bluuebunny/crossref_metadata_2025_split huggingface dataset:
Exfoliated g-C3N4/γ-Fe2O3/ZnO yolk-shell nanoparticles: A novel and magnetic recyclable photocatalyst towards eco-friendly degradation of organic pollutants using visible light irradiation
Authors: Ghasemzadeh Maryam Sadat , Ahmadpour Ali 
Published: March 2023

Abstract
Herein, a new visible-light active exfoliated g-C3N4/γ-Fe2O3/ZnO yolk-shell nanoparticles (NPs) was synthesized as a magnetically separable photocatalyst. For an in-depth understanding of the magnetic photocatalyst's structural, morphological, and optical properties, the products were extensively characterized with FT-IR, XRD, TEM, FESEM, EDS, VSM, DRS, EIS, and Photocurrent. The photocatalyst was then utilized to degrade Levofloxacin (LEVO) and Indigo Carmine (IC) by visible light at room temperature. The exfoliated g-C3N4/γ-Fe2O3/ZnO yolk-shell NPs photocatalyst revealed 80% and 95.6% degradation efficiency for Levofloxacin and Indigo Carmine within 25 and 15 min, respectively. In addition, the optimal factors such as concentration, loading of photocatalyst and pH was also assessed. Levofloxacin degradation mechanistic studies showed that electrons and holes significantly contribute to the photocatalytic process of photocatalyst degradation. In addition, after 5 times regeneration, exfoliated g-C3N4/γ-Fe2O3/ZnO yolk-shell NPs remained as an excellent magnetic photocatalyst for the environmental-friendly degradation of Levofloxacin and Indigo Carmine (76% and 90%), respectively.
Study on carbon capture characteristics of marine engine exhaust gas by activated potassium carbonate absorbent
Authors: Zhou Song , Ren Jianjun , Xi Hongyuan , Lu Shijian , Shreka Majed , Zhu Yunlong , Zhang Boyang , Hao Ze 
Published: March 2023

Abstract
Post-combustion carbon capture is a direct and effective way for onboard carbon capture. Therefore, it's important to develop onboard carbon capture absorbent that can both ensure a high absorption rate and reduce energy consumption of desorption process. In this paper, a K2CO3 solution was first established using Aspen Plus to simulate CO2 capture from the exhaust gases of a marine dual-fuel engine in diesel mode. The lean and rich CO2 loading results from the simulation were used to guide the selection and optimization of the activators used in the experiment. During the experiment, five amino acid salt activators including SarK, GlyK, ProK, LysK, and AlaK, and four organic amine activators including MEA, PZ, AEEA, and TEPA were used. Experiments only considered the activation effect of CO2 loading between lean and rich conditions. The results showed that after adding a small amount of activator, the absorption rate of CO2 by the absorbent was greatly improved, and the activation effect of organic amine activators was stronger than that of amino acid salts. Among the amino acid salts, the SarK-K2CO3 composite solution showed the best performance in both absorption and desorption. Amongst the amino acid salts and the organic amino activators, SarK-K2CO3 showed the best performance in strengthening the CO2 desorption while PZ-K2CO3 enhanced the CO2 absorption process the most. In the study of the concentration ratio, it was found that when the mass concentration ratio was 1:1 for SarK:K2CO3 and PZ:K2CO3, the CO2 absorption and desorption processes improved well.
Consumption of Green Tea Extract Tablets Improved Anticoagulant Proteins and Reduced Platelet Aggregation in Transfusion-Dependent β-Thalassemia Patients
Authors: Petiwathayakorn Touchwin , Hantrakool Sasinee , Settakorn Kornvipa , Hutachok Nuntouchaporn , Tantiworawit Adisak , Chalortham Nopphadol , Koonyosying Pimpisid , Srichairatanak Somdet 
Published: March 2023

Abstract
Hypercoagulability and increased platelet activation have been associated with iron-overloaded β−thalassemia patients resulting in thrombosis. Iron chelators, antiplatelet and antithrombosis drugs are required to alleviate these complications. Epigallocatechin−3−gallate (EGCG)−rich green tea extract (GTE) is known to exert iron-chelating and antithrombotic activities. This study aimed to assess the effects of GTE tablet consumption on coagulation, platelet function and iron overload in transfusion-dependent β-thalassemia (TDT) patients. Each day, the subjects consumed a placebo, a single GTE tablet (50 mg EGCG equivalent) or GTE tablets (2x 50 mg EGCG equivalent) over a period of two months. Blood was then collected for analyses of platelet numbers, coagulation, platelet aggregation and iron parameters. Accordingly, GTE tablets significantly reduced the aggregation of platelets that had been induced ex vivo by ADP or collagen. The tablets also increased plasma protein C and protein S activities, as well as free protein S concentration levels depending upon the time course but not the GTE dosage. Surprisingly, plasma ferritin levels were decreased in both GTE tablet groups in a time-dependent manner, for which a significant difference was observed in the second month. In conclusion, EGCG−abundant GTE improved platelet aggregation and hypercoagulability in TDT patients by increasing the antithrombotic activity of protein C and protein S. Thus, GTE can be an adjuvant to reduce the risk of thrombosis associated with iron overload.
Factors governing the erythropoietic response to intravenous iron infusion in patients with chronic kidney disease; a retrospective cohort study
Authors: Chukwu Chukwuma Austin , Gilbody Helen , Wickens Olivia , Carroll Craig , Bhandari Sunil , Kalra Philip A 
Published: March 2023

Abstract
Background
This study aimed to evaluate the erythropoietic response to parenteral iron in iron-deficient anaemic patients with normal and impaired kidney function and determine the factors that affect response.
Method
Recipients of parenteral iron from the CKD and pre-operative clinics of a tertiary kidney centre were evaluated. No patients were receiving erythropoiesis stimulating agents. The key outcome was the change in haemoglobin(∆Hb) defined as the difference between the pre-infusion and post-infusion haemoglobin(Hb) measured within 1- 3 months of iron infusion. Propensity-score matching, and multivariate linear regression adjusted for baseline demographics, comorbidities and iron indices were used to assess response to parenteral iron and the impact of kidney impairment versus the nature of iron deficiency (absolute iron deficiency [AID] vs functional iron deficiency [FID]) on response.
Results
732 subjects (834 infusions) were included (mean age 66±17years, 56% females and 87% White). Median haemoglobin rise was significantly lower with lower kidney function (CKD0-2, 13[IQR, 2-23]g/l; CKD3-5; 7[IQR,1-15]g/L, P<0.001). When groups with different degrees of renal impairment were propensity-matched according to whether iron deficiency was due to AID or FID, the severity of renal impairment was no longer a factor affecting haemoglobin response (unmatched [14.2 vs 8.3]g/l, matched[14.1vs13.6] g/L). However, comparing AID and FID after propensity matching for the degree of renal impairment showed a significantly lower response in those with FID (unmatched AID vs FID 16.0 vs 6.6 g/L, matched 14.2 vs 6.6g/L).
The multivariate analysis showed a positive association between ∆Hb and body mass index, total iron dose and glomerular filtration rate, whereas a negative association was observed between haemoglobin response and Black ethnicity, Asian ethnicity, diabetes, baseline Hb, mean corpuscular volume, and Functional iron deficiency
Conclusion
The nature of iron deficiency rather than the severity of CKD has a stronger impact on haemoglobin response with an attenuated response seen in functional iron deficiency irrespective of the degree of renal impairment
Preparation of N-halamine antimicrobial cotton fabric based on plasma treatment
Authors: Liu Chang , Li Rong , Li Zhiguang , Han Luyi , Shi Rongjin , Huang Yaxun , Kan Chi-wai , Zhang Qing , Li Huixia , Zhou Chang-E 
Published: March 2023

Abstract
The textile industry has a strong interest in the antibacterial properties of fabrics. In this research, N-hydroxymethylacrylamide (N-MA) was firstly finished on cotton fabric by pad-dry processes following with argon plasma treatment to initiate the graft copolymerization of N-MA on the fabric, and then, the fabric was chlorinated with sodium hypochlorite to impart it antimicrobial property. The presence of N-MA on the cotton fabric surface was confirmed with Fourier transform infrared (FT-IR) spectra, X-ray photoelectron spectroscopy (XPS) spectra and scanning electron microscopy (SEM). The tearing strength, weight change, crystallinity and antimicrobial property of the modified fabric were also characterized. The results showed that the fabric completely inactivated S. aureus and E. coli O157:H7 within 10 min of contact time and the antimicrobial property was rechargeable. This N-halamine antimicrobial cotton fabrics with superior antimicrobial properties exhibited potential for future application in the long term antimicrobial field.
HGMMEM Algorithm with Optimized DCNN Classification for Breast Cancer Image Screening and Detection
Authors: Babu Anu , Jerome S. Albert 
Published: March 2023

AbstractMammography is a safe diagnostic and painless procedure that uses low-dose x-rays for the early detection of breast cancer. Quality of mammogram images can be enhanced using digital image processing tools so as to assist physicians. A lot of researchers had worked on enhancing the quality and classification of mammogram images. Choosing appropriate prediction algorithm for the classification of mammogram images and proper decision support systems remains a major task in the research field. Here, in this research article of experimental analysis work, mammography images are taken from the both Public Digital Database of Screening Mammography (DDSM), and in-house clinical datasets from Metro scans and laboratories. The proposed work was carried out in four phases in which the first phase was the selection of suitable algorithm for denoising and contrast enhancement of the mammogram image by using Trilateral Filter with Histogram Equalization (TFHE). Second stage involved segmenting the denoise image and applying the Hierarchical Gaussian Mixture Model and Expectation-Maximization technique to detect the breast tumor accurately. Third stage entails extracting the GLCM features from the segmented ROI image. Finally, benign and malignant breast cancer images are classified using four different classifiers. Using TCKNN classifier, accuracy of 72.1% is obtained, DCNN classifier an accuracy of 89.4% is obtained, IMPA with TCKNN classifier an accuracy of 80.1% is obtained and IMPA with DCNN classifier an accuracy of 97.6% is obtained.
An Efficient Memristive Alternating Crossbar Array and The Design of Full Adder
Authors: Jiang Meiqi , Sun Jingru , Wang Chunhua , Liao Ziyao , Hong Qinghui , Zhang Jiliang 
Published: March 2023

Abstract
Memristor is one of the most promising emerging technology to solve the von Neumann bottleneck problem due to its non-volatile and binary characteristics. This paper studies the design method of high efficiency logic circuit based on memristor. First, a Multiple Input Multiple Output (MIMO) logic circuit design scheme based on IMPLY and AND logic is proposed, which can derive multiple new efficient logic operation methods, and complete complex logic with fewer steps and memristors. Second, in order to perform rapid interactive operations between different rows, an alternating crossbar array structure is designed, which can quickly complete cross-row logic operations. Finally, a high-efficient Full Adder (FA) based on MIMO logic and alternating crossbar array is proposed. To accomplish 32-bit add operation, the proposed FA needs 160 memristors and only 41 steps. Compared with the state of art FA, our work has faster execution speed and fewer memristors.
Theoretical and numerical model to study the interlayer gap phenomenon during robotic one shot drilling of stacked materials
Authors: Panico Martina , Durante Massimo , Langella Antonio , Boccarusso Luca 
Published: March 2023

Abstract
Nowadays in different industrial fields, especially in aircraft manufacturing industry, the use of stacked material plays a relevant role. To allow the correct assembly of parts, one shot drilling is the best option to avoid misalignment and increase the productivity. In this context, the formation of the interlayer gap and its consequences in terms of final hole quality and structural integrity is a relevant aspect that need to be investigated and reduced. The growing push towards the implementation of automated drilling solutions offers the advantage of using the robot end effector for the minimization of this phenomenon, but few works offer a useful analytical study of the robot-workpiece interaction in terms of force based on real operating boundary conditions. This work aims to provide a simplified theoretical model to study the interlayer gap phenomenon and to predict the clamping force required for its reduction by using a robot end effector on metal stacked plates. Both experimental and finite element analyses were carried out in order to validate the results of the proposed theoretical model. The results obtained in this study showed that the proposed simplified one-dimensional theoretical model allow to obtain suitable results despite the complexity of the phenomenon studied.
Tribological Effects of Micromilling of Hardened Aisi D2 Steel on Tool Wear and Top Burr Formation
Authors: Santos Anderson Júnior dos , Medânha Bárbara Cristina , Pereira Natália Fernanda Santos , de Oliveira Diogo Azevedo , Rubio Juan Carlos Campos , Abrão Alexandre Mendes , Câmara Marcelo Araújo 
Published: March 2023

Abstract
The study of micromilling of quenched and tempered AISI D2 steel is of utmost importance due to the accelerated wear of the micromilling cutting tool edge that intensifies the formation of top burrs, which is detrimental to the micromilled surfaces because requires further surface finishing. In this work, the effect of tooth feed per tooth and depth of cut on machining forces and top burr formation after dry micromilling of slots in quenched and tempered AISI D2 steel was evaluated. The results show that the passive force is approximately 32% higher than the radial and feed forces. Regarding burr formation, axial depth of cut was the most relevant parameter. Doubling depth of cut burr height increased by approximately 400%. Increasing feed per tooth reduces burr formation. The down cutting direction presented top burr heights approximately 23% higher when compared with up cutting. Abrasion and adhesion were the predominant tool wear mechanisms. Tool wear increases progressively with machining length raising the milling force components. which leads to rounding and increase the radius of the cutting edge. Consequently, a negative rake angle is generated, inducing size effect and intensifying the material ploughing mechanism.
Identifying the regulatory network of microRNAs and mRNAs to clarify molecular mechanisms in stroke by bioinformatics analysis
Authors: Cen Gengyu , Xia Yumei , Chen Shijian , Liu Liuyu , Wang Jun , Wang Xue , Song Yiting , Liang Zhijian 
Published: March 2023

Abstract

To identify the regulatory network of microRNAs (miRNAs) and mRNAs to clarify molecular mechanisms in stroke. Four miRNA datasets and two mRNA datasets of stroke were downloaded from the GEO database. R-Studio was utilized to analyze differentially expressed miRNAs (DEmiRNAs) and mRNAs (DEmRNAs) in the blood of stroke and control patients. FunRich software was utilized to conduct GO and biological pathway analysis on DEmiRNAs, and to search for transcription factors (TFs) of DEmiRNAs. Subsequently, we used miRDB, miRTarBase, and TargetScan to identify DEmiRNAs target genes and intersected with DEmRNAs to find common target genes. The miRNA-mRNA regulatory network of common target genes was constructed by using the Cytoscape. The biological and functional roles of target genes in the regulatory network were predicted using GO and KEGG pathway analyses. 464 DEmiRNAs and 329 DEmRNAs were screened, respectively. The top ten TFs (SP1, SP4, EGR1, TCF3, NKX6-1, ZFP161, RREB1, MEF2A, NFIC, POU2F1) were visualized. 16747 target genes of DEmiRNAs were predicted. Target genes were intersected with DEmRNAs, 107 common target genes and 162 DEmiRNAs regulating these common genes were obtained, and then a regulatory network was constructed. Target genes of the regulatory network were primarily enriched in VEGF signaling pathway, lipid and atherosclerosis, T cell receptor signaling pathway. This study found that VEGF signaling pathway, lipid and atherosclerosis, T cell receptor signaling pathway are implicated in the biological process of stroke by constructing the regulatory network of miRNAs-mRNAs, which may have guide significance for the pathogenesis and treatment of stroke.
Climate Change Hotspots for Türkiye
Authors: An Nazan , Turp Tufan M. , Bayındır Elif , Akverdi Yagmur , Mirza Zeynep Nur , Kurnaz Levent M. 
Published: March 2023

Abstract
Globally, each region will be affected by climate change at different risk levels depending on various indicators (e.g., increased average temperatures, changes in precipitation patterns, and extreme climate events such as floods, droughts, and wildfires). Therefore, identifying the “hotspots” that will be the most affected areas by climate change in the future is a crucial step for the rapid adaptation of these regions to the changing climate. A region’s vulnerability to climate change also depends on the change in fundamental variables, i.e., temperature and precipitation, and the variability and frequency of these parameters. The study estimated the Standard Euclidean Distance (SED) for Türkiye using high-resolution climate data and examined which regions would be the most affected in the near (2024-2049), medium (2049-2074), and distant (2074-2099) future. The projections were made using the RegCM4.4 driven by MPI-ESM-MR under the pessimistic (RCP8.5) scenario. The results indicate that the Mediterranean, Eastern Anatolia, and Southeastern Anatolia are the hotspot regions in Türkiye. In line with the findings, it is necessary to minimize the possible damage by taking the required precautions in these regions.
Translation and Psychometrics of Persian Version of the Stress Index in Nursing Students
Authors: Hamzehpour Hero , Ebadi Abbas , Abbasi Saeed , Mohammadi Marziye 
Published: March 2023

Abstract
Background and Purpose: Stress is caused by the nature of nursing education and is a psychological factor that affects academic performance and well-being of students. This study was conducted with the aim of determining the psychometric characteristics of Persian version of the Nursing Student Stress Index (SNSI).
Methodology: The SNSI questionnaire was translated into Persian using the standard method of translation and re-translation. Then, in a cross-sectional study, it was distributed among 408 nursing students of different levels using available sampling method. Reliability was determined by Cronbach's alpha coefficient and test-retest repeatability. Construct validity was determined by exploratory (n=208) and confirmatory (n=200) factor analyses.
Findings: The Persian version of this questionnaire has 19 items and three factors of "expectations, communication and health", "factors related to university" and "free time". The total content validity index score (S-CVI) was 0.88. The fitness indices in this three-factor questionnaire were in the order: RMSEA=0.11, CMIN/DF[1]=3.7, CFI=0.93, GFI=0.79, AGFI=0.73. The intra-cluster correlation index (ICC) was 0.881 and Cronbach's alpha was 0.863.
Conclusion: SNSI has good validity and reliability in nursing students in Iran and this version can be used in future researches in the field of stress measurement of nursing students.
1Minimum Discrepancy Function by Degrees of Freedom divided
Multiparametric prediction of glioma grade and IDH status using 18F-FET PET/CT dynamic and texture analysis
Authors: Hajri Rami , Nicod-Lalonde Marie , Hottinger Andreas F. , Prior John O. , Dunet Vincent 
Published: March 2023

Abstract
Background
Gliomas are the most frequent malignant brain tumors and are heterogeneous in histology, genetics, and outcome. Mutations in isocitrate dehydrogenase (IDH) have been described by several studies as an independent predictor of better survival. We aimed at evaluating the respective value of O-(2-[18F]fluoroethyl)-L-tyrosine (18F-FET) PET/CT dynamic and texture analysis in patients with untreated glioma to assess grade and IDH mutation status.
Methods
In total, 73 patients (male: 48, median age: 47 [36–59]) who underwent an 18F-FET PET/CT for initial glioma evaluation were retrospectively included. Twenty patients had a WHO grade II and forty-one a grade III-IV glioma. IDH status was available in 61 patients. Time-activity-curve (TAC) type and 20 parameters (conventional, texture, shape and histogram derived) obtained from static analysis using the LIFEx© software were recorded. Respective performance was assessed using receiver operating characteristic (ROC) curve analysis and stepwise multivariate regression analysis.
Results
TAC type and several texture parameters derived from static parameters showed satisfactory to good performance to predict glioma grade and IDH status. Both TAC type (stepwise OR: 28.8 [95%CI: 4.73-175.14], p < 0.001) and NGLDM coarseness (stepwise OR: 9.7 x 1019 [95%CI: 1.47–6.5 x 1039], p = 0.048) were independent predictors of glioma grade. However, only TAC type was an independent predictor of IDH status (OR: 3.74 [95%CI: 1.17-12.0], p = 0.026).
Conclusions
18F-FET PET/CT dynamic and texture analysis may help predict both glioma grade and IDH status, especially in low-grade tumors.
Newly detected pediatric melioidosis cases in a single referral children’s hospital in Ho Chi Minh City indicate the probable under-recognition of melioidosis in South Vietnam
Authors: Pham Thai Son , König Elisabeth , Bui The Trung , Vu Thi Ngoc Anh , Nguyen Tran Nam , Do Chau Viet , Lichtenegger Sabine , Bui Nguyen Hai Linh , Trinh Huu Tung , Steinmetz Ivo , Trinh Thanh Trung 
Published: March 2023

Abstract
Purpose.The epidemiology of melioidosis in Vietnam, a disease caused by the soil bacterium Burkholderia pseudomallei, remains unclear. This study aimed to detect pediatric melioidosis in South Vietnam and describe clinical features and the geographical distribution.
Methods. We introduced a simple laboratory algorithm for detecting B. pseudomallei from clinical samples at Children’s Hospital 2 in Ho Chi Minh City in July 2015. B. pseudomallei culture isolates were confirmed by molecular methods. A retrospective observational study of children aged < 16 years with culture-confirmed melioidosis between July 2015 and August 2019 was undertaken.
Results.Thirty-five pediatric cases of melioidosis were detected, with cases originating from 13 out of 32 provinces and cities in South Vietnam. The number of pediatric melioidosis cases detected from a certain region correlated with the overall number of inpatients originating from the respective geographical area. Suppurative parotitis (n = 15; 42.8 %) was the most common clinical presentation, followed by lung infection (n = 10; 28.6 %) and septicemia (n = 7; 20 %). Fourteen (40 %) children had disseminated disease, including all cases of lung infection. Four (11.4 %) deaths occurred in the disseminated disease group.
Conclusions. We report here the first series of pediatric cases of melioidosis from Vietnam detected in a single big referral children’s hospital in Ho Chi Minh City. The patients’ origin indicates a wide distribution of melioidosis in South Vietnam. It seems probably that cases not only in children but also in adults remain grossly undiagnosed. Further awareness raising and laboratory capacity strengthening are needed in this part of the country.