bluuebunny/crossref_metadata_2025_split huggingface dataset:
Estimation of Temperature Profiles using Low-Frequency Distributed Acoustic Sensing from In-Well Measurements
Authors: Bradley Nicholas , Haavik Kjetil Eik , Landrø Martin 
Published: September 2023

Summary
Distributed fiber-optic sensing for in-well measurements is primarily used for monitoring purposes. Distributed acoustic sensing (DAS) is used to record acoustic disturbances and is sensitive to changes in strain, pressure, and temperature. Distributed temperature sensing (DTS) is used to measure temperature along the fiber. Here, we compare temperature changes measured by DAS and DTS in wells over different time periods. We affirm the linear dependency between DAS’s phase change and temperature, with the derived strain rate being proportional to the time derivative of the temperature response. Given that low-frequency (LF) DAS is sensitive to strain, pressure, and temperature effects, one must choose quiet periods in the well or condition the data to only analyze the effect of temperature on the fiber. We show that LF-DAS data can be used to track temperature changes over several weeks.
We then propose a method, using liquid column movements, to invert LF-DAS data for absolute temperature profiles. The temperature profile in a well can be measured using DTS. However, DTS data are not always available, and conventional Raman scattering DTS is not used in subsea wells with long lead-in lengths. Hence, it would be desirable to acquire the temperature response from LF-DAS data to use as a multipurpose tool for in-well monitoring. Here, we show that when purely investigating the response to an initial displacement of the fluid column (i.e., from rest), LF-DAS can be used along with reference sensors, such as the wellhead and downhole temperature gauge data to estimate the depth variations in temperature in production and injection wells.
Characterization and Performance Evaluation of Modified Apatite Ore as a New Acid-Soluble Weighting Agent for Drilling Fluids
Authors: Zhao Xin , Zhang Heng , Wang Shuai , Su Wenzhi , Sun Hao , Ren Xiaoxia 
Published: September 2023

Summary
Drilling in oil and gas reservoir formations requires the solid weighting agent used in drilling fluids to have good acid solubility to facilitate plugging removal in subsequent operations. Limestone is the most commonly used acid-soluble weighting agent, but its low density and significant thickening effect lead to a low weighting limit. To achieve control of drilling fluid density, rheology, sag stability, and acid solubility, the feasibility of using apatite (AP) ore as an acid-soluble weighting agent for drilling fluids has been discussed after it was modified by the nitrogen-containing organic polybasic phosphonic acid sodium salt. The basic characteristics of AP and modified AP (MAP) were analyzed. After that, the rheological, filtration, and sag stability properties of MAP-weighted water-based drilling fluids with densities of 1.2 g/cm3 and 1.6 g/cm3 were evaluated, and acid solubility, filter-cake permeability, core permeability damage, and plugging removal tests by acid solutions were performed to evaluate the formation protection effect. The results show that the density of AP is 2.98 g/cm3, and the main component is hydroxyapatite. Its negative electricity and hydrophilicity were enhanced after surface modification, so its dispersion stability in water was enhanced, thereby improving the rheology, filtration, and sag stability properties of the MAP-weighted drilling fluid. The solubility of MAP in 10% HCl solution reached 90.13%, and the core contamination experiments show that after being soaked in HCl solution, the return permeability of contaminated cores reached higher than 90%, indicating that the MAP invading the core can be efficiently dissolved and removed in the acidic working fluids used in the subsequent completion and stimulation operations, thus effectively protecting the reservoir formation. The properties of MAP are superior to those of limestone, and it can be used as a new acid-soluble weighting agent for drilling fluids, considering both drilling fluid performance regulation and reservoir formation protection.
Physics-Guided V-Net: An Efficient Surrogate Model for Well Placement Optimization in Petroleum Reservoirs
Authors: Xu Rui 
Published: September 2023

Summary
Determination of the optimal well placement strategy in oil or gas fields is crucial for economic reservoir development. The optimization process, however, can be computationally intensive as a result of the potentially high-dimensional search space and the expensive numerical simulation. In this study, machine-learning-based surrogate models are constructed as efficient alternatives to numerical simulators to accelerate the optimization process. A V-Net neural network architecture is used with features of skip connections, 3D convolutional filters, and a residual learning structure to handle 3D parameter fields effectively. Physical guidance is incorporated into the neural network training process by adding governing equation constraints to the loss function in the discretized form, resulting in a physics-guided machine learning architecture: PgV-Net. Well placement optimization problems in a 3D oil-bearing formation with strong porosity and permeability heterogeneity are studied using the PgV-Net-based surrogate model along with genetic algorithms (GAs). Three optimization problems with increased complexity are solved, and the results are compared with regular approaches using a numerical simulator. Good agreement between the two approaches is observed, and the computational efficiency improves dramatically (up to 30 times). The proposed PgV-Net neural network training architecture reduces the requirement of expensive training data and can be used for more challenging problems such as multiphase flow modeling.
Storage in the Deep Aquifer: Stochastic Process in Time and Frequency Domain Using Groundwater Level Response to Seismic Activation of the Tohoku Earthquake, Japan, 2011
Authors: Shih David Ching-Fang 
Published: September 2023

Abstract
This study delves the interplay of Rayleigh wave-groundwater-aquifer dynamics, utilizing seismic data from designated stations, particularly the magnitude 9 event on March 11, 2011 (02:46:23 PM epicenter), Tohoku Earthquake, Japan. Auto spectra uncover significant peaks, linking groundwater shifts with Rayleigh waves' vertical motion. High coherence between groundwater levels and seismogram vertical shifts confirms this connection. Coherence analysis validates it within a frequency range. Aquifer storage coefficient estimation aligns with confined aquifer norms, ranging from 1.0E-05 to1.0E-03. This consistency holds true across different methods and other earthquake event, highlighting seismic impact. The research emphasizes seismic relevance for groundwater insight. Expanding datasets is recommended for coefficient precision. These insights enhance understanding of aquifer behavior during seismic events, aiding groundwater management and earthquake readiness in susceptible regions. Further research should expand datasets for coefficient accuracy. Insights advance aquifer behavior comprehension during seismic events, guiding groundwater management and earthquake readiness in prone regions.
Tocilizumab for the Treatment of Mevalonate Kinase Deficiency and TNF Receptor-Associated Periodic Syndrome: cases report and literature review
Authors: Li Yandie , Lu Meiping 
Published: September 2023

Abstract
Background Mevalonate kinase deficiency (MKD) and TNF receptor-associated periodic syndrome (TRAPS) are systemic autoinflammatory diseases (SAIDs), which are rare diseases with early-onset, severe condition and difficult diagnosis and treatment. Although different SAIDs have standard treatments, some SAIDs are poorly controlled after routine treatment, which seriously affects the growth and development of children and their quality of life. The purpose of our study is to provide more treatment strategies for SAIDs.Cases presentation: We presented 2 Chinese patients with MKD and TRAPS who were resistant to TNF-α blockade. The patients with MKD and TRAPS still have periodic fever and rash after using etanercept, baricitinib and glucocorticoid. IL-1 antagonists are not available in Chinese Mainland, then they commenced intravenous tocilizumab (240mg every 3 weeks). After they were treated by one or two doses of tocilizumab, they were not suffered from fever and rash so far. Before treatment of tocilizumab in MKD patient, WBC and TNF-α were normal, ESR and CRP increased significantly, and IL-6 increased slightly. After treatment of tocilizumab, ESR and CRP fell to normal, however, IL-6 increased occasionally. In TRAPS patient, ESR, CRP, WBC, IL-6 and TNF-α were increased significantly. After treatment of tocilizumab, ESR, CRP, WBC, IL-6 and TNF-α fell to normal. Two patients were treated with tocilizumab for more than 6 months, and they achieved in clinical and serological remission. Two patients had no adverse reactions after injection of tocilizumab.Conclusions Without IL-1 antagonists in Chinese Mainland, tocilizumab is useful as an alternative drug to the treatment of SAIDs who are resistant to TNF-α blockade.
What is the price of wetlands? Educational experience of economic valuation in Chile
Authors: Araya-Piñones Angelo , Bakit José , Flores Mario , Guerrero Matías , Silva Mariela , Valencia-Ceballos Leslie , Varela Fabiola , Poblete Rodrigo 
Published: September 2023

Abstract

Coastal wetlands are important habitats for human well-being due to their ecosystem services, which require tools to ensure their conservation. Environmental management proposes to estimate the economic value of environmental resources that make decisions in both the ecological and economic spheres. A learning experience was carried out in the context of postgraduate students, addressing the contents of the Economic Aspects of Sustainable Development subject, to then give way to the implementation of two economic valuation methods. The valuation of El Culebrón Wetland was carried out using Contingent Valuation (CV) and Defensive Expenditure (DE) estimation methods in an academic framework. The 20-year valuation results were US$5,750,000 (CV) and US$3,050,009 (DC). The experience allowed us to estimate the economic value of wetlands and reflect on the opportunities and complexities that the application of these methodologies implies, linked to decision-making with an emphasis on the conservation of these vulnerable and productive ecosystems, leaving ethical questions about economic valuation.
Influence of Microgravity on Spontaneous Calcium Activity of Primary Hippocampal Neurons.
Authors: Lecoq Pierre-Ewen , Dupuis Chloé , Mousset Xavier , Benoit-Gonnin Xavier , Peyrin Jean-Michel , Aider Jean-Luc 
Published: September 2023

Abstract
The influence of variations of gravity, either hypergravity or microgravity, on the brain of astronauts is a major concern for long journeys in space, to the Moon or to Mars, or simply long-duration missions in the ISS. Monitoring brain activity, before and after ISS missions already demonstrated important and long term effects on the brains of astronauts. In this study, we focus on the influence of gravity at the cell level on primary hippocampal neurons.
A dedicated setup has been designed and built to perform live calcium imaging during parabolic flights. Using this technology, throughout the CNES parabolic flights campaign, organized by Novespace in spring 2022, we were able to observe neurons inside microfluidic devices and monitor their calcium activity during gravity changes over different parabolas. Our preliminary results clearly indicate a modification of the calcium activity associated to variations of gravity.
Recent increase in the surface mass balance in central East Antarctica is unprecedented for the last 2000 years
Authors: Ekaykin Alexey , Veres Arina 
Published: September 2023

Abstract
The Antarctic Ice Sheet (AIS) is the largest storage of ice on Earth, and its reaction on the continuing global warming is crucial to project the future sea level rise1. The increasing air temperature causes not only accelerating mass loss on the AIS’s margins, but also an increased surface mass balance (SMB) in its interior with a poorly known SMB-air temperature sensitivity2. A vast area of the AIS suffers from the lack of the SMB data. Here we present a new robust SMB dataset for the past 2200 years obtained from firn cores drilled in the vicinity of Vostok station (central East Antarctica), combined with the instrumental SMB data for the last 52 years. The new SMB time-series reveals the same ‘hockey stick’ shape as in other available cores: a slight decrease in the SMB till early 19 century followed by a sharp increase afterwards. The mean SMB value between 168 BCE and 1816 CE was 1.82 ± 0.05 g cm-2 year-1, while in 1970–2021 it was 2.25 ± 0.13 g cm-2 year-1. The latter value is unprecedented in the pre-industrial era. The temporal SMB variability correlates significantly with the local near-surface air temperature with the SMB-temperature sensitivity of 11–16% per 1°C.
Impact of post-COVID-19 olfactory disorders on quality of life, hedonic experiences and psychiatric dimensions in general population.
Authors: Dumas Louise-Emilie , Vandersteen Clair , Metelkina-Fernandez Victoria , Gros Auriane , Auby Philippe , Askenazy Florence 
Published: September 2023

Abstract
Background and objective: Olfactory disorders in COVID-19 alter quality of life and may cause psychic impairments. Olfactory disorders represent a prevalence between 8% to 85% and persist in up to 30% of COVID-19 cases. The main objective of this study is to evaluate the impact at 6 months of the post-COVID-19 olfactory disorders on quality of life, hedonic experiences and dimensions of anxiety and depression in general population. The second objective is to compare objective and subjective evaluations of olfactory disorders using these same criteria.
Methods: It was a prospective, longitudinal (baseline (T0) and 6 months (T1)) open-label cohort study. The study population persistent olfactory disorders post-COVID-19 for more than 6 weeks. Olfactory disorders were assessed with Sniffin' Sticks Test® (TDI score) and a Visual Analogue Scale. An Olfactive Disorder Questionnaire and the French version of the Quality of life and diet questionnaire were used to evaluate patients’ quality of life. Hedonic experiences were assessed with Snaith-Hamilton Pleasure Scale and Anxiety and Depression dimensions with The State-Trait Anxiety Inventory, The Post Traumatic Stress Checklist Scale and Hamilton Rating Scale for Depression. At T0 and T1, the study population was separated on “normosmic” (NG) and “olfactory disorder” (ODG) groups based on TDI score.
Results: 56 patients were recruited (58.93% women and 41.07% men) with 39.04 years old on average and post-COVID-19 olfactory disorder for an average of 5.32 months. At T1, the ODG have a significantly lower quality of life and hedonic experiences compared to the NG. There is no significant difference between the two groups for the dimensions of anxiety and depression. Objective and subjective assessments at T0 were significantly correlated with quality of life and hedonic experiences in both groups. At T1, the subjective evaluation of the NG was significantly correlated with all the criteria while the ODG only correlated with the hedonic experiences.
Conclusion: Patients with post-COVID-19 olfactory disorders persistent for more than 6 months presented a degraded quality of life and hedonic experience. The subjective evaluation influenced the quality of life and the dimension of anxiety and depression more than the olfactory disorder itself.
ClinicalTrials.gov number (ID: NCT04799977).
The Optical Behavior of Nano Filled Resin Composite Loaded With Graphene Oxide Nanoparticles
Authors: fathy Heba , Haroun Hassan , Riad Mona 
Published: September 2023

Abstract

Objectives Assessment of the effect of incorporation of graphene oxide nanoparticles (GONPs), different concentrations into resin composite with different thicknesses on its color modulation.Materials and methods GONPs were prepared with 0.05 wt.% and 0.2 wt.%. concentration. 10 mm diameter × 3mm height 70 nano-filled resin composite discs were prepared. 10 specimens of resin composite discs were prepared without GONPs incorporation and served as a control (G0). The other 60 specimens were divided into 2 equal groups (G1& G2) according to the concentration of the nanoparticles. Each group was divided into 3 equal subgroups according to the thickness of the resin composite containing GONPs; [T1: GONPs dispersed in the bottom 1 mm of the disc, T2: dispersed in the bottom 2 mm of the disc and T3: dispersed in the total thickness of the disc (3 mm)]. ∆E values were calculated using a Vita Easyshade Spectrophotometer.Results Incorporation of GONPs into resin composite induced significant color change and among the 6 experimental groups except for the G1T1 group showed a non-significant color change.Conclusion Dispersion of GONPs has a detectable effect on the color change of resin composite. Meanwhile, dispersion in low concentration for only the bottom 1mm thickness of resin composite has an undetectable effect on its color.
Discriminators of Antarctic Atmospheric River Environments
Authors: Baiman Rebecca , Winters Andrew , Pohl Benjamin , Favier Vincent , Wille Jonathan , Clem Kyle 
Published: September 2023

Abstract
Although rare, atmospheric rivers (ARs) substantially influence the interannual variability of Antarctic surface mass balance. We identify characteristics unique to AR environments by comparing (1) AR, (2) Analog (environments that feature high-low pressure couplets, similar to AR environments, but no AR), and (3) Top AR (high-precipitation AR timesteps) during 1980–2017 around Antarctica. We find significant differences between AR and Analog environments including more intense and poleward-shifted mid-tropospheric geopotential height couplets as well as larger atmospheric moisture anomalies. We find similar significant enhancement in synoptic-scale dynamic drivers of Top ARs compared to AR environments, but no significant difference in local integrated water vapor anomalies. Instead, our results highlight the importance of large-scale dynamic drivers of Top AR timesteps, including connections between high-precipitation ARs and Rossby waves excited by tropical convection. This deeper understanding of environments conducive to ARs provides context for interpreting future changes to the Antarctic surface mass balance.
Risk Factors for Mortality and Functional Status Among Survivors of Pediatric Acute Respiratory Distress Syndrome
Authors: Yang Yu-Hang , Zhang Tie-Ning , Wen Ri , Xu Wei , Wang Li-Jie , Gao Shan-Yan , Yang Ni , Liu Chun-Feng 
Published: September 2023

Abstract

Purpose
Although the mortality rate of pediatric acute respiratory distress syndrome (PARDS) continues to decrease, the increased incidence of clinical sequelae in survivors has become a focus of clinical practice. This study aimed to determine the functional status at hospital discharge among PARDS survivors using the Functional Status Scale and identify risk factors associated with its mortality.
Methods
We retrospectively collected and analyzed clinical data of patients with PARDS assessed upon admission and discharge from the pediatric intensive care unit of our hospital between January 2013 and January 2020. Patients were categorized into survival and non-survival groups for intergroup comparisons of clinical characteristics and therapeutic interventions.
Results
Of the 149 study participants, 96 (64.4%) died while hospitalized and 53 (35.6%) survived until discharge. Severe PARDS, defined as an oxygenation index score of ≥ 16, was an independent risk factor for mortality. Although surviving participants showed improvements in clinical status, the rate of new morbidity at discharge was 24.5%, with respiratory, feeding, and motor functions being the domains most affected.
Conclusion
Severe PARDS was an independent risk factor for mortality. Despite the survival of one out of three patients with PARDS, approximately a quarter of survivors experienced new morbidities after discharge. The most commonly affected functions included those related to respiration, feeding, and motor activity; therefore, special attention should be given to maintaining these functions in survivors.
The application of quality control in pulmonary ultrasound practice for residents
Authors: Zhang Bo , Zheng Yujin , Sun Zhe , Ma Jiaojiao , Xi Xuehua , Jia Xinying 
Published: September 2023

Abstract
Objective To explore the effect of quality control in the practice of lung ultrasound in residents.
Methods A quality control system of lung ultrasound was established by developing a standardized scanning protocol, theoretical and operational training, and quality scores to evaluate the practical effects of 14 residents who participated in lung ultrasound examinations of hospitalized patients during the COVID-19 pandemic from December 2022 to January 2023.
Results The average scores of according years of training for residents participating in lung ultrasonography gradually increased. Compared with the overall mean (7.73 ± 1.36 points), there was no statistically significant difference in the scores of first and second-year residents (7.41±1.58 points, 7.54±1.12 points, P > 0.05), and there was a statistically significant difference in the scores of third-year resident or above (8.79 ± 1.01 points, P< 0.05). First and second-year residents had problems such as too deep image depth, lack of body markers, and lack of some lung subdivisions.
Conclusion The establishment of a lung ultrasound quality control system makes residents master lung ultrasound and join the clinical practice, especially in ensuring the quality of ultrasound examination for junior residents.