cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Ab initio SCF MO study of H₆SI₂O₇ at simulated high pressure
Creators: name: Ross, Nancy Lee
Publisher: name: University of British Columbia
Year: 2010

description: Molecular orbital calculations have been successively applied to mineralogical studies of equilibrium molecular geometry, electronic charge distributions, electronic spectra and bulk modulus calculations. To date, these studies have modelled bonding at atmospheric pressure. With the ever increasing interest in high pressure phases and mantle mineralogy, bonding studies of molecular groups at simulated high pressure can be an invaluable aid to understanding high pressure crystal chemistry, bond energetics and electronic spectra. This investigation tests the feasibility of various models to simulate pressure in ab initio SCF MO calculations on common metal-oxygen polyhedra. Pressure is simulated in the cluster, H₆Si₂O₇, by systematically stepping helium atoms directed^ along the Si-O bridging vectors toward the bridging oxygen. Changes in the Si-0 bond lengths, SiOSi angles and Si-0 force constants are monitored with increasing pressure. For an increase of 60 kbar pressure, the Si-0 bond length and SiOSi angle decrease 0.30% and 4.5%, respectively, which compares well with the 0.30% and 6.6% decrease observed in c-quartz for a similar increment of pressure. The linear correlation of Si-0 bond length and -sec(SiOSi), known to occur at one bar, holds at elevated pressure. In addition, the Si-0 stretching and SiOSi bending force constants show a percentage increase in the ratio 1:6 up to an estimated pressure of 140 kbar.
Perturbative Estimates of the Eigenfunctions of the Non-forward BFKL Kernel
Creators: name: Ross, D. A.
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We discuss, within the context of first order perturbation theory, the correction to the NLO BFKL wavefuncyion for scattering processes with non-zero momentum transfer, arising from the fact that in NLO the kernel is not covariant under conformal transformations.
description: 8 pages, 6 figures
Interferenze. Il progetto mald’è tra scena e video
Creators: name: D'Arienzo, Grazia
Publisher: name: Dipartimento delle Arti - Alma Mater Studiorum - Università di Bologna
Year: 2014
Subjects: D'Arienzo; Mald'è; Matilde De Feo; performance e multimedia

description: ABSTRACT- IT

Le operazioni di innesto tecnologico all’interno dell’evento performativo, così come i tentativi di inglobamento della scena nel video, sono negli ultimi anni al centro di attente disamine critiche sul fenomeno delle forme ibride e sull’interazione tra live e medializzato. All’interno del dibattito ancora in fieri su tali pratiche, il progetto preso in esame nell’articolo − mald’è − occupa senza dubbio una posizione singolare, ponendosi come tentativo di sintesi tra l’esperienza di attrice di Matilde De Feo e quella di filmaker e multimedia designer di Mario Savinio. Oggetto della mia analisi sono, in particolare, le dinamiche contaminative che caratterizzano una produzione audiovisiva (Non io) e uno spettacolo multimediale (Il principio di indeterminazione di Heisenberg) tesi rispettivamente alla rielaborazione in chiave “elettronica” di un testo beckettiano e all’integrazione organica tra la proiezione video e il teatro di parola di Dario Fo e Franca Rame.

ABSTRACT- EN

The operations of technology implementation within the theatrical performance, as well as the attempt of embedding the scene into video, have been core to the debate surrounding the hybrid forms phenomenon and the interaction between live and media-driven performances. Within the debate on these practices, the project taken under consideration in the article −  mald'è − has undoubtedly a peculiar feature as it tries to be a synthesis of the acting experience of Matilde de Feo with filmakers' and multimedia directors' Mario Savinio. Specifically, the main objects of my analysis are the contaminating dynamics of an audio-visual production (Non io) and a digital performance (Il principio di indeterminazione di Heisenberg) which aim, respectively, to the electronic remediation of a Beckettian drama and to the organic integration between the video projection and a monologue of Dario Fo and Franca Rame.
description: Antropologia e Teatro. Rivista di Studi, No 5 (2014)
STRESS RESISTANCE AND COPING BEHAVIOR IN ADOLESCENTS WITH CHRONIC GASTRODUODENITIS
Creators: name: Kireeva, T.
name: Kuvshinnikova, M.
Publisher: name: Norwegian Journal of Development of the International Science
Year: 2021
Subjects: gastroduodenitis
adolescents
stress resistance
mental defenses
coping strategies

description: In Russia, diseases of the digestive organs occupy the main place in the structure of somatic pathology of childhood. Psychological prerequisites for the occurrence of gastroenterological diseases are most often prolonged overstrain, being in a state of anxiety or fear, a reduced level of stress resistance, immature mental defenses and unconstructive strategies for coping with stress. As a result of the study, it was revealed that adolescents with chronic gastroduodenitis are characterized by low stress resistance, in stressful situations they tend to displace negative experiences by removing their causes from consciousness, they are characterized by postponing problem solving, lack of self-control and control over their behavior, they do not plan their actions and have a narrow range of possible behaviors.
An approximation to density functional theory for an accurate calculation of band-gaps of semiconductors
Creators: name: Ferreira, Luiz G.
name: Marques, Marcelo
name: Teles, Lara K.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The local-density approximation (LDA), together with the half-occupation (transition state) is notoriously successful in the calculation of atomic ionization potentials. When it comes to extended systems, such as a semiconductor infinite system, it has been very difficult to find a way to half-ionize because the hole tends to be infinitely extended (a Bloch wave). The answer to this problem lies in the LDA formalism itself. One proves that the half-occupation is equivalent to introducing the hole self-energy (electrostatic and exchange-correlation) into the Schroedinger equation. The argument then becomes simple: the eigenvalue minus the self-energy has to be minimized because the atom has a minimal energy. Then one simply proves that the hole is localized, not infinitely extended, because it must have maximal self-energy. Then one also arrives at an equation similar to the SIC equation, but corrected for the removal of just 1/2 electron. Applied to the calculation of band gaps and effective masses, we use the self-energy calculated in atoms and attain a precision similar to that of GW, but with the great advantage that it requires no more computational effort than standard LDA.
description: Zip file containing .tex and 6 .ps figures
Chaplygin inflation on the brane
Creators: name: Herrera, Ramon
Publisher: name: arXiv
Year: 2008
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Astrophysics (astro-ph)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Brane inflationary universe model in the context of a Chaplygin gas equation of state is studied. General conditions for this model to be realizable are discussed. In the high-energy limit and by using a chaotic potential we describe in great details the characteristic of this model. The parameters of the model are restricted by using recent astronomical observations.
description: 13 pages, 2 figures, Accepted for publication in Physics Letters B
SUBSTANTIVE AND CONFLICT-OF-LAWS REGULATION OF THE ADOPTION OF RUSSIAN CHILDREN BY FOREIGN CITIZENS AND STATELESS PERSONS
Creators: name: Pushkaryova, T.
Publisher: name: Norwegian Journal of Development of the International Science
Year: 2021
Subjects: adoption
foreign citizens
stateless persons
the law of citizenship
the law of permanent resi-dence
the transfer of children for adoption

description: The article considers the substantive and conflict of laws norms that determine the approach of the Russian state to the settlement of issues of adoption of Russian children by citizens of foreign states and stateless persons.
Two-fluid models of superfluid neutron star cores
Creators: name: Chamel, N.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Both relativistic and non-relativistic two-fluid models of neutron star cores are constructed, using the constrained variational formalism developed by Brandon Carter and co-workers. We consider a mixture of superfluid neutrons and superconducting protons at zero temperature, taking into account mutual entrainment effects. Leptons, which affect the interior composition of the neutron star and contribute to the pressure, are also included. We provide the analytic expression of the Lagrangian density of the system, the so-called master function, from which the dynamical equations can be obtained. All the microscopic parameters of the models are calculated consistently using the non-relativistic nuclear energy density functional theory. For comparison, we have also considered relativistic mean field models. The correspondence between relativistic and non-relativistic hydrodynamical models is discussed in the framework of the recently developed 4D covariant formalism of Newtonian multi-fluid hydrodynamics. We have shown that entrainment effects can be interpreted in terms of dynamical effective masses that are larger in the relativistic case than in the Newtonian case. With the nuclear models considered in this work, we have found that the neutron relativistic effective mass is even greater than the bare neutron mass in the liquid core of neutron stars.
description: 24 pages, 15 figures, accepted for publication in MNRAS
TAXONOMIC STRUCTURE OF BLUE-GREEN AND GREEN ALGAE DISTRIBUTED IN WATER BODIES AND RIVERS OF THE NAKHCHIVAN AUTONOMOUS REPUBLIC OF AZERBAIJAN
Creators: name: Kahramanov, S.
Publisher: name: Norwegian Journal of Development of the International Science
Year: 2021
Subjects: taxa
algoflora
plankton
cosmopolitan
indifferent

description: The conducted research results of the algal flora of water bodies and rivers of the Nakhchivan Autonomous Republic of Azerbaijan is characterized by a high species diversity of algae, it is represented by 135 species, varieties and forms from 2 divisions. The algal flora is based on 71 species of blue-green and 64-green algae. Among the blue-green algae, the most representative families are Oscillatoriaceae Kirchn, Microcystidaceae Elen-kin, and Merismopediaceae Elenk. The three highest genus of algae in this flora were identified: Oscillatoria Vaucher Ex Gomont, Microcystis Kütz, Merismopedia Meyen. The three largest genus of green algae in this flora have also been identified: Cosmarium Corda. Ecological and geographical analysis of the flora of algae in water bodies and rivers of the Nakhchivan Autonomous Republic showed the predominance of planktonic, cosmopolitan, mesohalobic indifferent, oligohalogenic, and alkaliphilic.
title: Asymptotic Phenomena through the Lens of Topological Noetherianity
Creators: name: Tairi, Nafie
Publisher: name: Universität Bern
Year: 2024
Subjects: subject: 510 Mathematics

description: This thesis examines universality and topological Noetherianity in asymptotic algebra, focusing on the behavior of geometric and algebraic structures in large contexts to simplify infinite problems. The first section explores the universality of maximal isotropic Grassmannians in quadratic spaces, building on the work of Kasman et al. It demonstrates that these Grassmannians can be defined set-theoretically by pulling back equations from lower-dimensional Grassmannians through specific maps. The second section addresses topological Noetherianity in infinite-dimensional spaces, inspired by Draisma-Eggermont. It establishes topological Noetherianity for infinite half-spin representations linked to isotropic Grassmannians, introducing half-spin varieties and exploring their applications. The final section extends the study to symplectic spaces, focusing on Noetherianity and universality for Lagrangian Plücker varieties. It examines Lagrangian Grassmann cones and LGCP maps, proving universality for the Lagrangian Grassmannian GrL(4). Additionally, it shows that the dual of ker∞ is topologically Sp(V∞)-Noetherian, where Sp(V∞) denotes the infinite symplectic group.
THE ANALYSIS OF THE CURRENT STATE AND RISKS OF INTERNATIONALIZATION OF HIGHER EDUCATION IN UKRAINE
Creators: name: Prokofieva, M.
name: Sabitova, A.
Publisher: name: Norwegian Journal of Development of the International Science
Year: 2021
Subjects: foreign language
higher education
internationalization
academic mobility
internationalization of the curriculum
online education
remote education
"virtual" internationalization
internationalization at home

description: The article examines the current state and risks of internationalization of higher education in Ukraine; the role of a foreign language as one of the effective tools of internationalization is defined; factors of influence on virtual internationalization are distinguished; the need for virtual mobility in the context of online education is proved; own experience of teaching a second foreign language in the context of internationalization of higher education is described; the Internationalization Strategy of National Aviation University is analyzed.
Fauna: Vertebrates - Freshwater Fishes
Creators: name: Low, Bi Wei
name: Hui, Tan Heok
name: Kwik, Teik Beng Jeffrey
name: Zeng, Yiwen
name: Yeo, Darren C. J.
Publisher: name: Singapore Institute of Technology
Year: 2024
Subjects: classificationCode: 310304
subject: Freshwater ecology

description: This book chapter describes the current native freshwater fish species that can be found in Singapore's fresh waters. This includes 45 native fish species, of which 36 are currently extant and nine presumably nationally extinct. Owing to threats such as habitat degradation and invasive species, about half of the extant native freshwater fishes fall within a threatened category.
THE EXPERIENCE OF KAZAKHSTAN IN THE PROCESS OF CREATING VALUES FOUNDATION IN THE CULTURE OF INTEGRITY
Creators: name: Gryzunowa, G.
name: Berekpolova, G.
Publisher: name: Norwegian Journal of Development of the International Science
Year: 2021
Subjects: corruption
anti-corruption culture
human decency
moral consciousness
valuables
personal meaning

description: The article consider the formation of an anti-corruption culture in modern Kazakhstan. The emphasis is on the ways to develop the level of moral consciousness of civil servants. The importance of this topic appears because of this fact that person’s actions are determined by values, which are used in them behaviour directly. The im-portant requirement is to understand your own level of moral values and principles.
Subaru Hyper Suprime-Cam revisits the large-scale environmental dependence on galaxy morphology over 360 deg$^2$ at z=0.3-0.6
Creators: name: Shimakawa, Rhythm
name: Tanaka, Takumi S.
name: Toshikage, Seiji
name: Tanaka, Masayuki
Publisher: name: arXiv
Year: 2021
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: This study investigates the role of large-scale environments on the fraction of spiral galaxies at $z=$ 0.3-0.6 sliced to three redshift bins of $Δz=0.1$. Here, we sample 276220 massive galaxies in a limited stellar mass of $5\times10^{10}$ solar mass ($\sim M^\ast$) over 360 deg$^2$, as obtained from the Second Public Data Release of the Hyper Suprime-Cam Subaru Strategic Program (HSC-SSP). By combining projected two-dimensional density information (Shimakawa et al. 2021) and the CAMIRA cluster catalog (Oguri et al. 2018), we investigate the spiral fraction across large-scale overdensities and in the vicinity of red sequence clusters. We adopt transfer learning to significantly reduce the cost of labeling spiral galaxies and then perform stacking analysis across the entire field to overcome the limitations of sample size. Here we employ a morphological classification catalog by the Galaxy Zoo Hubble (Willet et al. 2017) to train the deep learning model. Based on 74103 sources classified as spirals, we find moderate morphology-density relations on ten comoving Mpc scale, thanks to the wide-field coverage of HSC-SSP. Clear deficits of spiral galaxies have also been confirmed, in and around 1136 red sequence clusters. Furthermore, we verify whether there is a large-scale environmental dependence on rest-frame $u-r$ colors of spiral galaxies; however, such a tendency was not observed in our sample.
description: 14 pages, 11 figures. Accepted for publication in Publications of the Astronomical Society of Japan (PASJ)
THE INFLUENCE OF THE KARAKALPAK LANGUAGE ON THE SPEECH OF KAZAKHS OF KARAKALPAKSTAN
Creators: name: Kuttimuratova, I.
Publisher: name: Norwegian Journal of Development of the International Science
Year: 2021
Subjects: ancient history
native language
oral literature
word appeal
rich culture

description: The article provides a detailed study of the Kazakhs in Karakalpakstan, as well as features in their language. The object of research is the peculiarities of the language of the Kazakhs of the Republic of Karakalpakstan. The article reveals the invaluable heritage of Kazakh literature and rich oral tradition. It is also important that the Kazakh language is passed on to the next generation in its purest form.
Coalescent processes in subdivided populations subject to recurrent mass extinctions
Creators: name: Taylor, Jesse E.
name: Veber, Amandine
Publisher: name: arXiv
Year: 2008
Subjects: subject: Probability (math.PR)
subject: FOS: Mathematics
subject: 60J25; 60J75

description: We investigate the infinitely many demes limit of the genealogy of a sample of individuals from a subdivided population subject to sporadic mass extinction events. By exploiting a separation of timescales property of Wright's island model, we show that as the number of demes tends to infinity the limiting form of the genealogy can be described in terms of the alternation of instantaneous 'scattering' phases dominated by local demographic processes, and extended 'collecting' phases dominated by global processes. When extinction and recolonization events are local, this genealogy is given by Kingman's coalescent and the scattering phase influences only the overall rate of the process. In contrast, if the vacant demes left by a mass extinction event can be recolonized by individuals emerging from a small number of demes, then the limiting genealogy is a colaescent with simultaneous multiple mergers. In this case, the details of the within-deme population dynamics influence not only the overall rate of the coalescent process, but also the statistics of the complex mergers that can occur within sample genealogies. This study gives some insight into the genealogical consequences of mass extinction in structured populations.
description: 38 pages
THE ISSUE OF DULAT AND ABAY IN THE SCIENCE OF KAZAKH LITERATURE
Creators: name: Pertaeva, E.
Publisher: name: Norwegian Journal of Development of the International Science
Year: 2021
Subjects: Kazakh literature
folk poetry
Dulat
Abay
written literature

description: The article is devoted to the problems of the famous Kazakh poets Dulat and Abay in the science of Kazakh literature. The article comparatively analyzes the songs of the two poets. Dulat and Abay contributed to the for-mation of Kazakh written literature. They have enriched the content of our poetry and helped to develop fiction.
From Equilibrium to Transport Properties of Strongly Correlated Fermi Liquids
Creators: name: Schaefer, Thomas
Publisher: name: arXiv
Year: 2008
Subjects: subject: Nuclear Theory (nucl-th)
subject: Other Condensed Matter (cond-mat.other)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We summarize recent results regarding the equilibrium and non-equilibrium behavior of cold dilute atomic gases in the limit in which the two body scattering length a goes to infinity. In this limit the system is described by a Galilean invariant (non-relativistic) conformal field theory. We discuss the low energy effective lagrangian appropriate to the limit a->infinity, and compute low energy coefficients using an epsilon-expansion. We also show how to combine the effective lagrangian with kinetic theory in order to compute the shear viscosity, and compare the kinetic theory predictions to experimental results extracted from the damping of collective modes in trapped Fermi gases.
description: 12 pages; to appear in the proceedings of the 8th Conference on Continuous Advances in QCD, Minneapolis, Minnesota, May 15-18, 2008
The role of internal chain dynamics on the rupture kinetics of adhesive contacts
Creators: name: Barsegov, V.
name: Morrison, G.
name: Thirumalai, D.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: We study the forced rupture of adhesive contacts between monomers that are not covalently linked in a Rouse chain. When the applied force ($f$) to the chain end is less than the critical force for rupture ($f_c$), the {\it reversible} rupture process is coupled to the internal Rouse modes. If $f/f_{c}$$>$1 the rupture is {\it irreversible}. In both limits, the non-exponential distribution of contact lifetimes, which depends sensitively on the location of the contact, follows the double-exponential (Gumbel) distribution. When two contacts are well separated along the chain, the rate limiting step in the {\it sequential} rupture kinetics is the disruption of the contact that is in the chain interior. If the two contacts are close to each other, they cooperate to sustain the stress, which results in an ``all-or-none'' transition.
description: 9 pages, 3 figures, accepted to Phys. Rev. Lett
Bagger-Lambert Theory for General Lie Algebras
Creators: name: Gomis, Jaume
name: Milanesi, Giuseppe
name: Russo, Jorge G.
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We construct the totally antisymmetric structure constants f^{ABCD} of a 3-algebra with a Lorentzian bi-invariant metric starting from an arbitrary semi-simple Lie algebra. The structure constants f^{ABCD} can be used to write down a maximally superconformal 3d theory that incorporates the expected degrees of freedom of multiple M2 branes, including the "center-of-mass" mode described by free scalar and fermion fields. The gauge field sector reduces to a three dimensional BF term, which underlies the gauge symmetry of the theory. We comment on the issue of unitarity of the quantum theory, which is problematic, despite the fact that the specific form of the interactions prevent the ghost fields from running in the internal lines of any Feynman diagram. Giving an expectation value to one of the scalar fields leads to the maximally supersymmetric 3d Yang-Mills Lagrangian with the addition of two U(1) multiplets, one of them ghost-like, which is decoupled at large g_YM.
description: 12 pages, Latex; small corrections and references added; published version (small typos fixed)
Theoretical Description of Pseudocubic Manganites
Creators: name: Lin, Chungwei
name: Millis, Andrew. J.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: A comprehensive theoretical model for the bulk manganite system La$_{1-x}$(Ca,Sr)$_x$MnO$_3$ is presented. The model includes local and cooperative Jahn-Teller distortions and the on-site Coulomb and exchange interaction. The model is is solved in the single-site dynamical mean field approximation using a solver based on the semiclassical approximation. The model semi-quantitatively reproduces the observed phase diagram for the doping $0 \leq x<0.5$ and implies that the manganites are in the strong coupling region but close to Mott insulator/metal phase boundary. The results establish a formalism for use in a broader range of calculations, for example on heterostructures.
description: 14 figures, 34 pages, using the bandwidth obtained from LDA with the observed structure, and resulting in a better fit to data.
The cosmological background and the "external field" in Modified Gravity (MOG)
Creators: name: Moffat, J. W.
name: Toth, V. T.
Publisher: name: arXiv
Year: 2021
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We investigate the contributions of the Friedmann-Lemaître-Robertson-Walker metric of the standard cosmology as an asymptotic boundary condition on the first-order approximation of the gravitational field in Moffat's theory of modified gravity (MOG). We also consider contributions due to the fact that the MOG theory does not satisfy the shell theorem or Birkhoff's theorem, resulting in what is known as the "external field effect" (EFE). We show that while both these effects add small contributions to the radial acceleration law, the result is orders of magnitude smaller than the radial acceleration in spiral galaxies.
description: 4 pages, 1 figure
Towards Open String Mirror Symmetry for One-Parameter Calabi-Yau Hypersurfaces
Creators: name: Knapp, Johanna
name: Scheidegger, Emanuel
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Algebraic Geometry (math.AG)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: This work is concerned with branes and differential equations for one-parameter Calabi-Yau hypersurfaces in weighted projective spaces. For a certain class of B-branes we derive the inhomogeneous Picard--Fuchs equations satisfied by the brane superpotential. In this way we arrive at a prediction for the real BPS invariants for holomorphic maps of worldsheets with low Euler characteristics, ending on the mirror A-branes.
description: 68+1 pages, 4 figures, v2: references added, typos corrected
Integrated optical devices in lithium niobate
Creators: name: Ahmed, Mohammad Jamil
Publisher: name: University of British Columbia
Year: 2010

description: Integrated optical devices use light to perform circuit functions. One class of devices using Ti indiffused waveguides in LiNb0₃ are investigated in this thesis. The applications studied include series and multibranch interferometers, a comparatorless A/D converter, and a high voltage sensor. An Impedance transformation equation for an exponential line is derived and used to obtain relations for the propagation constant of an optical waveguide with linearly graded index. The results are used to study the effect of a Ta₂O₅ film on the propagation constant of a Ti diffused waveguide. Heating in O₂ of the TA₂0₅ film, loading one arm of the Mach-Zehnder modulator, is shown to tune the modulator. The fabrication of devices in Y-cut LiNb0₃ by Ti diffusion is described. Microscope objectives are used to couple 0.6328 μm light into 4 μm wide waveguides through polished edges. An application of the Mach-Zehnder modulator and a two mode BOA (Bifurcation optique active) modulator to high voltage measurement is discussed. The output Intensity of the series interferometric filter is calculated. Measured results on a two section filter are presented. Also, the output intensity of a multibranch interferometric filter is determined. Experimental results on a three branch filter are included.
Nonradiative Recombination of Excitons in Carbon Nanotubes Mediated by Free Charge Carriers
Creators: name: Kinder, J. M.
name: Mele, E. J.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Free electrons or holes can mediate the nonradiative recombination of excitons in carbon nanotubes. Kinematic constraints arising from the quasi one-dimensional nature of excitons and charge carriers lead to a thermal activation barrier for the process. However, a model calculation suggests that the rate for recombination mediated by a free electron is the same order of magnitude as that of two-exciton recombination. Small amounts of doping may contribute to the short exciton lifetimes and low quantum yields observed in carbon nanotubes.
description: 18 pages, 4 figures. Submitted to Physical Review B
HEAP -- The autonomous walking excavator
Creators: name: Jud, Dominic
name: Kerscher, Simon
name: Wermelinger, Martin
name: Jelavic, Edo
name: Egli, Pascal
name: Leemann, Philipp
name: Hottiger, Gabriel
name: Hutter, Marco
Publisher: name: arXiv
Year: 2021
Subjects: subject: Robotics (cs.RO)
subject: FOS: Computer and information sciences

description: The demand and the potential for automation in the construction sector is unmatched, particularly for increasing environmental sustainability, improving worker safety and reducing labor shortages. We have developed an autonomous walking excavator - based one of the most versatile machines found on construction sites - as one way to begin fulfilling this potential. This article describes the process of converting an off-the-shelf construction machine into an autonomous robotic system. First we outline the necessary sensing equipment for full autonomy and the novel actuation of the legs, and compare three different complementary actuation principles for the excavator's arm. Second, we solve the state estimation problem for a general wheeled-legged robot. Beside kinematic measurements, it includes GNSS-RTK, to absolutely reference the machine on a construction site. Third, we developed individual controllers for driving, chassis balancing and arm motions allowing for fully autonomous operation. Lastly, we highlight the machine's potential in four different real-world applications, e.g. autonomous trench digging, autonomous assembly of dry stone walls, autonomous forestry work and semi-autonomous teleoperation. On top, we also share some development insights and possible future research directions.
Problems of Position Reconstruction in Silicon Microstrip Detects
Creators: name: Landi, Gregorio
Publisher: name: arXiv
Year: 2021
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: High Energy Physics - Experiment (hep-ex)
subject: Data Analysis, Statistics and Probability (physics.data-an)
subject: FOS: Physical sciences

description: The algorithms for position reconstruction in silicon micro-strip detectors are studied, and the signals of a minimum ionizing particle are simulated. The center-of-gravity distributions of the data events allow the fine tuning of the signal forms and of the strip response functions. In the sensors with floating strips the response function turns out to roughly approximate the response of a triangular function for the size of the signal involved. The simulations are extended to non orthogonal incidence. In these directions, and in general for all the asymmetric signal distributions, the standard application of the $η$ algorithm introduces a systematic error. A signal reconstruction theorem gives the way to implement the corrections of this error.
description: 26 pages, 20 figures,completes previous NIM-A papers
Self-calibrating interloper bias in spectroscopic galaxy clustering surveys
Creators: name: Gong, Yan
name: Miao, Haitao
name: Zhang, Pengjie
name: Chen, Xuelei
Publisher: name: arXiv
Year: 2021
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Contamination of interloper galaxies due to misidentified emission lines can be a big issue in the spectroscopic galaxy clustering surveys, especially in future high-precision observations. We propose a statistical method based on the cross-correlations of the observational data itself between two redshift bins to efficiently reduce this effect, and it also can derive the interloper fraction f_i in a redshift bin with a high level of accuracy. The ratio of cross and auto angular correlation functions or power spectra between redshift bins are suggested to estimate f_i, and the key equations are derived for theoretical discussion. In order to explore and prove the feasibility and effectiveness of this method, we also run simulations, generate mock data, and perform cosmological constraints considering systematics based on the observation of the China Space Station Telescope (CSST). We find that this method can effectively reduce the interloper effect, and accurately constrain the cosmological parameters for f_i<1%~10%, which is suitable for most future surveys. This method also can be applied to other kinds of galaxy clustering surveys like line intensity mapping.
description: 6 pages, 3 figures. Accepted for publication in ApJ
ลำดับนิวคลีโอไทด์บางส่วนของยีน CHD-W และ CHD-Z เพื่อการระบุเพศของนกปรอดหัวโขน
(Partial nucleotide sequences of CHD-W and CHD-Z genes for sex identification of Red-whiskered Bulbul (Pycnonotus jocosus))
Creators: name: Somchart Tana
name: Dutrudi Panprommin
Publisher: name: Genetics Society of Thailand
Year: 2014
Subjects: CHD-W and CHD-Z genes, sex Identification, Red-whiskered Bulbul (Pycnonotus jocosus), polymerase chain reaction

description: 2, 7, Thai Journal of Genetics
The R package sentometrics to compute, aggregate and predict with textual sentiment
Creators: name: Ardia, David
name: Bluteau, Keven
name: Borms, Samuel
name: Boudt, Kris
Publisher: name: arXiv
Year: 2021
Subjects: subject: Machine Learning (stat.ML)
subject: Computation and Language (cs.CL)
subject: Machine Learning (cs.LG)
subject: Applications (stat.AP)
subject: FOS: Computer and information sciences

description: We provide a hands-on introduction to optimized textual sentiment indexation using the R package sentometrics. Textual sentiment analysis is increasingly used to unlock the potential information value of textual data. The sentometrics package implements an intuitive framework to efficiently compute sentiment scores of numerous texts, to aggregate the scores into multiple time series, and to use these time series to predict other variables. The workflow of the package is illustrated with a built-in corpus of news articles from two major U.S. journals to forecast the CBOE Volatility Index.
Optimization of the design of superconducting inhomogeneous nanowires
Creators: name: Grigorenko, Ilya
name: Zhu, Jian-Xin
name: Balatsky, Alexander
Publisher: name: arXiv
Year: 2008
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We study optimization of superconducting properties of inhomogeneous nanowires. The main goal of this research is to find an optimized geometry that allows one to maximize the desired property of superconductors, such as the maximum value of local superconducting gap or total condensation energy. We consider axially symmetric design of multi-layered nanowires with possibility to adjust and change the layers thickness. We use numerical solution of the Bogoliubov-de Gennes equations to obtain the local superconducting gap for different arrangements of the inhomogeneous structures. The value of the optimized properties can be up to 300% greater compared to a non-optimized geometry. The optimized configuration of multilayers strongly depends on the desired property one wants to optimize and on the number of layers in the nanowire.
description: Published in J. Phys.: Condens. Matter 20, 195204 (2008)
Fuzzy Dark Matter Candidates from String Theory
Creators: name: Cicoli, Michele
name: Guidetti, Veronica
name: Righi, Nicole
name: Westphal, Alexander
Publisher: name: Deutsches Elektronen-Synchrotron, DESY, Hamburg
Year: 2021
Subjects: dark matter, fuzzy
moduli, stability
axion, decay constant
compactification, flux
instanton, action
string model
string
alignment
Fuzzy dark matter
ultralight axions
4D string models

description: String theory has been claimed to give rise to natural fuzzy dark matter candidates in the form of ultralight axions. In this paper we revisit this claim by a detailed study of how moduli stabilisation affects the masses and decay constants of different axion fields which arise in type IIB flux compactifications. We find that obtaining a considerable contribution to the observed dark matter abundance without tuning the axion initial misalignment angle is not a generic feature of 4D string models since it requires a mild violation of the $S f\lesssim M_P$ bound, where $S$ is the instanton action and $f$ the axion decay constant. Our analysis singles out $C_4$-axions, $C_2$-axions and thraxions as the best candidates to realise fuzzy dark matter in string theory. For all these ultralight axions we provide predictions which can be confronted with present and forthcoming observations.
Consensual Collaborative Training And Knowledge Distillation Based Facial Expression Recognition Under Noisy Annotations
Creators: name: Gera, Darshan
name: Balasubramanian, S.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: Presence of noise in the labels of large scale facial expression datasets has been a key challenge towards Facial Expression Recognition (FER) in the wild. During early learning stage, deep networks fit on clean data. Then, eventually, they start overfitting on noisy labels due to their memorization ability, which limits FER performance. This work proposes an effective training strategy in the presence of noisy labels, called as Consensual Collaborative Training (CCT) framework. CCT co-trains three networks jointly using a convex combination of supervision loss and consistency loss, without making any assumption about the noise distribution. A dynamic transition mechanism is used to move from supervision loss in early learning to consistency loss for consensus of predictions among networks in the later stage. Inference is done using a single network based on a simple knowledge distillation scheme. Effectiveness of the proposed framework is demonstrated on synthetic as well as real noisy FER datasets. In addition, a large test subset of around 5K images is annotated from the FEC dataset using crowd wisdom of 16 different annotators and reliable labels are inferred. CCT is also validated on it. State-of-the-art performance is reported on the benchmark FER datasets RAFDB (90.84%) FERPlus (89.99%) and AffectNet (66%). Our codes are available at https://github.com/1980x/CCT.
description: 11 pages, 6 figures, Published with International Journal of Engineering Trends and Technology (IJETT), Codes: https://github.com/1980x/CCT
Breakdown of the Schmid law in bcc molybdenum related to the effect of shear stress perpendicular to the slip direction
Creators: name: Gröger, R.
name: Vitek, V.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The breakdown of the Schmid law in bcc metals has been known for a long time. The asymmetry of shearing in the slip direction <111> in the positive and negative sense, respectively, commonly identified with the twinning-antitwinning asymmetry, is undoubtedly one of the reasons. However, effect of stress components other than the shear stress in the slip direction may be important. In this paper we investigate by atomistic modeling the effect of shear stresses perpendicular to the Burgers vector on the glide of a/2<111> screw dislocations. We show that these shear stresses can significantly elevate or reduce the critical resolved shear stress (CRSS) in the direction of the Burgers vector needed for the dislocation motion, i.e. the Peierls stress. This occurs owing to the changes of the core induced by these stresses. This effect may be the reason why slip systems with smaller Schmid factors may be preferred over that with the largest Schmid factor.
description: 4 pages, published in Mat. Sci. Forum 482, 2005
Laminar-turbulent boundary in plane Couette flow
Creators: name: Schneider, Tobias M
name: Gibson, John F
name: Lagha, Maher
name: De Lillo, Filippo
name: Eckhardt, Bruno
Publisher: name: arXiv
Year: 2008
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: We apply the iterated edge state tracking algorithm to study the boundary between laminar and turbulent dynamics in plane Couette flow at Re=400. Perturbations that are not strong enough to become fully turbulent nor weak enough to relaminarize tend towards a hyperbolic coherent structure in state space, termed the edge state, which seems to be unique up to obvious continuous shift symmetries. The results reported here show that in cases where a fixed point has only one unstable direction, as for the lower branch solution in in plane Couette flow, the iterated edge tracking algorithm converges to this state. They also show that choice of initial state is not critical, and that essentially arbitrary initial conditions can be used to find the edge state.
description: 4 pages, 4 figures
Category theorems for stable operators on Hilbert spaces
Creators: name: Eisner, Tanja
name: Sereny, Andras
Publisher: name: arXiv
Year: 2008
Subjects: subject: Functional Analysis (math.FA)
subject: Dynamical Systems (math.DS)
subject: FOS: Mathematics
subject: 47A35; 37A25

description: We discuss the two closely related, but different concepts of weak and almost weak stability for the powers of a contraction on a separable Hilbert space. Extending Halmos' and Rohlin's theorems in ergodic theory as a model, we show that the set of all weakly stable contractions is of first category while the set of all almost weakly stable contractions is of second category and is residual. Analogous statements for unitary and isometric operators are also proved.
description: 9 pages. To appear in Acta Scientiarum Mathematicarum (Szeged)
Thraxions: Towards Full String Models
Creators: name: Carta, Federico
name: Mininno, Alessandro
name: Righi, Nicole
name: Westphal, Alexander
Publisher: name: Deutsches Elektronen-Synchrotron, DESY, Hamburg
Year: 2021
Subjects: orientifold: Calabi-Yau
moduli: Kaehler
conifold
axion
moduli: stability
throat
string model: Type IIB
Klebanov-Strassler model
torsion

description: We elucidate various aspects of the physics of thraxions, ultra-light axions arising at Klebanov-Strassler multi-throats in the compactification space of IIB superstring theory. We study the combined stabilization of Kähler moduli and thraxions, showing that under reasonable assumptions, one can solve the combined problem both in a KKLT and a LVS setup. We find that for non-minimal multi-throats, the thraxion mass squared is three-times suppressed by the throat warp factor. However, the minimal case of a double-throat can preserve the six-times suppression as originally found. We also discuss the backreaction of a non-vanishing thraxion vacuum expectation value on the geometry, showing that it induces a breaking of the imaginary self-duality condition for $3$-form fluxes. This in turn breaks the Calabi-Yau structure to a complex manifold one. Finally, we extensively search for global models which can accommodate the presence of multiple thraxions within the database of Complete Intersection Calabi-Yau orientifolds. We find that each multi-throat system holds a single thraxion. We further point out difficulties in constructing a full-fledged global model, due to the generic presence of frozen-conifold singularities in a Calabi-Yau orientifold. For this reason, we propose a new database (https://www.desy.de/~westphal/orientifold_webpage/cicy_thraxions.html) of CICY orientifolds that do not have frozen conifolds but that admit thraxions.
Theory of Manganite Superlattice
Creators: name: Lin, Chungwei
name: Millis, Andrew. J.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: A theoretical model is proposed for the (0,0,1) superlattice manganite system (LaMnO$_3$)$_n$(SrMnO$_3$)$_m$. The model includes the electron-electron, electron-phonon, and cooperative Jahn-Teller interactions. It is solved using a version of single-site the dynamical mean field approximation generalized to incorporate the cooperative Jahn-Teller effect. The phase diagram and conductivities are calculated. The behavior of the superlattice is found to a good approximation to be an average over the density-dependent properties of individual layers, with the density of each layer fixed by electrostatics.
description: 9 figures, 22 pages
Transformation of the multipolar components of gravitational radiation under rotations and boosts
Creators: name: Gualtieri, L.
name: Berti, E.
name: Cardoso, V.
name: Sperhake, U.
Publisher: name: arXiv
Year: 2008
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We study the transformation of multipolar decompositions of gravitational radiation under rotations and boosts. Rotations to the remnant black hole's frame simplify the waveforms from the merger of generic spinning black hole binaries. Boosts may be important to get an accurate gravitational-wave phasing, especially for configurations leading to large recoil velocities of the remnant. As a test of our formalism we revisit the classic problem of point particles falling into a Schwarzschild black hole. Then we highlight by specific examples the importance of choosing the right frame in numerical simulations of unequal-mass, spinning binary black-hole mergers.
description: 25 pages, 5 figures, revtex4; transformations under rotations generalized to all values of l; to appear on Phys. Rev. D
Patient Perception and Knowledge of Hemorrhoids and Surgical Treatment: A Hospital-Based Cross-Sectional Study
Creators: name: Rakesh Ranjan, Swain
Publisher: name: Annals of Medicine and Medical Sciences
Year: 2025
Subjects: Hemorrhoids
Public Perception
Health Promotion
Surgical Procedures
Operative

description: Background: Hemorrhoids, enlarged blood vessels in the anal region, often develop due to straining during bowel movements. They can be classified as internal or external and typically present as painless rectal bleeding, swelling, or a noticeable lump. While hemorrhoids are common worldwide, there’s a lack of research on public understanding of this condition in Odisha. Aims and Objectives: This cross-sectional study aimed to evaluate patient Perception and knowledge toward hemorrhoids, anticipating prevalent misconceptions. Methods: Participants completed self-administered questionnaires to collect demographic data and assess hemorrhoid perceptions. Data analysis was performed using IBM SPSS Statistics 29. Results: This study found that 94.2% of participants reported awareness of hemorrhoids. The most commonly cited causes were straining during defecation (23%). Surgery was perceived as the primary treatment by 39.5% of participants, and 87.9% acknowledged a negative impact of hemorrhoids on their quality of life. Multivariate analysis revealed significant predictors of greater hemorrhoid knowledge, including age (OR=1.942 for the 28-43 age group), geographic location (OR=1.079 for Urban residency), educational attainment (OR=2.582 for degree holders), income level (OR=2.146 for 5000-10000 SAR income), and prior hemorrhoid knowledge (OR=7.102). Conclusions: This study highlights the need for comprehensive patient education and personalized care for individuals with hemorrhoids in Odisha. Digital platforms can effectively promote health awareness. The findings can inform targeted interventions and public awareness campaigns to improve quality of life. Future research and collaboration are essential to advance these initiatives.