cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Probabilità vuol dire forse
Creators: name: Rigato, Alessandra
Publisher: name: Scuola Universitaria della Svizzera Italiana (SUPSI)
Year: 2012

description: Il presente lavoro è un'analisi qualitativa delle conoscenze implicite degli allievi di prima media in merito al pensiero probabilistico: questo consiste nelle modalità di pensiero che permettono di analizzare situazioni di incertezza ed estende il pensiero deterministico che si basa sulla logica del vero o falso. L'analisi testuale rileva come gli allievi possiedano una buona conoscenza di alcuni aspetti quantitativi come frazioni e percentuali. Questi aspetti possono essere integrati in un approccio didattico che dia maggiore valenza semantica all'utilizzo appropriato di espressioni del tipo “sicuro al 100%” e “uno su cento” in contesti di vita quotidiana. È necessario lavorare per costruire il significato di alcuni aspetti probabilistici partendo dalle locuzioni utilizzate più frequentemente e consolidando sia le competenze operative di calcolo frazionario, sia la concettualizzazione degli aspetti di proporzionalità diretta. Per contro buona parte degli allievi non è a proprio agio in presenza di situazioni di incertezza. Molte delle affermazioni di certezza sono valutazioni di un alto grado di probabilità e l'incertezza viene spesso percepita come insicurezza nei calcoli o indecisione tra i due stati “vero o falso”. L'approfondimento di un discorso probabilistico risulta imprescindibile da un parallelo confronto con le modalità del pensiero deterministico.
Emergence of magnetism in graphene materials and nanostructures
Creators: name: Yazyev, Oleg V.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Materials Science (cond-mat.mtrl-sci)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Magnetic materials and nanostructures based on carbon offer unique opportunities for future technological applications such as spintronics. This article reviews graphene-derived systems in which magnetic correlations emerge as a result of reduced dimensions, disorder and other possible scenarios. In particular, zero-dimensional graphene nanofragments, one-dimensional graphene nanoribbons, and defect-induced magnetism in graphene and graphite are covered. Possible physical mechanisms of the emergence of magnetism in these systems are illustrated with the help of computational examples based on simple model Hamiltonians. In addition, this review covers spin transport properties, proposed designs of graphene-based spintronic devices, magnetic ordering at finite temperatures as well as the most recent experimental achievements.
description: tutorial-style review article -- 18 pages, 19 figures
Furoxan derivatives demonstrated in vivo efficacy by reducing Mycobacterium tuberculosis to undetectable levels in a mouse model of infection
Creators: name: de Souza, PC
name: Fernandes, GFS
name: Marino, LB
name: Ribeiro, CM
name: da Silva, PB
name: Chorilli, M
name: Silva, CSP
name: Resende, FA
name: Solcia, MC
name: de Grandis, RA
name: Costa, CAS
name: Cho, Sang Hyun
name: Wang, Y
name: Franzblau, Scott
name: dos Santos, JL
name: Pavan, FR
Publisher: name: University of Illinois at Chicago
Year: 2022
Subjects: Uncategorized

description: OBJECTIVES: The most recent survey conducted by the World Health Organization described Tuberculosis (TB) as one of the top 10 causes of death and the leading cause of death from a single infectious agent. The increasing number of TB-resistant cases has contributed to this scenario. In light of this, new strategies to control and treat the disease are necessary. Our research group has previously described furoxan derivatives as promising scaffolds to be explored as new antitubercular drugs. RESULTS: Two of these furoxan derivatives, (14b) and (14c), demonstrated a high selectivity against Mycobacterium tuberculosis. The compounds (14b) and (14c) were also active against a latent M. tuberculosis strain, with MIC90 values of 6.67 μM and 9.84 μM, respectively; they were also active against monoresistant strains (MIC90 values ranging from 0.61 to 20.42 μM) and clinical MDR strains (MIC90 values ranging from 3.09 to 42.95 μM). Time-kill experiments with compound (14c) showed early bactericidal effects that were superior to those of the first- and second-line anti-tuberculosis drugs currently used in therapy. The safety of compounds (14b) and (14c) was demonstrated by the Ames test because these molecules were not mutagenic under the tested conditions. Finally, we confirmed the safety, and high efficacy of compounds (14b) and (14c), which reduced M. tuberculosis to undetectable levels in a mouse aerosol model of infection. CONCLUSION: Altogether, we have identified two advanced lead compounds, (14b) and (14c), as novel promising candidates for the treatment of TB infection.
A Spitzer View of Star Formation in the Cygnus X North Complex
Creators: name: Beerer, I. M.
name: Koenig, X. P.
name: Hora, J. L.
name: Gutermuth, R. A.
name: Bontemps, S.
name: Megeath, S. T.
name: Schneider, N.
name: Motte, F.
name: Carey, S.
name: Simon, R.
name: Keto, E.
name: Smith, H. A.
name: Allen, L. E.
name: Fazio, G. G.
name: Kraemer, K. E.
name: Price, S.
name: Mizuno, D.
name: Adams, J. D.
name: Hernandez, J.
name: Lucas, P. W.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We present new images and photometry of the massive star forming complex Cygnus X obtained with IRAC and MIPS on the Spitzer Space Telescope. A combination of IRAC, MIPS, UKIDSS, and 2MASS data are used to identify and classify young stellar objects. Of the 8,231 sources detected exhibiting infrared excess in Cygnus X North, 670 are classified as Class I and 7,249 are classified as Class II. Using spectra from the FAST spectrograph at the Fred L. Whipple Observatory and Hectospec on the MMT, we spectrally typed 536 sources in the Cygnus X complex to identify the massive stars. We find that YSOs tend to be grouped in the neighborhoods of massive B stars (spectral types B0 to B9). We present a minimal spanning tree analysis of clusters in two regions in Cygnus X North. The fraction of infrared excess sources that belong to clusters with >10 members is found to be 50--70%. Most Class II objects lie in dense clusters within blown out HII regions, while Class I sources tend to reside in more filamentary structures along the bright-rimmed clouds, indicating possible triggered star formation.
description: 16 pages, 20 figures, 7 tables, Accepted for publication in the Astrophysical Journal
The B[e] phenomenon in the Milky Way and Magellanic Clouds
Creators: name: Miroshnichenko, Anatoly
name: Manset, Nadine
name: Polcaro, Francesco
name: Rossi, Corinne
name: Zharikov, Sergey
Publisher: name: arXiv
Year: 2010
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Discovered over 30 years ago, the B[e] phenomenon has not yet revealed all its puzzles. New objects that exhibit it are being discovered in the Milky Way, and properties of known objects are being constrained. We review recent findings about objects of this class and their subgroups as well as discuss new results from studies of the objects with yet unknown nature. In the Magellanic Clouds, the population of such objects has been restricted to supergiants. We present new candidates with apparently lower luminosities found in the LMC.
description: 5 pages, 2 figures, IAU Symposium 272, Active OB stars: structure, evolution, mass loss and critical limits
The High Time Resolution Universe Survey II: Discovery of 5 Millisecond Pulsars
Creators: name: Bates, S. D.
name: Bailes, M.
name: Bhat, N. D. R.
name: Burgay, M.
name: Burke-Spolaor, S.
name: D'Amico, N.
name: Jameson, A.
name: Johnston, S.
name: Keith, M. J.
name: Kramer, M.
name: Levin, L.
name: Lyne, A.
name: Milia, S.
name: Possenti, A.
name: Stappers, B.
name: van Straten, W.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We present the discovery of 5 millisecond pulsars found in the mid-Galactic latitude portion of the High Time Resolution Universe (HTRU) Survey. The pulsars have rotational periods from ~2.3 to ~7.5 ms, and all are in binary systems with orbital periods ranging from ~0.3 to ~150 d. In four of these systems, the most likely companion is a white dwarf, with minimum masses of ~0.2 Solar Masses. The other pulsar, J1731-1847, has a very low mass companion and exhibits eclipses, and is thus a member of the "black widow" class of pulsar binaries. These eclipses have been observed in bands centred near frequencies of 700, 1400 and 3000 MHz, from which measurements have been made of the electron density in the eclipse region. These measurements have been used to examine some possible eclipse mechanisms. The eclipse and other properties of this source are used to perform a comparison with the other known eclipsing and "black widow" pulsars. These new discoveries occupy a short-period and high-dispersion measure (DM) region of parameter space, which we demonstrate is a direct consequence of the high time and frequency resolution of the HTRU survey. The large implied distances to our new discoveries makes observation of their companions unlikely with both current optical telescopes and the Fermi Gamma-ray Space Telescope. The extremely circular orbits make any advance of periastron measurements highly unlikely. No relativistic Shapiro delays are obvious in any of the systems, although the low flux densities would make their detection difficult unless the orbits were fortuitously edge-on.
description: 11 pages, 5 figures, 4 tables, for publication in MNRAS
Coarse Graining RNA Nanostructures for Molecular Dynamics Simulations
Creators: name: Paliy, Maxim
name: Melnik, Roderick
name: Shapiro, Bruce A.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Quantitative Methods (q-bio.QM)
subject: Biological Physics (physics.bio-ph)
subject: Biomolecules (q-bio.BM)
subject: FOS: Biological sciences
subject: FOS: Physical sciences

description: A series of coarse-grained models have been developed for the study of the molecular dynamics of RNA nanostructures. The models in the series have one to three beads per nucleotide and include different amounts of detailed structural information. Such a treatment allows us to reach, for the systems of thousands of nucleotides, a time scale of microseconds (i.e. by three orders of magnitude longer than in the full atomistic modelling) and thus to enable simulations of large RNA polymers in the context of bionanotechnology. We find that the 3-beads-per-nucleotide models, described by a set of just a few universal parameters, are able to describe different RNA conformations and are comparable in structural precision to the models where detailed values of the backbone P-C4' dihedrals taken from a reference structure are included. These findings are discussed in the context of the RNA conformation classes.
Single-cycle exhaust soot measurement from internal combustion engines
Creators: name: Kheirkhah, Pooyan
Publisher: name: University of British Columbia
Year: 2020

description: The black carbon particulate matter (soot) emissions from internal combustion engines have negative health and climate impacts. PM emissions are typically characterized with modest temporal resolutions; however, in-cylinder investigations have demonstrated significant variability and the importance of individual cycles. Detecting such variations in the exhaust requires measurements close to the exhaust valve, which are not possible with the current sensors. Here, a methodology for characterizing the cycle-specific PM concentration at the exhaust-port of a single-cylinder research engine is developed using a light-scattering sensor, the Fast Exhaust Nephelometer (FEN). The FEN light scattering is converted to soot mass concentration (Cₘ) and mass-mean mobility diameter (dm,g) using an inversion algorithm based on the Rayleigh-Debye-Gans model for fractal aggregates (RDGFA). The model incorporates the external mixing hypothesis (EMH) to correlate the diameter of primary particles with the aggregates. The inversion parameters are obtained from Transmission Electron Microscopy (TEM) and literature, resulting in Cₘ and dm,g that are within ±10% of the reference methods. The results could vary by ±40% due to uncertainties in the RDGFA parameters; however, by incorporating the EMH morphology model, the variations are reduced to within ~ ±25% of the reference measurements. The response time of the FEN, determined from a “skip-fired” scheme by disabling the fuel injection, is on average 55 ms. This is well below the engine cycle period (~100 ms) for the considered engine speeds. A cycle-specific PM mass averaging method was developed based on the characteristics of the exhaust-port signals. Using this cycle-resolved method, it is shown that the cycle-to-cycle coefficient of variation of Cₘ is 40%, while the in-cylinder gross indicated mean effective pressure (GIMEP) varies by 2%. Despite their different ranges of variation, the cycle-specific Cₘ and GIMEP are negatively correlated with R² ~ 0.2-0.7, where cycles with low GIMEP emit more soot. The physical causes of this association deserve further investigation, but are expected to be caused by local fuel-air mixing effects. The methods and findings of this work can further our understanding of the engine variability under transient conditions, and assist the interpretation of the in-cylinder variations observed in optical engine experiments.
¿Cómo guardar búsquedas, crear alertas y compartir informes?
Creators: name: Engineering, Altmetric
Publisher: name: Altmetric
Year: 2022
Subjects: Uncategorized

description: Utilice esta guía para aprender a guardar búsquedas, configurar alertas por correo electrónico y crear informes para compartir en Altmetric Explorer.
Sharp upper bounds of the Betti numbers for a given Hilbert polynomial
Creators: name: Caviglia, Giulio
name: Murai, Satoshi
Publisher: name: arXiv
Year: 2010
Subjects: subject: Commutative Algebra (math.AC)
subject: FOS: Mathematics
subject: 13D02, 13D40

description: We show that there exists a saturated graded ideal in a standard graded polynomial ring which has the largest total Betti numbers among all saturated graded ideals for a fixed Hilbert polynomial.
description: 43 pages
The Saga of Landau-Gauge Propagators: Gathering New Ammo
Creators: name: Cucchieri, Attilio
name: Mendes, Tereza
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: Compelling evidence has recently emerged from lattice simulations in favor of the massive solution of the Schwinger-Dyson equations of Landau-gauge QCD. The main objections to these lattice results are based on possible Gribov-copy effects. We recently installed at IFSC-USP a new GPU cluster dedicated to the study of Green's functions. We present here our point of view on the Saga and the status of our project. We also show data for the 2D case on a 2560^2 lattice.
description: 3 pages, 1 figure; talk presented at the conference "Quark Confinement and the Hadron Spectrum IX", Madrid (Spain)
¿Cómo buscar en el Explorador de Altmetric?: Una guía introductoria para las instituciones
Creators: name: Engineering, Altmetric
Publisher: name: Altmetric
Year: 2022
Subjects: Uncategorized

description: Explorer para instituciones: esta guía proporciona una introducción sobre cómo navegar por Altmetric Explorer y cómo guardar sus búsquedas y compartir informes.
ІННОВАЦІЙНІ ПІДХОДИ ДО ФОРМУВАННЯ ПРОФЕСІЙНИХ КОМПЕТЕНТНОСТЕЙ ЮРИСТІВ
Creators: name: Kostruba, Anatoliy
Publisher: name: figshare
Year: 2020
Subjects: subject: 130306 Educational Technology and Computing
subject: FOS: Educational sciences
subject: 170103 Educational Psychology
subject: FOS: Psychology
subject: 130304 Educational Administration, Management and Leadership
subject: Education
subject: 130199 Education systems not elsewhere classified
subject: 160809 Sociology of Education
subject: FOS: Sociology
subject: 139999 Education not elsewhere classified
subject: 160506 Education Policy
subject: FOS: Political science
subject: 130103 Higher Education
subject: 180121 Legal Practice, Lawyering and the Legal Profession
subject: FOS: Law
subject: 189999 Law and Legal Studies not elsewhere classified

description: Дослідження основних підходів до змісту професійної юридичної освіти свідчить про те, що на сучасному етапі в практиці викладання, в організації комунікативної підготовки студентів-юристів домінує фрагментарний підхід. У процесі навчання студентів основна увага має приділятися професійним предметним знанням. Недостатня практична підготовка лежить в основі невдач при вирішенні професійних навчальних завдань. Це пов’язано з тим, що зазначений аспект професійної підготовки юристів не розглядається в якості інваріативної форми набуття знань. Досвід засвідчив, що рівень компетентностей здобувача за результатами навчання на певному рівні вищої освіти не відповідає очікуванню професійного співтовариства і сучасним викликам у суспільстві.Наведене вимагає актуалізації питання модернізації освітніх процесів в напряму формування компетентністно орієнтованого навчання і виховання професійного юриста в світлі його діалогово-дискусійної та лінгвоінтенсивної професійної діяльності.Оскільки здійснення юридичної діяльності юриста базується на комунікативній основі і вимагає добре розвинених комунікативних навичок, то відповідно вся організація професійної підготовки здобувана повинна здійснюватися на комунікативній основі, бо саме за цієї умови можливо, з одного боку, сформувати мотивацію до освоєння студентами-юристами мовних знань як професійно значущих, з іншого боку, забезпечити максимальне зближення опанування юридичними і мовними навичками.Інноваційні процеси у сфері професійної освіти студентів правових спеціальностей виражаються в запроваджені нових форм навчання. Такими формами є діяльність юридичних клінік, мета яких полягає в практичній підготовці студентів до їх майбутньої практичної юридичної діяльності.
СИНГУЛЯРНІСТЬ ПРИРОДИ ЮРИДИЧНОЇ ОСОБИ
Creators: name: Kostruba, Anatoliy
Publisher: name: figshare
Year: 2020
Subjects: subject: 180121 Legal Practice, Lawyering and the Legal Profession
subject: FOS: Law
subject: Law
subject: 180104 Civil Law and Procedure
subject: 180109 Corporations and Associations Law

description: Поділ юридичних осіб на осіб приватного права і публічного права є розвитком концепції дихотомії приватно і публічного в праві. Не заперечуючи поділ права на приватне і публічне зазначимо, що наведений аспект питання, на наше переконання, формулює бінарне бачення природи юридичної особи.Так, за логікою статті 81 Цивільного кодексу України юридична особа має диференційовану правосуб’єктність в праві приватному і публічному. 50 При цьому з урахуванням природи поділу права на право приватне і право публічне, очевидним є варіативність наповнення змісту конструкції юридичної особи. Отже ми маємо розуміння юридичної особи в приватному праві відмінне від сутності юридичної особи в праві публічному.В наведеному аспекті слід зазначити, що само розуміння юридичної особи публічного права або юридичної особи в публічному праві має внутрішні суперечності. Правова конструкція юридичної особи створена для забезпечення цивільного обороту. Об’єднання інтересу або капіталу осіб призвело до створення фікції, яка реалізує власну волю і виступає в цивільному обороті від свого імені. Її активність інтерполюється через ознаки: організаційної єдності, відокремленості майна, самостійної юридичної відповідальності та автономності участі в цивільному обороті. Не викликає сумніву, що вказаними ознаками юридична особа публічного права не може бути наділена. І це зрозуміло, отже в публічному праві його суб’єкту, для реалізації власної компетенції статус юридичної особи не потрібний. Прикладом цьому є Верховна Рада України або Кабінет Міністрів України.Наведене не дозволяє стверджувати, про існування в цивільному праві особливого суб’єкта – юридичної особи публічного права або юридичної особи приватного права відмінної від юридичної особи приватного права. Як зазначено вище, юридична особа – носій предметно-практичної діяльності, сукупна єдність волі, інтересу та капіталу персоніфікованих осіб, яка скерована на досягнення визначеної мети діяльності. Її природа має сингулярний характер.Отже доцільним є не стільки поділ юридичних осіб на осіб приватного і публічного права, скільки класифікація функцій юридичних осіб відносно характеру правовідносин, в яких вони є учасниками. Такий підхід виключає деформацію цивілістичної природи юридичної особи, концентруючи увагу на характері тих функцій (приватно-правових або публічно-правових) які юридична особа реалізує в конкретних правовідносинах.Підтвердженням цієї тези є численна судова практика. Так, в одній із своїх постанов Велика Палата Верховного Суду (Постанова Великої Палати Верховного Суду від 07 серпня 2019 року по справі №826/4264/17)
A Naturally Large Four-Point Function in Single Field Inflation
Creators: name: Senatore, Leonardo
name: Zaldarriaga, Matias
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Non-Gaussianities of the primordial density perturbations have emerged as a very powerful possible signal to test the dynamics that drove the period of inflation. While in general the most sensitive observable is the three-point function in this paper we show that there are technically natural inflationary models where the leading source of non-Gaussianity is the four-point function. Using the recently developed Effective Field Theory of Inflation, we are able to show that it is possible to impose an approximate parity symmetry and an approximate continuos shift symmetry on the inflaton fluctuations that allow, when the dispersion relation is of the form $ω\sim c_s k$, for a unique quartic operator, while approximately forbidding all the cubic ones. The resulting shape for the four-point function is unique. In the models where the dispersion relation is of the form $ω\sim k^2/M$ a similar construction can be carried out and additional shapes are possible.
description: 13 pages, 1 figure. v2: extended discussion on near-de-Sitter models
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titleType: Subtitle
title: Promotional support of noise insulation products on the Spanish market (on the example of LLC "StandartplastÂ»)
Creators: name: ÐÐ²Ð°Ð½Ð¾Ð²Ð°, ÐÑÐµÐ½Ð¸Ñ
Publisher: name: Ð¡Ð°Ð½ÐºÑ-ÐÐµÑÐµÑÐ±ÑÑÐ³ÑÐºÐ¸Ð¹ Ð¿Ð¾Ð»Ð¸ÑÐµÑÐ½Ð¸ÑÐµÑÐºÐ¸Ð¹ ÑÐ½Ð¸Ð²ÐµÑÑÐ¸ÑÐµÑ ÐÐµÑÑÐ° ÐÐµÐ»Ð¸ÐºÐ¾Ð³Ð¾
Year: 2019
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marketing
international marketing
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noise cancellation
promotion

description: Ð Ð´Ð°Ð½Ð½Ð¾Ð¹ ÑÐ°Ð±Ð¾ÑÐµ Ð¿ÑÐ¾Ð°Ð½Ð°Ð»Ð¸Ð·Ð¸ÑÐ¾Ð²Ð°Ð½Ð° Ð¼Ð°ÑÐºÐµÑÐ¸Ð½Ð³Ð¾Ð²Ð°Ñ Ð°ÐºÑÐ¸Ð²Ð½Ð¾ÑÑÑ ÐºÐ¾Ð¼Ð¿Ð°Ð½Ð¸Ð¸ Ð¡ÑÐ°Ð½Ð´Ð°ÑÑÐ¿Ð»Ð°ÑÑ Ð½Ð° Ð¼ÐµÐ¶Ð´ÑÐ½Ð°ÑÐ¾Ð´Ð½Ð¾Ð¼ ÑÑÐ½ÐºÐµ. ÐÑÐ¾Ð²ÐµÐ´ÐµÐ½ Ð°Ð½Ð°Ð»Ð¸Ð· ÐºÐ¾Ð½ÐºÑÑÐµÐ½ÑÐ¾Ð² Ð¸ Ð¿Ð¾ÑÑÐµÐ±Ð¸ÑÐµÐ»ÑÑÐºÐ¸Ñ Ð¿ÑÐµÐ´Ð¿Ð¾ÑÑÐµÐ½Ð¸Ð¹, Ð´Ð°Ð½Ð¾ Ð¾Ð¿ÑÐµÐ´ÐµÐ»ÐµÐ½Ð¸Ðµ Ð¿Ð¾Ð½ÑÑÐ¸Ñ ÑÐµÐºÐ»Ð°Ð¼Ð°. ÐÑÐ²ÐµÐ´ÐµÐ½Ñ Ð½Ð°Ð¸Ð±Ð¾Ð»ÐµÐµ ÑÑÑÐµÐºÑÐ¸Ð²Ð½ÑÐµ online Ð¸ offline ÐºÐ°Ð½Ð°Ð»Ñ Ð¿ÑÐ¾Ð´Ð²Ð¸Ð¶ÐµÐ½Ð¸Ñ ÑÑÐ¼Ð¾Ð¸Ð·Ð¾Ð»ÑÑÐ¸Ð¾Ð½Ð½ÑÑ Ð¼Ð°ÑÐµÑÐ¸Ð°Ð»Ð¾Ð² Ð½Ð° ÑÑÐ½ÐºÐµ ÐÑÐ¿Ð°Ð½Ð¸Ð¸. Ð Ð°Ð·ÑÐ°Ð±Ð¾ÑÐ°Ð½ Ð½Ð°Ð±Ð¾Ñ ÐºÐ¾Ð½ÐºÑÐµÑÐ½ÑÑ ÑÐµÐºÐ¾Ð¼ÐµÐ½Ð´Ð°ÑÐ¸Ð¹ Ð¿Ð¾ Ð¿ÑÐ¾Ð´Ð²Ð¸Ð¶ÐµÐ½Ð¸Ñ Ñ ÑÑÐµÑÐ¾Ð¼ Ð¾ÑÐ¾Ð±ÐµÐ½Ð½Ð¾ÑÑÐµÐ¹ Ð±ÑÐ´Ð¶ÐµÑÐ°.
description: This thesis analyzes the marketing activity of Standartplast in the international market. An analysis of competitors and consumer preferences was conducted. The definition was given to the concept of "advertising". The most effective online and offline channels for the promotion of sound insulating materials on the Spanish market were launched. A set of specific recommendations for the advancement of allowing for the budget was developed.
JUDO:GIRL POWER Campagna di sensibilizzazione sul judo indirizzata alle ragazze
Creators: name: Lacaria, Serena
Publisher: name: Scuola Universitaria della Svizzera Italiana (SUPSI)
Year: 2019

description: Attraverso il mio lavoro di tesi, ho voluto creare un sistema di comunicazione visiva che sensibilizzasse, informasse e al tempo stesso promuovesse il judo. Tutti gli artefatti che sono stati progettati svolgono la funzione di informare e sensibilizzare le ragazze. Sono stati prodotti quattro video con diverse ragazze che hanno praticato o che ancora oggi praticano judo. Queste ragazze, raccontano la loro esperienza in questo sport, offrendo una agile visione sulla loro storia ed esperienza quali praticanti di judo e sugli stereotipi odierni. Lo scopo dei video è quello di invitare le ragazze a pensare che non esistono sport da maschi o da femmine, ma che ognuno è libero di scegliere ciò che lo appassiona senza avere paura dei pregiudizi. Sono stati progettati anche manifesti, volantini e un sito web per avere una panoramica generale della campagna di sensibilizzazione. Tutti gli artefatti sono stati sviluppati seguendo un’identità visiva realizzata ad hoc.
Non-Abelian vortex dynamics: Effective world-sheet action
Creators: name: Gudnason, Sven Bjarke
name: Jiang, Yunguo
name: Konishi, Kenichi
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The low-energy vortex effective action is constructed in a wide class of systems in a color-flavor locked vacuum, which generalizes the results found earlier in the context of U(N) models. It describes the weak fluctuations of the non-Abelian orientational moduli on the vortex worldsheet. For instance, for the minimum vortex in SO(2N) x U(1) or USp(2N) x U(1) gauge theories, the effective action found is a two-dimensional sigma model living on the Hermitian symmetric spaces SO(2N)/U(N) or USp(2N)/U(N), respectively. The fluctuating moduli have the structure of that of a quantum particle state in spinor representations of the GNO dual of the color-flavor SO(2N) or USp(2N) symmetry, i.e. of SO(2N) or of SO(2N+1). Applied to the benchmark U(N) model our procedure reproduces the known CP(N-1) worldsheet action; our recipe allows us to obtain also the effective vortex action for some higher-winding vortices in U(N) and SO(2N) theories.
description: LaTeX, 25 pages, 0 figures
Forest structure for avian conservation using multi-scale remote sensing data in Newfoundland
Creators: name: Herniman, Samuel
Publisher: name: University of British Columbia
Year: 2020

description: The diversity of forest birds has long been linked to forest structure. Forest structure can be quantified by remote sensing with airborne laser scanning (ALS). To date, ALS based wildlife monitoring studies have been limited in geographic scope, principally due to limited aerial coverage of the ALS datasets. This thesis first assesses the ability of ALS and other remote sensing and geospatial datasets to estimate bird occurrence over a focus site of boreal forest in Newfoundland, Canada and then develops an approach to extend predictions of bird occurrence in areas that have no ALS coverage. To do so, I developed models using best subset regression of avian habitat suitability using ALS data acquired in Newfoundland, Canada. Model data included plot surveys, multispectral information, topographic, landscape, climatic and ALS datasets. While field plot metrics outperformed remote sensing metrics from a single sensor; models combining ALS, multispectral and/or environmental data, were most significant. Given the models were developed in highly managed areas of boreal forest, the results suggest these approaches can help monitor the environmental impacts of management decisions and climate change on biodiversity. Second, I used discontinuous ALS and spectral time series from Landsat to predict wall- to-wall structural metrics across Newfoundland. Three forest structural metrics (kurtosis, height and understory) were selected as strong predictors of avian habitat quality. Using imputation approaches, I extended these structural metrics over the entirety of Newfoundland with results indicating kurtosis was not predicted accurately (r 2 =0.08) when compared to independent ALS data, however, height (r 2 =0.43) and understory (r 2 =0.37) showed strong correlations. Using a random forests modelling approach, I produced habitat suitability models to predict the occurrence of nine bird iv species using citizen science data from eBird and provincial permanent sample plots (PSPs). All species had higher area under the receiver operator curve values using eBird data (min=0.73, median=0.85, max=0.91) compared to PSP data (min=0.52, median=0.60, max=0.71), demonstrating the strength of citizen science data. Overall, the results demonstrate structural metrics from ALS, combined with avian observations from forest plots and citizen science data can produce accurate predictions of avian occurrence and abundance over large areas.
КОДЕКС УКРАЇНИ З ПРОЦЕДУР БАНКРУТСТВА: ДЕЯКІ ПИТАННЯ ПРАВОЗАСТОСУВАННЯ
Creators: name: Kostruba, Anatoliy
Publisher: name: figshare
Year: 2020
Subjects: subject: 180121 Legal Practice, Lawyering and the Legal Profession
subject: FOS: Law
subject: 180107 Conflict of Laws (Private International Law)
subject: Law
subject: 180199 Law not elsewhere classified
subject: 180104 Civil Law and Procedure
subject: 180105 Commercial and Contract Law
subject: 180112 Equity and Trusts Law

description: Верховною Радою України, 18 жовтня 2018 року, прийнято Кодекс України з процедур банкрутства, яким встановлюються умови та порядок відновлення платоспроможності боржника-юридичної особи або визнання його банкрутом з метою задоволення вимог кредиторів, а також відновлення платоспроможності фізичної особи.Одночасно в юридичному науковому середовище виникла дискусія щодо цього правового акту, яка проходить за двома основними напрямками. Переважна частина вчених висловлюються проти прийняття Кодексу України з процедур банкрутства, оскільки відносини з відновлення платоспроможності, на їх думку, не є великою самостійною групою однорідних відносин, тому не потребують кодифікації з точки зору юридичної техніки. Інші дослідників зауважують, що прийняттям Кодексу України з процедур банкротства не досягнуто мети його створення. Слід зазначити, що прийнятий кодифікований акт має також величезну кількість прибічників не тільки серед вчених, але й практикуючих юристів. Отже, основний дискурс цього питання формується навколо загальнотеоретичних питань, позбавлених матеріально-правового контексту та прикладної складової. Обраний, на нашу думку хибний, напрямок дослідження місця та ролі кодифікованого акту в системі національного законодавства не може бути залишений поза увагою боку вчених цивілістів. Отже виникле питання висловити власні міркування з окресленої проблематиці.Запропоновані Кодексом України з питань банкрутства, положення щодо ліквідації зайвих бар’єрів та спрощення доступу до процедур, зокрема, самого боржника, збільшення можливостей для санації та створення ефективних механізмів позасудового врегулювання, покращення умов участі у процедурах банкрутства забезпечених кредиторів та підвищення рівню захищеності прав усіх кредиторів, скорочення строків розгляду справ, зокрема, за рахунок зменшення кількості оскаржень мають виключно декларативний характер. Головна ідея прийняття кодифікованого акту полягає в запроваджені, в цивільно-правову матерію, інституту неплатоспроможності фізичної особи. Через законодавче визначені складні процесуальні механізми реструктуризації боргів фізичної особи, введення процедури їх погашення досягається наслідок, при вірній постановці юридичного процесу, звільнення фізичної особи від них.
The Retrospective Roles of Black Women in the Coddling of Black Boys
Creators: name: Jefferson, Olivia S.
name: Watkins, Daphne C.
name: Mitchell, Jamie A.
Publisher: name: Routledge
Year: 2016
Subjects: subject: Black children
subject: coddling
subject: gender differences
subject: parenting
subject: raising and rearing
subject: Social Work
subject: FOS: Sociology
subject: Social Sciences

description: This study reports the secondary analysis of a theme that emerged from a larger study on Black women’s perceptions of Black men’s depression. This emerging theme was concerning the role of Black women in rearing Black boys. Eight focus groups with Black women (N = 46) were used to further explore this theme. Our secondary analysis identified three subthemes, including the (a) presence (or absence) of fathers in parenting Black children, (b) Black women’s role in coddling Black boys, and (c) Black women’s role in “raising” Black girls. Study implications include the contextual lens that underscores parenting variations within Black families.
Does a ferromagnet with spin-dependent masses produce a spin-filtering effect in a ferromagnetic/insulator/superconductor junction?
Creators: name: Annunziata, Gaetano
name: Cuoco, Mario
name: Gentile, Paola
name: Romano, Alfonso
name: Noce, Canio
Publisher: name: arXiv
Year: 2011
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We analyze charge transport through a ballistic ferromagnet/insulator/superconductor junction by means of the Bogoliubov-de Gennes equations. We take into account the possibility that ferromagnetism in the first electrode may be driven by a mass renormalization of oppositely polarized carriers, i.e. by a spin bandwidth asymmetry, rather than by a rigid splitting of up-and down-spin electron bands as in a standard Stoner ferromagnet. By evaluating the averaged charge conductance for both an s- and a $d_{x^2-y^2}$-wave order parameter for the S side, we show that the mass mismatch in the ferromagnetic electrode may mimic a spin active barrier. Indeed, in the $s$-wave case we show that under suitable conditions the spin dependent conductance of minority carriers below the energy gap $Δ_0$ can be larger than for majority carriers, and lower above $Δ_0$. On the other hand, for a d_{x^2-y^2}-wave superconductor similar spin-dependent effects give rise to an asymmetric peak splitting in the conductance. These results suggest that the junction may work as a spin-filtering device.
description: 7 pages, 5 figures
title: Ð¤Ð¾ÑÐ¼Ð° ÑÑÐ°ÑÑÐ¸Ñ Ð½Ð°ÑÐµÐ»ÐµÐ½Ð¸Ñ Ð² Ð¾ÑÑÑÐµÑÑÐ²Ð»ÐµÐ½Ð¸Ð¸ Ð¼ÐµÑÑÐ½Ð¾Ð³Ð¾ ÑÐ°Ð¼Ð¾ÑÐ¿ÑÐ°Ð²Ð»ÐµÐ½Ð¸Ñ
title: Ð²ÑÐ¿ÑÑÐºÐ½Ð°Ñ ÐºÐ²Ð°Ð»Ð¸ÑÐ¸ÐºÐ°ÑÐ¸Ð¾Ð½Ð½Ð°Ñ ÑÐ°Ð±Ð¾ÑÐ° Ð±Ð°ÐºÐ°Ð»Ð°Ð²ÑÐ°
titleType: Subtitle
title: Form of participation of the population in the implementation of local self-government
Creators: name: Ð¡ÑÐ´Ð°ÐºÐ¾Ð²Ð°, ÐÐ¾Ð»Ð¸Ð½Ð°
Publisher: name: Ð¡Ð°Ð½ÐºÑ-ÐÐµÑÐµÑÐ±ÑÑÐ³ÑÐºÐ¸Ð¹ Ð¿Ð¾Ð»Ð¸ÑÐµÑÐ½Ð¸ÑÐµÑÐºÐ¸Ð¹ ÑÐ½Ð¸Ð²ÐµÑÑÐ¸ÑÐµÑ ÐÐµÑÑÐ° ÐÐµÐ»Ð¸ÐºÐ¾Ð³Ð¾
Year: 2023
Subjects: Ð¼ÐµÑÑÐ½Ð¾Ðµ ÑÐ°Ð¼Ð¾ÑÐ¿ÑÐ°Ð²Ð»ÐµÐ½Ð¸Ðµ
Ð½Ð°ÑÐµÐ»ÐµÐ½Ð¸Ðµ
Ð½ÐµÐ¿Ð¾ÑÑÐµÐ´ÑÑÐ²ÐµÐ½Ð½Ð°Ñ Ð´ÐµÐ¼Ð¾ÐºÑÐ°ÑÐ¸Ñ
ÑÐ¾ÑÐ¼Ñ ÑÑÐ°ÑÑÐ¸Ñ
Ð²Ð·Ð°Ð¸Ð¼Ð¾Ð´ÐµÐ¹ÑÑÐ²Ð¸Ðµ
local self-government
population
direct democracy
forms of participation
interaction

description: ÐÐ°Ð½Ð½Ð°Ñ ÑÐ°Ð±Ð¾ÑÐ° Ð¿Ð¾ÑÐ²ÑÑÐµÐ½Ð° Ð¸Ð·ÑÑÐµÐ½Ð¸Ñ Ð²Ð¾Ð¿ÑÐ¾ÑÐ¾Ð², ÑÐ²ÑÐ·Ð°Ð½Ð½ÑÑ Ñ ÑÑÐ°ÑÑÐ¸ÐµÐ¼ Ð½Ð°ÑÐµÐ»ÐµÐ½Ð¸Ñ Ð² Ð¾ÑÑÑÐµÑÑÐ²Ð»ÐµÐ½Ð¸Ð¸ Ð¼ÐµÑÑÐ½Ð¾Ð³Ð¾ ÑÐ°Ð¼Ð¾ÑÐ¿ÑÐ°Ð²Ð»ÐµÐ½Ð¸Ñ. ÐÐ°Ð´Ð°ÑÐ¸, ÐºÐ¾ÑÐ¾ÑÑÐµ ÑÐµÑÐ°Ð»Ð¸ÑÑ Ð² ÑÐ¾Ð´Ðµ Ð¸ÑÑÐ»ÐµÐ´Ð¾Ð²Ð°Ð½Ð¸Ñ: 1. ÐÐ·ÑÑÐµÐ½Ð¸Ðµ Ð½Ð¾ÑÐ¼Ð°ÑÐ¸Ð²Ð½Ð¾-Ð¿ÑÐ°Ð²Ð¾Ð²ÑÑ Ð¾ÑÐ½Ð¾Ð², Ð² ÑÑÐµÑÐµ Ð²Ð·Ð°Ð¸Ð¼Ð¾Ð´ÐµÐ¹ÑÑÐ²Ð¸Ñ Ð¼ÐµÑÑÐ½Ð¾Ð³Ð¾ ÑÐ°Ð¼Ð¾ÑÐ¿ÑÐ°Ð²Ð»ÐµÐ½Ð¸Ñ Ð¸ Ð½Ð°ÑÐµÐ»ÐµÐ½Ð¸Ñ. 2. Ð£ÑÑÐ°Ð½Ð¾Ð²Ð»ÐµÐ½Ð¸Ðµ ÑÐ¾ÑÐ¼ ÑÑÐ°ÑÑÐ¸Ñ Ð½Ð°ÑÐµÐ»ÐµÐ½Ð¸Ñ Ð² Ð¾ÑÑÑÐµÑÑÐ²Ð»ÐµÐ½Ð¸Ð¸ Ð¼ÐµÑÑÐ½Ð¾Ð³Ð¾ ÑÐ°Ð¼Ð¾ÑÐ¿ÑÐ°Ð²Ð»ÐµÐ½Ð¸Ñ Ð¸ Ð¾Ð¿Ð¸ÑÐ°Ð½Ð¸Ðµ Ð¸Ñ Ð¾ÑÐ¾Ð±ÐµÐ½Ð½Ð¾ÑÑÐµÐ¹. 3. ÐÐ°ÑÐ¾Ð¶Ð´ÐµÐ½Ð¸Ðµ Ð¿ÑÑÐµÐ¹ ÑÐ°Ð·Ð²Ð¸ÑÐ¸Ñ Ð¼ÐµÑÑÐ½Ð¾Ð³Ð¾ ÑÐ°Ð¼Ð¾ÑÐ¿ÑÐ°Ð²Ð»ÐµÐ½Ð¸Ñ Ð² Ð Ð¾ÑÑÐ¸Ð¹ÑÐºÐ¾Ð¹ Ð¤ÐµÐ´ÐµÑÐ°ÑÐ¸Ð¸. Ð ÑÐµÐ·ÑÐ»ÑÑÐ°ÑÐµ Ð¸ÑÑÐ»ÐµÐ´Ð¾Ð²Ð°Ð½Ð¸Ñ Ð±ÑÐ»Ð¾ ÑÑÑÐ°Ð½Ð¾Ð²Ð»ÐµÐ½Ð¾, ÑÑÐ¾ ÑÐ¾ÑÐ¼Ñ ÑÑÐ°ÑÑÐ¸Ñ Ð½Ð°ÑÐµÐ»ÐµÐ½Ð¸Ñ Ð² Ð¼ÐµÑÑÐ½Ð¾Ð¼ ÑÐ°Ð¼Ð¾ÑÐ¿ÑÐ°Ð²Ð»ÐµÐ½Ð¸Ð¸ Ð¼Ð¾Ð³ÑÑ Ð±ÑÑÑ ÑÐ°Ð·Ð»Ð¸ÑÐ½ÑÐ¼Ð¸: Ð¾Ñ Ð¿ÑÑÐ¼Ð¾Ð³Ð¾ Ð³Ð¾Ð»Ð¾ÑÐ¾Ð²Ð°Ð½Ð¸Ñ Ð½Ð° Ð²ÑÐ±Ð¾ÑÐ°Ñ Ð´Ð¾ Ð¾Ð±ÑÐ°ÑÐµÐ½Ð¸Ñ ÑÐµÑÐµÐ· Ð¸Ð½ÑÐµÑÐ½ÐµÑ-Ð¿Ð»Ð°ÑÑÐ¾ÑÐ¼Ñ Ð¸ ÑÑÐ°ÑÑÐ¸Ñ Ð² Ð¾Ð±ÑÐµÑÑÐ²ÐµÐ½Ð½ÑÑ ÑÐ»ÑÑÐ°Ð½Ð¸ÑÑ.
description: This work is dedicated to studying the issues related to the populations participation in local self-government. The following tasks were solved during the research: 1. Studying the legal framework for the interaction between local self-government and the population. 2. Establishing forms of population participation in local self-government implementation and describing their features. 3. Finding ways of developing local self-government in the Russian Federation. The research has shown that forms of population participation in local self-government can be diverse, ranging from direct voting in elections to using online platforms and participating in public hearings.
Additional file 3 of Ustekinumab trough concentration affects clinical and endoscopic outcomes in patients with refractory Crohn’s disease: a Chinese real-world study
Creators: name: Yao, Jia-yin
name: Zhang, Min
name: Wang, Wei
name: Peng, Xiang
name: Zhao, Jun-zhang
name: Liu, Tao
name: Li, Zhi-wei
name: Sun, Hai-tian
name: Hu, Pinjin
name: Zhi, Min
Publisher: name: figshare
Year: 2021
Subjects: subject: Medicine
subject: Cell Biology
subject: Pharmacology
subject: Biotechnology
subject: Chemical Sciences not elsewhere classified
subject: Sociology
subject: FOS: Sociology
subject: Immunology
subject: FOS: Clinical medicine
subject: Cancer

description: Additional file 3. Clinical and endoscopic outcomes in patients with different Ustekinumab administration interval.
High Resolution Optical Spectra of HBC 722 after Outburst
Creators: name: Lee, Jeong-Eun
name: Kang, Wonseok
name: Lee, Sang-Gak
name: Sung, Hyun-Il
name: Lee, Byeong-Cheol
name: Sung, Hwankyung
name: Green, Joel D.
name: Jeon, Young-Beom
Publisher: name: arXiv
Year: 2011
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We report the results of our high resolution optical spectroscopic monitoring campaign ($λ$ = 3800 -- 8800 A, R = 30000 -- 45000) of the new FU Orionis-type object HBC 722. We observed HBC 722 with the BOES 1.8-m telescope between 2010 November 26 and 2010 December 29 and FU Orionis itself on 2011 January 26. We detect a number of previously unreported high-resolution K I and Ca II lines beyond 7500 A. We resolve the H$α$ and Ca II line profiles into three velocity components, which we attribute to both disk and outflow. The increased accretion during outburst can heat the disk to produce the relatively narrow absorption feature and launch outflows appearing as high velocity blue and redshifted broad features.
description: accepted for publication in JKAS
Globular Cluster Systems in Nearby Dwarf Galaxies: III. Formation Efficiencies of Old Globular Clusters
Creators: name: Georgiev, Iskren Y.
name: Puzia, Thomas H.
name: Goudfrooij, Paul
name: Hilker, Michael
Publisher: name: arXiv
Year: 2010
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We investigate the globular cluster (GC) system scaling parameters as a function of galaxy mass, i.e. specific frequency (S_N), specific luminosity (S_L), specific mass (S_M), and specific number (^T) of GCs. We sample the entire range in galaxy luminosity (Mv = -11 to -23 mag = 10^6 - 10^11 L_sol), environment, and morphology. Irrespective of galaxy type, we confirm the increase of the S_N-value above and below a galaxy magnitude of Mv = -20 mag. Over the full mass range, the S_L-value of early-type galaxies is, on average, twice that of late-types. To investigate the observed trends we derive theoretical predictions of GC system scaling parameters as a function of host galaxy mass based on the models of Dekel & Birnboim (2006) in which star-formation processes are regulated by stellar and supernova feedback below a stellar mass of 3x10^10 M_sol, and by virial shocks above it. We find that the analytical model describes remarkably well the shape of the GC system scaling parameter distributions with a universal specific GC formation efficiency, eta, which relates the total mass in GCs to the total galaxy halo mass. Early-type and late-type galaxies show a similar mean value of eta = 5.5e-5, with an increasing scatter towards lower galaxy masses. This can be due to the enhanced stochastic nature of the star and star-cluster formation processes for such systems. Some massive galaxies have excess eta values compared to what is expected from the mean model prediction for galaxies more luminous than Mv = -20 mag (Lv=10^10L_sol). This may be attributed to a very efficient early GC formation, less efficient production of field stars or accretion of predominantly low-mass/luminosity high-eta galaxies, or a mixture of all these effects. (Abridged)
description: 21 pages, 9 figures, accepted by MNRAS
Thoughts on the problem of formation of professional communicative competence of lawyers
Creators: name: Kostruba, Anatoliy
Publisher: name: figshare
Year: 2020
Subjects: subject: 130306 Educational Technology and Computing
subject: FOS: Educational sciences
subject: 170103 Educational Psychology
subject: FOS: Psychology
subject: 130304 Educational Administration, Management and Leadership
subject: 130305 Educational Counselling
subject: Education
subject: 130199 Education systems not elsewhere classified
subject: 160809 Sociology of Education
subject: FOS: Sociology
subject: 139999 Education not elsewhere classified
subject: 160506 Education Policy
subject: FOS: Political science
subject: 130103 Higher Education
subject: 130399 Specialist Studies in Education not elsewhere classified
subject: 180121 Legal Practice, Lawyering and the Legal Profession
subject: FOS: Law
subject: 189999 Law and Legal Studies not elsewhere classified

description: Reforming institutions of procedural law of Ukraine requires a higher level of communicative competence of lawyers, which presupposes applying innovative approaches to organization of professional training of lawyers, as well as introducing competence – oriented education and teaching in the light of their dialogue and discussion and linguo-intense professional activity. As professional activity of lawyers is based on communications, it requires well-developed communicative skills, consequently, the entire organization of professional training of lawyers shall be structured taking into account this factor. The Article suggests the integrative approach to formation of professional communicative competence of students of legal departments, which includes combination of linguistic and law – specific disciplines within the context of applying interactive training techniques.
Bogoliubov Excitations of Disordered Bose-Einstein Condensates
Creators: name: Gaul, Christopher
name: Müller, Cord A.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: FOS: Physical sciences

description: We describe repulsively interacting Bose-Einstein condensates in spatially correlated disorder potentials of arbitrary dimension. The first effect of disorder is to deform the mean-field condensate. Secondly, the quantum excitation spectrum and condensate population are affected. By a saddle-point expansion of the many-body Hamiltonian around the deformed mean-field ground state, we derive the fundamental quadratic Hamiltonian of quantum fluctuations. Importantly, a basis is used such that excitations are orthogonal to the deformed condensate. Via Bogoliubov-Nambu perturbation theory, we compute the effective excitation dispersion, including mean free paths and localization lengths. Corrections to the speed of sound and average density of states are calculated, due to correlated disorder in arbitrary dimensions, extending to the case of weak lattice potentials.
description: 23 pages, 11 figures
Quantification and mapping of methane emissions using eddy covariance in a controlled subsurface synthetic natural gas release experiment
Creators: name: Chopra, Chitra
Publisher: name: University of British Columbia
Year: 2020

description: Unprecedented expansion of unconventional energy resource development has caused concerns about fugitive gas emissions, the patterns of which are not well understood. This study was conducted in north-eastern British Columbia, which is a region of active petroleum resource development, and there is evidence of gas migration at gas wells. A controlled gas injection experiment was conducted at the Hudson’s Hope Field Research Station (HHFRS) near Hudson’s Hope, where 1.5 m³ of synthetic natural gas was injected daily for a period of 66 days, 26 m below the ground (below the water table). The eddy covariance (EC) technique was used to monitor emissions into the atmosphere resulting from the controlled release, with the aim to quantify and potentially locate the emissions using flux footprint analysis. The EC tower was set up 26.4 m north-east of the injection point. Methane fluxes as high as 0.22 µmol m⁻² s⁻¹ were observed during the injection period when wind was from the injection area. Additionally, continuous CO₂ and H₂O fluxes were measured using an enclosed-path infrared gas analyzer, LI-7200 (LI-COR Inc.). A set of climate instruments including soil and radiation sensors were also installed to monitor weather conditions and energy balance closure. Down-scaling the EC fluxes to quantify emissions indicated that the volume released into the atmosphere ranged from 21.9 m³ to 24.6 m³. However, it was conjectured that this could be an underestimate because flux footprint models are applied to releases occurring at the ground and not at a height above the surface, and in this case, there was evidence that most of the emissions were from a ~1-m high well-head. The results suggest the need for an alternate flux footprint model, which considers the height of the source. Furthermore, an inversion approach was tested in an attempt to locate the leak and the results were compared with the original information about the location of the leak, as observed using chamber measurements and a groundwater sampling well. A point source controlled-release experiment was also conducted by releasing 93% v/v methane into the atmosphere to evaluate the flux footprint models being used in this study.