bluuebunny/crossref_metadata_2025_split huggingface dataset:
Dynamic Correction of Forest Fire Spread Prediction using Observation Error Covariance Matrix Estimation Technique based on FLC-GRU
Authors: Wu Tianyu , zhang qixing , Zhu Jiping , Wu Jinhong , Dai Jinyang , Zhang Yongming 
Published: March 2024

Abstract

Background Data assimilation (DA) techniques have played a significant role in improving the prediction accuracy of forest fire spread. This dynamic correction technique enhances the analytical values that better reflect the fire situation by weighting the predicted values and observed values. The weighted importance of each contribution is determined by the magnitude of its associated error. However, as a crucial parameter affecting prediction accuracy, the covariance matrix of observation errors is often inaccurate and neglects its own temporal correlation. This is unfriendly to spread prediction results. To address this issue, we proposed a targeted technique for estimating the observation error covariance matrix (R matrix) based on the Fire Line Convolutional Gated Recurrent Unit (FLC-GRU).
Results We integrated this method into the DA framework and validated its applicability and accuracy using Observing System Simulation Experiment (OSSE). Through comparisons with traditional methods, the results indicate that using the FLC-GRU estimated R matrix for correction calculations leads to wildfire prediction locations that are closer to the true values.
Conclusions The proposed approach learns the covariance matrix directly from time-series observed fire line data, without requiring any prior knowledge or assumptions about the error distribution, in contrast to classical posterior tuning methods. The proposed method significantly improves the rationality and accuracy of R matrix estimation, enhances the utility of observational data, and thereby improves the correction accuracy of forest fire spread predictions. Moreover, the study also demonstrates the applicability of the proposed method within the DA framework.
Visualizing Conformance Control Mechanisms in High-Temperature Reservoirs: A Microfluidic Analysis of Pickering Emulsified Gel Systems
Authors: Saikia Tinku , Mejia Lucas , Sultan Abdullah , Balhoff Matthew , Hamad Jafar Al 
Published: March 2024

Abstract

In the context of mature oil fields, the management of conformance control and water shut-off stands out as a formidable challenge. Our prior research endeavors (Saikia et al., 2021, 2020) have introduced an innovative Pickering emulsified gel system tailored for the precise adjustment of relative permeability in high-temperature reservoirs. To optimize the efficiency of this system, a comprehensive comprehension of the underlying conformance control mechanism is deemed imperative. Traditionally, the exploration of conformance control mechanisms leans on empirical data culled from core flooding experiments, computerized tomography (CT) scans, nuclear magnetic resonance spectroscopy (NMR), and analogous methodologies. Nevertheless, these conventional avenues often fall short in delivering real-time visual analyses, thereby raising doubts about their reliability in predicting conformance mechanisms. In our research study, we have harnessed the capabilities of microfluidics to unlock real-time visual insights into the mechanisms governing conformance control. Employing two distinct glass micromodel geometries, we have conducted Pickering emulsified gel treatments at a scorching 105°C to achieve the targeted conformance control within these micromodels. By synergizing image and video analysis with injection pressure measurements, our findings have cast doubt on the previously posited Thin Film conformance control mechanism, revealing a more nuanced perspective on this intricate process.
Coating effect of Al2O3 on ZnMn2O4 cathode surface for lithium ion batteries
Authors: Liu Guangfu , Han Qing , Liu Kuiren 
Published: March 2024

Abstract
Zinc manganate (ZnMn2O4) with cluster spherical structure is prepared by low temperature coprecipitation method, and then coated with nano-sized Al2O3 via a wet chemical process. The as-prepared ZnMn2O4(ZMO), Al2O3-coated ZnMn2O4(ZMO-AlO) are characterized by X-ray diffraction, scanning electron microscopy and X-ray photoelectron spectroscopy. The scanning electron microscopy shows both the ZMO and ZMO-AlO form cluster spherical structure. X-ray photoelectron spectroscopy confrms that ZMO-AlO covered with a layer of Al2O3 particles. The ZMO and ZMO-AlO exhibit improved electrochemical performance. The initial discharge capacity is enhanced to 1228 mAh·g− 1 after the Al2O3 coating compared to the ZMO material that has an initial discharge capacity of 1140 mAh·g− 1. During the second charging and discharging process, the specific capacities of ZMO-AlO samples were 763 and 788 mAh·g− 1 respectively, with a coulombic efficiency of 96.8%. The charge-discharge specific capacities of ZMO samples are 760 and 715 mAh·g− 1 respectively, with a coulombic efficiency of 94.1%. By comparing the first and second charge discharge performance of ZMO and ZMO-AlO at a current density of 100 mA·g− 1, it can be found that ZnMn2O4 modified by Al2O3 coating has better electrochemical lithium storage performance.
Ameloblastic fibrosarcoma of the maxilla arising in an old woman, a rare case report and literature review
Authors: Liu Shiyue , Li Hong , Dong Youhong , Zhang Dongdong 
Published: March 2024

Abstract

Background
Ameloblastic fibrosarcoma (AFS) is a rare malignant odontogenic tumor, commonly occurring in adolescents and typically affecting the mandibular region. We report an exceptionally rare and highly atypical case of AFS in an elderly female patient originating from the maxillary bone.
Case presentation:
A 66-year-old woman was admitted to the hospital due to a left upper molar lump felt for two weeks. A CT scan suggested a maxillary bone cyst possibility.An incisional biopsy identified a spindle cell neoplasm within the soft tissues. Following an MRI, abnormalities were revealed in the left maxilla and its adjacent tissues, raising concerns about a tumorous lesion.The patient underwent subtotal maxillectomy, wide excision of the malignant tumor, intraoral epithelial flap transplantation, and dental extraction on June 15, 2023. Post-surgery histology exhibited atypical tumor cells arranged in bundles or woven patterns, with visible nuclear mitotic figures. Immunohistochemistry results indicated that tumor cells exhibited negative expression levels for PCK and CD34, while being positive for Vimentin and SMA. Additionally, the Ki-67 proliferation index ranged from 30–50% These findings suggested a potential malignant soft tissue tumor in the left maxilla, leaning towards AFS diagnosis. However, additional consultation was recommended due to the case's rarity, but the patient declined due to financial limitations. The patient received postoperative radiotherapy one month after surgery. She recovered well, with no recurrence recorded during a 6-month follow-up.
Conclusion
Based on repeated pathological evidence, we report a rare case of an elderly female with AFS originating from the maxillary bone. The patient underwent surgery and postoperative radiotherapy, resulting in a favorable treatment outcome.
Did the built environment attenuate reductions in leisure walking during COVID-19? A quasi-panel study
Authors: Naseri Mahsa , Delbosc Alexa , Kamruzzaman Liton 
Published: March 2024

Abstract

The COVID-19 pandemic caused decreased physical activity levels due to isolation, travel restrictions, and facility closure. This meant that walking remained the main option for individuals to sustain their physical well-being and mental health. This study examines changes in walking behaviour during the early years of the pandemic, and how such changes were affected by the built environment characteristics of Melbourne neighbourhoods over the period of lockdowns in 2020. By evaluating the impact of built environment characteristics on leisure walking patterns during the 2020 lockdowns, we provide insights into the interplay between the built environment and physical activity. We found that self-reported leisure walking decreased notably during the COVID-19 restrictions. The influence of the built environment on leisure walking remained consistent throughout the pandemic stages. Factors such as green space, residential density, and land-use diversity demonstrated associations with leisure walking. The presence of more green spaces was linked to higher rates of walking, while moderate residential density was associated with the highest walking rates. Surprisingly, more diverse locations showed lower levels of walking, potentially due to pandemic-related closures of non-essential businesses or limited access to green spaces in these areas. These findings emphasize the importance of considering built environment characteristics in promoting and maintaining physical activity levels, even during times of restricted movement.
Comparative associations of MASLD and MAFLD with the presence and severity of coronary artery calcification
Authors: Kang Min Kyu , Song Jeong , Loomba Rohit , Park Soo , Tak Won , Kweon Young , Lee Yu , Park Jung Gil 
Published: March 2024

Abstract

We aimed to compare the associations of metabolic dysfunction-associated steatotic liver disease (MASLD) and metabolic dysfunction-associated fatty liver disease (MAFLD) with coronary artery calcification (CAC). Patients who simultaneously underwent ultrasonography to diagnose hepatic steatosis and cardiac computed tomography to detect CAC were included. The presence and severity of CAC were defined with CAC-score thresholds of > 0 and > 300, respectively, and patients were divided into the following groups: no MASLD or MAFLD (reference), MASLD-only, MAFLD-only, and overlapping groups. Overall, 1,060/2,773 (38.2%) patients had CAC, of which 196 (18.5%) had severe CAC. The MASLD and MAFLD prevalence rates were 32.6% and 45.2%, respectively, with an overlap of 30.7%. In an ASCVD risk score-adjusted model, both MASLD (adjusted odd ratios [aOR], 1.21; 95% confidence interval [CI], 1.02–1.44; p = 0.033) and MAFLD (aOR, 1.20; 95% CI, 1.01–1.42, p = 0.034) were associated with CAC, whereas only MASLD (aOR, 1.38; 95% CI, 1.01–1.89, p = 0.041) was associated with severe CAC. Compared to the reference group, the overlapping group showed an association with CAC (aOR, 1.22; 95% CI, 1.01–1.47; p = 0.038); however, the MASLD and MAFLD subgroups did not differ in their association with CAC. MASLD may predict a higher risk of ASCVD more effectively than MAFLD.
Auto-Decomposition of Ag+ -Citrate Complex Leads to the Formation of Uniform Ag Shell on Citrate-Capped Gold Nanoparticles
Authors: Zhu Hu , Lin Mian , Li Huili , Xu Furong , Chen Chunbo , Yu Zhiqiang , Lee Bae Hoon 
Published: March 2024

Abstract
Bimetallic core-shell nanoparticles have emerged as a more economical and versatile platform that find applications in a wide range of fields such as biosensing, catalyst, and biomedicine. However, their synthesis by the popular seed-mediated growth method suffers from contamination by secondary seeds from heterogeneous nucleation and, thus, often requires combinational use of stabilizing agents and stringent kinetic control. Here, we report a seed-induced growth method for the synthesis of exclusively Au-Ag core-shell nanoparticles, where Ag+-citrate complex adsorbed on the surface of AuNP seeds automatically decomposed to form an ultrathin Ag shell. By studying the complexation process by dynamic light scattering and zeta potential, the shell formation kinetics by UV-visible spectroscopy, and the nanoparticle structure by transmission electron microscopy and energy dispersive spectroscopy, we identified that the Ag shell had a maximum thickness of around 3 nm, which was limited by the amount of adsorbed Ag+-citrate complex. Nonetheless, the obtained core-shell nanoparticles were highly uniform and free from secondary silver nanoparticle byproducts. Thus, this finding not only provides a simple and efficient avenue to but also offers novel insights for the synthesis of core-shell bimetallic nanoparticles.
Association between CACNA1C gene polymorphism rs1006737 and risk of Bipolar disorder: a meta-analysis
Authors: Cai Wenwen , Zhou Xia , Chen Yan , Gui Silan , Xu Yunshuai , Zhang Junqing , Cui Jian 
Published: March 2024

Abstract
The meta-analysis was to investigate the relationship between the calcium channel, voltage-dependent, L type, alpha 1C subunit (CACNA1C) gene polymorphism rs1006737 and risk of BP. The search was made in PubMed, Embase, Cochrane Library, and Web of Science databases until December 2023. This meta-analysis was conducted using Stata 14.0 software. The CACNA1C gene polymorphism rs1006737 showed a significantly higher risk with BP for the allele model (A vs. G: OR = 1.311, 95%CI = 1.148–1.497, p<0.000), codominant 1 model (GA vs. GG: OR = 1.356, 95%CI = 1.136–1.618, p = 0.001), codominant 2 model (AA vs. GG: OR = 1.474, 95%CI = 1.202–1.806, p<0.000), dominant model (GA + AA vs. GG: OR = 1.403, 95%CI = 1.181–1.667, p<0.000), recessive model (AA vs. GG + GA: OR = 1.324, 95%CI = 1.092–1.605, p = 0.004), and over dominant model (GG + AA vs. GA: OR = 0.807, 95%Cl = 0.680–0.958, p = 0.016). However, results from subgroup analysis showed a significant relationship between the CACNA1C gene polymorphism rs1006737 and BP risk in allele (A vs. G: OR = 1.326, 95%CI = 1.163–1.511, p<0.000), codominant 1 model (GA vs. GG: OR = 1.343, 95%CI = 1.109–1.627, p = 0.003), codominant 2 model (AA vs. GG: OR = 1.548, 95%CI = 1.256–1.907, p<0.000), dominant model (GA + AA vs. GG: OR = 1.411, 95%CI = 1.180–1.689, p<0.000), recessive model (AA vs. GG + GA: OR = 1.378, 95%CI = 1.131–1.679, p = 0.001) in Caucasian, but not in Asian.This meta-analysis suggests that CACNA1C gene polymorphism rs1006737 is associated with a higher risk of BP in the overall population and Caucasian population, but not in Asian population.
Long-Term Neurological Outcomes of Offspring
Misdiagnosed with Fetal Growth Restriction
Authors: Snir Amir , Zamstein Omri , Wainstock Tamar , Sheiner Eyal 
Published: March 2024

Abstract

Objective
Fetal growth restriction (FGR) is a major determinant of adverse short- and long-term perinatal outcomes. The current definition of FGR (estimated fetal weight measurement < 10th percentile) may lead, at times, to a false diagnosis of fetuses that are eventually born appropriate for gestational age (AGA). Our objective was to investigate the potential association between a misdiagnosis of antepartum fetal growth restriction and long-term neurological outcomes in offspring.
Study design
A population-based cohort analysis was performed including deliveries between the years 1991–2022 in a tertiary medical center. We compared neurological hospitalization during childhood among AGA infants falsely diagnosed as FGR versus AGA infants without a false FGR diagnosis. A Kaplan-Meier survival curve was used to assess cumulative morbidity and a Cox proportional hazards model was employed to control for confounders.
Results
During the study period, 324,620 AGA infants met the inclusion criteria; 3,249 of them were falsely classified as FGR. These offspring had higher rates of hospitalizations due to various neurological conditions, as compared to those without an FGR diagnosis (OR 1.431, 95% CI 1.278–1.608; P < 0.001). In addition, cumulative hospitalization incidence was elevated in the FGR group (log-rank P-value < 0.001). When controlling for confounders, a false FGR diagnosis remained independently associated with long-term neurological morbidities (adjusted HR, 95% CI 1.002–1.248, P < 0.001).
Conclusion
Misdiagnosis of FGR in the antepartum period is associated with an increased risk for offspring long-term neurological morbidities.
Impact of in-hospital COVID-19 quarantine policy changes on quality of acute stroke care: A single center experience
Authors: Kim Minkyung , Lee Keon-Joo , Kim Seong-Eun , Kim Hokyu , Kim Han Jun , Han Jung Hoon , Oh Kyungmi , Park Sung-Jun , Kim Chi Kyung , Cho Young-Duck 
Published: March 2024

Abstract

Background and purpose
The COVID-19 pandemic is known to impact in-hospital processes for acute stroke patients, potentially resulting in delays due to quarantine and screening measures. The purpose of this study was to determine effects of changes in in-hospital quarantine policies on quality of care for acute stroke patients.
Methods
Hyperacute ischemic stroke patients who were admitted to Korea University Guro Hospital between January 2019 and February 2021 via the emergency department were included in this study. All had neurological symptoms within six hours before arrival. As a mandatory COVID-19 real-time PCR screening test was implemented in March 2020, changes in quality indicators according to the progress of COVID-19 pandemic and changes in in-hospital quarantine policy, including door-to-image time (DIT), door-to-referral time, door-to-needle time (DNT), door-to-puncture time (DPT), and functional outcomes (discharge and 3-month modified Rankin's scale) were determined.
Results
A total of 268 hyperacute stroke patients were analyzed. The number of hyperacute stroke patients gradually decreased as the pandemic progressed. Time indicators, including door-to-referral time, DIT, and DPT during the pandemic were increased. When pre- and post-COVID-19 screening epochs were compared, DIT, door-to-neurologist referral time, and DPT showed numerical increases. However, after accounting for potential confounders, a significant delay in DIT was found to be associated with the in-hospital COVID-19 quarantine policy.
Conclusions
Our study showed that enhancing in-hospital COVID-19 quarantine measures might increase the response time for hyperacute stroke care, suggesting an impact on the quality of care.
Trial registration:
Not applicable.
Impact of Human Resource Management Practices on Employee Engagement: Evidence From Ethiopian Higher Educational Institutions
Authors: Gede Dawit udessa 
Published: March 2024

Abstract
This study aimed to investigate the effect of human resource management practices on employee engagement. Special emphasis was given to the establishment of a relationship between human resource management practices and employee engagement. The survey method was employed to collect data and the research was cross-sectional. Structural equation modeling was employed for data analysis. Confirmatory factor analysis and path analysis were employed to test the hypothesis. Data was collected from 365 employees of three Ethiopian universities. The findings of the study show that human resource management practice has a significant effect on employee engagement. The result also reveals that in an institution where human resource management implementation practices are perceived as positive; employee engagement level is high. This research attempted to establish the effects of human resource management on employee engagement and determine the role of human resource management in enhancing employee engagement in public institutions. Therefore, organizations need to focus on human resource management practices to make employees committed and engaged in their jobs. The result gives insight to managers on the importance of effective human resource management practices to improve the level of employee engagement towards their jobs.
Remotely monitored physical activity from older people with cardiac devices associates with physical functioning
Authors: Taylor Joanne K , Peek Niels , Greenstein Adam S , Sammut-Powell Camilla , Martin Glen P , Ahmed Fozia Z 
Published: March 2024

Abstract

Introduction Accelerometer-derived physical activity (PA) from cardiac devices are available via remote monitoring platforms yet rarely reviewed in clinical practice. We aimed to investigate the association between PA and clinical measures of frailty and physical functioning.Methods The PATTErn study (A study of Physical Activity paTTerns and major health Events in older people with implantable cardiac devices) enrolled participants aged 60 + undergoing remote cardiac monitoring. Frailty was measured using the Fried criteria and gait speed (m/s), and physical functioning by NYHA class and SF-36 physical functioning score. Activity was reported as mean time active/day across 30-days prior to enrolment (30-day PA). Multivariable regression methods were utilised to estimate associations between PA and frailty/functioning (OR = odds ratio, β = beta coefficient, CI = confidence intervals).Results Data were available for 140 participants (median age 73, 70.7% male). Median 30-day PA across the analysis cohort was 134.9 mins/day (IQR 60.8–195.9). PA was not significantly associated with Fried frailty status on multivariate analysis, however was associated with gait speed (β = 0.04, 95% CI 0.01–0.07, p = 0.01) and measures of physical functioning (NYHA class: OR 0.73, 95% CI 0.57–0.92, p = 0.01, SF-36 physical functioning: β = 4.60, 95% CI 1.38–7.83, p = 0.005).Conclusions PA from cardiac devices was associated with physical functioning and gait speed. This highlights the importance of reviewing remote monitoring PA data to identify patients who could benefit from existing interventions. Further research should investigate how to embed this into clinical pathways.
A Rare Presentation of multiple endocrine neoplasia with Concurrent Aldosterone-Producing Adrenal Adenoma: a case report
Authors: Liu Xiaoli , Zeng Kuanhong , Wang Lijuan , Cao Tingbin , Zhao Zhigang , He Hongbo , Xie Yangli , Yan Zhencheng , Li Li 
Published: March 2024

Abstract
Background
Multiple endocrine neoplasia type 1 (MEN1) is a disorder characterized by the occurrence of tumours in two or more endocrine glands of a patient. Coexistence of different endocrine tumors warrants additional screening for multiple endocrine neoplasia syndromes, especially in patients with adrenal apparent adenoma.
Case presentation
We present the case of a 52-year-old male was admitted to Army Specialty Medical Center because of neck pain that had persisted for 4 months and aggravated muscle pain for 3 days. After admission, the patient showed hypertension and hypokalemia. The plasma aldosterone levels increased, and the renin levels decreased. Adrenal contrast-enhanced CT showed a nodule shadow on the left external branch of the adrenal gland, suggesting the possibility of adrenal adenoma. Other imaging examination suggested that the patient had thyroid nodules, parathyroid nodules, pituitary microadenomasm. The adrenal vein sampling (AVS) results indicated dominant secretion from the left adrenal gland. The patient was diagnosed as: 1. Primary aldosteronism-induced hypertension; 2. multiple endocrine neoplasia; 3. rhabdomyolysis; 4. hyperlipidemia; 5. fatty liver disease; 6. lumbar disc herniation; 7. fascia inflammation of the lower back. The Whole-exome sequencing of the peripheral blood from the patient showed the heterozygous variant of the genes CACNA1D and MYH8. The patient was performed left adrenal resection surgery in the Urology Department. Postoperative pathological specimen examination suggested a (left adrenal tumor) cortical adenoma. He achieved complete biochemical success and partial clinical success.
Conclusions
Our findings confirm the need for careful genetic analysis of patients with MEN1 and establish a likely pathogenic role for the new heterozygous variant of the genes CACNA1D and MYH8, at least in the rare subset of MEN1 associated with primary aldosteronism.