cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Essays on three major development issues in Pakistan
Creators: name: Yousafzai, Tufail
Publisher: name: The Australian National University
Year: 2016

description: This thesis comprise of three independent, but self-contained, chapters relating to economic development of Pakistan. While the first chapter is general and theoretical, the other two chapters are empirical. Chapter 2 is a theoretical analysis of the existence of agricultural externality when the cause of externality is not only the presence of sub-soil hydrological contamination but also the method of application of agricultural technology, otherwise known as 'efforts.' The analysis demonstrates that individual optimization of agricultural production activities leads to socially undesireable outcomes when the upstream farmer does not take into account the costs associated with the flow of pollutants generated by the upstream farmer on the downstream farmer. The analysis suggests that an optimal agricultural policy choice choice would be to taxing not only the flow of contaminants, but aso the efforts. Chapter 3 analysis the impact of abolition of the Multi-Fibre Agreement (MFA) on Pakistan's export of textiles and clothing sectors. Using the stochastic frontier gravity model and calculating the revealed comparative advantage (RCA) indices, the results show that the abolition of the MFA does not have a significant impact on Pakistan's export of textiles sub-sector. Also, the mean-export efficiency of textiles has shown a decreasing trend over time. In contrast, the abolition of the MFA has a significant positive impact on Pakistan's export of clothing sub-sector with the mean-export efficiency showing an increasing trend over time. Calculation of revealed comparative advantage reveals that Pakistan has maintained post-MFA comparative advantage in a wide range of its textiles and clothing products. Chapter 4 investigates the average and marginal spending behaviour of households in Pakistan that receive international remittances. Using nationally representative household income and expenditure survey data for Pakistan, this chapter analysis the households' spending behaviour on five different categories of goods: food, education, health, non-durables and durables. Using a counterfactual framework, a two-stage Heckman model is used to address the selection in unobservable heterogeneity. Two findings emerge. First, expenditure share on food for households that receive remittances would have been more if the households had not been receiving remittances. Similarly, less spending on the other four categories of education, health, non-durables and durables is predicted for remittances-receiving households had they not been receiving remittances. Second, households that receive remittances spend less at the margin on food and durables and more on education, health and non-durables. Remittances-receiving households appear to look at the remittance earnings as a transitory income and therefore tend to spend remittances more on investment than consumption.
Dissecting Stochastic Gravitational Wave Background with Astrometry
Creators: name: Çalışkan, Mesut
name: Chen, Yifan
name: Dai, Liang
name: Anil Kumar, Neha
name: Stomberg, Isak
name: Xue, Xiao
Publisher: name: Deutsches Elektronen-Synchrotron, DESY, Hamburg
Year: 2023
Subjects: gravitational radiation, background
photon, deflection
gravitational radiation, stochastic
background, stochastic
pulsar
variability
Theia
noise
star
power spectrum
correlation
LISA

description: Astrometry, the precise measurement of star motions, offers an alternative avenue to investigate low-frequency gravitational waves through the spatial deflection of photons, complementing pulsar timing arrays reliant on timing residuals. Upcoming data from Gaia, Theia, and Roman can not only cross-check pulsar timing array findings but also explore the uncharted frequency range bridging pulsar timing arrays and LISA. We present an analytical framework to evaluate the feasibility of detecting a gravitational wave background, considering measurement noise and the intrinsic variability of the stochastic background. Furthermore, we highlight astrometry's crucial role in uncovering key properties of the gravitational wave background, such as spectral index and chirality, employing information-matrix analysis. Finally, we simulate the emergence of quadrupolar correlations, commonly referred to as the generalized Hellings-Downs curves.
The Association of HLA and Systemic Sclerosis (SSc) in the Northeastern Thais.
Creators: name: Ajanee Mahakkanukrauh
name: Chintana Puapairoj
name: Ratanavadee Nanagara
name: Siraphob Suwannaroj
name: Arunrat Romphruk
name: Chanvit Leelayuwat
name: Amornrat Romphruk
Publisher: name: Research and Technology Transfer Affairs Division
Year: 2015
Subjects: systemic sclerosis,scleroderma,HLA,genetic,Thai

description: 4, 20, KKU Research Journal
Quark matter contribution to the heat capacity of magnetized neutron stars
Creators: name: Ferrer, E. J.
name: de la Incera, V.
name: Sanson, P.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Nuclear Theory (nucl-th)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: In this paper, we find the heat capacity of the magnetic dual chiral density wave (MDCDW) phase of dense quark matter and use it to explore the feasibility of this phase for a neutron star interior. MDCDW is a spatially inhomogeneous phase of quark matter known to be favored at intermediate densities over the chirally symmetric phase and the color-flavor-locked superconducting phase. By comparing our result to the lower limit of the core heat capacity established from observations of transiently accreting neutron stars, we show that the heat capacity of MDCDW quark matter is well above that lower limit and hence cannot be ruled out. This result adds to a wealth of complementary investigations, all of which has served to strengthen the viability of a neutron star interior made of MDCDW quark matter. For completeness, we review the contributions to the heat capacity of the main neutron star ingredients at low, high and intermediate densities, with and without the presence of a magnetic field.
description: To appear in PRD
Hortfund von Eberswalde ‒ Archäologie, Herstellungstechnik, Analytik. Vorbericht zu neuen wissenschaftlichen Untersuchungen
Creators: name: Born, Hermann
name: Günther, Detlef
name: Hofmann, Angelika
name: Nawroth, Manfred
name: Pernicka, Ernst
name: Tolstikow, Wladimir P.
name: Velicsanyi, Peter
Publisher: name: Acta Praehistorica et Archaeologica
Year: 2022

description: Acta Praehistorica et Archaeologica, Bd. 47 (2015)
Dynamical topological excitations in parafermion chains
Creators: name: Kaskela, Vilja
name: Lado, J. L.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Topological excitations in many-body systems are one of the paradigmatic cornerstones of modern condensed matter physics. In particular, parafermions are elusive fractional excitations potentially emerging in fractional quantum Hall-superconductor junctions, and represent one of the major milestones in fractional quantum matter. Here, by using a combination of tensor network and kernel polynomial techniques, we demonstrate the emergence of zero modes and finite energy excitations in many-body parafermion chains. We show the appearance of zero energy modes in the many-body spectral function at the edge of a topological parafermion chain, their relation with the topological degeneracy of the system, and we compare their physics with the Majorana bound states of topological superconductors. We demonstrate the robustness of parafermion topological modes with respect to a variety of perturbations, and we show how weakly coupled parafermion chains give rise to in-gap excitations. Our results exemplify the versatility of tensor network methods for studying dynamical excitations of interacting parafermion chains, and highlight the robustness of topological modes in parafermion models.
description: 10 pages, 6 figures
Jago, um criador hiper-realista
Creators: name: Gil, Francisco Baptista
Publisher: name: figshare
Year: 2024
Subjects: classificationCode: 360102
subject: Art history

description: Jago, de seu nome Jacopo Cardillo, é um artista italiano nascido em 1987. Escultor, fotógrafo, videomaker, músico, Jago é tão minucioso nas suas obras que em cada escultura sua é possível ver os pequenos detalhes de um rosto, as linhas da pele, as rugas ou as simples pregas cutâneas. Tudo isso esculpido em mármore branco como a neve, nos mais ínfimos detalhes.
Domain-Specific Lexical Grounding in Noisy Visual-Textual Documents
Creators: name: Yauney, Gregory
name: Hessel, Jack
name: Mimno, David
Publisher: name: arXiv
Year: 2020
Subjects: subject: Computation and Language (cs.CL)
subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: Images can give us insights into the contextual meanings of words, but current image-text grounding approaches require detailed annotations. Such granular annotation is rare, expensive, and unavailable in most domain-specific contexts. In contrast, unlabeled multi-image, multi-sentence documents are abundant. Can lexical grounding be learned from such documents, even though they have significant lexical and visual overlap? Working with a case study dataset of real estate listings, we demonstrate the challenge of distinguishing highly correlated grounded terms, such as "kitchen" and "bedroom", and introduce metrics to assess this document similarity. We present a simple unsupervised clustering-based method that increases precision and recall beyond object detection and image tagging baselines when evaluated on labeled subsets of the dataset. The proposed method is particularly effective for local contextual meanings of a word, for example associating "granite" with countertops in the real estate dataset and with rocky landscapes in a Wikipedia dataset.
Nonlinear Quantum Dynamics
Creators: name: Habib, Salman
name: Bhattacharya, Tanmoy
name: Doherty, Andrew
name: Greenbaum, Benjamin
name: Hopkins, Asa
name: Jacobs, Kurt
name: Mabuchi, Hideo
name: Schwab, Keith
name: Shizume, Kosuke
name: Steck, Daniel
name: Sundaram, Bala
Publisher: name: arXiv
Year: 2005
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The vast majority of the literature dealing with quantum dynamics is concerned with linear evolution of the wave function or the density matrix. A complete dynamical description requires a full understanding of the evolution of measured quantum systems, necessary to explain actual experimental results. The dynamics of such systems is intrinsically nonlinear even at the level of distribution functions, both classically as well as quantum mechanically. Aside from being physically more complete, this treatment reveals the existence of dynamical regimes, such as chaos, that have no counterpart in the linear case. Here, we present a short introductory review of some of these aspects, with a few illustrative results and examples.
description: 13 pages, 3 figures, invited talk at the NATO Advanced Workshop, "Nonlinear Dynamics and Fundamental Interactions," (October, 2004, Tashkent)
Production of $D$-wave states of $\bar b c$ quarkonium at the LHC
Creators: name: Berezhnoy, A. V.
name: Belov, I. N.
name: Likhoded, A. K.
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The hadronic production of $D$-wave states of $\bar b c$ is studied. The relative yield of such states is estimated for kinematic conditions of LHC experiments.
description: The paper is published in Phys. Rev. D. The last version is committed
Relaxation of the Excited Rydberg States of Surface Electrons on Liquid Helium
Creators: name: Kawakami, Erika
name: Elarabi, Asem
name: Konstantinov, Denis
Publisher: name: arXiv
Year: 2020
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We report the first direct observation of the decay of the excited-state population in electrons trapped on the surface of liquid helium. The relaxation dynamics, which are governed by inelastic scattering processes in the system, are probed by the real-time response of the electrons to a pulsed microwave excitation. Comparison with theoretical calculations allows us to establish the dominant mechanisms of inelastic scattering for different temperatures. The longest measured relaxation time is around 1 us at the lowest temperature of 135 mK, which is determined by the inelastic scattering due to the spontaneous two-ripplon emission process. Furthermore, the image-charge response shortly after applying microwave radiation reveals interesting population dynamics due to the multisubband structure of the system.
High-precision elements of double-lined spectroscopic binaries from combined interferometry and spectroscopy. Application to the beta Cephei star beta Centauri
Creators: name: Ausseloos, M.
name: Aerts, C.
name: Lefever, K.
name: Davis, J.
name: Harmanec, P.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present methodology to derive high-precision estimates of the fundamental parameters of double-lined spectroscopic binaries. We apply the methods to the case study of the double-lined beta Cephei star beta Centauri. We also present a detailed analysis of beta Centauri's line-profile variations caused by its oscillations. We point out that a systematic error in the orbital amplitudes, and any quantities derived from them, occurs if the radial velocities of blended component lines are computed without spectral disentangling. This technique is an essential ingredient in the derivation of the physical parameters if the goal is to obtain a precision of only a few percent. We have devised iteration schemes to obtain the orbital elements for systems whose lines are blended throughout the orbital cycle. We find the following parameters for beta Cen: $M_1=10.7\pm 0.1 M_\odot$ and $M_2=10.3\pm 0.1 M_\odot$, an age of $(14.1\pm 0.6)\times 10^6$ years. We deduce two oscillation frequencies for the broad-lined primary of beta Centauri with degrees higher than 2. We propose that our iteration schemes be used in any future derivations of the spectroscopic orbital parameters of double-lined binaries with blended component lines to which disentangling can be successfully applied.
description: 12 pages, 13 figures, accepted for publication in A&A
O Cânone de Policleto
Creators: name: Gil, Francisco Baptista
Publisher: name: figshare
Year: 2024
Subjects: classificationCode: 360102
subject: Art history

description: Policleto, oriundo de Argos (Peloponeso, Grécia), foi seguramente um importante escultor do século V a.C. Muito pouco se sabe sobre a vida e a carreira deste grande talento, mas temos provas das suas obras mais importantes, algumas das quais conhecemos através de cópias romanas.
Unique features of structure in an odd-proton $N \approx Z$ nucleus $^{69}$As
Creators: name: Hasegawa, M.
name: Kaneko, K.
name: Mizusaki, T.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We apply a large-scale shell model to the study of proton-rich odd-mass nuclei with $N \approx Z$. Calculations predict unexpected structure in the $^{69}$As nucleus for which a detailed experiment was recently performed. In this odd-proton nucleus, one neutron competes with one proton for occupying the high-$j$ intruder orbit $g_{9/2}$ in the $9/2_1^+$ state and almost solely occupies the $g_{9/2}$ orbit in other low-lying positive-parity states. The T=0, J=9 one-proton-one-neutron alignment takes place in the negative-parity states with medium-high spins. A unique coexistence of two lowest bands with positive and negative signs of spectroscopic quadrupole moments is predicted.
description: 7 pages, 5 figures, accepted for publication in Pyhs. Rev. C
Lessons of the Leningrad Blockade: Schoolchildren’s Diaries as Sites of Learning, 1941–1943
Creators: name: Peri, Alexis
Publisher: name: Петербургский исторический журнал
Year: 2019
Subjects: Leningrad Blockade
education policy
Narkompros
schools
schoolchildren
diaries

description: This essay examines the importance of education and the idiom of learning in diaries of the Leningrad Blockade. Using the diaries of schoolchildren, as well as of some teachers, this essay argues that learning and studying continued to play a central role in the lives young blokadniki even though the conditions of the Blockade greatly disrupted classroom lessons. Nevertheless, determined to maintain their studies and fulfill the Soviet regime’s didactic mission, some Leningrad schoolchildren used their diaries to design and carry out their own independent programs of study. In the process of undertaking these self-directed studies, the diarists critically engaged with Soviet textbooks and theories of pedagogy as well as with the particular circumstances created by the siege to draw some unique insights and unorthodox conclusions about familiar subjects like mathematics, history, composition, and political education.
Energy funnelling within multichromophore architectures monitored with subnanometre resolution
Creators: name: Cao, Shuiyan
name: Rosławska, Anna
name: Doppagne, Benjamin
name: Romeo, Michelangelo
name: Féron, Michel
name: Chérioux, Frédéric
name: Bulou, Hervé
name: Scheurer, Fabrice
name: Schull, Guillaume
Publisher: name: arXiv
Year: 2021
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: In natural and artificial light-harvesting complexes (LHC) the resonant energy transfer (RET) between chromophores enables an efficient and directional transport of solar energy between collection and reaction centers. The detailed mechanisms involved in this energy funneling are intensely debated, essentially because they rely on a succession of individual RET steps that can hardly be addressed separately. Here, we developed a scanning tunnelling microscopy-induced luminescence (STML) approach allowing visualizing, addressing and manipulating energy funneling within multi-chromophoric structures with sub-molecular precision. We first rationalize the efficiency of the RET process at the level of chromophore dimers. We then use highly resolved fluorescence microscopy (HRFM) maps to follow energy transfer paths along an artificial trimer of descending excitonic energies which reveals a cascaded RET from high- to low-energy gap molecules. Mimicking strategies developed by photosynthetic systems, this experiment demonstrates that intermediate gap molecules can be used as efficient ancillary units to convey energy between distant donor and acceptor chromophores. Eventually, we demonstrate that the RET between donors and acceptors is enhanced by the insertion of passive molecules acting as non-covalent RET bridges. This mechanism, that occurs in experiments performed in inhomogeneous media and which plays a decisive role in fastening RET in photosynthetic systems, is reported at the level of individual chromophores with atomic-scale resolution. As it relies on organic chromophores as elementary components, our approach constitutes a powerful model to address fundamental physical processes at play in natural LHC.
ROMA: a map-making algorithm for polarised CMB data sets
Creators: name: de Gasperis, Giancarlo
name: Balbi, Amedeo
name: Cabella, Paolo
name: Natoli, Paolo
name: Vittorio, Nicola
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present ROMA, a parallel code to produce joint optimal temperature and polarisation maps out of multidetector CMB observations. ROMA is a fast, accurate and robust implementation of the iterative generalised least squares approach to map-making. We benchmark ROMA on realistic simulated data from the last, polarisation sensitive, flight of BOOMERanG.
description: Accepted for publication in Astronomy & Astrophysics. Version with higher quality figures available at http://www.fisica.uniroma2.it/~cosmo/ROMA
[Small-group elicitation session on central vowels and back consonants]
Creators: name: Tchatchouang, Guy
name: Clem, Emily
name: Shen, Alice
name: Hyman, Larry M.
Publisher: name: California Language Archive, University of California, Berkeley
Year: 2021
Subjects: subject: nnz

description: Included text file is a list of the topics covered in the third elicitation session.
Programming resilience: affective circuitry and the ethics of anthropological plasticity
Creators: name: Larrivee, Denis
name: Larrivee, John
name: Canadas, Alejandro
Publisher: name: F1000Research
Year: 2015

description: We explore here the ethical ramifications of neural interventions that seek to enhance desired behavioral constructs, e.g., resilience (Paulus et al, 2014), by modulating affect circuits. Emotions constitute complex functions promoting adaptation (Davidson, 2003). Neuroscientifically, affect circuits are thought to undergird evolutionarily designed, goal directed behaviors that are postulated to align with two core dimensions of approach and withdrawal.

Their evolutionary patrimony extends across a broad spectrum of lineages and their engagement facilitates survival and reproductive, hence, survival value. Complex constructs such as resilience, characterized by the ability to effectively sustain goal directed behavior when challenged by external obstacles, have been proposed to be mediated by the interplay of executive and affective neural networks. Because resilience enables the sustaining of performance in high stress environments recent proposals have considered its enhancement by the modification of underlying neural affect circuitry. Modulation of goal directed affect circuits, however, raises significant epistemological and ontological questions, and thus neuroethical concerns. In humans affect circuits associated with social behaviors are among the strongest goal directed drives and carry high valence value. Empathy, for example, is a powerful interpersonal phenomenon, facilitating parental care of offspring, enabling socializing and living in groups, and altruistic behavior (Decety, 2003). Affect circuits, moreover, fundamentally contribute to decision making and to emotional intelligence (Cacciopa, 1999); thus constituting a primary definitional feature of human anthropology expressed in the well worn phrase “...humans are social animals...” Modification of affect circuits, therefore, can be expected to introduce fundamental changes in human goal seeking, or telos, a philosophical conception concerned with the anthropological status of humans, related to social behavior. Additionally, because differing emotions are oriented toward non-similar goals, coordinated behavior requires that their expression be operationally reconciled, a task thought to be mediated via executive network oversight. The process of reconciliation has, in fact, occupied a central role in various frameworks of integral psychiatric theory, e.g., Wilbers Integrated Psychology, Van Kaam Integrated Psychology, and Stern’s Critical Personalism. Modified circuits may thus alter the ability to achieve emotional integration and so lead to the disruption of formation of ‘normal‘ and ordered social structure. Proposals to enhance resilience by modifying affect circuitry, accordingly, require careful study to assess the possibility of detrimental impact to social behavior.
Self-Similarity and Universality in Rayleigh-Taylor, Boussinesq Turbulence
Creators: name: Vladimirova, Natalia
name: Chertkov, Michael
Publisher: name: arXiv
Year: 2008
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: We report and discuss case study simulations of the Rayleigh-Taylor instability in the Boussinesq, incompressible regime developed to turbulence. Our main focus is on a statistical analysis of density and velocity fluctuations inside of the already developed and growing in size mixing zone. Novel observations reported in the manuscript concern self-similarity of the velocity and density fluctuations spectra inside of the mixing zone snapshot, independence of the spectra of the horizontal slice level, and universality showing itself in a virtual independence of the internal structure of the mixing zone, measured in the re-scaled spatial units, of the initial interface perturbations.
description: 10 pages, 11 figures
The ANTARES Astronomical Time-Domain Event Broker
Creators: name: Matheson, Thomas
name: Stubens, Carl
name: Wolf, Nicholas
name: Lee, Chien-Hsiu
name: Narayan, Gautham
name: Saha, Abhijit
name: Scott, Adam
name: Soraisam, Monika
name: Bolton, Adam S.
name: Hauger, Benjamin
name: Silva, David R.
name: Kececioglu, John
name: Scheidegger, Carlos
name: Snodgrass, Richard
name: Aleo, Patrick D.
name: Evans-Jacquez, Eric
name: Singh, Navdeep
name: Wang, Zhe
name: Yang, Shuo
name: Zhao, Zhenge
Publisher: name: arXiv
Year: 2020
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: We describe the Arizona-NOIRLab Temporal Analysis and Response to Events System (ANTARES), a software instrument designed to process large-scale streams of astronomical time-domain alerts. With the advent of large-format CCDs on wide-field imaging telescopes, time-domain surveys now routinely discover tens of thousands of new events each night, more than can be evaluated by astronomers alone. The ANTARES event broker will process alerts, annotating them with catalog associations and filtering them to distinguish customizable subsets of events. We describe the data model of the system, the overall architecture, annotation, implementation of filters, system outputs, provenance tracking, system performance, and the user interface.
description: 24 Pages, 8 figures, Accepted by AJ
Frank Martin; Birgit Laschke-Hubert und Stefan Nehlig (Hrsg.); Camillo Rusconi. Ein Bildhauer des Spätbarock in Rom
Creators: name: Haist, Iris
Publisher: name: Journal für Kunstgeschichte
Year: 2024

description: Rezension zu: Frank Martin; Birgit Laschke-Hubert und Stefan Nehlig (Hrsg.); Camillo Rusconi. Ein Bildhauer des Spätbarock in Rom (Italienische Forschungen des Kunsthistorischen Institutes in Florenz, Max-Planck-Institut, 4 Folge 12); Berlin und München: Deutscher Kunstverlag 2019; 400 S, 255 Abb ; ISBN 978-3-422-07485-9
description: Journal für Kunstgeschichte, Bd. 24 Nr. 1 (2020): Journal für Kunstgeschichte
Ausgrabungen am Schlossplatz in Berlin-Mitte und die Wiederentdeckung der „Burgsdorff'schen Gruft“
Creators: name: Malliaris, Michael
Publisher: name: Acta Praehistorica et Archaeologica
Year: 2022

description: Acta Praehistorica et Archaeologica, Bd. 47 (2015)
As estátuas dos Tiranicidas
Creators: name: Gil, Francisco Baptista
Publisher: name: figshare
Year: 2024
Subjects: classificationCode: 360102
subject: Art history

description: O grupo escultórico conhecido como os Tiranicidas, representa Harmódio e Aristógito. É uma cópia romana de estátuas originais da Grécia antiga que se encontram expostas no Museu Arqueológico de Nápoles, Itália. Datam de 480-470 a.C. e foram encomendadas para substituir o grupo de Tiranicidas destruído por Xerxes aquando da sua invasão de Atenas.
The Last of the Finite Loop Amplitudes in QCD
Creators: name: Bern, Zvi
name: Dixon, Lance J.
name: Kosower, David A.
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We use on-shell recursion relations to determine the one-loop QCD scattering amplitudes with a massless external quark pair and an arbitrary number (n-2) of positive-helicity gluons. These amplitudes are the last of the unknown infrared- and ultraviolet-finite loop amplitudes of QCD. The recursion relations are similar to ones applied at tree level, but contain new non-trivial features corresponding to poles present for complex momentum arguments but absent for real momenta. We present the relations and the compact solutions to them, valid for all n. We also present compact forms for the previously-computed one-loop n-gluon amplitudes with a single negative helicity and the rest positive helicity.
description: 45 pages, revtex, 7 figures, v2 minor corrections
Supersymmetric Janus solutions in $ω$-deformed N=8 gauged supergravity
Creators: name: Karndumri, Parinya
name: Maneerat, Chawakorn
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We give a large class of supersymmetric Janus solutions in $ω$-deformed (dyonic) $SO(8)$ maximal gauged supergravity with $ω=\fracπ{8}$. Unlike the purely electric counterpart, the dyonic $SO(8)$ gauged supergravity exhibits a richer structure of $AdS_4$ vacua with $N=8,2,1,1$ supersymmetries and $SO(8)$, $U(3)$, $G_2$ and $SU(3)$ symmetries, respectively. Similarly, domain walls interpolating among these critical points show a very rich structure as well. In this paper, we show that this gauged supergravity also accommodates a number of interesting supersymmetric Janus solutions in the form of $AdS_3$-sliced domain walls asymptotically interpolating between the aforementioned $AdS_4$ geometries. These solutions could be holographically interpreted as two-dimensional conformal defects within the superconformal field theories (SCFTs) of ABJM type dual to the $AdS_4$ vacua. We also give a class of solutions interpolating among the $SO(8)$, $G_2$ and $U(3)$ $AdS_4$ vacua in the case of $ω=0$ which have not previously appeared in the presently known Janus solutions of electric $SO(8)$ gauged supergravity.
description: 29 pages, 16 figures, more solutions and some clarification added, presentation improved
Discrete Darboux system with self-consistent sources and its symmetric reduction
Creators: name: Doliwa, Adam
name: Lin, Runliang
name: Wang, Zhe
Publisher: name: arXiv
Year: 2020
Subjects: subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: The discrete non-commutative Darboux system of equations with self-consistent sources is constructed, utilizing both the vectorial fundamental (binary Darboux) transformation and the method of additional independent variables. Then the symmetric reduction of discrete Darboux equations with sources is presented. In order to provide a simpler version of the resulting equations we introduce the $τ/σ$ form of the (commutative) discrete Darboux system. Our equations give, in continuous limit, the version with self-consistent sources of the classical symmetric Darboux system.
description: 17 pages
One-loop corrections to the processes $e^+e^- \to γ, Z \to J/ψ~η_c$ and $e^+e^- \to Z \to J/ψ~J/ψ$
Creators: name: Berezhnoy, A. V.
name: Belov, I. N.
name: Poslavsky, S. V.
name: Likhoded, A. K.
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The cross section values of $J/ψ η_c$ and $J/ψ J/ψ$ production in $e^+e^-$ annihilation are estimated within one-loop approximation near $Z$ pole, as well as at higher energies. Both intermediate bosons, $γ$ and $Z$, are taken into account. It is shown that at $Z$ mass the NLO contribution increases the cross-section values by 3.5 times.
description: In this version the quality of the text is improved as the manuscript was thoroughly proofread. The physical content remains the same
ТУРЛИ ЮРАК НУҚСОНЛАРИ КУЗАТИЛГАН БЕМОРЛАР ИММУН СТАТУСИ ТАВСИФИ
Creators: name: Хамдамов, Бахтиёр
name: Ахмедов, Низом
Publisher: name: Zenodo
Year: 2024

description: Бугунги кунда организмда кечадиган ҳар қандай патологик ҳолатларда иммун тизимининг иштироки шубҳа туғдирмайди, бу юқумли жараён бўлсин, йирингли-ялиғланиш жараёни бўлсин, барчасида иммун тизимининг иштироки мавжуд. Ушбу патологик ҳолатларда иммун тизими махсус ва махсус бўлмаган резистенглик омиллари миқдорий ҳамда сифатий ўзгаришлари нафақат диагностик, балки прогностик аҳамиятга ҳам эга.
title: Particle acceleration using a high intensity Laser facility and the role of gas dynamics
title: Επιτάχυνση σωματιδίων με τη χρήση διάταξης Laser υψηλής έντασης και ο ρόλος της αεριοδυναμικής
Creators: name: Ανδριανακη Γεωργια
Publisher: name: Technical University of Crete
Year: 2023

description: Particle acceleration can be achieved by the use of high-power, ultra-short laser pulses. When such a pulse is focused in a gaseous target under high vacuum conditions, electrons are accelerated in the MeV range at the laser propagation direction. The acceleration is based on a mechanism known as Laser WakeField Acceleration (LWFA). Simultaneously electrons oscillate in the wakefield and emit x-ray photons. This radiation is known as Betatron and is also directional.
The gas profile plays a very important role in both LWFA and Betatron mechanisms. In this dissertation new nozzles have been designed, to guide the gas flow during the experiment. Based on Computational Fluid Dynamics (CFD) simulations the nozzles were then constructed via 3D printing. Their performance was evaluated via interferometry and afterwards, some of them were used for particle acceleration experiments.

description: Η επιτάχυνση σωματιδίων με τη χρήση ενός υπερ-ισχυρού λέιζερ εξετάζεται σε αυτή τη διατριβή. Όταν ένα υπέρ-ισχυρό λέιζερ, με πολύ μικρή διάρκεια παλμού εστιάζεται σε συνθήκες κενού σε ένα πίδακα αερίου, τότε ο μηχανισμός Laser WakeField Acceleration (LWFA) λαμβάνει χώρα και ηλεκτρόνια επιταχύνονται στην κατεύθυνση διάδοσης του λέιζερ, φτάνοντας ενέργειες εκατοντάδων MeV. Ταυτόχρονα, καθώς τα ηλεκτρόνια ταλαντώνονται, εκπέμπουν φωτόνια στην περιοχή ακτίνων-χ, μια ακτινοβολία γνωστή ως Βήτατρον.
Ο ρόλος του αερίου στους 2 παραπάνω μηχανισμούς είναι σημαντικός. Στα πλαίσια αυτής της διατριβής σχεδιάστηκαν και κατασκευάστηκαν ακροφύσια για να διαμορφώσουν τη ροή του αερίου κατά τη διεξαγωγή του πειράματος. Ο σχεδιασμός έγινε με βάση υδροδυναμικές προσομοιώσεις. Τα ακροφύσια κατασκευάστηκαν με τη μέθοδο 3διάστατης εκτύπωσης και αξιολογήθηκαν με τη μέθοδο της συμβολομετρίας. Στη συνέχεια κάποια από αυτά χρησιμοποιήθηκαν σε πειράματα για την επιτάχυνση σωματιδίων.
Core Stabilization Exercise and Movement System Impairment Approaches for Patients with Movement Control Impairment: A Review Article
Creators: name: Peemongkon Wattananona
name: Prasert Sakulsriprasertb
name: Khompakorn Limpasutirachataa
Publisher: name: Research and Technology Transfer Affairs Division
Year: 2015
Subjects: Movement control impairment,Core stabilization,Movement system impairment approach

description: 4, 20, KKU Research Journal
Gauss Decomposition of the Yangian Y(gl_{m|n})
Creators: name: Gow, Lucy
Publisher: name: arXiv
Year: 2006
Subjects: subject: Quantum Algebra (math.QA)
subject: Mathematical Physics (math-ph)
subject: FOS: Mathematics
subject: FOS: Physical sciences
subject: 17B37

description: We describe a Gauss decomposition for the Yangian Y(gl_{m|n}) of the general linear Lie superalgebra. This gives a connection between this Yangian and the Yangian of the classical Lie superalgebra Y(A(m-1,n-1)) (with m and n not equal) defined and studied in papers by Stukopin, and suggests natural definitions for the Yangians Y(sl_{n|n}) and Y(A(n,n)). We also show that the coefficients of the quantum Berezinian generate the centre of Y(gl_{m|n}). This was conjectured by Nazarov in 1991.
description: 27 pages. Small corrections have been made throughout. Some new results have been added
The $^{229}$Th isomer: prospects for a nuclear optical clock
Creators: name: von der Wense, Lars
name: Seiferle, Benedict
Publisher: name: arXiv
Year: 2020
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: The proposal for the development of a nuclear optical clock has triggered a multitude of experimental and theoretical studies. In particular the prediction of an unprecedented systematic frequency uncertainty of about $10^{-19}$ has rendered a nuclear clock an interesting tool for many applications, potentially even for a re-definition of the second. The focus of the corresponding research is a nuclear transition of the $^{229}$Th nucleus, which possesses a uniquely low nuclear excitation energy of only $8.12\pm0.11$ eV ($152.7\pm2.1$ nm). This energy is sufficiently low to allow for nuclear laser spectroscopy, an inherent requirement for a nuclear clock. Recently, some significant progress toward the development of a nuclear frequency standard has been made and by today there is no doubt that a nuclear clock will become reality, most likely not even in the too far future. Here we present a comprehensive review of the current status of nuclear clock development with the objective of providing a rather complete list of literature related to the topic, which could serve as a reference for future investigations.
Scheme for sharing classical information via tripartite entangled states
Creators: name: Xue, Zheng-Yuan
name: Yi, You-Min
name: Cao, Zhuo-Liang
Publisher: name: arXiv
Year: 2005
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We investigate schemes for quantum secret sharing and quantum dense coding via tripartite entangled states. We present a scheme for sharing classical information via entanglement swapping using two tripartite entangled GHZ states. In order to throw light upon the security affairs of the quantum dense coding protocol, we also suggest a secure quantum dense coding scheme via W state in analogy with the theory of sharing information among involved users.
description: 4 pages, no figure. A complete rewrritten vession, accepted for publication in Chinese Physics
Importance of mirror modes in binary black hole ringdown waveform
Creators: name: Dhani, Arnab
Publisher: name: arXiv
Year: 2020
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: The post-merger signal in binary black hole merger is described by linear, black-hole perturbation theory. Historically, this has been modeled using the dominant positive-frequency (corotating) fundamental mode. Recently, there has been a renewed effort in modeling the post-merger waveform using higher, positive-frequency overtones in an attempt to achieve greater accuracy in describing the waveform at earlier times using linear perturbation theory. It has been shown that the inclusion of higher overtones can shift the linear regime to the peak of $(l,m)=(2,2)$ spherical harmonic mode. In this work, we show that the inclusion of negative-frequency (counterrotating) modes, called 'mirror' modes, extends the validity of linear perturbation theory to even earlier times, with far lower systematic uncertainties in the model in recovering the remnant parameters at these early times. A good description of the signal at early times also enables for a greater signal-to-noise ratio to be accumulated in the ringdown phase, thereby, allowing for a more accurate measurement of remnant parameters and tests of general relativity.
Multiscale numerical study of tempered martensitic grade 91 (P) steel at high shear strain
Creators: name: A. Youssef, Antony
Publisher: name: University of Limerick
Year: 2024
Subjects: classificationCode: 40
subject: Engineering

description: Tempered martensitic steel Grade 91 with 9% wt. Cr and 1% wt. Mo (P91) has been developed to have high strength, good corrosion, and creep resistance at high temperatures, as well as good weldability. This alloy is mainly used for power plant components which face harsh operating conditions of stress and temperature.Early failures have been reported in some P91 components. A multi-length scale study and model of P91 at a high deformation level will help understand the reasons behind these failures as well as create a computational lifetime prediction tool, based on creep damage calculations. A shear specimen has been designed, based on ASTM (B831–05), to achieve uniform shear strains (> 30%) while minimising out-of-plane deformation to allow for microstructure analysis using ex-situ electron backscattering diffraction (EBSD). This study is aimed at developing a multi-length scale finite element model, as shown in Figure 0.1, which can capture the deformation of P91. Here, the macro-scale deformation is modelled using an isotropic hardening J2 (von Mises) plasticity model while a crystal plasticity model is used for modelling the micro-scale deformation.The FE model is validated at a range of strain levels, up to 30%, through EBSD, digital image correlation (DIC) and force-displacement measurements, carried out as a separate part of the project1
Improving the treatment of degenerative diseases using autologous bone marrow derived stem cells
Creators: name: Chahine, Nassim Abi
Publisher: name: F1000Research
Year: 2015

description: This work presents my own experience and results in treating intractable and unresponsive to conventional therapies hopeless cases using auto-grafting techniques. Clearly shown patients are currently my patients who have declared their full written consent to publish their personal photos and results.
A fast spectral method for electrostatics in doubly-periodic slit channels
Creators: name: Maxian, Ondrej
name: Peláez, Raul P.
name: Greengard, Leslie
name: Donev, Aleksandar
Publisher: name: arXiv
Year: 2021
Subjects: subject: Numerical Analysis (math.NA)
subject: FOS: Mathematics
subject: 65N35, 78M22

description: We develop a fast method for computing the electrostatic energy and forces for a collection of charges in doubly-periodic slabs with jumps in the dielectric permittivity at the slab boundaries. Our method achieves spectral accuracy by using Ewald splitting to replace the original Poisson equation for nearly-singular sources with a smooth far-field Poisson equation, combined with a localized near-field correction. Unlike existing spectral Ewald methods, which make use of the Fourier transform in the aperiodic direction, we recast the problem as a two-point boundary value problem in the aperiodic direction for each transverse Fourier mode, for which exact analytic boundary conditions are available. We solve each of these boundary value problems using a fast, well-conditioned Chebyshev method. In the presence of dielectric jumps, combining Ewald splitting with the classical method of images results in smoothed charge distributions which overlap the dielectric boundaries themselves. We show how to preserve spectral accuracy in this case through the use of a harmonic correction which involves solving a simple Laplace equation with smooth boundary data. We implement our method on Graphical Processing Units, and combine our doubly-periodic Poisson solver with Brownian Dynamics to study the equilibrium structure of double layers in binary electrolytes confined by dielectric boundaries. Consistent with prior studies, we find strong charge depletion near the interfaces due to repulsive interactions with image charges, which points to the need for incorporating polarization effects in understanding confined electrolytes, both theoretically and computationally.
description: 60 pages, 7 figures
The Monge problem for supercritical Mane potentials on compact manifolds
Creators: name: Bernard, Patrick
name: Buffoni, Boris
Publisher: name: arXiv
Year: 2005
Subjects: subject: Dynamical Systems (math.DS)
subject: Optimization and Control (math.OC)
subject: FOS: Mathematics
subject: 49Q20, 37J50, 35F20

description: We prove the existence of an optimal map for the Monge problem when the cost is a supercritical Mane potential on a compact manifold. Supercritical Mane potentials form a class of costs which generalize the Riemannian distances. We describe new links between this transportation problem and viscosity subsolutions of the Hamilton-Jacobi equation.
Analysis and Forecasting of Fire incidence in Davao City
Creators: name: Villa, Merlito
name: Ceballos, Roel F.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Applications (stat.AP)
subject: FOS: Computer and information sciences
subject: 37M10, 62M10

description: Fire incidence is a big problem for every local government unit in the Philippines. The two most detrimental effects of fire incidence are economic loss and loss of life. To mitigate these losses, proper planning and implementation of control measures must be done. An essential aspect of planning and control measures is prediction of possible fire incidences. This study is conducted to analyze the historical data to create a forecasting model for the fire incidence in Davao City. Results of the analyses show that fire incidence has no trend or seasonality, and occurrences of fire are neither consistently increasing nor decreasing over time. Furthermore, the absence of seasonality in the data indicate that surge of fire incidence may occur at any time of the year. Therefore, fire prevention activities should be done all year round and not just during fire prevention month.
Effect of sinusoidal stretching and c48/80 on the morphology of dermal fibroblasts and the mechanical response of skin
Creators: name: Martel, Hélène
Publisher: name: University of British Columbia
Year: 2009

description: Dermal fibroblasts are connected to each other and to elements of the extracellular matrix (ECM). In vitro studies using fibroblasts grown in collagen gels have demonstrated that fibroblasts are able to deform the gel via cell adhesions. The purpose of this project was to investigate qualitatively the effect of sinusoidal stretching of fresh strips of skin on both the mechanical response of the tissue and the morphology of the fibroblasts. These investigations were carried out for skin soaked in a physiological solution (Kreb's buffer) with and without addition of a mast cell degranulating material, compound 48/80 (C48/80). Two by 10 millimeters strips of skin were removed from the back of 3 male rats. Skin samples were either only soaked in Kreb's buffer in the presence or absence of C48/80, or simultaneously soaked and intermittently sinusoidally stretched in Kreb's buffer in the presence or absence of C48/80. Controls consisted of skin samples fixed immediately after excision from the rats or samples only soaked in buffer. All tissues were fixed and processed for transmission electron microscopy. Morphometric analysis of the relative surface area of fibroblast cytoplasmic extensions and cell bodies showed that sinusoidal stretching of rat skin results in the retraction of fibroblast cytoplasmic extensions and "rounding up" of the cells. Incubation with C48/80 alone had no apparent effect on fibroblast cytoplasmic extensions and morphology. The measurement of tension during sinusoidal stretching in Kreb's buffer with or without addition of C48/80 demonstrated that the tension has a tendency to decrease as the number of sine wave cycles and stretching sequences increased. In addition, during the 14.33 minute interval between two successive stretching sequences the tissue demonstrated recovery of tension. The decrease in tension observed as a result of biomechanical experiments along with the "rounding up" of fibroblasts demonstrated in the morphological study are consistent with the hypothesis that cell adhesions play a role in the mechanical response of the tissue. The biomechanical and morphological results, however, did not support the hypothesis that C48/80 alone induces lost of fibroblast adhesions.