Initial Interest Research Articles

The Feasibility of Virtual Toxicity Assessments in Lymphoma Patients Receiving Immunochemotherapy

Background: In recent years, there has been a growing interest in telemedicine initiatives that maximize outcomes, reduce healthcare costs, and improve quality. The COVID-19 pandemic reduced healthcare access for many patients, including those undergoing chemotherapy, and thus accelerated these initiatives. We sought to evaluate the potential utility of telemedicine initiatives for lymphoma patients undergoing immunochemotherapy.Methods: To address this question, we conducted a retrospective review of adult lymphoma patients receiving R-CHOP +/- R, R-ICE, R-GEMOX, and R-DHAP at our institution in the last three years (2017-2019), and identified those for which dose modifications were required. Dose modifications were defined as a change in prescribed dose from the preceding cycle, or a change in the administered dose by 10% or greater. Laboratory results, patient history, and/or physical exam findings that informed dose modifications were retrospectively identified.Results: Of the 1,290 total treatment cycles identified in 301 unique patients, 1,102 cycles (85.4%) were R-CHOP +/- R, 105 (8.1%) were R-ICE, 71 (5.5%) were R-GEMOX, and 12 (0.9%) were R-DHAP. We found that 144 cycles (11.2%) were subject to dosing adjustments. The cohort of patients that received dose adjustments was comprised of 104 unique patients, of which 87 (60.4%) were male and 57 (39.6%) were female. Average age at diagnosis was 64 years old (Range: 22-91). Our cohort represented greater than 10 different lymphoma subtypes, most commonly Diffuse Large B-cell lymphoma (66.3%), Follicular lymphoma (14.5%), and Peripheral T-cell lymphomas (7.7%). We examined the basis for each dose adjustment by reviewing the clinical records from visits immediately preceding the dose adjusted cycle. Of the 144 dose adjustments, 11% of cycles contained dose increases due to a well-tolerated previous dose noted in the clinical assessment based on a combination of laboratory findings, interim history, and physical exam. The remaining 89% of adjustments (n=128) were dose reductions. The decision to dose reduce was most commonly informed by the clinical history (n=104, 81%). The clinical history was dichotomized into newly reported patient symptoms (69/104) or interim complications (35/104), usually infectious (n=26). Clinical assessments utilized laboratory findings as a rationale for dose reductions in 33/128 (26%) of cycles, most of which were secondary to myelosuppression (28/33 cycles). In contrast, only 7/128 dose reductions were based on physical exam findings alone, all of which were due to a change in patient body weight. As patients are routinely weighed immediately prior to chemotherapy administration, effectively no dose modifications (0/144) were exclusively based on abnormal physical exam finding during a pre-infusion assessment.Conclusions: The inability to perform a complete physical exam is a notable limitation of telemedicine initiatives. However, in an unselected group of lymphoma patients treated with immunochemotherapy, who subsequently had dose reductions to their regimens, we have found that all of the dose modifications were based on laboratory findings or the patient history, both of which are amenable to virtual visits. In stark contrast, no dose modifications were prompted by an abnormal physical exam finding alone. While further studies are needed, the data reviewed supports the implementation of telemedicine initiatives in lymphoma patients undergoing immunochemotherapy during the pandemic and potentially long term.DisclosuresPhillips:Karyopharm: Consultancy; AstraZeneca: Consultancy; Beigene: Consultancy; Abbvie: Consultancy, Research Funding; Pharmacyclics: Consultancy; Bayer: Consultancy, Research Funding; BMS: Consultancy; Incyte: Consultancy, Other: travel expenses; Seattle Genetics: Consultancy; Cardinal Health: Consultancy.

An initial accuracy focus reduces the effect of prior exposure on perceived accuracy of news headlines

The illusory truth effect occurs when the repetition of a claim increases its perceived truth. Previous studies have demonstrated the illusory truth effect with true and false news headlines. The present study examined the effects that different ratings made during initial exposure have on the illusory truth effect with news headlines. In two experiments, participants (total N = 575) rated a set of news headlines in one of two conditions. Some participants rated how interesting they were, and others rated how truthful they were. Participants later rated the perceived accuracy of a larger set of headlines that included previously rated and new headlines. In both experiments, prior exposure increased perceived accuracy for participants who made initial interest ratings, but not for participants who made initial truthfulness ratings. The increase in perceived accuracy that accompanies repeated exposure was attenuated when participants considered the accuracy of the headlines at initial exposure. Experiment 2 also found evidence for a political bias: participants rated politically concordant headlines as more accurate than politically discordant headlines. The magnitude of this bias was related to performance on a cognitive reflection test; more analytic participants demonstrated greater political bias. These results highlight challenges that fake news presents and suggest that initially encoding headlines’ perceived truth can serve to combat the illusion that a familiar headline is a truthful one.

Empowered collective: Formulating a black feminist information community model through archival analysis

AbstractThis poster presents a critical‐qualitative evidence inquiry approach to examine the information dynamics of African American mothers in an historic (1955–1970) Chicago public housing community. This research builds upon initial interest in their activism for the construction of a neighborhood library, to exploring the information rich system emanating from the community they inhabit (Gray In a collective voice: Uncovering the black feminist information community of activist‐mothers in Chicago Public Housing, 1955‐1970). The three phase eight step qualitative evidence approach includes descriptive and complex theoretical analysis contributing to the formulation of a Black Feminist Information Community (BFIC) model.

Avocado toast and pot roast: exploring perceptions of generational communication differences among health sciences librarians.

Objective:This research explored health sciences librarians' perceptions of intergenerational communication in the workplace.Methods:The authors developed and sent a survey to health sciences librarians through email discussion lists from August 2018 to September 2018. A chi-square test was performed to determine whether one's length of employment as a librarian was associated with belief that age and/or generation impacts communication in the workplace.Results:A total of 150 respondents from 5 countries completed the survey. There was no significant association between length of employment as a librarian and respondents' belief that age and/or generation impacts communication in the workplace. However, regardless of length of employment, most respondents indicated that generational differences do have an impact on communication in the workplace. Also, most respondents expressed interest in institutional initiatives to foster intergenerational communication.Conclusion:The authors found that health sciences librarians believe that differences among generations impact communication in the workplace. Librarians, managers, and library organizations should consider providing training and other opportunities for health sciences librarians to improve their intergenerational communication skills.

ИЛЬЯ САМУИЛОВИЧ ГУРВИЧ: УРОКИ УЧЕНОГО. ОТ ЭТНОГРАФИИ К СОВРЕМЕННОЙ ПРАКТИЧЕСКОЙ АНТРОПОЛОГИИ

In this article, the daughter of I.S. Gurvich discusses his legacy as a scientist, his contagious enthusiasm for ethnography, and his impact on her. She describes how his behavior, stories, and reminiscences sparked her initial interest in different cultures and reflects on how his research and work influenced her decision to become an anthropologist and researcher herself. She sees many parallels in her current work as a UX Researcher and corporate anthropologist with that of her father. This article also offers a short history of anthropology's entry into corporate practice, mirroring her own journey from academia, and discusses the relevance of the experiences of Soviet and Russian ethnographers for the contemporary global community of anthropologists involved in developing technology products and innovations.

Open-source automated centrifugal pump test rig

Design methods for large industrial pumps are well developed, but they cannot be relied upon when designing specialised miniature pumps, due to scaling issues. Therefore, the design and development phase of small pumps demand numerous experimental tests to ensure a viable prototype. Of initial interest is hydraulic design in the form of pump performance and efficiency curves. This project aimed to produce an automated test rig capable of generating both the performance (P-Q – pressure vs. flow rate) and efficiency curves that are reliable and repeatable. The apparatus is largely customizable and suitable for a range of smaller pump sizes. The pump impeller and volute were 3D printed, allowing for design flexibility and rapid prototyping and testing.The test loop was automated which allowed the flow rate to be incremented from 0 L/min to the maximum flow rate. At each step the pressure, flow rate, voltage and current were recorded to generate the P – Q and efficiency curves. Repeatability results showed low variations of ±3 mmHg (400 Pa) in pressure and ± 2% in hydraulic efficiency. The given setup can be used to compare and evaluate the hydraulic performance of various pump designs.

A Longitudinal, Qualitative Exploration of Perceived HIV Risk, Healthcare Experiences, and Social Support as Facilitators and Barriers to PrEP Adoption Among Black Women.

Black women contract HIV at much higher rates than White or Hispanic women. Pre-exposure prophylaxis (PrEP) is an underutilized prevention tool among this population. We sought to determine participants' interest in PrEP and facilitators and barriers to PrEP adoption. This longitudinal, qualitative study included 30 Black women (Mage = 32.2) interviewed 4 times over 6months. Most participants had never heard of PrEP and a majority expressed initial interest. Barriers to PrEP initiation included low perceived HIV risk, medical mistrust, provider experiences and knowledge, negative reactions from family and friends, low perceived efficacy to adherence, and transportation. This study demonstrated actual, rather than hypothetical, PrEP interest and attitudes among Black women, and the barriers that arose over time during the study. PrEP awareness needs to be promoted among Black women and medical providers. Future research should address individual risk perception, medical mistrust, increasing social support, and decreasing transportation barriers.

Perceived Influence of Medical Students' Community Health Assessment Projects.

To achieve overall health, physicians must understand how community and population health impacts individual health. Although several US medical schools have incorporated community health assessment project requirements into traditional curricula, examples in longitudinal integrated clerkships are unknown. This study was designed to assess alumni perceptions of the influence of community health assessment projects, a core component of the University of Minnesota Rural and Metropolitan Physician Associate Program's (RPAP/MetroPAP) 9-month longitudinal integrated curriculum. This 2018 study consisted of a descriptive cross-sectional survey of 480 RPAP/MetroPAP alumni who completed 457 community health assessment projects between 2004/2005 and 2016/2017. The authors administered a 14-item survey requesting date and location of RPAP/MetroPAP 9-month placement, name of project, source of project idea, and perception of project influence on professional activities. Quantitative data were collected using 4-point Likert scales. We collected qualitative data with open text boxes. The survey response rate was 42.29% (203/480). A key finding was alumni perceived project ideas arising from community partners had greater impact on their acquisition of several community engagement skills. One-half reported projects influenced their professional activities, evidenced by ongoing community engagement, interest and participation in public health and preventive health initiatives, efforts to learn about specific health issues, social determinants of health and patient advocacy. This exploratory study suggests medical student community health assessment projects enhance community engagement and soliciting project ideas from community partners increases student acquisition of community engagement skills.

106. UTILITY OF A QUALITY DASHBOARD ESTABLISHED BY A RESIDENT QUALITY COUNCIL

Quality Improvement (QI) science focuses on how healthcare is delivered (process measures) and the results (outcome measures). Although instruction in QI methodology is recognized as an important part of a resident's education, maintaining resident engagement is a challenge. A Resident Quality Council (RQC) was established to (1) create and maintain a resident-generated and relevant quality dashboard, (2) enhance resident awareness of in-hospital QI initiatives, and (3) increase QI scholarly activity among residents. A RQC was established in 2017 consisting of five resident champions and three chief residents, mentored by program leadership, a Chief Quality Officer, and QI staff. To increase resident engagement a continuously updated resident-inspired dashboard, which highlighted both quality and operational standards, was created. Metrics were chosen based on resident feedback. Over 18 months, a lecture series was introduced into the residency curriculum which highlighted various QI initiatives with a special focus on process and outcome measures related to the dashboard. At the start of the 2019-2020 academic year, the RQC surveyed residents in regards to their level of QI engagement and the utility of the dashboard as part of the residency curriculum. The most relevant metrics, as reported, included asthma guidelines, length of stay, and number of safety events. There was a reported increase in understanding of a dashboard's utility from 15.8% to 78.3% (N = 23). 78% reported continued interest in the maintenance of a dashboard with resident-pertinent metrics and acknowledged that the dashboard contributed to their understanding of the significance of QI science. Lastly, 87% felt the knowledge presented to them through the dashboard directly resulted in their increased interest in in-hospital QI initiatives and their desire to partake in QI scholarly work. Establishment of an RQC has proven beneficial in promoting QI interest amongst residents. Resident-pertinent dashboard metrics have kept housestaff engaged and interested in expanding their QI fund of knowledge through QI-driven scholarly projects.

Plan de negocio para la creación de una empresa comercializadora de harina de zapallo, en la ciudad de Machala

The change in the food pattern in developing countries and in the lifestyles of the population, have modified the way of eating, so this research focuses on the development of a business plan for the creation of a company producing and marketing flour based on pumpkin pulp, in the city of Machala, the aim is to determine the economic feasibility of the project, desired characteristics of the product for the final consumer, by conducting a market study, and financial analysis through the development of cash flow, to verify the economic viability; the main tool for obtaining primary information was the survey, a random sample was made with descriptive statistics variables, the results obtained were tabulated through a database developed in Excel, and analyzed through the statistical program SPSS version 24; based on the results obtained that the demand for pumpkin flour is in the middle and upper middle social class, with a presentation of the product of 250 gr at a cost of $1.10 ctvs. Once the different financial indicators are applied, a net present value (NPV) of USD $211,895.88 is obtained; an internal rate of return (IRR) of 29%, which is higher than the initial interest rate, is recommended for immediate acceptance, the investment is recovered in a period of 4 years and 5 months approximately.

Implementation of an Intravenous Dihydroergotamine Protocol for Refractory Migraine in Children.

Retrospective chart review to assess the effectiveness of an institutional intravenous (IV) dihydroergotamine (DHE) therapy protocol for refractory migraine in the pediatric population. Limited high-quality evidence exists to guide the approach to treatment of refractory migraine with IV DHE, particularly in the pediatric population. This study reviews our institutional experience in implementing an IV DHE protocol in children to identify areas for improvement. We specifically sought to determine whether the outcome differed at follow-up between children who completed the full course of DHE (8 or 9 doses) as specified in our institutional protocol and those who did not. In addition, given the limited Food and Drug Administration-approved treatments for chronic migraine (CM) in the pediatric population, re-evaluating the response rate in this group of patients was of particular interest. A retrospective cohort based on a chart review of 159 consecutive pediatric patients who received IV DHE while inpatient at University of Virginia Children's Hospital over a 9-year period (January 2011-January 2019) was identified. Patients were classified according to the International Classification of Headache Disorders, 3rd edition criteria as having CM, status migrainosus, or, in a small number of patients, Other headache with migrainous features. To investigate any benefit of completing the full course of DHE, patients were categorized as having completed the DHE protocol ("Protocol Complete" 8 or 9 doses) or not completing the protocol ("Protocol Incomplete" <8 doses). Patient-reported pain scores upon admission and discharge were recorded, and follow-up outcomes were categorized as headache freedom, >50% relief, <50% relief, or no relief. Pain outcomes were analyzed with respect to DHE protocol complete status and headache classification. A total of 159 patients were included in the analysis. The headache diagnosis was CM in 49% (78/159), status migrainosus in 44% (70/159), and Other headache with migrainous features in 7% (11/159). At discharge, 60% (96/159) of patients achieved headache freedom, and no statistically significant difference was found in relative change in headache among the CM, status migrainosus, and Other headache groups. Patients who completed the full 8 or 9 dose IV DHE protocol were more likely to have persistent headache at discharge, with a median pain score of 1.0 (IQR 0.0-4.0) compared to a score of 0.0 (IQR 0.0-1.0) in the DHE incomplete group (P<.001). No difference was found in pain relief outcomes at follow-up in the DHE protocol complete and DHE protocol incomplete groups. Although limited by the absence of a control group, our data support repetitive IV DHE as an abortive therapy for pediatric patients with status migrainosus or CM, with no evidence of differential efficacy in these groups. A higher rate of headache at discharge in the DHE protocol complete group reflects in large part the common decision to discontinue treatment once headache freedom was achieved, resulting in nonresponders being more likely to complete the full course of DHE. In our cohort, there was no difference in pain relief at follow-up between patients who completed the full 8 or 9 doses of DHE and those that did not. Discontinuing DHE once the patient has achieved headache freedom would therefore achieve the therapeutic goal while shortening the hospital stay. To potentially impact longer term pain relief, incorporation of a comprehensive treatment approach into the IV DHE admission is of interest for future study and quality improvement initiatives.

Direct marketing of an event under hazards of customer saturation and forgetting

We address the problem of optimising the intensity of online advertising. In contrast to the classical literature, we tackle the advertising interaction between the firm and the potential customer, for the sale of a onetime event, in a very limited time horizon. The problem is intrinsically dynamic due to two conflicting situations: the first arises when the customer is subjected to intense advertising pressure, which may lead to customer saturation and even irritation, while the second is the tendency for customers to forget if they are not reminded systematically through advertising. In order to determine an optimal event-advertising policy and develop an efficient enumerative shooting algorithm to solve the problem, we suggest a hazard rate-based approach to modelling the conflicting factors. Our analysis shows that the initial level of customer interest in the event has a non-trivial effect on the dynamics of the optimal advertising policy. In particular, this advertising policy consists of a monotonic increase over time prior to the event in the case of high initial interest and a concave, peak-wise form in the case of low initial interest.

Temporal variation in the population of bulbuls (Family Pycnonotidae) in lower montane forest, Northern Thailand

Abstract. Ponpituk Y, Siri S, Safoowong M, Suksavate W, Marod D, Duengkae P. 2020. Temporal variation in the population of bulbuls (Family Pycnonotidae) in lower montane forest, Northern Thailand. Biodiversitas 21: 3644-3649. Temporal variations in the population of bulbuls (Family Pycnonotidae) were studied over the course of four years in a 16-ha lower montane permanent plot, Northern Thailand. This study aimed to determine the relationship of the temporal variation of forest gaps with the population size of the bulbul, which plays a crucial role in seed dispersal and insect control in tropical forest ecosystems. This long-term monitoring study in a permanent plot was conducted monthly from January 2016 through October 2019. Data were collected using the mist-netting method for the capture-recapture protocol with individual bird banding. A total of 33,120 traps hour for 46 months,180 traps hour per day and 720 traps hour per month were recorded. The banding of a total of 94 individual bulbuls resulted in their classification into 5 species, consisting of Puff-throated Bulbul (Alophoixus pallidus), Mountain Bulbul (Ixos mcclellandii), Black-crested Bulbul (Pycnonotus flaviventris), Ashy Bulbul (Hemixos flavala) and Flavescent Bulbul (Iole virescens). The annual average density of bulbul for four years tended to decrease, but the difference was not significant. The highest average population occurred in 2016 and the lowest in 2018 with the changes being attributable to forest gap. Over time, monthly detection of bulbuls decreased gradually under closed canopy conditions, while in forest gaps, bird detection remained constant. As gap conditions so did detection probabilities. Our findings suggest that natural forest gaps can play an essential role as a temporal inhibitor to the rapid bird population decrease in the lower montane forest. This study will be useful for bird conservation and in balancing ecosystems for sustainability and providing interest in conservation initiatives requiring spatially explicit estimates of density.

Body sway predicts romantic interest in speed dating.

Social bonding is fundamental to human society, and romantic interest involves an important type of bonding. Speed dating research paradigms offer both high external validity and experimental control for studying romantic interest in real-world settings. While previous studies focused on the effect of social and personality factors on romantic interest, the role of non-verbal interaction has been little studied in initial romantic interest, despite being commonly viewed as a crucial factor. The present study investigated whether romantic interest can be predicted by non-verbal dyadic interactive body sway, and enhanced by movement-promoting (‘groovy’) background music. Participants’ body sway trajectories were recorded during speed dating. Directional (predictive) body sway coupling, but not body sway similarity, predicted interest in a long-term relationship above and beyond rated physical attractiveness. In addition, presence of groovy background music promoted interest in meeting a dating partner again. Overall, we demonstrate that romantic interest is reflected by non-verbal body sway in dyads in a real-world dating setting. This novel approach could potentially be applied to investigate non-verbal aspects of social bonding in other dynamic interpersonal interactions such as between infants and parents and in non-verbal populations including those with communication disorders.

The bystander effect in rats.

To investigate whether the classic bystander effect is unique to humans, the effect of bystanders on rat helping was studied. In the presence of rats rendered incompetent to help through pharmacological treatment, rats were less likely to help due to a reduction in reinforcement rather than to a lack of initial interest. Only incompetent helpers of a strain familiar to the helper rat exerted a detrimental effect on helping; rats helped at near control levels in the presence of incompetent helpers from an unfamiliar strain. Duos and trios of potential helper rats helped at superadditive rates, demonstrating that rats act nonindependently with helping facilitated by the presence of competent-to-help bystanders. Furthermore, helping was facilitated in rats that had previously observed other rats' helping and were then tested individually. In sum, the influence of bystanders on helping behavior in rats features characteristics that closely resemble those observed in humans.

Yes, and … : continuing the scholarly conversation about undue donor influence on higher education

I (Dannels), in my role as Associate Dean of Academic Affairs, have participated in meetings with potential donors when donors have expressed interest in initiatives related to student success. 1 I...

The role of novelty and fat and sugar concentration in food selection by captive tufted capuchins (Sapajus apella).

Capuchins, like other primates, use feedback from sensory cues and digestion to make decisions about which foods to consume and which to avoid. However, little is known about how capuchins make consumption decisions when simultaneously presented with novel and familiar foods, or how food familiarity and macronutrient concentration together influence food choice, topics with potential implications for developmental and health research. In this study, we evaluated the role of familiarity, as well as fat and sugar concentration, in the food selections of captive tufted capuchins (Sapajus apella). In the first experiment, over 10 sessions, subjects were assigned to either a group that chose between one familiar and one novel food item both high in fat or sugar (high condition), or to a group that chose between one familiar and one novel food item both low in fat or sugar (low condition). In the second experiment, subjects were divided into three groups, familiarized with food over five feeding sessions, and then offered the familiarized food and a novel food that varied in fat or sugar for 10 sessions. When offered foods high in fat, capuchins showed no clear signs of neophobia, forming an initial preference for the novel food, rejecting foods less frequently, and selecting foods faster than when offered foods low in fat. These trends were generally not observed in response to foods with sugar. When presented with options that varied in macronutrient concentration, subjects showed an initial interest in the novel food irrespective of whether it was high in fat or sugar, yet formed a final preference for the higher-concentration item. Findings suggest that the concentration of fat or sugar in novel foods may be an important mediator of exploratory behavior and that capuchins rely on immediate feedback from taste and other sensory cues to make consumption decisions.

Social STEAM Learning at an Early Age with Robotic Platforms: A Case Study in Four Schools in Spain.

Robotics is one of the key learnings in a world where learners will interact with multiple robotic technologies and operating systems throughout their lives. However, school teachers, especially in the elementary and primary education stages, often have difficulties incorporating these tools in the classroom. Four elementary teachers in three schools in Catalonia were trained to introduce robotics in the classroom to seventy-five students. The main actions consisted in classroom accompaniment by a university-trained support teacher, curricular materials’ development, and assessment of the students’ and teachers’ learning. The designed contents and evaluation criteria took into account the potential of educational robotics to improve soft skills and to promote Science, Technology, Engineering, Arts, and Mathematics (STEAM) interdisciplinary learning. Teachers perceived the training to be supportive and useful and ended the school year feeling confident with the used robotic platform (KIBO). The assessment of the students’ learning showed an average mark of 7.1–7.7 over 10 in the final evaluation criteria. Moreover, students’ learning was higher in the classes where the teachers had higher initial interest in the training. We present and analyse the actions carried out, with a critical and constructive look at extending the experience to other educational centers.

The Human Resources Sustainability Debate: Exploring the Role of Operations Management as a Critical Function in an Organisation

Purpose: The reason of this research endeavour is to address the requirement for the strengthening of Operation Director on how to stand up to the encounter of adjusting the interface and desires of the business with those of the locational associates to attain and keep up production and economical advantage. Methodology: The methodology is a qualitative in nature utilizing hypothetical and theoretical strategies that consolidate a reference list audit to attain the anticipated destinations. Results: The findings from this study is about incorporating the reality that sustainable improvement ought to be taken care of based on productivity with assets, and carefully arranged to provide both prompt and long-term benefits for individuals, planet, and prosperity. Research limitations/implications: A major impediment of utilizing secondary information is that the new user does not know and cannot determine the initial interest taken by the original source that gave guidance to the information collection process and the preparation as well. Generally, it is difficult to know precisely how it was conducted and if the data were affected by difficulties such as low response rate or respondent misunderstanding of specific survey questions. Practical implications: The Operation Directors are those able of creating plans, advancement, and to provide products/services to the markets which are of a lesser amount of ecological disaster. For persistent industry sustainability, an organization need to recognize an individual, his esteem, advance his competence and this should apply to every member of the team. Originality/value: This study contributes to the drive towards exploring the nature of sustainability itself and the critical need for operations management in sustainability management.

Thematic analysis of 18 years of physics education research conference proceedings using natural language processing

We have used an unsupervised machine learning method called Latent Dirichlet Allocation (LDA) to thematically analyze all papers published in the Physics Education Research Conference Proceedings between 2001 and 2018. By looking at co-occurrences of words across the data corpus, this technique has allowed us to identify ten distinct themes or "topics" that have seen varying levels of prevalence in Physics Education Research (PER) over time and to rate the distribution of these topics within each paper. Our analysis suggests that although all identified topics have seen sustained interest over time, PER has also seen several waves of increased interest in certain topics, beginning with initial interest in qualitative, theory-building studies of student understanding, which has given way to a focus on problem solving in the late 2010s. Since 2010 the field has seen a shift towards more sociocultural views of teaching and learning with a particular focus on communities of practice, student identities, and institutional change. Based on these results, we suggest that unsupervised text analysis techniques like LDA may hold promise for providing quantitative, independent, and replicable analyses of educational research literature.