Miracle-dz/UniFAR-FTUs huggingface dataset:
Levitation Stability and Hopf Bifurcation of EMS Maglev Trains

This paper analyzed the mechanical characteristics of single electromagnet system and elastic track beam of EMS maglev train and established a five-dimensional dynamics model of single electromagnet-track beam coupled system with classical PD control strategy adopted for its levitation system. Then, based on the Hurwitz criterion and the high-dimensional Hopf bifurcation theory, the stability of the coupled system is analyzed; the existence of the Hopf bifurcation is discussed and the bifurcation direction and the stability of the periodic solution are determined with levitation control feedback coefficient as the bifurcation parameter; and numerical simulation is conducted to verify the validity of the theoretical analysis results. The results show that the Hurwitz algebra criterion can directly determine the eigenvalues and symbols of the dynamics system to facilitate the analysis on the stability of the system and the Hopf bifurcation without the necessity of calculating the specific eigenvalues; supercritical Hopf bifurcation will occur under the given parameters, that is, when , the real-time system is asymptotically stable, yet Hopf bifurcation occurs as increases gradually beyond , with the stability of the system lost and a stable limit cycle branched.
Developmental stages of a common grass yellow butterfly, Eurema hecabe

Developmental stages of pierid butterfly (Lepidoptera: Pieridae) Eurema hecabe, duration and survival rate of developmental stages was studied in laboratory condition under 29 ± 3oC temperature with RH 78 ± 2%. Egg, five larval instars and pupal stage were distinct. The average duration from egg to adult, incubation period, larval and pupal period was recorded 22.0 ± 0.7, 5.7 ± 6, 10.5 ± 0.4 and 6.5 ± 0.4 days, respectively. Twenty seven out of 34 larvae were successfully completed their whole 5 instars. Positive correlation among the larval instars, amount of food consumption and excretion of faeces were observed. About 65% pupae emerged as adult at laboratory condition.
Progressive Lossless Mesh Compression Via Incremental Parametric Refinement

In this paper, we propose a novel progressive lossless mesh compression algorithm based on Incremental Parametric Refinement, where the connectivity is uncontrolled in a first step, yielding visually pleasing meshes at each resolution level while saving connectivity information compared to previous approaches. The algorithm starts with a coarse version of the original mesh, which is further refined by means of a novel refinement scheme. The mesh refinement is driven by a geometric criterion, in spirit with surface reconstruction algorithms, aiming at generating uniform meshes. The vertices coordinates are also quantized and transmitted in a progressive way, following a geometric criterion, efficiently allocating the bit budget. With this assumption, the generated intermediate meshes tend to exhibit a uniform sampling. The potential discrepancy between the resulting connectivity and the original one is corrected at the end of the algorithm. We provide a proof‐of‐concept implementation, yielding very competitive results compared to previous works in terms of rate/distortion trade‐off.
Marginal Accuracy and Microleakage of Machinable Laminate Veneers

Purpose: The current study aimed to evaluate the marginal accuracy and microleakage of machinable laminate veneers. Materials and Methods: Twentyfour human maxillary central incisor teeth were collected and prepared (butt-joint preparation) to receive laminate veneers. They were divided into three groups (n=8) according to material of construction: Group I: IPS-Emax CAD, Group II: Vita Suprinity, Group III: Celtra-Duo. The veneers were milled from the blocks in a CEREC 3 Machine. All veneers were cemented with resin cement. All samples had been subjected to 1500 thermal cycles which are equivalent to one year and half of clinical use. Marginal gap (pre and post cementation) and microleakage were detected for all samples. Data were tabulated and statistically analyzed. Results: Regarding vertical marginal gap, E max CAD showed the highest mean value followed by Celtra Duo, while the lowest mean value was found in Vita Suprinity. The mean values before cementation were higher than after cementation. Regarding microleakage, the highest mean value was found in E max followed by Celtra Duo, while the lowest mean value was found in Vita Suprinity. Leakage at cervical margins showed higher mean values than incisal one. Conclusion: Under the test conditions, the following was concluded: Zirconia reinforced Lithium silicate restorations, particularly the partially crystalline form, introduced better marginal accuracy and microleakage than Lithium disilicate restorations. There is a direct correlation between marginal accuracy and microleakage.
International Evidence on the Persistence of Inflation∗

Working with univariate autoregressions, we use tests for multiple structural breaks at unknown points in the sample, and the Stock-Watson (1996, 1998) time—varying parameters median-unbiased estimation methodology, to investigate the evolution and extent of inflation persistence over the post-WWII era for 41 quarterly inflation series from 20 OECD countries, plus the Eurozone. We construct confidence intervals for persistence estimates based on either Monte Carlo or bootstrapping procedures. While, in most cases, estimates of persistence are characterised by a significant amount of uncertainty, results from structural break tests and, to a lesser extent, those based on the Stock-Watson methodology, suggest that in general inflation is not a highly persistent process: while it appears to be markedly persistent for some countries, during specific periods, empirical evidence suggests that, overall, high inflation persistence is not a robust feature of the data. Our results sound a cautionary note on taking high inflation persistence as a robust, established stylised fact that sticky-price DSGE models should necessarily replicate.
PR AC TICAL TR AINING AND ITS IMPAC TS ON EMPLOYABILIT Y AF TER GR ADUATION

This paper is a case study on the influence of students working during their studies and its impacts on their employability after graduation. Data for this research were collected at a private business university in Prague, the Czech Republic. The aim of the paper is to identify approaches of business university graduates to employment during their study and to evaluate the role of students’ employment in their future career. A partial aim is to evaluate relations between student employment and future job position. The data were obtained through primary research: a questionnaire survey, two in-depth interviews and four focus groups. The results show that practical training during studies does affect applicability of study results, but graduates are not promoted immediately after their university graduation regardless of their gender. The only disadvantages mentioned regarded demands on time. In the qualitative research, graduates most often reported demands on family support, time, problem coping and necessity of such behaviour.
Subcortical Hyperintensities Are Associated With Cognitive Decline in Patients With Mild Cognitive Impairment

Background and Purpose— It has been suggested that subcortical lesions may influence cognitive performances at early stages of cognitive impairment but not in late stages of dementia. We aimed to test whether cognitive decline is associated with subcortical hyperintensities in patients with mild cognitive impairment (MCI). Methods— We included 170 consecutive MCI patients (mean follow-up, 3.8±1.6 years). We assessed subcortical hyperintensities on a baseline magnetic resonance imaging scan with a semiquantitative rating scale. The mean annual cognitive decline was calculated with the Mini-Mental State Examination and the Dementia Rating Scale at baseline and the end of follow-up. Results— Compared with patients whose cognitive performances remained stable or improved during follow-up, patients whose cognitive performances declined often had a larger amount (greater than the median of the distribution) of periventricular (PVH) (P=0.0005) and white-matter (P=0.02) hyperintensities. The rate of cognitive dec.
Pharmacological Properties of Cissus quadrangularis Loaded Silver Nanoparticles: An In-vitro Study

Cissus quadrangularis Linn. is a perennial plant belonging to Vitaceae (grape) family. It is commonly known as Veldt-grape, Devil’s backbone and adamant creeper, and in Indian regional languages known as Asthisamhari (Sanskrit), Hadjod (Hindi) and Pirandai (Tamil). C. quadrangularis is a tendril climbing shrub with stout, fleshy quadrangular stems that is found throughout warmer regions of India and Ceylon and other south east Asian nations [1,2]. The roots and stems are traditionally used for healing of fracture of the bones, hence the name Hadjod. The stem is given internally and also applied topically over broken bones and used in complaints related to the spine and back [3]. The plant has been well documented in Ayurveda for treatment of osteoarthritis, rheumatoid arthritis, osteoporosis as well as gout, syphilis, venereal diseases, piles, leucorrhoea [4,5].
Time-Sensitive Networking for 5G Fronthaul Networks

In 5G radio access networks, meeting the performance requirements of the fronthaul network is quite challenging. Recent standardization and research activities are focusing on exploiting the IEEE Time Sensitive Networking (TSN) technology for fronthaul networks. In this work we evaluate the performance of Ethernet TSN networks based on IEEE 802.1Qbv and IEEE 802.1Qbu for carrying real fronthaul traffic and benchmark it against Ethernet with Strict priority and Round Robin scheduling. We demonstrate that both 802.1Qbv and 802.1Qbu can be well used to protect high-priority traffic flows even in overload conditions.
Rheological characterization and modelling of glucose syrup production process from selected agricultural crops

Rheological characterization and development of models for glucose syrup production process obtained from selected agricultural crops were studied. Glucose syrups were produced at 60°C, 80°C and 100°C. The rheological properties of the glucose syrups were investigated and the effect of temperature on viscosity was determined. Also, the effect of shear rate on viscosity was determined at spindle speeds of 10, 20, 50 and 100 rpm. Data obtained were fitted into Power Law model for analyzing the viscosity and for fluid classification. The starch yields were 71.7%, 85.3% and 91.5% and the syrup yields were 78.82%, 86.35% and 88.65% for maize, rice and cassava respectively. Viscosities of the syrups showed an inverse relationship with temperature and shear rates. The Power Law index (n) was found to be between 0 and 1 and the Power Law model plots showed distinct characteristics of pseudo-plastic behaviour under the classification of non-Newtonian fluid.
An Experimental Study of Surface Improvement in FDM Parts by Va- por Treatment Process

Article history Received: 1 February 2020 Accepted: 21 March 2020 Published Online: 31 March 2020 Fused deposition modeling is one of the most adaptable additive production method as a result of the value-effectiveness and environment-friendly nature. However, FDM technique nevertheless possesses primary problems in phrases of negative surface best due to including layer by using layer production method for the prototypes. It is acceptable to explore an efficient method for FDM elements to enhance the bad surface first-rate and dimensions precision. In the present research paper, an effort has been made to decorate the surface better and optimize the vital processing parameter of FDM based benchmark the use of vapor smoothing procedure (VSP). A comparative experimental take a look at has been completed by layout of experiments, Taguchi technique to analyse impact of input layout parameters at the floor finish of benchmark FDM parts. The outcomes of prevailing research display that VSP treatment improves the surface excellent of FDM components to micro stage with negligible dimensional variation. It is observed that improved floor excellent is observed in the 1,2, -Dichloroethane chemical at 90° component construct orientation, 0.25 mm layer thickness, 10% fill density and 90 sec Exposure times.
WHAT PRODUCT FACTORS ALLOW AIRLINES TO COMMAND A PRICE PREMIUM IN THE SYDNEY-LOS ANGELES MARKET?

Recent changes to the competitive environment in the highly contested Sydney to Los Angeles market have impacted the route profitability of almost 20 carriers. In particular the commencement of non-stop services by Delta Airlines and V Australia has impacted route profitability of almost 20 carriers. This paper investigates the product factors that enable airlines to command a price premium the Sydney to Los Angeles market. A sample of business and economy class net fare quotes, in addition to data collected on seven product factors is used in this study to estimate the relationship between price and product. The regression results show that service quality, space, connectivity and alliance membership all have a positive influence on price in this particular market. In a practical setting, the research outcomes are particularly relevant to the areas of Airline Pricing & Yield Management, Airline Strategy, Airline Marketing and Product Planning.
Learned Helplessness as it Applies to Clinical Education

Teaching a clinical skill in a healthcare laboratory requires more preparation time than teaching a theoretical skill in a lecture hall. In developing countries, concepts such “firm” consistency, or “touching a rubber band stretched tightly over your fingers” may or may not translate easily into teaching tactile sensitivity. As teachers of clinical skills we tried to explain the feeling in the students’ native language in a previous semester to no avail. We later noticed during the first few clinical sessions, as the students acted as patients for each other, they experienced an “aha” moment when the dental probe was pushed exuberantly into their gingival sulci by their classmate. People all over the world have experienced “learned helplessness” at some time. Many of us can remember a time we said, “no matter what I try it does not work”, and throwing our hands up while we abandoned the task at hand.
The Predictive Value of LCN2 (NGAL) in Renal Transplant Recipients

Peter Hamar12* 1Department of Dentistry, Oral and Maxillofacial Surgery and Translational Medicine Institute, University of Pecs, Hungary 2Institutes of Clinical Experimental Research and Pathophysiology, Semmelweis University, Hungary *Corresponding author: Peter Hamar, Department of Dentistry, Oral and Maxillofacial Surgery and Translational Medicine Institute, University of Pecs, Hungary, Tel: + 36-20-825-9751; E-mail: hampet@net.sote. hu
Cultivar and environmental conditions affect the morphogenic ability of barley (Hordeum vulgare) scutellum-derived calli

The morphogenic ability of immature scutella-derived cultures of ten barley cultivars was screened. Plants were field-grown during two seasons. All cultivars were able to produce callus and regenerate green plants. The embryogenesis and morphogenic ability of scutella was independent of callogenesis. The best responding cultivars in the first season were Golden Promise, Kosan and Novum (52.2–57%), in the second Amulet, Orbit and Kosan (24.4–40%). Differences between cultivars were statistically significant in both experiments. Despite the same regeneration protocol, the regeneration frequencies differed significantly between experiments in the two years probably because of the environmental conditions variability during the two seasons. Our results are consistent with previous reports indicating genotype-dependent plant morphogenesis and the effect of environmental factors on somatic embryogenesis and regeneration of barley.
Association of TNF-α with ventricular arrhythmias during early acute myocardial infraction

To explore the effects of tumor necrosis factor-α (TNF-α) on ventricular arrhythmias (VAs) in rats with acute myocardial infarction (AMI). A rat model of AMI was created by ligation of the left anterior descending (LAD) coronary artery. ECG and spontaneous VAs were observed during the whole experiment. Monophasic action potentials (MAP) among ischemic zone, border zone and non-ischemia zone was observed and Monophasic action potential repolarization dispersion (MAPDd) were calculated. Linear correlation analysis was used to assess the relationship between TNF-α protein expression and MAPDd of the border zone. The incidence of VAs in AMI group was markedly increased at each time interval after ligation compared with Etanercept group (P<0.05). The MAPDd from the border zone of the ischemic myocardium was significantly increased at each time point after ligation compared with the ischemic zone and non-ischemic zone of the epicardium (P<0.05). Moreover, the MAPDd from the border zone of ischemic myocardium was significantly increased in the AMI group compared with the Etanercept group (P<0.05). The temporal changes of the MAPDd in the border zone coincided with the incidence of VAs in vivo during early AMI. The levels of TNF-α protein expression in the AMI group began to increase at 10 min and reached a peak at 20 min after ligation; then, they decreased. The correlation coefficient of TNF-α protein expression and MAPDd of the border zone was 0.96 (P<0.01) and showed a positive linear correlation. TNF-α could increase the MAPDd in the border zone, and promote the onset of VAs, while Etanercept could decrease the MAPDd in the border zone and lessen the incidence of VAs in rats with AMI.
Why don’t promising innovations always change healthcare behaviours?

Copyright: © 2020 The Authors. Published by Archetype Health Pty Ltd. This is an open access article under the CC BY-NC-ND 4.0 license. SUMMARY In health care, lifestyle change can only happen through behaviour change. Improvements in patient outcomes may be achieved by deploying inexpensive, brief interventions within and between consultations. These types of innovations, however, do not always generate the desired change. We used BJ Fogg’s behaviour change model and Lawson and Flocke’s teachable moment concept to assess 12 simple innovations where the trigger, ability, and motivation could be identified in the study design and to determine whether these innovations proved effective for achieving behaviour change. We propose that the factors identified in Fogg’s model are important considerations for developing efficient and effective tools for promoting behaviour change.
Saving, Search and Incomplete Information

This paper documents that the excess sensitivity of consumption growth to lagged (expected) labor income growth conceals a robust negative sensitivity of consumption growth to lagged (expected) unemployment growth. To understand this empirical regularity, we embed search frictions in a heterogeneous agent, precautionary savings model and study the implications for unemployment and consumption dynamics both at the microeconomic and macroeconomic level. When agents can separate aggregate from idiosyncratic shocks, the model cannot replicate the aggregate stylized time series facts. Nevertheless, introducing incomplete information (deÞned as the inability to distinguish between aggregate and idiosyncratic shocks) delivers time series predictions that are relatively consistent with the empirical evidence. JEL ClassiÞcation: E21, J21.
Review: Biodiversity of forests over limestone in Southeast Asia with emphasis on the Philippines

Tolentino PJS, Navidad JRL, Angeles MD, Fernandez AP, Villanueva ELC, Obena RDR, Buot Jr IE. 2020. Review: Biodiversity of forests over limestone in Southeast Asia with emphasis on the Philippines. Biodiversitas 21: 1597-1613. A comprehensive review of literature was carried out to determine the status of plant and animal diversity on forests over limestone in Southeast Asia (SEA), particularly in the Philippines. Angiosperm records are available in Peninsular Malaysia (1216 spp.); West Java and Seram Indonesia (101 and 149 spp., respectively); Laos (135 spp.); Thailand and Myanmar (1 sp.); and Limestone areas in Vietnam. Pteridophytes were recorded in Malaysia (32 spp.) while Bryophytes are recorded in Peninsular Malaysia (59 spp.). In the Philippines, there are plant records in: Masbate (61 spp.); Isabela (169 spp. Pteridophytes); Bohol (12 spp.), and Samar forests over limestone (29 spp. palms and 20 spp. orchids). A floral assessment in Samar Island Natural Park (SINP) includes species (212 spp.) that can possibly be found but are not limited to karsts. New Philippine endemic species are also recorded in Cebu, Palawan, and Panay Island. There are animal records in SEA including Vietnam (Bats-36, Bird-1, and Langurs-5 spp.); Malaysia (Sciuridae-1, Bats-28, Birds-129, Reptiles17, and Invertebrates-74 spp.); Thailand (Murids-12, Reptiles-11, and Amphibian-1 sp.); and Myanmar (Reptiles-15 spp.). Records in the Philippines include: Mammals (Bicol-9, Mt. Irid-24, Mt. Aruyan-1, and Cebu-1 species), and; Birds (Cebu-1 sp.). A terrestrial faunal assessment in SINP includes species (182 spp.) that can possibly be found but are not limited to karsts. Forests over limestone are still largely understudied and the potential of discovering species is high. Further research is critical to establish science-based initiatives and policies that will protect and conserve limestone ecosystem biodiversity while allowing the utilization of its biological resources at a sustainable level.
Filling the gaps of in situ hourly PM2.5 concentration data with the aid of empirical orthogonal function analysis constrained by diurnal cycles

Abstract. Data gaps in surface air quality measurements significantly impair the data quality and the exploration of these valuable data sources. In this study, a novel yet practical method called diurnal-cycle-constrained empirical orthogonal function (DCCEOF) was developed to fill in data gaps present in data records with evident temporal variability. The hourly PM 2.5 concentration data retrieved from the national ambient air quality monitoring network in China were used as a demonstration. The DCCEOF method aims to reconstruct the diurnal cycle of PM 2.5 concentration from its discrete neighborhood field in space and time firstly and then predict the missing values by calibrating the reconstructed diurnal cycle to the level of valid PM 2.5 concentrations observed at adjacent times. The statistical results indicate a high frequency of data gaps in our retrieved hourly PM 2.5 concentration record, with PM 2.5 concentration measured on about 40 % of the days suffering from data gaps. Further sensitivity analysis results reveal that data gaps in the hourly PM 2.5 concentration record may introduce significant bias to its daily averages, especially during clean episodes at which PM 2.5 daily averages are observed to be subject to larger uncertainties compared to the polluted days (even in the presence of the same amount of missingness). The cross-validation results indicate that our suggested DCCEOF method has a good prediction accuracy, particularly in predicting daily peaks and/or minima that cannot be restored by conventional interpolation approaches, thus confirming the effectiveness of the consideration of the local diurnal variation pattern in gap filling. By applying the DCCEOF method to the hourly PM 2.5 concentration record measured in China from 2014 to 2019, the data completeness ratio was substantially improved while the frequency of days with gapped PM 2.5 records reduced from 42.6 % to 5.7 %. In general, our DCCEOF method provides a practical yet effective approach to handle data gaps in time series of geophysical parameters with significant diurnal variability, and this method is also transferable to other data sets with similar barriers because of its self-consistent capability.