bluuebunny/crossref_metadata_2025_split huggingface dataset:
Impact of Various Creep–Fatigue Interaction Loading Waveforms at 873 K on the Subgrains and M23C6 Carbides Interrelations and Stability in P91 Steel Weld Joints
Authors: Vaishali P. , Shankar Vani 
Published: February 2025

Abstract
P91 steel and its weld joint (WJ) have been selected for the present study with the goal, to investigate the combined effects of fatigue and creep loadings [known as creep–fatigue interaction (CFI)] on the microstructures of the five constituting zones of actual P91 steel WJ when it is subjected to various types of CFI loading waveforms. Experiments were conducted at constant strain rate (3 × 10−3 s−1), temperature (873 K), and total strain amplitude (± 0.6 pct); the CFI loadings comprised of unsymmetrical loadings (short or long tensile/compressive holds) and symmetrical loadings (tensile plus compressive holds/pure fatigue). The hierarchical boundaries within the prior austenite grains and M23C6 carbides at the boundaries are investigated. Under CFI loading, the interrelations between the stabilities of M23C6 carbides at the hierarchical boundaries and the subgrains were found to be dependent upon the microstructural zone of the WJ in consideration, symmetricity/asymmetricity of the applied waveform and the extents of creep/fatigue contributions in the CFI waveform cycles. The subgrains of soft regions (intercritical and fine grain) and base metal were at stake under larger fatigue contributions, whereas the subgrains of hard regions (coarse grain and weld metal) were unaffected by the CFI loadings.
Effects of Cu Layer on the Deformation and Fracture Behavior of Martensitic Steel Layer in the Multilayered Sheet
Authors: Kato Ryusei , Koga Norimitsu , Watanabe Chihiro 
Published: February 2025

Abstract
Martensitic (α′) steel/Cu multilayered sheets with a volume fraction of 80 pct α′ steel were tempered, and the deformation and fracture behavior of these sheets were systematically investigated. The microstructural features such as prior austenite grain and block sizes in the α′ layer of the multilayered sheet were identical to those in the single-layer sheets. The multilayered sheets exhibited larger fracture elongation with a characteristically large local strain than the α′ steel single-layer sheets. Inhomogeneous strain distributions developed in all the sheets during tensile deformation, but the strain distributions of multilayered sheets were more inhomogeneous than that of α′ steel single-layer sheets. Strain bands, in which high-strain regions were continuously aligned along approximately 45 deg in the tensile direction, developed in all the sheets during deformation. Microvoids often nucleated at the intersections of strain bands, and their number density in multilayered sheets was lower than that in α′ steel single-layer sheets, resulting in a lower number density of microvoids. Therefore, it can be concluded that laminating with Cu decreased the number density of strain bands and suppressed void nucleation in the α′ steel layers, hindering the fatal fracture of the α′ steel/Cu multilayered sheets.
Designing Symbiotic Human–Robot Collaboration in assembly tasks
Authors: Barravecchia Federico , Bartolomei Mirco , Mastrogiacomo Luca , Franceschini Fiorenzo 
Published: February 2025

Abstract
The advancement of Human–Robot Collaboration (HRC) in industrial environments has underscored the importance of establishing harmonious and symbiotic relationships between human operators and robots. This study, in line with the principles of Industry 5.0, proposes an approach to support the integration of human operators’ capabilities with advanced robotics, enhancing collaborative productivity and fostering a paradigm shift towards a more interactive and beneficial human–robot symbiosis. Prior research has established the basic principles of Symbiotic Human–Robot Collaboration (SHRC) but has often neglected the critical problem of how to conduct collaborative tasks to exploit the potential of these symbiotic interactions. This paper presents a novel methodology to support the design of protocols for collaborative tasks, with the aim of promoting positive symbiotic interactions between human operators and collaborative robots. The focus is on developing tasks that integrate positive symbiotic interactions, determining task performers and optimizing the mutual benefits derived from task execution. A case study is presented to illustrate the practical application of this methodology in a real-world context.
Public engagement of underserved students with open civic data
Authors: Zapata-Cardona Lucía 
Published: February 2025

Abstract
Today, various non-governmental organizations proclaim the need for public engagement of citizens, a concept that is integrated into the notion of global citizenship. However, much of the mathematics that students find in the primary school curriculum falls short to support that need. This lack of curriculum alignment with global needs has implications for the development of communities, but they are much more severe for students from underserved populations who systematically suffer different types of exclusions that increase their social disadvantages. This study explores the traits of global citizenship that students from underserved populations exhibit as they progress through a learning experience with open civic data on a global issue (climate change). The learning experience was used as the basis for an individual interview with five participants (9–10 years old) from public schools in low-income neighborhoods of a metropolitan area in northern Colombia. Participants were offered a dataset (data) ready to use and they were asked to undertake data handling actions (data-ing) using freely available web-based software. Participants were asked “What does this dataset say?” and their verbal statements were analyzed. The main findings suggest that in data and data-ing on open civic data reflecting global issues, participants exhibited understanding, belonging and action which are traits of global citizenship. In terms of understanding, participants described the behavior of the variables, suggested informal inferences, and made associations between variables. In terms of belonging and action, participants’ statements suggested including themselves as part of the community, taking responsibility, and proposing transformative actions.
The promise of mitochondria in the treatment of glioblastoma: a brief review
Authors: Liang Zhuo , Zhao Songyun , Liu Yuankun , Cheng Chao 
Published: February 2025

Abstract
Glioblastoma (GBM) is a prevalent and refractory type of brain tumor. Over the past two decades, there have been minimal advancements in GBM therapy. The current standard treatment involves surgical excision followed by radiation and chemotherapy. Compared to other tumors, GBM is more challenging to treat due to the presence of glioma stem-like cells (GSCs) and the blood–brain barrier, resulting in an extremely low survival rate. Mitochondria play a critical role in tumor respiration, metabolism, and multiple signaling pathways involved in tumor formation, progression, and cell apoptosis. Consequently, mitochondria represent promising targets for developing novel anticancer agents, including those targeting oxidative phosphorylation, reactive oxygen species (ROS), mitochondrial transfer, and mitophagy. This review outlines the mitochondrial-related therapeutic targets in GBM, highlighting the potential of mitochondria as a target for GBM treatment.
Pointwise approximation on the Alice Roth’s Swiss cheese
Authors: Zeron Eduardo S. , Castillo Jesús Emmanuel 
Published: February 2025

Abstract
We show that the complex conjugate function

$$z\mapsto \overline{z}$$

z
↦

z
¯

cannot be pointwise approximated by holomorphic polynomials on the Alice Roth’s Swiss cheese

$$Q_R\subset \mathbb {C}$$

Q
R

⊂
C

. Moreover, under some extra hypotheses, we also show that the complex conjugate cannot be pointwise approximated either by functions holomorphic on

$$Q_R$$

Q
R

.
Effects of caffeine on the longevity and locomotion activity of the common green bottle fly, Lucilia sericata (Diptera: Calliphoridae)
Authors: Naing Shine Shane , Fujioka Haruna , Matsuura Teruhisa , Miyatake Takahisa 
Published: February 2025

Abstract
The common green bottle fly, Lucilia sericata (Meigen) (Diptera: Calliphoridae), is a promising and useful managed pollinator for greenhouse agricultural crops. The fly can pollinate at lower and higher temperatures than European honeybee. However, management of the longevity of pollinators is important for growers using greenhouses. Previous studies using other insects showed that caffeine affects insect longevity and behaviors. For instance, European honeybee live longer and have increased memory after caffeine consumption. How caffeine affects the longevity and behavior of pollinators is worth investigating because it can affect pollinator’s behavior, extend longevity, or be an insecticide against pollinators. In the present study, therefore, the longevity and locomotion of L. sericata were investigated when they were given different caffeine concentrations. First, the longevity of L. sericata with five different caffeine concentrations was compared to the control. The results showed that higher concentrations of caffeine (2%, 1%, and 0.5%) significantly decreased the life span compared to lower concentrations (0.05% and 0.01%). Second, the locomotion activities of L. sericata were examined at those two caffeine concentrations with treated and control male and female flies utilizing a Drosophila Activity Monitor (DAM). Treatment with 0.05% caffeine dramatically reduced locomotion, but treatment of 0.01% caffeine did not. We also compared lipid concentrations of flies: flies treated with 0.05% caffeine had a lower lipid concentration compared to flies treated with 0% and 0.01% caffeine. These results indicate that caffeine had negative effects on the longevity and locomotion activities of the pollinator L. sericata in laboratory conditions.
Sociodemographic Links With Mortality and Survival in the Mexican Older Adult Population: Impact of Survey Attrition in the Mexican Health and Aging Study 2001-2015
Authors: Beltrán-Sánchez Hiram , Wong Rebeca 
Published: February 2025

Abstract
Most studies on old age mortality and survival focus on high-income countries, leaving limited knowledge about these trajectories in low- and middle-income countries. We use the longest-run longitudinal study of aging in Latin America, the Mexican Health and Aging Study (MHAS), to assess mortality and survival in the Mexican older adult population. We examine the likely impact of survey attrition and missing date of death on estimates of age-specific death rates, life expectancy, and the link between sociodemographic characteristics and mortality risk among Mexican older adults. Results show attrition of less than 6% of the baseline sample in MHAS from 2001 to 2015. Being lost to follow-up (LFU) is associated with age, education, and place of residence. Age-specific death rates and life expectancy estimates in MHAS align with vital statistics suggesting minimal impact of survey attrition in these estimates at older ages. However, ignoring sample attrition produces statistically significant educational gradients in mortality among males (but not among females), but imputing attrition and/or death date deaths reverses this pattern. Thus, we recommend imputing vital status by, for example, assuming attrited respondents survived to the midpoint of their LFU interval and assessing mortality determinants, including imputed cases. We also found sizeable sex differences in life expectancy at age 50 favoring women with larger sex differences in more populous places. We conclude that MHAS reliably supports the study of older age mortality and survival in Mexico, offering a unique chance to enhance knowledge in a middle-income country in the Americas.
Design and validation of a self-perception instrument on the use of scientific knowledge in teaching practice
Authors: Guinovart-Pedescoll Montse , Palau Ramon 
Published: February 2025

Abstract
In the educational context, the transmission of scientific evidence to the classroom is essential to improve the quality of education and to develop effective research-based practices. However, in the interplay between teachers, researchers, political and educational institutions, there are a number of barriers that hinder this transmission. According to several studies, these difficulties arise from the lack of teacher training, work overload, the difficulty of accessing scientific articles, the existence of unethical behaviour and the instability of the Spanish educational system.
Approaching the teaching reality with the will to strengthen this link will allow making proposals that will have a significant impact on their teaching practices. Thus, the objective of this work is to design and validate a questionnaire that measures self-perception on the use of scientific knowledge in teaching practice. This tool, intended for future teachers and active teachers, will allow the collection of perceptions on barriers and facilitators for the implementation of scientific evidence in the classroom. Based on a quantitative research approach, the content of the questionnaire was validated by means of an expert judgment. Then, a pilot test was carried out with the participation of 278 future teachers of the Master's Degree in Teacher Training of 4 Catalan universities. Finally, an analysis of reliability and construct validity was carried out by means of an Exploratory Factor Analysis (EFA).
The result has been the validation of a tool that will allow a more detailed understanding of the phenomenon of barriers between educational scientific evidence and teachers. This will facilitate the detection of strengthening pathways between educational research and classroom practices, promoting a more effective implementation of scientific evidence that will result in a continuous, more effective and more efficient improvement of education.
A conceptual framework for designing human-centered building-occupant interactions to enhance user experience in specific-purpose buildings
Authors: Roofigari-Esfahan N. , Morshedzadeh E. 
Published: February 2025

Abstract
This research proposes a novel conceptual framework that combines the concepts of Human-Computer Interaction (HCI) and Ambient Intelligence (AmI). The proposed framework aims to shed light on the importance of considering the needs and the social interactions of various building occupants in different types of buildings and designing HBI strategies accordingly. Specifically, we take educational buildings as a case that is less explored in the HBI research and apply the proposed framework, investigating how HBI strategies and interactions should be designed to address the needs of students, as primary occupants. Focus groups and semi-structured interviews were conducted among students in a flagship smart engineering building at Virginia Tech. Qualitative coding and concept mapping were used to analyze the qualitative data and determine the impact of occupant-specific needs on the learning experience of students. “Finding study space” was found to have the highest direct impact on the learning experience of students, and “Indoor Environment Quality (IEQ)” was found to have the highest indirect impact. The results show a clear need to integrate occupant needs in designing HBI strategies in different types of buildings. Finally, we discuss new ideas for designing potential Intelligent User Interfaces (IUI) to address the identified needs.
U‐Pb Geochronology and Lu‐Hf Isotopic Characterization of the Canadian High Arctic Large Igneous Province (HALIP): Comparison to Oceanic Plateau Magmatism
Authors: Dockman D. M. , Hadlari T. , Pearson D. G. , Heaman L. M. , Sarkar C. , Dewing K. 
Published: February 2025

AbstractRecent high‐precision geochronological studies have delineated three main pulses of basaltic magmatism between ca. 130‐80 Ma in the Cretaceous High Arctic Large Igneous Province (HALIP) in northern Canada. Here we report new U‐Pb TIMS baddeleyite and zircon dates for samples from Axel Heiberg and Ellesmere Islands, which further support the duration and pulsed nature of the magmatism previously documented. We add new LA‐ICPMS U‐Pb zircon dates on samples analyzed in a previous study to help resolve age heterogeneity observed in some samples. We also report the first LA‐ICPMS zircon Lu‐Hf results from HALIP intrusives to better constrain the HALIP mantle source composition. Initial εHf zircon results for five HALIP basalts with minimal evidence for continental crustal contamination from the Canadian Arctic Islands range from +9.0 to +14.7, and indicate extraction from a depleted mantle source similar to plume‐derived oceanic plateaux such as Kerguelen.
Magnetic Characterization of Sediment Source‐To‐Sink Processes in the Bengal Fan Since 45 ka
Authors: Huang Rong , Chang Liao , Wang Shishun , Xue Pengfei , Liu Shengfa , Shi Xuefa , Khokiattiwong Somkiat , Kornkanitnan Narumol 
Published: February 2025

AbstractThe Bengal Fan is the largest submarine fan on Earth with a complex submarine channel system. Therefore, it is challenging to understand the evolution of Bengal Fan sediment source‐to‐sink processes. Here we present a synthesis of high‐resolution environmental magnetic records of five sediment cores from the central and lower Bengal Fan to reconstruct sedimentation history for the past 45 ka. Rock magnetic measurements and electron microscopic analyses reveal that detrital (titano)magnetites are the dominant magnetic minerals in the central fan sediments, while lower fan deposits exhibit enhanced magnetofossil contribution. During the last three marine isotope stages, glacial periods have increased detrital magnetic mineral concentration and grain size compared with interglacial periods. This increase is primarily attributed to the weakening of the Indian summer monsoon. Spatially, magnetic mineral concentration and grain size show decreasing trends from north to south and from east to west in the Bengal Fan, which may be modulated by submarine channel shifts. Deposition center migration driven by sea level fluctuations and sediment provenance variations were key factors controlling magnetic mineral concentration and grain size. Therefore, magnetic proxies serve as sensitive indicators of sedimentation patterns within the Bengal Fan. The spatiotemporal distribution of magnetic particles provides valuable insights into the source‐to‐sink dynamics and the dominant factors affecting sediment transportation in global submarine fans.
Reconciling the Long‐Term Growth of the Northeastern Tibetan Plateau and the Upstream Yellow River Profile
Authors: He X. , Yuan X. P. , He C. Q. , Wang X. Y. , Shen X. M. 
Published: February 2025

AbstractThe growth history of the Northeastern Tibetan Plateau (NETP) is enigmatic, with debates on when and how the NETP significantly uplifted. Here, we use a numerical landscape evolution model to quantitatively investigate the ∼20 Ma growth history of the NETP by studying the formation history of the upstream Yellow River (UYR). The long‐term growth history of the NETP consists of an early block uplift (∼20– Ma) and a late outward propagation uplift (–0 Ma), compared to the observed river profiles, erosion rates, the trend of acceleration time of deformation, and paleo‐elevation data sets. Before Ma (middle Miocene), the NETP was uplifted via a block growth, with a major uplift in the south part. Subsequently, the high (∼5 km) NETP has been uplifted via a northward propagation until the present. We further suggest that pure headward erosion unlikely formed the observed river profile of the UYR over the past few million years. Our modeling thus reconciles the long‐term outward growth of the NETP and the UYR profile, suggesting a downstream migration of high erosion rates, which is fundamentally different from the headward erosion of small mountain rivers. The downstream propagation of fluvial erosion may be common in the outward‐growing plateaus elsewhere on Earth.
FeO and TiO2 Maps of the Lunar Polar Regions Derived From the Clementine Data
Authors: Qiu Denggao , Chen Wencong , Yan Jianguo , Yi Sihai 
Published: February 2025

AbstractChang’E‐6 successfully completed the return of samples from the South Pole‐Aitken (SPA) basin on the Moon, and future Chang’E‐7 and Artemis missions will continue to focus on the lunar south polar region. FeO and TiO2 are the primary chemical components of the lunar surface, and determining their contents in the south polar region is essential for investigating the geology and volcanism of this region. This work remapped the global FeO and TiO2 content using Clementine data combined with updated lunar sample measurements. The new models for FeO and TiO2 achieve determination coefficients (R2) of 0.921 and 0.817, and root mean square errors (RMSE) of 1.38 wt.% and 1.17 wt.%, respectively. The addition of sample measurements from Chang’E‐3 and Chang’E‐5 has resulted in higher estimates for FeO content in the Procellarum KREEP Terrane (PKT) and the SPA, as well as lower estimates for TiO2 content in the maria. Furthermore, we present the Chang’E‐6 landing zone in the PKT to illustrate the geological implications of the new oxide content maps. Estimates of surface FeO and TiO2 content at the Chang’E‐6 sampling site are close to recent sample measurements and are consistent with the characteristics of the young maria unit in the landing zone. Our results provide valuable information on FeO and TiO2 content in the lunar south polar region, which will aid in the future analysis of Chang’E‐6 samples and contribute to geological investigations in the region.
Shaping exciton polarization dynamics in 2D semiconductors by tailored ultrafast pulses
Authors: Meron Omri , Arieli Uri , Bahar Eyal , Deb Swarup , Ben Shalom Moshe , Suchowski Haim 
Published: February 2025

Abstract
The ultrafast formation of strongly bound excitons in two-dimensional semiconductors provides a rich platform for studying fundamental physics as well as developing novel optoelectronic technologies. While extensive research has explored the excitonic coherence, many-body interactions, and nonlinear optical properties, the potential to study these phenomena by directly controlling their coherent polarization dynamics has not been fully realized. In this work, we use a sub-10 fs pulse shaper to study how temporal control of coherent exciton polarization affects the generation of four-wave mixing in monolayer

$${\rm{WS}}{{\rm{e}}}_{2}$$

WS

e

2

under ambient conditions. By tailoring multiphoton pathway interference, we tune the nonlinear response from destructive to constructive interference, resulting in a 2.6-fold enhancement over the four-wave mixing generated by a transform-limited pulse. This demonstrates a general method for nonlinear enhancement by shaping the pulse to counteract the temporal dispersion experienced during resonant light–matter interactions. Our method allows us to excite both 1s and 2s states, showcasing a selective control over the resonant state that produces nonlinearity. By comparing our results with theory, we find that exciton-exciton interactions dominate the nonlinear response, rather than Pauli blocking. This capability to manipulate exciton polarization dynamics in atomically thin crystals lays the groundwork for exploring a wide range of resonant phenomena in condensed matter systems and opens up new possibilities for precise optical control in advanced optoelectronic devices.