bluuebunny/crossref_metadata_2025_split huggingface dataset:
Development of novel non-woven Triumfetta cordifolia bast fibers and polylactide fibers biocomposites
Authors: Mewoli Armel , Segovia César , Ebanda Fabien Betene , Ateba Atangana , Girods Pierre , Nicolas Brosse 
Published: June 2023

Abstract
This study focuses on the development of needle-punched nonwoven composites reinforced with a Triumfetta cordifolia (TC) bast fiber based on a polylactide (PLA) matrix. Flax and hemp fibers, already known for their use in automotive applications, are used as a reference for comparison purposes. TC bast fibers from the equatorial region of Cameroon were extracted by a water retting process. Nonwoven felts were obtained by mixing TC fibers with PLA (50:50 weight ratio) through carding-napping process. The composite materials were obtained by thermocompression of the nonwoven felts with two thickness ranges (2 mm and 3 mm). The results obtained in tensile and flexural tests showed that composite materials with an optimal thickness of 2 mm displayed better mechanical performances. The anisotropy of the mechanical properties in traction and flexion of these composites was highlighted. It was found that the tensile and flexural mechanical properties in the transverse direction (CD) are always superior to those in the machine direction (MD). Compared to flax or hemp nonwoven-reinforced biocomposites, TC fibers-based nonwoven biocomposites showed slightly lower maximum tensile and flexural stiffness values of 2882.7 MPa and 3908.6 MPa respectively. Thermogravimetric analysis revealed that the addition of the plant fibers increased the thermal stability of PLA and the ash content to 8%.
Improving quantitative structure models with an Huxley protocol based filter
Authors: Hackenberg Jan , Bontemps Jean-Daniel 
Published: June 2023

Abstract
Quantitative structure models (\texttt{QSMs}) are topological orderedcylinder models of trees whichdescribe the branching structure up to the tips. \\Methods:We present unpublished tree describing parameters which can bederived from a single Quantitative Structure Model (\texttt{QSM}). The parameters areused to build two \texttt{Radius} correctionfilters.\\Results:For validation we use QSMs produced from an open point clouddata set of tree clouds with the SimpleForest software. We comparethe QSM volume against the harvested reference data for 65 felledtrees. We also found QSM data of TreeQSM, a competitive andbroadly accepted QSM modeling tool. Our RMSE was less than 40% of the TreeQSM RMSE.\\For other error measures, the\texttt{r\textsuperscript{2}\textsubscript{adj.}}and the \texttt{CCC}, the relative improvement looked even better withreaching only 27 % and 21 % of the TreeQSM errors respectively.\\Conclusions:In forest ecology we should use the here presented pipelineto build accurate \texttt{QSMs} for reasons of: \\\texttt{Quality - }With the invention of the \texttt{QSM} \texttt{Radius} filter techniquesweimprove tree volume prediction capabilities utilizing \texttt{QSMs}.\\\texttt{Quantity - }More data can be collected with \texttt{QSMs} than with traditionalmethods. Here we use modelsbuild on more than ten thousand measurements.\\
Adaptive evaluation of mHealth and conventional adherence support interventions to optimize outcomes with new treatment regimens for drug-resistant tuberculosis and HIV in South Africa (ADAP-TIV): Study protocol for an adaptive randomized controlled trial
Authors: Ross Jesse E , Perumal Rubeshan , Wolf Allison , Zulu Mbali , Guzman Kevin , Seepamore Boitumelo , Reis Karl , Nyilana Hlengiwe , Hlathi Senzo , Narasimmulu Radhamoney , Cheung Ying Keun K , Amico K Rivet , Friedland Gerald , Daftary Amrita , Zelnick Jennifer , Naidoo Kogieleum , O'Donnell Max R 
Published: June 2023

Abstract
Background Highly effective, short course, bedaquiline-containing treatment regimens for multidrug-resistant tuberculosis (MDR-TB) and integrase strand transfer inhibitor (INSTI)-containing fixed dose combination antiretroviral therapy (ART) have radically transformed treatment for MDR-TB and HIV. However, without advances in adherence support, we may not realize the full potential of these therapeutics. The primary objective of this study is to compare the effect of adherence support interventions on clinical and biological endpoints using an adaptive randomized platform.
Methods This is a prospective, adaptive, randomized controlled trial comparing the effectiveness of four adherence support strategies on a composite clinical outcome in adults with MDR-TB and HIV initiating bedaquiline-containing MDR-TB treatment regimens and receiving ART in KwaZulu-Natal, South Africa. Trial arms include 1) enhanced standard of care; 2) psychosocial support; 3) mHealth using cellular-enabled electronic dose monitoring; 4) combined mHealth and psychosocial support. The level of support will be titrated using a differentiated service delivery (DSD)-informed assessment of treatment support needs. The composite primary outcome will be include survival, negative TB culture, retention in care and undetectable HIV viral load at month 12. Secondary outcomes will include individual components of the primary outcome and quantitative evaluation of adherence on TB and HIV treatment outcomes.
Discussion This trial will evaluate the contribution of different modes of adherence support on MDR-TB and HIV outcomes with WHO recommended all-oral MDR-TB regimens and ART in a high-burden operational setting. We will also assess the utility of a DSD framework to pragmatically adjust levels of MDR-TB and HIV treatment support.
Trial Registration ClinicalTrials.gov: NCT05633056 | December 1, 2022
Funded by The National Institutes of Health (NIH). Grant # R01 AI167798-01A1 (MO)
Effects of sleep-disordered breathing on serum lipid levels in children:a case control study
Authors: Lei Lei , Zhang XiaoYun , Wang Binbin , Lei Fei , Dai Li , Sun Xiaoru , Zhao Yu , Zhu Ping , Zou Jian 
Published: June 2023

Abstract
Background: Sleep-disordered breathing (SDB) during childhood is common and includes a range of breathing abnormalities that range from primary snoring (PS) to obstructive sleep apnea syndrome (OSAS).Studies have shown that not only OSAS, but also PS, which is originally considered harmless, could cause cardiovascular, cognitive, behavioral, and psychosocial problems. Many researches are focused on the relation of OSA and serum lipid levels. However, little studies are focused on PS and serum lipid levels in children.We evaluated whether serum lipid (total cholesterol (TC), triglyceride (TG), high-density lipoprotein cholesterol (HDL-C),low-density lipoprotein cholesterol (LDL-C)) concentrations were associated with specific components of SDB, including indices of oxygen reduction index, lowest oxygen saturation, mean oxygen saturation. And we explored whether serum lipid levels were associated with different degree sleep disordered (PS and OSA group) and obese.
Methods: This was a cross-sectional study. Children who were complained by their guardians with habitual snoring and(or) mouth breathing were collected in the SDB group. Normal children without sleep problem were matched in the control group. Subjects in the SDB group underwent polysomnography. The serum lipid profiles of all the children included TC, TG, HDL-C and LDL-C concentrations were measured by appropriate enzymatic assays.
Results: A total of 241 with Apnea/Hypopnea Index≥5 (AHI) were assigned to the OSAS group and the remaining 155 with normal AHI were assigned to the PS group. The values of TC, TG, LDL-C and LDL/HDL were significantly higher in the OSAS group than in the PS group, and the values in the PS group were significantly higher than the control group. Multiple regression analysis revealed serum TG only correlated negatively with lowest oxygen saturation. Body mass index-z score has a positive effect on TG in all the 1310 children (P=0.031) and in SDB 396 children(P=0.012). The level of serum TG in obese group was significantly higher than that in non-obese group.
Conclusions: SDB had a very obvious effect on blood lipids, whereas PS without apnea and hypoxia. Obese only affects the aggregation of TG.
Impairments in sleep and brain molecular clearance in people with cognitive deterioration and biological evidence of AD: A report of four cases
Authors: Buongiorno Mariateresa , Granell Esther , Caruana Giovanni , Sansa Gemma , Vives-Gilabert Yolanda , Cullell Natalia , Molina-Seguin Jessica , Almeria Marta , Artero Cristina , Sánchez-Benavides Gonzalo , Ray Nicola J , Correa Sonia A.L. , Krupinski Jerzy 
Published: June 2023

Abstract
Background: Recent evidence suggests that the failure of the glymphatic system – the brain’s waste clearance system, which is active during sleep – plays a key role in the pathophysiology of Alzheimer’s Disease (AD). Glymphatic function can be investigated using serial MRIs after intrathecal gadobutrol injection. This technique can reveal the health of the glymphatic system, but has not yet been used in participants with cognitive impairment due to AD.Case report: This report describes the sleep and gadobutrol tracer clearance patterns of four participants diagnosed with mild to moderate cognitive impairment with evidence of AD pathology (pathological levels of Ab and p-tau in cerebrospinal fluid). We performed polysomnography and MRI studies before tracer injection and MRI scans at 1.5-2 h, 5–6 h, and 48 h after injection. Despite participants reporting no sleep problems, polysomnography revealed that all participants had moderate to severe sleep disturbances, including reduced sleep efficiency and obstructive sleep apnea. Severe side-effects related to tracer administration were observed, impeding the completion of the protocol in two participants. Participants who finished the protocol displayed delayed and persistent tracer enrichment in the cortex and white matter, even 48 h after injection. These outcomes have not been observed in previous studies in participants without AD.Conclusion: The findings imply that brains with sleep impairment and AD pathology have poor glymphatic function, and therefore cannot clear the contrast tracer efficiently, This is likely to have caused the severe side effects in our participants, that have not been reported in healthy individuals.
Research on blasting mechanism and blasting effect of aqueous media in open pit coal mines
Authors: Ding Xiaohua , Qin Hao , Ao Zhongchen , Li Xiaoshuang , Huang Kexin , Xiao Shuangshuang , Wu Mao , Zhang Donghua 
Published: June 2023

Abstract
The existing mining procedure for coal surface mining is perforation-blasting-mining-loading-transportation-disposal, in which the blasting link has problems such as low loading efficiency due to poor blasting effects and environmental pollution caused by the dust generated by blasting. This paper presents a detailed analysis of the mechanical characteristics of the aqueous media, its role in transferring energy during blasting, the role of the aqueous media in energy transfer, and the bubble pulsation phenomenon. The dynamic process of blasting was simulated with the help of TrueGrid/LS-DYNA finite element analysis software to study the changes in the maximum principal stresses at the perimeter of the hole, the top and the foot of the slope. Finally, blasting field tests were carried out in conjunction with actual mine production conditions. The dust reduction rate of aqueous media blasting reached 75%, and a comprehensive evaluation of two groups of traditional dry hole blasting and three groups of aqueous media blasting was carried out using the AHP-fuzzy comprehensive evaluation method.
Systemic lupus erythematosus combined with Castleman disease and secondary paraneoplastic pemphigus: A case report
Authors: Ma xin , Li jiyuan , Fan linlin , Jiang hongwei , Shi gaishao , Ge dongfeng , Shi Xiaofei 
Published: June 2023

Abstract
Background: The literature describes a case of systemic lupus erythematosus (SLE) complicated with Castleman's disease (CD) and secondary paraneoplastic pemphigus (PNP).
Case presentation: A 12-year-old female presented with a neck mass, rash, arthralgia, and skin and mouth ulceration for 5 years were admitted. All blood cells were low. Multiple autoantibodies associated with SLE were positive. The pathology of the neck mass revealed the classical manifestations of CD. She was treated with prednisone, hydroxychloroquine, leflunomide, thalidomide, and dressings. Pathological examination of the skin revealed PNP. The neck mass was removed and continued to take antirheumatic drugs. At subsequent follow-up, the patient's disease status was stable and the skin mucosal lesion did not recur.
Conclusion: The case of simultaneous SLE, CD, and PNP in children was rarely reported, and the correct diagnosis of the disease will help to take timely treatment.
Space Weather Impacts on the Ionosphere over the African Mid-latitude Region
Authors: Matamba Tshimangadzo Merline , Danskin Donald William , Nndanganeni Rendani Rejoyce , Tshisaphungo Mpho 
Published: June 2023

Abstract
The ionosphere suffers major perturbations during severe space weather events such as Coronal Mass Ejection (CME), solar flares, high-speed streams, and Corotating Interaction Regions (CIR). During severe space weather conditions, the ionosphere can experience depletions or enhancements in Total Electron Content (TEC). The South African National Space Agency (SANSA) near-real-time (NRT) TEC maps were used to show the ionospheric variability during the geomagnetic storm of 3 – 8 Nov 2021 over the Southern Africa mid-latitude region. The ionosonde TEC, NRT TEC, and the quiet-time AfriTEC model were compared during the six-day period. A negative ionospheric response was observed during the main and recovery phase of the geomagnetic storm (4 – 5 Nov 2021). The changes to neutral composition O/N2 was one of the physical processes attributed to the decrease in TEC over the mid-latitude region. The GPS TEC maps showed a very good agreement with ionosonde measurements and the AfriTEC model. A strong east-west TEC gradient was observed occurring between two ionosonde stations.
Citizen data for global mapping of atmospheric urban heat islands
Authors: Lizana Jesus , Núñez-Peiró Miguel , Khosla Radhika , McCulloch Malcolm 
Published: June 2023

Abstract
Urban heat islands are compounding the dangerous impacts of urban heat exposure globally. Cities across geographies require immediate and advanced urban climate information with enough resolution to detect risks and prioritise local climate adaptation interventions for their people. This research analyses the applicability of 550,000 citizen weather stations globally, a network 12 times larger than professionally operated weather stations, to measure urban climate at the highest spatio-temporal resolution and support climate adaptation policies globally. Cities with higher citizen data availability worldwide are identified, and a first open-source procedure in Python is proposed that cities around the world can use. The approach is validated in London, integrating temperature data from Netatmo and Wunderground platforms. The validation tests showed how pre-processing techniques improve citizen data accuracy, decreasing mean temperature deviation from 0.98ºC to 0.48ºC, inside the precision range of sensors. Data analytic methods identified significant implications of urban overheating in the case of London, increasing annual cooling degree hours by 60% in some urban areas, with different night and daytime hot spots. Aerodynamics and imperviousness affected urban overheating at night and daytime differently, requiring different localised interventions. Such large-scale application and scalability of open-access and readily available citizen data networks can efficiently support and monitor localised climate adaptation to mitigate the impacts of rising heat.
Comparison of anesthetic effects of different doses of alfentanil combined with ciprofol in elderly patients undergoing ERCP :a randomized controlled trial
Authors: Hu Jun , Gu Xiuxia , Zhu Wenhao , Zhu Xiuli , Ji Fanceng , Luo Yanhua , Liu Ning 
Published: June 2023

Abstract
Background and Objects: Patients undergoing endoscopic retrograde cholangiopancreatography (ERCP) are often old and poor in physical fitness. The purpose of this study was to investigate the anesthetic effect of different doses of alfentanil combined with ciprofol in elderly patients undergoing endoscopic retrograde cholangiopancreatography (ERCP). Methods: In this clinical trial, 137 patients, who were candidates for ERCP were randomly divided into three groups. Group A were given 0.15 µg/kg/min of alfentanil in maintenance stage, Group B were given 0.25 µg/kg/min and Group C were given 0.35 µg/kg/min. Mean arterial pressure (MAP), heart rate (HR), oxygen saturation (SpO2) of the patients at each time point including the entry into the operation room (T0), at the beginning of surgery(T1), 10 minutes after surgery(T2), 20 minutes after surgery(T3), 30 minutes after surgery(T4),endoscopy withdrawal (T5) were recorded. Adverse events(including respiratory depression, body movement and hypoxemia),the dosage of ciprofen, the time of operation time and awakening were recorded. Results: Compared with Group A, MAP and HR in Group B and Group C was decreased during T1-T5 (P < 0.05). Compared with group B, MAP and HR in group C was decreased during T1-T5 (P < 0.05). Compared with Group A and Group C ,the number of adverse reactions of Group B was decreased(P < 0.05). There was no statistical difference in surgical time among the three groups(P>0.05) ,but t a statistically significant difference in recovery time (P < 0.05). Conclusion: The adverse events of alfentanil 0.25µg/kg/min combined with ciprofol were low, and the anesthetic effect was the best.
Exploration of Coal-Water Dual Resource Synergistic Mining System under the Derived Hydrodynamic Water Inrush Mode
Authors: Meng shihao , Zeng Yifan , Wu Qiang , wang lu , yang lei , bao han , zhang ye , yang guoqing , du xin , pang kai , yang weihong , zhang yao , yu chao 
Published: June 2023

Abstract
As human activities such as mining and underground space utilization continue to intensify, the damage to overlying strata and the disturbance to groundwater systems are expanding accordingly. The process of water inrush caused by large-scale coal mining is more complex, requiring heightened standards for water hazard prevention and water resources protection. This paper presents a preliminary summary of the Derived Hydrodynamic Water Inrush Mode (DHWIM), which is relatively hidden and poses significant challenges to mine production safety and ecological environment protection. By elaborating on the concept and mechanism of the mode, an evaluation method and prevention measures are developed to explore a green mining technology system for coal-water dual resources. Unlike traditional research that primarily focuses on the mechanical mechanism of rock mass failure, DHWIM must take into account geological structure and hydrological characteristics. Additionally, pre-mining static evaluations are inadequate for accurately assessing the water hazard risk associated with DHWIM. Instead, an overall perspective that analyzes the dynamic changes of water inrush throughout the entire mining process is necessary. This study offers a crucial theoretical foundation for controlling water hazards in underground engineering, protecting ecological water resources, and promoting green mining.
Quantification of muscle tone by using shear wave velocity during an anaesthetic induction: a prospective observational study
Authors: Saito Hidehisa , Sugino Shigekazu , Moteki Shoichiro , Kanaya Akihiro , Yamauchi Masanori 
Published: June 2023

Abstract
Objectives
Shear wave elastography is non-invasive ultrasound method and provides quantitative information on the elasticity of soft tissue. However, the universal velocity scale for quantification has not been developed. The aim of the study is to determine the shear wave velocities of abdominal muscle during anesthetic induction for future development on the universal scale.
Methods
We enrolled 75 adult patients undergoing elective surgery with ASA-PS I – III in the period between December 2018 and March 2021. We measured and calculated the shear wave velocity (SWV) before and after opioid administration (i.e., the baseline at rest and opioid-induced rigidity condition), and after muscle relaxant administration (i.e., zero reference condition). The SWV value was adjusted for the subcutaneous fat thickness by our proposed corrections. The SWVs after the adjustment were compared among the values in baseline, rigidity, and relaxation using one-way repeated-measures ANOVA and post hoc Tukey-Kramer test. A p-value of < 0.05 was considered to be statistically significant. UMIN Clinical Trials Registry identifier UMIN000034692, registered on October 30th, 2018.
Results
The SWVs in the baseline, opioid-induced rigidity, and muscle relaxation conditions after the adjustment were 2.08 ± 0.48, 2.41 ± 0.60, and 1.79 ± 0.30 m/s, respectively (p < 0.001 at all comparisons).
Conclusion
The present study suggested that the SWV as reference was 1.79 m/s and that the SWVs at rest and opioid-induced rigidity were ~ 10% and ~ 30% increase from the reference, respectively. The SWV adjusted for the subcutaneous fat thickness may be scale points for the assessment of muscle tone.
The sociodemographic factors associated with suicidal ideation and attempts, and care use and unmet need among suicide-ideators in a Belgian population study
Authors: Rens Eva , Portzky Gwendolyn , Morrens Manuel , Dom Geert , Broeck Kris Van den , Gijzen Mandy 
Published: June 2023

Abstract
Background
Suicidal ideation, or thinking about death and suicide, is common across all layers of society. The aim of this paper is to add to the understanding of suicidal ideation in the general population, as well as help-seeking behaviors and perceived unmet mental health needs among those who report suicidal thoughts.
Methods
The research is part of a representative population-based survey study of mental wellbeing in Antwerp (Flanders, Belgium) carried out in 2021. A total of 1202 participants between 15 and 80 years old answered the Ask Suicide-Screening Questions (ASQ), and an additional question about suicide plans. Participation was by invitation only and possible online or via a postal paper questionnaire. Univariate logistic regression analyses examined the association between both current suicidal ideation and self-reported lifetime suicide attempt, and the sociodemographic factors age, gender, educational level, origin and financial distress. Moreover, formal care use for mental health was examined among those experiencing suicidal ideation, and logistic regression analyses were used to assess sociodemographic risk factors. Finally, perceived unmet mental health needs were assessed among suicide ideators.
Results
The point-prevalence of suicidal ideation was 8.6% and was higher among younger age groups and individuals reporting financial distress. The lifetime-prevalence of suicide attempts is 6.5% and was lower in the oldest age group and individuals with a secondary or higher education and without financial distress. About half (45.6%) of those with suicidal ideation consulted a professional for mental health problems in the past twelve months. Men and individuals with a primary educational level were less likely to seek help. Half of suicide ideators without care use perceived some need for mental health care, and a third of suicide ideators who used care perceived the obtained help as insufficient, resulting in a population prevalence of 3.6% suicide ideators with a fully or partially perceived unmet need.
Conclusions
The prevalence of suicide attempts, suicidal ideation and unmet needs among suicide-ideators is high in this Belgian sample. Mental health care need perception in suicide ideators needs further investigation.