Miracle-dz/UniFAR-FTUs huggingface dataset:
Modeling expected inventory order crossovers

Expected inventory order crossovers occur if at the moment of ordering it is expected that orders will not arrive in the sequence they are ordered. Recent research has shown that (a) expected inventory order crossovers will be encountered more frequently in future, and that (b) use of a myopic order-up-to policy based on a stochastic dynamic programming approach leads to improved performance compared to the classical approach. In this paper we show that the improved policy is still heuristic in nature, as it neglects several control options that are available on the various ordering moments and makes some restrictive assumptions with respect to the separability (i.e., decomposability) of the stochastic dynamic programming problem. We propose further improvements in the policy for situations where a quadratic cost function is appropriate. Finally, we present some insights in the determination of safety stock levels in case of expected inventory order crossovers.
Tree mortality after prescribed burning in an old-growth Scots pine forest in northern Sweden

Tree mortality and input of dead trees were studied after a prescribed burning in a forest reserve in northern Sweden. The stand was a multi-layered old-growth forest. The overstorey was dominated by Scots pine (Pinus sylvestris L.) and the understorey consisted of mixed Scots pine and Norway spruce (Picea abies L. Karst.). Ground vegetation was dominated by ericaceous dwarf-shrubs and feathermosses. The stand has been affected by six forest fires during the last 500 years. The prescribed burning was a low intensity surface fire that scorched almost 90 % of the ground. Tree mortality for smaller pines and spruces (DBH < 10 cm) was over 80 % in the burned parts of the reserve. For larger pines, 10‐50 cm DBH, mortality showed a decreasing trend with increasing diameter, from 14 % in class 10‐20 cm DBH to 1.4 % in class 40‐50 cm DBH. However, pines with DBH ≥ 50 cm had a significantly higher mortality, 20 %, since a high proportion of them had open fire scars containing cavities, caused by fungi and insects, which enabled the fire to burn inside the trunks and hollow them out. The fire-induced mortality resulted in a 21 m 3 ha‐1 input of dead trees, of which 12 m 3 ha‐1 consisted of trees with DBH ≥ 30 cm. An increased mortality among larger trees after low-intensity fires has not previously been described in Fennoscandian boreal forests, probably owing to a lack of recent fires in old-growth stands. However, since large pines with open fire scars were once a common feature in the natural boreal forest, we suggest that this type of tree mortality should be mimicked in forestry practices aiming to maintain and restore natural forest biodiversity.
Voltage Swell Compensation in an Interline Dynamic Voltage Restorer

The Dynamic Voltage Restorer (DVR) provides an advanced and economical solution for voltage swell problems. The voltage-restoration process involves real-power injection into the distribution system. The Interline DVR (IDVR) proposed in this paper provides a way to compensate the voltage deviation caused in a feeder. The IDVR consists of several DVRs connected to different distribution feeders in the power system sharing common energy storage. Here, one DVR in the IDVR system works in voltage-swell compensation mode while the other DVR in the IDVR system operate in power-flow control mode. The single phase model of the IDVR system is illustrated which is operated by Multiple Pulse Width Modulation (PWM). Closed-loop control scheme of load voltage for a simple system is modeled and simulated using MATLAB software. The simulation results are presented to demonstrate the effectiveness of the proposed IDVR system.
Modeling and simulation of the formation of vascular networks

The formation of blood vessels is driven by chemical and mechanical interactions between the cells and their extracellular matrix. New vasculature can emerge in the presence of angiogenic factors or as a result of cell traction forces onto the extracellular matrix. The respective contribution of chemical or mechanical events during angiogenesis is still unclear. We present a mathematical model that incorporates such interactions and examine the conditions necessary for the formation of pattern. The model treats the extracellular matrix as a linear viscoelastic material and cellular movement either as a process inuenced by the local strain eld or as a chemotactic movement, in response to chemical gradients.
Microbial soil quality indicators under different crop rotations and tillage management

An experiment was carried out under field conditions to assess the effects of soil management (no-tillage- NT and conventional tillage- CT) and crop rotation systems on microbial biomass-C (C mic ), basal soil respiration (BSR), metabolic quotient (qCO 2 ), soil organic carbon content (C org ) and microbial carbon to organic carbon ratio (C mic /C org ). Soil samples were collected on an area cultivated with wheat as winter crop and soybean as summer crop, both in rotation with vetch, maize and oats. Samples were also collected in a secondary forest used as reference. Data of each management system (NT and CT) were compared to forest area by "t" test (p<0.05) and crop rotations were compared by Tukey test (p<0.05). All data were submitted to multivariate analysis (Principal Component Analysis - PCA). There were observed significant differences ("t" test; p<0.05) for C mic , BSR, qCO 2 and C mic /C org between NT and CT, by which NT values resemble those for forest area. For crop rotations significant differences (Tukey test; p<0.05) were found only for BSR and qCO 2 . The sum of the two first principal components on the PCA explained about 75% of the data variation. PCA showed NT closest to forest area than CT, especially treatments with soybean and vetch as consecutive crops. The forest area-NT clustering was mostly due to C mic and C mic /C org relationship. Results indicate that the NT system is more sustainable than the CT system and can contribute for the accumulation a greater quantity of carbon in soil.
CML based estimation of extended Rasch models with the eRm package in R

This paper presents an open source tool for computing extended Rasch models. It is realized in R (R Development Core Team, 2006) and available as package eRm. In addition to ordinary Rasch models extended models such as linear logistic test models, (linear) rating scale models and (linear) partial credit models can be estimated. A striking feature of this package is the implementation of conditional maximum likelihood estimation techniques which relate directly to Rasch's original concept of specific objectivity. The mathematical and epistemological benefits of this estimation method are discussed. Moreover, the capabilities of the eRm routine with respect to structural item response designs are demonstrated.
Mención Genética Molecular y Microbiología SYNTHESIS AND DEGRADATION OF INDOLE-3-ACETIC ACID BY BURKHOLDERIA PHYTOFIRMANS PsJN

3 GENERAL INTRODUCTION 4 MATERIAL AND METHODS 10 RESULTS 23 IAA synthesis by B. phytofirmans PsJN 23 Tryptophan-dependent IAA synthesis pathways in B. phytofirmans PsJN 24 Growth of B. phytofirmans PsJN on IAA 28 Functional IAA degradation genes in B. phytofirmans PsJN 28 Participation of ortho catechol degradation genes in IAA catabolism 34 IAA dependent iac and cat genes expression 35 Promoter activity of iac genes 35 Resting cells IAA degradation by B. phytofirmans PsJN and iac mutants 38 Expression of the iac genes cluster in a heterologous strain 40 Effect of an IAA degradation mutant of B. phytofirmans on growth promotion and colonization of A. thaliana 43 Interplay between biosynthesis and degradation of IAA 45
On Using Object-Relational Technology for Querying LOD Repositories

—Query engines for managing RDF repositories based on relational technology represent an alternative to query engines based on triple-stores. The paper presents adaptation of object-relational technology for managing RDF data. The architecture of query engine for RDF databases is proposed: i) mapping of RDF graph model to object-relational representation is described, and ii) internal structures and methods used for the implementation of query engine are discussed. While following the architecture of object-relational systems we adapt it for the speciﬁc operations deﬁned on RDF data.
Alternative calculation of the Casimir forces between birefringent plates

Barash has calculated the Casimir forces between parallel birefringent plates with optical axes parallel to the plate boundaries [Izv. Vyssh. Uchebn. \ Zaved. , Radiofiz. , {\bf 12}, 1637 (1978)]. The interesting new feature of the solution compared to the case of isotropic plates is the existence of a Casimir torque which acts to line up the optical axes if they are not parallel or perpendicular. The forces were found from a calculation of the Helmholtz free energy of the electromagnetic field. Given the length of the calculations in this problem and hopes of an experimental measurement of the torque, it is important to check the results for the Casimir forces by a different method. We provide this check by calculating the electromagnetic stress tensor between the plates and showing that the resulting forces are in agreement with those found by Barash.
Agricultural drought and spring barley yields in the Czech Republic

The relationship between detrended district yields of spring barley (1961–2000) and meteorological drought was assessed by Palmer Z-index. We found that the seasonal water balance (April–June) significantly (P = 0.05) influences the spring barley production in 51 out of 62 evaluated districts. Coefficients of correlation varied in individual districts from 0.19 to 0.70, with the highest values being found in southern Moravia. Data analysis revealed the presence of six distinct groups of districts with a specific drought-yield relationship. The most drought-sensitive cluster included five districts in the South East of the country. On the other hand, the districts in Northern Moravia and Silesia belong among the least sensitive to agricultural drought. The study also defined threshold values of seasonal drought (sums of relative Palmer Z-index lower than –8 and –10, respectively), below which medium to severe spring barley yield reductions are very likely, regardless of the district of occurrence.
Manufacturing ontology through templates

The manufacturing industry contains a high volume of knowhow and of high value, much of it being held by key persons in the company. The passing of this know-how is the basis of manufacturing ontology. Among other methods like advanced filtering and algorithm based decision making, one way of handling the manufacturing ontology is via templates. The current paper tackles this approach and highlights the advantages concluding with some recommendations.
INTENTION TO PURCHASE VIA THE INTERNET: A COMPARISON OF TWO THEORETICAL MODELS

This study compares two models for predicting intention to purchase via the Internet. The behavioral intention to purchase via the Internet was examined as a function of attitude towards purchase, perceived usefulness, and perceived ease of use Technology Acceptance Model (TAM), or attitude towards purchase, subjective norm, and perceived risk (Theory of Planned Behavior [TPB]). Results indicate that both models significantly influenced behavioral intention to purchase. We compared both models, and found that TPB (adjusted R 2 = 0.55) is better than TAM (0.44) in explaining behavioral intention to purchase (BI). After we integrated TAM and TPB, we found that perceived risk (β = –0.332) is the primary determinant of BI, with subjective norm (SN) (β = 0.210) as the significant secondary determinant, followed by attitude (A) towards purchase (β = 0.175), perceived usefulness (β = 0.159), and perceived ease of use (β = 0.069).
In Vitro Simulation of Electroporation Using Potato Model

Electrochemotherapy (ECT) and Irreversible Electroporation (IRE) for tissue ablation are two non-thermal recent techniques employed for the treatment of tumors [1], [2]. These wellestablished approaches exploit the physical phenomenon firstly described as a ‘dielectric breakdown’, but now called cell electroporation (EP, or electropermeabilization) [3]–[6]. In the cell perspective, during the application of an electric field (EF) sufficiently high to induce ~1 V transmembrane voltage, the bilayer lipid membrane experiences an electro-mechanical conformation that reduces its normal selectivity [5]. The main theory to explain this increase in conductivity considers the opening of pores around the cell poles, which are resealed after the EF is ceased [7], [8]. This is the same phenomenon behind gene electrotransfer in cell culture [9], DNA vaccines [10], or water treatment against microorganisms [11].
Hot Topic Detection on Newspaper

Online newspaper nowadays is gradually replacing the traditional one and the variety of articles on newspaper motivated the need for capturing hot topics to give Internet users a shortcut to the hot news. A hot topic always reflects the people's concern in real life and has big impact not only on community but also in business. In this paper, we proposed a novel topic detection approach by applying Hierarchical Density-Based Spatial Clustering of Applications with Noise (HDBSCAN) on Vector Space Model (VSM) to solve the challenge in noisy data and Pearson product-moment correlation coefficient (PMCC) on high ranking keywords to identify topics behind keywords. The proposed approach is evaluated over a dataset of ten thousand of articles and the experimental results are competitive in term of precision with other state-of-the-art methods.
Modeling persistence of volatility in the Moroccan exchange market using a fractionally integrated EGARCH

Abstract. We have tried in this article to detect, examine, and analyze the persistence in the conditional volatility of the major Moroccan stock market index called MASI, using a fractionally integrated EGARCH model that has the property of capturing long memory along with shocks to the conditional volatility. A GARCH (1,1) and IGARCH models were also estimated for comparative purposes using Akaike, Schwarz and log likelihood information criterion. We used daily returns of MASI index covering the period between 04/01/1993 and 03/02/2017. Our results confirm the presence of a strong persistence in the volatility of the Moroccan index which is inconsistent with the weak efficiency form of Fama’s efficient markets hypothesis. The findings of this study could be of particular use to investors and academics interested in the forecasting of daily volatility in the Moroccan context. This paper broadens previous long memory estimation research by applying a FIEGARCH specification enabling it, not only to account for persistence, but also, to measure the leverage effect. Moreover, we believe that, to the best of our knowledge, this paper is the first to model the volatility of the Moroccan stock market using a FIEGARCH approachng. Keywords. Volatility, Persistence, Long memory, FIEGARCH, MASI. JEL. G11, G17, C53, C58.
School of Marketing 2011-12-10 Learning by Gaming : Supply Chain Management

Today’s third level students are of a virtual generation, where online interactive multi-player games, virtual reality and simulations are a part of everyday life, making gaming and simulation a very important catalyst in the learning process. Teaching methods have to be more innovative to help students understand the complexity of decisions within dynamic supply chain environment. Interactive simulation games have the potential to be an efficient and enjoyable means of learning. A serious interactive business game, Automobile Supply Chain Management Game (AUSUM), has been introduced in this paper. Using theories learnt in class as a knowledge base, participants have to develop effective supply chain partnership strategy to enhance their supply chain networks. Deploying the game over the web encourages student interaction and group work. Most importantly the game will enable students to fundamentally grasp the impact of strategic decisions on other parts and players of the supply chain network.
Comparative characteristics of radiographic classifications of the consequences of septic coxitis in children

Introduction Septic coxitis is sustained in the early childhood and has a devastating effect on the musculoskeletal system. Systematization of the acquired defects and deformities is of great importance for treatment planning and outcome prediction. A radiographic classification based on the features of the deformities in the proximal femur and acetabulum as well as on their mutual orientation was proposed at the Russian Ilizarov Scientific Center for Restorative Traumatology and Orthopaedics. Purpose To study the reliability of the mentioned classification and to compare it with other classifications. Material and Methods Six orthopedic surgeons divided into two groups according to their specialization evaluated 23 X-rays of the hips using the classification systems of I.H. Choi, O.A. Sokolovsky, Е. Forlin, and RISC for RTO. Two orthopedic surgeons re-evaluated them two weeks later. Intra-rater and inter-rater agreement was determined using kappa value calculations. Results The number of inter-rater and intra-rater consensus depended on the specialization of experts, and it was higher in the first group. The highest proportion of the coincidences of three expert conclusions was observed when the classification systems of Forlin and RISC for RTO were used. The values of intra-rater and inter-rater reliability of the RISC for RTO classification were 0.542-0.641 and 0.436-0.738. Conclusion Taking into account a sufficient level of reliability, the RISC RTO classification can be used as a working system by planning surgical treatment and for prediction of its outcome in children with consequences of septic coxitis.
New Product Development Process and its Impact on Product Quality

In today’s global market, enterprises are faced with intensive competition and, in order to obtain a sustainable competitive advantage, they have to adopt new processes and systems for the development of their new, as well as the improvement of the existing, products. This research proposes a new model that incorporates many factors that are found to positively influence the new product development (NPD) process. Many other important parameters, which negatively affect the application of a new product development model, are also discussed. The research sample consists of 230 Greek firms. Data analysis includes the use of some statistical methods such as factor analysis, correlation analysis and reliability analysis. Although some of the results contradict some of the previous findings (for example the relationships between management involvement and the new product development roadmap that is used is not confirmed), it is found that culture, strategy and the ability of the personnel affect not only the “NPD roadmap” but also the quality of the new product development process.
Design of an autonomous flap for load alleviation

In this paper the design of an experimental, aeroelastic set-up for a novel load alleviation concept using trailing edge flaps is presented. These flaps are autonomous in terms of power supply, control and actuation, which is especially advantageous as complex wiring to connect the control surfaces is redundant. The flaps are free-floating and therefore vibrate in response to turbulence. The vibrations are converted to electricity through an electromagnetic device. The harvested energy is used to power both actuators and accelerometers.
Predicting the Texas Windstorm Insurance Association claim payout of commercial buildings from Hurricane Ike

Abstract. Following growing public awareness of the danger from hurricanes and tremendous demands for analysis of loss, many researchers have conducted studies to develop hurricane damage analysis methods. Although researchers have identified the significant indicators, there currently is no comprehensive research for identifying the relationship among the vulnerabilities, natural disasters, and economic losses associated with individual buildings. To address this lack of research, this study will identify vulnerabilities and hurricane indicators, develop metrics to measure the influence of economic losses from hurricanes, and visualize the spatial distribution of vulnerability to evaluate overall hurricane damage. This paper has utilized the Geographic Information System to facilitate collecting and managing data, and has combined vulnerability factors to assess the financial losses suffered by Texas coastal counties. A multiple linear regression method has been applied to develop hurricane economic damage predicting models. To reflect the pecuniary loss, insured loss payment was used as the dependent variable to predict the actual financial damage. Geographical vulnerability indicators, built environment vulnerability indicators, and hurricane indicators were all used as independent variables. Accordingly, the models and findings may possibly provide vital references for government agencies, emergency planners, and insurance companies hoping to predict hurricane damage.
Combining amenity with experience

Industry and government bodies have recommended augmentation of traditional production and marketing techniques as ways of increasing an industry’s profitability. This article values the amenity of the wine industry, a sensory experience that provides an array of opportunities both culturally to the tourist and economically to many regions across the world. Using the wine industry in the Central West region of New South Wales, Australia, we use input–output analysis to assess the economic impacts of this industry and the amenity hidden within. The industry not only provides jobs and commerce supporting local prosperity but also supplies a mixed production and consumption amenity from an agricultural product that meets the tourist’s leisure desire – an amenity that transcends from its origin in the vineyard to its destination at the table.
The relationship between transformational leadership and organizational health in Golestan province of Iran

1. Abstract This paper is carried out to determine the relationship between transformational leadership style and organizational health. The study attempted to determine if there is a difference in the teacher’s perception of the principal’s leadership style and school’s health. The population in this study consists of teachers in secondary schools in Golestan province of Iran. The researcher selected the cases by sample random sampling method. The result of reliability in pilot of study revealed that both instruments are reliable to administer the instrument, because the value of Cronbach’s Alpha for independent and dependent variable were high (.922, .915). In order to analyzing data the researcher has used descriptive statistics and a Correlation Pearson for related samples. The descriptive statistics provide a mean, range and standard deviation based on the results from both survey instruments.