cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Partonic Interpretation of Generalized Parton Distributions
Creators: name: Goldstein, Gary R.
name: Liuti, Simonetta
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Generalized Parton Distributions describe, within QCD factorization, the non perturbative component in the amplitudes for deeply virtual exclusive processes. However, in order for a partonic interpretation to hold, semi-disconnected diagrams should not contribute. We show that this condition is not satisfied for non-forward kinematics at leading order, and that gluon mediated re-interactions are essential for a consistent description in terms of parton degrees of freedom.
description: 4 pages, 3 figures, replaced figure 2, revised conclusions, added references
title: League of Nations
title: League of Nations
Creators: name: Ziegerhofer, Anita
Publisher: name: BSB - Bavarian State Library
Year: 2019
Subjects: subject: Völkerbund
subject: League of Nations

description: International Encyclopedia of the First World War
description: 1914-1918-Online International Encyclopedia of the First World War
description: 1914-1918-Online International Encyclopedia of the First World War
Science policy opportunities with JSPG
Creators: name: Bankston, Adriana
Publisher: name: F1000 Research Limited
Year: 2022

description: This presentation was given during a Seminar for the Office of Graduate and Postdoctoral Affairs (OGPA) and Postdoctoral Association (PDA) at The University of Chicago Biological Sciences Division (BSD) on January 21, 2022. The talk covered opportunities for early career scholars to publish in JSPG, and hone their research and writing skills in science policy through a number of professional development events.
Proof of Gal's conjecture for the D series of generalized associahedra
Creators: name: Gorsky, Mikhail
Publisher: name: arXiv
Year: 2011
Subjects: subject: Combinatorics (math.CO)
subject: FOS: Mathematics
subject: Primary 52B05, 13F60

description: In this short note we consider generalized associahedra of type D_n. We prove that these simple flag polytopes are not nestohedra for n > 3, but the statement of Gal's conjecture holds for them.
title: Balfour Declaration
title: Balfour Declaration
Creators: name: Rhett, Maryanne A.
Publisher: name: BSB - Bavarian State Library
Year: 2019
Subjects: subject: Balfour-Deklaration
subject: Balfour Declaration

description: The Balfour Declaration, the document that set the stage for establishing the state of Israel, was the product of months of wordsmithing and political jockeying. The evolution of its final wording sheds light on the goals and agendas of political powers in their advocacy for definitions of “nation.”
description: 1914-1918-Online International Encyclopedia of the First World War
description: 1914-1918-Online International Encyclopedia of the First World War
Failure analysis and prediction in compute clouds
Creators: name: Chen, Xin
Publisher: name: University of British Columbia
Year: 2014

description: Most cloud computing clusters are built from unreliable, commercial off-the-shelf components compared with supercomputer clusters. The high failure rates in their hardware and software components result in frequent node and application failures. Therefore, it is important to understand their failures to design a reliable cloud system. This thesis presents a characterization study of cloud application failures, and proposes a method to predict application failures in order to save resources. We first analyze a workload trace from a production cloud cluster and characterize the observed failures. The goal of our work is to improve the understanding of failures in compute clouds. We present the statistical properties of job and task failures, and attempt to correlate them with key scheduling constraints, node operations, and attributes of users in the cloud. We observe that there are many opportunities to enhance the reliability of the applications running in the cloud, and further nd that resource usage patterns of the jobs can be leveraged by failure prediction techniques. Next, we propose a prediction method based on recurrent neural networks to identify the failures. It takes the resource usage measurements or performance data, and generate features to categorize the applications into different classes. We then evaluate the method on the cloud workload trace. Our results show that the model is able to predict application failures. Moreover, we explore early classification to identify failures, and find that the prediction algorithm provides the cloud system enough time to take proactive actions much earlier than the termination of applications to avoid resource wastage.
title: Nationalities (Austria-Hungary)
title: Nationalities (Austria-Hungary)
Creators: name: Stergar, Rok
Publisher: name: BSB - Bavarian State Library
Year: 2019
Subjects: subject: Österreich-Ungarn
subject: Nationalitätenfrage
subject: Austria--Politics and government--1867-1918
subject: Nationalism--Austria

description: Recent research has questioned the view that that the population of Austria-Hungary consisted of nations, and that conflicts between them were the main cause of its demise. Nationalism was an important basis for group building, but not the only one and not always the most relevant. Wartime developments made it more significant and diminished imperial patriotism. Yet Austria-Hungary did not fall apart because of this. Apart from the Entente decision to dismember it, the crucial cause of its demise was the changed attitude of nationalist politicians, who did not see Austria-Hungary as viable anymore.
description: 1914-1918-Online International Encyclopedia of the First World War
description: 1914-1918-Online International Encyclopedia of the First World War
MPEC 2023-H191 : 2010 VM65
Creators: name: Minor Planet Center Staff
Publisher: name: The Minor Planet Center
Year: 2023
Subjects: subject: Small Solar System bodies
valueUri: http://astrothesaurus.org/uat/1469

description: The Minor Planet Electronic Circulars contain information on unusual minor planets, routine data on comets and natural satellites, and occasional editorial announcements.  They are published on behalf of Division F of the International Astronomical Union by the Minor Planet Center, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
Aging in coarsening diluted ferromagnets
Creators: name: Park, Hyunhang
name: Pleimling, Michel
Publisher: name: arXiv
Year: 2010
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: FOS: Physical sciences

description: We comprehensively study non-equilibrium relaxation and aging processes in the two-dimensional random-site Ising model through numerical simulations. We discuss the dynamical correlation length as well as scaling functions of various two-times quantities as a function of temperature and of the degree of dilution. For already modest values of the dynamical correlation length $L$ deviations from a simple algebraic growth, $L(t) \sim t^{1/z}$, are observed. When taking this non-algebraic growth properly into account, a simple aging behavior of the autocorrelation function is found. This is in stark contrast to earlier studies where, based on the assumption of algebraic growth, a superaging scenario was postulated for the autocorrelation function in disordered ferromagnets. We also study the scaling behavior of the space-time correlation as well as of the time integrated linear response and find again agreement with simple aging. Finally, we briefly discuss the possibility of superuniversality in the scaling properties of space- and time-dependent quantities.
description: 23 pages, 7 figures, to appear in Physical Review B
Convergence Characteristics of the Cumulant Expansion for Fourier Path Integrals
Creators: name: Kunikeev, Sharif D.
name: Freeman, David L.
name: Doll, J. D.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Computational Physics (physics.comp-ph)
subject: Mathematical Physics (math-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The cumulant representation of the Fourier path integral method is examined to determine the asymptotic convergence characteristics of the imaginary-time density matrix with respect to the number of path variables $N$ included. It is proved that when the cumulant expansion is truncated at order $p$, the asymptotic convergence rate of the density matrix behaves like $N^{-(2p+1)}$. The complex algebra associated with the proof is simplified by introducing a diagrammatic representation of the contributing terms along with an associated linked-cluster theorem. The cumulant terms at each order are expanded in a series such that the the asymptotic convergence rate is maintained without the need to calculate the full cumulant at order $p$. Using this truncated expansion of each cumulant at order $p$, the numerical cost in developing Fourier path integral expressions having convergence order $N^{-(2p+1)}$ is shown to be approximately linear in the number of required potential energy evaluations making the method promising for actual numerical implementation.
description: 47 pages, 2 figures, submitted to PRE
title: Women War Reporters
title: Women War Reporters
Creators: name: Seul, Stephanie
Publisher: name: BSB - Bavarian State Library
Year: 2019
Subjects: subject: Weltkrieg [1914-1918]
subject: Kriegsberichterstattung
subject: World War, 1914-1918
subject: Women journalists

description: Female war reporters from belligerent and neutral countries were present in the major war theatres in Europe and the Middle East throughout 1914 to 1918. While admission of journalists to the war zones was severely restricted by the Allies and Central Powers, a considerable number of women managed to access the frontlines or their vicinities and to publish their eyewitness accounts and photographs in well-known newspapers and magazines. Still, studies of female war reporters are rare and women are conspicuously absent from the leading surveys of war correspondents. This article outlines the diversity of female war reporting during the First World War from a comparative and transnational perspective.
description: 1914-1918-Online International Encyclopedia of the First World War
description: 1914-1918-Online International Encyclopedia of the First World War
title: Centenary (Armenia)
title: Centenary (Armenia)
Creators: name: Adjemian, Boris
Publisher: name: BSB - Bavarian State Library
Year: 2019
Subjects: subject: Weltkrieg [1914-1918]
subject: Kollektives Gedächtnis
subject: Gedenkfeier
subject: World War, 1914-1918--Anniversaries, etc.

description: In the midst of the First World War centennial, the centenary of the Armenian Genocide elicited commemorations whose unprecedented scope revealed some of the broad outlines of a geopolitics of memory. While in Turkey the event met with official state denialism, the Republic of Armenia, conversely, sought to render it an asset in its foreign policy. Elsewhere, and especially in some countries such as France, the unfolding of commemorations has provided a measure of the undeniable progress towards recognizing a genocide that had long been forgotten or ignored.
description: 1914-1918-Online International Encyclopedia of the First World War
description: 1914-1918-Online International Encyclopedia of the First World War
Therapeutic effect of Vitamin D on dilated cardiomyopathy
Creators: name: Babar, Danyal
Publisher: name: figshare
Year: 2022
Subjects: subject: 119999 Medical and Health Sciences not elsewhere classified
subject: FOS: Other medical sciences
subject: 111717 Primary Health Care
subject: FOS: Health sciences
subject: Health Care

description: Objective: Patients with heart failure may benefit from vitamin D treatment, according to new research. Methods: In our current nonrandomized clinical research, 43 individuals with dilated cardiomyopathy who did not exhibit substantial gains in physical functioning with optimum heart failure therapy were included. Twelve weeks of weekly vitamin D supplements (200,000 IU) were added to the heart failure therapy to help improve the patient's condition. On the other hand, researchers looked at how it affected the 6-minute walk distance and pro-BNP levels. To analyses the data, we utilized SPSS version 19. Accordingly, we utilized random samples t-tests to assess the substantial role of vitamin D supplementation on pre-intervention vitamin D level, 6-minute walk distance, and pro-BNP level, respectively. Significance was defined as an alpha value less than 0.01. Results: Individuals in NYHA class II (66%) were the majority, while those in NYHA classes I, III and IV were represented by 18%, 8% and 5%, accordingly. After a follow-up of 14 weeks, the mean vitamin D level was increased from 17.596 ng/ml at baseline to 32.974 ng/ml (p < 0.0006). Pre-intervention mean distance travelled was 806382 ft, and after follow-up it was 945392 ft with p value of 0.07. While before the intervention, the mean per-BNP level of research participant was 1025-636, and after intervention, it had enhanced to 160-80--a statistically significant improvement with p value of < 0.005. Conclusion: Vitamin D administration decreases the intensity of heart failure, characterized by a decline in the levels of pro-BNP and an increase in the six-minute walk distance
title: Exile and Migration (Sweden)
title: Exile and Migration (Sweden)
Creators: name: Kvist Geverts, Karin
Publisher: name: BSB - Bavarian State Library
Year: 2019
Subjects: subject: Weltkrieg [1914-1918]
subject: Schweden
subject: Sweden--Emigration and immigration
subject: History

description: Migration to and from Sweden has always occurred, but since emigration was larger than immigration, there was no need for immigration control. The outbreak of the war changed that. Although few refugees sought shelter in Sweden, immigration control was introduced. The authorities saw immigration legislation as something temporary, but it remained and even expanded after 1918. Although neutrality shaped the self-image of the country as a humanitarian outsider, the war also led to an increasing suspicion of “foreigners” and racist stereotyping. This article describes migration to and from Sweden around the First World War, with a special focus on immigration control and legislation.
description: 1914-1918-Online International Encyclopedia of the First World War
description: 1914-1918-Online International Encyclopedia of the First World War
Constraints on Neutrino-Nucleon Interactions at energies of 1 EeV with the IceCube Neutrino Observatory
Creators: name: Yoshida, Shigeru
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: A search for extremely high energy cosmic neutrinos has been carried out with the IceCube Neutrino Observatory. The main signals in the search are neutrino-induced energetic charged leptons and their rate depends on the neutrino-nucleon cross section. The upper-limit on the neutrino flux has implications for possible new physics beyond the standard model such as the extra space-time dimension scenarios which lead to a cross section much higher than the standard particle physics prediction. In this study we constrain the neutrino-nucleon cross section at energies beyond $10^9$ GeV with the IceCube observation. The constraints are obtained as a function of the extraterrestrial neutrino flux in the relevant energy range, which accounts for the astrophysical uncertainty of neutrino production models.
description: submitted to Physical Review D
title: Provincial Capitals (Japan)
title: Provincial Capitals (Japan)
Creators: name: Young, Louise
Publisher: name: BSB - Bavarian State Library
Year: 2019
Subjects: subject: Japan
subject: Verstädterung
subject: Urbanization--Japan

description: Though of minimal significance for Japan militarily, the Great War helped stimulate the formation of a modern industrial economy in urban centers across the archipelago. The war boom of 1915-1918 ushered in a period of explosive urban growth, with a particular impact on economy and society in Japan’s provincial capitals.
description: 1914-1918-Online International Encyclopedia of the First World War
description: 1914-1918-Online International Encyclopedia of the First World War
title: Social Conflict and Control, Protest and Repression (Portugal)
title: Social Conflict and Control, Protest and Repression (Portugal)
Creators: name: Dias Pereira, Joana
Publisher: name: BSB - Bavarian State Library
Year: 2019
Subjects: subject: Portugal
subject: Weltkrieg [1914-1918]
subject: World War, 1914-1918--Portugal

description: This article analyses the evolution of the repertoire of collective action during the First World War, in its different forms including strikes, public protests, demonstrations, riots, assaults, etc. The empirical data was collected from the national press as well as the documentary fund of the Ministry of Interior, which collects reports from security guards and local administrations. This article intends to clarify the nature of popular unrest and the connections between popular revolts over food and the labour movement.
description: 1914-1918-Online International Encyclopedia of the First World War
description: 1914-1918-Online International Encyclopedia of the First World War
title: Warfare 1914-1918 (Ottoman Empire/Middle East)
title: Warfare 1914-1918 (Ottoman Empire/Middle East)
Creators: name: Baş, Mehmet Fatih
Publisher: name: BSB - Bavarian State Library
Year: 2019
Subjects: subject: Osmanisches Reich
subject: Weltkrieg [1914-1918]
subject: World War, 1914-1918--Campaigns--Turkey
subject: World War, 1914-1918--Campaigns--Middle East
subject: Warfare

description: When the Ottoman Empire entered the war, the potential Middle Eastern theater of operations was regarded as a mere sideshow. Widely viewed as an inferior fighting force, the Ottoman Army was simply tasked with drawing on itself as many enemy forces as possible; thus relieiving Germany on the Western Front, where the decisive battles would eventually take place. Throughout the war, the Ottoman Army, not only drew on itself a considerable British and Russian force, it also helped its allies by sending expeditionary corps to the campaigns in Eastern Europe. The army sustained itself throughout the war and by November 1918, though heavily battered, it was still fighting on.
description: 1914-1918-Online International Encyclopedia of the First World War
description: 1914-1918-Online International Encyclopedia of the First World War
Technical evaluation of a stand-alone PV heat pump system for space heating/ cooling applications without batteries
Creators: name: Lorenzo, Celena
name: Narvarte, Luis
name: Martínez-Moreno, Francisco
Publisher: name: Zenodo
Year: 2019
Subjects: Evaluation, Heat Pump, Stand-alone PV system, Performance

description: In the last years, the concept of solar photovoltaic (PV) powered heat pumps (HP) has become very attractive, in order to match the increasing heating/cooling demand with a renewable and environmentally-friendly energy source. The objective of this work is to technically validate a stand-alone PV-HP system for space heating/cooling applications. This paper describes the prototype system installed in Madrid (Spain) for this purpose, together with the definition of the validation tests to be performed. Finally, some modifications are proposed for the performance indicators that are traditionally used for comparing HP and PV systems, in order to achieve a characterization that is more specific to PV-powered systems.
Cross-correlation of the 2XMMi catalogue with Data Release 7 of the Sloan Digital Sky Survey
Creators: name: Pineau, F. -X.
name: Motch, C.
name: Carrera, F.
name: Della Ceca, R.
name: Derriere, S.
name: Michel, L.
name: Schwope, A.
name: Watson, M. G.
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: The Survey Science Centre of the XMM-Newton satellite released the first incremental version of the 2XMM catalogue in August 2008 . With more than 220,000 X-ray sources, the 2XMMi was at that time the largest catalogue of X-ray sources ever published and thus constitutes an unprecedented resource for studying the high-energy properties of various classes of X-ray emitters such as AGN and stars. The advent of the 7th release of the Sloan Digital Sky Survey offers the opportunity to cross-match two major surveys and extend the spectral energy distribution of many 2XMMi sources towards the optical bands. We here present a cross-matching algorithm based on the classical likelihood ratio estimator. The method developed has the advantage of providing true probabilities of identifications without resorting to Monte-Carlo simulations. Over 30,000 2XMMi sources have SDSS counterparts with individual probabilities of identification higher than 90%. Using spectroscopic identifications from the SDSS DR7 catalogue supplemented by extraction from other catalogues, we build an identified sample from which the way the various classes of X-ray emitters gather in the multi dimensional parameter space can be analysed. We investigate two scientific use cases. In the first example we show how these multi-wavelength data can be used to search for new QSO2s. Although no specific range of observed properties allows us to identify Compton Thick QSO2s, we show that the prospects are much better for Compton Thin AGN2 and discuss several possible multi-parameter selection strategies. In a second example, we confirm the hardening of the mean X-ray spectrum with increasing X-ray luminosity on a sample of over 500 X-ray active stars and reveal that on average X-ray active M stars display bluer $g-r$ colour indexes than less active ones (abridged).
description: Accepted for publication in A&A. The corresponding fits file can be downloaded from the XCat-DB home page (http://xcatdb.u-strasbg.fr/) (tools and data). The file also contains line information for all SDSS spectroscopic entries matching a 2XMM source. Results from the cross-correlation with the 2XMM DR3 are also available at the same location. 22 pages and 14 figures
Additional file 6 of Effects of mouth breathing on facial skeletal development in children: a systematic review and meta-analysis
Creators: name: Zhao, Ziyi
name: Zheng, Leilei
name: Huang, Xiaoya
name: Li, Caiyu
name: Liu, Jing
name: Hu, Yun
Publisher: name: figshare
Year: 2021
Subjects: subject: Medicine
subject: Sociology
subject: FOS: Sociology
subject: Inorganic Chemistry
subject: FOS: Chemical sciences

description: Additional file 6: Forest plot  for children aged 2–10.
Perceptually based compression of emerging digital media content
Creators: name: Azimi Hashemi, Maryam
Publisher: name: University of British Columbia
Year: 2014

description: Digital video has become ubiquitous in our everyday lives; everywhere we look, there are devices that can display, capture, and transmit video. The recent advances in technology have made it possible to capture and display HD stereoscopic (3D) and High Dynamic Range (HDR) videos. However, the current broadcasting networks do not even have sufficient capacity to transmit large amounts of HD content, let alone 3D and High Dynamic Range. The limitations of the current compression technologies are the motivations behind this thesis, which proposes novel methods for further improving the efficiency of the compression techniques when used on emerging digital media formats. As a first step, we participated in the standardization efforts of High Efficiency Video Coding (HEVC), the latest video compression standard. The knowledge gained from this study became the foundation for the research that followed. We first propose a new method for encoding stereoscopic videos asymmetrically. In traditional asymmetric stereoscopic video coding, the quality of one of the views is reduced while the other view is of original quality. However, this approach is not fair for people with one dominant eye. We address this problem by reducing the quality of horizontal slices in both views. Subjective tests show that the quality, sharpness and depth of the videos encoded by our method are close to those of the original one and that the proposed method is an effective technique for stereoscopic videos coding. In this Thesis we also focus on HDR video technology and we modify the HEVC standards to better characterize HDR content. We first identify a quality metric whose performance on compressed HDR content is highly correlated with subjective results. We then propose a new Lagrangian multiplier that uses this quality metric to strike the best balance between the bit-rate and distortion of the HDR video inside the Rate-Distortion process of the encoder. The updated Lagrange multiplier is implemented on the HEVC reference software. Our experiment results show that, for the same bitrate, the subjective quality scores of the videos encoded by the HDR-accustomed encoder are higher than the ones encoded with the reference encoder.
PT-symmetry breaking in complex nonlinear wave equations and their deformations
Creators: name: Cavaglia, Andrea
name: Fring, Andreas
name: Bagchi, Bijan
Publisher: name: arXiv
Year: 2011
Subjects: subject: Mathematical Physics (math-ph)
subject: High Energy Physics - Theory (hep-th)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We investigate complex versions of the Korteweg-deVries equations and an Ito type nonlinear system with two coupled nonlinear fields. We systematically construct rational, trigonometric/hyperbolic, elliptic and soliton solutions for these models and focus in particular on physically feasible systems, that is those with real energies. The reality of the energy is usually attributed to different realisations of an antilinear symmetry, as for instance PT-symmetry. It is shown that the symmetry can be spontaneously broken in two alternative ways either by specific choices of the domain or by manipulating the parameters in the solutions of the model, thus leading to complex energies. Surprisingly the reality of the energies can be regained in some cases by a further breaking of the symmetry on the level of the Hamiltonian. In many examples some of the fixed points in the complex solution for the field undergo a Hopf bifurcation in the PT-symmetry breaking process. By employing several different variants of the symmetries we propose many classes of new invariant extensions of these models and study their properties. The reduction of some of these models yields complex quantum mechanical models previously studied.
description: 50 pages, 39 figures (compressed in order to comply with arXiv policy; higher resolutions maybe obtained from the authors upon request)
title: War Aims and War Aims Discussions (Belgium)
title: War Aims and War Aims Discussions (Belgium)
Creators: name: Tuyll, Hubert Van
Publisher: name: BSB - Bavarian State Library
Year: 2019
Subjects: subject: Belgien
subject: Weltkrieg [1914-1918]
subject: World War, 1914-1918--Belgium

description: Belgium’s war aims were a direct consequence of the way in which the country was created. The treaties finalized in 1839 left Belgium with part of Luxembourg and Limburg, and also left the Scheldt access to Antwerp under Dutch control. During World War I, Belgian leaders decided to demand changes to these borders and also to obtain substantial reparations for four years of brutal occupation. However, none of these aims were realized at Versailles.
description: 1914-1918-Online International Encyclopedia of the First World War
description: 1914-1918-Online International Encyclopedia of the First World War
Stochastic orbital migration of small bodies in Saturn's rings
Creators: name: Rein, Hanno
name: Papaloizou, John C. B.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: Many small moonlets, creating propeller structures, have been found in Saturn's rings by the Cassini spacecraft. We study the dynamical evolution of such 20-50m sized bodies which are embedded in Saturn's rings. We estimate the importance of various interaction processes with the ring particles on the moonlet's eccentricity and semi-major axis analytically. For low ring surface densities, the main effects on the evolution of the eccentricity and the semi-major axis are found to be due to collisions and the gravitational interaction with particles in the vicinity of the moonlet. For large surface densities, the gravitational interaction with self-gravitating wakes becomes important. We also perform realistic three dimensional, collisional N-body simulations with up to a quarter of a million particles. A new set of pseudo shear periodic boundary conditions is used which reduces the computational costs by an order of magnitude compared to previous studies. Our analytic estimates are confirmed to within a factor of two. On short timescales the evolution is always dominated by stochastic effects caused by collisions and gravitational interaction with self-gravitating ring particles. These result in a random walk of the moonlet's semi-major axis. The eccentricity of the moonlet quickly reaches an equilibrium value due to collisional damping. The average change in semi-major axis of the moonlet after 100 orbital periods is 10-100m. This translates to an offset in the azimuthal direction of several hundred kilometres. We expect that such a shift is easily observable.
description: 13 pages, 6 figures, submitted to A&A, comments welcome
Influence of the Environment on PAH Emission in Star-Forming Regions
Creators: name: Lebouteiller, V.
name: Bernard-Salas, J.
name: Whelan, D. G.
name: Brandl, B.
name: Galliano, F.
name: Charmandaris, V.
name: Madden, S.
name: Kunth, D.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We investigate the emission properties of polycyclic aromatic hydrocarbons (PAHs) in various metallicity environments with the Infrared Spectrograph on board Spitzer. Local giant HII regions are used as references as they enable access to the distinct interstellar medium components that contribute to the mid-infrared spectrum of star-forming galaxies: photodissociation regions (PDRs), photoionized gas, stellar clusters, and embedded regions. Three objects are considered, NGC3603 in the Milky Way, 30Doradus in the Large Magellanic Cloud, and N66 in the Small Magellanic Cloud. From the variations of the PAH/14um ratio, we find that PAHs are destroyed in the ionized gas for a radiation field such that [NeIII]/[NeII]>3. From the variations of the PAH/Hu-alpha ratio, we find that the PAH emission sources in the giant HII regions follow the same photodestruction law regardless of metallicity. We then compare these results with observations of starburst galaxies, HII galaxies, and blue compact dwarf galaxies (BCDs). While the integrated mid-infrared spectra of BCDs are reminiscent of a warm dusty ionized gas, we observe a significant contribution to the PAH emission in starburst galaxies that is not arising from PDRs.
description: Accepted for publication in the Astrophysical Journal
Measuring minerals in legume samples
Creators: name: Vasconcelos, Marta
name: Santos, Carla
Publisher: name: Zenodo
Year: 2018

description: The consumption of legumes such as chickpea, pea, and faba bean provide great amounts of potassium (K), phosphorus (P), calcium (Ca), magnesium (Mg), iron (Fe) and zinc (Zn) to meet the daily dietary requirements. Potassium, P, Ca and Mg are essential macro-minerals, which are required in equal or greater amounts than 100 mg/day while Fe and Zn are micro-minerals required in more than 15 mg/day. Minerals represent 2.8 to 3.5 kg of body weight in women and men adults respectively. Calcium and P are the major constituents of bones and teeth and represent the larger portion of the mentioned weights. In addition to Ca, K is important in the regulation of neuromuscular activity. Potassium also participates in osmotic equilibrium and acid-base balance with sodium. Mg is involved in bone metabolism as well as acts in the central nervous system and in cardiovascular functions. On the other hand, the micro-nutrients Fe and Zn are often related as they are found in similar food sources. Zinc assumes an important role on the immune system and iron assures the proper functioning of haemoglobin, a protein needed to transport oxygen in the human blood. Disorders of Fe and Zn metabolism such as iron deficiency anaemia (IDA) and cutaneous manifestations of Zn deficiency are common worldwide and result of eating habits that often neglects the importance of food consumption containing enough Fe and Zn. Identifying germplasms that are high in these macro- and micro-elements may have important impacts for human and animal health.
description: The information presented here has been thoroughly researched and is believed to be accurate and correct. However, the authors cannot be held legally responsible for any errors. There are no warranties, expressed or implied, made with respect to the information provided. The authors will not be liable for any direct, indirect, special, incidental or consequential damages arising out of the use or inability to use the content of this publication.
Stormwater management trade-offs for Portland, Seattle and Vancouver, BC
Creators: name: McGarvey, Niall
Publisher: name: University of British Columbia
Year: 2014

description: The separation of stormwater from the sewage waste stream has been implemented in many cities to minimize combined sewer overflows (CSOs) during periods of heavy rain. In the absence of treatment, discharges from separated sewer/stormwater outfalls are also very damaging to aquatic environments as they typically carry numerous nonpoint source pollutants and alter the delicate geomorphology of natural watercourses. A new strategy has emerged during the past few decades that focuses on absorbing, infiltrating and detaining stormwater to reduce peak flows and filter out nonpoint source pollution, thereby addressing CSOs, stormwater runoff pollution and flooding at the same time. An increasing number of cities in the United States and Canada have devised comprehensive plans to incorporate these methods into their overall wastewater management strategies. In an effort to eliminate CSOs and build resilience against flooding the City of Vancouver has committed over $1 billion to separate all of its remaining combined sewer/stormwater infrastructure by 2050. In contrast, Seattle and Portland (Oregon), two cities with similar rainfall patterns and levels of urbanization are following strategies that utilize a combination of targeted conventional stormwater infrastructure upgrades and GI to minimize CSOs, stormwater runoff pollution and flooding. As the City of Vancouver moves forward with its city-wide Integrated Stormwater Management Plan, this thesis contends that its sewer separation project should be revised to also include a comprehensive network of GI. The primary investigatory goal of this thesis is to identify and analyze the social, institutional, economic and technical barriers encountered by Portland and Seattle to the implementation of GI and the key factors that enabled its implementation. This is accomplished through interviews conducted with key staff members from Portland’s Bureau of Environmental Services (BES) and Seattle Public Utilities (SPU), supported by a review of recent literature. It was found that Portland and Seattle overcame a variety of social, institutional, economic and technical barriers through the use of cost effective pilot projects, extensive public consultation, slowly changing the internal culture towards GI within municipal departments, offering financial incentives and through increasing the profile of their projects through awards and competitions.
A New Measurement of the $π^0$ Radiative Decay Width
Creators: name: Larin, I.
name: McNulty, D.
name: Clinton, E.
name: Ambrozewicz, P.
name: Lawrence, D.
name: Nakagawa, I.
name: Prok, Y.
name: Teymurazyan, A.
name: Ahmidouch, A.
name: Asratyan, A.
name: Baker, K.
name: Benton, L.
name: Bernstein, A. M.
name: Burkert, V.
name: Cole, P.
name: Collins, P.
name: Dale, D.
name: Danagoulian, S.
name: Davidenko, G.
name: Demirchyan, R.
name: Deur, A.
name: Dolgolenko, A.
name: Dzyubenko, G.
name: Ent, R.
name: Evdokimov, A.
name: Feng, J.
name: Gabrielyan, M.
name: Gan, L.
name: Gasparian, A.
name: Gevorkyan, S.
name: Glamazdin, A.
name: Goryachev, V.
name: Gyurjyan, V.
name: Hardy, K.
name: He, J.
name: Ito, M.
name: Jiang, L.
name: Kashy, D.
name: Khandaker, M.
name: Kingsberry, P.
name: Kolarkar, A.
name: Konchatnyi, M.
name: Korchin, A.
name: Korsch, W.
name: Kowalski, S.
name: Kubantsev, M.
name: Kubarovsky, V.
name: Li, X.
name: Martel, P.
name: Matveev, V.
name: Mecking, B.
name: Milbrath, B.
name: Minehart, R.
name: Miskimen, R.
name: Mochalov, V.
name: Mtingwa, S.
name: Overby, S.
name: Pasyuk, E.
name: Payen, M.
name: Pedroni, R.
name: Ritchie, B.
name: Rodrigues, T. E.
name: Salgado, C.
name: Shahinyan, A.
name: Sitnikov, A.
name: Sober, D.
name: Stepanyan, S.
name: Stephens, W.
name: Underwood, J.
name: Vasiliev, A.
name: Vishnyakov, V.
name: Wood, M.
name: Zhou, S.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: High precision measurements of the differential cross sections for $π^0$ photoproduction at forward angles for two nuclei, $^{12}$C and $^{208}$Pb, have been performed for incident photon energies of 4.9 - 5.5 GeV to extract the ${π^0 \to γγ}$ decay width. The experiment was done at Jefferson Lab using the Hall B photon tagger and a high-resolution multichannel calorimeter. The ${π^0 \to γγ}$ decay width was extracted by fitting the measured cross sections using recently updated theoretical models for the process. The resulting value for the decay width is $Γ{(π^0 \to γγ)} = 7.82 \pm 0.14 ~({\rm stat.}) \pm 0.17 ~({\rm syst.}) ~{\rm eV}$. With the 2.8% total uncertainty, this result is a factor of 2.5 more precise than the current PDG average of this fundamental quantity and it is consistent with current theoretical predictions.
description: 4 pages, 5 figures
Behavioral characterization of C. elegans homologs of Parkinson's disease associated genes
Creators: name: Knauft, Sara Marie
Publisher: name: University of British Columbia
Year: 2014

description: Parkinson’s disease (PD) is a neurodegenerative disorder of central nervous system affecting more than 10 million people globally. This disease has a strong genetic component with 14% of individuals with PD reporting a first-degree relative with the disease. While genes like PARK2 and PINK1 have been associated with familial early onset PD, LRRK2, DNAJC13, and VPS35 have been linked to idopathic PD. These genes are largely involved in the maintenance of mitochondria or in the quality control via the cellular machinery that degrades unneeded proteins. Mutations in these genes affect the function and survival of particular neurons in parts of the brain that regulate normal movement, balance, and coordination. One endophenotype of PD is abnormal habituation; habituation is a simple form of learning in which repeated stimulation causes a decrement in responding over time. By investigating how these PD associated genes are involved in habituation, we hope to better understand the underlying pathophysiology induced by these genetic differences. In this study mechanosensory habituation was examined in Caenorhabditis elegans (C.elegans; microscopic transparent roundworms) in both wild-type worms and in worms with mutations in homologues of genes implicated in PD. Each strain of mutant worms showed a unique combination of basal characteristics and habituation phenotypes that distinguished them from wild-type worms. The integrity of dopamine neurotransmission was also investigated using the SWIP assay and ON/OFF Food Habituation assay. The C. elegans homologue of the PD gene VPS35, vps-35, an essential component of the retromer complex, was found to display the characteristics of abnormal dopamine signaling and was chosen for additional testing. Experiments using channelrhodopsin confirmed a lower dopamine signaling phenotype, with overexpression and rescue strains of this mutant being created to further explore how this protein affects behavior. These experiments set the groundwork for using C. elegans as a genetic model of PD that can help us better understand this complicated neurological disorder.
Development of sustainable legume-based cropping and grassland systems and agri-food and feed chains
Creators: name: Barilli, Eleonora
name: Luna, Pedro
Publisher: name: Zenodo
Year: 2018

description: Research and development on legume cultivars adapted to Mediterranean agro-ecological conditions is significantly under-developed. There is therefore an urgent need to develop cultivars adapted to these drought prone environments. A collaborative farm-network is being created to promote grain legume cultivation in Mediterranean rain fed farming systems. The aim is to evaluate currently and previously grown grain legume cultivars and landraces for characteristics of importance to sustainable agriculture and to apply novel tools to integrate genetic resistance with other control practices in a concerted manner. Priority is given to the combination of increased yield and resistance to stresses and integrated management, thus allowing for the production of leguminous crops of high-value in crop rotations with low input and stable yields. Sixty-nine legume accessions belonging to 6 genera agronomically important under Mediterranean conditions (5 chickpea accessions, 8 grass peas (Lathyrus spp.) accessions, 16 lentil accessions, 6 white lupin accessions, 21 pea accessions and 13 faba bean accessions) have been sown in collaboration with local farmers under field conditions in 3 different locations. Zero or minimum external inputs were applied. From the beginning crops were periodically evaluated (at least once a week) for the following parameters: % of seeds germination, plant density, % of soil couverture, time to flowering, pods formation, pod ripening, plant maturity and harvesting, lodging and plant height and plant resistance to naturally occurring stresses. Plots were harvested, and plant biomass and seed production evaluated.
description: The information presented here has been thoroughly researched and is believed to be accurate and correct. However, the authors cannot be held legally responsible for any errors. There are no warranties, expressed or implied, made with respect to the information provided. The authors will not be liable for any direct, indirect, special, incidental or consequential damages arising out of the use or inability to use the content of this publication.
Simulating spin-charge separation with light
Creators: name: Angelakis, Dimitris G.
name: Huo, Mingxia
name: Kyoseva, Elica
name: kwek, Leong Chuan
Publisher: name: arXiv
Year: 2010
Subjects: subject: Quantum Physics (quant-ph)
subject: Quantum Gases (cond-mat.quant-gas)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: In this work we show that stationary light-matter excitations generated inside a hollow one-dimensional waveguide filled with atoms, can be made to generate a photonic two-component Lieb Liniger model. We explain how to prepare and drive the atomic system to a strongly interacting regime where spin-charge separation could be possible. We then proceed by explaining how to measure the corresponding effective spin and charge densities and velocities through standard optical methods based in measuring dynamically the emitted photon intensities or by analyzing the photon spectrum. The relevant interactions exhibit the necessary tunability both to generate and efficiently observe spin charge separation with current technology.
description: 4 pages. Comments welcome
Counter-dispersed slitless-spectroscopy technique: planetary nebula velocities in the halo of NGC 1399
Creators: name: McNeil, Emily
name: Arnaboldi, Magda
name: Freeman, Ken
name: Gerhard, Ortwin
name: Coccato, Lodovico
name: Das, Payel
Publisher: name: arXiv
Year: 2010
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Using a counter-dispersed slitless spectroscopy technique, we detect and measure the line-of-sight velocities of 187 planetary nebulae (PNe) around one of the nearest cD galaxies, NGC 1399, with FORS1 on the VLT. We describe the method for identifying and classifying the emission-line sources and the procedure for computing their J2000 coordinates and velocities. The number of PN detections and the errors in the velocity measurements (37 km/s indicate that this technique is comparable to other methods, such as that described by Teodorescu et al. (2005). We present the spatial distribution of the PNe and a basic analysis of their velocities. The PN two-dimensional velocity field shows marginal rotation consistent with other studies. We also find a low-velocity substructure in the halo and a flatter velocity-dispersion profile compared to previous observations that extends to ~400 arcsec. The detection of a low-velocity subcomponent underscores the importance of discrete velocity tracers for the detection of un-mixed components. The new velocity-dispersion profile is in good agreement with revised velocity dispersions for the red globular clusters in NGC 1399, using the data of Schuberth et al. (2009). The outer parts of this profile are consistent with one of the dynamical models of Kronawitter et al. (2000), which corresponds to a circular velocity of ~340 km/s and a rescaled B-band mass-to-light ratio of ~20 at 7' radius. These measurements trace the kinematics of the outer halo and disentangle the heterogenous populations in the Fornax Cluster core. The new data set the stage for a revised dynamical model of the outer halo of NGC 1399.
description: Already published in A&A. Please see published version for better quality figures
Kramers polarization in strongly correlated carbon nanotube quantum dots
Creators: name: Lim, Jong Soo
name: Lopez, Rosa
name: Giorgi, Gian Luca
name: Sanchez, David
Publisher: name: arXiv
Year: 2011
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Ferromagnetic contacts put in proximity with carbon nanotubes induce spin and orbital polarizations. These polarizations affect dramatically the Kondo correlations occurring in quantum dots formed in a carbon nanotube, inducing effective fields in both spin and orbital sectors. As a consequence, the carbon nanotube quantum dot spectral density shows a four-fold split SU(4) Kondo resonance. Furthermore, the presence of spin-orbit interactions leads to the occurrence of an additional polarization among time-reversal electronic states (polarization in the time-reversal symmetry or Kramers sector). Here, we estimate the magnitude for the Kramer polarization in realistic carbon nanotube samples and find that its contribution is comparable to the spin and orbital polarizations. The Kramers polarization generates a new type of effective field that affects only the time-reversal electronic states. We report new splittings of the Kondo resonance in the dot spectral density which can be understood only if Kramers polarization is taken into account. Importantly, we predict that the existence of Kramers polarization can be experimentally detected by performing nonlinear differential conductance measurements. We also find that, due to the high symmetry required to build SU(4) Kondo correlations, its restoration by applying an external field is not possible in contrast to the compensated SU(2) Kondo state observed in conventional quantum dots.
description: 8 pages, 4figures