Improving Teacher Retention by Addressing Teachers\u27 Compassion Fatigue

California is experiencing a massive teacher shortage, and urban schools are disproportionately affected by it negatively. Retention efforts to date have not included strategies to address Compassion Fatigue (burnout and secondary trauma) teachers experience when working with traumatized students at urban schools. This dissertation explores whether Compassion Fatigue is an unaddressed reason for teacher attrition at urban schools. A mixed method practical action research approach using the Professional Quality of Life Scale Version Five (ProQOL 5) and qualitative interviews, portions of which were turned into illustrative vignettes drove the exploration. Approximately 114 teachers completed the ProQOL 5. Statistical analysis of the ProQOL 5 results showed that female teachers experience more compassion fatigue than male teachers; compassion fatigue is more acute with beginning teachers than with veteran teachers; and that teachers working at high-poverty schools experience statistically significant differences in compassion satisfaction and fatigue than teachers at low poverty schools. Correlation tests revealed statistically significant relationships between compassion fatigue and the school’s racial demographics even when controlling for the socioeconomically disadvantaged status of the school and teacher ethnicity. Linear regression models showed that the percentage of African American students in the school is a statistically significant predictor of compassion fatigue. Qualitative interview analysis showed that secondary trauma from students is not the only trauma teachers are experiencing, and that school climate and conditions matter when attempting to retain teachers. In the final phase of the action research, a policy brief was developed through a collaborative and iterative process, based both on the findings and engagement with stakeholders. If California is serious about producing and retaining high-quality teachers at all urban schools,’ efforts to mitigate compassion fatigue should be undertaken immediately

Alternative Energy Choices, Conservation, and Management: A Primer for Advanced Manufacturing Managers

Manufacturing managers need to understand the interrelated links between advanced manufacturing technology, primary and alternative energy choices, energy output values and costs, and energy conservation over the life of a project. Through an overview of these topics and the manager’s energy conservation processing optimization model developed in this paper, manufacturing managers, engineering technologists, and academics gain greater insight to the impacts of energy technologies upon manufacturing activities

The Malcolm Baldrige Award: What Technology Managers Can Learn From Health Care Winners

The Malcolm Baldrige Award is the highest presidential award for quality in the United States. Since 2002 there have been 28 winners of the award: eight from the health care field and four from the manufacturing category. This study identifies significant characteristics of health care award winners that can translate into exceptional quality and revenue performance for technology managers in manufacturing

Role of School-Based Occupational Therapy Practitioners: Perspectives from Teachers and OTs

Schools are the third largest employer of occupational therapists (OTs) in the United States (U.S. Bureau of Labor Statistics, 2021). Occupational Therapists have the distinctive ability to observe the child in their natural context of the school, a place where children participate in a variety of activities (Benson et al., 2015). The problem is that there continues to be discrepancies in the understanding and utilization of OT services in the school setting that affect the perceptions of both OTs and teachers regarding the OT role in school, and general service provision (Bolton & Plattner, 2020; Seruya & Garfinkel, 2020; Truong & Hodgetts, 2017). The purpose of this capstone project was to analyze perceptions of both OTs and teachers regarding the OT role in school, and service provision. An interview was conducted to gather these perceptions. Participants consisted of 20 OTs. It was concluded that the roles and responsibilities are understood by school-based Occupational Therapists, but there is a lack of knowledge by some teachers on the scope of school-based OT practice. There is a need for improved OT service delivery in the school system as well as a need for more school-based OT. A broadening of the realm of school-based OT practice to include mental health and social emotional functioning would also be of benefit to the practice. In addition, there is a need for improved education of school-based OT provided to OT students while in school. Furthermore, Pull-out service were perceived to be the most effective and beneficial method of school-based Occupational Therapy service delivery.https://soar.usa.edu/otdcapstonesfall2021/1032/thumbnail.jp

Effect of NRG1, GDNF, EGF and NGF in the Migration of a Schwann Cell Precursor Line

The Schwann cells are the myelinating glia of the peripheral nervous system that originated during development from the highly motile neural crest. However, we do not know what the guidance signals for the Schwann cell precursors are. Therefore, we set to test some of the known neurotrophins that are expressed early in developing embryos and have been shown to be critical for the survival and patterning of developing glia and neurons. The goal of this study was to determine more specifically if GDNF, NRG1 and NGF are chemoattractants and/or chemokinetic molecules for a Schwann cell precursor line, the Spl201. We performed live chemoattraction assays, with imaging and also presented these molecules as part of their growing substrate. Our results show for the first time that GDNF and NRG1 are potent chemoattractive and chemokinetic molecules for these cells while NGF is a chemokinetic molecule stimulating their motility

Daily dynamics of contrasting spring algal blooms in Santa Monica Bay (central Southern California Bight)

© The Author(s), 2022. This article is distributed under the terms of the Creative Commons Attribution License. The definitive version was published in Ollison, G., Hu, S., Hopper, J., Stewart, B., Smith, J., Beatty, J., Rink, L., & Caron, D. Daily dynamics of contrasting spring algal blooms in Santa Monica Bay (central Southern California Bight). Environmental Microbiology. (2022), https://doi.org/10.1111/1462-2920.16137.Protistan algae (phytoplankton) dominate coastal upwelling ecosystems where they form massive blooms that support the world's most important fisheries and constitute an important sink for atmospheric CO2. Bloom initiation is well understood, but the biotic and abiotic forces that shape short-term dynamics in community composition are still poorly characterized. Here, high-frequency (daily) changes in relative abundance dynamics of the metabolically active protistan community were followed via expressed 18S V4 rRNA genes (RNA) throughout two algal blooms during the spring of 2018 and 2019 in Santa Monica Bay (central Southern California Bight). A diatom bloom formed after wind-driven, nutrient upwelling events in both years, but different taxa dominated each year. Whereas diatoms bloomed following elevated nutrients and declined after depletion each year, a massive dinoflagellate bloom manifested under relatively low inorganic nitrogen conditions following diatom bloom senescence in 2019 but not 2018. Network analysis revealed associations between diatoms and cercozoan putative parasitic taxa and syndinean parasites during 2019 that may have influenced the demise of the diatoms, and the transition to a dinoflagellate-dominated bloom.This work was supported by the National Science Foundation #1136818 (David A. Caron)

Physiology governing diatom vs. dinoflagellate bloom and decline in coastal Santa Monica Bay

Algal blooms on the Southern California coast are typically dominated by diatom and dinoflagellate taxa, and are governed by their physiological responses to environmental cues; however, we lack a predictive understanding of the environmental controls underlying the establishment and persistence of these distinct bloom events. In this study, we examined gene expression among the numerically dominant diatom and dinoflagellate taxa during spring upwelling bloom events to compare the physiological underpinnings of diatom vs. dinoflagellate bloom dynamics. Diatoms, which bloomed following upwelling events, expressed genes related to dissolved inorganic nitrogen utilization, and genes related to the catabolism of chitin that may have prolonged their bloom duration following nitrogen depletion. Conversely, dinoflagellates bloomed under depleted inorganic nitrogen conditions, exhibited less variation in transcriptional activity, and expressed few genes associated with dissolved inorganic nutrients during their bloom. Dinoflagellate profiles exhibited evidence of proteolysis and heterotrophy that may have enabled them to bloom to high abundances under depleted inorganic nutrients. Taken together, diatom and dinoflagellate transcriptional profiles illustrated guild-specific physiologies that are tuned to respond to and thrive under distinct environmental “windows of opportunity.

Comparison of dimensional accuracies of stereolithography and powder binder printing

This paper presents a comparative experimental investigation of the dimensional accuracies of two widely used rapid prototyping (RP) processes: stereolithography (SLA) and powder binder printing (PBP). Four replicates of a purpose-designed component using each RP process were fabricated, and the measurements of the internal and external features of all surfaces were performed using a general-purpose coordinate measurement machine. The results showed that in both cases, the main cause of dimensional variations was the volumetric change inherent in the process. The precision of SLA was far better than that of PBP. The dimensional accuracy of SLA was better in the z direction, whereas PBP produced better dimensional accuracy in the x–y plane. In both RP processes, the height error consisted of two components: constant error and cumulative error. The constant error component was equal to the datum surface error. SLA yielded an average datum surface error that was 68 % higher than in PBP. The height error of SLA improved with the increase in nominal height, whereas it deteriorated in PBP

Uncertainty evaluation associated with versatile automated gauging influenced by process variations through design of experiments approach

Recent advances in versatile automated gauging have enabled accurate geometric tolerance assessment on the shop floor. This paper is concerned with the uncertainty evaluation associated with comparative coordinate measurement using the design of experiments (DOE) approach. It employs the Renishaw Equator which is a software-driven comparative gauge based on the traditional comparison of production parts to a reference master part. The fixturing requirement of each production part to the master part is approximately ±1 mm for a comparison process with an uncertainty of ±2 μm. Therefore, a number of experimental designs are applied with the main focus on the influence of part misalignment from rotation between master and measure coordinate frames on the comparator measurement uncertainty. Other factors considered include measurement mode mainly in scanning and touch-trigger probing (TTP) and alignment procedure used to establish the coordinate reference frame (CRF) with respect to the number of contact points used for each geometric feature measured. The measurement uncertainty analysis of the comparator technique used by the Equator gauge commences with a simple measurement task using a gauge block to evaluate the three-dimensional (3D) uncertainty of length comparative coordinate measurement influenced by an offset by tilt in one direction (two-dimensional angular misalignment). Then, a specific manufactured measurement object is employed so that the comparator measurement uncertainty can be assessed for numerous measurement tasks within a satisfactory range of the working volume of the versatile gauge. Furthermore, in the second case study, different types of part misalignment including both 2D and 3D angular misalignments are applied. The time required for managing the re-mastering process is also examined. A task specific uncertainty evaluation is completed using DOE. Also, investigating the effects of process variations that might be experienced by such a device in workshop environments. It is shown that the comparator measurement uncertainties obtained by all the experiments agree with system features under specified conditions. It is also demonstrated that when the specified conditions are exceeded, the comparator measurement uncertainty is associated with the measurement task, the measurement strategy used, the feature size, and the magnitude and direction of offset angles in relation to the reference axes of the machine. In particular, departures from the specified part fixturing requirement of Equator have a more significant effect on the uncertainty of length measurement in comparator mode and a less significant effect on the diameter measurement uncertainty for the specific Equator and test conditions