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Context.X-ray surveys combined with optical follow-up observations are used to generate complete flux-limited samples of the main X-ray emitting source classes. eROSITA on the Spectrum-Roentgen-Gamma mission provides sufficient sensitivity to build significantly enhanced samples of rare X-ray emitting sources. Aims.We strive to identify and classify compact white dwarf binaries, cataclysmic variables (CVs), and related objects, which were detected in the sky area of eFEDS, the eROSITA Final Equatorial Depths Survey, and they were observed in the plate program of SDSS-V. Methods.Compact white dwarf binaries were selected from spectra obtained in the early SDSS-V plate program. A dedicated set of SDSS plate observations were carried out in the eFEDS field, providing spectroscopic classifications for a significant fraction of the optically bright end (r< 22.5) of the X-ray sample. The identification and subclassification rests on visual inspections of the SDSS spectra, spectral variability, color-magnitude and color-color diagrams involving optical and X-ray fluxes, optical variability, and literature work. Results.Upon visual inspection of SDSS spectra and various auxiliary data products, we have identified 26 accreting compact white dwarf binaries (aCWDBs) in eFEDS, of which 24 are proven X-ray emitters. Among those 26 objects, there are 12 dwarf novae, three WZ Sge-like disk-accreting nonmagnetic CVs with low accretion rates, five likely nonmagnetic high accretion rate nova-like CVs, two magnetic CVs of the polar subcategory, and three double degenerates (AM CVn objects). Period bouncing candidates and magnetic systems are rarer than expected in this sample, but it is too small for a thorough statistical analysis. Fourteen of the systems are new discoveries, of which five are fainter than theGaiamagnitude limit. Thirteen aCWDBs have measured or estimated orbital periods, of which five were presented here. Through a Zeeman analysis, we revise the magnetic field estimate of the polar system J0926+0105, which is likely a low-field polar atB= 16 MG. We quantified the success of X-ray versus optical/UV selection of compact white dwarf binaries which will be relevant for the full SDSS-V survey. We also identified six white dwarf main sequence (WDMS) systems, among them there is one confirmed pre-CV at an orbital period of 17.6 h and another pre-CV candidate. Conclusions.This work presents successful initial work in building large samples of all kinds of accreting and X-ray emitting compact white dwarf binaries that will be continued over the full hemisphere in the years to come.more » « less
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Arctica islandica (ocean quahog), a commercially-important, long-lived bivalve species, is abundant on much of the northeastern United States continental shelf. Several recent studies have noted increases in growth rates of these clams over the last 200 years at some locations in the southern Mid-Atlantic Bight region whereas growth rates at sites farther north have remained constant through time. It has been suggested that these changes in growth rate are related to warming in the more southerly sites. However, a direct comparison between site-specific bottom-water temperatures and A. islandica growth rates has not been done. We present oxygen isotope data measured in Arctica islandica shells, a proxy for seawater temperature, paired with simulated temperature from high-resolution ocean model output to investigate the relationship between A. islandica shell growth rate and bottom water temperatures throughout the northeastern United States continental shelf. The relationship between oxygen isotopes and growth rate in A. islandica is assessed at several locations, including the continental shelf offshore New Jersey and Long Island, and the Georges Bank region. Bottom water temperature trends at these locations are further assessed using the VIKING20X ocean model, which uses JRA55-do (55-year Japanese Atmospheric Reanalysis for driving ocean-sea-ice models) atmospheric forcing from 1958 to present and nests a 1/20° Atlantic Ocean in a 1 ⁄ 4° global domain. The results of this work have implications for the ocean quahog fishery, in particular as water temperatures off the eastern coast of the United States are predicted to continue to increase in response to global climate change. Additionally, this research lends insights into the use of A. islandica growth as a paleoclimate proxy for bottom water temperature.more » « less
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This research paper examines faculty perceptions of and approaches towards fostering students’ motivation to learn engineering at Hispanic-Serving Institutions (HSIs). By aligning learning experiences with what motivates Hispanic or Latinx students, the resulting higher student motivation could increase the sense of belonging for underrepresented populations in engineering, ultimately improving student retention and persistence through meaningful instructional practices. Motivation to learn encompasses individuals' perspectives about themselves, the course material, the broader educational curriculum, and their role in their own learning [1]. Students’ motivation can be supported or hindered by their interactions with others, peers, and educators. As such, an educator’s teaching style is a critical part of this process [2]. Therefore, because of the link between a faculty member’s ability to foster student motivation and improved learning outcomes, this paper seeks to explore how engineering faculty approach student motivation in their course designs at Hispanic-Serving Institutions. Humans are curious beings naturally drawn to exploration and learning. Self Determination Theory (SDT), popularized by Ryan and Deci, describes the interconnection of extrinsic (external) and intrinsic (internal) motivators, acknowledging the link between student’s physiological needs and their learning motivations [1], [3]. SDT proposes that students must experience the satisfaction of competence, autonomy, and relatedness for a high level of intrinsic motivation. Further, research indicates that appropriately structured, highly autonomy-supportive teaching styles that foster intrinsic motivation are associated with improved student outcomes [2]. However, further research is needed to observe how faculty prioritize students’ innate needs and how they seek to foster student motivation in tangible ways within their engineering classrooms. Therefore, this paper seeks to answer the following research question: What educational supports do engineering faculty at HSIs propose to embed in their curricula to increase their students’ intrinsic motivation? To answer this question, thirty-six engineering educators from thirteen two- and four-year HSIs from across the continental United States were introduced to the SDT and approaches for supporting students’ intrinsic motivation during a multi-institutional faculty development workshop series. Participants were asked to reflect on and prototype learning experiences that would promote intrinsic motivation and fulfill students’ needs for competence, relatedness, and autonomy to learn engineering [1]. Data were collected through a series of reflection worksheets where participants were asked to describe their target stakeholders, define a course redesign goal, and generate possible solutions while considering the impact of the redesign on student motivation. Qualitative analysis was used to explore participant responses. Analysis indicates that the participants were more likely to simultaneously address multiple motivational constructs when attempting to improve student motivation, rather than addressing them individually. Some of these approaches included the adoption of autonomy-supportive and structured teaching styles. As a result of this research, there is potential to influence future faculty development opportunities at HSIs and further explore intentional learning experiences that promote and foster intrinsic motivation in the engineering classroom.more » « less
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The AMPLIFY project, funded through the NSF HSI Program, seeks to amplify the educational change leadership of Engineering Instructional Faculty (EIF) working at Hispanic Serving Institutions (HSIs). HSIs are public or private institutions of higher education enrolling over 25% full-time undergraduate Hispanic or Latinx-identifying students [1]. Many HSIs are exemplars of developing culturally responsive learning environments and supporting the persistence and access of Latinx engineering students, as well as students who identify as members of other marginalized populations [2]. Our interest in the EIF population at HSIs arises from the growing body of literature indicating that these faculty play a central role in educational change through targeted initiatives, such as student-centered support programs and the use of inclusive curricula that connect to their students’ cultural identities [3]–[7]. Our research focuses on exploring methods for amplifying the engineering educational change efforts at HSIs by 1) making visible the experiences of engineering instructional faculty at HSIs and 2) designing, implementing, and evaluating a leadership development model for engineering instructional faculty, thereby 3) equipping and supporting these faculty as they lead educational change efforts. To achieve these goals, our project team, comprising educational researchers, engineering instructional faculty, instructional designers, and graduate students from three HSIs (two majority-minority and one emerging HSI), seeks to address the following research questions: 1) What factors impact the self-efficacy and agency of EIF at HSIs to engage in educational change initiatives that encourage culturally responsive, evidence-based teaching within their classrooms, institutions, or beyond? 2) What are the necessary competencies for EIF to be leaders of this sort of educational change? 3) What individual, institutional, and professional development program features support the educational change leadership development of EIF at HSIs? 4) How does engagement in leadership development programming impact EIF educational leadership self-efficacy and agency toward developing and using culturally responsive and evidence-based approaches at HSIs? This multi-year project uses various qualitative, quantitative, and participatory research methods embedded in a series of action research cycles to provide a richer understanding of the successes and needs of EIF at HSIs [8]. The subsequent design and implementation of the AMPLIFY Institute will make visible the features and content of instructional faculty development programs that promote educational innovation at HSIs and foster a deeper understanding of the framework's impact on faculty innovation and leadership.more » « less
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CONTEXT Engineering education is an interdisciplinary research field where scholars are commonly embedded within the context they study. Engineering Education Scholars (EES), individuals who define themselves by having expertise associated with both engineering education research and practice, inhabit an array of academic positions, depending on their priorities, interests, and desired impact. These positions include, but are not limited to, traditional tenure-track faculty positions, professional teaching or research positions, and positions within teaching and learning centers or other centers. EES also work in diverse institutional contexts, including engineering disciplinary departments, first-year programs, and engineering education departments, which further vary their roles. PURPOSE OR GOAL The purpose of this preliminary research study is to better understand the roles and responsibilities of early-career EES. This knowledge will enable PhD programs to better prepare engineering education graduates to more intentionally seek positions, which is especially important given the growing number of engineering education PhD programs. We address our purpose by exploring the following research question: How can we describe the diversity of academic or faculty roles early-career EES undertake? APPROACH OR METHODOLOGY/METHODS We implemented an explanatory sequential mixed-methods study starting with a survey (n=59) to better understand the strategic actions of United States-based early-career EES. We used a clustering technique to identify clusters of participants based on these actions (e.g., teaching focused priorities, research goals). We subsequently recruited 14 survey participants, representing each of the main clusters, to participate in semi-structured interviews. Through the interviews, we sought to gain a more nuanced understanding of each participant’s actions in the contexts of their roles and responsibilities. We analyzed each interview transcript to develop memos providing an overview of each early-career EES role description and then used a cross case analysis where the unit of analysis was a cluster. ACTUAL OUTCOMES Five main clusters were identified through our analysis, with three representing primarily research-focused day-to-day responsibilities and two representing primarily teaching-focused day-to-day responsibilities. The difference between the clusters was influenced by the institutional context and the areas in which EES selected to focus their roles and responsibilities. These results add to our understanding of how early-career EES enact their roles within different institutional contexts and positions. CONCLUSIONS/RECOMMENDATIONS/SUMMARY This work can be used by graduate programs around the world to better prepare their engineering education graduates for obtaining positions that align with their goals and interests. Further, we expect this work to provide insight to institutions so that they can provide the support and resources to enable EES to reach their desired impact within their positions.more » « less
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CONTEXT Engineering education is an interdisciplinary research field where scholars are commonly embedded within the context they study. Engineering Education Scholars (EES), individuals who define themselves by having expertise associated with both engineering education research and practice, inhabit an array of academic positions, depending on their priorities, interests, and desired impact. These positions include, but are not limited to, traditional tenure-track faculty positions, professional teaching or research positions, and positions within teaching and learning centers or other centers. EES also work in diverse institutional contexts, including engineering disciplinary departments, first-year programs, and engineering education departments, which further vary their roles. PURPOSE OR GOAL The purpose of this preliminary research study is to better understand the roles and responsibilities of early-career EES. This knowledge will enable PhD programs to better prepare engineering education graduates to more intentionally seek positions, which is especially important given the growing number of engineering education PhD programs. We address our purpose by exploring the following research question: How can we describe the diversity of academic or faculty roles early-career EES undertake? APPROACH OR METHODOLOGY/METHODS We implemented an explanatory sequential mixed-methods study starting with a survey (n=59) to better understand the strategic actions of United States-based early-career EES. We used a clustering technique to identify clusters of participants based on these actions (e.g., teaching focused priorities, research goals). We subsequently recruited 14 survey participants, representing each of the main clusters, to participate in semi-structured interviews. Through the interviews, we sought to gain a more nuanced understanding of each participant’s actions in the contexts of their roles and responsibilities. We analyzed each interview transcript to develop memos providing an overview of each early-career EES role description and then used a cross case analysis where the unit of analysis was a cluster. ACTUAL OUTCOMES Five main clusters were identified through our analysis, with three representing primarily research-focused day-to-day responsibilities and two representing primarily teaching-focused day-to-day responsibilities. The difference between the clusters was influenced by the institutional context and the areas in which EES selected to focus their roles and responsibilities. These results add to our understanding of how early-career EES enact their roles within different institutional contexts and positions. CONCLUSIONS/RECOMMENDATIONS/SUMMARY This work can be used by graduate programs around the world to better prepare their engineering education graduates for obtaining positions that align with their goals and interests. Further, we expect this work to provide insight to institutions so that they can provide the support and resources to enable EES to reach their desired impact within their positions.more » « less