cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
K*Sigma photoproduction off the proton target with baryon resonances
Creators: name: Kim, Sang-Ho
name: Nam, Seung-il
name: Hosaka, Atsushi
name: Kim, Hyun-Chul
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We investigate the photoproduction of K*0Sigma+ and K*+Sigma0 off the proton target, employing the effective Lagrangian approach at the tree-level Born approximation. In addition to the (s, t, u)-channel Born diagrams, we take into account various baryon-resonance contributions such as F15(2000), D13(2080), G17(2190), D15(2200), F35(2000), G37(2200), F37(2390), and Sigma*(1385, 3/2+) in a fully covariant manner. We present the numerical results for the energy and angular dependences for the cross sections in comparison to available experimental data. The single-polarization observables, i.e. the photon-beam, recoil and target baryon polarization asymmetries are computed as well for future experiments. We observe from the numerical results that the resonance contributions play a minor role in producing the strength of the cross sections, being different from the K*Lambda photoproduction. In contrast, it turns out that the Delta(1232)-pole contribution and strange-meson exchanges in the t-channel dominate the scattering process. On the other hand, the higher resonances influence the polarization observables such as the recoil and target asymmetries.
description: 15 pages, 57 figures
p-adic functoriality for inner forms of unitary groups in three variables
Creators: name: Ludwig, Judith
Publisher: name: arXiv
Year: 2012
Subjects: subject: Number Theory (math.NT)
subject: FOS: Mathematics

description: We prove p-adic functoriality for inner forms of unitary groups in three variables by establishing the existence of morphisms between eigenvarieties that extend the classical Langlands functoriality.
description: 8 pages. Final version
Conformally rescaled spacetimes and Hawking radiation
Creators: name: Nielsen, Alex B.
name: Firouzjaee, J. T.
Publisher: name: arXiv
Year: 2012
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We study various derivations of Hawking radiation in conformally rescaled metrics. We focus on two important properties, the location of the horizon under a conformal transformation and its associated temperature. We find that the production of Hawking radiation cannot be associated in all cases to the trapping horizon because its location is not invariant under a conformal transformation. We also find evidence that the temperature of the Hawking radiation should transform simply under a conformal transformation, being invariant for asymptotic observers in the limit that the conformal transformation factor is unity at their location.
description: 22 pages, version submitted to journal
Q-boson coherent states and para-Grassmann variables for multi-particle states
Creators: name: Ramirez, Romina A.
name: Rossini, Gerardo L.
name: Cabra, Daniel C.
name: Moreno, Enrique F.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Mathematical Physics (math-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We describe coherent states and associated generalized Grassmann variables for a system of $m$ independent $q$-boson modes. A resolution of unity in terms of generalized Berezin integrals leads to generalized Grassmann symbolic calculus. Formulae for operator traces are given and the thermodynamic partition function for a system of $q$-boson oscillators is discussed.
description: Original references added; 19 pages, 3 figures
The Power of Creative Supervision: Co-Regulating Insight and Practice
Creators: name: Steadman, Emma
Publisher: name: Leeds Beckett University
Year: 2023

description: Within the UK, supervision attendance is mandatory for practising members of counselling and psychotherapy professional bodies. Supervision is a core element of the regulation of the counselling and psychotherapy profession. A significant amount of time and money is invested in supervision attendance. Whilst discourses in the field assign high status to supervision practice, there is a paucity of clarity in existing research regarding aims and impacts. This is amplified within Play Therapy supervision as the literature identifies a significant gap in empirical inquiry in this field. This thesis examines potential meanings and practice implications of play therapists’ experiences of supervision. It includes the perspectives of students, qualified play therapists, supervisors, and supervisors of supervisors (metasupervisors) who work in UK statutory, voluntary, and private sectors. The study involves members of the British Association of Play Therapists (BAPT), Play Therapy United Kingdom (PTUK), and the British Association for Counselling and Psychotherapy (BACP). Constructivist grounded theory method has been used to examine patterns and processes for potential application to the development of Play Therapy supervision in the UK. The main contribution of this study is the creation of a substantive grounded theory which identifies processes and corresponding impacts of Play Therapy supervision in a UK context. Potential meanings for Play Therapy supervision development are identified through analysis of supervisees’ creative representations and interviews. This theory affirms current rhetoric for mandated, regular Play Therapy supervision. However, it also confirms arguments that inadequate and harmful supervision are under-acknowledged and under-addressed. Power relations processes are identified as significant aspects of supervisory relationship facilitating or blocking supervision. The claim that creative exploration within a co-regulated, co-created supervisory milieu and relationship is time- and cost-effective in supervisor wellbeing and professional development is supported. Recognition of these processes has implications for future research and policies regarding supervision and the regulation of Play Therapy. Key Words: supervision, regulation, play therapy supervision, power relations, creative exploration, co-regulated, co-created, metasupervision
Classification of massive and gapless phases in bilayer graphene
Creators: name: Roy, Bitan
Publisher: name: arXiv
Year: 2012
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We here classify of all the fully gapped \emph{massive} and \emph{gapless} phases in bilayer graphene. The effective low energy theory in bilayer graphene is constructed, and various discrete and continuous symmetries of the non-interacting system is analyzed. Spinless fermions, placed in a quantizing magnetic field is considered. The quantum anomalous Hall insulator is properly defined. Constructing a particle-hole doubled 16 component Nambu-Dirac spinor, we recognize all the possible fully gapped, and the gapless states, which, on the other hand, split the parabolic dispersion into two anisotropic Dirac like conical ones. A thorough symmetry analysis of all the ordered states is performed. Altogether there are 8 insulating and 4 superconducting phases in bilayer graphene, that can lead to fully gapped spectrum. Among the gapped superconductors, \emph{three} are spin-singlet, which include uniform s-wave and two spatially inhomogeneous, translational symmetry breaking Kekule superconductors. The triplet pairing exhibits an f-wave symmetry. Besides the gapped phases, there are 8 semimetallic and 8 gapless superconducting states in total, available for fermions to condense into. We also find novel gapless superconducting states, which break the translational symmetry, dubbed as \emph{gapless-Fulde-Farrell-Larkin-Ovchinikov} superconductors. We also discuss the role of Coulomb interaction, and propose various experimental tools to determine the underlying ordered states.
description: 14 pages; no figure, Published version: Slightly modified Title, Revised abstract, Sharpen terminology, New section on experimental signatures of broken symmetry phases, New references, typos corrected
The critical window for the classical Ramsey-Turán problem
Creators: name: Fox, Jacob
name: Loh, Po-Shen
name: Zhao, Yufei
Publisher: name: arXiv
Year: 2012
Subjects: subject: Combinatorics (math.CO)
subject: FOS: Mathematics
subject: 05C35, 05C55, 05D40

description: The first application of Szemerédi's powerful regularity method was the following celebrated Ramsey-Turán result proved by Szemerédi in 1972: any K_4-free graph on N vertices with independence number o(N) has at most (1/8 + o(1)) N^2 edges. Four years later, Bollobás and Erdős gave a surprising geometric construction, utilizing the isoperimetric inequality for the high dimensional sphere, of a K_4-free graph on N vertices with independence number o(N) and (1/8 - o(1)) N^2 edges. Starting with Bollobás and Erdős in 1976, several problems have been asked on estimating the minimum possible independence number in the critical window, when the number of edges is about N^2 / 8. These problems have received considerable attention and remained one of the main open problems in this area. In this paper, we give nearly best-possible bounds, solving the various open problems concerning this critical window.
description: 34 pages
Bichromatic field generation from double-four-wave mixing in a double-electromagnetically induced transparency system
Creators: name: Liu, Yang
name: Wu, Jing-Hui
name: Ding, Dong-Sheng
name: Shi, Bao-Sen
name: Guo, Guang-Can
Publisher: name: arXiv
Year: 2012
Subjects: subject: Optics (physics.optics)
subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: We demonstrate the double electromagnetically induced transparency (double-EIT) and double four-wave mixing (double-FWM) based on a new scheme of non-degenerate four-wave mixing (FWM) involving five levels of a cold 85Rb atomic ensemble, in which the double-EIT windows are used to transmit the probe field and enhance the third-order nonlinear susceptibility. The phase-matching conditions for both four-wave mixings could be satisfied simultaneously. The frequency of one component of the generated bichromatic field is less than the other by the ground-state hyperfine splitting (3GHz). This specially designed experimental scheme for simultaneously generating different nonlinear wave-mixing processes is expected to find applications in quantum information processing and cross phase modulation. Our results agree well with the theoretical simulation.
description: Accepted by NJP
New Roles For Librarian Of Bosscha Observatory
Creators: name: Sulistialie, Elyani
Publisher: name: Zenodo
Year: 2014
Subjects: Bosscha Observatory, information technology, new roles for librarian

description: Mr. K. A. R Bosscha, a Dutch tea planter and successful businessman, has become a legendary figure in Indonesia for his various concerns to the society: mostly in public health, education, and science. Through his generous support, he materialized  the foundation of a modern astronomical observatory in the tropics in 1920, namely Bosscha Observatory. The site of the observatory was partially donated by Mr. Ursone, an Italian businessman, and is located in Lembang, West Java, which was a good and suitable place for southern hemisphere observation.
In the directorship of Dr. Voute,  Prof. H.G.van de Sande Bakhuijzen, retired  Director of Leiden Observatory, donated his collection of books and journals on astronomy which become the core of the Bosscha Observatory library.The library of Bosscha Observatory was built to support and facilitate research activities of the Indonesian astronomers.
Results of research and references on astronomy from time to time are kept and managed following the development of astronomy itself and related science and technology. Institut Teknologi Bandung (ITB), The Leids Kerkhoven Bosscha Foundation (LKBF), and various national and international institutions have contributed to the development of the  library. Today, information technology development is adopted as well in Bosscha Observatory and shapes new roles for librarian.
Overdamped dynamics of long-range systems on a one-dimensional lattice: Dominance of the mean-field mode and phase transition
Creators: name: Gupta, Shamik
name: Campa, Alessandro
name: Ruffo, Stefano
Publisher: name: arXiv
Year: 2012
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We consider the overdamped dynamics of a paradigmatic long-range system of particles residing on the sites of a one-dimensional lattice, in the presence of thermal noise. The internal degree of freedom of each particle is a periodic variable which is coupled to those of other particles with an attractive XY-like interaction. The coupling strength decays with the interparticle separation $r$ in space as $1/r^α$; ~$0 < α< 1$. We study the dynamics of the model in the continuum limit by considering the Fokker-Planck equation for the evolution of the spatial density of particles. We show that the equation allows a linearly stable stationary state which is always uniform in space, being non-uniform in the internal degrees below a critical temperature $T=1/2$ and uniform above, with a phase transition between the two at $T=1/2$. The state is the same as the equilibrium state of the mean-field version of the model, obtained by considering $α=0$. Our analysis also lets us to compute the growth and decay rates of spatial Fourier modes of density fluctuations. The growth rates compare very well with numerical simulations.
description: 13 pages, 6 figures; v2: revised version, close to the published version
Usage Trends & Analysis: Ebooks And The Springer Book Archive
Creators: name: Cava, Paolo
Publisher: name: Zenodo
Year: 2014
Subjects: Science Publishing

description: Slides by Paola Cava, Springer, on "Usage Trends & Analysis : eBooks and the Springer Book Archive", presented June 20, 2014 during the Publisher Presentations session at LISA VII, Naples, Italy.
The Baryon Acoustic Oscillation Broadband and Broad-beam Array: Design Overview and Sensitivity Forecasts
Creators: name: Pober, Jonathan C.
name: Parsons, Aaron R.
name: DeBoer, David R.
name: McDonald, Patrick
name: McQuinn, Matthew
name: Aguirre, James E.
name: Ali, Zaki
name: Bradley, Richard F.
name: Chang, Tzu-Ching
name: Morales, Miguel F.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: This work describes a new instrument optimized for a detection of the neutral hydrogen 21cm power spectrum between redshifts of 0.5-1.5: the Baryon Acoustic Oscillation Broadband and Broad-beam (BAOBAB) Array. BAOBAB will build on the efforts of a first generation of 21cm experiments which are targeting a detection of the signal from the Epoch of Reionization at z ~ 10. At z ~ 1, the emission from neutral hydrogen in self-shielded overdense halos also presents an accessible signal, since the dominant, synchrotron foreground emission is considerably fainter than at redshift 10. The principle science driver for these observations are Baryon Acoustic Oscillations in the matter power spectrum which have the potential to act as a standard ruler and constrain the nature of dark energy. BAOBAB will fully correlate dual-polarization antenna tiles over the 600-900MHz band with a frequency resolution of 300 kHz and a system temperature of 50K. The number of antennas will grow in staged deployments, and reconfigurations of the array will allow for both traditional imaging and high power spectrum sensitivity operations. We present calculations of the power spectrum sensitivity for various array sizes, with a 35-element array measuring the cosmic neutral hydrogen fraction as a function of redshift, and a 132-element system detecting the BAO features in the power spectrum, yielding a 1.8% error on the z ~ 1 distance scale, and, in turn, significant improvements to constraints on the dark energy equation of state over an unprecedented range of redshifts from ~0.5-1.5.
description: 16 pages, 13 figures, 2 tables, matches version accepted by AJ
title: The influence of hydrography on pelagic fish distribution and communities in a sub-arctic estuary (Lake Melville, Labrador)
Creators: name: Small, Tiffany
Publisher: name: Memorial University of Newfoundland
Year: 2023

description: Estuaries are semi-enclosed bodies of water that are influenced by freshwater runoff and saltwater from neighbouring oceans. Water masses in estuaries can be strongly stratified and are often influenced by geological, hydrological and hydrographical features. The stratification of the water column in estuaries creates important nursery habitats for larvae and juvenile fish populations. The Lake Melville system, a highly stratified sub-arctic estuary in Labrador, spans 2100 km2 and is considered the longest single body of water in Labrador (250 km). By pairing seasonal hydroacoustic surveys conducted in summers 2018-2019 and winters 2019-2020 with ichthyoplankton and gill nets sampling as well as environmental DNA, we test the hypothesis that the strong water stratification prevailing in upper Lake Melville provides a refuge for early life stages of fish. We found that adult pelagic fish occupied the Atlantic waters below the steep pycnocline, while ichthyoplankton aggregated just above and within the pycnocline (as deep as 25 m). Nine species of fish were captured in gill and fyke nets and 53 fish species were detected with environmental DNA. Larvae of Rainbow smelt (Osmerus mordax) were ubiquitous in July and August and represented 100 % of the ichthyoplankton assemblage during these months. No fish larvae were caught in winter (February). As seen in other estuaries, we conclude that the layer of freshwater provides a refuge for Rainbow smelt larvae, a key forage species in the estuary. The recent completion of a large hydroelectric project on the main affluent of Lake Melville could alter the seasonal flow of freshwater and, ultimately, fish distribution. This study contributes to the growing library of resources from which to assess future changes in biodiversity and distribution of fish in the estuary.
Cris-Inaf: A Fruitful Cooperation Among It Specialists, Librarians, And Researchers
Creators: name: Konomi Ervin
name: Marra Monica
Publisher: name: Zenodo
Year: 2014
Subjects: CRIS
IT
Librarians
Researchers
ADS
Database

description: The Current Research Information System of the Istituto Nazionale di AstroFisica  (CRIS-INAF) is an institutional archive of the whole scientific and technological outcome of the staff. The system is the result of the co-operation among four main actors: Information Technologist (system development), Librarians/Documentalists (library science/scholarly communication and scientometry), Administration (central and local management of  staff and structures) and Researchers (mainly, data provision & validation).
On Singular Control Problems with State Constraints and Regime-Switching: A Viscosity Solution Approach
Creators: name: Song, Qingshuo
name: Zhu, Chao
Publisher: name: arXiv
Year: 2012
Subjects: subject: Optimization and Control (math.OC)
subject: Probability (math.PR)
subject: FOS: Mathematics
subject: 93E20, 60J60

description: This paper investigates a singular stochastic control problem for a multi-dimensional regime-switching diffusion process confined in an unbounded domain. The objective is to maximize the total expected discounted rewards from exerting the singular control. Such a formulation stems from application areas such as optimal harvesting multiple species and optimal dividends payments schemes in random environments. With the aid of weak dynamic programming principle and an exponential transformation, we characterize the value function to be the unique constrained viscosity solution of a certain system of coupled nonlinear quasi-variational inequalities. Several examples are analyzed in details to demonstrate the main results.
Testing Models of Intrinsic Brightness Variations in Type Ia Supernovae, and their Impact on Measuring Cosmological Parameters
Creators: name: Kessler, Richard
name: Guy, Julien
name: Marriner, John
name: Betoule, Marc
name: Brinkmann, Jon
name: Cinabro, David
name: El-Hage, Patrick
name: Frieman, Joshua
name: Jha, Saurabh
name: Mosher, Jennifer
name: Schneider, Donald P.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: For spectroscopically confirmed Type Ia supernovae we evaluate models of intrinsic brightness variations with detailed data/Monte Carlo comparisons of the dispersion in the following quantities: Hubble-diagram scatter, color difference (B-V-c) between the true B-V color and the fitted color (c) from the SALT-II light curve model, and photometric redshift residual. The data sample includes 251 ugriz light curves from the 3-season Sloan Digital Sky Survey-II, and 191 griz light curves from the Supernova Legacy Survey 3-year data release. We find that the simplest model of a wavelength-independent (coherent) scatter is not adequate, and that to describe the data the intrinsic scatter model must have wavelength-dependent variations. We use Monte Carlo simulations to examine the standard approach of adding a coherent scatter term in quadrature to the distance-modulus uncertainty in order to bring the reduced chi2 to unity when fitting a Hubble diagram. If the light curve fits include model uncertainties with the correct wavelength dependence of the scatter, we find that the bias on the dark energy equation of state parameter $w$ is negligible. However, incorrect model uncertainties can lead to a significant bias on the distance moduli, with up to ~0.05 mag redshift-dependent variation. For the recent SNLS3 cosmology results we estimate that this effect introduces an additional systematic uncertainty on $w$ of ~0.02, well below the total uncertainty. However, this uncertainty depends on the samples used, and thus this small $w$-uncertainty is not guaranteed in future cosmology results.
description: accepted by ApJ
title: The chemical industry as a key player for climate protection: Learning experiences from cooperation with developing countries and emerging economies
Creators: name: Schreiber, Detlef
name: Bustillos, Paola
Publisher: name: University of Muenster, Institutional Repository MIAMI
Year: 2023
Subjects: subject: 330 Economics

description: This paper is directed to stakeholders from the private sector, public institutions, civil society, and academia that have to do with the production and use of chemicals or climate change, be it in a direct form or indirectly in advisory institutions, research, or government and regulatory bodies. It is meant as a contribution to the discussion on the nexus between chemistry and climate change, presenting the chemical industry as a key sector for building pathways towards climate neutrality. The findings presented in this paper are based on the learning experience of an international cooperation project with developing countries and emerging economies, named Climate Action Programme for the Chemical Industry (CAPCI) (ISC3, 2023). It seeks to inform and inspire the reader on potentials of the chemical industry for implementing GHG mitigation strategies and contributing to achieve climate targets. Furthermore, it shows possibilities for the transfer of knowledge and experiences between industrialized countries and developing or emerging countries as well as south-south collaboration. As chemicals production and use are characterized by international value chains with a growing share of developing countries and emerging economies, international cooperation and knowledge sharing are crucial drivers for enhancing their successful transformation.
Magnetic Dipole Moment of SGRs and AXPs Described as Massive and Magnetic White Dwarfs
Creators: name: Coelho, J. G.
name: Malheiro, M.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: The Anomalous X-ray Pulsars (AXPs) and Soft Gamma-ray Repeaters (SGRs) are some of the most interesting groups of pulsars that have been intensively studied in the recent years. They are understood as neutron stars (NSs) with super strong magnetic fields, namely $B\gtrsim10^{14}$ G. However, in the last two years two SGRs with low magnetic fields $B\sim(10^{12}-10^{13})$ G have been detected. Moreover, three fast and very {\it magnetic} white dwarfs (WDs) have also been observed in the last years. Based on these new pulsar discoveries, we compare and contrast the magnetic fields, magnetic dipole moment, characteristic ages, and X-ray steady luminosities of these two SGRs (in the WD model) with three fast white dwarfs, to conclude that they show strong similarities corroborating an alternative description of several SGRs/AXPs as very massive and magnetic white dwarfs. The pulsar magnetic dipole moment $m$ depending only on the momentum of inertia $I$, and observational properties, such as the period $P$ and its first time derivative $\dot{P}$, can help to identify the scale of $I$ for SGRs/AXPs. We analyze the pulsar magnetic dipole moment $m$ of SGRs and AXPs when a model based on a massive fast rotating highly magnetized white dwarf is considered. We show that the values for $m$ obtained for several SGRs and AXPs are in agreement with the observed range $10^{34}{\rm emu}\leq m \leq10^{36}{\rm emu}$ of isolated and polar magnetic white dwarfs. This result together with the fact that for {\it magnetic} white dwarfs $B\sim(10^6-10^8)$ G their magnetic dipole moments are almost independent of the star rotation period ($10^{4}\lesssim P \lesssim10^{6} {\rm s}$) - a phenomenology not shared by neutron stars pulsars - suggests a possible {\it magnetic} white dwarf nature for some of SGRs/AXPs that have much smaller periods ($P\sim 10$ s).
description: 11 pages, 1 figure, accepted by Publications of the Astronomical Society of Japan (PASJ)
On the countable, measure preserving relation induced on an homogeneous quotient, by the action of a discrete group
Creators: name: Radulescu, Florin
Publisher: name: arXiv
Year: 2012
Subjects: subject: Operator Algebras (math.OA)
subject: FOS: Mathematics

description: We consider a countable discrete group $G$ acting ergodicaly and a.e. freely, by measure-preserving transformations, on an infinite measure space $(\mathcal X,ν)$ with $σ$-finite measure $ν$. Let $Γ\subseteq G$ be an almost normal subgroup with fundamental domain $F\subseteq \mathcal X $ of finite measure. Let $\mathcal R_G$ be the countable measurable equivalence relation on $\mathcal X$ determined by the orbits of $G$. Let $\mathcal R_G| F$ be its restriction to $F$. We find an explicit presentation, by generators and relations, for the von Neumann algebra associated, by the Feldman-Moore (\cite{FM}) construction, to the relation $\mathcal R_G|_F$. The generators of the relation $\mathcal R_G|_F$ are a set of transformations of the quotient space $F\cong \mathcal X/ Γ$, in a one to one correspondence with the cosets of $Γ$ in $G$. We prove that the composition formula for these transformations is an averaged version, with coefficients in $L^\infty(F,ν)$, of the Hecke algebra product formula (\cite{BC}). In the situation $G = PGL_2(\mathbb Z[\frac1p])$, $Γ=PSL_2(\mathbb Z)$, $p\geq 3$ prime number, the relation $\mathcal R_G|_F$ is the equivalence relation associated to a free, measure-preserving action of a free group on $(p+1)/2$ generators on $F$ (\cite{Ad},\cite {Hj}). We use the coset representations of the transformations generating $\mathcal R_G|_F$ to find a canonical treeing (\cite{Ga}).
description: Extensive editorial revision of the previous version, 32 pages
Fire–Weather Relationship In The Italian Peninsula
Creators: name: Masala, Francesco
name: Bacciu, Valentina
name: Sirca, Costantino
name: Spano, Donatella
Publisher: name: Zenodo
Year: 2012
Subjects: fire regime, MARS, piro-climatic areas

description: Climate and weather are two of the main key factors influencing fire regime and they have a number of different effects on fire. The objective of this work is to improve our knowledge of the relationship between meteorological variables and forest fire across Italian peninsula. In the first part of this work, we collected meteorological and fire events data. The second part of the work involved the assemblage of fire and weather data into a GIS to facilitate manipulation and display of the data and the classification of Italian peninsula in homogeneous climatic areas, through hierarchical cluster analysis of meteorological data. A set of parametric and not parametric statistical tests were used to analyse the fire-weather relathionships. The results showed that both fire number and burned area are highly related with rainfall in summer and winter, considering both peninsular Italy and each cluster. The results confirmed the crucial role of high resolution datasets in analyzing fire and weather trends and relationships, and could be promisingly applied as input to develop and calibrate models for studying the impacts of climate change on fires.
Die Keramikfunde aus der Grabung auf Parzelle 91/4 in Unterregenbach, Stadt Langenburg, Kreis Schwäbisch Hall
Creators: name: Gross, Uwe
Publisher: name: Fundberichte aus Baden-Württemberg
Year: 2019

description: Fundberichte aus Baden-Württemberg, Bd. 22 Nr. 1 (1998): Fundberichte aus Baden-Württemberg
Outward Migration of Jupiter and Saturn in Evolved Gaseous Disks
Creators: name: D'Angelo, Gennaro
name: Marzari, Francesco
Publisher: name: arXiv
Year: 2012
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: The outward migration of a pair of resonant-orbit planets, driven by tidal interactions with a gas-dominated disk, is studied in the context of evolved solar nebula models. The planets' masses, M1 and M2, correspond to those of Jupiter and Saturn. Hydrodynamical calculations in two and three dimensions are used to quantify the migration rates and analyze the conditions under which the outward migration mechanism may operate. The planets are taken to be fully formed after 1e6 and before 3e6 years. The orbital evolution of the planets in an evolving disk is then calculated until the disk's gas is completely dissipated. Orbital locking in the 3:2 mean motion resonance may lead to outward migration under appropriate conditions of disk viscosity and temperature. However, resonance locking does not necessarily result in outward migration. This is the case, for example, if convergent migration leads to locking in the 2:1 mean motion resonance, as post-formation disk conditions seem to suggest. Accretion of gas on the planets may deactivate the outward migration mechanism by raising the mass ratio M2/M1 and/or by reducing the accretion rate toward the star, hence depleting the inner disk. For migrating planets locked in the 3:2 mean motion resonance, there are stalling radii that depend on disk viscosity and on stellar irradiation, when it determines the disk's thermal balance. Planets locked in the 3:2 orbital resonance that start moving outward from within 1-2 AU may reach beyond 5 AU only under favorable conditions. However, within the explored space of disk parameters, only a small fraction - less than a few per cent - of the models predict that the interior planet reaches beyond 4 AU.
description: 24 pages, 22 figures. To appear in The Astrophysical Journal. Updated with corrections added in proof
Mateja Kos, Maja Žvanut, Ljubljanske steklarne v 16. stoletju in njihovi izdelki (Glassfactories in Ljubljana in the 16th Century and their products)
Creators: name: Prohaska-Gross, Christine
Publisher: name: Fundberichte aus Baden-Württemberg
Year: 2019

description: Rezension zu: Mateja Kos, Maja Žvanut, Ljubljanske steklarne v 16. stoletju in njihovi izdelki (Glassfactories in Ljubljana in the 16th Century and their products). Viri. Gradivo za matenalno kulturo slovencev I. Tiskarna Delo, Ljubljana 1994. 84 Seiten, 6 Tafeln, 16 Farbfotos.
description: Fundberichte aus Baden-Württemberg, Bd. 22 Nr. 1 (1998): Fundberichte aus Baden-Württemberg
Performance of the LHCb RICH detector at the LHC
Creators: name: Adinolfi, M.
name: Rinella, G. Aglieri
name: Albrecht, E.
name: Bellunato, T.
name: Benson, S.
name: Blake, T.
name: Blanks, C.
name: Brisbane, S.
name: Brook, N. H.
name: Calvi, M.
name: Cameron, B.
name: Cardinale, R.
name: Carson, L.
name: Contu, A.
name: Coombes, M.
name: D'Ambrosio, C.
name: Easo, S.
name: Egede, U.
name: Eisenhardt, S.
name: Fanchini, E.
name: Fitzpatrick, C.
name: Fontanelli, F.
name: Forty, R.
name: Frei, C.
name: Gandini, P.
name: Gao, R.
name: Tico, J. Garra
name: Gibson, V.
name: Gotti, C.
name: Gregson, S.
name: Gys, T.
name: Haines, S. C.
name: Hampson, T.
name: Harnew, N.
name: Hill, D.
name: Hunt, P.
name: John, M.
name: Jones, C. R.
name: Johnson, D.
name: Kanaya, N.
name: Katvars, S.
name: Kerzel, U.
name: Kim, Y. M.
name: Koblitz, S.
name: Kucharczyk, M.
name: Lambert, D.
name: Lambert, R. W.
name: Main, A.
name: Maino, M.
name: Malde, S.
name: Mangiafave, N.
name: Matteuzzi, C.
name: Mini', G.
name: Mollen, A.
name: Morant, J.
name: Mountain, R.
name: Morris, J. V.
name: Muheim, F.
name: Muresan, R.
name: Nardulli, J.
name: Owen, P.
name: Papanestis, A.
name: Patel, M.
name: Patrick, G. N.
name: Perego, D. L.
name: Pessina, G.
name: Petrolini, A.
name: Piedigrossi, D.
name: Plackett, R.
name: Playfer, S.
name: Powell, A.
name: Rademacker, J. H.
name: Ricciardi, S.
name: Rogers, G. J.
name: Sail, P.
name: Sannino, M.
name: Savidge, T.
name: Sepp, I.
name: Sigurdsson, S.
name: Soler, F. J. P.
name: Solomin, A.
name: Soomro, F.
name: Sparkes, A.
name: Spradlin, P.
name: Storaci, B.
name: Thomas, C.
name: Topp-Joergensen, S.
name: Torr, N.
name: Ullaland, O.
name: Vervink, K.
name: Voong, D.
name: Websdale, D.
name: Wilkinson, G.
name: Wotton, S. A.
name: Wyllie, K.
name: Xing, F.
name: Young, R.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: The LHCb experiment has been taking data at the Large Hadron Collider (LHC) at CERN since the end of 2009. One of its key detector components is the Ring-Imaging Cherenkov (RICH) system. This provides charged particle identification over a wide momentum range, from 2-100 GeV/c. The operation and control software, and online monitoring of the RICH system are described. The particle identification performance is presented, as measured using data from the LHC. Excellent separation of hadronic particle types (pion, kaon and proton) is achieved.
Historical Relationship Between Climate And Fire Regime In Asagı Köprüçay Basin (Antalya, Turkey)
Creators: name: Kavgaci, Ali
name: Salis, Michele
Publisher: name: Zenodo
Year: 2012
Subjects: Antalya, Climate, Fire, Logistic regression, Turkey

description: In this work, we analyzed fire regime, climatic trend and relationships between fire and climate in the Asağı Köprüçay basin (Antalya, Turkey), an area of about 205,000 hectares.

The study area is intensively affected by forest fires. Since the historical data on fires were consistent in detail after 1979, we analyzed the historical period 1979-2009. Regarding the climate analysis, data of four meteorological stations representing the different climatic conditions of the study area were taken into consideration. Daily records of maximum, mean and minimum temperatures, precipitation, wind speed and direction, relative humidity were used for the analysis. In the study period, mean and minimum temperatures showed a statistically significant increasing trend with time. The trends of fire number,

burned area and meteorological data were analyzed by using correlation and linear regression techniques. Regarding the historical trends in terms of fire number, no statistically significant trends were observed, because of the high inter-annual variability of the data. The burnt areas showed a general increasing trend that is not statistically significant. No statistically significant correlation between fire number and burnt area was observed. The relationships between weather parameters and the main indicators of fire activity: fire days (FD, at least 1 fire per day), large fire days (LFD, at least 20 hectares per day), multiple fire days (MFD, more than 1 fire per day), were investigated by the application of the logistic regression. The historical relationship between weather variables and the main indicators of the fire activity (FD, LFD, MFD) were analyzed by a set of logistic regression models. In particular, 4 models provided the best combined response in predicting the different fire activity indices on both annual and seasonal data. The different models were characterised by low estimation accuracies for FD, while the best results were obtained for LFD. Temperature and relative humidity are the weather variables mostly correlated with the fire activity probability as predicted by the logistic models. An increase in the accuracy was generally obtained where the 3 and 7 days minimum and maximum average values were used instead of the daily mean values of the weather variables.
DNA detected biodiversity in cryptic habitats – phylogenetic diversity
Creators: name: Frøslev, Tobias Guldberg
name: Schigel, Dmitry
name: Mikryukov, Vladimir
Publisher: name: Zenodo
Year: 2023
Subjects: Biodiversity

description: Phylogenetic diversity indices evaluate biological communities from the perspective of the evolutionary interrelationship between species, and thus, help to maximise taxonomic, genetic, or functional diversity conservation effectiveness. Phylogenetic diversity (PD) is an indicator that is pointed out in the recent COP 15 Global Biodiversity Framework to measure biodiversity. This use case aims to improve computation time of the existing pipeline (PhyloNext), to make it a real-time exploration tool. Also, we wish to combine the PhyloNext pipeline with the possibility to feed in some geographic constraints to be able to address specific questions related to prioritisation of nature conservation based on phylogenetic diversity and derived metrics of biodiversity. The poster was first presented at the BioDT Annual Meeting 2023, 13-14 June in Leiden, Netherlands. Learn more
The Transiting System GJ1214: High-Precision Defocused Transit Observations and a Search for Evidence of Transit Timing Variation
Creators: name: Harpsøe, K. B. W.
name: Hardis, S.
name: Hinse, T. C.
name: Jørgensen, U. G.
name: Mancini, L.
name: Southworth, J.
name: Alsubai, K. A.
name: Bozza, V.
name: Browne, P.
name: Burgdorf, M. J.
name: Novati, S. Calchi
name: Dodds, P.
name: Dominik, M.
name: Fang, X. -S.
name: Finet, F.
name: Gerner, T.
name: Gu, S. -H.
name: Hundertmark, M.
name: Kains, N.
name: Kerins, E.
name: Kjeldsen, H.
name: Liebig, C.
name: Lund, M. N.
name: Lundkvist, M.
name: Mathiasen, M.
name: Nesvorný, D.
name: Nikolov, N.
name: Penny, M. T.
name: Proft, S.
name: Rahvar, S.
name: Ricci, D.
name: Sahu, K. C.
name: Scarpetta, G.
name: Schäfer, S.
name: Schönebeck, F.
name: Snodgrass, C.
name: Skottfelt, J.
name: Surdej, J.
name: Tregloan-Reed, J.
name: Wertz, O.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: Aims: We present 11 high-precision photometric transit observations of the transiting super-Earth planet GJ1214b. Combining these data with observations from other authors, we investigate the ephemeris for possible signs of transit timing variations (TTVs) using a Bayesian approach. Methods: The observations were obtained using telescope-defocusing techniques, and achieve a high precision with random errors in the photometry as low as 1mmag per point. To investigate the possibility of TTVs in the light curve, we calculate the overall probability of a TTV signal using Bayesian methods. Results: The observations are used to determine the photometric parameters and the physical properties of the GJ1214 system. Our results are in good agreement with published values. Individual times of mid-transit are measured with uncertainties as low as 10s, allowing us to reduce the uncertainty in the orbital period by a factor of two. Conclusions: A Bayesian analysis reveals that it is highly improbable that the observed transit times is explained by TTV, when compared with the simpler alternative of a linear ephemeris.
description: Submitted to A&A
Quantum Information, Thermofield Dynamics and Thermalized Bosonic Oscillator
Creators: name: Trindade, Marco A. S.
name: Filho, Lourival M. Silva
name: Santos, Leandro C.
name: Martins, Maria Graças R.
name: Vianna, José David M.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We show through Thermofield Dynamics approach that the action of the thermalized quantum logic gate on the thermalized state is equivalent to thermalization of the state that arise from the application of the non-thermalized quantum logic gate. In particular, we study the effect of temperature on a mixed state associated to a system capable of implementing a CNOT quantum logic gate. According to a proposal in the literature, a way of implementing such a logic gate is by using a representation of the qubit states as elements of the Fock space of a bosonic system. We consider such a proposal and use the Thermofield Dynamics to determine the thermalized qubit states. The temperature acts as a quantum noise on pure states, making them a statistical mixture. In this context we analyze the fidelity as a function of the temperature and using the Mandel parameter, we determine temperature ranges for which the statistics of the system becomes subpoissonian, poissonian and superpoissonian. Finally, we calculate the Wigner function, allowing an analysis of the thermal state in phase space, and we obtain that the increase of temperature decreases non-classical properties of the system. The temperature range where one has a subpoissonian statistics and high fidelity is determined.
Thermodynamics of a physical model implementing a Maxwell demon
Creators: name: Strasberg, Philipp
name: Schaller, Gernot
name: Brandes, Tobias
name: Esposito, Massimiliano
Publisher: name: arXiv
Year: 2012
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We present a physical implementation of a Maxwell demon which consists of a conventional single electron transistor (SET) capacitively coupled to another quantum dot detecting its state. Altogether, the system is described by stochastic thermodynamics. We identify the regime where the energetics of the SET is not affected by the detection, but where its coarse-grained entropy production is shown to contain a new contribution compared to the isolated SET. This additional contribution can be identified as the information flow generated by the "Maxwell demon" feedback in an idealized limit.
description: 4 pages, 3 figures, V2: as accepted in PRL + ref.[20]
An attempt at a resonating mean-field theoretical description of thermal behavior of two-gap superconductivity
Creators: name: Nishiyama, Seiya
name: da Providencia, Joao
name: Providencia, Constanca
name: Ohnishi, Hiromasa
Publisher: name: arXiv
Year: 2012
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: The resonating mean-field theory (Res-MFT) has been applied and shown to effectively describe two-gap superconductivity (SC). Particularly at T=0 using a suitable chemical potential, the two-gap SC in MgB2 has been well described by the Res-Hartree-Bogoliubov theory (Res-HBT). The Res-HB ground state generated with HB wave functions almost exhausts the ground-state correlation energy in all the correlation regimes. In this paper we make an attempt at a Res-MF theoretical description of thermal behavior of the two-gap SC. In an energy-gap case we find a new formula leading to a higher Tc than the Tc of the usual HB formula.
description: 20 pages, 3 figures. Modify Abstract, change Introduction, Section 2 drastically and modify Summary and further perspectives. Minor typos corrected. Add two Appendices and new Refernces, arXiv admin note: substantial text overlap with arXiv:1010.4740
The role of the nature of the noise in the thermal conductance of mechanical systems
Creators: name: Morgado, Welles A. M.
name: Queiros, Silvio M. Duarte
Publisher: name: arXiv
Year: 2012
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: Focussing on a paradigmatic small system consisting of two coupled damped oscillators, we survey the role of the Lévy-Itô nature of the noise in the thermal conductance. For white noises, we prove that the Lévy-Itô composition (Lebesgue measure) of the noise is irrelevant for the thermal conductance of a non-equilibrium linearly coupled chain, which signals the independence between mechanical and thermodynamical properties. On the other hand, for the non-linearly coupled case, the two types of properties mix and the explicit definition of the noise plays a central role.
description: 9 pages, 2 figures. To be published in Physical Review E
title: An integrated method for detection and mitigation of ice accretion on wind turbine blades
Creators: name: Madi, Ezieddin Ahmed
Publisher: name: Memorial University of Newfoundland
Year: 2023

description: Ice formation on structures, particularly on the leading edges of curved surfaces such as cylinders and airfoils, can be dangerous, and it is necessary to use an ice sensor combined with an ice mitigation system to prevent ice from forming on these surfaces. Wind turbine blades, which are commonly used in cold climate regions, are particularly susceptible to ice accumulation due to their sensitivity to changes in aerodynamic performance. To address this issue, it is necessary to have an integrated system for detecting and mitigating ice formation on wind turbine blades. Various ice detection and mitigation techniques for wind turbine blades in cold regions are reviewed and categorized based on key parameters. The conceptual design of integrating ice sensing and mitigation systems is also investigated, along with the advantages and disadvantages of these systems. A new technique for estimating the volume of frozen water droplets on a cold solid surface based on the contact angle and thermal images is presented. This technique takes into consideration factors such as temperature, surface roughness, and droplet size. An integrated ice tracking and mitigation technique using thermal imaging and heat elements along the stagnation line of a cylindrical surface is developed. This technique, which employs IR camera to monitor ice buildup, de-icing, and relaxation, is validated using an optical camera. The average uncertainty of ice thickness determined from thermal and optical images is about 0.16 mm during ice buildup and about 0.1 mm during ice mitigation, making it suitable for many cold environment applications. Finally, the relationship between ice thickness at the stagnation line and ice thickness at the heater edge is investigated in order to control ice accumulation mass and limit the heat energy required for de-icing. It is shown through de-icing experiments that the heat energy needed to remove the ice accumulation on the surface of a cylinder can be reduced by controlling the ice thickness at the heater's edge.