Miracle-dz/UniFAR-FTUs huggingface dataset:
Comparison of flux-correcting and spline algorithms for solving (3+1)-dimensional relativistic hydrodynamics.

We study flux-correcting and spline algorithms methods for solving relativistic hydrodynamic equations. Differences in the methods are contrasted, and comparisons are given for the ultrarelativistic collision of two nuclei within the framework of a one-fluid model. Both methods give surprisingly similar results, although differences in detail are apparent.
Large Scale Tensor Decompositions: Algorithmic Developments and Applications

Tensor decompositions are increasingly gaining popularity in data science applications. Albeit extremely powerful tools, scalability to truly large datasets for such decomposition algorithms is still a challenging problem. In this paper, we provide an overview of recent algorithmic developments towards the direction of scaling tensor decompositions to big data. We present an exact Map/Reduce based algorithm, as well as an approximate, fully parallelizable algorithm that is sparsity promoting. In both cases, careful design and implementation is key, so that we achieve scalability and efficiency. We showcase the effectiveness of our methods, by providing a variety of real world applications whose volume previously rendered their analysis very hard, if not impossiblewhere our algorithms were able to discover interesting patterns and anomalies.
Unit VertexInfo Cache VertexData Cache EdgeInfo Buffer EdgeData Cache ActiveList Cache Memory Request Handler Memory Interface

Graph applications have been gaining importance in the last decade due to emerging big data analytics problems such as web graphs, social networks, and biological networks. For these applications, traditional CPU and GPU architectures suffer in terms of performance and power consumption due to irregular communications, random memory accesses, and load balancing problems. It has been shown that specialized hardware accelerators can achieve much better power and energy efficiency compared to the general purpose CPUs and GPUs. In this work, we present a template-based methodology specifically targeted for hardware accelerator design of big-data graph applications. Important architectural features that are key for energy efficient execution are implemented in a common template. The proposed template-based methodology is used to design hardware accelerators for different graph applications with little effort. Compared to an application-specific high-level synthesis (HLS) methodology, we show that the proposed methodology can generate hardware accelerators with up to 18x better energy efficiency and requires less design effort.
Numerical Calibration of Turbulent Compressible Models Using Rapid Distortion Theory

The study of compressible homogeneous shear flows has been largely analyzed in literature. Predictions for these flows require an improvement of existing turbulence models. Rapid-distortion-theory (RDT) has largely showed its relevance and its utility to identify compressibility effects which allow us to analyze performances of compressible turbu- lence models from the existing literature. This paper describes an evaluation of two models of homogeneous compressible turbulence by comparison with RDT results in compressible regime of flow. This model evaluation stays in the field of RDT validity. Precisely, the manuscript deals with two pressure-strain correlation models developed by Hamba and Mar- zougui et al. Linear parts of these models do not correctly predict compressible turbulence. A numerical calibration of co- efficients included in these models provides broadly a net improvement with RDT results.
Compositional analysis of bivariate discrete probabilities

A joint distribution of two discrete random variables with finite support can be displayed as a two way table of probabilities adding to one. Assume that this table hasn rows and m columns and all probabilities are non-null. This kind of table can beseen as an element in the simplex of n · m parts. In this context, the marginals areidentified as compositional amalgams, conditionals (rows or columns) as subcompositions. Also, simplicial perturbation appears as Bayes theorem. However, the Euclideanelements of the Aitchison geometry of the simplex can also be translated into the tableof probabilities: subspaces, orthogonal projections, distances.Two important questions are addressed: a) given a table of probabilities, which isthe nearest independent table to the initial one? b) which is the largest orthogonalprojection of a row onto a column? or, equivalently, which is the information in arow explained by a column, thus explaining the interaction? To answer these questionsthree orthogonal decompositions are presented: (1) by columns and a row-wise geometric marginal, (2) by rows and a columnwise geometric marginal, (3) by independenttwo-way tables and fully dependent tables representing row-column interaction. Animportant result is that the nearest independent table is the product of the two (rowand column)-wise geometric marginal tables. A corollary is that, in an independenttable, the geometric marginals conform with the traditional (arithmetic) marginals.These decompositions can be compared with standard log-linear models.Key words: balance, compositional data, simplex, Aitchison geometry, composition,orthonormal basis, arithmetic and geometric marginals, amalgam, dependence measure,contingency table
Distributed Parallel Computing in Data Analysis of Osteoporosis

This research aimed to compare the performance of two models of load balancing (Proportional and Autotuned algorithms) of the JPPF platform in the processing of data mining from a database with osteoporosis and osteopenia. When performing the analysis of execution times, it was observed that the Proportional algorithm performed better in all cases.
Exploring use of new media in environmental education contexts: introducing visitors’ technology use in zoos model

Modern zoological gardens have invested substantial resources in technology to deliver environmental education concepts to visitors. Investment in these media reflects a currently unsubstantiated belief that visitors will both use and learn from these media alongside more traditional and less costly displays. This paper proposes a model that identifies key factors theorized to influence the likelihood of visitors engaging in technology-delivered media. Using data from two case studies of large National Science Foundation-funded projects in zoos, the authors argue key factors in predicting visitors’ technology use in zoos include: intrinsic and extrinsic variables (e.g. learning preference and age), perceived usefulness, perceived ease of use, attraction to technology, intent to use, initial use, and continued use. Future research examining the model components and their effectiveness for predicting use is needed, as well as research comparing the specific learning outcomes from experiences facilitated by technology with learning outcomes from more traditional interpretive techniques.
A new approach: An FPGA based robot navigation for patrolling in service environment

The patrolling are esteemed services in real time robot navigation. An autonomous mobile robots has received an attention in patrolling environments from the last few years. Patrolling type navigation constructed with two objectives one is autonomous navigation system and other one is efficient hardware scheme preferred. In this regard the proposed robot navigation is developed with modified approach of depth first search algorithm for patrolling services. It is implemented using FPGAs for successful navigation. An FPGA will works as control unit, after sensing free path it drives the robot as per algorithm.
Microbial contamination of raw meat and its environment in retail shops in Karachi, Pakistan.

BACKGROUND This study was conducted to examine the frequency of contamination in retail meat available in Karachi, Pakistan. METHODOLOGY Raw meat samples (250) and surface swabs (90) from meat processing equipment and the surrounding environment were analyzed for microbiological contamination. RESULTS Out of 340 samples, 84% were found to be contaminated with bacterial species, including Klebsiella, Enterobacter, Staphylococcus aureus and Bacillus subtilis. A total of 550 (66%) of the bacterial isolates were potential pathogens. Of these, 342 and 208 isolates were from meat and environmental samples respectively. Food-borne pathogens isolated from meat samples included Escherichia coli O157:H7, Listeria, Salmonella Enteritidis and Shigella species whereas environmental samples yielded Staphylococcus aureus and Shigella species. Four strains of Brucella species were also isolated from meat samples. Total aerobic counts ranged between 108 -1010 CFU/g or cm2. Resistance to a wide range of antibiotics was observed. Resistance rates to ampicillin, amoxicillin, novobiocin and cefaclor were from 62 to 75% in general. Thirty-three percent of Salmonella isolates were resistant to ampicillin. No quinolone resistance was observed. Biofilm formation was observed among 88 (16%) pathogenic bacteria including E. coli, Klebsiella, Enterobacter species and Staphylococcus aureus. CONCLUSIONS Food-borne pathogens found in retail shops could be sources for horizontal contamination of meat. Our data confirm the circulation of antibiotic resistant and biofilm forming pathogens in raw meat and its environment in retail shops in Pakistan, which could play a role in the spread of antimicrobial resistance amongst food-borne bacteria.
Online Parameter Estimation for the Adaptive Control of Unmanned Aerial Vehicles

The accurate modeling of aircraft dynamics is essential when applying optimal control algorithms to unmanned aircraft. However, for low cost vehicles the dynamics may be difficult to predict. A number of factors work against the engineer; the aircraft is more likely to suffer manufacturing imperfections and rely on relatively crude actuation mechanisms, atmospheric disturbances play a significant role in performance, and under these conditions some aerodynamic performance parameters are difficult to accurately predict. Furthermore, a hard landing or other disturbance could easily alter the control surface trims of the aircraft and perhaps even it’s dynamic response. Finally, low cost aircraft are more susceptible to actuator failures in flight. All of these factors motivate online parameter estimation. Our strategy is outlined as follows:
To be one who continues to smoke: Construction of legitimacy and meaning in young adults’ accounts of smoking

This study analyses young smokers’ accounts of continuing to smoke in a context of increasing structural and symbolic pressure to quit. It explores the accounts in relation to issues of legitimacy, meaning and identity. A qualitative study was conducted with interviews with 21 male and female smokers aged 18–23 years. The interviewees described themselves in various ways as ‘in control’ of their smoking, discursively rejecting addiction. They also spoke about control in accounts of calculation of risk of ill health, and of compensating for smoking by other health promoting lifestyles. At the same time the interviewees talked about smoking in a way that opposed this rational discourse, highlighting pleasure and an emotional and metaphysical side of smoking. The material was interpreted using a discourse analytic framework, inspired by a Foucauldian understanding of discourse as impacting on the construction of subjectivity, selfhood and identity.
Social Support and Change in Depression Among Older Adults in Taiwan

This study investigates the association between social support and change in depression among older adults in Taiwan. Data are from an islandwide representative longitudinal study. The study sample includes 3,686 Taiwanese aged 50+ who completed a baseline survey and survived a 3-year follow-up period. Social support was measured by using indexes representing dimensions of tangible support, perceived emotional support, and support satisfaction. Two change in depression outcomes were constructed using a modified version of the CES-D. Results indicated that social support is a robust predictor of change in depression among those not depressed at baseline but is less consequential among those already in a state of depression. Support satisfaction is more strongly related to the outcomes than other dimensions. The discussion places the results within the Taiwanese context and provides policy implications.
Structure and function in glaucoma: The relationship between a functional visual field map and an anatomic retinal map.

PURPOSE To examine the relationship between an anatomic map relating the retinal nerve fiber layer (RNFL) distribution to the optic nerve head and a functional map derived from the interpoint correlation of raw sensitivities in visual field (VF) testing. METHODS Previously, interpoint correlations were generated for all possible pairs of VF test points in a dataset of 98,821 Humphrey VF test results taken from the Moorfields Eye Hospital archive. The relationship between these correlations and the physical distance between the VF test point pairs was evaluated by Pearson's correlation coefficient and multiple regression analysis. The distance between the pairs of VF test points was calculated in two ways. First, the anatomic map was used to estimate the angular distance at the optic nerve head (ONH), between the RNFL bundles corresponding to the VF test points in each pair (ONHd). Second, the retinal distance between pairs of test points was calculated from the Humphrey VF template (RETd). A best-fit model for predicting functional correlation (FC) from ONHd and RETd was constructed and used to formulate a filter incorporating the anatomic-functional correlation data. RESULTS All scatterplots showed a negative association between interpoint retinal sensitivity correlation values and distance between points: ONHd (R2 = 0.60) and RETd (R2 = 0.33). The raw sensitivity correlation values could be predicted from a multiple regression model using ONHd, RETd, and a combined interaction of ONHd and RETd (R2 = 0.75, P < 0.00001). The construction of a new filter was based on the equation FC = 0.9325 - (0.0029 . ONHd) - (0.0077 . RETd) + (0.0001 . ONHd . RETd). CONCLUSIONS A good level of association was observed between the strength of correlation between points in the VF and the relative location of those test points in the peripheral retina and in corresponding RNFL bundles at the ONH. These results help to validate the relationship between structure and function and may be of use in the further refinement of physiologically derived VF filters to reduce measurement noise.
Investigation of various growth mechanisms of solid tumour growth within the linear-quadratic model for radiotherapy

The standard linear-quadratic survival model for radiotherapy is used to investigate different schedules of radiation treatment planning to study how these may be affected by different tumour repopulation kinetics between treatments. The laws for tumour cell repopulation include the logistic and Gompertz models and this extends the work of Wheldon et al (1977 Br. J. Radiol. 50 681), which was concerned with the case of exponential re-growth between treatments. Here we also consider the restricted exponential model. This has been successfully used by Panetta and Adam (1995 Math. Comput. Modelling 22 67) in the case of chemotherapy treatment planning.Treatment schedules investigated include standard fractionation of daily treatments, weekday treatments, accelerated fractionation, optimized uniform schedules and variation of the dosage and α/β ratio, where α and β are radiobiological parameters for the tumour tissue concerned. Parameters for these treatment strategies are extracted from the literature on advanced head and neck cancer, prostate cancer, as well as radiosensitive parameters. Standardized treatment protocols are also considered. Calculations based on the present analysis indicate that even with growth laws scaled to mimic initial growth, such that growth mechanisms are comparable, variation in survival fraction to orders of magnitude emerged. Calculations show that the logistic and exponential models yield similar results in tumour eradication. By comparison the Gompertz model calculations indicate that tumours described by this law result in a significantly poorer prognosis for tumour eradication than either the exponential or logistic models. The present study also shows that the faster the tumour growth rate and the higher the repair capacity of the cell line, the greater the variation in outcome of the survival fraction. Gaps in treatment, planned or unplanned, also accentuate the differences of the survival fraction given alternative growth dynamics.
The Thinnest, Steepest, and Maximum Elevation Corneal Locations in Noncontact and Contact Lens Wearers in Keratoconus

Purpose: To assess the relationship between the thinnest corneal location and the steepest and maximum elevation corneal locations in subjects with keratoconus and the effect of gas permeable contact lens wear on the location of these points. Methods: Sixty-one consecutive subjects (98 eyes) with keratoconus. Thirty-one (49 eyes) and 30 (49 eyes) subjects were gas permeable contact lens (CL-W) and non–contact lens wearers (N-CL), respectively. Thinnest, steepest, and maximum elevation corneal locations were evaluated from topographies collected with Pentacam Eye Scanner. Results: In the entire sample and in N-CL and CL-W, the thinnest location does not overlap with the steepest or maximum elevation corneal locations (all P > 0.05). The thinnest and maximum tangential curvature locations were found to be located further away from the geometric center of the cornea in CL-W versus N-CL (P < 0.05). Conclusion: The thinnest corneal location does not overlap with maximum axial and tangential curvatures or with the front and back elevation locations in keratoconus subjects. Contact lens wear does not affect this lack of overlapping.
PLAC1, a trophoblast‐specific gene, is expressed throughout pregnancy in the human placenta and modulated by keratinocyte growth factor

Plac1, a placenta‐specific gene, is expressed exclusively by cells of trophoblastic lineage in the mouse, and maps to a region of the X chromosome known to be important in placental growth. These studies were undertaken to define the cellular location of the mRNA for the human orthologue, PLAC1, within the human placenta, and to examine its expression throughout gestation. By Northern analysis, PLAC1 mRNA was detected in term human placenta, migrating as a single 1.7 kb transcript, but in no other fetal or adult tissues tested. Expression was observed throughout gestation, whereas mouse Plac1 is significantly reduced after 12.5 dpc. Using an 35S‐labeled riboprobe, PLAC1 expression was trophoblast‐specific at all stages of gestation (8–41 weeks); no expression was seen in cells within the stromal compartment or decidua. Using BeWo choriocarcinoma cells as a trophoblast model, keratinocyte growth factor (KGF) stimulated steady‐state PLAC1 mRNA expression approximately twofold by Northern analysis and quantitative real‐time PCR. Stimulation was observed only after 24 hr of exposure, suggesting that the stimulatory effect of KGF is secondary to the promotion of trophoblast growth or differentiation. No change in mRNA levels resulted from exposure to insulin‐like growth factor II (IGF‐II). Trophoblast‐specific expression throughout gestation and responsiveness to KGF are consistent with a fundamental role for PLAC1 at the maternal‐fetal interface. Mol. Reprod. Dev. 63: 430–436, 2002. © 2002 Wiley‐Liss, Inc.
EXAMINING EVIDENCE OF RELIABILITY, VALIDITY, AND FAIRNESS FOR THE SUCCESSNAVIGATOR™ ASSESSMENT

The SuccessNavigator™ assessment is an online, 30 minute self-assessment of psychosocial and study skills designed for students entering postsecondary education. In addition to providing feedback in areas such as classroom and study behaviors, commitment to educational goals, management of academic stress, and connection to social resources, it is also designed to predict a range of early academic outcomes. By indicating students' likely success, advisors, faculty, and staff can target their interactions with students to increase their likelihood of success. This report outlines evidence of reliability, validity, and fairness to demonstrate the appropriateness of SuccessNavigator for these purposes.
Cointegration-based tests of the New Keynesian Model of inflation

We show that the New-Keynesian (NK) model of inflation can be interpreted as a forward-looking cointegrated model. This allows us to model firms' expectations about marginal costs in a simple VAR framework and develop relatively simple formal tests of the model which bypass the econometric problems faced by other approaches. We show that a series of Granger-causality tests can indicate whether there is some forward-looking component to price setting. We implement these tests using quarterly data for the UK and the US. We find that the NK model is formally rejected but that there is strong evidence of a forward looking component to price setting.
Esaim: Control, Optimisation and Calculus of Variations Tracking Control of a Vibrating String with an Interior Mass Viewed as Delay System

A vibrating string, modelled by t h e w ave equation, with an interior mass is considered. It is viewed as a linear delay system. A trajectory tracking problem is solved using a new type of controllability. 1. Introduction The \hybrid system" modelling a vibrating string with an interior point mass is analyzed in a remarkable recent paper by Hansen and Zuazua 6]. Using Hilbert's uniqueness method 7, 8], on the one hand, and nonharmonic Fourier series 13], on the other hand, they give a detailed description of its exact controllability and stabilization by boundary feedback. The present study, which is a companion paper of 3], aims to solve a n-other natural control problem, namely tracking a trajectory of the mass position. We exploit the well known relation 1] b e t ween the undamped wave equation and linear delay systems. We freely use 3], where relations to several classical structural properties of delay systems are established. The present case study illustrates in particular the importance of-freeness 3] for tracking control of a delay system, in a similar spirit as the \\atness based control" of nonlinear ((nite dimensional) systems 2]. See also 11] for other examples. In the next Section the delay system model is derived from the hybrid one. Its-freeness is established in Section 3. As in 6], two cases are distinguished: position control on both boundaries or on either one, in which case the other end is xed. The tracking control in the single control case is treated and illustrated by s i m ulations in Section 4. Related examples may
A Multi-Standard 1.5 to 10 Gb/s Latch-Based 3-Tap DFE Receiver With a SSC Tolerant CDR for Serial Backplane Communication

This paper presents a 1.5 to 10 Gb/s SATA/SAS/FC receiver in 65 nm CMOS. The multiple constraints set by industry standards ask for a receiver architecture capable of simultaneously addressing channel loss impairments, high frequency-difference tracking and low serial to parallel latency. An adaptive 3-tap DFE data recovery is based on a direct-feedback topology to provide a continuous equalized signal assuring a robust clock-data self alignment. A latch-based DFE topology has been developed to overcome the classical DFE feedback loop-delay issue. A digital early-late clock recovery has been proven for plusmn5000 ppm SSC tracking. Extensive digital features allow self-calibration and internal eye analysis. The device, realized in a 65 nm technology, supports more than 36" FR4 at 6 Gb/s with SSC and 28" at 8.5 Gb/s while keeping 0.4 UI of additional sinusoidal jitter tolerance, consuming 140 mW from 1V.