cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
$f(R)$-gravity after the detection of the orbital precession of the S2 star around the Galactic centre massive black hole
Creators: name: de Martino, Ivan
name: della Monica, Riccardo
name: de Laurentis, Mariafelicia
Publisher: name: arXiv
Year: 2021
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: The GRAVITY Collaboration achieved the remarkable detection of the orbital precession of the S2 star around the Galactic centre supermassive black hole, providing yet another proof of the validity of the General Relativity. The departure from the Schwarzschild precession is encoded in the parameter $f_{\rm SP}$ which multiplies the predicted general relativistic precession. Such a parameter results to be $f_{\rm SP}=1.10\pm0.19$, which is consistent with General Relativity ($f_{\rm SP}=1$) at 1$σ$ level. Nevertheless, this parameter may also hide an effect of modified theories of gravity. Thus, we consider the orbital precession due to the Yukawa-like gravitational potential arising in the weak field limit of $f(R)$-gravity, and we use the current bound on the $f_{\rm SP}$ to constrain the strength and the scale length of the Yukawa-like potential. No deviation from GR are revealed at scale of $λ<6300$ AU with the strength of the Yukawa potential restricted to $δ= -0.01_{-0.14}^{+0.61}$.
description: 8 pages, 1 Figure, and Supplemental Materials. Submitted to PRD
Intrinsic electric polarization in spin-orbit coupled semiconductor heterostructures
Creators: name: Rodina, A. V.
name: Alekseev, A. Yu.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We present Maxwell equations with source terms for the electromagnetic field interacting with a moving electron in a spin-orbit coupled semiconductor heterostructure. We start with the eight--band ${\bm k}{\bm p}$ model and derive the electric and magnetic polarization vectors using the Gordon--like decomposition method. Next, we present the ${\bm k}{\bm p}$ effective Lagrangian for the nonparabolic conduction band electrons interacting with electromagnetic field in semiconductor heterostructures with abrupt interfaces. This Lagrangian gives rise to the Maxwell equations with source terms and boundary conditions at heterointerfaces as well as equations for the electron envelope wave function in the external electromagnetic field together with appropriate boundary conditions. As an example, we consider spin--orbit effects caused by the structure inversion asymmetry for the conduction electron states. We compute the intrinsic contribution to the electric polarization of the steady state electron gas in asymmetric quantum well in equilibrium and in the spin Hall regime. We argue that this contribution, as well as the intrinsic spin Hall current, are not cancelled by the elastic scattering processes.
description: 12 pages, 3 figures
Two-loop leading colour QCD helicity amplitudes for top quark pair production in the gluon fusion channel
Creators: name: Badger, Simon
name: Chaubey, Ekta
name: Hartanto, Heribertus Bayu
name: Marzucca, Robin
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We present a complete set of analytic helicity amplitudes for top quark pair production via gluon fusion at two-loops in QCD. For the first time, we include corrections due to massive fermion loops which give rise to integrals over elliptic curves. We present the results of the missing master integrals needed to compute the amplitude and obtain an analytic form for the finite remainders in terms of iterated integrals using rationalised kinematics and finite field sampling. We also study the numerical evaluation of the iterated integrals.
description: 38 pages, 2 tables, 11 figures. v2 references added
Current-Voltage Curves for Molecular Junctions Computed Using All-Electron Basis Sets
Creators: name: Bauschlicher,, Charles W.
name: Lawson, John W.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We present current-voltage (I-V) curves computed using all-electron basis sets on the conducting molecule. The all-electron results are very similar to previous results obtained using effective core potentials (ECP). A hybrid integration scheme is used that keeps the all-electron calculations cost competitive with respect to the ECP calculations. By neglecting the coupling of states to the contacts below a fixed energy cutoff, the density matrix for the core electrons can be evaluated analytically. The full density matrix is formed by adding this core contribution to the valence part that is evaluated numerically. Expanding the definition of the core in the all-electron calculations significantly reduces the computational effort and, up to biases of about 2 V, the results are very similar to those obtained using more rigorous approaches. The convergence of the I-V curves and transmission coefficients with respect to basis set is discussed. The addition of diffuse functions is critical in approaching basis set completeness.
The electron mass shift in an intense plane wave
Creators: name: Di Piazza, A.
name: Pătuleanu, T.
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Upcoming experiments on the interaction of electrons with intense laser fields are envisaged to become more and more accurate, which calls for theoretical computations of rates and probabilities with correspondingly higher precision. In strong-field QED this requires the knowledge of radiative corrections to be added to leading-order results. Here, we first derive the mass operator in momentum space of an off-shell electron in the presence of an arbitrary plane wave. By taking the average of the mass operator in momentum space over an on-shell electron state, we obtain a new representation, equivalent to but more compact than the known one computed in [Sov. Phys. JETP \textbf{42}, 400 (1975)]. Moreover, we use the obtained mass operator to determine the electron mass shift in an arbitrary plane wave, which generalizes the already known expression in a constant crossed field. The spin-dependent part of the electron mass shift can be related to the anomalous magnetic moment of the electron in the plane wave. We show that within the locally constant field approximation it is possible to conveniently define a local expression of the electron anomalous magnetic moment, which reduces to the known expression in a constant crossed field. Beyond the locally constant field approximation, however, the interaction between the electron and the plane wave is non-local such that it is not possible to conveniently introduce an electron anomalous magnetic moment.
description: 22 pages, 3 figures
Abelian parton state for the $ν=4/11$ fractional quantum Hall effect
Creators: name: Balram, Ajit C.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We consider the fractional quantum Hall effect at the filling factor $ν=4/11$, where two independent experiments have observed a well-developed and quantized Hall plateau. We examine the Abelian state described by the "$4\bar{2}1^{3}$" parton wave function and numerically demonstrate it to be a plausible candidate for the ground state at $ν=4/11$. We work out the low-energy effective theory of the $4\bar{2}1^{3}$ edge and make predictions for experimentally measurable properties of the state.
description: 7 pages and 1 figure, published version
Renormalizable acausal theories of classical gravity coupled with interacting quantum fields
Creators: name: Anselmi, Damiano
name: Halat, Milenko
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We prove the renormalizability of various theories of classical gravity coupled with interacting quantum fields. The models contain vertices with dimensionality greater than four, a finite number of matter operators and a finite or reduced number of independent couplings. An interesting class of models is obtained from ordinary power-counting renormalizable theories, letting the couplings depend on the scalar curvature R of spacetime. The divergences are removed without introducing higher-derivative kinetic terms in the gravitational sector. The metric tensor has a non-trivial running, even if it is not quantized. The results are proved applying a certain map that converts classical instabilities, due to higher derivatives, into classical violations of causality, whose effects become observable at sufficiently high energies. We study acausal Einstein-Yang-Mills theory with an R-dependent gauge coupling in detail. We derive all-order formulas for the beta functions of the dimensionality-six gravitational vertices induced by renormalization. Such beta functions are related to the trace-anomaly coefficients of the matter subsector.
description: 36 pages; v2: CQG proof-corrected version
Constraints on Equivalence Principle Violation from Gamma Ray Bursts
Creators: name: Bartlett, Deaglan J.
name: Bergsdal, Dexter
name: Desmond, Harry
name: Ferreira, Pedro G.
name: Jasche, Jens
Publisher: name: arXiv
Year: 2021
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Theories of gravity that obey the Weak Equivalence Principle have the same Parametrised Post-Newtonian parameter $γ$ for all particles at all energies. The large Shapiro time delays of extragalactic sources allow us to put tight constraints on differences in $γ$ between photons of different frequencies from spectral lag data, since a non-zero $Δγ$ would result in a frequency-dependent arrival time. The majority of previous constraints have assumed that the Shapiro time delay is dominated by a few local massive objects, although this is a poor approximation for distant sources. In this work we consider the cosmological context of these sources by developing a source-by-source, Monte Carlo-based forward model for the Shapiro time delays by combining constrained realisations of the local density field using the Bayesian origin reconstruction from galaxies algorithm with unconstrained large-scale modes. Propagating uncertainties in the density field reconstruction and marginalising over an empirical model describing other contributions to the time delay, we use spectral lag data of Gamma Ray Bursts from the BATSE satellite to constrain $Δγ< 2.1 \times 10^{-15}$ at $1 σ$ confidence between photon energies of $25 {\rm \, keV}$ and $325 {\rm \, keV}$.
description: 14 pages, 7 figures, 3 tables, accepted for publication in Physical Review D
MRI-active inner regions of protoplanetary discs. I. A detailed model of disc structure
Creators: name: Jankovic, Marija R.
name: Owen, James E.
name: Mohanty, Subhanjoy
name: Tan, Jonathan C.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Short-period super-Earth-sized planets are common. Explaining how they form near their present orbits requires understanding the structure of the inner regions of protoplanetary discs. Previous studies have argued that the hot inner protoplanetary disc is unstable to the magneto-rotational instability (MRI) due to thermal ionization of potassium, and that a local gas pressure maximum forms at the outer edge of this MRI-active zone. Here we present a steady-state model for inner discs accreting viscously, primarily due to the MRI. The structure and MRI-viscosity of the inner disc are fully coupled in our model; moreover, we account for many processes omitted in previous such models, including disc heating by both accretion and stellar irradiation, vertical energy transport, realistic dust opacities, dust effects on disc ionization and non-thermal sources of ionization. For a disc around a solar-mass star with a standard gas accretion rate ($\dot{M}$$\sim$$10^{-8}$M$_\odot$yr$^{-1}$) and small dust grains, we find that the inner disc is optically thick, and the accretion heat is primarily released near the midplane. As a result, both the disc midplane temperature and the location of the pressure maximum are only marginally affected by stellar irradiation, and the inner disc is also convectively unstable. As previously suggested, the inner disc is primarily ionized through thermionic and potassium ion emission from dust grains, which, at high temperatures, counteract adsorption of free charges onto grains. Our results show that the location of the pressure maximum is determined by the threshold temperature above which thermionic and ion emission become efficient.
description: accepted for publication in MNRAS
Notes on instantons in topological field theory and beyond
Creators: name: Frenkel, E.
name: Losev, A.
name: Nekrasov, N.
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Quantum Algebra (math.QA)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: This is a brief summary of our studies of quantum field theories in a special limit in which the instantons are present, the anti-instantons are absent, and the perturbative corrections are reduced to one-loop. We analyze the corresponding models as full-fledged quantum field theories, beyond their topological sector. We show that the correlation functions of all, not only topological (or BPS), observables may be studied explicitly in these models, and the spectrum may be computed exactly. An interesting feature is that the Hamiltonian is not always diagonalizable, but may have Jordan blocks, which leads to the appearance of logarithms in the correlation functions. We also find that in the models defined on Kahler manifolds the space of states exhibits holomorphic factorization. In particular, in dimensions two and four our theories are logarithmic conformal field theories.
description: 20 pages
On Drinfeld's second realization of the AdS/CFT su(2|2) Yangian
Creators: name: Spill, Fabian
name: Torrielli, Alessandro
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: Quantum Algebra (math.QA)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: We construct Drinfeld's second realization of the Yangian based on psu(2|2)xR^3 symmetry. The second realization is traditionally more suitable for deriving the quantum double and the universal R matrix with respect to the first realization, originally obtained by Beisert, and it is generically more useful in order to study finite dimensional representations. We show that the two realization are isomorphic, where the isomorphism is almost the standard one given by Drinfeld for simple Lie algebras, but needs some crucial corrections to account for the central charges. We also evaluate the generators of the second realization on the fundamental representation, finding the interesting result that the rapidity variable for some generators gets boosted by the energy eigenvalue.
description: 25 pages, v2: typos corrected, references added
The contribution of Ebola viral load at admission to mortality in a MSF case management centre, Sierra Leone, 2014
Creators: name: Fitzpatrick, Gabriel
name: Vogt, Florian
name: Gbabai, Osman
name: Decroo, Tom
name: Keane, Marian
name: Clerck, Hilde De
name: Grolla, Allen
name: Stinson, Kathryn
name: Brechard, Raphael
name: Herp, Michel Van
Publisher: name: F1000Research
Year: 2015

description: The current Ebola virus disease (EVD) outbreak in West Africa commenced in December 2013 and has become the largest yet documented. In June 2014, Médecins Sans Frontières (MSF) constructed an Ebola case management centre (CMC) in the district of Kailahun, Sierra Leone in response to an escalating number of cases in the region. This study describes characteristics associated with mortality among EVD positive patients admitted to the Kailahun CMC between June and October 2014.These findings highlight the importance Ebola viral load at admission has on mortality outcomes and could be used to cohort cases with viral loads greater than 10 million copies per millilitre into dedicated wards with more intensive medical support to further reduce mortality.
Convective cooling and fragmentation of gravitationally unstable disks
Creators: name: Rafikov, Roman R.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Gravitationally unstable disks can fragment and form bound objects provided that their cooling time is short. In protoplanetary disks radiative cooling is likely to be too slow to permit formation of planets by fragmentation within several tens of AU from the star. Recently, convection has been suggested as a faster means of heat loss from the disk but here we demonstrate that it is only marginally more efficient than the radiative cooling. The crucial factor is the rate at which energy can be radiated from the disk photosphere, which is robustly limited from above in the convective case by the adiabatic temperature gradient (given a certain midplane temperature). Thus, although vigorous convection is definitely possible in disks, the inefficiency of radiative loss from the photosphere may create a bottleneck limiting the ability of the disk to form self-gravitating objects. Based on this argument we derive a set of analytical constraints which diagnose the susceptibility of an unstable disk to fragmentation and show that the formation of giant planets by fragmentation of protoplanetary disks is unlikely to occur at distances of tens of AU. At the same time these constraints do not preclude the possibility of fragmentation and star formation in accretion disks around supermassive black holes.
description: 8 pages, submitted to ApJ
Is there added value in separating admitted Ebola patients into Suspect and Highly-Suspect pending laboratory confirmation?
Creators: name: Vogt, Florian
name: Fitzpatrick, Gabriel
name: Patten, Gabriela
name: Bergh, Rafael Van Den
name: Stinson, Kathryn
name: Pandolfi, Luigi
name: Squire, James S.
name: Decroo, Tom
name: Declerck, Hilde
name: Herp, Michel Van
Publisher: name: F1000Research
Year: 2015

description: The aim of this study was to investigate how well the MSF triage system serves to separate patients with subsequent positive laboratory test (true-positive admissions) from patients who were initially admitted on clinical grounds but subsequently tested negative (false-positive admissions).

This was the first assessment of the MSF Ebola patient triage system. Results for accurate patient classification of true-positive admissions into the highly-suspect ward and false-positive admissions into the suspect ward were unconvincing.

Current MSF guidelines should be changed. Patients should be accomodated in single compartments pending laboratory confirmation wherever possible. Alternatively, a simplified separation into liquid and non-liquid producing patients should be considered and evaluated concurrently.

It is crucial to improve the initial triage step on whether or not to admit a patient in the first place.

MSF should continue to lobby for the development of a point-of-care EBOV diagnostic test that is reliable, accurate, robust, mobile, affordable, and easy to use with high throughput capacity and quick turnaround time.
Fusion and Direct Reactions of Halo Nuclei at Energies around the Coulomb Barrier
Creators: name: Keeley, N.
name: Raabe, R.
name: Alamanos, N.
name: Sida, J. L.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: The present understanding of reaction processes involving light unstable nuclei at energies around the Coulomb barrier is reviewed. The effect of coupling to direct reaction channels on elastic scattering and fusion is investigated, with the focus on halo nuclei. A list of definitions of processes is given, followed by a review of the experimental and theoretical tools and information presently available. The effect of couplings on elastic scattering and fusion is studied with a series of model calculations within the coupled-channels framework. The experimental data on fusion are compared to "bare" no-coupling one-dimensional barrier penetration model calculations. On the basis of these calculations and comparisons with experimental data, conclusions are drawn from the observation of recurring features. The total fusion cross sections for halo nuclei show a suppression with respect to the "bare" calculations at energies just above the barrier that is probably due to single neutron transfer reactions. The data for total fusion are also consistent with a possible sub-barrier enhancement; however, this observation is not conclusive and other couplings besides the single-neutron channels would be needed in order to explain any actual enhancement. We find that a characteristic feature of halo nuclei is the dominance of direct reactions over fusion at near and sub-barrier energies; the main part of the cross section is related to neutron transfers, while calculations indicate only a modest contribution from the breakup process.
description: 52 pages, review paper, accepted for publication in "Progress in Particle and Nuclear Physics"
The missing maps project: from community engagement to humanitarian response
Creators: name: Masters, Pete
Publisher: name: F1000Research
Year: 2015

description: These slides present maps of slum areas, showing the differences and limitations of various mapping techniques.In conclusion, it is suggested that a combination of mapping methods are used. Remote volunteers will trace satellite images onto OpenStreetMap, community volunteers will add details (street names, evacuation centres etc.), finally humanitarian organizations use mapped information to plan disaster  response activities. This approach capitalises on the goodwill of humanitarian volunteers and provides a more collaborative, scalable and ethical approach to mapping.
Mobilisation of local people and technology in mapping for the Sierra Leone Ebola epidemic response
Creators: name: Gayton, Ivan
name: Lochlainn, Laura Nic
name: Theocharopoulos, Georgios
name: Bockarie, Stanley
name: Caleo, Grazia
Publisher: name: F1000Research
Year: 2015

description: The difficulty in rapidly locating villages of Ebola cases and their contacts is often due to: villages with similar names in different chiefdoms, villages with alternate names and missing locations of recent villages and satellite villages. The aim of this project is to improve mapping within the Tonkolli district by mobilising local people in order to obtain reliable geographical information to trace Ebola cases and their contacts.

 We require modest investment to gather large-scale geographic and population data rapidly. Benefits stem from the ability to use locally-appropriate technology in genuine partnership with local people and could be used for future emergencies to improve response efforts.
Meeting the health needs of Syrian refugees in Jordan: a novel model for non-communicable disease care in a refugee setting
Creators: name: Gunnarsson, Jon
name: Zughul, Ramy
name: Tarwaneh, Mohammed
name: Sarwat  Al Attas
Publisher: name: F1000Research
Year: 2015

description: The aim of this project is to explore a novel model of Non Communicable Diseases (NCD) care and early clinical outcomes. We will also explore the feasibility of using Motivational Interviewing (MI) on lifestyle change with Syrian refugees and its early outcomes.A patient-centered model of care for NCDs appears feasible in a refugee context and early clinical outcomes look promising. MI seems to improve motivation towards lifestyle change in Syrian refugees and seems feasible in the context.
Ireland's Ocean Economy Report 2017
Creators: name: Vega, Amaya
name: Hynes, Stephen
name: Vega, Amaya
name: Hynes, Stephen
Publisher: name: Unknown
Year: 2017
Subjects: subject: Environmental Economics and Policy
subject: Ireland
subject: Marine Economy
subject: Ocean Statistics

description: Marine socio-economic data are not readily available in Ireland. However, they are essential in determining the value of Ireland’s ocean economy, so as to realise its full potential. SEMRU began the extensive task of data collection and analysis of Ireland’s ocean economy in 2009. This resulted in the publication of a series of bi-annual ocean economy reports, to which, this report is the latest addition. The report provides a quantification and realistic monitoring of Ireland’s ocean economy over time and presents a complete and comparable sectoral profile across the ocean economy, which allows us to observe progress on the targets set out in the Government’s Integrated Marine Plan for Ireland - Harnessing Our Ocean Wealth (2012). The reference year for this report is 2014. The report includes a set of economic projections that forecast Ireland’s ocean economy up to 2016. For the first time, this report includes a full 2008-2016 data series illustrating Ireland’s ocean economic performance and trends over an eight-year period.
Graspeo: an agile knowledge management system for MSF
Creators: name: Mazuze, Jorge
name: Gillet, Denis
Publisher: name: F1000Research
Year: 2015

description: These slides present a social media platform for seamless and ubiquitous knowledge management, document sharing and discussion support. Graspeo was developed initially for academia under the Graasp name and extended jointly for NGOs as a collaboration project between EPFL, MSF OCG (Operational Center in Geneva), and the EU.Graspeo in a nutshell:

• Create, be invited, or join a shared private or public space

• As owner, editor, or viewer

• Contribute with, access to, or search for documents

• Discuss in spaces or comment documents, get notifications

• Work in the cloud or in the field
A geographical information system for MSF operational needs
Creators: name: Borderie, Sylvie De La
name: Soupart, Mathieu
Publisher: name: F1000Research
Year: 2015

description: Geographic Information Systems (GIS) link location (spatial) and database (tabular) information, and enable visualisation of patterns, relationships, and trends. A GIS uses geography as its organizing principle. This process gives a new perspective to data analysis that cannot be seen in a table or list format.We found this pilot to be successful, utilising this innovative approach to improve GIS culture.

 
Lattice Boltzmann simulations of phase separation in chemically reactive binary fluids
Creators: name: Furtado, K.
name: Yeomans, J. M.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: We use a lattice Boltzmann method to study pattern formation in chemically reactive binary fluids in the regime where hydrodynamic effects are important. The coupled equations solved by the method are a Cahn-Hilliard equation, modified by the inclusion of a reactive source term, and the Navier-Stokes equations for conservation of mass and momentum. The coupling is two-fold, resulting from the advection of the order-parameter by the velocity field and the effect of fluid composition on pressure. We study the the evolution of the system following a critical quench for a linear and for a quadratic reaction source term. Comparison is made between the high and low viscosity regimes to identify the influence of hydrodynamic flows. In both cases hydrodynamics is found to influence the pathways available for domain growth and the eventual steady-states.
description: 15 pages, 21 figure
Making the health sector responsive to sexual violence: lessons learnt
Creators: name: Bhate-Deosthali, Padma
name: Rege, Sangeeta
name: Jagadeesh Narayan Reddy
Publisher: name: F1000Research
Year: 2015

description: Here we aimed to make the health sector more responsive to sexual violence, and pushed for it to be taken into consideration much more as it is a persistent problem.The lessons learned are that there is now guidance on medical evidence and its limitations for doctors, prosecution, police and judges and prosecution will be able to push for convictions now they can distinguish the limits of medical evidence.
A neglected stigmatising disease: cutaneous leishmaniasis in Balochistan, Pakistan
Creators: name: Chenery Ann E Lim
name: Tan, Cecilio L
name: Urazgani, Maryam
Publisher: name: F1000Research
Year: 2015

description: These slides discuss cutaneous leishmaniasis (CL) in Balochistan, Pakistan and the challenges surrounding this neglected disease.
● CL data: we will continue analyzing program data and share achievements & constraints

● CL treatment can be integrated in OPD

● MoH can lobby for CL treatment in region

● Good collaboration with MoH is possible

● Available treatment still effective: LOBBY to increase priority and budget allocations

● Need to improve public awareness of CL in community
Καταχρηστικοί ΓΟΣ στις τραπεζικές συμβάσεις
Creators: name: Καρακουλάκη, Αποστολία Παναγιώτη
Publisher: name: Aristotle University of Thessaloniki
Year: 2018
Subjects: Γενικός Όρος Συναλλαγών
Καταχρηστική ρήτρα
Τραπεζική σύμβαση
General contracting term
Abusive clause
Banking contract

description: Αντικείμενο της παρούσας διπλωματικής εργασίας αποτελεί η ανάλυση των γενικών όρων συναλλαγών των τραπεζικών συμβάσεων, το περιεχόμενο των οποίων ετέθη υπό δικαστικό έλεγχο. Συγκεκριμένα, αναφέρονται διεξοδικά τα μέσα ελέγχου του κύρους του περιεχομένου τους, η κατανόηση, ωστόσο, των οποίων προϋποθέτει την αποσαφήνιση κρίσιμων ζητημάτων που αφορούν μεταξύ άλλων στη νομική φύση των όρων αυτών, στα λοιπά στάδια ελέγχου τους, τα οποία προηγούνται, δηλαδή στον έλεγχο της ένταξής τους στην σύμβαση και στον έλεγχο μέσω της ερμηνείας τους, αλλά και στο υποκειμενικό πεδίο εφαρμογής του ν. 2251/1994. Έμφαση δίνεται, ακόμη, στην προβλεπόμενη από το νόμο ατομική και συλλογική προστασία του θιγόμενου προσώπου. Στο δεύτερο μέρος, παρατίθενται εκτενώς οι γενικοί όροι των τραπεζικών συναλλαγών που διήλθαν τη βάσανο του δικαστικού ελέγχου του κύρους τους. Επισημαίνεται ιδιαίτερα, μεταξύ άλλων, η ειδική περίπτωση των δανείων σε ελβετικό φράγκο, τα οποία βρίσκονται στο επίκεντρο του επιστημονικού και νομολογιακού ενδιαφέροντος. Καταληκτικά εκτίθεται η σημασία του ακυρωτικού ή μη αποτελέσματος της συλλογικής δίκης και η επίδραση που αυτό έχει επί της μεταγενέστερης ατομικής δίκης του μεμονωμένου καταναλωτή – αντισυμβαλλομένου του πιστωτικού ιδρύματος, όπως έχει καταδείξει η εκτενής νομολογία σε υποθέσεις κρίσης του περιεχομένου των γενικών όρων των τραπεζικών συμβάσεων.
description: The current dissertation’s subject is to analyze the general terms of banking contracts whose content has been subject of judicial review. Specifically, there is a thorough analysis of the forms of examining the validity of their content, the understanding of which presupposes the clarification of crucial issues concerning the legal nature of these terms, the rest of the preceding forms of their examination, videlicet the rules of their inclusion in the contract and their interpretation, as well as the subjective field where the Greek Law 2251/1994 is applied. In addition, emphasis is given to the individual and collective forms of protection, which can be pursued by affected individuals. The second part examines extensively the general terms of banking contracts, the validity of which has been under judicial review. The analysis particularly focuses on loans in Swiss franc (CHF), among other relevant issues, which is in the centre of the scientific and judicial interest. The dissertation’s final chapter highlights both the importance of the judgment on a collective lawsuit, which either nullifies the term or not, as well as its impact on the subsequent judgment on the lawsuit sued by an individual consumer/contracting part, based on jurisprudence in cases concerning the judgment of the content of the general terms of banking contracts.
Asymptotic quasinormal modes of a noncommutative geometry inspired Schwarzschild black hole
Creators: name: Giri, Pulak Ranjan
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We study the asymptotic quasi-normal modes for the scalar perturbation of the non-commutative geometry inspired Schwarzschild black hole in (3+1) dimensions. We have considered $M\geq M_0$, which effectively correspond to a single horizon Schwarzschild black hole with correction due to non-commutativity. We have shown that for this situation the real part of the asymptotic quasi-normal frequency is proportional to $\ln (3)$. The effect of non-commutativity of spacetime on quasi-normal frequency arises through the constant of proportionality, which is Hawking temperature $T_H(θ)$. We also consider the two horizon case and show that in this case also the real part of the asymptotic quasi-normal frequency is proportional to $\ln(3)$.
description: Accepted in Int. J. Mod. Phys. A
On Differences of Zeta Values
Creators: name: Flajolet, Philippe
name: Vepstas, Linas
Publisher: name: arXiv
Year: 2006
Subjects: subject: Classical Analysis and ODEs (math.CA)
subject: FOS: Mathematics
subject: 11M06; 30B50; 39A05; 41A60

description: Finite differences of values of the Riemann zeta function at the integers are explored. Such quantities, which occur as coefficients in Newton series representations, have surfaced in works of Maslanka, Coffey, Baez-Duarte, Voros and others. We apply the theory of Norlund-Rice integrals in conjunction with the saddle point method and derive precise asymptotic estimates. The method extends to Dirichlet L-functions and our estimates appear to be partly related to earlier investigations surrounding Li's criterion for the Riemann hypothesis.
description: 18 pages
Non-monotonicity in the quantum-classical transition: Chaos induced by quantum effects
Creators: name: Kapulkin, Arie
name: Pattanayak, Arjendu K.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The transition from classical to quantum behavior for chaotic systems is understood to be accompanied by the suppression of chaotic effects as the relative size of $\hbar$ is increased. We show evidence to the contrary in the behavior of the quantum trajectory dynamics of a dissipative quantum chaotic system, the double-well Duffing oscillator. The classical limit in the case considered has regular behavior, but as the effective $\hbar$ is increased we see chaotic behavior. This chaos then disappears deeper into the quantum regime, which means that the quantum-classical transition in this case is non-monotonic in $\hbar$.
description: 4 pages; presentation modified significantly to demonstrate that quantum effects are indeed responsible for the `anomalous' chaos. 2 figures added
Lowest Landau-level description of a Bose-Einstein condensate in a rapidly rotating anisotropic trap
Creators: name: Fetter, Alexander L.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: A rapidly rotating Bose-Einstein condensate in a symmetric two-dimensional trap can be described with the lowest Landau-level set of states. In this case, the condensate wave function psi(x,y) is a Gaussian function of r^2 = x^2 + y^2, multiplied by an analytic function P(z) of the single complex variable z= x+ i y; the zeros of P(z) denote the positions of the vortices. Here, a similar description is used for a rapidly rotating anisotropic two-dimensional trap with arbitrary anisotropy (omega_x/omega_y le 1). The corresponding condensate wave function psi(x,y) has the form of a complex anisotropic Gaussian with a phase proportional to xy, multiplied by an analytic function P(zeta), where zeta is proportional to x + i beta_- y and 0 le beta_- le 1 is a real parameter that depends on the trap anisotropy and the rotation frequency. The zeros of P(zeta) again fix the locations of the vortices. Within the set of lowest Landau-level states at zero temperature, an anisotropic parabolic density profile provides an absolute minimum for the energy, with the vortex density decreasing slowly and anisotropically away from the trap center.
description: 13 pages, 1 figure
Echi derobertiani e familismo amorale in «Di questa vita menzognera» di Giuseppe Montesano
Creators: name: Palumbo Mosca, Raffaello
Publisher: name: Griseldaonline
Year: 2019
Subjects: potere; familismo; cultural studies; satira; società

description: Griseldaonline, V. 17 (2018)
Flexible entanglement-distribution network with an AlGaAs chip for secure communications
Creators: name: Appas, F.
name: Baboux, F.
name: Amanti, M. I.
name: Lemaître, A.
name: Boitier, F.
name: Diamanti, E.
name: Ducci, S.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: Quantum communication networks enable applications ranging from highly secure communication to clock synchronization and distributed quantum computing. Miniaturized, flexible, and cost-efficient resources will be key elements for ensuring the scalability of such networks as they progress towards large-scale deployed infrastructures. Here, we bring these elements together by combining an on-chip, telecom-wavelength, broadband entangled photon source with industry-grade flexible-grid wavelength division multiplexing techniques, to demonstrate reconfigurable entanglement distribution between up to 8 users in a resource-optimized quantum network topology. As a benchmark application we use quantum key distribution, and show low error and high secret key generation rates across several frequency channels, over both symmetric and asymmetric metropolitan-distance optical fibered links and including finite-size effects. By adapting the bandwidth allocation to specific network constraints, we also illustrate the flexible networking capability of our configuration. Together with the potential of our semiconductor source for distributing secret keys over a 60 nm bandwidth with commercial multiplexing technology, these results offer a promising route to the deployment of scalable quantum network architectures.
description: 12 pages, 8 figures
Monitoring stock-outs in national AIDS programme facilities in India: a case study by DNP+
Creators: name: Loon Gangte
name: Ahuja, Vikas
name: Lhungdim, Paul
name: Menghaney, Leena
name: Shailly  Gupta
Publisher: name: F1000Research
Year: 2015

description: DNP+’s Mission is to improve treatment services for people living with HIV/AIDS. In this study we monitored stocks of ARVs and diagnostics at ART centres in Delhi from the last 8 years; this retrospective study of daily monitoring of all 9 ART centres in Delhi from June 2012 to February 2015.Independent monitoring of the supply chain led to the identification of stock outs/shortages in public facility, this resulted in a behaviour change in clinic staff as they started to inform us more about stock-outs in their facility.
Active and passive case detection strategies for control of visceral leishmaniasis in Bangladesh
Creators: name: Manimoy Chakma
Publisher: name: F1000Research
Year: 2015

description: Our aims was to determine the yield of active case detection (ACD) in terms of number of cases of visceral leishmaniasis (VL) and post-kala-azar dermal leishmaniasis (PKDL) diagnosed and to compare it with that of diagnosed by passive case detection (PCD).

 There were successful active case finding strategies based on a cluster approach. An ACD strategy at the sub-district level resulted in an increased yield of VL and a much higher yield of PKDL.
Estimation of coefficients for modelling ships from sea trials using stepwise optimization methods and considering trim and draught conditions
Creators: name: Kim, Dae Won
Publisher: name: Universität Rostock
Year: 2018
Subjects: subject: 620 Engineering & allied operations

description: This thesis proposes a method for estimation of the hydrodynamic coefficients using full-scale sea trials and the system identification. Also, based on this, a proposal for a new estimation method that can consider various trim and draught conditions is given here. The new estimation method is in the form of suggesting an additional correction formula that can complement the existing empirical estimation formulas for the hydrodynamic coefficients involving different trim and draught parameters.
Gravitational waves from first-order phase transitions in Majoron models of neutrino mass
Creators: name: Di Bari, Pasquale
name: Marfatia, Danny
name: Zhou, Ye-Ling
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We show how the generation of right-handed neutrino masses in Majoron models may be associated with a first-order phase transition and accompanied by the production of a stochastic background of gravitational waves (GWs). We explore different energy scales with only renormalizable operators in the effective potential. If the phase transition occurs above the electroweak scale, the signal can be tested by future interferometers. We consider two possible energy scales for phase transitions below the electroweak scale. If the phase transition occurs at a GeV, the signal can be tested at LISA and provide a complementary cosmological probe to right-handed neutrino searches at the FASER detector. If the phase transition occurs below 100 keV, we find that the peak of the GW spectrum is two or more orders of magnitude below the putative NANOGrav GW signal at low frequencies, but well within reach of the SKA and THEIA experiments. We show how searches of very low frequency GWs are motivated by solutions to the Hubble tension in which ordinary neutrinos interact with the dark sector. We also present general calculations of the phase transition temperature and Euclidean action that apply beyond Majoron models.
description: 37 pages, 8 figures, 5 tables. Version to appear in JHEP
Title Excited state dynamics of liquid water: Insight from the dissociation reaction following two-photon excitation
Creators: name: Elles, Christopher G.
name: Shkrob, Ilya A.
name: Crowell, Robert A.
name: Bradforth, Stephen E.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: We use transient absorption spectroscopy to monitor the ionization and dissociation products following two-photon excitation of pure liquid water. The two decay mechanisms occur with similar yield for an excitation energy of 9.3 eV, whereas the major channel at 8.3 eV is dissociation. The geminate recombination kinetics of the H and OH fragments, which can be followed in the transient absorption probed at 267 nm, provide a window on the dissociation dynamics at the lower excitation energy. Modeling the OH geminate recombination indicates that the dissociating H atoms have enough kinetic energy to escape the solvent cage and one or two additional solvent shells. The average initial separation of H and OH fragments is 0.7+-0.2 nm. Our observation suggests that the hydrogen bonding environment does not prevent direct dissociation of an O-H bond in the excited state. We discuss the implications of our measurement for the excited state dynamics of liquid water and explore the role of those dynamics in the ionization mechanism at low excitation energies.
description: 25 pages, 5 figs, submitted to J Chem Phys
Perturbation Theory for Traveling Droplets
Creators: name: Pismen, L. M.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: Motion of chemically driven droplets is analyzed by applying a solvability condition of perturbed hydrodynamic equations affected by the adsorbate concentration. Conditions for traveling bifurcation analogous to a similar transition in activator-inhibitor systems are obtained. It is shown that interaction of droplets leads to either scattering of mobile droplets or formation of regular patterns, respectively, at low or high adsorbate diffusivity. The same method is applied to droplets running on growing terrace edges during surface freezing.
description: 9 pages, 11 figures
A Measurement of Third Level Marine Education & Training in Ireland
Creators: name: Vega, Amaya
name: Corless, Rebecca.
name: Vega, Amaya
name: Corless, Rebecca.
Publisher: name: Unknown
Year: 2016
Subjects: subject: Environmental Economics and Policy
subject: Marine training
subject: Marine education
subject: Ireland

description: This report provides an aggregate estimated value of Marine Education and Training in Ireland, in relation to the size of its ocean economy. The research estimates that the overall value of Marine Education and Training is €11.5m, which represents 0.4% of the total turnover of Ireland’s Ocean Economy. According to the latest SEMRU estimates1 , the overall turnover of Ireland’s ocean economy in 2012 was €4.2 billion, of which €1.3 billion was direct gross value added (GVA). This represents approximately 0.7% of national GDP. In 2012, Ireland’s ocean economy employed approximately 17,425 people (FTE).
Indirect decoherence in optical lattices and cold gases
Creators: name: Braun, Daniel
Publisher: name: arXiv
Year: 2006
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The interaction of two--level atoms with a common heat bath leads to an effective interaction between the atoms, such that with time the internal degrees of the atoms become correlated or even entangled. If part of the atoms remain unobserved this creates additional indirect decoherence for the selected atoms, on top of the direct decoherence due to the interaction with the heat bath. I show that indirect decoherence can drastically increase and even dominate the decoherence for sufficiently large times. I investigate indirect decoherence through thermal black body radiation quantitatively for atoms trapped at regular positions in an optical lattice as well as for atoms at random positions in a cold gas, and show how indirect coherence can be controlled or even suppressed through experimentally accessible parameters.
description: 12 pages, 1 figure