cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Fluid-particle suspension by gas release from a granular bed
Creators: name: Homan, Tess
name: Vidal, Valérie
name: Picard, Clément
name: Joubaud, Sylvain
Publisher: name: arXiv
Year: 2020
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: Classical Physics (physics.class-ph)
subject: FOS: Physical sciences

description: We have studied experimentally particle suspension when injecting a gas at the bottom of an immersed granular layer confined in a Hele-Shaw cell. This work focuses on the dynamics of particles slightly denser than the surrounding fluid. The gas, injected at constant flow-rate, rises through the granular bed then forms bubbles which entrain particles in the above liquid layer. The particles settle down on the edges of the cell, avalanche on the crater formed at the granular bed free surface, and are further entrained by the continuous bubbling at the center. We report the existence of a stationary state, resulting from the competition between particle entrainment and sedimentation. The average solid fraction in the suspension is derived from a simple measurement of the granular bed apparent area. A phenomenological model based on the balance between particle lift by bubbles at the center of the cell and their settling on its sides demonstrates that most of the particles entrained by bubbles come from a global recirculation of the suspension.
Ali Saukah: The Man from Boyolali
Creators: name: Syahid, Abdul
Publisher: name: Zenodo
Year: 2021
Subjects: scholar profile
integrity
commitment
competence
inspiring

description: Menjelang tuntasnya penulisan buku ini, mantan mahasiswaku Program Doktor Universitas Negeri Malang, Dr. Abdul Syahid,
 M.Pd, mengirimkan tulisan yang sangat menarik dan unik gaya bertuturnya. Karena kuanggap isinya termasuk serpihan perjalanan
 hidupku yang menjadi kenanganku tersendiri, tulisan itu juga aku anggap perlu kumuat dalam buku ini. (Ali Saukah dalam Kata Pengantar buku Serpihan Catatan Perjalanan Hidup)
description: {"references": ["Gilbert, I. (2014). Why do I need a teacher when I've got Google? The essential guide to the big issues for every teacher (Second edition). London; New York: Routledge.", "IAIED. (t.t.). Journal. Diambil 4 Oktober 2020, dari The International Artificial Intelligence in Education Society (IAIED) website: https://iaied.org/journal/", "Illich, I. D. (1971). Deschooling Society. Harmondsworth: Penguin.", "Lestaluhu, E., & Karma, M. (1991). Sedang Sedang Saja [Recorded by V. Vera]. Jakarta: M. S. C. Records.", "Marty, F. (1981). Reflections on the use of computers in second-language acqusition\u2014I. System, 9(2), 85\u201398. https://doi.org/10.1016/0346-251X(81)90023-3", "Mohamad, G. (2012a). Apa yang didapat dari \"kereta besar\". Dalam Catatan Pinggir 2 (Cetakan Kedua, hlm. 435\u2013438). Jakarta: Pusat Data dan Analisa Tempo.", "Mohamad, G. (2012b). Guru. Dalam Catatan Pinggir 3 (Cetakan Kedua, hlm. 237\u2013239). Jakarta: Pusat Data dan Analisa Tempo.", "Rost, M. (2007). Commentary: I'm Only Trying to Help: A Role for Interventions in Teaching Listening. Language Learning, 11(1), 102\u2013108. https://doi.org/10125/44091", "SCImago. (t.t.). Scimago Journal & Country Rank [Portal]. Diambil 3 Oktober 2020, dari https://www.scimagojr. com/index.php", "The Essential Difference Between a Teacher and Guru. (2019, Juli 16). Diambil 2 Oktober 2020, dari Indus Scrolls website: https://indusscrolls.com/the-essentialdifference- between-a-teacher-and-guru/", "UNESCO. (2020, Maret 4). COVID-19 Impact on Education. Diambil 3 Oktober 2020, dari UNESCO website: https://en.unesco.org/covid19/educationresponse"]}
A phase-domain induction motor model for transient studies
Creators: name: Myers, Thornley O.A.O.
Publisher: name: University of British Columbia
Year: 2009

description: The research programme presented in this thesis terminates the first phase in the development of a new and accurate model for transient analysis of induction motors in the phase domain. Modelling the induction machine variables in the phase domain required a new model which when tested in similar conditions with existing models would give comparable results in both transient and steady-state studies. This new model has been developed, and essentially it differs from traditional models in that it works directly with the machine variables such as currents and voltages directly in the phase domain instead of the dqO coordinates. This required the solution of a series of first order differential equations with time-varying coefficients. The solution method is based on the discretization of the differential equations with the use of the trapezoidal rule of integration. The new model has been used to develop a computer program for transient and steady-state analysis of induction motors. The new phase domain transient model (PDTM) requires a number of circuit parameters of the induction motor that are not normally supplied by the manufacturer. Consequently, modifications were performed on a computer program that calculates the parameters of the standard 60-Hz equivalent circuit from starting and steady-state characteristics of the motor to obtain the circuit parameters of the PDTM. The results from the PDTM compare favourably tested with those obtained from the electromagnetic transient program (EMTP) which uses conventional dqO coordinates to model the induction motor.
ExpressionAble: Easily transform gene-expression data among file formats
Creators: name: Mella, Nathan
name: Piccolo, Stephen
Publisher: name: F1000 Research Limited
Year: 2019

description: The context: Gene-expression levels help in determining cellular function. To understand these roles, scientists have performed thousands of gene-expression studies using microarray assays and next-generation sequencing. Such data are typically stored in tabular files (with rows and columns).

The problem: Different functional-genomics repositories and preprocessing tools store gene-expression data in a cacophony of file formats. Analysis tools (such as Python, R, and Excel) do not support all these formats natively. It is time consuming and labor intensive for bioinformaticians to translate data between file formats and identify samples that match specific criteria.

The solution: We developed the ExpressionAble tool to reduce the time from data acquisition to analysis for researchers studying gene expression. This tool can help researchers more easily work with their own data as well as the immense gene-expression resources in public databases
Είναι αποτελεσματική η διδασκαλία του 'σκέφτομαι και γράφω΄;
Creators: name: Βουγιούκας, Αριστείδης
Publisher: name: Παιδαγωγική Επιθεώρηση
Year: 2015

description: This article sets out to show that Papastamatis' article of the same title published in "Educational Review" (1998, 28) does injustice to the teaching approach of "I think and write" by which free and patterned writing is taught in Greek primary schools now days; and that it does so not because it contests the main tenets of this approach but because it contains quite a few inaccuracies and untenable assertions, At the same time the present article takes the occasion to expound the framework and the most controversial points of the teaching approach in dispute and to note that its philosophy draws from the domains of both the creative arts and the humanistic psychology.
description: Παιδαγωγική Επιθεώρηση, Vol. 30 (2000)
Αλληλεπιδράσεις στη μικρή ομάδα και επίδοση των μαθητών στα Μαθηματικά και στα Ελληνικά
Creators: name: Χαραλάμπους, Νεόφυτος
Publisher: name: Παιδαγωγική Επιθεώρηση
Year: 2015

description: Παιδαγωγική Επιθεώρηση, Vol. 30 (2000)
APEX CO(3-2) observations of NGC6822
Creators: name: De Rijcke, S.
name: Buyle, P.
name: Cannon, J.
name: Walter, F.
name: Lundgren, A.
name: Michielsen, D.
name: Dejonghe, H.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We observed the CO(3-2) emission of the emission-line regions HubbleI, HubbleV, HubbleX, Holmberg 18, and the stellar emission-line object S28 in NGC6822 with the ESO Atacama Pathfinder Experiment (APEX) 12m telescope as part of its science verification. The very low system temperature of 130-180K enabled us to achieve detections in 4 single pointings and in a high spatial resolution 70''x70'' map of HubbleV. We compare the spectra with HI observations, obtained with the Australia Telescope Compact Array, of the same regions. In combination with previous multi-line CO observations, we perform a preliminary investigation of the physical conditions in HubbleV using a simple LTE model. We estimate the mass of the HubbleV region and the H_2/I_CO(3-2) conversion factor. Also, we show that HubbleV is located very near the line-width versus size relation traced by the Milky Way and LMC molecular clouds.
description: 4 pages, 3 figures, accepted for publication in the Astronomy & Astrophysics Letters special issue on the APEX science verification
Integrative network-based clustering of multiomics data for subtype analysis of breast and lung cancer
Creators: name: Pouryahya, Maryam
name: Oh, Jung Hun
name: Pedram  Javanmard
name: Mathews, James C.
name: Zehor Belkhatir
name: Tannenbaum, Allen R.
name: Deasy, Joseph O.
Publisher: name: F1000 Research Limited
Year: 2019

description: An effective integration of large-scale cancer genome can significantly improve clinical outcome predictions. The molecular complexity of neoplastic development occurs at a number of genomics, transcriptomics and epigenomics scales which makes the integration of multiomics vital. In addition, cancer-related genes do not act individually, but within an interaction networkthat must be explicitly incorporated into the integration procedure. In this study, we present a novel network-based integration method of multiomics data as well as a clustering technique founded on the Wasserstein (Earth Mover's) distance from the theory of optimal mass transport.
We applied our proposed method of aggregating multiomics and Wasserstein distance clustering (aWCluster) to perform the hierarchical clustering of invasive breast carcinoma and lung adenocarcinoma from The Cancer Genome Atlas (TCGA) project. The subtypes were characterized by the concordant effect of mRNA expression, DNA copy number alteration, and DNA methylation as well as the interaction network connectivity of the gene products. Applying aWCluster to breast and lung cancer TCGA data clusters the data into classes with significantly different survival rates. Also, aWCluster successfully recovers the well-known PAM50 molecular subtypes of breast cancer. In addition, aWCluster preserves the gene-specific data, which enables us method also identifies significant genes/ biological processes assigned to the clusters with increased mortality. Consequently, we believe aWCluster has the potential to discover novel subtypes and biomarkers by accentuating the genes that have concordant multiomics measurements in their interaction network, which are challenging to find without the network inference or with single omics analysis.
Vibrating giant spikes and the large-winding sector
Creators: name: Abbott, Michael C.
name: Aniceto, Inês
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The single spike is a rigidly rotating classical string configuration closely related to the giant magnon. We calculate bosonic and fermionic modes of this solution, from which we see that it is not supersymmetric. It can be viewed as an excitation above a hoop of string wound around the equator, in the same sense that the magnon is an excitation above an orbiting point particle. We find the operator which plays the role of the Hamiltonian for this sector, which compared to the magnon's E-J has the angular momentum replaced by a winding charge. The single spike solution is unstable, and we use the modes to attempt a semi-classical computation of its lifetime.
description: 30 pages, 5 figures. v2 has extra references and thanks
Phase-resolved ocean wave forecast with ensemble-based data assimilation
Creators: name: Wang, Guangyao
name: Pan, Yulin
Publisher: name: arXiv
Year: 2020
Subjects: subject: Atmospheric and Oceanic Physics (physics.ao-ph)
subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: Through ensemble-based data assimilation (DA), we address one of the most notorious difficulties in phase-resolved ocean wave forecast, regarding the deviation of numerical solution from the true surface elevation due to the chaotic nature of and underrepresented physics in the nonlinear wave models. In particular, we develop a coupled approach of the high-order spectral (HOS) method with the ensemble Kalman filter (EnKF), through which the measurement data can be incorporated into the simulation to improve the forecast performance. A unique feature in this coupling is the mismatch between the predictable zone and measurement region, which is accounted for through a special algorithm to modify the analysis equation in EnKF. We test the performance of the new EnKF-HOS method using both synthetic data and real radar measurements. For both cases (though differing in details), it is shown that the new method achieves much higher accuracy than the HOS-only method, and can retain the phase information of an irregular wave field for arbitrarily long forecast time with sequentially assimilated data.
Η χωρητικότητα της βραχύχρονης μνήμης αντικειμένων, γνωστών και άγνωστων προσώπων σε ηλικίες παιδιών από 7 ως 11 χρονών
Creators: name: Σουσαμίδου-Καραμπέρη, Αικατερίνη
Publisher: name: Παιδαγωγική Επιθεώρηση
Year: 2015

description: According to the cognitive theories the capacity of the processing system is limited. The storage capacity of the short-term memory and is development depend? on the sym¬bolic systems to which each unit belongs. Two main questions, referring to the short-term memory, were investigated (I) Does the storage capacity of the short-term memory vary between objects and faces (known and unknown) which belong to the same symbolic sys¬tem and (2) How docs this capacity change with increasing age? In order to answer these questions, 150 subjects [aged 7-11 years) were tested with recognition tasks which involved objects and faces. The results indicated that the storage capacity differs not only between objects and faces but also between known and unknown faces (the highest performance was obtained in objects lower in known faces and the lowest in unknown faces).
description: Παιδαγωγική Επιθεώρηση, Vol. 30 (2000)
DASA: a computational pipeline for differential ATAC-Seq analysis
Creators: name: Riva, Alberto
name: Bennett, Richard L
name: Kartika Venugopal
name: Guryanova, Olga
name: Brant, Jason O
name: Licht, Jonathan D
Publisher: name: F1000 Research Limited
Year: 2019

description: ATAC-Seq (Assay for Transposase-Accessible Chromatin with high-throughput Sequencing) is a powerful method to study genome-wide chromatin accessibility. Basic computational analysis of ATAC-Seq data is similar in principle to ChIP-seq analysis: reads are aligned to the genome, and peaks in the alignment pileup indicate the location of accessible regions.
Differential ATAC-Seq analysis aims at identifying chromatin accessibility differences between two conditions. This allows detection of altered chromatin modification signatures, or the effect of mutations that disrupt chromatin structure that may have profound downstream effects on gene regulation.
Identification of significantly different peaks between con- ditions is a challenging problem. Peak positions must be inferred from the data, and they may not be the same across samples or even biological replicates. The most commonly used signal measure, the number of reads falling inside each peak, is affected by total library size and by the total size of the accessible regions, requiring careful normalization.
DASA is a complete pipeline for differential ATAC-Seq analysis. Starting from alignment pileup and called peaks in two conditions, DASA identifies and quantifies common and unique peaks, finds peaks that are significantly different, associates differential peaks with nearby genes, and automatically generates a complete report including genome browser tracks.
Towards Network Traffic Monitoring Using Deep Transfer Learning
Creators: name: Dhillon, Harsh
name: Haque, Anwar
Publisher: name: arXiv
Year: 2021
Subjects: subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: Network traffic is growing at an outpaced speed globally. The modern network infrastructure makes classic network intrusion detection methods inefficient to classify an inflow of vast network traffic. This paper aims to present a modern approach towards building a network intrusion detection system (NIDS) by using various deep learning methods. To further improve our proposed scheme and make it effective in real-world settings, we use deep transfer learning techniques where we transfer the knowledge learned by our model in a source domain with plentiful computational and data resources to a target domain with sparse availability of both the resources. Our proposed method achieved 98.30% classification accuracy score in the source domain and an improved 98.43% classification accuracy score in the target domain with a boost in the classification speed using UNSW-15 dataset. This study demonstrates that deep transfer learning techniques make it possible to construct large deep learning models to perform network classification, which can be deployed in the real world target domains where they can maintain their classification performance and improve their classification speed despite the limited accessibility of resources.
description: Accepted by 2020 IEEE 19th International Conference on Trust, Security and Privacy in Computing and Communications (TrustCom)
Majorization framework for balanced lattice designs
Creators: name: Zhang, Aijun
name: Fang, Kai-Tai
name: Li, Runze
name: Sudjianto, Agus
Publisher: name: arXiv
Year: 2006
Subjects: subject: Statistics Theory (math.ST)
subject: FOS: Mathematics
subject: 62K15 (Primary)

description: This paper aims to generalize and unify classical criteria for comparisons of balanced lattice designs, including fractional factorial designs, supersaturated designs and uniform designs. We present a general majorization framework for assessing designs, which includes a stringent criterion of majorization via pairwise coincidences and flexible surrogates via convex functions. Classical orthogonality, aberration and uniformity criteria are unified by choosing combinatorial and exponential kernels. A construction method is also sketched out.
description: Published at http://dx.doi.org/10.1214/009053605000000679 in the Annals of Statistics (http://www.imstat.org/aos/) by the Institute of Mathematical Statistics (http://www.imstat.org)
Modifying the Symbolic Aggregate Approximation Method to Capture Segment Trend Information
Creators: name: Fuad, Muhammad Marwan Muhammad
Publisher: name: arXiv
Year: 2020
Subjects: subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: The Symbolic Aggregate approXimation (SAX) is a very popular symbolic dimensionality reduction technique of time series data, as it has several advantages over other dimensionality reduction techniques. One of its major advantages is its efficiency, as it uses precomputed distances. The other main advantage is that in SAX the distance measure defined on the reduced space lower bounds the distance measure defined on the original space. This enables SAX to return exact results in query-by-content tasks. Yet SAX has an inherent drawback, which is its inability to capture segment trend information. Several researchers have attempted to enhance SAX by proposing modifications to include trend information. However, this comes at the expense of giving up on one or more of the advantages of SAX. In this paper we investigate three modifications of SAX to add trend capturing ability to it. These modifications retain the same features of SAX in terms of simplicity, efficiency, as well as the exact results it returns. They are simple procedures based on a different segmentation of the time series than that used in classic-SAX. We test the performance of these three modifications on 45 time series datasets of different sizes, dimensions, and nature, on a classification task and we compare it to that of classic-SAX. The results we obtained show that one of these modifications manages to outperform classic-SAX and that another one slightly gives better results than classic-SAX.
description: International Conference on Modeling Decisions for Artificial Intelligence - MDAI 2020: Modeling Decisions for Artificial Intelligence pp 230-239
A study of Jupiter's aurorae with XMM-Newton
Creators: name: Branduardi-Raymont, G.
name: Bhardwaj, A.
name: Elsner, R. F.
name: Gladstone, G. R.
name: Ramsay, G.
name: Rodriguez, P.
name: Soria, R.
name: Waite, J. H.
name: Cravens, T. E.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present a detailed analysis of Jupiter's X-ray (0.2-10 keV) auroral emissions as observed by XMM-Newton in Nov. 2003 and compare it with that of an Apr. 2003 observation. We discover the existence of an electron bremsstrahlung component in the aurorae, which accounts for essentially all the X-ray flux above 2 keV: its presence had been predicted but never detected for lack of sensitivity of previous X-ray missions. This bremsstrahlung component varied significantly in strength and spectral shape over the 3.5 days covered by the Nov. 2003 observation, displaying substantial hardening of the spectrum with increasing flux. This variability may be linked to the strong solar activity taking place at the time, and may be induced by changes in the acceleration mechanisms inside Jupiter's magnetosphere. As in Apr. 2003, the auroral spectra below 2 keV are best fitted by a superposition of line emission most likely originating from ion charge exchange, with OVII playing the dominant role. We still cannot resolve conclusively the ion species responsible for the lowest energy lines (around 0.3 keV), so the question of the origin of the ions (magnetospheric or solar wind) is still open. It is conceivable that both scenarios play a role in what is certainly a very complex planetary structure. High resolution spectra of the whole planet obtained with the XMM-Newton RGS in the range 0.5-1 keV clearly separate emission lines (mostly of Fe) originating at low latitudes on Jupiter from the auroral lines due to O. These are shown to possess very broad wings which imply velocities of ~5000 km/s. Such speeds are consistent with the energies at which precipitating and charge exchanging O ions are expected to be accelerated in Jupiter's magnetosphere. Overall we find good agreement between our measurements and the predictions of recent models.
description: 16 pages, 17 figures, to be published in 'Astronomy and Astrophysics'
Η επίδραση διαφορετικών διαστάσεων κλίματος κινήτρων στη διαμόρφωση αντιλήψεων για εξωσχολική φυσική δραστηριότητα σε μαθητές λυκείου
Creators: name: Αδαμίδου, Ελένη Αδάμ
Publisher: name: Aristotle University of Thessaloniki
Year: 2015
Subjects: Κλίμα αυτονομίας
Κλίμα ελέγχου
Διαπλαισιακό μοντέλο κινήτρων
Autonomy climate
Control climate
Trans contextual model

description: Σκοπός της παρούσας έρευνας ήταν να μελετήσει την επίδραση του κλίματος αυτονομίας και ελέγχου που διαμορφώνεται στο μάθημα της Φυσικής Αγωγής, στο σχηματισμό αντιλήψεων για συμμετοχή σε εξωσχολικές φυσικές δραστηριότητες σε μαθητές Λυκείου. Στην έρευνα συμμετείχαν 302 μαθητές και μαθήτριες της Α’ και Β’ Λυκείου. Τα αποτελέσματα από τις αναλύσεις διακύμανσης επιβεβαίωσαν τη θεωρία του Διαπλαισιακού Μοντέλου Κινήτρων και έδειξαν ότι το κλίμα αυτονομίας αποτελεί σημαντικό δείκτη πρόβλεψης: α) των αυτόνομων κινήτρων στη Φυσική Αγωγή και στον ελεύθερο χρόνο, β) της πρόθεσης για εξωσχολική φυσική δραστηριότητα. Η ικανοποίηση των Βασικών Ψυχολογικών Αναγκών και ιδιαίτερα της ικανότητας και της αυτονομίας μεσολάβησαν στην επίδραση του κλίματος αυτονομίας στα κίνητρα και στις μεταβλητές της θεωρίας της Σχεδιασμένης Συμπεριφοράς. Το ελεγκτικό κλίμα δεν προέβλεψε τα χαμηλά αυτοκαθοριζόμενα κίνητρα στη σχολική Φυσική Αγωγή, και την πρόθεση για εξωσχολική φυσική δραστηριότητα. Η αποθάρρυνση των Βασικών Ψυχολογικών Αναγκών και ειδικά της αυτονομίας και της ικανότητας ενίσχυσε την ικανότητα του προβλεπτικού μοντέλου σε όλες σχεδόν τις μεταβλητές. Από τα ευρήματα προκύπτει ότι, η ικανοποίηση των Βασικών Ψυχολογικών Αναγκών μεσολαβεί στο περιβάλλον αυτονομίας που δημιουργεί ο καθηγητής Φυσικής Αγωγής στους μαθητές του και επιδρά θετικά στις αντιλήψεις τους για εξωσχολική φυσική δραστηριότητα.
description: The purpose of this research was to study the influence of the autonomy and controlling climate that are formed in the course of Physical Education, on the perceptions concerning the participation of high-school students in extracurricular physical activities. The survey involved 302 students of the 1st and 2nd grade. The results of the analyzes of variance confirmed the theory of Trans-Contextual Model and showed that autonomy climate is a crucial predictive indicator: a) of the autonomous motivation in physical education and leisure, b) in the intention for engagement in extracurricular physical activities. The satisfaction of basic psychological needs, and particularly that of capacity and autonomy mediated in the effect of autonomy climate on the motives and the variables of the theory of Planned Behavior. The controlling climate did not predict the low self-determined motivation in Physical Education, and the intention to take up extracurricular physical activities. The thwarting of Basic Psychological Needs and most importantly that of capacity and autonomy strengthened the capacity of the predictive model to the variables' majority. The findings prove that the satisfaction of basic psychological needs, not only mediated in autonomy climate established by the teacher of Physical Education but also contributed to their perceptions of extracurricular physical activity.
One flavor QCD
Creators: name: Creutz, Michael
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: One flavor QCD is a rather intriguing variation on the underlying theory of hadrons. In this case quantum anomalies remove all chiral symmetries. This paper discusses the qualitative behavior of this theory as a function of its basic parameters, exploring the non-trivial phase structure expected as these parameters are varied. Comments are made on the expected changes to this structure if the gauge group is made larger and the fermions are put into higher representations.
description: 29 pages, 8 figures; revision adds references and minor clarifications
Panorama actual de la producción literaria de Costa Rica. Entrevista a la poeta Mía Gallegos
Creators: name: Delgado Del Aguila, Jesús Miguel
Publisher: name: figshare
Year: 2024
Subjects: classificationCode: 470520
subject: Literature in Spanish and Portuguese

description: Delgado Del Aguila, Jesús Miguel (2023). «Panorama actual de la producción literaria de Costa Rica. Entrevista a la poeta Mía Gallegos», en: Diseminaciones. Revista de Investigación y Crítica en Humanidades y Ciencias Sociales. Santiago de Querétaro, México: Universidad Autónoma de Querétaro. Vol. 6, n.° 12, julio-diciembre, pp. 145-148. Disponible en https://revistas.uaq.mx/index.php/diseminaciones/article/view/940
Using Machine Learning to Calibrate Storm-Scale Probabilistic Guidance of Severe Weather Hazards in the Warn-on-Forecast System
Creators: name: Flora, Montgomery
name: Potvin, Corey K.
name: Skinner, Patrick S.
name: Handler, Shawn
name: McGovern, Amy
Publisher: name: arXiv
Year: 2020
Subjects: subject: Atmospheric and Oceanic Physics (physics.ao-ph)
subject: Machine Learning (cs.LG)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: A primary goal of the National Oceanic and Atmospheric Administration (NOAA) Warn-on-Forecast (WoF) project is to provide rapidly updating probabilistic guidance to human forecasters for short-term (e.g., 0-3 h) severe weather forecasts. Maximizing the usefulness of probabilistic severe weather guidance from an ensemble of convection-allowing model forecasts requires calibration. In this study, we compare the skill of a simple method using updraft helicity against a series of machine learning (ML) algorithms for calibrating WoFS severe weather guidance. ML models are often used to calibrate severe weather guidance since they leverage multiple variables and discover useful patterns in complex datasets. \indent Our dataset includes WoF System (WoFS) ensemble forecasts available every 5 minutes out to 150 min of lead time from the 2017-2019 NOAA Hazardous Weather Testbed Spring Forecasting Experiments (81 dates). Using a novel ensemble storm track identification method, we extracted three sets of predictors from the WoFS forecasts: intra-storm state variables, near-storm environment variables, and morphological attributes of the ensemble storm tracks. We then trained random forests, gradient-boosted trees, and logistic regression algorithms to predict which WoFS 30-min ensemble storm tracks will correspond to a tornado, severe hail, and/or severe wind report. For the simple method, we extracted the ensemble probability of 2-5 km updraft helicity (UH) exceeding a threshold (tuned per severe weather hazard) from each ensemble storm track. The three ML algorithms discriminated well for all three hazards and produced more reliable probabilities than the UH-based predictions. Overall, the results suggest that ML-based calibrations of dynamical ensemble output can improve short term, storm-scale severe weather probabilistic guidance
The Apparent Madness of Crowds: Irrational collective behavior emerging from interactions among rational agents
Creators: name: Sinha, Sitabhra
Publisher: name: arXiv
Year: 2006
Subjects: subject: Physics and Society (physics.soc-ph)
subject: Other Condensed Matter (cond-mat.other)
subject: Trading and Market Microstructure (q-fin.TR)
subject: FOS: Physical sciences
subject: FOS: Economics and business

description: Standard economic theory assumes that agents in markets behave rationally. However, the observation of extremely large fluctuations in the price of financial assets that are not correlated to changes in their fundamental value, as well as the extreme instance of financial bubbles and crashes, imply that markets (at least occasionally) do display irrational behavior. In this paper, we briefly outline our recent work demonstrating that a market with interacting agents having bounded rationality can display price fluctuations that are {\em quantitatively} similar to those seen in real markets.
description: 4 pages, 1 figure, to appear in Proceedings of International Workshop on "Econophysics of Stock Markets and Minority Games" (Econophys-Kolkata II), Feb 14-17, 2006
Zeitliche Einflussfaktoren auf die Fertigstellung von Bauprojekten - Ein Status Quo aktueller Forschungsschwerpunkte
Creators: name: Oprach, Svenja
name: Budau, Maximilian
Publisher: name: Karlsruhe
Year: 2019

description: Eine erfolgreiche Projektdurchführung ist von zahlreichen Einflussfaktoren abhängig. Gegenstand zahlreicher Forschungsstudien ist daher die Analyse und Bewertung dieser Faktoren mit dem Ziel, Prognosen in zukünftigen Bauprojekten durchführen zu können. Um für diese Faktoren ein Übersichtmodell zu erstellen, ist das Ziel dieser Veröffentlichung die Erstellung eines Klassifizierungssystems bzw. einer Taxonomie. Dieses beinhaltet die Priorität, Preis, Produkt, Platzierung, Personen und Partner, Prozesse sowie Problem-Lösung. In einer englisch-sprachigen Literaturrecherche wurden die Einflussfaktoren selektiert, in die Taxonomie eingeordnet und nach Anzahl der Nennungen ausgewertet. Weiter wurden aktuelle Forschungsmethoden zur Bewertung dieser Faktoren identifiziert. Besonders häufig wurden qualitative und stochastische Verfahren angewendet. Die Anzahl unterschiedlicher Einflussfaktoren verdeutlicht die Komplexität der Terminplanung und ebenfalls der Dokumentation relevanter Faktoren. Hierfür sind Methoden, die über qualitative und stochastische Verfahren hinausragen, notwendig.
Κατανόηση των σχέσεων απόρριψης από παιδιά σχολικής ηλικίας: αίτια, ερμηνείες, σύνδεση με τη μοναξιά
Creators: name: Αντωνιάδου, Ε.
name: Μπίμπου-Νάκου, Ι.
Publisher: name: Παιδαγωγική Επιθεώρηση
Year: 2015

description: The aim of the present study was to evaluate children's perceptions regarding peer re¬jection and feelings of loneliness. Recent studies claim that emerging peer social status in school predicts early adolescent and adult psycho social problems. Fifty five children aged 7 to 12 years old were interviewed individually and their interviews were taped. The con¬tent analysis of the material was assessed in relation 10 three factors: children's criteria for the definition of the peer rejection; children's attributions regarding rejected children's behavior and children's undemanding of feelings of loneliness and its relation to rejec¬tion. The results show that children seem to share a common base of attributions with the adults. Specifically, children relate the rejected behavior mainly with aggression and dis¬ruptive behavior. In addition, their attributions regarding the stability of the rejected behavior seem to favor ambivalent explanations. The findings are discussed within the attribution theory context.
description: Παιδαγωγική Επιθεώρηση, Vol. 30 (2000)
Unified storage systems for distributed Tier-2 centres
Creators: name: Cowan, Greig A.
name: Stewart, Graeme A.
name: Elwell, Andrew
Publisher: name: arXiv
Year: 2008
Subjects: subject: Distributed, Parallel, and Cluster Computing (cs.DC)
subject: Networking and Internet Architecture (cs.NI)
subject: FOS: Computer and information sciences

description: The start of data taking at the Large Hadron Collider will herald a new era in data volumes and distributed processing in particle physics. Data volumes of hundreds of Terabytes will be shipped to Tier-2 centres for analysis by the LHC experiments using the Worldwide LHC Computing Grid (WLCG). In many countries Tier-2 centres are distributed between a number of institutes, e.g., the geographically spread Tier-2s of GridPP in the UK. This presents a number of challenges for experiments to utilise these centres efficaciously, as CPU and storage resources may be sub-divided and exposed in smaller units than the experiment would ideally want to work with. In addition, unhelpful mismatches between storage and CPU at the individual centres may be seen, which make efficient exploitation of a Tier-2's resources difficult. One method of addressing this is to unify the storage across a distributed Tier-2, presenting the centres' aggregated storage as a single system. This greatly simplifies data management for the VO, which then can access a greater amount of data across the Tier-2. However, such an approach will lead to scenarios where analysis jobs on one site's batch system must access data hosted on another site. We investigate this situation using the Glasgow and Edinburgh clusters, which are part of the ScotGrid distributed Tier-2. In particular we look at how to mitigate the problems associated with ``distant'' data access and discuss the security implications of having LAN access protocols traverse the WAN between centres.
description: 12 pages, 14 figures. Contribution to CHEP 2007
ТАЛАНТЛИВЫЙ УЧЕНЫЙ И ПЕДАГОГ
Creators: name: Султанмагомедов Султанмагомед Магомедтагирович
name: Коршак Алексей Анатольевич
name: Шаммазов Айрат Мингазович
Publisher: name: Транспорт и хранение нефтепродуктов и углеводородного сырья
Year: 2020
Subjects: Павел Иванович Тугунов
90 лет со дня рождения
вклад в науку
кафедра гидравлики и гидромашин
ученики
факультет трубопроводного транспорта

description: 28 октября 2020 года исполнилось бы 90 лет видному ученому Павлу Ивановичу Тугунову, внесшему значительный вклад в развитие отрасли трубопроводного транспорта. В статье рассматривается тот значительный вклад, который П.И. Тугунов внес в развитие отрасли трубопроводного транспорта как ученый и педагог. Как ученый он был крупным специалистом в области «горячей» перекачки, последовательной перекачки разносортных нефти и нефтепродуктов по одному трубопроводу, перекачки нефти с растворенным газом, защиты трубопроводов и резервуаров от коррозии и ряде других. Им подготовлено пять докторов и более 20 кандидатов технических наук. Как проректор по научной работе, он способствовал становлению аспирантуры и научных исследований в Уфимском нефтяном институте. Возглавив кафедру гидравлики и гидромашин, П.И. Тугунов сформировал слаженный коллектив, способный решать самые разнообразные учебно-научные задачи. Об этом свидетельствуют результаты промышленных испытаний, многочисленные защиты кандидатских и докторских диссертаций. Дело П.И. Тугунова продолжают его ученики.
Document Similarity from Vector Space Densities
Creators: name: Rushkin, Ilia
Publisher: name: arXiv
Year: 2020
Subjects: subject: Computation and Language (cs.CL)
subject: Data Structures and Algorithms (cs.DS)
subject: FOS: Computer and information sciences
subject: I.2.7

description: We propose a computationally light method for estimating similarities between text documents, which we call the density similarity (DS) method. The method is based on a word embedding in a high-dimensional Euclidean space and on kernel regression, and takes into account semantic relations among words. We find that the accuracy of this method is virtually the same as that of a state-of-the-art method, while the gain in speed is very substantial. Additionally, we introduce generalized versions of the top-k accuracy metric and of the Jaccard metric of agreement between similarity models.
description: 12 pages, 3 figures
ИСТОРИЯ СТАНОВЛЕНИЯ И РАЗВИТИЯ ФАКУЛЬТЕТА ТРУБОПРОВОДНОГО ТРАНСПОРТА УГНТУ
Creators: name: Шамилов Хирамагомед Шехмагомедович
Publisher: name: Транспорт и хранение нефтепродуктов и углеводородного сырья
Year: 2020
Subjects: факультет трубопроводного транспорта
юбилей
история факультета трубопроводного транспорта
два этапа создания
образование в области трубопроводного транспорта

description: В этом году одному из крупнейших подразделений Уфимского государственного нефтяного технического университета (УГНТУ) факультету трубопроводного транспорта (ФТТ) исполняется 45 лет. Но если мы посмотрим на эмблему факультета, на ней гордо красуется дата «1952». В чем же дело? Ответ на этот вопрос вы узнаете из данной статьи. Предлагаем вам углубиться в историю факультета и узнать, чем факультет живет сегодня.
Measurements of the doping effects on the in-plane paraconductivity in cuprate superconductors
Creators: name: Vidal, Felix
name: Ramallo, Manuel V.
name: Ferro, Gonzalo
name: Veira, Jose Antonio
Publisher: name: arXiv
Year: 2006
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We will summarize here some of our measurements of the superconducting fluctuations effects on the in-plane electrical resistivity (the so-called in-plane paraconductivity) in La_{2-x}Sr_xCuO_4 thin films with different Sr content. Our results suggest that these superconducting fluctuations effects are not related to the opening of a pseudogap in the normal-state of underdoped compounds.
description: 7 pages and 3 figures (LaTeX and .eps). Contribution to the NATO Advanced Research Workshop on New Challenges in Superconductivity: Experimental Advances and Emerging Theories (University of Miami Workshop on Unconventional Superconductivity)
Extreme-SAX: Extreme Points Based Symbolic Representation for Time Series Classification
Creators: name: Fuad, Muhammad Marwan Muhammad
Publisher: name: arXiv
Year: 2020
Subjects: subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: Time series classification is an important problem in data mining with several applications in different domains. Because time series data are usually high dimensional, dimensionality reduction techniques have been proposed as an efficient approach to lower their dimensionality. One of the most popular dimensionality reduction techniques of time series data is the Symbolic Aggregate Approximation (SAX), which is inspired by algorithms from text mining and bioinformatics. SAX is simple and efficient because it uses precomputed distances. The disadvantage of SAX is its inability to accurately represent important points in the time series. In this paper we present Extreme-SAX (E-SAX), which uses only the extreme points of each segment to represent the time series. E-SAX has exactly the same simplicity and efficiency of the original SAX, yet it gives better results in time series classification than the original SAX, as we show in extensive experiments on a variety of time series datasets.
description: International Conference on Big Data Analytics and Knowledge Discovery - DaWaK 2020: Big Data Analytics and Knowledge Discovery pp 122-130
Ion specificity and anomalous electrokinetic effects in hydrophobic nanochannels
Creators: name: Huang, David M.
name: Cottin-Bizonne, Cecile
name: Ybert, Christophe
name: Bocquet, Lyderic
Publisher: name: arXiv
Year: 2007
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We demonstrate with computer simulations that anomalous electrokinetic effects, such as ion specificity and non-zero zeta potentials for uncharged surfaces, are generic features of electro-osmotic flow in hydrophobic channels. This behavior is due to the stronger attraction of larger ions to the ``vapour--liquid-like'' interface induced by a hydrophobic surface. An analytical model involving a modified Poisson--Boltzmann description for the ion density distributions is proposed, which allows the anomalous flow profiles to be predicted quantitatively. This description incorporates as a crucial component an ion-size-dependent hydrophobic solvation energy. These results provide an effective framework for predicting specific ion effects, with important implications for the modeling of biological problems.
A kpc-scale resolved study of unobscured and obscured star-formation activity in normal galaxies at z = 1.5 and 2.2 from ALMA and HiZELS
Creators: name: Cheng, Cheng
name: Ibar, Edo
name: Smail, Ian
name: Molina, Juan
name: Sobral, David
name: Escala, Andres
name: Best, Philip
name: Cochrane, Rachel
name: Gillman, Steven
name: Swinbank, Mark
name: Ivison, R. J.
name: Huang, Jia-Sheng
name: Hughes, Thomas M.
name: Villard, Eric
name: Cirasuolo, Michele
Publisher: name: arXiv
Year: 2020
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We present Atacama Large Millimeter/Submillimeter Array (ALMA) continuum observations of a sample of nine star-forming galaxies at redshifts 1.47 and 2.23 selected from the High-$z$ Emission Line Survey (HiZELS). Four galaxies in our sample are detected at high significance by ALMA at a resolution of 0.25'' at rest-frame 355 $μ$m. Together with the previously observed H$α$ emission, from adaptive optics-assisted integral-field-unit spectroscopy (0.15'' resolution), and F606W and F140W imaging from the Hubble Space Telescope (0.2'' resolution), we study the star-formation activity, stellar and dust mass in these high-redshift galaxies at $\sim$kpc-scale resolution. We find that ALMA detection rates are higher for more massive galaxies ($M_*>10^{10.5}$ M$_\odot$) and higher [N {\sc ii}]/H$α$ ratios ($>0.25$, a proxy for gas-phase metallicity). The dust extends out to a radius of 8 kpc, with a smooth structure, even for those galaxies presenting clumpy H$α$ morphologies. The half-light radii ($R_{\rm dust}$) derived for the detected galaxies are of the order $\sim$4.5 kpc, more than twice the size of submillimetre-selected galaxies at a similar redshift. Our global star-formation rate estimates -- from far-IR and extinction-corrected H$α$ luminosities -- are in good agreement. However, the different morphologies of the different phases of the interstellar medium suggest complex extinction properties of the high-redshift normal galaxies.
description: 13 pages, 7 figures, MNRAS accepted
ПРИМЕНЕНИЕ ФЕРРОМАГНИТНЫХ ПРИСАДОК ДЛЯ ПОВЫШЕНИЯ ГИДРАВЛИЧЕСКОЙ ЭФФЕКТИВНОСТИ МАГИСТРАЛЬНЫХ НЕФТЕПРОДУКТОПРОВОДОВ
Creators: name: Чэнь Ян
name: Ташбулатов Радмир Расулевич
name: Валеев Анвар Рашитович
name: Сагадеева Алена Дмитриевна
Publisher: name: Транспорт и хранение нефтепродуктов и углеводородного сырья
Year: 2020
Subjects: нефтепродуктопровод
гидравлическое сопротивление
пропускная способность
шероховатость
присадки
объемный расход
магнитная жидкость

description: В статье приведены исследования ферромагнитных присадок, которые способны уменьшить внутреннюю шероховатость трубопровода и тем самым снизить гидравлическое сопротивление. Разработана установка для проведения экспериментов по определению эффективности ферромагнитных присадок. Приведены результаты экспериментов, которые показали, что присадки позволяют увеличить объемный расход перекачиваемой по трубе среды.
MPEC 2024-A01 : 2011 AL24
Creators: name: Minor Planet Center Staff
Publisher: name: The Minor Planet Center
Year: 2024
Subjects: subject: Small Solar System bodies
valueUri: http://astrothesaurus.org/uat/1469

description: The Minor Planet Electronic Circulars contain information on unusual minor planets, routine data on comets and natural satellites, and occasional editorial announcements.  They are published on behalf of Division F of the International Astronomical Union by the Minor Planet Center, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
РАЗРАБОТКА ИНТЕГРАЛЬНОГО КРИТЕРИЯ ВЫБОРА ХАРАКТЕРИСТИК ТРУБОПРОВОДА, ПОВЫШАЮЩИХ ЕГО ДОЛГОВЕЧНОСТЬ В АРКТИЧЕСКИХ УСЛОВИЯХ
Creators: name: Юсупов Руслан Марселевич
name: Коробков Геннадий Евгеньевич
name: Ишбердина Зиля Рауфовна
name: Зарипов Руслан Фанисович
Publisher: name: Транспорт и хранение нефтепродуктов и углеводородного сырья
Year: 2020
Subjects: трубопровод
отрицательные температуры
Крайний Север
характеристики трубопровода
интегральный показатель

description: Предлагается разработка методики, позволяющая оценить характеристики трубопровода по величине интегрального показателя, который поможет обобщить все требуемые характеристики трубопровода. Методика включает следующие положения: идентификация факторов, оказывающих наиболее значимое влияние на характеристики трубопровода; ранжирование факторов по значимости; расчет интегрального показателя критерия характеристик трубопровода.