Miracle-dz/UniFAR-FTUs huggingface dataset:
Mining Top-T Web Traversal Subsequences

There is rapid growth in the information over the internet from extensive range of sources thereby leading to information overload problem. Web mining is being used as solution to this problem. As website contains a large number of pages related to the same information. User has to traverse a sequence of web pages in search of relevant and required information. The traversal sequences of user show the user interest and habit. These traversal sequences could be used to reorganization website structure, thereby presenting the needed and important information to the user in a few clicks. In this paper, genetic algorithm is applied to find the Top-T traversal subsequences useful for reorganizing the website structure. It has been experimentally shown as the proposed algorithm is able to select better Top-T traversal subsequences than the existing Incremental Pattern Mining Algorithm.
Blank Background Image lossless Compression Technique

This paper presents a new technique able to provide a very good compression ratio in preserving the quality of the important components of the image called main objects. It focuses on applications where the image is of large size and consists of an object or a set of objects on background such as identity photos. In these applications, the background of the objects is in general uniform and represents insignificant information for the application. The results of this new techniques show that is able to achieve an average compression ratio of 29% without any degradation of the quality of objects detected in the images. These results are better than the results obtained by the lossless techniques such as JPEG and TIF techniques.
Apertureless near-field terahertz imaging using the self-mixing effect in a quantum cascade laser

We report two-dimensional apertureless near-field terahertz (THz) imaging using a quantum cascade laser(QCL)source and a scattering probe. A near-field enhancement of the scattered field amplitude is observed for small tip-sample separations, allowing image resolutions of ∼1 μm (∼λ/100) and ∼7 μm to be achieved along orthogonal directions on the sample surface. This represents the highest resolution demonstrated to date with a THz QCL. By employing a detection scheme based on self-mixing interferometry, our approach offers experimental simplicity by removing the need for an external detector and also provides sensitivity to the phase of the reinjected field.
A Multilevel Approach for Social Transformations and its Implications on Service Design Education.

Abstract: This paper is looking at two parallel transformations -in the methodological approach to service design and in the way new social initiatives are designing new solutions – to suggest a framework to re-organise service design education. The paradigmatic framework for the service design discipline is shifting from a methodological approach that qualified services as “what is not a product” to a new approach that moves the control over the value creation process from designers and producers to the interaction among a constellation of stakeholders. Together with this shift, a parallel transformation can be observed in society, with the emergence of new organisational forms, based on collaboration, P2P and sharing concepts, which have a disruptive power over the existing social and economic system. The new initiatives, are often promoted and controlled by citizens, users or constellation of stakeholders and are framed in production/business models that do not refer to the value-chain model that inspired the industrial paradigm. Both those transformations are challenging the discipline of service design and in particular service design education, because it calls for a perspective shift, from a normative perspective, in which the designer (and consequently the service provider) was deciding modes and characteristics of value creation, to a perspective in which the designer/service provider is simply mediating the process of co-creation by generating means that support social transformation. This paper will propose a framework of new competences and tools that are being developed in design education and research, in order to address the different levels of this structure.
Recovering Scrap Anode Copper Using Reactive Electrodialysis

Despite functioning without major operational problems—copper electro-refining does not allow complete use of copper anodes, peaking at 85% of the copper anode in weight. Consequently, the remaining 15% of scrap copper must be recirculated into the copper smelting. The use of reactive electrodyalysis is a system capable of continuously electro-refining scrap, by using a stainless steel basket and a cationic exchanging membrane in order to increase production of copper cathodes at the same percentage; it currently today returns to the copper smelter. In terms of specific energy consumption, this process would use between 3 and 4 times the value of normal electro-refining.
Can components in distortion-product otoacoustic emissions be separated?

Otoacoustic emissions are signals emitted from the cochlea, either spontaneously or evoked by stimuli. Measured with an acoustic probe sealed in the ear-canal, they reveal information about a part of the mechanism of hearing that is otherwise inaccessible. Outer hair cells in the cochlea work to improve hearing sensitivity by means of nonlinear amplification, which produces distortion. In the measurement of otoacoustic emissions, two tones can be delivered to the cochlea to invoke this nonlinearity and elicit the distortion-product otoacoustic emission (DPOAE). DPOAEs arise mainly from two spatially separated generation mechanisms, thus making interpretation of DPOAE measurements complicated. In this study, we test whether or not source separation by group delays is equivalent to separation by time delays – either result is equally interesting to understand given the complexity of the cochlea. Specifically, DPOAEs from 500 Hz to 4000 Hz were measured in 20 normal-hearing human ears, using exponentially swept, fixed-ratio primaries. Source separation by group delays relied on gating in the DPOAE latency domain, obtained by an inverse Fourier transform of DPOAE magnitude and phase. Source separation by time delays relied on adding physical delays, suggested by the group delays, to a model used to estimate the swept DPOAEs.
The catalytic domain is separated from the cellulose-binding domain in Cellulomonas fimi endoglucanase

The catalytic domain is separated from the cellulose-binding domain in Cellulomonas fimi endoglucanase CenA by a proline-threonine rich sequence called the Pro-Thr box. To study the function of the Pro-Thr box region, a deletion mutant, cenAAPT, was made from cenA by an oligonucleotide directed in vitro mutagenesis. The truncated enzyme, CenAAPT, was purified to homogeneity by affinity chromatography on cellulose and characterized. Comparing CenAAPT to CenA, the following characteristics were observed: 1) the Pro-Thr box affected the migration of CenA on SDS-PAGE; 2) the deletion of the Pro-Thr box altered the high affinity interaction with cellulose; 3) the truncated enzyme showed 40-50% reduction in catalytic activity towards both microcrystalline and amorphous cellulose; 4) the truncated enzyme was as sensitive as CenA to a C.fimi protease, and both enzymes were cleaved at the same site adjacent to the binding domain. The Pro-Thr box is not essential for the catalytic activity of CenA or its binding to cellulose, but it does contribute to both functions.
Trends in Business Ownership in Central and East European Transition Economies

We investigate developments in business ownership rates in four CEE transition economies (Czech Republic, Hungary, Poland and Slovak Republic), and compare them with similar developments in other OECD countries in the period 1989-2008. Our analysis reveals that business ownership rates in the four CEE countries have been converging rapidly towards the levels of other OECD countries, and these CEE countries were able to rebuild their private sectors in a relatively short period of transition. We also find sizable differences among the four CEE countries under study in the level and dynamics of change of business ownership since 1989.
TAUNO TOIKKA FEASIBILITY OF SELECTED MACHINE LEARNING METH- ODS FOR FAILURE FORECASTING OF AEROPLANE FLIGHT CONTROL SURFACES

TAUNO TOIKKA: Feasibility of selected machine learning methods for failure forecasting of aeroplane ight control surfaces Tampere University of Technology Master of Science thesis, 61 pages, 2 Appendix pages 17th March 2017 Master's Degree Programme Mechanical Engineering and Industrial Systems Major: Analysis of Machines and Structures Examiner: Prof. Kari T. Koskinen
A Damped Diffusion Framework for Financial Modeling and Closed-Form Maximum Likelihood Estimation

Asset price bubbles can arise unintentionally when one uses continuous-time diffusion processes to model financial quantities. We propose a flexible damped diffusion framework that is able to break many types of bubbles and preserve the martingale pricing approach. Damping can be done on either the diffusion or drift function. Oftentimes, certain solutions to the valuation PDE can be ruled out by requiring the solution to be a limit of martingale prices for damped diffusion models. Monte Carlo study shows that with finite time-series length, maximum likelihood estimation often fails to detect the damped diffusion function while fabricates nonlinear drift function.
Investigating correlations between earthquakes and extreme eventsin self-potential data recorded in a seismicarea of Southestern Appennine Chain (Italy)

The Normalized Wavelet Cross-Correlation Function (NWCCF) was used to study correlations between the series of extreme events in self-potential data and earthquakes, both modelled as stochastic point processes. This method gives objective results, robust to the presence of nonstationarities that often affect observational time series. Furthermore, the NWCCF identifies the timescales involved in the cross-correlated behaviour between two point processes. In particular, we analyzed the cross-correlation between the sequence of extreme events in selfpotential data measured at the monitoring station Tito, located in a seismic area of Southern Italy, and the series of earthquakes which occurred in the same area during 2001. To evaluate the influence of rain on the dynamics of geoelectrical variations, we applied the same approach between the selected extreme values and the rain data. We find that the anomalous geoelectrical values seem to cross-correlate with the rain at short and intermediate timescales (t 500 h).
ON-FARM MEASUREMENT OF THE WATER USE PRODUCTIVITY OF MAIZE

Maize, as a C4 species, is likely to use water more efficiently than the perennial ryegrass/white clover pastures typically grown for dairy cows in northern Victoria. However, only estimates of water use by irrigated maize crops are available for this region. We measured the growth and water use of 3 commercial maize crops, used for silage, in northern Victoria. Crops under centre pivot irrigation were monitored in 2003/04 (Spray 1) and 2004/05 (Spray 2). A border-check irrigated crop (Flood) was monitored in 2004/05. The Spray 1 crop was irrigated 30 times, and received 753 mm of rainfall and irrigation. The crop yielded 22 t DM/ha, giving a water use productivity of 28 kg DM/ha.mm (including irrigation, rainfall and change in soil water storage). In the cooler summer of 2004/05, the water use productivity was 34 kg DM/ha.mm for the Spray 2 crop and 30 kg DM/ha.mm for the Flood crop. Maize grown for silage in northern Victoria has a higher water use productivity than pastures. However, high yields are required to make it economically viable compared with alternative forages for dairy cows. These data will be used in future desktop tools to assist dairy farmers select the optimum forage mix for their enterprise.
Conference on Surface Integrity ( CSI ) Kinematic and Stochastic Surface Topography of Machined TiAl 6 V 4-Parts by means of Ball Nose End Milling

Ball nose end mills are usually applied during 5-axes machining of high functional parts especially in the aerospace industry. The systematical study of the relationship between process forces and kinematics, surface topography and subsurface properties is fundamental to ensure a high surface integrity. This paper deals with the topography of machined surfaces of TiAl6V4 parts by means of ball nose end milling. The machined surface has been analyzed and the kinematic topography, influenced by the process parameters and the geometry of the cutting tool, has been computed. By subtracting the surface measurements from the computed topography, the stochastic topography of the machined surface, e.g. roughness and cracks, can be determined. Furthermore, an approach is given for predicting the stochastic topography based on the process forces during machining of TiAl6V4. © 2012 Published by Elsevier Ltd. Selection and peer review under responsibility of Prof E Brinksmeier .
Telephone based Lactation Counseling: A Qualitative Study on the LactationCounselors Experience

Background: This qualitative study was undertaken as a follow-up of the results of a randomized controlled trial (RCT) conducted in Kuala Lumpur in 2010. Objective: The main objective of this study was to explore the Lactation Counselors’ perspectives regarding counselor-initiated telephone-based lactation counseling service to mothers in Kuala Lumpur. Methods: In-depthinterviews were held with the lactation counselors. The analytical framework was conceptualized using the Grounded Theory method. Results: The greatest determinant which affected telephone-based lactation counseling was the intention of counselors, followed by external factors such as time constraints, mothers’ behaviors and their control in decision making, family influence and cultural differences. Strong motivation is required for the counselors to perform telephone lactation counseling. Conclusion: The Lactation Counselors in general have appreciated the experiences and benefits gained from the service. However, external factors pose major impact towards the conduct and effectiveness of counseling.
Design A Quadband Frequencies Microstrip Patch Antenna with Double C- Shaped Slot

A quadband frequencies microstrip square patch antenna with double C-shaped slot at the patch is proposed in this paper. First, a rectangular shaped patch antenna is designed for 2.40 GHz frequency (WLAN application) with narrow bandwidth of 67 MHz (operate better than – 10 dB between 2.368 GHz and 2.435 GHz). Then, the double C-shaped slot had been embedded in the rectangular patch antenna. There are four stages of design (Design I, Design II, Design III and Design IV) with different dimensions of patch width and substrate width. This addition of this C-shaped slot had been producing a quadband frequency range of 2.40 GHz (2.368 GHz – 2.421 GHz), 5.0 GHz and 5.2 GHz (4.795 GHz - 5.333 GHz) and 5.6 GHz (5.521 GHz – 5.677 GHz). Parametric study with different dimension are also had been considered in Design III and Design IV.
IN VITRO ANTI-DIABETIC AND ANTI-OXIDANT ACTIVITIES OF ETHANOL EXTRACT OF TINOSPORA SINENSIS

Objective : The aim of the present study was to evaluate the alpha (α)-amylase and alpha (α)-glucosidase inhibitory activities and in vitro antioxidant activities of the 80 % aqueous ethanol extracts of Tinosporasinensis Lour (Merr.). Methods : The 80% aq. ethanol extract of the plant was prepared. The plant extract was examined for its antioxidant activity by using free radical 1,1-diphenyl-2-picryl hydrazyl (DPPH) scavenging method, ABTS radical scavenging ability, reducing power capacity, estimation of total phenolic content, flavonoid content and flavonol content. Different concentrations (2, 4, 8,10and 15 μg/ml) of the extract was subjected to α-amylase inhibitory and α-glucosidase inhibitory activities and IC 50 were calculated. Results: The study revealed that the different concentrations of the plant extract possessed a very good amount of total phenolics, flavonoid and flavonol and exhibited potent radical scavenging activity using DPPH and ABTS as a substrate. The ethanol extracts exhibited significant α-amylase and α-glucosidase inhibitory activities with an IC 50 value1. 093µg and 1. 04µg dry extract respectively and well compared with standard acarbose drug. Conclusion: Thus, it could be concluded that due to the presence of antioxidant components the plant extracts could be used for the treatment of hyperglycemia, diabetes and the related condition of oxidative stress. This knowledge will be useful in finding more potent components from the natural resources for the clinical development of antidiabetic therapeutics.
Swedish Speech Recognition Using Linear Time Normalization and Feature Selection Optimization

A system for Swedish isolated word recognition has been developed, intended for use in an intelligent news read er agent for elderly care. The system uses linear time normaliz ation of feature time series, as well as optimization (with a genet ic algorithm) of both feature selection and feature weighting. The optimization of feature selection results in a potentiallyimportant decrease in the time needed to recognize a spoken word, while maintaining speech recognition performance. Keywords-Speech recognition; optimization; linear time normalization
Holographic dual of a time machine.

We apply the $AdS/CFT$ holography to the simplest possible eternal time machine solution in $AdS_3$ based on two conical defects moving around their center of mass along a circular orbit. Closed timelike curves in this space-time extend all the way to the boundary of $AdS_3$, violating causality of the boundary field theory. By use of the geodesic approximation we address the "grandfather paradox" in the dual $1+1$ dimensional field theory and calculate the two-point retarded Green function. It has a non-trivial analytical structure both at negative and positive times, providing us with an intuition on how an interacting quantum field could behave once causality is broken. In contrast with the previous considerations our calculations reveal the possibility of a consistent and controllable evolution of a quantum system without any need to impose additional consistency constraints.
A HEURISTIC TEST TO UNDERSTAND USER MENTAL MODEL OF A FLIGHT SCHEDULE SEARCH FORM

A HEURISTIC TEST TO UNDERSTAND USER MENTAL MODEL OF A FLIGHT SCHEDULE SEARCH FORM aPaulus Insap Santosa, bRianto a,bDepartment of Electrical Engineering & Information Technology, UGM Jalan Grafika No. 2, Yogyakarta 55281, Indonesia E-Mail: a insap@jteti.gadjahmada. edu Abstrak Situs web yang bagus adalah situs yang sederhana dan berguna bagi penggunanya. Antarmuka merupakan salah satu aspek penting yang menentukan keberhasilan suatu situs web. Makalah ini ini melaporkan hasil sebuah studi untuk mengevaluasi ransangan situs tiket online. Secara khusus, studi ini berfokus pada kombinasi warna dan kebiasaan pengguna. Test kebergunaan dilakukan dengan membandingkan situs web Garasitiket (Form1) aktif dengan rancangan alternatifnya (Form2). Form 1 dan Form2 dirancang secara berbeda dalam hal cara memilih jadwal penerbangan. Metode riset yang digunakan dalam studi ini adalah uji heuristik. Responden, berjumlah 99 orang, berasal dari anggota Garasitiket. Uji sampel-berpasangan (paired-sample test) digunakan untuk menentukan apakah Form1 berbeda dengan Form2. Hasil penelitian menunjukkan bahwa kebiasaan responden mempengaruhi pilihan antarmuka yang digunakan. Ada kecenderungan dari anggota Garasitiket untuk tidak tertarik pada kombinasi warna. Mereka lebih fokus pada hasil pencarian dan kesederhanaan rancangan situs. Analisis statistis menunjukkan bahwa ada perbedaan signifikan antara Form1 dan Form2. Lebih lanjut, responden lebih memilih Form1 dibandingkan dengan Form2. Kata kunci: Model Mental, Kebergunaan, Jadwal Penerbangan, Uji Heuristik. Abstract A great web site should be simple and usable to its users. Interface design is one important aspect that determine the success of certain website. This paper reports the result of a study to evaluate the design of an online ticket website. In particular, the study focuses on color combination, and uses’s habit. Usability test was done by comparing the published Garasitiket Website (Form1) and its alternative (Form2). Form 1 and Form2 were designed differently in term of the way respondents determined their flight schedule. Research method used for this study was heuristic test. Respondents, 99 people, were from members of Garasitiket. Paired-sample test was used to determine whether Form1 differs from Form2. The results indicated that members’ habit influences user interface selection. There was a tendency of Garasitiket members to not interested in color combinations. Rather, they were more focus on the search results and Web design simplicity. Statistical analyses indicated that there was significant difference between Form1 and Form2. Furthermore, Form1 was more preferable. Keywords: Mental Model, Usability, Flight Schedule, Heuristic Evaluation
Level of fatigue and daytime sleepiness among heavy vehicle drivers in Sri Lanka

Heavy vehicle crash rates are high in Sri Lanka. International studies showed that fatigue and day time sleepiness are linked to heavy vehicle crashes. The aim of this study is to examine the level of fatigue, day time sleepiness and their associated factors among heavy vehicle drivers in Sri Lanka. A descriptive cross-sectional study was carried out in 403 heavy vehicle drivers through an interviewer administered structured questionnaire consisting of the ‘Fatigue Severity Scale’ (FFS) and the ‘Epworth Sleepiness Scale’ (ESS). The mean age of the study sample was 36.5±8.6 years and all were males. They drive an average of 129.03±87.24 km/day. It was found that the mean FFS score in the study participants was 2.43±0.99 and the mean ESS score was 6.57±4.07. Prevalence of fatigue (FSS score ≥4) was 8.7% (n=35) and the prevalence of excessive day time sleepiness (EDS) (ESS score ≥10) was 14.4% (n=58). Working for non-fixed schedule, married marital status, and working more than 11 hours/day are found to be significant risk factors for being fatigue. Drivers who were having night sleep of less than 6 hours were found to have a higher risk of EDS. A high prevalence of fatigue (8.7%) and EDS (14.4%) among heavy vehicle drivers was found which may link to heavy vehicle crashes. The occupational health service providers should be aware of the possibility of fatigue and daytime sleepiness in heavy vehicle drivers and its overall risk on the roads to take neces-sary actions. DOI: http://dx.doi. org/10.3329/seajph.v4i1. 21832 South East Asia Journal of Public Health Vol.4(1) 2014: 9-16
Estimating Regional Poverty Lines With Scarce Data: An Application to Brazilian Regions

The recent emphasis on fighting poverty in Brazil makes the determination of the size of the targeted population an important issue (What is the right poverty line? What is the real size of the poor population? How much money should be given to each poor family? ). The application of poverty lines based on national income levels tends to produce important distortions at the regional level. Using data from a Household Expenditure Survey (HES) that covered some regions in Brazil, the paper develops and applies a methodology to define poverty lines for all regions and urban areas. These lines are based on nutritional requirements, thus avoiding the purchasing power parity problem, and take into account non-monetary income and in-kind consumption, aspects that are very important at the rural level. The HES results are matched with Census data, allowing for the estimation of rural and urban poverty lines for Brazilian regions.