Miracle-dz/UniFAR-FTUs huggingface dataset:
Neural network stochastic simulation applied for quantifying uncertainties

Generally the geostatistical simulation methods are used to generate several realizations of physical properties in the sub-surface, these methods are based on the variogram analysis and limited to measures correlation between variables at two locations only. In this paper, we propose a simulation of properties based on supervised Neural network training at the existing drilling data set. The major advantage is that this method does not require a preliminary geostatistical study and takes into account several points. As a result, the geological information and the diverse geophysical data can be combined easily. To do this, we used a neural network with multi-layer perceptron architecture like feed-forward, then we used the back-propagation algorithm with conjugate gradient technique to minimize the error of the network output. The learning process can create links between different variables, this relationship can be used for interpolation of the properties on the one hand, or to generate several possible distribution of physical properties on the other hand, changing at each time and a random value of the input neurons, which was kept constant until the period of learning. This method was tested on real data to simulate multiple realizations of the density and the magnetic susceptibility in three-dimensions at the mining camp of Val d'Or, Quebec (Canada).
Genetic and mutational analysis of yeast STUbLs reveals global trends and unique functions

Author(s): Gilmore, Steve Kaylor | Abstract: SUMO-Targeted Ubiquitin Ligases (STUbLs) are evolutionarily conserved from yeast to eukaryotes and contribute broadly to the maintenance of genome integrity. The budding yeast, Saccharomyces cerevisiae, contains two distinct STUbLs, the Slx5-Slx8 heterodimeric complex (Slx complex), and Uls1. These enzymes use SUMO-Interacting Motifs (SIMs) to identify targets and a Really Interesting New Gene (RING) domain to ubiquitinate them. In this work, the gene encoding the lesser-characterized S. cerevisiae STUbL, ULS1, was characterized for chromatin-related functions. In addition, a mutational and complementation analysis of yeast STUbLs was carried out using RING and SIM mutants and the human STUbL, RNF4. Here we report that ULS1 contributes to DNA silencing at the HMR locus, within the cryptic mating-type loci, and at the 25S rDNA gene. ULS1 suppresses the formation of Gross Chromosomal Rearrangements (GCRs), but is not involved in the DNA damage response to ultra-violet (UV) radiation or HydroxyUrea (HU). However, ULS1 caused increased sensitivity to the drug camptothecin (CPT), and this sensitivity was dosage-dependent. The mutational analysis definitively shows that STUbLs require an intact RING domain for their in vivo chromatin functions, whereas the SIM domains of Slx5 are dispensable for its in vivo functions. Finally, RNF4 was able to complement both the DNA damage response and DNA silencing defects found in slx8[Delta] mutants
SOIL CHEMICAL VARIABILITY IN SANDY USTALFS IN SEMIARID

Extreme variability in millet stands over very short distances (2 to 20 m) poses a major constraint to grain production in Niger and other Sahelian countries. This study was undertaken to examine the chem ical properties of associated productive and unproductive soils. Soil samples (0 to 15 cm) were taken at 26 sites along a 15-m transect between a productive and an unproductive region in t, field of the Labucheri soil series (sandy, siliceous, isohyperthermic Psammentic Paleustalf). Chemical properties of soil profiles at three locations along the transect were also examined. Unproductive soils were associated with low (<4.5) pH, high Al + H sat­ uration of the cation exchange sites, and decreased amounts of exchangeable K, Ca, and Mg when compared with productive sites. These chemical properties may result in Al or Mn toxicity or deficiencies of K, Ca, Mg, and P and appear to account for the variability that ex'its in millet stands, All soils become acidic at depiths _s30 cm. We propose a scheme for the genesis of these highly variable, acidic soils in this semiarid region.
Deconstructing Scholarship An Analysis of Research Methods Citations in the Organizational Sciences

Understanding the variety of different ways in which citations contribute to scholarly writing is an important part of the tacit knowledge possessed by experienced researchers. There is, however, little published work to help novice researchers develop this aspect of their craft. To address this issue, we present a framework of citation usage derived from inductive analysis of a selection of published articles and emphasize its relevance for research methods topics. This framework provides a template for structuring citation usage in academic research and a useful developmental tool for novice researchers.
Effects of brown coal derived materials on pH and electrical conductivity of an acidic vineyard soil

Humic substances derived from brown coal (lignite) are a rich source of acidic carboxylic and phenolic groups which can provide reactive sites for cation exchange, bind and sequester phytotoxic elements, increase pH buffering of soils, and promote the penetration and retention of calcium in the soil as well as improve nutrient transport to plants. Potassium humate (K-humate) is obtained by alkaline extraction of Victorian brown coal and is used commercially as a soil conditioner. Calsulmag (CSM) is an alkaline material rich in calcium and magnesium which is obtained from power station fly ash and used as a substitute for lime. OMNIA Specialities Australia Pty. Ltd supplied samples of these materials. In this paper, the effects of K-humate and K-humate+CSM on selected chemical properties of an acidic vineyard soil were investigated under field conditions. Results indicate statistically significant increases (P <0.001) in soil pH, and electrical conductivity (EC) relative to the control. The K-humate+CSM treatment demonstrated the most beneficial effects.
Musicians’ perceptions and experiences of using simulation training to develop performance skills

Simulation has been applied as a tool for learning and training in sports, psychology and medicine for some time, but its current use and potential for training musicians is less well understood. The aim of this study was to explore musicians’ perceptions and experiences of using simulated performance environments. Nine conservatory students performed in two simulations, each with interactive virtual elements and vivid environmental cues: a recital with a virtual audience and an audition with virtual judges. Qualitative data were collected through a focus group interview and written reflective commentaries. Thematic analysis highlighted the musicians’ experiences in terms of (1) their anticipation of using the simulations, (2) the process of performing in the simulations, (3) the usefulness of simulation as a tool for developing performance skills and (4) ways of improving simulation training. The results show that while simulation was new to the musicians and individual levels of immersion differed, the musicians saw benefits in the approach for developing, experimenting with and enhancing their performance skills. Specifically, the musicians emphasised the importance of framing the simulation experience with plausible procedures leading to and following on from the performance, and they recognised the potential for combining simulation with complementary training techniques.
Usage rate segmentation: enriching the US wine market profile

The purpose of this research is to enrich our knowledge of the US wine market and provide insights into how usage rate segmentation can be enhanced by select innovative perspectives of current offerings. Data were collected through a 15-minute online survey of 910 US wine drinkers randomly selected from a panel of consumers. It was found that the “super core” segment not only drank wine more frequently, but also were more likely to drink other types of alcohol presented (beer, distilled spirits, and ready-to-drink cocktails), and at a greater frequency, “at least once a week” and “about once a week”, than “marginal” drinkers. Differences between usage rate segments existed between sex and age generations. Female millennial “super core” consumers would increase wine consumption if the number of calories were reduced to fewer than 80 per 5 oz serving. Practical implications for a winery or wine retailer might include the potential to add these beverages to their product offering or bundling these beverages to create packages (allowing for mass customization, which is used often in retail) and appropriately marketing these offerings to their customers. Changes that may invoke a positive response are wine made from “sustainably farmed” or “naturally farmed” grapes, and certified carbon-free wine. From an originality viewpoint, this study is the first to investigate how usage rate segmentation can be enriched by means of variable cross-extension and examination.
The Vulnerability of a City - Diagnosis from a Bird’s Eye View

When the tsunami in the Indian Ocean on 26 December 2004 hit the city of Banda Aceh on the island of Sumatra, Indonesia, neither the city administration nor its inhabitants, nor national or international organisations were prepared. Approximately 60.000 of the 260.000 inhabitants died, leaving other 30.000 homeless and causing an enormous impact on the local economy. In the aftermath of this event tsunami early warning system were developed and are operated today (e. g. the German Indonesian Tsunami Early Warning System – GITEWS (Lauterjung, 2005)). However, the problem of earthquake or tsunami prediction in a deterministic sense has not been solved yet (Zschau et al, 2002). Thus, an end-to-end tsunami early warning system includes not only the tsunami warning, but also the assessment of vulnerability, perception studies, evacuation modeling, eventually leading to technical requirements for monitoring stations and recommendations for adaptation and mitigation strategies (Taubenbock et al., 2009a). In this study we address several specific questions on the capabilities of one discipline – remote sensing – for diagnosing the multi-faceted and complex vulnerability of a city: • Which remotely sensed data sets are appropriate analyzing vulnerability in highly complex urban landscapes? • What capabilities and limitations does urban remote sensing have regarding mapping, analysis and assessment of risks and vulnerability? • How can interdisciplinary approaches extend the applicability of earth observation?
An atomic scale investigation of the adsorption of sodium oleate on Ca2+ activated quartz surface

In this study, the surface properties and flotation behavior of quartz with NaOl as a collector in the presence of Ca2+ ions were investigated using density functional theory (DFT) calculations in conjunction with flotation tests, adsorption experiments, zeta potential measurements, and solution chemistry calculations. The results of the flotation and adsorption tests proved that Ca2+ promoted the flotation recovery and the adsorption density of sodium oleate on quartz at pH > 8. Zeta potential analyses and solution chemistry calculations demonstrated that Ca(OH)+ was the functional species which activated quartz. DFT calculations indicated that O atoms dominated the quartz (101) surface, and great electrostatic repulsion and space resistance existed between the surface and oleate anion.The spontaneous adsorption of H2O and OHon the (101) surface made quartz surfaces hydrated and hydroxylated, and resulted in the hydrophilicity of quartz. The adsorption of Ca(OH)+ on quartz (101) surface was more favorable and able to repulse the water film, which decreased the electrostatic repulsion and space resistance, and further facilitated the adsorption of oleate anion. During the activating and collecting adsorption processes, electron transition occurred along the O1—Ca—O2 path, implying Ca(OH)+ acted as an intermediary and electron donator in the activation process.
Virtual Drum Simulator Using Computer Vision

Computers have slowly begun to replace many of our day to day objects. Something like a laptop can easily become anything, given the right software. Numerous emulators and simulators have been developed in order to make the computer act like something completely different. This study attempts to create a virtual drum system that can be played using a webcam and a computer system alone. It utilizes the many functions of computer vision aided with the OpenCV library. Image processing techniques such as application of a Gaussian filter and thresholding were used in order to track the user's hand and successfully emulate the drum through tracking of its various movements. The contours extracted from the thresholding techniques are tracked by finding their respective bounding rectangles. The result was a system that could emulate a drum and can be played with the hands through striking the different areas of the drum. Although this method was quite effective and did produce the desired effect, the system does not allow the user's head to be present in the video as it may be detected and mistaken for a hand. Further developments to the system should address this, and should also include a solution for supporting foot functionalities such as bass drum and hi-hat control.
Crustal architecture of the oblique-slip conjugate margins of George V Land and southeast Australia

A conceptual, lithospheric-scale cross-section of the conjugate, oblique-slip margins of George V Land, East Antarctica, and southeast Australia (Otway Basin) has been constructed based on the integration of seismic and sample data. This cross-section is characterised by asymmetry in width and thickness, and depth-dependent crustal extension at breakup in the latest Maastrichtian. The broad Antarctic margin (~360 km apparent rift width) developed on thick crust (~42 km) of the Antarctic craton, whereas the narrow Otway margin (~220 km) developed on the thinner crust (~31 km) of the Ross-Delamerian Orogen. The shallow basement (velocities ~5.5 km.s -1 ) and the deep continental crust (velocities >6.4 km.s -1 ) appear to be largely absent across the central rift, while the mid-crustal, probably granitic layer (velocities ~6 km.s -1 ) is preserved. Comparison with published numerical models suggests that the shallow basement and deep crust may have been removed by simple shear, whereas the mid-crust has been ductilely deformed. Citation: H.M. J. Stagg and A.M. Reading (2007), Crustal architecture of the oblique-slip conjugate margins of George V Land and southeast Australia, in Antarctica: A Keystone in a Changing World - Online Proceedings of the 10 th
Particle size effect on TL emission of ZnS nanoparticles and determination of its kinetic parameters

Nanoparticles have large surface area, and most of the ions are lying on its surface. Could these surface ions be contributed in thermoluminescence emission or enhanced nonradiative transition? In view of this, we have prepared small sizes of ZnS nanoparticles at low temperature and made two samples, one as-prepared (size ∼3 nm) and the other heat-treated at 1073 K (size ∼32 nm). Characterization of the samples shows that the prepared phosphors are pure. Thermoluminescence (TL) glow curves could not be recorded in both samples without irradiation. Even for higher dose of γ-radiation the as-prepared samples could not show TL signal, but 1073 K heat-treated sample shows the TL signal. This may be due to the fact that smaller particles have large surface area compared to bigger particles, the surface ions may produce the nonradiative transitions. The kinetic parameters of the TL glow curves are evaluated by the conventional methods and compared with curve fitting computerised glow curve deconvolution (CGCD) technique. The variations in both techniques are found only ±0.02. The shape factor of all the glow curves ∼0.48, and these TL glow curves could be fitted with order of kinetics 1.5.
Coastal Caves in Bahamian Eolian Calcarenites: Differentiating Between Sea Caves and Flank Margin Caves Using Quantitative Morphology

Coastal areas on carbonate islands commonly contain two types of caves: sea caves developed by wave erosion processes, and flank margin caves developed by dissolution at the edge of the fresh-water lens. Differentiating sea caves and flank margin caves in coastal settings is important, but can it be done reliably and quantitatively? Current methods use the degree of intricate wall-rock dissolution and the presence or absence of dense calcite speleothems to separate the two cave types. This study reports how analysis of cave maps creates three separate tools to differentiate coastal caves: area to perimeter ratio, entrance width to maximum width ratio, and rectangle short axis to long axis ratio. The study also presents some of the first sea cave data from eogenetic carbonate islands, specifically eolian calcarenites. The morphological and geometrical comparisons between Bahamian flank margin cave and sea cave maps using the three tools allows the two cave types to be statistically differentiated. The Bahamian sea cave data were also compared to sea cave data from California and Maine to demonstrate that Bahamian sea caves have a unique quantitative signature based on the youth and homogeneity of the host eolian calcarenite rock. The Bahamian sea cave data also indicate that sea cave formation may not be solely determined by differential rock weaknesses, as reported in the literature, but may also be a result of wave dynamics such as constructive interference.
Influence of oil exposure on the physiology and ecology of the common sole Solea solea: Experimental and field approaches

Evaluating the ecological impact of an oil spill is a complex issue requiring coherently articulated exami- nation of the sequence of interactions that link the cell, where contaminants exert their effects, to the ecosystem, where interactions with human activities arise. This sequence of interactions traverses the frontiers between scientific disci- plines (chemistry, toxicology, physiology, and fisheries ecology). Using the common sole (Solea solea L.) as a model species for the coastal habitats polluted by the "Erika" oil spill, our research project attempted to define indices of functional integrity that characterised the consequences of fuel exposure at the different biological levels. The coupling of field observations with experimental laboratory work revealed how functional alterations which are readily observ- able within individuals and their organs are progressively obscured as investigation progresses towards more complex organisational levels. Some of the approaches and indices are proposed as instruments for evaluating the impact of contamination by hydrocarbons.
HEALTH RELATED QUALITY OF LIFE (HRQOL) AMONG STROKE SURVIVORS ATTENDING REHABILITATION CENTRES IN SELANGOR

Background : A cross-sectional survey was carried out in December 2007 to compare the healthrelated quality of life (HRQoL) of stroke survivors with that of general Malaysian population. Methodology : Stroke patients were recruited from two community-based rehabilitation centres in Selangor. HRQoL was assessed using Medical Outcome 36-Item Short-Form Health Survey (SF-36). Result : A total of 61 patients (34 males and 27 females) were interviewed. Majority were Chinese (85%) and a small percentage were Malays (15%). 82% (n=50) were elderly of 60 years and above, and the remaining 18% (n=11) were younger patients. 64% had stroke for one year and more, and 36% were less than a year post-stroke. All subjects were community-dwellers and lived with their families. The result showed that with the exception of bodily pain, the mean score of all SF-36 health domains of stroke patients were lower than that of the general population. The greatest difference was in role physical, followed by physical functioning. Female patients demonstrated higher score than the males in all SF-36 domains, in particular general health (57.2 vs 70.3, p=0.01) and social functioning (52.2 vs 73.1, p=0.00). There were no differences of HRQoL domains after comparison according to poststroke duration (all p>0.05). Conclusion : HRQoL of stroke survivors is lower than that of Malaysian general population in all SF-36 health domains, with the exception of bodily pain.
Age-dependent taxation, retirement behavior, adn work hours over the life cycle

We use a computable overlapping generations model economy, which matches the stylized facts concerning retirement behavior, to analyze the consequences of three reforms designed to reduce tax rates on the labor supply of older workers. We find that these reforms increase the participation rates of the elderly and show that the gains, in terms of old age work hours, are non-trivial. However, we also find that the total labor supply response to the reforms is not so much an increase in total lifetime hours as it is a reallocation of hours over the life cycle. Finally, we show that these reforms, designed to increase the length of the working life of individuals, may not increase output.
ESTIMATION OF CONDITIONAL QUANTILE USING NEURAL NETWORKS

The problem of estimating conditional quantiles using neural networks is investigated here. A basic structure is developed using the methodology of kernel estimation, and a theory guaranteeing consistency on a mild set of assumptions is provided. The constructed structure constitutes a basis for the design of a variety of different neural networks, some of which are considered in detail. The task of estimating conditional quantiles is related to Bayes point estimation whereby a broad range of applications within engineering, economics and management can be suggested. Numerical results illustrating the capabilities of the elaborated neural network are also given.
Local unitary representations of the braid group and their applications to quantum computing

We provide an elementary introduction to topological quantum computation based on the Jones representation of the braid group. We first cover the Burau representation and Alexander polynomial. Then we discuss the Jones representation and Jones polynomial and their application to anyonic quantum computation. Finally we outline the approximation of the Jones polynomial and explicit localizations of braid group representations.
Possibility of superconductivity in graphite intercalated with alkaline earths investigated with density functional theory

Using density functional theory we investigate the occurrence of superconductivity in AC6 with A=Mg,Ca,Sr,Ba. We predict that at zero pressure, Ba and Sr should be superconducting with critical temperatures (Tc) 0.2 and 3.0 K, respectively. We study the pressure dependence of Tc assuming the same symmetry for the crystal structures at zero and finite pressures. We find that the SrC6 and BaC6 critical temperatures should be substantially enhanced by pressure. On the contrary, for CaC6 we find that in the 0–5 GPa region, Tc weakly increases with pressure. The increase is much smaller than that shown in several recent experiments. Thus we suggest that in CaC6 a continous phase transformation, such as an increase in staging, occurs at finite pressure. Finally we argue that, although MgC6 is unstable, the synthesis of intercalated systems of the kind MgxCa1–xCy could lead to higher critical temperatures.