Miracle-dz/UniFAR-FTUs huggingface dataset:
Signal restoration for a mass transport problem involving shear dispersion

An inverse problem associated with mass transport down a tube, when the flowing medium has a two-dimensional velocity profile, is examined. The inverse problem of estimation of a temporally varying concentration at one end of a long tube, from the measurement of the cross sectional average concentration at the opposite end, is solved. It is shown that this inverse problem, which is associated with shear dispersion, is an ill-posed deconvolution problem. Mollification is used to produce a well conditioned problem.
GREy ECONOMy AND PERSPECTIVES OF bULGARIAN bUSINESSES DEVELOPMENT IN ThE EU ACCESSION PERIOD

The paper suggests some empirical evidence on selected issues related to the influence of business environment factors and corruption practices anticipated as barriers to the successful finalization of the transformation of Bulgarian economy and its integration in the common European economic space. The analysis utilizes sample data from a questionnaire survey among 345 representatives of business organizations having ownership, managerial, or expert positions within the firm. During the survey, respondents expressed their opinions about the spread of grey economy as well as about various aspects of transactions underreporting practices in their branch, providing a ground for the evaluation of the impact of these phenomena on the perceived potential for private businesses development. Evidence from business people attitudes is provided in support of the opinion that restraining the corruption and bureaucratic barriers, provision of the higher public decision-making transparency, as well as improving law enforcement and judiciary system effectiveness are important conditions for domestic entrepreneurship stimulation and overall stable economic growth within the European economy.
On the brightness and velocity structure of solar granulation

A 45 min time series of two-dimensional spectra has been obtained with the Vacuum Tower Telescope at the Observatorio del Teide in Izana, Tenerife. Scans over the non-magnetic $\ion{Fe}{i}\,5576$ A line of a quiet granular field at disk center were taken simultaneously with a time series of broad band images. From the spectra intensity and velocity maps have been calculated at different line-depths. From the white light images granular shapes have been computed by means of an automatic image segmentation algorithm. A statistical analysis of the intensity and velocity distribution in the detected granular shapes has been carried out. Intensities and velocities are well correlated at low photospheric levels. In the higher photosphere the intensity pattern dissolves whereas the velocities show almost no variation within the probed height interval. The intensity excess of small granules dissolves at lower heights than that of larger ones. The intensity and velocity distribution within the granules depends on the granular size. In smaller structures the maximum intensities and velocities are located close to the granular barycenters whereas for larger granules the maxima are shifted towards the granular boundaries. The width of the transition zone between granules and intergranular lanes is independent on the granular intensity and is constant at approximately $0\farcs 5$. The time evolution of the granular pattern shows a clear dependence of the lifetime of structures on the spatial wavenumber. The e -folding times of the temporal coherences decrease according to a power law with an exponent of $\beta = 3/2$ which is incompatible with the Kolmogorov energy spectrum of homogeneous and isotropic turbulence and might be taken as a hint against the overall turbulent character of granular motions.
A Threshold Model of Gold Price Market on the Two Stock Markets: Study of the Taiwan and the Korea Markets

Under the factor of gold price market, the empirical results show that the dynamic conditional correlation (DCC) and the bivariate asymmetric IGARCH (1, 1) model is appropriate in evaluating the relationship of the Taiwan’s and the Korea’s stock markets. The empirical result also indicates that the Taiwan’s and the Korea’s stock markets is a positive relation. The average estimation value of correlation coefficient equals to 0.7207, which implies that the two stock markets is synchronized influence. Based on the threshold of gold price volatility, the empirical result also shows that the Taiwan’s and the Korea’s stock markets do have an asymmetrical effect. And the variation risk of the Taiwan’s and Korea’s stock market returns receives the influence of the gold market. Besides, under the good news, the error square item of the Taiwan’s stock market affects the variation risk of the Korea’s stock market. And the error square item of the Korea’s stock market affects the variation risk of the Taiwan’s stock market. Index Terms stock market returns, gold price, asymmetric effect, error square item, bivariate asymmetric IGARCH model
Effects of Replacing Soy Protein Concentrate with Fermented Soy Protein in Starter Diet on Growth Performance and Ileal Amino Acid Digestibility in Weaned Pigs

: For Exp. 1, 120 ((YorkshirexLandrace)xDuroc) weaned pigs (7.96±0.01 kg average initial BW, 21 days weaning) were used in a 28 d-growth assay to determine the effects of replacing soy protein concentrate (SPC) with fermented soy protein (FSP) in a starter diet (d 0 to 7) on the growth performance, apparent fecal amino acid digestibility and subsequent performance in weaned pigs. Dietary treatments included: i) FSP0 (basal diet; whey-skim milk powder-SPC based diet); ii) FSP5 (replacing SPC with 5% FSP); iii) FSP10 (replacing SPC with 10% FSP). Pigs were fed the phase I diet for 7 days, and then each group was fed a common commercial diet for 21 days to determine the effect of previous diet on subsequent performance. Average daily gain (ADG) from d 5 to 7 (linear effect, p = 0.01) and d 7 to 14 (linear effect, p 0.05). Average daily feed intake (ADFI) was higher in pigs fed with the 5% FSP diet than those fed with the other diets at d 0 to 2 post-weaning (quadratic effect, p = 0.05). Also, for the entire period of phase I (d 0 to 7), pigs consumed more 5% FSP diet compared to other treatments (quadratic effect, p = 0.03). Gain/feed (G/F) was not affected by dietary SPC or FSP in phase I and subsequent periods, but G/F from d 5 to 7 after weaning was improved linearly (p = 0.04) as dietary FSP level increased. Pigs fed with 10% FSP also improved G/F compared with those fed only SPC (p 0.05). Among essential amino acids, apparent digestibility of ileal arginine (Arg), lysine (Lys), methionine (Met) and phenylalanine (Phe) were improved as the FSP level increased (linear effect, p<0.1). Also, apparent ileal total essential, non-essential and total amino acid digestibilities were increased linearly (p<0.1). In conclusion, replacing SPC with fermented soy protein appeared beneficial in growth performance, N and amino acid digestibility during the early 7 days after weaning, and an equivalent effect showed on growth performance in subsequent period of 7 to 28 days after weaning.
Implementation of Utility Mining Algorithms to find Frequent Itemsets from Transactional Database

Mining high utility itemsets from a transactional database refers to the discovery of itemsets with high utility like profits. To overcome the problems of producing large number of candidate itemsets [4],[5], we are implementing three algorithms like Utility Pattern-Growth[2], Chernoff-based[3] and the Top-K Lossy Counting Algorithm[1]. UP Growth algorithm facilitates mining process by maintaining essential information in UP-Tree (Utility Pattern Tree). High-utility itemsets can be generated from UP-Tree efficiently with only two scans of original databases [2]. In case of Chernoff Bound Algorithm, user specifies a bound for better optimization of the dataset and to reduce the generated frequent itemsets [3]. In case of Top-K Lossy Counting Algorithm, the main parameter is frequency (quantity) of the item. Based on the frequency count and support of the item we generate unpromising items [1]. These algorithms produce small candidate itemsets unlike other algorithms that produce large candidate itemsets. These improve the mining performance in terms of execution time and space requirement. The objective of this work is to mine the frequent itemsets of a database using the above mentioned three algorithms. Based on the results, the most significant algorithm is judged.
Can a sheet‐like low‐velocity region form an elongated Large Igneous Province?

High‐resolution tomography of the lower mantle has revealed the existence of another chemically distinct region with low‐velocity and a sheet‐like structure beneath the western Pacific. On the other hand, Large Igneous Provinces (LIPs) sometimes have elongated shapes. If a sheet‐like upwelling reaches the Earth's surface while maintaining its shape, an elongated LIP may form. In order to test this hypothesis, we perform a series of experiments and investigate the stability of a buoyant sheet. The experimental results show that the buoyant fluid accumulates at the top of the sheet to form a buoyant cylinder. The gravitational instability divides the cylinder into several plume heads. We develop a model to explain the growth of the buoyant cylinder and the time scale until instability begins. Our model shows that a thin sheet‐like upwelling with a width of 200 km, a small density difference from the ambient mantle, 10 kg m−3, and a high supply rate of buoyant fluid, 0.1 m yr−1, can reach the Earth's surface while maintaining its shape. We thus infer that LIPs with an elongated shape can be generated by sheet‐like upwellings. The width of the observed sheet‐like low‐velocity region beneath the western Pacific is 500 km and is marginally sufficient to form an elongated LIP.
Corporate Governance and Audit Function: An Indian Perspective

A major part of the debate on corporate governance centers on the pivotal role played by auditors. If auditors’ report plays a significant role in corporate governance mechanism, engaging independent statutory auditors would certainly strengthen accountability. The present paper is motivated by such a viewpoint, as it develops a model to explain audit qualifications for select listed Indian companies. It also explores the oversight role of audit committees in enhancing audit quality. The findings provide evidence that the occurrence of audit qualifications is associated with return on assets and audit fees. The type of audit firm and accounting committee diligence do not affect auditors’ propensity to qualify their opinions. The paper concludes by proposing a case for reforms in the realm of reporting and auditing procedures.
Jóvenes y trabajo en contextos marcados por la incertidumbre

Desde diferentes enfoques teoricos y metodologicos se han examinado las dificultades que atraviesan los jovenes en su transito a la vida adulta en relacion al mundo del trabajo: inclusion laboral, desempleo y precariedad laboral, entre otras. El presente trabajo se inscribe en el Proyecto de Investigacion “Jovenes y Trabajo. Estudio de las Representaciones Sociales sobre inclusion laboral en los jovenes que finalizan la escuela secundaria, en el Gran Catamarca”. Su objetivo es comprender como los jovenes se adaptan o resisten trabajos informales y precarios. Para ello, desde una logica cualitativa, se indagaron jovenes que trabajan como cuidadores asistenciales, aplicando entrevistas en profundidad para relevar condiciones y modalidades del trabajo. Los jovenes padecen los efectos deficitarios de un “trabajo decente” y de poca calidad, medidos en funcion de la situacion de pobreza, las bajas remuneraciones y/o la situacion de empleo, incluida la incidencia de la informalidad y su repercusion en la subjetividad. El avance que se ofrece permite, en una primera instancia, merituar la importancia de abordar el complejo entramado de posicionamientos subjetivos e intersubjetivos, vinculados a la precarizada insercion de los jovenes en el ambito laboral.
Use of health technology in primary health care in approach to hypertension / Uso das tecnologias em saúde na atenção básica às pessoas em condições de hipertensão arterial sistêmica

Objetivo: ANALISAR A UTILIZACAO DAS TECNOLOGIAS EM SAUDE N O PROCESSO DE TRABALHO EMPREENDIDO PELOS PROFISSIONAIS DA ATENCAO BASICA NA ABORDAGEM A HIPERTENSA O ARTERIAL SIST EMICA. M e todos: PESQUISA QUALITATIVA, REALIZADO COM PROFISSIONAIS DE SEIS UNIDADES DA ESTRATEGIA DE SAUDE DA FAMILIA E DO NUCLEO DE APOIO A SA UDE DA FAMILIA DE UM MUNICIPIO MINEIRO. UTILIZOU-SE C OMO FONTE DE EVIDENCIAS A ENTREVISTA SEMIESTRUTURADA E, COMO TECNICA DE ANALISE DOS DADOS, A AN A LISE DE CONTE UDO. Resultados: OS RESULTADOS DEMONSTRAM QUE A ATENCAO AOS PORTADORES DE HAS AINDA E M EDICO-CENTRADA, BASEADA NA DEMANDA ESPONTÂNEA E NA UTILIZACAO DE TECNOLOGIAS DURAS. OS PROTOCOLOS AINDA NAO FORAM CONSIDERADOS INSTRUMENTOS NECESSARIOS PARA ORGANIZACAO DA ASSISTENCIA E AS TECNOLOGIAS RELACIONAIS NECESSITAM DE SEREM FORTALECIDAS PARA REALIZAR O CUIDADO CENTRADO NO USUA RIO. Conclus o es: E NECESSARIO EFETIVAR OS PRINCIPIOS DO SISTEMA UNICO DE SAUDE E A UTILIZACAO DAS TECNOLOGIAS EM SAUDE ADEQUADAS PARA CADA ESTACAO DO CUIDADO.
Inventory Management with Purchase Order Errors and Rework

In a retail distribution center, fulfillment of purchase orders (POs) occasionally incurs errors retailers can correct through rework. PO fulfillment errors, or PO errors, include “ticket errors,” whereby incorrect information (e.g., selling price) is put on tickets attached to some PO items. These errors are costly and different from random yield errors. This paper combines empirical and analytical methods to study the influence of PO errors on retailers’ order policy and cost. Using data from a large retail chain, we determine key properties of these errors, in particular, how they vary with order complexity, including average order quantity per SKU and number of SKUs per PO. We propose one deterministic and one stochastic (Q,R) inventory model for POs with a single SKU that account for these correctable errors. We study the deterministic model analytically, and the stochastic model numerically, with parameters estimated from real retail data. We compare the performance of our adjusted order policy with standard policies that ignore correctable PO errors, and provide qualitative guidance in identifying SKUs more prone to these errors.
The Effect of Floral Nectar Feeding on the Parasitoid Anagrus spp. (Hymenoptera: Mymaridae)

Conventional agricultural systems are characterized by a reduction in non-crop resources, which decreases natural enemy populations and increases pest abundance. Floral resource provisioning (FRP) is one method of increasing natural enemy populations in agricultural systems by providing a non-crop food source. Nectar feeding can increase the longevity, fecundity, and abundance of natural enemies, thus increasing their effectiveness in controlling pest populations. Many studies have examined the effect of FRP on parasitoid natural enemies in the field, but few determine whether the flowers used actually benefit the target wasp in a controlled setting. This study examined whether nectar feeding increases the longevity of Anagrus spp. wasps, which parasitize Western grape leafhoppers (Erythroneura elegantula) in California vineyards. Using wasps obtained from parasitized leafhopper eggs in Davis, CA, I isolated Anagrus spp. in vials with flowers from Ammi majus, Daucus carota, or Phacelia tanacetifolia, 50% honey solution, or just water. I found that wasps in the D. carota and honey treatments, which averaged 1.3 and 1.6 days, lived significantly longer than those in the P. tanacetifolia and control treatments, which all died within 24 hours. This confirms that nectar feeding can increase Anagrus spp. lifespan, and that certain flowers have a greater effect on lifespan than others, likely due to differences in morphology, nectar composition, and volatiles. This is important information in choosing flowers to implement and explaining the effectiveness or ineffectiveness of previous FRP designs.
Optimization of the Performance of Single-Phase Capacitor-Run Induction Motor

The aim of the study was to suggest optimal solution for the impact of harmonics on the performance of Capacitor-Run Motor (CRM), the most commonly used single-phase motor. Therefore, investigations were carried out over the entire slip from no-load condition up to the locked-rotor condition, for harmonics of various orders in the case of using Pulse-Width Modulation (PWM) speed control. The investigations gave the ability to optimize the performance of CRM by choosing the appropriate parameters of the PWM inverter. Mathematical model for CRM supplied from voltage source contained harmonics was presented. The work was conducted by using a digital computer simulation (MATLAB software).
Collisional modelling of the debris disc around HIP 17439

We present an analysis of the debris disc around the nearby K2 V star HIP 17439. In the context of the Herschel DUNES key programme, the disc was observed and spatially resolved in the far-IR with the Herschel PACS and SPIRE instruments. In a previous study, we assumed that the size and radial distribution of the circumstellar dust are independent power laws. There, several scenarios capable of explaining the observations were suggested after exploring a very broad range of possible model parameters. In this paper, we perform a follow-up in-depth collisional modelling of these scenarios to further distinguish between them. In our models we consider collisions, direct radiation pressure, and drag forces, which are the actual physical processes operating in debris discs. We find that all scenarios discussed in the first paper are physically reasonable and can reproduce the observed spectral energy distribution along with the PACS surface brightness profiles reasonably well. In one model, the dust is produced beyond 120 au in a narrow planetesimal belt and is transported inwards by Poynting-Robertson and stellar wind drag. Good agreement with the observed radial profiles would require stellar winds by about an order of magnitude stronger than the solar value, which is not confirmed – although not ruled out – by observations. Another model consists of two spatially separated planetesimal belts, a warm inner and a cold outer one. This scenario would probably imply the presence of planets clearing the gap between the two components. Finally, we show qualitatively that the observations can be explained by assuming the dust is produced in a single, but broad planetesimal disc with a surface density of solids rising outwards, as expected for an extended disc that experiences a natural inside-out collisional depletion. Prospects of distinguishing between the competing scenarios by future observations are discussed.
Social-spatial structure of Beijing: a spatial-temporal analysis

In the past couple of post-reform decades of rapid urban growth of Chinese cities, Beijing experienced dramatic spatial and socio-economic transformation. This study aims to examine the evolution of Beijing’s social-spatial structure in the transforming process over the past 20 years. We first collect and process Beijing’s socio-demographic variables at the level of sub-district in three years between 1990 and 2009. Then a two-step spatial clustering approach is taken for spatial data mining of the spatial structures of social areas in the three time periods. Results are visualised in GIS. Finally, the interpretation of the analysis result is provided, followed by a discussion of policy implications for the development of a socially sustainable municipality.
The polymorphism of the HERG gene responsible for the autosomal dominant long-QT syndrome

The long-QT syndrome (LQTS) is caused by mutations on several genes, all of which encode cardiac ion channels. The LQTS is a primary electrical disease which is characterised by prolongation of the corrected QT (QTc) interval on the surface electrocardiogram (ECG), sudden death from cardiac arrhythmias, torsade de pointes, and ventricular fibrillation. The identification of three of the genes associated with congenital long-QT syndrome (cLQTS) between 1995 and 1996 [1, 2], and the awareness that they all encode cardiac ion channels involved in the control of repolarisation, prompted the concept that cLQTS may represent a distinct model for studying genotype-phenotype correlation in congenital arrhythmogenic diseases. There has been heightened interest in correlation since the mutations identified in these genes cause either loss or gain of function, leading to reduced outward potassium current or excess of late inward sodium current [1, 2]. Up to date, five LQTS genes have been identified, including the potassium channel gene HERG (LQT2) [3], which encodes the a-subunit of the channel that underlies the rapidly activating delayed rectifier potassium current IKr (fig. 1) and KCNQ1 (LQT1) [4], which encodes the slowly activating delayed rectifier potassium channel IKs. The majority of the mutations have been identified in the core region, constituted by transmembrane domains and pore of KCNQ1 and HERG. However, mutations in the Nand C-terminal regions have also been reported [5–8]. The summary of the genes associated with LQTS is shown in table 1. Clinically, the congenital long-QT syndrome exists in two forms, namely Jervell and Lange-Nielsen syndrome and Romano-Ward syndrome. The Jervell and Lange-Nielsen syndrome is a cardioauditory syndrome that is inherited by an autosomal recessive pattern and is associated with congenital deafness [9]. The Romano-Ward syndrome, which is more common, is inherited in an autosomal dominant pattern and is associated with normal hearing [10, 11]. The two syndromes usually manifest in childhood or adolescence [12]. In this review, we will focus on the HERG gene mutations and summarise current information on genotype-phenotype correlation in the LQT2.
Smart Prototyping Techniques for UHF RFID Tags: Electromagnetic Characterization and Comparison with Traditional Approaches

Over the last few years, the active and growing interest in Radiofrequency Identiflcation (RFID) technology has stimulated a conspicuous research activity involving design and realization of passive label-type UHF RFID tags customized for speciflc applications. In most of the literature, presented and discussed tags are prototyped by using either rough-and-ready procedures or photolithography techniques on rigid Printed Circuit Boards. However, for several reasons, such approaches are not the most recommended, in particular they are rather time-consuming and, moreover, they give rise to low quality devices in one case, and to cumbersome and rigid tags in the other. In this work, two alternative prototyping techniques suitable for cost-efiective, time-saving and high-performance built-in-lab tags are introduced and discussed. The former is based on the joint use of ∞exible PCBs and solid ink printers. The latter makes use of a cutting plotter to precisely shape the tag antenna on thin copper sheets. Afterwards, a selection of tags, designed and manufactured by using both traditional and alternative techniques, is rigorously characterized from the electromagnetic point of view in terms of input impedance and whole tag sensitivity by means of appropriate measurement setups. Results are then compared, thus guiding the tag designer towards the most appropriate technique on the basis of speciflc needs.
High Stakes Testing Literature Review and Critique

Standardized testing has been long established in most of the schools in United States. States have attached "high stakes" to tests as a response to the federal law NCLB. Under this law, schools had to develop or alter their assessments which are administered to gauge school progress. While many agree that high stakes testing has an impact on students; studies have been conducted to vet whether such impact has propitious or harmful outcomes. In this paper, I review and critique the literature on high stakes testing coupled with a close scrutiny of the research methods utilized in the articles under review.