bluuebunny/crossref_metadata_2025_split huggingface dataset:
Estimation of 2,4-dichlorophenol photocatalytic removal using different artificial intelligence approaches
Authors: Esmaeili Narjes , Esmaeili Khalil Saraei Fatemeh , Ebrahimian Pirbazari Azadeh , Tabatabai-Yazdi Fatemeh-Sadat , Khodaee Ziba , Amirinezhad Ali , Esmaeili Amin , Ebrahimian Pirbazari Ali 
Published: April 2022

Abstract
Photocatalytic degradation is one of the effective methods to remove various pollutants from domestic and industrial effluents. Several operational parameters can affect the efficiency of photocatalytic degradation. Performing experimental methods to obtain the percentage degradation (%degradation) of pollutants in different operating conditions is costly and time-consuming. For this reason, the use of computational models is very useful to present the %degradation in various operating conditions. In our previous work, Fe3O4/TiO2 nanocomposite containing different amounts of silver nanoparticles (Fe3O4/TiO2/Ag) were synthesized, characterized by various analytical techniques and applied to degradation of 2,4-dichlorophenol (2,4-DCP). In this work, a series of models, including stochastic gradient boosting (SGB), artificial neural network (ANN), adaptive neuro-fuzzy inference system (ANFIS), the improvement of ANFIS with genetic algorithm (GA-ANFIS), and particle swarm optimization (PSO-ANFIS) were developed to estimate the removal percentage of 2,4-DCP. The model inputs comprised of catalyst dosage, radiation time, initial concentration of 2,4-DCP, and various volumes of AgNO3. Evaluating the developed models showed that all models can predict the occurring phenomena with good compatibility, but the PSO-ANFIS and the SGB models gave a high accuracy with the coefficient of determination (R
2) of 0.99. Moreover, the relative contributions, and the relevancy factors of input parameters were evaluated. The catalyst dosage and radiation time had the highest (32.6%), and the lowest (16%) relative contributions on the predicting of removal percentage of 2,4-DCP, respectively.
Regenerative shock absorber using cylindrical cam and slot motion conversion
Authors: Abdulwasea Al-Othmani , Li Li , Mohammed Waleed Salman , Abdulghafour Ahmed S. 
Published: April 2022

Abstract
The increasing demand for fossil fuels has led to an increase in their prices; therefore, the regenerative shock absorber (RSA) devices were designed in conjunction with the suspension system industry, in order to reduce the vibration produced whilst driving, which has become a major concern in automobile production. With regards to vehicle development, compared with the current technology, the subject matter of this paper has the following advantages: The current design relates to the RSAs for vehicles, which has an energy recovery function, a simple and new design, a longer life span, a low cost, and are lightweight. A 45° inclined long slot steering mechanism is used in this design to collect the vibration energy generated while driving the vehicle, improving the energy use rate and saving the amount of fuel that is consumed. The reciprocating linear motion in driving the vehicle is converted into a rotational movement. Peak efficiency of 50% and the average efficiency of 45% are demonstrated in the MATLAB system. It converts mechanical energy into electrical energy and restores energy vibration using a suspension shock absorber while driving, which improves energy use and provides greater comfort for passengers while the vehicle is in motion.
Experimental investigation for the estimation of the intensity of solar irradiance on oblique surfaces by means of various models
Authors: Hassan Qusay , Jaszczur Marek , Teneta Janusz , Abbas Majid K. , Hasan Ali , Al-Jiboory Ali Khudhair 
Published: April 2022

Abstract
In the literature several models have been derived by different authors in order to predict the solar irradiance intensity over inclined surfaces, however for the most models accuracy at various inclinations have not been verified. The study evaluated the estimation of solar irradiance at different tilt angles by means of different models based on the experimental measurements. For this purpose, two groups of models (isotropic and anisotropic) were carried out: the first group of models was used for estimating the diffuse solar irradiance component, and the second group was used for estimating the global solar irradiance. Five models have been selected and implemented for the estimation of the diffuse solar irradiance component, and five models have been selected for the estimation of global solar irradiance. The results of the analysis were compared with local experimental measurements for diffuse radiation and global irradiance. There are three tilt angles (0°, 30°, 60°) and a two-axis tracking system has been determent for comparison experiments with the model estimated results. The results showed all the selected models generated an error percentage in both the diffuse and global irradiance investigations.
When internal reconstruction goes further: proposing the vowel system of Pre-Khroskyabs through examining bound state apophony
Authors: Lai Yunfan 
Published: April 2022

AbstractThis paper proposes an internal reconstruction of the vowel system of Pre-Khroskyabs by analysing bound state apophony in modern Siyuewu Khroskyabs. While most modern Khroskyabs dialects do not exhibit sufficient variations of bound state apophony, Siyuewu Khroskyabs is conservative in this regard. The internal reconstruction deals with the different reflexes between final and non-final vowels in modern Khroskyabs dialects, and postulates a unified origin for them, by hypothesising two series of vowels, velarised and plain. Velarisation in Pre-Khroskyabs is then compared with uvularisation in Tangut, showing regular correspondences between the two. This work demonstrates that velarisation is an important feature that can be reconstructed back to Proto-Gyalrongic, and that it helps us in understanding Trans-Himalayan historical linguistics. Additionally, it can be seen through this paper that internal reconstruction is an indispensable procedure in reconstructing the history of a language, as a significant portion of vocalic contrasts cannot be reconstructed by cross-linguistic comparisons alone.
Synergistic in vitro anticancer actions of decorated selenium nanoparticles with fucoidan/Reishi extract against colorectal adenocarcinoma cells
Authors: El-Hefnawy Mohamed E. , El-Sherbiny Mohsen M. , Al Harbi Mamdouh , Tayel Ahmed A. 
Published: April 2022

Abstract
Cancer-fighting needs more effective and targeted drugs, desirably with least side-effects and from natural bases. The assessment and synergistic actions of multiple anticancer drug candidates were investigated. Fucoidan (Fu) was extracted from Sargassum cinereum, which was attained from the Saudi Red-Sea coast. The extract of Ganoderma lucidum or Reishi mushroom (Re) was achieved, intermixed with Fu solution, and they were used for reducing/decorating/capping selenium nanoparticles (SeNPs). The infrared analysis of produced/synthesized agents emphasized their biochemical structures and interactions. The decorated Fu/Re/SeNPs had negative (−30.6 mV) zeta potential and the SeNPs mean particle size was 6.5 nm. The transmission imaging of SeNPs indicated their spherical profiles and well-dispersion within Fu/Re composite. The anticancer potentiality of Fu/Re and Fu/Re/SeNPs against human colorectal adenocarcinoma cells was investigated using MTT, 4′,6-diamidino-2-phenylindole staining and comet assay. Both composites exhibited potent bioactivities toward adenocarcinoma cells; the reduced cells survival was detected with IC50 of 57.82 and 16.43 µg·mL−1 for Fu/Re and Fu/Re/SeNPs, respectively. The constrained apoptosis was notably observed from treated cells with the composites; substantial molecular damages were also verified via the comet assay, especially in Fu/Re/SeNPs treated cells. The innovative innocuous composite from Fu/Re/SeNPs is highly recommended to deactivate/destruct colorectal adenocarcinoma cells.
Investigation on microstructural features and tensile shear fracture properties of resistance spot welded advanced high strength dual phase steel sheets in lap joint configuration for automotive frame applications
Authors: Rajarajan Chakkaravarthi , Sivaraj Paramasivam , Sonar Tushar , Raja Selvaraj , Mathiazhagan Nallusamy 
Published: April 2022

Abstract
The main objective of this research paper is to study the microstructural features and mechanical properties of resistance spot welded advanced high-strength steel of dual phase grade in lap joint configuration which is mainly employed in sheet form for fabrication of the automotive structure. Resistance spot welding (RSW) being a solid-state welding (SSW) process is used to overcome the problems in fusion welding of AHSS-DP steel such as heat affected zone (HAZ) softening, solidification cracking and distortion which significantly deteriorates the mechanical properties of AHSS-DP800 steel joints. The straight lap (SL-TSFL) and cross lap tensile shear fracture load (CL-TSFL) of spot joints were evaluated. Optical microscopy (OM), scanning electron microscopy (SEM), and transmission electron microscopy (TEM) techniques were used to characterize the weld nugget. The X-ray diffraction (XRD) results are also presented for phase identification in the weld nugget. The fracture surface of failed TSFL specimens was analyzed using SEM. The lap joints made using RSW disclosed superior SL-TSFL, CL-TSFL, and WNZH of 21.7 kN, 17.65 kN, and 589 HV0.5 The superior joint strength and hardness of the weld nugget zone are correlated to the evolution of lath martensite in the nugget zone.
LncRNA expression in idiopathic achalasia: New insight and preliminary exploration into pathogenesis
Authors: Lu Chao , Wei Furong , He Xinjue , Yao Xin , Yu Chaohui 
Published: April 2022

Abstract
Idiopathic achalasia is a primary esophageal motility disorder characterized by the absence of esophageal peristalsis and impaired relaxation of the lower esophageal sphincter (LES). However, the pathogenesis of idiopathic achalasia remains unclear. To further understand the pathogenesis, we conducted lncRNA and mRNA microarray analyses. LES specimens from 5 patients and 4 controls were used for microarray. Potential target genes with significantly changed lncRNA and mRNA were predicted using cis/trans-regulatory algorithms, followed by the Gene Ontology and KEGG pathway enrichment analysis to understand the biophysical effect. Finally, 7,133 significantly dysregulated mRNAs (3,136 increased and 3,997 decreased), along with 6,892 significantly dysregulated lncRNAs (4,900 increased and 1,992 decreased). Biophysical function analysis revealed that the cell adhesion molecule (CAM) pathway was a common pathway. The predicted lncRNA targets of NRXN1 (Down FC: 9.07), NTNG2 (UP FC: 2.75), CADM1 (Down FC: 2.26), NLGN1 (Down FC: 4.60), NEGR1 (Down FC: 2.335), CD22 (Down FC: 5.62), HLA-DQB1 (Down FC: 5.06), and HLA-DOA (Down FC: 2.31) were inputted in this pathway, which was mainly located in the synapse part of the neural system and immune system. Our study demonstrates the lncRNAs and corresponding mRNAs that may play important roles in idiopathic achalasia.
The crystal structure of N-cyclopentyl-3-hydroxy-4-methoxybenzamide, C13H17NO3
Authors: Zhang Jingxiao , Guo Shubin , Guo Yongnan , Yang Yanliang 
Published: April 2022

Abstract
C13H17NO3, monoclinic, Cc (no. 9), a = 11.6502(8) Å, b = 13.8752(8) Å, c = 7.9644(5) Å, β = 106.051(2)°, V = 1237.25(14) Å3, Z = 4, R

gt
(F) = 0.0427, wR
ref(F
2) = 0.1023, T = 170 K.
Rediscovered Mesolithic Rock Art Collection from Kamyana Mohyla Complex in Eastern Ukraine
Authors: Radchenko Simon 
Published: April 2022

Abstract
The unique rock art complex of Kamyana Mohyla in South-Eastern Ukraine is known due to its numerous cave art engraved elements and settlements, which show how important is this site in the general picture of European prehistory as regards the Mesolithic, Neolithic and Bronze Age periods of the region. However, the assemblages from this site include also a collection of portable rock art artifacts called “churingas.” Important elements of this assemblage are thought to belong to the Mesolithic. These specimens illustrate different aspects of the artist’s worldview and are capable of revealing a lot of additional data on the technological and cultural aspects of their creation. However, their study is complicate because of a very abstract imaging, lack of systematic approach to the artifact classification and absence of a well-defined stratigraphic context from which they have been recovered. Likely, current state of archaeological record and modern technologies introduces the new opportunity to rediscover, reconsider and reshape this collection.
Molecular Characterization of Anguilla sp. with Special Notes on Its Population Genetic in the Rivers of Cilacap Central Java, Indonesia
Authors: Nuryanto Agus , Riani Sri , Bhagawati Dian , Winarni Elly Tuti , Rachmawati Farida Nur 
Published: April 2022

Taxonomic status of Anguilla species in the rivers of Cilacap is vital for further study, such as population genetics and evolutionary history. Taxonomic status, population genetic, and evolutionary histories of Anguilla can be assessed using single genetic marker, such as cytochrome oxidase 1 gene. This study aimed to determine taxonomic status, genetic diversity and connectivity, and evolutionary history of Anguilla populations in the rivers of Cilacap. Anguilla samples were collected from Doplang-Serayu and Segara Anakan watersheds. Sequence homology test to the conspecific sequence in GenBank proved that all samples from Doplang-Serayu watershed were genetically identified as Anguilla bicolor (98.23 to 100% homology). The decision was supported by monophyly between samples and their conspecific references. Anguilla bicolor from both watersheds had high haplotype (gene) diversity. Amova and Fst analysis proved that no genetic difference (p=0.623) was observed between Doplang-Serayu and Segara Anakan watersheds, indicated panmixing. Haplotype network proved that both populations were evolved from two primitive ancestors. This study concluded that Anguilla bicolor was the only freshwater eel observed in the rivers of Cilacap. Anguilla bicolor in the rivers of Cilacap has high genetic diversity but no genetic differentiation was observed among populations. Anguilla bicolor population in the rivers of Cilacap evolved from two primitive ancestors.
Les obstacles des élèves de classe X de SMA Negeri 2 Mranggen en enseignement à distance du français utilisant CHAMILO
Authors: Tyas Ayuning , Astuti Dwi 
Published: April 2022

Abstract
Dans le milieu scolaire, pour prévenir la propagation et la transmission du virus Covid19 pendant la pandémie, les activités d'apprentissage et d'enseignement sont changées en apprentissage à distance qui est très différent de l'apprentissage direct afin que les élèves puissent avoir des obstacles.Chamilo est un système de gestion de l'apprentissage qui est utilisée seulement à SMA Negeri 2 Mranggen. Le but de cette étude est de savoir quels obstacles sont eu par les élèves dans l'apprentissage à distance des matières françaises utilisant Chamilo à SMAN 2 Mranggen.Cette étude est celle de descriptive quantitative. La variable de cette étude est les obstacles des élèves dans l'enseignement à distance des matières françaisesutilisant Chamilo à SMAN 2 Mranggen. Les répondants de cette étude est les élèves de la classe X MIPA 4 SMAN 2 Mranggen. Les données obtenues ont analysées à l'aide d'une analyse descriptive en pourcentage. Les résultats de cette étude indiquent que les obstacles des élèves de la classe X de SMA Negeri 2 Mranggen dans l'enseignement à distance utilisant Chamilo dans les matières françaises comprennent des facteurs internes et externes. Les facteurs internes sont la motivation à apprendre dont le pourcentage est de 40,96 %, la perception de l'enseignement à distance dont le pourcentage est de 24,32 % et l’intérêt à apprendre dont le pourcentage est de 19,57 %, ensuite les facteurs externes sont les installations et les infrastructures dont le pourcentage est de 15,15%.
Abstract
Chamilo is a learning management system that is only used at SMA Negeri 2 Mranggen.The purpose of this study was to find out what obstacles were experienced by students in distance learning French subjects using Chamilo at SMAN 2 Mranggen. This research is descriptive quantitative. The variable in this study is the obstacles of students in distance education of French subjects at SMAN 2 Mranggen. Respondents to this study are students of class X MIPA 4 SMAN 2 Mranggen. The data obtained analyzed using descriptive percentage analysis. The results of this study indicate that the obstacles for class X students of SMA Negeri 2 Mranggen in distance learning in French subjects using Chamiloinclude internal and external factors. Internal factors are in the form of learning motivation with a percentage of 40.96%, perceptions about distance learning with a percentage of 24.32%, and interest in learning with a percentage of 19.57%, while external factors are in the form of facilities and infrastructure with a percentage of 15.15%.
Interrelation: gastric microbiota - acid-dependent diseases, and more…
Authors: Babin Alexandru 
Published: April 2022

Introduction. The relationship between gastric microbiota and acid-dependent diseases is currently not fully studied. The study is based on a review of the literature to analyze and reflect the available data on the interaction of gastric microbiota and acid-dependent diseases, as well as brain-gut diseases.
Methods. The survey was performed by analyzing data from Medscape, PubMed, Elsevier. The articles analyzed are in English, Romanian, Russian, published in the last 10 years. Data on the composition (landscape) of the gastric microbiota and their influence on acid-dependent diseases and digestive diseases in general were reflected.
Results. The research reflected that in addition to Helicobacter pylori infection, the landscape of the gastric microbiota in the acid stomach (with low pH) is not sterile and includes other types such as: Proteobacteria, Firmicutes, Actinobacteria, Bacteroidetes, Fusobacteria. At the same time, current methods document a bacterial load of 1010-1012 (CFU) / mL in the colon, which is much higher than in the stomach, where it reaches 102-104 CFU / mL. H.pylori influences the diversification of the non-H.pylori gastric microbiota; Decreased diversification increases the risk of carcinogenesis. The aspects of the role of H. pylori in functional dyspepsia, named after the Maastricht Consensus V - H. pylori dyspepsia, were also demonstrated.
The taxonomic profiles (Philum-level, Genus-level) of the gastric microbiota require the study of the interrelationships with acid-dependent diseases, as well as the feedback.
Conclusions. The study shows that the stomach is not a sterile organ and in addition to H. pylori there are 5 other types of gastric microbiota, which are interrelated with acid-dependent diseases and digestive disorders and vice versa. This issue requires a comprehensive approach
The impact of liver steatosis on the postoperative evolution after right lobe living-donor hepatectomy
Authors: Peltec Angela , Hotineanu Adrian , Popescu Irinel , Brașoveanu Vladislav 
Published: April 2022

Background. Living donor liver transplantation has become a feasible treatment modality for end-stage liver disease. The obesity epidemic worldwide has made it increasingly common to encounter liver steatosis in living donor candidates. The aim of study was to analyze the impact of moderate hepatic steatosis on the postoperative evolutions after right lobe living-donor hepatectomy.
Methods. Living donors who underwent donor hepatectomy during the period 2000 to 2020 in two medical centers were included in this study. We distinguished 3 groups based on the degree of steatosis: Group O - 0%, Group I - 1–10% and Group II >10%.
Results. A total number of 157 living donors underwent surgery, of whom 112 (71.34%) were right lobe liver donors. There were 62 without steatosis, 31 – with steatosis 1-10% and 19 with steatosis >10%. No difference has been found in proportion of men, median of age, body mass index and left lobe/total liver volume ration in compared groups. Total liver volume was significantly higher in the Group I than in the Group O (p=0.028). The moderate HS group presented significant higher volume of intraoperative hemorrhage than no-HS group (p=0.041). No differences were observed in the postoperative liver function between the groups. The minimal HS group comprised a significantly higher proportion of postoperative complications than no-HS group (67.7% vs 40.3%, p=0.043). The longer postoperative length of hospital stay in ICU was observed in Group I than in Group O (p=0.024).
Conclusion Moderate HS does not importantly impair living liver donors’ safety.
Pregnancy and COVID-19 - liver damage
Authors: Tofan-Scutaru Liudmila , Tcaciuc Eugen , Turcan Svetlana 
Published: April 2022

This review examines information from systematic reviews and meta-analyses, research studies, and case reports to present current knowledge about liver damage in pregnant patients having Covid-19 during pregnancy. Problems with diagnosis and differential diagnosis are examined in the context of the need to rule out other causes of liver dysfunction, including pregnancy-related liver disease. In this paper we give an overview of COVID-19 liver problems during pregnancy. Mechanisms of liver involvement in COVID-19 infection are being examined. An overview of the assessment of abnormal liver biological syndromes in pregnant patients is provided. Differential diagnostic algorithms for primary liver damage established in a pregnant woman in the context of the Covid-19 pandemic are presented. Challenges in diagnosis and etiology assessment methods and customized management options are described.
The management of pregnant women with hepatic dysfunction onset on the Covid-19 background and subsequently aggravated is discussed. The importance of anticoagulant therapy as an essential measure of symptomatic management of Covid-19 in pregnant women is emphasized, as both pregnancy and COVID-19 are thrombogenic. Hypercoagulability appears to adversely affect the pregnant women liver with Covid-19 and post Covid-19 and anticoagulant therapy has benefits in the management of liver damage associated with Covid-19.
The COVID-19 liver problems in a 33-year-old woman who was not vaccinated for Covid-19, without a history of chronic liver disease, was tested positive for Covid-19 at 33 weeks of gestation is discussed. The report of the diagnostics, differential diagnosis, and management questions in the context of liver dysfunction manifested by a significant increase in alanine aminotransferase cytolysis syndrome. The positive effect of anticoagulant therapy in resolving cytolytic syndrome is emphasized. The good maternal and perinatal result is also mentioned.