bluuebunny/crossref_metadata_2025_split huggingface dataset:
Dosimetry of a 6 MV flattening filter-free small photon beam using various detectors
Authors: Dwivedi Shekhar , Kansal Sandeep , Dangwal Vinod Kumar , Bharati Avinav , Shukla Jooli 
Published: April 2021

Abstract
The present study aimed to dosimetrically evaluate the small-fields of a 6 MV flattening filter-free (FFF) photon beam using different detectors.The 6 MV FFF photon beam was used for measurement of output factor, depth dose, and beam profile of small-fields of sizes 0.6 cm × 0.6 cm to 6.0 cm × 6.0 cm. The five detectors used were SNC125c, PinPoint, EDGE, EBT3, and TLD-100. All measurements were performed as per the International Atomic Energy Agency TRS 483 protocol. Output factors measured using different detectors as direct reading ratios showed significant variation for the smallest fields, whereas after correcting them according to TRS 483, all sets of output factors were nearly compatible with each other when measurement uncertainty was also considered. The beam profile measured using SNC125c showed the largest penumbra for all field sizes, whereas the smallest was recorded with EDGE. Compared with that of EBT3, the surface dose was found to be much higher for all the other detectors. PinPoint, EBT3, TLD-100, and EDGE were found to be the detector of choice for small-field output factor measurements; however, PinPoint needs special attention when used for the smallest field size (0.6 cm × 0.6 cm). EDGE and EBT3 are optimal for measuring beam profiles. EBT3, PinPoint, and EDGE can be selected for depth dose measurements, and EBT3 is suitable for surface dose estimation.
Tailored Bayes: a risk modeling framework under unequal misclassification costs
Authors: Karapanagiotis Solon , Benedetto Umberto , Mukherjee Sach , Kirk Paul D W , Newcombe Paul J 
Published: April 2021

Summary
Risk prediction models are a crucial tool in healthcare. Risk prediction models with a binary outcome (i.e., binary classification models) are often constructed using methodology which assumes the costs of different classification errors are equal. In many healthcare applications, this assumption is not valid, and the differences between misclassification costs can be quite large. For instance, in a diagnostic setting, the cost of misdiagnosing a person with a life-threatening disease as healthy may be larger than the cost of misdiagnosing a healthy person as a patient. In this article, we present Tailored Bayes (TB), a novel Bayesian inference framework which “tailors” model fitting to optimize predictive performance with respect to unbalanced misclassification costs. We use simulation studies to showcase when TB is expected to outperform standard Bayesian methods in the context of logistic regression. We then apply TB to three real-world applications, a cardiac surgery, a breast cancer prognostication task, and a breast cancer tumor classification task and demonstrate the improvement in predictive performance over standard methods.
Patient experience of scar assessment and the use of scar assessment tools during burns rehabilitation: a qualitative study
Authors: Price Kate , Moiemen Naiem , Nice Laura , Mathers Jonathan 
Published: May 2021

Abstract

Background
Scar assessment plays a key role during burns aftercare, to monitor scar remodelling and patients’ psychosocial well-being. To aid assessment, subjective scar assessment scales are available that use health-care professionals’ and patients’ opinions to score scar characteristics. The subjective scales are more widely used in clinical practice over objective scar measures. To date, there is no research that considers patients’ views on scar assessment and the role of subjective and objective assessment tools. Therefore, the aim of this qualitative study was to explore patients’ perspectives on scar assessment and the utility of scar assessment tools during burns rehabilitation.

Methods
Semi-structured interviews were conducted with 10 adult burn patients who were being reviewed in clinic for scarring. Participants were recruited via their clinical care team and research nurses at the Queen Elizabeth Hospital, Birmingham, UK. Topics covered during interview included patient experience of scar assessment, the use of scar assessment tools and discussion surrounding important factors to be addressed when assessing scars. A thematic analysis using the Framework Method was conducted.

Results
Participants identified key subthemes that contribute towards the overarching theme of patient-centred scar assessment. These are: patient-led care; continuity in care; learning how to self-manage scarring; and psychological assessment. Links were demonstrated between these subthemes and the remaining themes that describe scar assessment strategies, indicating their potential patient-centred contributions. The subjective opinions of clinicians were found to be valued above the use of subjective or objective scar assessment tools. Scar assessment scales were perceived to be a beneficial method for self-reflection in relation to psychosocial functioning. However, minimal feedback and review of completed assessment scales led to uncertainty regarding their purpose. Patients perceived objective tools to be of primary use for health-care professionals, though the measures may aid patients’ understanding of scar properties.

Conclusions
Scar assessment tools should be used to support, rather than replace, health-care professionals’ subjective judgements of scarring. Adapting the way in which clinicians introduce and use scar assessment tools, according to patient needs, can support a patient-centred approach to scar assessment.
Differences in Rhythmic Neural Activity Supporting the Temporal and Spatial Cueing of Attention
Authors: Meehan Chloe E , Wiesman Alex I , Spooner Rachel K , Schantell Mikki , Eastman Jacob A , Wilson Tony W 
Published: April 2021

Abstract
The neural processes serving the orienting of attention toward goal-relevant stimuli are generally examined with informative cues that direct visual attention to a spatial location. However, cues predicting the temporal emergence of an object are also known to be effective in attentional orienting but are implemented less often. Differences in the neural oscillatory dynamics supporting these divergent types of attentional orienting have only rarely been examined. In this study, we utilized magnetoencephalography and an adapted Posner cueing task to investigate the spectral specificity of neural oscillations underlying these different types of attentional orienting (i.e., spatial vs. temporal). We found a spectral dissociation of attentional cueing, such that alpha (10–16 Hz) oscillations were central to spatial orienting and theta (3–6 Hz) oscillations were critical to temporal orienting. Specifically, we observed robust decreases in alpha power during spatial orienting in key attention areas (i.e., lateral occipital, posterior cingulate, and hippocampus), along with strong theta increases during temporal orienting in the primary visual cortex. These results suggest that the oscillatory dynamics supporting attentional orienting are spectrally and anatomically specific, such that spatial orienting is served by stronger alpha oscillations in attention regions, whereas temporal orienting is associated with stronger theta responses in visual sensory regions.
Genomic Analyses Unveil Helmeted Guinea Fowl (Numida meleagris) Domestication in West Africa
Authors: Shen Quan-Kuan , Peng Min-Sheng , Adeola Adeniyi C , Kui Ling , Duan Shengchang , Miao Yong-Wang , Eltayeb Nada M , Lichoti Jacqueline K , Otecko Newton O , Strillacci Maria Giuseppina , Gorla Erica , Bagnato Alessandro , Charles Olaogun S , Sanke Oscar J , Dawuda Philip M , Okeyoyin Agboola O , Musina John , Njoroge Peter , Agwanda Bernard , Kusza Szilvia , Nanaei Hojjat Asadollahpour , Pedar Rana , Xu Ming-Min , Du Yuan , Nneji Lotanna M , Murphy Robert W , Wang Ming-Shan , Esmailizadeh Ali , Dong Yang , Ommeh Sheila C , Zhang Ya-Ping 
Published: April 2021

Abstract
Domestication of the helmeted guinea fowl (HGF; Numida meleagris) in Africa remains elusive. Here we report a high-quality de novo genome assembly for domestic HGF generated by long- and short-reads sequencing together with optical and chromatin interaction mapping. Using this assembly as the reference, we performed population genomic analyses for newly sequenced whole-genomes for 129 birds from Africa, Asia, and Europe, including domestic animals (n = 89), wild progenitors (n = 34), and their closely related wild species (n = 6). Our results reveal domestication of HGF in West Africa around 1,300–5,500 years ago. Scanning for selective signals characterized the functional genes in behavior and locomotion changes involved in domestication of HGF. The pleiotropy and linkage in genes affecting plumage color and fertility were revealed in the recent breeding of Italian domestic HGF. In addition to presenting a missing piece to the jigsaw puzzle of domestication in poultry, our study provides valuable genetic resources for researchers and breeders to improve production in this species.
Fall-Related Injuries Mediate the Relationship Between Self-Reported Hearing Loss and Mortality in Middle-Aged and Older Adults
Authors: Xu Dongjuan , Newell Melissa D , Francis Alexander L 
Published: April 2021

Abstract

Background
Hearing loss is associated with a greater risk of death in older adults. This relationship has been attributed to an increased risk of injury, particularly due to falling, in individuals with hearing loss. However, the link between hearing loss and mortality across the life span is less clear.

Methods
We used structural equation modeling and mediation analysis to investigate the relationship between hearing loss, falling, injury, and mortality across the adult life span in public-use data from the National Health Interview Survey and the National Death Index. We examined (a) the association between self-reported hearing problems and later mortality, (b) the associations between self-reported hearing problems and the risk of injury and degree and type of injury, (c) the mediating role of falling and injury in the association between self-reported hearing problems and mortality, and (d) whether these relationships differ in young (18–39), middle-aged (40–59), and older (60+) age groups.

Results
In all 3 age ranges, those reporting hearing problems were more likely to fall, were more likely to sustain an injury, and were more likely to sustain a serious injury, than those not reporting hearing problems. While there was no significant association between hearing loss and mortality in the youngest category, there was for middle-aged and older participants, and for both, the fall-related injury was a significant mediator in this relationship.

Conclusions
Fall-related injury mediates the relationship between hearing loss and mortality for middle-aged as well as older adults, suggesting a need for further research into mechanisms and remediation.
Propofol pharmacokinetics and pharmacodynamics—a perspective in minimally invasive extracorporeal circulation
Authors: Condello Ignazio , Santarpino Giuseppe , Fiore Flavio , Di Bari Nicola , Speziale Giuseppe , Moscarelli Marco , Nasso Giuseppe 
Published: May 2021

AbstractThere is limited evidence as to the pharmacokinetic changes expected in adults with extracorporeal technologies. Drugs may be taken up by various components of the cardiopulmonary bypass circuit itself. Issues include the increased volume of the circuit leading to haemodilution; the sequestration of lipophilic drugs within the circuit tubing; and the absorption of proteins, especially albumin, onto the circuit, which can result in increased free drug. However, in this context, the aspect of pharmacokinetics and pharmacodynamics during minimally invasive extracorporeal circulation has not been described and evidenced by scientific studies. In this single-centre control study of 60 patients undergoing isolated coronary artery bypass grafting, we present the results focused on postoperative albumin values and intraoperative propofol dosages in patients undergoing surgery with minimally invasive (n = 30) versus conventional extracorporeal circulation (n = 30). In the minimally invasive extracorporeal circulation group, a lower propofol dosage titrated to a bispectral index of 40–45 was used during coronary artery bypass grafting, and an improvement of postoperative concentration of serum albumin was observed compared to the conventional extracorporeal circulation group.
Initial development of a self-assessment approach for coproduction value creation by an international community of practice
Authors: Oliver Brant J , Forcino Rachel C , Batalden Paul B 
Published: May 2021

Abstract

Background
Coproduction offers a new way of conceptualizing healthcare as a service that is co-created by people (health professionals and people seeking health services) rather than a product that is generated by providers or health systems and delivered to patients. This offers new possibilities for those introducing and testing changes, and it enables additional ways of creating value. Fjeldstad and colleagues describe the architecture of several kinds of value creating systems: (i) Chain; (ii) Shop; (iii) Network and (iv) Access. An international Value Creating Business Model Community of practice (VCBM CoP) was formed by the International Coproduction of Health Network and explored these types of systems and developed a self-assessment guide for health systems to use to assess value.

Methods
An international community of practice comprising leaders, clinicians, patients and finance specialists representing 12 health systems from four countries (USA, UK, Israel and Sweden) met monthly for 1 year and used a semi-structured process to iteratively refine and adapt Fjeldstad’s model for use in healthcare and develop a draft self-assessment guide. The process concluded with initial focus group user experience sessions with six health systems.

Results
The community of practice successfully completed a 1-year journey of discovery, development and learning, resulting in two products: (1) a full-version self-assessment guide (detailed) and (2) an abbreviated ‘short-form’ of the guide. Initial focus-group results suggest that there is initial perceived feasibility, acceptability and utility of the guides and that further development and research is reasonable to pursue. Results suggest significant variation and context specificity in the use of the guide, simple and complex knowledge transfer applications in use, and the need for the development of simple and technology supported versions for use in the future.

Conclusion
The VCBM CoP has successfully completed a 1-year collaborative learning cycle, resulting in the development of a self-assessment guide that is now ready for additional investigation using formal research methods. The CO-VALUE study has been designed to build on the work of the CoP and includes qualitative and quantitative assessment phases and a concept mapping study.
Cranial Musculoskeletal Description of Black-Throated Finch (Aves: Passeriformes: Estrildidae) with DiceCT
Authors: To K H T , O’Brien H D , Stocker M R , Gignac P M 
Published: April 2021

AbstractSynopsis Dietary requirements and acquisition strategies change throughout ontogeny across various clades of tetrapods, including birds. For example, birds hatch with combinations of various behavioral, physiological, and morphological factors that place them on an altricial–precocial spectrum. Passeriformes (=songbirds) in particular, a family constituting approximately more than half of known bird species, displays the most drastic difference between hatchling and adults in each of these aspects of their feeding biology. How the shift in dietary resource acquisition is managed during ontogeny alongside its relationship to the morphology of the feeding apparatus has been largely understudied within birds. Such efforts have been hampered partly due to the small size of many birds and the diminutive jaw musculature they employ. In this study, we used standard and diffusible iodine-based contrast-enhanced computed tomography in conjunction with digital dissection to quantify and describe the cranial musculature of the Black-throated Finch (Poephila cincta) at fledgling and adult stages. Our results reveal that in both the fledgling and the adult, cranial musculature shows clear and complex partitioning in the Musculus adductor mandibulae externus that is consistent with other families within Passeriformes. We quantified jaw-muscle sizes and found that the adult showed a decrease in muscle mass in comparison to the fledgling individual. We propose that this could be the result of low sample size or a physiological effect of parental care in Passeriformes. Our study shows that high-resolution visualization techniques are informative at revealing morphological discrepancies for studies that involve small specimens such as Passeriformes especially with careful specimen selection criteria.
Exploring the Nonaffiliated in South America
Authors: Da Costa Néstor , Morello Gustavo , Rabbia Hugo H , Romero Catalina 
Published: May 2021

AbstractThis work explores the phenomenon of the “nonaffiliated” in Latin America and presents partial results of a qualitative research project that included in-depth interviews with fifty-eight nonaffiliated in Cordoba (Argentina), Lima (Peru), and Montevideo (Uruguay). After analyzing the main differences between nonbelievers and believers who have no religious affiliation, we propose a typology for understanding these two groups, which display great diversity within themselves while adopting characteristics of the cultures of their own countries. Three large groups are identified: atheists, nonconfessional, and indifferent. Among the atheists, we find two emphases: militant and indifferent. Among the nonconfessional believers, three groups are identified: those who engage in individual practices related to transcendence, those who engage in collective practices, and those who abandoned Christianity yet express their religiosity in the same keys. The indifferent are those to whom religion deserves no attention.
Comparison of Next-Generation Sequencing-Based Human Leukocyte Antigen Typing with Clinical Flow Cytometry and Allele-Specific PCR Melting Assays for HLA-B27 Genotyping
Authors: Profaizer Tracie , Dibb Kimberly , Bethers Holly , Monds Cassandra , Andreasen John , Delgado Julio C , Lázár-Molnár Eszter 
Published: May 2021

Abstract

Background
Due to the strong association between ankylosing spondylitis and Human Leukocyte Antigen (HLA)-B27, accurate identification of HLA-B27 is important in the diagnosis of patients with suspected spondyloarthritides. For this study, we compared a high-resolution HLA-B typing method to the clinical flow cytometry and allele-specific PCR melting assays to determine clinical benefits of high-resolution testing.

Methods
Residual clinical samples submitted for HLA-B27 testing by flow cytometry were tested by single-locus HLA-B genotyping using next-generation sequencing (NGS), and PCR with melting curve analysis, currently used as a reflex test for indeterminate flow cytometry results.

Results
Fifty out of the 51 samples (98%) positive by flow cytometry confirmed as HLA-B27 positive by PCR melting assay and by NGS. The sample that did not confirm was genotyped as HLA-B*07:02. All the samples negative by flow cytometry were confirmed as HLA-B27 negative by both PCR melting assay and NGS. For the group that was indeterminate by flow cytometry, 84.5% (n = 49) typed as positive for HLA-B27, while 15.5% (n = 9) were negative for HLA-B27 but positive for HLA-B*07:02. NGS was the only method able to distinguish between pathogenic and nonpathogenic HLA-B27 variants, in contrast to the flow cytometry or the PCR melting assays.

Conclusions
Single-locus NGS is superior to flow cytometry and PCR melting assay for the unambiguous identification of HLA-B27 variants, and uniquely able to distinguish between pathogenic and nonpathogenic B27 alleles. Due to its high accuracy, it may be a feasible superior alternative to flow cytometry and traditional molecular methods for clinical HLA-B27 testing.
Practical development and operationalization of a 12-hour hospital census prediction algorithm
Authors: Ryu Alexander J , Romero-Brufau Santiago , Shahraki Narges , Zhang Jiawei , Qian Ray , Kingsley Thomas C 
Published: April 2021

Abstract
Hospital census prediction has well-described implications for efficient hospital resource utilization, and recent issues with hospital crowding due to CoVID-19 have emphasized the importance of this task. Our team has been leading an institutional effort to develop machine-learning models that can predict hospital census 12 hours into the future. We describe our efforts at developing accurate empirical models for this task. Ultimately, with limited resources and time, we were able to develop simple yet useful models for 12-hour census prediction and design a dashboard application to display this output to our hospital’s decision-makers. Specifically, we found that linear models with ElasticNet regularization performed well for this task with relative 95% error of +/− 3.4% and that this work could be completed in approximately 7 months.
Estimation of direct and social effects of feeding duration in growing pigs using records from automatic feeding stations
Authors: Angarita Belcy K , Han Junjie , Cantet Rodolfo J C , Chewning Sarah K , Wurtz Kaitlin E , Siegford Janice M , Ernst Catherine W , Steibel Juan Pedro 
Published: May 2021

AbstractAutomatic feeding systems in pig production allow for the recording of individual feeding behavior traits, which might be influenced by the social interactions among individuals. This study fitted mixed models to estimate the direct and social effects on visit duration at the feeder of group-housed pigs. The dataset included 74,413 records of each visit duration time (min) event at the automatic feeder from 135 pigs housed in 14 pens. The sequence of visits at the feeder was employed as a proxy for the social interaction between individuals. To estimate animal effects, the direct effect was apportioned to the animal feeding (feeding pig), and the social effect was apportioned to the animal that entered the feeder immediately after the feeding pig left the feeding station (follower). The data were divided into two subsets: “non-immediate replacement” time (NIRT, N = 6,256), where the follower pig occupied the feeder at least 600 s after the feeding pig left the feeder, and “immediate replacement” time (IRT, N = 58,255), where the elapsed time between replacements was less than or equal to 60 s. The marginal posterior distribution of the parameters was obtained by Bayesian method. Using the IRT subset, the posterior mean of the proportion of variance explained by the direct effect (Prpσ^d2) was 18% for all models. The proportion of variance explained by the follower social effect (Prpσ^f2) was 2%, and the residual variance (σ^e2) decreased, suggesting an improved model fit by including the follower effect. Fitting the models with the NIRT subset, the estimate of Prpσ^d2 was 20% but the Prpσ^f2 was almost zero and σ^e2 was identical for all models. For the IRT subset, the predicted best linear unbiased predictor (BLUP) of direct (Direct BLUP) and social (Follower BLUP) random effects on visit duration at the feeder of an animal was calculated. Feeder visit duration time was not correlated with traits, such as weight gain or average feed intake (P &gt; 0.05), whereas for the daily feeder occupation time, the estimated correlation was positive with the Direct BLUP (r^ = 0.51, P &lt; 0.05) and negative with the Follower BLUP (r^= −0.26, P &lt; 0.05). The results suggest that the visit duration of an animal at the single-space feeder was influenced by both direct and social effects when the replacement time between visits was less than 1 min. Finally, animals that spent a longer time per day at the feeder seemed to do so by shortening the meal length of the preceding individual at the feeder.