bluuebunny/crossref_metadata_2025_split huggingface dataset:
Left Atrial Function in Young Strength Athletes: Four-Dimensional Automatic Quantitation Study
Authors: Liu Mengmeng , Sun Mengjiao , Li Lijin , Li Pengge , Hou Suyun , Li Zhen , Sun Xinxin , Hua Shaohua 
Published: December 2021

Abstract
Background
Athletes might suffer from potentially fatal heart disease, which has always been a concern in cardiovascular medicine. The changes in left atrial (LA) size and function are related to the occurrence of arrhythmia. In the present study, four-dimensional automatic quantitation (4D LAQ) was used to explore the changes in LA function of young strength athletes.
Methods
Eighty professional young strength athletes and sixty healthy young adults matched in age were selected for the study. The LA volumes and strains were automatically analyzed by 4D LAQ. The receiver operating characteristic (ROC) curves were used to evaluate the diagnostic value of strain in athletes' LA function. Pearson correlation analysis was performed to assess the potential association between conventional echocardiographic indexes and 4D parameters related to athletes' LA function.
Results
Compared to the control group, LA longitudinal and circumferential strain in the athlete group decreased, while LA volume increased (P<0.05). However, LA strain was similar among 45 male and 35 female strength athletes (P>0.05), while male athletes presented with a higher LA volume when compared to female controls (P<0.05). ROC curve analysis showed that LA contraction longitudinal strain (LASct) was the best predictor in evaluating athletes' LA function. Athletes' heart rate and left ventricular mass index were significantly correlated with 4D LA function parameters.
Conclusions
4D LAQ can be used for early detection of the changes in LA function in young strength athletes. There was no significant difference in LA strain between male and female athletes. The LASct was the most effective index for evaluating athletes' LA function.
Oviposition Preferences of Oriental Fruit Moth Grapholita Molesta (Lepidoptera: Tortricidae) To Pear HIPVs
Authors: Liu Chia-Ming , Phukhahad Supannee , Auamcharoen Wanida , Matsuyama Shigeru , Kainoh Yooichi 
Published: December 2021

Abstract
Herbivore-induced plant volatiles (HIPVs) are regarded as an indirect plant defense against herbivores, since they attract natural enemies to the infested plant. On the other hand, HIPVs also affect behavioral responses of herbivores. In a previous study, Lytopylus rufipes, a parasitoid of the oriental fruit moth (Grapholita molesta), showed positive responses to pear HIPVs, but the influence of pear HIPVs on G. molesta is still unclear. To better understand these responses, we first tested oviposition preferences of G. molesta to uninfested and infested pear shoots (US and IS, respectively) and uninfested mature leaves (ML) in dual-choice bioassays with a cylindrical tube. Then, preferences to volatile components were also assessed. Results show that G. molesta females preferred US-, IS-, and ML-treated areas compared to the control area (no leaves), respectively. Subsequently, G. molesta females preferred IS over US, and US more than ML when comparing pear tissues. Furthermore, G. molesta females didn’t show any significant preference to individual volatile components, but more eggs were laid in the area treated with a synthetic pear HIPV blend, compared to the hexane-treated area (control). These results indicate that G. molesta females do not avoid infested pear shoots nor HIPVs. Moreover, HIPVs may recruit not only natural enemies, but herbivores to the release point of HIPVs. Thus, it is important to examine the responses of G. molesta females to HIPVs in the field before employing them for pest management.
"Research ends with publication": A qualitative study on the use of health policy and systems research in Ethiopia
Authors: Birhanu Zewdie , Morankar Sudhakar , Abraham Gelila , Shroff Zubin 
Published: December 2021

Abstract
Background
Decision-making about the design and implementation of health care policies should be supported by research evidence. This article reports on a qualitative study on the experiences of both research institutes and policymakers in Ethiopia in generating and using research evidence to inform health policy decision-making.
Methods
Semi-structured interviews were conducted from January through March 2020, with representatives of research institutes and with policymakers in Ethiopia. The data collected during the interviews were analyzed thematically.
Results
Half of the institutions represented had engaged in health policy and systems research (HPSR). These institutes’ capacities were limited by multiple factors, including unsupportive research environments; the limited number of researchers with extensive experience; high turnover among senior researchers; lack of staff motivation mechanisms; underdeveloped research culture; limited technical and analytical capacity among researchers; lack of core funding for HPSR; ineffective financial management; and, lack of connections with health policy platforms. Research institutes also lacked the capacity in strategic packaging of findings to influence policy decision-making, although some programs have recently improved in this area. Meanwhile, there lacked a culture of using evidence in policymaking settings. In general, we found that policymakers had poor attitudes towards the quality or value of the evidence, and had little capacity to interpret evidence and apply findings to policy options. As a result, much of the research produced by the institutes have only been relevant academically, with little impact on policy. However, respondents reported that the environment is slowly changing, and the recent creation of a Research Advisory Council at the Ministry of Health offers a promising model.
Conclusions
Despite some recent changes, in Ethiopia researchers and policymakers alike often tend to consider health policy and systems research (HPSR) to be not very valuable since the findings generated are rarely used for evidence-informed policy development. Research institutes and researchers need to strengthen their technical, analytical, and administrative capacities (through, among other efforts, seeking more funding for research, and better incentives to attract, retain and build skills among qualified researchers); they also need to improve their understanding of the evidence-to-policy cycle and how to engage effectively with policymakers.
Yonghaparkia Aerolata sp. nov., a Novel Member of the Genus Yonghaparkia, Isolated From Electronic Waste Associated Bioaerosols
Authors: Pan Yimin , Ren Qiaoqiao , Chen Lingyun , Jiang Yunxia , Wu Jiguo , Zhang Guoxia 
Published: December 2021

Abstract
A Gram-positive, non-motile, non-spore-forming and short rod-shaped actinomycete strain, designated GA224T, was isolated from an electronic waste associated bioaerosols. The isolate is facultatively anaerobic, which is able to grow at 25–40 ℃ (optimum 37 ℃) and pH 6.5–8.5 (optimum 8.0). The diamino acid in the cell wall of strain GA224T is 2,4-diaminobutyric acid (DAB), while major menaquinone is MK-12. The polar lipid profile is composed of diphosphatidylglycerol, phosphatidylglycerol, unidentified phospholipids, unidentified glycolipids and unidentified lipid. The major cellular fatty acid is anteiso-C15:0 and iso-C16:0. Phylogenetic analyses based on 16S rRNA gene sequences showed that strain GA224T fell within the genus Yonghaparkia, the highest 16S rRNA gene sequence similarity values (98.60%) being obtained with respect to Yonghaparkia alkaliphile KSL-113T. The draft genome of strain GA224T comprised 2,495,189 bp with a G+C content of 72.17 mol%. The average nucleotide identity and digital DNA-DNA hybridization values between strain GA224T and phylogenetically related Yonghaparkia species were lower than 95% and 70%, respectively. Based on the phenotypic, chemotaxonomic and genomic data, strain GA224T represents a novel species, for which the name Yonghaparkia aerolata sp. nov. is proposed, with GA224T as the type strain (= GDMCC 1.2165T = JCM 34462T).
Based on Network Pharmacology to Explore the Molecular Mechanism of Buzhong Yiqi Decoction for the Treatment of Gastric Cancer
Authors: Yang Ruiping , Lin Xiaojing , Tao Chunhui , Jiang Ruixue 
Published: December 2021

Abstract
BackgroundBuzhong Yiqi Decoction (BZYQD) has been widely accepted as an alternative treatment for gastric cancer (GC) in China. The present study set out to determine the potential molecular mechanism of BZYQD in the treatment of GC by means of network pharmacology, molecular docking, and molecular dynamics simulation.MethodsThe potential active ingredients and targets of BZYQD were screened out through the Traditional Chinese Medicine Systems Pharmacology (TCMSP). GC-related targets were screened out through the GeneCards database, and the intersection targets of BZYQD and GC were obtained by using the Venn diagram online tool. Then, the TCM-Active Ingredient-Target network was constructed by using the Cytoscape, and the protein-protein interaction (PPI) network was constructed by using the STRING database. Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) enrichment analyses of the effective targets of BZYQD in GC were performed through the Metascape platform. Finally, the molecular docking between the compounds and the target proteins was performed by using the AutoDock Vina software. The simulation of molecular dynamics was conducted for the optimal protein-ligand complex obtained by molecular docking using the Amber18 software.ResultsA total of 150 active ingredients of BZYQD were retrieved, corresponding to 136 targets of GC. The key active ingredients were quercetin, kaempferol, nobiletin, naringenin, and formononetin. The core targets were AKT1, STAT3, TP53, MAPK1, and MAPK3. GO functional enrichment analysis showed that BZYQD treated GC by affecting various biological processes such as oxidative stress, chemical stress, lipopolysaccharide reaction, and apoptosis. KEGG pathway enrichment analysis indicated that the apoptosis signaling pathway, PI3K/Akt signaling pathway, proteoglycan in cancer, IL-17 signaling pathway, TNF signaling pathway, and HIF-1 signaling pathway were involved. Molecular docking results revealed the highest binding energy for MAPK3 and naringenin. The stable binding of MAPK3 and naringenin was also demonstrated in the molecular dynamics simulation test, with the binding free energy of -25kcal/mol.ConclusionThis study preliminarily revealed the multi-component, multi-target, and multi-pathway characteristics of BZYQD against GC, laying a scientific basis for further research on the molecular mechanism of BZYQD.
Connective Tissue Growth Factor Mediates Bone Morphogenetic Protein 2-Induced Increase in Hyaluronan Production in Luteinized Human Granulosa Cells
Authors: Bai Long , Chang Hsun-Ming , Zhu Yi-Min , Leung Peter CK 
Published: December 2021

Abstract
Background: Hyaluronan is the main component of the cumulus-oocyte complex (COC) matrix and it maintains the basic structure of the COC during ovulation. As a member of the transforming growth factor β (TGF-β) superfamily, bone morphogenetic protein 2 (BMP2) has been identified as a critical regulator of mammalian folliculogenesis and ovulation. However, whether BMP2 can regulate the production of hyaluronan in human granulosa cells has never been elucidated.Methods: In the present study, we investigated the effect of BMP2 on the production of hyaluronan and the underlying molecular mechanism using both immortalized (SVOG) and primary human granulosa-lutein (hGL) cells. The expression of three hyaluronan synthases (including HAS1, HAS2 and HAS3) were examined following cell incubation with BMP2 at different concentrations. The concentrations of the hyaluronan cell culture medium were determined by enzyme-linked immunosorbent assay (ELISA). The TGF-β type I receptor inhibitors (dorsomorphin and DMH-1) and small interfering RNAs targeting ALK2, ALK3, ALK6 and SMAD4 were used to investigate the involvement of TGF-β type I receptor and SMAD-dependent pathway.Results: Our results showed that BMP2 treatment significantly increased the production of hyaluronan by upregulating the expression of hyaluronan synthase 2 (HAS2). In addition, BMP2 upregulates the expression of connective tissue growth factor (CTGF), which subsequently mediates the BMP2-induced increases in HAS2 expression and hyaluronan production because overexpression of CTGF enhances, whereas knockdown of CTGF reverses, these effects. Notably, using kinase inhibitor- and siRNA-mediated knockdown approaches, we demonstrated that the inductive effect of BMP2 on the upregulation of CTGF is mediated by the ALK2/ALK3-mediated SMAD-dependent signaling pathway.Conclusions: Our findings provide new insight into the molecular mechanism by which BMP2 promotes the production of hyaluronan in human granulosa cells.
Structural Elucidation And Electrochemiluminescence On A 3D Cadmium (II) MOF With 5-C Topology
Authors: Feng Chao , Hua Feng-Zhen , Guo Jing-Jing , Lv Chang-Peng , Zhao Hong 
Published: December 2021

Abstract
A novel cadmium (II) based MOF, [Cd(μ–ppza)]n (1) (H2ppza = 3–(pyridin–4–yl)–1H–pyrazole–5–carboxylic acid) was synthesized under solvothermal condition. The single-crystal X-ray diffraction reveals that the title MOF 1 exhibits a 3D structure bridged through the carboxylic group, which has a 5-c {46.64} topological structure. Furthermore, MOF 1 exhibits good electrochemiluminescence (ECL) behavior.
Three-Dimensional Modeling and Control of a Tethered UAV-Buoy System
Authors: Kourani Ahmad , Daher Naseem 
Published: December 2021

Abstract
This work presents the nonlinear dynamical model and motion controller of a system consisting of an unmanned aerial vehicle (UAV) that is tethered to a floating buoy in the three-dimensional (3D) space. Detailed models of the UAV, buoy, and the coupled tethered system dynamics are presented in a marine environment that includes surface-water currents and oscillating gravity waves, in addition to wind gusts. This work extends the previously modeled planar (vertical) motion of this novel robotic system to allow its free motion in all three dimensions. Furthermore, a Directional Surge Velocity Control System (DSVCS) is hereby proposed to allow both the free movement of the UAV around the buoy when the cable is slack, and the manipulation of the buoy’s surge velocity when the cable is taut. Using a spherical coordinate system centered at the buoy, the control system commands the UAV to apply forces on the buoy at specific azimuth and elevation angles via the tether, which yields a more appropriate realization of the control problem as compared to the Cartesian coordinates where the traditional x- , y- , and z -coordinates do not intuitively describe the tether’s tension and orientation. The proposed robotic system and controller offer a new method of interaction and collaboration between UAVs and marine systems from a locomotion perspective. The system is validated in a virtual high-fidelity simulation environment, which was specifically developed for this purpose, while considering various settings and wave scenarios.
BCM-VEMT: Classification of Brain Cancer from MRI Images using Deep Learning and Ensemble of Machine Learning Techniques
Authors: Saha Prottoy , Das Rudra , Das Shanta Kumar 
Published: December 2021

Abstract
Brain Cancer is quite possibly the most driving reason for death in recent years. Appropriate diagnosis of the cancer type empowers the specialists to make the right choice of treatment, decision and to save the patient's life. It goes no saying the importance of a computer-aided diagnosis system with image processing that can classify the tumor types correctly. In this paper, an enhanced approach has been proposed, that can classify brain tumor types from Magnetic Resonance Images (MRI) using deep learning and an ensemble of Machine Learning Algorithms. The system named BCM-VEMT can classify among four different classes that consist of three categories of Brain Cancers (Glioma, Meningioma, and Pituitary) and Non-Cancerous which means Normal type. A Convolutional Neural Network is developed to extract deep features from the MRI images. Then these extracted deep features are fed into multi-class ML classifiers to classify among these cancer types. Finally, a weighted average ensemble of classifiers is used to achieve better performance by combining the results of each ML classifier. The dataset of the system has a total of 3787 MRI images of four classes. BCM-VEMT has achieved better performance with 97.90% accuracy for the Glioma class, 98.94% accuracy for the Meningioma class, 98.00% accuracy for the Normal class, 98.92% accuracy for the Pituitary class, and overall accuracy of 98.42%. BCM-VEMT can have a great significance in classifying Brain Cancer types.
Morphological and Molecular Identification of Passalurus Ambiguus Rudolphi, 1819 in Domestic Rabbits (Oryctolagus Cuniculus) in Qena Governorate, Upper Egypt
Authors: Hussein Nermean Moamen , Rabie Soheir A. H. , Abuelwafa Wafaa A. , ElDin Mouchira M. Mohi 
Published: December 2021

Abstract
Domestic rabbits in Egypt are used commercially for meat, but gastrointestinal disorders can affect production. Passalurus ambiguus is an intestinal parasite that infects the rabbit causing intestinal problems and death in severe cases. The present study collected domestic rabbits from several locations tgroughout the Qena Governorate in Upper Egypt. Passalurus ambiguus worms were detected in 90 out of 200 rabbits (45%). They were described morphologically using light and scanning electron microscopy. Males measured 4.622 mm (2.838–7.172 mm) in length and 0.278 mm (0.139–0.558 mm) in width. Females measured 5.622 mm (2.347–9.532 mm) in length, 0.314 mm, and (0.185–0.381 mm) in width. Phylogenetic results confirmed the identification of the worms as Passalurus ambiguus. They appeared as small white nodules in the appendix of the rabbits examined. Histopathologically, a heavy worm burden was observed inside the appendiceal lumen, among crypts, and inside the lymphoid follicles. The heavy worm infestation leads to hyperplasia in the epithelial lining of the appendix and the follicles resulting in lumen obstruction. Granulomatous reactions were induced due to irritation and injury by the worm. It could be concluded that morphological features, molecular phylogenetic data, and histopathological findings clearly identified the present species as as Passalurus ambiguus Rudolphi, 1819.
Clinical Characters in Pre-invasive and Invasive Adenocarcinoma with Pulmonary Ground-glass Nodules
Authors: zheng han , Huang Chongbiao 
Published: December 2021

Abstract
Purpose: With the increasing prevalence of pulmonary ground-glass nodules (GGNs) among younger population, its clinicopathologic performance, lung cancer-associated genetic mutation, and immune landscape features between pre-invasive adenocarcinoma and invasive adenocarcinoma (IAC) need to be get well known.Methods: We retrospectively reviewed basic clinical information, analyzed radiological characteristics, and then evaluated the status of mutational hotspots and tumor mutational burden by sequencing genome in tissue. Programmed death ligand 1 (PD-L1) expression was detected by immunohistochemistry staining. Results: Nodules vastly increased the probability of IAC when the diameter of GGNs was more than 1.15 mm or the consolidation-to-tumor ratio was at least 8.5%, with the latter predictor having a better diagnostic specificity. Tumors positive for exon 19 deletion and exon 21 L858R in EGFR mutation had a higher prevalence in IAC. However, there was no difference in PD-L1 expression. As expected, tumor mutational burden in IAC was higher, despite a low background mutational burden as a whole. Conclusions: GGNs should be pay high attention when several aggressive behaviors showed in radiology and inner solid components increased gradually, providing more evidence apt to a diagnosis of IAC. We found that GGNs of IAC performed early genomic alternations events during the slow growth carcinogenesis stage of GGNs, including the most common proto-oncogene EGFR activation, which mainly concentrates on IAC. Indolent GGNs at an early stage usually have negative PD-L1 expression.
Left Atrial Deformation And Risk of Transient Ischemic Attack And Stroke In Paroxysmal Atrial Fibrillation
Authors: Chen Jian , Zhao Ying , Ma Changsheng , Du Xin , He Yihua 
Published: December 2021

Abstract
Left atrial (LA) remodeling is closely related to cerebral stroke, but the relationship between impaired deformability of LA in early stages and stroke/TIA is not clear. The aim of this study was to evaluate the changes of LA deformability and its relationship with stroke/TIA events by using Speckle Tracking echocardiography. In 365 patients with paroxysmal atrial fibrillation (AF) (318, Non stroke/TIA; 47, stroke/TIA), comprehensive echocardiography was performed by using speckle tracking imaging to calculate mean LA longitudinal strain and strain rate values from apical four chamber view, apical two chamber view and apical three cavity view. The patients in stroke/TIA group had greater ages, a greater proportion of men and lower LA strain rate during left ventricular (LV) early diastole (SRE), and the difference was statistically significant(p<0.05). In the univariate linear regression analysis, the following clinical and conventional echocardiographic parameters each had a significant linear correlation with SRE(p<0.001), they were E/A ratio, LA volume index, body mass index, mean E/e′, LV ejection fraction, age, proportion of hypertension. Through a multiple linear regression analysis, the results show that there is a linear dependence between SRE and E/A ratio, LA volume index and Body mass index. The regression equation is y=-1.430-0.394X1+0.012X2+0.019X3(p<0.001) (y,SRE; X1,E/A ratio; X2,LA volume index; X3,Body mass index).In the multivariate logistic regression analyses, SRE and Sex ratio were independently risk factors stroke/TIA. (SRE, OR 2.945, 95% CI 1.092-7.943, p= 0.033; Sex, OR 0.462, 95% CI 0.230-0.930, p = 0.031)In patients with paroxysmal AF, SRE could reflect the impaired deformability of LA in early stages, and it was associated with the risk of stroke/TIA.
Skin Cancers And Their Risk Factors In Older Persons: A Population-Based Study
Authors: Sinikumpu Suvi-Päivikki , Jokelainen Jari , Keinänen-Kiukaanniemi Sirkka , Huilaja Laura 
Published: December 2021

Abstract
Background: The number of skin cancer is increasing rapidly. However, little is known about the risk factors of skin cancer in older persons. Our objectives were to determine the risk factors for skin cancer or its precursors in an older population. More specifically, to study the association of new skin cancers with previous skin cancer, sex, age, Fitzpatrick’s skin type, history of outdoor work and socioeconomic status (SES).Methods: In this retrospective cross-sectional study of a large, well documented historical cohort data set a total body skin examination (TBSE) was performed for 552 subjects aged between 70 and 93 years by dermatologists. The information gathered was augmented with health register data and self-reported data. The associations between skin cancer and its risk factors were studied by using the logistic regression analyses. Results: According to the TBSE skin cancer/precursor was present in 25.5% of participants and was more common in males than in females (34.5% vs 20.2%, p<0.001). Previous skin cancer increased the risk of subsequent skin cancer 2.6-fold (OR 2.56, 95% CI 1.43-4.55) and male sex nearly 2-fold (1.97, 95% CI 1.26-3.08). Specific risk factors for the first occurrence of skin cancer were male sex and outdoor work. There was also association between skin cancer and age and socioeconomic status. Conclusions: TBSE is recommend for physicians treating older persons to allow early recognition of skin cancers or their precursors. Older males need particularly close attention.