cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Two-band description of resonant superfluidity in atomic Fermi gases
Creators: name: He, Lianyi
name: Hu, Hui
name: Liu, Xia-Ji
Publisher: name: arXiv
Year: 2014
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: Superconductivity (cond-mat.supr-con)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: Fermionic superfluidity in atomic Fermi gases across a Feshbach resonance is normally described by the atom-molecule theory, which treats the closed channel as a noninteracting point boson. In this work we present a theoretical description of the resonant superfluidity in analogy to the two-band superconductors. We employ the underlying two-channel scattering model of Feshbach resonance where the closed channel is treated as a composite boson with binding energy $\varepsilon_0$ and the resonance is triggered by the microscopic interchannel coupling $U_{12}$. The binding energy $\varepsilon_0$ naturally serves as an energy scale of the system, which has been sent to infinity in the atom-molecule theory. We show that the atom-molecule theory can be viewed as a leading-order low-energy effective theory of the underlying fermionic theory in the limit $\varepsilon_0\rightarrow\infty$ and $U_{12}\rightarrow0$, while keeping the phenomenological atom-molecule coupling finite. The resulting two-band description of the superfluid state is in analogy to the BCS theory of two-band superconductors. In the dilute limit $\varepsilon_0\rightarrow\infty$, the two-band description recovers precisely the atom-molecule theory. The two-band theory provides a natural approach to study the corrections because of a finite binding energy $\varepsilon_0$ in realistic experimental systems. For broad and moderate resonances, the correction is not important for current experimental densities. However, for extremely narrow resonance, we find that the correction becomes significant. The finite binding energy correction could be important for the stability of homogeneous polarized superfluid against phase separation in imbalanced Fermi gases across a narrow Feshbach resonance.
description: Published version
Was gibt es Neues? - Das Mittelalter!
Creators: name: Boulnois, Olivier
Publisher: name: Internationale katholische Zeitschrift Communio
Year: 2022

description: Internationale katholische Zeitschrift Communio, Bd. 32 Nr. 4 (2003): Internationale katholische Zeitschrift Communio, Band 32, Heft 4
Z doświadczeń pracy nad konkordancjami do Vade-mecum Cypriana Norwida
Creators: name: Szafran, Krzysztof
name: Miłkowska, Mirosława
name: Zakrzewska, Ewa
Publisher: name: Zenodo
Year: 1987
Subjects: Cyprian Norwid
Vade-mecum
concordances

description: The description of work on concordances to Cyprian Norwid's Vade-mecum
title: Desing and implementing network security primitives for core 5G infrastracture
title: Σχεδίαση και υλοποίηση πρωτότυπων ασφάλειας στον πυρήνα των δικτύων 5ης γενιάς
Creators: name: Λυρωνης Σταυρος
Publisher: name: Technical University of Crete
Year: 2022

description: We live in an era where modern networking has become a constant battlefield be-
tween hackers and cyber-security operators. Malicious users launch attacks in any
internet facing system that shows vulnerabilities. Due to the growth of the rate
of these attacks, the former naive stationary approaches on computer security are
being abandoned and the need for a new mobile way to defend is required. By tak-
ing advantage of Active Networks, the PRINCIPALS project introduces a novel
architecture for safe programmability and adaptability in 5G networks. In this
thesis we develop five network security primitives for core 5G infrastructure and
some language security techniques that will be used in the PRINCIPALS project.
These network security primitives will be addressing current and anticipated se-
curity problems in 5G networks, through custom-yet-adaptive logic expressed as
code. This code, tested and evaluated, will be containerised and deployed inside
the Active Management Environment (AME) that PRINCIPALS provides. The
application of language security techniques that are also implemented in this the-
sis will set an upper-bound limit on what actions the code-carrying packets used
in PRINCIPALS can take. In this way the flexibility and adaptability will be
secured, while maintaining security in the 5G Network.
description: Ζούμε σε μια εποχή όπου η σύγχρονη δικτύωση έχει γίνει ένα συνεχές πεδίο μάχης μεταξύ των χάκερ και των χειριστών κυβερνοασφάλειας. Οι κακόβουλοι χρήστες εξαπολύουν επιθέσεις σε οποιοδήποτε σύστημα που χρησιμοποιεί το Διαδίκτυο το οποίο εμφανίζει τρωτά σημεία.
Λόγω της αύξησης του ρυθμού των επιθέσεων αυτών, οι πρώην αφελείς σταθερές προσεγγίσεις για την ασφάλεια των υπολογιστών εγκαταλείπονται και απαιτείται η ανάγκη για έναν νέο \textit{κινητό} τρόπο άμυνας.
Αξιοποιώντας τα Active Networks, το έργο PRINCIPALS εισάγει μια νέα αρχιτεκτονική για ασφαλή προγραμματισμό και προσαρμοστικότητα στα δίκτυα 5G.
Σε αυτή τη διατριβή παρουσιάζουμε και αναπτύσσουμε το σχεδιασμό και την εφαρμογή πρωτόγονων αρχών ασφάλειας δικτύου για βασική υποδομή 5G και ορισμένες προκαταρκτικές τεχνικές ασφάλειας γλώσσας, που θα χρησιμοποιηθούν στο έργο PRINCIPALS.
Galilean invariance at quantum Hall edge
Creators: name: Moroz, Sergej
name: Hoyos, Carlos
name: Radzihovsky, Leo
Publisher: name: arXiv
Year: 2015
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We construct the theory of a chiral Luttinger liquid that lives on the boundary of a Galilean invariant quantum Hall fluid. In contrast to previous studies, Galilean invariance of the total (bulk plus edge) theory is guaranteed. We consider electromagnetic response at the edge and calculate momentum- and frequency-dependent electric conductivity and argue that its experimental measurement can provide a new means to determine the shift and bulk Hall viscosity.
description: 9 pages, 3 figures, typos corrected, published version
Magnetic structure in Dy/Sc superlattices
Creators: name: Beach, R.S.
name: Flynn, C.P.
name: Erwin, R.W.
name: Tsui, F.
name: Borchers, J.A.
name: Rhyne, J.J.
Publisher: name: American Institute of Physics Inc.
Year: 1993

description: We have investigated magnetic order in superlattices of Dy and Sc grown along the hcp c axis by molecular beam epitaxy (MBE) techniques. Our neutron diffraction experiments reveal that individual Dy layers order ferromagnetically below Tc∼150 K. The magnetic coherence length along the growth direction is less than the Dy-layer thickness. Previous studies of rare-earth superlattices with Y or Lu as spacer layers have shown that magnetic coherence propagates through sufficiently thin nonmagnetic interlayers. This arises from the long-range exchange interaction that originates from nesting features in the Fermi surface of the spacer material. The lack of coupling in Dy/Sc superlattices reflects the very different Fermi surface of Sc, with much weaker nesting than Y and Lu.
Supplementary material for Pfizer Oncology’s Other or Multiple Cancer Types Pipeline – September 2024
Creators: name: Becker, Mauricio
name: Garas, Sam
Publisher: name: Pfizer
Year: 2024
Subjects: classificationCode: 329999
subject: Other biomedical and clinical sciences not elsewhere classified

description: Congress materials may include information for investigational products or for which the product is not approved and/or inconsistent with the product uses described in the Prescribing Information. Regulatory approval of investigational products or uses is dependent on the completion of the study programs and review by regulatory authorities. Pfizer does not suggest or recommend the use of Pfizer Products in any manner other than as described in the Prescribing Information. The clinical trial information is available at www.clinicaltrials.gov. This information is current as of August 1, 2024.
Stability of the Master Oscillator for FLASH at DESY.
Creators: name: Lorbeer, Bastian
name: DESY
Publisher: name: Deutsches Elektronen-Synchrotron, DESY, Hamburg
Year: 2006
Subjects: thesis
DESY FLASH
microwaves: oscillator
noise: measurement methods
electronics: design
frequency: spectrum

description: TESLA Report 1-57 (2006).
description: In this document a microwave master oscillator (M.O.) and a reference frequency distribution system for the Free Electron Laser (FEL) DESY FLASH is presented. The M.O. generates fixed frequencies ranging from 50 Hz up to 2.856 GHz that must have a defined phase relation. The long term stability (hours) is in the range of a few ps. On short time scales ( < 1 sec) the measured timing jitter for generated frequencies higher than 9 MHz is smaller than 100 fs. The focus is on the design of single modules of the M.O.. The established precision measurements techniques used to verify the performance are presented. The measurement results are discussed in the end.
description: Published by DESY, Hamburg
Brillouin-light-scattering study of long-wavelength spin waves in a single-crystal 300- gadolinium film
Creators: name: Tsui, F.
name: Kong, S.H.
name: Klein, M.V.
name: Flynn, C.P.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 1992

description: The temperature dependence of the energy of ferromagnetic spin waves in an epitaxially grown 300- [0001] Gd film is shown to depend on the bulk values of the c-axis magnetic-stiffness constant Dc, defined by (q)=tsumiDiqi2, where qa1, and the axial-anisotropy constant P2, defined by scrHaniso =P2 (Sz)2+.... Two bulk spin waves and one Damon-Eshbach surface magnetostatic wave were probed with Brillouin light scattering. The bulk spin waves were found to be sensitive to the exchange interaction. In contrast, the Damon-Eshbach surface magnetostatic wave, although insensitive to the exchange interaction, is influenced noticeably by the axial magnetic anisotropy P2(T) present in Gd. Ignoring surface anisotropy, we extracted values of Dc(T) and P2(T) from the Brillouin data and from the magnetization of the Gd film determined by a superconducting-quantum-interference-device magnetometer. Within the experimental errors, these values are reasonably consistent with the bulk values from the literature.
An Alternative to Maxwell's Displacement Current
Creators: name: Wolsky, Alan M.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Classical Physics (physics.class-ph)
subject: FOS: Physical sciences

description: Though sufficient for local conservation of charge, we show that Maxwells displacement current is not necessary. An alternative to the Ampere Maxwell equation is exhibited and the alternative s electric and magnetic fields and scalar and vector potentials are expressed in terms of the charge and current densities. The alternative describes a theory in which action is instantaneous and so may provide a good approximation to Maxwells equations where and when the finite speed of light can be neglected. The result is reminiscent of the Darwin approximation which arose from the study classical charged point particles to order (v/c)2 in the Lagrangian. Unlike Darwin, this approach does not depend on the constitution of the electric current. Instead, this approach grows from a straightforward revision of the Ampere Equation which revision enforces the local conservation of charge.
description: in section 3, cited three more references,in section 5 added one paragraph and cited ten more references
Gibt es eine Verantwortung für "die Geschichte"?
Creators: name: Lobkowicz, Nikolaus
Publisher: name: Internationale katholische Zeitschrift Communio
Year: 2022

description: Internationale katholische Zeitschrift Communio, Bd. 32 Nr. 4 (2003): Internationale katholische Zeitschrift Communio, Band 32, Heft 4
Anisotropic spin motive force in multi-layered Dirac fermion system, $α$-(BEDT-TTF)$_2$I$_3$
Creators: name: Kubo, K.
name: Morinari, T.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We investigate the anisotropic spin motive force in $α$-(BEDT-TTF)$_2$I$_3$, which is a multi-layered massless Dirac fermion system under pressure. Assuming the interlayer antiferromagnetic interaction and the interlayer anisotropic ferromagnetic interaction, we numerically examine the spin ordered state of the ground state using the steepest descent method. The anisotropic interaction leads to the anisotropic spin ordered state. We calculate the spin motive force produced by the anisotropic spin texture. The result quantitatively agrees with the experiment.
description: 6 pages, 6 figures, Proceedings of the International Workshop on Dirac Electrons in Solids 2015
Anisotropic magnetic behavior in Dy/Y films and superlattices
Creators: name: Tsui, F.
name: Borchers, J.A.
name: Rhyne, J.J.
name: Salamon, M.B.
name: Erwin, R.W.
name: Flynn, C.P.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 1991

description: By neutron diffraction we show that superlattices of Dy and Y grown by molecular-beam epitaxy along the hcp b axis exhibit little magnetic coupling between successive Dy layers, even for Y spacers as thin as 9 atomic planes (26). Previous studies of Dy/Y superlattices grown along the hcp c axis established that long-range three-dimensional helimagnetic ordering takes place even through Y spacer layers as thick as 120. This highly anisotropic coupling behavior is shown to have its origin in nearly-two-dimensional nesting features of the Y and Dy Fermi surfaces. Nesting along the c axis gives rise to sharp peaks along c in the wave-vector-dependent magnetic susceptibility, and causes the exchange coupling to exhibit long-range oscillations in real space. The lack of nesting features along the b axis leaves a rapid exponential decay of the exchange interaction with spin separation. From magnetic measurements by superconducting-quantum-interference-device magnetometry on b-axis superlattices and films, we deduce that the first-order ferromagnetic transition of Dy is suppressed, and that the critical field required to produce the ferromagnetic alignment is much higher than the c-axis counterpart. This difference arises from anisotropy of the energy balance of the system. The magnetic coherence in b-axis superlattices and films is anisotropic and exhibits an unusual temperature dependence.
The properties of XO-5b and WASP-82b redetermined using new high-precision transit photometry and global data analyses
Creators: name: Smith, A. M. S.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: This paper presents new transit photometry from the Isaac Newton Telescope of two transiting exoplanetary systems, XO-5 and WASP-82. In each case the new transit light curve is more precise than any other of that system previously published. The new data are analysed alongside previously-published photometry and radial velocities, resulting in an improved orbital ephemeris and a refined set of system parameters in each case. The observational baseline of XO-5 is extended by very nearly four years, resulting in a determination of the orbital period of XO-5b to a precision of just 50 ms. The mass and radius of XO-5b are 1.19$\pm$0.03 and 1.14$\pm$0.03 times those of Jupiter, respectively. The light curve of WASP-82 is only the second published for this system. The planetary mass is 1.25$\pm$0.05 $M_{\rm Jup}$, and the radius is 1.71$\pm$0.08 $M_{\rm Jup}$.
description: 10 pages, 1 figure, 4 tables. Accepted for publication in Acta Astronomica
New configurations of rare-earth superlattices
Creators: name: Flynn, C.P.
name: Tsui, F.
name: Du, R.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 1988

description: We have successfully grown high-quality Dy/Y rare-earth superlattices with their a or b axes perpendicular to the growth plane, at choice. Earlier efforts by molecular-beam-epitaxy methods produced only growth along the c axis. In other research, we have grown almost freestanding superlattices of Dy/Y and other hexagonal rare-earth superlattices. These new configurations make a variety of significant new experiments accessible.
title: Η επίδραση των  φορολογικών  επιβαρύνσεων  στην  οικονομική  μεγέθυνση  των  χωρών
title: The  effects  of  tax  burdens  on  the  economic  growth  of  states
Creators: name: Σταματοπουλος Ηλιας
Publisher: name: Technical University of Crete
Year: 2022

description: Σκοπός  της  εργασίας   είναι  η μέτρηση  της   επίδρασης  που  ασκούν  οι  φορολογικές  επιβαρύνσεις, συμπεριλαμβανομένης  και  της  κοινωνικής  ασφάλισης  (αυξανόμενες  η  μειούμενες)  στην  αύξηση  του  ΑΕΠ  μιας  χώρας,  καθώς  επίσης  και  στην  πιστοληπτική  τους  διαβάθμιση  από  τις  Αγορές.
description: The  purpose  of  this  study  is  to  measure  the  effect  of  tax  burdens,  including  social  security (increasing  or  decreasing)  on  the  growth  of  a  country’s  GDP,  as  well  as  on  their  credit  rating  from  the  Markets.
Vom "gerechten Krieg" zum "gerechten Frieden"
Creators: name: Hoppe, Thomas
Publisher: name: Internationale katholische Zeitschrift Communio
Year: 2022

description: Internationale katholische Zeitschrift Communio, Bd. 32 Nr. 3 (2003): Internationale katholische Zeitschrift Communio, Band 32, Heft 3
Two-electron n-p double quantum dots in carbon nanotubes
Creators: name: Osika, E. N.
name: Szafran, B.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We consider electron states in n-p double quantum dots defined in a semiconducting carbon nanotube (CNT) by an external potential. We describe formation of extended single-electron orbitals originating from the conduction and valence bands confined in a minimum and a maximum of the external potential, respectively. We solve the problem of a confined electron pair using an exact diagonalization method within the tight-binding approach, which allows for a straightforward treatment of the conduction and valence band states, keeping an exact account for the intervalley scattering mediated by the atomic defects and the electron-electron interaction. The exchange interaction - which in the unipolar double dots is nearly independent of the axial magnetic field (B) and forms singlet-like and triplet-like states - in the n-p system appears only for selected states and narrow intervals of B. In particular the ground-state energy level of a n-p double dot is not split by the exchange interaction and remains four-fold degenerate at zero magnetic field also for a strong tunnel coupling between the dots.
Wahrheit, Toleranz, Weltethos
Creators: name: Gerl-Falkovitz, Hanna-Barbara
Publisher: name: Internationale katholische Zeitschrift Communio
Year: 2022

description: Internationale katholische Zeitschrift Communio, Bd. 32 Nr. 3 (2003): Internationale katholische Zeitschrift Communio, Band 32, Heft 3
Robust quantum logic in neutral atoms via adiabatic Rydberg dressing
Creators: name: Keating, Tyler
name: Cook, Robert L.
name: Hankin, Aaron
name: Jau, Yuan-Yu
name: Biedermann, Grant W.
name: Deutsch, Ivan H.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We study a scheme for implementing a controlled-Z (CZ) gate between two neutral-atom qubits based on the Rydberg blockade mechanism in a manner that is robust to errors caused by atomic motion. By employing adiabatic dressing of the ground electronic state, we can protect the gate from decoherence due to random phase errors that typically arise because of atomic thermal motion. In addition, the adiabatic protocol allows for a Doppler-free configuration that involves counterpropagating lasers in a $σ_+/σ_-$ orthogonal polarization geometry that further reduces motional errors due to Doppler shifts. The residual motional error is dominated by dipole-dipole forces acting on doubly-excited Rydberg atoms when the blockade is imperfect. For reasonable parameters, with qubits encoded into the clock states of $^{133}$Cs, we predict that our protocol could produce a CZ gate in $<10$ $μ$s with error probability on the order of $10^{-3}$.
description: 9 pages, 5 figures
On spherical dust fluctuations: the exact vs. the perturbative approach
Creators: name: Sussman, Roberto A.
name: Hidalgo, Juan Carlos
name: Dunsby, Peter K. S.
name: German, Gabriel
Publisher: name: arXiv
Year: 2014
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We examine the relation between the dynamics of Lema\^ıtre-Tolman-Bondi (LTB) dust models (with and without $Λ$) and the dynamics of dust perturbations in two of the more familiar formalisms used in cosmology: the metric based Cosmological Perturbation Theory (CPT) and the Covariant Gauge Invariant (GIC) perturbations. For this purpose we recast the evolution of LTB models in terms of a covariant and gauge invariant formalism of local and non-local "exact fluctuations " on a Friedmann-Lema\^ıtre-Robertson-Walker (FLRW) background defined by suitable averages of covariant scalars. We examine the properties of these fluctuations, which can be defined for a confined comoving domain or for an asymptotic domain extending to whole time slices. In particular, the non-local density fluctuation provides a covariant and precise definition for the notion of the "density contrast ". We show that in their linear regime these LTB exact fluctuations (local and non-local) are fully equivalent to the conventional cosmological perturbations in the synchronous-comoving gauge of CPT and to GIC perturbations. As an immediate consequence, we show the time-invariance of the spatial curvature perturbation in a simple form. The present work may provide important theoretical connections between the exact and perturbative (linear or no-linear) approach to the dynamics of dust sources in General Relativity.
description: V2: References added and typos corrected. Version accepted for publication in PRD
Measuring $CP$ violation and mixing in charm with inclusive self-conjugate multibody decay modes
Creators: name: Malde, S.
name: Thomas, C.
name: Wilkinson, G.
Publisher: name: arXiv
Year: 2015
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: Time-dependent studies of inclusive charm decays to multibody self-conjugate final states can be used to determine the indirect $CP$-violating observable $A_Γ$ and the mixing observable $y_{CP}$, provided that the fractional $CP$-even content of the final state, $F_+$, is known. This approach can yield significantly improved sensitivity compared with the conventional method that relies on decays to $CP$ eigenstates. In particular, $D \to π^+π^-π^0$ appears to be an especially powerful channel, given its relatively large branching fraction and the high value of $F_+$ that has recently been measured at charm threshold.
description: Including minor modifications after journal acceptance
Post-firewall paradoxes
Creators: name: Braunstein, Samuel L.
name: Pirandola, Stefano
Publisher: name: arXiv
Year: 2014
Subjects: subject: Quantum Physics (quant-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The preeminent view that evaporating black holes should simply be smaller black holes has been challenged by the firewall paradox. In particular, this paradox suggests that something different occurs once a black hole has evaporated to one-half its original surface area. Here we derive variations of the firewall paradox by tracking the thermodynamic entropy within a black hole across its entire lifetime. Our approach sweeps away many unnecessary assumptions, allowing us to demonstrate a paradox exists even after its initial onset (when conventional assumptions render earlier analyses invalid). Our results suggest that not only is the formation of a firewall the most natural resolution, but provides a mechanism for it. Finally, although firewalls cannot have evolved for modest-sized black holes, within the age of the universe, we speculate on the implications if they were ever unambiguously observed.
description: 10 pages (incl. Appendices), 6 figures. Extensive rewrite with new results and simplifications
Quantum Phase-Slip Junction Under Microwave Irradiation
Creators: name: Di Marco, Angelo
name: Hekking, Frank W. J.
name: Rastelli, Gianluca
Publisher: name: arXiv
Year: 2015
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We consider the dynamics of a quantum phase-slip junction (QPSJ) -- a dual Josephson junction -- connected to a microwave source with frequency $ω_\textrm{mw}$. With respect to an ordinary Josephson junction, a QPSJ can sustain dual Shapiro steps, consisting of well-defined current plateaus at multiple integers of $ e ω_\textrm{mw} / π$ in the current-voltage (I-V) characteristic. The experimental observation of these plateaus has been elusive up to now. We argue that thermal as well as quantum fluctuations can smear the I-V characteristic considerably. In order to understand these effects, we study a current-biased QPSJ under microwave irradiation and connected to an inductive and resistive environment. We find that the effect of these fluctuations are governed by the resistance of the environment and by the ratio of the phase-slip energy and the inductive energy. Our results are of interest for experiments aimed at the observation of dual Shapiro steps in QPSJ devices for the definition of a new quantum current standard.
description: 12 pages, 9 figures, comments and suggestions would be greatly appreciated
title: Volumetric Data Classification: A Study Direct at 3-D Imagery
Creators: name: Udomchaiporn, A
Publisher: name: University of Liverpool Repository
Year: 2016

description: This thesis describes research work undertaken in the field of image mining (particularly medical image mining). More specifically, the research work is directed at 3-D image classification according to the nature of a particular Volume Of Interest (VOI) that appears across a given image set. In this thesis the term VOI Based Image Classification (VOIBIC) has been coined to describe this process. VOIBIC entails a number of challenges. The first is the identification and isolation of the VOIs. Two segmentation algorithms are thus proposed to extract a given VOI from an image set: (i) Volume Growing and (ii) Bounding Box. The second challenge that VOIBIC poses is, once the VOI have been identified, how best to represent the VOI so that classification can be effectively and efficiently conducted. Three approaches are considered. The first is founded on the idea of using statistical metrics, the Statistical Metrics based representation. This representation offers the advantage in that it is straightforward and, although not especially novel, provides a benchmark. The second proposed representation is founded on the concept of point series (curves) describing the perimeter of a VOI, the Point Series representation. Two variations of this representation are considered: (i) Spoke based and (ii) Disc based. The third proposed representation is founded on a Frequent Subgraph Mining (FSM) technique whereby the VOI is represented using an Oct-tree structure to which FSM can be applied. The identified frequent subtrees can then be used to define a feature vector representation compatible with many classifier model generation methods. The thesis also considers augmenting the VOI data with meta data, namely age and gender, and determining the effect this has on performance. The presented evaluation used two 3-D MRI brain scan data sets: (i) Epilepsy and (ii) Musicians. The VOI in this case were the lateral ventricles, a distinctive VOI in such MRI brain scan data. For evaluation purposes two scenarios are considered, distinguishing between: (i) epilepsy patients and healthy people and (ii) musicians and non-musicians. The results indicates that the Spoke based point series representation technique produced the best results with a recorded classification accuracy of up to 78.52% for the Epilepsy dataset and 84.91% for the Musician dataset.
Digital integration to enhance market efficiency and inclusion of smallholder farmers: a proposed model for fresh fruit and vegetable supply chain
Creators: name: Nedumaran, Swamikannu
name: Selvaraj, Aravazhi
name: Nandi, Ravi
name: Suchiradipta, Bhattacharjee
name: Jyosthnaa, Padmanabhan
name: Bose, Disha
name: Nedumaran, Swamikannu
name: Selvaraj, Aravazhi
name: Nandi, Ravi
name: Suchiradipta, Bhattacharjee
name: Jyosthnaa, Padmanabhan
name: Bose, Disha
Publisher: name: Unknown
Year: 2020
Subjects: subject: Farm Management
subject: Marketing
subject: FOS: Economics and business
subject: Supply chain
subject: fresh fruits and vegetables
subject: primary processing centers
subject: market information system
subject: India

description: High-value agriculture in India is witnessing a transformation, specifically in fresh fruits and vegetables (FFV). Supply chain stakeholders, mainly small and marginal farmers, receive a very minimal share in consumer rupee due to market uncertainty, high post-harvest losses, information asymmetry, lack of processing facilities and the erratic demand-supply situation. The current study draws from an extensive review to propose a competitive, inclusive, sustainable and scalable supply chain model of primary processing centers connecting farmers directly and efficiently with consumers. The proposed model will connect producers with the rest of the supply chain and streamline the supply chain process to reduce post-harvest losses as much as possible. The integration of a market information system will ensure transparency to help in better decision-making, reduced intermediaries and information asymmetry for producers, as well as the systematic disposal of the produce. The model will increase the efficiency of the FFV supply chain and has practical implications for agribusiness management and policymakers in relation to FFV supply chain development in India.
Parameter estimation of qubit states with unknown phase parameter
Creators: name: Suzuki, Jun
Publisher: name: arXiv
Year: 2014
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We discuss a problem of parameter estimation for quantum two-level system, qubit system, in presence of unknown phase parameter. We analyze trade-off relations for mean-square errors when estimating relevant parameters with separable measurements based on known precision bounds; the symmetric logarithmic derivative Cramer-Rao bound and Hayashi-Gill-Massar (HGM) bound. We investigate the optimal measurement which attains the HGM bound and discuss its properties. We show that the HGM bound for relevant parameters can be attained asymptotically by using some fraction of given $n$ quantum states to estimate the phase parameter. We also discuss the Holevo bound which can be attained asymptotically by a collective measurement.
description: 12 pages, typos corrected, new references added
The curious case of large-N expansions on a (pseudo)sphere
Creators: name: Polyakov, Alexander M.
name: Saleem, Zain H.
name: Stokes, James
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: We elucidate the large-N dynamics of one-dimensional sigma models with spherical and hyperbolic target spaces and find a duality between the Lagrange multiplier and the angular momentum. In the hyperbolic model we propose a new class of operators based on the irreducible representations of hyperbolic space. We also uncover unexpected zero modes which lead to the double scaling of the 1/N expansion and explore these modes using Gelfand-Dikiy equations.
description: 18 pages, 3 figures
Invisible nanowires with interfering electric and toroidal dipoles
Creators: name: Liu, Wei
name: Zhang, Jianfa
name: Lei, Bing
name: Hu, Haojun
name: Miroshnichenko, Andrey E.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: By studying the scattering of normally incident planewaves by a single nanowire, we reveal the indispensable role of toroidal multipole excitation in multipole expansions of radiating sources. It is found that for both p-polarized and s-polarized incident waves, toroidal dipoles can be effectively excited within homogenous dielectric nanowires in the optical spectrum regime. We further demonstrate that the plasmonic core-shell nanowires can be rendered invisible through destructive interference of the electric and toroidal dipoles, which may inspire many nanowire based light-matter interaction studies, and incubate biological and medical applications that require non-invasive detections and measurements.
description: Three Figures; Four pages; Comments welcomed
Points of Peace: Hideyoshi’s Sword Hunt and the Hidden Violence of the Great Peace
Creators: name: McClory, Megan
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2022

description: Through a study of the unification policies of Toyotomi Hideyoshi, I highlight a more complete image of commoner politics and power in order to explain the two hundred years of peace that followed the Sengoku Period. I narrow in on the Sword Hunt Edict of 1588, which removed all forms of weapons from the non-samurai groups and solidified the social order. My research addresses the power retained by the non-elite population, who had a long history of protests (ikki) and self-government (jiriki kyusei) and who made up the bulk of the armed forces during war. By studying the well-documented history of peasant protests in conjunction with the peace policies, I emphasize the contradictory nature and the limitations of this armistice; for most of the country, ‘peace’ was a relative term and the general populace continued to use violence and other forms of mass protest to demonstrate their influence.
Rice farmers’ demands for productive services: evidence from Chinese farmers
Creators: name: Li, Qi
name: Li, Kai
name: Li, Qi
name: Li, Kai
Publisher: name: Unknown
Year: 2020
Subjects: subject: Farm Management
subject: Production Economics
subject: productive services
subject: green productive technologies
subject: rice farmers
subject: demand intensity
subject: impact factors

description: Based on the data of 601 rice farmers in Zhejiang and Jiangsu provinces in China, we analyzed the type and intensity of farmers’ demands for productive services and the factors influencing agricultural green transformation in this developing country. The results show that rice farmers most urgently demand services including plant protection information, seedling supply, and unified prevention and treatment, with lower demand for services providing information about materials and soil. Given the consistency of productive services at the village level, we used a hierarchical linear model to analyze factors influencing farmer demand. The results show that for farmers with low levels of technology adoption, their demands for the services are significantly impacted by economic development level, production areas, rice planting labor, and technical knowledge, whereas for farmers with high levels of technology adoption, village service levels and production areas significantly affect their service demands.
On Soft Limits of Large-Scale Structure Correlation Functions
Creators: name: Ben-Dayan, Ido
name: Konstandin, Thomas
name: Porto, Rafael A.
name: Sagunski, Laura
Publisher: name: arXiv
Year: 2014
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We study soft limits of correlation functions for the density and velocity fields in the theory of structure formation. First, we re-derive the (resummed) consistency conditions at unequal times using the eikonal approximation. These are solely based on symmetry arguments and are therefore universal. Then, we explore the existence of equal-time relations in the soft limit which, on the other hand, depend on the interplay between soft and hard modes. We scrutinize two approaches in the literature: The time-flow formalism, and a background method where the soft mode is absorbed into a locally curved cosmology. The latter has been recently used to set up (angular averaged) `equal-time consistency relations'. We explicitly demonstrate that the time-flow relations and `equal-time consistency conditions' are only fulfilled at the linear level, and fail at next-to-leading order for an Einstein de-Sitter universe. While applied to the velocities both proposals break down beyond leading order, we find that the `equal-time consistency conditions' quantitatively approximates the perturbative results for the density contrast. Thus, we generalize the background method to properly incorporate the effect of curvature in the density and velocity fluctuations on short scales, and discuss the reasons behind this discrepancy. We conclude with a few comments on practical implementations and future directions.
description: 22 pages, extended discussion, v3: matches published version
Surface acoustic wave devices on bulk ZnO at low temperature
Creators: name: Magnusson, Einar B.
name: Williams, Benjamin H.
name: Manenti, Riccardo
name: Nam, Moon-Sun
name: Nersisyan, Ani
name: Peterer, Michael J.
name: Ardavan, Arzhang
name: Leek, Peter J.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Surface acoustic wave (SAW) devices based on thin films of ZnO are a well established technology. However, SAW devices on bulk ZnO crystals are not practical at room temperature due to the significant damping caused by finite electrical conductivity of the crystal. Here, by operating at low temperatures, we demonstrate effective SAW devices on the (0001) surface of bulk ZnO crystals, including a delay line operating at SAW wavelengths of λ = 4 and 6 μm and a one-port resonator at a wavelength of λ = 1.6 μm. We find that the SAW velocity is temperature dependent, reaching $v \simeq 2.68$ km/s at 10mK. Our resonator reaches a maximum quality factor of $Q_i \simeq 1.5\times 10^5$, demonstrating that bulk ZnO is highly viable for low temperature SAW applications. The performance of the devices is strongly correlated with the bulk conductivity, which quenches SAW transmission above about 200 K.
description: 4 pages, 3 figures
Quantum spin Hall effect of light
Creators: name: Bliokh, Konstantin Y.
name: Smirnova, Daria
name: Nori, Franco
Publisher: name: arXiv
Year: 2015
Subjects: subject: Optics (physics.optics)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Maxwell's equations, formulated 150 years ago, ultimately describe properties of light, from classical electromagnetism to quantum and relativistic aspects. The latter ones result in remarkable geometric and topological phenomena related to the spin-1 massless nature of photons. By analyzing fundamental spin properties of Maxwell waves, we show that free-space light exhibits an intrinsic quantum spin Hall effect, i.e., surface modes with strong spin-momentum locking. These modes are evanescent waves that form, e.g., surface plasmon-polaritons at vacuum-metal interfaces. Our findings illuminate the unusual transverse spin in evanescent waves and explain recent experiments demonstrating the transverse spin-direction locking in the excitation of surface optical modes. This deepens our understanding of Maxwell's theory, reveals analogies with topological insulators for electrons, and offers applications for robust spin-directional optical interfaces.
description: 8 pages, 4 figures, Supplementary Materials
title: Popular music careers: Arguing contemporary strategy for the hybridised but disempowered Akademi Fantasia musicians in the Malaysian music industry
Creators: name: Bin Muhid, Syamsul Hirdi
Publisher: name: University of Liverpool Repository
Year: 2022

description: This thesis examines pop musicians’ career experience by focusing on Malaysian music reality television ‘graduates’, namely Akademi Fantasia’s (AF’s) musicians. The show, which is a remarkable music television hybrid, holds the national record as the ‘Longest Running Singing Reality Television Show’ in the 2017 Malaysia Book of Records and has remarkably produced over 170 pop music stars in its 13 series. This cultural production phenomenon is interesting in its own right but is made particularly distinctive by the contrast between AF’s core proposition – that the show offers access to existing music industry star-making practices (‘talent spotting’ and career ‘nurturing’) – and the fact that the show’s ‘graduates’ are often represented as ‘instant noodles’, as individuals with low ‘staying power’ in the Malaysian music industry. Hence, this thesis begins with an enquiry through a practice-led approach, namely the author’s autoethnographic appraisal as a former AF graduate and a practising industry professional; and is supported by interviewing selected AF graduates. As the popular music career is neglected in the scholarly discourse, especially in the Malaysian context, this thesis fills that gap whilst offering a contemporary career strategy for the hybridised but disempowered pop musicians who the AF hybrid seems to be exploiting. In addition, it provides insights to such musicians, which will help them to prosper after leaving the show and survive in the increasingly disempowering music industry.
Swab pooling enables rapid expansion of high-throughput capacity for SARS-CoV-2 community testing
Creators: name: Fagg, Jamie
name: Beale, Rupert
name: Futschik, Matthias E
name: Turek, Elena
name: Chapman, David
name: Halstead, Susan
name: Jones, Marc
name: Cole-Hamilton, Joanna
name: Gunson, Rory
name: Sudhanva, Malur
name: Klapper, Paul E
name: Vansteenhouse, Harper
name: Tunkel, Sarah
name: Dominiczak, Anna
name: Peto, Timothy EA
name: Fowler, Tom
Publisher: name: The Francis Crick Institute
Year: 2023
Subjects: classificationCode: Infectious Disease
subject: Infectious Disease
classificationCode: Immunology
subject: Immunology
subject: FOS: Clinical medicine
classificationCode: Cell Biology
subject: Cell Biology

description: No description supplied
The evolution of the cold interstellar medium in galaxies following a starburst
Creators: name: Rowlands, K.
name: Wild, V.
name: Nesvadba, N.
name: Sibthorpe, B.
name: Mortier, A.
name: Lehnert, M.
name: da Cunha, E.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We present the evolution of dust and molecular gas properties in a sample of 11 $z\sim0.03$ starburst to post-starburst (PSB) galaxies selected to span an age sequence from ongoing starburst to 1 Gyr after the starburst ended. All PSBs harbour significant molecular gas and dust reservoirs and residual star formation, indicating that complete quenching of the starburst due to exhaustion or expulsion of gas has not occurred during this timespan. As the starburst ages, we observe a clear decrease in the star-formation efficiency, molecular gas and SFR surface density, and effective dust temperature, from levels coincident with starburst galaxies to those of normal star-forming galaxies. These trends are consistent with a natural decrease in the SFR following consumption of molecular gas by the starburst, and corresponding decrease in the interstellar radiation field strength as the starburst ages. The gas and dust contents of the PSBs are coincident with those of star-forming galaxies and molecular gas-rich early-type galaxies, and are not consistent with galaxies on the red-sequence. We find no evidence that the global gas reservoir is expelled by stellar winds or AGN feedback. Our results show that although a strong starburst in a low-redshift galaxy may cause the galaxy to ultimately have a lower specific SFR and be of an earlier morphological type, the galaxy will remain in the "green valley" for an extended time. Multiple such episodes may be needed to complete migration of the galaxy from the blue- to red-sequence.
description: 22 pages including 4 pages of appendices, 14 figures, 4 tables. Accepted for publication in MNRAS. Revised to match published version
Value chain impact of the increased hilsa shad (Tenualosa ilisha) harvest in Bangladesh
Creators: name: Khan, Akhtaruzzaman
name: Wahab, Abdul
name: Haque, A.B.M. Mahfuzul
name: Nahiduzzaman, M.
name: Phillips, Michael J.
name: Khan, Akhtaruzzaman
name: Wahab, Abdul
name: Haque, A.B.M. Mahfuzul
name: Nahiduzzaman, M.
name: Phillips, Michael J.
Publisher: name: Unknown
Year: 2020
Subjects: Agricultural and Food Policy
Production Economics

description: Hilsa shad is the largest single fish species, contributing 12% of the total fish production in Bangladesh. Since the rapid decline of its harvest in early 2000, the government of Bangladesh took various initiatives to accelerate the hilsa production and introduced the hilsa fisheries management action plan in 2005. Under WorldFish led enhanced coastal fisheries project, implemented in partnership with the Department of Fisheries, the hilsa fishery reversed and experienced record harvest in 2016. Therefore, this study was undertaken to explore the contributions and benefits of this increased hilsa shad production among value chain actors. The results revealed that increased catches have significant impacts on the volumes of hilsa that were handled by the value chain actors, which depressed market price along the value chain. However, the increased amounts of hilsa harvested compensated for the reduced price and led to increased profits, increased household incomes of the value chain actors, and enhanced fish consumption at the household levels. The increased hilsa catch also had positive and significant impacts on credit repayment. Therefore, the incentive-based co-management system deserves continuation to improve the livelihood of the poor hilsa fishers, to increase the income of the value chain actors and to ensure a sustainable hilsa fishery for Bangladesh.
Did Turkey break the 1936 Montreux Convention to help Russia?
Creators: name: Tyagi, Sunil
Publisher: name: figshare
Year: 2022
Subjects: Uncategorized

description: This paper describes Turkey's diplomatic juggling act as a member of NATO and a country with close connections to Moscow is on display once again with the apparent transit of a merchant vessel carrying military equipment for Russia from Syria via the Bosphorous Strait.
Religiöser Fundamentalismus in Christentum, Judentum und Islam
Creators: name: Bürkle, Horst
Publisher: name: Internationale katholische Zeitschrift Communio
Year: 2022

description: Internationale katholische Zeitschrift Communio, Bd. 32 Nr. 3 (2003): Internationale katholische Zeitschrift Communio, Band 32, Heft 3
Singular conformally invariant trilinear forms, I Multiplicity one results
Creators: name: Clerc, Jean-Louis
Publisher: name: arXiv
Year: 2014
Subjects: subject: Representation Theory (math.RT)
subject: FOS: Mathematics
subject: 22E45, 43A80

description: A normalized holomorphic family (depending on $\boldsymbol λ\in \mathbb C^3$) of conformally invariant trilinear forms on the sphere is studied. Its zero set $Z$ is described. For $\boldsymbol λ\notin Z$, the multiplicity of the space of conformally invariant trilinear forms is shown to be 1, except perhaps for a denumerable subset.
description: This second version gives a positive answer to the conjecture stated in the first version