The 2023 MDPI Annual Report has
been released!
 
19 pages, 12359 KiB  
Review
Recent Advances in Self-Assembled Molecular Application in Solar Cells
by Linkun Zhong, Chuangping Liu, Shi Lai, Bing’e Li, Baihong Zheng and Xiaoli Zhang
Nanomaterials 2024, 14(9), 779; https://doi.org/10.3390/nano14090779 (registering DOI) - 30 Apr 2024
Abstract
Perovskite solar cells (PSCs) have attracted much attention due to their low cost, high efficiency, and solution processability. With the development of various materials in perovskite solar cells, self-assembled monolayers (SAMs) have rapidly become an important factor in improving power conversion efficiency (PCE) [...] Read more.
Perovskite solar cells (PSCs) have attracted much attention due to their low cost, high efficiency, and solution processability. With the development of various materials in perovskite solar cells, self-assembled monolayers (SAMs) have rapidly become an important factor in improving power conversion efficiency (PCE) due to their unique physical and chemical properties and better energy level matching. In this topical review, we introduced important categories of self-assembled molecules, energy level modulation strategies, and various characteristics of self-assembled molecules. In addition, we focused on reviewing the application of self-assembled molecules in solar cells, and explained the changes that self-assembled molecules bring to PSCs by introducing the mechanism and effect of self-assembled molecules. Finally, we also elaborated on the challenges currently faced by self-assembled molecules and provided prospects for their applications in other optoelectronic devices. Full article
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3 pages, 157 KiB  
Book Review
Book Review: Climate, Psychology, and Change: Reimagining Psychotherapy in an Era of Global Disruption and Climate Anxiety; Bednarek, S., Ed.; North Atlantic Books: Berkeley, CA, USA, 2024; ISBN: 979-8889840817
by Andrew Haddon Kemp
Challenges 2024, 15(2), 23; https://doi.org/10.3390/challe15020023 (registering DOI) - 30 Apr 2024
Abstract
Climate, Psychology and Change” offers a profound exploration of the psychological ramifications of the climate and ecological emergency (CEE), proposing a paradigm shift in psychotherapy to better support individuals and communities grappling with environmental distress. The book critiques the prevailing hyper-individualized [...] Read more.
Climate, Psychology and Change” offers a profound exploration of the psychological ramifications of the climate and ecological emergency (CEE), proposing a paradigm shift in psychotherapy to better support individuals and communities grappling with environmental distress. The book critiques the prevailing hyper-individualized and neoliberal societal framework, advocating for a decolonized, systemic psychotherapeutic approach that emphasizes interconnectedness across species and that challenges human exceptionalism. It outlines four psychological phases that individuals may experience in their environmental consciousness journey, epiphany, immersion, crisis, and resolution, highlighting their non-linear and systemic nature. This work underscores the importance of understanding distress within its broader social and ecological contexts and addresses the profound inequalities and injustices exacerbated by the CEE. With contributions from diverse psychological and non-traditional backgrounds, it introduces concepts like ‘ubuntu’, advocating for community-focused resilience practices. The book calls for a re-evaluation of psychotherapeutic practices to include communal and nature-connected approaches, offering innovative solutions like climate cafes and social dreaming. It presents a critical yet hopeful vision for the role of psychotherapy in navigating the challenges of the CEE, urging a rethinking of our relationship with the planet and each other, making it an essential read for those seeking to align psychotherapeutic practice with the realities of our changing world. Full article
17 pages, 2196 KiB  
Article
Biological Response Following the Systemic Injection of PEG–PAMAM–Rhodamine Conjugates in Zebrafish
by Beatriz Custódio, Patrícia Carneiro, Joana Marques, Victoria Leiro, Ana M. Valentim, Mafalda Sousa, Sofia D. Santos, José Bessa and Ana P. Pêgo
Pharmaceutics 2024, 16(5), 608; https://doi.org/10.3390/pharmaceutics16050608 (registering DOI) - 30 Apr 2024
Abstract
Numerous therapeutic and diagnostic approaches used within a clinical setting depend on the administration of compounds via systemic delivery. Biomaterials at the nanometer scale, as dendrimers, act as delivery systems by improving cargo bioavailability, circulation time, and the targeting of specific tissues. Although [...] Read more.
Numerous therapeutic and diagnostic approaches used within a clinical setting depend on the administration of compounds via systemic delivery. Biomaterials at the nanometer scale, as dendrimers, act as delivery systems by improving cargo bioavailability, circulation time, and the targeting of specific tissues. Although evaluating the efficacy of pharmacological agents based on nanobiomaterials is crucial, conducting toxicological assessments of biomaterials is essential for advancing clinical translation. Here, a zebrafish larvae model was explored to assess the biocompatibility of poly(amido amine) (PAMAM), one of the most exploited dendrimers for drug delivery. We report the impact of a systemic injection of polyethylene glycol (PEG)-modified G4 PAMAM conjugated with rhodamine (Rho) as a mimetic drug (PEG–PAMAM–Rho) on survival, animal development, inflammation, and neurotoxicity. A concentration- and time-dependent effect was observed on mortality, developmental morphology, and innate immune system activation (macrophages). Significant effects in toxicological indicators were reported in the highest tested concentration (50 mg/mL PEG–PAMAM–Rho) as early as 48 h post-injection. Additionally, a lower concentration of PEG–PAMAM–Rho (5 mg/mL) was found to be safe and subsequently tested for neurotoxicity through behavioral assays. In accordance, no significative signs of toxicity were detected. In conclusion, the dose response of the animal was assessed, and the safe dosage for future use in theragnostics was defined. Additionally, new methodologies were established that can be adapted to further studies in toxicology using other nanosystems for systemic delivery. Full article
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16 pages, 2199 KiB  
Article
Widespread Circulation of Tick-Borne Viruses in Virginia—Evidence of Exposure to Heartland, Bourbon, and Powassan Viruses in Wildlife and Livestock
by Ahmed Garba, Jennifer Riley, Kevin K. Lahmers and Gillian Eastwood
Microorganisms 2024, 12(5), 899; https://doi.org/10.3390/microorganisms12050899 (registering DOI) - 30 Apr 2024
Abstract
Emerging tick-borne viruses such as Powassan virus (POWV), Bourbon virus (BRBV), and Heartland virus (HRTV), whilst rare, can cause severe health problems in humans. While limited clinical cases have been reported thus far in Virginia, the presence of tick-borne viruses poses a serious [...] Read more.
Emerging tick-borne viruses such as Powassan virus (POWV), Bourbon virus (BRBV), and Heartland virus (HRTV), whilst rare, can cause severe health problems in humans. While limited clinical cases have been reported thus far in Virginia, the presence of tick-borne viruses poses a serious health threat, and the extent of their prevalence in Virginia is unknown. Here, we sought evidence of POWV, BRBV, and HRTV exposure in Virginia via a serological assessment of wildlife and livestock. Wildlife in Virginia were found to be seropositive against POWV (18%), BRBV (8%), and HRTV (5%), with western and northern regions of the state having a higher prevalence. Multiple wildlife species were shown to have been exposed to each virus examined. To a lesser extent, cattle also showed exposure to tick-borne viruses, with seroprevalences of 1%, 1.2%, and 8% detected in cattle against POWV, BRBV, and HRTV, respectively. Cross-reactivity against other known circulating mosquito-borne flaviviruses was ruled out. In conclusion, there is widespread exposure to tick-borne viruses in western and northern Virginia, with exposure to a diverse range of both domestic and wild animal populations. Our study provides the first confirmation that HRTV is circulating in the Commonwealth. These findings strengthen the existing evidence of emerging tick-borne viruses in Virginia and highlight the need for public health vigilance to avoid tick bites. Full article
(This article belongs to the Special Issue Ticks and Tick-Borne Diseases in Animals 2.0)
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14 pages, 2788 KiB  
Article
Candida Non-albicans and Non-auris Causing Invasive Candidiasis in a Fourth-Level Hospital in Colombia: Epidemiology, Antifungal Susceptibility, and Genetic Diversity
by Juan Camilo Hernández-Pabón, Bryan Tabares, Óscar Gil, Carlos Lugo-Sánchez, Aldair Santana, Alfonso Barón and Carolina Firacative
J. Fungi 2024, 10(5), 326; https://doi.org/10.3390/jof10050326 (registering DOI) - 30 Apr 2024
Abstract
Increasingly common and associated with healthcare settings, Candida infections are very important, since some species of this genus can develop antifungal resistance. We contribute data on the epidemiology, antifungal susceptibility, and genetic diversity of Candida non-albicans and non-auris affecting critically ill [...] Read more.
Increasingly common and associated with healthcare settings, Candida infections are very important, since some species of this genus can develop antifungal resistance. We contribute data on the epidemiology, antifungal susceptibility, and genetic diversity of Candida non-albicans and non-auris affecting critically ill patients in a fourth-level hospital in Colombia. Ninety-seven isolates causing invasive infections, identified by conventional methods over 18 months, were studied. Data from patients affected by these yeasts, including sex, age, comorbidities, treatment, and outcome, were analysed. The antifungal susceptibility of the isolates was determined, and the ribosomal DNA was sequenced. Candida parapsilosis, Candida tropicalis, Candida glabrata, Candida dubliniensis, and Candida guilliermondii caused 48.5% of all cases of invasive candidiasis. The species were mainly recovered from blood (50%). Patients were mostly men (53.4%), between 18 days and 93 years old, hospitalized in the ICU (70.7%). Overall mortality was 46.6%, but patients in the ICU, using antibiotics, with diabetes mellitus, or with C. glabrata infections were more likely to die. Resistant isolates were identified in C. parapsilosis, C. tropicalis, and C. glabrata. This study provides epidemiological data for the surveillance of emerging Candida species, highlighting their clinical impact, as well as the emergence of antifungal resistance and clonal dispersal. Full article
(This article belongs to the Special Issue Fungal Infections in Non-neutropenic Patients)
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22 pages, 3564 KiB  
Article
Temporal Shifts in E-Scooter Rider Perspectives: A Longitudinal Investigation in Riyadh, Saudi Arabia
by Mohammed Almannaa, Asim Alyahya, Huthaifa I. Ashqar and Mohammed Elhenawy
Sustainability 2024, 16(9), 3759; https://doi.org/10.3390/su16093759 (registering DOI) - 30 Apr 2024
Abstract
Shared electric scooters (e-scooters) have rapidly gained prominence as a first/last-mile mobility solution globally, with over 66,000 systems operating in 88 cities across 21 countries in 2019. While recognized for their flexibility, accessibility, and environmental benefits, concerns such as safety, parking issues, and [...] Read more.
Shared electric scooters (e-scooters) have rapidly gained prominence as a first/last-mile mobility solution globally, with over 66,000 systems operating in 88 cities across 21 countries in 2019. While recognized for their flexibility, accessibility, and environmental benefits, concerns such as safety, parking issues, and infrastructural challenges accompany the operation of shared e-scooter systems. This research investigates the evolving perceptions of e-scooter users in Riyadh, Saudi Arabia, comparing pre-survey results with a recent study following the official deployment of e-scooters as a transportation mode in 2022. The analysis reveals significant shifts in user behavior, preferences, and perceptions. The findings indicate increased familiarity with e-scooters, heightened usage rates, and notable changes in domestic e-scooter use. Furthermore, the study identifies variations in willingness to use e-scooters across genders. A notable shift is observed in riders’ perceptions, transforming from viewing e-scooters primarily as entertainment tools to embracing them as a reliable mode of transportation. The results show that the percentage of female respondents using e-scooters increased from 3% to 13%, representing over four times the post-survey numbers. Additionally, the percentage of individuals perceiving e-scooters as safe decreased from 28.2% in the pre-survey to 14.9% in the current survey (post-survey) among those who had used e-scooters. The regression analysis demonstrates a historical uptrend in the utilization of e-scooters, juxtaposed with a discernible decline projected for forthcoming usage (odds ratio [OR] = 0.74). Intriguingly, there is evidence indicating an enhancement of riders’ confidence towards e-scooters, as reflected by an augmented perception of safety (OR = 1.48). Full article
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15 pages, 8718 KiB  
Article
Refinement of Norrbin Model via Correlations between Dimensionless Cross-Flow Coefficient and Hydrodynamic Derivatives
by Guoshuai Li, Yifan Chen, Bingzheng Yan and Xianku Zhang
J. Mar. Sci. Eng. 2024, 12(5), 752; https://doi.org/10.3390/jmse12050752 (registering DOI) - 30 Apr 2024
Abstract
To develop a simplified and highly accurate ship motion model, this study thoroughly investigated the relationship between the dimensionless cross-flow coefficient and the four hydrodynamic derivatives of the Norrbin model. Eight different types of ships were simulated to explore the impact of dimensionless [...] Read more.
To develop a simplified and highly accurate ship motion model, this study thoroughly investigated the relationship between the dimensionless cross-flow coefficient and the four hydrodynamic derivatives of the Norrbin model. Eight different types of ships were simulated to explore the impact of dimensionless cross-flow coefficients and individual hydrodynamic derivatives on the ship’s turning circle. A set of precise formulas is proposed to depict the interplay between these variables. The simulation outcomes indicate that the average deviation in the agreement between the turning circles produced by adjusting the dimensionless cross-flow coefficient and those predicted by modifying the four hydrodynamic derivatives was only 2.70%. Furthermore, the similarities between the two circles and the sea trail were significantly higher at 91.45% and 92.87% compared with the original Norrbin model’s accuracy of 78.12%. Adjusting the dimensionless cross-flow coefficients enabled the rapid identification of a curve that closely mirrored the sea trail. This research aimed to improve the accuracy of the Norrbin model and resolve issues related to determining the magnification of the hydrodynamic derivatives, laying a robust foundation for subsequent studies and applications in relevant domains. Full article
(This article belongs to the Special Issue Optimal Maneuvering and Control of Ships—2nd Edition)
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13 pages, 16159 KiB  
Case Report
Electrochemotherapy in Spine Metastases: A Case Series Focused on Technical Aspects, Surgical Strategies and Results
by Andrea Angelini, Alberto D’Amico, Stefania Paolilli, Riccardo Signori, Giovanni Baldin, Giuseppe Di Rubbo, Luca Denaro and Pietro Ruggieri
Diagnostics 2024, 14(9), 936; https://doi.org/10.3390/diagnostics14090936 (registering DOI) - 30 Apr 2024
Abstract
Metastases are complications of primary tumors due to prolonged cancer survival and have become an important issue for oncological patients and the most frequent cause of death and disability. Bone metastases occur at a later stage of cancer disease, and the spine is [...] Read more.
Metastases are complications of primary tumors due to prolonged cancer survival and have become an important issue for oncological patients and the most frequent cause of death and disability. Bone metastases occur at a later stage of cancer disease, and the spine is the most frequent site. To date, the aim of the treatment of metastases remains to be the control of disease and provide a satisfactory quality of life. The decision making of treatment is influenced by several factors such as the status of the primary disease, the number of metastases, site involvement, and the performance status of the patients. For this reason, the treatment of metastases is challenging and undergoes constant development. Therefore, alternative techniques with respect to surgery, which is the first option but not always practicable, and radiochemotherapy are attractive. Lately, electrochemotherapy has emerged as an innovative method for treating various primary and metastatic solid tumors, showing promising outcomes in terms of inducing tumor tissue necrosis and alleviating symptoms. This technique uses electric pulses to increase the uptake of chemotherapy by tumor cells. Despite the initial enthusiasm and good results in the treatment of bone tumors, relatively few papers have described its use in spine metastases. Therefore, we conducted a systemic review of this intriguing topic while also reporting our experience in the use of electrochemotherapy for the treatment of spine metastases. Full article
(This article belongs to the Special Issue Diagnosis of Spinal Tumors: 3rd Edition)
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4 pages, 154 KiB  
Editorial
Editorial for Special Issue on Biosensors for Biomedical and Environmental Applications
by Antonella Battisti
Micromachines 2024, 15(5), 607; https://doi.org/10.3390/mi15050607 (registering DOI) - 30 Apr 2024
Abstract
A sensor is typically defined as a device able to transform a physical quantity of interest into a different kind of signal that can be easily measured and recorded [...] Full article
(This article belongs to the Special Issue Biosensors for Biomedical and Environmental Applications)
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15 pages, 7349 KiB  
Article
New Insight into Electric Force in Metal and the Quadratic Electrical Resistivity Law of Metals at Low Temperatures
by Vilius Palenskis
Metals 2024, 14(5), 526; https://doi.org/10.3390/met14050526 (registering DOI) - 30 Apr 2024
Abstract
Considering that Einstein’s relation between the diffusion coefficient and the drift mobility of free randomly moving charge carriers in homogeneous materials including metals is always valid, it is shown that the effective electric force acting on free electrons in metal depends on the [...] Read more.
Considering that Einstein’s relation between the diffusion coefficient and the drift mobility of free randomly moving charge carriers in homogeneous materials including metals is always valid, it is shown that the effective electric force acting on free electrons in metal depends on the ratio between the kinetic free electron energy at the Fermi surface to the classical particle energy 3 kT/2. The electrical resistivity of elemental metals dependence on very low temperatures has the quadratic term, which has been explained by electron–electron scattering. In this paper, it is shown that the quadratic term of the electrical resistivity at low temperatures is caused by scattering of the free randomly moving electrons by electronic defects due to linear effective free electron scattering cross-section dependence on temperature, but not by electron–electron scattering. Full article
(This article belongs to the Section Computation and Simulation on Metals)
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15 pages, 1567 KiB  
Article
The Evaluation of Sustainable Development Projects in Marginal Areas: An A’WOT Approach
by Rubina Canesi and Chiara D’Alpaos
Land 2024, 13(5), 601; https://doi.org/10.3390/land13050601 (registering DOI) - 30 Apr 2024
Abstract
The increasing urbanization trend, projected to reach 70% of the global population residing in cities by 2050, underscores the pivotal role of cities in achieving the Sustainable Development Goals (SDGs) set by the 2030 Agenda for Sustainable Development (UN, 2015) and combating climate [...] Read more.
The increasing urbanization trend, projected to reach 70% of the global population residing in cities by 2050, underscores the pivotal role of cities in achieving the Sustainable Development Goals (SDGs) set by the 2030 Agenda for Sustainable Development (UN, 2015) and combating climate change. Nonetheless, the 2023 report by the United Nations Human Settlements Programme (UN Habitat) reveals an alarming gap in achieving SDG 11 “Sustainable cities and communities” by 2030. This gap highlights the urgent need for transformative shifts in urban policies and investments to prevent cities from becoming centers of global disparities, including socio-economic inequalities, digital divide, and spatial fragmentation, particularly in marginal areas. Marginal areas suffer indeed from conditions of sub-optimality in planning capacity, valuable decision-making, and project implementation. The inadequate planning, management, and governance of marginal areas, coupled with suboptimal investments, can severely compromise their socioeconomic condition. Planning efforts frequently fall short in achieving long-term sustainability goals due to localized and short-sighted decision-making processes, particularly evident in marginal areas. It is crucial, though, to support their public administrations in the achievement of the SDG 11 targets and in their responsive participation in the calls for the allocation of public funding. In this paper, we provide a theoretical and methodological approach to evaluate urban regeneration projects in marginal areas. In detail, we develop an A’WOT approach, which combines a Strengths, Weaknesses, Opportunities, and Threats (SWOT) analysis to the Analytic Hierarchy Process (AHP), to rank alternative urban development projects. Full article
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13 pages, 3006 KiB  
Article
Immunological Response against Breast Lineage Cells Transfected with Human Papillomavirus (HPV)
by Daffany Luana Santos, Bianca de França São Marcos, Georon Ferreira de Sousa, Leonardo Carvalho de Oliveira Cruz, Bárbara Rafaela da Silva Barros, Mariane Cajuba de Britto Lira Nogueira, Talita Helena de Araújo Oliveira, Anna Jessica Duarte Silva, Vanessa Emanuelle Pereira Santos, Cristiane Moutinho Lagos de Melo and Antonio Carlos de Freitas
Viruses 2024, 16(5), 717; https://doi.org/10.3390/v16050717 (registering DOI) - 30 Apr 2024
Abstract
Breast cancer is the most common neoplasm worldwide. Viral infections are involved with carcinogenesis, especially those caused by oncogenic Human Papillomavirus (HPV) genotypes. Despite the detection of HPV in breast carcinomas, the virus’s activity against this type of cancer remains controversial. HPV infection [...] Read more.
Breast cancer is the most common neoplasm worldwide. Viral infections are involved with carcinogenesis, especially those caused by oncogenic Human Papillomavirus (HPV) genotypes. Despite the detection of HPV in breast carcinomas, the virus’s activity against this type of cancer remains controversial. HPV infection promotes remodeling of the host’s immune response, resulting in an immunosuppressive profile. This study assessed the individual role of HPV oncogenes in the cell line MDA-MB-231 transfected with the E5, E6, and E7 oncogenes and co-cultured with peripheral blood mononuclear cells. Immunophenotyping was conducted to evaluate immune system modulation. There was an increase in CD4+ T cell numbers when compared with non-transfected and transfected MDA-MB-231, especially in the Treg profile. Pro-inflammatory intracellular cytokines, such as IFN-γ, TNF-α, and IL-17, were impaired by transfected cells, and a decrease in the cytolytic activity of the CD8+ and CD56+ lymphocytes was observed in the presence of HPV oncogenes, mainly with E6 and E7. The E6 and E7 oncogenes decrease monocyte expression, activating the expected M1 profile. In the monocytes found, a pro-inflammatory role was observed according to the cytokines released in the supernatant. In conclusion, the MDA-MB-231 cell lineage transfected with HPV oncogenes can downregulate the number and function of lymphocytes and monocytes. Full article
(This article belongs to the Special Issue Immune Responses to Papillomavirus Infections)
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19 pages, 372 KiB  
Article
Determinants of Accounting Information Systems Success: The Case of the Greek Hotel Industry
by Ioannis E. Diavastis, Konstantinos A. Chrysafis and Georgia C. Papadopoulou
Int. J. Financial Stud. 2024, 12(2), 42; https://doi.org/10.3390/ijfs12020042 (registering DOI) - 30 Apr 2024
Abstract
Accounting information systems (AIS) are primarily designed to convert financial data into usable financial and management information. Their effectiveness or success, which shows the extent to which the requirements of their users are satisfied, is an essential factor in decision making. Previous research [...] Read more.
Accounting information systems (AIS) are primarily designed to convert financial data into usable financial and management information. Their effectiveness or success, which shows the extent to which the requirements of their users are satisfied, is an essential factor in decision making. Previous research has found that user satisfaction is a particularly widely utilized and indicative measure of information system (IS) success. In this setting, the success or failure of an AIS is a crucial issue for all companies since a particular IS cannot be appropriate for everyone, especially in the case of accounting software that has to satisfy the requirements of its users. Furthermore, given the hotel industry’s information-intensive and competitive character, the AIS user satisfaction of hotel financial and accounting executives can be vital to their performance and the hotel’s operational efficiency. The aim of this research is to investigate a number of factors that influence AIS user satisfaction in the post-implementation period in the case of the Greek hotel industry. The findings of our empirical study show that system quality, information quality, system use, service quality, firm’s size, years of system use, information technology integration, and organic structure have a positive effect on user satisfaction with AIS. On the contrary, statistical analysis shows that users’ level of education is negatively correlated with AIS user satisfaction. Finally, the current research findings contribute theoretically to the IS and accounting literature, and they also shine a light on the managerial implications for IS developers, hotel managers, and financial executives. Full article
20 pages, 2551 KiB  
Article
Identifying the Effect of Cognitive Motivation with the Method Based on Temporal Association Rule Mining Concept
by Tustanah Phukhachee, Suthathip Maneewongvatana, Chayapol Chaiyanan, Keiji Iramina and Boonserm Kaewkamnerdpong
Sensors 2024, 24(9), 2857; https://doi.org/10.3390/s24092857 (registering DOI) - 30 Apr 2024
Abstract
Being motivated has positive influences on task performance. However, motivation could result from various motives that affect different parts of the brain. Analyzing the motivation effect from all affected areas requires a high number of EEG electrodes, resulting in high cost, inflexibility, and [...] Read more.
Being motivated has positive influences on task performance. However, motivation could result from various motives that affect different parts of the brain. Analyzing the motivation effect from all affected areas requires a high number of EEG electrodes, resulting in high cost, inflexibility, and burden to users. In various real-world applications, only the motivation effect is required for performance evaluation regardless of the motive. Analyzing the relationships between the motivation-affected brain areas associated with the task’s performance could limit the required electrodes. This study introduced a method to identify the cognitive motivation effect with a reduced number of EEG electrodes. The temporal association rule mining (TARM) concept was used to analyze the relationships between attention and memorization brain areas under the effect of motivation from the cognitive motivation task. For accuracy improvement, the artificial bee colony (ABC) algorithm was applied with the central limit theorem (CLT) concept to optimize the TARM parameters. From the results, our method can identify the motivation effect with only FCz and P3 electrodes, with 74.5% classification accuracy on average with individual tests. Full article
(This article belongs to the Special Issue EEG Signal Processing Techniques and Applications—2nd Edition)
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14 pages, 9901 KiB  
Article
MicroRNA164 Affects Plant Responses to UV Radiation in Perennial Ryegrass
by Chang Xu, Xin Huang, Ning Ma, Yanrong Liu, Aijiao Xu, Xunzhong Zhang, Dayong Li, Yue Li, Wanjun Zhang and Kehua Wang
Plants 2024, 13(9), 1242; https://doi.org/10.3390/plants13091242 (registering DOI) - 30 Apr 2024
Abstract
Increasing the ultraviolet radiation (UV) level, particularly UV-B due to damage to the stratospheric ozone layer by human activities, has huge negative effects on plant and animal metabolism. As a widely grown cool-season forage grass and turfgrass in the world, perennial ryegrass ( [...] Read more.
Increasing the ultraviolet radiation (UV) level, particularly UV-B due to damage to the stratospheric ozone layer by human activities, has huge negative effects on plant and animal metabolism. As a widely grown cool-season forage grass and turfgrass in the world, perennial ryegrass (Lolium perenne) is UV-B-sensitive. To study the effects of miR164, a highly conserved microRNA in plants, on perennial ryegrass under UV stress, both OsmiR164a overexpression (OE164) and target mimicry (MIM164) transgenic perennial ryegrass plants were generated using agrobacterium-mediated transformation, and UV-B treatment (~600 μw cm−2) of 7 days was imposed. Morphological and physiological analysis showed that the miR164 gene affected perennial ryegrass UV tolerance negatively, demonstrated by the more scorching leaves, higher leaf electrolyte leakage, and lower relative water content in OE164 than the WT and MIM164 plants after UV stress. The increased UV sensitivity could be partially due to the reduction in antioxidative capacity and the accumulation of anthocyanins. This study indicated the potential of targeting miR164 and/or its targeted genes for the genetic manipulation of UV responses in forage grasses/turfgrasses; further research to reveal the molecular mechanism underlying how miR164 affects plant UV responses is needed. Full article
(This article belongs to the Topic Plant Responses to Environmental Stress)
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14 pages, 1293 KiB  
Article
Adapted Sequential Extraction Protocol to Study Mercury Speciation in Gold Mining Tailings: Implications for Environmental Contamination in the Amazon
by João Pedro Rudrigues de Souza, Jeremie Garnier, Julia Mançano Quintarelli, Myller de Sousa Tonhá, Henrique Llacer Roig, Patrick Seyler and Jurandir Rodrigues de Souza
Toxics 2024, 12(5), 326; https://doi.org/10.3390/toxics12050326 (registering DOI) - 30 Apr 2024
Abstract
Artisanal small-scale gold mining (ASGM), an increasingly prevalent activity in South America, generates mercury-contaminated tailings that are often disposed of in the environment, leading to the introduction of mercury into ecosystems and the food web, where it bioaccumulates. Therefore, studying the geochemical processes [...] Read more.
Artisanal small-scale gold mining (ASGM), an increasingly prevalent activity in South America, generates mercury-contaminated tailings that are often disposed of in the environment, leading to the introduction of mercury into ecosystems and the food web, where it bioaccumulates. Therefore, studying the geochemical processes involved in the desorption and dissolution of mercury in these tailings is essential for critical risk evaluations in the short and long term. For this purpose, sequential extraction procedures (SEPs) can be useful because they help to identify the phases to which Hg is associated, although they also have limitations such as a lack of selectivity and specificity. In this work, we propose a modified four-step SEP: exchangeable mercury (F1), oxidizable mercury (F2), mercury bound to Fe oxides (F3), and strongly bound mercury (F4). To test this adapted sequential extraction method, we evaluated the Hg contamination in mercury-contaminated tailings of the Amazon basin. The results revealed a total mercury concentration of 103 ± 16 mg·kg−1 in the tailings, with a significant portion in F1 (28% of the total), where Hg was bioavailable. The large Hg concentration in F3 (36%) suggested that Fe oxides likely contribute to mercury retention. Together, the SEP results emphasize the urgent need for improved surveillance of gold mining activities and responsible tailings management practices to mitigate environmental contamination and safeguard the health of the Amazon ecosystem. Full article
(This article belongs to the Section Metals and Radioactive Substances)
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25 pages, 386 KiB  
Review
Recent Advances in Synthesis and Interaction of Speech, Text, and Vision
by Laura Orynbay, Bibigul Razakhova, Peter Peer, Blaž Meden and Žiga Emeršič
Electronics 2024, 13(9), 1726; https://doi.org/10.3390/electronics13091726 (registering DOI) - 30 Apr 2024
Abstract
In recent years, there has been increasing interest in the conversion of images into audio descriptions. This is a field that lies at the intersection of Computer Vision (CV) and Natural Language Processing (NLP), and it involves various tasks, including creating textual descriptions [...] Read more.
In recent years, there has been increasing interest in the conversion of images into audio descriptions. This is a field that lies at the intersection of Computer Vision (CV) and Natural Language Processing (NLP), and it involves various tasks, including creating textual descriptions of images and converting them directly into auditory representations. Another aspect of this field is the synthesis of natural speech from text. This has significant potential to improve accessibility, user experience, and the applications of Artificial Intelligence (AI). In this article, we reviewed a wide range of image-to-audio conversion techniques. Various aspects of image captioning, speech synthesis, and direct image-to-speech conversion have been explored, from fundamental encoder–decoder architectures to more advanced methods such as transformers and adversarial learning. Although the focus of this review is on synthesizing audio descriptions from visual data, the reverse task of creating visual content from natural language descriptions is also covered. This study provides a comprehensive overview of the techniques and methodologies used in these fields and highlights the strengths and weaknesses of each approach. The study emphasizes the importance of various datasets, such as MS COCO, LibriTTS, and VizWiz Captions, which play a critical role in training models, evaluating them, promoting inclusivity, and solving real-world problems. The implications for the future suggest the potential of generating more natural and contextualized audio descriptions, whereas direct image-to-speech tasks provide opportunities for intuitive auditory representations of visual content. Full article
(This article belongs to the Special Issue Recent Advances in Computer Vision: Technologies and Applications)
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14 pages, 5522 KiB  
Article
Establishment of a Reference Evapotranspiration Forecasting Model Based on Machine Learning
by Puyi Guo, Jiayi Cao and Jianhui Lin
Agronomy 2024, 14(5), 939; https://doi.org/10.3390/agronomy14050939 (registering DOI) - 30 Apr 2024
Abstract
Water scarcity is a global problem. Deficit irrigation (DI) reduces evapotranspiration, improving water efficiency in agriculture. Reference evapotranspiration (ET0) is an important factor in determining DI. ET0 forecasting predicts field water consumption and enables proactive irrigation decisions, [...] Read more.
Water scarcity is a global problem. Deficit irrigation (DI) reduces evapotranspiration, improving water efficiency in agriculture. Reference evapotranspiration (ET0) is an important factor in determining DI. ET0 forecasting predicts field water consumption and enables proactive irrigation decisions, offering guidance for water resource management. However, implementation of ET0 forecasting faces challenges due to complex calculations and extensive meteorological data requirements. This project aims to develop a machine learning system for ET0 forecasting. The project involves studying ET0 methods and identifying required meteorological parameters. Historical meteorological data and weather forecasts were obtained from meteorological websites and analyzed for accuracy after preprocessing. A machine learning-based model was created to forecast reference crop evapotranspiration. The model’s input parameters were selected through path analysis before it was optimized using Bayesian optimization to reduce overfitting and improve accuracy. Three forecasting models were developed: one based on historical meteorological data, one based on weather forecasts, and one that corrects the weather forecasts. All three models achieved good accuracy, with root mean square errors ranging from 0.52 to 0.81 mm/day. Among them, the model based on weather forecast had the highest accuracy; the RMSE six days before the forecast period was between 0.52 and 0.75 mm/day, and the RMSE on the seventh day of the forecast period was 1.12 mm/day. In summary, this project has established a mathematical model of ET0 prediction based on machine learning, which can achieve more accurate predictions for within a few days. Full article
(This article belongs to the Section Water Use and Irrigation)
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14 pages, 3784 KiB  
Article
Effect of Different Hydrocolloids on the Qualitative Characteristics of Fermented Gluten-Free Quinoa Dough and Bread
by Tiziana Di Renzo, Maria Carmela Trivisonno, Stefania Nazzaro, Anna Reale and Maria Cristina Messia
Foods 2024, 13(9), 1382; https://doi.org/10.3390/foods13091382 (registering DOI) - 30 Apr 2024
Abstract
The aim of this research was to optimize the production process of fermented gluten-free quinoa bread. To this end, the effect of different hydrocolloids on the technological, fermentative, and nutritional properties of quinoa-based gluten-free doughs and breads was evaluated. For this purpose, 3% [...] Read more.
The aim of this research was to optimize the production process of fermented gluten-free quinoa bread. To this end, the effect of different hydrocolloids on the technological, fermentative, and nutritional properties of quinoa-based gluten-free doughs and breads was evaluated. For this purpose, 3% of four different hydrocolloids (sodium alginate, k-carrageenan, xanthan gum, and hydroxypropyl methylcellulose (HPMC)) were used in gluten-free doughs composed of 50% quinoa flour, 20% rice flour, and 30% potato starch. The rheological and fermentative properties of the doughs were evaluated, as well as the chemical composition, specific volume, crust and crumb color, and alveolar structure profile of gluten-free breads. The results highlighted the differences in dough rheology during mixing and fermentation of the doughs. In particular, HPMC showed a good gas retention (93%) during the fermentation of quinoa dough by registering the highest maximum dough development height (Hm). The gluten-free quinoa breads obtained were characterized by significantly different quality parameters (p < 0.05). The use of 3% HPMC resulted in breads with the lowest baking loss, the highest volume, and the most open crumb structure. Full article
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18 pages, 3394 KiB  
Article
AGSAM: Agent-Guided Segment Anything Model for Automatic Segmentation in Few-Shot Scenarios
by Hao Zhou, Yao He, Xiaoxiao Cui and Zhi Xie
Bioengineering 2024, 11(5), 447; https://doi.org/10.3390/bioengineering11050447 (registering DOI) - 30 Apr 2024
Abstract
Precise medical image segmentation of regions of interest (ROIs) is crucial for accurate disease diagnosis and progression assessment. However, acquiring high-quality annotated data at the pixel level poses a significant challenge due to the resource-intensive nature of this process. This scarcity of high-quality [...] Read more.
Precise medical image segmentation of regions of interest (ROIs) is crucial for accurate disease diagnosis and progression assessment. However, acquiring high-quality annotated data at the pixel level poses a significant challenge due to the resource-intensive nature of this process. This scarcity of high-quality annotated data results in few-shot scenarios, which are highly prevalent in clinical applications. To address this obstacle, this paper introduces Agent-Guided SAM (AGSAM), an innovative approach that transforms the Segment Anything Model (SAM) into a fully automated segmentation method by automating prompt generation. Capitalizing on the pre-trained feature extraction and decoding capabilities of SAM-Med2D, AGSAM circumvents the need for manual prompt engineering, ensuring adaptability across diverse segmentation methods. Furthermore, the proposed feature augmentation convolution module (FACM) enhances model accuracy by promoting stable feature representations. Experimental evaluations demonstrate AGSAM’s consistent superiority over other methods across various metrics. These findings highlight AGSAM’s efficacy in tackling the challenges associated with limited annotated data while achieving high-quality medical image segmentation. Full article
(This article belongs to the Section Biosignal Processing)
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19 pages, 2511 KiB  
Review
A Review of Emerging Technologies for the Extraction of Bioactive Compounds from Berries (Phalsa Berries)
by Rafeeya Shams, Simrat Kaur, Kshirod Kumar Dash, Nikolett Czipa, Béla Kovács and Ayaz Mukarram Shaikh
Horticulturae 2024, 10(5), 455; https://doi.org/10.3390/horticulturae10050455 (registering DOI) - 30 Apr 2024
Abstract
Berries have been gaining in popularity among consumers and producers due to their natural bioactive compounds that have beneficial effects on human health. This review aimed to identify effective techniques for the extraction of bioactive compounds from berries, consolidate the findings of recent [...] Read more.
Berries have been gaining in popularity among consumers and producers due to their natural bioactive compounds that have beneficial effects on human health. This review aimed to identify effective techniques for the extraction of bioactive compounds from berries, consolidate the findings of recent studies using various extraction technologies, and provide a global perspective on the research trends in this field. These extraction techniques include pulsed electric field, ultrasound-assisted extraction, pressurized liquid extraction, microwave-assisted extraction, and supercritical CO2 extraction. The solid waste generated during the industrial berry juice production process is assumed to be a less expensive source of raw materials for the natural extraction of bioactive compounds. The main aim of modern techniques is to produce more of the desired compound and find a method to extract bioactive compounds from berries without the use of hazardous solvents. These include flavonoids, phenols, anthocyanins, and antioxidants. Regarding the characterization of the bioactive compounds that are isolated from berries, aspects such as scanning electron microscopy, X-ray powder diffraction, Fourier transform infrared spectroscopy, and nuclear magnetic resonance were reviewed. Full article
(This article belongs to the Section Processed Horticultural Products)
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17 pages, 621 KiB  
Article
“Once Again It Becomes a Friend in Times of Adversity”: A Qualitative Exploration of Interrelationships between Anorexia Nervosa and Trauma over Ten Years
by Sallee Berry, Phillipa Hay and Janet Conti
Psychiatry Int. 2024, 5(2), 188-204; https://doi.org/10.3390/psychiatryint5020013 (registering DOI) - 30 Apr 2024
Abstract
Background: The majority of research on the relationship between anorexia nervosa (AN) and trauma has been cross-sectional and quantitative. This study aimed to qualitatively explore how this relationship may shift over time. Methods: A community sample of nine women with a lived experience [...] Read more.
Background: The majority of research on the relationship between anorexia nervosa (AN) and trauma has been cross-sectional and quantitative. This study aimed to qualitatively explore how this relationship may shift over time. Methods: A community sample of nine women with a lived experience of AN and trauma were interviewed three times over ten years (1997–2007). Thematic analysis and narrative emplotment were utilised to construct themes both within and across interview transcripts. Results: AN was found to function as a way of coping with trauma (Theme 1), and also became a traumatic experience in and of itself (Theme 2). Longitudinal shifts were identified where the women moved away from AN as a way of coping to loosen the stronghold it had over their lives. Conclusions: This study illuminated how the women’s relationship with AN shifted over time, including the functions and meanings ascribed to AN, and the resilience of women to exit critical stages of AN and achieve meaningful change in their lives over the long term. A further novel finding was that the coping function AN served in early years of life shifted over time as they navigated additional traumas in adulthood and new and diverse ways of coping. Full article
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8 pages, 2363 KiB  
Case Report
Disease Evolution Monitored by Serial Cerebrospinal Fluid Liquid Biopsies in Two Cases of Recurrent Medulloblastoma
by Katrina O’Halloran, Ashley Margol, Tom B. Davidson, Dolores Estrine, Benita Tamrazi, Jennifer A. Cotter, Jianling Ji and Jaclyn A. Biegel
Int. J. Mol. Sci. 2024, 25(9), 4882; https://doi.org/10.3390/ijms25094882 (registering DOI) - 30 Apr 2024
Abstract
Medulloblastoma is the most common malignant brain tumor in childhood. Initial treatment generally includes surgery, irradiation, and chemotherapy. Approximately 20–30% of patients will experience a recurrence, which portends a very poor prognosis. The current standard of care for evaluation for relapse includes radiographic [...] Read more.
Medulloblastoma is the most common malignant brain tumor in childhood. Initial treatment generally includes surgery, irradiation, and chemotherapy. Approximately 20–30% of patients will experience a recurrence, which portends a very poor prognosis. The current standard of care for evaluation for relapse includes radiographic surveillance with magnetic resonance imaging at regular intervals. The presence of circulating tumor DNA in the cerebrospinal fluid has been demonstrated to be a predictor of a higher risk of progression in a research setting for patients with medulloblastoma treated on a prospective single institution clinical trial. We have previously published and clinically validated a liquid-biopsy-based genetic assay utilizing low-pass whole genome sequencing to detect copy number alterations in circulating tumor DNA. Here, we present two teenage patients with posterior fossa medulloblastoma with recurrent disease who have been monitored with serial liquid biopsies showing tumor evolution over time, demonstrating the clinical utility of these approaches. Full article
(This article belongs to the Special Issue Liquid Biopsies in Oncology II)
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