bluuebunny/crossref_metadata_2025_split huggingface dataset:
Business Model Theory and the Becoming of New Mobile Communications Technologies
Authors: Ahokangas Petri , Atkova Irina , Yrjölä Seppo , Matinmikko-Blue Marja 
Published: July 2024

AbstractExtant research falls short of explaining and predicting business model innovation (BMI) in emerging futuristic technology contexts. Building on next-generation mobile communications technology (6G), this research develops and explicates a forward-looking business model theory. It explains and theorizes BMI by systematically linking opportunity with scalability, value with sustainability, and advantage with replicability as antecedents and outcomes. The developed business model theory shifts the focus from the firm towards an ecosystem level of analysis and expands the time continuum from retrospection to forward-looking prediction. The business model theory allows researching BMI not only as an adaptation in a context but also by explaining and understanding the development of a firm and its future ecosystem.
Study on Fatigue Damage Characteristics of a Cement-Stabilized Soil for the Composite Foundation of Immersed Tunnels
Authors: Wang Xiang-qiu , Feng Tian-jun , Lei Guo-ping 
Published: July 2024

AbstractComposite foundations involving cement-stabilized soils are often adopted for immersed tunnels. In this paper, the cumulative damage characteristics of cement-stabilized soil were studied considering long-term traffic vibration loads. In total, four sets of dynamic fatigue damage tests with different cement contents and stress levels were carried out by applying an asymmetric sine-wave cyclic dynamic load. The fatigue cumulative damage characteristics and damage failure modes of the cement-stabilized soil were analyzed based on Miner's linear elastic fatigue cumulative damage theory. The correlation between the cyclic loading stress levels and the fatigue life Nf of the cement-stabilized soil was obtained, revealing the fatigue damage developing characteristics of the cement-stabilized soil.
Study on Wave Velocity Under Different Uniaxial Loading Conditions of Weathered Granite
Authors: Li Bo , Xiao Wei , Li Jun , Zhao Bo , Chen Hui , Zhang Chi , Sun Qi , Bai Youliang 
Published: July 2024

AbstractRock strength is an important parameter for rock mass quality evaluation, engineering design, and construction. However, engineering excavation causes rock damage and decreases in rock mass strength. Rock damage is closely related to its acoustic properties during the fracture process. Therefore, in order to obtain the rock stress and damage characteristics of granite during the uniaxial loading failure process under different weathering conditions, rock samples with different weathering degrees were carried out using a triaxial testing machine and wave velocity acquisition equipment. Uniaxial loading and acoustic parameter testing experiments. The test results show that the weathering and integrity of rocks can be characterized by comprehensive parameters such as density, wave speed and wave speed ratio; the elastic deformation stage characteristics of different weathered rocks during uniaxial loading are very significant, and there is an inflection point effect in the rock strength and wave speed curves, but due to Due to the influence of micro-joints and cracks inside the rock, the wave speed value does not completely correspond to the strength of the rock. A new damage variable is established based on rock density and integrity, which can characterize the rock loading failure damage process and has a clearer physical meaning.
Numerical Simulation of Ultimate Bearing Capacity of Corroded Pipeline under Coupling Load
Authors: Xu Tong , Sun Wei , Tan Wenyu , Feng Shuai 
Published: July 2024

AbstractBased on the ductile damage theory of metal materials, this paper systematically studies the ultimate bearing capacity of corroded pipeline subjected to axial force, bending moment and pressure by using fluid cavity simulation technology. For pipelines with different corrosion characteristics, the interaction diagram of the bearing capacity of corroded pipeline is established by considering the coupling effect of medium properties, pressure, external axial force and bending moment. The numerical simulation results show that the depth of corrosion strongly affects the bearing capacity of corroded pipeline. With the increase of defect depth, the N-M ( axial force and bending moment ) interaction curve of corroded pipeline gradually flattened. And the results can truly reflect the damage phenomenon.
Study on the Durability of Silica Fume Concrete in High Sulfate Environment of Plateau
Authors: Chen Zhimin , Zhang Zheng , Yi Mingyang , Yuan Qianlong , Wang Dianqiang , Liu Junhui 
Published: July 2024

AbstractTo investigate the effect of sulfate corrosion on the compressive strength of silica fume concrete under freeze-thaw conditions, different concretes with silica fume contents of 0%, 5%, 10%, and 15% were exposed to dry-wet erosion with 5% sulfate, freeze-thaw cycles with clear water, and dry-wet erosion with 5% sulfate followed by freeze-thaw cycles for a period of 75 days. The changes in compressive strength under different conditions and at different time intervals were analyzed. The results indicate that the extent of strength damage follows the order: dry-wet+freeze-thaw>freeze-thaw>dry-wet. The combined effect of dry-wet+freeze-thaw accelerates the deterioration of concrete strength. As the silica fume content increases, the rate of concrete compressive strength loss gradually stabilizes. For the 0% and 5% silica fume concretes, the loss of strength under the combined effect of dry-wet+freeze-thaw is more pronounced for 60 days. However, as the silica fume content increases beyond 5%, the rate of strength loss decreases by more than 10%. Therefore, the increase in silica fume content leads to a decrease in the rate of concrete strength loss.
Research on the Selection Model of Apron In-Ground Pit Based on Utility Tunnel Technology
Authors: Ouyang Jie , Song Zhiying , Qiao Xueqing , Li Xiaowei 
Published: July 2024

AbstractThis paper studies the selection of apron in-ground pits locations, using the Analytic Hierarchy Process to identify key factors influencing the selection of apron in-ground pits locations. It establishes a multi-objective optimization model for apron in-ground pits locations based on utility tunnel technology, considering the construction distance cost, the human resource cost, and the in-ground pits installation cost. The model is validated through simulation using particle swarm optimization algorithm. The results show that the proposed model can achieve the integration of apron in-ground pits. Compared with the existing pit system at Zhuhai Airport, the total cost has reduced by approximately 50.4%, 52.97%, and 34.01% for the three different aircraft parking stand layouts, respectively. This can provide guidance for the application of utility tunnel in airport construction, promote the improvement of apron operation efficiency and unmanned apron realization, and contribute positively to the development of green airports.
Stability Analysis of Surrounding Rock in Portal Section of Plateau Loose Rock Pile Tunnel Under Different Construction Methods
Authors: Chen Zhimin , Yi Mingyang , Zhang Gengwang , Zhang Zheng 
Published: July 2024

AbstractRock pile is a rock block formed by weathering of bedrock, and its stability is lower than that of other rock and soil. Therefore, there are numerous difficulties in the construction of tunnels through rock pile. In this paper, TBM method, three step method and CD method are chosen as the basis of tunnel stability analysis, and the numerical model of surrounding rock excavation stability of tunnel passing through rock pile is established. In this paper, the tunnel excavation is simulated by numerical simulation software, and the stability analysis of tunnel under different construction methods is performed. Combined with the engineering background and calculation analysis, compared with the three construction methods, it is found that the CD method has the strongest comprehensive protection for tunnel construction and is a more suitable construction method for crossing the rock pile tunnel.
Mitigating Underestimation in Infiltration Cooling Load in Metro Stations: A Simulation Method for Determination
Authors: Guan Bowen , Yang Haobo , Wang Xinke 
Published: July 2024

AbstractAccurate and rational estimation of cooling loads is crucial for the energy-efficient design of ventilation and air-conditioning systems in metro stations, contributing significantly to the low-carbon development of metro systems. This study conducted a comparative analysis between the cooling load estimates from design drawings and the actual measurements obtained on-site. The results revealed a significant underestimation, ranging from 81.0% to 87.5%, of the cooling load attributed to air infiltration through entrances during the design phase. To address this misestimation, a simulation method is proposed, utilizing a combined application of STESS software and Fluent software. The findings demonstrate that employing this simulation method can effectively mitigate the misestimation, reducing it to a range of 8.3% to 50.2%.
Growth dynamics and climate sensitivities in alpine cushion plants: insights from Silene acaulis in the Swiss Alps
Authors: Rai Samresh , Breme Nikola , Jandova Veronika , Lanta Vojtech , Altman Jan , Ruka Adam Taylor , Rixen Christian , Dolezal Jiri 
Published: July 2024

AbstractUnderstanding alpine plants’ growth dynamics and responses to warming is essential for predicting climate change impacts on mountain ecosystems. Here, we examine growth determinants in the alpine cushion plant Silene acaulis in the Swiss Alps, exploring ontogeny, elevation, and climate influences. We collected 40 Silene individuals and 159 individuals from 38 co-occurring alpine species across 2200–3130 m elevations in the Swiss Alps, analyzing age and growth histories through annual growth rings. While comparing growth rates, we found that Silene was relatively slow-growing. However, Silene exhibited a dual growth strategy, initially rapid and then slowing after ~ 20 years, challenging perceptions of its longevity. Similar ontogenetic trends were observed in other alpine species, albeit with variations based on species and elevation. The consistent unimodal growth-elevation pattern in Silene and other alpine plants, peaking at ~ 2400 m, underscores shared environmental constraints on alpine plant growth. Additionally, cross-dating growth ring series and correlating with daily climate data enabled the precise assessment of warming impacts on growth. Silene’s growth is influenced by year-to-year climate variability, with warming-induced moisture stress and overheating during spring and summer adversely affecting its growth. Despite being low-statured, Silene is not completely decoupled from atmospheric influences. The heat-trapping function of Silene, effective in mature and well-formed cushions, makes it susceptible to adverse effects as temperatures rise. This sensitivity raises concerns about the potential dieback of Silene cushions, as witnessed during recent heatwaves, and emphasizes the broader ecological implications for alpine ecosystems, given Silene’s role as a crucial nurse plant.
An approach to modelling defocusing and keyhole reflectivity in keyhole laser processes
Authors: Stavropoulos Panagiotis , Pastras Georgios , Tzimanis Konstantinos , Bekiaris Theodoros , Souflas Thanassis 
Published: July 2024

AbstractKeyhole laser-based processes have been adopted widely due to the high-quality welds and cuts that they produce and the accurately controlled dimensions of the end part. Fast-running simulation tools are required in order to estimate the dependence of process outputs, efficiency, and stability on the process variables. This work presents a fast-running simulation tool for keyhole laser-based processes with inert or no assisting gas that takes into account the effect of laser beam defocusing and the alteration of the effective reflectivity of the material due to the keyhole cavity. The model is built upgrading a successful model for the thermal phenomena based on finite differences and the enthalpy method. The presented model is compared to experimental results for the laser cutting process with both CO$$_2$$

2

and fiber laser sources and inert assisting gas. The model accurately predicts cutting depth and kerf, heat-affected zone width, and the dependence of the cutting depth on the position of the focal plane. The model manages to achieve reduced computational time enabling its utilization in process digital twins.
Interactions between lipid oxidation and anthocyanins from black carrots in ω-3 fatty acid-rich flaxseed oil-in-water emulsions
Authors: Klinger Evelyn , Salminen Hanna , Bause Karola , Weiss Jochen 
Published: July 2024

AbstractThe application of anthocyanins as red colorants in lipid-containing foods such as oil-in-water emulsions is challenging due to their ability to act as antioxidants and their instability under various environmental conditions. In this study, we investigated the kinetics of black carrot anthocyanin degradation and the subsequent color loss influenced by lipid oxidation reactions in 1% (w/w) flaxseed oil-in-water emulsions stabilized by 0.1% (w/w) sodium dodecyl sulfate (SDS) at pH 2 upon storage at 35 °C for ten days under light and in the dark. Oxidatively stable Miglyol oil-in-water emulsions and SDS solutions were used as reference. The results showed simultaneous formation of lipid hydroperoxides and degradation of anthocyanins. The addition of anthocyanins decreased lipid hydroperoxide formation, confirming the antioxidant activity of anthocyanins through radical scavenging mechanism. The kinetic modelling of lipid oxidation and anthocyanin degradation are particularly important for estimating color stability in colored emulsion-based food systems such as dairy or non-dairy milk or yoghurt drinks.
Graphical abstract
Erroneous saccade co-execution during manual action control is independent of oculomotor stimulus-response translation ease
Authors: Kürten Jens , Raettig Tim , Huestegge Lynn 
Published: July 2024

AbstractRecent multiple action control studies have demonstrated difficulties with single-action (vs. dual-action) execution when accompanied by the requirement to inhibit a prepotent additional response (e.g., a highly automatic eye movement). Such a dual-action performance benefit is typically characterized by frequent false-positive executions of the currently unwarranted response. Here, we investigated whether the frequency of false-positive saccades is affected by the ease of translating a stimulus into a spatial oculomotor response (S-R translation ease): Is it harder to inhibit a saccade that is more automatically triggered via the stimulus? Participants switched on a trial-by-trial basis between executing a single saccade, a single manual button press, and a saccadic-manual dual action in response to a single visual stimulus. Importantly, we employed three different stimulus modes that varied in oculomotor S-R translation ease (peripheral square > central arrow > central shape). The hierarchy of S-R translation ease was reflected by increasing saccade and manual reaction times. Critically, however, the frequency of false-positive saccades in single manual trials was not substantially affected by the stimulus mode. Our results rule out explanations related to limited capacity sharing (between inhibitory control and S-R translation demands) as well as accounts related to the time available for the completion of saccade inhibition. Instead, the findings suggest that the erroneous co-activation of the oculomotor system was elicited by the mere execution of a (frequently associated) manual response (action-based co-activation).
Zebrafish: unraveling genetic complexity through duplicated genes
Authors: Tasnim Maliha , Wahlquist Preston , Hill Jonathon T. 
Published: July 2024

AbstractThe zebrafish is an invaluable model organism for genetic, developmental, and disease research. Although its high conservation with humans is often cited as justification for its use, the zebrafish harbors oft-ignored genetic characteristics that may provide unique insights into gene structure and function. Zebrafish, along with other teleost fish, underwent an additional round of whole genome duplication after their split from tetrapods—resulting in an abundance of duplicated genes when compared to other vertebrates. These duplicated genes have evolved in distinct ways over the ensuing 350 million years. Thus, each gene within a duplicated gene pair has nuanced differences that create a unique identity. By investigating both members of the gene pair together, we can elucidate the mechanisms that underly protein structure and function and drive the complex interplay within biological systems, such as signal transduction cascades, genetic regulatory networks, and evolution of tissue and organ function. It is crucial to leverage such studies to explore these molecular dynamics, which could have far-reaching implications for both basic science and therapeutic development. Here, we will review the role of gene duplications and the existing models for gene divergence and retention following these events. We will also highlight examples within each of these models where studies comparing duplicated genes in the zebrafish have yielded key insights into protein structure, function, and regulation.
Postoperative outcomes and stimulation responses for sectioned nerve roots during selective dorsal rhizotomy in cerebral palsy
Authors: Makoshi Ziyad , Islam Monica , McKinney Jennifer , Leonard Jeffrey 
Published: July 2024

Abstract

Background
Cerebral palsy (CP) is the most cause of motor dysfunction in children. Selective dorsal rhizotomy (SDR) plays a major role in long term spasticity control. However, limited data exists on the effect of SDR on postoperative spasticity treatment requirements and supraspinal effects, and the stimulation responses of dorsal nerve roots in those with CP.

Methods
The current study included the outcome for 35 individuals undergoing SDR for motor functional outcome, spasticity, baclofen dose changes, botulinum toxin injection frequency, and spasticity related orthopedic procedures. We also report on the stimulation responses in 112 individuals who underwent SDR at our institution.

Results
There was a significant difference in gross motor function measures (GMFM)-66 scores at last follow up that remained present when considering only ambulatory children but not with non-ambulatory children. Ashworth scores were significantly decreased for both upper and lower extremities after SDR at all follow up points. There was a significant decrease in Baclofen dose and botulinum toxin injections requirements after SDR, but no significant difference in the need for orthopedic intervention. A total of 5502 dorsal nerve roots were tested showing a decrease in stimulation intensity and increase in grade on the right side and for descending lumbosacral levels.

Conclusions
SDR improves gross motor scores during short term follow up but has additional benefits in decreasing baclofen dosing and botulinum toxin injections requirements after surgery. They stimulation responses of sectioned dorsal nerve roots adds to the limited available data and our understanding of the pathological changes that occur in CP.
A comparative evaluation of the role of olfaction in attachment
Authors: Cox Emma , Collins-Pisano Courtney , Montgomery Lane , Katz Jeffrey S. 
Published: July 2024

Abstract
Olfactory information plays an important role in the attachment and bonding processes for both humans and non-human animals. Odor cues obtained via individual body odor facilitate attachment and bonding processes across species with regard to both mate selection and mother-infant bonding. The purpose of the present paper is to summarize the role of odor as it pertains to bond formation and maintenance in the mother-infant bond for human infants and non-human animal infants, and for mate selection among human adults and non-human animals. We then synthesize this summary with literature on attachment and existing evidence for the relationships between olfaction and attachment processes. Finally, we suggest avenues for areas of future research.
Reorganization of brain connectivity across the spectrum of clinical cognitive decline
Authors: Yüksel Dal Demet , Yıldırım Zerrin , Gürvit Hakan , Kabakçıoğlu Alkan , Acar Burak 
Published: July 2024

AbstractClinical cognitive decline, leading to Alzheimer’s Disease Dementia (ADD), has long been interpreted as a disconnection syndrome, hindering the information flow capacity of the brain, hence leading to the well-known symptoms of ADD. The structural and functional brain connectome analyses play a central role in studies of brain from this perspective. However, most current research implicitly assumes that the changes accompanying the progression of cognitive decline are monotonous in time, whether measured across the entire brain or in fixed cortical regions. We investigate the structural and functional connectivity-wise reorganization of the brain without such assumptions across the entire spectrum. We utilize nodal assortativity as a local topological measure of connectivity and follow a data-centric approach to identify and verify relevant local regions, as well as to understand the nature of underlying reorganization. The analysis of our preliminary experimental data points to statistically significant, hyper and hypo-assortativity regions that depend on the disease’s stage, and differ for structural and functional connectomes. Our results suggest a new perspective into the dynamic, potentially a mix of degenerative and compensatory, topological alterations that occur in the brain as cognitive decline progresses.
Jointly exploring mathematics ability and speed in large-scale computer-based testing
Authors: Bungaro Luca , Desimoni Marta , Matteucci Mariagiulia , Mignani Stefania 
Published: July 2024

AbstractIn large-scale tests, the implementation of computer-based testing (CBT) allows to automatically collect data not only on the students’ response accuracy (RA) based on item responses of the test, but also on their response time (RT). RTs can provide a more comprehensive view of a test-taker’s performance beyond just what is obtainable based on correct responses alone. In this paper a joint approach is considered to improve the estimation of ability scores involving complex data coming from computer-based test administration. The study focuses on analysing the data of Italian grade 10 mathematics national assessment administered by the National Institute for the Evaluation of the Education and Training System (INVALSI). In addition, a bivariate multilevel regression with speed and ability estimates, obtained by joint model, is developed including individual covariates to evaluate the contribution of individual and contextual variables in predicting test-taking speed and ability. Overall, the main results indicate that mathematics ability and speed are significantly and negatively correlated, and that the hierarchical data structure (students nested into classes) should be taken into account when explaining the dependency of ability and speed on explanatory variables, such as prior achievement, test anxiety, sociodemographic covariates, class compositional variables, school tracks and geographical area.