bluuebunny/crossref_metadata_2025 huggingface dataset:
Analysis and Optimization of Dynamic and Static Characteristics of the Compliant-Amplifying Mechanisms
Authors: Wang Jin , Jing Zijian , Xie Zongliang , Ning Zongqi , Qi Bo
Published: July 2023

Compliant amplifying mechanisms are used widely in high-precision instruments driven by piezoelectric actuators, and the dynamic and static characteristics of these mechanisms are closely related to instrument performance. Although the majority of existing research has focused on analysis of their static characteristics, the dynamic characteristics of the mechanisms affect their response speeds directly. Therefore, this paper proposes a comprehensive theoretical model of compliant-amplifying mechanisms based on the multi-body system transfer matrix method to analyze the dynamic and static characteristics of these mechanisms. The effects of the main amplifying mechanism parameters on the displacement amplification ratio and the resonance frequency are analyzed comprehensively using the control variable method. An iterative optimization algorithm is also used to obtain specific parameters that meet the design requirements. Finally, simulation analyses and experimental verification tests are performed. The results indicate the feasibility of using the proposed theoretical compliant-amplifying mechanism model to describe the mechanism’s dynamic and static characteristics, which represents a significant contribution to the design and optimization of compliant-amplifying mechanisms.
Flotation Separation of Smithsonite from Calcite Using Cupferron as a Collector
Authors: Wang Qingqing , Sun Lei , Cao Yang , Wang Xin , Qiao Yi , Liu Guobin , Xiang Meitao , Sun Wei
Published: July 2023

The flotation separation of smithsonite and calcite is difficult due to their similar surface properties. In this study, cupferron was applied as a collector to realize the separation of smithsonite and calcite. Micro-flotation experiment results indicated that smithsonite and calcite express different floatability after treatment with cupferron. The maximum recovery difference was 63%, from a cupferron concentration of 2 × 10−4 mol/L at pH 8. Based on a series of tests, including an adsorption test, Fourier-transform infrared (FTIR), zeta potential and X-ray photoelectron spectroscopy (XPS), the selective collection mechanism of cupferron was studied. It was found that the cupferron was more easily adsorbed on the surface of smithsonite and the reaction was violent. The adsorption capacity of the cupferron on the surface of smithsonite was higher than that of calcite, and the surface potential shift was greater. The cupferron chelated with the exposed Zn sites on the smithsonite surface to form a N-O-Zn ring structure. This special chelate structure caused the smithsonite surface to be more hydrophobic, which confirmed that the cupferron can selectively collect smithsonite instead of calcite.
Droplet Evaporation Process of a Fluorobenzene + n-Octane + Polystyrene Mixture
Authors: Wang Wei , Zhou Zhendong , Zhou Bo
Published: July 2023

The vapor–liquid equilibrium of the fluorobenzene–polystyrene binary polymer solution at 303.15 K was measured using a static pressure device. The vapor–liquid equilibrium of the fluorobenzene–n-octane–polystyrene ternary solution in a partial concentration range under normal pressure was determined using an improved Othmer equilibrium still, in which the octane concentration was low. Three activity coefficient models, poly-NRTL, UNIQUAC, and M-UNIQUAC-LBY, were utilized to correlate the experimental data of binary and ternary solutions, and the component activities of the fluorobenzene–n-octane–polystyrene solution at 303.15 K were predicted. A mathematical model based on the Stefan flow was developed to simulate the evaporation process of composite spherical droplets. The activity predicted by the activity coefficient model was used for numerical simulations, and compared with simulations using the activity following Raoult’s law. The comparative analysis revealed that simulations based on Raoult’s law and activity coefficient models yielded similar results when the mass fraction of fluorobenzene exceeded 0.6. However, in the later stages of evaporation, the calculations based on Raoult’s law predicted a 10% shorter drying time for fluorobenzene. The activity coefficient models provided a better approximation and exhibited similar droplet diameter shrinking behaviors to the actual evaporation process.
Production of Activated Carbon from Sifted Coke and Determination of Its Physicochemical Characteristics
Authors: Ordabaeva Aigul T. , Muldakhmetov Zainulla M. , Gazaliev Arstan M. , Kim Sergey V. , Shaikenova Zhazira S. , Meiramov Mazhit G.
Published: July 2023

The possibility of obtaining effective coal sorbents from a low-liquid product of coke chemical production—coke fines—has been studied. To obtain a coal sorbent, coke fines with a size of ≤10 mm were crushed and sieved to obtain a fraction of 2–5 mm. The resulting fraction was activated in a specially designed reactor at 850 °C with steam treatment. Activation was carried out at different durations of the process: 60, 90, and 120 min. It was found that the sample obtained with a process duration of 120 min has the best indicator for the ability to remove phenol from aqueous solutions (74.94 mg/g) and methylene blue (145 mg/g). When cleaning tap water with the resulting carbon sorbent, there is a decrease in the content of calcium, sulfates, and bicarbonate and a decrease in total mineralization. Obtained activated carbon was studied by scanning electron microscopy, low-temperature nitrogen adsorption (BET), and FTIR spectroscopy. It was found that the resulting activated carbon has a porous structure consisting of meso- and macropores, and the specific surface value was ~301 m2/g. The presence of high-intensity absorption bands corresponding to acid functional groups has also been established.
Mass Spectra Fitting as Diagnostic Tool for Magnetron Plasmas Generated in Ar and Ar/H2 Gases with Tungsten Targets
Authors: Craciun Cristina , Stoica Silviu Daniel , Mitu Bogdana Maria , Acsente Tomy , Dinescu Gheorghe
Published: July 2023

In this work, we describe an ion mass spectra processing method from plasmas generated in Ar and Ar/H2 gases in contact with tungsten surfaces. For this purpose, advanced model functions, i.e., those suitable for fitting the experimental mass peak profiles, are used. In addition, the peak positions, peak shapes, abundances, and ion ratios are the parameters considered for building these functions. In the case of a multielement magnetron target, the calibration of the mass spectra with respect to the peak shape and position on the m/z scale is helpful in reducing the number of free variables during fitting. The mass spectra fitting procedure is validated by the obtained isotopic abundances of W ions in W/Ar magnetron plasmas, which, in turn, are comparable with their natural abundance. Moreover, its usefulness is exemplified by calculating the ratio of WH+/W+ ions in W/Ar/H2 plasma. This work paves the way for obtaining relevant results regarding ion species in plasma even in the case of using general-purpose mass spectrometers with limited resolution and accuracy. Although this method is illustrated for the W/Ar/H2 plasma system, it can be easily extendable to any plasma type.
Quality Control and Authentication of Black Betel Leaf Extract (Piper acre Blume) from East Kalimantan as an Antimicrobial Agent Using a Combination of High-Performance Liquid Chromatography and Chemometric Fourier Transform Infrared
Authors: Maulidya Vina , Hasanah Aliya Nur , Rijai Laode , Muchtaridi Muchtaridi
Published: July 2023

Black betel leaf from East Kalimantan contains various secondary metabolites such as alkaloid saponins, flavonoids, and tannins. A compound, piperenamide A, which has antimicrobial activity, is also found in black betel leaf. This study aims to identify and authenticate the compound piperenamide A found in black betel leaf extract in other types of betel plant using HPLC and FTIR-chemometrics. The extraction method used was maceration with 70% ethanol solvent. Determination of piperenamide A content in black betel leaf extract was via HPLC column C18, with a maximum wavelength of 259 nm and a mobile phase of water:acetonitrile at a flow rate of 1 mL/minute. From the results, piperenamide A was only found in black betel (Piper acre) and not in Piper betel and Piper crocatum. Piperenamide A levels obtained were 4.03, 6.84, 5.35, 13.85, and 2.15%, respectively, in the samples studied. The combination of FTIR spectra with chemometric methods such as PCA and PLS-DA was used to distinguish the three types of betel. Discriminant analysis can classify black betel (Piper acre), Piper betel, and Piper crocatum according to its type. These methods can be used for identification and authentication of black betel.
Selective Noble Gas Inclusion in Pentagon-Dodecahedral X20-Cages
Authors: Weinert Christopher , Ćoćić Dušan , Puchta Ralph , van Eldik Rudi
Published: July 2023

Using DFT-based computational chemistry calculations (ωB97XD/def2-tzvp//ωB97XD/def2-svp/svpfit + ZPE(ωB97XD/def2-svp/svpfit)), binding energies of noble gases encapsulated in a series of dodecahedrane molecules (general formula: X20H20 where X = C, Si, Ge, Sn and Pb, and X20 where X = N, P, As, Sb and Bi) were calculated to learn about the noble gas selectivity. Based on calculated binding energies, the Sn20H20 cage can best accommodate noble gases with a medium size radius (Ar and Kr), while the Pb20H20 dodecahedrane cage is best suited for noble gases with the larger radii (Xe and Rn). On the other hand, from the elements of the V main group of the periodic table, the Bi20 cage has shown the best results to selectively encapsulate Ar and Kr, with the amounts of energy being released being −5.24 kcal/mol and −6.13 kcal/mol, respectively. By monitoring the geometric changes of all here-reported host cages upon encapsulating the noble gas guest, the host has shown minor to no flexibility, testifying to the high rigidity of the dodecahedrane structure which was further reflected in very high encapsulating energies.
Electric Field-Induced Nano-Assembly Formation: First Evidence of Silicon Superclusters with a Giant Permanent Dipole Moment
Authors: Jardali Fatme , Tran Jacqueline , Liège Frédéric , Florea Ileana , Leulmi Mohamed E. , Vach Holger
Published: July 2023

The outstanding properties of silicon nanoparticles have been extensively investigated during the last few decades. Experimental evidence and applications of their theoretically predicted permanent electric dipole moment, however, have only been reported for silicon nanoclusters (SiNCs) for a size of about one to two nanometers. Here, we have explored the question of whether suitable plasma conditions could lead to much larger silicon clusters with significantly stronger permanent electric dipole moments. A pulsed plasma approach was used for SiNC production and surface deposition. The absorption spectra of the deposited SiNCs were recorded using enhanced darkfield hyperspectral microscopy and compared to time-dependent DFT calculations. Atomic force microscopy and transmission electron microscopy observations completed our study, showing that one-to-two-nanometer SiNCs can, indeed, be used to assemble much larger ”superclusters” with a size of tens of nanometers. These superclusters possess extremely high permanent electric dipole moments that can be exploited to orient and guide these clusters with external electric fields, opening the path to the controlled architecture of silicon nanostructures.
A Breakthrough in Photocatalytic Wastewater Treatment: The Incredible Potential of g-C3N4/Titanate Perovskite-Based Nanocomposites
Authors: Patra Rashmiranjan , Dash Pranjyan , Panda Pradeep Kumar , Yang Po-Chih
Published: July 2023

Water pollution has emerged as a major global environmental crisis due to the massive contamination of water resources by the textile dyeing industry, organic waste, and agricultural residue. Since water is fundamental to life, this grave disregard puts lives at risk, making the protection of water resources a serious issue today. Recent research has shown great interest in improving the photocatalytic performance of graphitic carbon nitride (g-C3N4) for wastewater treatment. However, the photocatalytic removal activity of pure g-C3N4 is poor, owing to its minimal surface area, fast recombination of photo-generated electron–hole pairs, and poor light absorption. Recently, titanate perovskites (TNPs) have attracted significant attention in both environmental remediation and energy conversion due to their exceptional structural, optical, physiochemical, electrical, and thermal properties. Accordingly, TNPs can initiate a variety of surface catalytic reactions and are regarded as an emerging category of photocatalysts for sustainability and energy-related industries when exposed to illumination. Therefore, in this review article, we critically discuss the recent developments of extensively developed g-C3N4/TNPs that demonstrate photocatalytic applications for wastewater treatment. The different synthetic approaches and the chemical composition of g-C3N4/TNP composites are presented. Additionally, this review highlights the global research trends related to these materials. Furthermore, this review provides insight into the various photocatalytic mechanisms, including their potential impact and significance. Also, the challenges faced by such materials and their future scope are discussed.
Progress in Carbon Nanostructures: From Synthesis to Applications
Authors: Kharlamova Marianna V. , Kramberger Christian , Chernov Alexander I.
Published: July 2023

Significant progress in carbon nanostructures has been achieved in the past 20 years; however, there is plenty of room for further study [...]
Recent Developments on the Catalytic and Biosensing Applications of Porous Nanomaterials
Authors: Pal Nabanita , Chakraborty Debabrata , Cho Eun-Bum , Seo Jeong Gil
Published: July 2023

Nanoscopic materials have demonstrated a versatile role in almost every emerging field of research. Nanomaterials have come to be one of the most important fields of advanced research today due to its controllable particle size in the nanoscale range, capacity to adopt diverse forms and morphologies, high surface area, and involvement of transition and non-transition metals. With the introduction of porosity, nanomaterials have become a more promising candidate than their bulk counterparts in catalysis, biomedicine, drug delivery, and other areas. This review intends to compile a self-contained set of papers related to new synthesis methods and versatile applications of porous nanomaterials that can give a realistic picture of current state-of-the-art research, especially for catalysis and sensor area. Especially, we cover various surface functionalization strategies by improving accessibility and mass transfer limitation of catalytic applications for wide variety of materials, including organic and inorganic materials (metals/metal oxides) with covalent porous organic (COFs) and inorganic (silica/carbon) frameworks, constituting solid backgrounds on porous materials.
Effects of Unripe Black Raspberry Extract Supplementation on Male Climacteric Syndrome and Voiding Dysfunction: A Pilot, Randomized, Double-Blind, Placebo-Controlled Trial
Authors: Jung Su-Jin , Park Eun-Ock , Chae Soo-Wan , Lee Seung-Ok , Kwon Ji-Wung , You Jae-Hyung , Kim Young-Gon
Published: July 2023

Male climacteric syndrome (MCS) is a medical condition that can affect middle-aged men whose testosterone levels begin to decline considerably. These symptoms may include fatigue, decreased libido, mood swings, and disturbed sleep. MCS can be managed with lifestyle modifications and testosterone replacement. However, testosterone therapy may cause number of side effects, including an increased risk of cardiovascular issues. This study aims to evaluate the efficacy and safety of unripe black raspberry extract (BRE) against MCS and voiding dysfunction in men with andropause symptoms. A total of 30 subjects were enrolled and randomly assigned to the BRE group (n = 15) or the placebo group (n = 15). Participants were supplemented with 4800 mg BRE or placebo twice daily for 12 weeks. The impact of BRE was assessed using the Aging Male’s Symptoms (AMS scale), International Prostate Symptom Score (IPSS) and the IPSS quality of life index (IPSS-QoL). Additionally, male sex hormones, lipid profiles, and anthropometric indices were assessed 6 and 12 weeks after treatment. The AMS scores did not differ significantly between the two groups. In the BRE group, the total IPSS and IPSS-QoL scores decreased significantly after 12 weeks compared to baseline (p < 0.05), but there was no significant difference compared to the placebo group. However, a significant difference was observed in the IPSS voiding symptoms sub-score compared to the placebo group. Furthermore, LDL-C and TC levels were also significantly lower in the BRE group than in the placebo group (p < 0.05). Collectively, the study provides strong evidence supporting the safety of BRE as a functional food and its supplementation potentially enhances lipid metabolism and alleviates MCS and dysuria symptoms, limiting the development of BPH.
Polymeric-Micelle-Based Delivery Systems for Nucleic Acids
Authors: Sinani Genada , Durgun Meltem Ezgi , Cevher Erdal , Özsoy Yıldız
Published: July 2023

Nucleic acids can modulate gene expression specifically. They are increasingly being utilized and show huge potential for the prevention or treatment of various diseases. However, the clinical translation of nucleic acids faces many challenges due to their rapid clearance after administration, low stability in physiological fluids and limited cellular uptake, which is associated with an inability to reach the intracellular target site and poor efficacy. For many years, tremendous efforts have been made to design appropriate delivery systems that enable the safe and effective delivery of nucleic acids at the target site to achieve high therapeutic outcomes. Among the different delivery platforms investigated, polymeric micelles have emerged as suitable delivery vehicles due to the versatility of their structures and the possibility to tailor their composition for overcoming extracellular and intracellular barriers, thus enhancing therapeutic efficacy. Many strategies, such as the addition of stimuli-sensitive groups or specific ligands, can be used to facilitate the delivery of various nucleic acids and improve targeting and accumulation at the site of action while protecting nucleic acids from degradation and promoting their cellular uptake. Furthermore, polymeric micelles can be used to deliver both chemotherapeutic drugs and nucleic acid therapeutics simultaneously to achieve synergistic combination treatment. This review focuses on the design approaches and current developments in polymeric micelles for the delivery of nucleic acids. The different preparation methods and characteristic features of polymeric micelles are covered. The current state of the art of polymeric micelles as carriers for nucleic acids is discussed while highlighting the delivery challenges of nucleic acids and how to overcome them and how to improve the safety and efficacy of nucleic acids after local or systemic administration.
Microwave Frequency Dissemination over a 250 km Fiber Link with Stability at the 10−18 Level
Authors: Yu Shaoshao , Zhao Wenyu , Xue Wenxiang , Zhang Shougang
Published: July 2023

In this paper, a microwave phase compensation scheme is adopted. It utilizes microwave signals of different frequencies for round-trip signal transmission over a 250 km fiber optic link to mitigate the impact of parasitic reflections. Additionally, dispersion compensation fibers are employed to compensate for the dispersion in the fiber optic link. Bidirectional optical amplifiers are utilized to compensate for the losses in long-distance fiber optic links and reduce optical path asymmetry. By implementing these methods, the transmission stability of the fiber optic microwave frequency transmission system achieves 5.6 × 10−15 at 1 s and 2.8 × 10−18 at 100,000 s.
Effect of Polyethylene Glycol Methyl Ether Methacrylate on the Biodegradability of Polyvinyl Alcohol/Starch Blend Films
Authors: Iskalieva Asylzat , Yesmurat Mateyev , Al Azzam Khaldun M. , Ainakulova Dana , Yerbolat Yerzhanov , Negim El-Sayed , Ibrahim Mohamad Nasir Mohamad , Gulzhakhan Yeligbayeva
Published: July 2023

Blend copolymers (PVA/S) were grafted with polyethylene glycol methyl methacrylate (PEGMA) with different ratios. Potassium persulfate was used as an initiator. The blend copolymer (PVA/S) was created by combining poly(vinyl alcohol) (PVA) with starch (S) in various ratios. The main idea was to study the effect of different ratios of the used raw materials on the biodegradability of plastic films. The resulting polymers (PVA/S/PEGMA) were analyzed using FTIR spectroscopy to investigate the hydrogen bond interaction between PVA, S, and PEGMA in the mixtures. TGA and SEM analyses were used to characterize the polymers (PVA/S/AA). The biodegradability and mechanical properties of the PVA/S/PEGMA blend films were evaluated. The findings revealed that the mechanical properties of the blend films are highly influenced by PEGMA. The time of degradation of the films immersed in soil and Coca-Cola increases as the contents of PVA and S and the molecular weight (MW) of PEGMA increase in the terpolymer. The M8 sample (PVA/S/PEGMA in the ratio of 3:1:2, respectively) with a MW of 950 g/mol produced the lowest elongation at break (67.5%), whereas M1 (PVA/S/PEGMA in the ratio of 1:1:1, respectively) with a MW of 300 g/mol produced the most (150%). The film’s tensile strength and elongation at break were improved by grafting PEGMA onto the blending polymer (PAV-b-S). Tg and Tm increased when the PEGMA MW increased from 300 to 950. Tg (48.4 °C) and Tm (190.9 °C) were the lowest in M1 (300), while Tg (84.8 °C) and Tm (190.9 °C) were greatest in M1 (950) at 209.3 °C. The increased chain and molecular weight of PEGMA account for the increase in Tg and Tm of the copolymers.
Configuration of a Simple Method for Different Polyamides 6.9 Recognition by ATR-FTIR Analysis Coupled with Chemometrics
Authors: Tummino Maria Laura , Chrimatopoulos Christoforos , Bertolla Maddalena , Tonetti Cinzia , Sakkas Vasilios
Published: July 2023

This study proposes a simple approach for the recognition of polyamide 6.9 samples differing in impurity amounts and viscosities (modulated during the synthesis), which are parameters plausibly variable in polymers’ manufacturing processes. Infrared spectroscopy (ATR-FTIR) was combined with chemometrics, applying statistical methods to experimental data. Both non-supervised and supervised methods have been used (PCA and PLS-DA), and a predictive model that could assess the polyamide type of unknown samples was created. Chemometric tools led to a satisfying degree of discrimination among samples, and the predictive model resulted in a great classification of unknown samples with an accuracy of 88.89%. Traditional physical-chemical characterizations (such as thermal and mechanical tests) showed their limits in the univocal identification of sample types, and additionally, they resulted in time-consuming procedures and specimen destruction. The spectral modifications have been investigated to understand the main signals that are more likely to affect the discrimination process. The proposed hybrid methodology represents a potential support for quality control activities within the production sector, especially when the spectra of compounds with the same nominal composition show almost identical signals.
Ultrastructural Evidence of Synapse Preservation and Axonal Regeneration Following Spinal Root Repair with Fibrin Biopolymer and Therapy with Dimethyl Fumarate
Authors: Kempe Paula Regina Gelinski , de Castro Mateus Vidigal , Khuriyeh Victor Campos , Barraviera Benedito , Ferreira Rui Seabra , de Oliveira Alexandre Leite Rodrigues
Published: July 2023

Spinal cord injury causes critical loss in motor and sensory function. Ventral root avulsion is an experimental model in which there is the tearing of the ventral (motor) roots from the surface of the spinal cord, resulting in several morphological changes, including motoneuron degeneration and local spinal cord circuitry rearrangements. Therefore, our goal was to test the combination of surgical repair of lesioned roots with a fibrin biopolymer and the pharmacological treatment with dimethyl fumarate, an immunomodulatory drug. Thus, adult female Lewis rats were subjected to unilateral ventral root avulsion of L4–L6 roots followed by repair with fibrin biopolymer and daily treatment with dimethyl fumarate (15 mg/Kg; gavage) for 4 weeks, the survival time post-surgery being 12 weeks; n = 5/group/technique. Treatments were evaluated by immunofluorescence and transmission electron microscopy, morphometry of the sciatic nerve, and motor function recovery. Our results indicate that the combination between fibrin biopolymer and dimethyl fumarate is neuroprotective since most of the synapses apposed to alfa motoneurons were preserved in clusters. Also, nerve sprouting occurred, and the restoration of the ‘g’ ratio and large axon diameter was achieved with the combined treatment. Such parameters were combined with up to 50% of gait recovery, observed by the walking track test. Altogether, our results indicate that combining root restoration with fibrin biopolymer and dimethyl fumarate administration can enhance motoneuron survival and regeneration after proximal lesions.
Effect of Cooling Temperature on Crystalline Behavior of Polyphenylene Sulfide/Glass Fiber Composites
Authors: Hong Seo-Hwa , Cho Beom-Gon
Published: July 2023

Poly (phenylene sulfide) (PPS) is a super engineering plastic that has not only excellent rigidity and high chemical resistance but also excellent electrical insulation properties; therefore, it can be applied as an electronic cover or an overheating prevention component. This plastic has been extensively applied in the manufacture of capacitor housing as, in addition to being a functional and lightweight material, it has a safety feature that can block the electrical connection between the electrolyte inside and outside the capacitor. Moreover, the fabrication of PPS composites with high glass fiber (GF) content facilitates the development of lightweight and excellent future materials, which widens the scope of the application of this polymer. However, the crystallinity and mechanical properties of PPS/GF composites have been found to vary depending on the cooling temperature. Although extensive studies have been conducted on the influence of cooling temperature on the crystalline behavior of PPS-based composites, there has been limited research focused particularly on PPS/GF composites for capacitor housing applications. In this study, to apply PPS/GF composites as film capacitor housings, specimens were prepared via injection molding at different cooling temperatures to investigate the composites’ tensile, flexural, and impact energy absorption properties resulting in increases in mechanical properties at high cooling mold temperature. Fracture surface analysis was also performed on the fractured specimens after the impact test to confirm the orientation of the GF and the shape of the micropores. Finally, the crystallinity of the composites increased with higher cooling temperatures due to the extended crystallization time.
Walking in the City: Christian Spirituality in Amsterdam through the Eyes of Michel de Certeau
Authors: Meijers Erica
Published: July 2023

This contribution investigates the spiritual position of a Christian congregation in urban contexts of gentrification and de-churching. A project in Amsterdam will serve as a case to explore crucial issues for shrinking congregations in ‘up-and-coming’ neighbourhoods, who aim to transcend the insider/outsider dichotomy between the congregation and its (urban) context. The project at hand shows a shift from exclusively Christian congregations to communities of people with various outlooks of life and from professional structures to cooperation between professionals and volunteers. Using the work of the French theologian Michel de Certeau as a city guide, and his understanding of the empty tomb as a key theological concept, the paper reflects on epistemological and methodological questions brought about by these shifts. After that, issues closely connected to the observed shifts are discussed: the questions of language (how to deal with different ways to express and interpret experiences) and ownership (who is in control in situations of plurality). The article argues for an urban Christian spirituality based on an epistemology of not-knowing and otherness, informed by methodologies of receptivity and desire, leading to practices of multilingualism and open ownership-structures.
Commercial Anion Exchange Membranes (AEMs) for Fuel Cell and Water Electrolyzer Applications: Performance, Durability, and Materials Advancement
Authors: Ng Wei , Wong Wai , Rosli Nur , Loh Kee
Published: July 2023

The utilization of anion exchange membranes (AEMs) has revolutionized the field of electrochemical applications, particularly in water electrolysis and fuel cells. This review paper provides a comprehensive analysis of recent studies conducted on various commercial AEMs, including FAA3-50, Sustainion, Aemion™, XION Composite, and PiperION™ membranes, with a focus on their performance and durability in AEM water electrolysis (AEMWE) and AEM fuel cells (AEMFCs). The discussed studies highlight the exceptional potential of these membranes in achieving high current densities, stable operation, and extended durability. Furthermore, the integration of innovative catalysts, such as nitrogen-doped graphene and Raney nickel, has demonstrated significant improvements in performance. Additionally, the exploration of PGM-free catalysts, such as Ag/C, for AEMFC cathodes has unveiled promising prospects for cost-effective and sustainable fuel cell systems. Future research directions are identified, encompassing the optimization of membrane properties, investigation of alternative catalyst materials, and assessment of performance under diverse operating conditions. The findings underscore the versatility and suitability of these commercial AEMs in water electrolysis and fuel cell applications, paving the way for the advancement of efficient and environmentally benign energy technologies. This review paper serves as a valuable resource for researchers, engineers, and industry professionals seeking to enhance the performance and durability of AEMs in various electrochemical applications.
RETRACTED: Kumpikaitė, E.; Milašius, R. Lithuanian National Costume in the 19th Century and in the 2nd Half of the 20th Century: Cultural Pollution and Remains of Authenticity. Societies 2021, 11, 17
Authors: Kumpikaitė Eglė , Milašius Rimvydas
Published: July 2023

The journal retracts the article “Lithuanian National Costume in the 19th Century and in the 2nd Half of the 20th Century: Cultural Pollution and Remains of Authenticity” [...]
Simulation and Optimization Study on the Performance of Fin-and-Tube Heat Exchanger
Authors: Jing Nijie , Xia Yudong , Ding Qiang , Chen Yuezeng , Wang Zhiqiang , Zhang Xuejun
Published: July 2023

Heat exchangers (HX) are often utilized in industry, and the optimization of the performance of HX is a key area of research. In this study, EVAP-COND software 4.0 and genetic algorithm (GA) based optimization methods were proposed to optimize the circuitry and fin pitch of a finned tube heat exchanger for an air conditioner. A simulation model for a multi-circuit finned-tube evaporator used in an air conditioning unit was developed using the EVAP-COND software, and further validated based on the experimental data. Considering the refrigerant flow maldistribution of the original HX, four different circuit arrangements, i.e., types A, B, C, and D, were designed and optimized circuitry obtained. Based on both simulation and experimental results, D-type HX with 1.8 mm fin pitch was selected as 10% tubes could be saved with no significant loss of heat transfer capacity. Then the fin pitch was further optimized using the multi-objective GA method, with both Colburn factor j and friction factor f being considered. Optimization results showed that, in Pareto front, points 1 to 4 showed the increase in the Colburn factor j was negative, while the decrease in the friction factor f was positive. The friction factor decreased by 3.5% as one moved from Point 1 to Point 4, but the Colburn factor rose by 1.02%. Points 5 to 10 demonstrated that, while the decrease in the friction factor was negative, the increase in the Colburn factor was positive. The friction factor decreased by 5.31%, but the Colburn factor increased by 1.51% when going from Point 5 to Point 10. The results of optimization demonstrated that the objective function performed at its optimum when the fin pitch was around 1.77 mm.
A Supplement with Bromelain, Lentinula edodes, and Quercetin: Antioxidant Capacity and Effects on Morphofunctional and Fecal Parameters (Calprotectin, Cortisol, and Intestinal Fermentation Products) in Kennel Dogs
Authors: Atuahene David , Costale Annalisa , Martello Elisa , Mannelli Alessandro , Radice Elisabetta , Ribaldone Davide Giuseppe , Chiofalo Biagina , Stefanon Bruno , Meineri Giorgia
Published: July 2023

Oxidative stress causes several pathological conditions in humans and animals, including gastrointestinal disorders. The aim of this study was to analyze the antioxidant capacity of three natural powdered raw materials containing quercetin, bromelain, and Lentinula edodes and develop a new feed supplement for dogs using a combination of them. The total phenolic content (TPC), antioxidant activity, DPPH (2,2-diphenyl-1-picrylhydrazyl), and ABTS (2,2′-Azino-bis (3-ethylbenzothiazoline-6-sulfonic acid) diammonium salt) of the extracts, either individually or in combination, were evaluated colorimetrically. The effects of this supplement on healthy adult dogs’ nutritional, inflammatory, and stress status were evaluated. American Staffordshire Terrier adult female dogs (n = 30) were randomly assigned to a control (n = 15) or a treated (n = 15) group. The supplement was added as powder to the food of the treated dogs once daily for 28 days. There was no significant difference in the body weight and body condition scores between the initial and final phases of the experiment. At the end of our study, a significant decrease in fecal calprotectin, cortisol, indole/skatole, and N-methylhistamine and a significant increase in short-chain fatty acids were observed as compared to the control group. In conclusion, this natural feed supplement can be used to improve gastrointestinal health and psycho-physical conditions in dogs.
Influence of the Chinese Zen Way of Life at Wu Wei Buddhist Temple on the Psychological Well-Being of Ethnocultural Travelers
Authors:   Moscow University for the Humanities, direction ", Fetisova Sofia Vital'evna ,   Counseling and Clinical Psychology"
Published: July 2023

The article describes the elements of the way of life of the Chinese Zen Buddhist temple Wu Wei, which is perceived by non-religious travelers who came there from all over the world as a situation of novelty and uncertainty. This situation requires foreigners to activate non-verbal communication, reflection, intuition, attentiveness. The author considers the influence of the ecological, social and cultural environment on the improvement of the psychological well-being of travelers.
Actual issues of operation of CNC machines — preparation of control programs
Authors:   Diana-CNC company, Penza, Emelyanov S. A.
Published: July 2023

The article analyzes various options for the preparation of control programs for CNC machines: the use of computer-aided design systems, the use of integrated CNC editors, the use of universal computing tools (personal computers, laptops, tablets), interactive writing of the program in manual control mode, the use of templates for specific processing methods, the use of converters that convert control programs developed by for other CNC systems, the use of converters from raster or vector files.
Development of the method for calculating and analytical accounting of the production of berry crop products
Authors:   Udmurt State Agrarian University, Izhevsk, Russia, Sviridov D. V.
Published: July 2023

The article deals with the issues of organization and features of the technology for the production of berry crops. The organizational and methodological aspects of calculating the cost of production of berry crops are critically assessed. Recommendations have been developed to improve the calculation of the cost of production of berry crops of various varieties by distributing production costs for high-quality types of berries in proportion to the content of sugar and other quality elements in them. Recommendations are proposed for rationalizing and detailing the analytical accounting of costs for the production of berry crops by using subanalytic accounts (subconto) by type and analytical accounts by berry crop varieties.
Peculiarities of carrying out forensic accounting examinations in crop production and animal husbandry
Authors:   Russian Timiryazev State Agrarian University, Moscow, Russia, Khoruzhy L. I. , Katkov Yu. N. ,   Russian Timiryazev State Agrarian University, Moscow, Russia, Minaeva V. M. ,   Russian Timiryazev State Agrarian University, Moscow, Russia, Tikunova A. S. ,   Russian Timiryazev State Agrarian University, Moscow, Russia
Published: July 2023

Shadow economics are a negative factor that impedes the development of any state, and forensic accounting helps to collect the evidence base, and expert document the facts of criminal encroachments in the economic sphere, during the preliminary investigation and judicial investigation. The article is devoted to the peculiarities of the production of forensic accounting examinations in the agricultural sectors, including the consideration of stages and programs for their implementation, as well as the development of measures to improve them. The author’s methodology for carrying out forensic accounting examinations is presented, taking into account the specific features of the agricultural sector. On the example of specific agricultural organizations, examples of the production of accounting examinations in the fields of crop production and animal husbandry were considered.
ASSOCIATION OF DIGNITY OF LICENSE IN THE CONDITIONS OF INTERNAL CULTURAL AND SOCIO-POLITE SELF-RELEASE OF THE CONNECTOR OF A TWENTY SIDE
Authors: Kostenko M.
Published: July 2023

The article defects priority idiological and centenary positions of the Ukrainian society in the 19th century. The acceptance of consciousness and self-relevant is characterized by a comprehensive analysis. The aim and the tasks: вy working out ethical and philosophical literature, to justify the establishment of dignity of personality in the conditions of domestic cultural and socio-political selfdetermination of the late twentieth century.Research methods are the main methods of research are historical, structuralfunctional, systemic and comparative. To solve specific research tasks also used the principles of systemicity, objectivity, ascension from abstract to concrete, etcEmphades of a new state in ethical and phylosophic keys, analyzes the values of Ukrainians, slogans, native ideas are analyzed. Research results: Scientifically illustrated embodies of the national self-release of the Ukrainian society: Selfrelease of the Naziological State Ukraine: Sovereignty of Ukraine (1985-1991 gg.); Nassional State Formation of Ukraine in the conditions of socio-purity and socioeconomic neoperedelenost (1992-1996 gg.); Creation of oligarchata as a diverse manifestation of a democratic regime in Ukraine (1996-2004 gg.); Polarization of the Farility (2005-2014 gg.); Thick ethape, which is purely formally defined as "post-revolutionary". The author exemplary aspects of the social realities of the reorganization, and the presentation of honor and dignity of the license. Discussion. It is condemned that for the self-release of the national state, the slide of restructuring of steel, the significant income from the public discourse of the topics of repressions, reversed to the families of the species of culture, science, public expressions, popularization of the creativity of the dyspasses and diaspree Figur. Conclusion. In such a way, the protest in the second half of the 1980s is Pastepeno Gladenna, which has received the introduction of privacy in its own participants.Many were re-enriched, rising from the laurel of the prison establishment, the inside of the country, and in the finishing of the bobs for Naziovnoye venereal, the rule of law and market economy. The dignity of a person on the day of restructuring, in the whole, was disturbed from the ancestors of the historical objects of the maintenance of the specialty – Ego Simbiosis with such categories, as freedom, will be, independence.
THE IMAGE OF ANTONIO SALIERI ACCORDING TO THE MEMORIES OF HIS CONTEMPORARY AND EPISTOLARY PUBLICISTIC LITERATURE
Authors: Yaremenko L.
Published: July 2023

The image of Antonio Salieri is recreated based on the memories of his contemporaries and epistolary and journalistic literature. The author, relying on memoir literature, archival documents and journalistic sources, substantiates his own position regarding A. Salieri’s contribution to the world artistic treasury and artistic higher education, the expediency of researching his heritage at the current stage. A wide range of primary sources little-known in scientific circulation are used, which allow us to reveal the image of Antonio Salieri – a musician, composer, teacher, theater director, rector of the central art institution of higher education in Europe in the 19th century – the Vienna Conservatory. The concept of A. Salieri’s involvement in the early death of is refuted Mozart. The aim consists in recreating the image of Antonio Salieri based on the memories of his contemporaries and epistolary and journalistic literature. The tasks of the research are the analy of primary sources on this issue and the identification of modern approaches to Antonio Salieri’s contribution to the world artistic treasury. Research methods. The methodology of the author’s research is based on the content-comparative method, which allows you to determine the reliability of one or another source, the ratio of traditionally established and non-traditional vision of the image of a prominent representative of his era – Antonio Salieri. Reconstruction was also used – to reproduce the events of the era at the turn of the 18 – 19th centuries within the scope of the research. Research results: The development of the pedagogical heritage of A. Salieri in the activities of his students and followers is shown; the creative portrait of Y.N. Hummel, who, thanks to the Maestro, mastered vocal art, Italian musical terminology, music theory and solfeggio, choral singing and conducting, orchestration, pedagogical skills, combined “Salierian” classicism and his own romanticism. The achievements of Fortunata Valzel-Franchetti as a singer, artist and teacher are analyzed, and it is shown how the vocal-pedagogical school of A. Salieri came to Ukraine through her. Conclusion.The analysis of primary sources –correspondence, diaries of Antonio Salieri and his students, made it possible to find out the significance of the Maestro’s creative heritage for subsequent eras, to recreate his image based on the memories of his contemporaries and epistolary and journalistic literature. 27 archival cases were presented for consideration, which gave an opportunity to understand how domestic scientists, artists and publicists treated Antonio Salieri throughout the 20th century, so often they turned to his creative heritage. After careful analysis of these materials, it can be said that their assessment was very high.
HAK ASASI DAN KEWAJIBAN BELA NEGARA DALAM KEBIJAKAN VAKSINASI COVID-19 DI INDONESIA
Authors: Wicaksono Yudi Krisno , Nurjaya I Nyoman , Susilo Edi
Published: July 2023

Kajian penelitian ini bertujuan untuk menelaah kebijakan vaksinasi COVID-19 yang direalisasikan secara nasional dalam perspektif hak dan kewajiban asasi warga negara. Metode penelitian ini memakai pendekatan hukum normatif, yang memadukan pendekatan perundang-undangan (statute approach) dan pendekatan konseptual (conceptual approach). Temuan penelitian menunjukkan bahwa kesehatan termasuk pada bagian HAM adanya jaminan dari konstitusi dan perundang-undangan. Kondisi krisis kesehatan dampak COVID-19 membuat pemenuhan hak asasi warga negara dalam sektor kesehatan menjadi sangat mendesak untuk diimplementasikan. Vaksinasi diupayakan agar memutus penyebaran virus dan kembali memulihkan seluruh aktivitas negara. Realisasi program vaksinasi nasional mencakup pemenuhan terhadap hak dan kewajiban dalam fasilitas kesehatan yang dijamin dalam UU No 6 Tahun 2018 mengenai Kekarantinaan Kesehatan dan UU No. 4 Tahun 1984 mengenai Wabah Penyakit Menular. Hak warga negara atas jaminan kesehatan termaktub dalam pasal 28 dan 34 UUD 1945. Perspektif kewajiban dalam program vaksinasi dapat dilihat dari Pasal 28 J ayat 1 dan juga 2, keikutsertaan warga dalam vaksinasi juga termasuk dalam usaha untuk memberikan pembelaan sesuai yang diatur dalam Pasal 27 UUD 1945. Masyarakat dapat dikenakan sanksi jika secara sengaja maupun tidak sengaja menghalangi upaya mengatasi wabah. Vaksinasi diharapkan dapat meningkatkan imunitas diri sendiri yang mendorong pemulihan kesehatan, perekonomian, dan aktivitas nasional.
KESUKSESAN APLIKASI PELAPORAN KEUANGAN DAN KINERJA ORGANISASI OPD KOTA/KABUPATEN DI PROVINSI RIAU
Authors: Gunasanti Ursula , Fitrios Ruhul , L Al Azhar , Zakya Ismon
Published: July 2023

This study aims to examine the effect of organizational culture and organizational commitment on the success of financial reporting/accounting information systems (AIS) applications and their effect on organizational performance. The population of research is the City/Regency Regional Apparatus Organization (OPD) in the North Coastal Region of Riau Province. The sample selection used proportional stratified random sampling with a total sample of 104 OPD. The data analysis used is Smart PLS. The results show that organizational culture affects AIS applications success and organizational performance, while organizational commitment does not affect AIS applications success and organizational performance, and AIS applications success affects organizational performance. This study indicated the importance of developing a strong organizational culture to increase the success of AIS applications and improve organizational performance. Furthermore, the use of AIS applications can improve organizational performance.