cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Spontaneous ordering against an external field in nonequilibrium systems
Creators: name: Gonzalez-Avella, J. C.
name: Cosenza, M. G.
name: Eguiluz, V. M.
name: Miguel, M. San
Publisher: name: arXiv
Year: 2008
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We study the collective behavior of nonequilibrium systems subject to an external field with a dynamics characterized by the existence of non-interacting states. Aiming at exploring the generality of the results, we consider two types of models according to the nature of their state variables: (i) a vector model, where interactions are proportional to the overlap between the states, and (ii) a scalar model, where interaction depends on the distance between states. In both cases the system displays three phases: two ordered phases, one parallel to the field, and another orthogonal to the field; and a disordered phase. The phase space is numerically characterized for each model in a fully connected network. By placing the particles on a small-world network, we show that, while a regular lattice favors the alignment with the field, the presence of long-range interactions promotes the formation of the ordered phase orthogonal to the field.
description: 5 pages, 5 figures
Trends in Mathematical Imaging and Surface Processing
Creators: name: (:Unkn) Unknown
Publisher: name: Zürich : EMS Publ. House
Year: 2011
Subjects: subject: Konferenzschrift
subject: 510

description: Motivated both by industrial applications and the challenge of new problems, one observes an increasing interest in the field of image and surface processing over the last years. It has become clear that even though the applications areas differ significantly the methodological overlap is enormous. Even if contributions to the field come from almost any discipline in mathematics, a major role is played by partial differential equations and in particular by geometric and variational modeling and by their numerical counterparts. The aim of the workshop was to gather a group of leading experts coming from mathematics, engineering and computer graphics to cover the main developments.
Mass and width of a composite Higgs boson
Creators: name: Doff, A.
name: Natale, A. A.
Publisher: name: arXiv
Year: 2009
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The scalar Higgs boson mass in a Technicolor model was obtained by Elias and Scadron with the analysis of an homogeneous Bethe-Salpeter equation (BSE), however it was performed before the most recent developments of walking gauge theories. It was not observed in their work that dynamically generated technifermion mass may vary according to the theory dynamics that forms the scalar bound state. This will be done in this work and we also call attention that their calculation must change to take into account the normalization condition of the BSE. We compute the width of the composite boson and show how the gauge group and fermion content of a technicolor theory can be inferred from the measurement of the mass and width of the scalar boson.
description: New reference and new figure added. Additional discussion about experimental constraints. Typos corrected
Incompressibility of asymmetric nuclear matter
Creators: name: Chen, Lie-Wen
name: Cai, Bao-Jun
name: Shen, Chun
name: Ko, Che Ming
name: Xu, Jun
name: Li, Bao-An
Publisher: name: arXiv
Year: 2009
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: The incompressibility $K_sat(δ)$ of isospin asymmetric nuclear matter at its saturation density. Our results show that in the expansion of $K_sat(δ)$ in powers of isospin asymmetry $δ$, i.e., $K_sat(δ)$=K_{0}+K_{sat,2}δ^{2}+K_{sat,4}δ^{4}+O(δ^{6})$, the magnitude of the 4th-order K_{sat,4} parameter is generally small. The 2nd-order K_{sat,2} parameter thus essentially characterizes the isospin dependence of the incompressibility of asymmetric nuclear matter at saturation density. Furthermore, the K_{sat,2} can be expressed as K_{sat,2}=K_{sym}-6L-J_{0}/{K_{0}L in terms of the slope parameter $L$ and the curvature parameter $K_{\mathrm{sym}}$ of the symmetry energy and the third-order derivative parameter $J_0$ of the energy of symmetric nuclear matter at saturation density, and we find the higher order $J_0$ contribution to K_{sat,2} generally cannot be neglected. Also, we have found a linear correlation between K_{sym} and $L$ as well as between $J_{0}/K_{0}$ and $K_{0}$. Using these correlations together with the empirical constraints on $K_{0}$ and $L$, the nuclear symmetry energy $E_sym(ρ_{0})$ at normal nuclear density, and the nucleon effective mass, we have obtained an estimated value of K_{sat,2}=-370 +- 120 MeV for the 2nd-order parameter in the isospin asymmetry expansion of the incompressibility of asymmetric nuclear matter at its saturation density.
description: 11 pages, 3 figures. Conribution to The International Workshop on Nuclear Dynamics in Heavy-Ion Reactions and the Symmetry Energy (IWND2009), Shanghai, China, 22-25 August, 2009
Factors determining the numbers of song sparrows on Mandarte Island, B.C.
Creators: name: Tompa, Frank S.
Publisher: name: University of British Columbia
Year: 2011

description: In 1960-63 populations of the song sparrow (Melospiza melodia (Wilson)) were studied on some of the islands along the Pacific Coast of southern British Columbia. The general problem was to find the factors that might be responsible for the regulation of numbers of any small passerine species. A more specific problem was to explain the extremely high population density of the song sparrows on Mandarte Island compared with densities elsewhere. Most individuals on Mandarte Island were colour marked, and changes in population density and behaviour were observed throughout the breeding season and at intervals during the rest of the year. Environmental conditions on Mandarte Island were compared with those on other islands in the area. All islands were alike in having similar weather and few predators; they differed in the kind of vegetation. The high density of the Mandarte Island population seems to have been a result of the simplicity of the habitat, which favours song sparrows and not their potential competitors, and of the adaptability of song sparrows in utilizing common feeding grounds in undefended areas outside their usual habitat. The critical period in the regulation of numbers was the autumnal territorialism, when increased territorial activities resulted in heavy losses and emigration of the young to areas with lower densities.
Dark matter and cosmic acceleration from Wesson's IMT
Creators: name: Israelit, Mark
Publisher: name: arXiv
Year: 2009
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: In the present work a procedure is build up, that allows obtaining dark matter and cosmic acceleration in our 4 dimensional universe embedded in a 5 dim. manifold. Both, DM and the factor causing cosmic acceleration, as well ordinary matter are induced in the in the 4D space-time by a warped but empty from matter 5D bulk. The procedure is carried out in the framework of the Weyl-Dirac version of Wesson's IMT enriched by Rosen's approach. Making in the given procedure use of present observational data one can develope a model of the vuniverse with conventional matter, DM and cosmic acceleration induced by the 5D bulk.
description: 20 pages. Accepted for publication in the Gen Relativ Gravit
Analytical results for O(α_s) radiative corrections to e+ e- -> tbar t(pol.) up to a given gluon energy cut
Creators: name: Groote, S.
name: Körner, J. G.
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We determine the O(α_s) radiative corrections to polarized top quark pair production in e+ e- -annihilations with a specified gluon energy cut. We write down fully analytical results for the unpolarized and polarized O(α_s) cross sections e+ e- -> tbar t (G) and e+ e- -> tbar t(pol.) (G) including their polar orientation dependence relative to the beam direction. In the soft gluon limit we recover the usual factorizing form known from the soft gluon approximation. In the limit when the gluon energy cut takes its maximum value we recover the totally inclusive unpolarized and polarized cross sections calculated previously. We provide some numerical results on the cut-off dependence of the various polarized and unpolarized cross sections and discuss how the exact results numerically differ from the approximate soft-gluon results.
description: 49 pages in LaTeX, including 17 encapsulated PostScript figures
Why Did the Mediterranean Fail to Globalise Real Wages and Labour Market Integration in the 19th Century
Creators: name: Caruana-Galizia, Paul
Publisher: name: Humboldt-Universität zu Berlin
Year: 2015
Subjects: subject: 330 Wirtschaft

description: This publication is with permission of the rights owner freely accessible due to an Alliance licence and a national licence (funded by the DFG, German Research Foundation) respectively.
description: Can low emigration rates from the Mediterranean to the Atlantic economy partly explain its relative economic decline over the 19thcentury? Time series tests of real wage integration show that the Maghreb and Eastern Mediterranean exported enough labourers to experience labour market integration, while the emigration rates of the northern Mediterranean, were not high enough. As the latter group comprised most of the region’s economic weight, the Mediterranean as a whole was held back. The wage gap between the first two groups and the Atlantic economy was the highest, but journey costs relative to wage levels were roughly similar across the Mediterranean. The incentive-vs.-cost arithmetic favoured emigration from the Maghreb and Eastern Mediterranean.
Charge conservation breaking within generalized master equation description of electronic transport through dissipative double quantum dots
Creators: name: Prachar, Jan
name: Novotny, Tomas
Publisher: name: arXiv
Year: 2009
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We report an observation of charge conservation breaking in a model study of electronic current noise of transport through a dissipative double quantum dot within generalized master equation formalism. We study the current noise through a double quantum dot coupled to two electronic leads in the high bias limit and a dissipative heat bath in the weak coupling limit. Our calculations are based on the solution of a Markovian generalized master equation. Zero-frequency component of the current noise calculated within the system, i.e., between the two dots, via the quantum regression theorem exhibits unphysical negative values. On the other hand, current noise calculated for currents between the dots and the leads by the counting variable approach shows no anomalies and seems physically plausible. We inquire into the origin of this discrepancy between two nominally equivalent approaches and show that it stems from the simultaneous presence of the two types of baths, i.e., the electronic leads and the dissipative bosonic bath. This finding raises interesting questions concerning conceptual foundations of the theory describing multiple-baths open quantum systems widely encountered in nanoscience.
description: 10 pages, 4 figures; submitted to Physica E as proceedings of FQMT08
KIBERJINOYATLAR VA ULARNING OLDINI OLISH YO`LLARI
Creators: name: Qodirov, Farrux
name: Tursunova, Sarvinoz
Publisher: name: Zenodo
Year: 2025

description: Kiberjinoyatlar - bu internet va boshqa raqamli texnologiyalar yordamida amalga oshiriladigan jinoyatlar bo‘lib, ular jismoniy va yuridik shaxslarga zarar yetkazish, moliyaviy resurslarni o‘g‘irlash, ma’lumotlarni noqonuniy ravishda olish, shaxsiy ma’lumotlarni o‘g‘irlash va boshqa turdagi zararlarni yetkazishga qaratilgan. Kiberjinoyatlar orasida hakerlik hujumlari, shaxsiy ma'lumotlarni o‘g‘irlash (phishing), moliyaviy firibgarliklar, viruslar va zararli dasturlar (malware) tarqatish, soxta onlayn xizmatlar va kiberbulying kabi ko‘plab jinoyatlar mavjud. Bugungi kunda, internetning keng tarqalishi va raqamli texnologiyalarning rivojlanishi bilan kiberjinoyatlar soni tezda ortib bormoqda. Bular faqat foydalanuvchilarga zarar yetkazish bilan qolmay, balki davlatlar va yirik kompaniyalar uchun ham jiddiy xavf tug‘dirmoqda. Kiberjinoyatlarning oldini olish uchun davlatlar, xususiy sektorda ishlovchi kompaniyalar va individual foydalanuvchilar hamkorlikda bir qator xavfsizlik choralarini ko‘rishi lozim. Kiberjinoyatlarning oldini olish uchun bir qancha samarali yo‘llar mavjud. Bunga kiberxavfsizlikni yaxshilash, ma’lumotlarni shifrlash, antivirus dasturlaridan foydalanish, kompyuter tarmoqlarini himoya qilish, ta’lim va xabardorlikni oshirish va hukumatlararo hamkorlikni mustahkamlash kiradi. Kiberxavfsizlikka oid bilimlarni kengaytirish, xususan, onlayn resurslar va dasturlardan xavfsiz foydalanish, kiberjinoyatlarga qarshi kurashishda asosiy vositalardan biri bo‘lishi mumkin. Bu mavzuni o‘rganish, kiberjinoyatlarning global miqyosdagi tahdidlarini yoritish va ularga qarshi kurashishda eng samarali yo‘llarni aniqlashni maqsad qiladi.
Редкий случай вариантной стенокардии: единая коронарная артерия, исходящая из правого синуса Вальсальвы
Creators: name: Omaygenc Mehmet Onur
name: Karaca Ouuz
name: Yesin Mahmut
name: Guler Ekrem
name: Tabakci Mustafa
name: Kargin Ramazan
Publisher: name: Международный журнал сердца и сосудистых заболеваний
Year: 2015
Subjects: ВАРИАНТНАЯ СТЕНОКАРДИЯ
ЕДИНАЯ КОРОНАРНАЯ АРТЕРИЯ
КОРОНАРНАЯ АНОМАЛИЯ
VARIANT ANGINA
SINGLE CORONARY ARTERY
CORONARY ANOMALIE

description: Аномальное отхождение коронарной артерии от противоположного синуса Вальсальвы встречается редко. Хотя основными причинами ишемических событий, конечно, являются интрамуральный ход коронарной артерии, острый угол отхождения и имеющийся атеросклероз, вазоспастическую стенокардию также следует принимать во внимание. Документированные преходящие подъемы сегмента ST на ЭКГ при исключении других возможных причин и отсутствии патологии на обычной и КТ коронарной ангиографии могут подразумевать такой диагноз. Насколько известно, это первый описанный в литературе случай стенокардии Принцметала на единственной коронарной артерии, отходящей от правого синуса Вальсальвы.
description: Anomalous origin of a coronary artery from opposite sinus Valsalva is considerably rare. Although intertruncal course, acute take-off angle and co-existing atherosclerosis are major causes of ischemic events in this population, vasospastic angina should also be appreciated. Documenting transient ST segment elevations on ECG and excluding other possible reasons with conventional and CT coronary angiograms may result in this diagnosis. To the best of our knowledge this is the first case in the literature reporting Prinzmetal’s phenomenon of a single coronary artery arising from right sinus Valsalva.
Quasar Outflow Contribution to AGN Feedback: Observations of QSO SDSS J0838+2955
Creators: name: Moe, Maxwell
name: Arav, Nahum
name: Bautista, Manuel A.
name: Korista, Kirk T.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We present a detailed analysis of the Astrophysical Research Consortium 3.5 m telescope spectrum of QSO SDSS J0838+2955. The object shows three broad absorption line (BAL) systems at 22,000, 13,000, and 4900 km s^-1 blueshifted from the systemic redshift of z=2.043. Of particular interest is the lowest velocity system that displays absorption from low-ionization species such as Mg II, Al II, Si II, Si II*, Fe II and Fe II*. Accurate column densities were measured for all transitions in this lowest velocity BAL using an inhomogeneous absorber model. The ratio of column densities of Si II* and Fe II* with respect to their ground states gave an electron number density of log n_e (cm^-3) = 3.75 +/- 0.22 for the outflow. Photoionization modeling with careful regards to chemical abundances and the incident spectral energy distribution predicts an ionization parameter of log U_H = -1.93 +/- 0.21 and a hydrogen column density of log N_H (cm^-2) = 20.80 +/- 0.28. This places the outflow at 3.3+1.5-1.0 kpc from the central AGN. Assuming that the fraction of solid angle subtended by the outflow is 0.2, these values yield a kinetic luminosity of (4.5+3.1-1.8) x 10^45 erg s^-1, which is (1.4+1.1-0.6)% the bolometric luminosity of the QSO itself. Such large kinetic luminosity suggests that QSO outflows are a major contributor to AGN feedback mechanisms.
description: 28 pages, 7 figures, 4 tables, published in Astrophysical Journal
Multi-scale dissection of wing transparency in the clearwing butterfly Phanus vitreus
Creators: name: Finet, Cédric
name: Ruan, Qifeng
name: Bei, Yi Yang
name: You En Chan, John
name: Saranathan, Vinodkumar
name: Yang, Joel K. W.
name: Monteiro, Antónia
Publisher: name: The Royal Society
Year: 2023
Subjects: subject: Biophysics
subject: 90301 Biomaterials
subject: FOS: Medical engineering
subject: 30402 Biomolecular Modelling and Design
subject: FOS: Chemical sciences

description: Optical transparency is rare in terrestrial organisms, and often originates through loss of pigmentation and reduction in scattering. The coloured wings of some butterflies and moths have repeatedly evolved transparency, offering examples of how they function optically and biologically. Because pigments are primarily localized in the scales that cover a colourless wing membrane, transparency has often evolved through the complete loss of scales or radical modification of their shape. Whereas bristle-like scales have been well documented in glasswing butterflies, other scale modifications resulting in transparency remain understudied. The butterfly Phanus vitreus achieves transparency while retaining its scales and exhibiting blue/cyan transparent zones. Here, we investigate the mechanism of wing transparency in P. vitreus by light microscopy, focused ion beam milling, microspectrophotometry and optical modelling. We show that transparency is achieved via loss of pigments and vertical orientation in normal paddle-like scales. These alterations are combined with an anti-reflective nipple array on portions of the wing membrane being more exposed to light. The blueish coloration of the P. vitreus transparent regions is due to the properties of the wing membrane, and local scale nanostructures. We show that scale retention in the transparent patches might be explained by these perpendicular scales having hydrophobic properties.
Lagerpeton chanarensis Romer 1971
Creators: name: Müller, Rodrigo Temp
name: Langer, Max Cardoso
name: Dias-Da-Silva, Sérgio
Publisher: name: Zenodo
Year: 2018
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Reptilia
Lagerpetonidae
Lagerpeton
Lagerpeton chanarensis

description: Lagerpeton chanarensis Romer, 1971  (Fig. 1A)
 Age. early–mid Carnian, Late Triassic (Marsicano et al. 2015).
 Occurrence. Chañares Formation, Argentina.
 Holotype. UNLR 06, articulated right hind limb.
 Referred material. PVL 4619, articulated sacrum, pelvis, and partial right and left hind limbs; PVL 4625, articulated vertebral column including truncal, sacral, and anterior caudal vertebrae, left pelvis, and left femur; MCZ 4121, partial right and left femora.
description: Published as part of Müller, Rodrigo Temp, Langer, Max Cardoso & Dias-Da-Silva, Sérgio, 2018, Ingroup relationships of Lagerpetidae (Avemetatarsalia: Dinosauromorpha): a further phylogenetic investigation on the understanding of dinosaur relatives, pp. 149-158 in Zootaxa 4392 (1) on page 150, DOI: 10.11646/zootaxa.4392.1.7, http://zenodo.org/record/1195260
Annihilation-Type Charmless Radiative Decays of B Meson in Non-universal Z^\prime Model
Creators: name: Hua, Juan
name: Kim, C. s
name: Li, Ying
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We study charmless pure annihilation type radiative B decays within the QCD factorization approach. After adding the vertex corrections to the naive factorization approach, we find that the branching ratios of $\bar{B}^0_d\toϕγ$, $\bar{B}^0_s\toρ^0γ$ and $\bar{B}^0_s\toωγ$ within the standard model are at the order of $\mathcal{O}(10^{-12})$, $\mathcal{O}(10^{-10})$ and $\mathcal{O}(10^{-11})$, respectively. The smallness of these decays in the standard model makes them sensitive probes of flavor physics beyond the standard model. To explore their physics potential, we have estimated the contribution of $Z^\prime$ boson in the decays. Within the allowed parameter space, the branching ratios of these decay modes can be enhanced remarkably in the non-universal $Z^\prime$ model: The branching ratios can reach to $\mathcal{O}(10^{-8})$ for $\bar B_s^0 \to ρ^0(ω)γ$ and $\mathcal{O}(10^{-10})$ for the $\bar B_d^0 \to ϕγ$, which are large enough for LHC-b and/or Super B-factories to detect those channels in near future. Moreover, we also predict large CP asymmetries in suitable parameter space. The observation of these modes could in turn help us to constrain the $Z'$ mass within the model.
description: 13 pages, 8 figures
Применение экстракорпоральной мембранной оксигенации при заболеваниях дыхательной системы у взрослых
Creators: name: Manickam Rajapriya
name: Manglani Ravi
name: Lisa, Paul
name: Aronow Wilbert, S.
Publisher: name: Международный журнал сердца и сосудистых заболеваний
Year: 2016
Subjects: ЭКСТРАКОРПОРАЛЬНАЯ МЕМБРАННАЯ ОКСИГЕНАЦИЯ
ЗАБОЛЕВАНИЯ ДЫХАТЕЛЬНОЙ СИСТЕМЫ
ВЗРОСЛЫЕ
EXTRACORPOREAL MEMBRANE OXYGENATION
RESPIRATORY DISEASES
ADULTS

description: Экстракорпоральная мембранная оксигенация (ЭКМО) впервые была проведена взрослому больному в 1972 г., первым пациентом стал молодой человек с посттравматическим острым респираторным дистресс-синдромом (ОРДС). Технология этой процедуры основана на применении аппарата искусственного кровообращения, используемого в сердечно-сосудистой хирургии, модифицированного для возможности долгосрочной поддержки дыхательной системы и/или сердца. Существует два основных варианта выполнения ЭКМО: ЭКМО с вено-венозной канюляцией (ВВК-ЭКМО) и ЭКМО с вено-артериальной канюляцией (ВАК-ЭКМО). Первый применяют у пациентов с удовлетворительной сердечной функцией с целью поддержания дыхательной си стемы, в то время как второй у больных с нарушениями работы сердца для борьбы с сердечной недостаточностью. Значительный прогресс отмечается в области экстракорпоральной поддержки жизнеобеспечения (ЭКПЖ), и это может предоставить дополнительные возможности ведения пациентов с тяжелыми заболеваниями сердца и дыхательной системы. В данном обзоре обсуждаются последние разработки в этой области и возможности использования ЭКМО при заболеваниях дыхательной системы у взрослых.
description: Extracorporeal membrane oxygenation (ECMO) was first used in adults in 1972 in a young patient with post-traumatic acute respiratory distress syndrome (ARDS). The technology is derived from the cardiopulmonary bypass machine used for cardiac surgery, modified for a longer-term support of respiratory and/or cardiac function. There are two major types of support that may be provided with ECMO, veno-venous ECMO (VV-ECMO) and veno-arterial ECMO (VA-ECMO). The former is used in patients with good cardiac function, in an effort to support lung function, while the latter is used in patients with poor cardiac function, in an effort to support the failing heart. Significant advances continue to be made in the field of extracorporeal life support (ECLS) and the modality promises to supplement the management options available for the niche role in management of patients with severe cardiac and respiratory disease. In this review, we discuss the latest developments and usage of ECMO in respiratory diseases in adults.
The Role and Detectability of the Charm Contribution to Ultra High Energy Neutrino Fluxes
Creators: name: Gandhi, Raj
name: Samanta, Abhijit
name: Watanabe, Atsushi
Publisher: name: arXiv
Year: 2009
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: It is widely believed that charm meson production and decay may play an important role in high energy astrophysical sources of neutrinos, especially those that are baryon-rich, providing an environment conducive to pp interactions. Using slow-jet supernovae (SJS) as an example of such a source, we study the detectability of high-energy neutrinos, paying particular attention to those produced from charmed-mesons. We highlight important distinguishing features in the ultra-high energy neutrino flux which would act as markers for the role of charm in the source. In particular, charm leads to significant event rates at higher energies, after the conventional (pi, K) neutrino fluxes fall off. We calculate event rates both for a nearby single source and for diffuse SJS fluxes for an IceCube-like detector. By comparing muon event rates for the conventional and prompt fluxes in different energy bins, we demonstrate the striking energy dependence in the rates induced by the presence of charm. We also show that it leads to an energy dependant flux ratio of shower to muon events, providing an additional important diagnostic tool for the presence of prompt neutrinos. Motivated by the infusion of high energy anti-electron neutrinos into the flux by charm decay, we also study the detectability of the Glashow resonance due to these sources.
description: 13 pages, 5 figures; (ver. 2) accepted in JCAP
SEARCH FOR NEUTRON EMISSION FROM DEUTERIDED HIGH TEMPERATURE SUPERCONDUCTORS IN A VERY LOW BACKGROUND ENVIRONMENT(+)
Creators: name: F. CELANI
name: A. SPALLONE
name: L. LIBERATORI
name: F. CROCE
name: L. STORELLI
name: S. FORTUNATI
name: M. TULUI
name: N. SPARVIERI
Publisher: name: INFN Open Access Repository
Year: 1991

description: Following the experiments performed with deuterium High Temperature SuperConductors (HTSC) at underground Gran Sasso Laboratory, we have learnt the capacity to absorb Deuterium (D) by these materials and the role played by non-equilibrium conditions to get neutron burst emissions in the framework of Cold Fusion. So far, some Y_1Ba_2Cu_3O_7-δ (YBCO) pellets and high pressure D_2 gas were enclosed in a stainless steel vessel and a charging-up procedure was performed. The vessl was put in a thermal neutrons field and some thermal cycles (300-> 77-> 300 K) were performed; moreover, for comparison, background and black runs were performed. A secific acuisition system, able to detect multiple neutron signals in defined time-windows ('time-correlated events'), was set-up. One thermal cycle run shower a large increase of time-correlated events in respect to the blanks; one other run, although with no relevant mean-value increase of events detected, showed, on the other hand, one interesting multiple neutron signal (triple); other similar runsproduced no relevant values. One-other kind of experiment, at constant temperature (300 K), characterized by a heavy D_2 gas refill, showed both some increase of time-correlated events and few 'triple' neutron signals.
Comparison of Recent SnIa datasets
Creators: name: Sanchez, J. C. Bueno
name: Nesseris, S.
name: Perivolaropoulos, L.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We rank the six latest Type Ia supernova (SnIa) datasets (Constitution (C), Union (U), ESSENCE (Davis) (E), Gold06 (G), SNLS 1yr (S) and SDSS-II (D)) in the context of the Chevalier-Polarski-Linder (CPL) parametrization $w(a)=w_0+w_1 (1-a)$, according to their Figure of Merit (FoM), their consistency with the cosmological constant ($Λ$CDM), their consistency with standard rulers (Cosmic Microwave Background (CMB) and Baryon Acoustic Oscillations (BAO)) and their mutual consistency. We find a significant improvement of the FoM (defined as the inverse area of the 95.4% parameter contour) with the number of SnIa of these datasets ((C) highest FoM, (U), (G), (D), (E), (S) lowest FoM). Standard rulers (CMB+BAO) have a better FoM by about a factor of 3, compared to the highest FoM SnIa dataset (C). We also find that the ranking sequence based on consistency with $Λ$CDM is identical with the corresponding ranking based on consistency with standard rulers ((S) most consistent, (D), (C), (E), (U), (G) least consistent). The ranking sequence of the datasets however changes when we consider the consistency with an expansion history corresponding to evolving dark energy $(w_0,w_1)=(-1.4,2)$ crossing the phantom divide line $w=-1$ (it is practically reversed to (G), (U), (E), (S), (D), (C)). The SALT2 and MLCS2k2 fitters are also compared and some peculiar features of the SDSS-II dataset when standardized with the MLCS2k2 fitter are pointed out. Finally, we construct a statistic to estimate the internal consistency of a collection of SnIa datasets. We find that even though there is good consistency among most samples taken from the above datasets, this consistency decreases significantly when the Gold06 (G) dataset is included in the sample.
description: 13 pages, 9 figures. Included recently released SDSS-II dataset. Improved presentation. Main results unchanged. The mathematica files and datasets used for the production of the figures may be downloaded from http://leandros.physics.uoi.gr/datacomp/
The dialectical principle in the poetry of Arthur Hugh Clough.
Creators: name: Wells, Margo Constance
Publisher: name: University of British Columbia
Year: 2011

description: The title of Walter Houghton's recent article, "Arthur Hugh Clough: A Hundred Years of Disparagement", could not fail to strike any reader familiar with the general tone and subject matter of the major criticism which has appeared on Clough to the present day. Most of the studies have been in the nature of personal appreciations and have dealt primarily with Clough as a man. Even the more scholarly and objective studies which have been published lately have failed to treat his poetry in any comprehensive way, but have tended, rather, to emphasize one aspect of Clough and then have referred briefly to certain poems which support a thesis. There has been no noteworthy attempt to subject his poetry to a close textual analysis in order to determine if any general principle underlies it. For this reason, I have been primarily concerned in this study with examining the poetry of Arthur Hugh Clough to assess the presence in it of what I have called the dialectical principle—the way in which his most characteristic approach to experience is carried over into his poetry and finds expression in theme, mood, tone, form, imagery and characters. Chapter II discusses the presence of the dialectical element in the theme of Clough’s poetry—particularly in the poems which deal with religion, in those which attempt to answer the unanswerable questions, why man is here, how he should live while here, and if he will continue to exist in some form after death, and in those which probe the nature of love. Chapter III examines the way in which the dialectical principle is reflected in juxtaposed moods, in the tone, and in the external form of Clough’s poetry. And, finally, Chapter IV considers imagery and characters, the imaginative and dramatic embodiment of the dialectic in themes dealt with in Chapter II. The study concludes with the suggestion that Clough, for the most part, did not succeed in solving his intellectual and spiritual problems and in conveying the solution through his poetry. For the poems here analyzed, with perhaps the exception of "Easter Day, Part II," record his failure to cross "the darkling plain" and find some new light of truth which would satisfy him both emotionally and intellectually. In many of them, the dialectic exists as unresolved debate when Clough, unable to find an intellectual synthesis, concludes with an admission of defeat or with the decision to wait for some further revelation of Truth. At other times, when his desire for certainty will not permit him to let the dialectic end in an impasse, he is forced to shift the terms of the debate and to "synthesize" his intellectual difficulties in a realm of pure feeling or on an ideal plane. Thus, the conclusion becomes an emotional, rather than an intellectual solution—usually one in which Clough ends by trusting an undefined "larger hope," when he is unable to answer the problem posed by rational means.
Prädiktive Regelung und Optimierung eines Oberleitungsbussystems
Creators: name: Wazifehdust, Mahjar
Publisher: name: Bergische Universität Wuppertal
Year: 2023

description: Die vorliegende Dissertationsschrift reiht sich in dem Themenkomplex der hochaktuellen Entwicklungen und Diskussionen rund um die Energie- und Mobilitätswende ein. Ausgehend von den gegenwärtigen, energiepolitischen und klimabezogenen Zielen wird den bestehenden Energieversorgungs- und Verkehrssystemen eine wesentliche Rolle im Kontext der voranschreitenden Transformationsprozesse zugesprochen. Für die Entwicklung zukunftsfähiger und nachhaltiger elektrischer Verkehrssysteme, bedarf es einer vollständigen Dekarbonisierung. Dies kann insbesondere im Fall von bestehenden Verkehrssystemen durch den Einsatz innovativer und intelligenter Technologien begünstigt werden. Im vorliegenden Fall des Oberleitungsbussystems repräsentiert der Prozess der Dekarbonisierung den sukzessiven Austausch konventioneller Oberleitungsbusse durch Batterieoberleitungsbusse. Im Gegensatz zu den Oberleitungsbussen, verfügen die Batterieoberleitungsbusse über eine Traktionsbatterie statt eines Dieselhilfsmotors und bewältigen somit oberleitungsfreie Abschnitte vollständig emissionsfrei. Dies ist jedoch von einer neuen Herausforderung geprägt: Traktionsbatterien müssen während der Fahrt unter der Oberleitung geladen werden. Das kann aufgrund des gleichzeitigen Bezugs von Antriebsleistung zu einer erhöhten und teils kritischen, elektrischen und thermischen Belastung der Oberleitungsinfrastruktur führen. Vor dem Hintergrund des Smart Grid-Ansatzes wird in der vorliegenden Arbeit die algorithmische Entwicklung einer prädiktiven Regelung und Optimierung für ein Oberleitungsbussystem beschrieben. Durch den zweckdienlichen Einsatz neuartiger Methoden und Netzteilnehmer wird eine sichere Betriebsführung ermöglicht. Ausgehend von der Charakteristik des Oberleitungsbussystems und den damit verbundenen Herausforderungen, wird der generische Entwicklungsprozess eines zentralen Netzauto++
description: matisierungssystems beleuchtet, welches als ergänzende Komponente eines Netzleitsystems eingesetzt werden soll.
The breathing-mode giant monopole resonance and the surface compressibility in the relativistic mean-field theory
Creators: name: Sharma, M. M.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Nuclear Theory (nucl-th)
subject: Astrophysics (astro-ph)
subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: The breathing-mode isoscalar giant monopole resonance (GMR) is investigated using the generator coordinate method within the relativistic mean-field (RMF) theory. Employing the Lagrangian models of the nonlinear-$σ$ model (NL$σ$), the scalar-vector interaction model (SVI) and the $σ$-$ω$ coupling model (SIGO), we show that each Lagrangian model exhibits a distinctly different GMR response. Consequently, Lagrangian models yield a different value of the GMR energy for a given value of the nuclear matter incompressibility $K_\infty$. It is shown that this effect arises largely from a different value of the surface incompressibility $K_{surf}$ inherent to each Lagrangian model, thus giving rise to the ratio $K_{surf}/K_\infty$ which depends upon the Lagrangian model used. This is attributed to a difference in the density dependence of the meson masses and hence to the density dependence of the nuclear interaction amongst various Lagrangian models. The sensitivity of the GMR energy to the Lagrangian model used and thus emergence of a multitude of GMR energies for a given value of $K_\infty$ renders the method of extracting $K_\infty$ on the basis of interpolation amongst forces as inappropriate. As a remedy, the need to 'calibrate' the density dependence of the nuclear interaction in the RMF theory is proposed.
description: 33 pages, 7 figures; Accepted in Nucl. Phys. A
Ixalerpeton polesinensis Cabreira et al. 2016
Creators: name: Müller, Rodrigo Temp
name: Langer, Max Cardoso
name: Dias-Da-Silva, Sérgio
Publisher: name: Zenodo
Year: 2018
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Reptilia
Lagerpetonidae
Ixalerpeton
Ixalerpeton polesinensis

description: Ixalerpeton polesinensis Cabreira et al., 2016  (Fig. 1B)
 Age. late Carnian, Late Triassic (Cabreira et al. 2016).
 Occurrence. Candelária Sequence of the Santa Maria Supersequence, Brazil.
 Holotype. ULBRA-PVT059, partially articulated skeleton, including skull roof, braincase, 23 pre-sacral, two sacral, and nine tail vertebrae, right scapula, left humerus, paired pelvic girdle, femur, tibia, and fibula.
 Paratype. ULBRA-PVT058, pair of femora.
description: Published as part of Müller, Rodrigo Temp, Langer, Max Cardoso & Dias-Da-Silva, Sérgio, 2018, Ingroup relationships of Lagerpetidae (Avemetatarsalia: Dinosauromorpha): a further phylogenetic investigation on the understanding of dinosaur relatives, pp. 149-158 in Zootaxa 4392 (1) on page 150, DOI: 10.11646/zootaxa.4392.1.7, http://zenodo.org/record/1195260
Impacts of the Suai Supply Base Project in Timor-Leste
Creators: name: Cryan, Meabh
Publisher: name: Canberra, ACT : Coral Bell School of Asia Pacific Affairs, College of Asia and the Pacific, The Australian National University
Year: 2015

description: Based on field research in early 2015, this In Brief provides a preliminary overview of the differentiated impacts the project is likely to have, and concludes that the land expropriation process for the Suai Supply Base runs the risk of: severely impoverishing local households, increasing inequality between and within households, and leading to marginalisation and social disarticulation (Cernea 2000). Issues highlighted in this In Brief will be explored in depth in a future SSGM Discussion Paper.
GO Unite! -Themenkomplex Beratungen (24.02.2022)
Creators: name: Strauch-Davey, Annette
Publisher: name: Zenodo
Year: 2022
Subjects: FDM
Forschungsdaten
research data
Forschungsdatenmanagement
GO Unite!
FAIR
RDM

description: Die Folien sind im Rahmen der Diskussionen (am 24.02.2022) entstanden: GO Unite! Working Groups: Join the Discussion (in German)
 Link: https://www.go-fair.org/events/go-unite-working-groups-join-the-discussion-in-german/
Crystallization of ion clouds in octupole traps: structural transitions, core melting, and scaling laws
Creators: name: Calvo, Florent
name: Champenois, Caroline
name: Yurtsever, Ersin
Publisher: name: arXiv
Year: 2009
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Atomic and Molecular Clusters (physics.atm-clus)
subject: FOS: Physical sciences

description: The stable structures and melting properties of ion clouds in isotropic octupole traps are investigated using a combination of semi-analytical and numerical models, with a particular emphasis at finite size scaling effects. Small-size clouds are found to be hollow and arranged in shells corresponding approximately to the solutions of the Thomson problem. The shell structure is lost in clusters containing more than a few thousands of ions, the inner parts of the cloud becoming soft and amorphous. While melting is triggered in the core shells, the melting temperature unexpectedly follows the rule expected for three-dimensional dense particles, with a depression scaling linearly with the inverse radius.
title: Επίλυση ευθέων προβλημάτων στη μηχανική μέσω νευρωνικών δικτύων ενημερωμένων από τη φυσική
title: Solving direct problems in mechanics using physics informed neural networks (PINNs)

Creators: name: Κατσικης Δημητριος
Publisher: name: Technical University of Crete
Year: 2021

description: Στην παρούσα διπλωματική εργασία μελετάται μια σχετικά πρόσφατα αναπτυγμένη μέθοδος επίλυσης συνήθων και μερικών διαφορικών εξισώσεων με χρήση Τεχνητών Νευρωνικών Δικτύων ΤΝΔ (Artificial Neural Networks ANN). Η συγκεκριμένη μέθοδος ονομάζεται Physics Informed Neural Networks (PINNs) και η ανάπτυξή της προέκυψε από τον συνδυασμό αρκετών διαφορετικών επιστημονικών πεδίων όπως η νευρολογία, η πληροφορική, η επιστήμη υπολογιστών , τα εφαρμοσμένα μαθηματικά, η εφαρμοσμένη φυσική  καθώς και η υπολογιστική μηχανική. Ουσιαστικά πρόκειται για μια αριθμητική μέθοδο επίλυσης γραμμικών και μη γραμμικών προβλημάτων που συναντώνται στην μετάδοση θερμότητας , στην ρευστομηχανική, στην δυναμική ή στην στατική μηχανική.
Κύριος στόχος της παρούσας εργασίας είναι η ανάπτυξη αλγορίθμων σε γλώσσα προγραμματισμού Python, με σκοπό την εφαρμογή της μεθόδου σε προβλήματα στατικής μηχανικής. Συγκεκριμένα τα προβλήματα που επρόκειτο να λυθούν είναι το πρόβλημα εφελκυσμού σε μονόπακτη ράβδο και το πρόβλημα της δοκού της οποίας ασκούνται δυνάμεις κάμψης για διάφορες συνθήκες στήριξης όπως αμφιέρειστη δοκός, δοκός πρόβολος ή δοκός με πάκτωση στο ένα άκρο και κύλιση στο άλλο. Συγχρόνως θα παρουσιαστεί αναλυτικά ολόκληρη η συλλογιστική πορεία ανάπτυξης  ή τροποποίησης ήδη υπάρχων αλγορίθμων που αναπαριστούν  απλά τεχνητά νευρωνικά δίκτυα και PINNs.  Η εργασία περιλαμβάνει αναλυτικά τον τρόπο λειτουργίας των τεχνητών νευρωνικών δικτύων τόσο σε θεωρητικό και μαθηματικό επίπεδο, όσο και σε επίπεδο προγραμματισμού μέσω απλών παραδειγμάτων αλλά και παράθεσης και επεξήγησης τμημάτων του κώδικα που επιλύουν τα προβλήματα της εργασίας.
Η δομή της εργασίας σχεδιάστηκε με τέτοιο τρόπο ώστε να εισάγει ήπια τον αναγνώστη αρχικά στα δομικά υλικά που συνθέτουν το εγχείρημα, να κατανοήσει τις λεπτομέρειες της υλοποίησης και στη συνέχεια να βρεθεί στη θέση να κατανοήσει όσο το δυνατόν πιο εύκολα την σύνδεση. Τα δομικά υλικά με αφηρημένο τρόπο είναι: η μεγάλη εικόνα του τρόπου λειτουργίας των βιολογικών νευρωνικών δικτύων, η θεωρία της μηχανικής και βαθιάς μάθησης (Machine Learning and Deep Learning) καθώς και η θεωρία της στατικής μηχανικής από την οποία θα χρησιμοποιηθούν οι διαφορικές εξισώσεις προς επίλυση. Η σύνδεση προκύπτει από το εξής εύλογο ερώτημα: “ Θα μπορούσε να λυθεί μια διαφορική εξίσωση με χρήση  νευρωνικών δικτύων; ”. Τέλος, αξίζει να σημειωθεί ότι ένας θεμελιώδης στόχος της εργασίας είναι να προσφέρει μια στέρεα και ασφαλή βάση, μια έγκυρη πηγή πληροφόρησης και καθοδήγησης για τον επόμενο φοιτητή που θα ασχοληθεί με το θέμα ώστε να λύσει σύντομα τα αρχικά προβλήματα κατανόησης του εγχειρήματος και να προχωρήσει ένα βήμα παρακάτω.
Testing the Non-universal Z^\prime Model in Bs -> ϕπ^0 Decay
Creators: name: Hua, Juan
name: Kim, C. s
name: Li, Ying
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The branching ratio and direct CP asymmetry of the decay mode $B_s \to ϕπ^0$ have been calculated within the QCD factorization approach in both the standard model (SM) and the non-universal $Z^\prime$ model. In the standard model, the CP averaged branching ratio is about $1.3\times 10^{-7}$. Considering the effect of $Z^\prime$ boson, we found the branching ratio can be enlarged three times or decreased to one third %by the effect of $Z^\prime$ boson within the allowed parameter spaces. Furthermore, the direct CP asymmetry could reach 55% with a light $Z^\prime$ boson and suitable CKM phase, compared to 25% predicted in the SM. The enhancement of both branching ratio and CP asymmetry cannot be realized at the same parameter spaces, thus, if this decay mode is measured in the upcoming LHC-b experiment and/or Super B-factories, the peculiar deviation from the SM may provide a signal of the non-universal $Z^\prime$ model, which can be used to constrain the mass of $Z^\prime$ boson in turn.
description: 9 pages, 5 figures
Ingroup relationships of Lagerpetidae (Avemetatarsalia: Dinosauromorpha): a further phylogenetic investigation on the understanding of dinosaur relatives
Creators: name: Müller, Rodrigo Temp
name: Langer, Max Cardoso
name: Dias-Da-Silva, Sérgio
Publisher: name: Zenodo
Year: 2018
Subjects: Biodiversity
Taxonomy

description: PVSJ 883 (Fig. 1C)
 Age. late Carnian, Late Triassic (Martínez et al. 2011).
 Occurrence. Ischigualasto Formation, Argentina.
 Material. distal end of the left femur (see Martínez et al. 2012).
description: Published as part of Müller, Rodrigo Temp, Langer, Max Cardoso & Dias-Da-Silva, Sérgio, 2018, Ingroup relationships of Lagerpetidae (Avemetatarsalia: Dinosauromorpha): a further phylogenetic investigation on the understanding of dinosaur relatives, pp. 149-158 in Zootaxa 4392 (1) on page 150, DOI: 10.11646/zootaxa.4392.1.7, http://zenodo.org/record/1195260
Non-gaussian statistics and the relativistic nuclear equation of state
Creators: name: Pereira, F. I. M.
name: Silva, R.
name: Alcaniz, J. S.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Nuclear Theory (nucl-th)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: We investigate possible effects of quantum power-law statistical mechanics on the relativistic nuclear equation of state in the context of the Walecka quantum hadrodynamics theory. By considering the Kaniadakis non-Gaussian statistics, characterized by the index $κ$ (Boltzmann-Gibbs entropy is recovered in the limit $κ\to 0$), we show that the scalar and vector meson fields become more intense due to the non-Gaussian statistical effects ($κ\neq 0$). From an analytical treatment, an upper bound on $κ$ ($κ< 1/4$) is found. We also show that as the parameter $κ$ increases the nucleon effective mass diminishes and the equation of state becomes stiffer. A possible connection between phase transitions in nuclear matter and the $κ$-parameter is largely discussed.
description: 8 pages, 8 fifures, LaTeX
Green's Functions and Topological Configurations
Creators: name: Maas, Axel
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: There are, among others, currently two important views on the non-perturbative structure of Yang-Mills theory. One is through topological configurations and one is through Green's functions, in particular their (asymptotic) infrared behavior. Based on both views, various scenarios for confinement, chiral symmetry breaking and other non-perturbative effects have been developed. However, if both views are correct then they can only be different aspects of the same underlying physics, and it must be possible to relate them. After discussing the current status of the understanding of this connection, smeared and cooled configurations in lattice gauge theory are used to determine the properties of Green's functions in the low-momentum regime. It is found that the qualitative properties are essentially unchanged compared to results on unsmeared configurations. This is also the case when the configurations are smeared sufficiently strongly to reach the almost (anti-)self-dual domain.
description: 5 pages, 2 figures; invited talk presented at the conference "Quark Confinement and the Hadron Spectrum VIII", Mainz, Germany, 1st-6th of September 2008; submitted to the proceedings