bluuebunny/crossref_metadata_2025_split huggingface dataset:
Thermal properties and the decomposition path of novel UV polymers of terpene-based monomer: citronellyl methacrylate
Authors: Makowskaya Katsiaryna , Jargieło Patrycja , Worzakowska Marta , Rogulska Magdalena 
Published: November 2023

AbstractThermal properties and the decomposition path of more environmentally friendly polymers in both atmospheres: inert and oxidizing have been studied with a use of simultaneous TG/FTIR/QMS and DSC methods. The polymeric materials in the UV-polymerization process of cyclohexyl methacrylate and methacrylate monomer obtained from natural terpene alcohol: citronellol, using different compositions of monomers were prepared. The glass transition temperature (Tg) and thermal stability of these high solvent and chemical resistant materials were dependent on the composition and increased with increasing cyclic monomer content in the compositions. The Tg changed from 9.8˚C to 47.5˚C and a thermal stability from 195˚C to 222˚C (inert atmosphere) and from 160˚C to 217˚C (oxidizing atmosphere). The TG/FTIR/QMS analysis proved the emission of cyclohexyl methacrylate, citronellyl methacrylate and their lower molecular mass decomposition fragments, e.g., propene, cyclohexane, citronellol, citronellal, formic acid, methacrylic acid and CO, CO2 during heating of these materials in helium and air atmospheres. It indicated the same radical mechanism of their decomposition in both atmospheres which meant that the presence of oxygen did not affect the course of decomposition but reduced the initial decomposition temperature of the copolymers.
What do we know about the disruption index in scientometrics? An overview of the literature
Authors: Leibel Christian , Bornmann Lutz 
Published: November 2023

AbstractThe purpose of this paper is to provide a review of the literature on the original disruption index (DI1) and its variants in scientometrics. The DI1 has received much media attention and prompted a public debate about science policy implications, since a study published in Nature found that papers in all disciplines and patents are becoming less disruptive over time. This review explains in the first part the DI1 and its variants in detail by examining their technical and theoretical properties. The remaining parts of the review are devoted to studies that examine the validity and the limitations of the indices. Particular focus is placed on (1) possible biases that affect disruption indices (2) the convergent and predictive validity of disruption scores, and (3) the comparative performance of the DI1 and its variants. The review shows that, while the literature on convergent validity is not entirely conclusive, it is clear that some modified index variants, in particular DI5, show higher degrees of convergent validity than DI1. The literature draws attention to the fact that (some) disruption indices suffer from inconsistency, time-sensitive biases, and several data-induced biases. The limitations of disruption indices are highlighted and best practice guidelines are provided. The review encourages users of the index to inform about the variety of DI1 variants and to apply the most appropriate variant. More research on the validity of disruption scores as well as a more precise understanding of disruption as a theoretical construct is needed before the indices can be used in the research evaluation practice.
Prevention and control of ship-source pollution in the Arctic shipping routes: challenges and countermeasures
Authors: Zhang Cheng , Yang Jia-qi 
Published: November 2023

AbstractShip-source pollution is one of the important contributors to marine environment pollution. Because the legal status of the Arctic shipping routes is not clear, there is a considerable degree of dispute in the application of the rules on the prevention and control of ship-source pollution. The increased melting of sea ice undermines the legal legitimacy of the “ice-covered areas” clause under the United Nations Convention on the Law of the Sea. The conflict between the application of the Polar Code and “ice-covered areas” will also reach an initial conclusion in the context of melting sea ice. However, the inadequacy of ship-source pollution rules in the Polar Code hampers its application, which has led to a negative impact on the more active role in the governance of pollution from Arctic shipping. For replying to the Challenges in the prevention of ship-source pollution in Arctic shipping routes, the relevant rules of the Polar Code need to be further improved, while a more binding HFO ban according to ship types needs to be applied. Therefore, a more important role in the future Arctic governance mechanism will be played by the enhanced enforcement of the Polar Code, meanwhile, the target for uniform international regulation of preventing and controlling ship-source pollution in Arctic shipping routes should be achieved.
Changing trends in gamma knife surgery to linear accelerator brain stereotactic radiotherapy in Japan: a survey based on the nationwide claims database
Authors: Koide Yutaro , Aoyama Takahiro , Tanaka Hiroshi , Shindo Yurika , Nagai Naoya , Kitagawa Tomoki , Shimizu Hidetoshi , Hashimoto Shingo , Tachibana Hiroyuki , Kodaira Takeshi 
Published: November 2023

Abstract
Purpose
This study evaluated the trends in the platform for stereotactic radiotherapy to the brain (SRT), utilizing the open data of the National Database published by the Ministry of Health, Labour, and Welfare.

Materials and methods
This study analyzed data from FY2014 to FY2021. The practices included in the study were gamma knife surgery (GKS) and SRT with a linear accelerator (LINAC). The total number of outpatient and inpatient cases in each SRT system was evaluated annually.

Results
From April 2014 to March 2022, the study included 212,016 cases (102,691 GKS and 109,325 LINAC) of the registered 1,996,540 radiotherapy cases. In the first year, 13,117 (54.1%) cases were GKS, and 11,128 (45.9%) were LINAC; after that, GKS decreased, and LINAC increased, reaching the same rate in FY2017. Compared to the first year, the final year showed 11,702 GKS (− 1415 or − 10.8%) and 17,169 LINAC (+ 6041 or + 54.3%), with an increase of 4626 total SRT cases to 28,871 (+ 19.1%). The percentage of outpatient treatment also increased from 4.6 to 11.8% for GKS and from 44.7 to 57.9% for LINAC.

Conclusion
The study found a gradual decrease in the selection of GKS, an increasing trend in the selection of LINAC, and an increase in the overall number of stereotactic irradiations. In particular, the proportion of outpatient treatment increased, indicating that more than half of LINAC was selected for outpatient treatment.
“Don’t Leave me Behind!” Problematic Internet Use and Fear of Missing Out Through the Lens of Epistemic Trust in Emerging Adulthood
Authors: Benzi Ilaria Maria Antonietta , Fontana Andrea , Lingiardi Vittorio , Parolin Laura , Carone Nicola 
Published: November 2023

AbstractThe present study investigates the association between Fear of Missing Out (FoMO) and Problematic Internet Use (PIU) in a sample of 358 cisgender emerging adults (74.58% females assigned at birth; Mage = 25.02, SD = 2.60; age range: 18–29 years), with a specific focus on the roles of various stances of Epistemic Trust, including Trust, Mistrust, and Credulity. The aim is to explore the complexities of these relationships and their implications for the psychological well-being of this population. We computed a mediation model to examine the relationships among PIU as the dependent variable, FoMO as the predictor, and Epistemic Trust, Mistrust, and Credulity as the mediating factors. Covariates such as age, gender, and sexual orientation were also considered in the analysis. The results revealed significant indirect effects for both Mistrust and Credulity. Specifically, higher levels of FoMO were associated with increased Mistrust and Credulity, leading to greater PIU. In contrast, the indirect effect of Trust was not significant. Also, FoMO had a direct effect on PIU. The results highlight the importance of considering Mistrust and Credulity as potential risk factors for Internet addiction in emerging adults. These findings have practical implications for clinical practice, psychological assessment, and intervention strategies, emphasizing the need to address FoMO and its associated vulnerabilities within different therapeutic settings. By doing so, mental health professionals can better support the psychological well-being of emerging adults and assist them in navigating the challenges inherent to this crucial developmental stage.
Does habitual moderate alcohol consumption enhance working memory performance?
Authors: Cansino Selene , Torres-Trejo Frine , Estrada-Manilla Cinthya , Ruiz-Velasco Silvia 
Published: November 2023

AbstractThe present study aimed to establish whether habitual alcohol consumption benefits verbal and spatial working memory performance after addressing the main criticisms that have been raised against the finding that alcohol benefits cognition. An adult lifespan sample of 1,652 healthy adults between 21 and 80 years of age participated in the study. Participants were classified as lifetime nondrinkers or drinkers, and several demographic and biological variables were controlled. Alcohol consumption was assessed through a lifestyle questionnaire created for the study. Working memory was measured through a 2-back computerized task. Discrimination and speed in verbal and spatial working memory among drinkers were superior to those among nondrinkers. Total alcohol intake across life and the amount of alcohol intake per week predicted higher verbal and spatial working memory discrimination. Beer drinkers showed more accurate and faster responses in verbal and spatial working memory than nondrinkers, wine drinkers and spirit drinkers. The optimal amount of alcohol intake to benefit working memory for women and men was 100 g per week, which is equivalent to one drink per day. After consuming 350 g of alcohol per week, equivalent to 25 drinks per week, the effects of alcohol on working memory become more negative than the effects of alcohol abstinence. While alcohol consumption is considered a risk factor for several diseases, we found that moderate alcohol intake benefits working memory performance throughout the adult lifespan to a greater extent than whole-life abstinence.
Why are the Solutions to Overdetermined Problems Usually “As Symmetric as Possible”?
Authors: Cavallina Lorenzo 
Published: November 2023

AbstractIn this paper, we study the symmetry properties of nondegenerate critical points of shape functionals using the implicit function theorem. We show that, if a shape functional is invariant with respect to some one-parameter group of rotations, then its nondegenerate critical points (bounded open sets with smooth enough boundary) share the same symmetries. We also consider the case where the shape functional exhibits translational invariance in addition to just rotational invariance. Finally, we study the applications of this result to the theory of one/two-phase overdetermined problems of Serrin-type. En passant, we give a simple proof of the fact that, under suitable smoothness assumptions, the ball is the only nondegenerate critical point of the Lagrangian associated to the maximization problem for the torsional rigidity under a volume constraint. We remark that the proof does not rely on either the method of moving planes or rearrangement techniques.
Assessing the Verbal Behavior of a Linguistically Diverse Speaker with Autism
Authors: Atherkode Sreeja , Mason Lee 
Published: November 2023

AbstractFor speakers belonging to multiple verbal communities, functional analyses of verbal behavior allow for dynamic control over response topography. The simple practice of allowing the speaker the freedom to select the language of instruction minimizes cultural bias and hegemony. We extended the research on functional analyses of verbal behavior to include a speaker of multiple languages in a quasi-experimental case study. We employed verbal operant experimental (VOX) analyses as a repeated measure of language acquisition with a linguistically diverse, 7-year-old Indian boy with autism. The VOX analyses were conducted as part of the child’s early intensive behavioral intervention, and we observed the impact of an immersive foreign language experience on his verbal repertoire with follow-up VOX analyses conducted in three topographically distinct languages: English, Telugu, and Tamil. The results show a dynamic hierarchy of strength between the three languages, with overarching patterns across the three assessments. The implications for using VOX analyses to assess the functional language skills of multilingual speakers with autism are discussed, and areas of future research are highlighted.
Meaningfulness, Death, and Suffering: Philosophy of Meaning in Life in the Light of Finitude
Authors: Peltomäki Isto Johannes 
Published: November 2023

AbstractSubjective sense of meaningfulness of life, or meaning in life, is a growing theme of interest in psychological research. Psychology of meaningfulness originates from existential psychology that aligned closely to mid-twentieth century philosophical existentialism. Now positive psychology is a strong field of study of meaning in life. This article investigates the role of the negative element of human life, that is, death and suffering, plays in psychologies about meaning in life. This article proposes the concept of finitude for the negative element of human life, aims to clarify the central concepts of meaning in life and meaning-making, and offers a short intellectual historical background on questioning existential psychology and meaning in life. The article concentrates on selected classic existential psychological thinkers (Viktor Frankl, Rollo May, and Irvin Yalom), on Tatjana Schnell’s contemporary existential psychology, and on Martin Seligman’s contemporary positive psychology.
Assessing the potential of compaction techniques in tropical peatlands for effective carbon reduction and climate change mitigation
Authors: Samuel Marshall Kana , Evers Stephanie L. 
Published: November 2023

AbstractThere is a pressing need to tackle carbon emissions from oil palm plantations on tropical peatland, which has garnered significant discussion and concern in recent years. In response, compaction techniques were introduced in Malaysia with the aim of mitigating CO2 emissions by improving moisture levels and reducing soil aeration. This research investigates the impact of mechanical compaction on two distinct ecosystems: a peat swamp forest (PSF) and an oil palm plantation (OPP), characterized by their unique physicochemical properties Using a specially designed compaction apparatus, significant changes in carbon emissions were observed in PSF but not in OPP, with means 1263 and 404 mg CO2-eq m−2 h−1, respectively. This disparity can be due to substrate availability between the two ecosystems. Subsequently, in the PSF, a promising pattern of a percentage ratio of approximately 1:3.5 was observed, indicating a substantial reduction in CO2 emissions (from 1295 to 468 mg m−2 h−1; 64%) alongside a corresponding increase in CH4 emissions (from −50 to 60 µg m−2 h−1; 221%). This finding suggests that compaction alters the aerobic peat horizon, bringing the peat surface closer to the groundwater level. The study underscores the importance of considering confounding factors such as decomposition degree and groundwater fluctuation when assessing the effects of compaction on tropical peat. By shedding light on these complexities, the findings contribute to a better understanding of the efficacy of compaction techniques in reducing emissions of these special case atmospheric pollutants.
An antenna array utilizing slotted conductive slab: inspired by metasurface and defected ground plane techniques for flexible electronics and sensors operating in the millimeter-wave and terahertz spectrum
Authors: Ali Esraa Mousa , Alibakhshikenari Mohammad , Virdee Bal S. , Kouhalvandi Lida , Livreri Patrizia , Falcone Francisco 
Published: November 2023

AbstractThis paper describes an innovative design of an antenna array that is metamaterial inspired using sub-wavelength slots and defected ground structure (DGS) for operation over millimeter-wave and terahertz (THz) spectrum. The proposed antenna array consists of a 2 × 4 array of conductive boxes on which are implemented rectangular slots. The presence of dielectric slots introduces resonant modes within the structure. These resonant modes result in enhancing the electromagnetic fields within the slots, which radiate energy into free space. The resonant frequencies and radiation patterns depend on the specific geometry of the slots and the dielectric properties. The antenna array is excited through a single microstrip line. The radiating elements in the array are interconnected to each other with a microstrip line. Unwanted mutual coupling between the radiating elements can degrade the performance of the antenna. This was mitigated by defecting the ground plane with rectangular slots. It is shown that this technique can enhance the array’s reflection coefficient over a wider bandwidth. The array was constructed on polyimide substrate having dielectric constant of 3.5 and thickness of 20 μm. The design was modelled, and its performance verified using an industry standard electromagnetic package by CST Studio Suite. The proposed array antenna has dimensions of 20 × 10 mm2 and operates between 80 and 200 GHz for radiation gain better than 4 dBi and efficiency above 55%. The peak radiation gain and efficiency are 7.5 dBi and 75% at 91 GHz, respectively. The operational frequency range of the array corresponds to a fractional bandwidth of 85.71%.
The effect of 10-week long yoga training on interoceptive abilities: cross-sectional and longitudinal investigation of cardiac and gastric accuracy
Authors: Koncz Ádám , Csala Barbara , Ferentzi Eszter 
Published: November 2023

AbstractBased on their characteristics, it is likely that mind–body techniques develop interoception, the perception of bodily state. Nevertheless, findings on mindfulness, meditation, yoga, and body scan techniques are inconclusive. Additionally, the methodological scope is not exhaustive, neither in terms of the intervention nor the applied measure of interoception. This study investigated for the first time the effect of regular yoga training on cardiac and gastric perceptual ability (measured with the mental heartbeat tracking task and the water load task, respectively). With the involvement of 90 female university students (yoga group n = 57, control group n = 33) we did not find any connection between baseline heartbeat perception score and gastric fullness. Moreover, the applied 10-week-long regular yoga training did not develop any of the measured interoceptive abilities. We conclude that yoga might develop other abilities than these specific sensations. Very probably, the measured cardiac and gastric perceptual abilities do not represent bodily sensations in general. It would be worth to investigate, however, the effect of longer yoga training on interoception.
Effect of Pb doping on the structural, optical and electrical properties of sol–gel ZnO nanoparticles
Authors: Moosavi Fatemeh , Neri Giovanni 
Published: November 2023

AbstractPure and Pb-doped ZnO NPs were synthesized using the sol–gel method. The structural and morphological properties were investigated via XRD, FTIR and FE-SEM. A detailed study of the effect of Pb on the properties of ZnO NPs ascertained many interesting results. XRD analysis showed that doped and undoped samples have hexagonal wurtzite structures and the average grain size increases from 21.2 to 27.8 nm with doping. Morphological analysis of undoped and Pb-doped ZnO NPs indicated that they are composed of quasi-spherical particles. Optical and electrical characteristics were also evaluated by UV–Vis spectroscopy and electrical measurements. These studies revealed that the Pb doping resulted in a blue shift of the absorption edge and thus increasing the gap band, from 3.39 to 3.53, and the electrical resistance. Based on these characteristics, the possible use of the sol–gel synthesized Pb–ZnO for conductometric gas sensing, was also discussed.
Optimizing Boundary Conditions in GNSS Tomography: A Continuous 7‐Month Case Study in the Amazon
Authors: Miranda P. M. A. , Adams D. K. , Tomé R. , Fernandes R. , Mateus P. 
Published: November 2023

AbstractDifferent estimates of the regional water vapor scale height, taken from ERA5 reanalysis, in situ observations and the direct optimization of retrieved water vapor profiles in GNSS tomography, are found to have major impact in the performance of tomographic inversions, with the better results displaying mean errors comparable to radiosondes. The analysis uses 7 months of GNSS (Global Navigation Satellite Systems) observations in the Amazon Dense GNSS Network near Manaus, Brazil, in 2011–2012, to compute a time series of water vapor profiles, with a tomographic technique capable of producing quasi‐instantaneous inversions with minimal external data or constraints. Results compare very well with 12‐hourly in situ radiosondes, especially in the lower troposphere above 2 km, and its daily‐to‐seasonal variability compares well with WRF (Weather Research and Forecasting) convective‐permitting simulations driven by ERA5 boundary conditions, suggesting that GNSS tomography may be an important source of atmospheric water vapor data for different applications.
Crustal Conditions Favoring Convective Downward Migration of Fractures in Deep Hydrothermal Systems
Authors: Halldórsdóttir Sæunn , Berre Inga , Keilegavlen Eirik , Axelsson Gudni 
Published: November 2023

AbstractCooling magma plutons and intrusions are the heat sources for hydrothermal systems in volcanic settings. To explain system longevity and observed heat transfer at rates higher than those explained by pure conduction, the concept of fluid convection in fractures that deepen because of thermal rock contraction has been proposed as a heat‐source mechanism. While recent numerical studies have supported this half a century old hypothesis, understanding of the various regimes where convective downward migration of fractures can be an effective mechanism for heat transfer is lacking. Using a numerical model for fluid flow and fracture propagation in thermo‐poroelastic media, we investigate scenarios for which convective downward migration of fractures may occur. Our results support convective downward migration of fractures as a possible mechanism for development of hydrothermal systems, both for settings within active zones of volcanism and spreading and, under favorable conditions, in older crust away from such zones.