cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Higher early proximal migration of hemispherical cups with electrochemically applied hydroxyapatite (BoneMaster) on a porous surface compared with porous surface alone: a randomized RSA study with 53 patients
Creators: name: Jørgensen, Peter Bo
name: Daugaard, Henrik
name: Jakobsen, Stig Storgaard
name: Lamm, Martin
name: Søballe, Kjeld
name: Stilling, Maiken
Publisher: name: Taylor & Francis
Year: 2019
Subjects: subject: Space Science
subject: Medicine
subject: Cell Biology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Ecology
subject: FOS: Biological sciences
subject: Immunology
subject: FOS: Clinical medicine
subject: Developmental Biology
subject: Cancer

description: Background and purpose — BoneMaster (BM) is an electrochemically deposited hydroxyapatite (HA) implant-coating, which is evenly distributed, thin, and quickly resorbed. It is designed to stimulate osseointegration and early implant stability and alleviate longer-term HA-induced third-body polyethylene wear. This study evaluates early cup migration and functional outcomes of cementless porous-coated hemispherical cups with or without BM. Patients and methods — In a patient-blinded, randomized, controlled trial 53 patients at mean 64 years (55–75) with coxarthritis were operated with an Exceed cup (Zimmer Biomet) and Bi-Metric stem (Zimmer Biomet) with porous and BM coating (PBM) or with porous coating alone (P). Follow-ups were performed postoperatively and at 3, 6, 12, and 24 months. Effect measures were cup migration measured with RSA and PROMs. Results — At 6-month follow-up, proximal cup migration in the PBM group (0.09 mm, 95% CI 0.02–0.20) was higher than in the P group (0.25 mm, CI 0.15–0.35). At 1- and 2-year follow-up, cup migration in all 6 degrees of freedom was similar between groups (p > 0.2). From before surgery to 2-year follow-up, Oxford Hip Score (OHS) increased by 17 points (CI 14–20). Hip disability and Osteoarthritis Outcome Score (HOOS) increased in all sub-scores, but was more pronounced for PBM cups compared with P cups in the Symptoms sub-score (p = 0.04). Interpretation — Contrary to expectations, PBM cups had higher early migration than P cups. At 2-year follow-up, migration was similar between groups. There seems to be no early benefit of BM coating on acetabular cups.
title: Optimal Unconventional Monetary Policy in the Face of Shadow Banking
title: MAGKS - Joint Discussion Paper Series in Economics
Creators: name: Kirchner, Philipp
name: Schwanebeck, Benjamin
Publisher: name: Philipps-Universität Marburg
Year: 2017
Subjects: optimal policy
financial intermediation
un- conventional policy
shadow banking
financial frictions
Economics
Wirtschaft

description: Using a DSGE framework, we discuss the optimal design of monetary policy
for an economy where both retail banks and shadow banks serve as financial
intermediaries. We get the following results. During crises times, a standard
Taylor rule fails to reach sufficient stimulus. Direct asset purchases prove to
be the most e¤ective unconventional tool. When maximizing welfare, central
banks should shy away from interventions in the funding process between retail and shadow banks. Liquidity facilities are the welfare-maximizing unconventional policy tool. The effectiveness of unconventional measures increases in the size of the shadow banking sector. However, the optimal response to shocks is sensitive to the resource costs of the implementation which may di¤er across central banks. Hence, optimal unconventional monetary policy is country-specific.
Interferometric observations of warm deuterated methanol in the inner regions of low-mass protostars
Creators: name: Taquet, Vianney
name: Bianchi, Eleonora
name: Codella, Claudio
name: Persson, Magnus V.
name: Ceccarelli, Cecilia
name: Cabrit, Sylvie
name: Jørgensen, Jes K.
name: Kahane, Claudine
name: López-Sepulcre, Ana
name: Neri, Roberto
Publisher: name: arXiv
Year: 2019
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Methanol is a key species in astrochemistry since it is the most abundant organic molecule in the ISM and is thought to be the mother molecule of many complex organic species. Estimating the deuteration of methanol around young protostars is of crucial importance because it highly depends on its formation mechanisms and the physical conditions during its moment of formation. We analyse dozens of transitions from deuterated methanol isotopologues coming from various existing observational datasets from the IRAM-PdBI and ALMA sub-mm interferometers to estimate the methanol deuteration surrounding three low-mass protostars on Solar System scales. A population diagram analysis allows us to derive a [CH$_2$DOH]/[CH$_3$OH] abundance ratio of 3-6 % and a [CH$_3$OD]/[CH$_3$OH] ratio of 0.4-1.6 % in the warm inner protostellar regions. These values are ten times lower than those derived with previous single-dish observations towards these sources but they are 10-100 times higher than the methanol deuteration measured in massive hot cores. Dust temperature maps obtained from Herschel and Planck observations show that massive hot cores are located in warmer molecular clouds than low-mass sources, with temperature differences of $\sim$10 K. Comparison with the predictions of the gas-grain astrochemical model GRAINOBLE shows that such a temperature difference is sufficient to explain the different deuteration observed in low- to high-mass sources, suggesting that the physical conditions of the molecular cloud at the origin of the protostars mostly govern the present observed deuteration of methanol. The methanol deuteration measured in this work is higher by a factor of 5 than the upper limit in methanol deuteration estimated in comet Hale-Bopp, implying that an important reprocessing of the organic material would have occurred in the solar nebula during the formation of the Solar System.
description: 16 pages, 10 figures, accepted for publication in Astronomy & Astrophysics
Statistics of a hydrophobic chain near a hydrophobic boundary
Creators: name: Onder, Pinar
name: Erzan, Ayse
Publisher: name: arXiv
Year: 2002
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: We study the behaviour of a hydrophobic chain near a hydrophobic boundary in two dimensions, using the decorated lattice model of Berkema and Widom [G.T. Barkema and B. Widom, J. Chem. Phys. 113, 2349 (2000)] to obtain effective, temperature dependent intrachain and chain-boundary interactions. We use these interactions to construct two model hamiltonians which can be solved exactly. Our results compare favorably with preliminary Monte Carlo computations, using the same effective interactions. At relatively low temperatures and at high temperatures, we find that the chain is randomly configured in the ambient water, and detached from the wall, whereas at intermediate temperatures it adsorbs onto the wall in a stretched or partially folded state, again depending upon the temperature, and the energy of solvation.
description: 6 pages text, 11 figures
Unemployment and its problems in the Grodno Region
Creators: name: Tachytskaya, Katsiaryna
name: Tachytskaya, Katsiaryna
Publisher: name: Unknown
Year: 2007
Subjects: subject: Agribusiness
subject: Labor and Human Capital
subject: Political Economy
subject: unemployment
subject: employment

description: Article is devoted to studying of unemployment as a negative social and economic phenomenon in the life of a society. As the growth of the given parameter conducts to the shortage of produce. The structure of the unemployed according to the sex both in Grodno region, and across Belarus specifies prevalence of ‘female’ unemployment. A problem there is employment of youth. The disturbing tendency is traced at studying the structure of the age of the unemployed: the greatest share of the unemployed falls at the most productive age of 20-29 and 30-49 years. In the small regional centers the rate of unemployment is higher than in the large cities. This is connected with an absence of workplaces, backwardness of the real sector of economy, a weak level of development of social services. Therefore the state policy of employment aspires to provide equal opportunities to all physically fit citizens of Belarus, gives social guarantees and indemnifications to the unemployed, etc.
A 3D radiation-hydrodynamic AGB binary model
Creators: name: Chen, Zhuo
name: Ivanova, Natalia
name: Carroll-Nellenback, Jonathan
Publisher: name: arXiv
Year: 2019
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: The origin of chemically peculiar stars and non-zero eccentricity in evolved close binaries have been long-standing problems in binary stellar evolution. Answers to these questions may trace back to an intense mass transfer during AGB binary phase. In this work, we use AstroBEAR to solve the 3D radiation-hydrodynamic equations and calculate the mass transfer rate in asymptotic-giant-branch (AGB) binaries that undergo the wind-Roche-lobe-overflow or Bondi-Hoyle-Lyttleton (BHL) accretion. MESA produces the density and temperature of the boundary condition of the AGB star. To improve the resolution of the dynamics of a circumbinary disk, we implement an azimuthal angle-dependent 3D radiation transfer. We consider optically thin cooling and obtain the number density of the coolants by solving Saha equations. One of the goals of this work is to illustrate the transition from the wind-Roche-lobe-overflow to BHL accretion. Both circumbinary disks and spiral structure outflows can appear in the simulations. Circumbinary disks may form when the optical thickness in the equatorial region increases. The increase of the optical thickness is due to the deflected wind. The resulting mass transfer efficiency in our models is up to a factor of 8 times higher than what the standard BHL accretion scenario predicts, and the outflow gains up to 91% of its initial angular momentum when it reaches 1.3 binary separations. Consequently, some AGB binaries may undergo orbit shrinkage, and some will expand. The high mass transfer efficiency is closely related to the presence of the circumbinary disks.
description: 21 pages, 8 figures, and 6 tables
The Distribution of Direct Payments of CAP to producers amongst EU Member States
Creators: name: Zawojska, Aldona
name: Zawojska, Aldona
Publisher: name: Unknown
Year: 2007
Subjects: subject: Agribusiness
subject: Agricultural and Food Policy
subject: Agricultural Finance
subject: Community/Rural/Urban Development
subject: International Relations/Trade
subject: direct payments
subject: common agricultural policy
subject: distribution
subject: producers
subject: European Union

description: The paper attempts to contribute to the discussion of the agricultural support distribution in the framework of Common Agricultural Policy of the European Union. Author used European Commission statistics of direct payments to explore the distribution patterns across farm holdings in EU Member States. The results show that distribution of direct payments is skewed towards a small number of very large holdings in a few Member States. Across the whole EU, 85% of direct payments funded from common budget went to the largest 19% of their recipients in 2005. In Poland, income from direct payments was also unfairly distributed.
The Pairwise Velocity Distribution Function of Galaxies in the LCRS, 2dF, and SDSS Redshift Surveys
Creators: name: Landy, Stephen D.
Publisher: name: arXiv
Year: 2002
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: A comparison of the galaxy pairwise velocity distribution functions determined from the three largest publicly available galaxy redshift surveys is presented. This is the first direct comparison of this function across these surveys using an identical method. It is found that the two r-band selected surveys, the LCRS (Las Campanas Redshift Survey) and the SDSS (Sloan Digital Sky Survey), are in excellent agreement with 363 +/- 44 km/sec and 357 +/- 17 km/sec respectively. The b-band selected 2dF survey gives slightly lower results with 331 +/- 19 km/sec. This difference is expected given the sampling biases in the different surveys although it is not highly significant. These results and analysis of subsets of data indicate that the method is stable to singular features in each survey such as the prevalence of rich clusters. The technique utilizes a Fourier-space deconvolution of the redshift-space distortions in the correlation function in the sigma(rp)-pi basis, which has been previously described. This method returns the entire distribution function rather than just the second moment. In all cases the distribution function is well-characterized by an exponential.
description: Accepted to ApJL; twelve pages including one figure, V2 minor changes
Variability of massive stars in M31 from the Palomar Transient Factory
Creators: name: Soraisam, Monika D.
name: Bildsten, Lars
name: Drout, Maria R.
name: Prince, Thomas A.
name: Kupfer, Thomas
name: Masci, Frank
name: Laher, Russ R.
name: Kulkarni, Shrinivas R.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Using data from the (intermediate) Palomar Transient Factory (iPTF), we characterize the time variability of ~500 massive stars in M31. Our sample is those stars which are spectrally typed by Massey and collaborators, including Luminous Blue Variables, Wolf-Rayets, and warm and cool supergiants. We use the high-cadence, long-baseline (~5 years) data from the iPTF survey, coupled with data-processing tools that model complex features in the light curves. We find widespread photometric (R-band) variability in the upper Hertzsprung Russell diagram (or CMD) with an increasing prevalence of variability with later spectral types. Red stars (V-I>1.5) exhibit larger amplitude fluctuations than their bluer counterparts. We extract a characteristic variability timescale, tch, via wavelet transformations that are sensitive to both continuous and localized fluctuations. Cool supergiants are characterized by longer timescales (>100 days) than the hotter stars. The latter have typical timescales of tens of days but cover a wider range, from our resolution limit of a few days to longer than 100 days timescales. Using a 60-night block of data straddling two nights with a cadence of around 2 minutes, we extracted tch in the range 0.1--10 days with amplitudes of a few percent for 13 stars. Though there is broad agreement between the observed variability characteristics in the different parts of the upper CMD with theoretical predictions, detailed comparison requires models with a more comprehensive treatment of the various physical processes operating in these stars such as pulsation, subsurface convection, and the effect of binary companions.
description: 20 pages + Appendix, accepted to ApJ
Spin-sensitive probes of triplet excitons in organic semiconductors
Creators: name: Weiss, Leah Rachel
Publisher: name: Apollo - University of Cambridge Repository
Year: 2019
Subjects: Optoelectronics
Electron Spin Resonance
Magnetic Field Effects
Singlet Fission
Photophysics

description: Spin interactions play a key role in the function of molecular materials from naturally occurring biological complexes to synthetic materials for light-harvesting and light-emission. This thesis investigates the spin interactions of spin-1 triplet excitons formed by singlet fission. Singlet fission produces two triplet excitons from one light-induced singlet state and holds promise to enable solar energy generation beyond traditional efficiency limits. As the lifetime of triplet pairs depends sensitively on their spin degree of freedom, in this thesis we deploy spin-sensitive techniques to understand the interactions and evolution of triplet pairs. After introducing the relevant theoretical and experimental background underlying singlet fission and the role of spin, we describe the first observation of strongly exchange coupled, high-spin triplet-pair states ($S=2$) in a solid-state organic semiconductor and show that the singlet fission process allows for the formation of long-lived, strongly coupled spin-two states. We then describe the development and use of photoluminescence-detected avoided level-crossings in applied magnetic fields to quantify the strength of exchange coupling and identify specific optical signatures of exchange-coupled triplet pairs. Using high magnetic fields ($\leq\mbox{60 T}$) we isolate and measure the exchange coupling and optical signatures of multiple distinct triplet pairs in the same material. Finally, we probe the mechanisms of formation and decay of spin polarization from triplet pair states using pulsed spin resonance. The measured dynamics are consistent with polarization driven by fluctuations in exchange coupling between pairs and spin-orbit mediated decay of triplet excitons to the ground state. The combined measurements of the spin parameters and polarization dynamics of triplet pairs from ns to ms timescales provides a quantitative picture of the spin states generated by singlet fission.
An efficient, open source, iterative ISPH scheme
Creators: name: Muta, Abhinav
name: Ramachandran, Prabhu
name: Negi, Pawan
Publisher: name: arXiv
Year: 2019
Subjects: subject: Numerical Analysis (math.NA)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: In this paper a simple, robust, and general purpose approach to implement the Incompressible Smoothed Particle Hydrodynamics (ISPH) method is proposed. This approach is well suited for implementation on CPUs and GPUs. The method is matrix-free and uses an iterative formulation to setup and solve the pressure-Poisson equation. A novel approach is used to ensure homogeneous particle distributions and improved boundary conditions. This formulation enables the use of solid wall boundary conditions from the weakly-compressible SPH schemes. The method is fast and runs on GPUs without the need for complex integration with sparse linear solvers. We show that this approach is sufficiently accurate and yet efficient compared to other approaches. Several benchmark problems that illustrate the robustness, performance, and wide range of applicability of the new scheme are demonstrated. An open source implementation is provided and the manuscript is fully reproducible.
description: Updated based on reviewer comments and several improvements
Large time behavior for vortex evolution in the half-plane
Creators: name: Iftimie, D.
name: Filho, M. C. Lopes
name: Lopes, H. J. Nussenzveig
Publisher: name: arXiv
Year: 2002
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: In this article we study the long-time behavior of incompressible ideal flow in a half plane from the point of view of vortex scattering. Our main result is that certain asymptotic states for half-plane vortex dynamics decompose naturally into a nonlinear superposition of soliton-like states. Our approach is to combine techniques developed in the study of vortex confinement with weak convergence tools in order to study the asymptotic behavior of a self-similar rescaling of a solution of the incompressible 2D Euler equations on a half plane with compactly supported, nonnegative initial vorticity.
description: 30 pages, no figures
Latigammaropsis Myers 2009, gen. nov.
Creators: name: Myers, Alan A.
Publisher: name: Zenodo
Year: 2009
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Malacostraca
Amphipoda
Photidae
Latigammaropsis

description: Latigammaropsis gen. nov.
 Type species. Gammaropsis atlantica Stebbing, 1888.
 Etymology. From the Latin latus = broad (relating to the relatively broad uropod 3 peduncle) as a prefix to Gammaropsis, its close relative.
 Diagnosis. Gammaropsis sensu lato with head anterodistal margin strongly recessed; lateral cephalic lobes rounded; labrum lacking acute epistome; mandible palp article 3 spatulate, widest subdistally; coxae 1– 2 without serrations on distal margin; pleon segments lacking spines; uropod 3 peduncle short and broad, rami short and stout; outer ramus blunt-ended with a small second article bearing two fine setae, bordered on distal end of first segment by one or more robust setae; inner ramus subequal with or shorter than outer ramus, narrowing distally, with a single small robust seta inserted at its tip, lateral margins naked or with one or two robust setae.
 Included species. Latigammaropsis abbotti (J.L. Barnard, 1965), L. afra (Stebbing, 1888), L. athenae sp. nov., L. atlantica (Stebbing, 1888), L. christenseni (Myers, 1995), L. dionysus sp. nov., L. gemina (Myers, 1995), L. grandimana (Ledoyer, 1978), L. hermes sp. nov., L. hestia sp. nov., L. kaumaka (J.L. Barnard, 1970), L. pacifica (Schellenberg, 1938), L. pali (J.L. Barnard,1970), L. photisimilis (Ruffo,1969), L. planodentata (Myers, 1995), L. togoensis (Schellenberg, 1925).
 Remarks. This genus defines the ‘ atlantica’ group of Gammaropsis sensu lato. This genus is found in all tropical seas. The shape of uropod 3 is diagnostic.
description: Published as part of Myers, Alan A., 2009, Photidae *, pp. 771-799 in Zootaxa 2260 (1) on page 777, DOI: 10.11646/zootaxa.2260.1.43, http://zenodo.org/record/5306907
Grüneisen parameters for Lieb-Liniger and Yang-Gaudin models
Creators: name: Peng, Li
name: Yu, Yicong
name: Guan, Xi-Wen
Publisher: name: arXiv
Year: 2019
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: Using the Bethe ansatz solution, we analytically study expansionary, magnetic and interacting Grüneisen parameters (GPs) for one-dimensional (1D) Lieb-Liniger and Yang-Gaudin models. These different GPs elegantly quantify the dependences of characteristic energy scales of these quantum gases on the volume, the magnetic field and the interaction strength, revealing the caloric effects resulted from the variations of these potentials. The obtained GPs further confirm an identity which is incurred by the symmetry of the thermal potential. We also present universal scaling behavior of these GPs in the vicinities of the quantum critical points driven by different potentials. The divergence of the GPs not only provides an experimental identification of non-Fermi liquid nature at quantum criticality but also elegantly determine low temperature phases of the quantum gases. Moreover, the pairing and depairing features in the 1D attractive Fermi gases can be captured by the magnetic and interacting GPs, facilitating experimental observation of quantum phase transitions. Our results open to further study the interaction- and magnetic-field-driven quantum refrigeration and quantum heat engine in quantum gases of ultracold atoms.
description: 6 figures, 13 pages
Aryballe corinthien
Creators: name: SAM
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2016

description: Provenance: Corinthe
description: date: VIe, 1ère moitié
The Contributions of UNCLOS Dispute Settlement Bodies to the Development of the Law of the Sea
Creators: name: Nguyen, Lan Ngoc
Publisher: name: Apollo - University of Cambridge Repository
Year: 2019
Subjects: Law of the sea
UNCLOS
ITLOS
Annex VII arbitral tribunal
Part XV UNCLOS
compulsory jurisdiction
protection of marine environment
outer continental shelf
fisheries
international courts and tribunals
international dispute settlement

description: This thesis seeks to systematically examine the contributions made by the dispute settlement bodies established under the United Nations Convention on the Law of the Sea (UNCLOS) to the development of the law of the sea. The two main research questions to be answered are: (i) what kind of contribution have UNCLOS dispute settlement bodies made to the development of the law of the sea? and (ii) what are the factors that impact the performance of UNCLOS dispute settlement bodies in developing the law of the sea? To that end, Chapter 1 provides a working definition for the concept of ‘judicial development of international law’ in order to establish a framework for an assessment of the contributions of UNCLOS tribunals. Based on this working definition, Chapters 2, 3 and 4 examine the significance of UNCLOS tribunals’ decisions in the development of three main areas of the law of the sea, respectively the law on fisheries, the law on the outer continental shelf and the law on marine environmental protection. Based on the findings of these chapters, Chapter 5 analyses the factors that help explain the contributions of UNCLOS tribunals to the law of the sea as identified in the preceding chapters. These factors include: (i) the jurisdictional scope of UNCLOS tribunals, (ii) the institutional design of UNCLOS, (iii) the interpretative method employed by UNCLOS tribunals in deciding their cases and (iv) the perception that UNCLOS tribunals hold regarding their roles. Chapter 6 concludes by taking stock of the contribution of UNCLOS tribunal in these areas and offering some final observations on the role of UNCLOS tribunals in the development of the law of the sea.
The impact of women's conversational style on ideological and socio-cultural stability in Toni Morrison's Sula.pdf
Creators: name: Ghevolor, Asa
Publisher: name: figshare
Year: 2022
Subjects: subject: Gender studies
subject: Linguistics
subject: FOS: Languages and literature
subject: Literature

description: The paper entitled "The impact of women's conversational style on ideological and socio-cultural stability in Toni Morrison's Sula examines how women's talk-style influences both ideological and socio-cultural stability in the text. The difference approach to language and gender studies which proposes that women's language is polite, cooperative and supportive of their interlocutors as well as socially functional in maintaining unity and solidarity amongst women as a social group is used as a major theoretical framework for the study while conversational analysis is used as analytical tool to examine women's talk-style in order to determine whether these propositions abound or not and their implications on socio-cultural feminist ideological preoccupation and stability. The paper reveals that each woman has her individual talk-style which translates to her individual feminist ideology and which has either a positive or a negative impact on feminist ideological and socio-cultural stability amongst women groups. The paper further reveals that women's talk-styles that maintain socio-cultural feminist ideology are considered as having positive impacts on socio-cultural stability and are therefore celebrated while those that disrupt socio-cultural stability are considered as having negative impacts and are therefore rejected. The paper concludes that Toni Morrison in Sula has been able to use the black female voice to stabilize socio-culturally approved ways for women in African-American society while at the same time being intolerant to deviant feminist ideologies that might disrupt their own feminist socio-cultural stability.
Decoherence in a classically chaotic quantum system: entropy production and quantum--classical correspondence
Creators: name: Monteoliva, Diana
name: Paz, Juan Pablo
Publisher: name: arXiv
Year: 2001
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We study the decoherence process for an open quantum system which is classically chaotic (a quartic double well with harmonic driving coupled to a sea of harmonic oscillators). We analyze the time dependence of the rate of entropy production showing that it has two relevant regimes: For short times it is proportional to the diffusion coefficient (fixed by the system--environment coupling strength). For longer times (but before equilibration) it is fixed by dynamical properties of the system (and is related to the Lyapunov exponent). The nature of the transition time between both regimes is investigated and the issue of quantum to classical correspondence is addressed. Finally, the impact of the interaction with the environment on coherent tunneling is analyzed.
description: 14 pages, 12 figures (color figures in low resolution)
Acetylenic sesquiterpenoids from cultures of the basidiomycete Stereum cf. hirsutum BCC 26597
Creators: name: Isaka, Masahiko
name: Arunrat Yangchum
name: Rattaket Choeyklin
name: Sakaokan Anaphon
Publisher: name: Taylor & Francis
Year: 2019
Subjects: subject: Biophysics
subject: Biochemistry
subject: Space Science
subject: 29999 Physical Sciences not elsewhere classified
subject: FOS: Physical sciences
subject: Microbiology
subject: FOS: Biological sciences
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: Inorganic Chemistry
subject: Science Policy
subject: Hematology
subject: Plant Biology

description: A new acetylenic sesquiterpenoid, stereyne A (1), and its acetonide derivative, stereyne B (2), were isolated from cultures of the basidiomycete Stereum cf. hirsutum BCC 26597. The structures were elucidated by spectroscopic analysis and a chemical correlation. Their absolute configurations were determined by application of the modified Mosher’s method. They represent new structural type of sesquiterpenoids from Stereum.
The Labour of Love Songs: Voicing Intimacy in Somaliland
Creators: name: Woolner, Christina
Publisher: name: Apollo - University of Cambridge Repository
Year: 2018
Subjects: Somaliland
love songs
anthropology of popular culture
Somali oral poetry
anthropology of texts
voice
intimacy
social anthropology
ethnomusicology
popular song

description: This dissertation is about the work of love songs in Hargeysa, Somaliland. In a setting where music and expressions of love are conspicuously absent from public soundscapes, I explore the lives and labour of a genre as it moves and is moved across time and space, the singing and speaking voices that animate these songs, and the entanglement of love songs in the mediation of intimacy and the shaping of contested post-war soundscapes. What, I ask, is a love song? In a setting marked by war, where music-making and expressions of love are contested, what do love songs do? And how do they do what they do? In answering these questions, I take love songs in motion as my primary ethnographic object and investigate the “labour” of love songs in two senses: the intimate human labour by which love songs are made, circulated, heard, performed and put to assorted uses, and the social-aesthetic-affective labour that a genre itself performs. Based on eighteen months of field-research with poets, musicians, singers, music-lovers and love-suffering audiences in Hargeysa, I track love songs through various stages of their multi-faceted lives: as they first come into the world through the collaboration of a poet and his muse, a musician and a singer; as they circulate and are re-animated alongside stories of singers and stories of encounters; as they are re-figured by the ears and voices of attentive listeners; as their sounding is learned by musicians; and as their live performance is negotiated and received in contested urban terrain. I show the primary labour of love songs to be the distillation, performance and creation of intimate social relations: intimate relations predicated on “dareen-wadaag” (“feeling-sharing”) that transcend everyday cleavages and prohibitions, and that have the power to shape both individuals’ personal intimate lives and the socio-political worlds in which songs move and do their work. I argue that love songs’ ability to distill and open space for intimacy rests on an ideology of voice that figures the voice as a deeply personal mode of self-expression and the simultaneously multi-vocal practices of voicing by which love songs are animated. In other words, the “voice” is made – and made intimate – by its multi-faceted multi-vocal sociality. In so doing, this dissertation contributes to understandings of the workings and power of popular culture in Africa and beyond, recent anthropological efforts to hold together the sonic and social dynamics of the “voice”, and broader anthropological conversations about the mediated, multi-vocal making of persons and social worlds.
description: Social Sciences and Humanities Research Council (Canada) Cambridge International Trust (Smuts Memorial Fund)
title: Natural resource rents, autocracy and the composition of government spending
title: MAGKS - Joint Discussion Paper Series in Economics
Creators: name: Endrikat, Morten
Publisher: name: Philipps-Universität Marburg
Year: 2017
Subjects: Economics
Wirtschaft
Natural Resources
government spending
institutions
resource curse

description: This paper empirically analyzes the influence of rents from natural resources on the composition of government spending and investigates whether the relationship differs between democracies and autocracies. Both panel data and instrumental variable regressions suggest that there is a negative joint effect of autocracy and natural resource dependency on education spending. Moreover, there is slight evidence in the results of a positive joint effect on spending for social protection, while other components of government spending do not seem to be influenced. In particular, the results do not suggest that autocratic regimes in resource-dependent countries spend relatively more on military.
Land suitability analysis for surface irrigation in Humbo woreda, wolaita zone, Southern Ethiopia
Creators: name: Labiso, Tadele Tesfaye
name: Yagaso, Zewdu Sufare
Publisher: name: EQA - International Journal of Environmental Quality
Year: 2021

description: This study was initiated with the objective of analyzing land suitability for surface irrigation in Humbo woreda, Southern Ethiopia. For the suitability analysis of surface irrigation, soil type, slope, land cover, and distance from water supply were considered. The suitability factors data such as soil data was obtained from Ethio-soil, slope was derived from DEM-20 meter resolution, land use/cover was classified from satellite image of 2019 (Landsat 7 ETM+), and distance from the River was obtained from Ethio-River map. For each of the criteria suitability map was developed. Slope was classified as 0-2%, 2-5%, 5-8% and 8-15% as highly suitable, moderately, suitable, marginally suitable and not suitable respectively. LULC was classified by unsupervised classification. For the weighted over lay analysis as the most limiting factor slope was given (40%), land use and River proximity given equal weights (30%). The weighted overlay analysis gave irrigable area of 1.22% highly, 50.87% moderately, 45.77% marginally suitable for surface irrigation but 2.13% is not suitable. Thus, in Humbo woreda small area of the land is highly suitable however; more than half of the area is moderately suitable for surface irrigation. Thus, farmers and the government should invest in those suitable areas for surface irrigation.
description: EQA - International Journal of Environmental Quality, Vol. 44 (2021)
A Benchmark Set of Highly-efficient CUDA and OpenCL Kernels and its Dynamic Autotuning with Kernel Tuning Toolkit
Creators: name: Petrovič, Filip
name: Střelák, David
name: Hozzová, Jana
name: Oľha, Jaroslav
name: Trembecký, Richard
name: Benkner, Siegfried
name: Filipovič, Jiří
Publisher: name: arXiv
Year: 2019
Subjects: subject: Distributed, Parallel, and Cluster Computing (cs.DC)
subject: FOS: Computer and information sciences

description: Autotuning of performance-relevant source-code parameters allows to automatically tune applications without hard coding optimizations and thus helps with keeping the performance portable. In this paper, we introduce a benchmark set of ten autotunable kernels for important computational problems implemented in OpenCL or CUDA. Using our Kernel Tuning Toolkit, we show that with autotuning most of the kernels reach near-peak performance on various GPUs and outperform baseline implementations on CPUs and Xeon Phis. Our evaluation also demonstrates that autotuning is key to performance portability. In addition to offline tuning, we also introduce dynamic autotuning of code optimization parameters during application runtime. With dynamic tuning, the Kernel Tuning Toolkit enables applications to re-tune performance-critical kernels at runtime whenever needed, for example, when input data changes. Although it is generally believed that autotuning spaces tend to be too large to be searched during application runtime, we show that it is not necessarily the case when tuning spaces are designed rationally. Many of our kernels reach near peak-performance with moderately sized tuning spaces that can be searched at runtime with acceptable overhead. Finally we demonstrate, how dynamic performance tuning can be integrated into a real-world application from cryo-electron microscopy domain.
Artificial Intelligence Assisted Inversion (AIAI) of Synthetic Type Ia Supernova Spectra
Creators: name: Chen, Xingzhuo
name: Hu, Lei
name: Wang, Lifan
Publisher: name: arXiv
Year: 2019
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We generate $\sim$ 100,000 model spectra of Type Ia Supernovae (SNIa) to form a spectral library for the purpose of building an Artificial Intelligence Assisted Inversion (AIAI) algorithm for theoretical models. As a first attempt, we restrict our studies to time around $B$-band maximum and compute theoretical spectra with a broad spectral wavelength coverage from 2000 $-$ 10000 ${\rm Å}$ using the code TARDIS. Based on the library of theoretically calculated spectra, we construct the AIAI algorithm with a Multi-Residual Convolutional Neural Network (MRNN) to retrieve the contributions of different ionic species to the heavily blended spectral profiles of the theoretical spectra. The AIAI is found to be very powerful in distinguishing spectral patterns due to coupled atomic transitions and has the capacity of quantitatively measuring the contributions from different ionic species. By applying the AIAI algorithm to a set of well observed SNIa spectra, we demonstrate that the model can yield powerful constraints on the chemical structures of these SNIa. Using the chemical structures deduced from AIAI, we successfully reconstructed the observed data, thus confirming the validity of the method. We show that the light curve decline rate of SNIa is correlated with the amount of $^{56}$Ni above the photosphere in the ejecta. We detect a clear decrease of $^{56}$Ni mass with time that can be attributed to its radioactive decay. Our Code and model spectra are made available on the website \href{https://github.com/GeronimoChen/AIAI-Supernova}{https://github.com/GeronimoChen/AIAI-Supernova}.
description: 49 pages, 31 figures
Aspects of Animal Imagery in Petrarch’s 'Rerum Vulgarium Fragmenta'
Creators: name: Morelli, Nicolo
Publisher: name: Apollo - University of Cambridge Repository
Year: 2019
Subjects: Petrarch
poetry
lyric poetry
Italian studies
medieval literature
animals
animal imagery
Dante
Arnaut Daniel
Cavalcanti
Cino da Pistoia

description: This thesis examines the role of animal imagery in Petrarch’s 'Rerum vulgarium fragmenta' (Rvf) as a means of elucidating his poetics in conversation with his predecessors. To achieve this aim, the present study compares and contrasts Petrarch’s poetry with that of the poets quoted in Rvf 70, namely Arnaut Daniel, Guido Cavalcanti, Dante Alighieri and Cino da Pistoia. My research sheds light on the way in which Petrarch draws on and diverges from his precursors as he establishes his poetic language. The comparison between Petrarch and one or more of his predecessors poses three areas of enquiry central to my research: Petrarch’s reuse of traditional animal images, such as those in troubadour poetry; the question of allegory in the Rvf; and the language and communication strategies which characterise Petrarch’s poetic exchanges. Chapter 1 introduces a theoretical framework, based on the sources in Petrarch’s possession, which discusses and reviews the implications, in medieval culture, of the notion of animality in relation to and in the representation of human passions. Chapter 2 considers Petrarch’s potential engagement with the repertoire of animal imagery in the tradition of Occitan poetry. It examines the set of zoological images of bestiary derivation that Petrarch shares with the troubadours, specifically focusing on Petrarch’s debt to Arnaut Daniel. Chapter 3 explores the role of allegory in Petrarch’s animal imagery as compared with Dante’s poetry. Chapter 4 considers how the employment of animal images varies between the poems without apparent correspondents and those with specific recipients. The first part of the chapter is concerned with the lyrics of Guido Cavalcanti and Cino da Pistoia, while the second part analyses animal vocabulary in the Rvf and in the poetic exchanges that Petrarch left uncollected as 'estravaganti'.
description: This research has been generously funded by the Arts and Humanities Research Council (under grant number 1503145), the School of Arts and Humanities, and Pembroke College, University of Cambridge.
Measurement-induced steering of quantum systems
Creators: name: Roy, Sthitadhi
name: Chalker, J. T.
name: Gornyi, I. V.
name: Gefen, Yuval
Publisher: name: arXiv
Year: 2019
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: We set out a general protocol for steering the state of a quantum system from an arbitrary initial state towards a chosen target state by coupling it to auxiliary quantum degrees of freedom. The protocol requires multiple repetitions of an elementary step: during each step the system evolves for a fixed time while coupled to auxiliary degrees of freedom (which we term 'detector qubits') that have been prepared in a specified initial state. The detectors are discarded at the end of the step, or equivalently, their state is determined by a projective measurement with an unbiased average over all outcomes. The steering harnesses back-action of the detector qubits on the system, arising from entanglement generated during the coupled evolution. We establish principles for the design of the system-detector coupling that ensure steering of a desired form. We illustrate our general ideas using both few-body examples (including a pair of spins-1/2 steered to the singlet state) and a many-body example (a spin-1 chain steered to the Affleck-Kennedy-Lieb-Tasaki state). We study the continuous time limit in our approach and discuss similarities to (and differences from) drive-and-dissipation protocols for quantum state engineering. Our protocols are amenable to implementations using present-day technology. Obvious extensions of our analysis include engineering of other many-body phases in one and higher spatial dimensions, adiabatic manipulations of the target states, and the incorporation of active error correction steps.
description: 23 pages, 8 figures. Extended discussion on many-body systems and experimental realisations, and updated references
title: Explaining Central Bank Trust in an Inflation Targeting Country: The Case of the Reserve Bank of New Zealand
title: MAGKS - Joint Discussion Paper Series in Economics
Creators: name: Hayo, Bernd
name: Neumeier, Florian
Publisher: name: Philipps-Universität Marburg
Year: 2017
Subjects: Survey
Public Attitudes
Central Bank Trust
Reserve Bank of New Zealand, Monetary Policy
Economics
Wirtschaft

description: Employing data from a representative population survey conducted in New Zealand in 2016, this paper examines factors that influence, or are at least associated with, public trust in the Reserve Bank of New Zealand (RBNZ). The large number of specifically designed questions allows studying the relationship between six dimensions and RBNZ trust: (i) economic situation, (ii) monetary policy knowledge, (iii) nonspecific trust, (iv) interest and information search, (v) politicians and government, and (vi) socio-demographic indicators. Using ordered logit models, we find that at least one indicator from each of these six dimensions has a statistically significant conditional correlation with individuals’ trust in RBNZ. Satisfaction with own financial situation, objective knowledge about the RBNZ’s main policy objective, responsibility for interest rate setting, subjective knowledge about inflation, trust in government institutions, desire to be informed about RBNZ, age, and full-time selfemployment have a positive relationship with RBNZ trust. The reverse is found for respondents who do not keep up with RBNZ and believe that politicians are long-term oriented. In terms of economic relevance, institutional trust has the largest single impact on RBNZ trust and the subjective and objective knowledge indicators show a strong combined influence.
Spectral analysis of 35 GRBs/XRFs observed with HETE-2/FREGATE
Creators: name: Barraud, C.
name: Olive, J-F.
name: Lestrade, J. P.
name: Atteia, J-L.
name: Hurley, K.
name: Ricker, G.
name: Lamb, D. Q.
name: Kawai, N.
name: Boer, M.
name: Dezalay, J-P.
name: Pizzichini, G.
name: Vanderspek, R.
name: Crew, G.
name: Doty, J.
name: Monelly, G.
name: Villasenor, J.
name: Butler, N.
name: Levine, A.
name: Yoshida, A.
name: Shirasaki, Y.
name: Sakamoto, T.
name: Tamagawa, T.
name: Torii, K.
name: Matsuoka, M.
name: Fenimore, E. E.
name: Galassi, M.
name: Tavenner, T.
name: Donaghy, T. Q.
name: Graziani, C.
name: Jernigan, J. G.
Publisher: name: arXiv
Year: 2002
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present a spectral analysis of 35 GRBs detected with the HETE-2 gamma-ray detectors (the FREGATE instrument) in the energy range 7-400 keV. The GRB sample analyzed is made of GRBs localized with the Wide Field X-ray Monitor onboard HETE-2 or with the GRB Interplanetary Network. We derive the spectral parameters of the time-integrated spectra, and present the distribution of the low-energy photon index, alpha, and of the peak energy, e_peak . We then discuss the existence and nature of the recently discovered X-Ray Flashes and their relationship with classical GRBs.
description: 14 pages, 43 figures, accepted for publication in Astronomy and Astrophysics