bluuebunny/crossref_metadata_2025_split huggingface dataset:
ChatGPT as a CALL tool in language education: A study of hedonic motivation adoption models in English learning environments
Authors: Qu Kunyang , Wu Xuande 
Published: March 2024

AbstractThe advancement of information technologies has led to increased attention to AI chatbots as valuable tools for computer-assisted language learning (CALL), drawing the attention of both academic scholars and industry practitioners. However, there remains limited understanding regarding the adoption of AI chatbots, specifically within the context of the English language. To address this existing research gap and examine the perception and motivation of usage of ChatGPT, this research employed the hedonic motivation system adoption model (HMSAM) to examine the adoption of ChatGPT. Employing structural equation modelling (SEM), a comprehensive investigation was conducted using data sourced from 189 valid responses obtained through an online survey administered to Chinese international students who are currently enrolled in British universities. The findings reveal that the research model effectively elucidates the elements influencing the adoption of ChatGPT in English learning. Notably, boredom, joy, focused immersion, and control emerged as significant mediating factors pertaining to the link between perceived ease of use and behavioural intention. These findings offer meaningful perspectives for upcoming researchers and practitioners in English language teaching and learning, contributing to promoting innovation in this domain.
Racial Disparities in Breastfeeding Rates in Patients with Heart Disease
Authors: Oben Ayamo G. , Blanchard Christina T , Robinson Ashton , Girling Isabel , Joly Joanna M. , Cribbs Marc , Tita Alan , Casey Brian , Sinkey Rachel 
Published: March 2024

Abstract
Objective
To evaluate racial disparities in breastfeeding rates in patients with heart disease.

Study Design
Retrospective cohort of pregnant patients with maternal cardiac disease managed by a Cardio-Obstetrics program. Patients self-identifying as Non-Hispanic Black (NHB) and Non-Hispanic White (NHW), who attended ≥ 1 prenatal visit at the Cardio-Obstetrics Program and delivered at the same hospital between March 2015 and June 2019 were included. The primary outcome was breastfeeding rate at discharge from the delivery-associated hospitalization. Secondary outcomes included breastfeeding intent on admission and breastfeeding rates at the postpartum visit among patients who initiated breastfeeding.

Results
138 pregnant patients with cardiac disease were included: 58 (42%) NHB and 80 (58%) NHW patients. Parity, marital status and insurance were statistically different between groups. NHB patients were more likely to have government insurance compared to NHW patients (77.6% vs. 40%; p < 0.001). There was a significant difference in the intent to breastfeed upon admission for the delivery-associated hospitalization (74.2% NHB vs. NHW 91.3%; p = 0.01), but not at hospital discharge (84.5% NHB vs. 93.8% NHW; p = 0.08). However, breastfeeding rates were significantly lower among NHB patients at the postpartum visit among the entire cohort (38.2% in NHB vs. 61.1% in NHW women; p = 0.036) and among those who initiated breastfeeding (35.3% NHB vs. 61.1% NHW, p = 0.018).

Conclusions
Despite similar breastfeeding rates at hospital discharge, NHB patients with maternal cardiac disease were less likely to intend to breastfeed at admission and/or continue breastfeeding by the postpartum visits. Qualitative studies understanding these differences are crucial to improve breastfeeding rates, especially for NHB patients with maternal cardiac disease.
Vom Kartenlesen zur GPS-Navigation
Authors: van Mark A. , Hallstein T. , Wanke E. M. , Holzgreve F. , Fischer M. , Ohlendorf D. 
Published: March 2024

ZusammenfassungDiese Übersichtsarbeit im Rahmen der Sozialmedizin beschreibt die historische Entwicklung von Hilfsrist und Anfahrt nach dem Absetzen eines Notrufs in der Bundesrepublik Deutschland (BRD) unter besonderer Berücksichtigung der aktuellen technischen Fortschritte. In der BRD zählen Polizei, Feuerwehr und Rettungsdienst zu den sog. Behörden und Organisationen mit Sicherheitsaufgaben (BOS). Im Rettungsdienst werden Rettungsmittel – wie Noteinsatzfahrzeug (NEF), notarztbesetzter Rettungswagen (NAW), Rettungswagen (RTW), Rettungshubschrauber (RTH) oder in der Feuerwehr u. a. das Hilfeleistungslöschgruppenfahrzeug (HLF) – über eine Rettungsleitstelle alarmiert und müssen im Notfall in kürzester Zeit mittels Sonder- und Wegerechte den Weg zum Einsatzort mit möglichst kurzem Zeitaufwand finden. Auch mittels technischer Unterstützung, insbesondere durch GPS-Navigation (Global Positioning System), wird versucht, diesen Anforderungen Rechnung zu tragen.
Energetic analysis and economic viability of active atmospheric water generation technologies
Authors: Potyka Julius , Dalibard Antoine , Tovar Günter 
Published: March 2024

AbstractWater scarcity is a growing global and systematic problem in regions with low groundwater availability. Atmospheric water generation (AWG) technologies are an innovative solution to the water shortage problem, as atmospheric water vapor is a readily available resource even in arid regions, with the drawback of high energy consumption. In this paper, the viability of AWG technologies on an energy and economic level is investigated by thermodynamic modeling of three main active AWG systems consisting of cooling condensation, adsorption and absorption processes. A location analysis model is developed to evaluate the performance based on representative weather data of temperature, pressure and relative humidity over a period of one year to account for seasonal shifts and daily variations in climatic conditions. The specific energy consumption kWh/kg, water production trend and total specific cost are calculated for each technology. Water production by seawater desalination at the nearest coastline and transportation to the site by tanker truck, as well as bottled water prices, are used as benchmarks to assess economic viability. The results show that active AWG systems can only be an economically viable alternative if the water consumption site is relatively far from the coast or other water-rich regions and low electricity costs are available (distance >600 km, electricity price <0.10 US$/kWh). Compared to bottled water, all AWG technologies are in a competitive price range. Absorption systems have an energy efficiency advantage over conventional cooling condensation and adsorption systems (cooling condensation: average 0.42 kWh/kg; absorption: average 0.38 kWh/kg; adsorption: average 1.16 kWh/kg), but require a higher degree of process and plant design development. However, because of the high fluctuation in water production, atmospheric water generation technologies should be considered as a complementary supply to conventional water sources.
A Methodology for the Preliminary Design of a High-Efficiency Multistage Plasma Thruster
Authors: Puca Nicola , Panelli Mario , Battista Francesco 
Published: March 2024

AbstractSpace electric propulsion represents a class of power-limited systems that utilize the interaction of electromagnetic fields with ionized inert gas propellants to generate thrust. This technology has emerged as a highly fuel-efficient and sustainable alternative to chemical propulsion systems, particularly for satellite constellations. However, the miniaturization potential of EP systems is impeded by certain limitations, necessitating the exploration of novel architectures. The high-efficiency multistage plasma thruster (HEMP-T) stands as a promising contender for stand-alone missions due to its employment of a cusped magnetic-field topology, which effectively mitigates plasma-wall interactions and enhances overall efficiency even at low thrust levels. Despite the growing interest in HEMP-Ts, there is a dearth of comprehensive and streamlined preliminary design procedures for these systems. Prior research has predominantly focused on extensive numerical analyses, neglecting the development of efficient and accessible design tools. To bridge this gap, this paper presents a novel preliminary design tool derived from integrating established analytical models available in the literature. The proposed design tool also incorporates an iterative procedure that refines geometric properties using a 2D magnetostatic solver. Through the application of this tool, a 4 mN HEMP thruster was analyzed. This finally exhibited a specific impulse of approximately 2000s and a good efficiency level of 23%. Also, the results obtained for a 10 mN application align closely with those achieved by other types of EP thrusters.
Impact of specific ion effects and electrostatic interactions on a polyelectrolyte-polyampholyte complex
Authors: Chituru Sunetra V. , Das Sougat , Majumdar Saptarshi 
Published: March 2024

AbstractA complex overlay of interactions governs the conformations of polymers in solution. Among them, electrostatic interactions are the dominating factor for governing the dynamics of charged macromolecules. Salt ions further impact the conformations by inducing screening of the electrostatic interactions of the polymers. Polyelectrolytes and polyampholytes are two majorly used charged polymers for engineering hydrogels. These polymers form a complex when added together in a solution. This article emphasises the effect of salts on the polyelectrolyte-polyampholyte complex. The interactions have been analysed through the viscosity and diffusivity measurements. The in-depth analysis of the specific ion effect along with the viscous effect induced by the polymer has been carried out. It was concluded that the viscous effect tends to reverse the impact of salts on the electrostatic-dominated conformations of the polymers. The ‘Shear Dependent Generalised Intrinsic Viscosity’ (SDGIV) have been used to gain insights into the interactions between the polymers. Finally, the scaling of the viscosity with respect to the polymer concentration and the impact of the salts on the same has also been studied. It is concluded that the viscous effect of the polymers should also be considered for analysing the specific ion effects of the salts on the charged polymers.
Graphical Abstract
Analysis of large-scale fires in Makkah’s King Khaled Road tunnel using non-gray radiation models
Authors: Guedri Kamel , Alorabi Abdulrahman S. , Mandourah Talal S. 
Published: March 2024

AbstractThe present study validated a fire dynamic simulation approach for reducing costs and losses in tunnel fire tests. It analyzed various radiation models, including gray, non-gray, and non-gray sooting models. The central processing unit (CPU) run time of the last model was very long, and the model is of little value in practice. The non-gray model was found to be the most accurate and efficient. This model was used to study fire behavior in the King Khaled Road tunnel in Makkah. This was done because the tunnel is small, there aren't many ways to get out, and it's hard to get firefighting teams to a place like Makkah during the Hajj season when there are a lot of people. Results showed that gas temperature, radiation, CO and CO2 concentrations, and air velocity increased with heat release rate, oxygen concentration, and soot yield. The air velocity was overpredicted during the simulations, having consequences for most of the other quantities, and this led to a cooler gas temperature, higher oxygen levels, and lower CO and CO2 concentrations. In addition, it is established that gas temperature and radiation increased when the ambient temperature increased, and oxygen concentration and air velocity were mostly unaffected by changing ambient temperature.
Against Evidential Minimalism: Reply to Hofmann
Authors: Buckley Daniel 
Published: March 2024

Abstract
In this paper, I respond to Frank Hofmann's reply to my (2022) argument against “evidential minimalism” (EM). According to defenders of EM, there is a close connection between evidence and normative reasons for belief: evidence is either itself, or (under certain “minimal” conditions) gives rise to, a normative reason for belief. In my (2022), I argued against EM by showing that there are cases where: (i) S possesses strong evidence E for the truth of p at time t, (ii) all minimal conditions for the normativity of E are met at t, (iii) S doesn't believe p at t, yet (iv) S isn't criticizable on account of (i)–(iii) at t. I then appealed to a linking claim connecting criticizability with the existence of normative reasons for belief. Hofmann's reply invokes a distinction between two different kinds of epistemic criticism: a strong and a weak form. I will argue that Hofmann's distinction fails to save EM from my argument.
Should we ignore SARS-CoV-2 disease?
Authors: Nesteruk Igor 
Published: March 2024

Abstract
Current World Health Organization (WHO) reports claim a decline in COVID-19 testing and reporting of new infections. To discuss the consequences of ignoring severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2) infection, the endemic characteristics of the disease in 2023 with the ones estimated before using 2022 data sets are compared. The accumulated numbers of cases and deaths reported to the WHO by the 10 most infected countries and global figures were used to calculate the average daily numbers of cases DCC and deaths DDC per capita and case fatality rates (CFRs = DDC/DCC) for two periods in 2023. In some countries, the DDC values can be higher than the upper 2022 limit and exceed the seasonal influenza mortality. The increase in CFR in 2023 shows that SARS-CoV-2 infection is still dangerous. The numbers of COVID-19 cases and deaths per capita in 2022 and 2023 do not demonstrate downward trends with the increase in the percentages of fully vaccinated people and boosters. The reasons may be both rapid mutations of the coronavirus, which reduced the effectiveness of vaccines and led to a large number of re-infections, and inappropriate management.
Norm Entrepreneurship in Digital Trade: The Singapore-led Wave of Digital Trade Agreements
Authors: Jones Emily , Kira Beatriz , Tavengerwei Rutendo 
Published: March 2024

AbstractRulemaking in digital trade is proceeding apace. Many preferential trade agreements contain dedicated e-commerce or digital trade chapters and some states have entered into stand-alone digital economy agreements. This article seeks to establish whether, and to what extent, normative change is occurring in digital trade agreements, the nature of any changes, and identify which states are acting as norm entrepreneurs. We employ a new method of legal coding, systematically comparing the nature and prescriptiveness of digital provisions in 12 trade agreements concluded between 2019 and 2023. We find evidence of substantial policy innovation, and identify Singapore as the key norm entrepreneur. A new wave of ‘Singapore-led’ agreements substantially expands the scope of digital trade, to cover areas such as digital identities, e-invoicing and e-payments, the governance of AI, and regulation of new digital technologies. Commitments are typically couched as soft rather than hard law, reflecting the nascent stages of rulemaking. Norm entrepreneurship on the part of Singapore and its allies reflects a desire to position themselves as ‘digital hubs’ in the global economy, spur rulemaking in areas where innovation is ahead of regulation, and promote digital interconnectivity at time of regulatory divergence and geopolitical rivalry.
Most Unusual Twin Pairs: A Look at Uterus Didelphys / Twin Research Reviews: Prenatal Aneuploidy Screening for Twin Pregnancies; Twin Conceptions by Same-Sex Male Couples; Legal Personality of Conjoined Twins; Twin Study of Cannabis Use / Human Interest and Importance: Being Taken for Twins Saved Sisters; Twin Children of Jailed Nobel Prize Winner; British ‘Biracial’ Twins; Triplets Born at Start of Russian Attack on Ukraine; Twins Born in Different Years
Authors: Segal Nancy L. 
Published: March 2024

AbstractA review of an unusual twin type—twins born to women with two uteri (uterus didelphys)—is presented. This review is followed by summaries of recent research and perspectives concerning prenatal aneuploidy screening for twin pregnancies, twin conceptions by same-sex male couples, legal personality of conjoined twins, and a twin study of cannabis use. Interesting information about twins that has appeared in the media is also presented, namely how being taken for twins saved a pair of sisters; twin children of a jailed Nobel Prize winner, British ‘biracial’ twins, triplets born at the start of Russia’s attack on Ukraine, and twins born in different years.
Locating Hydrologically Unsustainable Areas for Supporting Ecological Restoration in China's Drylands
Authors: Fu Fengyu , Wang Shuai , Wu Xutong , Wei Fangli , Chen Peng , Grünzweig José M. 
Published: March 2024

AbstractChina has undertaken extensive ecological restoration (ER) projects since the late 1970s in drylands, dominating the greening of drylands. The greening, especially ER‐induced, can affect regional water availability and even cause hydrological unsustainability (i.e., lead to a negative shift in ecosystem water supply and demand balances). However, there is still limited research on accurately identifying the hydrologically unsustainable greening areas (GA) in China's drylands. Here, we developed an ecosystem water supply‐demand indicator, namely, the water self‐sufficiency (WSS), defined as the ratio of water availability to precipitation. Using remote sensing and multisource synthesis data sets combined with trend analysis and time series detection, we conducted a spatially explicit assessment of the hydrological sustainability risk of greening in China's drylands in the context of ER projects over the period 1987–2015. The results showed that 17.15% (6.36 × 104 km2) of the GA faced a negative shift in the WSS (indicating hydrological unsustainability), mainly in Inner Mongolia, Shanxi, and Xinjiang provinces, driven by evapotranspiration. Moreover, 29.34% (1.09 × 105 km2) of the GA, whose area is roughly double that of hydrologically unsustainable GA, exhibited a potential water shortage with a significant WSS decline (−0.014 yr−1), concentrated in Inner Mongolia, Shaanxi, and Gansu provinces. The reliability of our findings was demonstrated through previous studies at the local scale and an analysis of soil moisture changes. Our findings offer precise grid‐scale identification of the hydrologically unsustainable GA, providing more specific spatial guidance for ER implementation and adaptation in China's drylands.
Pediatric perforated appendicitis diagnosis based on the C-reactive protein/prealbumin ratio
Authors: Long Junshan , Zhang Jing , Chen Gong , Su Xiaoxia , Qiu Baowei , Dong Qi 
Published: March 2024

AbstractPediatric perforated appendicitis, prone to multiple complications, necessitates identifying potential serum biomarkers for early diagnosis and intervention. A cross-sectional study was conducted on patients under 16 with acute appendicitis, admitted to Hainan Women and Children’s Medical Center from January 2019 to July 2023. The patients were categorized into perforated and non-perforated groups. Among the 313 included patients, 106 (33.87%, 95% CI 28.59–39.14%) developed perforation. The C-reactive protein to prealbumin ratio (CPA) showed a significant difference between the perforated and non-perforated groups [6.63 (2.9–13.02) vs. 0.7 (0.11–2.18), p < 0.001]. The AUC of CPA on the ROC curve was 0.691 (95% CI 0.513–0.869, p = 0.084) in patients under 4. In patients aged 4–9, the sensitivity of CPA > 3 predicting perforation was 76.2%, with a specificity of 81.6%, and an AUC of 0.816 (95% CI 0.747–0.886, p < 0.001). For patients aged 9–16, the sensitivity of CPA > 2.2 predicting perforation was 85%, with a specificity of 85.7%, and an AUC of 0.919 (95% CI 0.859–0.979, p < 0.001). CPA > 3 and CPA > 2.2 can predict perforated appendicitis in patients aged 4–9 and 9–16, respectively.
An evolutionary parsimonious approach to estimate daily reference evapotranspiration
Authors: Ruiz-Ortega F. Javier , Clemente Eddie , Martínez-Rebollar Alicia , Flores-Prieto J. Jassón 
Published: March 2024

AbstractThe reference evapotranspiration (ETo) is an essential component in hydrological and ecological processes. The objective of this research is to develop an explicit model to estimate ETo only using commonly measurable meteorological parameters such as relative humidity, air temperature, and wind speed, where the measurements corresponding to solar radiation are omitted. The model was generated using Genetic Programming (GP), evaluated, and validated with reference data ETo using FAO56-PM. This reference data was obtained from different climates (warm-temperate and arid-warm) and latitudes, acquired from CIMIS stations in the state of California, United States, and the El Porvenir station in the state of Coahuila, located in north-central Mexico. After applying the proposed methodology, a total of 3754 results were generated, demonstrating a significant improvement in the estimation of ETo compared to the Hargreaves–Samani model. A particularly noteworthy result revealed that our approach outperformed the Hargreaves–Samani model in the training phase by 27%, and in the testing phase by 16%, on average. In order to achieve a generalized model, a dataset encompassing meteorological stations in two different climates (warm-temperate and arid-warm) and various latitudes was utilized. The obtained outcome unveiled a highly effective model for estimating ETo in diverse climatic contexts, eliminating the need for local adjustments. This model significantly surpassed the Hargreaves–Samani model, exhibiting superior performance by 17% during the training phase and 18% during the testing phase. These results conclusively underscore the capability of our approach to provide more accurate and reliable ETo estimates. These results conclusively underscore the capability of our approach to provide more accurate and reliable ETo estimates. Finally, to validate the model, four different datasets with climates similar to those used for model creation (warm-temperate, warm-arid) and different latitudes were employed. The validation stage results clearly indicate the superiority of our reference evapotranspiration ETo11 model over the Hargreaves–Samani model by 51% in warm-temperate climates. For the dataset with arid-warm climate, our model continued to show satisfactory results, surpassing the Hargreaves–Samani model by 8%. GP emerges as an innovative and effective alternative for simplified model development. This approach introduces a novel paradigm that facilitates the efficient development of models, standing out for its simplicity and effectiveness in generating solutions.