bluuebunny/crossref_metadata_2025_split huggingface dataset:
Job satisfaction, life satisfaction, and associated factors among hospital nurses: a cross-sectional study in Türkiye
Authors: Medeni Volkan , Medeni İrem , Altunay Gizem , Dikmen Asiye Uğraş , İlhan Mustafa Necmi 
Published: February 2025

Abstract
Job satisfaction strongly affects nurses’ life satisfaction and is directly affected by life satisfaction. Our study aimed to determine nurses’ life and job satisfaction, show their relationship, and evaluate the factors affecting them. This cross-sectional study was conducted in 2022 at a university hospital in Türkiye. The study population included all nurses working at the hospital for at least one month, and 920 nurses participated. Data were collected using a structured questionnaire, which consisted of sections on sociodemographic characteristics, job and life satisfaction, and factors related to the nursing profession. Job satisfaction was measured using the Index of Job Satisfaction, while life satisfaction was assessed with the Life Satisfaction Scale, both validated tools. Data collection occurred during periodic health examinations through face-to-face interviews. Most participants chose the nursing profession willingly and found it suitable for themselves. However, many reported dissatisfaction with their earnings. Higher job satisfaction was associated with older age, having children, good perceived health, shorter weekly working hours, willingly choosing the nursing profession and unit, and favorable working conditions and income. Similarly, life satisfaction was higher among those with good perceived health, fewer weekly working hours, willingly chosen profession and unit, and no smoking or chronic diseases. Supportive working conditions and adequate income strongly influenced both job and life satisfaction. A significant, positive, and moderate correlation was found between job and life satisfaction, highlighting their interconnectedness. These findings suggest that improving nurses’ working conditions, ensuring adequate income, and supporting healthier lifestyles could enhance job and life satisfaction. Enhancing working conditions is essential to improving nurses’ job satisfaction, which, in turn, positively impacts their overall life satisfaction. Policymakers should prioritize initiatives that address workplace challenges and foster a supportive environment for nurses.
Circularly-polarized 28-GHz antenna for next generations of communication systems
Authors: Elsharkawy Rania R. , Hussein Khalid. F. A. , Farahat Asmaa E. 
Published: February 2025

Abstract
A circularly-polarized (CP) printed antenna is proposed for millimeter-wave mobile communications. The antenna has a defected ground structure (DGS), and it operates at 28 GHz. The geometries of the antenna on the upper surface and the DGS are symmetric about a
$$45^\circ$$
-diagonal to produce perfect circular polarization. The antenna is fed through a three-stage microstrip line that acts as an impedance transformer for perfect matching of the antenna impedance to
$$50\,{\Omega\:}$$
at
$$28\:\text{G}\text{H}\text{z}$$
. The development of the antenna design is described in detail, starting with a square patch that is subjected to progressive geometrical modifications in the design stages to reach the final design of the patch antenna. The simulation results show that the antenna has a reflection coefficient magnitude of less than
$$-35\:\text{d}\text{B}$$
at an axial ratio of less than 0.5 dB at 28 GHz. The technique used to generate the radiated circular polarized waves is demonstrated by investigating the surface current on the printed patch at the resonant frequency. The primary objective of the proposed design is not to produce a high-gain antenna, but rather to produce a low-profile planar antenna to serve as a building block for CP antenna systems such as multiple-input-multiple-output (MIMO) antennas, beam steering, and beamforming antenna arrays operating at 28 GHz. The designed antenna is fabricated and subjected to experimental evaluation. The numerical simulation results and the practical measurements came in good consent from the impedance matching and axial ratio (AR) of the radiated circular polarized wave perspectives. The input impedance is matched to the feeding line over a 1-GHz band, from 27.5 GHz to 28.5 GHz. The radiated wave is circularly polarized with AR less than 3 dB over about 0.4 GHz band starting from 27.8 GHz to 28.2 GHz. The peak gain of the designed antenna is 7 dBi and the radiation efficiency exceeds 90% all over the band of impedance matching. The performance of the antenna is compared with those of other antenna designs presented in some recent publications.
N6-methyladenosine (m6A)-forming enzyme METTL3 controls UAF1 stability to promote inflammation in a model of colitis by stimulating NLRP3
Authors: Lai Yongqiang , Liu Junhao , Hu Xiao , Zeng Xiancheng , Gao Peng 
Published: February 2025

Abstract

Background
The rising incidence of ulcerative colitis (UC) in China poses a noticeable health challenge. This study aimed to assess the pivotal role of USP1-associated factor 1 (UAF1) in colitis. UC was induced in male C57BL/6 mice using 2.0% dextran sulfate sodium (DSS). In an in vitro model, RAW264.7 cells were exposed to 200 ng/ml of LPS + ATP. UAF1 expression level was evaluated in colonic tissues, macrophages, and serum samples using quantitative reverse transcription polymerase chain reaction (RT-qPCR). The study assessed weight, disease activity index (DAI) score, myeloperoxidase (MPO) activity, crypt length, inflammatory factors, and epithelial cell function in a mouse model of colitis treated with a UAF1 inhibitor. Microarray analysis identified potential UAF1 targets. Gene interference investigated NLR family pyrin domain containing 3 (NLRP3) involvement in UAF1-induced colitis inflammation. Immunoprecipitation, ubiquitination, and luciferase assays examined the effects of methyltransferase-like 3 (METTL3) methylation on the expression levels of NLRP3 and UAF1. UAF1 expression level was upregulated in colon tissues, RAW264.7 macrophages, and serum samples of colitis mice (P < 0.01). The UAF1 inhibitor (ML-323) enhanced weight and reduced DAI score in colitis mice (P < 0.01). It also decreased MPO activity and ulcer area, and restored crypt length (P < 0.01). UAF1 inhibitor improved epithelial cell function by suppressing NLRP3 activity (P < 0.01). UAF1 promoted inflammation in RAW264.7 macrophages via NLRP3 inflammasome induction (P < 0.01). UAF1 modulated NLRP3 protein expression, leading to reduced NLRP3 ubiquitination induced by LPS + ATP. The m6A-forming enzyme METTL3 enhanced UAF1 stability (P < 0.01) to facilitate UAF1 expression. The findings suggested that METTL3, as an m6A-forming enzyme, could regulate UAF1 mRNA, promoting inflammation in colitis through NLRP3 induction. Inhibiting UAF1 emerges as a potential therapeutic strategy for colitis.
Design and implementation of PLA/GO/metal oxide composites for CO2 sensing application
Authors: Amin Khaled S. , Yassin Mohamed M. , Abdallah Yahia M. , Alsayyad Yusuf M. , Mabied Ahmed F. , Elhaes Hanan , Ibrahim Medhat A. 
Published: February 2025

Abstract
This study investigates the modification of polylactic acid (PLA) by the incorporation of graphene oxide (GO) and metal oxides (ZnO and CuO), with the aim of developing efficient CO₂ sensors. Key properties, including total dipole moment (TDM), energy gap (ΔE), molecular electrostatic potential (MESP), and density of states (DOS), were calculated using density functional theory (DFT) to gain insight into the interactions between the composites and CO₂ gas. Experimental techniques such as X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), and optical confocal microscopy were used to validate the material composition and bonding mechanisms. The analysis revealed the presence of SiO₂ impurities in the PLA matrix, which could potentially affect the sensing behavior of the composite. The composites demonstrated effective CO₂ sensing capabilities in experimental tests. This combined theoretical and experimental approach demonstrates that PLA/GO/metal oxide composites offer significant potential for sustainable CO₂ sensing, contributing to air quality monitoring and greenhouse gas regulation.
The influence of cyclothymic and hyperthymic affective temperaments on glycemic control in patients with type 2 diabetes
Authors: Hargittay Csenge , Vörös Krisztián , Eőry Ajándék , László Andrea , Márkus Bernadett , Szabó Georgina , Tripolszky Bálint , Rihmer Zoltán , Gonda Xénia , Torzsa Péter 
Published: February 2025

Abstract
Affective temperaments are inherited parts of personality determining mood and activity, affecting the management of somatic conditions. We aimed to investigate the association between affective temperaments, depressive symptoms, and self-care (physical activity, smoking, alcohol consumption), and their effect on glycemic control, among patients with type 2 diabetes (T2DM) in general practice, in a cross-sectional study enrolling 338 consecutive patients from six primary care practices in Hungary. A self-administered questionnaire (history, anthropometric, socioeconomic, laboratory parameters), the Beck Depression Inventory (BDI), the Hamilton Anxiety Scale, and the Temperament Evaluation of Memphis, Pisa, Paris, and San Diego Autoquestionnaire were used. Cyclothymic affective temperament determined HbA1c levels in regression analysis (p = 0.002), and the BDI score (p = 0.048). In causal mediation analyses, cyclothymic affective temperament was directly associated with higher HbA1c (p = 0.008). Hyperthymic affective temperament was indirectly associated with lower HbA1c, mediated by BDI (p = 0.034). Depressive, anxious, and irritable affective temperaments, and lifestyle factors were not associated with HbA1c neither in regression nor in mediation analysis as direct or mediating factors. Among primary care patients with T2DM, cyclothymic temperament correlates with worse glycemic control, independently of depressive symptoms. Hyperthymic temperament reduces depressive symptoms, thereby improving glycemic control. Identifying affective temperaments may improve diabetes care.
Development of abnormal diagnosis and factory evaluation standards for RV reducer based on vibration characteristics
Authors: Wang Xin , Li Chunlei , Lin Suben 
Published: February 2025

Abstract
Vibration characteristics are important reference indicators for reflecting the overall performance of RV reducers. At present, there is no factory testing standard for vibration characteristics applicable to production enterprises in the industry. This study conducted vibration characteristic tests on RV40E reducers at different speed ratios. Through a large number of sample comparisons, suitable vibration characteristic factory testing standards for production enterprises were provided. Detailed on-site inspection standards have been developed based on research and analysis results for defective products such as eccentricity, gear defects, and detection errors. This standard can cover 90% of defect types within the factory. The samples are specific and executable. This study solves the problem of the lack of clear vibration detection standards in the industry. For the first time, such a detailed sample set of internal data within a company has been provided. It has extremely practical engineering application value and provides data reference for the development of RV reducer industry.
An Australian perspective on clinical, economic and regulatory considerations in emerging nanoparticle therapies for infections
Authors: Muir Benjamin W. , Payne Jennifer A. E. , Martin Jennifer H. , O’ Shea Riley , Rajesh Sarigama , Blackman Lewis D. , Shen Hsin-Hui , Heazlewood Chad , Bansal Vipul , Morgan Branwen 
Published: February 2025

Abstract
Antimicrobial resistance (AMR) poses a growing global health threat. Nanomedicine, combined with drug repurposing, may help extend the effective lifespan of current and new antimicrobials. This review, presents an Australian perspective on nanotechnology-based therapies, highlighting scientific and clinical challenges. Early consideration of the potential barriers to market access may help to accelerate research translation, regulatory approval and patient access to nano-antimicrobial (NAM) drugs for resistant pathogens, not only in Australia, but globally.
Validierung eines Entscheidungsbaums für das selektive Trockenstellen
von Milchkühen für ein digitales Expertensystem
Authors: Stoll Anna , Pichlmeier Alicia , Zerbe Holm , Onken Folkert , Gerke Julia Sophia , Grandl Florian , Ziegler Leonid , Martin Rainer 
Published: February 2025

ZusammenfassungIn Rahmen dieser Studie wurde ein aus der wissenschaftlichen Literatur
abgeleiteter Entscheidungsbaum zum selektiven Trockenstellen (ST), welcher
als Wissensbasis für ein digitales Expertensystem entwickelt wurde,
evaluiert. Der Entscheidungsbaum fusioniert algorithmische (anhand von
Zellzahlergebnissen) und kulturelle (anhand von Milchprobenbefunden)
Ansätze.Während einer zweijährigen Projektphase (August 2021–September 2023) wurde
das ST auf 19 Milchviehbetrieben in Süddeutschland entsprechend des
Entscheidungsbaumes durchgeführt, ohne dass spezifische Anforderungen an die
Herdeneutergesundheit der Betriebe vor Beginn gestellt wurden. Insgesamt
wurden 1369 Trockenstellbeobachtungen erfasst. Ausgewertet wurden die
Trockenstellfälle hinsichtlich Umsetzung der Empfehlungen, Zellgehalt bei
der ersten Milchleistungskontrolle nach der Kalbung, Anteil der
Neuinfektionen und Heilungen während der Trockenstehphase in Abhängigkeit
von der Umsetzung der Trockenstellempfehlung sowie des
Eutergesundheitsstatus der Herde.Über alle Betriebe wurden 38,4% der Kühe ohne ein antibiotisches
Trockenstellpräparat trockengestellt. Das Einsparpotenzial für Antibiotika
variierte stark zwischen den Betrieben (Range: 2,4–71,3%). In 75,9% der
Fälle konnte eine Trockenstellempfehlung bereits aufgrund der vorliegenden
Eutergesundheitsdaten erfolgen; nur bei etwa 25% der Kühe bedurfte die
Trockenstellempfehlung einer mikrobiologischen Untersuchung von
Viertelanfangsgemelksproben.Die Milchzellzahl nach der Trockenperiode lag bei Tieren, die ohne und mit
einem antibiotischen Langzeitpräparat trockengestellt wurden, im Mittel
unter 100 000 Zellen/ml. Die Anteile an Neuinfektionen und Heilungen während
der Trockenperiode unterschieden sich zwischen Tieren mit oder ohne
antibiotischem Trockenstellpräparat nicht signifikant.Die Ergebnisse zeigen, dass mit Hilfe des entwickelten Entscheidungsbaums das
ST in Milchviehbetrieben sicher durchgeführt werden kann, ohne die
Eutergesundheit zu gefährden. Somit kann dieser Entscheidungsbaum als
zuverlässige Wissensbasis für ein digitales Expertensystem zur Optimierung
des Trockenstellmanagements in Milchviehbetrieben dienen.
Studie für Patienten mit Tumoren beim Hippel-von-Lindau-Syndrom und Basket-Kohorte für solide Tumoren
Authors: Rexer H. , Kroiß Matthias , Bedke J. 
Published: February 2025

ZusammenfassungEine klinische Prüfung zu Phäochromozytomen, Paragangliomen, neuroendokrinen Pankreastumoren bei von Hippel-Lindau (VHL) Syndrom assoziierten Tumoren und Kohorte zu soliden Tumoren (AN 60/22 of AUO, LITESPARK-015).
Effect of magnetron sputtering parameters on the performance of synthesized Fe/Co–N–C catalysts
Authors: Li Tengfei , Yan Nongyang , Liu Quan , Wang Kun , Wu Zhengwei 
Published: February 2025

In this study, using magnetron sputtering technology, we successfully prepared Fe/Co–N–C thin film catalysts on the tip of a movable glassy carbon rotating disk electrode. By carefully adjusting the temperature, time, and power parameters during the preparation process, we synthesized three groups of catalysts with different characteristics. We undertook a thorough investigation to assess the influence of magnetron sputtering parameters on the electrochemical characteristics of the catalyst thin film, specifically designed for the oxygen reduction reaction (ORR). Our investigation involved a series of experiments, where we varied the temperature, time, and power settings to observe their effects on the catalysts’ characteristics and performance. The scanning electron microscopy examination revealed nuanced variations in the surface morphologies of the catalysts prepared under diverse parameters. To better comprehend the catalysts’ constitution and characteristics, we performed x-ray photoelectron spectroscopy analysis on a representative Fe/Co–N–C sample prepared at 600 °C for 60 min with a power setting of 20 W. The test results showed that the catalyst was rich in active nitrogen elements, and active sites such as C–N, Fe–N, and Co–N had significant catalytic effects on the ORR. The electrochemical performance testing results showed that the catalysts’ ORR performance exhibited a quadratic function trend with changes in experimental parameters. In particular, as the temperature, time, and power increased, the ORR performance of the catalyst gradually increased, reaching an optimal value before beginning to decrease.
For a flat Universe,

C
P

/

C
V

=
−
q

: another coincidence in Cosmology?
Authors: Saha Somnath , Saha Subhajit , Mahata Nilanjana 
Published: February 2025

Abstract
This paper deals with gravitational thermodynamics on the dynamical apparent horizon of an Friedmann–Lemaitre–Robertson–Walker (FLRW) Universe with dissipation. The dissipation is assumed to arise due to adiabatic gravitational particle creation. For the thermodynamic study, we consider the Bekenstein–Hawking formalism and also assume a nonzero curvature κ for a general study. In particular, we study the unified first law, the generalized second law, and thermodynamic stability in our model. The specific heat capacities are taken into account for the study of thermodynamic stability. Our study reveals a nice result! The ratio of the specific heat capacity at constant pressure and that at constant volume in a flat FLRW Universe with dissipation is nothing but the negative of the deceleration parameter. In classical thermodynamics, this ratio is known as the isentropic expansion factor or (for ideal gases) the adiabatic index. A more interesting fact that has come to light is that this relation is independent of the cosmological model used. So, this is actually a generic result in big bang cosmology. We discuss the implications of this result on the evolution of the Universe. Finally, we determine the constraints on the effective equation of state and the particle creation rate which guarantees thermodynamic stability in our model.
A close-up photogrammetry method with additional distance and angle observations for particle accelerators measurement and simulation experiments
Authors: Wang Tong , Zhang Rui , Liang Jing , Xing Yubo , Li Xiao , Ma Na , Wang Xiaolong , Zhou Weihu 
Published: February 2025

Abstract
Laser trackers or total stations are most widely used in particle accelerator measurement with high measurement accuracy but low efficiency. Close range photogrammetry has great characteristics of both high accuracy and efficiency, other than that, it enables non-contact observation, which is ideal for high-radiation accelerator measurement environments. In order to obtain the absolute position of the measurement area using close range photogrammetry, the position and attitude of the camera and the scale of the photo must be accurately determined at the moment of observation. A new three-dimensional visual measurement equipment is developed in this paper, which can obtain image, distance, and angle data at the same time. Unified adjustment of all three types of observations can more accurately determine position, attitude and scale datum. We used simulated data for experimental validation, comparing the new algorithm with another two algorithms: the traditional fixed point constraint and centroid datum constraint. The experiment results show that it can significantly improve positioning accuracy by adding distance and angle observations. The three-dimensional coordinate accuracy can reach up to 0.073mm, while the accuracy of the other two algorithms can only be achieved 0.137mm and 0.153mm, the improvement is approximately 52.4%. Especially in the forward direction of the tunnel, the positioning accuracy is significantly improved, with an improvement of about 67.8 %.
Connection formulae for the radial Toda equations I
Authors: Guest Martin A , Its Alexander R , Kosmakov Maksim , Miyahara Kenta , Odoi Ryosuke 
Published: February 2025

Abstract
This paper is the first in a forthcoming series of works where the authors study the global asymptotic behavior of the radial solutions of the 2D periodic Toda equation of type An
. The principal issue is the connection formulae between the asymptotic parameters describing the behavior of the general solution at zero and infinity. To reach this goal we are using a fusion of the Iwasawa factorization in the loop group theory and the Riemann-Hilbert nonlinear steepest descent method of Deift and Zhou which is applicable to 2D Toda in view of its Lax integrability. A principal technical challenge is the extension of the nonlinear steepest descent analysis to Riemann-Hilbert problems of matrix rank greater than 2. In this paper, we meet this challenge for the case n = 2 (the rank 3 case) and it already captures the principal features of the general n case.
Research on the particles release of Ti-Zr-V thin film coatings
Authors: Zhang Hao , Wang Sihui , Wei Jianping , Chang Renchao , Li Lei , Lin Hanwen , Zhu Xiaoxiao , Zhao Feng , Wei Wei 
Published: February 2025

Abstract
Non-evaporable getter (NEG) films have been widely used in
particle accelerators, especially in diffraction limited storage
ring (DLSR) to achieve efficient pumping in narrow vacuum
chambers. Due to the advantage of NEG films to achieve distributed
pumping and barrier to mitigate hydrogen permeation from vacuum
chamber, they could be the candidate processing of vacuum chambers
near superconducting radio frequency cavities (SRFC), to help to get
ultrahigh vacuum (UHV) environment with minimal hydrogen partial
pressure. Additionally, the particle release characteristics of NEG
films should be investigated carefully to ensure a particle free
(PF) vacuum environment in high acceleration gradient SRFC, in which
the particles on surface would cause field emission and even the
quench of SRFC. For this purpose, approximately 1 μm thick
columnar Ti-Zr-V thin film had been deposited on OFC and CuZr
chambers and the microstructure were characterized. Stringent
cleaning and assembly procedures had been implemented to measure
particles release from Ti-Zr-V thin film coatings by the particle
counter (PC) after several activations. The results indicate that
very few particles were released from the NEG film coatings, even
under high-pressure filtered and ionized N2 blowing, with the
release quickly tending towards zero due to the strong adhesion
between the NEG film and the substrate. Besides, the findings
demonstrate a gradual decrease in the quantities of particles
released from the NEG film coatings as the number of activations
increases. Based on these particles release characteristics, this
study demonstrates the potential application of NEG film coatings in
particle-sensitive environments, including particle accelerators
with SRFC.