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23 pages, 2145 KiB  
Article
Effects of Community Assets on Major Health Conditions in England: A Data Analytic Approach
by Aristides Moustakas, Linda J. M. Thomson, Rabya Mughal and Helen J. Chatterjee
Healthcare 2024, 12(16), 1608; https://doi.org/10.3390/healthcare12161608 - 12 Aug 2024
Abstract
Introduction: The broader determinants of health including a wide range of community assets are extremely important in relation to public health outcomes. Multiple health conditions, multimorbidity, is a growing problem in many populations worldwide. Methods: This paper quantified the effect of community assets [...] Read more.
Introduction: The broader determinants of health including a wide range of community assets are extremely important in relation to public health outcomes. Multiple health conditions, multimorbidity, is a growing problem in many populations worldwide. Methods: This paper quantified the effect of community assets on major health conditions for the population of England over six years, at a fine spatial scale using a data analytic approach. Community assets, which included indices of the health system, green space, pollution, poverty, urban environment, safety, and sport and leisure facilities, were quantified in relation to major health conditions. The health conditions examined included high blood pressure, obesity, dementia, diabetes, mental health, cardiovascular conditions, musculoskeletal conditions, respiratory conditions, kidney and liver disease, and cancer. Cluster analysis and dendrograms were calculated for the community assets and major health conditions. For each health condition, a statistical model with all community assets was fitted, and model selection was performed. The number of significant community assets for each health condition was recorded. The unique variance, explained by each significant community asset per health condition, was quantified using hierarchical variance partitioning within an analysis of variance model. Results: The resulting data indicate major health conditions are often clustered, as are community assets. The results suggest that diversity and richness of community assets are key to major health condition outcomes. Primary care service waiting times and distance to public parks were significant predictors of all health conditions examined. Primary care waiting times explained the vast majority of the variances across health conditions, with the exception of obesity, which was better explained by absolute poverty. Conclusions: The implications of the combined findings of the health condition clusters and explanatory power of community assets are discussed. The vast majority of determinants of health could be accounted for by healthcare system performance and distance to public green space, with important covariate socioeconomic factors. Emphases on community approaches, significant relationships, and asset strengths and deficits are needed alongside targeted interventions. Whilst the performance of the public health system remains of key importance, community assets and local infrastructure remain paramount to the broader determinants of health. Full article
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<p>(<b>a</b>) A spatial plot of a local healthcare unit (LTLA). Map plotted in Google maps using data from the Geoportal Statistics UK, available at: <a href="https://geoportal.statistics.gov.uk/datasets/196d1a072aaa4882a50be333679d4f63/explore?showTable=true" target="_blank">https://geoportal.statistics.gov.uk/datasets/196d1a072aaa4882a50be333679d4f63/explore?showTable=true</a> (accessed 20 February 2024). (<b>b</b>) Block diagram of the framework applied here. Initially data were mined from publicly available spatiotemporal data sets at the level of an LTLA. Data were standardised sequentially to facilitate comparisons across space, time, and unequal demographics. Clusters of community assets and health conditions were computed and visualised. Generalised linear models (GLMs) were fitted for each health condition as dependent variables and community assets as explanatory variables. Model selection was performed for each GLM eliminating the least informative community asset variables per health condition. The diversity of community assets as significant predictors per health condition was calculated. Hierarchical variance partitioning between each health condition and the significant explanatory community assets was computed indicating the unique variance explained by each community assets per health condition.</p>
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<p>(<b>a</b>) A spatial plot of a local healthcare unit (LTLA). Map plotted in Google maps using data from the Geoportal Statistics UK, available at: <a href="https://geoportal.statistics.gov.uk/datasets/196d1a072aaa4882a50be333679d4f63/explore?showTable=true" target="_blank">https://geoportal.statistics.gov.uk/datasets/196d1a072aaa4882a50be333679d4f63/explore?showTable=true</a> (accessed 20 February 2024). (<b>b</b>) Block diagram of the framework applied here. Initially data were mined from publicly available spatiotemporal data sets at the level of an LTLA. Data were standardised sequentially to facilitate comparisons across space, time, and unequal demographics. Clusters of community assets and health conditions were computed and visualised. Generalised linear models (GLMs) were fitted for each health condition as dependent variables and community assets as explanatory variables. Model selection was performed for each GLM eliminating the least informative community asset variables per health condition. The diversity of community assets as significant predictors per health condition was calculated. Hierarchical variance partitioning between each health condition and the significant explanatory community assets was computed indicating the unique variance explained by each community assets per health condition.</p>
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<p>(<b>a</b>) Dendrograms of the cluster analysis among health conditions. The cluster analysis deploys a hierarchical procedure to form the clusters. Variables were grouped together that are correlated (i.e., similarity) to each other. Similarity is indicated by the Pearsons’ correlation values. (<b>b</b>) Dendrograms of the cluster analysis among the assets. The cluster analysis deployed a hierarchical procedure to form the clusters. Variables were grouped together that are correlated (i.e., similarity) with each other. Similarity is indicated by the Pearsons’ correlation values.</p>
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<p>(<b>a</b>) Dendrograms of the cluster analysis among health conditions. The cluster analysis deploys a hierarchical procedure to form the clusters. Variables were grouped together that are correlated (i.e., similarity) to each other. Similarity is indicated by the Pearsons’ correlation values. (<b>b</b>) Dendrograms of the cluster analysis among the assets. The cluster analysis deployed a hierarchical procedure to form the clusters. Variables were grouped together that are correlated (i.e., similarity) with each other. Similarity is indicated by the Pearsons’ correlation values.</p>
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<p>(<b>a</b>) Number of community assets included in the final model between a health condition (i.e., dependent variable) and the ten community asset explanatory variables investigated. The final model refers to the community assets included in the model after model selection eliminating the least informative ones. (<b>b</b>) Number of times that a community asset was included in the final model for a health condition.</p>
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<p>(<b>a</b>) Pie chart of unique variance explained by each community asset per health condition. (<b>b</b>) Sum of total unique variance explained by each community asset across health conditions. (<b>c</b>) Sum of total unique variance explained per health condition.</p>
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<p>(<b>a</b>) Pie chart of unique variance explained by each community asset per health condition. (<b>b</b>) Sum of total unique variance explained by each community asset across health conditions. (<b>c</b>) Sum of total unique variance explained per health condition.</p>
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17 pages, 857 KiB  
Article
Phase Separation of SARS-CoV-2 Nucleocapsid Protein with TDP-43 Is Dependent on C-Terminus Domains
by Michael J. Strong, Crystal McLellan, Brianna Kaplanis, Cristian A. Droppelmann and Murray Junop
Int. J. Mol. Sci. 2024, 25(16), 8779; https://doi.org/10.3390/ijms25168779 (registering DOI) - 12 Aug 2024
Abstract
The SARS-CoV-2 nucleocapsid protein (N protein) is critical in viral replication by undergoing liquid–liquid phase separation to seed the formation of a ribonucleoprotein (RNP) complex to drive viral genomic RNA (gRNA) translation and in suppressing both stress granules and processing bodies, which is [...] Read more.
The SARS-CoV-2 nucleocapsid protein (N protein) is critical in viral replication by undergoing liquid–liquid phase separation to seed the formation of a ribonucleoprotein (RNP) complex to drive viral genomic RNA (gRNA) translation and in suppressing both stress granules and processing bodies, which is postulated to increase uncoated gRNA availability. The N protein can also form biomolecular condensates with a broad range of host endogenous proteins including RNA binding proteins (RBPs). Amongst these RBPs are proteins that are associated with pathological, neuronal, and glial cytoplasmic inclusions across several adult-onset neurodegenerative disorders, including TAR DNA binding protein 43 kDa (TDP-43) which forms pathological inclusions in over 95% of amyotrophic lateral sclerosis cases. In this study, we demonstrate that the N protein can form biomolecular condensates with TDP-43 and that this is dependent on the N protein C-terminus domain (N-CTD) and the intrinsically disordered C-terminus domain of TDP-43. This process is markedly accelerated in the presence of RNA. In silico modeling suggests that the biomolecular condensate that forms in the presence of RNA is composed of an N protein quadriplex in which the intrinsically disordered TDP-43 C terminus domain is incorporated. Full article
17 pages, 1842 KiB  
Article
Assessing the Value of Imaging Data in Machine Learning Models to Predict Patient-Reported Outcome Measures in Knee Osteoarthritis Patients
by Abhinav Nair, M. Abdulhadi Alagha, Justin Cobb and Gareth Jones
Bioengineering 2024, 11(8), 824; https://doi.org/10.3390/bioengineering11080824 (registering DOI) - 12 Aug 2024
Abstract
Knee osteoarthritis (OA) affects over 650 million patients worldwide. Total knee replacement is aimed at end-stage OA to relieve symptoms of pain, stiffness and reduced mobility. However, the role of imaging modalities in monitoring symptomatic disease progression remains unclear. This study aimed to [...] Read more.
Knee osteoarthritis (OA) affects over 650 million patients worldwide. Total knee replacement is aimed at end-stage OA to relieve symptoms of pain, stiffness and reduced mobility. However, the role of imaging modalities in monitoring symptomatic disease progression remains unclear. This study aimed to compare machine learning (ML) models, with and without imaging features, in predicting the two-year Western Ontario and McMaster Universities Arthritis Index (WOMAC) score for knee OA patients. We included 2408 patients from the Osteoarthritis Initiative (OAI) database, with 629 patients from the Multicenter Osteoarthritis Study (MOST) database. The clinical dataset included 18 clinical features, while the imaging dataset contained an additional 10 imaging features. Minimal Clinically Important Difference (MCID) was set to 24, reflecting meaningful physical impairment. Clinical and imaging dataset models produced similar area under curve (AUC) scores, highlighting low differences in performance AUC < 0.025). For both clinical and imaging datasets, Gradient Boosting Machine (GBM) models performed the best in the external validation, with a clinically acceptable AUC of 0.734 (95% CI 0.687–0.781) and 0.747 (95% CI 0.701–0.792), respectively. The five features identified included educational background, family history of osteoarthritis, co-morbidities, use of osteoporosis medications and previous knee procedures. This is the first study to demonstrate that ML models achieve comparable performance with and without imaging features. Full article
37 pages, 619 KiB  
Review
Long COVID in Children and Adolescents: A Critical Review
by Maria Rothensteiner, Franziska Leeb, Florian Götzinger, Marc Tebruegge and Angela Zacharasiewicz
Children 2024, 11(8), 972; https://doi.org/10.3390/children11080972 (registering DOI) - 12 Aug 2024
Abstract
(1) Background: Data on persisting symptoms after SARS-CoV-2 infection in children and adolescents are conflicting. Due to the absence of a clear pathophysiological correlate and a definitive diagnostic test, the diagnosis of Long COVID currently rests on consensus definitions only. This review aims [...] Read more.
(1) Background: Data on persisting symptoms after SARS-CoV-2 infection in children and adolescents are conflicting. Due to the absence of a clear pathophysiological correlate and a definitive diagnostic test, the diagnosis of Long COVID currently rests on consensus definitions only. This review aims to summarise the evidence regarding Long COVID in children and adolescents, incorporating the latest studies on this topic. (2) Methods: We designed a comprehensive search strategy to capture all relevant publications using Medline via the PubMed interface, with the initial literature search conducted in April 2023. To be included, publications had to present original data and include >50 participants with Long COVID symptoms aged between 0 and18 years. (3) Results: A total of 51 studies met the inclusion criteria, with most studies originating from Europe (n = 34; 66.7%), followed by the Americas (n = 8; 15.7%) and Asia (n = 7; 13.7%). Various study designs were employed, including retrospective, cross-sectional, prospective, or ambispective approaches. Study sizes varied significantly, with 18/51 studies having fewer than 500 participants. Many studies had methodological limitations: 23/51 (45.1%) studies did not include a control group without prior COVID-19 infection. Additionally, a considerable number of papers (33/51; 64.7%) did not include a clear definition of Long COVID. Other limitations included the lack of PCR- or serology-based confirmation of SARS-CoV-2 infection in the study group. Across different studies, there was high variability in the reported prevalence of Long COVID symptoms, ranging from 0.3% to 66.5%, with the majority of studies included in this review reporting prevalences of approximately 10–30%. Notably, the two studies with the highest prevalences also reported very high prevalences of Long COVID symptoms in the control group. There was a relatively consistent trend for Long COVID prevalence to decline substantially over time. The prevalence of Long COVID appeared to differ across different paediatric age groups, with teenagers being more commonly affected than younger children. Furthermore, data suggest that children and adolescents are less commonly affected by Long COVID compared to adults. In children and adolescents, Long COVID is associated with a very broad range of symptoms and signs affecting almost every organ system, with the respiratory, cardiovascular, and neuropsychiatric systems being most commonly affected. (4) Conclusions: The heterogeneity and limitations of published studies on Long COVID in children and adolescents complicate the interpretation of the existing data. Future studies should be rigorously designed to address unanswered questions regarding this complex disease. Full article
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<p>Number of publications featuring the term COVID (<b>A</b>) or any of the terms ‘Long COVID’, ‘Post-acute COVID’ or ‘PASC’ (<b>B</b>) per year since the beginning of the COVID-19 pandemic. Note that the y-axis is logarithmic.</p>
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17 pages, 4178 KiB  
Article
Elastin-Derived Peptide-Based Hydrogels as a Potential Drug Delivery System
by Othman Al Musaimi, Keng Wooi Ng, Varshitha Gavva, Oscar M. Mercado-Valenzo, Hajira Banu Haroon and Daryl R. Williams
Gels 2024, 10(8), 531; https://doi.org/10.3390/gels10080531 - 12 Aug 2024
Abstract
A peptide-based hydrogel sequence was computationally predicted from the Ala-rich cross-linked domains of elastin. Three candidate peptides were subsequently synthesised and characterised as potential drug delivery vehicles. The elastin-derived peptides are Fmoc-FFAAAAKAA-NH2, Fmoc-FFAAAKAA-NH2, and Fmoc-FFAAAKAAA-NH2. All three [...] Read more.
A peptide-based hydrogel sequence was computationally predicted from the Ala-rich cross-linked domains of elastin. Three candidate peptides were subsequently synthesised and characterised as potential drug delivery vehicles. The elastin-derived peptides are Fmoc-FFAAAAKAA-NH2, Fmoc-FFAAAKAA-NH2, and Fmoc-FFAAAKAAA-NH2. All three peptide sequences were able to self-assemble into nanofibers. However, only the first two could form hydrogels, which are preferred as delivery systems compared to solutions. Both of these peptides also exhibited favourable nanofiber lengths of at least 1.86 and 4.57 µm, respectively, which are beneficial for the successful delivery and stability of drugs. The shorter fibre lengths of the third peptide (maximum 0.649 µm) could have inhibited their self-assembly into the three-dimensional networks crucial to hydrogel formation. Full article
(This article belongs to the Special Issue Recent Advances in Gels Engineering for Drug Delivery (2nd Edition))
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<p>Elastin protein sequence. Colours and underlining represent the abundance of repeated sequences of the Ala-rich cross-linking domain.</p>
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<p>Flory–Huggins interaction parameter Chi (χ) calculated computationally using Materials Studio software (initial screening).</p>
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<p>Flory–Huggins interaction parameter Chi (χ) calculated computationally using Materials Studio software versus VPGVG.</p>
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<p>Predicted molecular structures of EDP-1, EDP-2, and EDP-3 (along with H-bond distance 0.400 Å) using I-TASSER [<a href="#B59-gels-10-00531" class="html-bibr">59</a>,<a href="#B60-gels-10-00531" class="html-bibr">60</a>,<a href="#B61-gels-10-00531" class="html-bibr">61</a>].</p>
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<p>Chemical structure of the three peptide sequences investigated in this work.</p>
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<p>Critical aggregation concentration (CAC) of the selected peptides (<b>left</b>). Image of the three peptides to show the hydrogel formation (<b>right</b>). (<b>A</b>) EDP-1, (<b>B</b>) EDP-2, (<b>C</b>) EDP-3. (<b>D</b>) Digital images of the formed EDP-1 and EDP-2 hydrogels. Sigmoidal function fitted within the yellow region, where the red tangent shows the CAC.</p>
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<p>TEM morphology of the three peptides (scale bar= 100 nm).</p>
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<p>CD spectra for the three peptides investigated in this work.</p>
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<p>Shear modulus versus time plots for peptides EDP-1 and EDP-2 showing the storage modulus (G′) and loss modules (G″). Peptide solution concentration: 1% (wt/v).</p>
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16 pages, 4743 KiB  
Review
Renewable Power Systems: A Comprehensive Meta-Analysis
by Aleksy Kwilinski, Oleksii Lyulyov and Tetyana Pimonenko
Energies 2024, 17(16), 3989; https://doi.org/10.3390/en17163989 - 12 Aug 2024
Abstract
The ongoing amplification of climate change necessitates the exploration and implementation of effective strategies to mitigate ecological issues while simultaneously preserving economic and social well-being. Renewable power systems offer a way to reduce adverse anthropogenic effects without hindering economic growth. This study aims [...] Read more.
The ongoing amplification of climate change necessitates the exploration and implementation of effective strategies to mitigate ecological issues while simultaneously preserving economic and social well-being. Renewable power systems offer a way to reduce adverse anthropogenic effects without hindering economic growth. This study aims to conduct a comprehensive bibliometric analysis of renewable power systems to explore their historical context, identify influential studies, and uncover research gaps, hypothesizing that global contributions and policy support significantly influence the field’s dynamics. Following Preferred Reporting Items For Systematic Reviews And Meta-Analyses guidelines, this study utilized Scopus tools analysis and VOSviewer 1.6.20 software to examine the metadata sourced from scientific databases in Scopus. The outcomes of this investigation facilitate the identification of the most prolific countries and authors, as well as collaborative efforts that enrich the theoretical landscape of renewable power systems. The study also traces the evolution of research on renewable power systems. Furthermore, the results reveal key scientific clusters in the analysis: the first cluster concentrates on renewable energy and sustainable development, the second on the relationship between government policies and renewable power systems, and the third on the role of incentives that catalyse the advancement of renewable power systems. The findings of this meta-analysis not only contribute valuable insights to existing research but also enable the identification of emerging research areas related to renewable power system development. Full article
(This article belongs to the Section C: Energy Economics and Policy)
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<p>PRISMA guidelines for investigating renewable power systems.</p>
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<p>Dynamics of publications that focused on the investigation of renewable power systems.</p>
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<p>The co-authorship within the countries of researchers who investigated renewable power systems (considering the historical horizon analysis).</p>
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<p>The results of co-authorship analysis of publications that focused on investigations of renewable power systems.</p>
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<p>Visualization of the text-mining of the studies that focused on the investigation of renewable power systems.</p>
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<p>Network visualization of the co-occurrence analysis of the studies that focused on the investigation of renewable power systems.</p>
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<p>Overlay visualization of the co-occurrence analysis of the studies that focused on the investigation of renewable power systems.</p>
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52 pages, 4733 KiB  
Article
AI-Driven Thoracic X-ray Diagnostics: Transformative Transfer Learning for Clinical Validation in Pulmonary Radiography
by Md Abu Sufian, Wahiba Hamzi, Tazkera Sharifi, Sadia Zaman, Lujain Alsadder, Esther Lee, Amir Hakim and Boumediene Hamzi
J. Pers. Med. 2024, 14(8), 856; https://doi.org/10.3390/jpm14080856 (registering DOI) - 12 Aug 2024
Abstract
Our research evaluates advanced artificial (AI) methodologies to enhance diagnostic accuracy in pulmonary radiography. Utilizing DenseNet121 and ResNet50, we analyzed 108,948 chest X-ray images from 32,717 patients and DenseNet121 achieved an area under the curve (AUC) of 94% in identifying the conditions of [...] Read more.
Our research evaluates advanced artificial (AI) methodologies to enhance diagnostic accuracy in pulmonary radiography. Utilizing DenseNet121 and ResNet50, we analyzed 108,948 chest X-ray images from 32,717 patients and DenseNet121 achieved an area under the curve (AUC) of 94% in identifying the conditions of pneumothorax and oedema. The model’s performance surpassed that of expert radiologists, though further improvements are necessary for diagnosing complex conditions such as emphysema, effusion, and hernia. Clinical validation integrating Latent Dirichlet Allocation (LDA) and Named Entity Recognition (NER) demonstrated the potential of natural language processing (NLP) in clinical workflows. The NER system achieved a precision of 92% and a recall of 88%. Sentiment analysis using DistilBERT provided a nuanced understanding of clinical notes, which is essential for refining diagnostic decisions. XGBoost and SHapley Additive exPlanations (SHAP) enhanced feature extraction and model interpretability. Local Interpretable Model-agnostic Explanations (LIME) and occlusion sensitivity analysis further enriched transparency, enabling healthcare providers to trust AI predictions. These AI techniques reduced processing times by 60% and annotation errors by 75%, setting a new benchmark for efficiency in thoracic diagnostics. The research explored the transformative potential of AI in medical imaging, advancing traditional diagnostics and accelerating medical evaluations in clinical settings. Full article
(This article belongs to the Special Issue Bioinformatics and Medicine)
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<p>Data Assembly Process. The diagram illustrates the comprehensive steps involved in assembling the dataset, including data collection from hospital radiology departments, anonymization by removing patient identifiers to ensure ethical compliance, initial labeling using automated natural language processing (NLP) techniques, manual verification by radiologists, and rigorous quality control processes before finalizing the dataset.</p>
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<p>Visualization of RGB data using Imshow, with RGB values normalized to the range [0, 1] for float representation. This figure illustrates how Imshow processes and displays RGB color data accurately.</p>
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<p>Detection of COVID-19 in X-ray images using convolutional neural networks (CNNs). This figure illustrates the process and results of using CNNs to identify COVID-19 related anomalies in chest X-rays, highlighting the areas of the lungs affected by the virus.</p>
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<p>Image pre-processing in Keras. This figure demonstrates the steps involved in pre-processing images using the Keras library, including resizing, normalization, and augmentation techniques to prepare the images for training in a neural network.</p>
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<p>Distribution of classes for the training dataset and the relationship between values and classes. This figure illustrates the frequency of each class within the training dataset, along with a comparison of various values against these classes to provide insights into the dataset composition and balance.</p>
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<p>Distribution of pixel intensity of an image. This figure displays the histogram of pixel intensities, illustrating the frequency of each intensity level across the image. It provides insights into the image’s contrast, brightness, and overall tonal distribution.</p>
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<p>Implementation of weight loss in neural networks. This figure demonstrates the process of incorporating weight loss functions during the training phase of neural networks to prevent overfitting and improve generalization.</p>
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<p>Training a neural network using DenseNet121. This figure illustrates the process of training a model with the DenseNet121 architecture, highlighting key steps such as data input, model configuration, and training iterations. DenseNet121 is known for its dense connectivity between layers, which can improve gradient flow and feature reuse.</p>
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<p>Visualizing learning with Grad-CAM. This figure demonstrates the use of Grad-CAM to visualize which regions of an image contribute most to the neural network’s prediction. By highlighting important areas, Grad-CAM helped in understanding and interpreting the decision-making process of the model.</p>
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<p>Image segmentation probability visualization. This figure illustrates the probability maps generated during the image segmentation process, showing the likelihood of each pixel belonging to different segments. It provided insights into the model’s confidence and accuracy in distinguishing various regions within the image.</p>
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<p>Feature Pyramid Network (FPN) architecture with ResNet module. This figure illustrates the integration of the FPN architecture with the ResNet module, demonstrating how feature maps are extracted at multiple scales and combined to improve object detection performance. The FPN enhances the model’s ability to detect objects of varying sizes by leveraging the hierarchical feature representation of ResNet.</p>
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<p>Feature extraction map on original image to feature map visualisaiton.</p>
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<p>Chest Xray potential area mark on original image to potential lung area.</p>
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<p>Class imbalance in the dataset. This figure highlights the distribution of classes within the dataset, illustrating the prevalence of class imbalance. Such imbalance can affect the performance of machine learning models by biasing predictions towards the majority class.</p>
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<p>Class frequencies in the dataset. This figure shows the frequency of each class within the dataset, illustrating the distribution and relative abundance of different classes. Understanding class frequencies is crucial for addressing class imbalance and ensuring fair and accurate model training.</p>
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<p>AUC values for the CheXNeXt model and radiologists on the dataset. This figure compares the AUC values for the CheXNeXt model and human radiologists, highlighting the performance of the deep learning model in diagnosing medical conditions from chest X-ray images relative to expert radiologists.</p>
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<p>Evaluation of the DenseNet121 model results using the ROC curve. This figure displays the ROC curve for the DenseNet121 model, illustrating the model’s performance in distinguishing between classes by plotting the true positive rate against the false positive rate at various threshold settings. The ROC curve helps assess the model’s diagnostic accuracy.</p>
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<p>Evaluation of the ResNet50 model results using the ROC curve. This figure displays the ROC curve for the ResNet50 model, illustrating the model’s performance in distinguishing between classes by plotting the true positive rate against the false positive rate at various threshold settings. The ROC curve helps assess the model’s diagnostic accuracy.</p>
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<p>Training and validation accuracy and loss for the VGG19 model. This figure presents the training and validation accuracy, as well as the loss metrics, over multiple epochs during the training of the VGG19 model. It highlights the model’s learning progress and performance, showing how well the model generalizes to unseen data and identifying potential overfitting.</p>
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<p>Results of sentiment analysis. This figure illustrates the outcomes of a sentiment analysis performed on a dataset, showcasing the distribution of positive, negative, and neutral sentiments. It highlights the model’s ability to classify text data based on emotional tone, providing insights into the overall sentiment trends within the dataset.</p>
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<p>LIME: This figure illustrates the use of LIME to explain the predictions of a machine learning model. By highlighting the most influential features, LIME provides insights into how the model makes decisions, thereby enhancing interpretability and trust in the model’s outputs.</p>
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<p>LIME Analysis for Image Data (a) on original image to LIME explanation.</p>
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<p>LIME Analysis for Image Data (b) on original image to LIME explanation.</p>
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<p>LIME Analysis for Image Data (c) on original image to LIME explanation.</p>
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<p>LIME Analysis for Image Data (d) on original image to LIME explanation.</p>
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<p>LIME Analysis for Image Data (e) on original image to LIME explanation.</p>
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<p>LIME Analysis for Image Data (f) on original image to LIME explanation.</p>
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<p>Occlusion Sensitivity Map Analysis on labeled (<b>a</b>–<b>f</b>) image data. This figure demonstrates the occlusion sensitivity map analysis applied to labeled image data. By systematically occluding different parts of the image and observing the changes in the model’s predictions, this analysis helps identify the most crucial regions that influence the model’s decision-making process.</p>
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25 pages, 5748 KiB  
Article
Sacred Space and Ritual Behaviour in Ancient Mesopotamia: A View from Tello/Girsu
by Tina Jongsma-Greenfield, Angelo Di Michele, Fatima Husain and Sébastien Rey
Humans 2024, 4(3), 239-263; https://doi.org/10.3390/humans4030015 (registering DOI) - 12 Aug 2024
Abstract
Girsu, the modern site of Tello (southern Iraq), represents one of the earliest known urban centres of the ancient world, along with Uruk, Eridu, and Ur. During the 3rd millennium BCE (3000–2000 BCE), Girsu was revered as the sanctuary of the Sumerian heroic [...] Read more.
Girsu, the modern site of Tello (southern Iraq), represents one of the earliest known urban centres of the ancient world, along with Uruk, Eridu, and Ur. During the 3rd millennium BCE (3000–2000 BCE), Girsu was revered as the sanctuary of the Sumerian heroic deity Ningirsu, who fought with supernatural beasts and made possible the introduction of irrigation and agriculture in Sumer. While much is known about the gods, their roles, and rituals inside the temples, there is little textual or archaeological evidence concerning the rituals that took place in the large open-air plazas adjacent to the temples. These areas within the sacred precinct were where the general population would gather to participate in festivals and ceremonies to honour the gods. To better understand the ancient cultic realm in southern Mesopotamia, an in-depth investigation of a favissa (ritual pit) discovered within the sacred precinct at Girsu was undertaken. The excavations recovered a large quantity of ceramics and animal remains that had been used for ritual purposes. Through the study of archaeological remains of cultic spaces at Girsu, information on ritual behaviour such as sacrificial animal slaughtering and consumption for the purpose of feasting, the types of libations provided to quench the thirst of the gods, and the distance travelled to take part in the annual festivals to pay homage to the patron god of their sacred city were explored. Analysis of the associated ceramics, cuneiform texts, and zooarchaeological remains (including stable isotope data), allowed a multi-faceted and integrative approach to better understand ceremonial behaviour and ritual feasting in this sacred city. New insights into communal and performative participation in ceremonies, especially by non-elite individuals, are generated. These data increase our knowledge not only of how Girsu’s citizens organised their sacred spaces and religious festivals, but also of how they behaved in order to satisfy the ever-demanding needs of their gods. Full article
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<p>Map of Ancient Mesopotamia with location of Tello/Girsu [<a href="#B3-humans-04-00015" class="html-bibr">3</a>] (© The Girsu Project).</p>
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<p>Spatial organisation of the sacred precinct of Girsu with ritual areas for feasting, banqueting, processing, and offering of foods surrounded by residential areas and city wall (source © The Girsu Project).</p>
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<p>Photograph showing a general view of the sacred plaza facing northwest, with a group of ritual ceramics in foreground and the sacred precinct in background. Note: the yellow flags in the background denote the locations of unexcavated favissae (source [<a href="#B11-humans-04-00015" class="html-bibr">11</a>] © The Girsu Project. Photo by Sébastien Rey).</p>
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<p>Detailed image of the top of the favissa with in situ bones and beer mugs (source © The Girsu Project. Photo by Sébastien Rey).</p>
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<p>General typology of diagnostic pottery found at Tello/Girsu.</p>
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<p>Specific types of diagnostic pottery sherds found within the favissa at Tello/Girsu.</p>
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<p>Relative percentage frequencies by size and/or taxon from A1 U.S. 22/21 at Girsu for both wild and domestic species. Miscellaneous unidentifiable fragments were not included in this particular analysis.</p>
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<p>Terracotta vessels from Area A, Girsu and Ur along with similar vessels found on libation plaques from Girsu (<b>above</b>) and Ur (<b>below</b>), Early Dynastic III [<a href="#B7-humans-04-00015" class="html-bibr">7</a>].</p>
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<p>Map of reconstructed Early Dynastic ritual processional routes and lists of offerings for Girsu/Tello and Lagash city-state [<a href="#B7-humans-04-00015" class="html-bibr">7</a>].</p>
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<p>Close-up of pottery and animal bones within the favissa deposits (source © The Girsu Project. Photo by Sébastien Rey).</p>
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<p>Image of the excavated portion of the favissa with pottery vessels and animal bones (Source © The Girsu Project. Photo by Sébastien Rey).</p>
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<p>Relative percentage frequencies of pottery types and associated illustrations from within the excavated area of the A U.S. 22/21 favissa (<span class="html-italic">n</span> = 299), see <a href="#humans-04-00015-t002" class="html-table">Table 2</a> for NISP and percentage frequency of each type.</p>
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<p>Relative percentage frequency of identifiable Pisces thorax and mammalian anterior vs. posterior limb bones (<span class="html-italic">n</span> = 131). When the mammalian body portions are categorized into the front and hind limbs there appears to be a slight preference for front versus hind limb. Note this pattern is evident as ritual behaviour especially when limbs (the best part of meat due to their high quantity of meat) are chosen for feasts or sacrifices to the gods.</p>
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<p>Line art of a cuneiform clay tablet from ancient Girsu, southern Iraq (ca. 2400 BCE) recording the inspection of goats and sheep as well as the hides of the animals that had been slaughtered [<a href="#B48-humans-04-00015" class="html-bibr">48</a>,<a href="#B49-humans-04-00015" class="html-bibr">49</a>]; DP, 248 CDIL P220898 image from CDLI contributors. 2024. Cuneiform Digital Library Initiative. <a href="https://cdli.mpiwg-berlin.mpg.de/cdli-tablet/569" target="_blank">https://cdli.mpiwg-berlin.mpg.de/cdli-tablet/569</a> (accessed on 27 June 2024).</p>
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<p>“’House of the cook” responsible for the delivery of fish to different organisations associated with the temple”. Line art of a cuneiform tablet [<a href="#B49-humans-04-00015" class="html-bibr">49</a>] from Tello/Girsu Early Dynastic III Period describing the role of each household in securing a man to provide them with fish to be sent to the temple as sacrifice [<a href="#B48-humans-04-00015" class="html-bibr">48</a>]. DP 304 CDLI P220954 image from <a href="https://cdli.mpiwg-berlin.mpg.de/" target="_blank">https://cdli.mpiwg-berlin.mpg.de/</a> (accessed on 27 June 2024).</p>
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<p>87Sr/86Sr values for Girsu samples of <span class="html-italic">Ovis</span>/<span class="html-italic">Capra</span>. Note that the blue shading denotes a local signature. Baseline data from shell and mollusc specimens from Ur and Abu Salabikh [<a href="#B52-humans-04-00015" class="html-bibr">52</a>].</p>
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14 pages, 1551 KiB  
Article
Impact of Disease Severity and Disease-Modifying Therapies on Myostatin Levels in SMA Patients
by Laurane Mackels, Virginie Mariot, Laura Buscemi, Laurent Servais and Julie Dumonceaux
Int. J. Mol. Sci. 2024, 25(16), 8763; https://doi.org/10.3390/ijms25168763 (registering DOI) - 12 Aug 2024
Abstract
Clinical trials with treatments inhibiting myostatin pathways to increase muscle mass are currently ongoing in spinal muscular atrophy. Given evidence of potential myostatin pathway downregulation in Spinal Muscular Atrophy (SMA), restoring sufficient myostatin levels using disease-modifying treatments (DMTs) might arguably be necessary prior [...] Read more.
Clinical trials with treatments inhibiting myostatin pathways to increase muscle mass are currently ongoing in spinal muscular atrophy. Given evidence of potential myostatin pathway downregulation in Spinal Muscular Atrophy (SMA), restoring sufficient myostatin levels using disease-modifying treatments (DMTs) might arguably be necessary prior to considering myostatin inhibitors as an add-on treatment. This retrospective study assessed pre-treatment myostatin and follistatin levels’ correlation with disease severity and explored their alteration by disease-modifying treatment in SMA. We retrospectively collected clinical characteristics, motor scores, and mysotatin and follistatin levels between 2018 and 2020 in 25 Belgian patients with SMA (SMA1 (n = 13), SMA2 (n = 6), SMA 3 (n = 6)) and treated by nusinersen. Data were collected prior to treatment and after 2, 6, 10, 18, and 30 months of treatment. Myostatin levels correlated with patients’ age, weight, SMA type, and motor function before treatment initiation. After treatment, we observed correlations between myostatin levels and some motor function scores (i.e., MFM32, HFMSE, 6MWT), but no major effect of nusinersen on myostatin or follistatin levels over time. In conclusion, further research is needed to determine if DMTs can impact myostatin and follistatin levels in SMA, and how this could potentially influence patient selection for ongoing myostatin inhibitor trials. Full article
(This article belongs to the Special Issue Molecular Study and Treatment of Motor Neuron Diseases)
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<p>Myostatin levels per SMA type and correlation with age and weight in nusinersen-naïve patients. (<b>A</b>) Boxplot displaying myostatin levels for SMA types with outliers indicated by dots. (<b>B</b>) Significant correlation between myostatin levels, (<b>B</b>) age, and (<b>C</b>) weight within SMA1 and SMA2. Significant results are indicated by an asterisk (*) and dots indicate outliers.</p>
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<p>Correlation of myostatin levels with motor scores and follistatin blood levels in nusinersen-naïve patients. Graphs showing the significant correlation of myostatin with (<b>A</b>) MFM32, (<b>B</b>) CHOP-INTEND, (<b>C</b>) HFMSE, (<b>D</b>) 6MWT. No significant correlation was observed between myostatin and left grip score (<b>E</b>), right grip score (<b>F</b>), HINE-2 (<b>G</b>), and follistatin (<b>H</b>). Significant results are indicated by an asterisk (*).</p>
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<p>Change in myostatin and follistatin levels from baseline in treated patients. (<b>A</b>) Change in myostatin (blue) and follistatin (red) levels over a period of 2 months with treatment by nusinersen (N = 10); (<b>B</b>) over a period of 6 months with treatment by nusinersen (N = 11); (<b>C</b>) over a period of 10 months with treatment by nusinersen (N = 9); (<b>D</b>) over a period of 18 months with treatment by nusinersen (N = 10). Full dots indicate overlapping points. Horizontal lines illustrate mean values.</p>
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<p>Association between myostatin and motor scores over time. (<b>A</b>) Line graph displaying the trend in myostatin levels following up to 30 months of treatment with nusinersen (n = 25). (<b>B</b>) Arrow graph showing the association between myostatin and MFM32, (<b>C</b>) HFMSE, and (<b>D</b>) 6MWT from baseline to 18 months of treatment with nusinersen. Arrow indicates temporality. SMA types 1, 2, and 3 are indicated in blue, beige, and red, respectively. Significant results are indicated by an asterisk (*).</p>
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11 pages, 1098 KiB  
Article
Effects of ACLY Inhibition on Body Weight Distribution: A Drug Target Mendelian Randomization Study
by Dipender Gill, Marie-Joe Dib, Rubinder Gill, Stefan R. Bornstein, Stephen Burgess and Andreas L. Birkenfeld
Genes 2024, 15(8), 1059; https://doi.org/10.3390/genes15081059 - 12 Aug 2024
Abstract
Background: Adenosine triphosphate-citrate lyase (ACLY) inhibition has proven clinically efficacious for low-density lipoprotein cholesterol (LDL-c) lowering and cardiovascular disease (CVD) risk reduction. Clinical and genetic evidence suggests that some LDL-c lowering strategies, such as 3-hydroxy-3-methylglutaryl-coenzyme A reductase (HMGCR) inhibition with statin therapy increase [...] Read more.
Background: Adenosine triphosphate-citrate lyase (ACLY) inhibition has proven clinically efficacious for low-density lipoprotein cholesterol (LDL-c) lowering and cardiovascular disease (CVD) risk reduction. Clinical and genetic evidence suggests that some LDL-c lowering strategies, such as 3-hydroxy-3-methylglutaryl-coenzyme A reductase (HMGCR) inhibition with statin therapy increase body weight and the risk of developing type 2 diabetes mellitus (T2DM). However, whether ACLY inhibition affects metabolic risk factors is currently unknown. We aimed to investigate the effects of ACLY inhibition on glycaemic and anthropometric traits using Mendelian randomization (MR). Methods: As genetic instruments for ACLY inhibition, we selected weakly correlated single-nucleotide polymorphisms at the ACLY gene associated with lower ACLY gene expression in the eQTLGen study (N = 31,684) and lower LDL-c levels in the Global Lipid Genetic Consortium study (N = 1.65 million). Two-sample Mendelian randomization was employed to investigate the effects of ACLY inhibition on T2DM risk, and glycaemic and anthropometric traits using summary data from large consortia, with sample sizes ranging from 151,013 to 806,834 individuals. Findings for genetically predicted ACLY inhibition were compared to those obtained for genetically predicted HMGCR inhibition using the same instrument selection strategy and outcome data. Results: Primary MR analyses showed that genetically predicted ACLY inhibition was associated with lower waist-to-hip ratio (β per 1 standard deviation lower LDL-c: −1.17; 95% confidence interval (CI): −1.61 to −0.73; p < 0.001) but not with risk of T2DM (odds ratio (OR) per standard deviation lower LDL-c: 0.74, 95% CI = 0.25 to 2.19, p = 0.59). In contrast, genetically predicted HMGCR inhibition was associated with higher waist-to-hip ratio (β = 0.15; 95%CI = 0.04 to 0.26; p = 0.008) and T2DM risk (OR = 1.73, 95% CI = 1.27 to 2.36, p < 0.001). The MR analyses considering secondary outcomes showed that genetically predicted ACLY inhibition was associated with a lower waist-to-hip ratio adjusted for body mass index (BMI) (β = −1.41; 95%CI = −1.81 to −1.02; p < 0.001). In contrast, genetically predicted HMGCR inhibition was associated with higher HbA1c (β = 0.19; 95%CI = 0.23 to 0.49; p < 0.001) and BMI (β = 0.36; 95%CI = 0.23 to 0.49; p < 0.001). Conclusions: Human genetic evidence supports the metabolically favourable effects of ACLY inhibition on body weight distribution, in contrast to HMGCR inhibition. These findings should be used to guide and prioritize ongoing clinical development efforts. Full article
(This article belongs to the Special Issue Genetics and Epigenetics of Metabolic Diseases)
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<p>Study design overview. Created with BioRender.com on 1 July 2024.</p>
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<p>Mendelian randomization estimates per standard deviation lower LDL-c via ACLY and HMGCR inhibition on primary and secondary outcomes.</p>
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18 pages, 5357 KiB  
Article
Impact of Non-Residential Users on the Energy Performance of Renewable Energy Communities Considering Clusterization of Consumptions
by Elisa Veronese, Luca Lauton, Grazia Barchi, Alessandro Prada and Vincenzo Trovato
Energies 2024, 17(16), 3984; https://doi.org/10.3390/en17163984 - 12 Aug 2024
Abstract
Renewable energy communities foster the users’ engagement in the energy transition, paving the way to the integration of distributed renewable energy sources. So far, the scientific literature has focused on residential users in energy communities, thus overlooking the opportunities for industrial and commercial [...] Read more.
Renewable energy communities foster the users’ engagement in the energy transition, paving the way to the integration of distributed renewable energy sources. So far, the scientific literature has focused on residential users in energy communities, thus overlooking the opportunities for industrial and commercial members. This paper seeks to bridge this gap by extending the analysis to the role of non-residential users. The proposed methodology develops an effective clustering approach targeted to actual non-residential consumption profiles. It is based on the k-means algorithm and statistical characterization based on relevant probability density function curves. The employed clusterization procedure allows for effectively reducing a sample of 49 real industrial load profiles up to 11 typical consumption curves, whilst capturing all the relevant characteristics of the initial population. Furthermore, a peer-to-peer sharing strategy is developed accounting for distributed and shared storage. Three scenarios are considered to validate the model with different shares of non-residential users, and the results are then evaluated by means of shared energy, self-consumption, and self-sufficiency indices. Moreover, the results show that the integration of a large non-residential prosumer in a REC may increase the self-sufficiency of residential members by 8.2%, self-consumption by 4.4%, and the overall shared energy by 37.3%. Therefore, the residential community consistently benefits from the presence of non-residential users, with larger users inducing more pronounced effects. Full article
(This article belongs to the Section A: Sustainable Energy)
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<p>Overview of the methodology proposed in this study.</p>
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<p>Energy fluxes controllable with the implemented control logic.</p>
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<p>REC composition in the three different scenarios: residential (on the <b>left</b>), industrial (at the <b>center</b>), and mixed (on the <b>right</b>).</p>
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<p>PCA results for both <span class="html-italic">Classes A</span> (on the <b>left</b>) and <span class="html-italic">B</span> (on the <b>right</b>). Each industry is represented by a dot, whereas the color refers to a specific cluster.</p>
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<p>Example of normalized mean daily load profiles of industries in each cluster (from 1a to 7a and from 1b to 4b) and their normalized average.</p>
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<p>Normalized mean daily load profile of the public buildings (library on the <b>left</b> and offices on the <b>right</b>) for both the working (<b>upper part</b>) and weekend days (<b>lower part</b>).</p>
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<p>Distribution of the PV production of each residential prosumer considered in the residential scenario [%]. The total PV production is divided into the amount that is self-produced (<span class="html-italic">PV selfprod</span>), directly shared (<span class="html-italic">PV for sharing</span>), used to charge the BESS (<span class="html-italic">PV to BESS</span>), shared through the BESS (<span class="html-italic">BESS for sharing</span>), and exchanged to the grid (<span class="html-italic">PV to grid</span>).</p>
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<p>Distribution of the PV production of each of the 5 residential prosumers and the industrial prosumer (rightmost bar) considered in the industrial scenario [%]. The total PV production is divided into the amount that is self-produced (<span class="html-italic">PV selfprod</span>), directly shared (<span class="html-italic">PV for sharing</span>), used to charge the BESS (<span class="html-italic">PV to BESS</span>), shared through the BESS (<span class="html-italic">BESS for sharing</span>), and exchanged to the grid (<span class="html-italic">PV to grid</span>).</p>
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<p>Distribution of the PV production of each of the 5 residential prosumers and the industrial prosumer (rightmost bar) considered in the mixed scenario [%]. The total PV production is divided into the amount that is self-produced (<span class="html-italic">PV selfprod</span>), directly shared (<span class="html-italic">PV for sharing</span>), used to charge the BESS (<span class="html-italic">PV to BESS</span>), shared through the BESS (<span class="html-italic">BESS for sharing</span>), and exchanged to the grid (<span class="html-italic">PV to grid</span>).</p>
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12 pages, 1163 KiB  
Article
The Clinical Features and Outcomes of Pseudocirrhosis in Breast Cancer
by Edward Phillips, Mantegh Sethi, Surammiya Vasanthakumar, Gina Sherpa, Stephen Johnston, Marina Parton, Emma Kipps, Nicholas C. Turner, Matthew Foxton and Alicia Okines
Cancers 2024, 16(16), 2822; https://doi.org/10.3390/cancers16162822 - 12 Aug 2024
Abstract
Pseudocirrhosis is a diffuse nodularity of the liver that radiologically mimics cirrhosis but is a distinct pathological process. It is seen almost exclusively in patients with liver metastases and may represent a response to systemic treatment. Data on the risk factors for pseudocirrhosis [...] Read more.
Pseudocirrhosis is a diffuse nodularity of the liver that radiologically mimics cirrhosis but is a distinct pathological process. It is seen almost exclusively in patients with liver metastases and may represent a response to systemic treatment. Data on the risk factors for pseudocirrhosis and outcomes are limited. In total, 170 patients with a diagnosis of breast cancer and pseudocirrhosis in a 10-year period were identified and retrospectively analysed. Data were collected on baseline patient characteristics, treatments received, and outcomes. Median time between diagnosis of liver metastases and diagnosis of pseudocirrhosis was 17.1 months (range, 0–149 months). In total, 89.4% of patients received chemotherapy between their diagnosis of breast cancer liver metastases and their diagnosis of pseudocirrhosis, most commonly a taxane (74.7%) or capecitabine (67.1%), and the median treatment lines received was 3. Median OS from first diagnosis of pseudocirrhosis was 7.6 months (95% CI: 6.1–9.6 months) and was longer in patients with HER2+ disease at 16.7 months (95% CI: 6.4–32.9 months), which was statistically significant. In our study, pseudocirrhosis occurred in the presence of liver metastases and was associated with a poor prognosis. HER2+ patients with pseudocirrhosis had a better prognosis than other subtypes, but we did not identify other significant predictors of survival. Chemotherapy was not a prerequisite for pseudocirrhosis development, although the majority of patients had received at least one line of chemotherapy before pseudocirrhosis was diagnosed. Full article
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<p>CONSORT flow diagram detailing selection of patients for analysis.</p>
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<p>Kaplan-Meier curve demonstrating survival after diagnosis of pseudocirrhosis. Median OS 7.6 months (95% CI: 6.1–9.6 months).</p>
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<p>Kaplan-Meier curves demonstrating survival after diagnosis of pseudocirrhosis by receptor subtype. Median OS for each receptor subtype was 6.6 months (95% CI: 5.1–9.2 months) for HR+/HER2−, 15.8 months (95% CI: 6.1–30.6 months) for HR+/HER2+, 33.6 months (95% CI: 3.00–37.2 months) for HR−/HER2+, and 4.4 months (95% CI: 1.8–20.0 months) for HR−/HER2−.</p>
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<p>Forest plot of hazard ratios for death with 95% confidence intervals for features of hepatic dysfunction.</p>
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9 pages, 1031 KiB  
Article
The Diagnostic Pathway of Hirschsprung’s Disease in Paediatric Patients: A Single-Centre Experience
by Annita Budzanowski, Niamh Geoghegan, Alexander Macdonald and Muhammad Choudhry
Children 2024, 11(8), 970; https://doi.org/10.3390/children11080970 (registering DOI) - 12 Aug 2024
Viewed by 54
Abstract
Background: The presenting symptoms of patients with Hirschsprung’s disease (HD) are a failure to pass meconium, abdominal distension, and bilious vomiting. The gold standard diagnosis is a rectal biopsy to confirm aganglionosis. The aim of our study was to describe the diagnostic pathway [...] Read more.
Background: The presenting symptoms of patients with Hirschsprung’s disease (HD) are a failure to pass meconium, abdominal distension, and bilious vomiting. The gold standard diagnosis is a rectal biopsy to confirm aganglionosis. The aim of our study was to describe the diagnostic pathway of Hirschsprung’s disease at our institution and document the indication for a rectal biopsy. Methods: We have performed a prospective collection of all patients who underwent a rectal biopsy to exclude HD from December 2022 until September 2023 including. The following data were collected: patient’s age, presenting symptoms, type of biopsy, failure rate, complications, and histopathological results. Results: We identified 33 patients who underwent 34 rectal biopsies at 0.6 years of age. A total of 17 patients had a rectal suction biopsy (RSB), and 17 patients underwent a partial thickness under general anaesthesia (GA). 1/17 (6%) patients had an inconclusive RSB and subsequently underwent a biopsy under GA. Constipation and chronic abdominal distension plus vomiting were the most common presenting symptoms throughout all ages. Five patients (15%) had a rectal biopsy that was positive for HD. Conclusion: A protocolised approach to the assessment of infants and children with suspected HD ensures the appropriate utilisation of invasive procedures such as biopsy. Full article
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<p>Diagnostic pathway in newborns up to 6 months of age.</p>
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<p>Diagnostic pathway in children older than 6 months of age. EUA—examination under general anaesthesia; GA—general anaesthesia, HD—Hirschsprung’s disease.</p>
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<p>Diagnostic pathway in children if HD-negative.</p>
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26 pages, 9128 KiB  
Article
AI-Based Visual Early Warning System
by Zeena Al-Tekreeti, Jeronimo Moreno-Cuesta, Maria Isabel Madrigal Garcia and Marcos A. Rodrigues
Informatics 2024, 11(3), 59; https://doi.org/10.3390/informatics11030059 - 12 Aug 2024
Viewed by 60
Abstract
Facial expressions are a universally recognised means of conveying internal emotional states across diverse human cultural and ethnic groups. Recent advances in understanding people’s emotions expressed through verbal and non-verbal communication are particularly noteworthy in the clinical context for the assessment of patients’ [...] Read more.
Facial expressions are a universally recognised means of conveying internal emotional states across diverse human cultural and ethnic groups. Recent advances in understanding people’s emotions expressed through verbal and non-verbal communication are particularly noteworthy in the clinical context for the assessment of patients’ health and well-being. Facial expression recognition (FER) plays an important and vital role in health care, providing communication with a patient’s feelings and allowing the assessment and monitoring of mental and physical health conditions. This paper shows that automatic machine learning methods can predict health deterioration accurately and robustly, independent of human subjective assessment. The prior work of this paper is to discover the early signs of deteriorating health that align with the principles of preventive reactions, improving health outcomes and human survival, and promoting overall health and well-being. Therefore, methods are developed to create a facial database mimicking the underlying muscular structure of the face, whose Action Unit motions can then be transferred to human face images, thus displaying animated expressions of interest. Then, building and developing an automatic system based on convolution neural networks (CNN) and long short-term memory (LSTM) to recognise patterns of facial expressions with a focus on patients at risk of deterioration in hospital wards. This research presents state-of-the-art results on generating and modelling synthetic database and automated deterioration prediction through FEs with 99.89% accuracy. The main contributions to knowledge from this paper can be summarized as (1) the generation of visual datasets mimicking real-life samples of facial expressions indicating health deterioration, (2) improvement of the understanding and communication with patients at risk of deterioration through facial expression analysis, and (3) development of a state-of-the-art model to recognize such facial expressions using a ConvLSTM model. Full article
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Graphical abstract

Graphical abstract
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<p>Facial expression areas that reveal if the patient is under deterioration or not. (<b>a</b>) The left avatar expresses a neutral expression, which is bounded by the blue rectangles. (<b>b</b>) The right avatar reveals deterioration status in the final stage, which is bounded by the red rectangles.</p>
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<p>Five classes along with the combination of Action Units.</p>
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<p>Frames of video sample after utilizing FOMM to transfer facial expressions from avatars to real facial images.</p>
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<p>Samples of five classes of facial frames representing five classes.</p>
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<p>Facial frames samples for each class after pre-processing using face mesh as a face detection technique.</p>
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<p>Number and ratio of samples in each class for the whole dataset. (<b>a</b>) The total number of samples is represented by column chart. (<b>b</b>) The ratio of samples in each class.</p>
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<p>Number of samples in training and test dataset. (<b>a</b>) The number of samples in the training dataset. (<b>b</b>) The number of samples in the test dataset.</p>
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<p>Number of training samples before and after oversampling method. (<b>a</b>) Number of samples of training dataset before oversampling. (<b>b</b>) Number of samples of training dataset after oversampling.</p>
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<p>Structure of ConvLSTM [<a href="#B40-informatics-11-00059" class="html-bibr">40</a>].</p>
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<p>The proposed model architecture.</p>
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<p>(<b>a</b>) Evaluation metrics of model performance. Accuracy of the proposed model. (<b>b</b>) Precision of the proposed model. (<b>c</b>) Recall of the proposed model.</p>
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<p>Loss, Mean Square Error and Mean Absolute Error. (<b>a</b>) Loss of the predicted model. (<b>b</b>) Mean Square Error of the predicted model. (<b>c</b>) Mean Absolute Error.</p>
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<p>Confusion matrix.</p>
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<p>Evaluation of the model.</p>
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<p>Classification report.</p>
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<p>Evaluating model by Receiver Operating Characteristics Curve (ROC) Precision-Recall Curve. (<b>a</b>) ROC. (<b>b</b>) Precision-Recall Curve.</p>
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<p>The percentage of accuracy of model prediction for unseen data for different classes. (<b>a</b>) Accuracy of prediction of unseen data predicted as Class FD1. (<b>b</b>) Accuracy of prediction unseen data predicted as Class FD2-L. (<b>c</b>) Accuracy of prediction of unseen data predicted as Class FD2-R. (<b>d</b>) Accuracy of prediction of unseen data predicted as Class FD3-L. (<b>e</b>) Accuracy of prediction of unseen data predicted as Class FD3-R.</p>
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<p>The percentage of accuracy of model prediction for unseen data for different classes. (<b>a</b>) Accuracy of prediction of unseen data predicted as Class FD1. (<b>b</b>) Accuracy of prediction unseen data predicted as Class FD2-L. (<b>c</b>) Accuracy of prediction of unseen data predicted as Class FD2-R. (<b>d</b>) Accuracy of prediction of unseen data predicted as Class FD3-L. (<b>e</b>) Accuracy of prediction of unseen data predicted as Class FD3-R.</p>
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<p>The percentage of accuracy of model prediction for unseen data for different classes. (<b>a</b>) Accuracy of prediction of unseen data predicted as Class FD1. (<b>b</b>) Accuracy of prediction unseen data predicted as Class FD2-L. (<b>c</b>) Accuracy of prediction of unseen data predicted as Class FD2-R. (<b>d</b>) Accuracy of prediction of unseen data predicted as Class FD3-L. (<b>e</b>) Accuracy of prediction of unseen data predicted as Class FD3-R.</p>
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19 pages, 2777 KiB  
Article
Fabric Defect Detection in Real World Manufacturing Using Deep Learning
by Mariam Nasim, Rafia Mumtaz, Muneer Ahmad and Arshad Ali
Information 2024, 15(8), 476; https://doi.org/10.3390/info15080476 - 11 Aug 2024
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Abstract
Defect detection is very important for guaranteeing the quality and pricing of fabric. A considerable amount of fabric is discarded as waste because of defects, leading to substantial annual losses. While manual inspection has traditionally been the norm for detection, adopting an automatic [...] Read more.
Defect detection is very important for guaranteeing the quality and pricing of fabric. A considerable amount of fabric is discarded as waste because of defects, leading to substantial annual losses. While manual inspection has traditionally been the norm for detection, adopting an automatic defect detection scheme based on a deep learning model offers a timely and efficient solution for assessing fabric quality. In real-time manufacturing scenarios, datasets lack high-quality, precisely positioned images. Moreover, both plain and printed fabrics are being manufactured in industries simultaneously; therefore, a single model should be capable of detecting defects in all kinds of fabric. So training a robust deep learning model that detects defects in fabric datasets generated during production with high accuracy and lower computational costs is required. This study uses an indigenous dataset directly sourced from Chenab Textiles, providing authentic and diverse images representative of actual manufacturing conditions. The dataset is used to train a computationally faster but lighter state-of-the-art network, i.e., YOLOv8. For comparison, YOLOv5 and MobileNetV2-SSD FPN-Lite models are also trained on the same dataset. YOLOv8n achieved the highest performance, with a mAP of 84.8%, precision of 0.818, and recall of 0.839 across seven different defect classes. Full article
(This article belongs to the Special Issue Machine Learning and Artificial Intelligence with Applications)
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<p>Some images from Chenab dataset.</p>
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<p>Overview of proposed methodology.</p>
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<p>Graphs produced during training of YOLOv8.</p>
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<p>Graphs produced during training of YOLOv5.</p>
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<p>Loss graphs produced during training of the ssdmobilenet-fpnlite.</p>
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<p>Comparison of results produced by different models.</p>
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<p>Some results of YOLOv8 trained model on test images.</p>
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