cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Strong-coupling approach to temperature dependence of competing orders of superconductivity: Possible time-reversal symmetry breaking and nontrivial topology
Creators: name: Sun, Chi
name: Mæland, Kristian
name: Thingstad, Even
name: Sudbø, Asle
Publisher: name: arXiv
Year: 2024
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We use strong-coupling Eliashberg theory to study the competition of separate superconducting orders at low temperatures. Specifically, we study magnon-mediated superconductivity in a trilayer heterostructure with a thin normal metal between two antiferromagnetic insulators. Spin-triplet $p$-wave, spin-triplet $f$-wave, and spin-singlet $d$-wave superconducting gaps have been predicted to occur close to the critical temperature for the superconducting instability. The gap symmetry with the largest critical temperature depends on parameters in the model. We confirm that the same gap symmetries appear at any temperature below the critical temperature. Furthermore, we show that the temperature can affect the competition between the different superconducting orders. In addition, we consider time-reversal-symmetry-breaking, complex linear combinations of candidate pairings, such as chiral $p$-, $f$-, and $d$-wave gaps, as well as $p_x+if_y$-wave gaps. We find indications that some of these time-reversal-symmetry-breaking, nodeless gaps offer a greater condensation energy than the time-reversal symmetric gaps. This indicates that superconducting states with spontaneously broken time-reversal symmetry and nontrivial topology may be preferred in this system.
description: 12 pages, 7 figures, accepted in Physical Review B
title: Tragopogon pratensis ssp. orientalis
title: Östlicher Wiesen-Bocksbart (Tragopogon pratensis ssp. orientalis)
titleType: AlternativeTitle
Creators: name: Schulz, Herbert
Publisher: name: Universitätsbibliothek Braunschweig
Year: 2006
Subjects: subject: Orientalischer Bocksbart
subject: Diasammlung Herbert Schulz
subject: 580

description: Enthält 3 Bilder des Östlichen Wiesen-Bocksbartes.
title: Tragopogon pratensis ssp. minor
title: Kleiner Wiesen-Bocksbart (Tragopogon pratensis ssp. minor)
titleType: AlternativeTitle
Creators: name: Schulz, Herbert
Publisher: name: Universitätsbibliothek Braunschweig
Year: 2006
Subjects: subject: Diasammlung Herbert Schulz
subject: 580

description: Enthält 7 Bilder des Kleinen Wiesen-Bocksbartes.
Ubiquity of geometric finiteness in mapping class groups of Haken 3-manifolds
Creators: name: Hong, Sungbok
name: McCullough, Darryl
Publisher: name: arXiv
Year: 1997
Subjects: subject: Geometric Topology (math.GT)
subject: FOS: Mathematics
subject: 57M99

description: Mapping class groups of Haken 3-manifolds enjoy many of the homological finiteness properties of mapping class groups of 2-manifolds of finite type. For example, H(M) has a torsionfree subgroup of finite index, which is geometrically finite (i. e. is the fundamental group of a finite aspherical complex). This was proven by J. Harer for 2-manifolds and by the second author for Haken 3-manifolds. In this paper we prove that H(M) acts properly discontinuously on a contractible simplicial complex, with compact quotient. This implies that every torsionfree subgroup of finite index in H(M) is geometrically finite. Also, a simplified proof of the fact that torsionfree subgroups of finite index in H(M) exist is given. All results are proven for mapping class groups that preserve a boundary pattern in the sense of K. Johannson. As an application, we show that if F is a nonempty compact 2-manifold in the boundary of M, then the classifying space BDiff(M rel F) of the diffeomorphism group of M relative to F has the homotopy type of a finite aspherical complex.
description: 33 pages
title: Chemical Investigations of Australian Marine Sponges Using Experimental and Theoretical NMR Spectroscopy
Creators: name: Khokhar, Shahan
Publisher: name: Griffith University
Year: 2015
Subjects: subject: Marine sponges, Australia
subject: NMR spectroscopy
subject: Nuclear magnetic resonance spectroscopy

description: This thesis is divided into two parts (A and B). Our overall aim was to isolate and characterize natural products from Australian marine sponges. The uniqueness of this thesis arises from the application of Density Functional Theory (DFT), a quantum mechanical modelling method, which can be used to help elucidate and confirm molecular structures. DFT calculations, and in particular, DFT-NMR (Nuclear Magnetic Resonance) calculations, are still in their relative infancy. The research presented in Part A exemplifies DFT-NMR as a powerful technique, which can be added to a natural product chemist’s “structure-elucidation toolkit”.
Compact Binary Formation in Open Star Clusters II: Difficulty of Gaia NS formation in low-mass star clusters
Creators: name: Tanikawa, Ataru
name: Wang, Long
name: Fujii, Michiko S.
Publisher: name: arXiv
Year: 2024
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Gaia mission offers opportunities to search for compact binaries not involved in binary interactions (hereafter inert compact binaries), and results in the discoveries of binaries containing one black hole (BH) or one neutron star (NS), called "Gaia BHs" and "Gaia NSs", respectively. We have assessed if Gaia BHs and NSs can be formed in open clusters through dynamical interactions. In order to obtain a large number of inert compact binaries similar to Gaia BHs and NSs, we have performed gravitational $N$-body simulations for a large number of open clusters whose total mass is $1.2 \times 10^8 M_\odot$. These clusters have various masses, metallicities, densities, and binary fractions. We have found that open clusters form Gaia BHs ($10^{-6}$-$10^{-5} M_\odot^{-1}$) much more efficiently than Gaia NSs ($\lesssim 10^{-7} M_\odot^{-1}$) for any cluster parameters. This is quite inconsistent with observational results, because the reported numbers of Gaia BHs and NSs are $3$ and $21$, respectively. Additionally, we have switched off NS natal kicks for $10^4$ open clusters each weighing $10^3 M_\odot$ in order to retain a large number of NSs in open clusters. Then, open clusters form inert NS binaries originating from primordial binaries rather than formed through dynamical interactions. This means that Gaia NSs are formed dominantly on isolated fields, not in open clusters, if there is no NS natal kick. We have concluded that Gaia BHs can be dominantly formed in open clusters, however Gaia NSs cannot.
description: 11 pages, 8 figures, accepted for publication in The Open Journal of Astrophysics
title: Inula helenium
title: Echter Alant (Inula helenium)
titleType: AlternativeTitle
Creators: name: Schulz, Herbert
Publisher: name: Universitätsbibliothek Braunschweig
Year: 2006
Subjects: subject: Diasammlung Herbert Schulz
subject: 580

description: Enthält 4 Bilder des Echten Alants.
title: Inula hirta
title: Rauhhaariger Alant (Inula hirta)
titleType: AlternativeTitle
Creators: name: Schulz, Herbert
Publisher: name: Universitätsbibliothek Braunschweig
Year: 2006
Subjects: subject: Diasammlung Herbert Schulz
subject: 580

description: Enthält 5 Bilder des Rauhhaarigen Alants.
Expectations and Aspirations of Kuwaiti Fathers and Mothers Towards Transition Outcomes of Their Child with a Disability in Kuwait
Creators: Al-Jazzaf, Abrar M.
Publisher: name: Columbia University
Year: 2012
Subjects: Special education

description: There are many challenges that face individuals with disabilities and their families during the transition period from childhood to adulthood. As young adolescents exit high school many of their future transition options are influenced by their family context, especially the child's parents. This study investigates parents' expectations and aspirations for their children with disabilities in terms of transition outcomes in order to understand the needs of those parents in preparing their children as they exit school, and transition to adulthood in Kuwait, a country that has yet to address transition in its laws and policies on disabilities. The proposed study investigated parental expectations and aspirations in their child's preparation for transition. It also examined the role of some demographic variables found to be important in past research, such as parent's gender, age, education level, monthly income, child's gender, child's age, and degree of child's disability. These variables were examined in relation to Kuwaiti fathers' and mothers' transition expectations and aspirations in the following areas: future orientation, community resources, financial independence, employment, postsecondary education, residential and daily living, and social relationships. An overall finding of this study is that parents, who are younger in age, have lower income and education levels, and have a younger child with a less severe disability tended to have higher expectations and aspirations for their children with disabilities. Despite the older age of the fathers and their higher education and income levels compared to the mothers, both fathers and mothers had generally similar expectations and aspirations towards transition outcomes for their children with disabilities. However, mothers had higher aspirations for their child's social relationships than did the fathers, especially for their daughters. The best predictors for fathers' and mothers' expectations and aspirations for their children's transition outcomes included, fathers' education level, mothers' education level, mothers' income, child's age, and degree of child's disability. Parents' high expectations and aspirations for employment, postsecondary education, and social relationships were a promising theme as their children transitioned to adulthood. The results of this study have provided a framework for further research in the area of transition in Kuwait. Although transition is a vital area and concept that should influence national laws and policies, it still remains relatively new to Kuwait. This research study will potentially lead to an increased understanding of parents' needs for support services to guide them and their children to a smoother transition to adulthood.
Boosting quantum vacuum signatures by coherent harmonic focusing
Creators: name: Karbstein, Felix
name: Blinne, Alexander
name: Gies, Holger
name: Zepf, Matt
Publisher: name: arXiv
Year: 2019
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We show that coherent harmonic focusing provides an efficient mechanism to boost all-optical signatures of quantum vacuum nonlinearity in the collision of high-intensity laser fields, thereby offering a promising route to their first experimental detection. Assuming two laser pulses of given parameters at our disposal, we demonstrate a substantial increase of the number of signal photons measurable in experiments where one of the pulses undergoes coherent harmonic focusing before it collides with the fundamental-frequency pulse. Imposing a quantitative criterion to discern the signal photons from the background of the driving laser photons and accounting for the finite purity of polarization filtering, we find that signal photons arising from inelastic scattering processes constitute a promising signature. By contrast, quasi-elastic contributions which are conventionally assumed to form the most prospective signal remain background dominated. Our findings may result in a paradigm shift concerning which photonic signatures of quantum vacuum nonlinearity are accessible in experiment.
description: 9 pages, 6 figures; matches journal version; typos corrected
Varieties over a finite field with trivial Chow group of 0-cycles have a rational point
Creators: name: Esnault, Hélène
Publisher: name: arXiv
Year: 2002
Subjects: subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics

description: Smooth projective varieties $X$ over a finite field $k$ with $CH_0(X\otimes \bar{k(X)})=\mathbb Z$ have a rational point, in particular Fano varieties. We also refer to http://link.springer.de/link/service/journals/00222/tocs.htm where the last version, cleaned from some typos, should be published online.
description: 6 pages
Quantum Entanglement, Symmetric Nonnegative Quadratic Polynomials and Moment Problems
Creators: name: Blekherman, Grigoriy
name: Bharath, H. M.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Mathematical Physics (math-ph)
subject: Quantum Gases (cond-mat.quant-gas)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Quantum states are represented by positive semidefinite Hermitian operators with unit trace, known as density matrices. An important subset of quantum states is that of separable states, the complement of which is the subset of \textit{entangled} states. We show that the problem of deciding whether a quantum state is entangled can be seen as a moment problem in real analysis. Only a small number of such moments are accessible experimentally, and so in practice the question of quantum entanglement of a many-body system can be reduced to a truncated moment problem. By considering quantum entanglement of $n$ identical atoms we arrive at the truncated moment problem defined for symmetric measures over a product of $n$ copies of unit balls in $\mathbb{R}^d$. We work with moments up to degree $2$. We derive necessary and sufficient conditions for belonging to the moment cone, which can be expressed via a linear matrix inequality of size at most $2d+2$, which is independent of $n$. The linear matrix inequalities can be converted into a set of explicit semialgebraic inequalities giving necessary and sufficient conditions for membership in the moment cone, and show that the two conditions approach each other in the limit of large $n$. The inequalities are derived via considering the dual cone of nonnegative polynomials, and its sum-of-squares relaxation. We show that the sum-of-squares relaxation of the dual cone is asymptotically exact, and using symmetry reduction techniques (J. Pure Appl. Algebra 192, no. 1-3, 95, arXiv:1205.3102), it can be written as a small linear matrix inequality of size at most $2d+2$, which is independent of $n$. For the cone of symmetric nonnegative polynomials with the relevant support we also prove an analogue of the half-degree principle for globally nonnegative symmetric polynomials (J. Math. Anal. Appl. 284, no. 1, 174, J. Pure Appl. Algebra 216, no. 4, 850).
description: 24 pages
Exoplanets and University-Industry Collaboration
Creators: name: Banks, T.
name: Budding, E.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Physics and Society (physics.soc-ph)
subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: A brief review is given of a university outreach programme by a commercial organisation, which uses the Kepler exoplanet data. Key insights derived from this research are presented, along with discussion of the benefi ts and challenges of such a collaboration between industry and academia. It is hoped that this account will be an inspiring example for others to emulate.
title: Inula salicina
title: Weidenblättriger Alant (Inula salicina)
titleType: AlternativeTitle
Creators: name: Schulz, Herbert
Publisher: name: Universitätsbibliothek Braunschweig
Year: 2006
Subjects: subject: Diasammlung Herbert Schulz
subject: 580

description: Enthält 4 Bilder des Weidenblättrigen Alants.
HAYVONLAR VA PARRANDALARNING K GURUHI VITAMINLARIGA BO'LGAN EHTIYOJI
Creators: name: Qarshiev D. - talaba Kuchimuratov M. - talaba Babayeva Sh.A. – assistant Samarqand davlat veterinariya medisinasi, chorvachilik va biotexnologiyalar universiteti
Publisher: name: Zenodo
Year: 2025

description: Ushbu maqolada hayvonlar va parrandalarning K guruhivitaminlariga bo‘lgan ehtiyoji haqida, olimlarning fikrlari hamda adabiyotlar sharhibayon qilingan
A Phone-based Distributed Ambient Temperature Measurement System with An Efficient Label-free Automated Training Strategy
Creators: name: Chen, Dayin
name: Shi, Xiaodan
name: Zhang, Haoran
name: Song, Xuan
name: Zhang, Dongxiao
name: Chen, Yuntian
name: Yan, Jinyue
Publisher: name: arXiv
Year: 2024
Subjects: subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: Enhancing the energy efficiency of buildings significantly relies on monitoring indoor ambient temperature. The potential limitations of conventional temperature measurement techniques, together with the omnipresence of smartphones, have redirected researchers'attention towards the exploration of phone-based ambient temperature estimation methods. However, existing phone-based methods face challenges such as insufficient privacy protection, difficulty in adapting models to various phones, and hurdles in obtaining enough labeled training data. In this study, we propose a distributed phone-based ambient temperature estimation system which enables collaboration among multiple phones to accurately measure the ambient temperature in different areas of an indoor space. This system also provides an efficient, cost-effective approach with a few-shot meta-learning module and an automated label generation module. It shows that with just 5 new training data points, the temperature estimation model can adapt to a new phone and reach a good performance. Moreover, the system uses crowdsourcing to generate accurate labels for all newly collected training data, significantly reducing costs. Additionally, we highlight the potential of incorporating federated learning into our system to enhance privacy protection. We believe this study can advance the practical application of phone-based ambient temperature measurement, facilitating energy-saving efforts in buildings.
title: Inula britannica
title: Wiesen-Alant (Inula britannica)
titleType: AlternativeTitle
Creators: name: Schulz, Herbert
Publisher: name: Universitätsbibliothek Braunschweig
Year: 2006
Subjects: subject: Diasammlung Herbert Schulz
subject: 580

description: Enthält 2 Bilder des Wiesen-Alants.
Predicting Census Survey Response Rates With Parsimonious Additive Models and Structured Interactions
Creators: name: Ibrahim, Shibal
name: Radchenko, Peter
name: Ben-David, Emanuel
name: Mazumder, Rahul
Publisher: name: arXiv
Year: 2021
Subjects: subject: Machine Learning (stat.ML)
subject: Machine Learning (cs.LG)
subject: Applications (stat.AP)
subject: Computation (stat.CO)
subject: FOS: Computer and information sciences

description: In this paper, we consider the problem of predicting survey response rates using a family of flexible and interpretable nonparametric models. The study is motivated by the US Census Bureau's well-known ROAM application, which uses a linear regression model trained on the US Census Planning Database data to identify hard-to-survey areas. A crowdsourcing competition (Erdman and Bates, 2016) organized more than ten years ago revealed that machine learning methods based on ensembles of regression trees led to the best performance in predicting survey response rates; however, the corresponding models could not be adopted for the intended application due to their black-box nature. We consider nonparametric additive models with a small number of main and pairwise interaction effects using $\ell_0$-based penalization. From a methodological viewpoint, we study our estimator's computational and statistical aspects and discuss variants incorporating strong hierarchical interactions. Our algorithms (open-sourced on GitHub) extend the computational frontiers of existing algorithms for sparse additive models to be able to handle datasets relevant to the application we consider. We discuss and interpret findings from our model on the US Census Planning Database. In addition to being useful from an interpretability standpoint, our models lead to predictions comparable to popular black-box machine learning methods based on gradient boosting and feedforward neural networks - suggesting that it is possible to have models that have the best of both worlds: good model accuracy and interpretability.
description: Published in Annals of Applied Statistics
Contraction Theory for Nonlinear Stability Analysis and Learning-based Control: A Tutorial Overview
Creators: name: Tsukamoto, Hiroyasu
name: Chung, Soon-Jo
name: Slotine, Jean-Jacques E.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Machine Learning (cs.LG)
subject: Robotics (cs.RO)
subject: Systems and Control (eess.SY)
subject: Optimization and Control (math.OC)
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Mathematics

description: Contraction theory is an analytical tool to study differential dynamics of a non-autonomous (i.e., time-varying) nonlinear system under a contraction metric defined with a uniformly positive definite matrix, the existence of which results in a necessary and sufficient characterization of incremental exponential stability of multiple solution trajectories with respect to each other. By using a squared differential length as a Lyapunov-like function, its nonlinear stability analysis boils down to finding a suitable contraction metric that satisfies a stability condition expressed as a linear matrix inequality, indicating that many parallels can be drawn between well-known linear systems theory and contraction theory for nonlinear systems. Furthermore, contraction theory takes advantage of a superior robustness property of exponential stability used in conjunction with the comparison lemma. This yields much-needed safety and stability guarantees for neural network-based control and estimation schemes, without resorting to a more involved method of using uniform asymptotic stability for input-to-state stability. Such distinctive features permit the systematic construction of a contraction metric via convex optimization, thereby obtaining an explicit exponential bound on the distance between a time-varying target trajectory and solution trajectories perturbed externally due to disturbances and learning errors. The objective of this paper is, therefore, to present a tutorial overview of contraction theory and its advantages in nonlinear stability analysis of deterministic and stochastic systems, with an emphasis on deriving formal robustness and stability guarantees for various learning-based and data-driven automatic control methods. In particular, we provide a detailed review of techniques for finding contraction metrics and associated control and estimation laws using deep neural networks.
description: Annual Reviews in Control, Preprint Version, Accepted, Oct. 1st
Rank Polynomials of Fence Posets are Unimodal
Creators: name: Oğuz, Ezgi Kantarcı
name: Ravichandran, Mohan
Publisher: name: arXiv
Year: 2021
Subjects: subject: Combinatorics (math.CO)
subject: FOS: Mathematics

description: We prove a conjecture of Morier-Genoud and Ovsienko that says that rank polynomials of the distributive lattices of lower ideals of fence posets are unimodal. We do this by introducing a related class of circular fence posets and proving a stronger version of the conjecture due to McConville, Sagan and Smyth. We show that the rank polynomials of circular fence posets are symmetric and conjecture that unimodality holds except in some particular cases. We also apply the recent work of Elizalde, Plante, Roby and Sagan on rowmotion on fences and show many of their homomesy results hold for the circular case as well.
description: 21 pages, 16 figures, 2 tables
title: Inula conyzae
title: Dürrwurz (Inula conyzae)
titleType: AlternativeTitle
Creators: name: Schulz, Herbert
Publisher: name: Universitätsbibliothek Braunschweig
Year: 2006
Subjects: subject: Diasammlung Herbert Schulz
subject: 580

description: Enthält 7 Bilder des Dürrwurzes.
Homotopy types of complements of 2-arrangements in R^4
Creators: name: Matei, Daniel
name: Suciu, Alexander I.
Publisher: name: arXiv
Year: 1997
Subjects: subject: Geometric Topology (math.GT)
subject: Algebraic Geometry (math.AG)
subject: Combinatorics (math.CO)
subject: FOS: Mathematics
subject: 52B30, 57M05, 57M25 (Primary); 14M12, 20F36 (Secondary)

description: We study the homotopy types of complements of arrangements of n transverse planes in R^4, obtaining a complete classification for n <= 6, and lower bounds for the number of homotopy types in general. Furthermore, we show that the homotopy type of a 2-arrangement in R^4 is not determined by the cohomology ring, thereby answering a question of Ziegler. The invariants that we use are derived from the characteristic varieties of the complement. The nature of these varieties illustrates the difference between real and complex arrangements.
description: LaTeX2e, 25 pages with 5 figures. Revised version, to appear in Topology
Magnetoplasmons for the $α$-T$_3$ model with filled Landau levels
Creators: name: Balassis, Antonios
name: Dahal, Dipendra
name: Gumbs, Godfrey
name: Iurov, Andrii
name: Huang, Danhong
name: Roslyak, Oleksiy
Publisher: name: arXiv
Year: 2019
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Using the $α$-T$_3$ model, we carried out analytical and numerical calculations for the static and dynamic polarization functions in the presence of a perpendicular magnetic field. These results were employed to determine the longitudinal dielectric function and the magnetoplasmon dispersion relation. The magnetic field splits the continuous valence, conduction and flat energy subband into discrete Landau levels which present significant effects on the polarization function and magnetoplasmon dispersion. We present results for a doped layer in the integer quantum Hall regime for fixed hopping parameter $α$ and various magnetic fields as well as chosen magnetic field and different $α$ in the random phase approximation.
description: 20 pages, 7 figures
Non-Gaussian statistics in space plasma turbulence, fractal properties and pitfalls
Creators: name: de Wit, T. Dudok
name: Krasnosel'skikh, V. V.
Publisher: name: arXiv
Year: 1996
Subjects: subject: Cellular Automata and Lattice Gases (nlin.CG)
subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: Magnetic field fluctuations in the vicinity of the Earth's bow shock have been investigated with the aim to characterize the intermittent behaviour of strong plasma turbulence. The observed small-scale intermittency may be the signature of a multifractal process but a deeper inspection reveals caveats in such an interpretation. Several effects, including the anisotropy of the wavefield, the violation of the Taylor hypothesis and the occasional occurrence of coherent wave packets, strongly affect the higher order statistical properties. After correcting these effects, a more Gaussian and scale-invariant wavefield is recovered.
description: 13 pages (including 13 postscript figures), to appear in Nonlinear Processes in Geophysics
Nonresonance and global existence of prestressed nonlinear elastic waves
Creators: name: Sideris, Thomas C.
Publisher: name: arXiv
Year: 2000
Subjects: subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics
subject: 35L70; 74B20

description: The nonlinear hyperbolic system of pde's governing the evolution of the deformation of isotropic hyperelastic materials is considered. In the absence of boundaries and with an additional nonresonance or null condition, the system has global smooth solutions starting close to a one-parameter family of homogeneous dilations. The proof combines energy estimates with new decay estimates for the linear problem.
description: 26 pages, published version
title: Helianthus tuberosus
title: Topinambur (Helianthus tuberosus)
titleType: AlternativeTitle
Creators: name: Schulz, Herbert
Publisher: name: Universitätsbibliothek Braunschweig
Year: 2006
Subjects: subject: Diasammlung Herbert Schulz
subject: 580

description: Enthält 1 Bild des Topinamburs.
3D object quality prediction for Metal Jet Printer with Multimodal thermal encoder
Creators: name: Rachel
name: Chen
name: Zheng, Wenjia
name: Jalui, Sandeep
name: Suri, Pavan
name: Zeng, Jun
Publisher: name: arXiv
Year: 2024
Subjects: subject: Machine Learning (cs.LG)
subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: With the advancements in 3D printing technologies, it is extremely important that the quality of 3D printed objects, and dimensional accuracies should meet the customer's specifications. Various factors during metal printing affect the printed parts' quality, including the power quality, the printing stage parameters, the print part's location inside the print bed, the curing stage parameters, and the metal sintering process. With the large data gathered from HP's MetJet printing process, AI techniques can be used to analyze, learn, and effectively infer the printed part quality metrics, as well as assist in improving the print yield. In-situ thermal sensing data captured by printer-installed thermal sensors contains the part thermal signature of fusing layers. Such part thermal signature contains a convoluted impact from various factors. In this paper, we use a multimodal thermal encoder network to fuse data of a different nature including the video data vectorized printer control data, and exact part thermal signatures with a trained encoder-decoder module. We explored the data fusing techniques and stages for data fusing, the optimized end-to-end model architecture indicates an improved part quality prediction accuracy.
Birational rigidity of a three-dimensional double cone
Creators: name: Grinenko, Mikhail
Publisher: name: arXiv
Year: 1998
Subjects: subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics
subject: 14E07; 14J20

description: It is proved that a three-dimensional double cone is a birationally rigid variety. We also compute the group of birational automorphisms of such a variety. This work is based on the method of "untwisting" maximal singularities of linear system.
description: 20 pages; AmsLaTex
Supporting information from Honeybee dietary neonicotinoid exposure is associated with pollen collection from agricultural weeds
Creators: name: T. J. Wood
name: I. Kaplan
name: Y. Zhang
name: Z. Szendrei
Publisher: name: The Royal Society
Year: 2019
Subjects: subject: Environmental Science
subject: Ecology
subject: FOS: Biological sciences

description: Supporting information for Honey bee dietary neonicotinoid exposure is associated with pollen collection from agricultural weeds
LncRNA FAM138B inhibits the progression of non-small cell lung cancer through miR-105-5p
Creators: name: Gao, Jing
name: Pan, Tinghong
name: Wang, Hui
name: Wang, Shuai
name: Chai, Jin
name: Jin, Chengyan
Publisher: name: Taylor & Francis
Year: 2022
Subjects: Biophysics
Biochemistry
Cell Biology
Molecular Biology
Pharmacology
Biotechnology
Biological Sciences not elsewhere classified
Developmental Biology
Cancer

description: As a type of lung cancer, non-small cell lung cancer (NSCLC) has the characteristics of high mortality and high recurrence rate, which poses a great threat to human life and health. Due to the high risk of surgical treatment and the slow recovery of wounds, non-coding RNAs, especially lncRNAs are used as new potential clinical prognostic markers to prevent and treat cancer in advance. This study aims to explore the role of FAM138B in NSCLC and its possibility as a prognostic biomarker. Real-timequantitative polymerase chain reaction (RT-qPCR) was used to detect the expression and overexpression level of lncRNA FAM138B (FAM138B) in cells and tissues. The CCK-8, Transwell migration and invasion methods were performed to observe the cell transfection.The interaction between FAM138B and miR-105-5p was predicted by the bioinformatics tool starBase v2.0, and verified by the luciferase reporter gene experiment. Kaplan-Meier and Cox regression analyses were used to determine the prognostic significance of FAM138B in NSCLC. The expression of FAM138B is down-regulated in NSCLC cells and tissues. Overexpression of FAM138B can inhibit the expression level of miR-105-5p in NSCLC cells, and the ability of NSCLC cells to proliferate, migrate and invade is downregulated. FAM138B targets miR-105-5p, and there is a negative correlation between FAM138B and miR-105-5p. It is confirmed that FAM138B inhibits the progression of NSCLC by targeting miR-105-5p and can be a potential prognostic biomarker for NSCLC.
title: Erigeron uniflorus
title: Einköpfiges Berufkraut (Erigeron uniflorus)
titleType: AlternativeTitle
Creators: name: Schulz, Herbert
Publisher: name: Universitätsbibliothek Braunschweig
Year: 2006
Subjects: subject: Diasammlung Herbert Schulz
subject: 580

description: Enthält 15 Bilder des Einköpfigen Berufkrauts.
A topological Josephson junction platform for creating, manipulating, and braiding Majorana bound states
Creators: name: Hegde, Suraj S.
name: Yue, Guang
name: Wang, Yuxuan
name: Huemiller, Erik
name: Van Harlingen, D. J.
name: Vishveshwara, Smitha
Publisher: name: arXiv
Year: 2019
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: As part of the intense effort towards identifying platforms in which Majorana bound states can be realized and manipulated to perform qubit operations, we propose a topological Josephson junction architecture that achieves these capabilities and which can be experimentally implemented. The platform uses conventional superconducting electrodes deposited on a topological insulator film to form networks of proximity-coupled lateral Josephson junctions. Magnetic fields threading the network of junction barriers create Josephson vortices that host Majorana bound states localized in the junction where the local phase difference is an odd multiple of $π$, i.e. attached to the cores of the Josephson vortices. This enables us to manipulate the Majorana states by moving the Josephson vortices, achieving functionality exclusive to these systems in contrast to others, such as those composed of topological superconductor nanowires. We describe protocols for: 1) braiding localized Majorana states by exchange, 2) controlling the separation and hence the coupling of adjacent localized Majorana states to effect non-Abelian rotations via hybridization of the Majorana modes, and 3) reading out changes in the non-local parity correlations induced by such operations. These schemes make use of the application of current pulses and local magnetic field pulses to control the location of vortices, and measurements of the Josephson current-phase relation to reveal the presence of the Majorana bound states. We describe the architecture and schemes in the context of experiments currently underway.
description: 23 pages, 12 Figures. Significant edits and new subsection added, Accepted version in Annals of Physics
Additional file 3 of Prevalence and recurrence of bacteraemia in hospitalised people who inject drugs – a single Centre retrospective cohort study in Denmark
Creators: name: Thønnings, Sara
name: Jansåker, Filip
name: Sundqvist, Christoffer
name: Thudium, Rebekka Faber
name: Nielsen, Susanne Dam
name: Knudsen, Jenny Dahl
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: Neuroscience
subject: Biotechnology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Cancer
subject: Science Policy
subject: 110309 Infectious Diseases
subject: FOS: Health sciences
subject: 60506 Virology
subject: Computational Biology

description: Additional file 3: Supplementary Table 2. Blood culture isolates detected in hospitalised people who inject drugs.
3-Manifolds with complexity at most 9
Creators: name: Martelli, Bruno
name: Petronio, Carlo
Publisher: name: arXiv
Year: 2000
Subjects: subject: Geometric Topology (math.GT)
subject: FOS: Mathematics
subject: 57M20; 57N10

description: We describe an algorithm which has enabled us to give a complete list, without repetitions, of all closed oriented irreducible 3-manifolds of complexity up to 9. More interestingly, we have actually been able to give a "name" to each such manifold, by recognizing its canonical decomposition into Seifert fibred spaces and hyperbolic manifolds. The algorithm relies on the extension of Matveev's theory of complexity to the case of manifolds bounded by suitably marked tori, and on the notion of assembling of two such manifolds. We show that every manifold is an assembling of manifolds which cannot be further deassembled, and we prove that there are surprisingly few such manifolds up to complexity 9. Our most interesting experimental discovery is the following: there are 4 hyperbolic manifolds having complexity 9, and they turn out to be precisely the 4 closed hyperbolic manifolds of least known volume. All other manifolds having complexity at most 9 are graph manifolds.
description: 49 pages, 32 figures. This is a revised version of math.GT/0005104, accepted for publication in Experimental Mathematics. The main improvement is an intrinsic definition of "brick", in terms of manifolds rather than in terms of spines, and an extension of Matveev's complexity to manifolds bounded by suitably marked tori
title: Characterisation of the Sec Protein Secretion Pathway in Campylobacter jejuni
Creators: name: Barry, Anita Marie
Publisher: name: Griffith University
Year: 2010
Subjects: subject: Campylobacter jejuni
subject: Sec protein
subject: Protein-protein interaction

description: The Sec protein secretion pathway allows the translocation of proteins in an unfolded state across the cytoplasmic membrane with subsequent cleavage of an N-terminal signal peptide. The preprotein is transported to the translocase via the SRP or the SecB protein. The translocase consists of a heterotrimeric complex, SecYEG, with the ATPase SecA peripherally bound. The Sec pathway in C. jejuni is poorly characterized. Although it is known to be functional in C. jejuni only major components such as: SecY, SecE, SecG, SecD, SecF and YajC have been identified due to sequence identity. The chaperone protein SecB has not been identified. The aim of this study was therefore to identify and characterize a possible SecB protein in C. jejuni. The initial hypothesis of this study proposed the hypothetical C8J_0939 protein of C. jejuni may perform similar functions to the SecB protein of other Gram-negative microbes such as E. coli. This was based on in silico analysis indicating similarities of C8J_0939 to SecB in other microorganisms in regions important for SecB structure and binding to SecA and preproteins. Further bioinformatic analysis also identified the presence of the C-terminal region of SecA involved in binding to SecB in other microorganisms, supporting the possibility a chaperone with SecB function exists in C. jejuni.
title: Erigeron alpinus
title: Alpen-Berufkraut (Erigeron alpinus)
titleType: AlternativeTitle
Creators: name: Schulz, Herbert
Publisher: name: Universitätsbibliothek Braunschweig
Year: 2006
Subjects: subject: Diasammlung Herbert Schulz
subject: 580

description: Enthält 12 Bilder des Alpen-Berufkrauts.
Sequential generation of multiphoton entanglement with a Rydberg superatom
Creators: name: Yang, Chao-Wei
name: Yu, Yong
name: Li, Jun
name: Jing, Bo
name: Bao, Xiao-Hui
name: Pan, Jian-Wei
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Multiqubit entanglement is an indispensable resource for quantum information science. In particular, the entanglement of photons is of conceptual interest due to its implications in measurement-based quantum computing, communication, and metrology. The traditional way of spontaneous parametric down-conversion already demonstrates entanglement of up to a dozen photons but is hindered by its probabilistic nature. Here, we experimentally demonstrate an efficient approach for multi-photon generation with a Rydberg superatom, a mesoscopic atomic ensemble under Rydberg blockade. Using it as an efficient single-photon interface, we iterate the photon creation process that gives rise to a train of temporal photonic modes entangled in photon number degree. We detect the multiphoton entanglement via converting the photon number degree to a time-bin degree. Photon correlations verify entanglement up to 12 modes. The efficiency scaling factor for adding one photon is 0.27, surpassing previous results, and can be increased significantly without fundamental limitations.
description: 11 pages, 9 figures
Spatio-temporal dynamics and plastic flow of vortices in superconductors with periodic arrays of pinning sites
Creators: name: Reichhardt, C.
name: Groth, J.
name: Olson, C. J.
name: Field, Stuart
name: Nori, Franco
Publisher: name: arXiv
Year: 1996
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Materials Science (cond-mat.mtrl-sci)
subject: Pattern Formation and Solitons (nlin.PS)
subject: FOS: Physical sciences

description: We present simulations of flux-gradient-driven superconducting rigid vortices interacting with square and triangular arrays of columnar pinning sites in an increasing external magnetic field. These simulations allow us to quantitatively relate spatio-temporal microscopic information of the vortex lattice with typically measured macroscopic quantities, such as the magnetization $M(H)$. The flux lattice does not become completely commensurate with the pinning sites throughout the sample at the magnetization matching peaks, but forms a commensurate lattice in a region close to the edge of the sample. Matching fields related to unstable vortex configurations do not produce peaks in $M(H)$. We observe a variety of evolving complex flux profiles, including flat terraces or plateaus separated by winding current-carrying strings and, near the peaks in $M(H)$, plateaus only in certain regions, which move through the sample as the field increases.
Kazhdan-Lusztig polynomials and character formulae for the Lie superalgebra q(n)
Creators: name: Brundan, Jonathan
Publisher: name: arXiv
Year: 2002
Subjects: subject: Representation Theory (math.RT)
subject: FOS: Mathematics
subject: 17B10

description: The problem of computing the characters of the finite dimensional irreducible representations of the Lie superalgebra $\mathfrak q(n)$ over $\C$ was solved in 1996 by I. Penkov and V. Serganova. In this article, we give a different approach relating the character problem to canonical bases of the quantized enveloping algebra $U_q(\mathfrak b_{\infty})$. We also formulate for the first time a conjecture for the characters of the infinite dimensional irreducible representations in the analogue of category $\mathcal O$ for the Lie superalgebra $\mathfrak{q}(n)$.
description: Version 2: some minor corrections and updated references
Slicing knots in definite 4-manifolds
Creators: name: Kjuchukova, Alexandra
name: Miller, Allison N.
name: Ray, Arunima
name: Sakallı, Sümeyra
Publisher: name: arXiv
Year: 2021
Subjects: subject: Geometric Topology (math.GT)
subject: FOS: Mathematics
subject: 57K10, 57N35, 57N70, 57R40

description: We study the $\mathbb{CP}^2$-slicing number of knots, i.e. the smallest $m\geq 0$ such that a knot $K\subseteq S^3$ bounds a properly embedded, null-homologous disk in a punctured connected sum $(\#^m\mathbb{CP}^2)^{\times}$. We give a lower bound on the smooth $\mathbb{CP}^2$-slicing number of a knot in terms of its double branched cover, and we find knots with arbitrarily large but finite smooth $\mathbb{CP}^2$-slicing number. We also give an upper bound on the topological $\mathbb{CP}^2$-slicing number in terms of the Seifert form and find knots for which the smooth and topological $\mathbb{CP}^2$-slicing numbers are both finite, nonzero, and distinct.
description: 33 pages, 3 footnotes
EMPIRE: The IRAM 30-m Dense Gas Survey of Nearby Galaxies
Creators: name: Jiménez-Donaire, María J.
name: Bigiel, F.
name: Leroy, A. K.
name: Usero, A.
name: Cormier, D.
name: Puschnig, J.
name: Gallagher, M.
name: Kepley, A.
name: Bolatto, A. D.
name: García-Burillo, S.
name: Hughes, A.
name: Kramer, C.
name: Pety, J.
name: Schinnerer, E.
name: Schruba, A.
name: Schuster, K.
name: Walter, F.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We present EMPIRE, an IRAM 30-m large program that mapped $λ= 3{-}4$ mm dense gas tracers at $\sim 1{-}2\,$kpc resolution across the whole star-forming disk of nine nearby, massive, spiral galaxies. We describe the EMPIRE observing and reduction strategies and show new whole-galaxy maps of HCN(1-0), HCO$^+$(1-0), HNC(1-0) and CO(1-0). We explore how the HCN-to-CO and IR-to-HCN ratios, observational proxies for the dense gas fraction and dense gas star formation efficiency, depend on host galaxy and local environment. We find that the fraction of dense gas correlates with stellar surface density, gas surface density, molecular-to-atomic gas ratio, and dynamical equilibrium pressure. In EMPIRE, the star formation rate per unit dense gas anti-correlates with these same environmental parameters. Thus, although dense gas appears abundant the central regions of many spiral galaxies, this gas appears relatively inefficient at forming stars. These results qualitatively agree with previous work on nearby galaxies and the Milky Way's Central Molecular Zone. To first order, EMPIRE demonstrates that the conditions in a galaxy disk set the gas density distribution and that the dense gas traced by HCN shows an environment-dependent relation to star formation. However, our results also show significant ($\pm 0.2$ dex) galaxy-to-galaxy variations. We suggest that gas structure below the scale of our observations and dynamical effects likely also play an important role.
description: Accepted for publication in ApJ
Structurally Flexible Neural Networks: Evolving the Building Blocks for General Agents
Creators: name: Pedersen, Joachim Winther
name: Plantec, Erwan
name: Nisioti, Eleni
name: Montero, Milton
name: Risi, Sebastian
Publisher: name: arXiv
Year: 2024
Subjects: subject: Neural and Evolutionary Computing (cs.NE)
subject: Artificial Intelligence (cs.AI)
subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: Artificial neural networks used for reinforcement learning are structurally rigid, meaning that each optimized parameter of the network is tied to its specific placement in the network structure. It also means that a network only works with pre-defined and fixed input- and output sizes. This is a consequence of having the number of optimized parameters being directly dependent on the structure of the network. Structural rigidity limits the ability to optimize parameters of policies across multiple environments that do not share input and output spaces. Here, we evolve a set of neurons and plastic synapses each represented by a gated recurrent unit (GRU). During optimization, the parameters of these fundamental units of a neural network are optimized in different random structural configurations. Earlier work has shown that parameter sharing between units is important for making structurally flexible neurons We show that it is possible to optimize a set of distinct neuron- and synapse types allowing for a mitigation of the symmetry dilemma. We demonstrate this by optimizing a single set of neurons and synapses to solve multiple reinforcement learning control tasks simultaneously.