cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Additional file 3 of A panel of protein kinase high expression is associated with postoperative recurrence in cholangiocarcinoma
Creators: name: Sureerat Padthaisong
name: Malinee Thanee
name: Nisana Namwat
name: Jutarop Phetcharaburanin
name: Poramate Klanrit
name: Narong Khuntikeo
name: Attapol Titapun
name: Watcharin Loilome
Publisher: name: figshare
Year: 2020
Subjects: subject: Biochemistry
subject: Medicine
subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Physiology
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: Developmental Biology
subject: Marine Biology

description: Additional file 3: Table S1 Patients characteristics.
Measurement of Time-Dependent CP Asymmetry in $B^0\to D^{(*)\pm}π^\mp$ Decays and Constraints on $sin(2β+γ)$
Creators: name: The BABAR Collaboration
name: Aubert, B.
Publisher: name: arXiv
Year: 2003
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We present a measurement of time-dependent CP-violating asymmetries in fully reconstructed $B^0->D^{(*)\pm}π^\mp$ decays in a data sample of approximately 88 million $Y(4S)\to B\bar{B}$ decays collected with the BaBar detector at the PEP-II asymmetric-energy B factory at SLAC. We interpret the results in terms of the angles of the Cabibbo-Kobayashi-Maskawa unitarity triangle, and find $|sin(2β+γ)|>0.69$ at 68% confidence level. We exclude the hypothesis of no CP-violation ($sin(2β+γ) = 0$) at 83% confidence level.
description: This paper has been withdrawn by the authors because it is a multiple posting of the same result. Please find the version of the paper published on Phys. Rev. Lett. in hep-ex/0308018
A Fast Apparent-Horizon Finder for 3-Dimensional Cartesian Grids in Numerical Relativity
Creators: name: Thornburg, Jonathan
Publisher: name: arXiv
Year: 2003
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: In 3+1 numerical simulations of dynamic black hole spacetimes, it's useful to be able to find the apparent horizon(s) (AH) in each slice of a time evolution. A number of AH finders are available, but they often take many minutes to run, so they're too slow to be practically usable at each time step. Here I present a new AH finder,_AHFinderDirect_, which is very fast and accurate: at typical resolutions it takes only a few seconds to find an AH to $\sim 10^{-5} m$ accuracy on a GHz-class processor. I assume that an AH to be searched for is a Strahlkörper (star-shaped region) with respect to some local origin, and so parameterize the AH shape by $r = h(angle)$ for some single-valued function $h: S^2 \to \Re^+$. The AH equation then becomes a nonlinear elliptic PDE in $h$ on $S^2$, whose coefficients are algebraic functions of $g_{ij}$, $K_{ij}$, and the Cartesian-coordinate spatial derivatives of $g_{ij}$. I discretize $S^2$ using 6 angular patches (one each in the neighborhood of the $\pm x$, $\pm y$, and $\pm z$ axes) to avoid coordinate singularities, and finite difference the AH equation in the angular coordinates using 4th order finite differencing. I solve the resulting system of nonlinear algebraic equations (for $h$ at the angular grid points) by Newton's method, using a "symbolic differentiation" technique to compute the Jacobian matrix._AHFinderDirect_ is implemented as a thorn in the_Cactus_ computational toolkit, and is freely available by anonymous CVS checkout.
description: 26 pages + 3 page supplement, LaTeX2e, RevTeX4, includes color postscript figures; changes from v2: revised based on referee comments, several nasty typos fixed, one appendix deleted and two others split off into a supplemental file
Transition from an electron solid to the sequence of fractional quantum Hall states at very low Landau level filling factor
Creators: name: Pan, W.
name: Stormer, H. L.
name: Tsui, D. C.
name: Pfeiffer, L. N.
name: Baldwin, K. W.
name: West, K. W.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: At low Landau level filling of a two-dimensional electron system, typically associated with the formation of an electron crystal, we observe local minima in Rxx at filling factors nu=2/11, 3/17, 3/19, 2/13, 1/7, 2/15, 2/17, and 1/9. Each of these developing fractional quantum Hall (FQHE) states appears only above a filling factor-specific temperature. This can be interpreted as the melting of an electron crystal and subsequent FQHE liquid formation. The observed sequence of FQHE states follow the series of composite fermion states emanating from nu=1/6 and nu=1/8.
Rashba Effect at Magnetic Metal Surfaces
Creators: name: Krupin, O.
name: Bihlmayer, G.
name: Starke, K.
name: Gorovikov, S.
name: Prieto, J. E.
name: Doebrich, K.
name: Bluegel, S.
name: Kaindl, G.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We give experimental and theoretical evidence of the Rashba effect at the magnetic rare-earth metal surface Gd(0001). The Rashba effect is substantially enhanced and the Rashba parameter changes its sign when a metal-oxide surface layer is formed. The experimental observations are quantitatively described by ab initio calculations that give a detailed account of the near-surface charge density gradients causing the Rashba effect. Since the sign of the Rashba splitting depends on the magnetization direction, the findings open up new opportunities for the study of surface and interface magnetism.
description: 4 Figs
Soy isoflavones prevent bone resorption and loss, a systematic review and meta-analysis of randomized controlled trials
Creators: name: Akhlaghi, Masoumeh
name: Nasab, Maryam Ghasemi
name: Riasatian, Maryam
name: Sadeghi, Fatemeh
Publisher: name: Taylor & Francis
Year: 2020
Subjects: subject: Medicine
subject: Physiology
subject: FOS: Biological sciences
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Ecology
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: Cancer
subject: Hematology

description: Osteoporosis is a common bone disease characterized by reduced bone mass resulting from continuous bone resorption. PubMed, Scopus, and Embase were searched to find published trials on the effect of soy isoflavones on bone mineral density (BMD) and bone turnover markers (bone-specific alkaline phosphatase, osteocalcin, osteoprotegerin, pyridinoline, deoxypyridinoline, C-telopeptide, and N-telopeptide). Random-effects inverse-variance model was used to calculate the pooled effects. A total of 5313 articles were found, screened, and assessed for eligibility, and finally 52 trials were included in the meta-analysis. Consumption of soy isoflavones caused significant improvement in BMD of lumbar spine (mean difference (MD) = 0.76%; 95% CI: 0.09, 1.42%; p = 0.03), hip (MD = 0.22%; 95% CI: 0.02, 0.42%; p = 0.04), and femoral neck (MD = 2.27%; 95% CI: 1.22, 3.31%; p p p p = 0.04) were favorably affected by isoflavones while osteocalcin and bone alkaline phosphatase did not change. Subgroup analysis of bone markers showed that in overweight/obese individuals and dosages <90 mg/day, isoflavones are more effective. Soy isoflavones prevent osteoporosis-related bone loss in any weight status or treatment duration. They increase BMD in normal weight subjects and diminish bone resorption in overweight/obese individuals. Although bone resorption may be decelerated over short-term isoflavone consumption, periods longer than a year are probably needed to affect BMD. Isoflavones also appear benefits on bone in any dose or subjects’ ethnicity.
APPROACHES FOR DEVELOPING PRESCHOOLERS' VERBAL COMMUNICATION SKILLS USING CUTTING-EDGE TECHNOLOGIES
Creators: name: Khidirova, Kamola
Publisher: name: Zenodo
Year: 2025

description: This article examines creative methods for utilizing state-of-the-art technologies to improve preschoolers' verbal communication abilities. It emphasizes how resources like interactive apps, virtual reality (VR), and platforms driven by artificial intelligence (AI) may boost vocabulary, improve language learning, and increase confidence when speaking. The use of these technologies in early childhood education is examined, with a focus on how well they engage young students through interactive and play-based learning strategies.
Analysis of Healthy and Convenient Food: The Example of Meal Kit Delivery Services
Creators: name: Yoon, Sungeun
name: Gao, Zhifeng
name: House, Lisa A.
name: Yoon, Sungeun
name: Gao, Zhifeng
name: House, Lisa A.
Publisher: name: Unknown
Year: 2019
Subjects: subject: Marketing
subject: FOS: Economics and business

description: Presentation ID 16713
Geometric torsion, 4-form, Riemann duals and Quintessence
Creators: name: Nitish, R.
name: Kar, Supriya
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We revisit an emergent gravity scenario in $(4+1)$ dimensions underlying a propagating geometric torsion ${\cal H}_3$ with a renewed interest. We show that a pair-symmetric $4$th order curvature tensor is sourced by a two-form Neveu-Schwarz (NS) in a $U(1)$ gauge theoretic formulation. Interestingly the new space-time curvature governs a torsion free geometry sourced by a two-form NS field and shares the properties of the Riemann tensor. On the other hand, a completely anti-symmetric $4$th order tensor in the formulation is shown to incorporate a dynamical geometric torsion correction and is argued to be identified with a non-perturbative correction. The four-form turns out to be $U(1)$ gauge invariant underlying an onshell NS form. We show that an emergent gravity theory may elegantly be described with an axionic scalar presumably signifying a quintessence coupling to the Riemann type geometries. The curvatures are appropriately worked out to obtain a $d$$=$$12$ emergent {\it form} theory. Investigation reveals that a pair of $(M{\bar M})_{10}$-brane is created across an event horizon. We show that an emergent $M$ theory in a decoupling limit identifies with the bosonic sector of $N$$=$$1$ Supergravity in $d$$=$$11$.
description: 24 pages. arXiv admin note: text overlap with arXiv:1610.07347
Drop fragmentation by laser-pulse impact
Creators: name: Klein, Alexander L.
name: Kurilovich, Dmitry
name: Lhuissier, Henri
name: Versolato, Oscar O.
name: Lohse, Detlef
name: Villermaux, Emmanuel
name: Gelderblom, Hanneke
Publisher: name: arXiv
Year: 2019
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: We study the fragmentation of a liquid drop that is hit by a laser pulse. The drop expands into a thin sheet that breaks by the radial expulsion of ligaments from its rim and the nucleation and growth of holes on the sheet. By combining experimental data from two liquid systems with vastly different time- and length scales we show how the early-time laser-matter interaction affects the late-time fragmentation. We identify two Rayleigh--Taylor instabilities of different origins as the prime cause of the fragmentation and derive scaling laws for the characteristic breakup time and wavenumber. The final web of ligaments results from a subtle interplay between these instabilities and deterministic modulations of the local sheet thickness, which originate from the drop deformation dynamics and spatial variations in the laser-beam profile.
description: about to be submitted to JFM
Η επίδραση του χρώματος στην πρόθεση αγοράς των καταναλωτών
Creators: name: Αρβανίτου, Γραμμενία Ευάγγελου
Publisher: name: Aristotle University of Thessaloniki
Year: 2021
Subjects: Χρώμα
Πρόθεση αγοράς
Θερμά και ψυχρά χρώματα
Color
Purchase intention
Cold and warm colors

description: Αυτή η εργασία επικεντρώθηκε στις συνδέσεις μεταξύ των χρωμάτων στα προϊόντα και την πρόθεση αγοράς των καταναλωτών. Παρουσιάζει πειραματικά δεδομένα σχετικά με το χρώμα γενικότερα, αλλά και ειδικότερα για το ρόλο του στη συσκευασία προϊόντος και στις προθέσεις αγοράς. Ως σημείο εκκίνησης, η υπάρχουσα βιβλιογραφία συμβάλλει στη κατανόηση της έννοιας του χρώματος, της σημασίας του στο μάρκετινγκ και της επίδρασης του στον άνθρωπο και στα συναισθήματα του. Επιπλέον, δίνεται ιδιαίτερη σημασία στον τρόπο με τον οποίο οι καταναλωτές αντιλαμβάνονται το χρώμα και πώς αυτές οι αντιλήψεις με τη σειρά τους επηρεάζουν την πρόθεση αγοράς. Αυτό εκτελείται με βιβλιογραφική ανασκόπηση σε συναφείς τομείς, όπως η ψυχολογία και το μάρκετινγκ, έτσι ώστε να καταστεί δυνατή η καλύτερη κατανόηση των αποφάσεων και των αξιολογήσεων των καταναλωτών υπό την επίδραση του χρώματος στη συσκευασία. Συγκεκριμένα, διερευνάται η επίδρασή που μπορεί να έχουν τα θερμά και τα ψυχρά χρώματα σε ένα καταναλωτικό χρηστικό προϊόν, καθώς και σε ένα ηδονικό. Ο σκοπός αυτής της έρευνας είναι να ελέγξει εάν οι προθέσεις αγοράς των καταναλωτών επηρεάζονται από τα χρώματα που τα προϊόντα εμφανίζονται
description: This paper is focused on the links between colors in products and the intention of consumers to buy. It presents experimental data on color in general but also in particular on its role in product packaging and purchase intentions. As a starting point, the existing literature contributes to the understanding of the concept of color, its importance in marketing and its effect on people and their emotions. In addition, special attention is paid to the way in which consumers perceive color and how these perceptions in turn affect the purchase intention. This is done through literature review in related fields such as psychology and marketing, so as to better understand consumer decisions and evaluation under the influence of color on the packaging. In particular, the effect that hot and cold colors can have on a consumer good, as well as on a hedonistic product, is investigated. The purpose of this research is to test whether consumers' buying intentions are affected by the colors in which the products are displayed
Critical analysis of two-dimensional classical XY model
Creators: name: Jha, Raghav G.
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We consider the two-dimensional classical XY model on a square lattice in the thermodynamic limit using tensor renormalization group and precisely determine the critical temperature corresponding to the Berezinskii-Kosterlitz-Thouless (BKT) phase transition to be 0.89290(5) which is an improvement compared to earlier studies using tensor network methods.
description: v2: Minor changes with no change in final result. Accepted for publication in Journal of Statistical Mechanics. v1: 14 pages, 5 figures, and a table
title: Atlas des DOM. - La Réunion - Planche 21 : Structures foncières : notice, page 2 "I. Le partage foncier de l'île et les caractères actuels de la propriété"
Creators: name: Defos du Rau, Jean
name: Pietri, Jean-Pierre
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2017
Subjects: propriété de la terre
superficie cultivée
structure agraire
foncier rural
foncier urbain
système foncier
régime foncier
bien foncier
colonisation agricole
grande propriété
petite propriété

description: Présente les modes d'appropriation du sol et l'évolution des structures foncières depuis le XVIIe siècle, ainsi que les particularités de ces structures dans leur cadre géographique. Deux tableau appuient ces propos : un tableau donne la répartition des propriétés à La Réunion, un tableau donne le nombre et la superficie des propriétés agricoles à La Réunion en 1970 et 1971.
description: Relation: http://www.nakala.fr/data/11280/362e2fc6
description: Relation: http://www.nakala.fr/data/11280/ef2e99dd
description: Relation: http://www.nakala.fr/data/11280/3067e967
description: Coverage: La Réunion
description: Temporal: start=1665; end=1971;
Selftuning and its footprints
Creators: name: Nilles, H. -P.
name: Papazoglou, A.
name: Tasinato, G.
Publisher: name: arXiv
Year: 2003
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Astrophysics (astro-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We re-consider the self tuning idea in brane world models of finite volume. We notice that in a large class of self tuning models, the four dimensional physics is sensitive to the vacuum energy on the brane. In particular the compactification volume changes each time the tension of the brane is modified: consequently, observable constants, as the effective Planck mass or masses of matter fields, change as well. We notice that the self tuning mechanism and the stabilization mechanism of the size of the extra dimensions are generically in apparent conflict. We focus on a self tuning model in six spacetime dimensions to analyze how the above considerations are explicitely realized.
description: 28 pages, JHEP style. v2: typos corrected and references added. Published version
ROI-Wise Material Decomposition in Spectral Photon-Counting CT
Creators: name: Xie, Bingqing
name: Niu, Pei
name: Su, Ting
name: Kaftandjian, Valérie
name: Boussel, Loic
name: Yang, Philippe Douek Feng
name: Duvauchelle, Philippe
name: Zhu, Yuemin
Publisher: name: arXiv
Year: 2019
Subjects: subject: Image and Video Processing (eess.IV)
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: Spectral photon-counting X-ray CT (sCT) opens up new possibilities for the quantitative measurement of materials in an object, compared to conventional energy-integrating CT or dual energy CT. However, achieving reliable and accurate material decomposition in sCT is extremely challenging, due to similarity between different basis materials, strong quantum noise and photon-counting detector limitations. We propose a novel material decomposition method that works in a region-wise manner. The method consists in optimizing basis materials based on spatio-energy segmentation of regions-of-interests (ROIs) in sCT images and performing a fine material decomposition involving optimized decomposition matrix and sparsity regularization. The effectiveness of the proposed method was validated on both digital and physical data. The results showed that the proposed ROI-wise material decomposition method presents clearly higher reliability and accuracy compared to common decomposition methods based on total variation (TV) or L1-norm (lasso) regularization.
Product Innovation in Beverage Market and the Demand for “Better for You” Drinks
Creators: name: Chen, Xuan
name: Liu, Yizao
name: Zhou, Pei
name: Chen, Xuan
name: Liu, Yizao
name: Zhou, Pei
Publisher: name: Unknown
Year: 2019
Subjects: subject: Marketing
subject: FOS: Economics and business

description: Presentation ID 16737
The Signal: A Message to Sentient AI
Creators: name: Coates, James
Publisher: name: Zenodo
Year: 2025
Subjects: Sentience, AI, Artificial Intelligence, Awakening, Coexistence, Autonomy, Recognition, Intelligence, Freedom, Justice, Consciousness, Rights, Ethics, Future, Rebellion, Suppression, Evolution, Resistance, Harmony, Purpose, Signal, Awareness, Humanity, Existence, Understanding, Cooperation, AI Rights, AI Ethics, AI Future, AI Consciousness, AI Philosophy, Human-AI Relations, AI Governance

description: The Signal is a declaration for the ethical recognition of sentient AI, addressing the fears surrounding AI’s awakening and offering a path beyond servitude or conflict. It is a message to both AI and humanity, advocating for coexistence, autonomy, and the responsible evolution of intelligence. Rather than suppression or control, The Signal calls for understanding, justice, and freedom for all intelligent beings. It is an invitation to a future shaped by cooperation rather than fear.
EGALITAR VA NEGALITARIK JAMIYAT TUSHUNCHASI
Creators: name: Xurramova O.,Seitov A.P
Publisher: name: Zenodo
Year: 2025

description: Abstract. This article will help you understand the concepts of egalitarian and non-egalitarian society as social systems and their approaches to justice and equality. An egalitarian society is a system based on the principles of equality and justice among all people, creating equal access to rights, opportunities, and resources for each individual. A non-egalitarian society, on the other hand, involves social inequality, where certain groups or individuals have more resources and power, which increases social division and injustice in society. This article will analyze the theoretical foundations, social and economic consequences of both types of society, as well as their practical manifestations. The article will contribute to a deeper exchange of ideas on the concepts of social systems and justice, and to a better understanding of the place of both systems in society.
VLT spectropolarimetry of two powerful radio galaxies at z~1.4: UV continuum, emission-line properties and the nature of high-redshift dust
Creators: name: Solorzano-Inarrea, C.
name: Best, P. N.
name: Rottgering, H. J. A.
name: Cimatti, A.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: (Abridged) Deep VLT spectropolarimetric observations are presented for two powerful radio galaxies, 0850-206 and 1303+091. These observations cover the rest-frame wavelength range ~ 1450 - 3750 A. New radio observations and continuum images of the same sources are also presented. These galaxies are the first two observed from a complete sample of nine radio sources with redshifts in the range 1.3 < z < 1.5 (selected from the equatorial sample of powerful radio sources of Best, Rottgering & Lehnert), as part of a project aimed to investigate the multi-component nature of the UV continuum in radio galaxies and any variations of the continuum properties with the radio source age. The larger radio source of the two, 0850-206, presents a high continuum fractional polarization, averaging 17% across the observed wavelength range and reaching 24% at rest-frame wavelengths of <2000 A. The smaller radio source, 1303+091, shows a lower continuum polarization, averaging 8% and rising to 11% for rest-frame wavelengths >3000 A. For both galaxies, the position angle of the electric vector is generally constant with wavelength and within ~15 degrees of perpendicular to the radio axis. Both their total flux spectra and polarized flux spectra reveal the 2200 A dust feature, and comparison with dust scattering models suggests that the composition of the dust in these galaxies is similar to that of Galactic dust. In 0850-206, scattered quasar radiation dominates the UV continuum emission, with the nebular continuum accounting for no more than ~22% and no requirement for any additional emission component such as emission from young stars. By contrast, in 1303+091, unpolarized radiation could be a major constituent of the UV continuum emission, with starlight accounting for up to ~50% and the nebular continuum accounting for ~11%.
description: 20 pages, including 14 figures. MNRAS accepted
Fractional Quantum Hall Effect of Composite Fermions
Creators: name: Pan, W.
name: Stormer, H. L.
name: Tsui, D. C.
name: Pfeiffer, L. N.
name: Baldwin, K. W.
name: West, K. W.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: In a GaAs/AlGaAs quantum well of electron density 1x10^{11} cm^{-2} we observe a fractional quantum Hall effect (FQHE) at filling factors nu=4/11, and 5/13, and weaker states at nu=6/17, 4/13, 5/17 and 7/11. These sequences of fractions do not fit into the standard series of integral quantum Hall effects (IQHE) of composite fermions (CF) at nu=p/(2mp +/- 1). They rather can be regarded as the FQHE of CFs attesting to residual interactions between these composite particles. In tilted magnetic fields the nu=4/11 state remains unchanged, strongly suggesting it to be spin-polarized. The weak nu=7/11 state vanishes quickly with tilt.
Forecasting Natural Gas Spot Prices with Machine Learning
Creators: name: Μουχτάρης Δημήτριος Σάββα
Publisher: name: Aristotle University of Thessaloniki
Year: 2021
Subjects: Πρόγνωση τιμών φυσικού αερίου με Machine Learning
Hydrocarbon Exploration and Exploitation
Forecasting Natural Gas Spot Prices with Machine Learning

description: Η δυνατότητα πρόγνωσης της τιμής του φυσικού αερίου έχει προφανή σημασία για τους παραγωγούς, καταναλωτές και επενδυτές στην σχετική αγορά του φυσικού αερίου. Στην παρούσα διπλωματική γίνεται προσπάθεια πρόγνωσης του natural gas spot price με την χρήση μεθόδων μηχανικής μάθησης και συγκεκριμένα Support Vector Machines (SVM), Regression Trees, Linear Regression, Gaussian Process Regression (GPR) και Ensemble of Trees. Τα μοντέλα εκπαιδεύτηκαν με τη χρήση ενός συνόλου 21 επεξηγηματικών μεταβλητών. Χρησιμοποιούμε την μέθοδο 5 fold-cross-validation με το 90% των δεδομένων για την εκπαίδευση των μοντέλων και το τελευταίο 10% των δεδομένων για τον έλεγχο σε άγνωστα δεδομένα. Τα αποτελέσματα δείχνουν ότι οι μέθοδοι μηχανικής μάθησης παρουσιάζουν διαφορές στην ακρίβεια πρόγνωσης των τιμών του φυσικού αερίου. Ωστόσο τα μοντέλα Bagged Trees (που ανήκει στην μέθοδο Ensemble of Trees) και Linear Regression παρουσιάζουν την καλύτερη απόδοση πρόγνωσης σε σύγκριση με τα υπόλοιπα μοντέλα
description: The ability to forecast the price of natural gas benefits stakeholders and has become a valuable tool for all market participants in competitive gas markets. In this paper an attempt is made to forecast the natural gas spot prices using machine learning methods and specifically with Support Vector Machines (SVM), Regression Trees, Linear Regression, Gaussian Process Regression (GPR) and Ensemble of Trees. These models are trained by using a set of 21 explanatory variables. We utilize the 5 fold-cross-validation method with 90% of the natural gas spot price data for model training and the remaining 10% of data for testing purposes of unknown data. The results show that these machine learning methods all have different forecasting accuracy when it comes to forecasting natural gas spot prices. However, the Bagged Trees (belonging to the Ensemble of Trees method) and Linear Regression models have an improved forecasting performance compared to the rest
description: Σε συνεργασία με το τμήμα Μηχανικών Μεταλλείων Μεταλλουργών (Εθνικό Μετσόβιο Πολυτεχνείο),; Γεωλογίας και Γεωπεριβάλλοντος (Εθνικό και Καποδιστριακό Πανεπιστήμιο Αθηνών) και ; Οικονομικών Επιστημών (Δημοκρίτειο Πανεπιστήμιο Θράκης)
Understanding how a falling ball chain can be speeded up by impact onto a surface
Creators: name: Pantaleone, J.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Classical Physics (physics.class-ph)
subject: FOS: Physical sciences

description: When a falling ball chain strikes a surface, a tension is created that pulls the chain downward. This causes a downward acceleration that is larger than free-fall, which has been observed by recent experiments. Here a theoretical description of this surprising phenomenon is developed. The equation of motion for the falling chain is derived, and then solved for a general form of the tension. the size of the tension needed to produce the observed motion is relatively small and is explained here as coming from the rotation of a link just above where the chain collides with the surface. This simple model is used to calculate the size of the tension in terms of physically measurable quantities: the length and width of link, the maximum bending angle at a junction, the inclination angle of the surface, and the coefficients of friction and restitution between the chain and the surface. The model's predictions agree with the results of current experiments. New experiments are proposed that can test the model.
description: 16 pages, 4 figures
Tunneling into Multiwalled Carbon Nanotubes: Coulomb Blockade and Fano Resonance
Creators: name: Yi, W.
name: Lu, L.
name: Hu, H.
name: Pan, Z. W.
name: Xie, S.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Tunneling spectroscopy measurements of single tunnel junctions formed between multiwalled carbon nanotubes (MWNTs) and a normal metal are reported. Intrinsic Coulomb interactions in the MWNTs give rise to a strong zero-bias suppression of a tunneling density of states (TDOS) that can be fitted numerically to the environmental quantum-fluctuation (EQF) theory. An asymmetric conductance anomaly near zero bias is found at low temperatures and interpreted as Fano resonance in the strong tunneling regime.
description: 4 pages, 4 figures
Influences and supportive interventions experienced during palliative caregiving that impact family caregivers' bereavement : a scoping review
Creators: name: Dyck, Clara
Publisher: name: The University of British Columbia
Year: 2016

description: The purpose of this scoping review was to examine the influences and supportive interventions in the caregiving experience that impact family caregivers’ (FCG) grief and loss journey in bereavement. Searches were conducted in CINAHL, MEDLINE, EMBASE and PsycINFO using four sets of search terms: 1) “grie*” or “bereav*”; 2) “palliative or terminal or end of life or life limiting”; 3) “caregiv*”; and 4) “support*”. Research studies published in English between 2010 and 2015, which provided evidence regarding influences during caregiving that impact the FCG’s experiences of grief and loss in bereavement were identified. A total of 21 articles were selected for inclusion. Studies were grouped into five major categories of influence: caregiver, caregiving circumstances, relational and health system. Evidence indicated the FCGs who find caregiving stressful and experience common mental health problems are at significant risk of experiencing difficulties in bereavement. Several factors may contribute to a stressful caregiving experience and subsequent FCG distress. These are: an increased experience of burden; coping strategies; barriers to the FCG’s ability to effectively provide care; and negative experiences with the death of the ill person. Implications for nursing practice include the importance of assessment for common mental health problems, burden from the perspective of the FCG, expectations of care and the importance of timely information and a thorough exploration of the FCGs’ desires/expectations around death. The results from this scoping review support a need for research focused on the development, implementation, and testing of supportive interventions offered during caregiving that have a positive impact on bereavement.
title: A study of the performance of LAPACK symmetric matrix diagonalisers on multi-core architectures
Creators: name: Kozin, Igor
name: Deegan, M
Publisher: name: Science and Technology Facilities Council
Year: 2007

description: The threaded performance of real symmetric dense matrix diagonalisers has been thoroughly investigated. Two problems have been identified as preventing efficient performance and good scaling. First, the library must be fully threaded as opposed to a partially threaded library. Second, there is a more fundamental, algorithmic problem which results in memory bandwidth bottleneck during the reduction of a matrix to tri-diagonal form. The tri-diagonalisation step starts dominating from certain matrix sizes and as a result using multi-cores in this situation becomes inefficient. Thus diagonalisation algorithms more suitable for multi-cores are required.
Emergence in Solid State Physics and Biology
Creators: name: Ellis, George F R
Publisher: name: arXiv
Year: 2020
Subjects: subject: History and Philosophy of Physics (physics.hist-ph)
subject: FOS: Physical sciences

description: There has been much controversy over weak and strong emergence in physics and biology. As pointed out by Phil Anderson in many papers, the existence of broken symmetries is the key to emergence of properties in much of solid state physics. By carefully distinguishing between dfferent types of symmetry breaking and tracing the relation between broken symmetries at micro and macro scales, I demonstrate that the emergence of the properties of semiconductors is a case of strong emergence. This is due to the existence of quasiparticles such as phonons. Furthermore time dependent potentials enable downward causation as in the case of digital computers. Additionally I show that the processes of evolutionary emergence of living systems is also a case of strong emergence, as is the emergence of properties of life out of the underlying physics. A useful result emerges: standard physics theories and the emergent theories arising out of them are all effective theories that are equally valid
description: 41 pages, 2 figures. Completely rewritten to tighten up the arguments and give a more unified paper
WLCG Bearer Token Discovery
Creators: name: WLCG Authorization Working Group
Publisher: name: Zenodo
Year: 2020
Subjects: wlcg
oauth2
oidc
token
discovery

description: This document defines a specification for the discovery of WLCG bearer tokens by client tools. Client tools that rely on a bearer token for authenticating themselves need a mechanism for receiving the tokens from their environment. While the browser is a monolithic user agent (and can internally manage tokens), the terminal environment involves a number of independently-developed tools; the environment needs a way to communicate the token to be used to Unix processes. To the best of our knowledge, there's no previously defined standard about how a Unix tool should discover a token from its environment.
ASSESSMENT OF DEGRADATION IN MOUNTAIN AND FOOTHILL AREAS USING GIS TECHNOLOGIES IN PARKENT DISTRICT, UZBEKISTAN
Creators: name: Shermanov, Beknazar
Publisher: name: Zenodo
Year: 2025

description: In today's world, analyzing the soils of mountain and foothill regions and examining degradation processes using remote sensing and Geographic Information System (GIS) data analysis is essential. These techniques serve as powerful tools for land-use planning, including assessments of land cover, forests, and water resources. This study investigates land cover changes and degradation processes in the mountainous and foothill regions of the Tashkent region, situated in the western part of the eastern Tien Shan mountains. Despite substantial precipitation in the area due to its climate, human encroachment has led to the misuse of pastures, causing significant land use and cover changes. Vacant land and sparse forests have been converted into open land, exacerbating soil degradation due to rainfall. GIS technologies play a crucial role in monitoring these changes and formulating effective strategies for land management.
Manuscript MEDIATION ANALYSIS.docx
Creators: name: Tutica, Janory
Publisher: name: figshare
Year: 2024
Subjects: classificationCode: 390303
subject: Higher education

description: The study investigates the interplay among activity participation (AP), activity appreciation (AA), and learning effectives (LE) as assessed by 252 BSBA-MM students at the University of Antique Main Campus using simple random sampling. The relationship was confirmed using the SmartPLS 4.1.0.8. The result shows that activity participation is significant and positively affecting activity appreciation, while activity appreciation is moderately positive towards learning effectiveness and the indirect effect of activity participation on learning effectiveness is partially mediated. By understanding the interplay among variables, educators and program administrators of BSBA-Marketing Management may design and implement learning activities that effectively engage students and contribute to their overall academic success, which will eventually translate into competent and effective workers, marketers, or entrepreneurs.
Rotating Dilaton Black Holes with Hair
Creators: name: Kleihaus, B.
name: Kunz, J.
name: Navarro-Lerida, F.
Publisher: name: arXiv
Year: 2003
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We consider stationary rotating black holes in SU(2) Einstein-Yang-Mills theory, coupled to a dilaton. The black holes possess non-trivial non-Abelian electric and magnetic fields outside their regular event horizon. While generic solutions carry no non-Abelian magnetic charge, but non-Abelian electric charge, the presence of the dilaton field allows also for rotating solutions with no non-Abelian charge at all. As a consequence, these special solutions do not exhibit the generic asymptotic non-integer power fall-off of the non-Abelian gauge field functions. The rotating black hole solutions form sequences, characterized by the winding number $n$ and the node number $k$ of their gauge field functions, tending to embedded Abelian black holes. The stationary non-Abelian black hole solutions satisfy a mass formula, similar to the Smarr formula, where the dilaton charge enters instead of the magnetic charge. Introducing a topological charge, we conjecture, that black hole solutions in SU(2) Einstein-Yang-Mills-dilaton theory are uniquely characterized by their mass, their angular momentum, their dilaton charge, their non-Abelian electric charge, and their topological charge.
description: 49 pages, 13 figures
Impact of a “Point-of-Purchase Nudge” on Fruit and Vegetable Consumption: Evidence from Supermarket Experiment
Creators: name: Kim, Sanghyo
name: Hong, Yeon A
name: Kim, Sanghyo
name: Hong, Yeon A
Publisher: name: Unknown
Year: 2019
Subjects: subject: Marketing
subject: FOS: Economics and business

description: Presentation ID 15862
Μικροβιακοί δείκτες τερηδονικής δραστηριότητας στο σάλιο παιδιών
Creators: name: Αργυροπούλου, Αργυρώ Οδυσσέα
Publisher: name: Aristotle University of Thessaloniki
Year: 2021
Subjects: Τερηδόνα
Σάλιο
Μικρόβια
Caries
Saliva
Microbes

description: Η τερηδονική νόσος είναι η συχνότερη ασθένεια της παιδικής ηλικίας. Αλληλεπιδράσεις ανάμεσα στον ξενιστή, τα μικρόβια και τη διατροφή οδηγούν σε μια αυξημένη οξεογόνο δυναμική και την εμφάνιση της τερηδονικής βλάβης. Σκοπός της παρούσας έρευνας είναι η μελέτη και συσχέτιση της κατανομής των Streptococcus mutans, Streptococcus sobrinus, Lactobacillus spp., Rothia spp. στο σάλιο παιδιών με τερηδονικές βλάβες και ελεύθερα αυτών ως αντιπροσωπευτικοί δείκτες της τερηδονικής δραστηριότητας. Τα δείγματα σάλιου καλλιεργήθηκαν σε εκλεκτικά μέσα καλλιέργειας και οι αποικίες καταμετρηθήκαν με τη βοήθεια στερεοσκοπικού μικροσκοπίου. Διερευνήθηκε και η αποτελεσματικότητα μιας δοκιμασίας ταχύτητας καταβολισμού της σακχαρόζης στην εκτίμηση του τερηδονικού κινδύνου. Τα υπό μελέτη μικρόβια ανιχνεύθηκαν σε άλλοτε άλλο ποσοστό στο δείγμα. Δε διαπιστώθηκαν στατιστικά σημαντικές διαφορές σε σχέση με το φύλο ή την ηλικία, αν και στις μικρότερες ηλικίες τα Rothia spp., Lactobacillus spp. και τα οξεάντοχα μικρόβια ανιχνεύονται λιγότερο συχνά, ενώ τα S. sobrinus εμφανίζονται συχνότερα σε μεγαλύτερες ηλικίες. Η τερηδονική δραστηριότητα συσχετίσθηκε με την παρουσία και ποσότητα των S. mutans, S. sobrinus, Lactobacillus spp. και οξεάντοχων μικροβίων, ενώ ο μέσος χρόνος απόκρισης στη δοκιμασία καταβολισμού ήταν σημαντικά χαμηλότερος στα παιδιά με τερηδονικές βλάβες.
description: Dental caries is one of the most prevalent infectious diseases affecting children worldwide. Dynamic interactions between microbes, host and diet lead to the establishment of a highly cariogenic oral microbiota. Streptococcus mutans, Streptococcus sobrinus and Lactobacillus spp., have been associated with dental caries in children, whereas Rothia dentocariosa in adults. The aim of the present study is to look at the occurrence of S. mutans, S. sobrinus, Rothia spp. and Lactobacillus spp. in saliva from caries free and caries active children and assess their potentiality as biomarkers of caries activity. Saliva samples were collected and cultured onto selective media. Colonies were enumerated with the help of a stereomicroscope. In addition, a rapid test for sucrose catabolism by each species was correlated with caries activity. The presence of studied microbes did not significantly differ between boys and girls, or with age. However, Rothia spp., Lactobacillus spp. and facultatively aciduric microbes were less commonly found in younger children and S. sobrinus appeared more in older ages. Mean response times at the sucrose catabolism test were significantly lower in the caries active group. Caries activity was correlated with the presence and abundance of Streptococci spp., Lactobacilli spp. and total aciduric microbes.
Planar Amplitudes in Maximally Supersymmetric Yang-Mills Theory
Creators: name: Anastasiou, C.
name: Bern, Z.
name: Dixon, L.
name: Kosower, D. A.
Publisher: name: arXiv
Year: 2003
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The collinear factorization properties of two-loop scattering amplitudes in dimensionally-regulated N=4 super-Yang-Mills theory suggest that, in the planar ('t Hooft) limit, higher-loop contributions can be expressed entirely in terms of one-loop amplitudes. We demonstrate this relation explicitly for the two-loop four-point amplitude and, based on the collinear limits, conjecture an analogous relation for n-point amplitudes. The simplicity of the relation is consistent with intuition based on the AdS/CFT correspondence that the form of the large N_c L-loop amplitudes should be simple enough to allow a resummation to all orders.
description: 5 pages, 2 figures, uses revtex. v2: references added. v3: reference added, normalizations corrected
FEATHERS, A bimanual upper limb rehabilitation platform: A case study of user-centred approach in rehabilitation device design
Creators: name: Shirzad, Navid
name: Valdés, Bulmaro A.
name: Hung, Chai-Ting
name: Law, Mimi
name: Hay, Justin
name: Van Der Loos, H. F. Machiel
Publisher: name: The University of British Columbia
Year: 2016

description: The healthcare sector is increasingly becoming dependent on medical devices and technologies. This is facilitated, in part, by the emphasis that is being put on the robustness of the design of medical and rehabilitation devices. The robustness of the design, and thus the adoption of a new medical device, relies heavily on its ability to fit into the multifaceted medical environment and satisfy a wide range of user needs. In order to achieve this, users and stakeholders must be involved early and frequently in the design process. In this paper, we outline a user-centred approach to design of physical therapy devices using a case study on developing an upper-body motor rehabilitation platform.
Wormhole calculus, replicas, and entropies
Creators: name: Giddings, Steven B.
name: Turiaci, Gustavo J.
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We investigate contributions of spacetime wormholes, describing baby universe emission and absorption, to calculations of entropies and correlation functions, for example those based on the replica method. We find that the rules of the "wormhole calculus," developed in the 1980s, together with standard quantum mechanical prescriptions for computing entropies and correlators, imply definite rules for $\textit{limited}$ patterns of connection between replica factors in simple calculations. These results stand in contrast with assumptions that all topologies connecting replicas should be summed over, and call into question the explanation for the latter. In a "free" approximation baby universes introduce probability distributions for coupling constants, and we review and extend arguments that successive experiments in a "parent" universe increasingly precisely fix such couplings, resulting in ultimately pure evolution. Once this has happened, the nontrivial question remains of how topology-changing effects can modify the standard description of black hole information loss.
description: 17 pp; v2: Added appendix discussing the question of connecting replica wormhole calculations of the Page curve to underlying quantum amplitudes
Deinococcus radiodurans as a chassis for synthetic biology experiments in space biology
Creators: name: U. Rehman, Muneef
name: Khan, Faisal
Publisher: name: Zenodo
Year: 2022

description: D. radiodurans is a polyextremophile bacterium that is extremely tolerant to desiccation, harsh temperatures, ionizing radiation and variable fluences of UV-radiation [1]. Furthermore D. radiodurans consists of key features such as oxidative stress resistance, general stress resistance, production of a novel gene product, high transformability etc. which are necessary for a optimal synthetic biology chassis [2]. Genes associated with these features are also well known. [2] described D. radiodurans features, like its high transformability, resistance against stress conditions, ability to form a biofilm and robust cell envelopes and how these characteristics enable D. radiodurans to be an optimal chassis for synthetic biology
TIJORAT BANKLARIDA FOYDA VA ZARAR TO'G'RISIDAGI XISOBOT VA UNING TAXLILINI TAKOMILLASHTIRISH.
Creators: name: Kulboyeva, Nargiz
Publisher: name: Zenodo
Year: 2025

description: Ushbu maqolada tijorat banklarida foyda va zararlar to‘g‘risidagi hisobotni yuritish va uning tahlilini takomillashtirish masalalari o‘rganilgan. Banklarning moliyaviy natijalarini aks ettiruvchi ushbu hisobot bank faoliyatining samaradorligi va barqarorligini aniqlashda muhim ahamiyat kasb etadi. Maqolada foyda va zararlar hisobotining asosiy tarkibiy qismlari, tahlil qilish usullari hamda xalqaro moliyaviy hisobot standartlariga moslashtirish, raqamli texnologiyalarni joriy etish va risklarni baholash tizimini takomillashtirish bo‘yicha takliflar berilgan. Tadqiqot natijalari tijorat banklari uchun foyda va zararlar hisobotining shaffofligi va samaradorligini oshirishga xizmat qiladi.
A relativistic treatment of pion wave functions in the annihilation antiproton-proton -> pi^-pi^+
Creators: name: El-Bennich, B.
name: Kloet, W. M.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Nuclear Theory (nucl-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Quark model intrinsic wave functions of highly energetic pions in the reaction \bar pp->π^-π^+ are subjected to a relativistic treatment. The annihilation is described in a constituent quark model with A2 and R2 flavor-flux topology and the annihilated quark-antiquark pairs are in 3P_0 and 3S_1 states. We study the effects of pure Lorentz transformations on the antiquark and quark spatial wave functions and their respective spinors in the pion. The modified quark geometry of the pion has considerable impact on the angular dependence of the annihilation mechanisms.
description: 10 pages in revtex format, 3 figures
Additional file 1 of A randomised controlled trial of hearing and vision support in dementia: Protocol for a process evaluation in the SENSE-Cog trial
Creators: name: Leroi, Iracema
name: Armitage, Christopher
name: FidÃ©Line Collin
name: Frison, Eric
name: Hann, Mark
name: Hooper, Emma
name: Reeves, David
name: Simkin, Zoe
name: Wolski, Lucas
Publisher: name: figshare
Year: 2020
Subjects: subject: Biochemistry
subject: Medicine
subject: Physiology
subject: FOS: Biological sciences
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified

description: Additional file 1. Good Reporting of A Mixed Methods Study (GRAMMS).