bluuebunny/crossref_metadata_2025_split huggingface dataset:
The MAGPI survey: The interdependence of the mass, star formation rate, and metallicity in galaxies at z ∼ 0.3
Authors: Koller M. , Ziegler B. , Ciocan B. I. , Thater S. , Mendel J. T. , Wisnioski E. , Battisti A. J. , Harborne K. E. , Foster C. , Lagos C. , Croom S. M. , Grasha K. , Papaderos P. , Remus R. S. , Sharma G. , Sweet S. M. , Valenzuela L. M. , van de Ven G. , Zafar T. 
Published: July 2024

Aims. Star formation rates (SFRs), gas-phase metallicities, and stellar masses are crucial for studying galaxy evolution. The different relations resulting from these properties give insights into the complex interplay of gas inside galaxies and their evolutionary trajectory and current characteristics. We aim to characterize these relations at z ∼ 0.3, corresponding to a 3–4 Gyr lookback time, to gather insight into the galaxies’ redshift evolution.
Methods. We utilized optical integral field spectroscopy data from 65 emission-line galaxies from the MUSE large program MAGPI at a redshift of 0.28 < z < 0.35 (average redshift of z ∼ 0.3) and spanning a total stellar mass range of 8.2 < log(M*/M⊙) < 11.4. We measured emission line fluxes and stellar masses, allowing us to determine spatially resolved SFRs, gas-phase metallicities, and stellar mass surface densities. We derived the resolved star formation main sequence (rSFMS), resolved mass metallicity relation (rMZR), and resolved fundamental metallicity relation (rFMR) at z ∼ 0.3, and compared them to results for the local Universe.
Results. We find a relatively shallow rSFMS slope of ∼0.425 ± 0.014 compared to the expected slope at this redshift for an ordinary least square (OLS) fitting routine. For an orthogonal distance regression (ODR) routine, a much steeper slope of ∼1.162 ± 0.022 is measured. We confirm the existence of an rMZR at z ∼ 0.3 with an average metallicity located ∼0.03 dex above the local Universe’s metallicity. Via partial correlation coefficients, evidence is found that the local metallicity is predominantly determined by the stellar mass surface density and has a weak secondary (inverse) dependence on the SFR surface density ΣSFR. Additionally, a significant dependence of the local metallicity on the total stellar mass M* is found. Furthermore, we find that the stellar mass surface density Σ* and M* have a significant influence in determining the strength with which ΣSFR correlates with the local metallicity. We observe that at lower stellar masses, there is a tighter correlation between ΣSFR and the gas-phase metallicity, resulting in a more pronounced rFMR.
Cloud structure and young star distribution in the Dragonfish complex
Authors: Sanchez Nestor , Nespoli Elisa , Gonzalez Marta , Climent Juan B. 
Published: July 2024

Context.Star formation is a complex process involving several physical mechanisms that interact with each other at different spatial scales. One way to shed some light on this process is to analyse the relation between the spatial distributions of gas and newly formed stars. In order to obtain robust results, it is necessary for this comparison to be made using quantitative and consistent descriptors that are applied to the same star-forming region.Aims.We used fractal analysis to characterise and compare in a self-consistent way the structure of the cloud and the distribution of young stellar objects (YSO) in the Dragonfish star-forming complex.Methods.Different emission maps of the Dragonfish nebula were retrieved from the NASA/IPAC Infrared Science and thePlanckLegacy archives. Moreover, we used photometric information from the AllWISE catalogue to select a total of 1082 YSOs in the region. We derived the physical properties for some of these from their spectral energy distributions (SEDs). For the cloud images and YSOs, the three-dimensional fractal dimension (Df) was calculated using previously developed and calibrated algorithms.Results.The fractal dimension of the Dragonfish nebula (Df= 2.6–2.7) agrees very well with values previously obtained for the Orion, Ophiuchus, and Perseus clouds. On the other hand, YSOs exhibit a significantly lower value on average (Df= 1.9–2.0), which indicates that their structure is far more clumpy than the material from which they formed. Younger Class I and Class II sources have lower values (Df= 1.7 ± 0.1) than more evolved transition disk objects (Df= 2.2 ± 0.1), which shows a certain evolutionary effect according to which an initially clumpy structure tends to gradually disappear over time.Conclusions.The structure of the Dragonfish complex is similar to that of other molecular clouds in the Galaxy. However, we found clear and direct evidence that the clustering degree of the newly born stars is significantly higher than that of the parent cloud from which they formed. The physical mechanism behind this behaviour is still not clear.
Classements accommodants. Façonner des listes pour gérer les molécules problématiques
Authors: Boullier Henri , Bertholon Karine 
Published: July 2024

Les inventaires et les listes sont un outil de gouvernement extrêmement répandu, mais dont les enjeux et les processus d’élaboration sont globalement méconnus. Ces artéfacts en apparence neutres et apolitiques, souvent décrits comme des « choses ennuyeuses », constituent en réalité des entrées particulièrement riches pour analyser les rapports de force dans la mise en œuvre de politiques sanitaires et environnementales. Nous nous intéressons ici à deux systèmes de classement : la liste des « substances soumises à autorisation » créée dans le cadre du règlement européen REACH, qui regroupe des substances toxiques destinées à être retirées du marché, et la catégorisation des antibiotiques vétérinaires de l’Agence européenne des médicaments, qui vise à préserver des molécules indispensables en médecine humaine. Des dispositions dérogatoires, des non-dits et des angles morts permettent à ces listes d’afficher un objectif de changement tout en ménageant les activités des industries et des professionnels de ces secteurs. Ce faisant, elles font preuve d’une certaine souplesse : elles soulignent l’urgence d’agir en régulant certains usages problématiques mais évitent de prononcer des interdictions fermes.
The Precision of All-on-Four Implant Position Recorded from Three Different CBCT Machines
Authors: Alsulimani Osamah , Alhaddad Abdulrahman , Altassan Mosa , Bukhari Asmaa , Munshi Lulu , Sabir Ghalia 
Published: July 2024

Abstract
Objective To investigate the dimensional discrepancy and degree of deviation of All-on-Four implant position between different cone-beam computed tomography (CBCT) machines.
Materials and Methods Four implants (4.5 × 10 mm Superline II, Dentium, South Korea) were placed in an All-on-Four style in an artificial mandible. The jaw was radiated 30 times using three different CBCT machines (Rainbow CT, Dentium; Veraview X800, Morita, Japan; Planmeca Viso G3, Planmeca OY, Finland). A total of 30 Digital Imaging and Communications in Medicine (DICOM) files were exported, n = 10. All-on-Four implants from each DICOM file were segmented and exported as an STL file (three-dimensional image) using Blue Sky Plan software (version 4.12.13/Blue Sky Bio, United States). All-on-Four implant zone dimensions (X, Y, and Z axes) and the total degree of deviation between All-on-Four implants per CBCT machine were measured using Autodesk Meshmixer software (version 3.5.474/California, United States). The data distribution's normality and variances' equality were tested with Shapiro–Wilk's and Levene's tests, respectively (p-value < 0.05). Data were analyzed using Brown–Forsythe one-way analysis of variance and Tamhane's post hoc tests to compare the differences between the groups (p-value <0.05).
Results The respective X, Y, and Z mean dimensions of the All-on-Four implant zone were: Dentium (34.95, 14.71, and 9.97); Morita (34.88, 14.74, and 10.56); and Planmeca (34.73, 15.15, and 12.33). Significant differences between CBCT machines were found in all axes (p-value < 0.05); however, the Z-axis had the most differences. Notably, Planmeca exhibited the highest standard deviation (SD) in all axes (0.16–0.35), exhibiting the lowest consistency in the CBCT machines' readings. The Dentium exhibited the lowest deviation in the implant position, with the lowest SD (0.61). A significant difference in the total degree of deviation was spotted when only Morita was included in the comparison (p-value < 0.05).
Conclusion This study's findings are of significant importance as they reveal that the implant position recorded from the CBCT machines was most discrepant in the buccolingual dimension (Z-axis). Planmeca exhibited the least implant-dimensional accuracy of the CBCT machines, while Dentium exhibited the highest implant position accuracy. These results could significantly impact the choice of CBCT machine for implant placement, especially since an accurate CBCT image is crucial for digital implant planning.
Enhanced dielectric response and non-Ohmic properties of Cd-doped Na1/3Ca1/3Bi1/3Cu3Ti4O12 ceramics
Authors: Xue Renzhong , Liu Xiaosong , Zhao Liuyang , Zhu Xiang 
Published: July 2024

Abstract
In this study, Na1/3(Ca1−xCdx)1/3Bi1/3Cu3Ti4O12 (x = 0, 0.2, 0.4, 0.8, and 1.0) ceramics were prepared via solid-state method. Effects of substitution of Ca2+ with Cd2+ on the microstructure, dielectric response, and non-Ohmic properties of Na1/3Ca1/3Bi1/3Cu3Ti4O12 ceramics were studied systematically. Results showed that all samples possessed single perovskite phase, in which grain size increased with the increase in Cd2+ doping content. Energy band gaps and activation energy first increased and then decreased, achieving their maxima (4.22 and 0.642 eV, respectively) at x = 0.2. Besides, dielectric constant of doped samples increased with the decrease in dielectric loss in frequency range of 40–106 Hz. Moreover, improvement in non-Ohmic properties was also observed with Cd2+ doping. The optimal dielectric properties (dielectric constant of ∼12,500, dielectric loss of ∼0.032 at 10 kHz, nonlinear coefficient of ∼3.42, and breakdown strength of ∼2.7 kV·cm−1) were achieved at x = 0.2. Dielectric response mechanism of ceramics followed internal barrier layer capacitor model while nonlinear ohmic properties were derived from Schottky barrier structure. Dielectric relaxation peaks at high temperatures (120 °C–220 °C) were associated with grain boundaries. Therefore, partial substitution of Ca2+ with Cd2+ can improve simultaneously dielectric and non-Ohmic properties of Na1/3Ca1/3Bi1/3Cu3Ti4O12 ceramics, which is conducive to their application in high-energy-density storage capacitors and varistors.
Sudden change of the geometric quantum discord and quantum coherence in dissipative superconducting circuit systems with the time-dependent electromagnetic field
Authors: Xiong Zi-Yu , Xiao Yong-Jun , Zhang Ye-Qi , He Qi-Liang 
Published: July 2024

Abstract
We investigate the influence of a time-dependent electromagnetic field (TDEF) on the double sudden change of the 1-norm geometric quantum discord (GQD) and sudden change of quantum coherence for superconducting circuit systems under spontaneous emission, where two superconducting qubits are each coupled to their own LC circuit or uniformly coupled to a common LC circuit, respectively. It is shown that the double sudden change of the GQD can be controlled, and the frozen time during which the GQD keeps nearly constant can be lengthened by applying the TDEF. Furthermore, we also find that the TDEF can delay the ‘critical point’ of sudden change for quantum coherence and slow down the decay of quantum coherence. Finally, we explore how the TDEF affects the superconducting circuits system’s information flow by using trace distance and the optimal control scheme is sought by comparing the two coupled modes.
Exploring the impact of weak measurements on exciton–exciton interactions
Authors: Siyouri Fatima-Zahra , Giraud Olivier , Hassouni Yassine 
Published: July 2024

Abstract
In our study of super quantum discord between two excitonic qubits inside a coupled semiconductor quantum dots system, our primary focus is to uncover the impact of weak measurement on its quantum characteristics. To achieve this, we analyze how varying the measurement strength x, affects this super quantum correlation in the presence of thermal effects. Additionally, we assess the effect of this variation on the system’s evolution against its associated quantum parameters; external electric fields, exciton–exciton dipole interaction energy and Förster interaction. Our findings indicate that adjusting x to smaller values effectively enhances the super quantum correlation, making weak measurements act as a catalyst. This adjustment ensures its robustness against thermal effects while preserving the non-classical attributes of the system. Furthermore, our study unveils that the effect of weak measurements on this latter surpasses the quantum effects associated with the system. Indeed, manipulating the parameter x allows the weak measurement to function as a versatile tool for modulating quantum characteristics and controlling exciton–exciton interactions within the coupled semiconductor quantum dots system.
The effect of NaOH and KOH on the strength-mechanical properties of alkali-activated composites based on granulated blast-furnace slag
Authors: Gandel R , Jeřábek J , Marcalíková Z , Ćmiel P 
Published: July 2024

Abstract
Alkali-activated systems are a more sustainable alternative to Portland cement concrete. The activation of latently hydraulic and pozzolanic raw materials in these composites is one of the many investigated factors, where the price ratio and the ability to optimally activate the mentioned precursors with the given activator play a major role. The subject of the presented work is a comparison of the influence of NaOH and KOH on the development of the strength-mechanical properties of alkali-activated materials based on granulated blast furnace slag - the secondary raw material of metallurgical processes.
Using shredded fibre cement recyclate to produce new innovative fibre cement boards
Authors: Khongová I , Frank M , Krejčí Kotlánová M , Šimbera T 
Published: July 2024

Abstract
The study investigated the effect of the addition of crushed recyclate on the final properties of fibre cement boards. In some fibre cement board production technologies, waste in the form of solid trimmings accounts for up to 7% of total production, which is not an insignificant amount. The research aims to maximise the use of the waste generated and its effective reintegration into the production of new fibre cement boards. In the experimental work, shredded recyclate was used in varying quantities to replace expanded perlite. The results obtained show that the reuse of shredded recyclate has a minimal impact on the observed physical and mechanical properties. A similar trend was found when evaluating the durability tests. The proposed solution for the reuse of recyclate can be considered successful both in terms of production technology and the properties of the fibre cement boards achieved.
Experimental verification of the effect of lithium silicate surface treatment on concrete durability
Authors: Fládr J , Bílý P 
Published: July 2024

Abstract
This paper presents the results of a research focused on the behaviour of lithium silicate sealer as an additional protection of concrete structures against environmental degradation effects. The results are compared with the behaviour of siloxane sealer – an agent commonly used for the protection of concrete structures against environmental effects in practice. The paper presents the results of several tests: contact angle, porosity change and carbonation depth that was determined by accelerated test method. All the mentioned tests lead to a conclusion that siloxane sealer is significantly more efficient in increasing the durability of structures than lithium silicate sealer.
Impact of water content and salts on the mechanical properties of masonry materials used in historic structures
Authors: Náhunková P , Nunes C , Slížková Z , Frankeová A D 
Published: July 2024

Abstract
The protection of built cultural heritage is increasingly important due to climate change. Given that flooding is one of the most serious threats to the conservation of heritage objects, the goal of this study was to evaluate the effect of water and soluble salts on the mechanical strength of materials commonly used in old structures. An experimental analysis was conducted by wetting several types of conventional building materials (such as stone, lime mortar, and fired-clay brick), each characterised by distinct mechanical properties and porous structure. The impact of contamination with three types of soluble salts commonly found in historic buildings was also assessed. The results showed that the level of water saturation can have a significant effect on the mechanical properties of all the tested materials. In some cases, the sample heterogeneity surpassed the effect of water content on the mechanical behaviour. Brick and stone samples showed a similar trend in the strength behaviour. Brick had a flexural strength decrease of around 15% after 7 days of submersion in water and also after storage in an environment with high relative humidity. Mortar mixtures were more sensitive to the effect of water and salt solutions compared to stone and bricks. One-cycle of salt contamination followed by drying increased the mechanical strength of the tested materials.
Recent advancement and trends in the development of membranes having bactericidal attributes via direct ink writing
Authors: Lanke Himanshu , Patadiya Jigar , Banerjee Barnali , Kandasubramanian Balasubramanian 
Published: July 2024

Abstract
The necessity for orthopedic prostheses, implants, and membranes to treat diseases, trauma, and other disasters has increased as the risk of survive through various factors has intensified exponentially. Considering exponential growth in demand, it has been observed that the traditional technology of grafts and membranes lags to fulfill the demand and effectiveness simultaneously. These challenges in traditional methodologies prompted a revolutionary shift in the biomedical industry when additive manufacturing (AM) emerged as an alternative fabrication technique for medical equipments such as prostheses, implants, and membranes. However these techniques were fast and precise the major attributes of the biomedical materials were the processability, bactericidal nature, biocompatibility, biodegradability, and nontoxicity together with good mechanical properties. Major challenges faced by researchers in the present-day scenario regarding materials are the lack of bactericidal attributes in tailored material, though having better mechanical as well as biocompatible properties, which, on the other hand, are primary critical factors too, in the healthcare sector. Hence considering the advantages of AM and need for membranes with bacteriacidal attributes this present review will highlight the studies based on the manufacturing of membranes with bacteria-resistant properties majorly using direct ink writing and some AM techniques and the reasoning behind the antibacterial attributes of those composite materials.
Fire is associated with forest degradation and economic land concessions, but not land conversion in the rapidly transforming Cambodian landscape
Authors: Webb Edward L , Jamaludin Johanness 
Published: July 2024

Abstract
Cambodia is beset by high deforestation rates and fire frequencies. From 2001 to 2020, forest cover declined by 34%, and cropland and rubber expanded by 31 401 km2 and 4530 km2, respectively; meanwhile nearly 8.7 million fires burned 41.6% of the land. Fires may be associated with deliberate land change, stable land management systems, and unplanned forest degradation. We integrated annual land cover and monthly burned area data from 2001–2020 to test three hypotheses. First, if fire is used during land conversion, there would be a detectable pulse in fire activity in the year immediately prior to, and the year of land cover change. Our temporal analysis found statistically elevated burn rates in five of 16 transition tests, however, they were typically <1% outside the predicted range, indicating no practical significance in the association of fire with land cover change. Second, fire prevalence would be lower in land managed for conservation or agricultural production than unclassified or unmanaged land. Persistent forest and shrubland burned at significantly higher rates than expected, cropland burned significantly less, burning was almost absent from rubber plantations, and forests in protected areas exhibited lower total burn percentages than unclassified land or industrial economic land concessions (ELCs), thus supporting the fire-land management hypothesis. However, percent burned area in ELCs was greater than unclassified land for several persistent land cover classes, suggesting that local landowners may prevent fire in commercially valuable private agricultural land, but there may be no such prevention measures in industrial ELCs. Anti-fire policy enforcement in ELCs should be enhanced. Third, forests that converted into (degraded) shrublands would experience increasing fire frequency in the years leading up to transition, a hypothesis we found strong support for through our temporal analysis. Cambodia’s 2013 Law on Fire Prevention and Fire Fighting deputizes the public to enforce its provision, however given that the vast majority of fires occur in persistent forest in state-owned land, collective action problems are likely to hinder its effective implementation.
Translating strain to stress: a single-layer Bi-LSTM approach to predicting stress-strain curves in alloys during hot deformation
Authors: Xu Sheng , Xiong Jie , Zhang Tong-Yi 
Published: July 2024

Abstract
This study introduces a novel deep learning network that integrates a single-layer bidirectional long short-term memory (Bi-LSTM) network with a coding layer to analyze the hot deformation behavior of various alloys. The single-layer Bi-LSTM model adeptly predicts experimental stress–strain curves obtained under different deformation temperatures and strain rates, demonstrating superior effectiveness and excellent performance in modeling hot deformation behaviors of the FGH98 nickel-based alloy and TiAl intermetallic alloy. The present model achieves the coefficient of determination of 0.9051 for FGH98 and 0.9307 for TiAl alloys, whereas the corresponding values of 0.8105 and 0.8356 are obtained by the conventional strain-compensated Sellars constitutive equation (SCS model). Additionally, the mean absolute percentage error of the single-layer Bi-LSTM model are 11.37% for FGH98 and 7.16% for TiAl alloys, while the SCS model gains the corresponding error of 15.29% and 17.01%. These results show that the present model has enhances the predictive accuracy exceeding 10% for both FGH98 and TiAl alloys over the SCS model. Consequently, the proposed single-layer Bi-LSTM model provides substantial potential for optimizing manufacturing processes and improving material properties.