um código linguístico pátrio para outro, estranho vernáculo, ou vice-versa, através do qual se propõe a leitura com os mesmos efeitos pretendidos pelo autor na língua de origem? Na versão parcial, aqui presente, de Vivendo, aprendendo e morrendo sem saber... uma história que a vida escreveu, de Carlos Aguiar, a tradutora, coeditora do texto original, sente-se compelida a rever a escrita do texto de partida, por ela mesma ter sido partícipe da sua geração. A leitura atenta lhe provoca pensar se o livro poderia ter um conteúdo diferente, ainda que sejam apenas excertos, e quais os limites que eventuais mudanças no texto projetariam na tradução. Dessa forma, o pulsar de um personagem, ora autor anônimo, no papel de ghost-writer, ora responsável pela tradução, que se debruça, não apenas com inúmeras incertezas e questionamentos, percorre, neste trabalho, uma trajetória reflexiva, como tradutora em formação, abordando questões da escrita literária, da tradução e das línguas nela envolvidas.Ante el deseo de traducir exactamente palabra por palabra, lo que fue escrito una primera vez, la práctica de la traducción requiere que se lea y que se vuelva a leer el texto que se traducirá y esa dedicación a la obra, en este caso para traducirla al español, se vuelve propicia a una lectura crítica de su redacción original en portugués. Para usar la expresión de Badiou, notamos una especie de ‘mosaico bárbaro’ pues los fragmentos se han juntado mal. Esta constatación parte del hecho de que el libro remite a la historia de una tercera persona, el autor autobiográfico, a través de registros propios de la oralidad, en un relato de asuntos familiares, profesionales y emocionales que le imprimen un carácter muy particular a la obra. De esta forma, nos preguntamos: ¿a quién pertenece, en su esencia, la traducción? ¿Al autor, al traductor, al destinatario final, al lector? ¿Quién detiene la prerrogativa del dominio y de la ética en la traducción literaria? ¿Cuáles son las licencias permitidas a la creatividad en el complejo transmutar de un texto a partir de un código lingüístico patrio hacia un extraño vernáculo, o viceversa, tanto del original como de la traducción? Además, ¿hay que lograr los mismos efectos en la lectura del original y en la traducción? En la presente traducción inversa parcial de Vivendo, aprendendo e morrendo sem saber… uma história que a vida escreveu, de Carlos Aguiar, la traductora, coeditora del texto original, se siente inclinada a revisar la escritura del texto de partida, ya que ella participó en la editoración de la obra. Por eso, ella se pregunta si podría cambiar los contenidos y qué consecuencias eso tendría en la traducción. De este modo, el pulsar de un personaje, autor anónimo, responsable de la traducción, que se acerca al texto con innúmeras preguntas e incertidumbres, hace un recorrido reflexivo, en este trabajo de una traductora en formación, tratando cuestiones de literatura, de la traducción y de los idiomas implicados en ella

    Faculty Recital

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    Program listing performers and works performe

    Toddlers may be getting enough iron in long day-care services after all

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    Background: Previous research has suggested that toddlers are not provided with adequate dietary iron in long-day care (LDC) services. However, the iron bioavailability provided is unknown. The present study aimed to investigate the amount and bioavailability of iron provided to toddlers aged 2–3 years at LDC services. Methods: A cross-sectional audit was conducted using a 2-day weighed food record of 30 LDC services. Iron provision (not child intake) in LDC services across Perth, Australia was compared with the estimated average requirements (EAR) and LDC services provision guidelines (50% of EAR = 2 mg/day based on a 14% bioavailability factor). Bioavailability was estimated per mealtime using haem and non-haem iron, ascorbic acid, animal protein, calcium, soy, eggs and phytates using two pre-existing algorithms (by A. P. Rickard and colleagues and H. Hallberg and H. Hulten). Results: Median iron supplied (2.52 mg/day, interquartile range [IQR] = 2.43–3.17) was above the 50% of EAR of 2.0 mg/day (p \u3c 0.001). Median bioavailable iron was 0.6 mg/day (IQR = 0.54–0.8) using the method of Rickard et al. and 0.51 mg/day (IQR = 0.43, 0.76 using that of Hallberg and Hulthen). The top three foods contributing to iron provision were bread, breakfast cereals and beef. Conclusions: Our results suggest that LDC services in Perth are meeting the minimum recommendation of provision of 50% of the iron EAR, and also that toddlers are provided with sufficient bioavailable iron. Future strategies should focus on promoting food combinations to maintain the iron bioavailability in meals currently served at LDC services

    A Content Analysis of How Engineering is Assessed in Published Curricula

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    A Content Analysis of How Engineering is Assessed in Published Curricula (Fundamental) The purpose of this proposal is to present research findings concerning how and what about engineering is commonly assessed in well-known engineering or integrated STEM published curriculum. Two of the major shifts brought about by Next Generation Science Standards (NGSS) are an increased emphasis in students’ capabilities to perform higher-level reasoning skills and integrate content understanding into science practices. At the same time, NGSS has made engineering integration into science education a priority, and it is an exciting time of reform as schools are exploring curriculum resources and teachers are being trained in engineering design. When engineering is a part of science instruction, there must also be corresponding measurement of student learning, yet many teachers who are new to engineering are also unfamiliar with the process of assessing design practices. In addition, teachers must grapple with how to assess higher order skills, including how students use science to make design decisions. Evidence of higher levels of learning beyond memorizing content or identifying facts is the goal of engineering assessment, and NGSS provides general patterns of thought and behavior that students may exhibit at each grade level related to defining problems, developing solutions, and optimizing results which demonstrate learning. However, these guidelines are very broad and do not clearly recommend ways to go about assessing these practices in the classroom. It is imperative that teachers are provided with the means to properly assess student learning of both content and engineering practices. As part of a larger goal of developing an integrated STEM curriculum for grades 4 – 8, this content analysis addresses the need for questioning how engineering is commonly assessed in elementary engineering or integrated STEM curricula. By examining current STEM assessments with two frameworks, this study investigates the following research questions: (1) What aspects of engineering are being assessed in common engineering or integrated STEM curricular units? (2) What level of cognitive demand is being referenced by these assessments? Using a purposeful sampling strategy, the authors reviewed 15 engineering curricula units published by 3 different publishing companies. To address the research questions, assessment tasks were coded based on the Task Analysis Guide in Science (TAGS) framework and alignment to the engineering process of design (POD). Preliminary results show that the majority of integrated STEM assessment items are testing students on memorized engineering practice, and very few are referencing higher levels of cognitive demand. These results indicate that the more complex thinking that students use during engineering classroom learning is being overlooked by subsequent assessment. In addition, a large proportion of assessment items are dedicated to learning background information about the problem and planning solution ideas, compared with other steps in the design process. The full paper will discuss conclusions and implications of the study

    Water Partnership Program Annual Report 2011: "Strengthen, Secure, Sustain"

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    This annual report outlines the World Bank's Water Partnership Program's activities and progress in its key focus areas of water resources management, climate change, food security, and energy security. The program is a multi-donor trust that was established in 2009 and is transitioning, as of June 2012, into a bolder Phase II of its operations. In addition to investing in research, technology and practice, the program is building partnerships, networks, and capacity, and working towards its new objective of green growth
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