bluuebunny/crossref_metadata_2025_split huggingface dataset:
A rare case of acute respiratory distress syndrome driven by parathyroid storm: a case report
Authors: Wu Changde , Chang Wei , Huang Minmin , Guo Lanqi , Fan Xiang , Yang Yi , Liu Ling 
Published: September 2023

Abstract
Background: Acute respiratory distress syndrome (ARDS) driven by parathyroid storm-associated hypercalcemiahas rarely been documented in the literature. This underreported complication leads to inappropriate management, resulting in uncertain outcomes.
Case presentation: We report a case of a 41-year-old female who presented with parathyroid storm and hypercalcemia-induced ARDS. Infection screens were negative. After receiving medical treatment with invasive ventilation and extracorporealmembrane oxygenation, her respiratory condition improved gradually. Her bronchoscopic lung biopsy pathology showed alveolar calcium deposition. A chestcomputed tomography scan also demonstrated improvement in pulmonary calcification, although it did not completely disappear even 2 months after blood calcium decreased to normal after radiofrequency ablation of parathyroid adenoma.
Conclusion: Although rare, unexplained respiratory failure in patients with parathyroid crisis-associated hypercalcemia should be considered for the possibility of ARDS due to hypercalcemia.
Association of Extracellular Fluid Excess with Choroidal Vascular Index in Patients with Chronic Kidney Disease.
Authors: Kang Minjae , Oh Jongrok , Kim Min , Byeon Suk Ho , Kim Sung Soo , Shin Joo Youn 
Published: September 2023

Abstract
Extracellular fluid (ECF) excess is common in patients with chronic kidney disease (CKD). This study (involving 284 patients with CKD) explored the association between choroidal vascularity index (CVI) and CKD. We categorized patients into three groups based on extracellular water/total body water: normal, mildly overhydrated, and severely overhydrated. The more severe ECF status was associated with a lower CVI after adjustment (B=-0.868, p=0.001). In non-diabetic patients, both vascular luminal (LA ) and stromal areas (SA) were significantly reduced in patients with severe ECF excess compared to others, whereas diabetic patients showed no significant differences in LA and SA based on ECF excess status. These findings suggest that ECF status may influence CVI in patients with CKD, underscoring the need for further research to clarify its direct impact on choroidal changes.
Study on Diagnosing Thyroid Nodules of ACR TI-RADS 4~5 with Multi-Modal Ultrasound Radiomics Technology
Authors: Wang Si-Rui , Zhu Pei-Shan , Li Jun , Chen Ming , Li Wen-Xiao 
Published: September 2023

Abstract

Background
Explore the feasibility of using multimodal ultrasound radiomics technology to diagnose ACR-TI-RADS 4 ~ 5 thyroid nodules.
Method
This study prospectively collected the clinical characteristics, conventional, and ultrasound elastography images of 100 patients diagnosed with ACR TI-RADS 4 ~ 5 nodules from May 2022 to May 2023. Independent risk factors for malignant thyroid nodules were extracted and screened using methods such as the least absolute shrinkage and selection operator (LASSO) logistic regression model, and a multimodal ultrasound radiomics combined diagnostic model was established. Using a multifactorial logistic regression analysis and a Rad-score rating, the predictive performance was validated and evaluated, and the final threshold range was determined to assess the clinical net benefit of the model.
Results
In the training set, the ultrasound radiomics combined predictive model (AUC = 0.928) had higher diagnostic performance compared to clinical characteristics (AUC = 0.779), conventional ultrasound (AUC = 0.794), and ultrasound elastography model (AUC = 0.852). In the validation set, the multimodal ultrasound radiomics combined diagnostic model (AUC = 0.829) also had higher diagnostic performance compared to clinical characteristics (AUC = 0.799), conventional ultrasound (AUC = 0.802), and ultrasound elastography model (AUC = 0.718).
Conclusion
Multi-modal ultrasound radiomics technology can effectively diagnose thyroid nodules of ACR TI-RADS 4 ~ 5, and the combination of radiomics signature and conventional ultrasound features can further improve the diagnostic performance.
Analysis the influence of the structure-fit-working parameters of the laminated coupling on the dynamic characteristics of the shaft system
Authors: Li Tao , Zhiqiang Huang , Chen Zhen , Wang Jie , Wang Cheng 
Published: September 2023

Abstract
The torsional vibration phenomenon of the crankshaft system can trigger faults such as burnt tile and flywheel deformation. The coupling is an important structure for regulating the torsional vibration of a shaft system. Most of the literature has only studied the effects of coupling misalignment, damping nonlinearity and excitation nonlinearity on the torsional response of the system, while ignoring the vibration bifurcation caused by the coupling structure and fit parameters. To address the above limitations, this paper establishes a torsional vibration mechanics model of crankshaft-coupling-rotor based on Lagrange dynamics. Mathematical models of coupling inclination angle, excess and torsional stiffness are constructed using the finite element method. The effects of coupling inclination angle, excess and angular velocity on the vibration bifurcation of the shaft system are discussed separately by the 4th order Runge-Kutta methods. The results show that with the increase of the inclination angle, the vibration state of the shaft system switches between chaos and divergence, which is not conducive to the torsional vibration control of the shaft system. At the same time, the increase in the excess will lead to an increase in the angular velocity of vibration, which in turn will lead to increased wear of the shaft system and bearings. In addition, after considering the nonlinear characteristics of the coupling stiffness, the vibration amplitude of the shaft system rises with the increase of the angular velocity, and the vibration state transforms from periodic to divergent. Finally, a coupling field vibration test study was carried out to verify the accuracy of the numerical model.The research results of this paper have theoretical reference value for determining the coupling structure-fit parameters and the angular velocity of the shaft system.
Prediction of Foot Soft Tissue Stiffness Based on Plantar Pressure During Walking
Authors: Bai Xiaotian , Lv Dazhi , Wei Jialin , Song Yiling , Tang Zhengyan , Huo Hongfeng , Liu Jingmin 
Published: September 2023

Abstract
Purpose: To predict foot soft tissue stiffness based on plantar pressure characteristics during walking using a neural network model, and the association between plantar pressure features and foot soft tissue stiffness was examined utilizing mean impact value analysis.
Methods: 30 male subjects were recruited. A foot pressure measurement system was used to collect average pressure data from different foot regions during 5 trials of walking for both feet. Foot soft tissue stiffness was recorded using a MyotonPRO biological soft tissue stiffness meter before each walking trial. Intraclass correlation coefficient was used to evaluate within-session reliability for each measurement. A backpropagation neural network, optimized by integrating particle swarm optimization and genetic algorithm, was constructed to predict foot soft tissue stiffness using plantar pressure data collected during walking. Mean impact value analysis was conducted in parallel to investigate the relative importance of different plantar pressure features.
Results: All parameters except average pressure in the 4th metatarsal region demonstrated moderate to high within-session reliability. For the training set, the maximum relative error percentage between predicted and actual data was 7.82%, average relative error percentage was 1.98%, mean absolute error was 9.42 N/m, mean bias error was 0.77 N/m, and root mean square error was 11.89 N/m. For the test set, maximum relative error percentage was 7.35%, average relative error percentage was 2.55%. Mean absolute error, mean bias error and root mean square error were 12.28 N/m, -4.43 N/m, and 14.73 N/m, respectively. Regions with highest contribution rates to foot soft tissue stiffness prediction were the 3rd metatarsal (13.58%), 4th metatarsal (14.71%), midfoot (12.43%) and medial heel (12.58%) regions, which accounted for 53.3% of total contribution.
Conclusions: The optimized algorithm developed in this study can effectively predict foot soft tissue stiffness from regional plantar pressures during walking. Pressures in the medial heel, midfoot, 3rd and 4th metatarsal regions during walking best reflect foot soft tissue stiffness. Future studies are suggested to develop subject-specific prediction models for different foot types and foot conditions based on biomechanical characteristics during actual movements.
Climate and environmental history of Laguna Polo, Santa Cruz, Southern Patagonia (49 °S) since 1300 AD
Authors: Charqueño-Celis Fernanda , Dubois Nathalie , Zolitschka Bernd , Pérez Liseth , Mayr Christoph , Massaferro Julieta 
Published: September 2023

Abstract
Patagonia is located in a unique area for climate studies. It is exposed to the strong Southern Hemisphere Westerly Winds (SWW), which are modulated by the Southern Annular Mode (SAM) and is also directly affected by volcanic eruptions of the Andes Mountain Range. In addition, Patagonia is rich in lacustrine environments, which are ideal for paleocological and palaeoclimatological reconstructions. These characteristics make it an ideal location to study not only the effects of global climate change, but also the impact of local volcanic activities on these still pristine freshwater ecosystems. Here, we present a high-resolution paleolimnological reconstruction using testate amoebae and chironomid assemblages along with organic and inorganic sediment geochemistry (Ca, K, Ti, N, TOC, TOC/N δ15N, δ13C) in a sediment core from Laguna Polo (49 °S, Santa Cruz, Argentina) covering the last 1300 yrs AD. Our results show a warm-dry productive environment at ca. 1300-1420 AD associated to the Medieval Climate Anomaly, colder and less productive environments at the time of the Little Ice Age (LIA: 1420-1720 AD) followed by high volcanic activity affecting the lake water mixing at ca. 1700-1960 AD. Finally, warm-stenothermic chironomid species indicate a progressive increase in temperature since 1960 AD. Thus, the sediments of Laguna Polo provide an excellent opportunity to study the responses of aquatic communities to major climatic and environmental events.
Intention to Use eLearning-based Continuing Professional Development and its Predictors among Healthcare Professionals in Amhara Region Referral Hospitals, Ethiopia, 2023: Using modified UTAUT-2 model
Authors: Kelkay Jenberu Mekurianew , Anteneh Deje Sendek , Wubante Sisay Maru , Takilo Mitiku Kassaw , Gebeyehu Chernet Desalegn , Gashu Kassahun Dessie , Alameraw Temesgen Ayenew 
Published: September 2023

Abstract

Background:Continuing Professional Development (CPD) is provided through in-service programs organized based on competency development and lifelong learning for healthcare professionals to stay fit with the required knowledge and skills. But, healthcare professionals’ financial constraints and tight schedules sending them away from the workplace for CPD training is a challenge. eLearning is becoming the best solution to overcome those barriers and create accessible, efficient, flexible, and convenient professional development. However, evidence is limited on health professionals’ intention to use eLearning-based CPD and its predictors. Hence this study was aimed toassess healthcare professionals’ intention to use eLearning-based CPD and its predictors in Amhara region referral hospitals, Ethiopia 2023.
Methods:A cross-sectional study was conducted from March 28 to April 28, 2023. A total of 976 healthcare professionals participated in this study. Proportional allocation and a simple random sampling were used to select participants of the study. UTAUT2 model was applied to develop a theoretical framework. A structured self-administered questionnaire was used and a 5% pretest was performed. Data were entered into Epi data 4.6 and exported to SPSS 26 for descriptive analysis. AMOS 23 SEM was also used to describe and assess the degree and significance of relationships between variables.
Results: About 51.8% (506/976) (95% CI: 48.7-55.0) of participants have the intention to use the eLearning for CPD. Performance expectancy (β=0.233, p-value<0.01), effort expectancy (β=0.082, p-value<0.05), facilitating condition (β=0.102, p-value<0.05), hedonic motivation (β=0.199, P-value<0.001), habit (β=0.473, P-value<0.001), and computer literacy (β=0.116, p-value<0.001)had a positive relationship with intention to use eLearning based CPD. Age and gender were also a moderator of habit to use eLearning based on CPD.
Conclusion and recommendation: Overall, healthcare professionals' intention to use eLearning-based CPD was found low. Performance expectancy, effort expectancy, facilitating condition, hedonic motivation, habit, and computer literacy had a significantly positive influence on intention to use eLearning-based CPD. The development of a user-friendly eLearning-based CPD development that meets user expectations can enhance the intention to use.
Biological Evolution Learning and Computational Thinking: Enhancing Understanding through the Levels of Biological Organization and Computational Complexity
Authors: Christensen Dana , Lombardi Doug 
Published: September 2023

Abstract
Research on exploring the relationship between computational thinking and domain specific knowledge gains (i.e. biological evolution) are becoming more common in science education research. The mechanisms behind these relationships are not well understood, particularly between computational practices and biological evolution content knowledge. Increased computational complexity (i.e. simple to complex) may support a greater comprehension of scales or levels of biological organization (i.e. micro to macro) within the context of biological evolution learning. We made use of both qualitative and quantitative methods to identify which biological levels of organization students addressed, how students made connections between these levels and the level of computational complexity displayed during evolution learning with the use of two computational interventions. The aim of this study was not only exploring the biological levels and biological level connections made during the computational thinking interventions, but also analysis of the differences between these two interventions. The results illuminated that use of specific biological levels, biological level connections and differences in computational complexity were distinguishable and there were significant differences between the interventions. These factors may contribute to better understanding of biological evolution knowledge gains.
The Assessment of the Impact of the Omicron Variant in Pediatric COVID-19 Patients with Seizures
Authors: Korkmaz Muhammet Furkan , Özay Hatice Buket , Toker Rabia Tütüncü 
Published: September 2023

Abstract
Purpose: This study was carried out to compare the demographic, laboratory, neurodiagnostic, and clinical characteristics of children with seizures infected with coronavirus disease 2019 (COVID-19) during the period when the Omicron variant of concern (VOC) was the dominant VOC with those of the children infected with seizures infected with COVID-19 during the period prior to the emergence of the Omicron variant.
Methods: The population of this retrospective observational cohort study consisted of totally 58 pediatric patients who had seizures and were diagnosed with COVID-19 between March 15th, 2020, and August 31st, 2022.
Results: The median frequency of seizures during the follow-up period was 2 (min. 1, max. 7). Focal seizures were observed in four (7%) patients. There was no significant difference between the Omicron and pre-Omicron VOC groups in the demographic and clinical characteristics at admission and seizure findings (p>0.05). Excluding the patients with known neurological disease, the majority of the patients were under the age of six, and 84% were diagnosed with febrile convulsions. There was no significant difference between the groups in treatment protocols, diagnosis types, and clinical outcomes (p>0.05).
Conclusion: The increase in seizures observed in children infected with COVID-19 during the last stages of the pandemic was associated with the Omicron VOC, which was the dominant VOC in this period. Nevertheless, the study findings indicated that the impact of the Omicron VOC was not more severe in children with seizures than in those infected with other COVID-19 variants.
Exploring the potential of growing energy crops and then producing liquid fuels in marginal land: A China scenario
Authors: Li Xueqin , Liu Peng , Wang Zhiwei , Yang Shuhua , Yang Yantao , Taoli Huhe , Tanglei Sun , Tingzhou Lei 
Published: September 2023

Abstract
To explore the potential of growing energy crops and then producing liquid fuels in marginal land in China, in this paper, the status quo of existing biomass resources and marginal land utilization in China have been first analyzed and the development process of biomass liquid fuels has then been reviewed. Through the investigation, we have found that alternative fuels such as bio-diesel, bio-based alcohols, ethers, and esters will be the current and future research focuses. Secondly, using ethyl levulinate (EL) as our research subject, we have explored the production capacity of growing energy crops in marginal land and their potential to prepare liquid fuels. Then, the carbon sequestration of energy crops, the carbon emissions of liquid fuels, and the influence of liquid fuels on land use changes have been deeply analyzed. This study has revealed that the potential of sweet sorghum, cassava, jatropha curcas, and switchgrass cultivation in China in producing is 75.76 million tonnes, 1.52 million tonnes, 4.57 million tonnes, and 5.16 million tonnes, respectively. Among these crops, sweet sorghum and switchgrass have a higher production capacity and are more suitable to be planted on marginal land and used to produce liquid fuels. The planting of these two crops has absorbed about a 111.11million tonnes and 7.57 million tonnes of carbon dioxide (CO2), respectively, presenting significant carbon sequestration and oxygen-producing effects. Finally, the problems in developing marginal land have been summarized. Furthermore, we have proposed policy recommendations for marginal land development, energy crop cultivation, and liquid fuel development suitable for Chinese conditions, hoping to provide essential data for China's land restoration and biomass liquid fuel development.
Phylogenetic and morphological studies reveal large diversity and three new species in Amanita sect. Vaginatae (Agaricales, Basidiomycota) from Europe
Authors: Varga Dóra , Hanss Jean-Michel , Moreau Pierre-Arthur , Kovács Gábor M. , Dima Bálint 
Published: September 2023

Abstract
European members of the species-rich sect. Vaginatae of the genus Amanita are studied focusing on Central (Austria, Hungary, N Italy, Romania), Western (France) and North European (Norway) collections. The combination of a 4-locus (nrDNA ITS, nrDNA LSU, rpb1 and tef1-α) molecular phylogenetic analysis and a morphological approach resulted in the discovery of three new species: Amanita deflexa and A. griseofulva from stirps Fulva and A. opaca from stirps Coryli. Furthermore, the albinotic white forms of A. griseofulva (f. albida) and A. opaca (f. cettoi) are formally named. As a result of the comprehensive taxonomic revision of Amanita sect. Vaginatae, 370 newly generated sequences are deposited to GenBank and 17 species new to Hungary are reported. This study provides another step towards understanding the taxonomy and diversity of Amanita section Vaginatae in Europe.
Archaeometric analysis of a Roman sculptural group from Asido (Medina Sidonia, Cádiz, Spain)
Authors: Ontiveros-Ortega Esther , Loza-Azuaga María Luisa , Beltrán-Fortes José , Montañés-Caballero Salvador Montañés 
Published: September 2023

Abstract
This paper presents the results of the archaeometric study of 19 Roman sculptures of the Imperial period from the colonia of Asido Caesarina (present-day Medina Sidonia, Cádiz, Spain). The samples have been analyzed from a mineralogical, petrographic and geochemical perspective, complemented by δ13C and δ18O isotopic data. The physical and compositional characteristics of these marbles have been compared with reference quarry samples from the South of Hispania and some of the main Mediterranean white marbles, and with the data from archaeological elements made with foreign marbles previously identified in other Roman cities of Baetica. The application of a multi-method approach has made it possible to establish criteria for the differentiation between these marbles, in which geochemical and isotopic data play a key role. Surprisingly, from the archaeological point of view, the results indicate the majority use of imported marbles from Paros and Luni-Carrara.
Beyond Log-Concavity: Theory and Algorithm for Sum-Log-Concave Optimization
Authors: Achab Mastane 
Published: September 2023

Abstract
This paper extends the classic theory of convex optimization to the minimization of functions that are equal to the negated logarithm of what we term as a “sum-log-concave” function, i.e., a sum of log-concave functions. In particular, we show that such functions are in general not convex but still satisfy generalized convexity inequalities. These inequalities unveil the key importance of a certain vector that we call the “cross-gradient” and that is, in general, distinct from the usual gradient. Thus, we propose the Cross Gradient Descent (XGD) algorithm moving in the opposite direction of the cross-gradient and derive a convergence analysis. As an application of our sum-log-concave framework, we introduce the so-called “checkered regression” method relying on a sum-log-concave function. This classifier extends (multiclass) logistic regression to non-linearly separable problems since it is capable of tessellating the feature space by using any given number of hyperplanes, creating a checkerboard-like pattern of decision regions.
On the role of aortic valve architecture for physiological haemodynamics and valve replacement. Part I: flow topology and vortex dynamics
Authors: Corso Pascal , Obrist Dominik 
Published: September 2023

Abstract
Aortic valve replacement has become a growing concern due to the increasing prevalence of aortic stenosis in an ageing population. Existing replacement options have limitations, necessitating the development of improved prosthetic aortic valves.In this study, flow characteristics during systole in a stenotic aortic valve case are compared with those downstream of two newly designed surgical bioprosthetic aortic valves (BioAVs) using advanced simulations. Our findings reveal that the stenotic case maintains a high jet flow eccentricity due to a fixed orifice geometry, resulting in increased vortex stretching in the commissural low-flow regions. One BioAV design introduces non-axisymmetric leaflet motion, which reduces the maximum jet velocity and forms more vortical structures. The other BioAV design produces a fixed symmetric triangular jet shape due to non-moving leaflets and exhibits favourable vorticity attenuation and significantly reduced drag. Therefore, this study highlights the benefits of custom-designed aortic valves in the context of their replacement through comprehensive flow analyses. The results emphasise the importance of analysing jet flow, vortical structures, momentum balance and vorticity transport for evaluating aortic valve performance.