bluuebunny/crossref_metadata_2025 huggingface dataset:
Gypsum on Mars: A Detailed View at Gale Crater
Authors: Vaniman David , Chipera Steve , Rampe Elizabeth , Bristow Thomas , Blake David , Meusburger Johannes , Peretyazhko Tanya , Rapin William , Berger Jeff , Ming Douglas , Craig Patricia , Castle Nicholas , Downs Robert T. , Morrison Shaunna , Hazen Robert , Morris Richard , Pandey Aditi , Treiman Allan H. , Yen Albert , Achilles Cherie , Tutolo Benjamin , Hausrath Elisabeth , Simpson Sarah , Thorpe Michael , Tu Valerie , Des Marais David J. , Grotzinger John , Fraeman Abigail
Published: August 2024

Gypsum is a common mineral at Gale crater on Mars, currently being explored by the Mars Science Laboratory (MSL) rover, Curiosity. In this paper, we summarize the associations of gypsum with other sulfate minerals (bassanite, anhydrite, jarosite, starkeyite, and kieserite) from the lowest levels of the crater’s northern moat zone (Aeolis Palus) up through ~0.8 km of the stratigraphic section in the lower slopes of the sedimentary mound developed around the central peak, Aeolis Mons (informally, Mount Sharp). The analysis is based on results from the CheMin X-ray diffraction instrument on Curiosity, supplemented with information from the rover’s versatile instrument suite. Gypsum does not occur with the same frequency as less hydrous Ca-sulfates, likely, in most cases, because of its dehydration to bassanite and possibly to anhydrite. All three of these Ca-sulfate phases often occur together and, along with other sulfates, in mixed assemblages that are evidence of limited equilibration on a cold, dry planet. In almost all samples, at least one of the Ca-sulfate minerals is present, except for a very limited interval where jarosite is the major sulfate mineral, with the implication of more acidic groundwater at a much later time in Gale crater’s history. Although observations from orbit reveal a sulfate-rich surface, currently active dark basaltic dunes at Gale crater have only small amounts of a single sulfate mineral, anhydrite. Gale crater has provided the most complete mineralogical analysis of a site on Mars so far, but the data in hand show that Gale crater mineralogy is not a blueprint with planet-wide application. The concurrent study of Jezero crater by the Mars 2020 mission and comparisons to what is believed to be the most extensive deposit of gypsum on Mars, in the dune fields at the north polar ice cap, show significant diversity. Unraveling the stories of gypsum and other sulfates on Mars is just beginning.
Thermodynamic and Experimental Substantiation of Comprehensive Processing of Zinc Sulfide Ore and Its Concentration Tailings to Extract Non-Ferrous Metals and Produce a Silicon Ferroalloy
Authors: Shevko Viktor , Makhanbetova Baktygul , Aitkulov Dosmurat , Badikova Alexandra , Amanov Daniel
Published: August 2024

This article presents the results of thermodynamic and experimental studies on the joint processing of a mixture of Shalkiya deposit zinc–lead sulfide ore and its concentration tailings in the presence of coke and magnetite. Using the HSC-6.0 software package, it was established by thermodynamic modeling that the silicon-containing products of the SiO2 reduction in the system under consideration are FeSi, Si, Fe3Si, Fe5Si3, FeSi2, FeSi2.33, and SiOg, which, based on the starting reduction temperature, form an increasing series: Fe3Si (1200 °C); Fe5Si3, Si (1400 °C); and SiOg, FeSi2, FeSi2.33 (1500 °C). The smelting of the zinc–lead sulfide ore and concentration tailings mixture in the case of replacing 55% of the iron contained in the magnetite concentrate with steel shavings iron allowed us to produce FeSi45 ferrosilicon (41.9%–42.1% Si), with the extraction of 85% of the silicon in it, and sublimates containing 26.03% zinc and 13.47% lead, with the extraction of 97% of the zinc and 99% of the lead in them. In comparison with the initial ore-tailings mixture, the resulting sublimates are 11.83 times richer in zinc.
Density Functional Theory Study of the Crystal Structure and Infrared Spectrum of a Synthetized Ettringite Mineral
Authors: Colmenero Francisco , Fernández Ana María , Almendros-Ginestà Oscar , Missana Tiziana
Published: August 2024

One of the most important hydration phases of Portland cement is ettringite, a calcium sulfo-aluminate mineral (Ca6Al2(OH)12(SO4)3·26H2O) showing a great capacity of adsorbing radionuclides and other contaminant cationic and anionic species, or incorporating them into its crystal structure. In this work, the X-ray diffraction pattern and infrared spectra of a synthetized ettringite sample are recorded and simulated, employing theoretical methods based on Density Functional Theory. Despite the complexity of this phase, the calculated structure, X-ray diffraction pattern and infrared spectrum are in excellent agreement with their experimental counterparts. Since the calculated and experimental spectra are consistent, the main infrared bands are assigned using a normal coordinate analysis, some of them being completely reassigned with respect to other experimental works. The good agreement found provides strong support for the computational methods employed towards their use for studying the surface adsorption properties and the incorporation of contaminations in its structure. The density of reactive groups at the surfaces of ettringite is reported, and the surface adsorption of water molecules is studied. These surfaces appear to be highly hydrophilic, in agreement with the experimental finding that the ettringite structure may include more water molecules, at least up to 27, one more than in its standard formula.
Karwowskiite, Ca9(Fe2+0.5□0.5)Mg(PO4)7—A New Merrillite Group Mineral from Paralava of the Hatrurim Complex, Daba-Siwaqa, Jordan
Authors: Galuskin Evgeny V. , Galuskina Irina O. , Kusz Joachim , Książek Maria , Vapnik Yevgeny , Zieliński Grzegorz
Published: August 2024

Crystals of karwowskiite, Ca9Mg(Fe2+0.5□0.5)(PO4)7, a new mineral of the merrillite group, were found on an amygdule wall in the central part of an anorthite–tridymite–diopside paralava of the Hatrurim Complex, Daba-Siwaqa, Jordan. The amygdule was filled with a sulfide melt, which after crystallization gave a differentiated nodule, consisting of troilite and pentlandite parts and containing tetrataenite and nickelphosphide inclusions. Karwowskiite crystals are colorless, although sometimes a greenish tint is observed. The mineral has a vitreous luster. The microhardness VHN25 is 365 (12), corresponding to 4 on the Mohs hardness scale. Cleavage is not observed, and fracture is conchoidal. The calculated density is 3.085 g/cm3. Karwowskiite is uniaxial (−): ω = 1.638 (3), ε = 1.622 (3) (λ = 589 nm), and pleochroism is not observed. The composition of karwowskiite is described by the empirical formula: Ca9.00(□0.54Fe2+0.23Mg0.12Na0.04 Sr0.03 Ni0.03K0.01) Σ1.00Mg1.00(PO4)7.02. Karwowskiite is distinct from the known minerals of the merrillite subgroup with the general formula A9XM[TO3(Ø)]7, where A = Ca, Na, Sr, and Y; X = Na, Ca, and □; M = Mg, Fe2+, Fe3+, and Mn; T = P; and Ø = O, in that the X site in it is occupied by Fe2+0.5□0.5. Karwowskiite is trigonal, space group R-3c with a = 10.3375 (2) Å, c = 37.1443 (9) Å, and V = 3437.60 (17) Å3. Karwowskiite crystallizes at temperatures lower than 1100 °C in a thin layer of secondary melt forming on the walls of amygdules and gaseous channels in paralava as a result of contact with heated gases which are by-products of the combustion process.
Adsorption of Polycyclic Aromatic Hydrocarbons from Wastewater Using Iron Oxide Nanomaterials Recovered from Acid Mine Water: A Review
Authors: Mogashane Tumelo M. , Maree Johannes P. , Mokoena Lebohang
Published: August 2024

Polycyclic aromatic hydrocarbons (PAHs) are a group of organic pollutants known for their persistence and potential carcinogenicity. Effective removal techniques are required since their presence in wastewater poses serious threats to human health and the environment. In this review study, iron oxide nanomaterials (IONs), a by-product of mining operations, recovered from acid mine water are used to investigate the adsorption of PAHs from wastewater. The mechanisms of PAH adsorption onto IONs are investigated, with a focus on the effects of concentration, temperature, and pH on adsorption efficiency. The better performance, affordability, and reusable nature of IONs are demonstrated by comparative studies with alternative adsorbents such as activated carbon. Economic and environmental ramifications highlight the benefits of employing recovered materials, while case studies and real-world applications show how effective IONs are in removing PAHs in the real world. This review concludes by discussing potential future developments in synthesis processes, areas for more research, and emerging trends in nanomaterial-based adsorption. This research intends to contribute to the development of more effective and sustainable wastewater treatment technologies by offering a thorough assessment of the present and future potential of employing IONs for PAH removal from wastewater.
Progress on the Anti-Inflammatory Activity and Structure–Efficacy Relationship of Polysaccharides from Medical and Edible Homologous Traditional Chinese Medicines
Authors: Zhang Yuanyuan , Lin Xiulian , Xia Li , Xiong Suhui , Xia Bohou , Xie Jingchen , Lin Yan , Lin Limei , Wu Ping
Published: August 2024

Medicinal food varieties developed according to the theory of medical and edible homologues are effective at preventing and treating chronic diseases and in health care. As of 2022, 110 types of traditional Chinese medicines from the same source of medicine and food have been published by the National Health Commission. Inflammation is the immune system’s first response to injury, infection, and stress. Chronic inflammation is closely related to many diseases such as atherosclerosis and cancer. Therefore, timely intervention for inflammation is the mainstay treatment for other complex diseases. However, some traditional anti-inflammatory drugs on the market are commonly associated with a number of adverse effects, which seriously affect the health and safety of patients. Therefore, the in-depth development of new safe, harmless, and effective anti-inflammatory drugs has become a hot topic of research and an urgent clinical need. Polysaccharides, one of the main active ingredients of medical and edible homologous traditional Chinese medicines (MEHTCMs), have been confirmed by a large number of studies to exert anti-inflammatory effects through multiple targets and are considered potential natural anti-inflammatory drugs. In addition, the structure of medical and edible homologous traditional Chinese medicines’ polysaccharides (MEHTCMPs) may be the key factor determining their anti-inflammatory activity, which makes the underlying the anti-inflammatory effects of polysaccharides and their structure–efficacy relationship hot topics of domestic and international research. However, due to the limitations of the current analytical techniques and tools, the structures have not been fully elucidated and the structure–efficacy relationship is relatively ambiguous, which are some of the difficulties in the process of developing and utilizing MEHTCMPs as novel anti-inflammatory drugs in the future. For this reason, this paper summarizes the potential anti-inflammatory mechanisms of MEHTCMPs, such as the regulation of the Toll-like receptor-related signaling pathway, MAPK signaling pathway, JAK-STAT signaling pathway, NLRP3 signaling pathway, PI3K-AKT signaling pathway, PPAR-γ signaling pathway, Nrf2-HO-1 signaling pathway, and the regulation of intestinal flora, and it systematically analyzes and evaluates the relationships between the anti-inflammatory activity of MEHTCMPs and their structures.
Exertional Rhabdomyolysis and Ultra-Trail Races: A Systematic Review Highlighting the Significant Impact of Eccentric Load
Authors: Lecina Miguel , Castellar-Otín Carlos , García-Giménez Alejandro , Pradas Francisco
Published: August 2024

Exertional rhabdomyolysis (ER) is a condition where muscle breakdown occurs after intense and unaccustomed exercise in healthy individuals. It is characterized by muscle pain, weakness, and myoglobinuria, potentially leading to acute kidney injury and worsening the patients’ prognosis. Ultra-trail races (UT) necessitate high energy and extreme muscular exertion, which can result in significant muscle breakdown, leading to ER and elevated biomarkers such as creatine kinase (CK) and lactate dehydrogenase (LDH). These races involve longer durations and both uphill and downhill elevations, with the latter causing more muscle damage. This systematic review aims to analyse the effect of downhill elevation (at least 1000 m) in UT on muscle and liver damage biomarkers. We conducted a systematic review of four electronic databases (Pubmed, Web of Science, Scopus, and Sportdiscus) based on PRISMA guidelines for systematic reviews. We included a total of 15 articles out of 6670 published between January 2005 and March 2024. The total population sample included 348 subjects, comprising 294 men (84.48%) and 54 women (15.52%) with a mean age of 39.82 ± 6.89 years. Only one subject (0.28%) was diagnosed with ER. The median increase in CK post vs. pre was 5370.63 ± 7289.71%, LDH post vs. pre was 311.20 ± 164.4%, and liver damage biomarkers aspartate transaminase (AST) and alanine aminotransferase (ALT) obtained mean increases of 1009.94 ± 743.97% and 207.02 ± 92.84%, respectively. No liver injury cases were reported. These findings suggest that ER is often misdiagnosed in UT and may result in acute kidney injury under certain circumstances. Therefore, it is crucial to define and prepare the characteristics required for ultra runners to safely participate in these extreme races.
Efficacy and Safety of Orally Administered East Asian Herbal Medicine Combined with Narrowband Ultraviolet B against Psoriasis: A Bayesian Network Meta-Analysis and Network Analysis
Authors: Jo Hee-Geun , Kim Hyehwa , Baek Eunhye , Seo Jihye , Lee Donghun
Published: August 2024

Psoriasis is a chronic, immune-mediated inflammatory skin disease with many complications and a poor prognosis that imposes a significant burden on individuals and society. Narrowband ultraviolet B (NB-UVB) represents a cost-effective non-drug therapeutic intervention for psoriasis. East Asian herbal medicine (EAHM) is currently being investigated for its potential as a safe and effective psoriasis treatment. Consequently, it has the potential to be employed as a combination therapy with NB-UVB. The objective was to ascertain the efficacy and safety of the EAHM with NB-UVB combination therapy and to identify important drugs for further research. In this study, randomized controlled trials (RCTs) were retrieved from ten databases in Korea, China, and Japan. All statistical analyses were conducted using R software version 4.3.0. The primary outcomes were the Psoriasis Area and Severity Index (PASI) and the incidence rate of adverse events (AEs), while the secondary outcomes were hematologic markers and the Dermatology Life Quality Index (DLQI), which reflect the immune-mediated inflammatory pathology of psoriasis. The analysis of 40 RCTs, including 3521 participants, demonstrated that EAHM with NB-UVB combination therapy exhibited a statistically significant superiority over NB-UVB monotherapy with respect to primary and secondary outcomes. The Bayesian network meta-analysis revealed that Investigator Presciption 3 and Ziyin Liangxue Decoction exhibited a consistent relative advantage with respect to each PASI-based efficacy metric. The network analysis estimated the potential influence ranking for all individual herbs according to PageRank centrality. The findings of this study suggest that EAHMs co-administered with NB-UVB may provide additional efficacy and safety-related benefits for patients with psoriasis. However, the quality of evidence is still low, and further high-quality trials are needed to reach more definitive conclusions.
Efficacy of the Mediterranean Diet Containing Different Macronutrients on Non-Alcoholic Fatty Liver Disease
Authors: Uluçay Kestane Vahibe , Baş Murat
Published: August 2024

This study aimed to investigate the effects of the typical Mediterranean diet (TMD), low-carbohydrate Mediterranean diet (LCMD), and low-fat Mediterranean diet (LFMD) on biochemical findings, fatty liver index (FLI), anthropometric measurements, and body composition in individuals with obesity with non-alcoholic fatty liver disease (NAFLD) and insulin resistance. This study included 63 participants with obesity with insulin resistance diagnosed with NAFLD by ultrasonography to investigate the effects of an 8-week energy-restricted TMD, LCMD, and LFMD on biochemical findings, FLI, fibrosis-4 index (FIB-4), anthropometric measurements, and body composition. Patients were randomized into three groups and were interviewed face-to-face every week. According to the food consumption records (baseline end), the difference in the amount of sucrose and total fat consumed in the TMD group; the difference in energy intake from sucrose, monounsaturated fatty acids, and oleic acid in the LCMD group; and the difference in energy intake from fiber, sucrose, monounsaturated and polyunsaturated fatty acids, and cholesterol in the LFMD group showed significant correlations with liver enzymes and FLI (p < 0.05). In conclusion, although it has a different macronutrient composition, the Mediterranean diet may positively affect biochemical parameters and FLI in individuals with NAFLD, albeit in different ways.
Development and Validation of the Meiji Nutritional Profiling System per Serving Size
Authors: Wakayama Ryota , Drewnowski Adam , Horimoto Tomohito , Yu Tao , Saito Yoshie , Suzuki Takao , Honda Keiko , Kanaya Shigehiko , Takasugi Satoshi
Published: August 2024

Serving size may be the appropriate reference for calculating food nutritional value. We aimed to assess the nutritional values of Japanese foods based on serving sizes rather than per 100 g by adapting the Meiji Nutritional Profiling System (Meiji NPS). Given the variability in serving sizes across countries, we used Japanese serving sizes to calculate the Meiji NPS scores. We confirmed the convergent validity of the Meiji NPS scores per serving size with the Nutrient-Rich Food Index 9.3 using Spearman’s correlation coefficients (r = 0.51, p < 0.001). Food groups recommended by official guidelines, such as pulses, nuts and seeds, fish and seafood, fruits, vegetables, and milk and milk products, scored relatively high. Furthermore, the nutrient density scores of food items with small serving sizes, such as mushrooms, algae, seasonings, and fats and oils, were moderated when calculated by per serving size, despite having considerably higher or lower scores per 100 g. These results indicate that calculating NPS per serving size allows for the assessment of the nutritional value of food items in accordance with actual consumption quantities. Therefore, the Meiji NPS calculated per serving size, alongside the per 100 g version, may be useful for dietary management depending on specific purposes.
Association between Hand Hygiene Knowledge and Self-Efficacy in Nursing Students: A Multicenter Cross-Sectional Study within the Framework of the Erasmus Project
Authors: Linnik Ljudmila , Turan Nuray , Polat Dünya Cansu , Lahtinen Kati , Franck Teija , Valta Maija , Ayoğlu Tuluha , Akyüz Nuray , Coutinho Verónica , Paiva Luis , Brito Irma , Colomer-Pérez Natura , Giménez-Espert María del Carmen , Buigues Cristina , Cauli Omar
Published: August 2024

Adherence to hand hygiene procedures is crucial for all populations, and the World Health Organization (WHO) has implemented specific guidelines for infection control. Frequent and correct hand hygiene can prevent infections, but non-compliance with hand hygiene is pervasive. Nursing students address this issue from the beginning of their training. In nursing training, self-efficacy is crucial in enhancing students’ competence, motivation, and clinical performance. We performed a cross-sectional multicenter study in five European countries, with a cross-sectional design with an online application of an instrument measuring hand hygiene knowledge based on WHO guidelines and general self-efficacy and specific self-efficacy for infection control. A total of 638 first-year nursing students participated in this study. The mean percentage of correct answers was 67.9%, with a considerable difference depending on the items. The worst results were obtained for questions related to sources of infection and types of hand hygiene methods in different situations. Finnish students displayed significantly (p < 0.001) higher scores in HH knowledge, whereas Estonian students had significantly (p < 0.001) higher levels of self-efficacy. There were significant correlations between the hand hygiene knowledge score and the self-efficacy score (p < 0.001). A multivariate analysis by linear regression analysis showed significant associations between the hand hygiene knowledge survey score and the students’ age (p < 0.001, OR = 0.18, 95% CI 0.04–0.10), as well as their country of origin (p = 0.01, OR = 0.09, 95% CI 0.03–0.34). HH knowledge is quite low among nursing students, and is correlated with self-efficacy, although the strongest predictors are age and country of origin. Different nursing curricula must favor HH knowledge, with varying degrees of emphasis depending on the country.
Retrospective Study of the Epidemiological–Clinical Characteristics of Burns Treated in a Hospital Emergency Service (2018–2022)
Authors: Alcalá-Cerrillo María , González-Sánchez Josefa , González-Bernal Jerónimo J. , Santamaría-Peláez Mirian , Fernández-Solana Jessica , Sánchez Gómez Sara M. , Gómez-Martín Ana
Published: August 2024

Background: Burns are a common and severe medical emergency requiring immediate specialized care to minimize damage and prevent complications. Burn severity depends on depth, extent, and location, with more complex care needed for burns on critical areas or extensive burns. Nursing is essential in burn management, providing immediate care, adapting treatments, managing pain, preventing infections, and offering emotional support for recovery. The study aims to analyse the epidemiological and clinical characteristics of burns treated at the Hospital Emergency Department of the Hospital Complex of Cáceres (Spain) from January 2018 to December 2022. It looks at factors like gender, age, hospital stay duration, emergency type (paediatric or adult), main diagnosis, skin thickness, burn degree, affected body areas, percentage of body surface area burned, and treatment types. It also investigates how treatment varies by gender, age, skin thickness, and burn severity. The relevance of this research lies in the fact that periodic epidemiological studies are essential to monitor changes in diseases, evaluate the effectiveness of interventions, detect outbreaks quickly, update knowledge on risk factors, and guide health policy decisions. This ensures an adapted and effective response to the needs of the population. Methods: Retrospective, observational study that analysed burn cases treated at the Hospital Complex of Cáceres (Spain) 2018–2022. Inclusion criteria were based on ICD-10 codes for burns, excluding severe cases not treated in this service. Data were analysed using descriptive statistics, Student’s t-tests, Chi-square tests, and ANOVA. Results: 220 patients surveyed, with a mean age of 47 years and 60.9% male. Most burns (95.5%) affected the external body surface, with a mean hospital stay of 7.86 days. Medical treatment was provided to 75.5% of patients, and 24.5% required surgical intervention. Significant differences in treatment procedures were observed according to age, skin thickness, and burn degree. Older patients had more procedures and longer hospital stays. Excision and transfer procedures were more common in full-thickness and severe burns. Conclusions: The findings align with previous research on burn demographics and treatment approaches. Treatment differences by age and burn severity highlight the need for tailored interventions. The study underscores the importance of comprehensive burn management, including psychological support for improved long-term outcomes. Further research could explore the impact of socio-economic factors on burn incidence and treatment. This study was not registered.
Household Economic Losses and Community Knowledge Determine Control Strategies: A Case of Cerebral Coenurosis in Small Ruminants in Northern Tanzania
Authors: Nzalawahe Jahashi S. , Mlanzi Dunia S. , Lupindu Athumani M. , Ngowi Helena , Eisler Mark C.
Published: August 2024

Cerebral coenurosis affects sheep and goats worldwide and has zoonotic implications. Information on the financial burden and understanding of the disease and control practices may inform control strategies. A cross-sectional study was conducted in Babati and Ngorongoro Districts, Tanzania, to determine economic losses, farmers’ knowledge, and attitudes and practices on the control of coenurosis in small ruminants. A structured questionnaire was administered to 558 households for data collection. The total annual loss was TZS 122.8 M (USD 52.9 K) for Babati and TZS 656.5 M (USD 282.9 K) for Ngorongoro District. The average annual household financial loss was TZS 356.8 K (USD 153.83) for Babati and TZS 3.1 M (USD 1.3 K) for Ngorongoro District. Almost 90% of respondents were aware of coenurosis while less than 1% of the respondents had no knowledge of it at all. The average knowledge score was 5.85 out of 16 (36.6%), which implies a low level of knowledge on coenurosis. About 94% of respondents showed a willingness to participate and pay the control costs. Given the economic loss and favorable attitudes toward control participation, delivery of an educational package on epidemiology and control of coenurosis to livestock keepers may trigger collaborative and sustainable intervention.
Analysis of Risk Determinants of Neonatal Mortality in the Last Decade: A Systematic Literature Review (2013–2023)
Authors: Nabila Msatfa , Baidani Aziz , Mourajid Yassmine , Chebabe Milouda , Abderraouf Hilali
Published: August 2024

This study aimed to analyze the determinants of neonatal mortality over the last decade (2013–2023), identifying key factors that have influenced neonatal outcomes both before and during the COVID-19 pandemic. Utilizing a systematic literature review approach guided by the PRISMA method, this study evaluates 91 papers collected from indexed databases such as Scopus, PubMed, and Web of Science. The review encompasses studies conducted globally, offering insights into the evolution of neonatal mortality research and the impact of the COVID-19 crisis on neonatal health. The analysis revealed a complex array of risk determinants, categorized into socioeconomic factors, clinical factors, and healthcare access and quality. Notable factors include rural versus urban healthcare disparities, prenatal and postnatal care quality, and the influence of healthcare infrastructure on neonatal outcomes. This study highlights the shifting focus of neonatal mortality research in response to global health challenges, including the pandemic. The findings underscore the need for multidisciplinary approaches to address neonatal mortality, emphasizing the importance of enhancing healthcare systems, improving maternal education, and ensuring equitable access to quality care. Future research should explore the long-term effects of the COVID-19 pandemic on neonatal health and investigate the efficacy of interventions in diverse healthcare settings.
Design and Fabrication of Sustained Bacterial Release Scaffolds to Support the Microbiome
Authors: Klein Anne Marie , Qosim Nanang , Williams Gareth , Edirisinghe Mohan , Matharu Rupy Kaur
Published: August 2024

Fibres in the micro- and nanometre scale are suited to a broad range of applications, including drug delivery and tissue engineering. Electrospinning is the manufacturing method of choice, but it has some limitations. Novel pressure-driven fibre-forming techniques, like pressurised gyration (PG), overcome these limitations; however, the compatibility of PG with biological materials has not yet been evaluated in detail. For the first time, this limitation of PG was investigated by optimising PG for microbial cell processing and incorporating bacterial cultures into fibrous polymeric scaffolds for sustained release. Multiple polymer–solvent systems were trialled, including polyvinylpyrrolidone (PVP)/phosphate-buffered saline (PBS) 25% w/v, polyethylene oxide (PEO)/PBS 20% w/v, and PVP/ethanol 20% w/v. Rheological studies revealed the surface tension of the PVP/PBS, PEO/PBS, and PVP/ethanol polymer–solvent systems to be 73.2, 73.9, and 22.6 mN/m, respectively. Scanning electron microscopy showed the median fibre diameters to be between 9.8 μm and 26.1 μm, with PVP producing larger fibres. Overnight Bacillus subtilis cultures were then incorporated into the chosen polymeric solutions and processed into fibres using PG. The produced cell-loaded fibres were incubated in LB broth to assess the cell viability of the encapsulated cells. Colony counts post-incubation showed the PVP/PBS 25% fibres resulted in 60% bacterial growth, and PEO/PBS 20% fibres led to 47% bacterial growth, whereas PVP/ethanol 20% fibres did not lead to any bacterial growth. Based on the results gathered during this study, it can be concluded that PG offers a promising way of encapsulating cells and other sensitive biological products while having many notable advantages compared to electrospinning. This research demonstrates proof of concept research-based evidence and showcases the potential of pressurised gyration as a key disruptive innovation in probiotic delivery system design and manufacturing.
Entangled Probability Distributions for Center-of-Mass Tomography
Authors: Dudinets Ivan V. , Man’ko Margarita A. , Man’ko Vladimir I.
Published: August 2024

We review the formalism of center-of-mass tomograms, which allows us to describe quantum states in terms of probability distribution functions. We introduce the concept of separable and entangled probability distributions for center-of-mass tomography. We obtain the time evolution of center-of-mass tomograms of entangled states of the inverted oscillator.
An Up-to-Date Overview of Liquid Crystals and Liquid Crystal Polymers for Different Applications: A Review
Authors: Guardià Jordi , Reina José Antonio , Giamberini Marta , Montané Xavier
Published: August 2024

Liquid crystals have been extensively used in various applications, such as optoelectronic devices, biomedical applications, sensors and biosensors, and packaging, among others. Liquid crystal polymers are one type of liquid crystal material, combining their intrinsic properties with polymeric flexibility for advanced applications in displays and smart materials. For instance, liquid crystal polymers can serve as drug nanocarriers, forming cubic or hexagonal mesophases, which can be tailored for controlled drug release. Further applications of liquid crystals and liquid crystal polymers include the preparation of membranes for separation processes, such as wastewater treatment. Furthermore, these materials can be used as ion-conducting membranes for fuel cells or lithium batteries due to their broad types of mesophases. This review aims to provide an overall explanation and classification of liquid crystals and liquid crystal polymers. Furthermore, the great potential of these materials relies on their broad range of applications, which are determined by their unique properties. Moreover, this study provides the latest advances in liquid crystal polymer-based membranes and their applications, focusing especially on fuel cells. Moreover, future directions in the applications of various liquid crystals are highlighted.
An Experimental Study on the Thermomechanical Coupling Effects of Carbon-Fiber-Reinforced Polyetheretherketone under Dynamic Impact
Authors: Nie Shuyan , Chen Liming , Yun Zhaoxin , Wang Jie , Pan Xin
Published: August 2024

Carbon-fiber-reinforced polyetheretherketone (CF/PEEK) composites are widely utilized in aerospace, medical devices, and automotive industries, renowned for their superior mechanical properties and high-temperature resistance. Despite these advantages, the thermomechanical coupling behavior of CF/PEEK under dynamic loading conditions is not well understood. This study aims to explore the thermomechanical coupling effects of CF/PEEK at elevated strain rates, employing Hopkinson bar impact tests and scanning electron microscopy (SEM) for detailed characterization. Our findings indicate that an increase in temperature led to significant reductions in the yield strength, peak stress, and specific energy absorption of CF/PEEK, while fracture strain had no significant effect. For instance, at 200 °C, the yield strength, peak stress, and specific energy absorption decreased by 39%, 37%, and 38%, respectively, compared to their values at 20 °C. Furthermore, as the strain rate increased, the yield strength, peak stress, specific energy absorption, and fracture strain all exhibited strain-hardening effects. However, as the strain rate further increased, above 4000 s−1, the enhancing effect of the strain rate on the yield strength and peak stress gradually diminished. The interaction of the temperature and strain rate significantly affected the mechanical performance of CF/PEEK under high-speed impact conditions. While the strain rate generally enhanced these properties, the strain-hardening effect on the yield strength weakened as the temperature increased, and both the temperature and strain rate contributed to the increase in specific energy absorption. Microdamage mechanism analysis revealed that interface debonding and sliding between the fibers and the matrix were more pronounced under static compression than under dynamic compression, thereby diminishing the efficiency of stress transfer. Additionally, higher temperatures caused the PEEK matrix to soften and exhibit increased viscoelastic behavior, which in turn affected the material’s toughness and the mechanisms of stress transfer. These insights hold substantial engineering significance, particularly for the optimization of CF/PEEK composite design and applications in extreme environments.
Hyperbranched Cellulose for Dye Removal in Aqueous Medium
Authors: Lima Luciano Clécio Brandão , Silva Lucinaldo dos Santos , Silva Fabrícia de Castro , Ferreira Francisco José Lustosa , da Fonseca Maria Gardênnia , Osajima Josy Anteveli , Filho Edson Cavalcanti da Silva
Published: August 2024

In recent decades, cellulose (Cel) and its modified forms have emerged as a new class of versatile adsorbents for removing dyes from aqueous solutions. This work reports the immobilization of macromolecules obtained from reactions between ethylenediamine (N) and ethylene sulfide (S) in three molar proportions (1:1, 1:2, and 1:4) on the surface of chlorinated cellulose (Cl-Cel), aiming to increase the adsorption capacity of dyes. The materials obtained (NS-Cel, N2S-Cel, and N4S-Cel) were characterized by elemental analysis, which demonstrated immobilization of macromolecules with a ratio of 12 ethylene sulfides to 1 ethylenediamine in the materials NS-Cel and N4S-Cel and a ratio of 10 ethylene sulfides to 1 ethylenediamine in NS-Cel. Intense C-H stretching bands of CH2 groups at 2900 cm−1 in the FT-IR spectra suggest a large amount of the functional group, corroborating the 13C NMR spectra, which presented a signal at 33 ppm referring to methylene carbons. The materials obtained had excellent performance in removing the dyes studied, with the adsorption capacity of the Remazol yellow GR dye being approximately 24 times greater than the raw material (87.70 ± 2.63 mg g−1) for the best-hyperbranched cellulose N4S-Cel and 3.60 ± 0.18 mg g−1 for Cel, and about ten times higher for the dye Remazol red RB (57.84 ± 1.73 mg g−1) for N4S-Cel compared to previously published work for Cel.
A Kashmiri Woman Stuck in Crossfire: Exploring the Impact of Militarisation on Everyday Lives in Farah Bashir’s Rumours of Spring
Authors: Adish A. S. , Mathew Reju George
Published: August 2024

Political conflict has plagued Kashmir, a Muslim-majority region of Hindu-majority India, ever since the partition. The crisis worsened by the end of the 1980s and has continued to disrupt peace in the valley to date. The conflict arguably entered a new phase as the Hindu nationalist Bharatiya Janata Party (BJP) was elected to power in 2014, which also joined the ruling coalition of the Jammu and Kashmir state in 2015 for the first time. Over this period, Kashmir’s resistance evolved into subtler forms, including cultural expressions like memoirs. Published in 2021, Farah Bashir’s debut work, Rumours of Spring, is a deeply personal yet undeniably political exploration of the crisis in Kashmir from its aggravated phase in the beginning of the 1990s. This paper argues that the nuanced depiction of the crisis in the memoir demands an intersectional reading of the traumatising impact of militarisation and militarism on Kashmir’s everyday life, especially given the subject position of the narrator as a Muslim woman. The works on militarisation by Jacklyn Cock, as employed by Samreen Mushtaq to analyse the situation in Kashmir, provide theoretical insights for this reading. Set in Kashmir’s identitarian conflict, the Muslim identity is central to the narrative. We argue that in Bashir’s memoir, religion finds a complex representation, with the Qur’an and Kashmiri folklore serving as respites in times of crisis, even as the fundamentalist factions contribute to their oppressive reality. Bashir’s work openly engages with the experience of being a Muslim in Hindu India. The paper also attempts to place the work in a larger corpus of life-writing by women in conflict zones, comparing the work with Sharon and My Mother-in-Law: Ramallah Diaries (2003), a Palestinian memoir by Suad Amiry.
Muslim, Not Supermuslim: A Critique of Islamicate Transhumanism
Authors: Ali Syed Mustafa
Published: August 2024

Informed by ideas drawn from critical race theory and decolonial thought, in this paper, I mount a critique of Roy Jackson’s proposal for an Islamicate philosophical and theological contribution to the Transhumanist goal of forging a posthuman successor to humanity. My principal concern is to draw attention to the assimilatory nature and status of Islamicate Transhumanism within the broader context of Transhumanism, understood as a technological articulation and refinement of global white supremacy in a technoscientific register.
Attitudes of Catholic Clergies to the Application of ChatGPT in Unite Religious Communities
Authors: Ignatowski Grzegorz , Sułkowski Łukasz , Przybyszewski Krzysztof , Seliga Robert
Published: August 2024

The article “Attitudes of Catholic clergies to the application of ChatGPT in unite religious communities” investigates the perspectives of the Catholic clergy on the integration of ChatGPT technology in religious environments. Bearing in mind that communication technologies are becoming an integral part of every aspect of life, including religious practices, the study delves into the potential, advantages, and challenges associated with using ChatGPT to support religious discourse. Adopting a qualitative approach, in-depth interviews were conducted with eleven Polish priests, addressing the diversity within the group. The respondents, who play important roles in organising the life of Catholic religious communities, highlighted ChatGPT’s potential in enhancing the dissemination of information, educational initiatives, and pastoral care. However, they also expressed concerns about the technology’s impact on genuine human interactions and the preservation of religious practices.
“And They Shall Be Two in One Flesh”: A Scotistic Exploration of Marriage, Intersubjectivity, and Interpersonality
Authors: Gordon Liran Shia
Published: August 2024

Marriage is an institution known for both its virtues and challenges. This study examines marriage not merely as a sociological or theological construct but as a lens to explore the profound philosophical problems of intersubjectivity and interpersonality. By examining both the relational and sacramental dimensions of marriage, we gain insights into how two distinct individuals can form a deep, enduring bond that transcends individual isolation, thus offering a model for understanding both intersubjectivity and interpersonality. The unique perspective offered by Christian theology, which regards marriage as a sacrament, entails a fundamental and irreversible transformation in the individuals involved. This provides a unique venue to address intersubjectivity and interpersonality using unconventional sources and analysis. The objective is not to advocate for Catholic doctrine or any specific religious perspective but to deploy the sacramental understanding of matrimony and its conceptual framework to address these intertwined philosophical issues.
How Did Chinese Buddhists Incorporate Indian Metaphors? A Study of Lushan Huiyuan’s Use of Firewood–Fire Metaphors in the Shadow of Indian Canons
Authors: Xin Fang
Published: August 2024

In the discourse of Lushan Huiyuan 廬山慧遠, the firewood–fire metaphor (xinghuozhiyu 薪火之喻) is employed to illustrate personhood (shen 神), referring to pudgala. Scholars often criticize Huiyuan for interpreting personhood as a true “self” (ātman) under the influence of the Vātsīputrīya school, thus contradicting the doctrine of non-self. This paper suggests that this might be a dual misunderstanding of both Huiyuan and the Vātsīputrīya school. Huiyuan’s firewood–fire metaphor is indeed profoundly influenced by the Vātsīputrīyas’ three kinds of designation. Yet, he never commits to the substantial self, and his argument primarily aims to refute the view of annihilationism (duanmie 斷滅), that is, that life ceases to exist after one period ends. This stance fully aligns with the doctrine of non-self that has been central since the inception of Buddhism. Additionally, Huiyuan’s explanation of the indestructibility of personhood (shen bumie 神不滅) is a reluctant proposition; its fundamental purpose does not lie in discussing transmigration, but rather in demonstrating the state of “body and mind both cease” following the cessation of causes and conditions once “transmigration ends”.
Applying Daoist Thoughts of Interconnectedness to Disaster Communities: Through the Lenses of Diaspora and Pluralism
Authors: Kim Dugsam , Kim Taesoo
Published: August 2024

The human community confronts a plethora of disasters, including man-made epidemics like COVID-19, environmental problems such as water and food resource depletion, biochemical warfare, and even threats from human-created artificial intelligence. Consequently, it is appropriate to term our current community a “disaster community”. This paper delves into the issue of diaspora, intrinsically linked to the fragmentation problem in the disaster community, where each subgroup tends to focus solely on its own community. This issue is scrutinized by categorizing the diaspora into larger and smaller categories, with cases from both the international and domestic levels examined respectively within each category. Among the many Daoist philosophical concepts, this paper focuses on the Daoist principle of interconnectedness. In examining Daoist thought on interconnectedness, it also confirms that the notion of interconnectedness is being increasingly emphasized in modern society and across various academic disciplines. This perspective affirms the pluralistic nature of existence, while also underscoring the fundamental interconnectedness that underpins the myriad forms and phenomena. It provides a framework for addressing the challenges faced by the disaster community, particularly in relation to issues of diaspora, by emphasizing the need for coexistence and collective responsibility within a web of mutual relations. The philosophy innovatively applied from Daoism emphasizes “recognizing diversity based on Dao, while acknowledging that each existence is interconnected”. Here, “recognition of diversity based on Dao” underpins pluralism, and “interconnectedness of all existence” forms the fundamental solution to the diaspora problem. This approach could be extended as a strategic response to various disasters that the human community encounters. Therefore, this paper assesses the current state of the disaster community, the severity of the diaspora issue, and some cases both between and within nations. It also discusses the core of Daoist philosophy and its creative application to overcome these challenges. The disaster community should transition towards a sustainable and open community, and on this journey, by acknowledging our interconnectedness, we can find solutions to not only the disasters we confront but also to the diaspora problem.
Pose Estimation Based on Bidirectional Visual–Inertial Odometry with 3D LiDAR (BV-LIO)
Authors: Peng Gang , Gao Qiang , Xu Yue , Li Jianfeng , Deng Zhang , Li Cong
Published: August 2024

Due to the limitation of a single sensor such as only camera or only LiDAR, the Visual SLAM detects few effective features in the case of poor lighting or no texture. The LiDAR SLAM will also degrade in an unstructured environment and open spaces, which reduces the accuracy of pose estimation and the quality of mapping. In order to solve this problem, on account of the high efficiency of Visual odometry and the high accuracy of LiDAR odometry, this paper investigates the multi-sensor fusion of bidirectional visual–inertial odometry with 3D LiDAR for pose estimation. This method can couple the IMU with the bidirectional vision respectively, and the LiDAR odometry is obtained assisted by the bidirectional visual inertial. The factor graph optimization is constructed, which effectively improves the accuracy of pose estimation. The algorithm in this paper is compared with LIO-LOAM, LeGO-LOAM, VINS-Mono, and so on using challenging datasets such as KITTI and M2DGR. The results show that this method effectively improves the accuracy of pose estimation and has high application value for mobile robots.
Cartographic Generalization of Islands Using Remote Sensing Images for Multiscale Representation
Authors: Li Renzhu , Shen Yilang , Dai Wanyue
Published: August 2024

The multi-scale representation of remote sensing images provides various levels of image information crucial for decision-making in GIS applications and plays a significant role in information processing, data analysis, and geographic modeling. Traditional methods for multi-scale representation of remote sensing images often struggle to simplify local details of individual targets while preserving the overall characteristics of target groups. These methods also encounter issues such as transitional texture distortion and rough final boundaries. This paper proposes a novel multi-scale representation method for remote sensing images based on computer vision techniques, which effectively maintains the overall characteristics of target groups. Initially, the K-means algorithm is employed to distinguish between islands and oceans. Subsequently, a superpixel segmentation algorithm is used to aggregate island groups and simplify the generated boundaries. Finally, texture synthesis and transfer are applied based on the original image to produce the aggregated island images. Evaluation metrics demonstrate that this method can generate multi-scale aggregated images of islands, effectively eliminate redundant information, and produce smooth boundaries.