bluuebunny/crossref_metadata_2025_split huggingface dataset:
Experimental Study on CO2 Flooding Characteristic in Low-Permeability Sandstone Considering the Influence of In-Situ Stress
Authors: Zhang Tong , Zhu Min , Zhou Guoliang , Wu Jun , Yang Xin , Li Ruilong 
Published: August 2024

Summary
The pore network controlled by in-situ stress significantly influences the CO2 flooding in low-permeability reservoirs. In this study, the CO2/oil distribution and response of pore structure were monitored online using low-field nuclear magnetic resonance (LF-NMR), and the in-situ stress dependence of oil recovery was analyzed. The results show that the pore structure consists of adsorption pore (AP &lt; 1 millisecond), percolation pore (1 millisecond &lt; PP &lt; 10 milliseconds), and migration pore (10 milliseconds &lt; MP). Oil recovery was primarily influenced by AP and MP at lower in-situ stress, while PP and MP are the main contributors at higher in-situ stress. The matrix experienced compression deformation, microfracture generation, and shrinkage of pore, combined with an increase and followed by a decrease in oil recovery, responding to the increase of in-situ stress from 5 MPa to 15 MPa and from 15 MPa to 20 MPa. The reduction in gas channels promotes a piston-like advancement of oil displacement, resulting in an initial increase in oil recovery, while subsequent decline is linked to heightened pore heterogeneity caused by high in-situ stress. Increased heterogeneity reduces gas displacement stability, hampers CO2 sweep efficiency, and results in a granular distribution of residual oil. The findings provide insight on CO2-enhanced oil recovery (EOR) in low-permeability reservoirs.
Experimental and Theoretical Studies of Nano-Silica Solutions in Narrow Flow Paths Applied to Sealing Cement Cracks
Authors: Mahmood Md Nahin , Nguyen Vu V. , Guo Boyun 
Published: August 2024

Summary
A cement crack is a typical cause of oil and gas well failure. Cracks weaken cement, reducing zonal isolation and fluid leakage. Nanoparticle (NP) gels are being tested for fracture treatment. When crushed into cracks, the flow behavior of NP problem solutions should be predicted. The potential efficacy of utilizing NP gels as a remedial measure for fractures is currently under investigation. It would be advantageous to determine if the flow behavior of solutions for NP problems can be anticipated when they are compressed into crevices. This study aimed to analyze the behavior of nano-silica solutions as they flow through ducts with rectangular cross-sections and varying crack dimensions. The introduction of NP solutions into the core leads to a decrease in pressure, which suggests that the nano-silica has been effectively transported through the crack. As the size of the fracture decreases, there is a corresponding increase in pressure drops, while the flow rate experiences a concurrent increase. This study presents responses of a pressure gradient to fluid concentration for a range of fracture widths, heights, and flow rates. The prediction of laminar flow in ducts is based on the linear correlation between the flow rate and the pressure gradient. Furthermore, the reduced pressure gradient indicates enhanced fluid flow within the fracture because of the amplified slot width. The fluid flow model proposed by Guo et al. (2022) was utilized to conduct a comparative analysis with the experimental data. Compared with test data, the model differs by roughly 90%. The technical cause of the flow model-observed data discrepancies is unknown. The flow model did not account for friction between NPs-NPs and NPs-walls in rough ducts. An empirical correlation has been found that quantifies the ratio as a function of nonsilica solution flow rate, cross-sectional geometry parameters, and nano-silica concentration. The correlation was calculated using nonlinear regression. The empirical relation and actual ratio have a significant correlation, as shown by R2 = 0.8965. In practice, Guo et al.’s (2022) hydraulic model’s pressure drops should be multiplied by the empirical correlation’s ratio to reduce errors.
High-Frequency Carbon Emission Monitoring for Power Generation Enterprises Based on ICEEMDAN- Inception-Transformer
Authors: Jiang Yuqiong , Mao Zhaofang 
Published: August 2024

Abstract

Accurate carbon accounting is essential for power generation enterprises to participate in carbon markets and implement carbon reduction strategies. However, due to excessive reliance on detailed energy data and manual calculations, carbon emission accounting in power generation enterprises suffers from low frequency, significant lag, and poor reliability. Some evidences suggest a strong correlation between internal carbon emissions and electricity consumption in power generation enterprises. Inspired by them, this paper proposes a novel model, named ICEEMDAN-Inception-Transformer, to thoroughly explore the relationship between power data and carbon emissions, providing precise hourly carbon emission acquisition for power enterprises. This model first utilizes ICEEMDAN to extract the significant characteristics of power data, then employs advanced Inception and Transformer structures to capture the complex high-dimensional features of the "electricity-carbon" correlation, thereby realizing enterprise carbon emissions monitoring. The model was extensively validated on three datasets from three different types of power enterprises. The average performance on indicators of RMSE, MAE, MAPE, and R2 of the model on the three datasets reached 11.69 tCO2, 9.58 tCO2, 2.44%, and 96.42%, respectively. The results demonstrate that the proposed monitoring model possesses certain advantages in terms of the accuracy and robustness of acquiring enterprise carbon emissions, providing valuable insights for high-frequency accurate carbon monitoring in power generation enterprises.
Pollution characteristics and risk assessment of 15 organic phosphorus flame retardants in the Ili River Basin
Authors: hu feng , WANG Xinglei , WANG SiYu , EPTIHAR•Jappar EPTIHAR•Jappar , LIU Shihui 
Published: August 2024

Abstract

A solid-phase extraction-gas chromatography-pulsed flame photometric detector (SPE-GC-PFPD) was developed to determine 15 organophosphate flame retardants (OPFRs) in surface water of the Ili River basin. The recovery ranged from 76.4% to 98.6%, showing a good linear relationship. Four OPFRs were identified among them, with mean concentrations of 20, 28, 36, and 21 ng/L. The ecological risk of flame retardants in water was assessed using the risk entropy method. The ecological risk quotient (RQ) was calculated as 0.1, indicating a moderate to low level of risk. The noncarcinogenic and carcinogenic risks associated with the four OPFRs were found to be below their respective risk thresholds, suggesting negligible health risks from drinking water intake. The frequent detection of TiBP, TCEP, TCPP, and TDCPP warrants further attention.
Persistence of wildfire-related school disruptions
Authors: Clark Ransi , Alvarez R. Michael 
Published: August 2024

Abstract

Do wildfires affect the educational outcomes of elementary and middle school students? Are these effects immediate and transitory, or do they persist over time? As wildfire seasons across the globe grow longer and more severe, these questions are becoming increasingly important. Here, we use student testing data from Colorado to investigate immediate and persistent causal impacts of the destructive 2020 wildfire season on elementary and middle school test participation and competency rates from 2021 to 2023. School disruptions are proxied using near real-time satellite observations of smoke plumes on school days. We demonstrate that recovery of educational outcomes to pre-pandemic levels is hindered by disasters, with affected schools reporting test participation rates about 2-3 percentage points below those of their peers even two years after the disaster. We also show that students at all grade levels are affected immediately by wildfire-induced school disruptions, but effects are most persistent for younger students in urban settings.
An Experimental Study on Deuterium Production from Titanium Hydride Powders Subjected to Thermal Cycles
Authors: Gamberale Luca , Modanese Giovanni 
Published: August 2024

Abstract

An extensive multi-year experimental study was conducted to investigate the potential production of deuterium from titanium hydride (TiHx) powders subjected to specific thermal cycles. The results reveal an anomaly in the deuterium-to-hydrogen ratios. Mass spectrometry analyses show an increase in deuterium abundance, with three independent methods confirming the excess deuterium. This study was motivated by theoretical predictions suggesting the generation of slow neutrons within metal hydrides when exposed to coherent excitations. Our findings align with direct measurements of neutron emission by TiHx powders under cavitation in liquid water, as recently published by Fomitchev-Zamilov.
Maternal-Foetal Complications in Pregnant Women with Obesity: a predictive model
Authors: Díez-Ibarbia Alba , Odriozola-Feu Juan Manuel , Díez-Paz Eva , Sarabia-Cobo Carmen 
Published: August 2024

Abstract

Background
Obesity is a recognised global epidemic with serious consequences, including increased risk of morbidity and reduced life expectancy. It is a chronic, multifactorial disease defined by a Body Mass Index ≥ 30 kg/m2. It also imposes a significant economic burden on individuals, families and countries. During pregnancy, maternal obesity is a significant risk factor, making pregnancy a vulnerable period for obese women, potentially worsening its course and having adverse effects on both mother and foetus. In addition, the offspring of obese pregnant women are at increased risk of obesity in childhood and adulthood. Therefore, the aim of this study was to describe the maternal and neonatal consequences and morbidity associated with maternal obesity in pregnant women in the community of Cantabria, northern Spain, in the post-pandemic era.
Methods
This was achieved through a retrospective observational descriptive study of pregnant women who gave birth at the Marqués de Valdecilla University Hospital in Cantabria during the years 2021 and 2022. STROBE's COREQ recommendations were followed.
Results
No significant differences were found in the incidence of diseases during pregnancy and postpartum between 2021 and 2022. However, a significant difference was found in the need for Neonatal Intensive Care Unit admission, with a higher proportion of newborns admitted to the Neonatal Intensive Care Unit in 2022. The classification model suggests that diseases during pregnancy, especially Hypertension arterial, complications during labor (with hemorrhage as the main one), and the reason for cesarean section, Risk of Foetal Well-being Loss, are significant predictors of the type of delivery. A significant increase in the frequency of all treatments was observed during the puerperium compared to gestation.
Conclusions
Obesity increases the risk of presenting diseases and complications during pregnancy, childbirth and neonatal risks. Therefore the pregnancy is a conflict for public health because it increases obstetric.
Efficacy and Safety of Emotion-to-Emotion Therapy Versus Virtual Reality-based Emotion to Emotion Therapy for Treatment of Hwabyung: A protocol for a single-center, randomized, assessor-blind, parallel-group clinical trial
Authors: KooK Hye-Jeong , Kang Dong-Hoon , Park Yang-Chun , Kim NamKwen , Kang Hyung Won , Jung In Chul 
Published: August 2024

Abstract

Background:
Hwa-Byung is a prevalent neuropsychiatric disorder in South Korea, where accumulated anger and associated symptoms significantly impair family, work, and personal relationships. Given the limitations of pharmacological treatments, there is a need for effective non-pharmacological alternatives. Emotion-to-Emotion Therapy (ETE) has shown promise in managing the psychological and physical symptoms of Hwa-Byung. Additionally, virtual reality (VR) is emerging as a beneficial adjunct to psychotherapy. This study compares the efficacy and safety of VR-based ETE with ETE alone.
Methods:
This single-center, randomized, assessor-blind, parallel-group clinical trial will enroll 96 participants, divided equally among two experimental groups and one control group. Over eight weeks, each participant will undergo 12 intervention sessions. Experimental Group 1 will receive conventional ETE, Experimental Group 2 will receive VR-based ETE and the control group will receive Hwa-Byung management training materials. The primary outcome will measure changes in the Likert Scale for Major Symptoms of Hwa-Byung from baseline to 8 weeks. Secondary outcomes will include the Core Seven-Emotions Inventory Short Form, Physical Health Questionnaire, Stress Response Index, Beck Depression Inventory, State-Trait Anger Expression Inventory, State-Trait Anxiety Inventory, functional Near-infrared Spectroscopy, and Heart Rate Variability.
Discussion:
ETE is known as effective oriental psychotherapy that enhances symptom management, self-regulation, and stress coping. VR is anticipated to enrich treatment immersion. These strengths being combined, this study will explore VR-based ETE's potential to ameliorate Hwa-Byung symptoms, assessing its clinical effectiveness relative to conventional ETE.
Trial registration number:
KCT0007871 (Registered in Clinical Research Information Service of the Republic of Korea); registered on 2022/11/03(https://cris.nih.go.kr/cris/search/detailSearch.do/27510))
Response of fluorescent boron difluoride β-diketonates to X-rays
Authors: Lifanovsky Nikita S. , Yablontsev Nikita A. , Belousov Alexandr V. , Klimovich Mikhail A. , Mirochnik Anatolii G. , Fedorenko Elena V. , Lyubykh Nikita A. , Kolyvanova Maria A. , Kuzmin Vladimir A. , Morozov Vladimir N. 
Published: August 2024

Abstract

This paper reports the results of a detailed study of the optical response of boron difluoride curcuminoids to radiation exposure. Two lines of the dyes fundamentally different in structure (namely, symmetrical and asymmetrical) were tested. If the absorption responses of their solutions in chloroform to X-rays turns out to be quite close quantitatively (note that it has a very indicative visual manifestation – a gradual discoloration is observed in the dose range up to 300 Gy), the fluorescence ones differ notably: among other things, the former demonstrate much more sensitive reactions (the corresponding limit of detection values ​​differ by up to 2.36-fold). Nevertheless, in both parameters, these dyes generally show good linearity of the response as in classical coordinates (up to ≈ 100–150 Gy), as in semi-logarithmic ones (up to 1000 Gy). Since the main reason for such behavior seems to be the radiation-induced decomposition of the dyes, its possible scheme and corresponding “weak links” in the structure of the molecules (in other words, radiosensitive elements) are proposed for each case. For example, these include N(CH3)2 fragments at the ends of dimethylaminostyryl groups. It is precisely their detachment that determines the observed optical response of asymmetrical dyes. Thus, the results obtained provide some insight into the possibilities of controlling the sensitivity of organic dyes to irradiation by changing their structure.
Tailored impact of dietary fibers on gut microbiota: a multi-omics comparison on the lean and obese microbial communities
Authors: Dell’Olio Andrea , Scott William T. , Taroncher-Ferrer Silvia , Onofre Nadia San , Soriano Jose Miguel , Rubert Josep 
Published: August 2024

Abstract

Background: Previous studies have shown that microbial communities differ in obese and lean individuals, and dietary fiber can help reduce obesity-related conditions through diet-gut microbiota interactions. However, the mechanisms by which dietary fibers shape the gut microbiota still need to be elucidated. In this in vitro study, we examined how apple fibers affect lean and obese microbial communities on a global scale. We employed a high-throughput micro-matrix bioreactor system and a multi-omics approach to identify the key microorganisms and metabolites involved in this process.
Results: Initially, metagenomics and metabolomics data indicated that obese and lean microbial communities had distinct starting microbial communities. We found that obese microbial communities had different characteristics, including higher levels of Ruminococcus bromii and lower levels of Faecalibacterium prausnitzii, along with an increased Firmicutes:Bacteroides ratio. Afterward, we exposed obese and lean microbial communities to an apple as a representative complex food matrix, apple pectin as a soluble fiber, and cellulose as an insoluble fiber. Dietary fibers, particularly apple pectin, reduced Acidaminococcus intestini and boosted Megasphaera and Akkermansia in the obese microbial community. Additionally, these fibers altered the production of metabolites, increasing beneficial indole microbial metabolites. Our results underscored the ability of apple and apple pectin to shape the obese gut microbiota.
Conclusion: We found that the obese microbial communities had higher branched-chain amino acid catabolism and hexanoic acid production, potentially impacting energy balance. Apple dietary fibers, especially pectin, influenced the obese microbial community, altering both species and metabolites. Notably, the apple pectin feeding condition affected species like Klebsiella pneumoniae and Bifidobacteriumlongum. By using genome-scale metabolic modeling, we discovered a mutualistic cross-feeding relationship between Megasphaera sp. MJR8396C and Bifidobacterium adolescentis. This in vitro study suggests that incorporating apple fibers into the diets of obese individuals can help modify the composition of gut bacteria and improve metabolic health. This personalized approach could help mitigate the effects of obesity.
Characterizing the association between asthma and clinical outcomes in emergency department patients with symptomatic COVID-19
Authors: Mazloum Bachar Al , Hohl Corrine , Richardson Harriet , Peng Yingwei , Rowe Brian H , Latiu Vlad , Chadwick Dryden , Chandra Kavish , Brooks Steven 
Published: August 2024

Abstract

Few studies have investigated the risks of developing intubation and death in patients seen in the ED with COVID-19 and pre-existing asthma. We conducted a retrospective cohort study using data from the Canadian COVID-19 Emergency Department Rapid Response Network (CCEDRRN) from March 1st, 2020, to December 31st, 2021. Inclusion criteria were age ≥18 and a positive SARS CoV-2 test. The primary outcome was a composite of intubation or death, and the secondary outcome was severe COVID-19 as defined by the World Health Organization. Multivariable modified Poisson regression was used to assess the association between asthma and outcomes, adjusted for possible confounding. Out of 38,139 patients, 2,826 (7.41%) had asthma, and 17.1% were using inhaled corticosteroids (ICS). The study found no significant evidence suggesting an association between asthma and intubation or death in the hospital (RR: 0.97; 95% CI: 0.86, 1.1). The highest risk group for the primary outcome was patients aged 80+ years (RR: 10.54; 95% CI: 7.01, 15.85), compared to the reference group 18-29 years. Users of ICS agents had a slightly higher risk of the primary outcome compared to non-ICS users (RR: 1.12; 95% CI: 1.01, 1.25).
Clinical Trial Registration ClinicalTrials.gov NCT04702945
Azole Fungicides: Potential Endocrine Disrupting Effects and Impact on Placental Steroidogenesis via Inhibiting Human and Rat 3β-Hydroxysteroid Dehydrogenase
Authors: Yan Jingyun , Chen Huan , Ji Zhongyao , Tang Yunbing , Wang Shaowei , Zheng Jingyi , Li Huitao , Li Linxi , Ge Ren-shan , Dong Yaoyao 
Published: August 2024

Abstract

Azole fungicides have been found to inhibit the activity of human 3β-hydroxysteroid dehydrogenase 1 (3β-HSD1), a key enzyme involved in steroid synthesis during normal pregnancy. However, the specific azole fungicides that exert this inhibitory effect and the structure-activity relationship (SAR) involved have not been fully elucidated. This study aimed to analyze the inhibitory potency, mode of action, SAR, and docking parameters of 9 azole fungicides on human 3β-HSD1 and its rat homolog 3β-HSD4. The results revealed that bromuconazole, climbazole, cyproconazole, and etaconazole A varying inhibitory potency against human 3β-HSD1, with IC50 values ranging from 6.21 µM (climbazole) to 104.83 µM (cyproconazole). These fungicides were identified as mixed/noncompetitive inhibitors of human 3β-HSD1. Among them, climbazole and bromuconazole were found to inhibit progesterone secretion by human JAr cells at 20 and 40 µM. It was also observed that these fungicides significantly inhibited the activity of rat placental 3β-HSD4, although with reduced potency compared to their effect on human 3β-HSD1. Furthermore, docking analysis indicated that the azole fungicides bind to the NAD+/steroid binding site via hydrogen bonds, hydrophobic, and van der Waals interactions. The study demonstrated a negative correlation between LogP and IC50 value for 3β-HSD1, indicating that the lipophilicity of the chemicals plays a critical role in their inhibitory effect. Additionally, 3D-QSAR analysis highlighted the significance of hydrogen bond donor and acceptor in the binding process. In conclusion, it was shown that certain azole fungicides exhibit inhibitory effects on human 3β-HSD1, and this inhibition is dependent on their lipophilicity. These findings suggest that these fungicides could potentially act as potential endocrine disruptors in the context of steroid synthesis during pregnancy.
Trade coupled with aquaculture is sustaining growth and improving stability in global aquatic food supply
Authors: Zhao Kangshun , Gaines Steven D. , Molinos Jorge García , Zhang Min , Xu Jun 
Published: August 2024

Abstract

Aquatic food security is closely interconnected with multiple sustainable development goals (SDGs). Although assessing aquatic food security relies on understanding global trends in per capita production and consumption, there has been no comprehensive index to evaluate these trends in a country or regional context. Here, we develop a novel framework based on a comprehensive scoring system to assess changes in contemporary per capita aquatic food production and consumption trends (tendency, magnitude, and stability) across 177 countries in two time periods (1961–1990 and 1991–2019). Globally, over 50% of countries scored positive in production and consumption trends from 1961 to 1990. However, between 1991 and 2019, over half of the countries achieved negative production trend scores, while 68.4% of countries maintained positive consumption trend scores, accompanied by higher stability in the trends. Meanwhile, while global overall aquatic food production trend scores decreased significantly across both periods, the consumption trend scores did not decline substantially. This caused a notable overall increase in the positive disparity between consumption and production trend scores. We highlight an increasing disjunction between per capita consumption and production comprehensive trends while underscoring the collaborative synergy between aquaculture and trade as crucial factors that sustain the increase and improve stability of aquatic food consumption for most countries worldwide. The scores of global production and consumption trends of aquatic foods can provide valuable indicators for managers and policymakers to promote sustainable development and more equitable distribution of aquatic products, thereby improving future food security.