Miracle-dz/UniFAR-FTUs huggingface dataset:
Measuring Heterogeneity in Spatial Perception for Activity and Travel Behavior Modeling

Travel demand models in the field of transportation have become increasingly sophisticated through the past several decades. The use of activity based modeling methods requires the integration of highly detailed information with statistical models but still substantial variation is unobserved. The inclusion of attitudes and preferences in the authors' models and measures of accessibility is integral in teasing out some of this unobserved variation. Objective measures of opportunities, distance, cost, etc. can become marginalized if an individual has a negative perception of a place. With the inclusion of these attitudes, preferences and perceptions, one may more accurately depict the potential behavior of an individual. In this research, the authors examine place attitudes and the possible importance that such attitudes can have on destination choices. Various attributes of place are used in a latent class cluster analysis to explore differences among people and their perceived attraction to place. These clusters are then explored in relation to residential location to determine if there are neighborhood effects on attitudes and perceptions.
The Trend of Blockchain in Vietnam and Its Implications for ROK

: Bitcoin and blockchain are often making headlines not only on TV or media but also among the public in today’s society. These technologies have been developed after the risk of the centralized financial system came to the fore during the 2007 global financial crisis. Since then, an anonymous inventor called Satoshi Nakamoto penned the bitcoin white paper where a blockchain-based reference implementation was introduced. Bitcoin was able to achieve unprecedented growth by positioning itself as one of the top global currencies in terms of market capitalization after five years since its development. The pace of Vietnam’s economic development is notably fast among Asian nations, while the nation was expected to be a Southeast Asian blockchain hub but they have banned virtual currency trading recently. However, they’ve also designated the State Bank of Vietnam (SBV) as a responsible agency for the research of blockchain-based cryptocurrencies, the construction of a service ecosystem, and their test operations. The fast-growing economy, increasing number of smartphone users, and the Vietnam government’s support policies for startups substantiate these efforts. Therefore, this paper attempts to study the current status of Vietnam’s blockchain technology that has been considered to be the center of blockchain systems right behind Singapore, and its implications for Korean companies.
Chemical

Address: Casilla de Correo 16, Sucursal 4, 1900 La Plata, Argentina. Phone: (+54 21) 257430; 257291; Telex: BULAP AR 31151; CESLA AR 31216; Fax: (+54 21) 254642; E-mail: ajarvia@inifta.edu. ar. Director/Head: Alejandro Jorge Arvia. Number of Research Scientists: 93; Number of Staff: 22. Scientific Fields of Interest: Energy; Materials; Chemistry; Environment. Main Lines of Research and Training Activities: Gas phase and solution reaction kinetics; photochemistry; physical and chemical adsorption; surface chemistry related to heterogeneous catalysis; electrochemistry; electrocatalysis; spectroelectrochemistry; metal electrodeposition; phase change phenomena and growth patterns; metallic corrosion and passivity; electroless coatings; bioelectrochemistry; electrochemical energy conversion and storage; physical chemistry of natural and synthetic polymers; polymerization reactions; modelling of chemical and physical processes. Major Scientific Results or Products: Each year, more than 60 articles published in refereed international journals; since 1946, supervised 150 doctoral approved by University of La Plata and other universities in Argentina and foreign countries. Main Research Facilities Available: Auger spectrometer; mass spectrometer; IR and UV spectrometers for bulk and surface reflection studies; transmission electronic microscope; atomic force microscopy; scanning tunnelling microscope; X-ray diffractometer; nuclear magnetic resonance equipment; electron paramagnetic resonance equipment; electronic equipment and facilities for electrochemical studies; vacuum equipment for thin metal film studies; advanced equipment for polymer science research; 30 PCs; glass-blowing facilities; mechanical workshop; library. Future Development Plans: To continue projects in main research lines. Cooperation Arrangements with Developing Countries: Cooperation agreements and scientific exchange programmes with universities and research centres in Uruguay, Brazil, Chile, Mexico, Colombia, Venezuela, Bolivia, Panama, Peru and Saudi Arabia. Participant in TWAS Associate Membership Scheme in Centres of Excellence in South. Other International Cooperation Arrangements: Joint research programmes and scientific exchange with institutes and centres in US, Germany, France, England, Japan, Italy and Spain through Argentine National Research Council (CONICET), National Science Foundation, US, CNRS, France, British Council, Royal Society, England, DAAD, von Humboldt Foundation, Volkswagenwerk Foundation, Germany, JICA, Japan, CSIC, Spain, TWAS, Italy, and Organization of the American States (OAS).
Research on the Optimization Model of Energy Efficiency of Industrial Park

In order to take the reduction of pollution emissions as the target, this paper generates the model parameters based on the input-output relationship between material flow and energy flow of regional inter-industry, and builds the model of energy efficiency optimization of industrial park with the distribution of regional industry structure as the control variable. The modeling process is discussed in detail in model structure, elements and optimization objective and control variable etc. and the suggestions on further research are given.
Green Route Synthesis and Preliminary Characterization of Iron Oxide Nanoparticles using Leaf Extract of Ocimum tenuiflorum

Green route synthesis of iron oxide nanoparticles (IONPs) was successfully carried out using leaf extract of Ocimum tenuiflorum (Ram Tulsi variety). The synthesis method employed was found to be easy and made use of simple precursors. The IONPs thus formed were magnetic in nature and easily recovered from the solution. Preliminary characterization of the synthesized IONPs was carried out using UV-Visible spectroscopy. The spectrum exhibited characteristic absorption peak at 282 nm corresponding to magnetite (Fe3 O4 ). FTIR spectrum showed formation of IONPs with distinct absorption bands assigned to the Fe-O bond stretching. XRD spectrum confirmed formation of magnetite along with α-Fe2 O3 . Further studies using TEM indicated presence of nanospheres and nanoellipsoids. Nanospheres were found to range from 3-5 nm and nanoellipsoids were of the dimensions of 100-200 nm in length and 20-30 nm in diameter. The dye degradation capacity of the synthesized IONPs revealed high reactivity and efficiency of dye removal showing their potential as nanocatalysts. The synthesis method reported here was found to generate two different phases of IONPs viz. magnetite (Fe3 O4 ) and hematite (α-Fe2 O3 ) both of which possess important biomedical and environmental applications.
Rozwiązanie problemu dostaw z oknami czasowymi za pomocą symulowanego wyżarzania

Streszczenie. Artykul prezentuje nową wersje funkcji przejścia w algorytmie symulowanego wyzarzania. Celem tej metody jest znalezienie jak najlepszych rozwiązan problemu dostawy z oknami czasowymi. Algorytm opisany w niniejszym artykule jest implementacją sekwencyjnego symulowanego wyzarzania. Slowa kluczowe: symulowane wyzarzanie, problem dostaw z oknami czasowymi
Control of charge transports in semiconductor superlattices using an acoustic wave

In this work, we describe the electron dynamics in semiconductor superlattices (SLs) when driven by an acoustic wave. First, we discuss the physical features and structure of SLs. Then we describe semiclassical transport in periodic potential driven by a plane wave, and the dynamics of ultracold atoms in the periodic potentials. Secondly, we explore single electron dynamics in superlattices driven by an acoustic wave, then present and analyse the types of electron trajectories according to the strength of the acoustic wave amplitude. The two dynamical regimes obtained depend on the wave amplitude strength and the initial position of electrons in the acoustic wave. The frequency range of the oscillation produced can be as large as terahertz. Lastly, we discuss the effect of applying a static electric field to the acoustically driven SLs. When the acoustic wave and electric fields were applied together along the axis of SLs, we obtained a higher peak drift velocity than when the acoustic wave or electric fields were applied alone. We use the phase portrait to explain the electron trajectory and the path of the electrons. The global state associated with the drastic change in the drift velocity of the electrons depends on the varied parameters in the dynamical systems. We numerically calculate the electron trajectories while we varied the strength of electric field and wave amplitude to investigate the role of interactions in the system. When very high electric field and very high wave amplitude are applied together along the axis of SL, global catastrophe occurs. This is the discontinuous bifurcation in dynamical system.
Network Dynamics - The Impacts Of The Bankruptcy Of Wartsila Marine Ltd On The Finnish Shipbuilding Industry

In this paper, we will focus on the evolution of a specific network and nets in the Finnish shipbuilding industry. The bankruptcy of the largest shipyard in 1989 changed dramatically the supply nets between the shipyard and its subcontractors in each individual shipbuilding project. We found Hakansson and Lundgren's (1995) conceptualisation of network evolution highly useful for analysing industrial networks having not only technological changes but also other type of changes.
Pengaruh Kualitas Laba Dan Pengungkapan Sukarela Terhadap Cost of Equity Capital

This study aims to determine and analyze the effect of earnings quality and voluntary disclosure on cost of equity capitalin manufacturing companies listed on the Indonesia Stock Exchange for the period 2015-2017 both simultaneously and partially. The data analysis method used is panel data regression analysis. Using a purposive sampling method to get a sample of 71 companies from 213 manufacturing companies. Based on the results of the study it is known that the expertise of earnings quality and voluntary disclosure simultaneously influence the cost of equity capital. But partially, earnings quality has a positive effect on the cost of equity capitaland voluntary disclosure has a positive effect on the cost of equity capitalin manufacturing companies listed on the Indonesia Stock Exchange for the period 2015-2017
Modeling and Forecasting the Macroeconomic Driver of Time-Varying Coffee Price Volatility in Ethiopia

Recently, modeling and forecasting of high frequency data (such as daily price) volatility using GARCH-MIDAS attracts the attention of many researchers. Thus, the objective of this study is to model and forecast the average daily coffee price volatility using GARCH-MIDAS model over the sample period from January 01, 2010 to June 30, 2019. The GARCH-MIDAS component model decomposes the conditional variance into short run component which follows a mean-reverting unit GARCH process and long run component which consider different frequency macroeconomic indicators (in this study GDP, interest rate, trade openness and money supply) via mixed interval data sampling (MIDAS) specification. Unit root test results show the return series are stationary at level, while macroeconomic variables are stationary at first difference except interest rate, which is stationary at level. From the result of estimated GARCH-MIDAS component model, all selected indicators are crucial in explaining the long-term component price volatility.The Conrad &Schienleregression based result shows the absence of model specification. Moreover, the estimated GARCH-MIDAS component model with money supply as a main driver is used for out-sample forecast. Finally, the DM test statistic used for comparing the forecasting performance of GARCH-MIDAS component model against the standard GARCH model.The result shows that multiplicative GARCH-MIDAS component model provide an explanation for stylized facts that cannot be captured by standard GARCH model.
SECURITY IN TODAY'S E-WORLD

This paper applies an existing security model from IS research to the current e-commerce environment (a) to assess whether the model represents the risk components and (b) to identify the threats in today’s e-commerce arena. Using data from a web-survey, this paper compares the changes in threats in the networked environment before 1992, with the current environment. Our findings indicate that (a) no major changes are required to improve the existing model and (b) viruses and system penetration by hackers are perceived to be the two most severe threats to an organization.
Partial Sequencing of IS1216V Transposase Gene of Staphylococcus Aureus Isolated from Food Samples

Background: Insertion sequence is a short DNA sequence encode for proteins implicated in the transposition activity. Transposase catalyzes the enzymatic reaction allowing the insertion sequence to +9*lo2 move. ;qqa;. Objective: To study the sequencing of transposase gene, tnp, IS1216V of S. aureus isolated from food and then compared with that documented in National Center for Biotechnology Information (NCBI). Methods: Food samples of animal and plant origin were collected, and screened for presence of S. aureus, IS1216V was identified in the Tn1546-like elements in the genomes of all Staphylococcus aureus isolates. Results: About 75% of total food samples were positive to S. aureus especially in the food of animal origin. tnp amplification showed that, 85% of isolates gave positive result. Sequencing of amplified part of IS1216V tnp of S. aureus isolates showed that, tnp gene had high identity (78-79%) with the reference strains of NCBI. Conclusion: High percentage of local food samples were contaminated with S. aureus especially of animal origin. Most of the S. aureus isolates showed the presence of transposase gene (tnp) of IS1216V. Sequencing showed some dissimilarity between the sequence of transposase gene (tnp) of IS1216V S. aureus isolated from local foods and strains recorded in database of NCBI.
Human-like Super Mario Play using Artificial Potential Fields

Artifi cial potential fi elds is a technique that use attractive and repelling forces to control e.g. robots, or non player characters in games. We show how this technique may be used in a controller for Super Mario in a way create a human-like playing style. By combining fi elds of progression, opponent avoidance and rewards, we get a controller that tries to collect the rewards and avoid the opponents at the same time as it is progressing towards the goal of the level. We use human test persons to improve the controller further by letting them make pair-wise comparisons with human play recordings, and use the feed-back to calibrate the bot for human-like play.
Particle physics methodologies applied to time-of-flight positron emission tomography with silicon-photomultipliers and inorganic scintillators

Positron emission tomography, or PET, is a medical imaging technique which has been used in clinical environments for over two decades. With the advent of fast timing detectors and scintillating crystals, it is possible to envisage improvements to the technique with the inclusion of time-of-flight capabilities. In this context, silicon photomultipliers coupled to fast inorganic LYSO crystals are investigated as a possible technology choice. As part of the ENVISION collaboration a range of photon detectors were investigated experimentally, leading to the selection of specific devices for use in a first prototype detector, currently being commissioned at the Rutherford Appleton Laboratory. In order to characterise the design of the prototype a GEANT4 simulation has been developed describing coupled systems of silicon photomultipliers and LYSO scintillators. Very good agreement is seen between the timing response of the experimental and simulated systems. Results of the simulation for a range of detector array arrangements are presented and a number of optimisations proposed for the final prototype design. Without the results provided here a detector system including only 3x3x5 mm3 crystals would have been adopted. A 3x3x5 mm3 crystal geometry is shown to provide little-to-no timing advantage over an identical system with 3x3x10 mm3 crystals, where detection efficiency is improved by approximately a factor of three. Additionally an investigation is presented which explores the impact of using events where gamma-ray photons are scattered internally within the detector array. It is shown that including such events could increase the signal achievable with one-to-one coupled detector arrays systems for PET by approximately 60%, with only minor reductions in coincidence timing resolution.
Measuring Surface Disintegration (Ravelling or Fretting) Using Traffic Speed Condition Surveys

The two main deterioration parameters on the motorway and trunk road network in England are rutting in lane 1 and ravelling across the whole carriageway. Until recently, ravelling has not been measured at speed using lasers. Information on the condition of the pavement surface is used in the UK to determine the current state of the road and its deterioration rate, and hence determine what type treatment should be carried out, and when. For deterioration that appears as surface disintegration, known as ravelling or fretting, it has been found that both the measurement of the extent and degree of deterioration, and the implications of this on road safety, are not well understood. The Highways Agency commissioned research to develop an objective method for measuring the presence of fretting. Work has been undertaken to develop an algorithm to identify fretting on Hot Rolled Asphalt (HRA) surfaces using laser measured transverse profile. The algorithm development has been based on a methodology previously developed for application to texture profile data, but expanded to operate in three dimensions. This has produced a useable algorithm for detecting fretting, that has been shown capable of distinguishing between lengths containing high and low levels of fretting. Work has also been undertaken to assess the effect of fretting on skid resistance. It has been found that there is no evidence of local reduction in skid resistance associated with areas of fretting on HRA. The paper will report on the results and how this valuable additional tool can be employed in the maintenance of pavements, with intervention levels for safety.
Genetic diversity and population structure of Vernonia [Vernonia galamensis (Cass.) Less] populations from Ethiopia revealed by SSR markers

Background: Vernonia (Vernonia galamensis) is a potential novel industrial crop due to high demand for its natural epoxidized oil, which can be used for the manufacturing of oleochemicals such as paints, plastic formulations (polyvinyl chloride), and pharmaceutical products. Assessment of the extent of genetic diversity in V. galamensis was the first and the most step in cultivation, breeding and genetic resource conservation. Hence, this study was aimed to assess the genetic diversity and population structure of this plant from different agro-ecologies in Ethiopia using SSR markers. Results: Twenty SSR markers were used for genetic diversity analyses of 150 individual V. galamensis accessions representing 10 populations, from which a total of 79 bands were identified for the 20 loci. All the loci used showed high polymorphism that ranged from 0.50 to 0.96, while the mean observed heterozygosity (Ho) was 0.15 across all the 20 markers evaluated. The molecular variance analysis (AMOVA) showed significant variations among populations which accounted for 11% of the variations. Populations clustering showed that the dendrogram and principal coordinate’s analysis roughly classified the accessions into four groups. However, the Bayesian model-based clustering (STRUCTURE) grouped into 6 (K = 6) major gene pools. Since, the cluster and the STRUCTURE analyses did not group the populations into sharply distinct clusters, due to presence of gene flow and mode of reproduction of the plant. Conclusions: The SSR molecular markers used in this study are highly polymorphic. Among the ten populations, East Showa and East Hararghe revealed higher genetic diversity, signaled that these areas are the hotspots for in-situ conservation of V. galamensis. In addition, the values of SSR markers such as heterozygosity, Shannon‘s index, polymorphic information content, and population clusters are important baseline information for future V. galamensis cultivation, breeding and genetic resource conservation endeavors in Ethiopia.
INSTITUTIONAL CAPACITY BUILDING IN APPLIED ENTOMOLOGY THROUGH COLLABORATIVE RESEARCH IN DEMOCRATIC PEOPLE'S REPUBLIC OF KOREA

Brassica crops represent more than half of total vegetable production in DPRK and two major lepidopteron pests, Plutella xylostella and Pieris rapae, pose the principal constraints to production. On co-operative farms pests have been traditionally managed by scheduled application of broad spectrum insecticides with no attempt to conserve or utilize endemic natural enemies. In a collaborative research initiative, scientists from the University of Queensland worked closely with scientists from Sariwon Agricultural University and the Korean Academy of Agricultural Sciences, to build capacity in the fundamental aspects of integrated pest management and its implementation. The aim of the collaborative research was to identify and study the natural enemy complexes attacking P. xylostella and P. rapae on co-operative farms. Initial training was delivered via reciprocal country visits and stakeholder workshops. The entomological expertise of DPRK scientists was consolidated through a series of supervised field experiments, which compared the impact of prevailing pest management practices with pest-threshold based interventions of Bacillus thuringiensis (Bt), designed to conserve natural enemy populations. The Bt-natural enemy strategy increased crop yields by up to 56% and enhanced the impact of both parasitoids and predators on pest populations. On conclusion of the formal project in 2006, DPRK scientists successfully performed experiments to investigate the effects of management scale on the efficacy of natural enemies, demonstrating considerable increased capacity in integrated pest management since the start of the project. Further development of the strategy has since been constrained by the lack of available resources in DPRK.