cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Ki-Pode: Keypoint-based Implicit Pose Distribution Estimation of Rigid Objects
Creators: name: Iversen, Thorbjørn Mosekjær
name: Haugaard, Rasmus Laurvig
name: Buch, Anders Glent
Publisher: name: arXiv
Year: 2022
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Artificial Intelligence (cs.AI)
subject: Machine Learning (cs.LG)
subject: Robotics (cs.RO)
subject: FOS: Computer and information sciences

description: The estimation of 6D poses of rigid objects is a fundamental problem in computer vision. Traditionally pose estimation is concerned with the determination of a single best estimate. However, a single estimate is unable to express visual ambiguity, which in many cases is unavoidable due to object symmetries or occlusion of identifying features. Inability to account for ambiguities in pose can lead to failure in subsequent methods, which is unacceptable when the cost of failure is high. Estimates of full pose distributions are, contrary to single estimates, well suited for expressing uncertainty on pose. Motivated by this, we propose a novel pose distribution estimation method. An implicit formulation of the probability distribution over object pose is derived from an intermediary representation of an object as a set of keypoints. This ensures that the pose distribution estimates have a high level of interpretability. Furthermore, our method is based on conservative approximations, which leads to reliable estimates. The method has been evaluated on the task of rotation distribution estimation on the YCB-V and T-LESS datasets and performs reliably on all objects.
description: 11 pages, 2 figures
Collective electronic pulsation around giant nuclei in the Thomas-Fermi model
Creators: name: Ludwig, Hendrik
name: Ruffini, Remo
name: Xue, She-Sheng
Publisher: name: arXiv
Year: 2014
Subjects: subject: Plasma Physics (physics.plasm-ph)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Based on the Thomas-Fermi solution for compressed electron gas around a giant nucleus, $Z\approx 10^6$, we study electric pulsations of electron number-density, pressure and electric fields, which could be caused by an external perturbations acting on the nucleus or the electrons themselves. We numerically obtain the eigen-frequencies and eigen-functions for stationary pulsation modes that fulfill the boundary-value problem established by electron-number and energy-momentum conservation, equation of state, laws of thermodynamics, and Maxwell's equations, as well as physical boundary conditions. We choose a proton number of $Z=10^6$ and assume the nucleons in $β$-equilibrium at nuclear density. Similar systems with non-spherical geometry are hypothesized to exist in the lower crust of neutron stars, commonly referred to as \textit{pasta equation of state}. The lowest modes turn out to be heavily influenced by the relativistic plasma frequency induced by the positive charge background in the nucleus. We discuss the possibility to apply our results to dynamic nuclei using the spectral method and mention mechanisms that could stimulate such dynamics in the astrophysical context.
On the Cauchy Problem for Elliptic Complexes in Spaces of Distributions
Creators: name: Shlapunov, Alexander
name: Fedchenko, Dmitrii
Publisher: name: arXiv
Year: 2011
Subjects: subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics
subject: 35N10, 58J10

description: Let D be a bounded domain in n-dimensional Eucledian space with a smooth boundary. We indicate appropriate Sobolev spaces of negative smoothness to study the non-homogeneous Cauchy problem for an elliptic differential complex {A_i} of first order operators. In particular, we describe traces on the boundary of tangential part t_i (u) and normal part n_i(u) of a (vector)-function u from the corresponding Sobolev space and give an adequate formulation of the problem. If the Laplacians of the complex satisfy the uniqueness condition in the small then we obtain necessary and sufficient solvability conditions of the problem and produce formulae for its exact and approximate solutions. For the Cauchy problem in the Lebesgue spaces L^2(D) we construct the approximate and exact solutions to the Cauchy problem with maximal possible regularity. Moreover, using Hilbert space methods, we construct Carleman's formulae for a (vector-) function u from the Sobolev space H^1(D) by its Cauchy data t_i (u) on a subset S on the boundary of the domain D and the values of A_i u in D modulo the null-space of the Cauchy problem. Some instructive examples for elliptic complexes of operators with constant coefficients are considered.
description: The investigations were supported by DAAD and by RFBR grant 11-01-00852a
title: Ð¤Ð¸Ð·Ð¸ÐºÐ°. ÐÐ½. 1
title: ÑÑÐµÐ±Ð½Ð¸Ðº Ð´Ð»Ñ Ð¸Ð½Ð¾ÑÑÑÐ°Ð½Ð½ÑÑ ÑÑÑÐ´ÐµÐ½ÑÐ¾Ð²
titleType: Subtitle
Creators: name: ÐÑÑÐµÐ½ÑÐµÐ², ÐÐ¼Ð¸ÑÑÐ¸Ð¹
name: ÐÐ¾Ð·Ð»Ð¾Ð², ÐÐ¸ÑÐ°Ð¸Ð»
name: ÐÑÐ·Ð½ÐµÑÐ¾Ð²Ð°, Ð¢Ð°ÑÑÑÐ½Ð°
name: Ð£ÑÐ²Ð°Ð½ÑÐµÐ²Ð°, Ð.
name: Ð¢ÐµÐ»ÐµÑ, Ð¢Ð°ÑÑÑÐ½Ð°
Publisher: name: ÐÐ·Ð´-Ð²Ð¾ ÐÐ¾Ð»Ð¸ÑÐµÑÐ½. ÑÐ½-ÑÐ°
Year: 2016
Subjects: Ð¤Ð¸Ð·Ð¸ÐºÐ°

description: Ð¡Ð¾ÑÑÐ°Ð²Ð»ÐµÐ½ Ð² ÑÐ¾Ð¾ÑÐ²ÐµÑÑÑÐ²Ð¸Ð¸ Ñ ÑÐµÐ´ÐµÑÐ°Ð»ÑÐ½ÑÐ¼ Ð³Ð¾ÑÑÐ´Ð°ÑÑÑÐ²ÐµÐ½Ð½ÑÐ¼ Ð¾Ð±ÑÐ°Ð·Ð¾Ð²Ð°ÑÐµÐ»ÑÐ½ÑÐ¼ ÑÑÐ°Ð½Ð´Ð°ÑÑÐ¾Ð¼ Ð´Ð¸ÑÑÐ¸Ð¿Ð»Ð¸Ð½Ñ Â«Ð¤Ð¸Ð·Ð¸ÐºÐ°Â». ÐÑÐµÐ´ÑÑÐ°Ð²Ð»ÐµÐ½Ñ Ð±Ð°Ð·Ð¸ÑÐ½ÑÐµ Ð¿Ð¾Ð½ÑÑÐ¸Ñ, ÑÐµÑÐ¼Ð¸Ð½Ñ Ð¸ Ð·Ð°ÐºÐ¾Ð½Ñ ÑÐ¸Ð·Ð¸ÐºÐ¸. Ð¢ÐµÐºÑÑÐ¾Ð²ÑÐ¹ Ð¼Ð°ÑÐµÑÐ¸Ð°Ð» Ð´Ð¾Ð¿Ð¾Ð»Ð½ÐµÐ½ Ð½ÐµÐ¾Ð±ÑÐ¾Ð´Ð¸Ð¼ÑÐ¼Ð¸ Ð¸Ð»Ð»ÑÑÑÑÐ°ÑÐ¸ÑÐ¼Ð¸ Ð¸ ÑÐ¿ÑÐ°Ð²Ð¾ÑÐ½ÑÐ¼Ð¸ Ð¼Ð°ÑÐµÑÐ¸Ð°Ð»Ð°Ð¼Ð¸. Ð ÐºÐ°Ð¶Ð´Ð¾Ð¼ ÑÐ°Ð·Ð´ÐµÐ»Ðµ Ð¿ÑÐ¸Ð²ÐµÐ´ÐµÐ½Ñ Ð¿ÑÐ¸Ð¼ÐµÑÑ ÑÐµÑÐµÐ½Ð¸Ñ ÑÐ¸Ð¿Ð¾Ð²ÑÑ Ð·Ð°Ð´Ð°Ñ Ð¸ Ð·Ð°Ð´Ð°ÑÐ¸ Ð´Ð»Ñ ÑÐ°Ð¼Ð¾ÑÑÐ¾ÑÑÐµÐ»ÑÐ½Ð¾Ð³Ð¾ ÑÐµÑÐµÐ½Ð¸Ñ ÑÑÑÐ´ÐµÐ½ÑÐ¾Ð². ÐÑÐµÐ´Ð½Ð°Ð·Ð½Ð°ÑÐµÐ½ Ð´Ð»Ñ ÑÐ°Ð¼Ð¾ÑÑÐ¾ÑÑÐµÐ»ÑÐ½Ð¾Ð¹ ÑÐ°Ð±Ð¾ÑÑ Ð¸Ð½Ð¾ÑÑÑÐ°Ð½Ð½ÑÑ ÑÑÑÐ´ÐµÐ½ÑÐ¾Ð² Ð¿ÑÐ¸ Ð¸Ð·ÑÑÐµÐ½Ð¸Ð¸ ÐºÑÑÑÐ° ÑÐ¸Ð·Ð¸ÐºÐ¸. Ð£ÑÐµÐ±Ð½Ð¸Ðº Ð¼Ð¾Ð¶ÐµÑ Ð±ÑÑÑ ÑÐ°ÐºÐ¶Ðµ Ð¿Ð¾Ð»ÐµÐ·ÐµÐ½ Ð´Ð»Ñ ÑÑÐ°ÑÐ¸ÑÑÑ ÑÐºÐ¾Ð», Ð»Ð¸ÑÐµÐµÐ², Ð³Ð¸Ð¼Ð½Ð°Ð·Ð¸Ð¹ Ð´Ð»Ñ Ð¿Ð¾Ð´Ð³Ð¾ÑÐ¾Ð²ÐºÐ¸ Ðº ÑÐºÐ·Ð°Ð¼ÐµÐ½Ð°Ð¼ Ð² Ð²ÑÐ·Ñ Ð¸ ÑÐ°Ð¼Ð¾Ð¾Ð±ÑÐ°Ð·Ð¾Ð²Ð°Ð½Ð¸Ñ.
Low-lying 2$^+$ states generated by $pn$-quadrupole correlation and $N=28$ shell quenching
Creators: name: Ebata, Shuichiro
name: Kimura, Masaaki
Publisher: name: arXiv
Year: 2014
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: The quadrupole vibrational modes of neutron-rich $N$=28 isotones ($^{48}$Ca, $^{46}$Ar, $^{44}$S and $^{42}$Si) are investigated using the canonical-basis time-dependent Hartree-Fock-Bogoliubov theory with several choice of energy density functionals, including nuclear pairing correlation. It is found that the quenching of $N$=28 shell gap and the proton holes in the $sd$-shell trigger quadrupole correlation and increase the collectivity of the low-lying 2$^+$ state in $^{46}$Ar. It is also found that the pairing correlation plays an important role to increase the collectivity. We also demonstrate that the same mechanism to enhance the low-lying collectivity applies to other $N$=28 isotones $^{44}$S and $^{42}$Si, and it generates a couple of low-lying 2$^+$ states which can be associated with the observed $2^+$ states.
description: 7 page and 4 figures
title: Testing for Parameter Stability in DSGE Models. The Cases of France, Germany and Spain
Creators: name: Jerger, Jürgen
name: Röhe, Oke
Publisher: name: Universität Regensburg
Year: 2009
Subjects: subject: DSGE, EMU, Monetary Policy, Structural Breaks
subject: 330 Wirtschaft
subject: E31, E32, E52

description: We estimate a New Keynesian DSGE model on French, German and Spanish data. The main aim of this paper is to check for the respective sets of parameters that are stable over time, making use of the ESS procedure ( ”Estimate of Set of Stable parameters“) developed by Inoue and Rossi (2011). This new econometric technique allows to address the stability properties of each single parameter in a DSGE model separately. In the case of France and Germany our results point to structural breaks after the beginning of the second stage of EMU in the mid-nineties, while the estimates for Spain show a significant break just before the start of the third stage in 1998. Specifically, there are significant changes in monetary policy behavior for France and Spain, while monetary policy in Germany seems to be stable over time.
KICHIK TADBIRKORLIK SUBYEKTLARIDA YOLLANIB ISHLAYOTGAN SHAXSLAR MEHNATINI HUQUQIY JIHATDAN TARTIBGA SOLISHNING O'ZIGA XOS XUSUSIYATLARI
Creators: name: Yo'ldoshev, Dilshodbek
Publisher: name: Zenodo
Year: 2024

description: Ushbu tezis kichik tadbirkorlik subyektlarida faoliyat yuritayotgan shaxslar mehnatini huquqiy jihatdan tartibga solishning o’ziga xos xususiyatlarini o’rganadi.Tadbirkorlik faoliyati, jumladan kichik tadbirkorlik subyektlari uning huquqiy asoslari va o’ziga xos jihatylarini ilmiy jihatdan taxlil qilish, ushbu  masalalarning  zamonaviy  huquqiy  va  ijtimoiy amaliyotidagi  ahamiyatini  yoritishni maqsad  qilngan. Ish beruvchi va xodimlarning mehnatini huquqiy jihatdan tartibga solishda mehnat shartnomalariga oid o‘ziga xos xususiyatlar o’rganilgan.
Die Visualisierung des Nichtsagbaren oder das Verschwinden der Bilder in Paco Rocas Arrugas (2007)
Creators: name: Hertrampf, Marina Ortrud M.
Publisher: name: Universität Regensburg
Year: 2010
Subjects: subject: Comic Spanien Paco Roca Dokufiktion Alzheimer
subject: 860 Spanische und portugiesische Literatur

description: Der Beitrag beleuchtet die Comic-Landschaft Spanienens. Anhand der Analyse desComics "Arrugas" von Paco Roca wird das Genre des dokufiktionalen Comics erläutert.
Scaled-free objects II
Creators: name: Grilliette, Will
Publisher: name: arXiv
Year: 2014
Subjects: subject: Functional Analysis (math.FA)
subject: FOS: Mathematics
subject: 46M99

description: This work creates two categories of "array-weighted sets" for the purposes of constructing universal matrix-normed spaces and algebras. These universal objects have the analogous universal property to the free vector space, lifting maps completely bounded on a generation set to a completely bounded linear map of the matrix-normed space. Moreover, the universal matrix-normed algebra is used to prove the existence of a free product for matrix-normed algebras using algebraic methods.
description: 46 pages. Version 4 fixed a few minor typos. Version 3 added matricial completion; fixed an arithmetic error in Example 3.5.10. Version 2 added a preliminaries section on weighted sets and matricial Banach spaces, incorporating much of "Matricial Banach spaces" in summary; fixed a domain issue in Lemma 3.3.2; simplified Examples 3.5.10 and 4.11; added more proofs to Sections 4 and 5
Agglomeration and regional unemployment differentials
Creators: name: vom Berge, Philipp
Publisher: name: Universität Regensburg
Year: 2011
Subjects: subject: Regional labor markets, New Economic Geography, job matching, unemployment
subject: 330 Wirtschaft
subject: F12, J61, J64, R12

description: This paper develops a solvable general equilibrium agglomeration model, where search frictions for low-skilled immobile workers generate regional unemployment differentials. Contrary to other work in this field, the model yields a higher long-run unemployment rate in the core region. This is because low-skilled manufacturing jobs are more valuable there and unemployment works as a compensating differential. It therefore more closely resembles the classical result of Harris and Todaro (1970). One main difference is that here regions are ex ante equal. I derive expressions for the break and sustain point and analyze the effect of search frictions on their location.
Cancelation norm and the geometry of biinvariant word metrics
Creators: name: Brandenbursky, Michael
name: Gal, Światosław R.
name: Kędra, Jarek
name: Marcinkowski, Michał
Publisher: name: arXiv
Year: 2013
Subjects: subject: Geometric Topology (math.GT)
subject: Group Theory (math.GR)
subject: FOS: Mathematics

description: We study biinvariant word metrics on groups. We provide an efficient algorithm for computing the biinvariant word norm on a finitely generated free group and we construct an isometric embedding of a locally compact tree into the biinvariant Cayley graph of a nonabelian free group. We investigate the geometry of cyclic subgroups. We observe that in many classes of groups cyclic subgroups are either bounded or detected by homogeneous quasimorphisms. We call this property the bq-dichotomy and we prove it for many classes of groups of geometric origin.
description: 33 pages, updated version
On the use of charged-track information to subtract neutral pileup
Creators: name: Cacciari, Matteo
name: Salam, Gavin P.
name: Soyez, Gregory
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: The use of charged pileup tracks in a jet to predict the neutral pileup component in that same jet could potentially lead to improved pileup removal techniques, provided there is a strong local correlation between charged and neutral pileup. In Monte Carlo simulation we find that the correlation is however moderate, a feature that we attribute to characteristics of the underlying non-perturbative dynamics. Consequently, `neutral-proportional-to-charge' (NpC) pileup mitigation approaches do not outperform existing, area-based, pileup removal methods. This finding contrasts with the arguments made in favour of a new method, "jet cleansing", in part based on the NpC approach. We identify the critical differences between the performances of linear cleansing and trimmed NpC as being due to the former's rejection of subjets that have no charged tracks from the leading vertex, a procedure that we name "zeroing". Zeroing, an extreme version of the "charged-track trimming" proposed by ATLAS, can be combined with a range of pileup-mitigation methods, and appears to have both benefits and drawbacks. We show how the latter can be straightforwardly alleviated. We also discuss the limited potential for improvement that can be obtained by linear combinations of the NpC and area-subtraction methods.
description: 27 pages, 10 figures; v2 adapts the discussion of cleansing to the trimming parameter choice clarified in v2 of the cleansing paper (arXiv:1309.4777) and identifies and analyses the origin of differences with NpC
title: Monte Carlo Simulation of Thallium-Bromide Semiconductor Detector for Range Verification of a Carbon Ion Radiotherapy Beam through Prompt Gamma-Ray Detection
Creators: name: Dimpfl, Peter
Publisher: name: University of Nevada, Las Vegas
Year: 2022

description: Thallium-Bromide is a semiconductor material which is well suited for photon detection. Composed of high atomic number elements and a high mass density of 7.56 g/cm3, TlBr has superb photon stopping power. External beam radiation therapy is an ever-changing environment with technology rapidly improving. With proton therapy facilities becoming more widely available, and carbon ion facilities showcasing the benefits of carbon ion radiation therapy, there is an industry need toprovide accurate dosimetric treatment plans to verify patients are receiving proper care. Current clinical practices apply safety margins to clinical target volumes to safe treatment. Through research to improve detection techniques, safety margins may decrease leading to more accurate dose deposition and improved treatments. In this study, Monte Carlo simulations were completed to evaluate TlBr performance in the detection of prompt gamma-rays generated from the irradiation of a Polymethyl methacrylate (PMMA) phantom with carbon ions. TlBr was able to detect the prompt gamma ray profiles of three different materials (cortical bone, adipose tissue, PMMA) with correlation to actual simulated Bragg peaks. The spectra of secondary particles were captured using different collimator configurations. The spectral data confirmed that most prompt gamma rays detected are of 4.44MeV, originating from the de-excitation of 16O. Using opposed detectors, TlBr was able to detect range shifts of 2, 4, 6, 8, and 10mm when a phantom was set in motion along the beam axis. Furthermore, using the detection of 511keV coincident photons from positron annihilation, the location of deposition in the transverse plane was possible. This study demonstrated the power and usefulness of Monte Carlo simulations for many applications including energy, dose deposition, motion, spectra, and time-of-flight. The results of modeling showed the capability of TlBr to accurately determine the prompt gamma ray profiles produced from carbon ion irradiation.
The Chemical Composition of Adamite Roll
Creators: name: Harbin Tinvo Imp and Exp Trading Co., Ltd.
Publisher: name: Zenodo
Year: 2024
Subjects: Adamite steel
adamite roll
adamite roll chemical composition

description: Adamite steel are a metal known for its ability to withstand high temperatures, making it ideal for use in demanding environments such as foundries and metal processing plants, particularly for steel mill adamite rolls used in the production of steel and aluminum. Additionally, adamite steel is resistant to corrosion and abrasion, ensuring a longer service life and lower maintenance costs for manufacturers. The adamite roll chemical composition typically includes carbon, manganese, silicon and other alloying elements. These elements are combined in specific proportions to achieve the strength, hardness and wear resistance required for the intended application.

 

Acicular eutectic carbides are destabilized at around 600 °C. Therefore, when used for a long period of time under hot rolling conditions, irregularly dispersed eutectic carbides are destabilized, leading to a reduction in roll performance. Stability and lower eutectic carbides are reduced during operation and the requirements of the mill rolls during operation are adjusted accordingly. Maintaining normal temperatures is important to prevent spalling. Studies have shown that the amount of graphite in the roll body increases over time, with graphite elements of 0.95-1.3%. Iron and steel are used in the manufacture of graphite for ductile cast iron. In the manufacture of rolls with a carbon content of 0.9-1.45%, a large inflow of graphite occurs due to the formation of rolls with a two-phase structure.

 

The silicon content must be higher than 0.8% of the steel batch, and silicon is usually added to improve the metal's oxidation resistance and thermal stability, making it more suitable for high-temperature applications; the carbon content must be between 1.1% and 2.4%, and the higher carbon content improves the metal's hardness, making it better suited for heavy-duty applications that require wear and abrasion resistance; manganese is another important element in the chemical composition of diamond rolls, as it helps to increase the hardness and metal strength; the addition of alloying elements such as nickel and chromium enhances the properties of the material, thereby increasing its wear resistance and service life.

 

In summary, the chemical composition of adamite rolls for steel rolling mills is strictly controlled by adjusting the proportions of carbon, manganese, silicon and other alloying elements to ensure that the mill rolls perform and meet the specific requirements of the production process. Understanding the adamite roll chemical composition is essential to ensure the quality and performance of metals in a variety of industrial processes.
title: Design and Fabrication of an Apparatus for Tao High-Resolution Laser Spectroscopy
Creators: name: Chung, Timothy
Publisher: name: University of Nevada, Las Vegas
Year: 2022

description: In this study, an apparatus for the high-resolution laser spectroscopy of molecules is designed and constructed. The apparatus is used to identify TaO transitions, but may be used for any other molecular species in the future. It will also later be used for experiments such as quantum logic spectroscopy, which are enabled by attachable chambers that can be supplied with molecules from the apparatus. Several considerations are made to improve the quality and longevity of the apparatus such as regulating the rovibrational states of the produced molecules, optimizing the linewidth of the ionization lasers, reducing noise from sources such as laser scattering, creating interlocks, and more. As a final test, we check for Ta and TaO signals at known transitions. A rough scan through the wavelength range of 615.6 - 629.8 nm and its frequency doubled counterpart yields peaks for Ta that correspond to 310.4150 and 312.8772 nm from the NIST Atomic Spectra Database. Two peaks for TaO agree with v00 transitions from the ground to E (15880.6 cm−1) and F 10 (16051 cm−1) states found in the NIST Chemistry WebBook, while a third peak is likely associated with the v11 transition from the ground to F 10 state. Our scan shows good agreement, and so the next step is to improve the scan resolution to study the spectrum in more detail.
Decomposition matrices are generically trivial
Creators: name: Thiel, Ulrich
Publisher: name: arXiv
Year: 2014
Subjects: subject: Representation Theory (math.RT)
subject: Rings and Algebras (math.RA)
subject: FOS: Mathematics
subject: 16G99

description: We establish a genericity property in the representation theory of a flat family of finite-dimensional algebras in the sense of Cline-Parshal-Scott. More precisely, we show that the decomposition matrices as introduced by Geck and Rouquier of an algebra which is free of finite dimension over a noetherian integral domain and which splits over the fraction field of this ring are generically trivial, i.e., they are trivial in an open neighborhood of the generic point of the spectrum of the base ring. This generalizes a classical result by Brauer in modular representation theory of finite groups. We furthermore show that this is true precisely on an open set in case all fibers of the algebra split. In this way we get a stratification of the base scheme such that decomposition maps are trivial on each stratum. Moreover, this defines a new discriminant of such algebras which generalizes Schur elements of simple modules for symmetric split semisimple algebras. We provide some extensions to the theory of decomposition maps allowing us to work without the usual normality assumption on the base ring.
description: 27 pages. Final version to appear in Int. Math. Res. Not. This version is an extension and improvement of V3 in which we, for example, remove the assumption on the normality of the base ring. To this end, we provide several extensions to the theory of decomposition maps. Furthermore, added several examples and changed 'maps' to 'matrices' in the title
Spectral flows associated to flux tubes
Creators: name: De Nittis, Giuseppe
name: Schulz-Baldes, Hermann
Publisher: name: arXiv
Year: 2014
Subjects: subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: When a flux quantum is pushed through a gapped two-dimensional tight-binding operator, there is an associated spectral flow through the gap which is shown to be equal to the index of a Fredholm operator encoding the topology of the Fermi projection. This is a natural mathematical formulation of Laughlin's Gedankenexperiment. It is used to provide yet another proof of the bulk-edge correspondence. Furthermore, when applied to systems with time reversal symmetry, the spectral flow has a characteristic $Z_2$ signature, while for particle-hole symmetric systems it leads to a criterion for the existence of zero energy modes attached to half-flux tubes. Combined with other results, this allows to explain all strong invariants of two-dimensional topological insulators in terms of a single Fredholm operator.
description: final version, to appear in Ann. H. Poincare
Loss-tolerant hybrid measurement test of CHSH inequality with weakly amplified N00N states
Creators: name: Töppel, Falk
name: Stobińska, Magdalena
Publisher: name: arXiv
Year: 2014
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Although our understanding of Bell's theorem and experimental techniques to test it have improved over the last 40 years, thus far all Bell tests have suffered at least from the detection or the locality loophole. Most photonic Bell tests rely on inefficient discrete-outcome measurements, often provided by photon counting detection. One possible way to close the detection loophole in photonic Bell tests is to involve efficient continuous-variable measurements instead, such as homodyne detection. Here, we propose a test of the Clauser-Horne-Shimony-Holt (CHSH) inequality that applies photon counting and homodyne detection on weakly amplified two-photon N00N states. The scheme suggested is remarkably robust against experimental imperfections and suits the limits of current technology. As amplified quantum states are considered, our work also contributes to the exploration of entangled macroscopic quantum systems. Further, it may constitute an alternative platform for a loophole-free Bell test, which is also important for quantum-technological applications.
description: 9 pages, 3 figures
Spectral flows of dilations of Fredholm operators
Creators: name: De Nittis, Giuseppe
name: Schulz-Baldes, Hermann
Publisher: name: arXiv
Year: 2014
Subjects: subject: Mathematical Physics (math-ph)
subject: Functional Analysis (math.FA)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: Given an essentially unitary contraction and an arbitrary unitary dilation of it, there is a naturally associated spectral flow which is shown to be equal to the index of the operator. This purely operator theoretic result is interpreted in terms of the $K$-theory of an associated mapping cone. It is then extended to connect $Z_2$ indices of odd symmetric Fredholm operators to a $Z_2$-valued spectral flow.
description: final version, to appear in Cand. Math. Bull
Exploiting stochastic locality in lattice QCD: hadronic observables and their uncertainties
Creators: name: Bruno, Mattia
name: Cè, Marco
name: Francis, Anthony
name: Fritzsch, Patrick
name: Green, Jeremy Russell
name: Hansen, Maxwell T.
name: Rago, Antonio
Publisher: name: Deutsches Elektronen-Synchrotron, DESY, Hamburg
Year: 2023
Subjects: mass, gap
lattice field theory
gauge field theory
stochastic
statistics
Monte Carlo
correlation function
fluctuation
lattice
history

description: Because of the mass gap, lattice QCD simulations exhibit stochastic locality: distant regions of the lattice fluctuate independently. There is a long history of exploiting this to increase statistics by obtaining multiple spatially-separated samples from each gauge field; in the extreme case, we arrive at the master-field approach in which a single gauge field is used. Here we develop techniques for studying hadronic observables using position-space correlators, which are more localized, and compare with the standard time-momentum representation. We also adapt methods for estimating the variance of an observable from autocorrelated Monte Carlo samples to the case of correlated spatially-separated samples.
Modulation of pure spin currents with a ferromagnetic insulator
Creators: name: Villamor, Estitxu
name: Isasa, Miren
name: Vélez, Saül
name: Bedoya-Pinto, Amilcar
name: Vavassori, Paolo
name: Hueso, Luis E.
name: Bergeret, F. Sebastian
name: Casanova, Fèlix
Publisher: name: arXiv
Year: 2014
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We propose and demonstrate spin manipulation by magnetically controlled modulation of pure spin currents in cobalt/copper lateral spin valves, fabricated on top of the magnetic insulator Y$_3$Fe$_5$O$_{12}$ (YIG). The direction of the YIG magnetization can be controlled by a small magnetic field. We observe a clear modulation of the non-local resistance as a function of the orientation of the YIG magnetization with respect to the polarization of the spin current. Such a modulation can only be explained by assuming a finite spin-mixing conductance at the Cu/YIG interface, as it follows from the solution of the spin-diffusion equation. These results open a new path towards the development of spin logics.
description: 5 pages and 4 figures + supplemental material (10 pages, 7 figures)
New cosmological constraints on $f(T)$ gravity in light of full Planck-CMB and type Ia supernovae data
Creators: name: Kumar, Suresh
name: Nunes, Rafael C.
name: Yadav, Priya
Publisher: name: arXiv
Year: 2022
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We investigate two new observational perspectives in the context of torsional gravitational modification of general relativity, i.e., the $f(T)$ gravity: i) We use Pantheon data of type Ia supernovae motivated by a time variation of the Newton's constant on the supernovae distance modulus relation, and find that a joint analysis with Baryon Acoustic Oscillations (BAO) and Big Bang Nucleosynthesis (BBN), i.e., Pantheon+BAO+BBN, provides constraints on the effective free parameter of the theory to be well compatible with the $Λ$CDM prediction; ii) We present the framework of $f(T)$ gravity at the level of linear perturbations with the phenomenological functions, namely the effective gravitational coupling $μ$ and the light deflection parameter $Σ$, which are commonly used to parameterize possible modifications of the Poisson equation relating the matter density contrast to the lensing and the Newtonian potentials, respectively. We use the available Cosmic Microwave Background (CMB) data sets from the Planck 2018 release to constrain the free parameters of the $f(T)$ power-law gravity and $Λ$CDM models. We find that CMB data, and its joint analyses with Pantheon and BAO data constrain the $f(T)$ power-law gravity scenario to be practically indistinguishable from the $Λ$CDM model. We obtain the strongest limits ever reported on $f(T)$ power-law gravity scenario at the cosmological level.
description: 13 pages, 2 tables, 6 figures; New discussions added; Matches the version published in Physical Review D
GEOTECHNICAL INVESTIGATION ON ENGINEERING PROPERTIES OF SOIL FOUND IN GUDER TOWN
Creators: name: EYERUSALEM TADESSE ABEBE
Publisher: name: Zenodo
Year: 2021

description: A soils investigation is an essential part of the design and construction of a proposed building or infrastructure. Guder is a town in western Ethiopia, 123 km from Addis Abeba. The objective of this research is to investigate the engineering properties of the soils found in the Guder town for better design and construction of civil engineering projects in the town. To achieve its objective samples from different parts of the town were collected and laboratory tests were done on the collected samples. The result of Atterberg limits test results of soils found in Guder town is liquid limit ranging between 19.02 - 103.81%, plastic limit 0 -42.93 % and Plasticity index 2.35 – 64.52 %. The specific gravity test results are 2.33 – 3. The values are higher than the specific gravity of the temperate zone soils, which is about 2.65 -2.70. Grain size analysis test results that, the soil in Guder town is mostly silty and silty sand.
title: Polar Alignment of Massive Retrograde Circumbinary Discs
Creators: name: Abod, Charles
Publisher: name: University of Nevada, Las Vegas
Year: 2022

description: To understand the observed circumbinary planetary systems, we must first explain the dynamics of the circumbinary discs in which they formed. Observations of circumbinary discs show that misalignments to the binary orbital plane may be common. Here we investigate these systems by exploring the orbital dynamics of three-body systems and circumbinary discs. A test particle orbit around an eccentric binary has two stationary states in which there is no nodal precession: coplanar and polar. Nodal precession of a misaligned test particle orbit centres on one of these stationary states. A low mass circumbinary disc undergoes the same precession and moves towards one of these states through dissipation within the disc. For a massive particle orbit, the stationary polar alignment occurs at an inclination less than $90^{\circ}$, this is the prograde stationary inclination. A sufficiently high angular momentum particle has an additional higher inclination stationary state, the retrograde stationary inclination. Misaligned particle orbits close to the retrograde stationary inclination are not nested like the orbits close to the other stationary points. We investigate the evolution of a gas disc that begins close to the retrograde stationary inclination. With hydrodynamical disc simulations, we find that the disc moves through the unnested crescent shape precession orbits and eventually moves towards the prograde stationary inclination thus increasing the parameter space over which circumbinary discs move towards polar alignment. This has implications for the alignment of circumbinary planets.
Mayer-Vietoris squares in algebraic geometry
Creators: name: Hall, Jack
name: Rydh, David
Publisher: name: arXiv
Year: 2016
Subjects: subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics
subject: 14A20 (Primary), 13F40, 13J10, 14F05, 14F20 (Secondary)

description: We consider various notions of Mayer--Vietoris squares in algebraic geometry. We use these to generalize a number of gluing and pushout results of Moret-Bailly, Ferrand--Raynaud, Joyet and Bhatt. An important intermediate step is Gabber's rigidity theorem for henselian pairs, which our methods give a new proof of.
description: 26 pages; corrected statement and proof of Proposition 4.2 and overall minor improvements
Quantization of interface currents
Creators: name: Kotani, Motoko
name: Schulz-Baldes, Hermann
name: Villegas-Blas, Carlos
Publisher: name: arXiv
Year: 2014
Subjects: subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: At the interface of two two-dimensional quantum systems, there may exist interface currents similar to edge currents in quantum Hall systems. It is proved that these interface currents are macroscopically quantized by an integer that is given by the difference of the Chern numbers of the two systems. It is also argued that at the interface between two time-reversal invariant systems with half-integer spin, one of which is trivial and the other non-trivial, there are dissipationless spin-polarized interface currents.
description: final version, minor corrections, appears in J. Math. Phys
title: Ölfarbe auf Stein - Ästhetik oder Verwitterungsschutz
title: Beispiel Brandenburger Tor zu Berlin, Schwerpunkt Metopenfries
titleType: Subtitle
Creators: name: Hooß, Roland
Publisher: name: HAWK Hochschule für angewandte Wissenschaft und Kunst Hildesheim/Holzminden/Göttingen
Year: 1997
Subjects: Heritage conservation

description: Die Arbeit befasst sich überwiegend mit der Technologie des Ölfarbanstriches sowie der Leinöltränkung von Stein. In diesem Zusammenhang wurden verschiedene historische Rezepturen und Anwendungsbeispiele zu Ölbehandlungen und Kittmassen für Stein zusammengetragen und die Restaurierungsgeschichte des Brandenburger Tores hinsichtlich der historischen Öl-Anwendungen auf den Steinoberflächen ausgewertet. Die konservierende Wirkung von Ölfarbe auf Stein wird bezugnehmend auf die untersuchten Objekte bewertet.
Shear induced rigidity in athermal materials: a unified statistical framework
Creators: name: Sarkar, Sumantra
name: Chakraborty, Bulbul
Publisher: name: arXiv
Year: 2014
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: Recent studies of athermal systems such as dry grains and dense, non-Brownian suspensions have shown that shear can lead to solidification through the process of shear jamming in grains and discontinuous shear thickening in suspensions. The similarities observed between these two distinct phenomena suggest that the physical processes leading to shear-induced rigidity in athermal materials are universal. We present a non-equilibrium statistical mechanics model, which exhibits the phenomenology of these shear-driven transitions: shear jamming and discontinuous shear thickening in different regions of the predicted phase diagram. Our analysis identifies the crucial physical processes underlying shear-driven rigidity transitions, and clarifies the distinct roles played by shearing forces and the density of grains.
description: Comments welcome
Rotation and magnetism of Kepler pulsating solar-like stars. Towards asteroseismically calibrated age-rotation relations
Creators: name: Garcia, R. A.
name: Ceillier, T.
name: Salabert, D.
name: Mathur, S.
name: van Saders, J. L.
name: Pinsonneault, M.
name: Ballot, J.
name: Beck, P. G.
name: Bloemen, S.
name: Campante, T. L.
name: Davies, G. R.
name: Nascimento, J. -D. do
name: Mathis, S.
name: Metcalfe, T. S.
name: Nielsen, M. B.
name: Suarez, J. C.
name: Chaplin, W. J.
name: Jimenez, A.
name: Karoff, C.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Kepler ultra-high precision photometry of long and continuous observations provides a unique dataset in which surface rotation and variability can be studied for thousands of stars. Because many of these old field stars also have independently measured asteroseismic ages, measurements of rotation and activity are particularly interesting in the context of age-rotation-activity relations. In particular, age-rotation relations generally lack good calibrators at old ages, a problem that this Kepler sample of old-field stars is uniquely suited to address. We study the surface rotation and photometric magnetic activity of a subset of 540 solar-like stars on the main- sequence and the subgiant branch for which stellar pulsations have been measured. The rotation period was determined by comparing the results from two different analysis methods: i) the projection onto the frequency domain of the time-period analysis, and ii) the autocorrelation function (ACF) of the light curves. Reliable surface rotation rates were then extracted by comparing the results from two different sets of calibrated data and from the two complementary analyses. We report rotation periods for 310 out of 540 targets (excluding known binaries and candidate planet-host stars); our measurements span a range of 1 to 100 days. The photometric magnetic activity levels of these stars were computed, and for 61.5% of the dwarfs, this level is similar to the range, from minimum to maximum, of the solar magnetic activity. We demonstrate that hot dwarfs, cool dwarfs, and subgiants have very different rotation-age relationships, highlighting the importance of separating out distinct populations when interpreting stellar rotation periods. Our sample of cool dwarf stars with age and metallicity data of the highest quality is consistent with gyrochronology relations reported in the literature.
description: Accepted in A&A. 15 pages, 11 figures
Iterative method for simultaneous sparse approximation
Creators: name: Sadrizadeh, Sahar
name: Kiani, Shahrzad
name: Boloursaz, Mahdi
name: Marvasti, Farokh
Publisher: name: arXiv
Year: 2017
Subjects: subject: Information Theory (cs.IT)
subject: FOS: Computer and information sciences

description: This paper studies the problem of Simultaneous Sparse Approximation (SSA). This problem arises in many applications which work with multiple signals maintaining some degree of dependency such as radar and sensor networks. In this paper, we introduce a new method towards joint recovery of several independent sparse signals with the same support. We provide an analytical discussion on the convergence of our method called Simultaneous Iterative Method with Adaptive Thresholding (SIMAT). Additionally, we compare our method with other group-sparse reconstruction techniques, i.e., Simultaneous Orthogonal Matching Pursuit (SOMP), and Block Iterative Method with Adaptive Thresholding (BIMAT) through numerical experiments. The simulation results demonstrate that SIMAT outperforms these algorithms in terms of the metrics Signal to Noise Ratio (SNR) and Success Rate (SR). Moreover, SIMAT is considerably less complicated than BIMAT, which makes it feasible for practical applications such as implementation in MIMO radar systems.
title: Population status of Anubis baboonsand Grivetmonkeysandtheir conflictswith humans in Humbo Community Managed Forest: implications  for  primate  conservation,Wolaita, Southern Ethiopia
Creators: name: Tedilahun Tesfaye and Aberham Megaze
Publisher: name: Journal of Science and Inclusive Development, Wolaita Sodo University
Year: 2021

description: Approximately 60% of the non-human primate species have been threatened with extinction and many species have also persisted in small populations in forest fragments. The aim of this study was to estimate the population size of Anubis baboons and grivet monkeys and their conflicts with the local people around Humbo community managed forest. The study area was classified into two habitat types: dense forest and open forest. The total counting method was implemented to determine the number of the non-human primates in the area coverage of 29km2. Identification of sex and age categories was carried out based on body size, pelage, and external genitalia. A questionnaire was used to collect the data among the households about the human–primate conflicts. The estimated number of Anubis baboon was 424 individuals with a population density of 14.6/km2 and the estimated grivet monkeys were 256 individuals with a population density of 8.8/km2. The major types of Anubis baboon and grivet monkey conflicts in the area include crop raiding and livestock predation. The majority (59.01%) of the farmers faced crop raiding. More than half of the respondents replied that guarding was an effective measure to protect the crop damage by the primates. Although the estimated population size of the Anubis baboons and grivet monkeys was lower in the present study area as compared with the studies in other parts of Ethiopia, the frequencies of conflicts of the Anubis baboons and grivet monkeys were increased. Therefore, it is essential to increase the involvement of the local people for the implementation of effective conflict avoiding strategies and primate conservation.
In-Situ Stress Magnitude Data from the Greater Ruhr Region (Germany) Derived from Hydrofracturing Tests and Borehole Logs
Creators: name: Kruszewski, Michal
name: Klee, Gerd
name: Niederhuber, Thomas
name: Heidbach, Oliver
Publisher: name: Fraunhofer-Gesellschaft
Year: 2022
Subjects: subject: crustal stress, in situ stress, stress tensor, stress magnitudes, tectonic stress, crustal stress pattern, geophysics, tectonics, World Stress Map, Ruhr region, Germany
subject: DDC::500 Naturwissenschaften und Mathematik::550 Geowissenschaften, Geologie::550 Geowissenschaften
subject: DDC::500 Naturwissenschaften und Mathematik::530 Physik::531 Klassische Mechanik, Festkörpermechanik

description: This compilation presents in-situ stress magnitudes derived from hydrofracturing tests and borehole logs carried out in six, now abandoned, coal mines and two coal bed methane boreholes at depths between 600 and 1950 m within the greater Ruhr region in western Germany. All stress information was analysed and compiled in a standardized format and quality-ranked, using the established quality ranking schemes of the World Stress Map (WSM) project, for reliability and comparability. The compilation displays A-C quality of in-situ stress orientation data records. The database presented here is the world's largest public database of stress magnitudes from a single region and presents unique and high-quality stress input data for future reservoir and geomechanical numerical models and should aid the subsurface operations in the region. This dataset supplements the Stress Magnitude Database of Germany (https://doi.org/10.5880/wsm.2020.004) with additional 429 data records, doubling the amount of available stress data records for Germany from 568 to 997. More detailed information on the WSM quality ranking scheme, guidelines for the various stress indicators, and software for stress map generation and the stress pattern analysis is available at http://www.world-stress-map.org.
impact of scientific inquiry case studies on students’ experience in an introductory animal agriculture course
Creators: name: Ragland, Elizabeth Christine
Publisher: name: Purdue University Graduate School
Year: 2023
Subjects: Animal production not elsewhere classified

description: The attached thesis consists of a literature review of inquiry-based learning levels and two studies examining the impact of inquiry-based learning levels on student engagement, interest, and motivation in an animal science context.
Garadacimab: First Approval
Creators: name: Fung, Simon
Publisher: name: Adis Journals
Year: 2025
Subjects: Medicine

description: Funding The preparation of this review was not supported by any external funding.
Authorship and Conflict of interest During the peer review process the manufacturer of the agent under review was offered an opportunity to comment on the article. Changes resulting from any comments received were made by the authors on the basis of scientific completeness and accuracy. Simon Fung is a salaried employee of Adis International Ltd/Springer Nature, and declares no relevant conflicts of interest. All authors contributed to this article and are responsible for its content.
Ethics approval, Consent to participate, Consent to publish, Availability of data and material, Code availability Not applicable.
Additional information about this Adis Drug Review can be found here. 
Abstract
Garadacimab (Andembry®) is a fully human IgG4/lambda recombinant monoclonal anti-activated Factor XII antibody being developed by CSL Behring for the prevention of hereditary angioedema attacks. In January 2025, garadacimab received its first approval in Australia and the UK for prevention of hereditary angioedema attacks in adult and adolescent patients aged ≥ 12 years. Additionally, in February 2025, garadacimab was approved for the same indication in the EU, Japan and Switzerland. In the USA and Canada, regulatory review of garadacimab is currently underway. This article summarizes the milestones in the development of garadacimab leading to this first approval for prevention of recurrent hereditary angioedema attacks in adult and adolescent patients aged ≥ 12 years.  
© Springer Nature Switzerland AG 2025
An observable electron-positron anisotropy cannot be generated by dark matter
Creators: name: Profumo, Stefano
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: I demonstrate that if an anisotropy in the arrival direction of high-energy cosmic-ray electrons and positrons is observed then, barring local anisotropic diffusion, dark matter annihilation is ruled out as an explanation to the positron excess. For an observable anisotropy to originate from dark matter annihilation, the high-energy electrons and positrons must be produced in a nearby clump. I consider the annihilation pathway producing the smallest flux of gamma rays versus electrons and positrons, and the combination of clump distance and luminosity that minimizes the gamma-ray flux. I show that if an anisotropy from such a clump were detected, and if such anisotropy did not generate from anisotropic diffusion effects, then the clump would be clearly detectable as an anomalous, bright gamma-ray source with the Fermi Large Area Telescope. I also point out that the non-detection of an anisotropy is perfectly compatible with an astrophysical origin for the excess positrons that has nothing to do with dark matter.
description: 10 pages, version 2 matches published manuscript