cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
MATBG as Topological Heavy Fermion: I. Exact Mapping and Correlated Insulators
Creators: name: Song, Zhi-Da
name: Bernevig, B. Andrei
Publisher: name: arXiv
Year: 2021
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Magic-angle ($θ=1.05^\circ$) twisted bilayer graphene (MATBG) has shown two seemingly contradictory characters: the localization and quantum-dot-like behavior in STM experiments, and delocalization in transport experiments. We construct a model, which naturally captures the two aspects, from the Bistritzer-MacDonald (BM) model in a first principle spirit. A set of local flat-band orbitals ($f$) centered at the AA-stacking regions are responsible to the localization. A set of extended topological conduction bands ($c$), which are at small energetic separation from the local orbitals, are responsible to the delocalization and transport. The topological flat bands of the BM model appear as a result of the hybridization of $f$- and $c$-electrons. This model then provides a new perspective for the strong correlation physics, which is now described as strongly correlated $f$-electrons coupled to nearly free topological semimetallic $c$-electrons - we hence name our model as the topological heavy fermion model. Using this model, we obtain the U(4) and U(4)$\times$U(4) symmetries as well as the correlated insulator phases and their energies. Simple rules for the ground states and their Chern numbers are derived. Moreover, features such as the large dispersion of the charge $\pm1$ excitations and the minima of the charge gap at the $Γ_M$ point can now, for the first time, be understood both qualitatively and quantitatively in a simple physical picture. Our mapping opens the prospect of using heavy-fermion physics machinery to the superconducting physics of MATBG.
description: New references are added. Discussions on band geometry, relevant experiments, and more terms in the exchange interactions are added to the supplementary materials
Stable functors of derived equivalences and Gorenstein projective modules
Creators: name: Hu, Wei
name: Pan, Shengyong
Publisher: name: arXiv
Year: 2015
Subjects: subject: Representation Theory (math.RT)
subject: Commutative Algebra (math.AC)
subject: Rings and Algebras (math.RA)
subject: FOS: Mathematics

description: From certain triangle functors, called non-negative functors, between the bounded derived categories of abelian categories with enough projective objects, we introduce their stable functors which are certain additive functors between the stable categories of the abelian categories. The construction generalizes a previous work by Hu and Xi. We show that the stable functors of non-negative functors have nice exactness property and are compatible with composition of functors. This allows us to compare conveniently the homological properties of objects linked by the stable functors. Particularly, we prove that the stable functor of a derived equivalence between two arbitrary rings provides an explicit triangle equivalence between the stable categories of Gorenstein projective modules. This generalizes a result of Y. Kato. Our results can also be applied to provide shorter proofs of some known results on homological conjectures.
description: comments are welcome,submitted
Towards large-scale restricted active space calculations inspired by the Schmidt decomposition
Creators: name: Barcza, Gergely
name: Werner, Miklós Antal
name: Zaránd, Gergely
name: Pershin, Anton
name: Benedek, Zsolt
name: Legeza, Örs
name: Szilvási, Tibor
Publisher: name: arXiv
Year: 2021
Subjects: subject: Chemical Physics (physics.chem-ph)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We present an alternative, memory-efficient, Schmidt decomposition-based description of the inherently bipartite restricted active space (RAS) scheme, which can be implemented effortlessly within the density matrix renormalization group (DMRG) method via the dynamically extended active space procedure. Benchmark calculations are compared against state-of-the-art results of C$_2$ and Cr$_2$, which are notorious for their multi-reference character. Our results for ground and excited states together with spectroscopic constants demonstrate that the proposed novel approach, dubbed as DMRG-RAS, which is variational and free of uncontrolled method errors, has the potential to outperfom conventional methods for strongly correlated molecules.
description: 11 pages, 4 figures
Spin-orbit coupling matrix elements from the explicitly connected expressions of the response functions within the coupled-cluster theory
Creators: name: Tucholska, Aleksandra Maria
name: Lesiuk, Michał
name: Moszynski, Robert
Publisher: name: arXiv
Year: 2021
Subjects: subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: In this work we present a coupled cluster based approach to the computation of the spin orbit coupling matrix elements. The working expressions are derived from the quadratic response function with the coupled cluster parametrization, using the auxiliary excitation operator S. Systematic approximations are proposed with the CCSD and CC3 levels of theory. The new method is tested by computing lifetimes of several electronic states of Ca, Sr and Ba atoms, with Gaussian and Slater basis sets. The results are compared with available theoretical and experimental data.
description: 18 pages, 9 tabels
title: Chirurgische Therapie bei Infekt des Steuerkabels nach Kunstherzimplantation
Creators: name: Hußmann, Jürgen
name: Stepanenko, Alexander
name: Müller, Marcus
Publisher: name: German Medical Science GMS Publishing House
Year: 2016
Subjects: subject: 610 Medical sciences; Medicine

description: Fragestellung: Die Austrittsstelle des Steuerkabels aus dem Körper stellt die wichtigste Eintrittspforte für Keime und damit für lebensbedrohliche Infekte dar. Mit der vorliegenden Arbeit soll evaluiert werden, ob die chirurgische Therapie des Kabelinfektes die Laufzeit eines Herzunterstützungssystems[zum vollständigen Text gelangen Sie über die oben angegebene URL]
description: 53. Jahrestagung der Deutschen Gesellschaft für Plastische und Wiederherstellungschirurgie (DGPW)
The nicotinic cholinergic receptor system and cognitive function : neuroimaging studies in healthy ageing and Alzheimer's disease
Creators: name: Ellis., Julia Rae
Publisher: name: Monash University
Year: 2021

description: This thesis was scanned from the print manuscript for digital preservation and is copyright the author.
 Researchers can access this thesis by asking their local university, institution or public library to
 make a request on their behalf. Monash staff and postgraduate students can use the link in the References field.
On the irrationality of generalized $q$-logarithm
Creators: name: Zudilin, Wadim
Publisher: name: arXiv
Year: 2016
Subjects: subject: Number Theory (math.NT)
subject: Classical Analysis and ODEs (math.CA)
subject: Combinatorics (math.CO)
subject: FOS: Mathematics
subject: Primary 11J72, Secondary 11C20, 33D15, 41A20

description: For integer $p$, $|p|>1$, and generic rational $x$ and $z$, we establish the irrationality of the series $$\ell_p(x,z)=x\sum_{n=1}^\infty\frac{z^n}{p^n-x}.$$ It is a symmetric ($\ell_p(x,z)=\ell_p(z,x)$) generalization of the $q$-logarithmic function ($x=1$ and $p=1/q$ where $|q|<1$), which in turn generalizes the $q$-harmonic series ($x=z=1$). Our proof makes use of the Hankel determinants built on the Padé approximations to $\ell_p(x,z)$.
description: 12 pages
Topological lattices realized in superconducting circuit optomechanics
Creators: name: Youssefi, Amir
name: Kono, Shingo
name: Bancora, Andrea
name: Chegnizadeh, Mahdi
name: Pan, Jiahe
name: Vovk, Tatiana
name: Kippenberg, Tobias J.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Atomic Physics (physics.atom-ph)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: Cavity optomechanics enables controlling mechanical motion via radiation pressure interaction, and has contributed to the quantum control of engineered mechanical systems ranging from kg scale LIGO mirrors to nano-mechanical systems, enabling ground-state preparation, entanglement, squeezing of mechanical objects, position measurements at the standard quantum limit and quantum transduction. Yet, nearly all prior schemes have employed single- or few-mode optomechanical systems. In contrast, novel dynamics and applications are expected when utilizing optomechanical lattices, which enable to synthesize non-trivial band structures, and have been actively studied in the field of circuit QED. Superconducting microwave optomechanical circuits are a promising platform to implement such lattices, but have been compounded by strict scaling limitations. Here, we overcome this challenge and demonstrate topological microwave modes in 1D circuit optomechanical chains realizing the Su-Schrieffer-Heeger (SSH) model. Furthermore, we realize the strained graphene model in a 2D optomechanical honeycomb lattice. Exploiting the embedded optomechanical interaction, we show that it is possible to directly measure the mode functions of the hybridized modes without using any local probe. This enables us to reconstruct the full underlying lattice Hamiltonian and directly measure the existing residual disorder. Such optomechanical lattices, accompanied by the measurement techniques introduced, offers an avenue to explore collective, quantum many-body, and quench dynamics, topological properties and more broadly, emergent nonlinear dynamics in complex optomechanical systems with a large number of degrees of freedoms. (Keywords: Quantum Optomechanics, Superconducting Circuit Electromecahnics)
description: Updated version with Methods and SI
ZAMONAVIY ONLAYN OLIY TA'LIMDA MULTIMEDIA TEXNOLOGIYALARI
Creators: name: Sh.Sadullayeva1, T.Ibragimova 2 1 Belarus - O'zbekiston qo'shma tarmoqlararo amaliy texnik kvalifikatsiyalar instituti ilmiy ishlar va innovatsiyalar boʼyicha direktor oʼrinbosari. Elektron pochta : sh.sadullayeva@sbumiptk.uz  2Assistent o'qituvchi, Toshkent shahridagi Perfect universiteti
Publisher: name: Zenodo
Year: 2024

description: Maqolada zamonaviy onlayn oliy ta'limida multimedia texnologiyalarining dolzarbligi muhokama qilinadi. Ta'limga multimedia texnologiyalarini joriy etish zarurati ta'lim sifatiga qo'yiladigan zamonaviy talablar, o'quvchilar va o'qituvchilarning ehtiyojlari bilan bog'liq. Auditoriya soatlari hajmini qisqartirish tendentsiyasi kuzatilayotgan sharoitda multimedia texnologiyalaridan foydalanish, ehtimol, talabaga tobora ortib borayotgan axborot hajmini samarali yetkazishning yagona imkoniyatiga aylanmoqda.

Kalit so'zlar: multimedia, multimedia texnologiyalari, onlayn ta'lim, ta'limni kompyuterlashtirish, axborot-kommunikatsiya texnologiyalari, onlayn platforma
DA-LMR: A Robust Lane Marking Representation for Data Association
Creators: name: Muñoz-Bañón, Miguel Ángel
name: Pauls, Jan-Hendrik
name: Hu, Haohao
name: Stiller, Christoph
Publisher: name: arXiv
Year: 2021
Subjects: subject: Robotics (cs.RO)
subject: FOS: Computer and information sciences

description: While complete localization approaches are widely studied in the literature, their data association and data representation subprocesses usually go unnoticed. However, both are a key part of the final pose estimation. In this work, we present DA-LMR (Delta-Angle Lane Marking Representation), a robust data representation in the context of localization approaches. We propose a representation of lane markings that encodes how a curve changes in each point and includes this information in an additional dimension, thus providing a more detailed geometric structure description of the data. We also propose DC-SAC (Distance-Compatible Sample Consensus), a data association method. This is a heuristic version of RANSAC that dramatically reduces the hypothesis space by distance compatibility restrictions. We compare the presented methods with some state-of-the-art data representation and data association approaches in different noisy scenarios. The DA-LMR and DC-SAC produce the most promising combination among those compared, reaching 98.1% in precision and 99.7% in recall for noisy data with 0.5 m of standard deviation.
description: Accepted ICRA 2022 (camera ready version)
Determining the impact of global-local transformations of property on the formation of nanoeconomics
Creators: name: Britchenko, Igor
name: Artomova, Tetiana
name: Ostapenko, Tetiana
Publisher: name: figshare
Year: 2023
Subjects: classificationCode: 389999
subject: Other economics not elsewhere classified

description: The object of research is the relationship between the processes of formation of the information-network society and the global-local transformation of property relations at the turn of the XX–XXI centuries. The problem has been identified that the limitations of theoretical approaches to explain the content and interrelation of property relations and the social meaning of high-tech development have led to an increase in general socio-economic instability. To solve the problem, the definition of the institution of property as an economic good is provided. A three-level traditional model of public management has been highlighted. It is shown that the existing triple structure of the public sector of economy should acquire a different value content. The new model in the dynamic unity of markets of pure public benefits, public goods, private goods harmonizes public interests, strengthens relations of trust. This model forms the foundations for the formation of nanoeconomics in a broad sense as the forerunner of harmonious institutional architectonics of the economy. Nanoeconomics, as part of baby economics, human economics, and economics of nanotechnology, is based on the principles of rational behavior in making economic decisions within the limits of power. In the depths of baby economics, skills and competencies are formed in handling property. The human economy ensures the proper implementation of property functions. Within the experimental part of the study, a mathematical model of multifactor regression is constructed. The model confirmed the presence of dense dependence (0.9076) of the growth of GDP per capita on the state of distribution of property rights in the national economy. The area of practical use of the results is the post-war reconstruction of Ukraine's economy through the activation of its domestic business potential.
Modeling of Inelastic Collisions in a Multifluid Plasma: Ionization and Recombination
Creators: name: Le, H. P.
name: Cambier, J. -L.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Plasma Physics (physics.plasm-ph)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: A model for ionization and recombination collisions in a multifluid plasma is formulated using the framework introduced in previous work [{Phys. Plasmas} \textbf{22}, 093512 (2015)]. The exchange source terms for density, momentum and energy are detailed for the case of electron induced ionization and three body recombination collisions with isotropic scattering. The principle of detailed balance is enforced at the microscopic level. We describe how to incorporate the standard collisional-radiative model into the multifluid equations using the current formulation. Numerical solutions of the collisional-radiative rate equations for atomic hydrogen are presented to highlight the impact of the multifluid effect on the kinetics.
description: 5 figures
Group transformations and entangled-state quantum gates with directionally unbiased linear-optical multiports
Creators: name: Simon, David S.
name: Fitzpatrick, Casey A.
name: Sergienko, Alexander V.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The concept of directionally unbiased optical multiports is introduced, in which photons may reflect back out the input direction. A linear-optical implementation is described, and the simplest three-port version studied. Symmetry arguments demonstrate potential for unusual quantum information processing applications. The devices impose group structures on two-photon entangled Bell states and act as universal Bell-state processors to implement probabilistic quantum gates acting on state symmetries. These multiports allow optical scattering experiments to be carried out on arbitrary undirected graphs via linear optics and raise the possibility of linear-optical information processing using group structures formed by optical qudit states.
description: To appear in Phys. Rev. A
title: Plagio-Data 2.0: Eine Datenbank zur Erfassung kindlicher Schädeldeformitäten
Creators: name: Wilbrand, Jan-Falco
name: Kattenborn, Herbert
name: Howaldt, Hans-Peter
Publisher: name: German Medical Science GMS Publishing House
Year: 2016
Subjects: subject: 610 Medical sciences; Medicine

description: Einleitung: Die Erfassung kindlicher Schädeldeformitäten wird an unterschiedlichen Kliniken unterschiedlich gehandhabt. Dies führt dazu, dass jedes Zentrum lediglich die eigenen Daten auswerten kann und die Vergleichbarkeit der Parameter mit anderen Kliniken, die Kinder mit Schädeldeformitäten[zum vollständigen Text gelangen Sie über die oben angegebene URL]
description: 133. Kongress der Deutschen Gesellschaft für Chirurgie
RG flow of AC Conductivity in Soft Wall Model of QCD
Creators: name: Bhatnagar, Neha
name: Siwach, Sanjay
Publisher: name: arXiv
Year: 2015
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We study the Renormalization Group (RG) flow of AC conductivity in soft wall model of holographic QCD. We consider the charged black hole metric and the explicit form of AC conductivity is obtained at the cut-off surface. We plot the numerical solution of conductivity flow as a function of radial co-ordinate. The equation of gauge field is also considered and the numerical solution is obtained for AC conductivity as a function of frequency. The results for AC conductivity are also obtained for different values of chemical potential and Gauss-Bonnet couplings.
description: 6 pages, 6 figures
title: Der transanale Zugang zur Restrektumresektion im Rahmen des dreizeitigen Vorgehens bei der restorativen Proktokolektomie mit Ileumpouchanlage bei Colitis ulcerosa
Creators: name: Aigner, Felix
name: Biebl, Matthias
name: Ritschl, Paul
name: Zorron, Ricardo
name: Weiss, Sascha
name: Pratschke, Johann
Publisher: name: German Medical Science GMS Publishing House
Year: 2016
Subjects: subject: 610 Medical sciences; Medicine

description: Einleitung: Der zusätzliche transanale minimal invasive Zugang (TAMIS) zur Restrektumresektion im Rahmen der zwei-oder dreizeitigen Proktokolektomie mit Ileumpouchanlage stellt eine Alternative zur rein abdominellen Technik dar und verspricht bessere funktionelle Ergebnisse durch eine bessere Übersicht.[zum vollständigen Text gelangen Sie über die oben angegebene URL]
description: 133. Kongress der Deutschen Gesellschaft für Chirurgie
title: Ergebnisse der transanalen, endoskopischen Operationstechnik bei 217 Patienten
Creators: name: Hitzler, Mirjam
name: Heintz, Achim
Publisher: name: German Medical Science GMS Publishing House
Year: 2016
Subjects: subject: 610 Medical sciences; Medicine

description: Einleitung: Zur lokalen Abtragung von breitbasigen Rektumpolypen und frühen Rektumkarzinomen steht die transanale, endoskopische Mikrochirurgie (TEM) zur Verfügung. Die TEM wurde von Bueß entwickelt und wird seit 1983 klinisch angewandt. Indiziert ist die TEM heute bei Adenomen und „low[zum vollständigen Text gelangen Sie über die oben angegebene URL]
description: 133. Kongress der Deutschen Gesellschaft für Chirurgie
Discovery of an L4$β$ Candidate Member of Argus in the Planetary Mass Regime: WISE J231921.92+764544.4
Creators: name: Castro, Philip J.
name: Gizis, John E.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We present the discovery of a young L dwarf, WISE J231921.92+764544.4, identified by comparing the Wide-field Infrared Survey Explorer (WISE) All-Sky Catalog to the Two Micron All Sky Survey (2MASS). A medium-resolution optical spectrum provides a spectral type of L4$β$, with a photometric distance estimate of 26.1$\pm$4.4 pc. The red WISE $W1-W2$ color provides additional evidence of youth, while the 2MASS $J-K_{\rm s}$ color does not. WISE J231921.92+764544.4 is a candidate member of the young moving group Argus, with the space motion and position of WISE J231921.92+764544.4 giving a probability of 79% membership in Argus and a probability of 21% as a field object, based on BANYAN II. WISE J231921.92+764544.4 has a mass of 12.1$\pm$0.4 M$_{\rm Jup}$ based on membership in Argus, within the planetary mass regime.
description: 19 pages, 6 figures, accepted for publication in The Astrophysical Journal (ApJ)
An Analysis of the Influence of Transfer Learning When Measuring the Tortuosity of Blood Vessels
Creators: name: da Silva, Matheus V.
name: Ouellette, Julie
name: Lacoste, Baptiste
name: Comin, Cesar H.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Image and Video Processing (eess.IV)
subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Computer and information sciences

description: Characterizing blood vessels in digital images is important for the diagnosis of many types of diseases as well as for assisting current researches regarding vascular systems. The automated analysis of blood vessels typically requires the identification, or segmentation, of the blood vessels in an image or a set of images, which is usually a challenging task. Convolutional Neural Networks (CNNs) have been shown to provide excellent results regarding the segmentation of blood vessels. One important aspect of CNNs is that they can be trained on large amounts of data and then be made available, for instance, in image processing software for wide use. The pre-trained CNNs can then be easily applied in downstream blood vessel characterization tasks such as the calculation of the length, tortuosity, or caliber of the blood vessels. Yet, it is still unclear if pre-trained CNNs can provide robust, unbiased, results on downstream tasks when applied to datasets that they were not trained on. Here, we focus on measuring the tortuosity of blood vessels and investigate to which extent CNNs may provide biased tortuosity values even after fine-tuning the network to the new dataset under study. We show that the tortuosity values obtained by a CNN trained from scratch on a dataset may not agree with those obtained by a fine-tuned network that was pre-trained on a dataset having different tortuosity statistics. In addition, we show that the improvement in segmentation performance when fine-tuning the network does not necessarily lead to a respective improvement on the estimation of the tortuosity. To mitigate the aforementioned issues, we propose the application of specific data augmentation techniques even in situations where they do not improve segmentation performance.
description: Correction of typos. Change of mathematical notation. Addition of new sections, appendix, and supplementary material
The inner edge of the habitable zone for synchronously rotating planets around low-mass stars using general circulation models
Creators: name: Kopparapu, Ravi kumar
name: Wolf, Eric T.
name: Haqq-Misra, Jacob
name: Yang, Jun
name: Kasting, James F.
name: Meadows, Victoria
name: Terrien, Ryan
name: Mahadevan, Suvrath
Publisher: name: arXiv
Year: 2016
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: Terrestrial planets at the inner edge of the habitable zone of late-K and M-dwarf stars are expected to be in synchronous rotation, as a consequence of strong tidal interactions with their host stars. Previous global climate model (GCM) studies have shown that, for slowly-rotating planets, strong convection at the substellar point can create optically thick water clouds, increasing the planetary albedo, and thus stabilizing the climate against a thermal runaway. However these studies did not use self-consistent orbital/rotational periods for synchronously rotating planets placed at different distances from the host star. Here we provide new estimates of the inner edge of the habitable zone for synchronously rotating terrestrial planets around late-K and M-dwarf stars using a 3-D Earth-analog GCM with self-consistent relationships between stellar metallicity, stellar effective temperature, and the planetary orbital/rotational period. We find that both atmospheric dynamics and the efficacy of the substellar cloud deck are sensitive to the precise rotation rate of the planet. Around mid-to-late M-dwarf stars with low metallicity, planetary rotation rates at the inner edge of the HZ become faster, and the inner edge of the habitable zone is farther away from the host stars than in previous GCM studies. For an Earth-sized planet, the dynamical regime of the substellar clouds begins to transition as the rotation rate approaches ~10 days. These faster rotation rates produce stronger zonal winds that encircle the planet and smear the substellar clouds around it, lowering the planetary albedo, and causing the onset of the water-vapor greenhouse climatic instability to occur at up to ~25% lower incident stellar fluxes than found in previous GCM studies. For mid-to-late M-dwarf stars with high metallicity and for mid-K to early-M stars, we agree with previous studies.
description: Accepted to Astrophysical Journal. 31 pages, 11 figures
Determinant Formula for Parabolic Verma Modules of Lie Superalgebras
Creators: name: Oshima, Yoshiki
name: Yamazaki, Masahito
Publisher: name: arXiv
Year: 2016
Subjects: subject: Representation Theory (math.RT)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: We prove a determinant formula for a parabolic Verma module of a Lie superalgebra, previously conjectured by the second author. Our determinant formula generalizes the previous results of Jantzen for a parabolic Verma module of a (non-super) Lie algebra, and of Kac concerning a (non-parabolic) Verma module for a Lie superalgebra. The resulting formula is expected to have a variety of applications in the study of higher-dimensional supersymmetric conformal field theories. We also discuss irreducibility criteria for the Verma module.
description: 24 pages
Explicit solution of divide-and-conquer dividing by a half recurrences with polynomial independent term
Creators: name: Coronado, Tomás M.
name: Mir, Arnau
name: Rosselló, Francesc
Publisher: name: arXiv
Year: 2021
Subjects: subject: Discrete Mathematics (cs.DM)
subject: Combinatorics (math.CO)
subject: Populations and Evolution (q-bio.PE)
subject: FOS: Computer and information sciences
subject: FOS: Mathematics
subject: FOS: Biological sciences

description: Divide-and-conquer dividing by a half recurrences, of the form $x_n =a\cdot x_{\left\lceil{n}/{2}\right\rceil}+a\cdot x_{\left\lfloor{n}/{2}\right\rfloor}+p(n)$, $n\geq 2$, appear in many areas of applied mathematics, from the analysis of algorithms to the optimization of phylogenetic balance indices. The Master Theorems that solve these equations do not provide the solution's explicit expression, only its big-$Θ$ order of growth. In this paper we give an explicit expression (in terms of the binary decomposition of $n$) for the solution $x_n$ of a recurrence of this form, with given initial condition $x_1$, when the independent term $p(n)$ is a polynomial in $\lceil{n}/{2}\rceil$ and $\lfloor{n}/{2}\rfloor$.
description: 50 pages
Investigation of a nuclear-mitochondrial interaction in yeast
Creators: name: Ellis., Timothy Peter
Publisher: name: Monash University
Year: 2021

description: This thesis was scanned from the print manuscript for digital preservation and is copyright the author.
 Researchers can access this thesis by asking their local university, institution or public library to
 make a request on their behalf. Monash staff and postgraduate students can use the link in the References field.
Kondo effect in CeX$_{c}$ (X$_{c}$=S, Se, Te) studied by electrical resistivity under high pressure
Creators: name: Hayashi, Y.
name: Takai, S.
name: Matsumura, T.
name: Tanida, H.
name: Sera, M.
name: Matsubayashi, K.
name: Uwatoko, Y.
name: Ochiai, A.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We have measured the electrical resistivity of cerium monochalcogenices, CeS, CeSe, and CeTe, under high pressures up to 8 GPa. Pressure dependences of the antiferromagnetic ordering temperature $T_{N}$, crystal field splitting, and the $\ln T$ anomaly of the Kondo effect have been studied to cover the whole region from the magnetic ordering regime at low pressure to the Fermi liquid regime at high pressure. $T_{N}$ initially increases with increasing pressure, and starts to decrease at high pressure as expected from the Doniach's diagram. Simultaneously, the $\ln T$ behavior in the resistivity is enhanced, indicating the enhancement of the Kondo effect by pressure. It is also characteristic in CeX$_{c}$ that the crystal field splitting rapidly decreases at a common rate of $-12.2$ K/GPa. This leads to the increase in the degeneracy of the $f$ state and further enhancement of the Kondo effect. It is shown that the pressure dependent degeneracy of the $f$ state is a key factor to understand the pressure dependence of $T_{N}$, Kondo effect, magnetoresistance, and the peak structure in the temperature dependence of resistivity.
description: 9 pages, 5 figures, accepted for publication in J. Phys. Soc. Jpn
Sampling of conformational ensemble for virtual screening using molecular dynamics simulations and normal mode analysis
Creators: name: Moroy, G
name: Sperandio, O
name: Rielland, S
name: Khemka, S
name: Druart, K
name: Goyal, D.
name: Perahia, D.
name: Miteva, M. A.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Quantitative Methods (q-bio.QM)
subject: Biomolecules (q-bio.BM)
subject: FOS: Biological sciences

description: Aim: Molecular dynamics simulations and normal mode analysis are well-established approaches to generate receptor conformational ensembles (RCEs) for ligand docking and virtual screening. Here, we report new fast molecular dynamics-based and normal mode analysis-based protocols combined with conformational pocket classifications to efficiently generate RCEs. Materials \& methods: We assessed our protocols on two well-characterized protein targets showing local active site flexibility, dihydrofolate reductase and large collective movements, CDK2. The performance of the RCEs was validated by distinguishing known ligands of dihydrofolate reductase and CDK2 among a dataset of diverse chemical decoys. Results \& discussion: Our results show that different simulation protocols can be efficient for generation of RCEs depending on different kind of protein flexibility.
Identification of a postoperative survival scoring index for adult liver transplantation
Creators: name: Wang, Shuai
name: Lin, Xiaohong
name: Li, Yefu
name: Xie, Zhonghao
name: Zhang, Ming
name: Liang, Yicheng
name: Zhu, Chuchen
name: Dong, Yuqi
name: Zeng, Ping
name: He, Xiaoshun
name: Ju, Weiqiang
name: Chen, Maogen
Publisher: name: Taylor & Francis
Year: 2025
Subjects: subject: Medicine
subject: Immunology
subject: FOS: Clinical medicine
subject: Biological Sciences not elsewhere classified
subject: Developmental Biology
subject: Science Policy
subject: Hematology

description: In addition to surgical technology, successful liver transplantation (LT) depends on perioperative management, which needs an effective prognostic index. Therefore, a simplified and sensitive postoperative index for adult LT should be developed. In total, 906 patients who underwent LT were included in this cross-sectional study. Univariate analysis was used to identify the independent risk factors for recipient survival. Multivariate logistic and stepwise regression analyses were used to construct and simplify the model design. Area under the curve (AUC) and Kaplan–Meier’s (K–M) analysis demonstrated superiority of the new index. The postoperative survival score (POSS) index was further simplified via restricted cubic spline (RCS) analysis. Finally, the interpretation of the long-term mortality and subgroup analyses extended the application of the POSS index. Finally, a total of five factors (donor sex, recipient body mass index (BMI), total bilirubin (Tbil), international normalized ratio (INR) and total operative time) were identified as independent risk parameters and included in our POSS index. The AUCs of the original and simplified POSS indices were 0.764 and 0.723, respectively. Patients with high scores had poor short-term survival. Our index also functioned well in predicting long-term mortality, and it was more effective for patients with hepatitis B cirrhosis or hepatocellular carcinoma (HCC). We constructed a simplified and effective postoperative survival scoring index to predict short-term complications and survival in adult LT patients.
Stratospheric aftermath of the 2010 Storm on Saturn as observed by the TEXES instrument. I. Temperature structure
Creators: name: Fouchet, Thierry
name: Greathouse, Thomas K.
name: Spiga, Aymeric
name: Fletcher, Leigh N.
name: Guerlet, Sandrine
name: Leconte, Jérémy
name: Orton, Glenn S.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: We report on spectroscopic observations of Saturn's stratosphere in July 2011 with the Texas Echelon Cross Echelle Spectrograph (TEXES) mounted on the NASA InfraRed Telescope Facility (IRTF). The observations, targeting several lines of the CH$_4$ $ν_4$ band and the H$_2$ S(1) quadrupolar line, were designed to determine how Saturn's stratospheric thermal structure was disturbed by the 2010 Great White Spot. A study of Cassini Composite Infrared Spectrometer (CIRS) spectra had already shown the presence of a large stratospheric disturbance centered at a pressure of 2~hPa, nicknamed the beacon B0, and a tail of warm air at lower pressures (Fletcher et al. 2012. Icarus 221, 560--586). Our observations confirm that the beacon B0 vertical structure determined by CIRS, with a maximum temperature of $180\pm1$K at 2~hPa, is overlain by a temperature decrease up to the 0.2-hPa pressure level. Our retrieved maximum temperature of $180\pm1$K is colder than that derived by CIRS ($200\pm1$K), a difference that may be quantitatively explained by terrestrial atmospheric smearing. We propose a scenario for the formation of the beacon based on the saturation of gravity waves emitted by the GWS. Our observations also reveal that the tail is a planet-encircling disturbance in Saturn's upper stratosphere, oscillating between 0.2 and 0.02~hPa, showing a distinct wavenumber-2 pattern. We propose that this pattern in the upper stratosphere is either the signature of thermal tides generated by the presence of the warm beacon in the mid-stratosphere, or the signature of Rossby wave activity.
description: Accepted for publication in Icarus
Nonrelativistic energy of tritium-containing hydrogen molecule isotopologues
Creators: name: Pachucki, Krzysztof
name: Komasa, Jacek
Publisher: name: arXiv
Year: 2021
Subjects: subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: The nonrelativistic energy of low lying rovibrational levels of HT, DT, and \T\ is determined to an absolute accuracy of $10^{-7}-10^{-8}$ cm$^{-1}$ using the variational method with the four-body nonadiabatic James-Coolidge functions. The new results increase the accuracy of the nonrelativistic component of the energy levels by several orders of magnitude. As a consequence, the total transition energies are improved by at least an order of magnitude.
description: 13 pages
Addressing Strong Correlation by Approximate Coupled-Pair Methods with Active-Space and Full Treatments of Three-Body Clusters
Creators: name: Magoulas, Ilias
name: Shen, Jun
name: Piecuch, Piotr
Publisher: name: arXiv
Year: 2021
Subjects: subject: Chemical Physics (physics.chem-ph)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: When the number of strongly correlated electrons becomes larger, the single-reference coupled-cluster (CC) CCSD, CCSDT, etc. hierarchy displays an erratic behavior, while traditional multi-reference approaches may no longer be applicable due to enormous dimensionalities of the underlying model spaces. These difficulties can be alleviated by the approximate coupled-pair (ACP) theories, in which selected $(T_2)^2$ diagrams in the CCSD amplitude equations are removed, but there is no generally accepted and robust way of incorporating connected triply excited ($T_3$) clusters within the ACP framework. It is also not clear if the specific combinations of $(T_2)^2$ diagrams that work well for strongly correlated minimum-basis-set model systems are optimum when larger basis sets are employed. This study explores these topics by considering a few novel ACP schemes with the active-space and full treatments of $T_3$ correlations and schemes that scale selected $(T_2)^2$ diagrams by factors depending on the numbers of occupied and unoccupied orbitals. The performance of the proposed ACP approaches is illustrated by examining the symmetric dissociations of the $\text{H}_6$ and $\text{H}_{10}$ rings using basis sets of the triple- and double-$ζ$ quality and the $\text{H}_{50}$ linear chain treated with a minimum basis, for which the conventional CCSD and CCSDT methods fail.
description: 56 pages, 7 tables, 4 figures
Multiple-angle formulas of generalized trigonometric functions with two parameters
Creators: name: Takeuchi, Shingo
Publisher: name: arXiv
Year: 2016
Subjects: subject: Classical Analysis and ODEs (math.CA)
subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics

description: Generalized trigonometric functions with two parameters were introduced by Drábek and Manásevich to study an inhomogeneous eigenvalue problem of the $p$-Laplacian. Concerning these functions, no multiple-angle formula has been known except for the classical cases and a special case discovered by Edmunds, Gurka and Lang, not to mention addition theorems. In this paper, we will present new multiple-angle formulas which are established between two kinds of the generalized trigonometric functions, and apply the formulas to generalize classical topics related to the trigonometric functions and the lemniscate function.
description: 19 pages
Texture zeros in neutrino mass matrix
Creators: name: Dziewit, Bartosz
name: Holeczek, Jacek
name: Richter, Monika
name: Zając, Sebastian
name: Zrałek, Marek
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The Standard Model does not explain the hierarchy problem. Before the discovery of nonzero lepton mixing angle θ13 high hopes in explanation of the shape of the lepton mixing matrix were combined with non abelian symmetries. Nowadays, assuming one Higgs doublet, it is unlikely that this is still valid. Texture zeroes, that are combined with abelian symmetries, are intensively studied. The neutrino mass matrix is a natural way to study such symmetries.
description: 11 pages, 2 figures, the topic presented at the IX International Symposium :" Quantum Theory and Symmetries" in Yerevan, Armenia (July 2015)
Radiative Neutrino Mass with $Z_3$ Dark matter: From Relic Density to LHC Signatures
Creators: name: Ding, Ran
name: Han, Zhi-Long
name: Liao, Yi
name: Xie, Wan-Peng
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: In this work we give a comprehensive analysis on the phenomenology of a specific $\mathbb{Z}_3$ dark matter (DM) model in which neutrino mass is induced at two loops by interactions with a DM particle that can be a complex scalar or a Dirac fermion. Both the DM properties in relic density and direct detection and the LHC signatures are examined in great detail, and indirect detection for gamma-ray excess from the Galactic Center is also discussed briefly. On the DM side, both semi-annihilation and co-annihilation processes play a crucial role in alleviating the tension of parameter space between relic density and direct detection. On the collider side, new decay channels resulting from $\mathbb{Z}_3$ particles lead to distinct signals at LHC. Currently the trilepton signal is expected to give the most stringent bound for both scalar and fermion DM candidates, and the signatures of fermion DM are very similar to those of electroweakinos in simplified supersymmetric models.
description: 40 pages, 24 figures
Path computation in multi-layer multi-domain networks: A language theoretic approach
Creators: name: Lamali, Mohamed Lamine
name: Pouyllau, Hélia
name: Barth, Dominique
Publisher: name: arXiv
Year: 2015
Subjects: subject: Data Structures and Algorithms (cs.DS)
subject: Formal Languages and Automata Theory (cs.FL)
subject: Networking and Internet Architecture (cs.NI)
subject: FOS: Computer and information sciences

description: Multi-layer networks are networks in which several protocols may coexist at different layers. The Pseudo-Wire architecture provides encapsulation and de-capsulation functions of protocols over Packet-Switched Networks. In a multi-domain context, computing a path to support end-to-end services requires the consideration of encapsulation and decapsulation capabilities. It appears that graph models are not expressive enough to tackle this problem. In this paper, we propose a new model of heterogeneous networks using Automata Theory. A network is modeled as a Push-Down Automaton (PDA) which is able to capture the encapsulation and decapsulation capabilities, the PDA stack corresponding to the stack of encapsulated protocols. We provide polynomial algorithms that compute the shortest path either in hops or in the number of encapsulations and decapsulations along the inter-domain path, the latter reducing manual configurations and possible loops in the path.
description: Journal on Computer Communications, 2013
Optimization of FLASH Proton Beams Using a Track-Repeating Algorithm
Creators: name: Wang, Qianxia
name: Titt, Uwe
name: Mohan, Radhe
name: Guan, Fada
name: Zhao, Yao
name: Yang, Ming
name: Yepes, Pablo
Publisher: name: arXiv
Year: 2021
Subjects: subject: Medical Physics (physics.med-ph)
subject: FOS: Physical sciences

description: Methods: A phase space file in a plane at 202 mm downstream of the beam exit window is generated through tuning parameters to match FDC results with measured or MCNPX Monte Carlo-simulated integrated depth-dose distribution (IDD) and lateral dose profiles. To spread out the Bragg peak, widen the beam and reduce the penumbra, a ridge filter (RF), a high-Z material scatterer and a collimator with compensator are inserted in the beam path and their shapes and sizes have been optimized. The FDC calculations are validated by comparing Geant4 Monte Carlo simulations. In addition, a set of algorithms to automatically choose the optimum dimensions of the beam shaping elements is developed and tested using the same beams. At the last part, dose rates for optimized beams were estimated by scaling their dose distributions to that of their original beams. Results: The optimized 86.4 MeV beam had an 8.5 mm wide spread-out Bragg peak (SOBP) (proximal 90% to distal 90% of the maximum dose), 14.5 mm, 12.0 mm and 11.0 lateral widths with dose above 50%, 80% and 90% respectively and a 2.5 mm penumbra from 80% to 20% in the lateral profile for the energy. The 159.5 MeV beam had a SOBP of 39.0 mm and the lateral widths with dose above 50%, 80% and 90% of 20.5 mm, 15.0 and 12.5 mm when the source to surface distance (SSD) was 550 mm. Wider lateral widths was obtained with increased SSD. The FDC calculations had passing rates higher than 96% using 3mm/3% as the gamma-index criterion comparing with Geant4 simulations for both energies. The set of automatic algorithms can choose the proper dimensions for the high-density scatterer, RF, collimator and compensator efficiently. And the optimized 159.5 MeV beam with different SDDs had entrance dose rate higher than 40 Gy/s if the entrance dose rate of the original beam was 150 Gy/s.
description: 15 pages, 7 figures, two tables
Lax representation of the hyperbolic van Diejen dynamics with two coupling parameters
Creators: name: Pusztai, B. G.
name: Gorbe, T. F.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Mathematical Physics (math-ph)
subject: High Energy Physics - Theory (hep-th)
subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: FOS: Physical sciences

description: In this paper, we construct a Lax pair for the classical hyperbolic van Diejen system with two independent coupling parameters. Built upon this construction, we show that the dynamics can be solved by a projection method, which in turn allows us to initiate the study of the scattering properties. As a consequence, we prove the equivalence between the first integrals provided by the eigenvalues of the Lax matrix and the family of van Diejen's commuting Hamiltonians. Also, at the end of the paper, we propose a candidate for the Lax matrix of the hyperbolic van Diejen system with three independent coupling constants.
description: 38 pages
Precision measurement of quasi-bound resonances in H$_2$ and the H + H scattering length
Creators: name: Lai, K. F.
name: Salumbides, E. J.
name: Beyer, M.
name: Ubachs, W.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: Quasi-bound resonances of H$_2$ are produced via two-photon photolysis of H$_2$S molecules as reactive intermediates or transition states, and detected before decay of the parent molecule into three separate atoms. As was previously reported [K.F. Lai et al., Phys. Rev. Lett. 127, 183001 (2021)] four centrifugally bound quantum resonances with lifetimes of multiple $μ$s, lying energetically above the dissociation limit of the electronic ground state X$^1Σ_g^+$ of H$_2$, were observed as X($v,J$) = (7,21)$^*$, (8,19)$^*$, (9,17)$^*$, and (10,15)$^*$, while also the short-lived ($\sim 1.5$ ns) quasi-bound resonance X(11,13)$^*$ was probed. The present paper gives a detailed account on the identification of the quasi-bound or shape resonances, based on laser detection via F-X two-photon transitions, and their strongly enhanced Franck-Condon factors due to the shifting of the wave function density to large internuclear separation. In addition, the assignment of the rotational quantum number is verified by subsequent multi-step laser excitation into autoionization continuum resonances. Existing frameworks of full-fledged ab initio computations for the bound region in H$_2$, including Born-Oppenheimer, adiabatic, non-adiabatic, relativistic and quantum-electrodynamic contributions, are extended into the energetic range above the dissociation energy. These comprehensive calculations are compared to the accurate measurements of energies of quasi-bound resonances, finding excellent agreement. Etc.
description: Accepted Molecular Physics