bluuebunny/crossref_metadata_2025_split huggingface dataset:
Analysis of Repetitive Positioning Accuracy of Parallel Mechanisms Based on Monte Carlo Method
Authors: Liang Fengchao , Huang Gang , Tan Shuang , Lin Zhe , Shi Zhicheng 
Published: February 2024

Abstract
Based on the inverse kinematics model of the Stewart parallel mechanism, a motion platform pose error model was constructed through differential transformation. The error model shows that the motion platform pose error comes from the length error of 6 struts and the position error of 12 hinge centers, with a total of 42 error terms. Monte Carlo simulation was used to analyze the effects of struts length error on the pose error of the moving platform. The results show that when the length error of the struts follows a normal distribution, the posture error of the moving platform approximately follows a normal distribution. Monte Carlo simulation is a highly effective error analysis method that can analyze the error distribution pattern of the mechanism before processing and assembly, which provides a method for error analysis of Stewart parallel mechanisms.
Study on the Blasting Effect of Radial Uncoupled Parameters on Limestone
Authors: Liu Erping 
Published: February 2024

Abstract
To analyze the influence of radial decoupling parameters on the blasting effect of limestone, finite element analysis was established using ANSYS/ls-dyna to analyze the effects of different radial decoupling coefficients and different media on blasting. Research has found that limestone has more cracks and more pronounced cracking when air is uncoupled. Under the condition of air decoupling, the stress waves in the rock mass are more concentrated and have higher energy, while under the condition of water decoupling, the stress waves in the rock mass diffuse faster, have a larger range of action, and have lower energy. Reasonably increasing the radial decoupling coefficient can effectively reduce damage around the borehole. For limestone formations, it is recommended to use an air decoupling method during construction, with a radial decoupling coefficient kd=2.0 for the borehole.
Wakefields excited in the FCC-ee collimation system
Authors: Behtouei M. , Carideo E. , Zobov M. , Migliorati M. 
Published: February 2024

Abstract
The purpose of this paper is to calculate the longitudinal
and transverse wakefields of the FCC collimators using the
electromagnetic codes ECHO3D and IW2D. We cross-checked our results
using CST particle studio for long bunches, and found them to be in
good agreement. The obtained results show that the collimators give
one of the highest contributions to the overall FCC-ee wake
potentials. In particular, using the code PyHEADTAIL, we have found
that the geometric contribution of the collimators' wakefield
reduces significantly the transverse mode coupling instability
threshold. Therefore, it is imperative to explore and implement
solutions that effectively mitigate this wakefield source.
Editorial announcements and information — ICFA Beam Dynamics Newsletter No. 85
Authors: Cai Yunhai , Biagini Maria Enrica 
Published: February 2024

Abstract
This is a general information article of the ICFA Beam
Dynamics Newsletter No. 85. It contains foreword from the
Editor-in-Chief and the issue editor, a workshop and conference
report section, a recent Ph.D. thesis section, a forthcoming beam
dynamics events section, and a section of announcements from the
beam dynamics panel.
Luminosity performance of SuperKEKB
Authors: Zhou D. , Ohmi K. , Funakoshi Y. , Ohnishi Y. 
Published: February 2024

Abstract
Since April 2020, the SuperKEKB has been operating with the
crab waist scheme. The luminosity record achieved in June 2022 was
4.71 × 1034 cm-2 s-1, which overtook
its predecessor KEKB by more than a factor of 2. The beam-beam
interaction plays a key role in causing vertical blowup and
consequently limiting the luminosity performance of SuperKEKB. In
this paper, we examine luminosity tunings under the influence of
beam-beam effects and review the luminosity performance of SuperKEKB
with the crab-waist operation from 2020 to 2022.
Collimation simulations for the FCC-ee
Authors: Abramov A. , Broggi G. , Bruce R. , Carlier F. , Hofer M. , Iadarola G. , Nevay L.J. , Pieloni T. , Rakic M. , Redaelli S. , White S.M. 
Published: February 2024

Abstract
The collimation system of the Future Circular Collider,
operating with leptons (FCC-ee), must protect not only the
experiments against backgrounds, but also the machine itself from
beam losses. With a 17.8 MJ stored energy of the electron and
positron beams, they are highly destructive, and beam losses risk to
cause damage or a quench of superconducting elements. Accurate
collimation simulation tools and models are needed to design the
collimation system and optimize the collimation performance,
including magnetic tracking, synchrotron radiation and optics
tapering, as well as particle-matter interactions. As no existing
code was found that incorporated all these features, a new
simulation software tool has been developed. The tool is based on an
interface between a particle tracking engine, pyAT or Xtrack, and a
Monte-Carlo particle-matter interaction engine for collimator
scattering, BDSIM, which is based on Geant4. Results from a
simulation of edge scattering from a beam halo collimator in the
FCC-ee are presented to demonstrate the capabilities of the tool.
Development of a digital low-level RF system for the STCF
Authors: Xie Chunjie , Xiong Ziyu , Zhang Ailin , Zhou Zeran , Luo Qing 
Published: February 2024

Abstract
With the development of particle physics, higher
requirements are put forward for the brightness and energy of the
collider. A new collider — the Super Tau-Charm Facility (STCF) —
is under study in China. To meet the high acquirement of the quality
of the beam, a digital low-level RF (LLRF) system that achieves high
stability plays a critical role as a part of the microwave system of
Linacs. This paper introduces the design of a digital LLRF system
that works in the S-band (2856 MHz) as required by Linacs of the
STCF. The system architecture and hardware design as well as the
control algorithms and software design are discussed and tested. The
system includes a signal source, a frequency synthesis system and an
IF signal processor. The phase noise of the signal source is as low
as 20.3 fs, and the low-level IF signal processor adopts amplitude
and phase control by a PI-type controller. They jointly realize
ultra-low phase noise signal output. The table experiments show that
the short-term amplitude and phase stability of the system is better
than 0.01% and 0.01°, respectively. The beam experiments
show that the closed-loop phase stability in the cavity is about
0.1°. The results prove that the LLRF system meets the
requirement of the STCF.
The injector design for STCF in China
Authors: Zhang Ailin , Xu Xin , Pei Guoxi , Xu Lechen , Xiong Zijian , Peng Haiping , Luo Qing 
Published: February 2024

Abstract
A new generation electron-positron collider — the Super
Tau-Charm Facility (STCF) — has been proposed in China. The STCF
will have a luminosity greater than 0.5 × 1035 cm-2 s-1 and a center-of-mass energy range of 2 to
7 GeV. Injectors are an essential component of circular
colliders, particularly positron generating systems. The proposed
STCF injector, Linac, accelerates both electrons and positrons from
1.0 GeV up to 3.5 GeV with a high intensity of 1.5 nC per bunch
for Tau-Charm research. An injector with a high-energy
electron-target positron production system was designed. The design
baseline of the STCF injector Linac, positron source, and damping
ring have been carried out in this paper.
Associations of long-term exposure to ambient sulfur dioxide, carbon monoxide, ozone, and benzene with risk of incident chronic kidney disease in the UK
Authors: Zhang Feifei , Liu Yuhao , Yang Chao , Wang Fulin , Zhang Luxia 
Published: February 2024

Abstract
Limited studies have examined associations of gaseous air pollutants exposure with chronic kidney disease (CKD) in Europe. This study aimed to calculate the relationships between long-term exposure to ambient sulfur dioxide (SO2), carbon monoxide (CO), ozone (O3), and benzene and CKD in the UK. We included 502 369 participants from the UK biobank cohort. Associations of SO2, CO, O3, and benzene with CKD were estimated using Cox proportional hazards model. The shape of the exposure-response association between each air pollutant and CKD was then depicted using the shape constrained health impact function. We finally estimated the incidence of CKD attributable to each air pollutant by linking the constructed exposure-response association to the 2019 Global Burden of Disease data. Our results suggested SO2, high O3 days (daily max 8 hr O3 concentration > 120 µg m−3), CO, and benzene were positively associated with the risk of incident CKD. The hazard ratios (HRs) of CKD for SO2, CO, and benzene were 1.058 (95% CI: 1.039–1.078), 1.003 (95% CI: 1.001–1.005), and 1.619 (1.433–1.829) for every 1 μg m−3 increase in the concentration, respectively. For high O3 days, the HR of CKD was 1.044 (95% CI: 1.032–1.056) for every 1 d increase, but correlation to O3 concentration did not reach the statistical significance in the time-varying model. The risk of CKD increased non-linearly with increasing SO2, high O3 days, and CO, and linearly with increasing benzene. We estimated that 7.9%, 16.0%, 8.0% of incident CKD cases in the UK in 2021 could be attributed to exposure to SO2, O3, and benzene, respectively. We concluded that exposure to SO2, CO, O3, and benzene were all positively associated with increased CKD risk. Our findings highlight the importance of considering air pollution while making strategies targeting on CKD management.
Impact of marine carbon removal on atmospheric CO2
Authors: Nuterman Roman , Jochum Markus 
Published: February 2024

Abstract
A computer simulation of Earth’s climate is used to study if marine carbon removal will lead to a reduced atmospheric carbon dioxide concentration, and if there are potential secondary impacts on marine life and chemistry. We find that for stationary carbon removal plants the ocean cannot supply sufficient carbon rich water to allow a meaningful reduction of atmospheric CO2. This also means that outside the location of carbon removal there is no noticeable impact on plankton concentrations. It can be speculated that putting carbon removal plants on ships would lead to a significant increase in removal efficiency, although the engineering and energy aspects of this approach would need to be investigated.
Average spectral density of multiparametric Gaussian ensembles of complex matrices
Authors: Gayas Ansari Mohd , Shukla Pragya 
Published: February 2024

Abstract
A statistical description of part of a many body system often requires a non-Hermitian random matrix ensemble with nature and strength of randomness sensitive to underlying system conditions. For the ensemble to be a good description of the system, the ensemble parameters must be determined from the system parameters. This in turn makes its necessary to analyze a wide range of multi-parametric ensembles with different kinds of matrix elements distributions. The spectral statistics of such ensembles is not only system-dependent but also non-ergodic as well as non-‘stationary’. A change in system conditions can cause a change in the ensemble parameters resulting an evolution of the ensemble density and it is not sufficient to know the statistics for a given set of system conditions. This motivates us to theoretically analyze a multiparametric evolution of the ensemble averaged spectral density of a multiparametric Gaussian ensemble on the complex plane. Our analysis reveals the existence of an evolutionary route common to the ensembles belonging to same global constraint class and thereby derives a complexity parameter dependent formulation of the spectral density for the non-equilibrium regime of the spectral statistics, away from Ginibre equilibrium limit.
Road performance analysis due to Sayung Industrial Park development
Authors: Sirait R D , Sumabrata R J , Anumasta N T 
Published: February 2024

Abstract
This study aims to analyze the impact of Sayung Industrial Park development to the surrounding road network. The study merely relies on available secondary data, including recent transport study in Semarang Raya, trip rate, and previous research related on industrial area occupancy growth. Road performance in the terms of degree of saturation and travel speed are analyzed using a simplified four-step model using CUBE software. The results show that in 2023, assuming 50% occupancy of the industrial park, the average travel speed decreases by 8.5% and the average degree of saturation increases by 18.7%. While in 2030, assuming 100% occupancy, the road performance is worsened, the average travel speed decreases by 46.4% and the average degree of saturation increases by 45.5%. A new additional lane in each direction on Semarang–Demak main corridor is simulated to anticipate the full operational of Sayung Industrial Park in the future. The result shows an improvement on road performance.
Accessibility and Land Use Effect of Residential Area with Different TOD Typology to Value Creation
Authors: Arliani Vani , Sjafruddin Ade , Santoso Idwan , Winarso Haryo 
Published: February 2024

Abstract
TOD (Transit Oriented Development) is the planning design focusing on integrated transportation and land use in an area with certain radii. There are many transits node which is being designed as TOD, which varies into many typologies. Indication of TOD measurement from TOD ideal, can be measure from accessibility factor and land use factor. There is an indication that each TOD area will give different output (value creation) related to accessibility and land use function. Many studies states about the TOD in different city. where this paper will analyse many areas within the same city. The method is analysing the area into TOD index using AHP, then measuring the value creation with summation of real land and building priceThen analyse the correlation between TOD index and value creation. The study case locations is in Lebak Bulus, Dukuh Atas and Kelapa Gading. The identification of value creation will be useful as an input to the urban planners or policy makers for designing more targeted strategies. The discoveries made in comparative context differ from those made in prior studies. This paper is thus believed to make a new contribution to the existing TOD categorized with additional input related to value creation inside.
Spatial Analysis to Determine Black Spot Area in Kulon Progo Regency, Yogyakarta, Indonesia
Authors: Pratama W A , Mahmudah N 
Published: February 2024

Abstract
Nowadays the number of traffic accidents increase due to the surging volume of road traffic. The efforts to reduce number of accidents is important, especially to identify the location and causes the accidents. Therefore, this study aims to identify black spot areas, which are areas with a high concentration of traffic accidents, in Kulon Progo Regency in Yogyakarta, Indonesia. The method used is spatial analysis by combining analysis of traffic accident data and geographic information system (GIS) data using ArcGIS software. The study focused on provincial road consist of primary collector 2 and 3, as well as national road segments. The analysis of accident data allowed the identification of hotspots where accidents occur most frequently. Hotspot analysis methods such as Local Statistic Analysis and Kernel Density Estimation were used to assess the spatial patterns and clustering of accidents. The study found that the black spot area in Kulon Progo Regency was mainly concentrated on the National Road Segment, with fewer occurrences on the Provincial Road with function of Primary Collector 2 and minimal presence on the Primary Collector 3 Road Segment. This result can be used to develop strategies to mitigate accidents and improve road safety in the area.
The willingness-to-walk to access public transit in Indonesia
Authors: Hadid M , Tufail D N , Hidayat A , Khofifah B S 
Published: February 2024

Abstract
In order to support the implementation of public transportation, an understanding of people’s interest in walking is essential. The farther people’s walking distance means public transportation will have a larger catchment area. This study aims to get parameters that can be used to improve walking distance in Balikpapan (Indonesia). Data collection in this study was carried out through stated preference surveys to 800 respondents divided into 400 motorcycle users and 400 car users. The data were analysed using the Binary Logistics Regression Analysis method, and the result shows that the respondent’s walking distance was 300 meters with a probability of 47% (motorcycle) and 59% (car). The result shows that two aspects significantly influence the willingness to walk, comfort and aesthetics. So, the strategies that are prepared to increase willingness to walk can be started by providing street furniture to support the comfort aspect and planting trees and plants to add aesthetic value.
Leaf habit and plant architecture integrate whole-plant economics and contextualize trait–climate associations within ecologically diverse genus Rhododendron
Authors: Medeiros Juliana S , Burns Jean H , Dowrey Callie , Duong Fiona , Speroff Sarah 
Published: February 2024

Abstract
Plant resource strategies negotiate a trade-off between fast growth and stress resistance, characterized by specific leaf area (SLA). How SLA relates to leaf structure and function or plant climate associations remains open for debate, and leaf habit and plant architecture may alter the costs versus benefits of individual traits. We used phylogenetic canonical correspondence analysis and phylogenetic least squares to understand the relationship of anatomy and gas exchange to published data on root, wood, architectural and leaf economics traits and climate. Leaf anatomy was structured by leaf habit and carbon to nitrogen ratio was a better predictor of gas exchange than SLA. We found significant correspondence of leaf anatomy with branch architecture and wood traits, gas exchange corresponded with climate, while leaf economics corresponded with climate, architecture, wood and root traits. Species from the most seasonal climates had the highest trait–climate correspondence, and different aspects of economics and anatomy reflected leaf carbon uptake versus water use. Our study using phylogenetic comparative methods including plant architecture and leaf habit provides insight into the mechanism of whole-plant functional coordination and contextualizes individual traits in relation to climate, demonstrating the evolutionary and ecological relevance of trait–trait correlations within a genus with high biodiversity.
Utility and Comparative Performance of Current Artificial Intelligence Large Language Models as Postoperative Medical Support Chatbots in Aesthetic Surgery
Authors: Abi-Rafeh Jad , Henry Nader , Xu Hong Hao , Bassiri-Tehrani Brian , Arezki Adel , Kazan Roy , Gilardino Mirko S , Nahai Foad 
Published: February 2024

Abstract

Background
Large language models (LLMs) have revolutionized the way plastic surgeons and their patients can access and leverage artificial intelligence (AI).

Objectives
The present study aims to compare the performance of 2 current publicly available and patient-accessible LLMs in the potential application of AI as postoperative medical support chatbots in an aesthetic surgeon's practice.

Methods
Twenty-two simulated postoperative patient presentations following aesthetic breast plastic surgery were devised and expert-validated. Complications varied in their latency within the postoperative period, as well as urgency of required medical attention. In response to each patient-reported presentation, Open AI's ChatGPT and Google's Bard, in their unmodified and freely available versions, were objectively assessed for their comparative accuracy in generating an appropriate differential diagnosis, most-likely diagnosis, suggested medical disposition, treatments or interventions to begin from home, and/or red flag signs/symptoms indicating deterioration.

Results
ChatGPT cumulatively and significantly outperformed Bard across all objective assessment metrics examined (66% vs 55%, respectively; P &lt; .05). Accuracy in generating an appropriate differential diagnosis was 61% for ChatGPT vs 57% for Bard (P = .45). ChatGPT asked an average of 9.2 questions on history vs Bard’s 6.8 questions (P &lt; .001), with accuracies of 91% vs 68% reporting the most-likely diagnosis, respectively (P &lt; .01). Appropriate medical dispositions were suggested with accuracies of 50% by ChatGPT vs 41% by Bard (P = .40); appropriate home interventions/treatments with accuracies of 59% vs 55% (P = .94), and red flag signs/symptoms with accuracies of 79% vs 54% (P &lt; .01), respectively. Detailed and comparative performance breakdowns according to complication latency and urgency are presented.

Conclusions
ChatGPT represents the superior LLM for the potential application of AI technology in postoperative medical support chatbots. Imperfect performance and limitations discussed may guide the necessary refinement to facilitate adoption.
Cyclophosphamide activates ferroptosis-induced dysfunction of Leydig cells via SMAD2 pathway
Authors: Liao Senlin , Wei Cun , Wei Guanyang , Liang Haoyu , Peng Fan , Zhao Lei , Li Ziguang , Liu Cundong , Zhou Qizhao 
Published: February 2024

Abstract
Cyclophosphamide (CP) is a widely used chemotherapeutic drug and immunosuppressant in the clinic, and the hypoandrogenism caused by CP is receiving more attention. Some studies found that ferroptosis is a new mechanism of cell death closely related to chemotherapeutic drugs and plays a key role in regulating reproductive injuries. The purpose of this study is to explore ferroptosis’ role in testicular Leydig cell dysfunction and molecular mechanisms relating to it. In this study, the level of ferroptosis in the mouse model of testicular Leydig cell dysfunction induced by CP was significantly increased and further affected testosterone synthesis. The ferroptosis inhibitors ferrostatin-1 (Fer-1) and iron chelator deferoxamine (DFO) can improve injury induced by CP. The results of immunohistochemistry showed that Fer-1 and DFO could improve the structural disorder of seminiferous tubules and the decrease of the number of Leydig cells in testicular tissue induced by CP. Immunofluorescence and western blot confirmed that Fer-1 and DFO could improve the expression of key enzymes in testosterone synthesis. The activation of SMAD family member 2 (Smad2)/cyclin-dependent kinase inhibitor 1A (Cdkn1a) pathway can improve the ferroptosis of Leydig cells induced by CP and protect the function of Leydig cells. By inhibiting the Smad2/Cdkn1a signal pathway, CP can regulate ferroptosis, resulting in testicular Leydig cell dysfunction. In this study, CP-induced hypoandrogenism is explained theoretically and a potential therapeutic strategy is provided.