64 research outputs found

    Remediation of Chlorinated Alkanes by Zero Valent Iron with Vitamin B12 and Utilization of a Modified Gradual Release of Responsibility Model in a Large Enrollment Chemistry Course

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    The following dissertation looks at addressing environmental contaminants in the environment and the integration of an active learning style in an introductory chemistry course. It begins with addressing the concern for chlorinated propanes and ethane in the environment and the importance of looking into environmental remediation applications. This research looks at incorporating vitamin B12 as an environmentally friendly catalyst in the presence of zero valent iron for the reduction of chlorinated propanes and ethane. Chapter 2 presents the analytical methods and conditions in which samples were run. The results from these experiments are discussed in length in Chapter 3. Our results confirmed the hypothesis that vitamin B12 could act as an electron mediator to facilitate the reduction of the chlorinated propanes and ethane. Degradation was examined by observing the formation of byproduct peaks and the release of free chloride into solution. In Chapter 4, vitamin B12 is integrated into an already established industrial application technique, emulsified zero valent iron, and we observed the degradation of 1,2,3-trichloropropane with the formation of byproducts as the reaction progressed. In Chapter 5, this section of the dissertation focused on chemical education and observing an active learning technique in a fundamental chemistry course. The following study was designed to increase students\u27 positive attitude, engagement, and responsibility in a large enrollment chemistry course by utilizing a modified Gradual Release of Responsibility (GRR) model. GRR progressively transfers responsibility from the instructor to the student, allowing students to be more independent and helping them to address atypical problems. Students were assessed using iClickers to monitor their understanding and engagement, as well as surveys to determine their attitudes regarding this specific style of teaching. The results from this study demonstrated that implementing the GRR teaching style had a positive effect on student academic performance and shows the importance of using an active teaching model in a large enrollment course

    Faculty-Librarian Cooperation for Virtual STEM Based Courses: Creating Successful Learning Experiences for Undergraduate Students at UCF

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    This conference presentation was delivered at the Special Libraries Association annual virtual conference on August 12, 2021. Session Abstract In this session, University of Central Florida Chemistry Faculty, Dr. Nicole Lapeyrouse and Science Librarian, Sandy Avila will discuss their transition from in-person instruction to online learning during the pandemic and how their professional collaboration developed instructional resources for student success. Prior to COVID-19, a fruitful cooperative relationship was already in place, but quickly having to pivot to remote teaching and learning allowed for additional opportunities for unique experiences to be created. Those include use of open-educational e-texts, interactive online software tools, and other library resources. Come to this session to find out how you can learn from our partnership. Attendees will gain insight into how to develop different types of online activities that promote active learning. They will also learn useful strategies to increase student engagement with novel multimedia software. In addition, will be able to identify key benefits to faculty collaboration with subject librarian liaisons for the dissemination of evidence-based science information

    Prescription Drug Costs: Does Neighborhood Matter?

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    The price of pharmaceuticals can impact one’s ability to purchase needed medication(s). If one cannot afford necessary prescriptions the resulting medication noncompliance can lead to further health complications, increasing the risk of disability, disease progression, and mortality (Mojtabai & Olfson, 2003; Sherbourne, Hays, Ordway, DiMatteo, & Kravitz, 2010). In this research study we aim to answer two questions: (1) Is there a relationship between neighborhood characteristics (population size, race/ethnic composition, median income, and crime) and access to pharmacies?; and (2) Is there a relationship between neighborhood characteristics and pharmaceutical prices? Using 2009-2013 American Community Survey Data, Census block group data was used to identify geographic areas within the City of Flint, Michigan with similar population sizes. Based upon the block group data, the city was then divided into 4 general areas. Among these 4 areas (NE, NW, SE, & SW), a total of eight block groups, 2 block groups per area, were selected. A 1 mile radius of each block group was used when identifying pharmacies. Identified pharmacies were telephoned and asked the out of pocket costs for a 1-month and 90-day supply of four commonly prescribed diabetes medications: Glipizide 5mg, Metformin 500mg, U-100 Humulin N and U-100 Novolin N. This research study will allow us to gain important knowledge about local community health resources and the relationships between neighborhood characteristics, pharmacy access, and variability among diabetes prescription drug costs. This information can also be used to inform patients about the benefits of comparison shopping for needed prescriptions

    Learnings from Mary Kay O’Connor Process Safety Center (MKOPSC) Instrument Reliability Network’s Project on Pressure Transmitter Maintenance Data Collection

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    PresentationThis paper presents the results of the first phase of the pressure transmitter reliability data project executed by the Mary Kay O’Connor Process Safety Center’s (MKOPSC) Instrument Reliability Network (IRN). The quality of the data provided by the six participating companies was checked using self-reporting criteria submitted with each dataset. Out of sixteen reported datasets, only one was excluded due to no devices included in the dataset. The remaining fifteen datasets were used for this analysis. The mean time between corrective maintenance (MTBCM) of the pressure transmitters for the six contributing companies were compared to each other. Even with the limited taxonomy used for this first project phase, it could be concluded that there was a significant difference in corrective maintenance performance between the participating companies and that the company performance seemed to fall into two distinct groups. In addition, it was observed that there could be significant MTBCM variability between multiple datasets submitted by a company, potentially associated to taxonomy details not included in this study

    Equipment Data Collection...Simplified

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    PresentationLack of Equipment Data is a fundamental barrier to understanding asset performance inside of and outside of ERP solutions. Defining the solution is highly dependent on the organization’s existing IT infrastructure, the effectiveness of implementation of these solutions and continuing support to keep data accurate. The costs of the solution can vary by one or more orders of magnitude depending on the organizational goals and value propositions communicated to management. This presentation will address this topic and describe three levels of solution: • Non-Integrated/Unstructured Data – Field Data Collection Tools w/o Comparative Reporting in SAP • Integrated/Structured Data– Intergraph / SAP/ Comparative Reporting • Integrated/Structure Data + Data Governance For Master Data – Intergraph MDG Master Data Governance SAP Solution We will discuss a Multi-generation approach and benefits associated with each generation. We will show a product in each space that can accomplish the above stated objectives

    Knowledge, confidence, and reported behaviors that promote safe water drinking among women of reproductive age

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    IntroductionDrinking lead contaminated water during pregnancy is associated with infant mortality. All women of reproductive age are advised by health agencies to adhere to healthy behaviors due to the chance of unintended pregnancy. Our objectives are to understand knowledge, confidence, and reported behaviors that promote safe water drinking and prevent lead exposure among women of reproductive age.MethodsA survey among females of reproductive age from the University of Michigan - Flint was administered. A total of 83 females who wished to become pregnant one day participated.ResultsLow levels of knowledge, confidence, and reported preventative health behaviors related to safe water drinking and lead exposure prevention existed. Specifically, 71.1% of respondents (59 of 83) were not at all or were somewhat confident in their ability to choose an appropriate lead water filter. Most participants rated their knowledge on how to decrease exposure to lead during pregnancy as poor/fair. No statistically significant differences were detected between respondents residing inside and outside of the city of Flint, Michigan for most variables assessed.ConclusionWhile the small sample size is a limitation, the study adds to an area of scarce research. Despite widespread media attention and resources directed toward reducing the negative health effects of lead exposure following the Flint Water Crisis, significant gaps in knowledge related to safe water drinking remain. Interventions are needed to increase knowledge, confidence, and healthy behaviors that promote safe water drinking among women of reproductive age

    Recent intimate partner violence as a prenatal predictor of maternal depression in the first year postpartum among Latinas

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    The study aims to determine if recent intimate partner violence (IPV) is a prenatal risk factor for postpartum depression (PPD) among pregnant Latinas seeking prenatal care. A prospective observational study followed Latinas from pregnancy through 13 months postpartum. Prenatal predictors of PPD included depression, recent IPV exposure, remote IPV exposure, non-IPV trauma history, poverty, low social support, acculturation, high parity, and low education. Postpartum depression was measured at 3, 7, and 13 months after birth with the Beck's Depression Inventory—Fast Screen. Strength of association was evaluated using bivariate and multivariable odds ratio analysis. Subjects were predominantly low income, monolingual Spanish, and foreign-born, with mean age of 27.7. Recent IPV, prenatal depression, non-IPV trauma, and low social support were associated with greater likelihood of PPD in bivariate analyses. Recent IPV and prenatal depression continued to show significant association with PPD in multivariate analyses, with greater odds of PPD associated with recent IPV than with prenatal depression (adjusted OR = 5.38, p < 0.0001 for recent IPV and adjusted OR = 3.48, p< 0.0001 for prenatal depression). Recent IPV exposure is a strong, independent prenatal predictor of PPD among Latinas. Screening and referral for both IPV and PPD during pregnancy may help reduce postpartum mental health morbidity among Latinas

    Re: Subsys wholesaler

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