Duocel Metal Foam Display Cases

This Final Design Review (FDR) report outlines the senior design project that was conducted by a team of four mechanical engineering students at California Polytechnic State University-San Luis Obispo for ERG Materials and Aerospace Corporation. The goal of this project was to design displays that showcase the properties of ERG’s Duocel® foam at tradeshows and client meetings. To better understand the needs of our sponsor, the team researched Duocel®’s capabilities, related technologies, and relevant standards and regulations. With this information, we further defined the problem by creating a problem statement and a set of engineering specifications through a Quality Function Deployment (QFD) process. The first step we took in tackling our design challenge was to determine which properties of the Duocel® foam would be suitable for table-top displays and be most beneficial to our sponsor. It was found that the thermal and fluid flow properties of the foam were most important to our sponsor. Though a series of ideation and idea refinement processes the team designed a Flow Control Display and a Thermal Conductivity Display. The Flow Control Display demonstrates the varying flow resistance of different porosity Duocel® foams using a manual air-pump system. The Thermal Conductivity Display is comprised of heating and cooling elements that demonstrate the heat dissipation ability of Duocel® foam. To verify the feasibility of our designs, we built concept prototypes. With sponsor approval, the team moved forward with the Flow Control Display and redesign the Thermal Conductivity Display. The team created detailed designs for both displays, complete with engineering drawings and wiring diagrams. Additionally, manufacturing plans, testing procedures, and structural prototypes were developed for each design. Confirmation prototypes were manufactured based on the final designs on staggered timelines. First, the Flow Control Display was assembled and tested. The test results revealed that this display did not function as intended. The team proceeded to troubleshoot the display and determined that the functionality issues were a result of insufficient velocity of air flow. Next, the Thermal Conductivity Display was manufactured and calibrated. Once it was satisfactorily assembled, the display was tested and met all the engineering specifications identified at the beginning of the project. This document contains the research, ideation processes, design decisions, design outcomes, manufacturing processes, test results, and project management associated with this senior project

Migración de niños y violencia transnacional en Centroamérica y Norteamérica

En los últimos años, ha habido un aumento dramático en el número de niños migrantes no acompañados que tratan de entrar en los Estados Unidos. En 2014, la cifra total alcanzó un máximo de 68.000 detenciones, en su mayoría de Centroamérica y México. Desde entonces, el aumento de las estrategias de control de las migraciones en México ha disminuido la capacidad de los jóvenes migrantes no acompañados, para llegar a la frontera con Estados Unidos. Sin embargo, los factores subyacentes que impulsan la migración infantil no han cambiado. Los niños siguen huyendo de altos niveles de violencia, en particular de El Salvador, Honduras y Guatemala, que actualmente están entre los países más violentos del mundo. Con todo, la violencia para los jóvenes no acaba una vez que salen de la frontera de sus países; como los jóvenes toman autobuses, trenes, barcos y camiones al norte, ellos siguen encontrándola en cada paso, a lo largo del camino. Debido al aumento de la militarización y las políticas punitivas de inmigración en los Estados Unidos, los niños migrantes luchan contra más violencia cuando cruzan la frontera de Estados Unidos / México. En este trabajo, examinamos cómo las manifestaciones de violencia matizadas y variadas conforman las vidas y experiencias de los niños migrantes. Si bien la juventud puede escapar de la violencia inmediata y corporal, explicamos cómo las diferentes formas de violencia influyen no sólo en su decisión de irse, sino también en sus viajes y sus encuentros con las políticas de inmigración de México y EEUU. Abogamos por una comprensión más amplia de la violencia que tenga en cuenta cómo las políticas y las prácticas estatales se extienden más allá de las fronteras nacionales y afectan negativamente la vida de los niños migrantes. &nbsp

Performance of the CMS Cathode Strip Chambers with Cosmic Rays

The Cathode Strip Chambers (CSCs) constitute the primary muon tracking device in the CMS endcaps. Their performance has been evaluated using data taken during a cosmic ray run in fall 2008. Measured noise levels are low, with the number of noisy channels well below 1%. Coordinate resolution was measured for all types of chambers, and fall in the range 47 microns to 243 microns. The efficiencies for local charged track triggers, for hit and for segments reconstruction were measured, and are above 99%. The timing resolution per layer is approximately 5 ns

(Re)imagining spatialities for equity in mathematics education

Contemporary discourse about the ‘opening’/‘closing’ of schools and what is ‘inside’/‘outside’ the curriculum potentially exacerbates existing inequities in mathematics education. This paper explores how different spatial imaginaries might advance or hinder efforts to deeply and systematically pursue equity. We use critical postcolonial thought for our (re)imaginings in the South African context. We argue that viewing the school, the mathematics curriculum, and language as nouned, bounded, spatial objects highlights what needs attention and for whom, but also points to the indelible, structural nature of exclusion. We propose a notion of spatiality as experienced encountering. This recognises all people and their practices as strategic agents, and emphasises relations between people, but also between the mind, body and Earth.Online Paper Presentation is available at: https://zivahub.uct.ac.za/articles/presentation/_Re_Imagining_Spatialities_for_Equity_in_Mathematics_Education_MES11/1657859

Banner News

https://openspace.dmacc.edu/banner_news/1096/thumbnail.jp

The Ursinus Weekly, October 3, 1974

Statistics prove rumor unfounded • WRUC FM hits the air • New chaplain brings new ideas to U.C. • Musical forum presented by Mme. Agi Jambor • Dr. Williamson authors new study of Corinthians • Editorial • Pages from Ursinus past • Alumni corner: Assurance to insurance • Summer in the city • Letter from London • S.F.A.R.C. and you • Assistant Deans of Men and Women appointed • Festival help needed • Slow boat to China • Harriers sweep Drew and Eastern • The Spirit of the 76ers • Women\u27s hockey season opens • Why Bears?https://digitalcommons.ursinus.edu/weekly/1020/thumbnail.jp

Leiomodin-3 dysfunction results in thin filament disorganization and nemaline myopathy

Peer reviewe

The Lantern Vol. 41, No. 1, Fall 1974

• The Fable • Landscape - Clear Weather in the Valley • Josephine Palooka • Don\u27t Bark Twice - It\u27s All Right • Masks • Suicide Note From a Lemming • The Death of Dame Sexton • Come September • Leaves • Spruce Grove • The Class of \u2775 • The Promise • Images • Sixth Station • Borealis • To Gemhttps://digitalcommons.ursinus.edu/lantern/1105/thumbnail.jp

A risk calculator to predict adult Attention-deficit/Hyperactivity disorder::Generation and external validation in three birth cohorts and one clinical sample.

AIM: Few personalized medicine investigations have been conducted for mental health. We aimed to generate and validate a risk tool that predicts adult Attention-Deficit/Hyperactivity Disorder (ADHD).METHODS: Using logistic regression models, we generated a risk tool in a representative population cohort (ALSPAC – UK, 5113 participants, followed from birth to age 17) using childhood clinical and sociodemographic data with internal validation. Predictors included sex, socioeconomic status, single-parent family, ADHD symptoms, comorbid disruptive disorders, childhood maltreatment, ADHD symptoms, depressive symptoms, mother's Depression, and intelligence quotient. The outcome was defined as a categorical diagnosis of ADHD in young adulthood without requiring age at onset criteria. We also tested Machine Learning approaches for developing the risk models: Random Forest, Stochastic Gradient Boosting, and Artificial Neural Network. The risk tool was externally validated in the E-Risk cohort (UK, 2040 participants, birth to age 18), the 1993 Pelotas Birth Cohort (Brazil, 3911 participants, birth to age 18), and the MTA clinical sample (US, 476 children with ADHD and 241 controls followed for 16 years from a minimum of 8 and a maximum of 26 years old). RESULTS: The overall prevalence of adult ADHD ranged from 8.1% to 12% in the population-based samples, and was 28.6% in the clinical sample. The internal performance of the model in the generating sample was good, with an Area Under the Curve (AUC) for predicting adult ADHD of .82 (95% confidence interval [CI], .79 to .83). Calibration plots showed good agreement between predicted and observed event frequencies from 0 to 60% probability. In the UK birth cohort test sample, the AUC was .75 (95% CI, .71 to .78). In the Brazilian birth cohort test sample, the AUC was significantly lower – 57 (95% CI, .54 to .60). In the clinical trial test sample, the AUC was .76 (95% CI, .73 to .80). The risk model did not predict adult Anxiety or Major Depressive Disorder. Machine learning approaches did not outperform logistic regression models. An open-source and free risk calculator was generated for clinical use and is available on-line at https://ufrgs.br/prodah/adhd-calculator/.CONCLUSIONS: The risk tool based on childhood characteristics specifically predicts adult ADHD in European and North-American population-based and clinical samples with comparable discrimination to commonly used clinical tools in internal medicine and higher than most previous attempts for mental and neurological disorders. However, its use in middle-income settings requires caution. <br/