bluuebunny/crossref_metadata_2025_split huggingface dataset:
CO2/CH4 glow discharge plasma. Part I: Experimental and numerical study of the reaction pathways
Authors: Baratte Edmond , Garcia-Soto Carolina Alejandra , Silva Tiago , Guerra Vasco , Parvulescu Vasile , Guaitella Olivier 
Published: June 2023

Abstract
A fundamental study of CO2/CH4 plasma is performed in a glow discharge at a few Torr. Experimentaland numerical results are compared to identify the main reaction pathways. Optical Emission Spectroscopy -based techniques and FTIR (Fourrier Transform Infrared) spectroscopy are used to determine molecules densities and gas temperature.Several conditions of pressure, initial mixture and residence time are measured. The main dissociation productsare found to be CO and H2. The LoKI simulation tool was used to build a simplified kinetic scheme to limitthe uncertainties on rate coefficients, but sufficient to reproduce the experimental data. To this aim, onlymolecules containing at most one carbon atom are considered based on the experimental observations. Obtaininga good match between the experimental data and the simulation requires the inclusion of reactions involving theexcited state O(1D). The key role of CH3 radical is also emphasized. The good match obtained between theexperiment and the simulation allows to draw the main reaction pathways of the low-pressure CO2-CH4 plasmas,in particular to identify the main back reaction mechanisms for CO2. The role of CH2O and H2O in the gasphase is also discussed in depth as they appear to play an important role on catalytic surface studied in the partII of this study.
Effects of land use/cover changes on soil organic carbon stocks in Qinghai-Tibet Plateau: A comparative analysis of different ecological functional areas based on machine learning methods and soil carbon pool data
Authors: Gao Haoran , Gong Jian , Yang Jianxin , Liu Jiakang , Ye Teng 
Published: June 2023

Abstract

Understanding the process of land use/cover changes (LUCC) can provide experience on the enhancement of soil organic carbon(SOC) stocks and carbon sequestration potential for different areas. We divided Qinghai Province into four functional areas and used machine learning method and soil carbon pool dataset to compare and analyze the drivers of LUCC and the changes in SOC stocks effected by LUCC. Topography and climate changes are the main drivers affecting LUCC in four natural areas, while soil factors and population changes do not cause significant effects. The total SOC stocks in Qinghai was increased by 71.18 Tg C and 107.19 Tg C in 0-30cm and 0-300cm layers, respectively, and the highest SOC stocks within 0-300cm were in Pastoral area. Desert and Gobi area had the lowest SOC stocks in both 0-30cm and 0-300cm layers. SOC stocks increased in both 0-30cm and 0-300cm layers only in Sanjiangyuan Natural Reserve, while the Desert and Gobi area showed a decrease in both over 30 years. Grassland changes caused a significantly SOC stocks changes. The initial and original SOC stocks of pre-LUCC may influence the SOC stocks in post-LUCC. The response of SOC stocks changes to LUCC was varies in different areas.
High-fat diet impairs male fertility by disrupting Divalent metal transporter 1 and miR-135b in the gut-testis axis
Authors: Zhang Yanru , Zhang Yulin , Qi Jia , Cao Wenbin , Deng Lijun , Zhou Lin , Ding Ruike , Xue Ying , Liu Enqi 
Published: June 2023

Abstract

Background Obese patients have been found to be susceptible to iron deficiency, and malabsorption of dietary iron is the cause of obesity-related iron deficiency (ORID). Divalent metal transporter 1 (DMT1) and ferroportin (FPN), are two transmembrane transporter proteins expressed in the duodenum that are closely associated with iron absorption. However, there have been few studies on the association between these two proteins and the increased susceptibility to iron deficiency in obese patients. Chronic inflammation is also thought to be a cause of obesity-related iron deficiency, and both conditions can have an impact on spermatogenesis and impair male reproductive function. Based on previous studies, transgenerational epigenetic inheritance through gametes was observed in obesity. Results Our results showed that obese mice had decreased blood iron levels (p < 0.01), lower protein and mRNA expression for duodenal DMT1 (p < 0.05), but no statistically significant variation in mRNA expression for duodenal FPN (p > 0.05); there was an increase in sperm miR-135b expression (p < 0.05). Bioinformatics revealed ninety overlapping genes and further analysis showed that they were primarily responsible for epithelial cilium movement, fatty acid beta-oxidation, protein dephosphorylation, fertilization and glutamine transport, which are closely related to spermatogenesis, sperm development and sperm viability in mice. Conclusions In conclusion, this study demonstrated that high-fat diet impairs male fertility by disrupting DMT1 and miR-135b in the gut-testis axis.
Advanced Generation of Private and Community Crowdfunding Platform for Investors
Authors: Kanade Prasad , Wakase Aditya , Pujari Hrishikesh , Shenkar Rajnee , Suryawanshi Renuka , Sirsikar Sumedha 
Published: June 2023

Abstract
Lately, many creative people are using Crowdfund-ing to raise money for their ideas through the use of an online platform. The use of third-party middlemen who cannot guarantee the investor’s money and the lack of investor control over how their money is used are two issues with the current crowdfunding approach. On the other hand, blockchain technology is a safe, trustworthy , and decentralized network that has become highly popular across many varieties of organizations due to its effectiveness when compared to more traditional ways. However, older techniques have a lot of issues and challenges because of their complex and less secure networks. We can address and avoid these issues if we start incorporating blockchain technology. Blockchain technology can be used to address these problems since it provides benefits including increased security, transparency, efficiency, and reduced fraud risk. Here, we propose a new crowdfunding platform based on blockchain innovation that provides a decentralized and transparent process. By enabling users to construct smart contracts that give them control over the invested cash, our platform’s major objective is to give investors the ability to successfully contribute to any private or public project. In our research, we have highlighted the variations between blockchain-based and traditional crowdfunding platforms and the advantages of using blockchain for various industries. We also discuss the challenges that established sectors face and how blockchain-based platforms could potentially help to address these challenges.
Biventricular hypertrophy unveiling acromegalic cardiomyopathy: A rare case report shedding light on cardiac manifestations
Authors: Faraj Raid , Diallo Thierno Hamidou , Abdelali Mehdi , Benmessaoud Fatima-azzahra , Doghmi Nawal , Zarzur Jamila , Cherti Mohamed 
Published: June 2023

Abstract
Background: Acromegalic cardiomyopathy is a significant cardiovascular complication associated with acromegaly, a rare condition caused by excessive growth hormone production from a pituitary adenoma. While acromegaly often presents with distinct physical changes, early diagnosis can be challenging due to its insidious nature, leading to delayed recognition and the presence of multiple comorbidities at the time of diagnosis. Cardiovascular disease is the most common comorbidity in acromegaly, contributing to significant morbidity and mortality.
Case presentation: This case report describes a non-hypertensive patient who presented with biventricular hypertrophy, revealing the presence of acromegalic cardiomyopathy at the age of 54. The diagnosis relied on information from clinical examination, imaging tests, and biological data. The patient successfully underwent transsphenoidal surgery to remove the pituitary adenoma, resulting in a positive outcome.
Conclusions: Acromegaly patients have higher mortality rates compared to healthy individuals due to the wide array of associated comorbidities, consequently leading to a reduced life expectancy. Hence, early diagnosis and management, particularly before the age of 40, play a crucial role in mitigating the cardiovascular risks associated with acromegaly.
Machine Learning Models to Predict Kidney Stone Recurrence Using 24 Hour Urine Testing and Electronic Health Record-Derived Features
Authors: Doyle Patrick , Gong Wu , Hsi Ryan , Kavoussi Nicholas 
Published: June 2023

Abstract
Objective
To assess the accuracy of machine learning models in predicting kidney stone recurrence using variables extracted from the electronic health record (EHR).
Methods
We trained three separate machine learning (ML) models (least absolute shrinkage and selection operator regression [LASSO], random forest [RF], and gradient boosted decision tree [XGBoost] to predict 2-year and 5-year symptomatic kidney stone recurrence from electronic health-record (EHR) derived features and 24H urine data (n = 1231). ML models were compared to logistic regression [LR]. A manual, retrospective review was performed to evaluate for a symptomatic stone event, defined as pain, acute kidney injury or recurrent infections attributed to a kidney stone identified in the clinic or the emergency department, or for any stone requiring surgical treatment. We evaluated performance using area under the receiver operating curve (AUC-ROC) and identified important features for each model.
Results
The 2- and 5- year symptomatic stone recurrence rates were 25% and 31%, respectively. The LASSO model performed best for symptomatic stone recurrence prediction (2-yr AUC: 0.62, 5-yr AUC: 0.63). Other models demonstrated modest overall performance at 2- and 5-years: LR (0.585, 0.618), RF (0.570, 0.608), and XGBoost (0.580, 0.621). Patient age was the only feature in the top 5 features of every model. Additionally, the LASSO model prioritized BMI and history of gout for prediction.
Conclusions
Throughout our cohorts, ML models demonstrated comparable results to that of LR, with the LASSO model outperforming all other models. Further model testing should evaluate the utility of 24H urine features in model structure.
Transient analysis of earthing electrodes considering soil ionization phenomenon under lightning impulse condition
Authors: Sengar Kaushal Pratap , Chandrasekaran Kandasamy 
Published: June 2023

Abstract

This paper presents the transient behavior of an earthing system under the influence of lightning current injected in to it. Vertical rod and horizontal electrode buried in homogeneous soil are considered in this analysis. State-space representation based transmission line methodology is adopted with non-linear parameters for modelling the earthing electrodes in the time domain. Soil ionization phenomenon is taken up with the presence of residual resistivity. In this method, soil resistivity variation is adopted to evaluate the soil ionization phenomenon that occurs due to changes in the electric field. This study incorporates mutual coupling between the electrode segments for low and high soil resistivity. Earthing electrodes are subjected to a high-magnitude of lightning current impulse with different peaks. Transient voltage and impulse impedance are calculated to analyse the transient behaviour of earthing electrodes with soil ionization. Impulse impedance of vertical earthing rods and horizontal electrodes are calculated and compared with the power frequency impedance. Percentage ohmic reduction between them is also reported. The influences of critical electric field, soil resistivity and lightning magnitude on transient performance of earthing electrodes are calculated. Also, an effect of the front time of lightning current impulse for a fixed peak on the impedance of the earthing electrode is evaluated and a significant amount of changes are observed. Simulated results are validated with the experimental and theoretical results reported in the literature, and good agreements are found.
Spaceflight-induced cardiac remodeling simulated by head-down bed rest in rhesus macaques and hindlimb unloading in mice is modulated by gut microbial-derived trimethylamine N-oxide
Authors: Liu Zizhong , Luo Gui , Du Ruikai , Kan Guanghan , Han Xuan , Zhong Guohui , Xing Wenjuan , Cui Ying , Sun Weijia , Li Jianwei , Li Yuheng , Zhao Dingsheng , Yuan Xinxin , Jin Xiaoyan , Han Yanping , Ling Shukuan , Li Yingxian 
Published: June 2023

Abstract
Background
Spaceflight is physically demanding and can negatively affect astronauts’ health. It has been shown that the human gut microbiota and cardiac function are affected by spaceflight and simulated spaceflight. This study investigated the effects of the gut microbiota on simulated spaceflight-induced cardiac remodeling using 10 degrees of head-down bed rest (HDBR) in rhesus macaques and 30 degrees of hindlimb unloading (HU) in mice.
Results
In macaques, the gut microbiota, fecal metabolites, and cardiac remodeling were markedly affected by HDBR, and there was a correlation between cardiac remodeling and the gut microbial-derived metabolite trimethylamine N-oxide. The gut microbiota and fecal metabolites in mice were also markedly affected by HU and correlated with cardiac remodeling. Cardiac remodeling in control mice was affected by the gut microbiota of HU mice and that of HU mice was protected by the gut microbiota of control mice.
Conclusion
The gut microbiota, fecal metabolites, and cardiac remodeling were markedly affected by HDBR in macaques and HU in mice. These results are consistent with the known effects of spaceflight and HDBR in humans. Cardiac remodeling was affected by the gut microbiota under simulated spaceflight conditions, and the gut microbial-derived trimethylamine N-oxide was correlated with cardiac remodeling. These findings suggest that spaceflight can affect cardiac remodeling by modulating the gut microbiota and fecal metabolites.
Agricultural resilience and land-use from an Indus settlement in north-western India: Inferences from stable Carbon and Nitrogen isotopes of archaeobotanical remains
Authors: Sharma Shalini , Agnihotri Rajesh , Pokharia Anil K. , Kumar Amish , Manjul S. K. , Bhattacharyya Ranjan 
Published: June 2023

Abstract
Stable isotopic compositions of carbon and nitrogen (δ13C, δ15N) of archaeological grains/seeds recovered from different cultural layers of an Indus archaeological site 4MSR (29°12'87.2"N; 73°9'421"E; Binjor, western Rajasthan, India) provide insights into the Harappan agriculture between ~ 2900 to ~ 1800 BCE. While δ13C values were used to retrieve hydrological status, δ15N values were used to gauge agricultural intensification. Isotopic data of grains/seeds were generated representing three Indus phases (i) early phase (~ 2900 − 2600 BCE), (ii) transitional phase (~ 2600 − 2500 BCE) and (iii) mature phase (~ 2500 − 1800 BCE). We find δ13C values of barley grains (winter crop) varied in overlapping ranges for all the three phases − 21.3‰±1.9; −22.9‰±1.6 and − 22.7‰±1.7 respectively (n = 10 for each phase) indicating insignificant changes in hydrology for winter crops. For summer crops cotton also, average δ13C values for transitional phase − 23.7‰±1.8 were not significantly different from those of mature phase − 22.5‰±2.4. δ15Nbarley values also varied in wider ranges, however, intra-phase variability appears to have progressively increased from early (8.0‰±1.7) to transitional phase (7.3‰±2.5) and then mature phase (9.2‰±7.2) indicating a plausible agricultural intensification. We also measured δ13C of host soil organic matter (SOM) and sediment δ15N to assess regional environmental conditions. In contrast to the trends observed for archaeological grains, δ13CSOM values showed a statistically significant enriching trend from early (−23.6‰±1.4) to mature phase (−20.3‰±1.9) hinting a growing aridity in the region. We surmise that Harappan farmers of western Rajasthan region might be managing arable hydrological conditions in their fields through agricultural interventions to continue agriculture practices despite growing aridity in the vicinity.
Separation of ethyl acetate and ethanol azeotropic system by acetate-based ionic liquid
Authors: Li Wenxiu , Zhang Linzi , He Xin , Ni Qingfeng , Zhang Tao 
Published: June 2023

Abstract
Three ionic liquids (ILs)(1-ethyl-2,3-dimethylimidazolium acetate, [EMMIM][AC]; tributyl-methylammonium acetate, [N4,4,4,1][AC]; and tetraethylammonium acetate, [N2,2,2,2][AC]) were chosen. The vapor-liquid equilibrium (VLE) data of ternary mixtures (acetate + ethanol + IL) were gauged at 101.3KPa. NRTL equation was applied to correlate the data. From NRTL model, for [N2,2,2,2][AC], [EMMIM][AC] and [N4,4,4,1][AC], minimum mole fractions for completely eliminating azeotrope are 0.015, 0.020 and 0.022, respectively. From the average relative volatility and σ-profiles, it can be obtained that the separation ability order is [EMMIM][AC] > [N2,2,2,2][AC] > [N4,4,4,1][AC].
Investigating the properties of equilibrium points of the collinear restricted 4-body problem
Authors: Alrebdi H.I. , Alsaif Norah , Suraj Sanam , Zotos Euaggelos E. 
Published: June 2023

Abstract
The circular version of the planar restricted 4-body problem is considered. We assume that the two peripheral bodies have not spherical shape but they are either prolate or oblate. The dynamical properties of the points of equilibrium of the system are investigated using several types of numerical methods and techniques. In particular, we calculate not only the coordinates of the positions of the libration points but also their linear stability and dynamical types. Our main objective is to reveal the influence of the mass parameter of the system along with the shape parameter on the equilibrium dynamics. Our analysis indicates that in the case where the peripheral bodies are prolate in shape the equilibrium dynamics of the system is more interesting and complex with respect to the case where the two peripheral bodies have oblate shapes.
Governance and Economic Growth in Afghanistan during the Era of US presence
Authors: GHAFOORI Noorulhaq , Meng Chang 
Published: June 2023

Abstract

Over the course of its 20-year occupation, was the USA successful in establishing a democratic state in Afghanistan that could improve the quality of governance and boost economic growth? The 20-year USA presence in Afghanistan is examined in this paper in terms of how governance affected economic growth. Along with governance indicators, the effects of foreign aid and the labor force as control variables have also been examined on economic growth. To evaluate the equilibrium between research variables, the ARDL-ECM model has been utilized. The result demonstrates that, in the era of US presence, none of the six world governance indicators over the long term have had a significantly positive impact on economic growth. In the long run, the control of corruption has a negative impact, and in the short run, effective government significantly has a positive impact on economic growth during the investigation period. According to our findings, governance indicators have a much smaller impact on economic growth than population size and foreign aid in both short- and long-run equilibrium. Overall, there was a substantial reliance on human resources and international assistance for economic expansion in the era of democracy. The evidence shows that the association between economic growth and governance was found to be very poor, and the administration in Afghanistan had not been able to stimulate economic growth throughout the US presence.
JEL classification: H1, O100
La producción de videojuegos en La Habana durante el 2019. ¿Una industria en construcción?
Authors: López García Hamlet , Fernández Hernández Carlos , Rodríguez Fidel Alejandro , Pérez Piloto Amanda 
Published: June 2023

El artículo tiene el objetivo de diagnosticar cuál es el estado de la producción de videojuegos en la ciudad de La Habana. Para ello recoge información mediante entrevistas a algunos productores y analiza información documental durante el 2019, año que cubre el presente artículo. Entre los principales resultados se encuentra que si bien no puede hablarse de la presencia de una industria, existe una ventana de oportunidad para su fomento. El artículo concluye con algunas referencias a lo ocurrido posteriormente al año del estudio y un conjunto de sugerencias de políticas.
Comunicación y ética científicas. El falso fraude de las pinturas de Altamira y su representación en el film “Altamira” (2016)
Authors: López Yepes José 
Published: June 2023

Narración del proceso del descubrimiento de las importantes pinturas prehistóricas halladas en 1879 en una cueva de Cantabria (al norte de España) llamada Altamira. Tal descubrimiento, por su elevado valor artístico y su perfección técnica no pudo ser aceptado que fuera cierto por la mayor parte de la comunidad científca del momento encabezada por Cartailhac, arqueólogo francés de gran inﬂuencia. El artículo narra todas las vicisitudes que tuvo que soportar su descubridor, Marcelino Sanz de Sautuola, que fue acusado de superchería y falsifcación de las pinturas. Falleció sin ver reconocido su hallazgo. Con posterioridad, el arqueólogo francés reconoció su error y visitó la cueva y la tumba del erudito español.
La sátira política como mecanismo comunicativo: el ejemplo de la colección de Papeles Varios del Archivo Histórico de la Universidad de Salamanca
Authors: Vivas Moreno Agustín 
Published: June 2023

La Colección de Papeles Varios (P.V.) del Archivo Histórico de la Universidad de Salamanca (A.U.S.A.) es una colección documental, esto es, un conjunto de documentos reunidos según criterios no objetivos, y que por lo tanto, no conservan una estructura orgánica ni responden al principio de procedencia archivístico, y que dado su interesante material, inédito en gran medida, merece ser consultada por investigadores no sólo vinculados a la historia universitaria, sino también por estudiosos de otras especialidades para los siglos XVI-XVIII. En esta ocasión, nos centraremos en dar a conocer los documentos relacionados con la sátira política. Esta forma documental se caracteriza por la crítica, la cualidad aleccionadora y el humor, convirtiéndose en un extraordinario instrumento de comunicación. Las invectivas al estamento eclesiástico, las críticas a la política u otras cuestiones anecdóticas aparecen reﬂejados en nuestros documentos. Finalmente presentamos el anexo de los mismos.
Pengantar editorial MediaPsi 9(1) 2023
Authors: Akhrani Lusy Asa 
Published: June 2023

Bagian pendahuluan ini merangkum kontribusi dalam MediaPsi edisi ini. Mediapsi edisi ini menyajikan artikel berdasarkan dinamika psikologis yang terjadi sepanjang rentang hidup manusia. Tiga artikel pertama menyajikan hasil penelitian pada remaja dengan berbagai fenomena yang dihadapi seperti hubungan pertemanan maupun berpacaran, serta strategi koping remaja dalam menghadapi kecemasan, artikel ke empat menampilkan periode dewasa awal di dalam konteks organisasi dan pekerja, serta artikel ke-lima menyajikan hasil penelitian pada rentang usia dewasa akhir dan lansia yang berada dalam situasi rehabilitasi sebagai pengemis dan gelandangan.