bluuebunny/crossref_metadata_2025_split huggingface dataset:
The impact of COVID-19 on emergency surgical presentations in a university teaching hospital
Authors: Kamil Ahmed M. , Davey Matthew G. , Marzouk Fadi , Sehgal Rish , Fowler Amy L. , Corless Kevin , O’Neill Maeve , Collins Chris G. 
Published: July 2021

Abstract
Introduction
The Coronavirus-19 (COVID-19) pandemic has led to a 50–70% reduction in acute non-COVID-19 presentations to emergency departments globally.

Aim
To determine the impact of COVID-19 on incidence, severity, and outcomes of acute surgical admissions in an Irish University teaching hospital.

Methods
Descriptive data concerning patients presenting with acute appendicitis, diverticulitis, and cholecystitis were analysed and compared from March–May 2020 to March–May 2019.

Results
Acute surgical admissions decreased in March from 191 (2020) to 55 (2019) (55%), before increasing by 28% in April (2019: 119, 2020: 153). Admissions due to acute cholecystitis reduced by 33% (2019: 33, 2020: 22), with increased severity at presentation (P = 0.079) and higher 30-day readmission rates (P = 0.056) reported. Acute appendicitis presentations decreased by 44% (2019: 78, 2020: 43, P = 0.019), with an increase in severity (P < 0.001), conservative management (P < 0.001), and post-operative complications (P = 0.029) in 2020 compared to the same period in 2019.

Conclusion
COVID-19 has potentiated a significant reduction in acute surgical presentations to our hospital. Patients presenting with acute appendicitis during the pandemic had more severe disease, were more likely to have complications, and were significantly more likely to be managed conservatively when compared to historical data.
Development of High-Energy-Density Liquid Aerospace Fuel: A Perspective
Authors: Nie Jiaorong , Jia Tinghao , Pan Lun , Zhang Xiangwen , Zou Ji-Jun 
Published: July 2021

AbstractAerospace aircraft has significantly improved the life quality of human beings and extended the capability of space explosion since its appearance in 1903, in which liquid propellants or fuels provide the key power source. For jet fuels, its property of energy density plays an important role in determining the flight range, load, and performance of the aircraft. Therefore, the design and fabrication of high-energy-density (HED) fuels attract more and more attention from researchers all over the world. Herein, we briefly introduce the development of liquid jet fuels and HED fuels and demonstrate the future development of HED fuels. To further improve the energy density of fuel, the approaches of design and construction of multi-cyclic and stained molecule structures are proposed. To break through the density limit of hydrocarbon fuels, the addition of energetic nanoparticles in HED fuels to produce nanofluid or gelled fuels may provide a facile and effective method to significantly increase the energy density. This work provides the perspective for the development of HED fuels for advanced aircrafts.
Data-Related Ethics Issues in Technologies for Informal Professional Learning
Authors: Pammer-Schindler Viktoria , Rosé Carolyn 
Published: July 2021

AbstractProfessional and lifelong learning are a necessity for workers. This is true both for re-skilling from disappearing jobs, as well as for staying current within a professional domain. AI-enabled scaffolding and just-in-time and situated learning in the workplace offer a new frontier for future impact of AIED. The hallmark of this community’s work has been i) data-driven design of learning technology and ii) machine-learning enabled personalized interventions. In both cases, data are the foundation of AIED research and data-related ethics are thus central to AIED research. In this paper we formulate a vision how AIED research could address data-related ethics issues in informal and situated professional learning. The foundation of our vision is a secondary analysis of five research cases that offer insights related to data-driven adaptive technologies for informal professional learning. We describe the encountered data-related ethics issues. In our interpretation, we have developed three themes: Firstly, in informal and situated professional learning, relevant data about professional learning – to be used as a basis for learning analytics and reflection or as a basis for adaptive systems - is not only about learners. Instead, due to the situatedness of learning, relevant data is also about others (colleagues, customers, clients) and other objects from the learner’s context. Such data may be private, proprietary, or both. Secondly, manual tracking comes with high learner control over data. Thirdly, learning is not necessarily a shared goal in informal professional learning settings. From an ethics perspective, this is particularly problematic as much data that would be relevant for use within learning technologies hasn’t been collected for the purposes of learning. These three themes translate into challenges for AIED research that need to be addressed in order to successfully investigate and develop AIED technology for informal and situated professional learning. As an outlook of this paper, we connect these challenges to ongoing research directions within AIED – natural language processing, socio-technical design, and scenario-based data collection - that might be leveraged and aimed towards addressing data-related ethics challenges.
Cycles and circulation: a theme in the history of biology and medicine
Authors: Hopwood Nick , Müller-Wille Staffan , Browne Janet , Groeben Christiane , Kuriyama Shigehisa , van der Lugt Maaike , Giglioni Guido , Nyhart Lynn K. , Rheinberger Hans-Jörg , Dröscher Ariane , Anderson Warwick , Anker Peder , Grote Mathias , van de Wiel Lucy ,   the Fifteenth Ischia Summer School on the History of the Life Sciences
Published: July 2021

AbstractWe invite systematic consideration of the metaphors of cycles and circulation as a long-term theme in the history of the life and environmental sciences and medicine. Ubiquitous in ancient religious and philosophical traditions, especially in representing the seasons and the motions of celestial bodies, circles once symbolized perfection. Over the centuries cyclic images in western medicine, natural philosophy, natural history and eventually biology gained independence from cosmology and theology and came to depend less on strictly circular forms. As potent ‘canonical icons’, cycles also interacted with representations of linear and irreversible change, including arrows, arcs, scales, series and trees, as in theories of the Earth and of evolution. In modern times life cycles and reproductive cycles have often been held to characterize life, in some cases especially female life, while human efforts selectively to foster and disrupt these cycles have harnessed their productivity in medicine and agriculture. But strong cyclic metaphors have continued to link physiology and climatology, medicine and economics, and biology and manufacturing, notably through the relations between land, food and population. From the grand nineteenth-century transformations of matter to systems ecology, the circulation of molecules through organic and inorganic compartments has posed the problem of maintaining identity in the face of flux and highlights the seductive ability of cyclic schemes to imply closure where no original state was in fact restored. More concerted attention to cycles and circulation will enrich analyses of the power of metaphors to naturalize understandings of life and their shaping by practical interests and political imaginations.
Can Guided Notes Support Students’ Note-taking in Mathematics Lectures?
Authors: Feudel Frank , Panse Anja 
Published: July 2021

AbstractIn traditional mathematics lectures the instructor normally writes the definitions, theorems, and proofs covered on the board, and gives informal oral explanations that help to make sense of them. The students have to take notes. However, there are serious problems concerning students’ note-taking in traditional mathematics lectures. Students often cannot think about the information presented during the lecture as they are busy writing. Making sense of the content later is also difficult because many students do not include the lecturer’s oral explanations in their notes. One approach to addressing these problems can be the use of guided notes: a modified version of the instructor’s notes with certain blanks the students have to fill in during the lecture. We investigated to what extent guided notes can support students in their note-taking in mathematics lectures in a study using a mixed-method design. This study provides on the one hand quantitative data suggesting that guided notes are perceived as beneficial by many students for several aspects of their note-taking. On the other hand, it offers qualitative data illustrating how the use of guided notes can influence these aspects. The results indicate in particular that the use of guided notes can address some of the problems concerning students’ note-taking in traditional mathematics lectures, while it can also lead to new problems that one needs to be aware of.
Distribution modelling of the garden dormouse Eliomys quercinus (Linnaeus, 1766) with novel climate change indicators
Authors: Bennett David , Richard Freddie Jeanne 
Published: July 2021

AbstractThe garden dormouse Eliomys quercinus has been declining in both abundance and range since the mid-twentieth century. The eastern edge of its range has contracted from the Ural Mountains to eastern Germany. Habitat loss and fragmentation has been the most supported theory to explain the observed decline. Climate change has been implicated in declines of other terrestrial mammals, but not investigated for E. quercinus. To better understand the factors influencing the distribution of this species and to map habitat suitability for E. quercinus across Europe, we created a Maxent species distribution model. Among the main environmental variables used for the modelling, two novel climate change indicator variables were produced to indicate the degree of climate change between the early twentieth century and the present. Areas of high suitability were mapped, and variable importance estimated using jackknife tests and variable contribution metrics. The climate change indicators outperformed many conventional variables, which could indicate that climate change is a factor behind the current distribution of E. quercinus. We also analysed the land use types where presence points of E. quercinus were located and whether they were in areas of “high nature value farmland”. Over 30% of all spatially filtered presence points corresponded to high nature value farmland areas. Our results could indicate a role for changing climate (particularly in temperature) in the range decline E. quercinus, and for high nature value farmland practices in conserving this species. Field studies and improved monitoring for this species are recommended to confirm both possible findings.
Overcoming challenges to removing inappropriate penicillin allergy labels: A quality improvement report
Authors: Fuller Risa N. , Baker Mary Grace , Desai Mauli B. , Saunders-Hao Patricia L. , Agarwal Shradha , Patel Gopi , Agrawal Saloni , Schaefer Sarah H. 
Published: July 2021

Abstract
Over 3 months, we provided monthly education to internal medicine residents and distributed resources regarding penicillin-allergy history taking. Allergy information in the electronic record was updated more often during the intervention compared to the period before the intervention (16.1% vs 10.9%; P = .02). Education and interdepartmental collaboration have the potential to affect provider behavior.
Coronavirus disease 2019 (COVID-19) incidence after exposures in shared patient rooms in a tertiary-care center in Iowa, July 2020–May 2021
Authors: Trannel Alexandra M. , Kobayashi Takaaki , Dains Angelique , Abosi Oluchi J. , Jenn Kyle E. , Meacham Holly , Sheeler Lorinda L. , Etienne William , Kukla Mary E. , Alsuhaibani Mohammed , Holley Stephanie , Strandberg Kelsey , Marra Alexandre R. , Kritzman Jeffrey , Ford Bradley , Wellington Melanie , Diekema Daniel J. , Salinas Jorge L. 
Published: July 2021

AbstractThe incidence of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) exposure in shared patient rooms was low at our institution: 1.8 per 1,000 shared-room patient days. However, the secondary attack rate (21.6%) was comparable to that reported in household exposures. Lengthier exposures were associated with SARS-CoV-2 conversion. Hospitals should implement measures to decrease shared-room exposures.
Attempted suicide: does lethality matter?
Authors: Doherty A. M. , Moore S. , Corcoran N. , Malone K. M. 
Published: July 2021

Objectives:To investigate whether high-lethality suicide attempters align to the demographic and clinical features observed in completed suicide in the national and international literature, and whether low-lethality attempters more closely align with the clinical profile of non-attempter ideators.Methods:A retrospective chart review of adult suicide ideators and attempters presenting to an urban tertiary care hospital was performed. Suicide ideators (n = 50) and attempters (n = 50) were coded for variables including demographics and clinical characteristics (e.g. psychiatric diagnosis and previous suicide attempt). Method and lethality of suicide attempt were coded using the medical Lethality Rating Scale.Results:High-lethality attempters were more likely to be younger in age than low-lethality attempters (p = 0.026) and ideators (p = 0.041). The lethality scores of suicide attempts were significantly inversely correlated with age (p = 0.017).Conclusions:Our study adds to the small but increasing body of literature investigating the characteristics of high-lethality suicide attempters and suggests younger adult age is a risk factor for a high-lethality attempt. Further understanding of this unique group would be aided by widespread agreement on the definition of a high-lethality suicide attempt and longitudinal studies of this cohort.
Dietary and body-mass reconstruction of the Miocene neotropical batNotonycteris magdalenensis(Phyllostomidae) from La Venta, Colombia
Authors: López-Aguirre Camilo , Czaplewski Nicholas J. , Link Andrés , Takai Masanaru , Hand Suzanne J. 
Published: July 2021

AbstractWith 14 species recorded, the Miocene La Venta bat fauna is the most diverse bat paleocommunity in South America. It includes the oldest plant-visiting bat in the New World and some of the earliest representatives of the extant families Phyllostomidae, Thyropteridae, and Noctilionidae. La Venta'sNotonycteris magdalenensisis an extinct member of the subfamily Phyllostominae, a group of modern Neotropical animalivorous bats, and is commonly included in studies of the evolution of Neotropical bats, but aspects of its biology remain unclear. In this study, we used multivariate dental topography analysis (DTA) to reconstruct the diet ofN. magdalenensisby quantitatively comparing measures of molar complexity with those of 25 modern noctilionoid species representing all major dietary habits in bats. We found clear differences in molar complexity between dietary guilds, indicating that DTA is potentially an informative tool to study bat ecomorphology. Our results suggestN. magdalenensiswas probably an omnivore or insectivore, rather than a carnivore like its modern relativesChrotopterus auritusandVampyrum spectrum. Also, we reconstructed the body mass ofN. magdalenensisto be ~95 g, larger than most insectivorous bats, but smaller than the largest carnivorous bat (V. spectrum). Our results confirm thatN. magdalenensiswas not a specialized carnivore. It remains to be demonstrated that the specialized carnivory ecological niche was occupied by the same lineage of phyllostomines from at least the middle Miocene. Combining our diet and body-mass reconstructions, we suggest thatN. magdalenensisexhibits morphological pre-adaptations crucial for the evolution of specialized carnivory.
Dignity equals distance? Pursuing dignity in care for older adults
Authors: Hansen Agnete Meldgaard 
Published: July 2021

AbstractThis paper explores how dignity is articulated and pursued by care workers in two currently prominent policy initiatives seeking to reform Danish care services for older people. Based on ethnographic case studies of ‘reablement’ practices and the use of ‘welfare technologies’, the paper shows how these attempts to create dignified care services transform interactions between care recipients and care workers. The analysis is inspired by a socio-material perspective on dignity as ‘crafted’ and ‘co-laboured’ in daily practices, in an interplay between multiple human and non-human actors. In the cases studied, dignity is articulated as closely related to older people's increasing autonomy and independence of formal care, and is pursued through enhancing care recipients’ self-care ability, and through technological automation of care tasks. However, these articulations and pursuits of dignity do not stand alone. When everyday care practices are closely examined, dignity is also pursued by care workers as increased co-operation and equality between care workers and care recipients, as de-objectification, and as promotion of enjoyment and quality of life. In these practices, care is ambivalently positioned as both a potential threat to dignity, and as a prerequisite to achieving it. The paper concludes by discussing the risks of policy agendas pursuing a narrow understanding of dignity as simply independence of care.
Transcatheter closure of atrial septal defect with deficient posterior-inferior or inferior vena cava rim under echocardiography only: a feasibility and safety analysis
Authors: Huang Liu Liu , Wu Ji , Chen Mai , Jiang Chun Lan , Zeng De C. , Su Chun Xiao , Zheng Bao Shi 
Published: July 2021

AbstractBackground:The safe closure of atrial septal defect with deficient posterior-inferior or inferior vena cava rim is a controversial issue. Few studies have been conducted on the closure of atrial septal defect with deficient posterior-inferior or inferior vena cava rim without fluoroscopy. This study evaluated the feasibility and safety of echocardiography-guided transcatheter closure of atrial septal defect with deficient posterior-inferior or inferior vena cava rim.Methods:The data of 136 patients who underwent transcatheter atrial septal defect closure without fluoroscopy from March 2017 to March 2020 were retrospectively analysed. The patients were classified into the deficient (n = 45) and sufficient (n = 91) posterior-inferior or inferior vena cava rim groups. Procedure and the follow-up results were compared between the two groups.Results:Atrial septal defect indexed diameter and the device indexed diameter in the deficient rim group were both larger than that in the sufficient rim group (22.12 versus 17.38 mm/m2, p < 0.001; 24.77 versus 21.21 mm/m2, p = 0.003, respectively). There was no significant difference in the success rate of occlusion between two groups (97.78% in the deficient rim group versus 98.90% in the sufficient rim group, p = 1.000). During follow-up, the incidence of severe adverse cardiac events was not statistically significant (p = 0.551).Conclusions:Atrial septal defect with deficient posterior-inferior or inferior vena cava rim can safely undergo transcatheter closure under echocardiography alone if precisely evaluated with transesophageal or transthoracic echocardiography and the size of the occluder is appropriate. The mid-term results after closure are similar to that for an atrial septal defect with sufficient rim.
Incidence and risk factor of vocal cord paralysis following slide tracheoplasty for congenital tracheal stenosis: a retrospective observational study
Authors: Kaneko Naoki , Hasegawa Tomomi 
Published: July 2021

AbstractBackground:Slide tracheoplasty for congenital tracheal stenosis (CTS) has been shown to improve post-operative outcomes, but the incidence and risk factors of vocal cord paralysis (VCP) following slide tracheoplasty remain unclear. This study aimed to review our experience of slide tracheoplasty for CTS with a focus on post-operative VCP.Methods:Twenty-eight patients, who underwent tracheal reconstruction with or without cardiovascular repair at Kobe Children’s Hospital between June, 2016 and March, 2020 were enrolled in this retrospective observational study. They were divided into two groups based on the presence of a pulmonary artery sling (PA sling). Perioperative variables were compared between the two groups.Results:Twenty-one of the 28 patients underwent concomitant repair for associated cardiovascular anomalies, including 15 patients with PA sling. The overall incidence of VCP following slide tracheoplasty was 28.6%. The incidences of VCP were 46.7% in patients with CTS and PA sling, which were 14.3% in CTS patients without cardiovascular anomalies. The only risk factor associated with VCP following slide tracheoplasty was a concomitant repair for PA sling. Post-operatively, the duration of nasogastric tube feeding in patients with VCP was significantly longer than that in patients without VCP.Conclusions:The incidence of VCP following slide tracheoplasty for CTS was high, especially in concomitant repair cases for PA sling. Routine screening and evaluation of VCP soon after post-operative extubation is required for its appropriate management.
Socio-economic inequalities in dietary intake in Chile: a systematic review
Authors: Vega-Salas María Jesús , Caro Paola , Johnson Laura , Papadaki Angeliki 
Published: July 2021

AbstractObjective:Understanding the socio-economic inequalities in dietary intake is crucial when addressing the socio-economic gradient in obesity rates and non-communicable diseases. We aimed to systematically assess the association between socio-economic position (SEP) and dietary intake in Chile.Design:We searched for peer-reviewed and grey literature from inception until 31 December 2019 in PubMed, Scopus, PsycINFO, Web of Sciences and LILACS databases. Observational studies published in English and Spanish, reporting the comparison of at least one dietary factor between at least two groups of different SEP in the general Chilean population, were selected. Two researchers independently conducted data searches, screening and extraction and assessed study quality using an adaptation of the Newcastle Ottawa Quality Assessment Scale.Results:Twenty-one articles (from eighteen studies) were included. Study quality was considered low, medium and high for 24, 52 and 24 % of articles, respectively. Moderate-to-large associations indicated lower intake of fruit and vegetables, dairy products and fish/seafood and higher pulses consumption among adults of lower SEP. Variable evidence of association was found for energy intake and macronutrients, in both children and adults.Conclusions:Our findings highlight some socio-economic inequalities in diets in Chile, evidencing an overall less healthy food consumption among the lower SEP groups. New policies to reduce these inequalities should tackle the unequal distribution of factors affecting healthy eating among the lower SEP groups. These findings also provide important insights for developing strategies to reduce dietary inequalities in Chile and other countries that have undergone similar nutritional transitions.