bluuebunny/crossref_metadata_2025_split huggingface dataset:
Association of general and central obesity, and their changes with risk of knee osteoarthritis: a nationwide population-based cohort study
Authors: Park Dojoon , Park Yong-Moon , Ko Seung-Hyun , Hyun Kang-Se , Choi Youn-Ho , Min Dong-Uk , Han Kyungdo , Koh Hae-Seok 
Published: March 2023

AbstractIn this study, we aimed to evaluate the association between general and central obesity, and their changes with risk of knee osteoarthritis (OA) using retrospective cohort data collected from the Korean National Health Insurance Service. We studied 1,139,463 people aged 50 and over who received a health examination in 2009. To evaluate the association between general and/or central obesity and knee OA risk, a Cox proportional hazard models were used. Additionally, we investigate knee OA risk according to the change in obesity status over 2 years for subjects who had undergone health examinations for 2 consecutive years. General obesity without central obesity (HR 1.281, 95% CI 1.270–1.292) and central obesity without general obesity (HR 1.167, 95% CI 1.150–1.184) were associated with increased knee OA risk than the comparison group. Individuals with both general with central obesity had the highest risk (HR 1.418, 95% CI 1.406–1.429). This association was more pronounced in women and younger age group. Remarkably, the remission of general or central obesity over two years was associated with decreased knee OA risk (HR 0.884; 95% CI 0.867–0.902; HR 0.900; 95% CI 0.884–0.916, respectively). The present study found that both general and central obesity were associated with increased risk of knee OA and the risk was highest when the two types of obesity were accompanied. Changes in obesity status have been confirmed to alter the risk of knee OA.
A new hybrid algorithm for three-stage gene selection based on whale optimization
Authors: Liu Junjian , Qu Chiwen , Zhang Lupeng , Tang Yifan , Li Jinlong , Feng Huicong , Zeng Xiaomin , Peng Xiaoning 
Published: March 2023

AbstractIn biomedical data mining, the gene dimension is often much larger than the sample size. To solve this problem, we need to use a feature selection algorithm to select feature gene subsets with a strong correlation with phenotype to ensure the accuracy of subsequent analysis. This paper presents a new three-stage hybrid feature gene selection method, that combines a variance filter, extremely randomized tree, and whale optimization algorithm. First, a variance filter is used to reduce the dimension of the feature gene space, and an extremely randomized tree is used to further reduce the feature gene set. Finally, the whale optimization algorithm is used to select the optimal feature gene subset. We evaluate the proposed method with three different classifiers in seven published gene expression profile datasets and compare it with other advanced feature selection algorithms. The results show that the proposed method has significant advantages in a variety of evaluation indicators.
The lack of keratinized mucosa as a risk factor for peri-implantitis: a systematic review and meta-analysis
Authors: Mahardawi Basel , Jiaranuchart Sirimanas , Damrongsirirat Napat , Arunjaroensuk Sirida , Mattheos Nikos , Somboonsavatdee Anupap , Pimkhaokham Atiphan 
Published: March 2023

AbstractThis study aimed to investigate the effect of the lack of keratinized mucosa on the risk of peri-implantitis, while also accounting for possible confounding factors. A literature search was conducted in PubMed and Scopus, including human studies that assessed the presence and width of keratinized mucosa in relation to the occurrence of peri-implantitis. Twenty-two articles were included, and 16 cross-sectional studies we meta-analyzed. The prevalence of peri-implantitis was 6.68–62.3% on patient-level and 4.5–58.1% on implant-level. The overall analysis indicated that the lack of keratinized mucosa was associated with a higher prevalence of peri-implantitis (OR = 2.78, 95% CI 2.07–3.74, p < 0.00001). Similar results were shown when subgroup analyses were performed, including studies with a similar case definition of peri-implantitis (Marginal Bone Loss, MBL ≥ 2 mm) (OR = 1.96, 95% CI 1.41–2.73, p < 0.0001), fixed prostheses only (OR = 2.82, 95% CI 1.85–4.28, p < 0.00001), patients under regular implant maintenance (OR = 2.08, 95% CI 1.41–3.08, p = 0.0002), and studies adjusting for other variables (OR = 3.68, 95% CI 2.32–5.82, p = 0.007). Thus, the lack of keratinized mucosa is a risk factor that increases the prevalence of peri-implantitis and should be accounted for when placing dental implants.
Ecological sustainability and high-quality development of the Yellow River Delta in China based on the improved ecological footprint model
Authors: Wei Zhongyong , Jian Zhen , Sun Yingjun , Pan Fang , Han Haifeng , Liu Qinghao , Mei Yuang 
Published: March 2023

AbstractAiming at the traditional ecological footprint model, the improved ecological footprint of the carbon footprint effectively makes up for the singularity of the ecological footprint's consideration of carbon emissions, and plays an important role in promoting high-quality development and ecological sustainability. This paper selects 2015, 2018 and 2020 as important time points for the study, corrects the ecological footprint parameter factors based on net primary productivity (NPP), measures the ecological footprint after the improvement of the carbon footprint, studies the spatial and temporal variation in the ecological footprint at the 100-m grid scale with the support of IPCC greenhouse gas inventory analysis, and analyzes the current ecological conservation status of the Yellow River Delta. Additionally, in the context of a low carbon economy, the decoupling index of carbon emissions and GDP is extended to the evaluation and analysis of high-quality development. The study showed that (1) the ecological footprint of the Yellow River Delta has increased year by year, from 0.721 hm2·person− 1 to 0.758 hm2·person− 1, an average annual increase of 2.9%; the ecological carrying capacity has decreased from 0.40 hm2·person− 1 to 0.31 hm2·person− 1, an overall decrease of 28.59%. (2) The overall ecological deficit of the Yellow River Delta grid is lightly overloaded, with most of the ecological surplus occurring in the northern and eastern parts of the study area and a few moderate and heavy overloads in the center of the core area where there is a lot of built-up land and the area is small and easy to gather. (3) Based on the low-carbon economy analysis, 2015, 2017 and 2020 reach absolute decoupling and are in the ideal scenario. However, in the rest of the years, carbon emissions and economic development are still in a large contradiction, and decoupling has fluctuated and varied greatly in the last six years. The effective combination of ecological footprint and low carbon economy analysis provides an important theoretical basis for improving ecological conservation and achieving high-quality development.
Thermal stability assessment of calcium monosulfoaluminate 12-hydrate by applying the in-situ X-ray diffraction method at 25–1250 °C
Authors: Rubinaite Dovile , Dambrauskas Tadas , Baltakys Kestutis , Hilbig Harald , Siauciunas Raimundas 
Published: March 2023

AbstractIn this study, the stability of synthetic calcium monosulfoaluminate and the reaction mechanism of its conversion into ye`elimite during the thermal treatment were examined. The monosulfoaluminate was produced referring to ye`elimite stoichiometry by applying the mechanochemical treatment (dry grinding at 900 rpm with 3 on–off cycles of 10 min) followed by the hydrothermal synthesis (for 8 h at 110 °C). The data indicated that the prepared sample consists of Ms12 (~ 54.8%), CaCO3 (~ 1.9%), Ms10.5/Hc (~ 0.7%) and amorphous content (~ 42.6%). Meanwhile, the thermal stability assessment by in-situ XRD analysis reveals that the dehydration of monosulfoaluminate interlayer water proceeds at 25–370 °C, where four different hydration states of monosulfoaluminate are identified. Additionally, the results suggest that the removal of water molecules from the main (octahedral) layers begins at ~ 200 °C. Finally, at 700–1250 °C, the solid-state reactions between CŜ, CA and CaO are observed, generating the formation of ye`elimite.
Fast on–off controlling of electrohydrodynamic printing based on AC oscillation induced voltage
Authors: Chen Huatan , Chen Junyu , Jiang Jiaxin , Shao Zungui , Kang Guoyi , Wang Xiang , Li Wenwang , Liu Yifang , Zheng Gaofeng 
Published: March 2023

AbstractStability control of electrohydrodynamic (EHD) printing technology is urgent needed for efficient fabrication of flexible electronics. In this study, a new fast on–off controlling technology for micro droplets of EHD is proposed by applying an AC induced voltage. The suspending droplet interface is broken through quickly, and the impulse current can be significantly reduced from 527.2 to 50.14 nA, which greatly reduces its negative impact on jet stability. What’s more, time interval of jet generation can be shortened by a factor of three, while not only significantly improving the uniformity of the droplets, but effectively reducing the droplet size from 195 to 104 μm. Moreover, the controllable and mass formation of micro droplets are realized, but also the structure of each droplet is able to be controlled independently, which promoted the development of EHD printing technology in more fields.
Seasonal variation in morphotype composition of pelagic Sargassum influx events is linked to oceanic origin
Authors: Alleyne Kristie S. T. , Johnson Donald , Neat Francis , Oxenford Hazel A. , Vallѐs Henri 
Published: March 2023

AbstractThe recent proliferation of pelagic Sargassum spp. in the Tropical Atlantic causes major ecological and socioeconomic impacts to the wider Caribbean when it washes ashore, with regional fisheries and tourism industries particularly affected. The Caribbean influxes have been tracked to a new bloom region known as the North Equatorial Recirculation Region (NERR) encompassing the area between the South Equatorial Current and the North Equatorial Counter Current and extending from Africa to South America. The vast biomass of Sargassum presents serious problems when it washes ashore but also represents significant commercial opportunities, especially with biofuel and fertilizer. The floating Sargassum mats are themselves diverse ecosystems that vary both in their biodiversity and biochemical attributes. Two major species (Sargassum fluitans and S. natans) have been identified as well as several distinguishable morphotypes of each. Oceanic mixing tends to blend the morphotypes together making it difficult to determine if there are regions of the NERR that favour bloom and growth of the distinct types. In this study, we quantify the species and morphotype composition of Sargassum strandings in Barbados and test if this is related to separate oceanic origins and routes travelled using a backtracking algorithm based on ocean drifter data. We found significant seasonal variation in the relative abundance of three morphotypes and this could be traced to two distinct easterly sub-origins and/or transport pathways; one area around 15° N that travels directly E–W across the Atlantic, and another area generally south of 10° N that takes a more meandering route coming close the coast of South America. These findings contribute towards our understanding of why the Tropical Atlantic bloom is presently occurring as well as towards addressing valorisation constraints surrounding variation in the supply of the three commonly occurring morphotypes.
Exploring the Sentence Length and Age of Acquisition of Speech Recognition Test Sentences in Dutch, American English, and Canadian French
Authors: van der Hoek-Snieders Hanneke E. M. , Rhebergen Koenraad S. 
Published: March 2023

Purpose:
The purpose of this study was to examine the differences between the age of acquisition (AoA) and sentence length of sentences of the speech recognition (SR) tests for adults and children in Dutch, American English, and Canadian French.

Method:
The AoA and sentence length of the sentences of four SR tests for adults and children were determined. One-way analyses of variance were performed to assess differences between the tests.

Results:
The AoA and sentence length of the sentences significantly differed between the SR tests for adults. These differences were also found between the SR tests for children.

Conclusions:
The AoA and the sentence length differ across the SR tests in Dutch, American English, and Canadian French. The Dutch sentences have higher AoA and are longer than the sentences in American English and Canadian French. The effect of the linguistic complexity on sentence repetition accuracy should be investigated during the development and validation of a Dutch SR test for children.
Dark light enhancement for dark scene urban object recognition
Authors: Zhou Xiao , Du Xiaobiao , Ru Peizhe 
Published: March 2023

AbstractThis paper presents a low‐light image enhancement method to improve the performance of autonomous piloting tasks based on deep learning methods. In the low light environment, camera sensors cannot capture enough effective photon signals causing poor performance in vision‐based autonomous piloting. Moreover, the lack of training data makes single‐frame low‐light enhancement and denoising algorithms hard to generalize in real‐world scenarios. By analyzing the noise patterns of real‐world cameras under low‐light environments, a noise generation method is proposed to mimic real‐world dark‐light noise and generate noisy‐clean data pairs for training. A method that can calibrate the camera shot noise parameters is then designed to learn low‐light enhancement from the synthesized noisy data pairs. The neural network trained on a synthesized dataset can effectively enhance the dark light image quality. Consequently, the network improves the downstream auto‐piloting applications such as object detection and semantic segmentation. Qualitative and quantitative experiments have been conducted to demonstrate that the method outperforms previous methods in low‐light enhancement.
Parametric scatterer extraction method for space‐target inverse synthetic aperture radar image CLEAN
Authors: Zhang Xiongkui , Cui Jing , Wang Junling , Sun Chang , Zhu Zhaokun , Wang Fang , Ma Yan 
Published: March 2023

AbstractOwing to the time variance of the inverse synthetic aperture radar (ISAR) imaging plane of space targets, scatterers with large heights relative to the imaging plane migrate through several Doppler cells. This defocussing in the azimuth direction of each scatterer cannot be compensated via the traditional migration through the resolution cell (MTRC) compensation method because the height of each scatterer is quite different and independently distributed in the ISAR image. In this study, a parametric azimuth‐defocussing model‐based CLEAN method is proposed for the space‐target ISAR image. First, high‐order defocus parameters and their influences on the image of space targets were analysed at different arc segments. Subsequently, a mathematical azimuth‐defocussing expression of the ISAR image scatterers was derived after MTRC and azimuth high‐order phase compensation, and an approximate defocus expression based on the Fresnel integral was provided for computational efficiency. This model can estimate the complex amplitude, coordinates and defocus parameters of each scatterer in the image domain by applying a sequential quadratic programing algorithm. Finally, the validity and stability of the proposed algorithm for the isolated and coupled scatterer extraction were verified at different signal‐to‐noise ratios, and different defocus parameters were verified through simulations.
Chemical characterisation of the X-shooter Spectral Library (XSL): [Mg/Fe] and [Ca/Fe] abundances
Authors: Santos-Peral P. , Sánchez-Blázquez P. , Vazdekis A. , Palicio P. A. 
Published: March 2023

Context. The X-shooter Spectral Library (XSL) is a large empirical stellar library used as a benchmark for the development of stellar population models. The inclusion of α-element abundances is crucial to disentangling the chemical evolution of any stellar system.
Aims. The aim of this paper is to provide a catalogue of high-precision, accurate magnesium and calcium abundances from a wide variety of stars that are well distributed in the Hertzsprung-Russell (HR) diagram.
Methods. We originally performed an analysis of the derived Mg and Ca abundances for medium-resolution spectra of 611 stars from the XSL Data Release 2. For this purpose, we used the GAUGUIN automated abundance estimation code to fit the ultraviolet-blue (UVB) and visible (VIS) spectra. We tested the consistency of the atmospheric parameters and chemical abundances with the Gaia DR3 and the AMBRE Project datasets.
Results. We finally obtained precise [Mg/Fe] and [Ca/Fe] abundances for 192 and 217 stars, respectively, from which 174 stars have measurements in both elements. The stars cover a broad effective temperature range of 4000 < Teff < 6500 K, surface gravity of 0.3 < log(g) < 4.8 cm s−2, and metallicity of −2.5 < [Fe/H] < +0.4 dex. We find an excellent agreement with the abundance estimates from the AMBRE:HARPS and the Gaia-RVS (Radial Velocity Spectrometer) analysis. Moreover, the resulting abundances reproduce a plateau in the metal-poor regime followed by a decreasing trend even at supersolar metallicities, as predicted by Galactic chemical evolution models.
Conclusions. This catalogue is suitable for improving the modelling of evolutionary stellar population models with empirical α enhancements, which could significantly contribute to the analysis of external galaxies’ abundances in the near future.
Zuhause-Pflegen und trotzdem gesund bleiben? Risiko- und
Schutzfaktoren für dysfunktionales Coping bei pflegenden
Angehörigen
Authors: Donath Carolin , Pendergrass Anna , Gräßel Elmar 
Published: March 2023

Zusammenfassung
Ziel der Studie In Deutschland werden 3,3 Mio. Pflegebedürftige zu
Hause versorgt. Mehr als die Hälfte (54%) der pflegenden
Angehörigen schätzt die eigene Belastung dadurch als hoch oder
sehr hoch ein [1]. Für die Stressbewältigung werden
Copingstrategien, u. a. auch dysfunktionale, genutzt. Diese bergen die
Gefahr negativer gesundheitlicher Folgen. Ziel der Studie ist die Erfassung der
Häufigkeit dysfunktionaler Copingstrategien bei pflegenden
Angehörigen (pA) und die Identifikation von Schutz- und Risikofaktoren
für diese ungünstigen Bewältigungsmechanismen.
Methodik Eine Querschnittstudie mit N=961 befragten pA in Bayern
wurde 2020 durchgeführt. Neben dysfunktionalen Copingstrategien wie
Substanzgebrauch und Aufgeben/Vermeidung wurden bei pA die subjektive
Belastung, positive Aspekte der Pflege, Pflegemotive, Charakteristika der
Pflegesituation sowie die kognitive Bewertung der Pflegesituation und die
Einschätzung vorhandener Ressourcen (angelehnt an das Transaktionale
Stressmodell) erfasst. Neben deskriptiver Statistik zur Erfassung der
Häufigkeit dysfunktionalen Bewältigungsverhaltens wurde nach
statistischer Voraussetzungsprüfung mittels linearer Regression
untersucht, welche Prädiktoren sich für dysfunktionales Coping
identifizieren lassen.
Ergebnisse 14,7% der Befragten geben an, zumindest teilweise in
schwierigen Situation Alkohol oder andere Substanzen zu konsumieren,
47,4% der Befragten haben es in schwierigen Situationen aufgegeben, sich
mit der Thematik zu beschäftigen. Als Risikofaktoren für
dysfunktionales Coping wurden die subjektive Belastung (p<0,001), das
Motiv „aus Verpflichtung zu pflegen“ (p=0,035) und die
als unzureichend eingeschätzten eigenen Ressourcen zur Handhabbarkeit
der Pflegesituation (p=0,029) in einem signifikanten Gesamtmodell mit
mittlerer Anpassungsgüte (F (10)=16,776; p<0,001)
identifiziert.
Diskussion und Schlussfolgerung Dysfunktionales Coping in Bezug auf die
Thematik der Pflegesituation ist nicht selten. Der vielversprechendste
Ansatzpunkt für Interventionen ist die subjektive Belastung. Diese kann
nachweislich durch die Inanspruchnahme formeller und informeller Hilfe gesenkt
werden [2, 3]. Dazu muss aber das Problem der bisher niedrigen Nutzungsrate von
Beratungs- und anderen Unterstützungsangeboten [4] überwunden
werden. Neuere digitale Ansätze dazu sind in der Entwicklung [5, 6].
Controlled Prospective Study on the Use of Systematic Simulator-Based Training with a Virtual, Moving Fetus for Learning Second-Trimester Scan: FESIM III
Authors: Freundt Paula , Nourkami-Tutdibi Nasenien , Tutdibi Erol , Janzing Paul , von Ostrowski Thomas , Langer Martin , Zemlin Michael , Steinhard Johannes 
Published: March 2023

Abstract
Objectives To analyze the feasibility of structured ultrasound simulation training (SIM-UT) in teaching second-trimester ultrasound screening using a high-end simulator with a randomly moving fetus.
Methods This was a prospective, controlled trial. A trial group of 11 medical students with minimal obstetric ultrasound experience underwent 12 hours of structured SIM-UT in individual hands-on sessions within 6 weeks. Learning progress was assessed with standardized tests. Performance after 2, 4, and 6 weeks of SIM-UT was compared with two reference groups ((A) Ob/Gyn residents and consultants, and (B) highly skilled DEGUM experts). Participants were asked to acquire 23 2nd trimester planes according to ISUOG guidelines in a realistic simulation B-mode with a randomly moving fetus as quickly as possible within a 30-minute time frame. All tests were analyzed regarding the rate of appropriately obtained images and the total time to completion (TTC).
Results During the study, novices were able to improve their ultrasound skills significantly, reaching the physician level of the reference group (A) after 8 hours of training. After 12 hours of SIM-UT, the trial group performed significantly faster than the physician group (TTC: 621±189 vs. 1036±389 sec., p=0.011). Novices obtained 20 out of 23 2nd trimester standard planes without a significant time difference when compared to experts. TTC of the DEGUM reference group remained significantly faster (p<0.001) though.
Conclusion SIM-UT on a simulator with a virtual, randomly moving fetus is highly effective. Novices can obtain standard plane acquisition skills close to expert level within 12 hours of self-training.
Optimizing Wound Care after Surgery of the Head and Neck: A Review of Dressing Materials
Authors: Lohuis Peter J.F.M. , Maldonado-Chapa Felix , Santos-Santillana Karla M. , Filipović Boris , Dirven Richard , Karakullukcku M. Baris , Karssemakers Luc , Schreuder Willem H. , Zuur Charlotte L. , Timmermans Jacqueline 
Published: March 2023

AbstractWound healing is a complex biological process subject to complications that might jeopardize the patient's postoperative care. Appropriately approaching surgical wounds after head and neck surgery positively influences the quality and speed of wound healing and increases patient comfort. A large variety of dressing materials currently exist that allow the care of different types of wounds. Nevertheless, there is limited literature on the most suitable types of dressings after head and neck surgery. The objective of the present article is to review the most commonly used wound dressings, their benefits, indications, and disadvantages, and to provide a systematic approach for wound care within the head and neck. The Woundcare Consultant Society distinguishes wounds into three groups: black, yellow, and red. Each type of wound represents distinctive underlying pathophysiological processes with unique needs. Utilizing this classification along with the TIME model allows a proper characterization of wounds and the identification of potential healing barriers. This evidence-based and systematic approach can facilitate and guide the head and neck surgeon in selecting a wound dressing upon acknowledging their properties, which are herein reviewed and exemplified with representative cases.