bluuebunny/crossref_metadata_2025 huggingface dataset:
Assessment of Hydrazone Derivatives for Enhanced Steel Corrosion Resistance in 15 wt.% HCl Environments: A Dual Experimental and Theoretical Perspective
Authors: El-khlifi Abdelilah , Zouhair Fatima Zahrae , Al-Hadeethi Mustafa R. , Lgaz Hassane , Lee Han-seung , Salghi Rachid , Hammouti Belkheir , Erramli Hamid
Published: February 2024

This study evaluates the corrosion inhibition capabilities of two novel hydrazone derivatives, (E)-2-(5-methoxy-2-methyl-1H-indol-3-yl)-N′-(4-methylbenzylidene)acetohydrazide (MeHDZ) and (E)-N′-benzylidene-2-(5-methoxy-2-methyl-1H-indol-3-yl)acetohydrazide (HHDZ), on carbon steel in a 15 wt.% HCl solution. A comprehensive suite of analytical techniques, including gravimetric analysis, potentiodynamic polarization (PDP), electrochemical impedance spectroscopy (EIS), and scanning electron microscopy (SEM), demonstrates their significant inhibition efficiency. At an optimal concentration of 5 × 10−3 mol/L, MeHDZ and HHDZ achieve remarkable inhibition efficiencies of 98% and 94%, respectively. EIS measurements reveal a dramatic reduction in effective double-layer capacitance (from 236.2 to 52.8 and 75.3 µF/cm2), strongly suggesting inhibitor adsorption on the steel surface. This effect is further corroborated by an increase in polarization resistance and a significant decrease in corrosion current density at optimal concentrations. Moreover, these inhibitors demonstrate sustained corrosion mitigation over extended exposure durations and maintain effectiveness even under elevated temperatures, highlighting their potential for diverse operational conditions. The adsorption process of these inhibitors aligns well with the Langmuir adsorption isotherm, implying physicochemical interactions at the carbon steel surface. Density functional tight-binding (DFTB) calculations and molecular dynamics simulations provide insights into the inhibitor-surface interaction mechanism, further elucidating the potential of these hydrazone derivatives as highly effective corrosion inhibitors in acidic environments.
Differences between Health and Non-Health Science Students in Lifestyle Habits, Perceived Stress and Psychological Well-Being: A Cross-Sectional Study
Authors: Marendić Mario , Aranza Diana , Aranza Ivan , Vladislavić Silvija , Kolčić Ivana
Published: February 2024

The aim of this study was to investigate lifestyle habits in health and non-health science students from the University of Split, Croatia, and to evaluate their association with perceived stress and psychological well-being. We surveyed 783 students during February–March 2021. Hierarchical multiple regression analysis was used in the analysis. Health science students spent less time using screens, were sitting less, slept less, but also showed better compliance with the Mediterranean diet compared to non-health science students (10.6% vs. 5.9%). There were no differences in stress and well-being perception between the two study groups. Female gender, lack of sleep, less daily sitting time, anxiety, and lower optimism were associated with higher stress in non-health science students, while anxiousness and more sitting were found to be significant among health students. Well-being among health science students was positively associated with BMI, having had COVID-19, being refreshed after waking up during working days, Mediterranean diet adherence, health perception, optimism, and quality of life, and negatively with TV time and anxiousness. Shorter sleep duration on non-working days, feeling refreshed after waking up on non-working days, higher quality of life and optimism, and lower anxiousness were associated with higher well-being among non-health students. Identifying unhealthy lifestyle habits in students is essential for implementing targeted interventions to better their health outcomes.
Knowledge of Dietitians on Gut Microbiota in Health—An Online Survey of the European Federation of the Associations of Dietitians (EFAD)
Authors: Mitsou Evdokia , Katsagoni Christina , Janiszewska Katarzyna
Published: February 2024

Explorations of current knowledge of dietitians about gut-health interconnection and the role of diet in gut microbiota manipulation are rather scarce in the literature. In this online survey we assessed the perceived and current knowledge of dietitians across Europe about gut microbiota and systemic health, nutrition as a modulator of the gut ecosystem, and the role of probiotics and prebiotics. Pre-graduate dietetic students and other professionals were also invited to participate. A total of 179 full responses were recorded (dietitians, n = 155), mainly from Southern and Western regions. Most participants (>78.0%) reported an average to good level of perceived knowledge, with significant positive correlations between perceived and current knowledge in all sections and overall (p for all <0.05). Nevertheless, a rather low current knowledge scoring of participants about probiotics and prebiotics was observed. Features such as being a dietitian, having a higher educational level as dietitian and working in an academic/research setting were usually associated with higher current knowledge. Further analysis revealed that dietitians had a trend for higher scoring about probiotics and prebiotics compared to pre-graduate students or other professionals. Moreover, for dietitians, working in an academic or research setting was an independent factor for scoring in the highest quartile in all tested sections and overall (p for all <0.05). In conclusion, this online survey shed some light on the current knowledge of dietitians across Europe about gut microbiota parameters, including dietary modulation, highlighting in parallel possible knowledge determinants. Potential areas for future educational efforts in this rather unexplored field were indicated.
Sulforaphane Inhibits Adhesion and Migration of Cisplatin- and Gemcitabine-Resistant Bladder Cancer Cells In Vitro
Authors: Xie Hui , Rutz Jochen , Maxeiner Sebastian , Grein Timothy , Thomas Anita , Juengel Eva , Chun Felix K.-H. , Cinatl Jindrich , Haferkamp Axel , Tsaur Igor , Blaheta Roman A.
Published: February 2024

Only 20% of patients with muscle-invasive bladder carcinoma respond to cisplatin-based chemotherapy. Since the natural phytochemical sulforaphane (SFN) exhibits antitumor properties, its influence on the adhesive and migratory properties of cisplatin- and gemcitabine-sensitive and cisplatin- and gemcitabine-resistant RT4, RT112, T24, and TCCSUP bladder cancer cells was evaluated. Mechanisms behind the SFN influence were explored by assessing levels of the integrin adhesion receptors β1 (total and activated) and β4 and their functional relevance. To evaluate cell differentiation processes, E- and N-cadherin, vimentin and cytokeratin (CK) 8/18 expression were examined. SFN down-regulated bladder cancer cell adhesion with cell line and resistance-specific differences. Different responses to SFN were reflected in integrin expression that depended on the cell line and presence of resistance. Chemotactic movement of RT112, T24, and TCCSUP (RT4 did not migrate) was markedly blocked by SFN in both chemo-sensitive and chemo-resistant cells. Integrin-blocking studies indicated β1 and β4 as chemotaxis regulators. N-cadherin was diminished by SFN, particularly in sensitive and resistant T24 and RT112 cells, whereas E-cadherin was increased in RT112 cells (not detectable in RT4 and TCCSup cells). Alterations in vimentin and CK8/18 were also apparent, though not the same in all cell lines. SFN exposure resulted in translocation of E-cadherin (RT112), N-cadherin (RT112, T24), and vimentin (T24). SFN down-regulated adhesion and migration in chemo-sensitive and chemo-resistant bladder cancer cells by acting on integrin β1 and β4 expression and inducing the mesenchymal–epithelial translocation of cadherins and vimentin. SFN does, therefore, possess potential to improve bladder cancer therapy.
Sarcocystis spp. of New and Old World Camelids: Ancient Origin, Present Challenges
Authors: Wieser Sarah N. , Giuliano Susana M. , Reategui Ordoñez Juan , Barriga Marcapura Ximena , Olivera Luis V. M. , Chavez Fumagalli Miguel Angel Chavez , Schnittger Leonhard , Florin-Christensen Mónica
Published: February 2024

Sarcocystis spp. are coccidian protozoans belonging to the Apicomplexa phylum. As with other members of this phylum, they are obligate intracellular parasites with complex cellular machinery for the invasion of host cells. Sarcocystis spp. display dixenous life cycles, involving a predator and a prey as definitive and intermediate hosts, respectively. Specifically, these parasites develop sarcocysts in the tissues of their intermediate hosts, ranging in size from microscopic to visible to the naked eye, depending on the species. When definitive hosts consume sarcocysts, infective forms are produced in the digestive system and discharged into the environment via feces. Consumption of oocyst-contaminated water and pasture by the intermediate host completes the parasitic cycle. More than 200 Sarcocystis spp. have been described to infect wildlife, domestic animals, and humans, some of which are of economic or public health importance. Interestingly, Old World camelids (dromedary, domestic Bactrian camel, and wild Bactrian camel) and New World or South American camelids (llama, alpaca, guanaco, and vicuña) can each be infected by two different Sarcocystis spp: Old World camelids by S. cameli (producing micro- and macroscopic cysts) and S. ippeni (microscopic cysts); and South American camelids by S. aucheniae (macroscopic cysts) and S. masoni (microscopic cysts). Large numbers of Old and New World camelids are bred for meat production, but the finding of macroscopic sarcocysts in carcasses significantly hampers meat commercialization. This review tries to compile the information that is currently accessible regarding the biology, epidemiology, phylogeny, and diagnosis of Sarcocystis spp. that infect Old and New World camelids. In addition, knowledge gaps will be identified to encourage research that will lead to the control of these parasites.
Targeting MutT Homolog 1 (MTH1) for Breast Cancer Suppression by Using a Novel MTH1 Inhibitor MA−24 with Tumor-Selective Toxicity
Authors: Kang Nannan , Ma Jun , Hu Yuling , Di Rongrong , Wang Lei , Zhang Xuanling , Lai Yisheng , Liu Yu
Published: February 2024

Background: Breast cancer is a commonly diagnosed cancer worldwide. Human MutT homolog 1 (MTH1) is found to be elevated in breast tumors and cancer cells need MTH1 for survival. Pharmacological inhibition of MTH1 may be potentially beneficial in the treatment of breast cancer. Methods: MA−24 was screened by malachite green colorimetric assay for MTH1 inhibitors and the kinetic characteristics of MA−24 were assessed. The features of MA−24’s binding with MTH1 were ascertained through molecular docking, and the cytotoxic activity of MA−24 was validated in vitro and in vivo. Target engagement assays, comet assay, and Western blot confirmed the intracellular target and mechanism of MA−24. Results: MA−24 shows potent antitumor bioactivity both in vitro and in vivo. MA−24 competitively inhibited the MTH1 and further induced DNA strand breaks, leading to increased apoptosis of cancer cells depending on the upregulation of the cleaved-caspase 3–cleaved-PARP axis. In particular, MA−24 exhibited a powerful efficacy and safety in vivo (tumor growth inhibition rate: 61.8%). Conclusions: MA−24 possesses a broad spectrum of breast cancer cytotoxicity and offered valuable insights for overcoming the challenges of chemotherapy-related toxicity, which holds great potential for the further development MA−24 as an anti-cancer drug.
Using Planar Metamaterials to Design a Bidirectional Switching Functionality Absorber—An Ultra-Wideband Optical Absorber and Multi-Wavelength Resonant Absorber
Authors: Liao Shu-Han , Wang Chih-Hsuan , Ke Pei-Xiu , Yang Cheng-Fu
Published: February 2024

This study aimed to investigate a bidirectional switching functionality absorber, which exhibited an ultra-wideband characteristic in one direction, while in the other direction it demonstrated the absorption of three different resonant wavelengths (frequencies). The fully layered planar structure of the absorber consisted of Al2O3, Zr, yttria-stabilized zirconia (YSZ), Zr, YSZ, Al, YSZ, and Al. The simulations were conducted using the COMSOL Multiphysics® simulation software (version 6.1) for analyses, and this study introduced three pivotal innovations. Firstly, there had been scarce exploration of YSZ and Zr as the materials for designing absorbers. The uses of YSZ and Zr in this context were a relatively uncharted territory, and our research endeavored to showcase their distinctive performance as absorber materials. Secondly, the development of a planar absorber with multifunctional characteristics was a rarity in the existing literature. This encompassed the integrations of an ultra-wideband optical absorber and the creation of a multi-wavelength resonant absorber featuring three resonant wavelengths. The design of such a multi-wavelength resonant absorber holds promise for diverse applications in optical detection and communication systems, presenting novel possibilities in related fields. Lastly, a notable discovery was demonstrated: a discernible redshift phenomenon in the wavelengths of the three resonant peaks when the thickness of YSZ, serving as the material of resonant absorber layer, was increased.
Pelagic Sargassum as a Potential Vector for Microplastics into Coastal Ecosystems
Authors: Aldana Arana Dalila , Gil Cortés Tania P. , Castillo Escalante Víctor , Rodríguez-Martínez Rosa E.
Published: February 2024

Macroalgal blooms are increasing globally, with those linked to pelagic Sargassum affecting over 30 nations since 2011. As Sargassum mats traverse the Atlantic Ocean and the Caribbean Sea, they entrap and transport plastic to coastal areas, intensifying pollution in diverse ecosystems. This research assessed microplastics (MPs) within Sargassum fluitans III collected from the northern Mexican Caribbean coast (March 2021 to January 2022). The study employed a hydrogen peroxide protocol for macroalgae pretreatment to optimize MP extraction. All samples analyzed contained MPs at monthly mean concentrations that ranged from 3.5 to 15.3 MPs g−1 DW, with fibers constituting ≥90%. Fiber colors, mainly transparent, blue, and black, exhibited diverse sizes and wear stages. The study underscores the pervasive and consistent presence of MPs in pelagic Sargassum reaching the Mexican Caribbean. Considering the documented Sargassum influxes to this coast in recent years (2789–11,297 tons km−1 yr−1), potential annual MP influxes range from 0.1 × 109 to 17.3 × 109 km−1 yr−1. Efficiently removing beach-cast Sargassum and directing it to landfills could serve as a viable strategy for the simultaneous removal of attached MPs from the ocean and coastal waters, offering a promising mitigation strategy to combat plastic pollution in the examined marine environment.
Genetic Basis of Potato Tuber Defects and Identification of Heat-Tolerant Clones
Authors: Gautam Sanjeev , Pandey Jeewan , Scheuring Douglas C. , Koym Jeffrey W. , Vales M. Isabel
Published: February 2024

Heat stress during the potato growing season reduces tuber marketable yield and quality. Tuber quality deterioration includes external (heat sprouts, chained tubers, knobs) and internal (vascular discoloration, hollow heart, internal heat necrosis) tuber defects, as well as a reduction in their specific gravity and increases in reducing sugars that result in suboptimal (darker) processed products (french fries and chips). Successfully cultivating potatoes under heat-stress conditions requires planting heat-tolerant varieties that can produce high yields of marketable tubers, few external and internal tuber defects, high specific gravity, and low reducing sugars (in the case of processing potatoes). Heat tolerance is a complex trait, and understanding its genetic basis will aid in developing heat-tolerant potato varieties. A panel of 217 diverse potato clones was evaluated for yield and quality attributes in Dalhart (2019 and 2020) and Springlake (2020 and 2021), Texas, and genotyped with the Infinium 22 K V3 Potato Array. A genome-wide association study was performed to identify genomic regions associated with heat-tolerance traits using the GWASpoly package. Quantitative trait loci were identified on chromosomes 1, 3, 4, 6, 8, and 11 for external defects and on chromosomes 1, 2, 3, 10, and 11 for internal defects. Yield-related quantitative trait loci were detected on chromosomes 1, 6, and 10 pertaining to the average tuber weight and tuber number per plant. Genomic-estimated breeding values were calculated using the StageWise package. Clones with low genomic-estimated breeding values for tuber defects were identified as donors of good traits to improve heat tolerance. The identified genomic regions associated with heat-tolerance attributes and the genomic-estimated breeding values will be helpful to develop new potato cultivars with enhanced heat tolerance in potatoes.
Religious Experiences in the Context of Bipolar Disorder: Serious Pathology and/or Genuine Spirituality? A Narrative Review against the Background of the Literature about Bipolar Disorder and Religion
Authors: Ouwehand Eva
Published: February 2024

Literature about bipolar disorder and religion is scarce and primarily encompasses studies with a quantitative design. Results of such studies do not lead to unambiguous conclusions about the relation between bipolar disorder and religion that could be applied in clinical practice. The main focus of this article will be on the domain of religious experiences/religious delusions and hallucinations as explored in two recent PhD studies regarding mixed methods and qualitative research, conducted in the Netherlands and in Canada. In the narrative review of the two studies, the occurrence of different types of religious experiences and various explanatory models of patients to interpret them are presented. The interpretation of religious experiences, often related to mania, proves to be an intense quest, and often a struggle for many patients, whereby fluctuations in mood, course of the illness, religious or philosophical background, and the reactions of relatives and mental health professionals all play a role. Patients combine various explanatory models, both medical and religious/cultural, to interpret their experiences and these may fluctuate over the years. The two studies are placed in the context of literature about bipolar disorder and various aspects of religion to date. Finally, the challenges for future research and the implications for clinical practice will be outlined.
Creating the Multifaith Chapel, 1938–1955: Architecture and the Changing Understanding of “Religion”
Authors: Kilde Jeanne Halgren
Published: February 2024

Interfaith or multifaith chapels are so ubiquitous now in the United States—present in colleges and universities, hospitals, shopping malls, and airports—that their development as a distinct architectural form is often taken for granted. Yet that development in the mid-twentieth century was complex and even fraught. Taking a religious studies approach, this article examines the development of three early examples—the Chapel of the Four Chaplains, the Brandeis University chapels, and the MIT Chapel—to reveal the gradual movement, conceptual and architectural, toward a viable space serving many religions. While the former two examples proved unsuccessful in their goal of establishing a shared interfaith space due to their reliance on an understanding of religion as discrete traditions that resulted in exclusivist incompatibilities, the latter example moved beyond the emphasis on traditions to advance an unconventional, phenomenological understanding of religion as individual experience and spiritual life, and by doing so successfully achieved the goal of creating a space amenable to practitioners of many traditions, or none. Further, this article demonstrates how architecture functioned as a constitutive component in the developmental and popularization of this fresh understanding of religion and religious experience.
A New Evapotranspiration-Based Drought Index for Flash Drought Identification and Monitoring
Authors: Li Peng , Jia Li , Lu Jing , Jiang Min , Zheng Chaolei
Published: February 2024

Flash droughts, a type of extreme event characterized by the sudden onset and rapid intensification of drought conditions with severe impacts on ecosystems, have become more frequent in recent years due to global warming. The drought index is an effective way to monitor drought and mitigate its negative impact on human production and life. This study presents a new flash drought identification and monitoring method based on the evapotranspiration-based drought index, i.e., the evaporative stress percentile (ESP). This ESP-based method considers both the rate of the rapid intensification and each phase of flash drought development, which allows it to be used quantitative assessment of flash drought characteristics including detailed information on the onset, development, termination, and intensity. The ESP is evaluated using the soil moisture percentile (SMP) derived from the GLDAS-Noah soil moisture data. The results show that there was good agreement between the ESP and SMP across most of China, with correlation coefficient values above 0.8 and MAE values below 10 percentile/week. The ESP was then used to identify flash droughts in China and compared with the Precipitation Anomaly Percentage (PAP) and the SMP for three cases of typical flash drought events in three different regions and years with different land covers. It demonstrates the robustness of the ESP for detecting flash droughts in different geographical regions, for different land cover types, and for different climatic characteristics. This method is applied to characterize historical flash droughts in 1979–2018 in China, and the results show that flash droughts in China occur most frequently in the transitional climate zone between humid and arid regions in Northern China. This study contributes to a better understanding of flash drought development and supports to decision-makers in providing early warnings for flash droughts.
From Sensors to Digital Twins toward an Iterative Approach for Existing Manufacturing Systems
Authors: Renard Dimitri , Saddem Ramla , Annebicque David , Riera Bernard
Published: February 2024

Digital twin technology is a highly valued asset in the manufacturing sector, with its unique capability to bridge the gap between the physical and virtual parts. The impact of the rapid increase in this technology is based on the collection of real-world data, its standardization, and its widespread deployment on an existing manufacturing system. This encompasses sensor values, PLC internal states, and IoT, as well as how the means of linking these data with their digital counterparts. It is challenging to implement digital twins on a large scale due to the heterogeneity of protocols and data structuring of subsystems. To facilitate the integration of the digital twin into existing manufacturing architectures, we propose in this paper a framework that enables the deployment of scalable digital twins from sensors to services of digital twins in an iterative manner.
Mouthguard-Type Wearable Sensor for Monitoring Salivary Turbidity to Assess Oral Hygiene
Authors: Ichikawa Kenta , Iitani Kenta , Kawase Gentaro , Toma Koji , Arakawa Takahiro , Dao Dzung Viet , Mitsubayashi Kohji
Published: February 2024

Salivary turbidity is a promising indicator for evaluating oral hygiene. This study proposed a wearable mouthguard-type sensor for continuous and unconstrained measurement of salivary turbidity. The sensor evaluated turbidity by measuring the light transmittance of saliva with an LED and a phototransistor sealed inside a double-layered mouthguard. The sensor was also embedded with a Bluetooth wireless module, enabling the wireless measurement of turbidity. The mouthguard materials (polyethylene terephthalate-glycol and ethylene-vinyl acetate) and the wavelength of the LED (405 nm) were experimentally determined to achieve high sensitivity in salivary turbidity measurement. The turbidity quantification characteristic of the proposed sensor was evaluated using a turbidity standard solution, and the sensor was capable of turbidity quantification over a wide dynamic range of 1–4000 FTU (formazine turbidity unit), including reported salivary turbidity (400–800 FTU). In vitro turbidity measurement using a saliva sample showed 553 FTU, which is equivalent to the same sample measured with a spectrophotometer (576 FTU). Moreover, in vivo experiments also showed results equivalent to that measured with a spectrophotometer, and wireless measurement of salivary turbidity was realized using the mouthguard-type sensor. Based on these results, the proposed mouthguard-type sensor has promising potential for the unconstrained continuous evaluation of oral hygiene.
Chlorophyll Fluorescence Imaging for Environmental Stress Diagnosis in Crops
Authors: Park Beomjin , Wi Seunghwan , Chung Hwanjo , Lee Hoonsoo
Published: February 2024

The field of plant phenotype is used to analyze the shape and physiological characteristics of crops in multiple dimensions. Imaging, using non-destructive optical characteristics of plants, analyzes growth characteristics through spectral data. Among these, fluorescence imaging technology is a method of evaluating the physiological characteristics of crops by inducing plant excitation using a specific light source. Through this, we investigate how fluorescence imaging responds sensitively to environmental stress in garlic and can provide important information on future stress management. In this study, near UV LED (405 nm) was used to induce the fluorescence phenomenon of garlic, and fluorescence images were obtained to classify and evaluate crops exposed to abiotic environmental stress. Physiological characteristics related to environmental stress were developed from fluorescence sample images using the Chlorophyll ratio method, and classification performance was evaluated by developing a classification model based on partial least squares discrimination analysis from the image spectrum for stress identification. The environmental stress classification performance identified from the Chlorophyll ratio was 14.9% in F673/F717, 25.6% in F685/F730, and 0.209% in F690/F735. The spectrum-developed PLS-DA showed classification accuracy of 39.6%, 56.2% and 70.7% in Smoothing, MSV, and SNV, respectively. Spectrum pretreatment-based PLS-DA showed higher discrimination performance than the existing image-based Chlorophyll ratio.
Research on an Equivalent Heat Source Model of the AC Arc in the Short Gap of a Copper-Core Cable and a Fire Risk Assessment Method
Authors: Li Yu , Zhang Rencheng , Yang Kai , Qi Yufan
Published: February 2024

The magnetohydrodynamics (MHD) model of the alternating current (AC) arc is complex, so a simplified equivalent heat source (EHS) model can be used to replace the complex model in studying the AC arc’s thermal characteristics and cable fire risk. A 2D axisymmetric AC arc MHD simulation model in the short gap of a copper-core cable is established in this paper. The AC arc voltage and current obtained by the model are consistent with experiments. The AC arc’s heat source distribution obtained by the MHD model is fitted to obtain the heat source function Q of the AC arc. Q is divided into 16 independent segmented heat sources, and a correction matrix is constructed to optimize the segmented heat sources. A neural network and a genetic algorithm give the prediction model and the optimal correction matrix of the segmented heat source. The EHS model optimized by the optimal correction matrix can obtain a minimum temperature error of 5.8/4.4/4.2% with the MHD model in different AC arc peak currents 2/4/6 A. The probability of a cable fire is calculated by using AC arc’s optimized EHS model when different numbers of AC arcs are generated randomly in AC half-waves. The EHS model can replace the complex MHD model to study the thermal characteristics of AC arcs and quickly calculate the probability of a cable fire caused by random AC arcs.
Fourier Ptychographic Neural Network Combined with Zernike Aberration Recovery and Wirtinger Flow Optimization
Authors: Wang Xiaoli , Lin Zechuan , Wang Yan , Li Jie , Wang Xinbo , Wang Hao
Published: February 2024

Fourier ptychographic microscopy, as a computational imaging method, can reconstruct high-resolution images but suffers optical aberration, which affects its imaging quality. For this reason, this paper proposes a network model for simulating the forward imaging process in the Tensorflow framework using samples and coherent transfer functions as the input. The proposed model improves the introduced Wirtinger flow algorithm, retains the central idea, simplifies the calculation process, and optimizes the update through back propagation. In addition, Zernike polynomials are used to accurately estimate aberration. The simulation and experimental results show that this method can effectively improve the accuracy of aberration correction, maintain good correction performance under complex scenes, and reduce the influence of optical aberration on imaging quality.
Hash Encoding and Brightness Correction in 3D Industrial and Environmental Reconstruction of Tidal Flat Neural Radiation
Authors: Ge Huilin , Wang Biao , Zhu Zhiyu , Zhu Jin , Zhou Nan
Published: February 2024

We present an innovative approach to mitigating brightness variations in the unmanned aerial vehicle (UAV)-based 3D reconstruction of tidal flat environments, emphasizing industrial applications. Our work focuses on enhancing the accuracy and efficiency of neural radiance fields (NeRF) for 3D scene synthesis. We introduce a novel luminance correction technique to address challenging illumination conditions, employing a convolutional neural network (CNN) for image enhancement in cases of overexposure and underexposure. Additionally, we propose a hash encoding method to optimize the spatial position encoding efficiency of NeRF. The efficacy of our method is validated using diverse datasets, including a custom tidal flat dataset and the Mip-NeRF 360 dataset, demonstrating superior performance across various lighting scenarios.
An Effective GNSS/PDR Fusion Positioning Algorithm on Smartphones for Challenging Scenarios
Authors: Zhang Jingkui , Yu Baoguo , Ge Yuxiang , Gao Jingxiang , Sheng Chuanzhen
Published: February 2024

The location-based smartphone service brings new development opportunities for seamless indoor/outdoor positioning. However, in complex scenarios such as cities, tunnels, overpasses, forests, etc., using only GNSS on smartphones cannot provide stable and reliable positioning results. Usually, additional sensors are needed to assist GNSS. This paper investigates the GNSS positioning algorithm assisted by pedestrian dead reckoning (PDR) in complex scenarios. First, we introduce a step detection algorithm based on the peak–valley of acceleration modulus, and the Weinberg model and the Mahony algorithm in PDR are used to estimate step length and heading. On this basis, we evaluated the performance of GNSS/PDR fusion positioning in an open scenario, a semiopen scenario, and a blocked scenario, respectively. Finally, we develop a GNSS/PDR real-time positioning software, called China University of Mining and Technology-POSitioning (CUMT-POS) version 1.0, on the Android 10 platform. By comparing GNSS solutions, PDR solutions, GNSS/PDR solutions, and real-time kinematic (RTK) solutions, we verify the potential auxiliary ability of PDR for GNSS positioning in complex environments, proving that multisource sensor fusion positioning significantly improves reliability and stability. Our research can help the realization of urban informatization and smart cities.
Immunochromatographic Detection of Human Blood: A Forensic Review
Authors: Cuttaia Calogero , Di Stefano Barbara , Sorçaburu Ciglieri Solange , Vetrini Raffaella , Previderè Carlo , Fattorini Paolo
Published: February 2024

Body fluid identification is fundamental in forensic science as it links a specific biological source to a genetic profile, thus providing critical clues for crime scene reconstruction. Blood is one of the most common body fluids found on the crime scene, and several strategies have been developed for its identification in recent decades. Usually, after a preliminary (or presumptive) test to determine the presence of blood (both human and non-human), a confirmatory test is needed to prove that the sample is human blood. Out of the confirmatory tests, immunochromatographic (IC) assays are the most commonly and widely used. This work gives a review of the use of commercial kits specifically developed to detect human hemoglobin or glycophorin A (a surface protein of human red cells) in forensics. Claimed sensitivity varies broadly (ranging from 0.06 to 75 nanoliters of fresh blood), but different values (as low as 0.002 nL) were found during validation procedures. Specificities are high, and the possibility of cross-reaction (with the risk of false-positive results) is so low that it can be considered negligible. False-negative results, however, can be found due to the so-called “hook effect” as well as to the target degradation/modification, which interferes with the Ag-Ab binding. In addition, the chemical compositions of the presumptive test, detergents, and washing can also promote false negative outcomes in peculiar situations. Although IC assays are rapid, inexpensive, specific, and easy to use even on the crime scene, their major limitation is represented by the destructive approach required by this kind of confirmatory test. Since the final goal of the forensic investigation is the genetic typing of a bloodstain, we will describe the strategies developed for IC assays of faint stains as well as the strategies adopted to ensure that exactly the same sample undergoes human blood identification and DNA typing.
Gender Analysis of Stress and Smoking Behavior: A Survey of Young Adults in Japan
Authors: Yokoyama Ayuka , Iwata Yuka , Oe Nanami , Tadaka Etsuko
Published: February 2024

The global tobacco epidemic, claiming over 8 million lives annually, constitutes a formidable public health threat. Fatalities arise from both direct tobacco use and exposure to second-hand smoke. Smoking prevalence, notably in Japan, varies across age groups with distinct patterns indicating higher rates among those aged 40 years and above. Persistent concerns surround the significance of smoking behavior in individuals aged 20 to 30 years, given the potential for early adulthood behavior to contribute to long-term health impacts. The emergence of heated tobacco products adds complexity with a substantial percentage of individuals aged 20 to 30 years using these alternatives. This study analyzed data from 15,333 individuals aged 20 to 39 years, collected through Japan’s “Comprehensive Survey of Living Conditions 2017”. Compliant with the Japan Statistics Act, a secondary analysis employed multivariate logistic analysis to examine concerns and stress sources by sex and smoking behavior, adjusting for various variables. As a result, no statistically significant associations were found between smoking in men and concerns or stress. However, in women who smoked, significant associations were observed between smoking and specific stressors, such as work-related concerns, financial stress, and stress from a lack of personal free time. This study emphasizes the necessity of considering gender differences and social backgrounds in designing targeted smoking-prevention programs, aiming to enhance overall health longevity and comprehensively reduce lifelong smoking rates in this demographic.
University Students’ Conceptualisation of AI Literacy: Theory and Empirical Evidence
Authors: Černý Michal
Published: February 2024

This research endeavours to systematically investigate the multifaceted domain of AI literacy, given the pervasive impact of artificial intelligence on diverse facets of contemporary human existence. The inquiry is motivated by a fundamental question posed to educators: how best to cultivate AI literacies and competencies and how these proficiencies are structured and influenced. Employing a rigorous two-part methodology, the initial phase scrutinises 28 studies from the SCOPUS database, unveiling five distinct discourses germane to AI literacy. Subsequently, the second phase involves the administration of questionnaires to 73 students, whose responses undergo thematic analysis to discern patterns within the four domains delineated by Ng et al. The ensuing discourse underscores a pivotal revelation: despite formal adherence to established discourses, the conceptualisation of AI literacy necessitates a departure from conventional perspectives. Ethical principles, elucidated by students, emerge not merely as individual components but as integral facets of a broader societal literacy profile, thereby advocating a paradigm shift towards social reflection. This novel insight prompts a critical re-evaluation of AI literacy’s prevailing assumptions and conceptual frameworks, urging a transition towards models grounded in ecological or network dynamic interactionist principles.
Educational Technology Procurement at Canadian Colleges and Universities: An Environmental Scan
Authors: Ali Hannah , Prompiengchai Sapolnach , Joordens Steve
Published: February 2024

There has been an increase in the use of education technology (EdTech) within post-secondary institutions, which has resulted in an unprecedented overflow of EdTech in the market. Institutions then make decisions on which EdTech to procure. This procurement process occurs on a continuum, where on one extreme, an institution takes a decentralized (bottom–up) approach where individuals within an institution independently decide on EdTech procurement, or a centralized (top–down) approach where the institution decides on criteria and standards that the EdTech must meet. This study administered a questionnaire and conducted structured interviews to explore how important standards are, and to identify the associated challenges with implementing centralized procurement. It was distributed to individuals involved in EdTech procurement at universities and colleges across Canada. The results showed that standards related to Privacy and Security, Accessibility, and Care of Data Practices play a larger role in EdTech procurement within most institutions. The use of standards is increasing as institutions become more centralized; however, they are not yet relied on in a structured way. This study suggests ways to move towards a procurement process that incorporates standards and addresses many of the identified challenges with procuring EdTech, thus, improving the efficiency and efficacy of EdTech procurement.
Age-Inclusive Healthcare Sustainability: Romania’s Regulatory and Initiatives Landscape in the European Union Context
Authors: Rotaru Flaviana , Matei Andreea , Bolboacă Sorana D. , Cordoș Ariana Anamaria , Bulboacă Adriana Elena , Muntean Călin
Published: February 2024

Sustainable healthcare is “healthcare that is economical and has a positive impact on society”. Considering the definition of sustainable healthcare and the increase in life expectancy, the healthcare system is expected to face an increase in presentations addressed to healthcare facilities of older persons with multiple chronic diseases. Age-friendly environments support active living of older persons and healthcare support in their home. Our goal was to assess how the regulatory landscape undertaken in Romania and the ongoing research project initiatives with Romanian partners reflect the concept of age-friendly environments. Romania had a poor overall active aging index (rank 26/28) and a decrease in life expectancy by 1.4 years in 2020, with a high gender gap of 8 years in favor of women. Key findings highlight the integration of EU principles into Romania’s policies, which emphasize inclusivity, non-discrimination, and active aging. Romania’s involvement in European collaborative initiatives is primarily through private associations, lacking representation from governmental structures. National focus in Romania has been on social services for the elderly. The partners in ongoing research projects range from enterprises to universities and research institutes. The majority of ongoing research focuses on assistive technology solutions. The findings underscore the importance of national, regional, and local attention to the environmental and societal aspects of age-friendly initiatives, alongside promoting technology acceptance and adoption.
Assessment of the Potential of Sunflower Grown in Metal-Contaminated Soils for Production of Biofuels
Authors: Marques Ana P. G. C. , Paulo Ana , Caetano Nídia S.
Published: February 2024

Environmental biotechnology needs solutions that are associated with a low budget and cleaner remediation, and which are connected to resources and energetic valorization, to be able to encourage a circular bioeconomy. A prospective resolution for heavy-metal-contaminated soils is the application of phytoremediation approaches merged with bioenergy generation using the resulting biomass. Sunflower (Helianthus annuus) has been studied as a feedstock for biodiesel generation, and appears to be very attractive for biogas and bioethanol production. The current study reports an innovative energetic valorization approach of H. annuus biomass derived from the application of a phytoremediation strategy devised to remove Zn and Cd from an industrially contaminated soil (599 mg Zn kg−1 and 1.2 mg Cd kg−1)—and its comparison to the analysis of the same energetic valorization pathway for sunflower plants growing in an agricultural non-contaminated soil. After plant harvesting, bioethanol was produced from the aboveground tissues, and applied in the transesterification of the oil obtained through seed extraction for the generation of biodiesel. Also, biogas production was assessed through the root’s biomass anaerobic digestion. Similar yields of oil extraction—0.32 and 0.28 mL g−1 DW—were obtained when using seeds from H. annuus cultured in contaminated and non-contaminated soils, respectively. The production yield of bioethanol was superior using biomass from the agricultural non-contaminated soil (0.29 mL g−1 DW) when compared to the industrial metal-contaminated soil (0.20 mL g−1 DW). Zinc was measured in minor levels in bioethanol and oil (ca. 1.1 and 1.8 mg mL−1, correspondingly) resulting from the biomass cultivated in the industrialized soil, whereas Cd was not detected. The production yield of biogas was superior when using root biomass from H. annuus cultivated in agricultural non-contaminated soil (VS max. ca. 104 mL g−1) when compared to the one deriving from the industrial contaminated soil (VS max ca. 85 mL g−1). Generally, results demonstrate that substantial production yields of the tested biofuels were attained from biomass resulting from phytoremediation, corroborating this integrated original approach as a valuable alternative for the phytoremediation of HM-polluted soils and as an important strategy for plant biomass valorization.
Analysis on Using 3D Scanning and BIM to Reduce the Physical and Non-Physical Construction Waste for Sustainable Fireproofing of Steel Trusses
Authors: Savu Cristian , Pescaru Adrian-Horatiu , Zsak Ivett-Greta , Durgheu Anca-Maria , Frent Alexandra-Paula , Suba Norbert-Szabolcs , Buda Aurelian Stelian , Nistor Sorin
Published: February 2024

Embracing the archaic methods used in supervision and/or management in the field of architecture, engineering, and construction (AEC) creates the imperative need to adopt and/or develop sustainable methods to reduce construction physical waste, as well as the non-physical waste. Thus, the articles present a method that convenes three different specializations, namely geodesy, civil engineering, and architecture, that make use of the 3D terrestrial laser scanner (TLS), 3D reconstruction, and the 3D analysis to make an accurate bill of quantity (BOQ) to be able to assess the quality of the construction in compliance with the idea of sustainable development in the AEC industry. This article describes the three major parts: obtaining the point cloud, the 3D modeling, and extracting the relevant data. The novelty of the research is threefold: (i) a viable methodology for obtaining an accurate BOQ by reducing the non-physical waste to avoid cost and time overruns; (ii) the significance and impact of a (a) strictly automated and (b) automatic with traditional survey to obtain the 3D model of the point cloud on the resulting area that requires rehabilitation or to be covered with intumescent paint; and (iii) a detailed analysis of the specific elements that can blunder the final 3D model, such as the shadowing effect that can appear in very complex construction structures. Moreover, the proposed methodology represents a significant advancement in optimizing 3D modeling to improve the comprehension of steel trusses in the field of AEC sector.
The Efficiency of Economic Growth for Sustainable Development—A Grey System Theory Approach in the Eurozone and Other European Countries
Authors: Nowak Marcin , Kokocińska Małgorzata
Published: February 2024

This article builds upon the authors’ previous work on the Synthetic Efficiency Indicator for Economic Growth (SEI-EG), demonstrating the process of transforming economic-growth-related inputs into sustainable development outcomes. This innovative application of the SEI-EG provides a fresh perspective on the effects of eurozone membership on the sustainability efficiency of EU countries, thereby enriching the discourse on economic integration and sustainability efforts within the European Union. By integrating the economic dynamics of the euro area with environmental efficiency metrics, this study offers novel insights into the potential influence of currency union membership on achieving sustainable development goals. Covering the entire European Union, categorized by euro area and non-euro area membership, this study navigates through the risks to sustainability posed by global crises and the ongoing debate over the euro’s integration success and setbacks. Conducted from 2019 to 2021 using grey system theory, this research incorporates a revised set of seven indicators in the domain of industry, innovation, and infrastructure as recommended by the Europe 2020 project. The findings confirm the initial hypothesis that countries outside the euro area tend to exhibit higher efficiency as measured by the SEI-EG indicator. This article is composed of five parts. The first two parts present characteristic features of economies in the euro area and non-euro area, along with a critical trend in the latest literature on the benefits and risks of economic integration. The subsequent sections introduce the methodology for determining the indicator and the authors’ own corrections to it as well as the results of the research and a discussion.