The 2023 MDPI Annual Report has
been released!
 
13 pages, 18105 KiB  
Article
Al2O3 Coatings for Protection of Stainless Steel 316L against Corrosion in Zn-Al and Zn-Al-Mg
by Giovanni Paolo Alparone, David Penney, James Sullivan, James Edy and Christopher Mills
Coatings 2024, 14(5), 606; https://doi.org/10.3390/coatings14050606 (registering DOI) - 11 May 2024
Abstract
The production and quality of automotive-grade galvanised steel are affected by the limited service life of the pot roll bearings used in continuous galvanising lines. The journal bearings are subjected to severe degradation as they react with the molten Zn bath, and coatings [...] Read more.
The production and quality of automotive-grade galvanised steel are affected by the limited service life of the pot roll bearings used in continuous galvanising lines. The journal bearings are subjected to severe degradation as they react with the molten Zn bath, and coatings can provide corrosion protection to the bearing materials. This research investigates the performance of Al2O3 coatings applied via the HVOF thermal spray process to stainless steel 316L substrates. Immersion tests were conducted in baths of different compositions, namely GI (Zn-0.3 wt.% Al) and ZMA (Zn-1.5 wt.% Al-1.5 wt.% Mg). Material characterisation after testing showed evidence of coating degradation after 1 week, as the coating tended to crack and detach from the substrate, allowing the molten Zn to attack the underlying steel. The coefficient of thermal expansion of Al2O3 and steel was measured, and a difference of 13 × 10−6 K−1 was found, leading to the development of cracks in the coatings. Zn penetration through cracks was determined to be the main failure mechanism of the Al2O3 coatings, which otherwise remained inert to Zn-Al. Conversely, the coatings immersed in Zn-Al-Mg reacted with the Mg in the molten metal bath, showing that changing bath composition affected the performance of the coatings in molten Zn alloy. Full article
Show Figures

Figure 1

19 pages, 6005 KiB  
Article
Chloride Corrosion Process of Concrete with Different Water–Binder Ratios under Variable Temperature Drying–Wetting Cycles
by Lei Wang, Chunhong Chen, Ronggui Liu, Pinghua Zhu, Hui Liu, Hongwei Jiang and Jiang Yu
Materials 2024, 17(10), 2263; https://doi.org/10.3390/ma17102263 (registering DOI) - 11 May 2024
Abstract
In this paper, four water–binder ratios (w/b) of 0.29, 0.33, 0.39, and 0.46 were designed. A variable test temperature was implemented in the drying–wetting cycle test according to the temperature fluctuations in the actual service environment, and the constant temperature test was established [...] Read more.
In this paper, four water–binder ratios (w/b) of 0.29, 0.33, 0.39, and 0.46 were designed. A variable test temperature was implemented in the drying–wetting cycle test according to the temperature fluctuations in the actual service environment, and the constant temperature test was established as the control group. The mechanical properties and chloride corrosion resistance of concrete with different w/b ratios under variable temperature drying–wetting cycles, as well as the microstructure changes, phase composition, and damage mechanism inside the concrete, were investigated. The results showed that the mechanical properties of concrete increased first and then decreased with drying–wetting cycles increasing, whereas the chloride corrosion resistance continued to decline. A higher w/b exacerbated the deterioration of the concrete performance. A higher w/b increased the porosity, chloride diffusion depth, and chloride content, thus reducing the resistance of chloride corrosion. Compared with w/b = 0.29, the compressive strength, splitting tensile strength, mass, and relative dynamic elasticity modulus of w/b = 0.46 exposed to 60 drying–wetting cycles decreased by 54.50%, 52.44%, 0.96%, and 6.50%, respectively, while the porosity, peak chloride content, and erosion depth increased by 45.12%, 70.45%, and 45.00%. Compared with the drying–wetting cycle with a constant temperature, the cumulative damage caused by the drying–wetting cycle with a variable temperature was greater, resulting in more severe deterioration of concrete performance. The increase in the test temperature significantly accelerated the diffusion rate, penetration depth, and chemical binding capacity of chloride ions. After 60 drying–wetting cycles, the peak chlorine content and erosion depth of w/b = 0.46 under variable temperature cycles were 15.38% and 10.32% higher than those under a constant temperature, while the compressive strength, splitting tensile strength, mass, and relative dynamic elastic modulus were reduced by 7.76%, 14.81%, 0.33%, and 2.40%, respectively. Microscopic analysis confirmed that higher w/b and variable temperature cycles accelerated the decay of mechanical properties and the decline of chloride corrosion resistance. According to the numerical fitting analysis, the w/b should be 0.29~0.39 under the condition that the mechanical properties and chloride corrosion resistance of concrete are met. Full article
Show Figures

Figure 1

10 pages, 621 KiB  
Article
Effect of Concomitant Use of Polaprezinc and Vonoprazan-Based Triple Therapy for Helicobacter pylori Eradication
by Yuto Suzuki, Yasumi Katayama, Yo Fujimoto, Koji Toyoda, Morio Takahashi and Masaya Tamano
Gastroenterol. Insights 2024, 15(2), 386-395; https://doi.org/10.3390/gastroent15020027 (registering DOI) - 11 May 2024
Abstract
Background: Vonoprazan-based triple therapy has recently been reported as being more effective than proton pump inhibitors for the eradication of Helicobacter pylori (H. pylori), but it is apparent that the eradication rate could be further improved. Methods: We investigated the effect [...] Read more.
Background: Vonoprazan-based triple therapy has recently been reported as being more effective than proton pump inhibitors for the eradication of Helicobacter pylori (H. pylori), but it is apparent that the eradication rate could be further improved. Methods: We investigated the effect of the concomitant use of polaprezinc, a therapeutic agent for gastric ulcers, and vonoprazan-based seven-day triple therapy in patients with gastric ulcers compared to standard vonoprazan-based seven-day triple therapy in patients with atrophic gastritis. The regimen for the treatment of atrophic gastritis contained vonoprazan 20 mg, amoxicillin 750 mg, and clarithromycin 200 mg b.d. (VAC group) for seven days; and that for gastric ulcers contained VAC and polaprezinc 75 mg b.d. (VACP group) for seven days. Results: Between October 2021 and January 2023, 201 subjects were examined (VAC group, n = 165; VACP group, n = 36). In per-protocol (PP) analysis, the eradication rate was significantly higher in the VACP group (100%) than in the VAC group (88.2%) (p = 0.025). In patients with severe atrophic gastritis, eradication rates were significantly higher in the VACP group (100%) than in the VAC group (84.4%) in PP analysis. (p = 0.024). Conclusions: The concomitant use of polaprezinc and standard vonoprazan-based first-line eradication therapy is effective for H. pylori. Full article
(This article belongs to the Special Issue Recent Advances in the Management of Gastrointestinal Disorders)
Show Figures

Figure 1

8 pages, 501 KiB  
Commentary
PSMA-Targeted Therapy: Advancements in Detection and Treatment Modalities with Dr. Scott T. Tagawa
by Viviana Cortiana, Jade Gambill, Harshal Chorya, Diksha Mahendru, Fabiha Amin, Chandler H. Park and Yan Leyfman
Cancers 2024, 16(10), 1833; https://doi.org/10.3390/cancers16101833 (registering DOI) - 11 May 2024
Abstract
Prostate cancer is one of the most challenging malignancies due to its high incidence and prevalence, as it is the most frequently diagnosed non-skin cancer in men. The timely identification of prostate cancer and its metastasis is paramount for ensuring favorable outcomes for [...] Read more.
Prostate cancer is one of the most challenging malignancies due to its high incidence and prevalence, as it is the most frequently diagnosed non-skin cancer in men. The timely identification of prostate cancer and its metastasis is paramount for ensuring favorable outcomes for patients. Prostate-specific membrane antigen (PSMA) emerges as a promising biomarker for its detection, due to its specificity. This makes it an ideal target for the early identification of a metastatic phenotype. Situated on the membrane of tumor cells, PSMA facilitates the attachment of PSMA-targeting particles, enabling their detection through positron emission tomography (PET) scans with relative ease. Utilizing these imaging agents in conjunction with PET scans enhances the accuracy of prostate cancer tumor detection compared to PET scans alone. The advancement in prostate cancer imaging has paved the way for innovative treatment modalities. Prostate-specific membrane antigen-targeted radionuclide therapies (PSMA-TRT) exploit PSMA imaging agents to target identified prostate cancer malignancies with precise radiation, thereby reducing or eliminating the tumor mass. PSMA-TRT exhibits significant promise in prostate cancer therapy, evident from the notable declines in prostate-specific antigen (PSA) levels post treatment. However, PSMA-TRT carries both beneficial and adverse effects. While it represents a substantial leap forward in tumor cell imaging, PSMA-based antigens, being larger particles than ligands, offer prolonged imaging capabilities. Yet, the long-term effects of PSMA-TRT remain unknown, with the short-term adverse ones including fatigue, nausea, pain flares, and potential radiation exposure to others. Full article
(This article belongs to the Collection Commentaries from MedNews Week)
Show Figures

Figure 1

12 pages, 815 KiB  
Article
The Collaboration of Private Hospitals with the Public Health Service: The Case of La Rioja, Spain (1986–2019)
by María Teresa Jiménez-Buñuales, Pilar León-Sanz, Paulino González-Diego and Leonor González-Menorca
Healthcare 2024, 12(10), 990; https://doi.org/10.3390/healthcare12100990 (registering DOI) - 11 May 2024
Abstract
In Spain, the public National Health Service provides care to Spaniards and other residents and is tailored for a decentralized state of autonomies. Each Autonomous Community has legislative capacity in its organization and management. We study the case of the collaboration between private [...] Read more.
In Spain, the public National Health Service provides care to Spaniards and other residents and is tailored for a decentralized state of autonomies. Each Autonomous Community has legislative capacity in its organization and management. We study the case of the collaboration between private hospitals and the public health service in La Rioja, an Autonomous Community of Spain located in the North of the Iberian Peninsula, due to the importance that this relationship has in health systems, in general. We applied the case study method as a methodological tool in a long-term local study. The interpretation was carried out within a national context, which allows us to understand its meaning and the historical keys to hospital development in this region. Primary sources have been reviewed (mainly reports, catalogs, and censuses of hospitals from the Ministry of Health and the Government of La Rioja) and other secondary sources, located in archives, libraries, Institute of Rioja Studies, and Department of Health. The hospital system in La Rioja was characterized by a predominance of public beds compared with private ones, although there has been a growing trend in the number of private beds from 2013 onwards due to the incorporation of health and social care convalescent hospitals (two). La Rioja has been promoting public–private collaboration (seen as a strategic alliance) and focusing on agreements in the socio-health space, particularly using the management service agreement and the concession of work formulas. The development of the public health service in La Rioja, from 1986 to 2019, has been determined by a progressive lower dependence on specialized hospitals from other health services of neighboring Autonomous Communities and by a mixed public–private hospital system. Full article
Show Figures

Figure 1

8 pages, 476 KiB  
Article
From Mind to Plate to Pillow: Examining the Interplay of Mental Health, Eating Disorders, and Sleep Quality
by Efstratios Christodoulou, Verra Markopoulou and Antonios E. Koutelidakis
Int. J. Transl. Med. 2024, 4(2), 278-285; https://doi.org/10.3390/ijtm4020017 (registering DOI) - 11 May 2024
Abstract
In the context of the contemporary accelerated pace of life, emphasizing the importance of sleep quality is essential for enhancing overall well-being and health. Historically underestimated, recent studies highlight sleep’s vital importance for physical, mental, and emotional well-being. Chronic sleep deprivation is connected [...] Read more.
In the context of the contemporary accelerated pace of life, emphasizing the importance of sleep quality is essential for enhancing overall well-being and health. Historically underestimated, recent studies highlight sleep’s vital importance for physical, mental, and emotional well-being. Chronic sleep deprivation is connected to numerous health problems such as cardiovascular disease, diabetes, and weakened immune response. Additionally, lack of sleep can worsen stress, depression, and anxiety, impairing daily life and overall quality of life. This study investigates the link between poor sleep quality and key factors affecting wellness, such as mental health and eating disorders. Through a cross-sectional analysis involving 407 participants, utilizing established measures including the Depression Anxiety Stress Scale (DASS-21), the Eating Disorder Examination Questionnaire Short (EDE-QS), and the single-item Sleep Quality Scale (SQS), data were collected and analyzed using SPSS v28 and R-Statistics. The findings reveal a significant correlation (p < 0.05) between DASS-21, EDE-QS, and SQS, indicating that individuals experiencing poor sleep quality exhibit higher levels of depression, anxiety, and stress. Furthermore, multinomial logistic regression analysis highlights low sleep quality as a risk factor for both mental health (OR: 1.071, 95% CI: 1.042, 1.102, p < 0.05, low vs. high sleep quality) and eating disorders (OR: 1.047, 95% CI: 1.004, 1.092, p < 0.05, low vs. high sleep quality). Overall, these results underscore the critical role of sleep quality in mental health and suggest that insomnia is a predictive factor for both poor mental well-being and disordered eating habits. The main contribution of this study is its identification of poor sleep quality as a common risk factor linking mental health issues and eating disorders, which emphasizes the need for integrated treatment strategies focusing on sleep improvement. Further research through randomized controlled trials is warranted to validate the findings of this cross-sectional study. Full article
Show Figures

Figure 1

11 pages, 1657 KiB  
Article
Pasta Drying Defects as a Novel Ingredient for Hard Dough Biscuits: Effect of Drying Temperature and Granulation on Its Functionality
by Jafar Mohammadzadeh Milani, Saeed Moammaei, Sepideh Haghighat Kharazi and Maryam Mohammadi Berenjestanaki
Foods 2024, 13(10), 1487; https://doi.org/10.3390/foods13101487 (registering DOI) - 11 May 2024
Abstract
Various drying temperatures impact the texture of pasta and cause different drying defects. These by-products could reflect techno-functional characteristics which are suitable for cereal products. This research addresses the influence of low (LT) and high (HT) drying pasta defects with two granulations on [...] Read more.
Various drying temperatures impact the texture of pasta and cause different drying defects. These by-products could reflect techno-functional characteristics which are suitable for cereal products. This research addresses the influence of low (LT) and high (HT) drying pasta defects with two granulations on the theoretical and functional characteristics of hard dough biscuits. By shifting from a LT to HT drying temperature, a higher onset and peak temperature was found due to the higher mobility of starch molecules with increasing crystalline stability. The lowest transition enthalpy of biscuit formulation was also observed for higher incorporation of fine HT pasta regrinds. The algebraic model of dough with consistography determined the poor-extensible gluten and a high resistance with a greater value of P/L and P indices for LT regrinds. Scanning electron microscopy revealed a heavy and dense texture with immersed starch granules for additional fine regrinds while coarse samples caused swell granules with greater diameter. Moreover, fine HT regrinds reflected the lowest L* value for biscuit due to heat gradient tension with the hard milling process which leads to protein denaturation with decreasing nitrogenous. Full article
(This article belongs to the Section Grain)
Show Figures

Graphical abstract

3 pages, 175 KiB  
Editorial
Unraveling the Complexity of Asthma: Insights from Omics Approaches
by Esther Herrera-Luis and Natalia Hernandez-Pacheco
Biomedicines 2024, 12(5), 1062; https://doi.org/10.3390/biomedicines12051062 (registering DOI) - 11 May 2024
Abstract
Asthma is a heterogeneous respiratory disease that represents a substantial social and economic burden [...] Full article
(This article belongs to the Special Issue Recent Advances in Asthma Research in a Multiomics Era)
29 pages, 1152 KiB  
Article
A Descriptive and Experimental Investigation of Recursive Compounds in English: Their Semantic, Syntactic, and Phonological Characterization
by Makiko Mukai
Languages 2024, 9(5), 175; https://doi.org/10.3390/languages9050175 (registering DOI) - 11 May 2024
Abstract
The aim of this study is to experimentally capture the semantic, syntactic, and phonological properties of recursive compounds in English. We asked 22 native speakers of English to judge the semantic, syntactic, and phonological properties of 20 recursive compounds that are inherently ambiguous [...] Read more.
The aim of this study is to experimentally capture the semantic, syntactic, and phonological properties of recursive compounds in English. We asked 22 native speakers of English to judge the semantic, syntactic, and phonological properties of 20 recursive compounds that are inherently ambiguous in interpretation (e.g., university entrance exam). We found variations among the participants in each of these three basic aspects. For semantic interpretation, there was a tendency among the participants to prefer left-branching interpretation (‘an exam for university entrance’) over right-branching interpretation (‘an entrance exam in a university’). Using a lexical integrity effect for the syntactic tests, it was found that certain recursive compounds allow for coordination inside. Phonologically, speaker variation was observed in whether and how recursive compounds were pronounced, with 16 participants obeying the Lexical Category Prominence Rule. Full article
(This article belongs to the Special Issue Word-Formation Processes in English)
Show Figures

Figure 1

13 pages, 283 KiB  
Article
Nonsuicidal Self-Injury and Suicidal Beliefs in Adolescent Inpatient
by Jelena Kostic, Olivera Žikić, Vladimir Djordjević, Aleksandra Ristić and Žilijeta Krivokapić
Medicina 2024, 60(5), 796; https://doi.org/10.3390/medicina60050796 (registering DOI) - 11 May 2024
Abstract
Background and Objectives: Although nonsuicidal self-injury (NSSI), by definition, excludes suicidal intent, numerous studies show associations between NSSI and suicidal phenomena in clinical and outpatient adolescent samples. Given the growing interest in the relationship between NSSI and suicidal phenomena, the present study aimed [...] Read more.
Background and Objectives: Although nonsuicidal self-injury (NSSI), by definition, excludes suicidal intent, numerous studies show associations between NSSI and suicidal phenomena in clinical and outpatient adolescent samples. Given the growing interest in the relationship between NSSI and suicidal phenomena, the present study aimed to investigate the relationship between NSSI and suicidal beliefs in adolescent psychiatric inpatients. Materials and Methods: The study sample included 50 adolescent inpatients at a specialized facility, with a mean age of 15.44 ± 1.39, who fulfilled DSM-5 criteria for NSSI. For study purposes, we use the Ottawa Self-Injury Inventory (OSI) and Brief Suicide Cognitions Scale (B-SCS). Statistical data processing was performed in the R software 4.3.0 (R Core Team, Vienna, Austria). Results: Of all NSSI functions, the Internal ER function score was the highest (18.72 ± 7.08), followed by External ER (8.10 ± 3.11), Social Influence (5.88 ± 5.37), and Sensation Seeking (3.44 ± 2.98). The mean Craving (C) score was 14.06 ± 7.51. The mean value of the B-SCS score was 19.54 ± 5.24. It was found that the B-SCS score is significantly related to Internal ER (r = 0.441, p < 0.001) and Craving (r = 0.297, p = 0.036). The multivariable model shows that internal ER function and participants’ age are significantly related to the B-SCS score. Conclusion: Despite the limitations of the study, it is emphasized that cognitions occurring across the fluid suicidal belief system alone do not fully capture the complexity of suicide, but assessing the suicidal belief system in NSSI inpatient adolescents could nevertheless provide helpful information for identifying individuals who may have an elevated vulnerability to experiencing suicidal ideas and behaviors over time. Full article
(This article belongs to the Section Psychiatry)
23 pages, 7353 KiB  
Article
The Impact of Replacing Synchronous Generators with Renewable-Energy Technologies on the Transient Stability of the Mangystau Power System: An Introduction to Flexible Automatic Dosage of Exposures
by Yerzhan Aisayev, Kazhybek Tergemes, Algazy Zhauyt, Saken Sheryazov and Kairat Bakenov
Energies 2024, 17(10), 2314; https://doi.org/10.3390/en17102314 (registering DOI) - 11 May 2024
Abstract
Since the creation of the first parallel electrical power systems around the world, the rotor angle stability of synchronously operating generators has been one of the most crucial and challenging problems. In modern electricity networks, including in Kazakhstan, where renewable energy technologies are [...] Read more.
Since the creation of the first parallel electrical power systems around the world, the rotor angle stability of synchronously operating generators has been one of the most crucial and challenging problems. In modern electricity networks, including in Kazakhstan, where renewable energy technologies are rapidly emerging, the issue of stability takes on even greater importance due to the technical shortcomings of inverter-based generation. In this framework, an analysis of rotor angle transient stability was carried out when replacing existing synchronous generators with doubly fed induction generators under a certain pre-emergency mode. A critical proportion of active power generation by DFIG units was identified at which transient stability can still be maintained due to the sufficient stored kinetic energy of the synchronous machines remaining in operation. In addition, two simple solutions were investigated to improve transient stability, such as an increased time of the automatic reclosure operation and the use of special load-shedding automation. Finally, this paper proposes a novel type of flexible smart-grid automation that is capable of monitoring the main operating parameters and issuing control actions depending on inertia, the availability of wind resources, and the load of the system as a whole. For this analysis, a real power system from the Mangystau region in Kazakhstan was considered, and the PowerWorld software 23 was used. Full article
(This article belongs to the Section A: Sustainable Energy)
Show Figures

Figure 1

12 pages, 2718 KiB  
Article
Defining the miRnome of Saphenous Vein Smooth Muscle Cells from Patients with Type 2 Diabetes Mellitus
by Alisah Hussain, Yaw Asare-Amankwah, Shehryar Qureshi, M. Julie Thornton, Timothy M. Palmer, Israel O. Bolanle, Ian C. Wood, Neil A. Turner, Karen E. Porter, Andrew Tedder and Kirsten Riches-Suman
Diabetology 2024, 5(2), 178-189; https://doi.org/10.3390/diabetology5020014 (registering DOI) - 11 May 2024
Abstract
Type 2 diabetes mellitus (T2DM) patients suffer premature development of cardiovascular disease and commonly require cardiac revascularization using the autologous saphenous vein (SV). Smooth muscle cells (SMCs) are the principal cell type within the vascular wall and are dysfunctional in T2DM SV-SMCs, yet [...] Read more.
Type 2 diabetes mellitus (T2DM) patients suffer premature development of cardiovascular disease and commonly require cardiac revascularization using the autologous saphenous vein (SV). Smooth muscle cells (SMCs) are the principal cell type within the vascular wall and are dysfunctional in T2DM SV-SMCs, yet the mechanisms underpinning this are incompletely understood. The purpose of this study was to interrogate differential microRNA (miRNA) expression in SV-SMCs to enhance our understanding of T2DM SV-SMC phenotypic change. miRNA expression in primary human SV-SMCs from T2DM and non-diabetic (ND) donors was determined using an array (n = 6 each of ND and T2DM SV-SMCs). Differentially expressed miRNAs were ranked, and functional annotation of the 30 most differentially expressed miRNAs using DAVID and KEGG analysis revealed pathways related to SMC phenotype, including proliferation, migration, cytokine production and cell signaling. After selecting miRNAs known to be involved in SMC phenotypic regulation, miR-17, miR-29b-2, miR-31, miR-130b and miR-491 were further validated using qRT-PCR (n = 5 each of ND and T2DM SV-SMC), with miR-29b-2 subsequently being removed from further investigation. Potential mRNA targets were identified using mirDIP. Predicted target analysis highlighted likely dysregulation in transcription, epigenetic regulation, cell survival, intracellular signaling and cytoskeletal regulation, all of which are known to be dysfunctional in T2DM SV-SMCs. In conclusion, this paper identified four miRNAs that are dysregulated in T2DM SV-SMCs and are implicated in functional changes in the behavior of these cells. This provides a step forward in our understanding of the molecular and epigenetic regulation of vascular dysfunction in T2DM. Full article
(This article belongs to the Special Issue Exclusive Papers Collection of Editorial Board Members in Diabetology)
Show Figures

Figure 1

15 pages, 7004 KiB  
Article
Competing Loyalties in a Contested Space: The Lutheran Middle School in Hunan Province, 1907–1914
by Silje Dragsund Aase
Religions 2024, 15(5), 589; https://doi.org/10.3390/rel15050589 (registering DOI) - 11 May 2024
Abstract
This study explores the complexities of mission–state and church–state relations from a micro-level perspective, asking how the missionaries, teachers, and pupils at the Lutheran Middle School in Hunan Province negotiated conflicting claims on church membership and national citizenship. As historian Stephen R. Platt [...] Read more.
This study explores the complexities of mission–state and church–state relations from a micro-level perspective, asking how the missionaries, teachers, and pupils at the Lutheran Middle School in Hunan Province negotiated conflicting claims on church membership and national citizenship. As historian Stephen R. Platt points out, Hunan is not a microcosm of modern China.. When dealing with nationalism in a Hunanese context, it is sometimes more accurate to speak of Hunanese nationalism rather than Chinese nationalism. This micro-level case study sheds light on the general trends of changing mission-state and church-state encounters, but it also emphasizes unexpected expressions of local Christianity in a context that has not so far been given much scholarly attention. Full article
(This article belongs to the Special Issue Expressions of Chinese Christianity in Texts and Contexts)
Show Figures

Figure 1

16 pages, 432 KiB  
Article
From Understanding Śūnyatā to Connecting It with the Tathāgatagarbha: The Emergence and Evolution of Sengzhao’s Emptiness of the Nonabsolute
by Benhua Yang
Religions 2024, 15(5), 588; https://doi.org/10.3390/rel15050588 (registering DOI) - 11 May 2024
Abstract
Historical transmission and other controversies related to Sengzhao’s Things Do Not Shift have long been a subject of scholarly attention. However, his essay Emptiness of the Nonabsolute has been insufficiently studied, despite being traditionally deemed emblematic of the Chinese understanding of Mādhyamaka philosophy. [...] Read more.
Historical transmission and other controversies related to Sengzhao’s Things Do Not Shift have long been a subject of scholarly attention. However, his essay Emptiness of the Nonabsolute has been insufficiently studied, despite being traditionally deemed emblematic of the Chinese understanding of Mādhyamaka philosophy. The present study shows that this essay has also historically generated divisions and debates in the Chinese context. It finds that Emptiness of the Nonabsolute expresses the Mādhyamaka philosophy of emptiness in a distinctly Chinese manner by grounding itself in the principle of dependent origination, and by transforming issues of being and nonbeing and the name and the “thing-in-itself” into conditional emergence. Nevertheless, Sengzhao’s essay evoked the two markedly distinct construals of Buzhengukong 不真故空 and Bushizhenkong 不是真空 as Tathāgatagarbha and Buddha-nature philosophy within Chinese Buddhism. Bushizhenkong directly aligned Sengzhao’s ostensibly representative theory of Mādhyamaka emptiness in China with the doctrinal framework of Tathāgatagarbha and Buddha-nature, triggering almost a millennium-long period of discussions and controversies. Full article
(This article belongs to the Special Issue The Interreligious Dialogue: Philosophical Perspectives)
12 pages, 523 KiB  
Review
Redefining Surgical Materials: Applications of Silk Fibroin in Osteofixation and Fracture Repair
by Jose A. Foppiani, Iulianna C. Taritsa, Lacey Foster, Armaan Patel, Angelica Hernandez Alvarez, Daniela Lee, Gavin J. Lin, Theodore C. Lee, Dominika Gavlasova, Maria J. Escobar-Domingo, David L. Kaplan and Samuel J. Lin
Biomimetics 2024, 9(5), 286; https://doi.org/10.3390/biomimetics9050286 (registering DOI) - 11 May 2024
Abstract
Silk and silk derivatives have emerged as a possible alternative in surgical device development, offering mechanical strength, biocompatibility, and environmental sustainability. Through a systematic review following PRISMA guidelines, this study evaluated silk fibroin’s application across pre-clinical and clinical settings, focusing on its role [...] Read more.
Silk and silk derivatives have emerged as a possible alternative in surgical device development, offering mechanical strength, biocompatibility, and environmental sustainability. Through a systematic review following PRISMA guidelines, this study evaluated silk fibroin’s application across pre-clinical and clinical settings, focusing on its role as screws and plates for osteofixation. A comprehensive search yielded 245 studies, with 33 subjected to full-text review and 15 ultimately included for qualitative analysis. The findings underscore silk fibroin’s superior properties, including its tunable degradation rates and ability to be functionalized with therapeutic agents. In vivo and in vitro studies demonstrated its efficacy in enhancing bone healing, offering improved outcomes in osteofixation, particularly for craniofacial defects. Silk fibroin’s remarkable attributes in biodegradation and drug release capabilities underscore its potential to enhance patient care. Ultimately, silk fibroin’s integration into surgical practices promises a revolution in patient outcomes and environmental sustainability. Its versatility, coupled with the continuous progress in fabrication techniques, signals a promising horizon for its widespread acceptance in the medical field, potentially establishing a new benchmark in surgical treatment. Further research is expected to solidify the transition of silk products from basic science to patient care, paving the way for widespread use in various surgical applications. Full article
(This article belongs to the Special Issue Silk-Based Bioinspired Materials: Design and Applications)
Show Figures

Figure 1

11 pages, 1703 KiB  
Article
Influence of Lipopolysaccharide-Interacting Peptides Fusion with Endolysin LysECD7 and Fatty Acid Derivatization on the Efficacy against Acinetobacter baumannii Infection In Vitro and In Vivo
by Xiaowan Li, Wenwen Shangguan, Xiaoqian Yang, Xiaoyue Hu, Yanan Li, Wenjie Zhao, Meiqing Feng and Jun Feng
Viruses 2024, 16(5), 760; https://doi.org/10.3390/v16050760 (registering DOI) - 11 May 2024
Abstract
Acinetobacter baumannii has developed multiple drug resistances, posing a significant threat to antibiotic efficacy. LysECD7, an endolysin derived from phages, could be a promising therapeutic agent against multi-drug resistance A. baumannii. In this study, in order to further enhance the antibacterial efficiency [...] Read more.
Acinetobacter baumannii has developed multiple drug resistances, posing a significant threat to antibiotic efficacy. LysECD7, an endolysin derived from phages, could be a promising therapeutic agent against multi-drug resistance A. baumannii. In this study, in order to further enhance the antibacterial efficiency of the engineered LysECD7, a few lipopolysaccharide-interacting peptides (Li5, MSI594 and Li5-MSI) were genetically fused with LysECD7. Based on in vitro antibacterial activity, the fusion protein Lys-Li5-MSI was selected for further modifications aimed at extending its half-life. A cysteine residue was introduced into Lys-Li5-MSI through mutation (Lys-Li5-MSIV12C), followed by conjugation with a C16 fatty acid chain via a protonation substitution reaction(V12C-C16). The pharmacokinetic profile of V12C-C16 exhibited a more favorable characteristic in comparison to Lys-Li5-MSI, thereby resulting in enhanced therapeutic efficacy against lethal A. baumannii infection in mice. The study provides valuable insights for the development of novel endolysin therapeutics and proposes an alternative therapeutic strategy for combating A. baumannii infections. Full article
(This article belongs to the Special Issue Bacteriophage Lytic Proteins)
Show Figures

Figure 1

15 pages, 6326 KiB  
Article
The Scratch Resistance of a Plasma-Assisted DUPLEX-Treated 17-4 Precipitation-Hardened Stainless Steel Additively Manufactured by Laser Powder Bed Fusion
by Arturo Gómez-Ortega, Julián Andrés Pinilla-Bedoya, Carolina Ortega-Portilla, Christian Félix-Martínez, Guillermo César Mondragón-Rodríguez, Diego Germán Espinosa-Arbeláez, James Pérez-Barrera, Juan Manuel González-Carmona and Edgar Adrián Franco Urquiza
Coatings 2024, 14(5), 605; https://doi.org/10.3390/coatings14050605 (registering DOI) - 11 May 2024
Abstract
Additive manufacturing (AM) or 3D printing of metals is gaining popularity due to its flexibility when fabricating parts with highly complex designs, as well as when simplifying manufacturing steps and optimizing process times. In this investigation, 17-4 PH stainless steel was additively manufactured [...] Read more.
Additive manufacturing (AM) or 3D printing of metals is gaining popularity due to its flexibility when fabricating parts with highly complex designs, as well as when simplifying manufacturing steps and optimizing process times. In this investigation, 17-4 PH stainless steel was additively manufactured using Laser Powder Bed Fusion (L-PBF), followed by functionalization through a DUPLEX treatment. This treatment involved a plasma-assisted nitriding process, followed by the deposition of an arc-PVD c-Al0.7Cr0.3N hard coating. The microstructural modifications resulting from plasma nitriding (such as the formation of Fe2,3N and Fe4N and the αN or expanded martensite phases) and the surface improvements with the c-Al0.7Cr0.3N coating on the 3D-printed 17-4 PH steel are evaluated in comparison to conventionally manufactured 17-4 PH steel. These microstructural characteristics are correlated with the mechanical response of the treated surfaces. As a result of the plasma nitriding process, the hardness of the 3D-printed 17-4 PH SS increased by approximately 260%. The wear, measured through dynamic and static scratch testing, was reduced by approximately 31%. This improvement was attributed to the modification of adhesive failure mechanisms, leading to a reduction in wear volume, improved coating adhesion, and enhanced scratch resistance. Full article
(This article belongs to the Topic Additive Manufacturing of Architected Metallic Materials)
Show Figures

Figure 1

17 pages, 1437 KiB  
Article
Exploring Zeros of Hermite-λ Matrix Polynomials: A Numerical Approach
by Maryam Salem Alatawi, Manoj Kumar, Nusrat Raza and Waseem Ahmad Khan
Mathematics 2024, 12(10), 1497; https://doi.org/10.3390/math12101497 (registering DOI) - 10 May 2024
Abstract
This article aims to introduce a set of hybrid matrix polynomials associated with λ-polynomials and explore their properties using a symbolic approach. The main outcomes of this study include the derivation of generating functions, series definitions, and differential equations for the newly [...] Read more.
This article aims to introduce a set of hybrid matrix polynomials associated with λ-polynomials and explore their properties using a symbolic approach. The main outcomes of this study include the derivation of generating functions, series definitions, and differential equations for the newly introduced two-variable Hermite λ-matrix polynomials. Furthermore, we establish the quasi-monomiality property of these polynomials, derive summation formulae and integral representations, and examine the graphical representation and symmetric structure of their approximate zeros using computer-aided programs. Finally, this article concludes by introducing the idea of 1-variable Hermite λ matrix polynomials and their structure of zeros using a computer-aided program. Full article
(This article belongs to the Section Computational and Applied Mathematics)
Show Figures

Figure 1

9 pages, 304 KiB  
Article
Comparative Analysis of Frailty Risk and Associated Factors: Community-Based vs. Open Recruitment Groups
by Tatsunori Shimizu, Ayuto Kodama, Yu Kume, Masahiro Iwakura, Katsuya Iijima and Hidetaka Ota
Int. J. Environ. Res. Public Health 2024, 21(5), 611; https://doi.org/10.3390/ijerph21050611 (registering DOI) - 10 May 2024
Abstract
Background: Frailty leads to vulnerability to stress, impaired daily functioning, and an increased need for care. Frailty is considered reversible, and it is crucial to detect the risk of frailty early and investigate factors that may delay its progression. Objectives: To identify tests [...] Read more.
Background: Frailty leads to vulnerability to stress, impaired daily functioning, and an increased need for care. Frailty is considered reversible, and it is crucial to detect the risk of frailty early and investigate factors that may delay its progression. Objectives: To identify tests that can explain frailty risk and compare the situation of local residents with and without frailty support. Methods: Participants were recruited in two ways: through public advertisements in Akita City (open recruitment group) and through invites from frailty supporters in their immediate communities (community-based group). We examined the differences in frailty risk and oral, motor, and social functions between the two groups and identified factors associated with frailty risk in both groups. Results: The community-based group exhibited a lower risk of frailty than the open recruitment group despite having more older members on average. Additionally, the community-based group demonstrated better social functioning than the open-recruitment group. Furthermore, factors such as oral diadochokinesis (ODK), one-leg stand test (OLS), and grip strength (GS) showed significant association with frailty risk. Conclusion: The ODK, OLS, and GS were identified as factors explaining frailty risk, and Frailty Supporters may reduce the risk of frailty. Full article
14 pages, 8664 KiB  
Article
A Multi-Sensor 3D Detection Method for Small Objects
by Yuekun Zhao, Suyun Luo, Xiaoci Huang and Dan Wei
World Electr. Veh. J. 2024, 15(5), 210; https://doi.org/10.3390/wevj15050210 (registering DOI) - 10 May 2024
Abstract
In response to the limited accuracy of current three-dimensional (3D) object detection algorithms for small objects, this paper presents a multi-sensor 3D small object detection method based on LiDAR and a camera. Firstly, the LiDAR point cloud is projected onto the image plane [...] Read more.
In response to the limited accuracy of current three-dimensional (3D) object detection algorithms for small objects, this paper presents a multi-sensor 3D small object detection method based on LiDAR and a camera. Firstly, the LiDAR point cloud is projected onto the image plane to obtain a depth image. Subsequently, we propose a cascaded image fusion module comprising multi-level pooling layers and multi-level convolution layers. This module extracts features from both the camera image and the depth image, addressing the issue of insufficient depth information in the image feature. Considering the non-uniform distribution characteristics of the LiDAR point cloud, we introduce a multi-scale voxel fusion module composed of three sets of VFE (voxel feature encoder) layers. This module partitions the point cloud into grids of different sizes to improve detection ability for small objects. Finally, the multi-level fused point features are associated with the corresponding scale’s initial voxel features to obtain the fused multi-scale voxel features, and the final detection results are obtained based on this feature. To evaluate the effectiveness of this method, experiments are conducted on the KITTI dataset, achieving a 3D AP (average precision) of 73.81% for the hard level of cars and 48.03% for the hard level of persons. The experimental results demonstrate that this method can effectively achieve 3D detection of small objects. Full article
(This article belongs to the Special Issue Deep Learning Applications for Electric Vehicles)
Show Figures

Figure 1

20 pages, 2328 KiB  
Review
Factors Influencing Seed Dormancy and Germination and Advances in Seed Priming Technology
by Yanfeng Fu, Li Ma, Juncai Li, Danping Hou, Bo Zeng, Like Zhang, Chunqing Liu, Qingyu Bi, Jinsong Tan, Xinqiao Yu, Junguo Bi and Lijun Luo
Plants 2024, 13(10), 1319; https://doi.org/10.3390/plants13101319 (registering DOI) - 10 May 2024
Abstract
Seed dormancy and germination play pivotal roles in the agronomic traits of plants, and the degree of dormancy intuitively affects the yield and quality of crops in agricultural production. Seed priming is a pre-sowing seed treatment that enhances and accelerates germination, leading to [...] Read more.
Seed dormancy and germination play pivotal roles in the agronomic traits of plants, and the degree of dormancy intuitively affects the yield and quality of crops in agricultural production. Seed priming is a pre-sowing seed treatment that enhances and accelerates germination, leading to improved seedling establishment. Seed priming technologies, which are designed to partially activate germination, while preventing full seed germination, have exerted a profound impact on agricultural production. Conventional seed priming relies on external priming agents, which often yield unstable results. What works for one variety might not be effective for another. Therefore, it is necessary to explore the internal factors within the metabolic pathways that influence seed physiology and germination. This review unveils the underlying mechanisms of seed metabolism and germination, the factors affecting seed dormancy and germination, as well as the current seed priming technologies that can result in stable and better germination. Full article
(This article belongs to the Special Issue The Physiology of Abiotic Stress in Plants)
Show Figures

Figure 1

21 pages, 6000 KiB  
Article
Modeling of a Solar Thermal Plant to Produce Hot Water and Steam for a Brewery Factory
by Kalo G. Traslosheros-Zavala, Ivett Zavala-Guillén, Alexis Acuña-Ramírez, Manuel Cervantes-Astorga, Daniel Sauceda-Carvajal and Francisco J. Carranza-Chávez
Energies 2024, 17(10), 2300; https://doi.org/10.3390/en17102300 (registering DOI) - 10 May 2024
Abstract
The environmental impact caused by the intensive exploitation of fossil fuels to generate heat and electricity has already reached a critical level. Also, as the industrial sector is the largest energy consumer, mainly in the form of heat, it has then become compulsive [...] Read more.
The environmental impact caused by the intensive exploitation of fossil fuels to generate heat and electricity has already reached a critical level. Also, as the industrial sector is the largest energy consumer, mainly in the form of heat, it has then become compulsive to implement the use of renewable solar heat in industrial processes, such as those found in the food processing and beverages industries, which do not require high temperatures. Consequently, this study examines the viability of supplying heat as hot water at 80 °C and saturated steam at 160 °C to a medium-sized brewery factory through a hybrid solar plant composed of flat plate and parabolic trough collectors and sensible thermal energy storage. The study was conducted numerically using the meteorological conditions of a city different from that where the factory is located because it benefits from higher insolation levels. The mean annual solar fractions achieved were 49.9% for hot water production and 37.3% for steam generation, at a levelized cost of heat of 0.032 USD/kWh, which can be considered competitive if compared against the values reported in other similar solar projects. Also, the decrease in fossil fuel consumption allowed an annual reduction of 252 tons of carbon dioxide emissions. Full article
(This article belongs to the Section A2: Solar Energy and Photovoltaic Systems)
Show Figures

Figure 1

19 pages, 3011 KiB  
Article
An Evaluation of the Anxiolytic Potential of Amentoflavone in Adult Zebrafish Undergoing Alcohol Withdrawal: In Vivo and In Silico Studies
by Lucas Soares Frota, Wildson Max Barbosa da Silva, Daniela Ribeiro Alves, Sacha Aubrey Alves Rodrigues Santos, Gabriela Alves do Nascimento, Francisco Ernani Alves Magalhães, Adriana Rolim Campos and Selene Maia de Morais
Receptors 2024, 3(2), 201-219; https://doi.org/10.3390/receptors3020011 (registering DOI) - 10 May 2024
Abstract
The constant use of alcoholic beverages can deregulate serotonin levels, affecting neurotransmitters and triggering symptoms of anxiety. In this context, the objective of this work was to evaluate the anxiolytic potential and possible action mechanisms of the natural compound amentoflavone against the deleterious [...] Read more.
The constant use of alcoholic beverages can deregulate serotonin levels, affecting neurotransmitters and triggering symptoms of anxiety. In this context, the objective of this work was to evaluate the anxiolytic potential and possible action mechanisms of the natural compound amentoflavone against the deleterious effects caused by alcohol withdrawal on the behavior of adult zebrafish (aZF). The experiments showed that amentoflavone did not change locomotion and did not cause toxicity in aZF during up to 96 h of analysis, with a median lethal concentration (LC50) greater than 1.0 mg/mL. The reversal of anxiety by pretreatment with granisetron suggested that the anxiolytic effect of amentoflavone is dependent on serotonergic 5-HT3A/3B receptors. Furthermore, amentoflavone reversed anxiety due to flumazenil pretreatment, suggesting a dependence on the GABAA receptor. The three concentrations of amentoflavone tested were effective in treating anxiety resulting from alcohol withdrawal. In silico analysis validated the in vivo results, supporting the idea that the interaction of amentoflavone with the protein occurs in a more stable manner than reference compounds. Amid growing interest in natural alternatives to treat anxiety disorders, amentoflavone is a potential candidate for a new anxiolytic compound that acts specifically on the 5HT3A/3B and GABAergic serotonergic pathways. Full article
Show Figures

Figure 1

Open Access Journals

Browse by Indexing Browse by Subject Selected Journals
Back to TopTop