bluuebunny/crossref_metadata_2025_split huggingface dataset:
Comparative study of reference evapotranspiration estimation models based on machine learning algorithm: a case study of Zhengzhou City
Authors: Niu Chaojie , Jian Shengqi , Liu Shanshan , Liu Chengshuai , Soomro Shan-e-hyder , Hu Caihong 
Published: July 2023

Abstract

Reference evapotranspiration (ET0) is an important parameter to characterize the hydrological water cycle and energy balance. An extremely heavy rainstorm occurred in Zhengzhou City, Henan Province on 20 July 2021, causing heavy casualties and economic losses. One of the important reasons for this rainstorm was abnormal water circulation. The purpose of this study is to estimate ET0 accurately and avoid extreme disasters caused by abnormal water cycles. This study compared and analyzed the accuracy and robustness of ET0 prediction based on the improved Levenberg–Marquardt (L-M) model based on artificial neural network and the genetic algorithm-backward neural network (GA-BP) model. The model uses seven weather stations in Zhengzhou, including mountain climate and plain climate. By utilizing the Pearson correlation analysis technique, six distinct input scenarios were identified, and the efficacy of the model was assessed using evaluation metrics, including RMSE, MAE, NSE, and SI. The results show that the estimation accuracy of the L-M model is better than that of the GA-BP model; when the number of input meteorological parameters is the same, the combined simulation effect including wind speed is the best; the R2 of L-M3 and L-M4 are 0.9285 and 0.9675, respectively; models can accurately estimate ET0 with limited data.
Does each Component of Reactive Oxygen Species have a Dual Role in
the Tumor Microenvironment?
Authors: Hao Siyu , Cai Dan , Gou Shuang , Li Yan , Liu Lin , Tang Xiaolong , Chen Yu , Zhao Yueshui , Shen Jing , Wu Xu , Li Mingxing , Chen Meijuan , Li Xiaobing , Sun Yuhong , Gu Li , Li Wanping , Wang Fang , Cho Chi Hin , Xiao Zhangang , Du Fukuan 
Published: July 2023

:
Reactive oxygen species (ROS) are a class of highly reactive oxidizing
molecules, including superoxide anion (O2
•−) and hydrogen peroxide (H2O2), among
others. Moderate levels of ROS play a crucial role in regulating cellular signaling and
maintaining cellular functions. However, abnormal ROS levels or persistent oxidative
stress can lead to changes in the tumor microenvironment (TME) that favor cancer development.
This review provides an overview of ROS generation, structure, and properties,
as well as their effects on various components of the TME. Contrary to previous studies,
our findings reveal a dual effect of ROS on different components of the TME, whereby
ROS can either enhance or inhibit certain factors, ultimately leading to the promotion or
suppression of the TME. For example, H2O2 has dual effects on immune cells and non--
cellular components within the TME, while O2
•− has dual effects on T cells and fibroblasts.
Furthermore, each component demonstrates distinct mechanisms of action and
ranges of influence. In the final section of the article, we summarize the current clinical
applications of ROS in cancer treatment and identify certain limitations associated with
existing therapeutic approaches. Therefore, this review aims to provide a comprehensive
understanding of ROS, highlighting their dual effects on different components of the
TME, and exploring the potential clinical applications that may pave the way for future
treatment and prevention strategies.
Lesser-Known Aspects of the History of the Small Union
Authors: Vladu Mircea 
Published: July 2023

Abstract
Those who are interested in knowing the true history of the Romanian people should look for the truth in the archives, not in works written by certain party historians or by some politicians, who, in order to promote the interests of the party they serve, have hidden or distorted and continue to hide or distort, deliberately, the historical truth. At the same time, certain episodes in the history of Romanians have been distorted from their noble purpose by petty foreign interests, mercenaries, participants in coups, plotters, spies, opportunists, frivolous people, etc. The opportunists were the most dangerous because they cleverly disguised their intentions and were meticulously prepared to jump from one side to the other at key moments in the course of actions, on whose support they were relying heavily. One of the important episodes in the history of the Romanians, where the aspects mentioned above were manifested, was the Little Union, which was for the Romanians and their leaders of good faith, one of the most uplifting moments in our troubled history, about which I wish to speak below, using as research method which aims at analyzing specific documents and focusing on a certain extent on the answer to the question: “Was it or was it not Mihai Kogălniceanu a man who played on both sides of the in the process of electing Alexandru Ioan Cuza as a ruler of the Romanian Principalities?”
Calculating and Evaluating Doses of Dental X-Rays CT Cone Beam
Authors: Le Thi Hong Dao , Nguyen Hoang Tung , Ly Anh Tu 
Published: July 2023

According to recent reports, there is an alarming reality in Vietnam today that about 90% of people have dental problems, mainly tooth decay. Dental diseases cause discomfort for patients and a loss of confidence in communication. Therefore, the demand for dental exams and treatments is increasing day by day.X-rays have long been used to treat dental diseases and are playing an increasingly important role in dentistry. The creation of cone-beam computer tomography (CTCB) has brought many benefits to users. This thesis mainly presents how to calculate the DAP number (Dose Area Product) at CTCB Orthophos and convert the unit of DAP (Gy.cm2) to the unit of the effective dose (mSv).The results obtained from nearly 100 CTCB scans show that the effective dose of the instrument Orthophos is about 0.2 mSv, which is satisfactory for the requirements for radiation safety even with the largest FOV.The study was carried out under the supervision of Denstply Sirona for the purpose of warning before taking, helping doctors (technicians) to manage the problems related to the imaging process and to minimize the radiation dose radiation on the patient, and determine the radiation on the patient in practice at the same time.
Brain rhythmic abnormalities in convalescent patients with anti-NMDA receptor encephalitis: a resting-state EEG study
Authors: Wu Dengchang , Jiang Lin , He Runyang , Chen Baodan , Yao Dezhong , Wang Kang , Xu Peng , Li Fali 
Published: July 2023

ObjectiveAnti-N-methyl-D-aspartate receptor encephalitis (anti-NMDARE) is autoimmune encephalitis with a characteristic neuropsychiatric syndrome and persistent cognition deficits even after clinical remission. The objective of this study was to uncover the potential noninvasive and quantified biomarkers related to residual brain distortions in convalescent anti-NMDARE patients.MethodsBased on resting-state electroencephalograms (EEG), both power spectral density (PSD) and brain network analysis were performed to disclose the persistent distortions of brain rhythms in these patients. Potential biomarkers were then established to distinguish convalescent patients from healthy controls.ResultsOppositely configured spatial patterns in PSD and network architecture within specific rhythms were identified, as the hyperactivated PSD spanning the middle and posterior regions obstructs the inter-regional information interactions in patients and thereby leads to attenuated frontoparietal and frontotemporal connectivity. Additionally, the EEG indexes within delta and theta rhythms were further clarified to be objective biomarkers that facilitated the noninvasive recognition of convalescent anti-NMDARE patients from healthy populations.ConclusionCurrent findings contributed to understanding the persistent and residual pathological states in convalescent anti-NMDARE patients, as well as informing clinical decisions of prognosis evaluation.
Blockage of S100A8/A9 ameliorates septic nephropathy in mice
Authors: Shi Wei , Wan Tian-Tian , Li Hui-Hua , Guo Shu-Bin 
Published: July 2023

Septic acute kidney injury (AKI) is the commonest cause of complication of sepsis in intensive care units, but its pathophysiology remains unclear. Calprotectin (S100A8/A9), which is a damage-associated molecular patterns (DAMPs) molecule, exerts a critical role in modulating leukocyte recruitment and inflammatory response during various diseases. However, role of S100A8/A9 in septic AKI is largely unknown. In this research, Septic AKI was triggered by cecal ligation and puncture (CLP) operation in wild-type mice, which treated with or without an S100A9 inhibitor, Paquinimod (Paq, 10 mg/kg) that prevents S100A8/A9 to bind to Toll-like receptor 4 (TLR4). Renal function, pathological changes, cell death, and oxidative stress were evaluated. Our research indicated that the mRNA and protein expression of S100A9 are time-dependently elevated in the kidney following CLP. Moreover, the administration of Paq for 24 h significantly improved CLP-induced renal dysfunction and pathological alterations compared with vehicle treatment in mice. These beneficial effects were associated with the inhibition of CLP-triggered renal tubular epithelial cell apoptosis, inflammation, superoxide production, and mitochondrial dynamic imbalance. What’s more, we further confirmed the above findings by cell co-culture experiments. Our study demonstrates that S100A9 is a prominent protein to lead to septic AKI, and the selective inhibition of S100A9 could represent a new therapeutic approach which can treat septic AKI.
Effect of Exogenous Hormone on R-Spondin 2 (Rspo2) and R-Spondin 3 (Rspo3) Gene Expression and Embryo Development in Chinese Soft-Shelled Turtle (Pelodiscus sinensis)
Authors: Cao Jizeng , Zhou Tong , Chen Guobin , Zou Guiwei , Liang Hongwei 
Published: July 2023

The Chinese soft-shelled turtle, Pelodiscus sinensis, is an important aquaculture species in China that exhibits distinct sexual dimorphism; male individuals are economically more valuable than females. In vertebrates, several R-spondin family proteins have been associated with sex differentiation mechanisms; however, their involvement in P. sinensis sex differentiation is unclear. Exogenous hormones such as estradiol (E2) also influence the sex differentiation of P. sinensis and induce sexual reversal. In the present study, we investigated the effects of E2 on the embryonic development of P. sinensis and the expression of R-spondin 2 (Rspo2) and R-spondin 3 (Rspo3). We amplified P. sinensis Rspo2 and Rspo3 and analyzed their expression patterns in different tissues. Comparative analyses with protein sequences from other species elucidated that P. sinensis RSPO2 and RSPO3 sequences were conserved. Moreover, phylogenetic analysis revealed that P. sinensis RSPO2 and RSPO3 were closely related to these two proteins from other turtle species. Furthermore, Rspo2 and Rspo3 were highly expressed in the brain and gonads of adult turtles, with significantly higher expression in the ovaries than in the testes (p < 0.05). We also evaluated the expression of Rspo2 and Rspo3 after the administration of three concentrations of E2 (1.0, 5.0, and 10.0 mg/mL) to turtle eggs during embryonic development. The results revealed that E2 upregulated Rspo2 and Rspo3, and the expression trends varied during different embryonic developmental stages (stages 13–20). These findings lay the groundwork for future investigations into the molecular mechanisms involved in the sex differentiation of Chinese soft-shelled turtles.
Efficient diameter enlargement of bulk AlN single crystals with high structural quality
Authors: Hartmann Carsten , Kabukcuoglu Merve Pinar , Richter Carsten , Klump Andrew , Schulz Detlev , Juda Uta , Bickermann Matthias , Hänschke Daniel , Schröder Thomas , Straubinger Thomas 
Published: July 2023

Abstract
We present the growth of bulk AlN crystals by physical vapor transport and the structural characterization by various X-ray techniques and defect-selective etching. Starting from native AlN seeds with 8 mm in diameter we show a fast increase of the crystal diameters with expansion angles of about 45°. Only two subsequent grown seeded crystals are required to reach crystals up to 34 mm in diameter. The threading dislocation density is below 104 cm−2. The process outlines a shortcut path to industrially relevant AlN crystal diameters compared to all other published expansion processes for bulk AlN crystals so far.
Enhancing SSVEP Identification with Less Individual Calibration Data Using Periodically Repeated Component Analysis
Authors: Ke Yufeng , Liu Shuang , Ming Dong 
Published: July 2023

<p> Spatial filtering and template matching-based methods are commonly used to identify the stimulus frequency from multichannel EEG signals in steady-state visually evoked potentials (SSVEP)-based brain-computer interfaces (BCIs). However, these methods require sufficient calibration data to obtain reliable spatial filters and SSVEP templates, and they underperform in SSVEP identification with small-sample-size calibration data, especially when a single trial of data is available for each stimulus frequency. In contrast to the state-of-the-art task-related component analysis (TRCA)-based methods, which construct spatial filters and SSVEP templates based on the inter-trial task-related components in SSVEP, this study proposes a method called periodically repeated component analysis (PRCA), which constructs spatial filters to maximize the reproducibility across periods and constructs synthetic SSVEP templates by replicating the periodically repeated components (PRCs). We also introduced PRCs into two improved variants of TRCA. Performance evaluation was conducted using a self-collected 16-target dataset and a public 40-target dataset. The proposed methods show significant improvements with less training data and can achieve comparable performance to the baseline methods with 5 trials by using 2 or 3 training trials. Using a single trial of calibration data for each frequency, the PRCA-based methods achieved the highest average accuracies of over 95% and 90% with a 1-s data length and maximum average information transfer rates of 198.8±57.3 bits/min and 191.2±48.1 bits/min for the two data sets, respectively. Our results demonstrate the effectiveness and robustness of PRCA-based methods for SSVEP identification with reduced calibration effort and suggest its potential for practical applications of SSVEP-BCIs. </p>
CMOS Spiking Neuron Incorporating Post-Inhibitory Rebound Excitation
Authors: Hore Archita , Bandyopadhyay Sharba , chakrabarti saswat 
Published: July 2023

<p> This work shows the simulation of a CMOS spiking neuron model that can mimic the behaviour of a biological neuron for both hyperpolarizing and depolarizing currents. The proposed schematic design can exhibit the post-inhibitory rebound excitation (PIRE) or anode break excitation (ABE) phenomena. The model has multiple control parameters for regulating the operation of a neuron. It is shown that the electrophysiological properties of a neuron, such as spiking frequency, spike height, resting potential, and mean inter-spike interval, can be varied by adjusting two control parameters of the developed schematic. Schematic of excitatory and inhibitory synapses to link two neuronal models are designed using CMOS. Average power dissipation and energy consumed per spike of the schematic designs are examined. Furthermore, PIRE is demonstrated for a strong inhibitory synaptic current. The significance of including PIRE in such a neuronal model is shown by its necessity in the generation of persistent activity in the network, which mimics the realization of working memory or attention. A network of such neuronal designs with the appropriate realization of the synaptic region has implications for human-to-machine interfaces and pattern recognition problems </p>
Reinterpreting the Polluted White Dwarf SDSS J122859.93+104032.9 in Light of Thermohaline Mixing Models: More Polluting Material from a Larger Orbiting Solid Body
Authors: Dwomoh Arianna M. , Bauer Evan B. 
Published: July 2023

Abstract
The polluted white dwarf (WD) system SDSS J122859.93+104032.9 (SDSS J1228) shows variable emission features interpreted as originating from a solid core fragment held together against tidal forces by its own internal strength, orbiting within its surrounding debris disk. Estimating the size of this orbiting solid body requires modeling the accretion rate of the polluting material that is observed mixing into the WD surface. That material is supplied via sublimation from the surface of the orbiting solid body. The sublimation rate can be estimated as a simple function of the surface area of the solid body and the incident flux from the nearby hot WD. On the other hand, estimating the accretion rate requires detailed modeling of the surface structure and mixing in the accreting WD. In this work, we present MESA WD models for SDSS J1228 that account for the thermohaline instability and mixing in addition to heavy element sedimentation to constrain accurately the sublimation and accretion rate necessary to supply the observed pollution. We derive a total accretion rate of

M

̇

acc

=
1.8
×

10

11

g

s

−
1

, several orders of magnitude higher than the

M

̇

acc

=
5.6
×

10

8

g

s

−
1

estimate obtained in earlier efforts. The larger mass accretion rate implies that the minimum estimated radius of the orbiting solid body is

r

min

= 72 km, which, although significantly larger than prior estimates, still lies within the upper bounds (a few hundred kilometers) for which the internal strength could no longer withstand the tidal forces from the gravity of the WD.
FAST Polarization Mapping of the Supernova Remnant VRO 42.05.01
Authors: Xiao Li , Zhu Ming , Sun Xiao-Hui , Jiang Peng , Sun Chun 
Published: July 2023

Abstract
We have obtained the polarization data cube of the supernova remnant (SNR) VRO 42.05.01 at 1240 MHz using the Five-hundred-meter Aperture Spherical Radio Telescope (FAST). Three-dimensional Faraday synthesis is applied to the FAST data to derive the Faraday depth spectrum. The peak Faraday depth map shows a large area of enhanced foreground rotation measure (RM) of ∼60 rad m−2 extending along the remnant’s “wing” section, which coincides with a large-scale H i shell at −20 km s−1. The two depolarization patches within the “wing” region with RMs of 97 rad m−2 and 55 rad m−2 coincide with two H i structures in the H i shell. Faraday screen model fitting on the Canadian Galactic Plane Survey 1420 MHz full-scale polarization data reveals a distance of (0.7–0.8)d
SNR in front of the SNR with enhanced regular magnetic field there. The highly piled-up magnetic field indicates that the H i shell at −20 km s−1 could originate from an old evolved SNR.
Magnetic-reconnection-driven Turbulence and Turbulent Reconnection Acceleration
Authors: Liang Shi-Min , Zhang Jian-Fu , Gao Na-Na , Xiao Hua-Ping 
Published: July 2023

Abstract
This paper employs an MHD-PIC method to perform numerical simulations of magnetic-reconnection-driven turbulence and turbulent reconnection acceleration of particles. Focusing on the dynamics of the magnetic reconnection, the properties of self-driven turbulence, and the behavior of particle acceleration, we find the following: (1) When reaching a statistically steady state of the self-driven turbulence, the magnetic energy is almost released by 50%, while the kinetic energy of the fluid increases by no more than 15%. (2) The properties of reconnection-driven turbulence are more complex than the traditional turbulence driven by an external force. (3) The strong magnetic field tends to enhance the turbulent reconnection efficiency to accelerate particles more efficiently, resulting in a hard spectral energy distribution. Our study provides a particular perspective on understanding turbulence properties and turbulent-reconnection-accelerated particles.
ALMA High-frequency Long-baseline Campaign in 2019: Band 9 and 10 In-band and Band-to-band Observations Using ALMA’s Longest Baselines
Authors: Maud Luke T. , Asaki Yoshiharu , Nagai Hiroshi , Tsukui Takafumi , Hirota Akihiko , Fomalont Edward B. , Dent William R. F. , Takahashi Satoko , Phillips Neil 
Published: July 2023

Abstract
The Atacama Large Millimeter/submillimeter Array high-frequency long-baseline campaign in 2019 (HF-LBC-2019) was arranged to undertake band 9 (690 GHz) and 10 (850 GHz) observations using the longest 16 km baselines in order to explore calibration feasibility and imaging capabilities. Observations were arranged using close calibrators between 0° and 4° from the target point-source quasars (QSOs) to also explore subtle effects of calibrator separation angle. A total of 13 observations were made, five using standard in-band observations and eight using the band-to-band (B2B) observing mode, where phase solutions are transferred from a lower frequency band. At bands 9 and 10, image angular resolutions as high as 7 and 5 mas were achieved, respectively. Both in-band and B2B experiments were successful in imaging the target QSOs but with varying degrees of quality. Target image coherence varied between 0.14 and 0.79, driven by the calibrator separation angle and effectiveness of phase referencing despite observing in correct stability conditions. We conclude that the phase rms conditions and calibrator selection, specifically separation angle from the target, must carefully be considered prior to observing in order to minimize imaging defects. For bands 9 and 10, in order to achieve a coherence >0.7 such that the image structure and source flux can be regarded as suitably accurate, a 1° separated calibrator should be used while the phase rms over the phase switching cycle time should ideally be <30°.