Miracle-dz/UniFAR-FTUs huggingface dataset:
Improvement of Earthquake Epicentral Locations Using T-Phases: Testing by Comparison With Surface Wave Relative Event Locations

Abstract : A deployment of 51 ocean-bottom seismometers (OBS) on the seafloor spanning 800 km across the East Pacific Rise provides a unique opportunity to test the robustness of epicentral location techniques using T-phases. A standard technique for locating events with T-phases is to pick the arrival the time of peak energy, then proceed as if it were an unscattered phase originating at the epicenter. Such an approach has been shown to have no apparent bias in epicentral location. Comparison of waveforms at nearby stations, however, shows that peak energy arrival time can shift to different parts of the wavetrain due to incoherent interference between waves excited or scattered from different locations, even for stations only a few kilometers apart, forcing operator identification of particular features in the waveform. At greater sensor separations, such identification cannot be performed with confidence. We show that a 75% reduction in variance relative to picks of peak arrival times can be achieved by fitting an assumed functional shape to the entire envelope of the T-phase. Since most of the variation in the envelope is caused by scattering and interference of the waves, "noise" is proportional to signal and is log-normal. Best results are obtained by fitting the log of the envelope, which transforms the noise into a nearly constant, Gaussian distributed background and de-emphasizes individual peaks. By fitting the entire long wavetrain of the T-phase, excitation by individual bathymetric features is also de-emphasized. We test the stability of this approach for events of greatly different size using a mainshock/aftershock sequence of earthquakes at the northern end of the Easter microplate. In addition, for the larger earthquakes, we can compare relative event locations with those determined by cross-correlating waveforms of Rayleigh and Love surface waves recorded teleseismically. The T-phases from the OBSs are supplemented by T-phases recorded at GSN station RPN. Rela
The aflatoxin B 1 isolating potential of two lactic acid bacteria

Adel Hamidi, Reza Mirnejad, Emad Yahaghi,Vahid Behnod, Ali Mirhosseini, Sajad Amani, Sara Sattari, Ebrahim Khodaverdi Darian Department of Microbiology, Razi Vaccine and Serum Research Institute, Arak, Iran Molecular Biology Research Center, Baqiyatallah University of Medical Sciences, Tehran, Iran Young Researchers and Elite Club, Damghan Branch, Islamic Azad University, Damghan Iran Department of Microbiology, Dameghan Branch, Islamic Azad University, Damghan, Iran Applied microbiology research center,baqiyatallah university of medical sciences,Tehran,Iran Young Researchers and Elite Club, Tonkabon Branch, Islamic Azad University, Tonkabon Iran Department of Microbiology, Science and research Branch, Islamic Azad University, Tehran, Iran Young Researchers and Elite Club, Karaj Branch, Islamic Azad University, Karaj Iran Asian Pac J Trop Biomed 2013; 3(9): 732-736
SMILES2vec: Predicting Chemical Properties from Text Representations

Chemical databases store information in text representations, and the SMILES format is a universal standard used in many cheminformatics software. Encoded in each SMILES string is structural information that can be used to predict complex chemical properties. In this work, we develop SMILES2vec, a deep RNN that automatically learns features from SMILES strings to predict a broad range of chemical properties, including toxicity, activity, solubility and solvation energy. Furthermore, we trained an interpretability mask for SMILES2vec solubility prediction, which identifies specific parts of a chemical that is consistent with groundtruth knowledge with an accuracy of 88%, demonstrating that neural networks can learn technically accurate chemical concepts.
DELAY ASPECTS IN INTERNET TELEPHONY

In this work, we address the transport of high quality voice over the Internet with a particular concern for delays. Transport of interactive audio over IP networks often suffers from packet loss and variations in the network delay (jitter). Forward Error Correction (FEC) mitigates the impact of packet loss at the expense of an increase of the end-to-end delay and the bit rate requirement of an audio source. Furthermore, adaptive playout buffer algorithms at the receiver compensate for jitter, but again this may come at the expense of additional delay. As a consequence, existing error control and playout adjustment schemes often have end-to-end delays exceeding 150 ms, which significantly impairs the perceived quality, while it would be more important to keep delay low and accept some small loss. We develop a joint playout buffer and FEC adjustment scheme for Internet Telephony that incorporates the impact of end-to-end delay on perceived audio quality. To this end, we take a utility function approach. We represent the perceived audio quality as a function of both the end-to-end delay and the distortion of the voice signal. We develop a joint rate/error/playout delay control algorithm which optimizes this measure of quality and is TCP-Friendly. It uses a channel model for both loss and delay. We validate our approach by simulation and show that (1) our scheme allows a source to increase its utility by avoiding increasing the playout delay when it is not really necessary and (2) it provides better quality than the adjustment schemes for playout and FEC that were previously published. We use this scheme in the framework of non-elevated services which allow applications to select a service class with reduced end-to-end delay at the expense of a higher loss rate. The tradeoff between delay and loss is not straightforward since audio sources may be forced to compensate the additional losses by more FEC and hence more delay. We show that the use of non-elevated services can lead to quality improvements, but that the choice of service depends on network conditions and on the importance that users attach to delay. Based on this observation, we propose an adaptive service choosing algorithm that allows audio sources to choose in real-time the service providing the highest audio quality. In addition, when used over the standard IP best effort service, an audio source should also control its rate in order to react to network congestion and to share the bandwidth in a fair way. Current congestion control mechanisms are based on packets (i.e., they aim to reduce or increase the number of packets sent per time interval to adjust to the current level of congestion in the network). However, voice is an inelastic traffic where packets are generated at regular intervals but packet size varies with the codec that is used. Therefore, standard congestion control is not directly applicable to this type of traffic. We present three alternative modifications to equation based congestion control protocols and evaluate them through mathematical analysis and network simulation.
MMTF-14 K : A Multifaceted Movie Trailer Dataset for Recommendation and Retrieval

In this paper we propose a new dataset, i.e., the MMTF-14K multifaceted dataset. It is primarily designed for the evaluation of videobased recommender systems, but it also supports the exploration of other multimedia tasks such as popularity prediction, genre classification and auto-tagging (aka tag prediction). The data consists of 13,623 Hollywood-type movie trailers, ranked by 138,492 users, generating a total of almost 12.5 million ratings. To address a broader community, metadata, audio and visual descriptors are also precomputed and provided along with several baseline benchmarking results for uni-modal and multi-modal recommendation systems. This creates a rich collection of data for benchmarking results and which supports future development of this field.
SURVEY ON INFORMATION HIDING TECHNIQUES USING QR B ARCODE

Nowadays, the information processing system plays crucial part in the internet. Online information security has become the top priority in all sectors. Failing to provide online information security may cause loss of critical information or someone may use or distribute such information for malicious purpose. Recently QR barcodes have been used as an effective way to securely share information. This paper presents the survey on information hiding techniques which can share high security information over network using QR barcode .
Endoscopic dacryocystorhinostomy: our experience and literature review

Objetivo: Apresentar nossa experiência em dacriocistorrinostomia endoscópica, discutindo os resultados com os encontrados na literatura. Métodos: O material desse estudo consistiu de 16 dacricistorrinostomias realizadas em 12 pacientes acompanhados no período de 2009 a 2011. Analisamos sexo, idade no momento da cirurgia, etiologia da dacriocistite, quadro clínico, número de cirurgias necessárias para a correção, seguimento pós-operatório. Resultados: Houve predomínio do sexo feminino em relação ao masculino (5:1) com idades entre 8 e 71 anos, com média de 35,2 anos. Com relação à etiologia, oito foram classificados como idiopáticos; três, póstraumáticos e um iatrogênico. Os pacientes foram acompanhados em média durante o período de seis meses, com melhora dos sintomas. Apenas dois pacientes evoluíram com permanência de epífora, sendo um deles reoperado com êxito por via externa. Conclusão: A cirurgia endoscópica endonasal deve ser considerada nos pacientes com obstrução das vias lacrimais, devido ao seu alto índice de sucesso, além de ser um procedimento seguro, com menor morbidade e proporcionar melhor resultado estético. Descritores: Dacriocistorinostomia/métodos; Dacriocistite; Cirurgia endoscópica por orifício natural; Aparelho lacrimal; Doenças do aparelho lacrimal ABSTRACT
Application of Classifiers in Predicting Problems of Hydropower Engineering

It’s of vital importance to supervise hydropower engineering in order to make better use of water resources. To supervise it efficiently and effectively, it’s advisable to predict potential problems of hydropower engineering beforehand, after which the people concerned can inspect problems accordingly. Due to the complexity and large quantity of data, data mining techniques are indispensable and useful when making predictions. This study compares performance of Random Forest, C4.5 and Naive Bayes on the basis of accuracy, precision, recall and F-measure. It comes out that Random Forest is more suitable for this problem. For purpose of more precise results, numbers of trees and features are determined in advance before constructing the forest. Furthermore, which feature influences the prediction result most is also investigated.
Project evaluation paper: Mobile resource guarantees

The Mobile Resource Guarantees (MRG) project has developed a proof-carrying-code infrastructure for certifying resou rce bounds of mobile code. Key components of this infrastructure are a certifying comp iler for a high-level language, a hierarchy of program logics, tailored for reaso ning about resource consumption, and an embedding of the logics into a theorem pr over. In this paper, we give an overview of the project’s results, discuss the les son learnt from it and introduce follow-up work in new projects that will build on t hese results.
A Finite Element Method for Nematic Liquid Crystals with Variable Degree of Orientation | SIAM Journal on Numerical Analysis | Vol. 55, No. 3 | Society for Industrial and Applied Mathematics

We consider the simplest one-constant model, put forward by J. Ericksen, for nematic liquid crystals with variable degree of orientation. The equilibrium state is described by a director field nn and its degree of orientation s, where the pair (s,n) minimizes a sum of Frank-like energies and a double well potential. In particular, the Euler–Lagrange equations for the minimizer contain a degenerate elliptic equation for n, which allows for line and plane defects to have finite energy. We present a structure preserving discretization of the liquid crystal energy with piecewise linear finite elements that can handle the degenerate elliptic part without regularization, and we show that it is consistent and stable. We prove Γ-convergence of discrete global minimizers to continuous ones as the mesh size goes to zero. We develop a quasi-gradient flow scheme for computing discrete equilibrium solutions and prove that it has a strictly monotone energy decreasing property. We present simulations in two and three dimensions to illustrate the method’s ability to handle nontrivial defects. The following online video illustrates the role of numerical analysis for the simulation of liquid crystal phenomena: [Walker, Shawn. “Mathematical Modeling and Simulation of Nematic Liquid Crystals (A Montage). ” YouTube video, 04:13. Posted March 6, 2016. http://www.youtube. com/watch? v=pWWw7 6cQ-U].
Cognitive Behavioral Based Treatment for Procrastination

Procrastination is highly prevalent, being present in 20% of the general population [1-3]. When related to the academic domain, it can reach up to 70% [4]. In addition, procrastination affects different life-domains, compromising physical and mental health [5-7], finances [8,9] and individual performance and wellbeing [10-12]. Procrastination is more than a simply delay of a task or a decision to make; it also involves behavioral, cognitive and emotional aspects [13,14]. Understanding the complexity of its nature is fundamental in order to develop an effective intervention for its treatment. Although recent, academic studies are closer to a commonly shared theory. Therefore, the aim of this study is to present the mainly theories about the expression and nature of procrastination in order to review recent interventions for the treatment of procrastination.
On the 'standard' argument for fatalism

L'A. etudie les differentes objections opposees par M. Dummett, J. H. Sobel et R. Stalnaker a la version la plus debattue de l'argument du fatalisme qui consiste, pendant les bombardements de Londres en 1940, a poser la disjonction suivante: Soit je serai tue pendant le raid aerien, soit je ne le serai pas
NONLINEAR DYNAMICS ON CENTRE MANIFOLDS DESCRIBING TURBULENT FLOODS: k-ω MODEL

In shallow turbulent flows such as floods and tsunami vertical mixing tends to smooth out the flow characteristics in cross-sectional direction. The evolution of the average cross-flow characteristics presents considerable interest. We model such flows using the k-ω model of turbulence in the framework of the centre manifold theory. We tested the approach on an artificial diffusion problem for which an exact analytical solution is derived. Then we apply the method to model the turbulent flows and deduced the evolution equations for the average velocity, turbulent energy and its rate of dissipation.
Postcranial anatomy of Haldanodon exspectatus (Mammalia, Docodonta) from the Late Jurassic (Kimmeridgian) of Portugal and its bearing for mammalian evolution

The postcranium of the Late Jurassic docodont Haldanodon exspectatus Kuhne & Krusat, 1972 is represented by a partial skeleton and isolated bones of other individuals from the Late Jurassic (Kimmeridgian) of the Guimarota coal mine in Portugal. Haldanodon exhibits adaptations for a fossorial lifestyle such as stout and short limb bones and humeri with greatly expanded distal joints and strong deltopectoral crests. Short first and second phalanges and moderately curved and laterally compressed terminal phalanges with lateral grooves suggest that Haldanodon was a scratch-digger. The dorso-ventrally elongated, triangular scapula has a convex transverse profile with strongly laterally reflected anterior and posterior scapula margins, enclosing a deep trough-like ‘infraspinous fossa’. A supraspinous fossa is not developed. The saddle-shaped glenoid facet is mainly formed by the coracoid and orientated antero-ventrally indicating a sprawling gait. No epiphyses were detected and the wide size range of humerus and femur possibly indicate a lifelong growth. Haldanodon is more derived than Morganucodon by complete reduction of the procoracoid, absence of the procoracoid foramen, and a peg-like coracoid. It shares with monotremes a postscapular fossa that is absent in Morganucodon . A PAUP analysis based on 280 cranio-dental and postcranial characters corroborated the position of Haldanodon above morganucodontids and below Hadrocodium . © 2005 The Linnean Society of London, Zoological Journal of the Linnean Society , 2005, 145 , 219‐248.
Assimilation of Altimeter Data into a Quasigeostrophic Model of the Gulf Stream System Part I: Dynamical Considerations

Abstract The dynamical consequences of constraining a numerical model with sea surface height data have been investigated. The model used for this study is a quasigeostrophic model of the Gulf Stream region. The data that have been assimilated are maps of sea surface height obtained as the superposition of sea surface height variability deduced from the Geosat altimeter measurements and a mean field constructed from historical hydrographic data. The method used for assimilating the data is the nudging technique. Nudging has been implemented in such a way as to achieve a high degree of convergence of the surface model fields toward the observations. The assimilations of the surface data is thus equivalent to the prescription of a surface pressure boundary condition. The authors analyzed the mechanisms of the model adjustment and the characteristics of the resultant equilibrium state when the surface data are assimilated. Since the surface data are the superposition of a mean component and an eddy component.
Simulation and Construction of a Modified Turnstile Dipole Tx Antenna for Whole Body 7T MRI with an Extended Gradient Coil RF-shield of 1.58 m Length

Introduction: MRI at ultra high field (UHF) requires different Tx-coils for excitation of different body parts since the construction of one large body coil similar to those at lower fields is difficult. Moreover, at 7T B1 is inhomogeneous as the RF-wave length within the object is smaller than the object extensions. A new method, the travelling wave concept [1], offers the potential to overcome some of these restrictions: In RF-coils the usable B1-field is restricted to dimensions and geometry of the RF-coil itself, except the RF-coil is considered as RF-resonator which can go beyond this restriction [4], contrary to this in the travelling wave concept the usable B1-field is restricted to the dimensions of the waveguide (RF-shield) only. While standard transmit coils at 7T excite rather small volumes, the MR travelling wave concept allows exciting large volumes depending on the length of the RFshield. For an antenna with a frequency of 297MHz the approximate wavelength is about 1m. Thus the RF-shield of the gradient coil (Fig. 1) with a diameter of 64cm can be used as a waveguide. As our system has an extended gradient RF-shield with a length of 1.58m the travelling wave concept has the potential to work as a whole body coil. This study evaluates the use as an efficient body coil replacement in the future.
A heteroscedastic polynomial regression with measurement error in both axes

With epidemiological and astronomical data, it is common to observe variances that vary with the observations. Further, values for those variances typically are available from follow-up studies or replications. This paper deals with consistent estimation and hypothesis testing in a heteroscedastic polynomial model with measurement error in both axes and an equation error. For obtaining consistent estimators and consistently assessing their asymptotic variances, we embrace the corrected score approach. Furthermore, we applied the theoretical results in two real data sets: the WHO MONICA project data set on cardiovascular diseases and their risk factors and the Chandra observatory data set. We also simulate the rejection rates for the Wald statistic in order to study test size and power for small and moderate samples, indicating that the test behaves satisfactorily in those situations. keywords Polynomial regression, measurement error, corrected score, asymptotic theory
Observation of reduced 1/f noise in graphene field effect transistors on boron nitride substrates

We have investigated the low frequency (f) flicker (also called 1/f) noise of single-layer graphene devices on h-BN (placed on SiO2/Si) along with those on SiO2/Si. We observe that the devices fabricated on h-BN have on average one order of magnitude lower noise amplitude compared with devices fabricated on SiO2/Si despite having comparable mobilities at room temperature. We associate this noise reduction to the lower densities of impurities and trap sites in h-BN than in SiO2. Furthermore, the gate voltage dependent noise amplitude shows a broad maximum at Dirac point for devices on h-BN, in contrast to the M-shaped behavior showing a minimum at Dirac point for devices on SiO2, consistent with the reduced charge inhomogeneity (puddles) for graphene on h-BN. This study demonstrates that the use of h-BN as a substrate or dielectric can be a simple and efficient noise reduction technique valuable for electronic applications of graphene and other nanomaterials.
Generalized cone b-metric spaces and contraction principles

The concept of generalized cone b-metric space is introduced as a generalization of cone metric space, cone b-metric space and cone rectangular metric space. An analogue of Banach contraction principle and Kannan's fixed point theorem is proved in this space. Our result generalizes many known results in fixed point theory.
STRUCTURAL BIOLOGY AND PATTERN RECOGNITION

In this paper we present two tracks based on the exploitation of protein structure comparison in 3D: the first for retrieving a structural block (small subset or even an entire macromolecule) from a protein data base, and the second for protein supervised classification. The first track is based on the Generalized Hough Transform (GHT) which is applied adopting two different strategies. The former algorithm uses exhaustive matching of all possible subsets of the macromolecule having the same cardinality of the structural block model with the model itself. The second strategy exploits the retrieval of co-occurrences of two (but may be extended to three, or more) basic components for contributing to the motif recognition. The later approach is based on a protein peculiar representation through an Extended Gaussian Image (EGI). In the EGI the histogram of the orientations of an object surface is mapped on the unitary sphere. We propose to adopt a similar data-structure named Protein Gaussian Image (PGI) for representing the orientation of the protein Secondary Structures (SSs) (helices and sheets), storing the features of the SS. For the taxonomy of proteins into given classes, on the basis of the PGI representation, a neural network implementing the Kohonen self-organizing feature maps is adopted. We consider both these approaches very effective for a preliminary screening in looking on the PDB and for confirming the SCOP classification.
Interaction of β-Cyclodextrin with DNA-Bases

Complexes of β-cylodextrin with five nucleotides of adenine (A), thymine (T) guanine (G), cytosine (C), and 5-methylcytosine have been investigated using Hatree-Fock (HF) and density functional theory (DFT) calculations of different quality. [. ]
A Wireless Sensor Network Protocol for a Car Parking Space Monitoring System

: This paper presents a wireless sensor network protocol for a car parking monitoring system. A wireless sensor network for the purpose is composed of multiple sensor nodes, a sink node, a gateway, and a server. Each of the sensor nodes is equipped with a 3-axis AMR sensor and deployed in the center of a parking space. The sensor node reads its sensor values periodically and transmits the data to the sink node if the current and immediate past sensor values show a difference exceeding a threshold value. The operations of the sink and sensor nodes are described in detail along with flow diagrams. The protocol allows a low-duty cycle operation of the sensor nodes and a flexible adjustment of the threshold value used by the sensor nodes.