The 2023 MDPI Annual Report has
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17 pages, 3685 KiB  
Article
Cleansing Tannery Effluent with Pleurotus opuntiae: A Green Solution for Environmental Restoration and Toxicity Evaluation
by Priyanka Yadav, Vartika Mishra, Tejmani Kumar, Umesh Kumar Singh, Emanuel Vamanu and Mohan Prasad Singh
Water 2024, 16(9), 1313; https://doi.org/10.3390/w16091313 (registering DOI) - 06 May 2024
Abstract
Heavy metal contamination has emerged as a global environmental concern, with tannery effluents serving as a significant source of these pollutants. The discharge of tannery effluents (TEs) into natural ecosystems has given rise to a spectrum of catastrophic risks, exacerbating concerns related to [...] Read more.
Heavy metal contamination has emerged as a global environmental concern, with tannery effluents serving as a significant source of these pollutants. The discharge of tannery effluents (TEs) into natural ecosystems has given rise to a spectrum of catastrophic risks, exacerbating concerns related to public health, safety, and environmental integrity. This current study focuses on the mycoremediation of the heavy metals present in TE, employing the mycelia of Pleurotus opuntiae, an environmentally sustainable solution. The toxicity of TE was rigorously characterized by evaluating a range of physicochemical parameters in accordance with the American Standard and Testing Methods. Subsequently, various diluted concentrations of effluent (25%, 50%, 75% and 100%) were incorporated into MDA media to assess the tolerance index (TI) of P. opuntiae. Notably, the highest TI was observed in the 25% and 50% TE concentrations, while no growth was observed in the 75% and 100% groups due to the exceptionally elevated heavy metal content. P. opuntiae demonstrated remarkable efficacy in heavy metal removal, with the most substantial reductions recorded in the 25% diluted effluent (91.3% Pb, 72.2% Cr and 66.5% Zn), closely followed by the 50% diluted effluent. The highest intracellular bioaccumulation was observed for Pb (17.2 µg/g), outperforming Cr (14.5 µg/g) and Zn (8.5 µg/g) in mycelia grown in 25% diluted effluent. To elucidate the detoxification mechanisms underlying metal removal, various characterizations of the mycelium were conducted, including SEM, FTIR, and XRD analyses. Furthermore, LC–MS analysis shed light on the pivotal role of metabolites in regulating heavy metals within the physiological metabolism of P. opuntiae. Moreover, an upsurge in the concentration of the stress marker, metallothionein, and augmented activity of antioxidant enzymes, like SOD, CAT, LPO and GSH, collectively suggested the significant role of antioxidants in mitigating reactive oxygen species (ROS) and heavy metal toxicity. These comprehensive findings provide a solid foundation for understanding the mechanisms responsible for heavy metal removal by P. opuntiae and pave the way for the development of effective remediation strategies for decontaminating the effluents discharged by the leather industry, contributing to the preservation of our environment and to public well-being. Full article
(This article belongs to the Section Wastewater Treatment and Reuse)
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16 pages, 2056 KiB  
Article
Evaluating the Effect of Prefabricated Building Incentive Policies Using Structural Equation Modeling: A Chinese Empirical Study
by Weidong Yan, Chunbing Guo and Lihong Li
Buildings 2024, 14(5), 1304; https://doi.org/10.3390/buildings14051304 (registering DOI) - 06 May 2024
Abstract
Building production increases energy demand, which raises carbon dioxide emissions and leads to environmental degradation. The use of prefabricated buildings has the potential to play an important role in promoting sustainable development in the construction industry, and prefabricated building incentive policies (PBIP) are [...] Read more.
Building production increases energy demand, which raises carbon dioxide emissions and leads to environmental degradation. The use of prefabricated buildings has the potential to play an important role in promoting sustainable development in the construction industry, and prefabricated building incentive policies (PBIP) are an effective means of improving the development level of prefabricated buildings (PBDL). This study investigated the significance of PBIP using a structural equation model (SEM) analysis of the results of 519 questionnaire surveys obtained in 10 prefabricated building demonstration cities in China. The results indicate that policy satisfaction has the most substantial impact on PBDL, with direct funding subsidy policy being the most influential factor. Policy application enthusiasm ranks second according to influence on PBDL, while policy awareness has the most negligible impact on PBDL among the examined factors. This research provides a reference for the government to formulate reasonable and effective prefabricated building incentive policies, and it may be useful for promoting the development of prefabricated buildings. Full article
(This article belongs to the Section Construction Management, and Computers & Digitization)
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7 pages, 821 KiB  
Case Report
Proton Pump Inhibitors Induced Hyponatremia in a Liver Transplanted Patient—The Role of Deprescribing: A Case Report and Literature Review
by Gianmarco Marcianò, Benedetto Caroleo, Luca Catarisano, Donatella Cocchis, Caterina Palleria, Giovambattista De Sarro and Luca Gallelli
Reports 2024, 7(2), 33; https://doi.org/10.3390/reports7020033 (registering DOI) - 06 May 2024
Abstract
Liver transplant patients are frail subjects due to lifelong therapy with immunosuppressants. In these patients, comorbidity and polytherapy increase the risk of adverse drug reactions. In this study, we report the development of hyponatremia, probably related to pantoprazole in a liver transplant patient. [...] Read more.
Liver transplant patients are frail subjects due to lifelong therapy with immunosuppressants. In these patients, comorbidity and polytherapy increase the risk of adverse drug reactions. In this study, we report the development of hyponatremia, probably related to pantoprazole in a liver transplant patient. Sertraline dismission and treatment with sodium chloride did not improve clinical symptoms and laboratory levels. Pantoprazole dismission induced an improvement in clinical symptoms and the normalization of sodium levels. A five-month follow-up revealed the absence of clinical symptoms and normal serum sodium levels. Full article
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19 pages, 837 KiB  
Article
Styling Authenticity in Country Music
by Valentin Werner and Anna Ledermann
Languages 2024, 9(5), 168; https://doi.org/10.3390/languages9050168 (registering DOI) - 06 May 2024
Abstract
Country music has become commercially successful both in the US and worldwide. It is perceived as a genre that values authenticity, which may be reflected in the choice of linguistic features, with (White) Southern American English (SAE) serving as the “default” variety. Given [...] Read more.
Country music has become commercially successful both in the US and worldwide. It is perceived as a genre that values authenticity, which may be reflected in the choice of linguistic features, with (White) Southern American English (SAE) serving as the “default” variety. Given the recent diversification of the genre, the question arises whether the use of SAE features is still considered obligatory as a kind of “supralocal norm”. This study compared the lyrics of 600 highly successful songs by male and female artists from White Southern, Black Southern, and White non-Southern backgrounds. The aim was to test (i) whether morphosyntactic SAE features are used to index authenticity in the sense of having become enregistered for this music genre and (ii) whether non-Southerners engage in the styling of relevant markers. It emerged that non-Southerners use more of these features than their Southern counterparts, providing preliminary evidence for “genre fitting” as a means of indexing authenticity. However, there is only one marker that qualifies as a core Country feature used across all artist groups, namely negative concord. As this item arguably is better categorized as vernacular universal, SAE morphosyntax appears to have largely lost its indexical function in Country, while accent features are still vital to establishing cultural authenticity. Full article
(This article belongs to the Special Issue Interface between Sociolinguistics and Music)
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10 pages, 277 KiB  
Opinion
Neuron-Specific Enolase—What Are We Measuring?
by Anastasiya S. Babkina, Maxim A. Lyubomudrov, Mikhail A. Golubev, Mikhail V. Pisarev and Arkady M. Golubev
Int. J. Mol. Sci. 2024, 25(9), 5040; https://doi.org/10.3390/ijms25095040 (registering DOI) - 06 May 2024
Abstract
Since the discovery of the neuron-specific protein by Moore and McGregor in 1965, tens of thousands of studies have investigated the basic and applied significance of neuron-specific enolase (NSE). This promising biomarker, according to many researchers, has not found widespread use in clinical [...] Read more.
Since the discovery of the neuron-specific protein by Moore and McGregor in 1965, tens of thousands of studies have investigated the basic and applied significance of neuron-specific enolase (NSE). This promising biomarker, according to many researchers, has not found widespread use in clinical practice, particularly in acute cerebrovascular accidents. Moreover, the several studies refuting the usefulness of serum NSE measurement in critically ill patients leads us to consider the reasons for such contradictory conclusions. In this article, we have analyzed the main directions in the study of NSE and expressed our perspective on the reasons for the contradictory results and the difficulties in implementing the results of these studies in clinical practice. In our opinion, the method of the enzyme-linked immunosorbent assay (ELISA) used in the majority of the studies is inappropriate for the evaluation of NSE as a marker of central nervous system damage, because it does not allow for the differentiation of heterodimers of enolases and the assessment of the enzymatic activity of this group of enzymatic proteins. Therefore, the methodological approach for the evaluation of NSE (γγ-enolase) as a biomarker needs to be elaborated and improved. Furthermore, the specificity of the applied research methods and the appropriateness of the continued use of the term “neuron-specific enolase” must be addressed. Full article
(This article belongs to the Section Molecular Pathology, Diagnostics, and Therapeutics)
13 pages, 3170 KiB  
Article
Preliminary Analysis of Beam Position Monitor Accuracy
by Jun He, Yanfeng Sui, Chongyang Liang, Yaoyao Du, Ying Zhao, Wan Zhang, Fangqi Huang, Taoguang Xu, Junhui Yue and Jianshe Cao
Symmetry 2024, 16(5), 566; https://doi.org/10.3390/sym16050566 (registering DOI) - 06 May 2024
Abstract
The beam position is the most important reference basis for the operation of synchrotron radiation light sources, particularly for commissioning the first-turn injection of fourth-generation light sources. To improve the accuracy of the beam position measurement, we analyzed methods for calculating the beam [...] Read more.
The beam position is the most important reference basis for the operation of synchrotron radiation light sources, particularly for commissioning the first-turn injection of fourth-generation light sources. To improve the accuracy of the beam position measurement, we analyzed methods for calculating the beam position, and a finite element calculation and the stretched wire calibration system were used to demonstrate the procedure. We proved the relationship between the coverage range, fitting order, scanning step size, and accuracy both theoretically and experimentally, which can provide a basis for selecting the appropriate fitting order for different operation stages of the accelerator. It was proved that the accuracy of beam position calculations using simplified polynomial coefficients is comparable to those without a simplified one, which can save resources for reading electronic processing. The testing results of a batch of beam position monitors (BPMs) were in good agreement with the finite element calculation results, and the small difference between the manufactured BPMs also proved that quality control was performed well, and it benefited from button sorting. Full article
(This article belongs to the Section Physics)
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13 pages, 54733 KiB  
Article
On the Mechanical Properties and Fracture Patterns of Biphenylene-Based Nanotubes: A Reactive Molecular Dynamics Study
by Hudson Rodrigues Armando, Wiliam Ferreira Giozza, Luiz Antonio Ribeiro Junior and Marcelo Lopes Pereira Junior
C 2024, 10(2), 42; https://doi.org/10.3390/c10020042 (registering DOI) - 06 May 2024
Abstract
Carbon-based materials have garnered significant attention since the groundbreaking synthesis of graphene. The exploration of novel 2D carbon allotropes has led to the discovery of materials with intrinsic properties distinct from graphene. Within this context, the biphenylene network (BPN) was successfully synthesized. In [...] Read more.
Carbon-based materials have garnered significant attention since the groundbreaking synthesis of graphene. The exploration of novel 2D carbon allotropes has led to the discovery of materials with intrinsic properties distinct from graphene. Within this context, the biphenylene network (BPN) was successfully synthesized. In this study, we used molecular dynamics (MD) simulations with the Reactive Force Field (ReaxFF) to delve into the thermomechanical properties and fracture patterns of biphenylene-based nanotubes (BPN-NTs) exhibiting armchair (AC-BPN-NT) and zigzag (ZZ-BPN-NT) chiralities. Throughout the longitudinal deformation process, we observed significant morphological transformations preceding the structural fracture of the system. These transformations unfolded in distinct inelastic phases. In both cases, AC- and ZZ-BPN-NT, stress accumulation in four-membered rings led to the creation of octagonal structures; however, in AC, this occurs in the fracture region, subsequently causing the presence of nanopores. On the other hand, for ZZ-BPN-NT, stress accumulation in the rectangular rings occurred in bonds parallel to the deformation, with elongated octagonal structures. The Young’s modulus of these nanotubes ranged from 746 to 1259 GPa, with a melting point of around 4000 K. Our results also explore the influence of diameter and curvature, drawing comparisons with BPN monolayers. Full article
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11 pages, 3150 KiB  
Article
Titanium Nanostructures: Advancing Photocatalysis in Complex Systems
by Alondra A. Lugo-Ruiz and Sonia J. Bailón-Ruiz
Photochem 2024, 4(2), 222-232; https://doi.org/10.3390/photochem4020014 (registering DOI) - 06 May 2024
Abstract
The use of semiconductor materials, specifically TiO2, for photocatalysis of organic pollutants has gained global interest as an effective method for contaminant removal from wastewater. Titanium dioxide (TiO2) is a widely studied photocatalyst and is considered one of the [...] Read more.
The use of semiconductor materials, specifically TiO2, for photocatalysis of organic pollutants has gained global interest as an effective method for contaminant removal from wastewater. Titanium dioxide (TiO2) is a widely studied photocatalyst and is considered one of the best for wastewater treatments due to its high stability, affordability, and nontoxicity. The discharge of wastewater from the textile industries, which constitutes around 20% of total textile effluent, has become a significant environmental concern, posing a threat to both the aquatic ecosystem and human health. We aimed to investigate the photodegradation of organic dyes like Amaranth (AM), Methyl Orange (MO), and Quinoline Yellow (QY), individually and in combination, in an aqueous suspension with varying concentrations of TiO2. Results indicate a significant degradation of all three dyes in the multicomponent, with approximately 40% degradation in the presence of the 0.050 g/L TiO2 after 360 min. These findings suggest that TiO2 has a significant potential as a nanocatalyst in complex matrices. Full article
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7 pages, 15380 KiB  
Case Report
Giant Sublingual, Submental, and Lingual Dermoid Cyst Restricting Tongue Movement Undiagnosed for Several Years
by Jakub Bargiel, Michał Gontarz, Krzysztof Gąsiorowski, Tomasz Marecik, Paweł Szczurowski, Jan Zapała and Grażyna Wyszyńska-Pawelec
Diseases 2024, 12(5), 91; https://doi.org/10.3390/diseases12050091 (registering DOI) - 06 May 2024
Abstract
(1) Background: Dermoid cysts occurring in the sublingual space are uncommon, typically manifesting as painless, gradually enlarging masses, usually not exceeding 3 cm in diameter. These cysts can resemble various conditions due to their clinical presentation, with a relatively low occurrence rate in [...] Read more.
(1) Background: Dermoid cysts occurring in the sublingual space are uncommon, typically manifesting as painless, gradually enlarging masses, usually not exceeding 3 cm in diameter. These cysts can resemble various conditions due to their clinical presentation, with a relatively low occurrence rate in the oral cavity, accounting for about 1.6% of all dermoid cysts. (2) Methods: We present the case of a 17-year-old female with a giant dermoid cyst involving the submental, sublingual, and lingual areas, undiagnosed for several years. Diagnosis was achieved through MRI and fine-needle aspiration, leading to the decision for surgical removal through a cervical approach. (3) Results: The healing process was uneventful. From the first day post-surgery, the patient began myofunctional therapy, successfully regaining proper tongue functions. Throughout a 24-month follow-up, the patient remained symptom-free. (4) Conclusions: A cervical approach can successfully treat giant oral dermoid cysts involving submental, sublingual, and lingual spaces. Tongue function can be successfully regained through myofunctional therapy after surgical treatment. Full article
(This article belongs to the Section Rare Syndrome)
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10 pages, 605 KiB  
Article
Evaluation of a Novel Enteral Phosphorus Therapy with Enteral Nutrition during a National Intravenous Sodium Phosphate Shortage
by Tinia D. Harris, Julie E. Farrar, Saskya Byerly, Dina M. Filiberto and Roland N. Dickerson
Nutrients 2024, 16(9), 1394; https://doi.org/10.3390/nu16091394 (registering DOI) - 06 May 2024
Abstract
The purpose of this study was to evaluate the efficacy and safety of intragastric administration of small volumes of sodium enema solution containing phosphorus as phosphorus replacement therapy in critically ill patients with traumatic injuries who required continuous enteral nutrition. Adult patients (>17 [...] Read more.
The purpose of this study was to evaluate the efficacy and safety of intragastric administration of small volumes of sodium enema solution containing phosphorus as phosphorus replacement therapy in critically ill patients with traumatic injuries who required continuous enteral nutrition. Adult patients (>17 years of age) who had a serum phosphorus concentration <3 mg/dL (0.97 mmol/L) were evaluated. Patients with a serum creatinine concentration >1.4 mg/dL (124 µmol/L) were excluded. Patients were given 20 mL of saline enema solution intragastrically, containing 34 mmol of phosphorus and mixed in 240 mL water. A total of 55% and 73% of patients who received one (n = 22) or two doses (n = 11) had an improvement in the serum phosphorus concentration, respectively. The serum phosphorus concentration increased from 2.5 [2.1, 2.8] mg/dL (0.81 [0.69, 0.90] mmol/L) to 2.9 [2.2, 3.0] mg/dL (0.94 [0.71, 0.97 mmol/L) for those who received two doses (p = 0.222). Excluding two patients with a marked decline in serum phosphorus by 1.3 mg/dL (0.32 mmol/L) resulted in an increase in the serum phosphorus concentration from 2.3 [2.0, 2.8] mg/dL (0.74 [0.65, 0.90] mmol/L) to 2.9 [2.5, 3.2] mg/dL (0.94 [0.81, 1.03] mmol/L; n = 9; p = 0.012). No significant adverse effects were noted. Our data indicated that intragastric phosphate administration using a small volume of saline enema solution improved the serum phosphorus concentrations in most patients. Full article
(This article belongs to the Special Issue Nutritional Therapies in Clinical Practice, Management and Care)
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18 pages, 765 KiB  
Article
‘Refuse Dump, Hurry Up!’: A Cognitive Onomastic and Cultural Metaphor Perspective of Nzema Death-Prevention Names
by Mohammed Yakub
Languages 2024, 9(5), 167; https://doi.org/10.3390/languages9050167 (registering DOI) - 06 May 2024
Abstract
African personal names have communicative contents that reflect the experiences and expectations of the name-giver as well as the bearer. Death-prevention names, for instance, provide some assurance and security that are vital for a child’s survival, given the implicit assumption that certain spiritual [...] Read more.
African personal names have communicative contents that reflect the experiences and expectations of the name-giver as well as the bearer. Death-prevention names, for instance, provide some assurance and security that are vital for a child’s survival, given the implicit assumption that certain spiritual forces are at work. The bestowal of despicable and ‘ugly’ names on children whose preceding siblings died shortly after birth is also a common practice among the Nzema, aiming at preventing succeeding children from death. This study examines cultural conceptions and metaphorical correlations in Nzema death-prevention names. Using 42 death-prevention names obtained through interviews, the study discusses the implications of the names and their metaphoric connections with the objects used to identify this category of people. The study reveals that features of entities such as ɛkpɔtɛ ‘vulture’, nrɛzenra ‘housefly’, kɛndɛne ‘basket’, and fovolɛ ‘refuse dump’ are attributed to these children to make them seem ‘unpleasant’ to the ancestral spirits who are believed to have been snatching them after birth. Other ‘long-lasting’ entities like nyevile ‘sea’, bolɛ ‘rock’, and kpɔma ‘walking stick’ are used metaphorically to refer to a child with the belief that they would survive right from birth and live long on the earth. Full article
(This article belongs to the Special Issue Interdisciplinary Perspectives on Personal Names and Naming in Africa)
14 pages, 8062 KiB  
Article
Land Use Impact on Water Quality and Phytoplankton Community Structure in Danjiangkou Reservoir
by Yanrong Zhu, Jing Gao, Hongbing Zhao, Shijiang Deng, Mengran Lin, Nenghan Wang, Minxuan Liu, Sheng Hu and Laibo Luo
Diversity 2024, 16(5), 275; https://doi.org/10.3390/d16050275 (registering DOI) - 06 May 2024
Abstract
The composition and intensity of land use significantly influence the aquatic ecological environment, further affecting the physicochemical attributes of the water body, and indirectly modulating the phytoplankton community structure. This study centers around the Danjiangkou Reservoir, investigating the correlation between land use, water [...] Read more.
The composition and intensity of land use significantly influence the aquatic ecological environment, further affecting the physicochemical attributes of the water body, and indirectly modulating the phytoplankton community structure. This study centers around the Danjiangkou Reservoir, investigating the correlation between land use, water environment, and phytoplankton alongside varying intensities of anthropogenic activities, based on the review of land use, phytoplankton, and water quality data of 2021. Firstly, an analysis was conducted over five circular buffer zones generated around sampling points with radii set at 500 m, 1000 m, 1500 m, 2000 m, and 2500 m, wherein the intensity of human activity was categorized into low, medium, and high, in accordance with the human activity intensity level score (HAILS). This study proceeded to explore the correlation between land use and the water environment across different scales, compared phytoplankton density and community structure differences across varied levels of human activity, and analyzed the association between phytoplankton communities in the Danjiangkou Reservoir and environmental variables under various intensities. The findings showed: The land use within the 500 m circular buffer zone has the greatest impact on the water quality of the Danjiangkou Reservoir, especially with the increase in human activities leading to elevated nutrient levels in the water, thereby promoting the growth and reproduction of algae, and increasing the risk of algal blooms. This research scrutinizes the relationship between land use, water environment, and plankton under varying human activity intensities, serving as a foundation for environmental management sectors to make informed decisions and promote the sustainable development of the catchment water environment. Full article
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11 pages, 2415 KiB  
Article
Effectiveness of Nudge Tools to Promote Hand Disinfection among Healthcare Professionals and Visitors in Health Institution: The Slovenian Pilot Study
by Neža Podvratnik, Andrej Ovca and Mojca Jevšnik
Hygiene 2024, 4(2), 178-188; https://doi.org/10.3390/hygiene4020014 (registering DOI) - 06 May 2024
Abstract
Healthcare-associated infections (HAIs) are considered to be one of the biggest health problems as they continue to be an important cause of morbidity and mortality worldwide. They cannot be completely prevented, but their incidence can be significantly limited. Preventive action is the most [...] Read more.
Healthcare-associated infections (HAIs) are considered to be one of the biggest health problems as they continue to be an important cause of morbidity and mortality worldwide. They cannot be completely prevented, but their incidence can be significantly limited. Preventive action is the most important measure in this case. Due to the frequent interaction between healthcare professionals and patients, the crucial importance of hand hygiene is therefore emphasised. Adherence to good disinfection and hand washing practices remains around 40%, which can be improved by using a variety of nudge tools to promote desired hygienic behaviour. We conducted an open observation of employees and visitors with participation. The aim of this study was to determine the actual status of hand disinfection in a selected healthcare facility amongst doctors, registered nurses, medical technicians, cleaners, and visitors or parents of children; then, we selected and introduced three nudge tools of desired hygiene behaviour and analysed their effectiveness; finally, we provided suggestions for the use of nudge tools of desired hygiene behaviour with the aim of influencing doctors, registered nurses, medical technicians, cleaners, and visitors or parents of children so that they disinfect their hands properly. The actual state of hand disinfection was determined on the basis of observation without introducing any changes; then, we separately introduced three nudge tools, posters with an inscription and picture, the scent of citrus, and flashing lights. The obtained results were analysed with the help of the SpeedyAudit Lite application, and the effectiveness of each nudge tool and the adequacy of hand disinfection by categories of people were compared. In general, posters with a picture and an inscription contributed the most to more consistent disinfection of employees’ hands, while the scent of citrus and flashing lights contributed slightly less. Full article
(This article belongs to the Section Hygiene in Healthcare Facilities)
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19 pages, 949 KiB  
Review
The Effect of Oral GABA on the Nervous System: Potential for Therapeutic Intervention
by Shahad Almutairi, Amaya Sivadas and Andrea Kwakowsky
Nutraceuticals 2024, 4(2), 241-259; https://doi.org/10.3390/nutraceuticals4020015 (registering DOI) - 06 May 2024
Abstract
Gamma-aminobutyric acid (GABA), the primary inhibitory neurotransmitter in the central nervous system (CNS), plays a pivotal role in maintaining the delicate balance between inhibitory and excitatory neurotransmission. Dysregulation of the excitatory/inhibitory balance is implicated in various neurological and psychiatric disorders, emphasizing the critical [...] Read more.
Gamma-aminobutyric acid (GABA), the primary inhibitory neurotransmitter in the central nervous system (CNS), plays a pivotal role in maintaining the delicate balance between inhibitory and excitatory neurotransmission. Dysregulation of the excitatory/inhibitory balance is implicated in various neurological and psychiatric disorders, emphasizing the critical role of GABA in disease-free brain function. The review examines the intricate interplay between the gut–brain axis and CNS function. The potential impact of dietary GABA on the brain, either by traversing the blood–brain barrier (BBB) or indirectly through the gut–brain axis, is explored. While traditional beliefs questioned GABA’s ability to cross the BBB, recent research challenges this notion, proposing specific transporter systems facilitating GABA passage. Animal studies provide some evidence that small amounts of GABA can cross the BBB but there is a lack of human data to support the role of transporter-mediated GABA entry into the brain. This review also explores GABA-containing food supplements, investigating their impact on brain activity and functions. The potential benefits of GABA supplementation on pain management and sleep quality are highlighted, supported by alterations in electroencephalography (EEG) brain responses following oral GABA intake. The comprehensive overview encompasses GABA’s sources in the diet, including brown rice, soy, adzuki beans, and fermented foods. GABA’s presence in various foods and supplements, its association with gut microbiota, and its potential as a therapeutic strategy for neurological disorders are thoroughly examined. The articles were retrieved through a systematic review of the databases: OVID, SCOPUS, and PubMed (keywords “GABA”, “oral GABA“, “sleep”, “cognition”, “neurodegenerative”, “blood-brain barrier”, “gut microbiota”, “supplements” and “therapeutic”, and by searching reference sections from identified studies and review articles). This review presents the relevant literature available on the topic and discusses the mechanisms, effects, and hypotheses that suggest oral GABA benefits range from neuroprotection to blood pressure control. The literature suggests that oral intake of GABA affects the brain illustrated by changes in EEG scans and cognitive performance, with evidence showing that GABA can have beneficial effects for multiple age groups and conditions. The potential clinical and research implications of utilizing GABA supplementation are vast, spanning a spectrum of diseases ranging from neurodegeneration to blood pressure regulation. Importantly, recommendations for the use of oral GABA should consider the dosage, formulation, and duration of treatment as well as potential side effects. Effects of GABA need to be more thoroughly investigated in robust clinical trials to validate efficacy to progress the development of alternative treatments for a variety of disorders. Full article
(This article belongs to the Special Issue The Role of Nutraceuticals in Central Nervous System Disorders)
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19 pages, 1029 KiB  
Article
Design and Evaluation of a Collective Preventive Program for Musical Performance Anxiety (ConfiDance)
by Belén Gómez-López and Roberto Sánchez-Cabrero
Eur. J. Investig. Health Psychol. Educ. 2024, 14(5), 1260-1278; https://doi.org/10.3390/ejihpe14050083 (registering DOI) - 06 May 2024
Abstract
Musical performance anxiety (MPA) is considered a subtype of social phobia and affects musicians who must face musical exposure in public, potentially severely affecting their emotional stability and significantly impairing the quality of their performance. This research has utilized previous scientific knowledge on [...] Read more.
Musical performance anxiety (MPA) is considered a subtype of social phobia and affects musicians who must face musical exposure in public, potentially severely affecting their emotional stability and significantly impairing the quality of their performance. This research has utilized previous scientific knowledge on the issue and a qualitative approach to musicians’ needs through focus groups in order to design a collective preventive program for MPA that could be implemented within the training curriculum of professional musicians. To evaluate the adequacy of the preventive program ‘ConfiDance’, a pilot test was conducted with a sample of 17 professional musicians in training, all post-graduate students in classical music performance. For the pilot test, a quasi-experimental model with a repeated measures methodology (pre-post and one-year follow-up after application) was carried out. The results indicate a significant decrease in MPA after the program implementation, with a notable improvement in effect one year post-application, demonstrating an even greater positive impact over time. These data should be interpreted cautiously due to sample limitations but represent an opportunity for the future implementation of a program that can prevent and treat MPA in music education centers. Full article
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16 pages, 4089 KiB  
Article
Programmed Death Ligand 1 Expression in Circulating Tumor Cells as a Predictor and Monitor of Response to Atezolizumab plus Bevacizumab Treatment in Patients with Hepatocellular Carcinoma
by Takuto Nosaka, Yosuke Murata, Yu Akazawa, Tomoko Tanaka, Kazuto Takahashi, Tatsushi Naito, Hidetaka Matsuda, Masahiro Ohtani, Yoshiaki Imamura and Yasunari Nakamoto
Cancers 2024, 16(9), 1785; https://doi.org/10.3390/cancers16091785 (registering DOI) - 06 May 2024
Abstract
There remains no reliable biomarker of therapeutic efficacy in hepatocellular carcinoma (HCC) for the PD-L1 inhibitor atezolizumab and bevacizumab (Atezo/Bev). Circulating tumor cells (CTCs) enable the serial collection of living tumor cells. Pre-treatment and serial CTC gene expression changes and tumor histology were [...] Read more.
There remains no reliable biomarker of therapeutic efficacy in hepatocellular carcinoma (HCC) for the PD-L1 inhibitor atezolizumab and bevacizumab (Atezo/Bev). Circulating tumor cells (CTCs) enable the serial collection of living tumor cells. Pre-treatment and serial CTC gene expression changes and tumor histology were evaluated to identify predictors of response to Atezo/Bev. Peripheral blood from 22 patients with HCC treated with Atezo/Bev and 24 patients treated with lenvatinib was serially collected. The RNA expression in CTCs was analyzed using qRT-PCR. Higher PD-L1 expression in pre-treatment CTCs was associated with response and improved prognosis with Atezo/Bev treatment, but not with lenvatinib. There was no correlation between PD-L1 expression in CTCs and that in liver tumor biopsy specimens scored using imaging software. Furthermore, PD-L1 RNA expression in CTCs was dynamically altered by Atezo/Bev, decreasing during effective response and increasing upon progression. CTC-derived RNA collected during Atezo/Bev indicates that patients with higher PD-L1 expression in CTCs at baseline were 3.9 times more responsive to treatment. Therefore, PD-L1 RNA levels in CTCs are an accurate response predictor and may be a monitorable biomarker that changes dynamically to reflect the response during Atezo/Bev treatment. Full article
(This article belongs to the Special Issue Circulating Cancer Biomarkers: Progress, Challenges and Opportunities)
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16 pages, 49708 KiB  
Article
Effect of Quenching Cooling Rate on Hydrogen Embrittlement of Precipitation-Hardened Martensitic Stainless Steels
by Sicong Shen, Xingyu Ma, Xiaolong Song, Wenwen Zhao and Yong Shen
Coatings 2024, 14(5), 572; https://doi.org/10.3390/coatings14050572 (registering DOI) - 06 May 2024
Abstract
Heat treatment plays a decisive role in the microstructure of metallic materials. The effect of cooling rate changes caused by the quenching medium on the microstructure of steel materials should be clarified. In this study, the effect of the quenching cooling rate on [...] Read more.
Heat treatment plays a decisive role in the microstructure of metallic materials. The effect of cooling rate changes caused by the quenching medium on the microstructure of steel materials should be clarified. In this study, the effect of the quenching cooling rate on the microstructure of two precipitation-hardened martensitic stainless steels was investigated. The mechanical properties and hydrogen embrittlement susceptibility effected by the changes in the microstructure were also analyzed. A slow tensile test and hydrogen pre-charging were carried out to obtain the hydrogen embrittlement susceptibility parameters of the specimens. The results show that the quenching cooling rate only affects specific microstructures, including the twin structure and misorientation angle. Before hydrogen charging, the mechanical properties of the precipitation-hardened martensitic stainless steels were not affected by changing the quenching cooling rate. After hydrogen charging, the hydrogen embrittlement susceptibility decreased as the quenching cooling rate increased. Full article
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19 pages, 2084 KiB  
Article
Restricted-Access Media Column Switching Online Solid-Phase Extraction UHPLC–MS/MS for the Determination of Seven Type B Trichothecenes in Whole-Grain Preprocessed Foods and Human Exposure Risk Assessment
by Xiao Ning, Yongli Ye, Jian Ji, Yanchun Hui, Jingyun Li, Po Chen, Shaoming Jin, Tongtong Liu, Yinzhi Zhang, Jin Cao and Xiulan Sun
Toxics 2024, 12(5), 336; https://doi.org/10.3390/toxics12050336 (registering DOI) - 06 May 2024
Abstract
With increasing health awareness and the accelerating pace of life, whole-grain prepared foods have gained popularity due to their health benefits and convenience. However, the potential risk of type B trichothecene toxins has also increased, and these mycotoxins in such foods are rarely [...] Read more.
With increasing health awareness and the accelerating pace of life, whole-grain prepared foods have gained popularity due to their health benefits and convenience. However, the potential risk of type B trichothecene toxins has also increased, and these mycotoxins in such foods are rarely regulated. In this study, a quantitative method combining a single-valve dual-column automatic online solid-phase extraction system with ultra-high-performance liquid chromatography–tandem mass spectrometry (UHPLC–MS/MS) was developed for the first time using restricted-access media columns. This method can simultaneously determine trace residues of seven type B trichothecenes within 15 min. The method is convenient, sensitive (limit of detection and quantification of 0.05–0.6 μg/kg and 0.15–2 μg/kg, respectively), accurate (recovery rates of 90.3%–106.6%, relative standard deviation < 4.3%), and robust (>1000 times). The established method was applied to 160 prepared food samples of eight categories sold in China. At least one toxin was detected in 70% of the samples. Whole-wheat dumpling wrappers had the highest contamination rate (95%) and the highest total content of type B trichothecenes in a single sample (2077.3 μg/kg). Exposure risk assessment indicated that the contamination of whole-grain prepared foods has been underestimated. The total health risk index of whole-wheat dumpling wrappers, which are susceptible to deoxynivalenol, reached 136.41%, posing a significant threat to human health. Effective measures urgently need to be taken to control this risk. Full article
(This article belongs to the Special Issue State-of-the-Art Environmental Chemicals Exposomics and Metabolomics)
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8 pages, 395 KiB  
Brief Report
Chronic Pulmonary Aspergillosis after Surgical Treatment for Non-Small Cell Lung Cancer—An Analysis of Risk Factors and Clinical Outcomes
by George Whittaker, Marcus Taylor, Mathilde Chamula, Felice Granato, Haval Balata and Chris Kosmidis
J. Fungi 2024, 10(5), 335; https://doi.org/10.3390/jof10050335 (registering DOI) - 06 May 2024
Abstract
Chronic pulmonary aspergillosis (CPA) is a rare but significant complication of lung cancer surgery. Its effect on survival remains unclear. Our aim was to describe the outcomes of the patients who developed CPA following the surgery for non-small cell lung cancer (NSCLC), identify [...] Read more.
Chronic pulmonary aspergillosis (CPA) is a rare but significant complication of lung cancer surgery. Its effect on survival remains unclear. Our aim was to describe the outcomes of the patients who developed CPA following the surgery for non-small cell lung cancer (NSCLC), identify the risk factors associated with its development following lung resection, and evaluate its impact on survival. All the patients with a diagnosis of CPA and operated NSCLC were identified in the National Aspergillosis Centre (NAC) database (2009–2020). Additional patients were identified in the Northwest Clinical Outcomes Research Registry (2012–2019) database. A regression analysis was performed to examine potential links between CPA and long-term outcomes and also to identify the factors associated with the development of CPA. The primary outcomes were the development of CPA, 1-year and 5-year mortality, and overall survival. Thirty-two patients diagnosed with CPA after lung resection were identified in the NAC database, of which 11 were also contained within the NCORR database, with a prevalence of 0.2% (n = 11/4425). Post-operative CPA was associated with significantly lower survival on log-rank analysis (p = 0.020). Mortality at one year was 25.0% (n = 8) and 59.4% (n = 19) at five years after the CPA diagnosis. On univariable analysis, a lower mean percentage-predicted forced expiratory volume in 1 s, ischaemic heart disease, and chronic obstructive pulmonary disease were all significantly associated with CPA development. CPA is a rare complication following lung cancer surgery which has a significant impact on long-term survival. Its development may be associated with pre-existing cardiopulmonary comorbidities. Further research in larger cohorts is required to substantiate these findings. Full article
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25 pages, 16520 KiB  
Article
Numerical Studies of the Influence of Flue Gas Recirculation into Primary Air on NOx Formation, CO Emission, and Low-NOx Waterwall Corrosion in the OP 650 Boiler
by Bartłomiej Hernik, Piotr Brudziana, Radosław Klon and Marek Pronobis
Energies 2024, 17(9), 2227; https://doi.org/10.3390/en17092227 (registering DOI) - 06 May 2024
Abstract
Numerical calculations of the innovative flue gas recirculation (FGR) system through an inactive coal pulverizer for a 40% load of the OP 650 boiler at the Jaworzno III Power Plant were carried out. The research was conducted to determine the effect of FGR [...] Read more.
Numerical calculations of the innovative flue gas recirculation (FGR) system through an inactive coal pulverizer for a 40% load of the OP 650 boiler at the Jaworzno III Power Plant were carried out. The research was conducted to determine the effect of FGR on the formation of NOx, CO emissions, and low-NOx waterwall corrosion. Using numerical modelling, the influence of the place of injection of recirculated flue gas on the formation of NOx was also investigated. The tests were carried out based on data from the boiler monitoring system and calculation results using a 0-dimensional model. Modelling of the FGR was performed for five variants. FGR equalized the temperature in the furnace, eliminating temperature peaks in the burner belt. Moreover, FGR did not increase the CO content in the flue gas and reduced the O2 concentration in the area zone of pulverized coal combustion. For FGR systems, the emission of NOx below 200 mg/m3n for 6% O2 in dry flue gas was kept. This proves that the recirculation helps to meet the BAT (best available techniques) requirements for NOx emissions. It has also been shown that FGR does not pose a risk of low-NOx corrosion in the next 20 years. Full article
(This article belongs to the Special Issue Modeling and Analysis of Fluid Flow and Heat Transfer)
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15 pages, 4247 KiB  
Article
An Experimental Direct Model for the Sky Temperature Evaluation in the Mediterranean Area: A Preliminary Investigation
by Edoardo De Cristo, Luca Evangelisti, Claudia Guattari and Roberto De Lieto Vollaro
Energies 2024, 17(9), 2228; https://doi.org/10.3390/en17092228 (registering DOI) - 06 May 2024
Abstract
Since the beginning of the 20th century, many studies have focused on the possibility of considering the sky as a body characterized by an apparent temperature, and several correlations to quantify the apparent sky temperature have been proposed. However, the different models were [...] Read more.
Since the beginning of the 20th century, many studies have focused on the possibility of considering the sky as a body characterized by an apparent temperature, and several correlations to quantify the apparent sky temperature have been proposed. However, the different models were obtained for specific meteorological conditions and through measurements at specific sites. The available models do not cover all locations in the world, although the evaluation of the sky temperature is fundamental for estimating the net radiative heat transfer between surfaces and the sky. Here, experimental data logged from a regional micrometeorological network (in Italy, within the Lazio region) were processed and used to identify an empirical model for the estimation of the sky temperature in the Mediterranean area. Data relating to atmospheric infrared radiation were used to compute the sky temperature, aiming at identifying a direct correlation with the ambient temperature. Climatic data acquired during 2022 were processed. The proposed correlations were compared with other models available in the literature, including the standard ISO 13790. This study proposes an annual-based direct correlation in its initial phase, demonstrating a superior fit to the measured data compared to well-known direct empirical models from the literature. Subsequently, quarterly-based correlations are introduced further in a secondary phase of the work to improve the model’s adaptation to experimental observations. The results reveal that quarterly-based correlations improve goodness-of-fit indexes compared to annual-based and well-known direct empirical correlations. Finally, a detached building was modeled via a dynamic code to highlight the influence of different correlations on annual energy needs. Full article
(This article belongs to the Special Issue Research Trends of Thermal Comfort and Energy Efficiency in Buildings)
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3 pages, 881 KiB  
Editorial
Wastewater Treatment: Functional Materials and Advanced Technology
by Jingtao Bi and Guohui Dong
Molecules 2024, 29(9), 2150; https://doi.org/10.3390/molecules29092150 (registering DOI) - 06 May 2024
Abstract
With accelerated advancements in various industries, water pollution has emerged as a significant issue characterized by two features: (1) the rapid increase in population and corresponding demands, leading to a sharp rise in wastewater discharge, and (2) the development of new technologies, contributing [...] Read more.
With accelerated advancements in various industries, water pollution has emerged as a significant issue characterized by two features: (1) the rapid increase in population and corresponding demands, leading to a sharp rise in wastewater discharge, and (2) the development of new technologies, contributing to a significant increase in the variety of emerging contaminants, resulting in a more complex wastewater composition [...] Full article
(This article belongs to the Special Issue Wastewater Treatment: Functional Materials and Advanced Technology)
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26 pages, 3604 KiB  
Article
Structure Design and Heat Transfer Performance Analysis of a Novel Composite Phase Change Active Cooling Channel Wall for Hypersonic Aircraft
by Weichen Li, Jieliang Zhao, Xiangbing Wu, Lulu Liang, Wenzhong Wang and Shaoze Yan
Micromachines 2024, 15(5), 623; https://doi.org/10.3390/mi15050623 (registering DOI) - 06 May 2024
Abstract
Efficient and stable heat dissipation structure is crucial for improving the convective heat transfer performance of thermal protection systems (TPSs) for hypersonic aircraft. However, the heat dissipation wall of the current TPS is limited by a single material and structure, inefficiently dissipating the [...] Read more.
Efficient and stable heat dissipation structure is crucial for improving the convective heat transfer performance of thermal protection systems (TPSs) for hypersonic aircraft. However, the heat dissipation wall of the current TPS is limited by a single material and structure, inefficiently dissipating the large amount of accumulated heat generated during the high-speed maneuvering flight of hypersonic aircraft. Here, a convection cooling channel structure of TPS is proposed, which is an innovative multi-level structure inspired by the natural honeycomb. An active cooling channel (PCM-HC) is designed by using a variable-density topology optimization method and filled with phase change material (PCM). Numerical simulations are used to investigate the thermal performance of the PCM-HC wall, focusing on the influence of PCM properties, structural geometric parameters, and PCM types on heat transfer characteristics. The results demonstrate that the honeycomb-like convection cooling channel wall, combined with PCM latent heat of phase change, exhibits superior heat dissipation capability. With a heat flux input of 50 kW/m2, the maximum temperature on the inner wall of PCM-HC is reduced by 12 K to 20 K. Different PCMs have opposing effects on heat transfer performance due to their distinct thermophysical properties. This work can provide a theoretical basis for the design of high-efficiency cooling channel, improving the heat dissipation performance in the TPS of hypersonic aircraft. Full article
(This article belongs to the Special Issue Heat Transfer and Fluid Flow in Microstructures)
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