cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Equilibrium Properties of Double-Screened-Dipole-Barrier SINIS Josephson Junctions
Creators: name: Nikolic, Branislav K.
name: Freericks, J. K.
name: Miller, P.
Publisher: name: arXiv
Year: 2001
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We report on a self-consistent microscopic study of the DC Josephson effect in $SINIS$ junctions where screened dipole layers at the $SN$ interfaces generate a double-barrier multilayered $SIN$ structure. Our approach starts from a microscopic Hamiltonian defined on a simple cubic lattice, with an attractive Hubbard term accounting for the short coherence length superconducting order in the semi-infinite leads, and a spatially extended charge distribution (screened dipole layer) induced by the difference in Fermi energies of the superconductor $S$ and the clean normal metal interlayer $N$. By employing the temperature Green function technique, in a continued fraction representation, the influence of such spatially inhomogeneous barriers on the proximity effect, current-phase relation, critical supercurrent and normal state junction resistance, is investigated for different normal interlayer thicknesses and barrier heights. These results are of relevance for high-$T_c$ grain boundary junctions, and also reveal one of the mechanisms that can lead to low critical currents of apparently ballistic $SNS$ junctions while increasing its normal state resistance in a much weaker fashion. When the $N$ region is a doped semiconductor, we find a substantial change in the dipole layer (generated by a small Fermi level mismatch) upon crossing the superconducting critical temperature, which is a new signature of proximity effect and might be related to recent Raman studies in Nb/InAs bilayers.
description: 15 pages, 15 EPS embedded figures
title: Exposure rate of patients leaving a nuclear medicine department after a SPECT MPI (Myocardial Perfusion Imaging) study.
title: Ρυθμός έκθεσης ασθενών κατά την αποχώρηση από ένα τμήμα Πυρηνικής Ιατρικής μετά από μελέτη SPECT MPI (Σπινθηρογράφημα Αιμάτωσης του Μυοκαρδίου)
titleType: AlternativeTitle
Creators: name: Παπαγιαννόπουλος, Γεώργιος
Publisher: name: Πανεπιστήμιο Δυτικής Αττικής
Year: 2024
Subjects: Exposure rates
Public safety
Inverse square law
Nuclear medicine
D-SPECT

description: The aim of this study is to measure the rate of radiation emitted by patients that have undergone a SPECT MPI scan. According to the protocol of the MPI scan (stress-only or stress rest condition) the patient is intravenously administered the standardized radiopharmaceutical doses. The patient is still emitting radiation after the examination potentially exposing members of the public to radiation. The SPECT system used has CZT (Cadmium Zinc Telluride) detectors, which are generally more sensitive and accurate than photomultiplier detector SPECT systems. The data used are strictly based on Myocardial Perfusion Imaging examinations as the Onassis Cardiac Surgery Center specializes in Cardiology. Radiation exposure rates were measured after Stress Only and Stress/Rest examination protocols. The analysis of data showed that for distances of less than 3 meters from the patient’s body the Inverse Square Law is not exactly confirmed, and a corrected mathematical formula must be used, that represents the proper exposure rates. The problem with the inverse square law for short distances is that it is based on point source assumption. In this case the source is the patient’s body that the radiopharmaceutical circulates within. Analyzing the data, we notice that the experimental measurements are closer to the inverse square law at long distances. For the safety of the general public, the very low exposure rates of the Tc99m and its very short half-life of 6 hours, used in the MPI examinations should not worry anyone if the instructions for radiation protection are followed. In fact, these instructions are quite strict for the specific parameters of the MPI protocols.
Mass Production of IIA and IIB dS Vacua
Creators: name: Cribiori, Niccolò
name: Kallosh, Renata
name: Linde, Andrei
name: Roupec, Christoph
Publisher: name: arXiv
Year: 2019
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We describe several applications of the recently proposed mass production procedure, where multiple moduli are stabilized in a dS vacuum, in supergravity models inspired by string theory. The construction involves a small downshift of an initial supersymmetric Minkowski minimum to a supersymmetric AdS minimum, and a consequent small uplift to a dS minimum. Our type IIA examples include dS stabilization in a 7-moduli model with $[SL(2, \mathbb{R})]^7$ tree level symmetry, and its simplified version, a 3-moduli STU model. In these models, we use uplifting anti-D6 branes. In type IIB models, we present 2- and 3-moduli examples of stable dS vacua in CY three-folds, with an uplifting anti-D3 brane. These include K3 fibration models, a CICY model and a multi-hole Swiss cheese model. We also address the issue whether this procedure is limited to a very small parameter range or if large deviations from the progenitor Minkowski vacuum are possible.
description: 47 pages, 17 figures, 16 tables; v2: published version, corrected typos
title: A study of novel superconducting states in hybrid ferromagnetic-superconducting metamaterials and thin film devices
Creators: name: Stewart, Rhea
Publisher: name: University of St Andrews
Year: 2019

description: In hybrid mesoscopic systems the Meissner response of a superconducting film can be very different from its bulk behaviour. For instance, in normal (N) superconductor (S) bilayers screening can be greatly enhanced depending on the relative material properties and interface conditions. Furthermore, with the addition of ferromagnetic (F) layers comes the possibility of generating a paramagnetic screening response due to spin triplet pairs. Such pairs are produced from the mixing of opposing microscopic orders within S (which conventionally hosts electron pairs of opposite spin and momenta) and F (inside which spin symmetry is broken). The net result is a conversion of a fraction of the pairs to an odd-frequency s-wave triplet state. Any resultant modifications to the screening manifest in the flux profile across a sample which is directly probed using low energy muon spin rotation (LEμSR). Results of LEμSR experiments involving layered systems comprised of N, S and F elements are presented within chapter 3. A discrepancy between the pre-existing quasiclassical theory and measured flux profiles in the presence of an F layer was observed. A large enhancement to the flux lowering which could not be interpreted within the traditional S/F proximity picture was found. New theoretical developments have since suggested that coupled to direct electronic proximity effects within these systems is an additional electromagnetic component. Chapter 4 presents the results of analysing LEμSR data using a spatial flux profile consistent with new theory. In doing so, the observed anomalous enhancement could be successfully reconciled with the electromagnetic proximity effect. Subsequent experimental work in chapters 4 - 6 sought to test the main predictions of the theory by manipulating S/F interfaces within a variety of different structures. In all tested cases the theory provided an excellent description of experiment suggesting the importance of considering electromagnetic effects within S/F hybrid systems.
A fractional-spin phase in the power-law Kondo model
Creators: name: Vojta, Matthias
name: Bulla, Ralf
Publisher: name: arXiv
Year: 2001
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We consider a Kondo impurity coupled to a fermionic host with a power-law density of states near the Fermi level, rho(epsilon) ~ |epsilon|^r, with exponent r<0. Using both perturbative renormalization group (poor man's scaling) and numerical renormalization group methods, we analyze the phase diagram of this model for ferromagnetic and antiferromagnetic Kondo coupling. Both sectors display non-trivial behavior with several stable phases separated by second-order transitions. In particular, on the ferromagnetic side there is a stable intermediate-coupling fixed point with universal properties corresponding to a fractional ground-state spin.
description: 5 pages, 4 figs; (v2) extended discussion and added refs; final version as published
Oribatula (Zygoribatula) exilis subsp. exilis exilis (Nicolet 1855
Creators: name: Murvanidze, Maka
name: Cilbircioğlu, Cihan
name: Özdemir, Esengül
name: Inak, Emre
Publisher: name: Zenodo
Year: 2020
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Sarcoptiformes
Oribatulidae
Oribatula
Oribatula exilis
Oribatula (zygoribatula) exilis exilis (nicolet, 1855)

description: Oribatula (Zygoribatula) exilis exilis (Nicolet, 1855)
 Material – Two specimens in Karadedeoğlu Village, Tekkeyaylası Area, Taşköprü forest, N 41° 22′ 24.45′′, E 34° 23′ 25.15′′, alt. = 1224 m, 2 August 2018, tree trunk of P.nigra; 8 specimens in Çiftlik Village, Tekçam Area, Taşköprü forest, 15 May 2018, N 41° 15′ 19.75′′, E34° 14′ 06.85′′, alt. = 1329 m, tree bark and debris of P. nigra .
 Previous record in Turkey – Ankara (Grobler et al. 2005).
 Global distribution – Holarctic.
 Ecology – All types of habitats.
description: Published as part of Murvanidze, Maka, Cilbircioğlu, Cihan, Özdemir, Esengül & Inak, Emre, 2020, Checklist of oribatid mites (Acari: Oribatida) of the Central Black Sea basin of Turkey with new records for the country, pp. 255-277 in Persian Journal of Acarology 9 (3) on page 265, DOI: 10.22073/pja.v9i3.61909, http://zenodo.org/record/5236444
Has China’s Domestic Food Price Become More Stable? An Investigation Based on a Structural Break Regime Switching Model
Creators: name: LU, Jie
name: Tang, Zhong
name: Lin, Yujie
name: Zhu, Xinkai
name: Liu, Wenyong
name: LU, Jie
name: Tang, Zhong
name: Lin, Yujie
name: Zhu, Xinkai
name: Liu, Wenyong
Publisher: name: Unknown
Year: 2014
Subjects: Agricultural and Food Policy

description: The stability of grain prices relates closely to the development of China’s economy, social stability and quality of Chinese people’s life. However, with the gradual openness of China’s grain market and series of newly-issued China’s grain policies, the volatility characteristics of China’s grain price may experience some structural changes and whether it becomes more stable still remains controversial. In this paper, we investigate the fluctuation characteristics of some main grain prices during the past two decades by using Structural Break Regime Switching Model and the Structural Break Model. We find that China’s grain price has become more stable since 2004 with narrowing low and high growth regimes. The implementation of Minimum Purchasing Price Policy and the semi-separation of domestic and international grain markets may explain part of the reasons for the stabilization.
Non-Optimal Behavior and Estimation of Risk Preferences
Creators: name: Guan, Zhengfei
name: Wu, Feng
name: Guan, Zhengfei
name: Wu, Feng
Publisher: name: Unknown
Year: 2014
Subjects: subject: Agricultural Finance
subject: Production Economics
subject: Risk and Uncertainty
subject: Corner Solution
subject: Non-optimal Behavior
subject: Risk Preferences
subject: Budget Constraint
subject: Monte Carlo Simulation
subject: GMM Estimation.

description: Non-optimal behavior due to budget constraint or credit availability is commonly observed in agricultural production. Not accounting for non-optimal behavior would result in biased estimates of risk preferences. A generalized model is developed in this article for estimating agents’ risk attitude accommodating both optimal and non-optimal behaviors. Results from Monte Carlo simulations suggest that estimation based on the proposed model yields consistent and unbiased risk preference estimates, whereas estimation based on the conventional modeling procedure produces biased results.
Spiral arms and instability within the AFGL 4176 mm1 disc
Creators: name: Johnston, K. G.
name: Hoare, M. G.
name: Beuther, H.
name: Kuiper, R.
name: Kee, N. D.
name: Linz, H.
name: Boley, P.
name: Maud, L. T.
name: Ahmadi, A.
name: Robitaille, T. P.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We present high-resolution (30 mas or 130 au at 4.2 kpc) Atacama Large Millimeter/submillimeter Array observations at 1.2 mm of the disc around the forming O-type star AFGL 4176 mm1. The disc (AFGL 4176 mm1-main) has a radius of ~1000 au and contains significant structure, most notably a spiral arm on its redshifted side. We fitted the observed spiral with logarithmic and Archimedean spiral models. We find that both models can describe its structure, but the Archimedean spiral with a varying pitch angle fits its morphology marginally better. As well as signatures of rotation across the disc, we observe gas arcs in CH$_3$CN that connect to other millimetre continuum sources in the field, supporting the picture of interactions within a small cluster around AFGL 4176 mm1-main. Using local thermodynamic equilibrium modelling of the CH$_3$CN K-ladder, we determine the temperature and velocity field across the disc, and thus produce a map of the Toomre stability parameter. Our results indicate that the outer disc is gravitationally unstable and has already fragmented or is likely to fragment in the future, possibly producing further companions. These observations provide evidence that disc fragmentation is one possible pathway towards explaining the high fraction of multiple systems around high-mass stars.
description: Accepted by Astronomy & Astrophysics Letters, 8 pages (2 pages appendices), 11 figures
Ανάπτυξη εφαρμογής για έξυπνα κινητά για τη δημιουργία προγράμματος εκγύμνασής και παροχή συστάσεων
Creators: name: Καλογήρου, Στυλιανή
Publisher: name: Πανεπιστήμιο Πειραιώς
Year: 2024
Subjects: subject: Εφαρμογή
subject: Φυσική κατάσταση
subject: Πρόγραμμα εκγύμνασης
subject: Συστάσεις

description: Η σύγχρονη τεχνολογία προσφέρει λύσεις για όσους δυσκολεύονται να βρουν χρόνο για άσκηση λόγω αυξημένων επαγγελματικών ή άλλων υποχρεώσεων. Σε έναν κόσμο όπου οι εργάσιμες ώρες αυξάνονται και η σωματική και πνευματική κόπωση είναι έντονη, πολλοί αποφεύγουν τη γυμναστική, συχνά δικαιολογώντας την έλλειψη χρόνου. Ωστόσο, με την κατάλληλη καθοδήγηση, ακόμη και λίγα λεπτά άσκησης μπορούν να είναι εξαιρετικά αποτελεσματικά. Σκοπός αυτής της διατριβής είναι η ανάπτυξη μιας εφαρμογής που χρησιμοποιεί τεχνητή νοημοσύνη και μηχανική μάθηση για να προτείνει εξατομικευμένα προγράμματα γυμναστικής, προσαρμοσμένα στις ανάγκες και τα δεδομένα του χρήστη, όπως ηλικία, βάρος, επίπεδο φυσικής κατάστασης και διαθέσιμο χρόνο. Η εφαρμογή αυτή θα επιτρέπει τη δημιουργία προγραμμάτων που βελτιστοποιούν την καύση θερμίδων, προσδιορίζοντας τον κατάλληλο χρόνο άσκησης και ανάπαυσης, ενώ θα προσαρμόζεται δυναμικά στις αλλαγές στις επιδόσεις του χρήστη. Χάρη στις σύγχρονες τεχνολογίες, όπως τα smartwatches και οι εφαρμογές fitness, η προσαρμοσμένη καθοδήγηση δεν είναι πλέον προνόμιο μόνο των επαγγελματιών αθλητών. Η εφαρμογή αυτή στοχεύει να προσφέρει εύκολες και αποτελεσματικές λύσεις για την άσκηση, κάνοντας την πρόσβαση σε εξατομικευμένη εκπαίδευση πιο προσβάσιμη από ποτέ.
Maximally localized Wannier functions within the (L)APW+LO method
Creators: name: Tillack, Sebastian
name: Gulans, Andris
name: Draxl, Claudia
Publisher: name: arXiv
Year: 2019
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We present a robust algorithm that computes (maximally localized) Wannier functions (WFs) without the need of providing an initial guess. Instead, a suitable starting point is constructed automatically from so-called local orbitals which are fundamental building blocks of the basis set within (linearized) augmented planewave methods. Our approach is applied to a vast variety of materials such as metals, bulk and low-dimensional semiconductors, and complex inorganic-organic hybrid interfaces. For the interpolation of electronic single-particle energies, an accuracy in the meV range can be easily achieved. We exemplify the capabilities of our method by the calculation of the joint density of states in aluminum, (generalized) Kohn-Sham and quasi-particle band structures in various semiconductors, and the electronic structure of $β$-Ga$_2$O$_3$, including electron and hole effective masses.
Inverse problem for the Landau-Zener effect
Creators: name: Garanin, D. A.
name: Schilling, R.
Publisher: name: arXiv
Year: 2002
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We consider the inverse Landau-Zener problem which consists in finding the energy-sweep functions W(t)=E1(t)-E2(t) resulting in the required time dependences of the level populations for a two-level system crossing the resonance one or more times during the sweep. We find sweep functions of particular forms that let manipulate the system in a required way, including complete switching from the state 1 to the state 2 and preparing the system at the exact ground and excited states at resonance.
description: 7 EPL pages, 6 figures
title: Comparing Federal Early Life Wealth Building Policy Proposals
Creators: name: Brown, Madeline
Publisher: name: University of Michigan
Year: 2024
Subjects: subject: Baby Bonds
subject: Racial Wealth Gap
subject: Wealth Inequality
subject: American Opportunity Accounts Act
subject: Assets
subject: Social Work
subject: FOS: Sociology
subject: Social Sciences

description: The goal of the Financial Independence policy conference held on September 16 and 17, 2024 in Washington, D.C. was to bring together experts from the asset and income fields to share theory, evidence, and best practices. The conference was divided into four sessions. The first two sessions were on Children’s Savings Accounts and Baby Bonds, the asset arm of the conference. The third session focused on the income arm. More specifically, it focused on Unconditional Cash Transfers, the Child Tax Credit, and Child Allowances. The final session focused on why solving poverty requires both asset and income proponents to come together. This policy brief is part of the Baby Bonds’ session.
description: This working paper analyzes two pieces of early life wealth-building federal legislation: the American Opportunity Accounts Act (AOAA) and the 401Kids Savings Act (401Kids), calling special attention to the many areas of alignment, the few important distinctions, and the degree to which they reflect agreed upon principles shared by the field.
Additional file 3 of SARS-CoV-2 productively infects human brain microvascular endothelial cells
Creators: name: Yang, Rui-Cheng
name: Huang, Kun
name: Zhang, Hui-Peng
name: Li, Liang
name: Zhang, Yu-Fei
name: Tan, Chen
name: Chen, Huan-Chun
name: Jin, Mei-Lin
name: Wang, Xiang-Ru
Publisher: name: figshare
Year: 2022
Subjects: subject: Biochemistry
subject: Microbiology
subject: FOS: Biological sciences
subject: Cell Biology
subject: Molecular Biology
subject: Physiology
subject: Immunology
subject: FOS: Clinical medicine
subject: Cancer
subject: Mental Health
subject: Infectious Diseases
subject: FOS: Health sciences
subject: Plant Biology
subject: Virology

description: Additional file 3: Table S3. Tight junction proteins related mRNAs.
title: Für Entschädigungszahlungen an die ehemaligen mosambikanischen Vertragsarbeiter:innen. Offener Brief an die Bundesregierung
Creators: name: Enzenbach, Isabel
name: Bartlitz, Christine
Publisher: name: ZZF - Centre for Contemporary History: Visual History
Year: 2021

description: Mehr als 17.000 mosambikanische „Vertragsarbeiter:innen“ kamen zwischen 1979 und 1989 in die DDR. Grundlage war ein Abkommen zwischen der DDR und der Volksrepublik Mosambik „über die zeitweilige Beschäftigung mocambiquanischer Werktätiger in sozialistischen Betrieben“. Der Herbst 1989 bedeutete für viele von ihnen ein jähes Ende ihres Aufenthalts. Seit mehr als drei Jahrzehnten kämpfen die Rückkehrer:innen, Madgermanes genannt, um ihren vorenthaltenen Lohn und gegen ihre Diskriminierung in Mosambik. Daher fordert das Magdeburger Memorandum, verabschiedet 2019 auf einer Tagung zum 40. Jahrestag der Unterzeichnung des Abkommens zwischen der DDR und Mosambik, die Lösung der ethischen, politischen und juristischen Fragen. Diese Forderung blieb bisher unerfüllt. Die Initiative, die Forderungen des Magdeburger Memorandums aus wissenschaftlicher Perspektive mit einem offenen Brief an die Bundesregierung zu unterstützen, entstand bei einer wissenschaftlichen Konferenz des ZZF.
A conformally invariant derivation of average electromagnetic helicity
Creators: name: Fernandez-Corbaton, Ivan
Publisher: name: arXiv
Year: 2019
Subjects: subject: Optics (physics.optics)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: The average helicity of a given electromagnetic field measures the difference between the number of left- and right-handed photons contained in the field. In here, the average helicity is derived using the conformally-invariant inner-product for Maxwell fields. Several equivalent integral expressions in momentum space, in $(\mathbf{r},t)$ space, and in the time-harmonic $(\mathbf{r},ω)$ space are obtained, featuring Riemann-Silberstein-like fields and potentials. The time-harmonic expressions can be directly evaluated using the outputs of common numerical solvers of Maxwell equations. The results are shown to be equivalent to the well-known volume integral for the average helicity, featuring the electric and magnetic fields and potentials.
The universe evolution as a possible mechanism of formation of galaxies and their clusters
Creators: name: Gusev, A.
name: Flin, P.
name: Pervushin, V.
name: Vinitsky, S.
name: Zorin, A.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The Kepler problem is considered in a space with the Friedmann--Lemaitre--Robertson--Walker metrics of the expanding universe. The covariant differential of the Friedmann coordinates (X=a(t)x) is considered as a possible mechanism of the formation of galaxies and clusters of galaxies. The cosmic evolution leads to decreasing energy of particles, causing free particles to be captured in bound states. In this approach the evolution of the universe plays the role usually inscribed to Cold Dark Matter.
description: 6 pages, 3 figures
DeepMUSIC: Multiple Signal Classification via Deep Learning
Creators: name: Elbir, Ahmet M.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Signal Processing (eess.SP)
subject: Machine Learning (cs.LG)
subject: Audio and Speech Processing (eess.AS)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Computer and information sciences

description: This letter introduces a deep learning (DL) framework for direction-of-arrival (DOA) estimation. Previous works in DL context mostly consider a single or two target scenario which is a strong limitation in practice. Hence, in this work, we propose a DL framework for multiple signal classification (DeepMUSIC). We design multiple deep convolutional neural networks (CNNs), each of which is dedicated to a subregion of the angular spectrum. In particular, each CNN is fed with the array covariance matrix and it learns the MUSIC spectra of the corresponding angular subregion. We have shown, through simulations, that the proposed DeepMUSIC framework has superior estimation accuracy and exhibits less computational complexity in comparison with both DL and non-DL based techniques.
description: To appear in IEEE Sensors Letters, 5 pages, 5 figures
Crop Choice, Rotational Effects and Water Quality Consequence in Up-Mississippi River Basin: Connecting SWAT Model with Dynamic Land Use Model
Creators: name: Ji, Yongjie
name: Rabotyagov, Sergey
name: Kling, Catherine L.
name: Ji, Yongjie
name: Rabotyagov, Sergey
name: Kling, Catherine L.
Publisher: name: Unknown
Year: 2014
Subjects: subject: Environmental Economics and Policy
subject: Land Economics/Use
subject: Research Methods/ Statistical Methods
subject: dynamic land use model
subject: SWAT
subject: water quality
subject: climate change

description: In this research, we propose a framework to connect SWAT model with a dynamic discrete choice based land use model. With the recent years of cropland data layers published by NASS, USDA and data complied from other sources, we apply this framework to land use change in Upper-Mississippi River Basin in different scenarios and evaluate water quality consequences associated with induced land use change.
Geodesic laminations revisited
Creators: name: Nikolaev, Igor
Publisher: name: arXiv
Year: 2002
Subjects: subject: Geometric Topology (math.GT)
subject: Operator Algebras (math.OA)
subject: FOS: Mathematics
subject: 46L; 57M

description: The Bratteli diagram is an infinite graph which reflects the structure of projections in a C*-algebra. We prove that every strictly ergodic unimodular Bratteli diagram of rank 2g+m-1 gives rise to a minimal geodesic lamination with the m-component principal region on a surface of genus g greater or equal to 1. The proof is based on the Morse theory of the recurrent geodesics on the hyperbolic surfaces.
description: 13 pages, 2 figures, revised version
Quantum Depletion of an Excited Condensate
Creators: name: Dziarmaga, Jacek
name: Karkuszewski, Zbyszek P.
name: Sacha, Krzysztof
Publisher: name: arXiv
Year: 2001
Subjects: subject: Condensed Matter (cond-mat)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We analyze greying of the dark soliton in a Bose-Einstein condensate in the limit of weak interaction between atoms. The condensate initially prepared in the excited dark soliton state is loosing atoms because of spontaneous quantum depletion. These atoms are depleted from the soliton state into single particle states with nonzero density in the notch of the soliton. As a result the image of the soliton is losing contrast. This quantum depletion mechanism is efficient even at zero temperature when a thermal cloud is absent.
description: 4 pages; version to appear in Phys.Rev.A; change in the title plus a number of small changes in the text
Replica symmetric evaluation of the information transfer in a two-layer network in presence of continuous and discrete stimuli
Creators: name: Del Prete, Valeria
name: Treves, Alessandro
Publisher: name: arXiv
Year: 2002
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: FOS: Physical sciences

description: In a previous report we have evaluated analytically the mutual information between the firing rates of N independent units and a set of continuous+discrete stimuli, for finite N and in the limit of large noise. Here, we extend the analysis to the case of two interconnected populations, where input units are linked to output ones via gaussian weights and a threshold linear transfer function. We evaluate the information carried by M output units about continuous +discrete correlates by means of saddle point equations under the assumption of replica symmetry. Within this limitation, we analyze the dependence of the information on the ratio M/N, on the selectivity of the input units and on the level of the output noise. We show analytically, and confirm numerically, that in the limit of a linear transfer function and of a small ratio between output and input noise, the output information approaches asymptotically the information carried in input. Finally, we show that the information loss in output does not depend much on the structure of the stimulus, but mainly on the position of the threshold nonlinearity, and on the ratio between input and output noise.
description: revised version of cond-mat/0107587, added simulation results and one figure; Phys. Rev. E, in press
Sharp crossover and anomalously large correlation length in driven systems
Creators: name: Kafri, Y.
name: Levine, E.
name: Mukamel, D.
name: Torok, J.
Publisher: name: arXiv
Year: 2002
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: Models of one-dimensional driven diffusive systems sometimes exhibit an abrupt increase of the correlation length to an anomalously large but finite value as the parameters of the model are varied. This behavior may be misinterpreted as a genuine phase transition. A simple mechanism for this sharp increase is presented. The mechanism is introduced within the framework of a recently suggested correspondence between driven diffusive systems and zero-range processes. It is shown that when the dynamics of the model is such that small domains are suppressed in the steady-state distribution, anomalously large correlation length may build up. The mechanism is examined in detail in two models.
Real-Time Predictive Control for Precision Machining
Creators: name: Liniger, Alexander
name: Varano, Luca
name: Rupenyan, Alisa
name: Lygeros, John
Publisher: name: arXiv
Year: 2019
Subjects: subject: Systems and Control (eess.SY)
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: Precise positioning and fast traversal times are crucial in achieving high productivity and scale in machining. This paper compares two optimization-based predictive control approaches that achieve high performance. In the first approach, the contour error is defined using the global position, the position on the path is inferred through a virtual path parameter, and the cost function combines the corresponding states and inputs to achieve a trade-off between high speed and positioning accuracy. The second approach is based on a local definition of both the error and the progress along the path, and results in a system with a reduced number of states and inputs that enables real-time optimization. Terminal and trust region constraints are required to achieve precise tracking of geometries where a fast or instantaneous change in direction is present. The performance of both approaches using different quadratic programming solvers is evaluated in simulations for geometries that are challenging in machine tools applications.
description: 6 pages, 3 figures, Accepted for publication in 58th IEEE Conference on Decision and Control (CDC 2019)
Oribatula (Zygoribatula) frisiae
Creators: name: Murvanidze, Maka
name: Cilbircioğlu, Cihan
name: Özdemir, Esengül
name: Inak, Emre
Publisher: name: Zenodo
Year: 2020
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Sarcoptiformes
Oribatulidae
Oribatula
Oribatula frisiae

description: Oribatula (Zygoribatula) frisiae (Oudemans, 1900)
 Material – Twenty specimens in Güdül, N 40° 2′ 03.34′′, E 32° 15′ 23.28′′, alt. = 729 m, 20 July 2018, soil with litter in vineyard.
 Previous records in Turkey – Ankara (Kumral and Cobanoğlu 2016), Kocaeli (Yaça and Baran 2019).
 Global distribution – Holarctic.
 Ecology – Forest and urban soils.
description: Published as part of Murvanidze, Maka, Cilbircioğlu, Cihan, Özdemir, Esengül & Inak, Emre, 2020, Checklist of oribatid mites (Acari: Oribatida) of the Central Black Sea basin of Turkey with new records for the country, pp. 255-277 in Persian Journal of Acarology 9 (3) on page 265, DOI: 10.22073/pja.v9i3.61909, http://zenodo.org/record/5236444
title: Στατιστικά μοντέλα για την ανάλυση της απόδοσης των ομάδων στο παγκόσμιο κύπελλο ποδοσφαίρου
title: Statistical models for the performance analysis of teams in the FIFA World Cup
titleType: AlternativeTitle
Creators: name: Χονδρορρίζος, Βασίλειος
Publisher: name: Πανεπιστήμιο Πειραιώς
Year: 2024
Subjects: subject: Ποδόσφαιρο
subject: Παγκόσμιο κύπελλο ποδοσφαίρου
subject: Στατιστική ανάλυση
subject: Μηχανική μάθηση
subject: Γενικευμένα γραμμικά μοντέλα

description: Η στατιστική ανάλυση και η επιστήμη των δεδομένων έχουν αναδειχθεί σε καίρια εργαλεία σε πολλούς τομείς της ανθρώπινης δραστηριότητας τα τελευταία χρόνια. Χάρη στην πρόοδο της τεχνολογίας και της υπολογιστικής ισχύος, έχουμε τη δυνατότητα να επεξεργαζόμαστε και να αναλύουμε τεράστιες ποσότητες δεδομένων με ταχύτητα και ακρίβεια. Αυτές οι δυνατότητες έχουν επιτρέψει την ανάπτυξη πιο εξελιγμένων μεθόδων πρόβλεψης και λήψης αποφάσεων, κάτι που βρίσκει εφαρμογή και στον αθλητισμό. Στο ποδόσφαιρο, η χρήση της στατιστικής ανάλυσης και της ανάλυσης δεδομένων έχει φέρει επανάσταση στον τρόπο με τον οποίο οι ομάδες προετοιμάζονται και αγωνίζονται. Από την ανάλυση της απόδοσης των παικτών και των ομάδων έως την πρόβλεψη των αποτελεσμάτων των αγώνων, η αξιοποίηση των δεδομένων έχει γίνει αναπόσπαστο κομμάτι της σύγχρονης προσέγγισης στο άθλημα. Οι προπονητές, οι αναλυτές και οι σκάουτερ χρησιμοποιούν προηγμένα εργαλεία για να εντοπίσουν τις αδυναμίες των αντιπάλων, να βελτιώσουν τις στρατηγικές τους και να μεγιστοποιήσουν την απόδοση των ομάδων τους. Η παρούσα διπλωματική εργασία επικεντρώνεται στην ανάλυση των παραγόντων που επηρεάζουν την επιτυχία των εθνικών ομάδων ποδοσφαίρου στο Παγκόσμιο Κύπελλο από το 2010 και μετά. Μέσω της χρήσης στατιστικών μοντέλων και τεχνικών μηχανικής μάθησης, διερευνώνται τα χαρακτηριστικά που συμβάλλουν στην επιτυχημένη πορεία μιας ομάδας, οι παράγοντες που διαφοροποιούν τους νικητές από τους ηττημένους, καθώς και πιθανές αλλαγές στον τρόπο αντιμετώπισης των αγώνων από τις ομάδες στο πέρας των διοργανώσεων. Τα αποτελέσματα της έρευνας αυτής προσφέρουν πολύτιμες πληροφορίες για τους παράγοντες που επηρεάζουν τους αγώνες αλλά και την πορεία των ομάδων, ενισχύοντας την κατανόηση του παιχνιδιού και την αποτελεσματικότητα σε ένα τόσο ανταγωνιστικό πεδίο όπως είναι το παγκόσμιο κύπελλο ποδοσφαίρου.
MOESM1 of Impact of global warming scenarios on life-history traits of Tetranychus evansi (Acari: Tetranychidae)
Creators: name: Noureldin Ghazy
name: Gotoh, Tetsuo
name: Suzuki, Takeshi
Publisher: name: figshare
Year: 2019
Subjects: subject: Medicine
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Developmental Biology

description: Additional file 1: Figure S1. Relative humidity (%) measurements made during the experiments.
Arithmetic Macaulayfication of projective schemes
Creators: name: Cutkosky, S. D.
name: Ha, Huy Tai
Publisher: name: arXiv
Year: 2002
Subjects: subject: Commutative Algebra (math.AC)
subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics
subject: 14M05

description: In this paper, we study arithmetic Macaulayfication of projective schemes and Rees algebras of ideals. We give a necessary and sufficient condition for a nonsingular projective scheme to have an arithmetic Macaulayfication. If the scheme is not necessarily nonsingular, we show that our condition give a sufficient condition for the existence of an arithmetic Macaulayfication. We also study truncated Rees algebra of an ideal. We show that the truncated Rees algebra R_λ(I) of an ideal I is alway Cohen-Macaulay for λlarge enough in some important situations.
description: 14 pages
Orbital Properties and Gravitational Wave Signatures of Strange Crystal Planets
Creators: name: Zapata, Joás
name: Negreiros, Rodrigo
Publisher: name: arXiv
Year: 2019
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: In this paper we consider the possibility that strange quark matter may be manifested in the form of strangelet crystal planets. These planet-like objects are made up of nuggets of strange quark matter (SQM), organized in a crystalline structure. We consider the so--called strange matter hypothesis proposed by Bodmer, Witten and Terazawa, in that, strange quark matter may be the absolutely stable state of matter. In this context, we analyze planets made up entirely of strangelets arranged in a crystal lattice. Furthermore we propose that a solar system with a host compact star may be orbited by strange crystal planets. Under this assumption we calculate the relevant quantities that could potentially be observable, such as the planetary tidal disruption radius, and the gravitational waves signals that may arise from potential star-planet merger events. Our results show that strangelet crystal planets could potentially be used as an indicator for the the existence of SQM.
description: Accepted for publication in the Astrophysical Journal; 7 pages, 2 figures
Oribatula (Zygoribatula) nicora
Creators: name: Murvanidze, Maka
name: Cilbircioğlu, Cihan
name: Özdemir, Esengül
name: Inak, Emre
Publisher: name: Zenodo
Year: 2020
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Sarcoptiformes
Oribatulidae
Oribatula
Oribatula nicora

description: Oribatula (Zygoribatula) nicora (Djaparidze, 1985)
 Material – Twelve specimens in Karadedeoğlu Village, Taşköprü forest, N 41° 22′ 55.11′′, E 34° 24′ 03.56′′, alt. = 1204 m, 24 July 2018, tree bark and debris of P. nigra; 21 specimens in Yeşiltepe Area, Akçaabat, Trabzon, N 40° 58′ 24.75′′, E 39° 30′ 25.55′′, alt. = 348 m, 22 May 2018, tree bark and debris of P. abies; one specimen in Alasökü Village, Taşköprü, N 41° 19′ 56.66′′, E 34° 24′ 24.72′′, alt. = 1468 m, 16 June 2018, tree bark and debris of P. sylvestris; three specimens in Çamkonak Forest Processing Area, Daday forest, N 41° 23′ 3.74′′, E 33° 14′ 02.03′′, alt. = 1382 m, 19 October 2018, tree bark and debris of P. nigra.
 Previous records in Turkey – Halaçli, Taşköprü Kabalar, Merkez Uzunkavak, Taşköprü Kızılcaören, Taşköprü Ağcıkişi, Merkez Çavundur, Hanönü Kornapa, Taşköprü Ağcıkişi villages in Kastamonu region (Murvanidze et al. 2018).
 Global distribution – Caucasus.
 Ecology – All types of habitats.
description: Published as part of Murvanidze, Maka, Cilbircioğlu, Cihan, Özdemir, Esengül & Inak, Emre, 2020, Checklist of oribatid mites (Acari: Oribatida) of the Central Black Sea basin of Turkey with new records for the country, pp. 255-277 in Persian Journal of Acarology 9 (3) on page 265, DOI: 10.22073/pja.v9i3.61909, http://zenodo.org/record/5236444
MOESM3 of IgA vasculitis (Henoch – Schönlein Purpura) as the first manifestation of juvenile Systemic Lupus Erythematosus: Case-control study and systematic review
Creators: name: Murata, Chiharu
name: Rodríguez-Lozano, Ana
name: Hayde Hernández-Huirache
name: Martínez-Pérez, Miriam
name: Rincón-Arenas, Laura
name: Jiménez-Polvo, Esmeralda
name: Rivas-Larrauri, Francisco
name: Solís-Galicia, Cecilia
Publisher: name: figshare
Year: 2019
Subjects: subject: Ecology
subject: FOS: Biological sciences
subject: Immunology
subject: FOS: Clinical medicine
subject: 69999 Biological Sciences not elsewhere classified
subject: 80699 Information Systems not elsewhere classified
subject: FOS: Computer and information sciences
subject: Developmental Biology
subject: Science Policy

description: Additional file 3. PRISMA checklist.
Program Manager’s Guidebook for Software Assurance
Creators: name: Woody, Carol
name: Chick, Timothy
name: Nidiffer, Kenneth
Publisher: name: Carnegie Mellon University
Year: 2020
Subjects: subject: 80303 Computer System Security
subject: FOS: Computer and information sciences
subject: Computer Software

description: The Program Manager’s Guidebook for Software Assurance supports project managers who must integrate software assurance engineering activities into the acquisition lifecycle. The goal of the guidebook is to help the program manager (PM) understand and address the software assurance responsibilities critical in defending software-intensive systems. It presents actions a PM must take to ensure that software assurance is effectively addressed. These actions require an under-standing of program mission threads, threat awareness, and the roles and responsibilities of members of the program office team. The guidebook objectives are aligned with (1) Enclosure 14 of Department of Defense (DoD) Instruction 5000.02, which provides policies and principles for cybersecurity in defense acquisition systems; (2) the Defense Acquisition University’s Software Assurance Course (CLE 081); (3) the DoD Integrated Defense Acquisition, Technology, and Logistics Lifecycle; and (4) the Deputy Assistant Secretary of Defense (Systems Engineering) Software Assurance Concept of Operations.
The Effect of Spatial Interpolation on the Hedonic Model: a Case of Forest Pest Damages
Creators: name: Li, Xiaoshu
name: Boyle, Kevin J.
name: Preisser, Evan
name: Holmes, Thomas
name: Moeltner, Klaus
name: Orwig, David
name: Li, Xiaoshu
name: Boyle, Kevin J.
name: Preisser, Evan
name: Holmes, Thomas
name: Moeltner, Klaus
name: Orwig, David
Publisher: name: Unknown
Year: 2014
Subjects: subject: Environmental Economics and Policy
subject: Research Methods/ Statistical Methods
subject: hemlock woolly adelgid
subject: forest damage
subject: spatial interpolation
subject: hedonic model

description: In the hedonic model, when an investigator wishes to merge property sale data with spatial data on an environmental amenity, one problem encountered in the matching process is that the environmental data are usually limited. A challenging task is how to scale site and time specific environmental data to all property sales within a defined geographical area. Inverse distance weighting, Kriging and splines are three commonly used geo-statistical methodologies to make spatial interpolation. In this study, we investigate the effect of these spatial interpolation methods on the estimation of a hedonic model in the context of an invasive forest pest, the hemlock wooly adelgid. Our results indicate a statistically significant relationship between hemlock health and residential property values at the 0.1 km level. Comparing through different interpolation methodologies, Kriging provides the most reliable interpolation results which provides us a useful tool to scale up our analysis from specific sample sites to broad geographical area.
Oribatula (Zygoribatula) propinqua
Creators: name: Murvanidze, Maka
name: Cilbircioğlu, Cihan
name: Özdemir, Esengül
name: Inak, Emre
Publisher: name: Zenodo
Year: 2020
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Sarcoptiformes
Oribatulidae
Oribatula
Oribatula propinqua

description: Oribatula (Zygoribatula) propinqua (Oudemans, 1900) *
 Material – New record for Turkey. One specimen in Şahinler Natural Park, Ankara.Woody plants are represented by Pinus nigra, P. sylvestris L., Quercus sp., Fagus sp., N 40° 61′ 74.65′′, E 32° 45′ 55.46′′, alt. = 1660 m, 16 June 2018, soil with moss.
 Global distribution – Palaearctic.
 Ecology – On the trees, rare in dry soils.
description: Published as part of Murvanidze, Maka, Cilbircioğlu, Cihan, Özdemir, Esengül & Inak, Emre, 2020, Checklist of oribatid mites (Acari: Oribatida) of the Central Black Sea basin of Turkey with new records for the country, pp. 255-277 in Persian Journal of Acarology 9 (3) on page 265, DOI: 10.22073/pja.v9i3.61909, http://zenodo.org/record/5236444
Additional file 10 of Loss of RPS27a expression regulates the cell cycle, apoptosis, and proliferation via the RPL11-MDM2-p53 pathway in lung adenocarcinoma cells
Creators: name: Li, Hongyan
name: Zhang, Hong
name: Huang, Guomin
name: Bing, Zhitong
name: Xu, Duling
name: Liu, Jiadi
name: Luo, Hongtao
name: An, Xiaoli
Publisher: name: figshare
Year: 2022
Subjects: subject: Biophysics
subject: Biochemistry
subject: Microbiology
subject: FOS: Biological sciences
subject: Cell Biology
subject: Genetics
subject: Molecular Biology
subject: Pharmacology
subject: Biological Sciences not elsewhere classified
subject: Developmental Biology
subject: Cancer
subject: Virology

description: Additional file 10: Supplementary file 1. Plasmid information for RPL11 and RPS27a.
Technology adoption and the multiple dimensions of food security: the case of maize in Tanzania
Creators: name: Magrini, Emiliano
name: Vigani, Mauro
name: Magrini, Emiliano
name: Vigani, Mauro
Publisher: name: Unknown
Year: 2014
Subjects: subject: Agricultural and Food Policy
subject: Food Security and Poverty
subject: Research and Development/Tech Change/Emerging Technologies
subject: Resource /Energy Economics and Policy
subject: Food Security
subject: Technology Adoption
subject: Propensity Score Matching
subject: Tanzania

description: The paper analyses the impact of adopting new agricultural technologies on the multiple dimensions of food security for maize farmers in Tanzania. Relying on matching techniques, we use a nationally representative dataset collected over the period 2010/2011 to estimate the causal elects of using improved seeds and inorganic fertilizers on four dimensions: availability, access, utilization, and stability. We find an overall positive and significant impact on all the dimensions of food security even if substantial differences are observed. In particular, improved seeds show a stronger effect on food availability and access while inorganic fertilizers guarantee higher stability. In terms of utilization, both technologies increase the diet diversity while only improved seeds reduce the dependence on staple food. The study supports the idea that the relationship between new agricultural technologies and food security is a complex phenomenon which requires a deeper and more thorough investigation.
On-surface synthesis of antiaromatic and open-shell indeno[2,1-b]fluorene polymers and their lateral fusion into porous ribbons
Creators: name: Di Giovannantonio, Marco
name: Eimre, Kristjan
name: Yakutovich, Aliaksandr V.
name: Chen, Qiang
name: Mishra, Shantanu
name: Urgel, José I.
name: Pignedoli, Carlo A.
name: Ruffieux, Pascal
name: Müllen, Klaus
name: Narita, Akimitsu
name: Fasel, Roman
Publisher: name: arXiv
Year: 2019
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Polycyclic hydrocarbons have received great attention due to their potential role in organic electronics and, for open-shell systems with unpaired electron densities, in spintronics and da-ta storage. However, the intrinsic instability of polyradical hydrocarbons severely limits de-tailed investigations of their electronic structure. Here, we report the on-surface synthesis of conjugated polymers consisting of indeno[2,1-b]fluorene units, which are antiaromatic and open-shell biradicaloids. The observed reaction products, which also include a non-benzenoid porous ribbon arising from lateral fusion of unprotected indeno[2,1-b]fluorene chains, have been characterized via low temperature scanning tunneling microscopy/spectroscopy and non-contact atomic force microscopy, complemented by density-functional theory calculations. These polymers present a low band gap when adsorbed on Au(111). Moreover, their pro-nounced antiaromaticity and radical character, elucidated by ab initio calculations, make them promising candidates for applications in electronics and spintronics. Further, they provide a rich playground to explore magnetism in low-dimensional organic nanomaterials.
A possible cooling effect in high temperature superconductors
Creators: name: Svidzinsky, Anatoly
Publisher: name: arXiv
Year: 2001
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We show that an adiabatic increase of the supercurrent along a superconductor with lines of nodes of the order parameter on the Fermi surface can result in a cooling effect. The maximum cooling occurs if the supercurrent increases up to its critical value. The effect can also be observed in a mixed state of a bulk sample. An estimate of the energy dissipation shows that substantial cooling can be performed during a reasonable time even in the microkelvin regime.
description: 5 pages, to appear in Phys. Rev. B