Miracle-dz/UniFAR-FTUs huggingface dataset:
Parametric covariance dynamics for the nonlinear diffusive Burgers equation

Abstract. The parametric Kalman filter (PKF) is a computationally efficient alternative method to the ensemble Kalman filter. The PKF relies on an approximation of the error covariance matrix by a covariance model with a space–time evolving set of parameters. This study extends the PKF to nonlinear dynamics using the diffusive Burgers equation as an application, focusing on the forecast step of the assimilation cycle. The covariance model considered is based on the diffusion equation, with the diffusion tensor and the error variance as evolving parameters. An analytical derivation of the parameter dynamics highlights a closure issue. Therefore, a closure model is proposed based on the kurtosis of the local correlation functions. Numerical experiments compare the PKF forecast with the statistics obtained from a large ensemble of nonlinear forecasts. These experiments strengthen the closure model and demonstrate the ability of the PKF to reproduce the tangent linear covariance dynamics, at a low numerical cost.
Coronary Angiography. Analysis of Quality Image and Radiation Dose.

SUMMARY Background Multidetector row computed tomography coronary angiography (MDCT-CA) has become a useful diagnostic tool for the direct quantification of coronary stenosis, for identifying coro- nary anomalies and for the assessment of coronary artery bypass grafts. Despite its clinical value has been questioned due to the effective radiation dose (ERD) received by each pa- tient, radiation exposure is similar to other studies. However, different strategies are per- manently tested in order to reduce the ERD maintaining adequate and diagnostic image quality. Objectives To determine the image quality and effective radiation dose (ERD) of prospective electro- cardiogram-gated multidetector row computed tomography coronary angiography (PMDCT- CA) (the x-ray beam is turned on for only a short portion of diastole) compared to retrospec- tive ECG gating (RMDCT-CA) (the x-ray beam is turned on throughout the cardiac cycle) and a preliminary approach of its diagnostic accuracy compared to digital invasive coronary angiography (CA). Material and Methods Fifty consecutive patients with suspected coronary artery disease and sinus rhythm were evaluated with PMDCT-CA and compared to a control group who underwent RMDCT-CA. Image quality was analyzed by two reviewers. Interobserver concordance and ERD were determined. The diagnostic accuracy of PMDCT-CA compared to CA to detect coronary artery stenosis > 50% was assessed in 30 patients. Results There were no significant differences in the image quality between both groups. Agreement between the reviewers for segment image quality scores was k = 0.92. Mean ERD was 3.5 mSv for PMDCT-CA compared to 9.7 and 12.9 mSv for RMDCT-CA with and without tube current modulation, respectively. Individual analysis including all segments showed that the sensitivity, specificity, positive predictive value and negative predictive value of PMDCT- CA for the detection of coronary stenosis were 94.74%, 81.82%, 90% and 90%, respectively. Conclusion Our initial experience demonstrated that use of PMDCT-CA has similar subjective image quality scores with a substantial reduction ERD when compared to use of RMDCT-CA in a selected population.
Égalisation et synchronisation utilisant un tatouage comme signal de référence

We present a method for adaptive equalisation and synchronisation based on the use of a watermark as reference signal. Unlike traditional adaptive methods, in which transmission of useful information is interrupted periodically to transmit training sequences, the watermark is continuously transmitted through the communication channel and reaches the receiver at the same time as the signal that carries useful information. If the original watermark is known to the receiver, the coefficients of the equalisation filter may be continuously adapted by analysing the received watermark in order to reverse channel effects on the transmitted signal.
Energetics of food selection by the herbivorous parrotfish Sparisoma radians: roles of assimilation efficiency, gut evacuation rate, and algal secondary metabolites

Experiments were conducted to investigate the effect of plant energy content and the presence of secondary metabolites on the assirmlation efficiency. ahmentary tract evacuation rate, and feeding rate of the bucktooth parrotfish Sparisoma radians. Alimentary tract evacuation rate was significantly greater (ca 2 . 5 ~ ) when the fish fed on the relatively energy-poor calcareous green alga Halimeda incrassata than on the seagrass Thalassia testudinum. The greater evacuation rate of H. incrassata provided the fish the capacity to increase consumption rate to compensate for low food energy content. However, due to unpalatable secondary chemical metabolites present in H. incrassata. actual biomass consumed per unit time was less than for T testudinum. Experiments using T testudinum blades coated with H. incrassata organic crude extract showed that the secondary metabolites had no effect on the fish's assimilation efficiency or gut evacuation rate. The increased rate of H. incrassata evacuation is more than sufficient to allow compensation for lower gross energy content. S. radians can increase evacuation rate sufficiently to allow compensation for differences in available energy over the normal range for most plants consumed in nature. Studies of herbivorous fish foraging and feeding energetics must consider differences in alimentary tract evacuat~on rate and feeding rate, and the effects of secondary metabolites, in addition to the assimilation efficiency, structural defense and relative plant abundance factors usually considered.
Cross‐regional prediction of long‐term trajectory of stream water DOC response to climate change

There is no scientific consensus about how dissolved organic carbon (DOC) in surface waters is regulated. Here we combine recent literature data from 49 catchments with detailed stream and catchment process information from nine well established research catchments at mid‐ to high latitudes to examine the question of how climate controls stream water DOC. We show for the first time that mean annual temperature (MAT) in the range from −3° to +10° C has a strong control over the regional stream water DOC concentration in catchments, with highest concentrations in areas ranging between 0° and +3° C MAT. Although relatively large deviations from this model occur for individual streams, catchment topography appears to explain much of this divergence. These findings suggest that the long‐term trajectory of stream water DOC response to climate change may be more predictable than previously thought.
PRODUCTION AND EVALUATION OF MICROBIAL PLASTIC FOR ITS DEGRADATION CAPABILITIES

Environmental biotechnology has the intention of increasing sustainability of production process by employing biological systems and human life. In the present study, three different types of plastics were used to check their degradability by using degradability test. The microorganism isolated from oil contaminated soil was found to utilize the edible oil (coconut oil) as a carbon source. These microorganisms were used for the further investigation to produce plastic from the granules, its durability and degradability is in progress. Sudan black staining of this microorganism reveals the presence of PHA granules inside the microorganism. These granules are after extraction useful to produce the plastic film assuming to be used as one of alternatives of biodegradation plastic. TiO2 powders are used for the preparation of microbial plastic. Check their degradability at same time and same species in MMSB medium during these study microbial plastic is highly degradable compare to starch based plastic and polythene plastic.
Study of ODE limit problems for reaction-diffusion equations

In this work we study ODE limit problems for reaction-diffusion equations for large diffusion and we study the sensitivity of nonlinear ODEs with respect to initial conditions and exponent parameters. Moreover, we prove continuity of the flow and weak upper semicontinuity of a family of global attractors for reaction-diffusion equations with spatially variable exponents when the exponents go to 2 in \(L^{\infty}(\Omega)\) and the diffusion coefficients go to infinity.
Flow anisotropy in sheared fractures with self-affine surfaces

The hydraulic behavior of fractures is important for understanding geothermal reservoirs. Thus experimental and numerical analysis of fractures is important. The roughness of the surfaces of natural fractures has an effect on their permeability. Analytical methods fail to predict this effect in different scales. Here the hydraulic properties of rough fractures are investigated with numerical methods. The fracture model consists of two identical self-affine surfaces, sheared element wise against each other. The heterogeneous aperture is represented by hydraulic conductivity in the numerical model. We use the finite element method in 2D for simulating the fluid flow through the fracture model. Fluid flow is forced with Dirichlet boundary conditions parallel and perpendicular to the shearing direction. The calculated mean flow through all investigated fractures show an anisotropic behavior, dependent on the orientation of the pressure gradient. The flow parallel (perpendicular) to the shearing direction is increased (enhanced). The effect of channeling perpendicular to the direction is the reason for the anisotropy in fluid flow.
Antibacterial and Phytochemical Properties of some Nigerian Medicinal Plants on Salmonella typhi and Salmonella paratyphi Isolated from Human Stool in Owo local Government, Ondo State , Nigeria

Medicinal plants are geared toward the development of the new antibiotics and the use of the medicinal plant in the treatment of typhoid fever. Typhoid fever is a bacterial infection caused by Salmonella species namely, Salmonella typhi and Salmonella paratyphi. The disease is an important menace to public health in Nigeria and other developing country. The main objective of the study was to test the potency of some Nigerian medicinal plants against Salmonella typhi and Salmonella paratyphi and to determine the phytochemical constituents of the plants’ extracts on test organisms isolated from infected human stool in Owo Local Government. The plants were obtained from Oke-Ako in Ikole Local Government of Ekiti State, Nigeria and prepared for extraction with four extracting medium with a simple distillation procedure. Test organisms were
Prioritization of Program Elements Based on TheirTesting Requirements

Even after thorough testing of a program, usually a few bugs still remain. These residual bugs are usually uniformly distributed throughout the code. It is observed that bugs in some parts of a program can cause more frequent and more severe failures compared to those in other parts. It should, then be possible to prioritize the statements, methods and classes of an object-oriented program according to their potential to cause failures. Once the program elements have been prioritized, the testing effort can be apportioned so that the elements causing most frequent failure are tested more. Based on this idea, in this paper we propose a program metric called the influence of program elements. Influence of a class indicates the potential of class to cause failures. In this approach, we have used the intermediate graph representation of a program. The influence of a class is determined through a forward slicing of the graph. Our proposed program metric can be useful in applications such as coding, debugging, test case design and maintenance etc.
Avaliação de Técnicas de Transferência de Aprendizado em CNNs

As redes neurais convulsionais (CNNs) demandam uma quantidade consideravel dados para obter desempenho satisfatorio, estes dados muitas vezes podem ser de dificil obtencao ou de alto custo. Nesse com texto, a tecnica de transferencia de aprendizado tem sido utilizada com sucesso para reduzir estes dados e, muitas vezes, aumentam o desempenho final da rede. O objetivo deste trabalho e comparar diferentes tecnicas de transferencia de aprendizado e analisar os resultados obtidos em cada uma delas. Os resultados mostram que o retreinamento apenas das camadas finais aumenta o desempenho da rede em 2.5 vezes em comparacao com o retreino completo, e 6.54 vezes em comparacao com o treinamento puro.
The teaching of corporate construction management

This paper describes the case method approach as a supplementary tool for teaching Corporate Construction Management – a core subject for the Master of Construction Management degree at Melbourne School of Design. The case method of instruction has been found to be an extremely successful method of learning at top business schools and is introduced here to develop case analysis skills. The aim of this paper is to examine the effectiveness of the course design and determine the student and instructor attributes that may lead to better learning outcomes. Four cases were selected to reflect the issues covered in the lectures and to present a mix of commercial, financial and operational concerns. Although the students were initially reluctant to adequately prepare for case discussion, their attitude changed when they became more familiar with the case method. The role of the instructor in case teaching is not to prescribe a solution but to encourage the students to take ownership of the discussion and to guide the students in their search for an answer. The effectiveness of the case approach in facilitating student learning and developing students’ ability to analyse complex issues in construction management is discussed.
Effect of separate and mixed rearing according to sex on fattening performance and carcass characteristics in Japanese quails (Coturnix coturnix Japonica)

objective of this study was to investigate the effect of sex of Japanese quails (Coturnix coturnix Japonica) on fattening performance and carcass characteristics. The quail chicks were divided into three groups, made up of 96 males or 92 females or 36 individuals of each sex, resulting in a total of 256 chicks. The chicks in the groups were raised using the same feeding regime (24% CP, 2900 kcal/kg ME) and housing conditions for 42 days. There were significant (P<0.01) differences between male and female groups in weekly live body weight (lbw) gain values on day 35, in average live body weight gain on days 35 and 42, and in lbw gain values between days 14 and 42. Slaughter weight and liver weight were significantly different between groups (P<0.01). The differences between the two sex in mixed group in average body weight gain, average lbw on days 35 and 42, average lbw gain, lbw gain between days 14 and 42, slaughter weight, hot carcass yield, and liver weight were found significant (P<0.01). Lbw, lbw gain, feed consumption, slaughter weight, hot carcass yield, weights of heart, liver and giblets were higher in female quails while feed conversion rate was lower. As a result, these data suggest that separate raising of male and female Japnese quails might be more advantageous.
Particle Swarm Optimizer Arranged in Two-Dimensional Array

This study proposes a Particle Swarm Optimization with Map Structure (PSOMS). All particles of PSOMS are connected to adjacent particles by neighborhood relation, which dictates the topology, of the 2-dimensional map. Each particle is updated depending on the neighborhood distance between it and a winner, whose function value is best among all particles. Simulation results show the searching e ciency of PSOMS.
The R ole of Identity in Intra- and Inter-Group Bargaining in the Ultimatum Game

This paper investigates the role of intraand inter-group effects on the ultimatum game. The paper presents the identity theory as a framework for analyzing intraand intergroup bargaining behavior on the ultimatum game. An experimental ultimatum game was conducted between participants from Washington and Lee University and Virginia Military Institute. The results presented shows evidence of ultimatum bargaining behavior being influenced by in-group favoritism, along with some evidence of out-group hostility. The results also provide possible implications of the effect of testosterone levels. This article is available in Undergraduate Economic Review: http://digitalcommons.iwu. edu/uer/vol4/iss1/6 1 Undergraduate Economic Review A Publication of Illinois Wesleyan University
NEOCATASTROPHISM AND THE MILKY WAY ASTROBIOLOGICAL LANDSCAPE

SUMMARY: The number and distribution of habitable planets in the Milky Way is one of the foremost problems of contemporary astrobiological research. We investigate the efiects of applying general neocatastrophic paradigm to the evolution of the Galactic Habitable Zone. In this paper, we investigate the limits of simple, 1dimensional astrobiological models, and consider the role of regulation mechanisms in shapening the "astrobiological landscape". We show that the transition from predominantly gradualist to predominantly (neo)catastrophist history of our Galaxy leads to the build-up of large-scale correlations between habitable sites, ofiering possible keys to such important problems as Carter’s "anthropic" argument and Fermi’s paradox. In addition, we consider the possibilities for extending the present class of models into spatially realistic 3-dimensional case via probabilistic cellular automata.
Effect of Varieties and Tuber Sizes on Losses of Ascorbic Acid and Phenol Content of Potato Tubers Stored Under Ambient Conditions

Effect of Varieties and Tuber Sizes on Losses of Ascorbic Acid and Phenol Content of Potato Tubers Stored Under Ambient Conditions The Investigation was conducted by keeping healthy potato tubers of three different sizes for each genotype in hessian cloth bag at room temperature in four replications. The experiment was carried out to evaluate the effect of varieties and tuber sizes on the ascorbic acid and phenols during the storage period of three months. From the findings, it was concluded that the ascorbic acid content and phenolic content decreased with increasing storage period. The maximum ascorbic acid and phenols were noticed in Kufri Bahar and minimum in Kufri Pushkar. Among the sizes, ascorbic acid had positive, while the phenol content had negative correlation with tuber size.
The anarchic audience: a case study

The new media environment has brought with it increasing dissatisfaction with the information which quantitative analysis of audience numbers gives to those most interested - and this includes program makers, their bosses (be they in commercial or public broadcasting), and the advertisers. For all these interest groups conventional ratings methodologies have allowed them to assess the size of the audience they can reach. However numbers on their own haven't been able to tell them whether the audience members physically present for a broadcast are actually registering the content in a meaningful way. This paper describes a qualitative study of the radio audience in Perth, Western Australia which trialled a new methodology to allow the listeners themselves to be heard. In the process it also tested some of the assumptions that media professionals make about listener reaction to programs. The study indicates that radio listeners. no less than television viewers or Internet users, are anarchic and untameable, and furthermore have a far more sophisticated grasp of the medium than planners and programmers may give them credit for.
The LDA Topic Model Extension Study

This article is a literature review that introduces the status quo of research on the LDA in recent years. The topic model of LDA (Latent Dirichlet Allocation) was proposed by D.M. Blei in 2003, which obtained three Bayesian probability model on the extension of the probability of latent indexing (probabilistic Latent Semantic Indexing, pLSI ). It consists of the documents, topics and words, which mining implicit subject of the statistical probability model from a semantic document by modeling. In this article, researchers briefly introduce the LDA topic model and the documents generation process, but also introduce several the extended model based on LDA that has a mainstream representative part and advancement, sum up the research methods of extension of the study based on LDA, show the results in the field of study, and give personal suggestions to the future study of topic model based on LDA. KeywordsLDA; Text Retrieval; Semantics Mining; Topic Model; Document Generation
Simulation of 2-dimensional flows in Modelica with the Casacaded Digital Lattice Boltzmann Method

This paper deals with the implementation of a general methodology for modeling two-dimensional fluid flows in Modelica applying the Cascaded Digital Lattice Boltzmann Method. This approach models fluid flow as collective dynamics of fictitious particles on the nodes of a regular lattice. The various elements needed for simulation are described in Modelica and generic test cases are set up. The method is able to deal with simple scenarios where the powerful capabilities of advanced CFD tools are not needed.
Effect of Drip Irrigation and Nitrogen, Phosphorus and Potassium Application Rates on Tomato Biomass Accumulation, Nutrient Content, Yield, and Soil Nutrient Status

The majority of Florida’s tomatoes are grown on sandy soils, having low water and nutrient holding capacities. Tomato growers have to supply large quantities of fertilizer in order to supply all the nutrients required for satisfactory growth. Drip irrigation provides many advantages including a reduction of water use and efficient fertilizer management compared with other irrigation systems. Studies of fertigated tomato grown on plastic mulch covered beds in fall 2013, spring 2014 and fall 2014 were conducted to quantify the effect of different fertigation rates on tomato biomass accumulation and fruit yields; and the measurement of N, P and K concentrations and distribution pattern in the soil at different sampling positions and depths during the whole season in Florida on sandy soils. The experimental results indicated, the application of more fertilizer application than the recommended dose does not increase the tomato fruit yield significantly while it had led to luxurious consumption of nutrients and excessive biomass accumulation by tomato plants Drip fertigation kept the nutrients at optimum concentration in the crop root zone within the top 0-30 cm soil depth. Additional research is needed to quantify nutrient leaching below the crop root zone.
L-CARNITINE ADMINISTRATION PREVENTS OXIDATIVE STRESS IN HIGH FRUCTOSE-FED INSULIN RESISTANT RATS

SUMMARY Rats fed a high fructose diet display disturbances in insulin action and form an animal model of insulin resistance. We investigated the impact of L-carnitine administration (300 mg/kg body weight/day, i.p. in 0.89% saline) on lipid peroxidation and antioxidant potential in blood of fructoseinduced insulin resistant rats. Oral glucose tolerance test was performed before sacrifice and biochemical analyses were done in blood. Fructose-fed rats showed increased levels of peroxidation markers (p<0.05) such as thiobarbituric acid reactive substances, lipid hydroperoxides, and conjugated diens in plasma. Increased levels of glucose, fructose, insulin, free fatty acids and triglycerides (p<0.05) were observed in circulation. Homeostatic model assessment (HOMA) values were higher as compared to control rats. Inadequate enzymatic (superoxide dismutase, catalase, glutathione peroxidase, and glutathione-Stransferase) and non-enzymatic (reduced glutathione, vitamin C and vitamin E) antioxidant status was observed in fructose-fed rats. The observed biochemical abnormalities associated with fructose feeding were brought to near-normal when simultaneously treated with L-carnitine. The effect of Lcarnitine on the oxidant-antioxidant balance can be attributed to the metabolic as well as antioxidant effects of L-carnitine.