cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
IMAGING MULTIMODALE PET/TC
 IN CAMPO PRECLINICO:
STUDIO DI UN MODELLO MURINO
DI INFARTO DEL MIOCARDIO
Creators: name: Gargiulo, Sara
Publisher: name: Università degli Studi di Napoli Federico II
Year: 2010

description: L’innovativo approccio molecolare ha contribuito significativamente a migliorare la tempestività delle diagnosi, il monitoraggio dell’evoluzione delle malattie e lo sviluppo di nuove terapie. Le patologie cardiovascolari, ed in particolare la cardiomiopatia ischemica, sono attualmente annoverate tra le principali cause di morbilità e mortalità nel mondo occidentale. Pertanto, la comunità scientifica nutre un forte interesse nel perfezionare l’iter diagnostico e sviluppare programmi preventivi e terapeutici innovativi per le cardiopatie. La comprensione della patogenesi e dell’evoluzione dell’ischemia del miocardio e lo sviluppo di nuove terapie si sono evolute di pari passo con la sperimentazione biomedica sui modelli animali. Le potenzialità di manipolazione genetica nei roditori da laboratorio hanno consentito di migliorare la comprensione di fondamentali aspetti genetici e fisiopatologici delle malattie cardiovascolari umane. In particolare, la crescente disponibilità di numerosi ceppi di topo (Mus Musculus) geneticamente modificati, ha condotto alla loro progressiva affermazione rispetto ad altri modelli animali. L’imaging preclinico nei topi da laboratorio ha apportato un contributo rilevante alla ricerca cardiovascolare. La traslazione delle metodiche di imaging dal modello animale all’uomo non è semplice ed in particolare, il loro impiego nel topo per lo studio del cuore è complicata da una serie di fattori, come le ridotte dimensioni e l’elevata frequenza cardiaca. Pertanto, gli studi di diagnostica per immagini sul cuore del topo richiedono alta risoluzione spaziale e temporale. Diverse metodiche di imaging, come l’Ecocardiografia, la Tomografia Computerizzata a raggi X (TC), la Risonanza Magnetica (RM), la Tomografia ad Emissione di Positroni (PET) e la Tomografia ad Emissione di Singolo Fotone (SPECT) consentono di studiare in vivo, in modo non invasivo e longitudinale, la morfologia, il metabolismo e la funzionalità cardiaca. In particolare, l’impiego di tecniche di Imaging morfo-funzionale integrato, come PET/TC o PET/RM, permettono di valutare in vivo processi molecolari che avvengono a livello cellulare e contemporaneamente ottenere informazioni anatomiche ad alta risoluzione.
Nonlinear stability of nonautonomous Lotka-Volterra models
Creators: name: De Luca, Roberta
Publisher: name: Università degli Studi di Napoli Federico II
Year: 2010

description: The thesis deals with the study of the asymptotic behaviour of the solutions of nonautonomous Lotka-Volterra models, around the biologically meaningful equilibrium of the classical autonomous system. The Liapunov Direct Method for nonautonomous ODE is used in order to find conditions assuring the (local) asymptotic stability of the equilibrium. When these conditions hold, the system can not admit cycles.
Il partenariato pubblico-privato di tipo contrattuale: le ragioni di fondo dell’introduzione del project financing e le differenze con la concessione di costruzione e gestione di opere pubbliche.
Creators: name: Taglianetti, Giuliano
Publisher: name: Università degli Studi di Napoli Federico II
Year: 2010

description: Il lavoro intende analizzare le peculiarità e le caratteristiche essenziali dei principali strumenti di partenariato pubblico-privato di tipo contrattuale, ossia, la concessione di costruzione e gestione di opera pubblica e la finanza di progetto. Al contempo, mira a sottolineare le differenze tra i suddetti strumenti di partenariato e le ragioni che dovrebbero orientare l’Amministrazione nella scelta del tradizionale affidamento della concessione di opera pubblica e di quello tramite project financing.
Lo scritto si concentra, quindi, sullo studio dei principali modelli di partenariato pubblico-privato di tipo contrattuale di cui si cercherà di individuare la natura e le principali caratteristiche.
Dopo un esame della nozione di Partenariato Pubblico-Privato, vengono analizzati gli aspetti giuridici della tradizionale concessione di costruzione e gestione di opera pubblica partendo dalle ragioni storiche che hanno portato alla sua introduzione.
Soltanto dopo l’analisi dell’istituto della concessione è possibile lo studio della finanza di progetto.
Per comprendere la reale importanza del project financing, infatti, è, senza dubbio, indispensabile la previa analisi dell’istituto da cui esso trae origine e di cui rappresenta una specie applicativa.
Si giunge dunque ad esaminare le caratteristiche economico-finanziarie di una operazione di project financing sottolineando le ragioni per le quali esso è una valida alternativa di finanziamento rispetto alle tradizionali procedure di affidamento delle concessioni.
Individuata la natura giuridica del project financing e della concessione di costruzione e gestione, nonchè il rapporto esistente tra i due istituti, si esaminano le ipotesi di scioglimento del rapporto per fatto del concedente e si affronterà la problematica relativa all’applicabilità dell’articolo 158 del Codice dei Contratti Pubblici alle concessioni di costruzione e gestione.
Ras and its effectors: a double role in regulating cell migration
Creators: name: Ferrari, Maria Carla
Publisher: name: Università degli Studi di Napoli Federico II
Year: 2010

description: Within this work, time-lapse microscopy and quantitative analysis of motion parameters were used to characterize Ras regulation of the phenomena determining directional cell migration. The behaviour of NIH3T3 and NIHRasV12 fibroblasts, expressing RasV12, a constitutively activated variant, was characterized in terms of kinetic, morphological and biochemical features.
Constitutive RasV12 activation results in both morphological changes and increased proliferation and speed, and confers to NIH3T3 cells the ability to close the wound faster in wound healing assays. Since neither increased cell proliferation nor higher speed explain, alone, the accelerated wound closure, other parameters, descriptive of specific aspects of cell motion, such as linearity, persistence and directionality, were quantitatively evaluated. For both NIH3T3 and NIHRasV12 fibroblasts, the wound acts as a directional stimulus, but the presence of constitutively activated RasV12 amplifies the directional response: NIHRasV12 migration is characterized by paths more directional and directed towards the wound. The role of the effectors through which Ras drives directional cell migration, was evaluated by separately blocking two main signaling pathways downstream from Ras, PI3K and MAPK pathway. The inhibition of PI3K pathway reduced speed but not the directional component of cell migration; instead, the selective block of ERK activation showed that directionality, more than speed, is associated with MAPK pathway and strictly depend on ERK phosphorylation.
Immunofluorescence stainings showed that ERK activates at the wound edge immediately after wound. The biochemical analysis, by western blot, of cell extracts enriched with cells located in the proximity of a wound, showed that ERK phosphorylation occurs in a prolonged and biphasic way. Moreover, both peaks of ERK activation resulted dependent on neo-phosphorylation by MEK.
Actin modifications, induced by the wound, are impaired by the inhibitor of ERK activation, in both NIH3T3 and NIHRasV12 fibroblasts, suggesting that the cellular response, responsible for starting and driving directional movement, depend on early ERK activation by Ras, after the wound stimulus.
L'evoluzione legislativa del diritto alla salute
Creators: name: Lemetre, Francesco
Publisher: name: Università degli Studi di Napoli Federico II
Year: 2011

description: L'evoluzione che il concetto di salute ha conosciuto sul versante legislativo, tanto nazionale quanto sovranazionale.Esso ha trasfigurato vieppiù il suo significato: da assenza statica di malattia ad attività dinamica e trasversale di promozione del benessere.
Gamma-ray and Neutrino Signals from Accretion Disk Coronae of Active Galactic Nuclei
Creators: name: Inoue, Yoshiyuki
name: Khangulyan, Dmitry
name: Doi, Akihiro
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: To explain X-ray spectra of active galactic nuclei (AGN), non-thermal activity in AGN coronae such as pair cascade models has been extensively discussed in the past literature. Although X-ray and gamma-ray observations in the 1990s disfavored such pair cascade models, recent millimeter-wave observations of nearby Seyferts establish the existence of weak non-thermal coronal activity. Besides, the IceCube collaboration reported NGC 1068, a nearby Seyfert, as the hottest spot in their 10-yr survey. These pieces of evidence are enough to investigate the non-thermal perspective of AGN coronae in depth again. This article summarizes our current observational understandings of AGN coronae and describes how AGN coronae generate high-energy particles. We also provide ways to test the AGN corona model with radio, X-ray, MeV gamma-ray, and high-energy neutrino observations.
description: Invited review in Galaxies special issue "Searching for Astrophysical Sources of Cosmic Rays, Gamma-Rays and Neutrinos: Real-Time Multimessenger Programs and Theoretical Models". This paper is based on our previous papers arXiv:1904.00554 & 1909.02239
Constraints on the value of the fine structure constant from gravitational thermodynamics
Creators: name: Davies, P. C. W.
Publisher: name: arXiv
Year: 2007
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: In this paper I show how the second law of thermodynamics, generalized to include event horizon area, places interesting constraints on the value of the fine structure constant. A simple analysis leads to the conclusion that classical Dirac and point-like magnetic monopoles could be used to violate the second law, and that GUT monopoles are inconsistent with minicharged particles.
description: 6 pages, no figures, journal publication
UT Austin Villa@Home, 2018
Creators: name: Walker, Nick
name: Jiang, Yuqian
name: Hart, Justin
Publisher: name: Zenodo
Year: 2018
Subjects: RoboCup
Service robotics
RoboCup@Home

description: UT Austin Villa@Home has made significant developments in knowledge representation and reasoning, automatic semantic labeling of maps, and high-performance perception. The Building-Wide Intelligence project develops a fleet of autonomous service robots in a live deployment at UT Austin, and our RoboCup@Home team has both leveraged this research as well as contributed back into this framework. We have also deployed systems from the Human-Centered Robotics Group’s for complex manipulation and control problems such as door opening and person following.
Brownian Motion, "Diverse and Undulating"
Creators: name: Duplantier, Bertrand
Publisher: name: arXiv
Year: 2007
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Soft Condensed Matter (cond-mat.soft)
subject: Mathematical Physics (math-ph)
subject: History and Overview (math.HO)
subject: Probability (math.PR)
subject: Chemical Physics (physics.chem-ph)
subject: History and Philosophy of Physics (physics.hist-ph)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: We describe in detail the history of Brownian motion, as well as the contributions of Einstein, Sutherland, Smoluchowski, Bachelier, Perrin and Langevin to its theory. The always topical importance in physics of the theory of Brownian motion is illustrated by recent biophysical experiments, where it serves, for instance, for the measurement of the pulling force on a single DNA molecule. In a second part, we stress the mathematical importance of the theory of Brownian motion, illustrated by two chosen examples. The by-now classic representation of the Newtonian potential by Brownian motion is explained in an elementary way. We conclude with the description of recent progress seen in the geometry of the planar Brownian curve. At its heart lie the concepts of conformal invariance and multifractality, associated with the potential theory of the Brownian curve itself.
description: 107 pages, 21 figures, expanded and updated version of the article originally published in Einstein, 1905-2005, Poincar\'e Seminar 2005 (Birkh\"auser Verlag, 2006). Original version also available at http://www.birkhauser.ch/3-7643-7435-7
Politically Biased Time Perception and Perspective
Creators: name: Ouellet, Claudie
name: Tétreault, Émie
name: Grondin, Simon
Publisher: name: Brill Online
Year: 2022
Subjects: Ecology not elsewhere classified

description: The main objective of this study was to determine if the estimation of time could be used to reveal an implicit political bias. The study also aimed at determining if a political bias is related to a specific temporal perspective or to other personality factors. The main demonstration is based on a bisection temporal task where the participants were asked to say if the duration of the presentation of a politician’s photo is short or long. There were three independent variables of interest: the location of politicians on the left (liberal) or right (conservative) on the political axis, the emotions expressed on a politician’s photo (joy, anger or neutral), and the political allegiances of the participants. Overall, compared to conditions with neutral faces or faces expressing joy, participants overestimated the duration of faces expressing anger. This effect, however, depends on the political allegiance of the participants. Compared to the neutral face condition, liberal participants overestimated the length of presentation of politicians’ faces in the joy and anger conditions. The results also showed that, compared to the condition in which photos of conservative politicians are presented, conservative participants underestimated the presentation duration of liberal politicians’ photos; such an influence of the orientation of presented politicians was not observed with liberal participants. The results also reveal that conservative participants differed from liberal participants on the future-oriented scale and on the past-positive-oriented scale of the Zimbardo Time Perspective Inventory (ZTPI). The study shows that time perception can be used to reveal a kind of implicit political bias.
The Higgs portal and an unified model for dark energy and dark matter
Creators: name: Bertolami, O.
name: Rosenfeld, R.
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We examine a scenario where the Higgs boson is coupled to an additional singlet scalar field which we identify with a quintessence field. We show that this results in an unified picture of dark matter and dark energy, where dark energy is the zero-mode classical field rolling the usual quintessence potential and the dark matter candidate is the quantum excitation (particle) of the field, which is produced in the universe due to its coupling to the Higgs boson.
description: 5 pages, no figures. New references and acknowledgment added
Quality analysis of online geocoding services for Thai text addresses
Creators: name: Dueanpen Manoruang
name: Duangduen Asavasuthirakul
Publisher: name: Faculty of Engineering, Khon Kaen University
Year: 2019
Subjects: Geocoding
Online service
Quality
Match rate
Positional accuracy

description: Engineering and Applied Science Research, 46, 2, 86-97
Behaviour of ultrasonic properties on SnAs, InTe and PbSb
Creators: name: Devraj Singh
name: Chinmayee Tripathy
name: Paikaray, Rita
name: Mathur, Ashish
name: Wadhwa, Shikha
Publisher: name: Faculty of Engineering, Khon Kaen University
Year: 2019
Subjects: Superconductors
Elastic constants
Ultrasonic properties
Thermal conductivity

description: Engineering and Applied Science Research, 46, 2, 98-105
Alexa Conversations: An Extensible Data-driven Approach for Building Task-oriented Dialogue Systems
Creators: name: Acharya, Anish
name: Adhikari, Suranjit
name: Agarwal, Sanchit
name: Auvray, Vincent
name: Belgamwar, Nehal
name: Biswas, Arijit
name: Chandra, Shubhra
name: Chung, Tagyoung
name: Fazel-Zarandi, Maryam
name: Gabriel, Raefer
name: Gao, Shuyang
name: Goel, Rahul
name: Hakkani-Tur, Dilek
name: Jezabek, Jan
name: Jha, Abhay
name: Kao, Jiun-Yu
name: Krishnan, Prakash
name: Ku, Peter
name: Goyal, Anuj
name: Lin, Chien-Wei
name: Liu, Qing
name: Mandal, Arindam
name: Metallinou, Angeliki
name: Naik, Vishal
name: Pan, Yi
name: Paul, Shachi
name: Perera, Vittorio
name: Sethi, Abhishek
name: Shen, Minmin
name: Strom, Nikko
name: Wang, Eddie
Publisher: name: arXiv
Year: 2021
Subjects: subject: Computation and Language (cs.CL)
subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: Traditional goal-oriented dialogue systems rely on various components such as natural language understanding, dialogue state tracking, policy learning and response generation. Training each component requires annotations which are hard to obtain for every new domain, limiting scalability of such systems. Similarly, rule-based dialogue systems require extensive writing and maintenance of rules and do not scale either. End-to-End dialogue systems, on the other hand, do not require module-specific annotations but need a large amount of data for training. To overcome these problems, in this demo, we present Alexa Conversations, a new approach for building goal-oriented dialogue systems that is scalable, extensible as well as data efficient. The components of this system are trained in a data-driven manner, but instead of collecting annotated conversations for training, we generate them using a novel dialogue simulator based on a few seed dialogues and specifications of APIs and entities provided by the developer. Our approach provides out-of-the-box support for natural conversational phenomena like entity sharing across turns or users changing their mind during conversation without requiring developers to provide any such dialogue flows. We exemplify our approach using a simple pizza ordering task and showcase its value in reducing the developer burden for creating a robust experience. Finally, we evaluate our system using a typical movie ticket booking task and show that the dialogue simulator is an essential component of the system that leads to over $50\%$ improvement in turn-level action signature prediction accuracy.
Dichotomy results for delay differential equations with negative Schwarzian
Creators: name: Liz, Eduardo
name: Röst, Gergely
Publisher: name: arXiv
Year: 2008
Subjects: subject: Dynamical Systems (math.DS)
subject: Classical Analysis and ODEs (math.CA)
subject: FOS: Mathematics
subject: 34K20, 34D45

description: We gain further insight into the use of the Schwarzian derivative to obtain new results for a family of functional differential equations including the famous Wright's equation and the Mackey-Glass type delay differential equations. We present some dichotomy results, which allow us to get easily computable bounds of the global attractor. We also discuss related conjectures, and formulate new open problems.
description: 16 pages, submitted to Chaos,Solitons,Fractals
Electroweak phase transition in MSSM with $U(1)'$ in explicit CP violation scenario
Creators: name: Ham, S. W.
name: OH, S. K.
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The possibility of a strongly first-order electroweak phase transition is established in the minimal supersymmetric standard model with an extra $U(1)'$, where a nontrivial CP violating phase is introduced in its Higgs sector. We find that there is a wide region in the parameter space of the model that allows the strongly first-order electroweak phase transition. The mass of stop quark need not be smaller than the top quark mass to ensure the first-order electroweak phase transition be strong. The effect of the CP violating phase upon the strength of the phase transition is discovered. The strength of the phase transition is reduced when the size of the CP violation is increased. For a given CP violating phase, we find that the model has a larger mass for the lightest Higgs boson when it has a stronger phase transition.
ABITURYENTLAR UCHUN O'QISHGA TAYYORGARLIK SIRLARI
Creators: name: Mirzaakbarov, D.D.
name: Muhammadjonov, M.
Publisher: name: Zenodo
Year: 2023

description: Ushbu ilmiy maqolada abituryentlarning o’qishga kirish oldidan nimalarga e’tibor berishlari to’g’risida umumiy tushunchalar bayon etilgan bo’lib, abituryentlarning o’z ichki imkoniyatlaridan foydalanib, kirish imtihonlariga samarali tayyorgarlik ko’rishlari uchun oltinga teng maslahatlar va aynan xatoga yo’l qo’ymasliklari uchun yangi imkoniyatlar haqida so’z boradi. Talaba bu qo’llanmani o’qib o’zi uchun eng kerakli yo’l qaysiligini bemalol tanlab oladi va o’qishga kirishi uchun salmoqli foydani oladi albatta!
Gamma Rays from Centaurus A
Creators: name: Gupta, Nayantara
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Centaurus A, the cosmic ray accelerator a few Mpc away from us is possibly one of the nearest sources of extremely high energy cosmic rays. We investigate whether the gamma ray data currently available from Centaurus A in the GeV-TeV energy band can be explained with only proton proton interactions. We show that for a single power law proton spectrum, mechanisms of $γ$-ray production other than proton proton interactions are needed inside this radio-galaxy to explain the gamma ray flux observed by EGRET, upper limits by H.E.S.S./CANGAROO-III and the correlated extremely energetic cosmic ray events observed by the Pierre Auger experiment. In future with better $γ$-ray data, simultaneous observation with $γ$-ray and cosmic ray detectors, it would be possible to carry out such studies on different sources in more detail.
description: 7 pages, JCAP in press
Fractal Models for SAR images
Creators: name: Zinno, Ivana
Publisher: name: Università degli Studi di Napoli Federico II
Year: 2011

description: In this thesis the modeling of SAR (Synthetic Aperture Radar) images of natural surfaces described via fractal models is dealt with. A complete theoretical forward model linking the parameters describing the scene observed by the sensor to the stochastic characterization of the relevant SAR image is provided. The inverse problem is treated as well: a SAR image post-processing able to automatically retrieve - operating on an amplitude single SAR image - the fractal parameters of the scene, is presented.
The developed imaging model is based on sound geometrical and electromagnetic models that are combined according to the SAR impulse response function. The power spectral densities of appropriate cuts of the SAR image are evaluated in closed form in terms of the surface fractal parameters. The theoretical results are here conceptually assessed, analytically derived, graphically validated and numerically verified.
Moreover, based on the inversion of the forward theoretical model, an innovative SAR image post-processing for the fractal parameters estimation is implemented. It is firstly tested on simulated SAR images, then it is applied to different types of new generation (i.e. high resolution) SAR images. The generated fractal maps show themselves to be very useful for a wide range of application, e.g. prevention and monitoring of environmental disasters, geodynamic processes interpretation, land classification, rural planning, and so on.
The One-Loop H^2R^3 and H^2(DH)^2R Terms in the Effective Action
Creators: name: Richards, David M.
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We consider the one-loop B^2h^3 and B^4h amplitudes in type II string theory, where B is the NS-NS two-form and h the graviton, and expand to lowest order in alpha'. After subtracting diagrams due to quartic terms in the effective action, we determine the presence and structure of both an H^2R^3 and H^2(DH)^2R term. We show that both terms are multiplied by the usual (t_8t_8\pm{1/8}ε_{10}ε_{10}) factor.
description: 20 pages, 3 figures; corrected typos
Transport Properties of Transition Metal Oxide Thin Films and Interfaces under Light Irradiation
Creators: name: Riaz, Muhammad
Publisher: name: Università degli Studi di Napoli Federico II
Year: 2011

description: Complex oxide materials are special in their ability to show highly diverse electronic properties and go through many different phase transitions, including ferromagnetic, ferroelectric, metal-to-insulator and superconducting. Furthermore, the similarity of crystal structures makes it possible to stack in epitaxial heterostructures layers possessing different functional properties and interacting with each other through electric or magnetic fields, charge transfer, exchange bias, strain, etc, opening the way to the design of almost unlimited multifunctional device concepts. In this context, this thesis is devoted to the transport characterization of transition metal oxides (TMOs) under the external perturbation of a photon field, with special attention dedicated to two quite outstanding cases, that are:
         i)  Pr1-xCaxMnO3 (PCMO), a narrow band manganite showing an insulating behaviour across it’s whole phase diagram, and
         ii) polar-non polar oxide interfaces, where the formation of a high mobility 2-dimensional electron gas (2DEG) in SrTiO3 (STO) is triggered by the deposition of a polar overlayer.
         Both systems are correlated systems, since their electronic properties are dominated by the narrow d-bands of the transition metals, Mn and Ti. STO is insulating, but doped STO has d carriers. The system is for this reason often defined as a 2-dimensional electron liquid (2DEL). In particular, there is a strong current interest arising on the photoconductance properties of both kinds of systems addressed in this thesis. In the first case it is established that by shedding light we do not simply dope the system with photocarriers within a rigid band picture, but we undisclose a hidden state which is quasi-degenerate in energy with the insulating ground state and has a different distribution of its density of states in k space. The second case might well be envisaged as a simple photodoping of STO, but, as we will show in this thesis work, there are some quite intriguing aspects to consider. The effects seen in interfaces is not seen in pure STO, and – furthermore – persistent photoconductivity (PC) with very long decay times (on the time scale of months) and at photon energies far below the STO gap is found. Also in view of the recently suggested phase separation, we can not exclude that something more complex than photodoping is taking place. In a more general framework, the present investigation may be considered as an attempt to add a tile to the wide mosaic of the physics of inhomogeneous states in TMO.
Bound on the anomalous tbW coupling from two-loop contribution to neutron electric dipole moment
Creators: name: Avilez-Lopez, A.
name: Novales-Sanchez, H.
name: Tavares-Velasco, G.
name: Toscano, J. J.
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The two-loop contribution to the electric dipole moment (EDM) and the chromo electric dipole moment (CEDM) of an arbitrary fermion f induced by the most general renormalizable tbW coupling with complex left- and right-handed components (a_L and a_R) is calculated. The analytical expressions are numerically evaluated and the current experimental constraints on the electron, neutron and mercury atom EDMs are used to obtain a bound on the complex phase Im(a^*_La_R). It is found that the most stringent constraint, Im(a^*_La_R)<2.33 X 10^{-2}, arises from the neutron EDM.
description: 13 pages, 3 figures
Large Scale Benchmarking of Broadband Access Networks: Issues, Methodologies, and Solutions
Creators: name: De Donato, Walter
Publisher: name: Università degli Studi di Napoli Federico II
Year: 2011

description: The Internet today counts about 2.1 billion users worldwide, thus representing a highly complex system
on which huge amounts of data are transferred every day over the IP protocol. Most people rely on
Internet connectivity for everyday activities, making broadband access an essential resource, whose
performance have not been widely studied in literature.
On one hand, evaluating IP networks performance is a challenging task which is made even more difficult by the
heterogeneity of underlying protocols and technologies. On the other hand, the complexity of emerging
applications makes it difficult to understand the relation between network and user-perceived performance.
In this thesis we address the evaluation of IP networks performance with a specific focus on broadband access
networks. We start presenting an overview of the Internet scenario with respect to the heterogeneity of access
technologies and the complexity of new generation applications. Hence, we conduct research activities on both
the analysis and characterization of traffic generated by new-generation applications and the identification
of relevant metrics, methodologies, techniques and tools to evaluate network performance.
We conduct a study on the evaluation of broadband access networks performance, in which we propose a taxonomy
of existing approaches and define the guidelines to build an architecture with ideal characteristics to
measure access networks performance on a large scale. As a result of the preceding analysis we identified the
ideal characteristics for an architecture able to evaluate the performance of broadband access networks on a
large scale. Following such guidelines, we designed and implemented two architectures respectively adopting
the router- and client-based approaches, in order to evaluate their potentialities and the eventual advantages
deriving from a combined approach. Thanks to this activity we devised new methodologies and techniques to cope
with several challenges arose during the different phases from the design to the deployment. Thanks to the
data collected through these architectures, we also found some interesting results about real access networks,
by identifying and characterizing relevant issues affecting most of them.
Chlorella sp. extraction and estimation of fuel properties of lipids derived from FFA profiles
Creators: name: Mongkol Tantichantakarun
name: Pakamas Chetpattananondh
name: Sukritthira Ratanawilai
Publisher: name: Faculty of Engineering, Khon Kaen University
Year: 2019
Subjects: Microalgae
Chlorella sp.
Extraction
Crude lipid
Ultrasonic
Biodiesel

description: Engineering and Applied Science Research, 46, 2, 106-113
Additional file 1 of Peer support for people with chronic conditions: a systematic review of reviews
Creators: name: Thompson, Dean M.
name: Booth, Lesley
name: Moore, David
name: Mathers, Jonathan
Publisher: name: figshare
Year: 2022
Subjects: subject: Medicine
subject: Sociology
subject: FOS: Sociology
subject: Science Policy
subject: Mental Health

description: Additional file 1.
Z boson decay to photon plus Kaluza-Klein graviton in large extra dimensions
Creators: name: Allanach, Ben C.
name: Skittrall, Jordan P.
name: Sridhar, K.
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: In the large extra dimensional ADD scenario, Z bosons undergo a one-loop decay into a photon and Kaluza-Klein towers of gravitons/gravi-scalars. We calculate such a decay width, extending previous arguments about the general form of the four-dimensional on-shell amplitude. The amplitudes calculated are relevant to processes in other extra dimensional models where the Standard Model fields are confined to a 4-brane.
description: 47 pages, uses feynmp for diagrams. v2: typographical corrections for letter-sized paper and to correct feynmf parsing error. v3: minor error in polarisation averaging and reference corrected. v4: reflects changes for published version; arithmetic error corrected and reference updated; section on transversality conditions not present in published version retained
Triangular body-cover model of the vocal folds with coordinated activation of the five intrinsic laryngeal muscles
Creators: name: Alzamendi, Gabriel A.
name: Peterson, Sean D.
name: Erath, Byron D.
name: Hillman, Robert E.
name: Zañartu, Matías
Publisher: name: arXiv
Year: 2021
Subjects: subject: Medical Physics (physics.med-ph)
subject: Sound (cs.SD)
subject: Audio and Speech Processing (eess.AS)
subject: Biological Physics (physics.bio-ph)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: J.2.2
subject: 92C10

description: Poor laryngeal muscle coordination that results in abnormal glottal posturing is believed to be a primary etiologic factor in common voice disorders such as non-phonotraumatic vocal hyperfunction. Abnormal activity of antagonistic laryngeal muscles is hypothesized to play a key role in the alteration of normal vocal fold biomechanics that results in the dysphonia associated with such disorders. Current low-order models of the vocal folds are unsatisfactory to test this hypothesis since they do not capture the co-contraction of antagonist laryngeal muscle pairs. To address this limitation, a self-sustained triangular body-cover model with full intrinsic muscle control is introduced. The proposed scheme shows good agreement with prior studies using finite element models, excised larynges, and clinical studies in sustained and time-varying vocal gestures. Simulations of vocal fold posturing obtained with distinct antagonistic muscle activation yield clear differences in kinematic, aerodynamic and acoustic measures. The proposed tool is deemed sufficiently accurate and flexible for future comprehensive investigations of non-phonotraumatic vocal hyperfunction and other laryngeal motor control disorders.
description: Primitive version, 54 pages, 8 figures, 4 tables. The present manuscript has been submitted to the Journal of the Acoustical Society of America (JASA)
Optimal Per-Antenna ADC Bit Allocation in Correlated and Cell-Free Massive MIMO
Creators: name: Verenzuela, Daniel
name: Björnson, Emil
name: Matthaiou, Michail
Publisher: name: arXiv
Year: 2021
Subjects: subject: Information Theory (cs.IT)
subject: FOS: Computer and information sciences

description: In Massive MIMO base stations (BSs), the hardware design needs to balance high spectral efficiency (SE) with low complexity. The level of hardware impairments (HWIs) indicates how strong the signal distortion introduced by hardware imperfections is. In particular, the analog-to-digital converters (ADCs) have an important impact on signal distortion and power consumption. This article addresses the fundamental problem of selecting the optimal hardware quality in the Massive MIMO space. In particular, we examine the optimal HWI and ADC bit allocation per BS antenna to maximize the SE. The results show that in co-located arrays with low channel gain variations across antennas, equal ADC bit allocation is optimal. In contrast, cell-free Massive MIMO systems benefit the most from optimizing the ADC bit allocation achieving improvements in the order of 2 [bit-per-channel-use] per user equipment when using regularized zero-forcing (RZF). In addition, when including the impact of power consumption in cell-free Massive MIMO with RZF, allocating low values of mixed ADC bit resolutions across the BS antennas can increase the energy efficiency up to 30% compared to equal ADC bit allocation.
description: To appear in IEEE Transactions on Communications, 14 pages, 4 figures
A power line local area network : design and implementation
Creators: name: Ma, Audivox Hing Ting
Publisher: name: University of British Columbia
Year: 2010

description: This thesis presents the development and implementation of two fundamental communication sublayers, medium access and logical link, for a new Local Area Network (LAN) which utilizes the intra-building power distribution circuit as physical transmission medium. This medium provides a low cost means for data communications with a high degree of portability. A low-to-medium data rate and a relatively high error rate are two of the major disadvantages associated with the use of the medium. The Logical Link Control (LLC) protocol adopted is a modified version of the IEEE 802.2 protocol; whereas, the Medium Access Control (MAC) protocol used is a simple hub polling scheme. For efficiency reason, both LLC and MAC sublayers are implemented in the kernel of the UNIX¹ operating system. The schemes used, justifications for the decisions made and their implementations are discussed in details in the thesis. The performance of the power line LAN formed with four Sun workstations² using modems with a data rate of 14.4 kilo-bit per second is measured and analyzed. ¹UNIX is a trademark of AT & T Bell laboratories. ²Sun workstation is a trademark of Sun Microsystems.
THE ROLE OF MOTIVATION IN THE PROFESSIONAL DEVELOPMENT OF ENGLISH LANGUAGE STUDENTS
Creators: name: Alibekova, Mahzuna
Publisher: name: Zenodo
Year: 2023

description: Thіs artіcle dіscusses pedagogіcal aspects, unіqueness and methodology of professіonal competence development and role of motіvatіon іn hіgher educatіon іnstіtutіons.
From Cosmicflows distance moduli to unbiased distances and peculiar velocities
Creators: name: Hoffman, Yehuda
name: Nusser, Adi
name: Valade, Aurelien
name: Libeskind, Noam I.
name: Tully, R. Brent
Publisher: name: arXiv
Year: 2021
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Surveys of galaxy distances and radial peculiar velocities can be used to reconstruct the large scale structure. Other than systematic errors in the zero-point calibration of the galaxy distances the main source of uncertainties of such data are errors on the distance moduli, assumed here to be Gaussian and thus turn into lognormal errors on distances and velocities. Naively treated, it leads to spurious nearby outflow and strong infall at larger distances. The lognormal bias is corrected here and tested against mock data extracted from a $Λ$CDM simulation, designed to statistically follow the grouped Cosmicflows-3 (CF3) data. Considering a subsample of data points, all of which have the same true distances or same redshifts, the lognormal bias arises because the means of the distributions of observed distances and velocities are skewed off the means of the true distances and velocities. Yet, the medians are invariant under the lognormal transformation. That invariance allows the Gaussianization of the distances and velocities and the removal of the lognormal bias. This Bias Gaussianization correction (BGc) algorithm is tested against mock CF3 catalogs. The test consists of a comparison of the BGC estimated with the simulated distances and velocities and of an examination of the Wiener filter reconstruction from the BGc data. Indeed, the BGc eliminates the lognormal bias. The estimation of Hubble's ($H_{0}$) constant is also tested. The residual of the BGc estimated $H_{0}$ from the simulated values is $0.6 \pm 0.7 {\rm kms}^{-1}{\rm Mpc}^{-1}$ and is dominated by the cosmic variance. The BGc correction of the actual CF3 data yields $H_{0} = 75.8 \pm 1.1 {\rm kms}^{-1}{\rm Mpc}^{-1}$ .
description: 14 pages, 16 figures, accepted for publication in MNRAS
Scaling limits of a tagged particle in the exclusion process with variable diffusion coefficient
Creators: name: Jara, Milton
name: Goncalves, Patricia
Publisher: name: arXiv
Year: 2008
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Probability (math.PR)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: We prove a law of large numbers and a central limit theorem for a tagged particle in a symmetric simple exclusion process in the one-dimensional lattice with variable diffusion coefficient. The scaling limits are obtained from a similar result for the current through -1/2 for a zero-range process with bond disorder. For the CLT, we prove convergence to a fractional Brownian motion of Hurst exponent 1/4.
description: 9 pages
The inhibition of Carica papaya leaves extract on the corrosion of cold worked and annealed mild steel in HCl and NaOH solutions using a weight loss technique
Creators: name: Nwigwe, Samuel Uzoma
name: Umunakwe, Reginald
name: Mbam, Stephen Ogbonna
name: Okon5), Moses YiboweiKooffreh
Publisher: name: Faculty of Engineering, Khon Kaen University
Year: 2019
Subjects: Mild steel
Carica papaya
Leaf extract
Corrosion
Inhibition

description: Engineering and Applied Science Research, 46, 2, 114-119
Multicanonical reweighting for the QCD topological susceptibility
Creators: name: Jahn, P. Thomas
name: Junnarkar, Parikshit M.
name: Moore, Guy D.
name: Robaina, Daniel
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: We introduce a reweighting technique which allows for a continuous sampling of temperatures in a single simulation and employ it to compute the temperature dependence of the QCD topological susceptibility at high temperatures. The method determines the ratio of susceptibility between any two temperatures within the explored temperature range. We find that the results from the method agree with our previous determination and that it is competitive with but not better than existing methods of determining the temperature derivative of the susceptibility. The method may also be useful in exploring the temperature dependence of other thermodynamical observables in QCD in a continuous way.
description: 8 pages in 2-column format, including 5 figures and 2 tables
Intersections of polynomial orbits, and a dynamical Mordell-Lang conjecture
Creators: name: Ghioca, Dragos
name: Tucker, Thomas J.
name: Zieve, Michael E.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Number Theory (math.NT)
subject: Algebraic Geometry (math.AG)
subject: Dynamical Systems (math.DS)
subject: FOS: Mathematics
subject: 14G25 (Primary) 37F10, 11C08 (Secondary)

description: We prove that if nonlinear complex polynomials of the same degree have orbits with infinite intersection, then the polynomials have a common iterate. We also prove a special case of a conjectured dynamical analogue of the Mordell-Lang conjecture.
description: 19 pages; to appear in Inventiones Mathematicae; in this version we modified the exposition in view of the referee's comments
Supernova SN2006gy as a first ever Quark Nova?
Creators: name: Leahy, Denis
name: Ouyed, Rachid
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The most luminous Supernova SN2006gy (more than a 100 times brighter than a typical supernova) has been a challenge to explain by standard models. For example, pair instability supernovae which are luminous enough seem to have too slow a rise, and core collapse supernovae do not seem to be luminous enough. We present an alternative scenario involving the quark-nova phenomenon (an explosive transition of the newly born neutron star to a quark star) in which a second explosion (delayed) occurs inside the ejecta of a normal supernova. The reheated supernova ejecta can radiate at higher levels for longer periods of time primarily due to reduced adiabatic expansion losses, unlike the standard supernova case. We find an encouraging match between the resulting lightcurve and that observed in the case of SN2006gy suggesting that we might have at hand the first ever signature of a quark-nova. Successful application of our model to SN2005gj and SN2005ap is also presented.
description: Version accepted for publication in MNRAS (added R-band calculations and provided further discussion on the late plateau in SN2006gy; also extended discussion on the Quark-Nova and SNe connection)
Mirror-assisted backscattering interferometry to measure the first-order correlation function of the light emitted by quantum scatterers
Creators: name: Dias, Pablo Gabriel Santos
name: Fernandez, Marcia Frometa
name: Magnani, Pedro Henrique Nantes
name: Theophilo, Klara Rhaissa Burlamaqui
name: Hugbart, Mathilde
name: Courteille, Philippe Wilhelm
name: Teixeira, Raul Celistrino
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: We present a new method to obtain the first-order temporal correlation function, $g^{(1)} (τ)$, of the light scattered by an assembly of point-like quantum scatterers, or equivalently its spectral power distribution. This new method is based on the mirror-assisted backscattering interferometric setup. The contrast of its angular fringes was already linked in the past to the convolution of $g^{(1)} (τ)$ for different Rabi frequencies taking into account the incoming spatial intensity profile of the probe beam, but we show here that by simply adding a half waveplate to the interferometer in a specific configuration, the fringe contrast becomes $g^{(1)} (τ)$ of the light scattered by atoms, which are now all subjected to the same laser intensity. This new method has direct application to obtain the saturated spectrum of quantum systems. We discuss some non-trivial aspects of this interferometric setup, and propose an analogy with a double Mach-Zehnder interferometer.
Variational Principle Involving the Stress Tensor in Elastodynamics
Creators: name: Gouin, Henri
name: Debieve, Jean-François
Publisher: name: arXiv
Year: 2008
Subjects: subject: Classical Physics (physics.class-ph)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: In the mechanics of inviscid conservative fluids, it is classical to generate the equations of dynamics by formulating with adequate variables, that the pressure integral calculated in the time-space domain corresponding to the motion of the continuous medium is stationary. The present study extends this principle to the dynamics of large deformations for isentropic motions in thermo-elastic bodies: we use a new way of writing the equations of motion in terms of potentials and we substitute the trace of the stress tensor for the pressure term.
description: The decomposition of the stress tensor proposed in this article (1986) for a hyperelastic medium is now widely used in the literature. 16 pages
Identity activation structural tolerance online sequential circular extreme learning machine for highly dimensional data
Creators: name: Sarutte Atsawaraungsuk
name: Tatpong Katanyukul
name: Pattarawit Polpinit
Publisher: name: Faculty of Engineering, Khon Kaen University
Year: 2019
Subjects: Extreme learning machine
Circular extreme machine
Online sequential?Quadratic function

description: Engineering and Applied Science Research, 46, 2, 120-129