bluuebunny/crossref_metadata_2025_split huggingface dataset:
Hydroxypropylation Reduces Gelatinization Temperature of Corn Starch for Textile Sizing
Authors: Shen Yanqin , YAO Yijun , Wang Zhongliang , Wu Hailiang 
Published: February 2021

Abstract
A series of hydroxypropylated starch (HPS) that can be dissolved in water at 60-65℃ was obtained via two-step method in water system from corn starch. The structure and property of the HPS and its gelatinization temperature were characterized by Fourier transform infrared spectrometer (FTIR), nuclear magnetic resonance spectroscopy ( 1 H NMR), X-ray diffraction (XRD), differential scanning calorimetry (DSC), scanning electron microscopy (SEM), and transmission electron microscope (TEM). It was concluded that hydroxypropyl mainly bonded on the hydroxyl group at C 2 position from anhydroglucose unit of starch in the form of C-O-C, and the substitution level at C 6 position was slightly higher than that at C 3 position; and the crystallinity of starch decreased from 52.41% to 29.4% due to the introduction of hydroxypropyl and was confirmed by XRD. At the same time, the grooves on the surface of starch granules were observed by SEM. The above-mentioned two synergism promoted the permeation and transmission of water molecules in the starch microstructure. Moreover, the gelatinization temperatures and enthalpy of synthetic HPS was lower than that of raw corn starch, as further confirmed by DSC. This caused the HPS with a molar substitution greater than 0.1 soluble in water at 65℃, and the dissolution state was similar to that of at 95℃ (transmittance above 55%), as well as exhibited high slurry stability. Interestingly, compared with the raw starch, the HPS film showed excellent mechanical property at the relative humidity of 65%, which could be attributed to the hydrophilic ether bond and the flexible alkyl chain bonded on the structure of starch. This study will provide a new way for the preparation of high performance starch size for sizing yarn at medium low temperature.
Effect of Triple Antibiotic Paste on The Bond Strength of Epoxy and Methacrylate Resin–Based Sealers to Root Canal Dentine
Authors: Sobhnamayan Fereshte , Adl Alireza , Sedigh-Shams Mahdi , Mirkhaghani Hossein 
Published: February 2021

Abstract
Background: Triple antibiotic pastes (TAP) has gained popularity as a root canal medicament in regenerative endodontic procedures and other endodontic treatment modalities. As this medicament changes the chemical structure of dentine, it may affect the bond strength of endodontic sealers to radicular dentine. This study aimed to evaluate the effect of TAP on the bond Strength of epoxy and methacrylate resin- based sealers to root canal dentine.Methods: In this in vitro study, eighty single-rooted human mandibular premolars were prepared using ProTaper rotary system. The specimens were randomly divided into a control group (without intracanal dressing) and an experimental group receiving TAP (n = 40). The intracanal dressing was removed after three weeks. Then samples of each group were randomly divided into four subgroups (n = 10) and obturated with gutta-percha and different resin-based sealers. G1: AH Plus, G2: Syntex, G3: EndoREZ, G4: MetaSEAL. After one week, 16 Slices of 1±0.1 mm thickness were obtained from the midroots of teeth in each subgroup and a push-out test was used to measure the bond strength. Slices were examined using a stereomicroscope at 30× to determine the mode of failure. The data were analyzed using two-way analysis of variance, one- way analysis of variance and Tukey post hoc tests (α = 0.05).Results: Compared to control group, TAP significantly increased the bond strength of MetaSeal and EndoREZ (p<0.05). In the control group, epoxy resin- based sealers showed higher bond strength compared to methacrylate ones (p=0.00). In TAP group, Syntex and EndoREZ showed significantly the greatest and the lowest bond strengths respectively (p<.05). The analysis of failure modes revealed a predominance of mixed failures in all groups except for Syntex group in which most failures were cohesive.Conclusions: TAP significantly increased the bond strength of methacrylate resin- based sealers.
When to Perform Curettage After Uterine Artery Embolization for Cesarean Scar Pregnancy: a Clinical Study
Authors: Wang Qiao , Peng Hongling , Zhao Xia , Qi Xiaorong 
Published: February 2021

Abstract
Background: Prophylactic uterine artery embolization (UAE) combined with following curettage was suggested as an effective and minimally invasive treatment strategy for cesarean scar pregnancy (CSP) with high bleeding risk. However, the timing of curettage after UAE remains to be studied. Thus, we aimed to identify the optimal time interval to perform curettage after UAE in patients with CSP.Methods: We conducted a retrospective cohort study in a large medical center for women and children in southwest China. CSP patients treated by UAE combined with following curettage were included and grouped by the treatment time interval between these two procedures. The clinical outcomes among arms were compared by univariate and multi-variable analysis.Results: Our study finally included a total of 314 CSP patients who received this combination treatment in our department from January 2014 to December 2019. The median time interval between UAE and curettage was 48 hours with a range of 12-168 hours in all participants. Thirty-two cases (10.2%) experienced intra-operative hemorrhage (blood loss ≥200mL). Seventeen cases (5.4%) used intrauterine balloon tamponade. Fourteen cases (4.5%) were converted into laparoscopy (or laparotomy). In the cohort study, patients with longer treatment interval had more intra-operative blood loss and higher incidence of complications than those with shorter interval (P＜0.05). The rate of intra-operative bleeding was 5.0% in patients who received curettage within 24 hours after UAE (Arm 1), in comparison with 19.4% in those who had treatment interval longer than 72 hours (Arm 4). In the multi-variable logistic regression model of bleeding, the treatment interval ＞72 hours had an adjusted odds ratio of 3.37 (95% confidence interval: 1.40-8.09). Conclusion: We suggest that curettage should not be delayed longer than 72 hours after UAE under general conditions.
Intra-Articular Injection of Autologous Adipose-Derived Stromal Vascular Fractions for the Cartilage Repair of Grade 2 and 3 Knee Osteoarthritis: A Confirmatory Clinical Trial
Authors: Zhang Yin , Bi Qing , Yu Taihen , Hong Zheping , Tong Yu , Luo Junchao , Yuan Ye , Zhang Wei , Zhu Senbo , Ji Lichen , Zhao Chen , Zhang Shuijun , Zhang Qiong 
Published: February 2021

Abstract
BackgroundCartilage defect remains one of the most important reasons for the rapid development of knee osteoarthritis (OA). Numerous reports have confirmed the safety and clinical efficacy of autologous adipose-derived stromal vascular fractions (SVF), which has recently been used clinically to treat patients with knee OA. However, there is still no consensus as to whether SVF can promote cartilage regeneration. Herein, we purposed to evaluate the effectiveness of SVF in cartilage regeneration by developing cartilage model based on the 3D-FS-SPGR sequence.MethodsPatients with Kellgren-Lawrence grade 2-3 knee OA were recruited in our research. Then, we monitored patients and subsequently scored symptoms using WOMAC, VAS, and range of motion (ROM) before treatment and at 1, 3, 6, and 12 months post-treatment. The WORMS and MOCART were recorded by magnetic resonance imaging. The cartilage model of the patient was established using the 3D-FS-SPGR sequence, while the relevant parameters of the model were counted at baseline, 6, and 12 months.ResultsWe enrolled 47 patients (53 knees) with knee OA in this study, of which 29 knees were classified as grade 2, while 24 were assigned grade 3. No treatment-related adverse event was observed in our study. Notably, WOMAC, VAS, and ROM showed a significant improvement at 12 months. We further found that the thickness, volume, and surface of the cartilage defect decreased, while the volume of healthy cartilage increased in all regions, particularly in the medial femoral and tibia condyle. Moreover, the scores of WORMS and MOCART revealed a substantial improvement of cartilage repair at 12 months. ConclusionsTaken together, this study shows that intra-articular injection of SVF into the knee markedly improved the clinical symptoms of patients without the occurrence of adverse events, thereby repairing the damaged articular cartilage through cartilage regeneration.Trial registration﻿Retrospectively registered. Chinses Clinical Trial Registry with identifier ChiCTR2100042930. Registered 28 January 2021.
The Enhancement of Energy Storage Performances via Combining Relaxor Behaviors With the Crucial Point of Solubility Limit
Authors: Shi Zhifeng , Liu Yaping , Guo Fei , Zhao Shifeng 
Published: February 2021

Abstract
(1-x)(0.96Na0.5Bi0.5TiO3-0.04BiMnO3)-xLaMnO3 ternary solid solution films were fabricated by Sol-gel methods. It takes advantage of the large polarization from 0.96NBT-0.04BMO limit solid solution at crucial point of solubility limit to enhance energy density. And LaMnO3 was introduced to improve the energy storage efficiency via the enhancement of relaxor behaviors. It is shown that the relaxor behaviors had been enhanced, and a large energy storage density of 87.9 J/cm3 and efficiency of 56.5 % were achieved for 0.85(NBT-BMO)-0.15LM films, with increase ratio of 4.9 % and 13.3 % respectively than 0.96NBT-0.04BMO solubility limit films. However, when LaMnO3 is beyond a certain limit, the breakdown strength is reduced due the formation of the current channel. Thus it suggests a alternative method that combining relaxor behaviors with solubility limit films, which provides a way to regulate the energy storage performances for film capacitors.
A Psychoacoustic Test for Misophonia Assessment
Authors: Enzler Falco , Loriot Céline , Fournier Philippe , Noreña Arnaud J. 
Published: February 2021

Abstract
Misophonia is a condition where a strong arousal response is triggered when hearing specific human generated sounds, like chewing, and/or repetitive tapping noises, like pen clicking. It is diagnosed with clinical interviews and questionnaires since no psychoacoustic tools exist to assess its presence. The present study was aimed at developing and testing a new assessment tool for misophonia. The method was inspired by an approach we have recently developed for hyperacusis. It consisted of presenting subjects (n=253) with misophonic, pleasant, and unpleasant sounds in an online experiment. The task was to rate them on a pleasant to unpleasant visual analog scale. Subjects were labeled as misophonics (n=78) or controls (n=55) by using self-report questions and a misophonia questionnaire, the MisoQuest. There was a significant difference between controls and misophonics in the median global rating of misophonic sounds. On the other hand, median global rating of unpleasant, and pleasant sounds did not differ significantly. We selected a subset of the misophonic sounds to form the core discriminant sounds of misophonia (CDSMiso). A metric: the CDS score, was used to quantitatively measure misophonia, both with a global score and with subscores. The latter could specifically quantify aversion towards different sound sources/events, i.e., mouth, breathing/nose, throat, and repetitive sounds. A receiver operating characteristic analysis showed that the method accurately classified subjects with and without misophonia (accuracy = 91 %). The present study suggests that the psychoacoustic test we have developed can be used to assess misophonia reliably and quickly.
Determination of Poultry Manure and Plant Residues Effects on Zn Bioavailable Fraction in Contaminated Soil Via DGT Technique
Authors: Mohseni Amir , Heidari Saber , Bidast Solmaz , Raei Bijan , Moftakharzadeh Seyed Adel 
Published: February 2021

Abstract
A greenhouse experiment was aimed at assessing the effects of poultry manure, sorghum, and clover residues (0 and 15 g kg-1) on the zinc (Zn) bioavailable fraction in contaminated calcareous soil using two chemical assay, diffusion gradient in thin films (DGT) and DTPA-TEA, and a bioassay with corn (Zea mase L.). The results showed that poultry manure, clover, and sorghum residues application increased dissolved organic carbon (DOC) by 53.6 and 36.1, and 9.2%, respectively, with respect to unamended soils, as well as decreasing soil pH by 0.42, 0.26, and 0.06 units, respectively. These changes did result in increases of Zn effective concentration (CE) and DTPA-Zn, and plant Zn concentration as a result of the increased exchangeable form of Zn. In the sorghum residues-amended soils, a reverse trend was observed for CE-Zn compared to the DTPA method. Correlation analyses revealed that unlike CE-Zn, DTPA-Zn had a positive correlation significantly with organic fractions that can be considered as an equivalent to the fact that the DTPA method had been overestimated Zn available to plants. The best correlations between corn metal concentrations and soil metal bioavailability were for CE-Zn using DGT technique, which also provided the best Zn bioavailability estimate. It is concluded that sorghum residues could be used to reduce the phytotoxicity risk of Zn in calcareous contaminated soil, and DTPA method is the less robust indicator of Zn bioavailability than DGT technique.
Parameters of Complete Blood Count Might Predict the Prognosis of Patients with Advanced Gastric Cancer
Authors: Sutcuoglu Osman , Fincan Abdülkadir , Gürler Fatih , İnci Bediz Kurt , Özdemir Nuriye , Yazıcı Ozan 
Published: February 2021

Abstract
PurposeMetastatic gastric cancer is a common disease with poor prognosis. In this common disease, estimating the prognosis with a simple complete blood count has attracted the attention in many studies. However, the results of the studies are incompatible with each other. The aim of the study was to evaluate the relationship between parameters of the complete blood count and disease prognosis in patients with advanced gastric cancer(AGC).MethodsBetween 2009 and May 2019, the files of patients with AGC were retrospectively evaluated. Blood counts of the patients were examined before receiving any treatment at the time of diagnosis of AGC. All parameters derived from complete blood count and defined in literature were evaluated in this study. These were; Neutrophil lymphocyte ratio(NLR), platelet lymphocyte ratio(PLR), monocyte lymphocyte ratio(MLR), systemic immune-inflammation index(SII), hemoglobin, lymphocyte, platelet. The patients were divided in two subgroups according to the median values of NLR, PLR, MLR and SII.ResultsA total of 105 patients with AGC were included in the study. The median survival in the patients with low NLR group was 14.6 months compared with high NLR group was 7.9 months (p=0.008). In low PLR and MLR group the median survivals were 12.7 and 14.6 months compared with high PLR and MLR were 8.2 and 7.9 months respectively (p=0.019, p=0.06). There was no significant relationship with SII (p=0.375). Multivariate analysis showed that NLR was an independent predictor of overall survival.ConclusionThrough the parameters derived from complete blood count, NLR appears to be a promising prognostic marker in patients with AGC.
EL-IGrowCut: MRI Brain Tissue Segmentation Based on Ensemble Learning and Improve GrowCut Techniques
Authors: Jafari Fatemeh , Ghaffari Hamidreza 
Published: February 2021

Abstract
Background and ObjectiveMagnetic resonance (MR) technology enables physicians to employ digital imaging as a tool to identify and analyze brain tumors as well as to differentiate between healthy and tumor tissues. Since precisely defining the tumor position is a challenging task, segmentation is necessary stage in medical image processing. Segmentation is defined as the division of a given image into non-overlapping regions with relatively similar features. Recently, various techniques have been proposed for MR image segmentation. MethodsIn this paper, a new ensemble clustering technique based on neural network algorithm (NNA) was introduced for segmentation of MRI Brain tissues, which consists of two main phases: training phase and testing phase. In the former, pixels with the same amount of light intensity were put into one group via simple linear iterative clustering (SLIC) algorithm, creating superpixels. Then, the combination of GrowCut methods and Zernik’s feature extraction method and clustering and classification ensemble learning, including multi-layer perceptron neural network algorithm (MLP), Support vector machine (SVM) and K nearest neighbor (KNN), are based on geometric features in order to detect the division of MRI Brain tissues. The improved GrowCut method, based on the geometric properties of the images, has been used to segmentation the image of the brain from MRI images. Then, with the help of Zernik’s technique, image features were extracted based on the features of the edges and the texture of the images. Finally, the ensemble learning methods such as KNN, SVM, and MLP combine together for attempted to detect MRI Brain tissues. Results and ConclusionsThe performance of the proposed method was evaluated on the IBSR20 dataset and the obtained results were compared separately with the six basic clustering methods (that together are creating the ensemble clustering technique). The results demonstrated that the proposed technique outperforms other clustering algorithms in terms of segmentation accuracy in most of the experimental cases. Therefore, by presenting experiments to diagnose MRI Brain tissues, it was observed that the proposed method detected the MR with acceptable accuracy and the combination of ensemble learning methods and GrowCut and Zernik’s feature extraction methods was successful.
Structural Role of Nd2O3 as Dopant Material in Modified Borate Glasses and Glass Ceramics
Authors: Shaalan M. A. , El-Damrawi Gomaa , Hassan A.K. , Misbah M. Hamed 
Published: February 2021

Abstract
Glasses in the system xNd2O3-(46-x)B2O3-27CaO-24.4Na2O-2.6 P2O5 (0 ≤ x ≤ 4 mol%) have been prepared via conventional melt quenching technique. X-ray diffraction (XRD) spectra have showed that the amorphous structure is dominant in glasses of Nd2O3 concentrations ≤ 0.5 mol%. But formation of a more ordered structure is confirmed at higher Nd2O3 values. Result based on differential scanning calorimetry (DSC) shows an increase in glass transition temperature (Tg) with increasing Nd2O3 at expense of B2O3 contents. Vicker hardness (Hv) and density (D) are used to correlate the glass structure with its properties. The measured density is found to be increased whereas the molar volume is decreased with increasing Nd2O3 content. The calculated molar volume (Vm) and free spaces (Vf) are both decreased due to filling process which is suggested to be carried out by Nd3+ of larger size than that of B3+. Decreasing of Vm and Vf can reflect the increase in bridging bonds in the glass network which in turns results in increasing of both Tg and of the investigated compositions.
An Experimental Millimeter Wave Radio over Fiber Link with Double Polarization Multiplexing
Authors: Badraoui Nada , Berceli Tibor 
Published: February 2021

Abstract
A novel approach, an optical radio over fiber link with double polarization multiplexing is presented. In the two orthogonal polarizations of the optical beam the contents of information to be transmitted are different doubling the link capacity this way . For experimental verification a millimeter wave radio over fiber link with double polarization multiplexing has been developed. To ensure low cross polarization an incoherent approach is used. A high quality signal transmission is achieved by a proper procedure providing high polarization extinction ratio. In the experimental investigations different bit rates and fiber lengths are used. A signal with 12 Gbit/s bit rate is transmitted over a 25 km long link with about 1.10 -8 bit error rate. That result is much better than the already published data measured on experimental links.
The Effect of Variation Sensitivity Against Time For Magnesium Oxide (MgO) Doped Polyaniline Nanocomposites Influenced By Ammonium Persulfate
Authors: B MANJUNATHA , Jabnoor Rahul , kalyane Sangshetty 
Published: February 2021

Abstract
Polyaniline and doped polyaniline was prepared by the method of insitu chemical oxidative polymerization with ammonium persulfate as an oxidant agent. The composite polyaniline was mixing the magnesium oxide and polyaniline with the PANI matrix distributions. Polyaniline composite of MgO characterized like as x-ray diffractometer shows structural properties. The electrical properties of polyaniline and composite polyaniline as a conductivity increases with increase in frequency. The sensor property shows the sensitivity with the help of time obtained the sensitivities values the ranges from 120 to 160% from these composites in 50% composite the sensitivity is high.
Leaching of Polar Herbicides in the Presence of Designed Carbon Sorbents in Soil
Authors: Yavari Saba , Asadpour Robabeh , Kamyab Hesam , Yavari Sara , Kutty Shamsul Rahman Mohamed , Baloo Lavania , Manan Teh Sabariah Binti Abd , Chelliapan Shreeshivadasan , Sidik Azwadi Bin Che 
Published: February 2021

Abstract
Imidazolinones are polar herbicides with high leaching potential making them potential threat to environment quality. Biochar, a carbon sorbent, can efficiently stabilize substances and could be used to reduce the pesticides leaching. This work was conducted to study biochar effects on leaching of imazapic, imazapyr, and a mixture of them (Onduty®) for the first time. Leaching columns were used during lab experiments. Soil amendment with biochars produced from oil palm empty fruit bunch and rice husk significantly reduced the herbicides leaching percentages. 16% of imazapic was leached from biochar-free soil. For rice husk and empty fruit bunch biochar-amended soils the amounts were 4.3% and 3.6%, respectively. The highest percentage of imazapyr was leached out from non-amended soil (14.2%) followed by rice husk (4.0%) and empty fruit bunch (2.8%) biochar-amended soils. 15.2% of the applied Onduty® was leached from non-amended soil. Rice husk and empty fruit bunch biochars could reduce the herbicide leaching to 4.2% and 3.0%, respectively. Soil amended with biochars retained the higher percentages of the herbicides in top 7.5 cm depths. Total herbicides amounts adsorbed by biochars were more than 95%. It was concluded that biochar application has the potential to decrease imidazolinones leaching and their environmental pollution.