TUScholarShare: Recent submissions
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Bronchoscopy in Hematopoietic Stem Cell Transplant Patients Systematic Review Search StrategyTo identify studies to include or consider for this systematic review, the review team worked with a librarian (TN) to develop detailed search strategies for each database. The PRISMA-S extension was followed for search reporting. The librarian (TN) developed the search for PubMed (NLM) and translated the search for every database searched. The PubMed (NLM) search strategy was reviewed by the research team to check for accuracy and term relevancy. All final searches were peer-reviewed by another librarian (SB) following the Peer Review of Electronic Search Strategies (PRESS checklist). The search was limited by date from 1994 to Present.
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Building In Her Own Right: White Paper for National Endowment for the Humanities Division of Preservation and Access, Humanities Collections and Reference Resources (Grant #PW-264121-19)The Philadelphia Area Consortium of Special Collections Libraries (PACSCL) received a National Endowment for the Humanities (NEH) Humanities Collections and Reference Resources (HCRR) Implementation grant to digitize thirty linear feet of materials from thirty-one collections in twelve of its member institutions and two additional repositories documenting the history of women’s civil rights and expose that and additional content on the web. The two-year grant, beginning in May 2019, was designed to ensure that a significant portion of the material would be online in the months surrounding the 100th anniversary of the ratification of the Nineteenth amendment: August 18, 2020. Additionally, collection-level records for any material not digitized by that time served as signposts for researchers seeking more timely access. That project built on the successes of a one-year NEH Foundations grant (July 2016-June 2017), designed to identify and disseminate information about collections in Philadelphia-area archives documenting women working for their own and other’s rights, 1820-1920. The content, provided on a pilot website (http://inherownright.org/), served as a resource for students and teachers as the nation began to look to the 100th anniversary of woman suffrage in 2020. PACSCL requested additional NEH funding to digitize more content from its member institutions and other institutions as well as to support outreach to find, digitize, and describe additional collections, particularly those documenting underrepresented populations. In Her Own Right also expanded its user audiences from high school students and undergraduates to include graduate students and scholars, by enhancing the website to include additional tools and resources supporting research use. This enabled the team to realize more fully an original core concept of the project: to provide both “retail” access (mediated content with contextualizing supporting materials) and “wholesale” access (unmediated raw material—both digitized content and metadata–for a range of future research and digital scholarship projects). The core of project work was digitizing and describing manuscript and some printed materials, held in area institutions, irrespective of the geographic focus of the collection itself. The digitized material is served up through a robust web presence that provides access to well-described digital items; the capacity to download and manipulate the descriptive data to generate new scholarly products; and other resources that will serve students and scholars studying not only women’s work leading up to the 1920 vote for woman suffrage, but countless other topics as well. The long narrative of women making incremental progress toward equality and opportunity continues to be relevant. To extend project work to document the conversations across race and class that the team began to reflect on during the Foundations grant, the Implementation proposal also budgeted time and staff to find, digitize, and describe additional collections documenting underrepresented populations. Initial research identified a number of potentially rich collections for inclusion that illuminated a broad range of activism among many groups of women. These included some groups that are underrepresented in the traditional historical narrative of women’s campaign for voting and other civil rights, but the project team also hoped to find even more collections relating to these underrepresented populations and recognized that doing so would require significant outreach beyond PACSCL members. Using PACSCL’s tested methodology from two Council on Library and Information Resources (CLIR) Hidden Collections grants1 and PACSCL institution staff members trained in its process, the project team worked with small repositories in the area that lacked access tools or staff to identify “hidden voices.” This white paper, while highlighting the NEH Implementation phase of the project, also looks across 2016 to 2021, and outlines successes, challenges, learnings, and opportunities for continued project growth.
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PFAS in the Schuylkill RiverThe project aimed to conduct both targeted analyses of per- and polyfluoroalkyl substances (PFAS) in the Schuylkill River. 16 sampling sites were employed to collect data on the occurrence of PFAS along a 50 mile stretch of the river in February, May, and July of 2024. The analysis focused on 40 specific PFAS compounds. All procedures were performed following the US EPA Method 1633, which utilized solid-phase extraction and LC/MC analysis. The data collected in this report indicate the presence of a variety of PFAS compounds at quantifiable levels, with PFBA, 6:2 FTS, PFOA, and PFOS being the most abundant, as found in nearly 100% of the sampling locations. Factors such as population density, proximity to industrial sites, and other pollution sources influence the distribution pattern of these compounds. The factors mentioned above are likely the reason for the increase in the concentrations of targeted PFAS and the number of compounds detected as we move from Pottstown toward the center of Philadelphia. Based on the Environmental Protection Agency (EPA) regulations for PFOA and PFOS health advisory levels, more than 60% of the samples exhibited a medium-risk profile. However, under the 2024 maximum contamination levels proposed by the EPA, an average of 70% of the samples across all locations showed a high-risk profile, with the remaining samples falling into the medium-risk category. While the ability to fully interpret the risks associated with PFAS in river water is limited, a rough estimation of the risk can be made using current drinking water regulations. This assessment is particularly crucial, as the Schuylkill River is a source of drinking water and is utilized by several wastewater and water treatment plants.
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A Review of Antisynthetase Syndrome-Associated Interstitial Lung DiseaseOur objective in this review article is to present a clinical case of a patient with antisynthetase syndrome (ASyS) and provide an overview of the pathogenesis, classification criteria, antibody profiles, clinical features, and current knowledge of treatment options, focusing on interstitial lung disease (ILD). ASyS is an uncommon autoimmune disease with a heterogenous clinical presentation characterized by the presence of autoantibodies against an aminoacyl-tRNA synthetase and manifested by myositis, fever, inflammatory arthritis, Raynaud’s phenomenon, mechanics hands, and ILD. ASyS-associated ILD (ASyS-ILD) is the most serious complication of ASyS, which may evolve to rapidly progressive ILD; therefore, it often requires thorough clinical and radiologic evaluation including recognition of a specific clinical phenotype associated with the antisynthetase antibodies (ASAbs) to guide therapeutic interventions.
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Dispersal restriction and facilitation in species with differing tolerance to development: A landscape genetics study of native and introduced lizardsAim: The development of natural habitats into urban land uses has greatly accelerated in the recent past due to human activities. This habitat development disrupts species' natural dispersal processes and can lead to both direct and indirect impacts on dispersal. Whether human activities result in restricted or facilitated dispersal may depend on a species' development tolerance; however, this premise has not been tested. We examined the impact of urbanization and road networks on the dispersal of three lizard species in the context of their development tolerance. Location: Curaçao. Methods: To quantify species' development tolerance, we modelled three lizard species abundances at sites based on surrounding landscape development. Using microsatellite genotypes, we conducted individual-based resistance surface analyses and modelled the effect of habitat development on genetic admixture to assess indirect dispersal restriction and facilitation. We explored direct facilitation of dispersal using network analysis of mitochondrial haplotypes. Results: Phyllodactylus martini, a native gecko species, was the least tolerant of development and experienced indirect dispersal restriction due to roads, according to resistance surface analyses. Anolis lineatus, a native anole species, exhibited a neutral relationship with development. Resistance surfaces and Structure analyses showed that A. lineatus faced indirect dispersal restrictions from roads and developed areas, while mitochondrial haplotype networks suggested they benefited from occasional human-facilitated long-distance dispersal events. Hemidactylus mabouia, an introduced gecko species, was the most tolerant of development, and experienced no dispersal restriction, but mitochondrial haplotypes suggest direct long-distance dispersal facilitation. Main Conclusions: Our findings highlight development tolerance as a key predictor of dispersal impact for these species and future work should test whether these patterns are upheld in other systems. Understanding how human activities affect species' dispersal will aid in managing introduced species while promoting connectivity for native species navigating dispersal challenges in dynamic landscapes.
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When species don’t move together: Non-concurrent range shifts in Eastern Pacific kelp forest communitiesSpecies range shifts due to changing ocean conditions are occurring around the world. As species move, they build new interaction networks as they shift from or into new ecological communities. Typically, species ranges are modeled individually, but biotic interactions have been shown to be important to creating more realistic modeling outputs for species. To understand the importance of consumer interactions in Eastern Pacific kelp forest species distributions, we used a Maxent framework to model a key foundation species, giant kelp (Macrocystis pyrifera), and a dominant herbivore, purple sea urchins (Strongylocentrotus purpuratus). With neither species having previously been modeled in the Eastern Pacific, we found evidence for M. pyrifera expansion in the northern section of its range, with no projected contraction at the southern range edge. Despite its known co-occurrence with M. pyrifera, models of S. purpuratus showed a non-concurrent southern range contraction and a co-occurring northern range expansion. While the co-occurring shifts may lead to increased spatial competition for suitable substrate, this non-concurrent contraction could result in community wide impacts such as herbivore release, tropicalization, or ecosystem restructuring.
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Case of pediatric cerebellar, hippocampal, and basal nuclei transient edema with restricted diffusion (CHANTER) syndrome in a 2-year-old girlCerebellar, hippocampal, and basal nuclei transient edema with restricted diffusion (CHANTER) syndrome is a recently described entity that refers to a specific pattern of cerebellar edema with restricted diffusion and crowding of the fourth ventricle among other findings. The syndrome is commonly associated with toxic opioid exposure. While most commonly seen in adults, we present a case of a 2-year-old girl who survived characteristic history and imaging findings of CHANTER syndrome.
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Understanding the mediation effects of cigarettes per day on time to first cigarette and carcinogen biomarkers: National Health and Nutrition Examination Survey 2015–2016Introduction: Previous research indicates that cigarette smokers with a time to first cigarette (TTFC) of less than 30 minutes after waking up had significantly higher levels of carcinogen biomarkers compared to those with a TTFC of more than 30 minutes. The mediation (potential mediator: cigarettes smoked per day) between TTFC and carcinogen biomarkers, remains unclear and has yet to be established. Methods: Multivariable linear regression models were used to estimate adjusted geometric means (GMs) and ratios of GMs for urine biomarkers of VOCs by smokers’ TTFC status (≤30 vs >30 min). Further, data from the NHANES 2015–2016 special sample were analyzed to assess the mediation between TTFC (exposure) and carcinogen biomarkers, including urine metabolites of polycyclic aromatic hydrocarbons (PAHs), volatile organic compounds (VOCs), and cadmium. Results: Cigarette smokers with a short TTFC (≤30 min) presented significantly higher concentrations in 8 out of 17 urine metabolites of VOCs examined compared to smokers with TTFC >30 min. The association between exposure and carcinogen biomarkers was not mediated by CPD. Conclusions: Cigarette smokers with a short TTFC (≤30 min) had significantly higher levels in VOCs, PAHs, and cadmium, but the association was not mediated by cigarettes smoked per day.
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Differences in Intraoperative Fluoroscopic Radiation Exposure During Ankle Fracture Open Reduction and Internal Fixation Between Orthopaedic Surgery and PodiatrySurgical ankle fractures pose a unique situation because both podiatrists and orthopaedic surgeons manage these injuries. Intraoperative fluoroscopy is routinely used; however, excessive radiation can be harmful to both the patient and the surgical team. The primary goal of this study was to determine whether there is a difference in the amount of intraoperative radiation exposure during ankle fracture open reduction and internal fixation (ORIF) when performed by orthopaedic surgeons versus podiatrists. This is a retrospective review of patients who underwent ankle fracture ORIF at an urban level I trauma center between January 1st, 2018, and April 1st, 2023. The electronic health record was queried using International Classification of Diseases nine and 10 codes associated with ankle fractures. Patients aged older than 18 years with an ankle fracture managed surgically were included. Subjects were then stratified by procedure. The mean total radiation dose (mRad) and mean total fluoroscopic time (seconds) were then compared between those performed by orthopaedic surgeons and podiatrists. Of the 333 included procedures, 186 were done by orthopaedic surgeons and 147 were done by podiatrists. Using multiple linear regression analysis to control for age, sex, race, ethnicity, and body mass index, patients undergoing isolated malleolus ORIF with syndesmosis repair performed by orthopaedic surgery were found to have a significantly lower mean fluoroscopic time compared with those performed by podiatry (68.4 s versus 104.8 s; P = 0.028). In addition, trimalleolar ORIF with syndesmotic repair performed by orthopaedic surgery had a significantly lower mean total radiation dose compared with those performed by podiatry (244.6 mRad v 565.6 mRad; P = 0.009). Patients and surgical teams are exposed to markedly less radiation in isolated malleolar and trimalleolar fracture ORIF with syndesmosis repair when performed by an orthopaedic surgeon as compared with those performed by a podiatrist.
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A Comparison of Topic Modeling Approaches Using Networked Discussion Forum Posts From the City-data.com CorpusThe City-Data.com Corpus provides over 15,000 discussion forum posts scraped from city-data.com--a website that hosts information about cities across the United States. Like the 20 Newsgroups dataset, the City-Data.com Corpus is weakly labeled by forum topics and thread titles and can be used to trial natural language processing techniques or be used to stage lessons in digital textual analysis in digital humanities pedagogy.
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Impact of reperfusion therapies on clot resolution and long-term outcomes in patients with pulmonary embolismObjective: Major progress in reperfusion strategies has substantially improved the short-term outcomes of patients with pulmonary embolism (PE), however, up to 50% of patients report persistent dyspnea after acute PE. Methods: A retrospective study of the PE response team registry and included patients with repeat imaging at 3 to 12 months. The primary outcome was to determine the incidence of residual pulmonary vascular obstruction following acute PE. Secondary outcomes included the development of PE recurrence, right ventricular (RV) dysfunction, chronic thromboembolic pulmonary hypertension, readmission, and mortality at 12 months. Results: A total of 382 patients were included, and 107 patients received reperfusion therapies followed by anticoagulation. Patients who received reperfusion therapies including systemic thrombolysis, catheter-directed thrombolysis, and mechanical thrombectomy presented with a higher vascular obstructive index (47% vs 28%; P < .001) and signs of right heart strain on echocardiogram (81% vs 43%; P < .001) at the time of diagnosis. A higher absolute reduction in vascular obstructive index (45% vs 26%; 95% confidence interval, 14.0-25.6; P < .001), greater improvement in RV function (82% vs 65%; P = .021), and lower 12-month mortality rate (2% vs 7%; P = .038) and readmission rate (33% vs 46%; P = .031) were observed in the reperfusion group. No statistically significant differences were found between groups in the development of chronic thromboembolic pulmonary hypertension (8% vs 5%; P = .488) and PE recurrence (8% vs 6%; P = .646). Conclusions: We observed a favorable survival and greater improvement in clot resolution and RV function in patients treated with reperfusion therapies.
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Corticostriatal responses to social reward are linked to trait reward sensitivity and subclinical substance use in young adultsAberrant levels of reward sensitivity have been linked to substance use disorder and are characterized by alterations in reward processing in the ventral striatum (VS). Less is known about how reward sensitivity and subclinical substance use relate to striatal function during social rewards (e.g. positive peer feedback). Testing this relation is critical for predicting risk for development of substance use disorder. In this pre-registered study, participants (N = 44) underwent fMRI while completing well-matched tasks that assess neural response to reward in social and monetary domains. Contrary to our hypotheses, aberrant reward sensitivity blunted the relationship between substance use and striatal activation during receipt of rewards, regardless of domain. Moreover, exploratory whole-brain analyses showed unique relations between substance use and social rewards in temporoparietal junction. Psychophysiological interactions demonstrated that aberrant reward sensitivity is associated with increased connectivity between the VS and ventromedial prefrontal cortex during social rewards. Finally, we found that substance use was associated with decreased connectivity between the VS and dorsomedial prefrontal cortex for social rewards, independent of reward sensitivity. These findings demonstrate nuanced relations between reward sensitivity and substance use, even among those without substance use disorder, and suggest altered reward-related engagement of cortico-VS responses as potential predictors of developing disordered behavior.
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The effect of donor–recipient sex matches on lung transplant survival: An analysis of the United Network for Organ Sharing databaseObjective: To investigate the impact of donor–recipient (DR) sex matches on survival after lung transplantation while controlling for size difference in the United Network of Organ Sharing (UNOS) database. Methods: We performed a retrospective study of 27,423 lung transplant recipients who were reported in the UNOS database (January 2005-March 2020). Patients were divided into groups based on their respective DR sex match: male to male (MM), male to female (MF), female to female, (FF), and female to male (FM). Kaplan–Meier curve and Cox regression with log-rank tests were used to assess 1-, 3-, 5-, and 10-year survival. We also modeled survival for each group after controlling for size-related variables via the Cox regression. Results: Kaplan–Meier curves showed overall significance at 1-, 3-, 5-, and 10-year end points (P < .0001). Estimated median survival time based on Kaplan–Meier analysis were 6.41 ± 0.15, 6.13 ± 0.18, 5.86 ± 0.10, and 5.37 ± 0.17 years for FF, MF, MM, and FM, respectively (P < .0001). After we controlled for size differences, FF had statistically significantly longer 5- and 10-year survival than all other cohorts. MF also had statistically significantly longer 5- and 10-year survival than FM. Conclusions: When variables associated with size were controlled for, FF had improved survival than other DR groups. A female recipient may experience longer survival with a female donor’s lungs versus a male donor’s lungs of similar size.
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Direction-of-arrival estimation via coarray-domain RELAX algorithm with source number estimationA modified RELAX algorithm based on iterative coarray-domain beamforming for fast source direction-of-arrival (DOA) estimation with fully augmentable sparse arrays is proposed. The authors exploit the deterministic centralised nature of the noise in the coarray domain and the Hermitian symmetry of the spatial autocorrelation function to efficiently incorporate source number estimation within the iterative framework. In doing so, the proposed algorithm allows low-complexity, fast DOA estimation of more sources than sensors, without resorting to computationally expensive implementations of source number estimation using information theoretic criteria. Three variants of the proposed algorithm are presented, each differing in terms of the specific method employed for source number estimation. Extensive simulations are performed with a minimum redundancy array to compare and contrast the performance of the three variants in terms of their accuracy in estimating the number of sources in the field-of-view of the array. The results demonstrate that the modified RELAX algorithm can provide accurate estimates of the number and directions of sources, especially when the number of uncorrelated sources is equal to or higher than the number of sensors.
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A Social Network Analysis of Hemodialysis Clinics: Attitudes Toward Living Donor Kidney Transplant among Influential PatientsKey Points: Hemodialysis clinic social networks spread attitudes and behaviors toward kidney transplants. Identifying and characterizing influential patients is a first step in future hemodialysis clinic social network interventions to promote kidney transplantation. Background: Hemodialysis clinics help develop patient social networks that may spread kidney transplant (KT) attitudes and behaviors. Identifying influential social network members is an important first step to increase KT rates. We mapped the social networks of two hemodialysis facilities to identify which patients were influential using in-degree centrality as a proxy for popularity and influence. Methods: In this cross-sectional study, we performed a sociocentric social network analysis of patients on hemodialysis in two geographically and demographically different hemodialysis facilities. Statistical and social network analyses were performed using R statistical software. Results: More patients at facility 1 (N=71) were waitlisted/evaluating living donor KT (50.7% versus 20.0%, P = 0.021), considered KT as very important (70.4% versus 45.0%, P = 0.019), and knew people who received a successful KT (1.0 versus 0.0, P = 0.003). Variables predicting relationship formation at facility 1 were the same shift (β=1.87, 95% confidence interval [CI] [1.19 to 2.55]; P < 0.0001), same sex (β=0.51, 95% CI [0.01 to 1.00]; P = 0.045), younger age (β=−0.03, 95% CI [−0.05 to −0.01]; P = 0.004), different lengths of time on hemodialysis (β=−0.49, 95% CI [−0.86 to −0.12]; P = 0.009), and knowing more people who received a successful KT (β=0.12, 95% CI [0.03 to 0.21]; P = 0.009). Predictive variables at facility 2 (N=40) were the same race (β=2.52, 95% CI [0.39 to 4.65]; P = 0.021) and knowing fewer people with successful KT (β=−0.92, 95% CI [−1.82 to −0.02]; P = 0.045). In-degree centrality was higher at facility 1 (1.1±1.2) compared with facility 2 (0.6±0.9). Conclusions: Social networks differed between the hemodialysis clinics in structure and prevalent transplant attitudes. Influential patients at facility 1 (measured by in-degree centrality) had positive attitudes toward KT, whereas influential patients at facility 2 had negative attitudes.
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An fMRI dataset of social and nonsocial reward processing in young adultsTrait reward sensitivity, risk for developing substance use, and mood disorders have each been linked with altered striatal responses to reward. Moreover, striatal response to reward is sensitive to social context, such as the presence of a peer, and drugs are often sought out and consumed in social contexts or as a result of social experiences. Thus, mood disorder symptoms, striatal responses to social context and social reward may play a role in substance use. To investigate this possibility, this dataset was collected as part of a National Institute on Drug Abuse (NIDA) grant titled “Aberrant Reward Sensitivity: Mechanisms Underlying Substance Use” (R03-DA046733). The overarching goal was to characterize the associations between neural responses to social and nonsocial rewards, trait reward sensitivity, substance use, and mood disorder symptoms. After obtaining questionnaire data quantifying reward sensitivity, substance use, and other psychosocial characteristics, young adults (N=59; 14 male, 45 female; mean age: 20.89 years ± 1.75 years) completed four fMRI tasks testing different features of social and reward processing. These included: 1) a strategic reward-based decision-making task with Ultimatum and Dictator Game conditions; 2) a task where participants shared rewards or losses with peers, strangers, or non-human partners; 3) a task in which participants received well-matched social and monetary rewards and punishment; and 4) a monetary incentive delay (MID) task in which participants tried to obtain or avoid rewards and losses of different magnitude. This dataset includes sociodemographic questionnaire data, anatomical, task-based fMRI, and corresponding behavioral task-based data. We outline several opportunities for extension and reuse, including exploration of individual differences, cross-task comparisons, and representational similarity analyses.
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An fMRI Dataset on Social Reward Processing and Decision Making in Younger and Older AdultsBehavioural and neuroimaging research has shown that older adults are less sensitive to financial losses compared to younger adults. Yet relatively less is known about age-related differences in social decisions and social reward processing. As part of a pilot study, we collected behavioural and functional magnetic resonance imaging (fMRI) data from 50 participants (Younger: N = 26, ages 18–34 years; Older: N = 24, ages 63–80 years) who completed three tasks in the scanner: an economic trust game as the investor with three partners (computer, stranger, friend) as the investee; a card-guessing task with monetary gains and losses shared with three partners (computer, stranger, friend); and an ultimatum game as responder to three anonymous proposers (computer, age-similar adults, age-dissimilar adults). We also collected B0 field maps and high-resolution structural images (T1-weighted and T2-weighted images). These data could be reused to answer questions about moment-to-moment variability in fMRI signal, representational similarity between tasks, and brain structure.