cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Discrete Cosine Transforms on Quantum Computers
Creators: name: Klappenecker, Andreas
name: Roetteler, Martin
Publisher: name: arXiv
Year: 2001
Subjects: subject: Quantum Physics (quant-ph)
subject: Emerging Technologies (cs.ET)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: A classical computer does not allow to calculate a discrete cosine transform on N points in less than linear time. This trivial lower bound is no longer valid for a computer that takes advantage of quantum mechanical superposition, entanglement, and interference principles. In fact, we show that it is possible to realize the discrete cosine transforms and the discrete sine transforms of size NxN and types I,II,III, and IV with as little as O(log^2 N) operations on a quantum computer, whereas the known fast algorithms on a classical computer need O(N log N) operations.
description: 5 pages, LaTeX 2e, IEEE ISPA01, Pula, Croatia, 2001
On the Irresistible Efficiency of Signal Processing Methods in Quantum Computing
Creators: name: Klappenecker, Andreas
name: Roetteler, Martin
Publisher: name: arXiv
Year: 2001
Subjects: subject: Quantum Physics (quant-ph)
subject: Emerging Technologies (cs.ET)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: We show that many well-known signal transforms allow highly efficient realizations on a quantum computer. We explain some elementary quantum circuits and review the construction of the Quantum Fourier Transform. We derive quantum circuits for the Discrete Cosine and Sine Transforms, and for the Discrete Hartley transform. We show that at most O(log^2 N) elementary quantum gates are necessary to implement any of those transforms for input sequences of length N.
description: 15 pages, LaTeX 2e. Expanded version of quant-ph/0111038. SPECLOG 2000, Tampere, Finland
Ruth Bach-Damaskinos/Jürgen Schabel/Sabine Kothes, Schlösser und Burgen in Mittelfranken. Eine vollständige Darstellung aller Schlösser, Herrensitze, Burgen und Ruinen in den mittelfränkischen kreisfreien Städten und Landkreisen
Creators: name: Kolling, Hubert
Publisher: name: Burgen und Schlösser - Zeitschrift für Burgenforschung und Denkmalpflege
Year: 2020

description: Rezension zu: Ruth Bach-Damaskinos/Jürgen Schabel/Sabine Kothes, Schlösser und Burgen in Mittelfranken. Eine vollständige Darstellung aller Schlösser, Herrensitze, Burgen und Ruinen in den mittelfränkischen kreisfreien Städten und Landkreisen. Nürnberg: Hofmann Verlag 1993, 200 Seiten, Format 23 x 30 cm, gebunden mit Schutzumschlag, ISBN 3-87191-186-0.
description: Burgen und Schlösser - Zeitschrift für Burgenforschung und Denkmalpflege, Bd. 39 Nr. 1 (1998): Burgen und Schlösser - Zeitschrift für Burgenforschung und Denkmalpflege
Additional file 1 of Prevalence trends of depression and anxiety symptoms in adults with cardiovascular diseases and diabetes 1995–2019: The HUNT studies, Norway
Creators: name: Bojanić, Ivana
name: Sund, Erik R.
name: Sletvold, Hege
name: Bjerkeset, Ottar
Publisher: name: figshare
Year: 2021
Subjects: subject: Sociology
subject: FOS: Sociology
subject: Immunology
subject: FOS: Clinical medicine
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: 111714 Mental Health
subject: FOS: Health sciences

description: Additional file 1. Associations of CVDs with depression and anxiety symptoms in HUNT2 (1995–97), HUNT3 (2006–08) and HUNT4 (2017–19) at age 40, 60 and 80, multi-level logistic analysisa.
Inhaltsverzeichnis
Creators: name: Die Redaktion
Publisher: name: Burgen und Schlösser - Zeitschrift für Burgenforschung und Denkmalpflege
Year: 2020

description: -
description: Burgen und Schlösser - Zeitschrift für Burgenforschung und Denkmalpflege, Bd. 42 Nr. 1 (2001): Burgen und Schlösser - Zeitschrift für Burgenforschung und Denkmalpflege
Local and global behaviour of nonlinear equations with natural growth terms
Creators: name: Jaye, Benjamin J.
name: Verbitsky, Igor E.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Analysis of PDEs (math.AP)
subject: Classical Analysis and ODEs (math.CA)
subject: FOS: Mathematics
subject: 35J60, 42B37 (Primary) 31C45, 35J92, 42B25 (Secondary)

description: This paper concerns a study of the pointwise behaviour of positive solutions to certain quasi-linear elliptic equations with natural growth terms, under minimal regularity assumptions on the underlying coefficients. Our primary results consist of optimal pointwise estimates for positive solutions of such equations in terms of two local Wolff's potentials.
description: In memory of Professor Nigel Kalton
Additional file 2 of Prevalence trends of depression and anxiety symptoms in adults with cardiovascular diseases and diabetes 1995–2019: The HUNT studies, Norway
Creators: name: Bojanić, Ivana
name: Sund, Erik R.
name: Sletvold, Hege
name: Bjerkeset, Ottar
Publisher: name: figshare
Year: 2021
Subjects: subject: Sociology
subject: FOS: Sociology
subject: Immunology
subject: FOS: Clinical medicine
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: 111714 Mental Health
subject: FOS: Health sciences

description: Additional file 2. Associations of DM with depression and anxiety symptoms in HUNT2 (1995–97), HUNT3 (2006–08) and HUNT4 (2017–19) at age 40, 60 and 80, multi-level logistic analysisa.
Additional file 1 of Effects of sanitary pad distribution and reproductive health education on upper primary school attendance and reproductive health knowledge and attitudes in Kenya: a cluster randomized controlled trial
Creators: name: Austrian, Karen
name: Kangwana, Beth
name: Muthengi, Eunice
name: Soler-Hampejsek, Erica
Publisher: name: figshare
Year: 2021
Subjects: subject: Medicine
subject: Biotechnology
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Cancer
subject: Science Policy

description: Additional file 1: Table S1. Outcomes. Table S2. Differences in estimated effects of intention-to-treat across study arms among girls menstruating at baseline and interviewed at endline. Table S3. Nia project uptake among all girls interviewed at endline. Table S4. School attendance outcomes from school attendance tracking instrument among all girls interviewed at endline. Table S5. Baseline and post intervention outcomes from survey among all girls. Table S6. Differences in estimated effects of intention-to-treat across study arms among all girls.
Breaking Instance-Independent Symmetries In Exact Graph Coloring
Creators: name: Aloul, F. A.
name: Markov, I. L.
name: Ramani, A.
name: Sakallah, K. A.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Artificial Intelligence (cs.AI)
subject: FOS: Computer and information sciences

description: Code optimization and high level synthesis can be posed as constraint satisfaction and optimization problems, such as graph coloring used in register allocation. Graph coloring is also used to model more traditional CSPs relevant to AI, such as planning, time-tabling and scheduling. Provably optimal solutions may be desirable for commercial and defense applications. Additionally, for applications such as register allocation and code optimization, naturally-occurring instances of graph coloring are often small and can be solved optimally. A recent wave of improvements in algorithms for Boolean satisfiability (SAT) and 0-1 Integer Linear Programming (ILP) suggests generic problem-reduction methods, rather than problem-specific heuristics, because (1) heuristics may be upset by new constraints, (2) heuristics tend to ignore structure, and (3) many relevant problems are provably inapproximable. Problem reductions often lead to highly symmetric SAT instances, and symmetries are known to slow down SAT solvers. In this work, we compare several avenues for symmetry breaking, in particular when certain kinds of symmetry are present in all generated instances. Our focus on reducing CSPs to SAT allows us to leverage recent dramatic improvement in SAT solvers and automatically benefit from future progress. We can use a variety of black-box SAT solvers without modifying their source code because our symmetry-breaking techniques are static, i.e., we detect symmetries and add symmetry breaking predicates (SBPs) during pre-processing. An important result of our work is that among the types of instance-independent SBPs we studied and their combinations, the simplest and least complete constructions are the most effective. Our experiments also clearly indicate that instance-independent symmetries should mostly be processed together with instance-specific symmetries rather than at the specification level, contrary to what has been suggested in the literature.
Additional file 1 of Transmission patterns of rifampicin resistant Mycobacterium tuberculosis complex strains in Cameroon: a genomic epidemiological study
Creators: name: Merker, Matthias
name: Egbe, Nkongho F.
name: Ngangue, Yannick R.
name: Vuchas, Comfort
name: Kohl, Thomas A.
name: Dreyer, Viola
name: Kuaban, Christopher
name: Noeske, Jürgen
name: Niemann, Stefan
name: Sander, Melissa S.
Publisher: name: figshare
Year: 2021
Subjects: subject: Medicine
subject: Genetics
subject: FOS: Biological sciences
subject: Pharmacology
subject: Biotechnology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: Cancer
subject: 110309 Infectious Diseases
subject: FOS: Health sciences
subject: 60506 Virology

description: Additional file 1. Supplementary Methods.
Engineering Functional Quantum Algorithms
Creators: name: Klappenecker, Andreas
name: Roetteler, Martin
Publisher: name: arXiv
Year: 2002
Subjects: subject: Quantum Physics (quant-ph)
subject: Emerging Technologies (cs.ET)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: Suppose that a quantum circuit with K elementary gates is known for a unitary matrix U, and assume that U^m is a scalar matrix for some positive integer m. We show that a function of U can be realized on a quantum computer with at most O(mK+m^2log m) elementary gates. The functions of U are realized by a generic quantum circuit, which has a particularly simple structure. Among other results, we obtain efficient circuits for the fractional Fourier transform.
description: 4 pages, 2 figures
Effects of phosphorus-doping upon the electronic structures of single wall carbon nanotubes
Creators: name: Chen, AQing
name: Shao, QingYi
name: Lin, ZhiCheng
Publisher: name: arXiv
Year: 2011
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: The phosphorus-doped single wall carbon nanotube (PSWCNT) is studied by using First-Principle methods based on Density Function Theory (DFT). The formation energy, total energy, band structure, geometry structure and density of states are calculated. It is found that the formation energy of the P-doped single carbon nanotubes increases with diameters; the total energy of carbon nanotubes with the same diameter decreases as the doping rate increases. The effects of impurity position on the im-purity level are discussed. It illustrates that the position of the impurity level may depend on the C-P-C bond angle. According to the above results, it is feasible to substitute a carbon atom with a phosphorus atom in SWCNT. It is also found that P-doped carbon nanotubes are N type semiconductor.
description: 9 pages, 6 figures, 2 tables
Exploring initial correlations in a Gibbs state by local application of external field
Creators: name: Uchiyama, Chikako
Publisher: name: arXiv
Year: 2012
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We demonstrate that local application of a weak external field increases distinguishability between states with and without initial correlations. We consider the case where a two-level system linearly and adiabatically interacts with an infinite number of bosons. We evaluate the trace distance (or, equivalently, the Hilbert-Schmidt distance) between the quantum states which evolve from two kinds of initial states; the correlated Gibbs state and its uncorrelated marginal state. We find that the trace distance increases above its initial value for any and all parameter settings. This indicates that we can explore the existence of initial system-environment correlations with applying a local external field, which causes the breakdown of the contractivity.
description: 7 pages, 4 figures
Efficient Quantum Circuits for Non-Qubit Quantum Error-Correcting Codes
Creators: name: Grassl, Markus
name: Roetteler, Martin
name: Beth, Thomas
Publisher: name: arXiv
Year: 2002
Subjects: subject: Quantum Physics (quant-ph)
subject: Emerging Technologies (cs.ET)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: We present two methods for the construction of quantum circuits for quantum error-correcting codes (QECC). The underlying quantum systems are tensor products of subsystems (qudits) of equal dimension which is a prime power. For a QECC encoding k qudits into n qudits, the resulting quantum circuit has O(n(n-k)) gates. The running time of the classical algorithm to compute the quantum circuit is O(n(n-k)^2).
description: 18 pages, submitted to special issue of IJFCS
On the Monomiality of Nice Error Bases
Creators: name: Klappenecker, Andreas
name: Roetteler, Martin
Publisher: name: arXiv
Year: 2003
Subjects: subject: Quantum Physics (quant-ph)
subject: Emerging Technologies (cs.ET)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: Unitary error bases generalize the Pauli matrices to higher dimensional systems. Two basic constructions of unitary error bases are known: An algebraic construction by Knill, which yields nice error bases, and a combinatorial construction by Werner, which yields shift-and-multiply bases. An open problem posed by Schlingemann and Werner (see http://www.imaph.tu-bs.de/qi/problems/6.html) relates these two constructions and asks whether each nice error basis is equivalent to a shift-and-multiply basis. We solve this problem and show that the answer is negative. However, we also show that it is always possible to find a fairly sparse representation of a nice error basis.
description: 6 pages
Absolute accuracy in membrane-based ac nanocalorimetry
Creators: name: Tagliati, S.
name: Rydh, A.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: To achieve accurate results in nanocalorimetry a detailed analysis and understanding of the behavior of the calorimetric system is required. There are especially two system-related aspects that should be taken in consideration: the properties of the empty cell and the effect of the thermal link between sample and cell. Here we study these two aspects for a membrane-based system where heater and thermometer are both in good contact with each other and the center of the membrane. Practical, analytical expressions for describing the frequency dependence of heat capacity, thermal conductance, and temperature oscillation of the system are formulated and compared with measurements and numerical simulations. We finally discuss the experimental conditions for an optimal working frequency, where high resolution and good absolute accuracy are combined.
Dynamical Dark Energy and Spontaneously Generated Gravity
Creators: name: Kamenshchik, Alexander Y.
name: Tronconi, Alessandro
name: Venturi, Giovanni
Publisher: name: arXiv
Year: 2012
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We study the cosmological evolution of an induced gravity model with a scale symmetry breaking potential for the scalar field. The radiation to matter transition, following inflation and reheating, influences the dynamics of such a field through its non minimal coupling. We illustrate how, under certain conditions on the potential, such a dynamics can lead to a suitable amount of dark energy explaining the present accelerated expansion.
description: 14 pages, 3 figures
Comment on "Probabilistic Quantum Memories"
Creators: name: Brun, T.
name: Klauck, H.
name: Nayak, A.
name: Roetteler, M.
name: Zalka, Ch.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Quantum Physics (quant-ph)
subject: Emerging Technologies (cs.ET)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: This is a comment on two wrong Phys. Rev. Letters papers by C.A. Trugenberger. Trugenberger claimed that quantum registers could be used as exponentially large "associative" memories. We show that his scheme is no better than one where the quantum register is replaced with a classical one of equal size. We also point out that the Holevo bound and more recent bounds on "quantum random access codes" pretty much rule out powerful memories (for classical information) based on quantum states.
description: REVTeX4, 1 page, published version
Constructions of Mutually Unbiased Bases
Creators: name: Klappenecker, Andreas
name: Roetteler, Martin
Publisher: name: arXiv
Year: 2003
Subjects: subject: Quantum Physics (quant-ph)
subject: Emerging Technologies (cs.ET)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: Two orthonormal bases B and B' of a d-dimensional complex inner-product space are called mutually unbiased if and only if ||^2=1/d holds for all b in B and b' in B'. The size of any set containing (pairwise) mutually unbiased bases of C^d cannot exceed d+1. If d is a power of a prime, then extremal sets containing d+1 mutually unbiased bases are known to exist. We give a simplified proof of this fact based on the estimation of exponential sums. We discuss conjectures and open problems concerning the maximal number of mutually unbiased bases for arbitrary dimensions.
description: 8 pages latex
Quantum Software Reusability
Creators: name: Klappenecker, Andreas
name: Roetteler, Martin
Publisher: name: arXiv
Year: 2003
Subjects: subject: Quantum Physics (quant-ph)
subject: Emerging Technologies (cs.ET)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: The design of efficient quantum circuits is an important issue in quantum computing. It is in general a formidable task to find a highly optimized quantum circuit for a given unitary matrix. We propose a quantum circuit design method that has the following unique feature: It allows to construct efficient quantum circuits in a systematic way by reusing and combining a set of highly optimized quantum circuits. Specifically, the method realizes a quantum circuit for a given unitary matrix by implementing a linear combination of representing matrices of a group, which have known fast quantum circuits. We motivate and illustrate this method by deriving extremely efficient quantum circuits for the discrete Hartley transform and for the fractional Fourier transforms. The sound mathematical basis of this design method allows to give meaningful and natural interpretations of the resulting circuits. We demonstrate this aspect by giving a natural interpretation of known teleportation circuits.
description: 20 pages latex, 11 postscript figures
On optimal quantum codes
Creators: name: Grassl, Markus
name: Beth, Thomas
name: Roetteler, Martin
Publisher: name: arXiv
Year: 2003
Subjects: subject: Quantum Physics (quant-ph)
subject: Emerging Technologies (cs.ET)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: We present families of quantum error-correcting codes which are optimal in the sense that the minimum distance is maximal. These maximum distance separable (MDS) codes are defined over q-dimensional quantum systems, where q is an arbitrary prime power. It is shown that codes with parameters [[n,n-2d+2,d]]_q exist for all 3 <= n <= q and 1 <= d <= n/2+1. We also present quantum MDS codes with parameters [[q^2,q^2-2d+2,d]]_q for 1 <= d <= q which additionally give rise to shortened codes [[q^2-s,q^2-2d+2-s,d]]_q for some s.
description: Accepted for publication in the International Journal of Quantum Information
Scada data validation: application of the unified hydraulic solver in water distribution systems
Creators: name: Adaramola, Olufemi Olawale
Publisher: name: University of Calgary
Year: 2004

description: Bibliography: p. 193-196
description: A new technique has been developed that enables utilities to validate SCADA data and demand loads from water distribution systems using the Unified Hydraulic Solver (UHS). The developed technique assumes that water distribution network pipe roughness coefficients are accurately calibrated. The technique therefore focuses on the ability to validate data either in real time (flows and pressures) or data normally assumed known in real time (nodal demands) within the model formulation. The developed data validation technique systematically investigates the quality of individual measurements and network data by quantifying the consistencies of each observed parameter against all other observations using the unified hydraulic solver. The developed technique is suitable for the analysis of flow and head errors, and errors involving single demand error. The developed data validation mechanism is modified, based on the flexibility of the UHS to designate networks into over- and under-determined zones, to analyze errors involving multiple demand errors. The technique is verified by comparing the results obtained with the state estimation output of the same problem. The accuracy of the outputs using the developed mechanism is further ascertained based on the comparison with the actual error in the system. The limitations of the mechanisms and possible future developments are discussed.
Additional file 4 of Transmission patterns of rifampicin resistant Mycobacterium tuberculosis complex strains in Cameroon: a genomic epidemiological study
Creators: name: Merker, Matthias
name: Egbe, Nkongho F.
name: Ngangue, Yannick R.
name: Vuchas, Comfort
name: Kohl, Thomas A.
name: Dreyer, Viola
name: Kuaban, Christopher
name: Noeske, Jürgen
name: Niemann, Stefan
name: Sander, Melissa S.
Publisher: name: figshare
Year: 2021
Subjects: subject: Medicine
subject: Genetics
subject: FOS: Biological sciences
subject: Pharmacology
subject: Biotechnology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: Cancer
subject: 110309 Infectious Diseases
subject: FOS: Health sciences
subject: 60506 Virology

description: Additional file 4: Table S3. Comparison of patient characteristics, included versus excluded RR/MDR-TB patients.
Remarks on Clifford codes
Creators: name: Klappenecker, Andreas
name: Roetteler, Martin
Publisher: name: arXiv
Year: 2003
Subjects: subject: Quantum Physics (quant-ph)
subject: Emerging Technologies (cs.ET)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: Clifford codes are a class of quantum error control codes that form a natural generalization of stabilizer codes. These codes were introduced in 1996 by Knill, but only a single Clifford code was known, which is not already a stabilizer code. We derive a necessary and sufficient condition that allows to decide when a Clifford code is a stabilizer code, and compile a table of all true Clifford codes for error groups of small order.
description: 10 pages; submitted to Quantum Information and Computation
Implementation of group-covariant POVMs by orthogonal measurements
Creators: name: Decker, Thomas
name: Janzing, Dominik
name: Roetteler, Martin
Publisher: name: arXiv
Year: 2004
Subjects: subject: Quantum Physics (quant-ph)
subject: Emerging Technologies (cs.ET)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: We consider group-covariant positive operator valued measures (POVMs) on a finite dimensional quantum system. Following Neumark's theorem a POVM can be implemented by an orthogonal measurement on a larger system. Accordingly, our goal is to find an implementation of a given group-covariant POVM by a quantum circuit using its symmetry. Based on representation theory of the symmetry group we develop a general approach for the implementation of group-covariant POVMs which consist of rank-one operators. The construction relies on a method to decompose matrices that intertwine two representations of a finite group. We give several examples for which the resulting quantum circuits are efficient. In particular, we obtain efficient quantum circuits for a class of POVMs generated by Weyl-Heisenberg groups. These circuits allow to implement an approximative simultaneous measurement of the position and crystal momentum of a particle moving on a cyclic chain.
description: latex, 25 pages, 3 figures
Spectroscopy of PTCDA attached to rare gas samples: clusters vs. bulk matrices. II. Fluorescence emission spectroscopy
Creators: name: Dvorak, M.
name: Müller, M.
name: Knoblauch, T.
name: Bünermann, O.
name: Rydlo, A.
name: Minniberger, S.
name: Harbich, W.
name: Stienkemeier, F.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Atomic and Molecular Clusters (physics.atm-clus)
subject: FOS: Physical sciences

description: The interaction between PTCDA (3,4,9,10-perylene-tetracarboxylic-dianhydride) molecules and solid rare gas samples is studied by means of fluorescence emission spectroscopy. On the one hand, laser-excited PTCDA-doped large argon, neon and para-hydrogen clusters in comparison with PTCDA embedded in helium nanodroplets are spectroscopically characterized with respect to line broadening and shifting. A fast non-radiative relaxation is observed before a radiative decay in the electronic ground state takes place. On the other hand, fluorescence emission studies of PTCDA embedded in bulk neon and argon matrices results in much more complex spectral signatures characterized by a splitting of the different emission lines. These can be assigned to the appearance of site isomers of the surrounding matrix lattice structure.
Additional file 1 of Development and validation of a structured survey questionnaire on knowledge, attitude, preventive practice, and treatment-seeking behaviour regarding dengue among the resident population of Sabah, Malaysia: an exploratory factor analysis
Creators: name: Guad, Rhanye Mac
name: Mangantig, Ernest
name: Low, Wah Yun
name: Taylor-Robinson, Andrew W.
name: Azzani, Meram
name: Sekaran, Shamala Devi
name: Sim, Maw Shin
name: Azizan, Nornazirah
Publisher: name: figshare
Year: 2021
Subjects: subject: Medicine
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: Ecology
subject: FOS: Biological sciences
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: Science Policy

description: Additional file 1. Questionnaire use to assess knowledge, attitude, preventive practice, and treatment seeking behaviour on dengue among residents of Sabah population.
Remarks on the "non-canonicity puzzle": Lagrangian symmetries of the Einstein-Hilbert action
Creators: name: Kiriushcheva, N.
name: Komorowski, P. G.
name: Kuzmin, S. V.
Publisher: name: arXiv
Year: 2011
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Given the non-canonical relationship between variables used in the Hamiltonian formulations of the Einstein-Hilbert action (due to Pirani, Schild, Skinner (PSS) and Dirac) and the Arnowitt-Deser-Misner (ADM) action, and the consequent difference in the gauge transformations generated by the first-class constraints of these two formulations, the assumption that the Lagrangians from which they were derived are equivalent leads to an apparent contradiction that has been called "the non-canonicity puzzle". In this work we shall investigate the group properties of two symmetries derived for the Einstein-Hilbert action: diffeomorphism, which follows from the PSS and Dirac formulations, and the one that arises from the ADM formulation. We demonstrate that unlike the diffeomorphism transformations, the ADM transformations (as well as others, which can be constructed for the Einstein-Hilbert Lagrangian using Noether's identities) do not form a group. This makes diffeomorphism transformations unique (the term "canonical" symmetry might be suggested). If the two Lagrangians are to be called equivalent, canonical symmetry must be preserved. The interplay between general covariance and the canonicity of the variables used is discussed.
description: 23 pages
Additional file 12 of H2A ubiquitination is essential for Polycomb Repressive Complex 1-mediated gene regulation in Marchantia polymorpha
Creators: name: Liu, Shujing
name: Trejo-Arellano, Minerva S.
name: Qiu, Yichun
name: Eklund, D. Magnus
name: Köhler, Claudia
name: Hennig, Lars
Publisher: name: figshare
Year: 2021
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file 12. Review history.
title: Fremdsprachenlernen in/und Europa – Eine europäisch-fremdsprachendidaktische Kritik an Philippe Van Parijs’ Linguistic Justice
Creators: name: Inal, Benjamin
Publisher: name: Universitäts- und Landesbibliothek Darmstadt
Year: 2023

description: In diesem Beitrag werden die Hauptthesen des Buches Linguistic Justice von Philippe Van Parijs einerseits hinsichtlich einer europäischen Identität und andererseits in Hinblick auf das Fremdsprachenlernen in Europa diskutiert. Es wird argumentiert, dass die Forderung nach einer dominanten Durchsetzung des Englischen als lingua franca nicht mit dem Erhalt und der Pflege der sprachlich-kulturellen Vielfalt in Einklang gebracht werden kann. Dahingegen wird gerade das Fremdsprachenlernen über das Englische hinaus als originär europäisches Identifikationsmoment bestimmt.
Additional file 1 of H2A ubiquitination is essential for Polycomb Repressive Complex 1-mediated gene regulation in Marchantia polymorpha
Creators: name: Liu, Shujing
name: Trejo-Arellano, Minerva S.
name: Qiu, Yichun
name: Eklund, D. Magnus
name: Köhler, Claudia
name: Hennig, Lars
Publisher: name: figshare
Year: 2021
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file 1: Figure S1. Strategy of generating H2Aub depleted lines. Figure S2. Comparison of H3K27me3 data of this study with previously published data. Figure S3. H2Aub is essential for H3K27me3 incorporation. Figure S4. Distribution of H2Aub and H3K27me3 peaks among functional features of the Marchantia genome. Figure S5. H3K27me3 targeting is generally affected on genes in H2Aub deficient lines. Figure S6. H2Aub is required for gene repression and activation. Figure S7. Characterization of strong double mutant allele combinations in MpBMI1/1L. Figure S8. Characterization of weak double mutant allele combinations in MpBMI1/1L. Figure S9. Deposition of H2Aub is affected on upregulated and downregulated genes by loss of MpBMI1/1L. Figure S10. PRC1-mediated gene repression and activation depends on H2Aub. Figure S11. H2Aub contributes to PRC1-mediated transposable element activation. Figure S12. H2Aub and H3K27me3 deposition are affected by loss of MpBMI1/1L. Figure S13. Western blots of H2A and H2Aub. Figure S14. Scatter plots comparing RNA-seq triplicates. Figure S15. Scatter plots comparing ChIP-seq replicates.
Graphene radio: Detecting radiowaves with a single atom sheet
Creators: name: Dragoman, Mircea
name: Neculoiu, Dan
name: Cismaru, Alina
name: Deligeorgis, George
name: Konstantinidis, George
name: Dragoman, Daniela
Publisher: name: arXiv
Year: 2012
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We present the experimental evidence of RF demodulation by a graphene monolayer embedded in a coplanar structure. The demodulator was tested in the frequency range from 100 MHz to 25 GHz using amplitude modulated input signals. An input power of 0 dBm (1 mW) was used which is the typical power emitted for short range wireless communication systems, such as Bluetooth. The graphene demodulator exhibits good signal response in the frequency range associated to industrial, scientific and medical (ISM) radio band (2.4 GHz).
Automated Landmark-Based Cat Facial Analysis and its Applications
Creators: name: Mills, Daniel
name: Martvel, George
name: finka, lauren
Publisher: name: figshare
Year: 2024
Subjects: classificationCode: 300999
subject: Veterinary sciences not elsewhere classified

description: Facial landmarks, widely studied in human affective computing, are beginning to gain interest in the animal domain. Specifically, landmark-based geometric morphometric methods have been used to objectively assess facial expressions in cats, focusing on pain recognition and the impact of breed-specific morphology on facial signaling. These methods employed a 48-landmark scheme grounded in cat facial anatomy. Manually annotating these landmarks, however, is a labour intensive process, deeming it impractical for generating sufficiently large amounts of data for machine learning purposes as well as use in applied real time contexts with cats. Our previous work introduced an AI pipeline for automated landmark detection, which showed good performance in standard machine learning metrics. Nonetheless, the effectiveness of fully automated, end-to-end landmark-based systems for practical cat facial analysis tasks remained underexplored. This paper presents a thorough evaluation of such systems for three benchmark tasks related to cat facial analysis: recognition of breed, cephalic type, and pain.
Efficient Decoupling Schemes Based on Hamilton Cycles
Creators: name: Roetteler, Martin
Publisher: name: arXiv
Year: 2004
Subjects: subject: Quantum Physics (quant-ph)
subject: Emerging Technologies (cs.ET)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: Decoupling the interactions in a spin network governed by a pair-interaction Hamiltonian is a well-studied problem. Combinatorial schemes for decoupling and for manipulating the couplings of Hamiltonians have been developed which use selective pulses. In this paper we consider an additional requirement on these pulse sequences: as few {\em different} control operations as possible should be used. This requirement is motivated by the fact that optimizing each individual selective pulse will be expensive, i. e., it is desirable to use as few different selective pulses as possible. For an arbitrary $d$-dimensional system we show that the ability to implement only two control operations is sufficient to turn off the time evolution. In case of a bipartite system with local control we show that four different control operations are sufficient. Turning to networks consisting of several $d$-dimensional nodes which are governed by a pair-interaction Hamiltonian, we show that decoupling can be achieved if one is able to control a number of different control operations which is logarithmic in the number of nodes.
description: 4 pages, 1 figure, uses revtex 4
Multichannel Poisson denoising and deconvolution on the sphere : Application to the Fermi Gamma Ray Space Telescope
Creators: name: Schmitt, Jérémy
name: Starck, Jean-Luc
name: Casandjian, Jean-Marc
name: Fadili, Jalal
name: Grenier, Isabelle
Publisher: name: arXiv
Year: 2012
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: A multiscale representation-based denoising method for spherical data contaminated with Poisson noise, the multiscale variance stabilizing transform on the sphere (MS-VSTS), has been previously proposed. This paper first extends this MS-VSTS to spherical two and one dimensions data (2D-1D), where the two first dimensions are longitude and latitude, and the third dimension is a meaningful physical index such as energy or time. We then introduce a novel multichannel deconvolution built upon the 2D-1D MS-VSTS, which allows us to get rid of both the noise and the blur introduced by the point spread function (PSF) in each energy (or time) band. The method is applied to simulated data from the Large Area Telescope (LAT), the main instrument of the Fermi Gamma-Ray Space Telescope, which detects high energy gamma-rays in a very wide energy range (from 20 MeV to more than 300 GeV), and whose PSF is strongly energy-dependent (from about 3.5° at 100 MeV to less than 0.1° at 10 GeV).
description: 17 pages, 10 figures
Equivalence of Decoupling Schemes and Orthogonal Arrays
Creators: name: Roetteler, Martin
name: Wocjan, Pawel
Publisher: name: arXiv
Year: 2004
Subjects: subject: Quantum Physics (quant-ph)
subject: Emerging Technologies (cs.ET)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: We consider the problem of switching off unwanted interactions in a given multi-partite Hamiltonian. This is known to be an important primitive in quantum information processing and several schemes have been presented in the literature to achieve this task. A method to construct decoupling schemes for quantum systems of pairwise interacting qubits was introduced by M. Stollsteimer and G. Mahler and is based on orthogonal arrays. Another approach based on triples of Hadamard matrices that are closed under pointwise multiplication was proposed by D. Leung. In this paper, we show that both methods lead to the same class of decoupling schemes. Moreover, we establish a characterization of orthogonal arrays by showing that they are equivalent to decoupling schemes which allow a refinement into equidistant time-slots. Furthermore, we show that decoupling schemes for networks of higher-dimensional quantum systems with t-local Hamiltonians can be constructed from classical error-correcting codes.
description: 26 pages, latex, 1 figure in text
Mutually Unbiased Bases are Complex Projective 2-Designs
Creators: name: Klappenecker, Andreas
name: Roetteler, Martin
Publisher: name: arXiv
Year: 2005
Subjects: subject: Quantum Physics (quant-ph)
subject: Emerging Technologies (cs.ET)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: Mutually unbiased bases (MUBs) are a primitive used in quantum information processing to capture the principle of complementarity. While constructions of maximal sets of d+1 such bases are known for systems of prime power dimension d, it is unknown whether this bound can be achieved for any non-prime power dimension. In this paper we demonstrate that maximal sets of MUBs come with a rich combinatorial structure by showing that they actually are the same objects as the complex projective 2-designs with angle set {0,1/d}. We also give a new and simple proof that symmetric informationally complete POVMs are complex projective 2-designs with angle set {1/(d+1)}.
description: 5 pages; minor corrections, two remarks on previous work added, submitted to 2005 IEEE International Symposium on Information Theory
Thresholds for Linear Optics Quantum Computing with Photon Loss at the Detectors
Creators: name: Silva, Marcus
name: Roetteler, Martin
name: Zalka, Christof
Publisher: name: arXiv
Year: 2005
Subjects: subject: Quantum Physics (quant-ph)
subject: Emerging Technologies (cs.ET)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: We calculate the error threshold for the linear optics quantum computing proposal by Knill, Laflamme and Milburn [Nature 409, pp. 46--52 (2001)] under an error model where photon detectors have efficiency <100% but all other components -- such as single photon sources, beam splitters and phase shifters -- are perfect and introduce no errors. We make use of the fact that the error model induced by the lossy hardware is that of an erasure channel, i.e., the error locations are always known. Using a method based on a Markov chain description of the error correction procedure, our calculations show that, with the 7 qubit CSS quantum code, the gate error threshold for fault tolerant quantum computation is bounded below by a value between 1.78% and 11.5% depending on the construction of the entangling gates.
description: 7 pages, 6 figures
title: Prozesse der Professionalisierung durch die Umsetzung des Sprachenkonzepts an der Europäischen Technischen Universität Darmstadt. Wie das Modell der funktionalen Mehrsprachigkeit umgesetzt werden kann
Creators: name: Bradlaw, Constanze
name: Hufeisen, Britta
name: Nölle-Becker, Stefanie
Publisher: name: Universitäts- und Landesbibliothek Darmstadt
Year: 2023

description: Das neu entwickelte Sprachenkonzept im Rahmen der Internationalisierungsstrategie der TU Darmstadt beinhaltet neben seiner sprachwissenschaftlichen Verankerung einen Katalog von aktuell über 30 Einzelmaßnahmen. Sie stellen Vorschläge dar, die die abstrakten Ideen des Autorinnenteams zur Einführung von funktionaler Mehrsprachigkeit an ihrer Universität in die konkrete Umsetzung überführen. Da die Ausgangslagen und die Bedarfe für die verschiedenen Statusgruppen divers sind, wurde hier eine exemplarische Auswahl von Maßnahmen nach Zielgruppen sortiert. Dadurch wird aus unserer Sicht auch am ehesten deutlich, was wir unter Prozessen der Professionalisierung verstehen, die weit über den Gebrauch des Englischen in internationalen Kontexten deutscher Universitäten hinausweisen.
Variational procedure for nuclear shell-model calculations and energy-variance extrapolation
Creators: name: Shimizu, Noritaka
name: Utsuno, Yutaka
name: Mizusaki, Takahiro
name: Honma, Michio
name: Tsunoda, Yusuke
name: Otsuka, Takaharu
Publisher: name: arXiv
Year: 2012
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We discuss a variational calculation for nuclear shell-model calculations and propose a new procedure for the energy-variance extrapolation (EVE) method using a sequence of the approximated wave functions obtained by the variational calculation. The wave functions are described as linear combinations of the parity, angular-momentum projected Slater determinants, the energy of which is minimized by the conjugate gradient method obeying the variational principle. The EVE generally works well using the wave functions, but we found some difficult cases where the EVE gives a poor estimation. We discuss the origin of the poor estimation concerning shape coexistence. We found that the appropriate reordering of the Slater determinants allows us to overcome this difficulty and to reduce the uncertainty of the extrapolation.
description: 6 pages, 5 figures, submitted to Physical Review C
The intersecting social worlds of MRI scientists and MS clinicians
Creators: name: Bickford, Julia
Publisher: name: University of Calgary
Year: 2004

description: Bibliography: p. 160-172
description: Do basic scientists and clinicians represent two separate sub-cultures? In other words, if culture is defined from a cognitive perspective, do basic scientists and clinicians espouse similar beliefs and understandings about the objects and events in the world around them? What are the differences and similarities between scientists and clinicians? How do they relate to common objects? This research is a case study of basic scientists and clinicians working in the areas of Magnetic Resonance Imaging (MRI) and Multiple Sclerosis (MS) in a Western Canadian university hospital. Based on five months of qualitative and quantitative fieldwork, this study indicates that there are differences in how basic scientists and clinicians perceive five shared boundary objects: the MRI, the neurological patient, the CNS disease, neurological diagnosis, and the brain. This research also describes the social life of MRI as it passes through sub-cultures within a hospital organization.
Correlations between Nebular Emission and the Continuum Spectral Shape in SDSS Galaxies
Creators: name: Győry, Zsuzsanna
name: Szalay, Alexander S.
name: Budavári, Tamás
name: Csabai, István
name: Charlot, Stéphane
Publisher: name: arXiv
Year: 2011
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We present a statistical study of the correlations and dimensionality of emission lines carried out on a sample of over 40,000 Sloan Digital Sky Survey (SDSS) galaxies. Using principal component analysis, we found that the equivalent widths of the 11 strongest lines can be well represented using three parameters. We also explore correlations of the emission pattern with the eigenspace representation of the continuum spectrum. The observed relations are used to provide an empirical prescription for expectation values and variances of emission-line strengths as a function of spectral shape. We show that this estimation of emission lines has a sufficient accuracy to make it suitable for photometric applications. The method has already proved useful in SDSS photometric redshift estimation.
description: 38 pages, 20 figures
On the Power of Random Bases in Fourier Sampling: Hidden Subgroup Problem in the Heisenberg Group
Creators: name: Radhakrishnan, Jaikumar
name: Roetteler, Martin
name: Sen, Pranab
Publisher: name: arXiv
Year: 2005
Subjects: subject: Quantum Physics (quant-ph)
subject: Emerging Technologies (cs.ET)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: The hidden subgroup problem (HSP) provides a unified framework to study problems of group-theoretical nature in quantum computing such as order finding and the discrete logarithm problem. While it is known that Fourier sampling provides an efficient solution in the abelian case, not much is known for general non-abelian groups. Recently, some authors raised the question as to whether post-processing the Fourier spectrum by measuring in a random orthonormal basis helps for solving the HSP. Several negative results on the shortcomings of this random strong method are known. In this paper however, we show that the random strong method can be quite powerful under certain conditions on the group G. We define a parameter r(G) for a group G and show that O((\log |G| / r(G))^2) iterations of the random strong method give enough classical information to identify a hidden subgroup in G. We illustrate the power of the random strong method via a concrete example of the HSP over finite Heisenberg groups. We show that r(G) = Ω(1) for these groups; hence the HSP can be solved using polynomially many random strong Fourier samplings followed by a possibly exponential classical post-processing without further queries. The quantum part of our algorithm consists of a polynomial computation followed by measuring in a random orthonormal basis. This gives the first example of a group where random representation bases do help in solving the HSP and for which no explicit representation bases are known that solve the problem with (\log G)^O(1) Fourier samplings. As an interesting by-product of our work, we get an algorithm for solving the state identification problem for a set of nearly orthogonal pure quantum states.
description: 22 pages, LaTeX
Exponentials of Normal Operators and Commutativity of Operators: A New Approach
Creators: name: Mortad, Mohammed Hichem
Publisher: name: arXiv
Year: 2012
Subjects: subject: Functional Analysis (math.FA)
subject: Operator Algebras (math.OA)
subject: FOS: Mathematics
subject: Primary 47A10, 47A60

description: We present a new approach to the question of when the commutativity of operator exponentials implies that of the operators. This is proved in the setting of bounded normal operators on a complex Hilbert space. The proofs are based on some similarities results by Berberian and Embry as well as the celebrated Fuglede theorem.
description: 05 pages