Miracle-dz/UniFAR-FTUs huggingface dataset:
Churn Prepaid Customer Profile in Romanian Postmodernism Telecommunications

1 PhD. Student, Academy of Economic Studies, Bucharest, Romania, dumitrache.andreea03@gmail.com 2 PhD. Student, Academy of Economic Studies, Bucharest, Romania, denisa.melian@yahoo.com 3 Prof. Univ. Dr., Academy of Economic Studies, Bucharest, Romania, stelian_stancu@yahoo.com Abstract: The telecommunications industry is one of the sectors in which customers play an essential role in maintaining stable incomes. Having an impact on all spheres of postmodern life, telecommunications helps bring about major changes in the world. This can be considered the reason why the world can grow and grow at such a rapid rate. The telecommunications industry offers not only a better social awareness, but also a better life in general. Customer profiling is a very important resource for telecommunications companies because it helps to form a portrait of their customers. The purpose of this paper is to identify the profile of the client who makes churn from a telecommunications company in Romania. The study is performed on the prepaid segment using an analytical method that is easy to view and interpret, Violin Plot. In our study, this technique identified the situation of the prepaid churn customer in telecommunications as being defined by inactivity, small recharge values and extra-options.
New integral representations of the polylogarithm function

Maximon has recently given an excellent summary of the properties of the Euler dilogarithm function and the frequently used generalizations of the dilogarithm, the most important among them being the polylogarithm function Lis(z). The polylogarithm function appears in several fields of mathematics and in many physical problems. We, by making use of elementary arguments, deduce several new integral representations of the polylogarithm Lis(z) for any complex z for which |z|<1. Two are valid for all complex s, whenever Re s>1. The other two involve the Bernoulli polynomials and are valid in the important special case where the parameter s is a positive integer. Our earlier established results on the integral representations for the Riemann zeta function ζ(2n+1), n∈N, follow directly as corollaries of these representations.
Perceptionbased Intelligent Materialhandling in Industrial Logistics Environments

In response to increased costs in logistics, the degree of automation is to be significantly increased over the next few years. Therefore, in this publication the logistics use case, and thus the challenges of the field of application are first discussed. Subsequently, various possibilities for determining gripping points for robots will be addressed. These can be subdivided into holistic and modular approaches. Due to the improved comprehensibility as well as more influencing variables and better-developed fundamentals, a modular approach was chosen for the algorithm presented here. The 3-part algorithm first locates the position of all objects of the relevant class in space. The system then cuts out the objects that are not process relevant and the objects that are not execution-relevant. Finally, by applying a filter cascade to the depth image of the remaining object, the challenging surface of the container is searched for suitable gripping surfaces for the vacuum suction pad used. This algorithm is then implemented in a depalletizing robot and tested in the real environment under various scenarios. Under difficult industrial conditions (all containers dirty, with labels or even damaged) 72 % of the material flow could be successfully depalletized. The error rate is made up of approximately 10 % process error detections and 20 % incorrectly determined gripping points under more stringent industrial conditions. These instructions give you basic guidelines for preparing camera-ready papers.
Pericarp Pigmentation Correlates with Hormones and Intensifies with Continuation of Bud Sport Generations from ‘Red Delicious’

Bud sport mutants of apple (Malus domestica Borkh.) trees with a highly blushed colouring pattern are mainly caused by the accumulation of anthocyanins in the pericarp. Hormones are important factors modulating anthocyanin accumulation. However, a good understanding of the interplay between hormones and anthocyanin synthesis in apples, especially in mutants at the molecular level, remains elusive. Here, physiological and comparative transcriptome approaches were used to reveal the molecular basis of pericarp pigmentation in ‘Red Delicious’ and its mutants, including ‘Starking Red’, ‘Starkrimson’, ‘Campbell Redchief’ and ‘Vallee spur’, which were designated G0 to G4, respectively. Pericarp pigmentation gradually proliferated from G0 to G4. The anthocyanin content was higher in the mutants than in ‘Red Delicious’. The activation of early phenylpropanoid biosynthesis genes, including ASP3, PAL, 4CL, PER, CHS, CYP98A and F3’H, was responsible for anthocyanin accumulation in mutants. In addition, IAA and ABA had a positive regulatory effect on the synthesis of anthocyanins, while GA had the reverse effect. The down-regulation of AACT1, HMGS, HMGR, MVK, MVD2, IDI1 and FPPS2 involved in terpenoid biosynthesis influences anthocyanin accumulation by positively regulating transcripts of AUX1 and SAUR that contribute to the synthesis of IAA, GID2 to GA, PP2C and SnRK2 to ABA. Furthermore, MYB and bHLH members, which are highly correlated (r=0.882–0.980) with anthocyanin content, modulated anthocyanin accumulation by regulating the transcription of structural genes, including CHS and F3’H, involved in the flavonoid biosynthesis pathway.
Psychosomatic health complaints among adolescents in Stockholm : The role of supportive relations with parents and teachers

Family and school are the two major socialization agents for young people with important implications for their social, psychological and cognitive development. This thesis aimed to investigate the extent to which family conditions in terms of parental attachment and support (PAS) and school conditions in terms of participation and teacher support were associated with adolescents’ psychosomatic health. The thesis also explored whether school participation and support (SPS) could compensate for the potentially negative health implications of experiencing poor relational support at home. Association patterns according to gender and grade were also investigated. Data were derived from a classroom survey of all ninth and eleventh-grade students carried out in Stockholm 2006 (n=9,560). Results from linear regression analyses showed that both PAS and SPS were negatively associated with psychosomatic complaints. Gender and grade differences were also noted in respect to PAS and SPS as well as in the interaction between them. The study failed to find a compensatory function of school characteristics for less advantaged students, but modifying effects were nevertheless found. Students with a combination of high PAS and low SPS had worse health than expected, thus indicating that poor condition in school modifies the positive health effect of PAS in a negative way.
Unmanned Aerial Patrol Technology Based on Tracking Algorithm of Target Tracking

In order to study the power patrol technology of unmanned aerial vehicle, the tracking algorithm was applied. The automatic patrolling of power lines was discussed in terms of algorithms. An unmanned aerial vehicle transmission line inspection method based on machine vision was proposed. The image and video of the unmanned aerial vehicle inspection of the power line had a complex background. By Wiener filtering de-noising and probability density functions, the image clarity was improved. According to the existing tracking techniques and algorithms, a Camshaft target tracking algorithm based on lossless Kalman filter was proposed. The method of non-destructive Kalman filter was adopted to predict the region of interest of power line identification. Using the Camshaft algorithm, the prediction of the window was searched and the size of the window was adjusted. Transmission lines were tracked in real time. The results showed that the restoration effect of the algorithm was obvious. The clarity of the image was improved. It prepared for the extraction and tracking of the future transmission lines. Therefore, the proposed method provides a feasible way for the UAV power line inspection technology based on machine vision.
Sorghum‐Sudangrass Water Productivity Under Subsurface Drip Irrigation

Growing urban areas and industries tend to acquire water from the agricultural sector in order to satisfy their increasing water demand. As a result, agriculture needs to cope with limited available water for irrigation purposes. Yield response to water is, therefore, a basic piece of information that helps farm management to plan for water shortage. This research has determined the effect of water stress on yield production of sorghum‐sudangrass in semiarid eastern Colorado, USA. The research was conducted in an experimental field equipped with subsurface drip irrigation system during the 2015 and 2016 growing seasons. The goal was to define the functional relationship between crop actual evapotranspiration and marketable yield, or the crop water production function; the results support a linear relationship between the two variables, indicating that the productivity of water stays constant with changes in evapotranspiration. Average crop water productivity for sorghum‐sudangrass was 5.49 kg m‐3 for the 2 years of data, which is higher than water productivity of most forage crops. However, sorghum varieties tend to accumulate nitrogen during drought periods and hay nitrogen toxicity becomes a concern under water stress. The crop water production function developed in this research can be used to predict the effect of water stress on yield loss and consequent farm profit loss, which is essential in planning for water transfer and compensating farmers for forgoing irrigation. © 2018 John Wiley & Sons, Ltd.
An Invitation to Random Schroedinger operators

This review is an extended version of my mini course at the Etats de la recherche: Operateurs de Schroedinger aleatoires at the Universite Paris 13 in June 2002, a summer school organized by Frederic Klopp. These lecture notes try to give some of the basics of random Schroedinger operators. They are meant for nonspecialists and require only minor previous knowledge about functional analysis and probability theory. Nevertheless this survey includes complete proofs of Lifshitz tails and Anderson localization.
RAPD and VNTR analyses demonstrate genotypic heterogeneity of isolates from pigs housed in a region with high pig density

HAL is a multi-disciplinary open access archive for the deposit and dissemination of scientific research documents, whether they are published or not. The documents may come from teaching and research institutions in France or abroad, or from public or private research centers. L’archive ouverte pluridisciplinaire HAL, est destinée au dépôt et à la diffusion de documents scientifiques de niveau recherche, publiés ou non, émanant des établissements d’enseignement et de recherche français ou étrangers, des laboratoires publics ou privés. RAPD and VNTR analyses demonstrate genotypic heterogeneity of isolates from pigs housed in a region with high pig density Heiko Nathues, Elisabeth Grosse Beilage, Lothar Kreienbrock, Renate Rosengarten, Joachim Spergser
Zinoubi, Z. G. (2020). Motives of Green Consumption: The Moderating Roles of Perceived Consumer Effectiveness and Price

This paper aims to study a set of motives favoring purchase behavior while testing the mediating role of purchase intention within the context of green consumption. The literature review enabled us to distinguish mostly the following motives: health consciousness, environmental concern and the consumer’s social influence. The moderating roles of perceived consumer effectiveness and price sensitivity are also examined. The findings of a quantitative study involving 480 Tunisian consumers of green products indicate that protecting their health, supporting their environment and expressing their social affiliation are important motives of the consumers’ intention to buy green products. The intensity of these relationships is significantly moderated by the ‘consumer perceived effectiveness’. Thus, for the Tunisian consumer, a purchase intention is not consistent with a purchase behavior. It is indeed affected, in particular, by price sensitivity. The present study provides managerial insights for green marketers to operate in fast growing emerging markets.
A Study On Ant Colony Optimization

Mohd Yusoff, and J. Jang, Sol. Energy Mater. Sol. Cells, 111 (2013) 97–101. 10. M. D. Clark, M. L. Jespersen, R. J. Patel, and B. J. Leever, Org. Electron. , 15 (2014) 1–8. 11. T. M. Abdel-Fattah, E. M. Younes, G. Namkoong, E. M. El-Maghraby, A. H. Elsayed, and A. H. Abo Elazm, Synth. Met. , 209 (2015) 348–354. 12. A. Singh, A. Dey, D. Das, and P. K. Iyer, ACS Appl. Mater. Interfaces, 8 (2016) 10904–10910. 13. K. Marumoto, S. Kuroda, T. Takenobu, and Y. Iwasa, Phys. Rev. Lett. , 97 (2006) 256603. 14. K. Marumoto, N. Arai, H. Goto, M. Kijima, K. Murakami, Y. Tominari, J. Takeya, Y. Shimoi, H. Tanaka, S. Kuroda, T. Kaji, T. Nishikawa, T. Takenobu, and Y. Iwasa, Phys. Rev. B, 83 (2011) 075302. 15. T. Nagamori and K. Marumoto, Adv. Mater. , 25 (2013) 2362–2367. 16. T. Biskup, M. Sommer, S. Rein, D. L. Meyer, M. Kohlstädt, U. Würfel, and S. Weber, Angew. Chem. Int. Ed., 210 (2015) 148–155. 17. D. Son, T. Kuwabara, K. Takahashi, and K. Marumoto, Appl. Phys. Lett. , 109 (2016) 4963285. 18. G. Sato, D. Son, T. Ito, F. Osawa, Y. Cho, and K. Marumoto, Phys. Status Solidi A, 215 (2018) 1700731. 19. T. Kubodera, M. Yabusaki, V.A. S.A. Rachmat, Y. Cho, T. Yamanari, Y. Yoshida, N. Kobayashi, and K. Marumoto, ACS Appl. Mater. Interfaces, 10 (2018) 26434–26442. 20. Y. Kobori, T. Ako, S. Oyama, T. Tachikawa, and K. Marumoto, J. Phys. Chem. C, 123 (2019) 13472–13481. 21. V. A. S. A. Rachmat, T. Kubodera, D. Son, Y. Cho, and K. Marumoto, ACS Appl. Mater. Interfaces, 11 (2019) 31129–31138. 22. D. Xue, S. Kamiya, M. Saito, I. Osaka, and K. Marumoto, ACS Appl. Energy Mater. , 3 (2020) 2028–2036. 23. D. Xue, S. Kamiya, M. Saito, I. Osaka, and K. Marumoto, J. Photopolym. Sci. Technol. , 33 (2020) 97–102. 24. M. Zhang, F. Averseng, F. Haque, P. Borghetti, J. Krafft1, B. Baptiste, G. Costentin, and S. Stankic, Nanoscale, 11 (2019) 5102-5115. 25. M. Zhang, F. Averseng, J. Krafft, P. Borghetti, G. Costentin, and S. Stankic, J. Phys. Chem. C, 124 (2020) 12696–12704. 26. O. G. Poluektov, S. Filippone, N. Martın, A. Sperlich, C. Deibel, and V. Dyakonov, J. Phys. Chem. B, 114 (2010) 14426–14429. 27. C. Y. Chang, W. K. Huang, Y. C. Chang, and K. T. Lee, J. Mater. Chem. A, 4 (2016) 640– 648. 28. D. Liu, T. Nagamori, M. Yabusaki, T. Yasuda, L. Han, and K. Marumoto, Appl. Phys. Lett. , 104 (2014) 243903. 29. L. Schmidt-Mende and J. L. MacManusDriscoll, Mater. Today, 10 (2007) 40–48. 30. F. Yang, D. W. Kang, and Y. S. Kim, Solar Energy, 155 (2017) 552–560. 31. J. C. Yu, J. A Hong1 E. D. Jung, D. B. Kim, S. M. Baek, S. Lee, S. Cho, S. S. Park, K. J. Choi, and M. H. Song, Sci. Rep., 8 (2018) 1070. 32. Y. Wang, J. Chen, H. D. Kim, B. Wang, R. Iriguchi, and H. Ohkita, Front. Energy Res., 6 (2018) 113. 33. T. Nakamura, S. Yakumaru, M. A. Truong, K. Kim, J. Liu, S. Hu, K. Otsuka, R. Hashimoto, R. Murdey, T. Sasamori, H. D. Kim, H. Ohkita, T. Handa, Y. Kanemitsu, and A. Wakamiya, Nat.Commun. , 11 (2020) 3008. 34. J. L. Bredas, Mater. Horiz. , 1 (2014) 17-19. A Study On Ant Colony Optimization
The Development Productivity Dilemma: Managing the Flow of a Series of New Products

: In recent years, we have been observing a rise in cases of continuous development projects. However, if we try to improve development productivity using the data and development know-how that we have accumulated, it then becomes difficult to use this to expand product functions. In fact, a “development productivity dilemma” actually exists, in which it is difficult for each product to have both improved development productivity and expanded product functions. In the case discussed in this paper, however, the company sacrifices development productivity to expand the product functions of a particular product and then applies this to streamlining and simplifying subsequent products. In other words, the development productivity dilemma was overcome by managing the flow of a series of new products.
P-spaces and the Whyburn property

We investigate the Whyburn and weakly Whyburn property in the class of $P$-spaces, that is spaces where every countable intersection of open sets is open. We construct examples of non-weakly Whyburn $P$-spaces of size continuum, thus giving a negative answer under CH to a question of Pelant, Tkachenko, Tkachuk and Wilson. In addition, we show that the weak Kurepa Hypothesis (a set-theoretic assumption weaker than CH) implies the existence of a non-weakly Whyburn $P$-space of size $\aleph_2$. Finally, we consider the behavior of the above-mentioned properties under products; we show in particular that the product of a Lindel\"of weakly Whyburn P-space and a Lindel\"of Whyburn $P$-space is weakly Whyburn, and we give a consistent example of a non-Whyburn product of two Lindel\"of Whyburn $P$-spaces.
International Journal of Scientific Research in Science and Technology

A typical vehicle transmission is comprised of between five and six gear sets and a series of gear trains that allows a driver to control how much power is delivered to the vehicle without changing how fast the engine runs. This transmission makes noise due to gear inaccuracies such as burrs, nicks, high points and wrong heat treat scales are the leading causes of noise in power transmission. There are many different causes of gear noise, all of them theoretically preventable. Unfortunately, the prevention methods can be costly, both in equipment and manpower. If the design of the gear and its application are appropriate, in theory all that is necessary is to have a tight control on the process of producing the finished gear. In reality, there are many variables that can cause a process, no matter how well-controlled, to deteriorate, and thus cause errors, some of which will cause a gear to produce unwanted noise when put to use. The effective way to eliminate this noise the process known as "Gear Burnishing". The proposed system uses gear shaving cutter as a master for burnishing or deburring operation of gear teeth with servo mechanism (includes servo motor and servo drivers), Programmable logic controller (PLC), Human machine interface (HMI) to remove gear inaccuracies and so as to reduce or eliminate transmission noise and provide more life and reliability to transmissions in vehicles resulted into noise free vehicles.
Dual-T-Type Seven-Level Boost Active-Neutral-Point-Clamped Inverter

The conventional three-level active-neutral-point-clamped (ANPC) inverter requires high dc-link voltage at least twice the peak of ac output. To reduce the dc-link voltage, a recent topology that enhanced the voltage gain from half to unity has been presented. In this letter, an alternative ANPC topology is established by using two T-type inverters. Two floating capacitors with self-voltage balancing capability are integrated to achieve a voltage-boosting gain of 1.5. In addition, the proposed topology is capable of generating seven voltage levels. Its operation is validated through circuit analysis followed by experimental results of a prototype.
Enhanced sensitivity of the urban heat island effect to summer temperatures induced by urban expansion

A suitable thermal environment is important for the economy, society and public health in urban areas. However, the understanding of the relationship between the urban heat island (UHI) effect and background temperature (T-UHI) is very limited. In this study, theUHI effect induced by the urbanization of themegacity Beijing was investigated using the weather research and forecasting model. Urban expansion and heatwaves both considerably enhanced the UHI effect over urban areas in summer. The strengthenedUHI effect during the heatwave period can be clearly explained by the positive sensitivity of T-UHI. The urban expansion increased the sensitivity of T-UHI from 0.0207 °C °C in 2000 to 0.0569 °C °C in 2010 in the daytime and from 0.0715 °C °C in 2000 to 0.0995 °C °C in 2010 at nighttime, thus resulting in amuch stronger UHI effectmainly by increasing thedifference between the latent heatflux and sensible heatflux. This enhanced sensitivity may exacerbate the urbanheat stress in the situationof further urban expansion andbackground climate warming.Our results suggest that the sensitivity of T-UHI is ameaningful indicator to assess the urban thermal environment change and support the designingof heatmitigation strategies inurbanplanning.
Effects of IFRS adoption on tax avoidance*

This study investigates the association between mandatory International Financial Reporting Standards (IFRS) adoption and corporate tax avoidance. In this study, tax avoidance is defined as a reduction in the effective corporate income tax rate through tax planning activities, whether these are legal, questionable, or even illegal. Three measures of tax avoidance are used and factors at the country and firm level (that have already been associated with tax avoidance in prior research) are controlled. Using samples that range from 9,389 to 15,423 publicly-traded companies from 35 countries, covering 1999 to 2014, it is found that IFRS adoption is associated with higher levels of corporate tax avoidance, even when the level of book-tax conformity required in the countries and the volume of accruals are controlled, both of which are considered potential determinants of this relationship. Furthermore, the results suggest that after IFRS adoption, firms in higher booktax conformity environments engage more in tax avoidance than firms in lower book-tax conformity environments. It is also identified that engagement in tax avoidance after IFRS adoption derives not only from accruals management, but also from practices that do not involve accruals. The main conclusion is that companies engage more in tax avoidance after mandatory IFRS adoption.
Exploring Visual Prompts for Adapting Large-Scale Models

We investigate the efficacy of visual prompting to adapt large-scale models in vision. Following the recent approach from prompt tuning and adversarial reprogramming, we learn a single image perturbation such that a frozen model prompted with this perturbation performs a new task. Through comprehensive experiments, we demonstrate that visual prompting is particularly effective for CLIP and robust to distribution shift, achieving performance competitive with standard linear probes. We further analyze properties of the downstream dataset, prompt design, and output transformation in regard to adaptation performance. The surprising effectiveness of visual prompting provides a new perspective on adapting pre-trained models in vision. Code is available at http://hjbahng.github. io/visual_prompting .