The 2023 MDPI Annual Report has
been released!
 
17 pages, 39975 KiB  
Article
A Hybrid Learning-Architecture for Improved Brain Tumor Recognition
by Jose Dixon, Oluwatunmise Akinniyi, Abeer Abdelhamid, Gehad A. Saleh, Md Mahmudur Rahman and Fahmi Khalifa
Algorithms 2024, 17(6), 221; https://doi.org/10.3390/a17060221 (registering DOI) - 21 May 2024
Abstract
The accurate classification of brain tumors is an important step for early intervention. Artificial intelligence (AI)-based diagnostic systems have been utilized in recent years to help automate the process and provide more objective and faster diagnosis. This work introduces an enhanced AI-based architecture [...] Read more.
The accurate classification of brain tumors is an important step for early intervention. Artificial intelligence (AI)-based diagnostic systems have been utilized in recent years to help automate the process and provide more objective and faster diagnosis. This work introduces an enhanced AI-based architecture for improved brain tumor classification. We introduce a hybrid architecture that integrates vision transformer (ViT) and deep neural networks to create an ensemble classifier, resulting in a more robust brain tumor classification framework. The analysis pipeline begins with preprocessing and data normalization, followed by extracting three types of MRI-derived information-rich features. The latter included higher-order texture and structural feature sets to harness the spatial interactions between image intensities, which were derived using Haralick features and local binary patterns. Additionally, local deeper features of the brain images are extracted using an optimized convolutional neural networks (CNN) architecture. Finally, ViT-derived features are also integrated due to their ability to handle dependencies across larger distances while being less sensitive to data augmentation. The extracted features are then weighted, fused, and fed to a machine learning classifier for the final classification of brain MRIs. The proposed weighted ensemble architecture has been evaluated on publicly available and locally collected brain MRIs of four classes using various metrics. The results showed that leveraging the benefits of individual components of the proposed architecture leads to improved performance using ablation studies. Full article
(This article belongs to the Special Issue Algorithms for Computer Aided Diagnosis)
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20 pages, 2041 KiB  
Review
Phytonanotherapy for the Treatment of Metabolic Dysfunction-Associated Steatotic Liver Disease
by Livhuwani P. Nendouvhada, Nicole R. S. Sibuyi, Adewale O. Fadaka, Samantha Meyer, Abram M. Madiehe, Mervin Meyer and Kwazikwakhe B. Gabuza
Int. J. Mol. Sci. 2024, 25(11), 5571; https://doi.org/10.3390/ijms25115571 (registering DOI) - 21 May 2024
Abstract
Metabolic dysfunction-associated steatotic liver disease (MASLD), previously known as nonalcoholic fatty liver disease, is a steatotic liver disease associated with metabolic syndrome (MetS), especially obesity, hypertension, diabetes, hyperlipidemia, and hypertriglyceridemia. MASLD in 43–44% of patients can progress to metabolic dysfunction-associated steatohepatitis (MASH), and [...] Read more.
Metabolic dysfunction-associated steatotic liver disease (MASLD), previously known as nonalcoholic fatty liver disease, is a steatotic liver disease associated with metabolic syndrome (MetS), especially obesity, hypertension, diabetes, hyperlipidemia, and hypertriglyceridemia. MASLD in 43–44% of patients can progress to metabolic dysfunction-associated steatohepatitis (MASH), and 7–30% of these cases will progress to liver scarring (cirrhosis). To date, the mechanism of MASLD and its progression is not completely understood and there were no therapeutic strategies specifically tailored for MASLD/MASH until March 2024. The conventional antiobesity and antidiabetic pharmacological approaches used to reduce the progression of MASLD demonstrated favorable peripheral outcomes but insignificant effects on liver histology. Alternatively, phyto-synthesized metal-based nanoparticles (MNPs) are now being explored in the treatment of various liver diseases due to their unique bioactivities and reduced bystander effects. Although phytonanotherapy has not been explored in the clinical treatment of MASLD/MASH, MNPs such as gold NPs (AuNPs) and silver NPs (AgNPs) have been reported to improve metabolic processes by reducing blood glucose levels, body fat, and inflammation. Therefore, these actions suggest that MNPs can potentially be used in the treatment of MASLD/MASH and related metabolic diseases. Further studies are warranted to investigate the feasibility and efficacy of phytonanomedicine before clinical application. Full article
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10 pages, 214 KiB  
Review
Gastrointestinal Perforation with Blunt Abdominal Trauma in Children
by Victoriya Staab, Srividya Naganathan, Margaret McGuire, Jamie M. Pinto and Harpreet Pall
Children 2024, 11(6), 612; https://doi.org/10.3390/children11060612 (registering DOI) - 21 May 2024
Abstract
Gastrointestinal tract perforation is uncommon in children, accounting for <10% of cases of blunt abdominal trauma. Diagnosis of bowel perforation in children can be challenging due to poor diagnostic imaging accuracy. Intra-abdominal free air is found only in half of the children with [...] Read more.
Gastrointestinal tract perforation is uncommon in children, accounting for <10% of cases of blunt abdominal trauma. Diagnosis of bowel perforation in children can be challenging due to poor diagnostic imaging accuracy. Intra-abdominal free air is found only in half of the children with bowel perforation. Ultrasound findings are nonspecific and suspicious for perforation in only two-thirds of cases. A computer tomography (CT) scan has a sensitivity and specificity of 50% and 95%, respectively. Surgical decisions should be made based on clinical examination despite normal CT results. Management of bowel perforation in children includes primary repair in 50–70% and resection with anastomosis in 20–40% of cases. Full article
(This article belongs to the Special Issue Advances in Gastrointestinal Surgery in Children)
19 pages, 15633 KiB  
Systematic Review
Dual-Task vs. Single-Task Gait Training to Improve Spatiotemporal Gait Parameters in People with Parkinson’s Disease: A Systematic Review and Meta-Analysis
by Elisabetta Sarasso, Marco Pietro Parente, Federica Agosta, Massimo Filippi and Davide Corbetta
Brain Sci. 2024, 14(5), 517; https://doi.org/10.3390/brainsci14050517 (registering DOI) - 20 May 2024
Abstract
Background: People with Parkinson’s disease (pwPD) present alterations of spatiotemporal gait parameters that impact walking ability. While preliminary studies suggested that dual-task gait training improves spatiotemporal gait parameters, it remains unclear whether dual-task gait training specifically improves dual-task gait performance compared to single-task [...] Read more.
Background: People with Parkinson’s disease (pwPD) present alterations of spatiotemporal gait parameters that impact walking ability. While preliminary studies suggested that dual-task gait training improves spatiotemporal gait parameters, it remains unclear whether dual-task gait training specifically improves dual-task gait performance compared to single-task gait training. The aim of this review is to assess the effect of dual-task training relative to single-task gait training on specific gait parameters during dual-task tests in pwPD. Methods: We conducted a systematic review and meta-analysis of randomized controlled trials (RCTs), searching three electronic databases. Two reviewers independently selected RCTs, extracted data, and applied the Cochrane risk-of-bias tool for randomized trials (Version 2) and the GRADE framework for assessing the certainty of evidence. The primary outcomes were dual-task gait speed, stride length, and cadence. Secondary outcomes included dual-task costs on gait speed, balance confidence, and quality of life. Results: We included 14 RCTs (548 patients). Meta-analyses showed effects favoring dual-task training over single-task training in improving dual-task gait speed (standardized mean difference [SMD] = 0.48, 95% confidence interval [CI] = 0.20–0.77; 11 studies; low certainty evidence), stride length (mean difference [MD] = 0.09 m, 95% CI = 0.04–0.14; 4 studies; very low certainty evidence), and cadence (MD = 5.45 steps/min, 95% CI = 3.59–7.31; 5 studies; very low certainty evidence). We also found a significant effect of dual-task training over single-task training on dual-task cost and quality of life, but not on balance confidence. Conclusions: Our findings support the use of dual-task training relative to single-task training to improve dual-task spatiotemporal gait parameters in pwPD. Further studies are encouraged to better define the features of dual-task training and the clinical characteristics of pwPD to identify better responders. Full article
(This article belongs to the Special Issue Updates in Parkinson's Disease)
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24 pages, 469 KiB  
Article
Time-Varying Function Matrix Projection Synchronization of Caputo Fractional-Order Uncertain Memristive Neural Networks with Multiple Delays via Mixed Open Loop Feedback Control and Impulsive Control
by Hongguang Fan, Yue Rao, Kaibo Shi and Hui Wen
Fractal Fract. 2024, 8(5), 301; https://doi.org/10.3390/fractalfract8050301 - 20 May 2024
Abstract
This paper shows solicitude for the generalized projective synchronization of Caputo fractional-order uncertain memristive neural networks (FOUMNNs) with multiple delays. By extending the constant scale factor to the time-varying function matrix, we establish an extraordinary synchronization mode called time-varying function matrix projection synchronization [...] Read more.
This paper shows solicitude for the generalized projective synchronization of Caputo fractional-order uncertain memristive neural networks (FOUMNNs) with multiple delays. By extending the constant scale factor to the time-varying function matrix, we establish an extraordinary synchronization mode called time-varying function matrix projection synchronization (TFMPS), which is a generalized version of traditional matrix projection synchronization, modified projection synchronization, complete synchronization, and anti-synchronization. To achieve the goal of TFMPS, we design a novel mixed controller including the open loop feedback control and impulsive control, which employs the state information in the time-delayed interval and the sampling information at the impulse instants. It has a prominent advantage that impulse intervals are not restricted by time delays. To establish the connection between the error system and the auxiliary system, a generalized fractional-order comparison theorem with time-varying coefficients and impulses is established. Applying the stability theory, the comparison theorem, and the Laplace transform, new synchronization criteria of FOUMNNs are acquired under the mixed impulsive control schemes, and the derived synchronization theorem and corollary can effectively expand the correlative synchronization achievements of fractional-order systems. Full article
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20 pages, 7371 KiB  
Article
Push-Out Analysis on the Shear Performance of a New Type of Bellow-Sleeved Stud
by Disheng Zou, Qingtian Su, Fei Wu, Zhiping Lin and Peiran Li
Buildings 2024, 14(5), 1483; https://doi.org/10.3390/buildings14051483 (registering DOI) - 20 May 2024
Abstract
For continuous steel–concrete composite girder bridges based on the post-combined method, the conventional rectangular group studs contribute to the isolation of the steel girder and the concrete slab before prestressing, leading to the majority of prestress forces being introduced to the concrete slab. [...] Read more.
For continuous steel–concrete composite girder bridges based on the post-combined method, the conventional rectangular group studs contribute to the isolation of the steel girder and the concrete slab before prestressing, leading to the majority of prestress forces being introduced to the concrete slab. However, rectangular-group stud holes cause the prestress forces to be unevenly distributed. In this study, a new type of bellow-sleeved stud (BSS) was developed to mitigate the weakening effects of rectangular group stud holes on the slab. A steel corrugated sleeve with a diameter of 60 mm was employed to cover the stud, which served as an internal formwork to prevent the concrete from bonding with the root of the stud. After prestressing was complete, the steel sleeve was filled with ultra-high-performance concrete (UHPC) to create a reliable combination between the concrete slab and the steel girder. To investigate the shear performance of this new type of connection, eight push-out test specimens were designed, and finite-element models were built. This study drew a comparison between the BSS and the ordinary headed stud (OHS). The research findings suggested that the BSS is subjected to less bending–shear coupling and offers a 4.5% increase in shear strength and a 31.9% increase in shear stiffness compared with the OHS. The study also analyzed the structural parameters influencing the shear performance of the BSS. It is found that the steel sleeve of the BSS has a negative effect on shear performance, but this can be mitigated by infusing high-strength material into the sleeve. Furthermore, the study examined the effect of construction quality on shear performance and suggested that sleeve deviation and grout leakage considerably reduced the shear performance of the BSS. Accordingly, strict control over the construction quality of the BSS is necessary. Full article
(This article belongs to the Special Issue Advances in Steel–Concrete Composite Structures)
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25 pages, 3407 KiB  
Review
Radiation Damage Mechanisms and Research Status of Radiation-Resistant Optical Fibers: A Review
by Jicong Li, Qi Chen, Jia Zhou, Zhi Cao, Tianchi Li, Fang Liu, Zhongyuan Yang, Shangwen Chang, Keyuan Zhou, Yuzhou Ming, Taihong Yan and Weifang Zheng
Sensors 2024, 24(10), 3235; https://doi.org/10.3390/s24103235 - 20 May 2024
Abstract
In recent years, optical fibers have found extensive use in special environments, including high-energy radiation scenarios like nuclear explosion diagnostics and reactor monitoring. However, radiation exposure, such as X-rays, gamma rays, and neutrons, can compromise fiber safety and reliability. Consequently, researchers worldwide are [...] Read more.
In recent years, optical fibers have found extensive use in special environments, including high-energy radiation scenarios like nuclear explosion diagnostics and reactor monitoring. However, radiation exposure, such as X-rays, gamma rays, and neutrons, can compromise fiber safety and reliability. Consequently, researchers worldwide are focusing on radiation-resistant fiber optic technology. This paper examines optical fiber radiation damage mechanisms, encompassing ionization damage, displacement damage, and defect centers. It also surveys the current research on radiation-resistant fiber optic design, including doping and manufacturing process improvements. Ultimately, it summarizes the effectiveness of various approaches and forecasts the future of radiation-resistant optical fibers. Full article
(This article belongs to the Special Issue Specialty Optical Fibers: Advance and Sensing Application)
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12 pages, 1602 KiB  
Article
Development of a Web Application for Simulating Plasma Drug Concentrations in Patients with Zolpidem Intoxication
by Hwa Jun Cha, Sungpil Han, Kwan Cheol Pak and Hyungsub Kim
Pharmaceutics 2024, 16(5), 689; https://doi.org/10.3390/pharmaceutics16050689 (registering DOI) - 20 May 2024
Abstract
Zolpidem is a widely prescribed hypnotic Z-drug used to treat short-term insomnia. However, a growing number of individuals intentionally overdose on these drugs. This study aimed to develop a predictive tool for physicians to assess patients with zolpidem overdose. A population pharmacokinetic (PK) [...] Read more.
Zolpidem is a widely prescribed hypnotic Z-drug used to treat short-term insomnia. However, a growing number of individuals intentionally overdose on these drugs. This study aimed to develop a predictive tool for physicians to assess patients with zolpidem overdose. A population pharmacokinetic (PK) model was established using digitized data obtained from twenty-three healthy volunteers after a single oral administration of zolpidem. Based on the final PK model, a web application was developed using open-source R packages such as rxode2, nonmem2rx, and shiny. The final model was a one-compartment model with first-order absorption and elimination with PK parameters, including clearance (CL, 16.9 L/h), absorption rate constant (Ka, 5.41 h−1), volume of distribution (Vd, 61.7 L), and lag time (ALAG, 0.394 h). Using the established population PK model in the current study, we developed a web application that enables users to simulate plasma zolpidem concentrations and visualize their profiles. This user-friendly web application may provide essential clinical information to physicians, ultimately helping in the management of patients with zolpidem intoxication. Full article
(This article belongs to the Special Issue Population Pharmacokinetics and Its Clinical Applications)
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18 pages, 942 KiB  
Article
Make-or-Buy Policy Decision in Maintenance Planning for Mobility: A Multi-Criteria Approach
by Tommaso Ortalli, Andrea Di Martino, Michela Longo and Dario Zaninelli
Logistics 2024, 8(2), 55; https://doi.org/10.3390/logistics8020055 (registering DOI) - 20 May 2024
Abstract
Background: The ongoing technical innovation is fully involving transportation sector, converting the usual mass-transit system toward a sustainable mobility. Make-or-buy decision are usually adopted to assess different solutions in terms of costs-benefits to put in place strategic choices regarding in-house production or [...] Read more.
Background: The ongoing technical innovation is fully involving transportation sector, converting the usual mass-transit system toward a sustainable mobility. Make-or-buy decision are usually adopted to assess different solutions in terms of costs-benefits to put in place strategic choices regarding in-house production or from an external supplier. This can also be reflected on maintenance operations, thus replicating a similar approach to transport companies involved. Method: A decision-making model by means of a multi-criteria analysis can lead make-or-buy choices adapted to maintenance. A brief introduction into the actual mobility context is provided, evaluating global and national trends with respect to the mobility solutions offered. Then, a focus is set on maintenance approaches in mobility sector and the need of a make-or-buy decision process is considered. The decision-making path is developed through a multi-criteria framework based on eigenvector weighing assessment, where different Key Performance Indicators (KPIs) are identified and exploited to assess the maintenance approach at stake. Results: A comparison among different scenarios considered helped in identify the solution offered to the transport operator. In particular, for the case study of interest a −35% decrease in maintenance specific cost and −44% in cost variability were found. Reliability of the fleet was kept at an acceptable level compared to the reference in-house maintenance (≥90%) while an increase in the Mean Time Between Failure was observed. Conclusions: For the purposes of a small company, the method can address the choice of outsourcing maintenance as the best. Finally, a general trend is then extrapolated from the analysis performed, in order to constitute a decision guideline. The research can benefit from further analysis to test and validate that the selected approach is effective from the perspective of transport operator. Full article
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9 pages, 235 KiB  
Article
Grounding Intelligibility, Safeguarding Mystery: A Neoclassical Reading of Ernan McMullin’s Legacy
by Amerigo Barzaghi
Religions 2024, 15(5), 625; https://doi.org/10.3390/rel15050625 (registering DOI) - 20 May 2024
Abstract
This paper suggests a “neoclassical” reading of Ernan McMullin’s thought on science and theology. McMullin’s Augustinian convictions on God and the God–world relation coincide with those of some prominent scholars from two renowned schools of neo-scholastic philosophy of the twentieth century in Louvain [...] Read more.
This paper suggests a “neoclassical” reading of Ernan McMullin’s thought on science and theology. McMullin’s Augustinian convictions on God and the God–world relation coincide with those of some prominent scholars from two renowned schools of neo-scholastic philosophy of the twentieth century in Louvain and Milan. The school of Milan, thanks to the work of some disciples of its leading figure, Amato Masnovo, developed a neoclassical version of neo-scholasticism, articulating a fundamental theory of knowledge, as well as an essential, rigorous path to God. We recall the main tenets of a neoclassical path to God, and we interpret this path as a possible contribution to the science–theology dialogue, in line with McMullin’s Augustinism. A neoclassical approach to science and theology, with its rediscovery and reactualization of some ideas of classic philosophy in an interdisciplinary context, grounds the intelligibility of the universe and safeguards its mystery. Full article
17 pages, 5988 KiB  
Article
Optimizing Active Disturbance Rejection Control for a Stubble Breaking and Obstacle Avoiding Control System
by Huibin Zhu, Tao Huang, Lizhen Bai and Wenkai Zhang
Agriculture 2024, 14(5), 786; https://doi.org/10.3390/agriculture14050786 (registering DOI) - 20 May 2024
Abstract
In order to improve the obstacle avoidance control performance and anti-interference ability of a stubble breaking device of a no-tillage planter, a back-propagation neural network (BPNN)-optimized fuzzy active disturbance rejection control (ADRC) controller was designed to optimize the control performance of a servo [...] Read more.
In order to improve the obstacle avoidance control performance and anti-interference ability of a stubble breaking device of a no-tillage planter, a back-propagation neural network (BPNN)-optimized fuzzy active disturbance rejection control (ADRC) controller was designed to optimize the control performance of a servo motor. Firstly, a negative feedback mathematical model was established for the obstacle avoidance control system. Then, the nonlinear state error feedback (NLSEF) parameters in the fuzzy ADRC were intelligently optimized by the BPNN algorithm. In this way, a fuzzy ADRC controller based on BPNN optimization was formed to optimize the control process of a servo motor. Matlab/Simulink (R2022b) was used to complete the simulation model design and parameter adjustment. Consequently, the response time was 0.089 s using the BPNN fuzzy ADRC controller, which was shorter than the 0.303 s of the ADRC controller and the 0.100 s of the fuzzy ADRC controller. The overshoot was 0.1% using a BPNN fuzzy ADRC controller, which was less than the 2% of the ADRC controller and the 1% of the fuzzy ADRC controller. After noise signal interference was introduced into the control system, the regression steady state time of the BPNN fuzzy ADRC controller was 0.22 s, which was shorter than the 0.56 s of the ADRC controller and the 0.45 s of the fuzzy ADRC controller. A hardware-in-the-loop simulation experimental platform of the obstacle avoidance control system was constructed. The experiment results show that the servo motor control system has a fast dynamic response, small steady-state error and strong anti-interference ability for obstacle avoidance at the target height. Then, the control system error was within the allowable range. The servo motor control effect of the BPNN fuzzy ADRC was better than the ADRC and fuzzy ADRC. This optimized servo motor control method can provide a reference for improving the obstacle avoidance control effect problem of no-tillage seeders in stubble breaking operations on rocky desertification areas. Full article
(This article belongs to the Section Agricultural Technology)
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28 pages, 5849 KiB  
Article
TSANN-TG: Temporal–Spatial Attention Neural Networks with Task-Specific Graph for EEG Emotion Recognition
by Chao Jiang, Yingying Dai, Yunheng Ding, Xi Chen, Yingjie Li and Yingying Tang
Brain Sci. 2024, 14(5), 516; https://doi.org/10.3390/brainsci14050516 - 20 May 2024
Abstract
Electroencephalography (EEG)-based emotion recognition is increasingly pivotal in the realm of affective brain–computer interfaces. In this paper, we propose TSANN-TG (temporal–spatial attention neural network with a task-specific graph), a novel neural network architecture tailored for enhancing feature extraction and effectively integrating temporal–spatial features. [...] Read more.
Electroencephalography (EEG)-based emotion recognition is increasingly pivotal in the realm of affective brain–computer interfaces. In this paper, we propose TSANN-TG (temporal–spatial attention neural network with a task-specific graph), a novel neural network architecture tailored for enhancing feature extraction and effectively integrating temporal–spatial features. TSANN-TG comprises three primary components: a node-feature-encoding-and-adjacency-matrices-construction block, a graph-aggregation block, and a graph-feature-fusion-and-classification block. Leveraging the distinct temporal scales of features from EEG signals, TSANN-TG incorporates attention mechanisms for efficient feature extraction. By constructing task-specific adjacency matrices, the graph convolutional network with an attention mechanism captures the dynamic changes in dependency information between EEG channels. Additionally, TSANN-TG emphasizes feature integration at multiple levels, leading to improved performance in emotion-recognition tasks. Our proposed TSANN-TG is applied to both our FTEHD dataset and the publicly available DEAP dataset. Comparative experiments and ablation studies highlight the excellent recognition results achieved. Compared to the baseline algorithms, TSANN-TG demonstrates significant enhancements in accuracy and F1 score on the two benchmark datasets for four types of cognitive tasks. These results underscore the significant potential of the TSANN-TG method to advance EEG-based emotion recognition. Full article
(This article belongs to the Special Issue Neural Network in Computational Neuroscience)
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20 pages, 1743 KiB  
Review
The Therapeutic Potential of Harpagophytum procumbens and Turnera subulata and Advances in Nutraceutical Delivery Systems in Neurodegenerative Diseases
by Antonio Carlos Vital Júnior, Mikaelly Batista da Silva, Shênia Santos Monteiro and Matheus Augusto de Bittencourt Pasquali
Pharmaceuticals 2024, 17(5), 660; https://doi.org/10.3390/ph17050660 (registering DOI) - 20 May 2024
Abstract
This review article covers the therapeutic potential of the plants Harpagophytum procumbens and Turnera subulata in the treatment of neurodegenerative diseases. Despite the recognition of their beneficial properties, there is notable shortage of specific clinical and in vitro studies on these species regarding [...] Read more.
This review article covers the therapeutic potential of the plants Harpagophytum procumbens and Turnera subulata in the treatment of neurodegenerative diseases. Despite the recognition of their beneficial properties, there is notable shortage of specific clinical and in vitro studies on these species regarding neurodegenerative diseases. Compounds such as harpagosides and vite-xin-2-O-rhamnoside, found in Harpagophytum procumbens and Turnera subulata, respectively, as well as other antioxidants and anti-inflammatory agents, are associated with mechanisms of action that involve reducing oxidative stress and modulating the inflammatory response, indicating their therapeutic potential in these pathologies. Additionally, the use of nutraceuticals derived from medicinal plants has emerged as a promising approach, offering natural therapeutic alternatives. However, the pressing need for studies focusing on the pharmacokinetics, safety, and pharmacological interactions of these extracts for the treatment of neurodegenerative diseases is emphasized. This review also evaluated advances in nutraceutical delivery systems, highlighting technological innovations that can optimize the precise delivery of these compounds to patients. Such findings highlight the gaps in the study of these plants for the treatment of neurodegenerative diseases and, at the same time, the potential for opening new perspectives in the treatment of neurodegenerative diseases, providing expectations for innovative solutions in this critical domain of medicine. Full article
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10 pages, 1664 KiB  
Article
Osteocalcin: A Potential Marker of Peripheral Arterial Stiffness in Hypertensive Patients
by Yung-Hsuan Wang, Chien-Hao Hsiao, Ji-Hung Wang and Bang-Gee Hsu
Medicina 2024, 60(5), 835; https://doi.org/10.3390/medicina60050835 (registering DOI) - 20 May 2024
Abstract
Background and Objectives: Brachial–ankle pulse wave velocity (baPWV) is an established independent risk factor for cardiovascular events, cardiovascular mortality, and all-cause mortality. Osteocalcin (OC) is recognized to be associated with vascular function. The present study assessed the correlation between serum OC levels [...] Read more.
Background and Objectives: Brachial–ankle pulse wave velocity (baPWV) is an established independent risk factor for cardiovascular events, cardiovascular mortality, and all-cause mortality. Osteocalcin (OC) is recognized to be associated with vascular function. The present study assessed the correlation between serum OC levels and peripheral arterial stiffness (PAS) measured through baPWV in hypertensive patients. Materials and Methods: Fasting blood samples were collected from 120 hypertensive participants. The serum total OC levels were measured using a commercial enzyme-linked immunosorbent assay kit, whereas the baPWV device was used to detect PAS. The PAS group had left or right baPWV > 18.0 m/s. Results: Among the hypertensive patients, 24 (20.0%) were classified into the PAS group. The PAS group exhibited a significantly older age (p = 0.011), higher prevalence of diabetes (p = 0.010), systolic blood pressure (p = 0.019), levels of serum fasting glucose (p = 0.003), blood urea nitrogen (p = 0.024), creatinine (p = 0.004), C-reactive protein (p = 0.007), OC (p = 0.002), and lower estimated glomerular filtration rate (p = 0.004) than the non-PAS group. Age (odds ratio [OR]: 1.076, 95% CI: 1.004–1.153, p = 0.037) and serum OC level (OR: 1.797, 95% confidence interval (CI): 1.077–3.000, p = 0.025) were independent factors linked to PAS in hypertensive patients in the multivariate logistic regression analysis. Conclusions: Serum OC levels and older age are positively associated with PAS in hypertensive patients. Full article
(This article belongs to the Section Urology & Nephrology)
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20 pages, 4703 KiB  
Article
Investigation of Carbon Fiber Reinforced Polymer Concrete Reinforcement Ageing Using Microwave Infrared Thermography Method
by Barbara Szymanik, Sam Ang Keo, Franck Brachelet and Didier Defer
Appl. Sci. 2024, 14(10), 4331; https://doi.org/10.3390/app14104331 - 20 May 2024
Abstract
This study presents the utilization of the microwave infrared thermography (MIRT) technique to identify and analyze the defects in the carbon-fiber-reinforced polymer (CFRP) composite reinforcement of concrete specimens. At first, a set of numerical models was created, comprising the broadband pyramidal horn antenna [...] Read more.
This study presents the utilization of the microwave infrared thermography (MIRT) technique to identify and analyze the defects in the carbon-fiber-reinforced polymer (CFRP) composite reinforcement of concrete specimens. At first, a set of numerical models was created, comprising the broadband pyramidal horn antenna and the analyzed specimen. The utilization of the system operating at a power of 1000 W in a continuous mode, operating at frequency of 2.45 GHz, was analyzed. The specimen under examination comprised a compact concrete slab that was covered with an adhesive layer and, thereafter, topped with a layer of CFRP. An air gap represented a defect at the interface between the concrete and the CFRP within the adhesive layer. In the modeling stage, the study investigated three separate scenarios—a sample with no defects, a sample with a defect located at the center, and a sample with a numerous additional random defects located at the rim of the CFRP matte—to analyze the effect of the natural reinforcement degradation in this area. The next phase of the study involved conducting experiments to confirm the results obtained from numerical modeling. In the experiments, the concrete sample aged for 10 years with the defect in the center and naturally developed defects at the CFRP rim was used. The study employed numerical modeling to explore the phenomenon of microwave heating in complex structures. The aim was to assess the chosen antenna design and identify the most effective experimental setup. These conclusions were subsequently confirmed through experimentation. The observations made during the heating process were particularly remarkable since they deviated from earlier studies that solely conducted measurements of the sample post-heating phase. The findings demonstrate that MIRT has the capacity to be employed as a technique for detecting flaws in concrete structures reinforced with CFRP. Full article
16 pages, 311 KiB  
Article
Novel Estimations of Hadamard-Type Integral Inequalities for Raina’s Fractional Operators
by Merve Coşkun, Çetin Yildiz and Luminiţa-Ioana Cotîrlă
Fractal Fract. 2024, 8(5), 302; https://doi.org/10.3390/fractalfract8050302 - 20 May 2024
Abstract
In the present paper, utilizing a wide class of fractional integral operators (namely the Raina fractional operator), we develop novel fractional integral inequalities of the Hermite–Hadamard type. With the help of the well-known Riemann–Liouville fractional operators, s-type convex functions are derived using [...] Read more.
In the present paper, utilizing a wide class of fractional integral operators (namely the Raina fractional operator), we develop novel fractional integral inequalities of the Hermite–Hadamard type. With the help of the well-known Riemann–Liouville fractional operators, s-type convex functions are derived using the important results. We also note that some of the conclusions of this study are more reasonable than those found under certain specific conditions, e.g., s=1, λ=α, σ(0)=1, and w=0. In conclusion, the methodology described in this article is expected to stimulate further research in this area. Full article
(This article belongs to the Special Issue Fractional Integral Inequalities and Applications, 2nd Edition)
32 pages, 18049 KiB  
Article
The Challenges of Blood Sample Delivery via Drones in Urban Environment: A Feasibility Study through Specific Operation Risk Assessment Methodology
by Sara Molinari, Riccardo Patriarca and Marco Ducci
Drones 2024, 8(5), 210; https://doi.org/10.3390/drones8050210 - 20 May 2024
Abstract
In recent years, Unmanned Aircraft System (UAS) usage in the medical sector as an alternative to traditional means of goods transport has grown significantly. Even though the reduced response time achieved with UASs can be lifesaving in critical situations, their usage must comply [...] Read more.
In recent years, Unmanned Aircraft System (UAS) usage in the medical sector as an alternative to traditional means of goods transport has grown significantly. Even though the reduced response time achieved with UASs can be lifesaving in critical situations, their usage must comply with technological constraints such as range, speed and capacity, while minimizing potential risks. In this paper, the feasibility of a drone operation dedicated to the transport of blood samples in an urban area is studied through a safety risk analysis. The assessment utilizes the Specific Operation Risk Assessment (SORA) framework, in line with current European regulations, and extends it to define flight trajectories with minimal risk. A case study in the Helsinki urban area is used as a reference, with an exemplary case of commercial drone transportation of blood samples between the Töölö and Malmi Hospitals. By leveraging the drone performance capabilities and minimizing the risk for people on the ground, this approach demonstrates that medical delivery using drones in densely populated urban environments remains challenging. Nonetheless, it argues that the proposed method can enhance risk awareness and support the planning of feasible operations. Full article
(This article belongs to the Special Issue Flight Control and Collision Avoidance of UAVs)
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22 pages, 299 KiB  
Article
An International Data-Based Systems Agency IDA: Striving for a Peaceful, Sustainable, and Human Rights-Based Future
by Peter G. Kirchschlaeger
Philosophies 2024, 9(3), 73; https://doi.org/10.3390/philosophies9030073 - 20 May 2024
Abstract
Digital transformation and “artificial intelligence (AI)”—which can more adequately be called “data-based systems (DS)”—comprise ethical opportunities and risks. Therefore, it is necessary to identify precisely ethical opportunities and risks in order to be able to benefit sustainably from the opportunities and to master [...] Read more.
Digital transformation and “artificial intelligence (AI)”—which can more adequately be called “data-based systems (DS)”—comprise ethical opportunities and risks. Therefore, it is necessary to identify precisely ethical opportunities and risks in order to be able to benefit sustainably from the opportunities and to master the risks. The UN General Assembly has recently adopted a resolution aiming for ‘safe, secure and trustworthy artificial intelligence systems’. It is now urgent to implement and build on the UN General Assembly Resolution. Allowing humans and the planet to flourish sustainably in peace and guaranteeing globally that human dignity is respected not only offline but also online, in the digital sphere, and in the domain of DS, requires two policy measures: (1) human rights-based data-based systems (HRBDS): HRBDS means that human rights serve as the basis of digital transformation and DS. (2) International Data-Based Systems Agency (IDA): IDA should be established at the UN as a platform for cooperation in the field of digital transformation and DS, fostering human rights, security, and peaceful uses of DS, as well as a global supervisory institution and regulatory authority in digital transformation and DS. The establishment of IDA is realistic because humanity has already shown in its past that we are able to not always “blindly” pursue the technically possible but also to limit ourselves to what is technically feasible when humanity and the planet are at stake. For instance, humans researched the field of nuclear technology, developed the atomic bomb, and detonated it several times. Nonetheless, the same humans limited research and development in the field of nuclear technology to prevent even worse consequences by establishing the International Atomic Energy Agency (IAEA) at the UN. Full article
(This article belongs to the Special Issue The Ethics of Modern and Emerging Technology)
33 pages, 46215 KiB  
Article
The Necessity and Goodness of Animals in Sijistānī’s Kashf Al-Maḥjūb
by Peter Adamson and Hanif Amin Beidokhti
Philosophies 2024, 9(3), 72; https://doi.org/10.3390/philosophies9030072 - 20 May 2024
Abstract
The Neoplatonic notion of “emanation” implies a required progression through hierarchical stages, originating from the highest principle (the One or God) and cascading down through a series of principles. While this process is deemed necessary, it is also inherently good, even “choiceworthy”, aligning [...] Read more.
The Neoplatonic notion of “emanation” implies a required progression through hierarchical stages, originating from the highest principle (the One or God) and cascading down through a series of principles. While this process is deemed necessary, it is also inherently good, even “choiceworthy”, aligning with the identification of the first principle with the Good. Plotinus, a prominent Neoplatonist, emphasizes the beauty and goodness of the sensible world, governed by divine providence. This perspective, transmitted through Arabic adaptations of Plotinus, influences Islamic philosophers too. This paper delves into the thought of the Ismāʿīlī philosopher Abū Yaʿqūb al-Sijistānī (d. after. 349/971), exploring the interplay of necessity and goodness in his cosmology, with a focus on non-human animals. Sijistānī’s Persian Uncovering the Veiled provides a unique perspective on animals, presenting them as both necessary unfoldings of the universal intellect and inherently good beings with intrinsic value. The paper concludes with an appendix featuring an improved edition and English translation of relevant passages. Full article
(This article belongs to the Special Issue Ancient and Medieval Theories of Soul)
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15 pages, 257 KiB  
Article
Making the Memory Book: War-Time Loss and Memorialization through Ephemera
by Bruce Scates
Genealogy 2024, 8(2), 64; https://doi.org/10.3390/genealogy8020064 - 20 May 2024
Abstract
This article explores the way a family fashioned a memorial to a son ‘taken by the war’. It focuses on the Robert’s collection in Melbourne, Australia’s largest bound collection of war time ephemera, and the making of what was called ‘Frank’s Memory Book’. [...] Read more.
This article explores the way a family fashioned a memorial to a son ‘taken by the war’. It focuses on the Robert’s collection in Melbourne, Australia’s largest bound collection of war time ephemera, and the making of what was called ‘Frank’s Memory Book’. It argues that families asserted ownership over their dead, crafting different modes of memorialization to authorized modes of remembrance, considers the way communities of mourners were brought together and highlights tensions between private loss and public memory. The making of ephemera is examined at length as is the part material culture plays in libraries and archives. Full article
16 pages, 240 KiB  
Article
Adoption in the Era of Secrecy: Practical and Ethical Challenges Facing Adult Adoptees in the Search for Birth Families
by Patricia Robinson
Genealogy 2024, 8(2), 63; https://doi.org/10.3390/genealogy8020063 - 20 May 2024
Abstract
This article explores findings from research into the impact of adoption throughout the life course of adults who were adopted in the era of secrecy, the 1940s–1970s. A narrative approach was used to explore their reflections, and semi-structured interviews were undertaken with 11 [...] Read more.
This article explores findings from research into the impact of adoption throughout the life course of adults who were adopted in the era of secrecy, the 1940s–1970s. A narrative approach was used to explore their reflections, and semi-structured interviews were undertaken with 11 adults. The findings were then analysed through the lens of the Life Course Perspective. Previous studies on adoption have largely explored the outcomes of searching for birth family members, but few have focused on how adoptees went about this, the challenges they encountered, the decisions made and what happened as they began to dismantle layers of secrecy surrounding their adoption. For most of the participants, resources such as genealogical websites and particular guidance were not available at the time they were searching for birth information or attempting to make contact with birth families. Their accounts highlighted how social workers with potential birth information did not appear to be able to consider the broader emotional impact this might entail for adoptees. Initial meetings were described by some adoptees as hurdles to be overcome, and little birth information was given. Some continued to search for birth relatives without support, using random methods to gain contact. The ways in which adults went about their search sometimes appeared to suggest a lack of consideration or awareness on their part of the possible impact on others involved. In reality, they were faced with obstacles and barriers as they attempted to learn about their origins. Their stories provide a valuable insight into how adult adoptees sought to dismantle layers of secrecy, highlighting the complex, challenging and isolated situation they found themselves in as they searched for birth information and birth families, as well as the ethical challenges and dilemmas they had to negotiate in order to do so. Full article
(This article belongs to the Special Issue Ethics and Family History: Challenges, Dilemmas and Responsibilities)
14 pages, 1413 KiB  
Article
Genetic Mapping for Leaf Shape and Leaf Size in Non-Heading Chinese Cabbage by a RIL Population
by Tianzi Zhao, Aimei Bai, Xinya Wang, Feixue Zhang, Miaomiao Yang, Yuhui Wang, Tongkun Liu, Xilin Hou and Ying Li
Horticulturae 2024, 10(5), 529; https://doi.org/10.3390/horticulturae10050529 - 20 May 2024
Abstract
Leaves are the predominant photosynthetic and edible organs in non-heading Chinese cabbage (Brassica campestris ssp. chinensis, NHCC), contributing significantly to yield, appearance, and desirability to consumers. However, the genetic basis of leaf shape and size in non-heading Chinese cabbage remains unclear. [...] Read more.
Leaves are the predominant photosynthetic and edible organs in non-heading Chinese cabbage (Brassica campestris ssp. chinensis, NHCC), contributing significantly to yield, appearance, and desirability to consumers. However, the genetic basis of leaf shape and size in non-heading Chinese cabbage remains unclear. In this study, we developed a RIL population using ‘Maertou’, with slender leaves and narrow petioles, and ‘Suzhouqing’, with oval leaves and wide petioles, to construct a genetic linkage map and detect QTLs. To obtain stable and reliable QTLs, the 11 leaf-related traits, including the leaf length, leaf width, and fresh weight of the lamina and petiole and the thickness of petiole was observed on two locations—while the leaf shape, petiole shape, index of lamina/petiole length, and index of petiole fresh weight were calculated based on 7 leaf-related traits. QTL mapping illustrated that a total of 27 QTLs for leaf-related traits were preliminarily detected. The candidate genes were annotated and several genes involved in leaf development and leaf shape appeared in the overlapping regions of multiple loci, such as KRP2, GRF4, ARGOS, and SAUR9. This study lays the foundation for further exploration of the genetic mechanisms and development of effective molecular markers for leaf shape and size in NHCC. Full article
(This article belongs to the Section Vegetable Production Systems)
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24 pages, 3846 KiB  
Article
Insights into Medieval Grape Cultivation in Al-Andalus: Morphometric, Domestication, and Multivariate Analysis of Vitis vinifera Seed Types
by Javier Valera, Diego Rivera, Gonzalo Matilla-Séiquer, Diego José Rivera-Obón, Carlos-Alvar Ocete, Rafael Ocete, Julio Navarro, Pedro Jiménez, Rafael González, Juan Antonio Ramírez, José María Moreno, José Javier Martínez and Concepción Obón
Horticulturae 2024, 10(5), 530; https://doi.org/10.3390/horticulturae10050530 - 20 May 2024
Abstract
Understanding the origins and evolution of modern grapevine varieties in the Iberian Peninsula and western Europe necessitates an examination of the proportions of Vitis vinifera cultivars, their relationships with wild grapevine populations, and the utilization of seedless cultivars in al-Andalus. Employing morphometric studies, [...] Read more.
Understanding the origins and evolution of modern grapevine varieties in the Iberian Peninsula and western Europe necessitates an examination of the proportions of Vitis vinifera cultivars, their relationships with wild grapevine populations, and the utilization of seedless cultivars in al-Andalus. Employing morphometric studies, domestication indices, multivariate analysis, and Bayesian hypothesis testing, this study investigates several distinct seed types identified in materials from Roman and medieval deposits. These seeds exhibit a spectrum from highly domesticated to purely wild. Our findings reveal the predominance of Proles Occidentalis Negrul, and the presence of feral-like grapevines associated with Proles Euphratica. Additionally, we observe the continuous presence of wild grapevines related to Vitis sylvestris CC Gmelin throughout the studied period. Seeds exhibiting intermediate characteristics are documented, alongside the identification of “stenosperms”, suggesting anomalies in seed formation. Notably, the presence of Vitis vinifera raisins “stenospermocarpics” of the sultana type is suggested, potentially elucidating the absence of table grapes and raisins of the Proles Orientalis Negrul in the archaeological record, despite frequent mentions by medieval agronomy writers from al-Andalus. Full article
(This article belongs to the Section Viticulture)

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