cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
The role of SMARCAD1 during replication stress
Creators: Joseph, Sarah
Publisher: name: Columbia University
Year: 2020
Subjects: subject: Molecular biology
subject: Genetics
subject: FOS: Biological sciences
subject: Breast--Cancer--Genetic aspects
subject: Ovaries--Cancer--Genetic aspects
subject: Heterozygosity

description: Heterozygous mutations in BRCA1 or BRCA2 predispose carriers to an increased risk for breast or ovarian cancer. Both BRCA1 and BRCA2 (BRCA1/2) play an integral role in promoting genomic stability through their respective actions during homologous recombination (HR) mediated repair and stalled replication fork protection from nucleolytic degradation. SMARCAD1 (SD1) is a SWI/SNF chromatin remodeler that has been implicated in promoting long-range end resection and contributes to HR. Using human cell lines, we show that SMARCAD1 promotes nucleolytic degradation in BRCA1/2-deficient cells dependent on its chromatin remodeling activity. Moreover, SMARCAD1 prevents DNA break formation and promotes fork restart at stalled replication forks. These studies identify a new role for SMARCAD1 at the replication fork. In addition to the work presented here, I discuss a method for introducing stop codons (nonsense mutations) into genes using CRISPR-mediated base editing, called iSTOP, and provide an online resource for accessing the sequence of iSTOP sgRNASs (sgSTOPs) for five base editor variants (VQR-BE3, EQR-BE3, VRER-BE3, SaBE3, and SaKKH-BE3) in humans and over 3 million targetable gene coordinates for eight eukaryotic species. Ultimately, with improvements to CRISPR base editors this method can help model and study nonsense mutations in human disease.
Thermodynamics of scalar fields in Kerr's geometry
Creators: name: Cognola, Guido
Publisher: name: arXiv
Year: 1997
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: The one-loop contributions to the entropy for a massive scalar field in a Kerr black hole are investigated using an approximation of the metric, which, after a conformal transformation, permits to work in a Rindler-like spacetime. Of course, as for the Schwarzschild case, the entropy is divergent in the proximity of the event horizon.
description: 7 pages, LaTex, (revised version-last section modified)
title: Caring for a Forest: Prof. Dr. Angelika Kubanek. Camera and editing: Thomas Wunderling. Interviewer: Lisa Auras. In cooperation with Gräflich Bernstorff'sche Betriebe and Nordwestdeutsche Versuchsanstalt
Creators: name: Kubanek, Angelika
name: Wunderling, Thomas
name: Auras, Lisa
Publisher: name: Englische Sprache und ihre Didaktik,
Year: 2015
Subjects: subject: bilingualer Unterricht
subject: Englischunterricht
subject: public understanding of science
subject: 42
subject: 577

description: Orpheus Project - public understanding of science: short films about regional sustainability research and sustainability initiatives, in accessible English
The role of Special Procedures of the UN Human Rights Council  in atrocity prevention
Creators: Rossetti, Clarissa
Publisher: name: Columbia University
Year: 2020
Subjects: Human rights
Atrocities
War crimes
Genocide

description: The research looks into mass human rights violations categorized as atrocity crimes, i.e. genocide, ethnic cleansing, war crimes, and crimes against humanity, examining the role played by the United Nations Human Rights Special Procedures in their prevention. The research examines whether the nature of the mechanism makes it well-positioned to identify patterns of human rights violations which may escalate into large-scale violence and mass atrocities. Atrocity crimes can represent a significant threat to stability. Given their relevance of mass atrocities for peace and security matters, the research focuses its attention on the engagement of Special Procedures with the Security Council. In particular, the research explored how Special Procedures have engaged with the Security Council to deliver early warnings regarding mass violations of human rights and unfolding crises. The research focuses on three case studies involving atrocities in former Yugoslavia, Iraq, and the Democratic Republic of Congo, in a timeframe extending from the early 1990s to the early 2000s, in which Special Rapporteurs of the UN Human Rights Council directly interacted with the Security Council. The interactions are analyzed in light of their impact, or lack thereof. Afterwards, instances of interaction decreased; therefore, the research explores potential factors behind the shift in engagement between Special Procedures and the Security Council. Additionally, it presents obstacles to the effectiveness of the early warning capacity of Special Procedures and examines what could be the most suitable role of Special Procedures in the broader atrocity prevention agenda.
The Chair
Creators: name: Soehngen, Marc
Publisher: name: The University of British Columbia
Year: 2010

description: Disclaimer: “UBC SEEDS provides students with the opportunity to share the findings of their studies, as well as their opinions, conclusions and recommendations with the UBC community. The reader should bear in mind that this is a student project/report and is not an official document of UBC. Furthermore readers should bear in mind that these reports may not reflect the current status of activities at UBC. We urge you to contact the research persons mentioned in a report or the SEEDS Coordinator about the current status of the subject matter of a project/report.”
Nonlinear Wave Propagation in 3D-Printed Graded Lattices of Hollow Elliptical Cylinders
Creators: name: Kim, Hyunryung
name: Kim, Eunho
name: Yang, Jinkyu
Publisher: name: arXiv
Year: 2018
Subjects: subject: Applied Physics (physics.app-ph)
subject: FOS: Physical sciences

description: We propose a 3D-printed graded lattice made of hollow elliptical cylinders (HECs) as a new way to design impact mitigation systems. We observe asymmetric dynamics in the graded HEC chains with increasing and decreasing stiffness. Specifically, the increasing stiffness chain shows an acceleration of the propagating waves, while the decreasing stiffness chain shows the opposite. From the standpoint of impact mitigation, the decreasing stiffness chain combined with the strain-softening behavior of HECs results in an order-of-magnitude improvement in force attenuation compared to the increasing stiffness chain. We extend this finding to the graded 2D arrays and demonstrate a similar trend of wave transmission efficiency contrast between the increasing and decreasing stiffness lattices. The 3D-printed HEC lattices shown in this study can lead to the development of a new type of impact mitigating and shock absorbing structures.
description: 22 pages, 11 figures, 4 appendices
title: Recycling electronic waste - a big challenge: idea, concept, script: Prof. Dr. Angelika Kubanek. Interviewer: Melina Wall
Creators: name: Kubanek, Angelika
name: Wall, Melina
Publisher: name: Englische Sprache und ihre Didaktik,
Year: 2015
Subjects: subject: Elektroschrott
subject: Umweltbildung
subject: Nachhaltigkeit
subject: electronic waste
subject: waste management
subject: 42
subject: 333

description: Orpheus Project - public understanding of science: short films about regional sustainability research and sustainability initiatives, in accessible English
Kepler map
Creators: name: Kaulakys, B.
name: Vilutis, G.
Publisher: name: arXiv
Year: 1999
Subjects: subject: Chaotic Dynamics (nlin.CD)
subject: Astrophysics (astro-ph)
subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: We present a consecutive derivation of mapping equations of motion for the one-dimensional classical hydrogenic atom in a monochromatic field of any frequency. We analyze this map in the case of high and low relative frequency of the field and transition from regular to chaotic behavior. We show that the map at aphelion is suitable for investigation of transition to chaotic behavior also in the low frequency field and even for adiabatic ionization when the strength of the external field is comparable with the Coulomb field. Moreover, the approximate analytical criterion (taking into account the electron's energy increase by the influence of the field) yields a threshold field strength quite close to the numerical results. We reveal that transition from adiabatic to chaotic ionization takes place when the ratio of the field frequency to the electron Kepler frequency approximately equals 0.1. For the dynamics and ionization in a very low frequency field the Kepler map can be converted to a differential equation and solved analytically. The threshold field of the adiabatic ionization obtained from the map is only 1.5% lower than the exact field strength of static field ionization.
description: LaTex, 11 pages, 2 PostScript figures
Drinfeld type presentations of loop algebras
Creators: name: Chen, Fulin
name: Jing, Naihuan
name: Kong, Fei
name: Tan, Shaobin
Publisher: name: arXiv
Year: 2019
Subjects: subject: Quantum Algebra (math.QA)
subject: FOS: Mathematics

description: Let $\mathfrak{g}$ be the derived subalgebra of a Kac-Moody Lie algebra of finite type or affine type, $μ$ a diagram automorphism of $\mathfrak{g}$ and $L(\mathfrak{g},μ)$ the loop algebra of $\mathfrak{g}$ associated to $μ$. In this paper, by using the vertex algebra technique, we provide a general construction of current type presentations for the universal central extension $\widehat{\mathfrak{g}}[μ]$ of $L(\mathfrak{g},μ)$. The construction contains the classical limit of Drinfeld's new realization for (twisted and untwisted) quantum affine algebras ([Dr]) and the Moody-Rao-Yokonuma presentation for toroidal Lie algebras ([MRY]) as special examples. As an application, when $\mathfrak{g}$ is of simply-laced type, we prove that the classical limit of the $μ$-twisted quantum affinization of the quantum Kac-Moody algebra associated to $\mathfrak{g}$ introduced in [CJKT1] is the universal enveloping algebra of $\widehat{\mathfrak{g}}[μ]$.
A new approach to the Berlekamp-Massey-Sakata Algorithm. Improving Locator Decoding
Creators: name: Bernal, José Joaquín
name: Simón, Juan Jacobo
Publisher: name: arXiv
Year: 2024
Subjects: subject: Information Theory (cs.IT)
subject: FOS: Computer and information sciences

description: We study the problem of the computation of Groebner basis for the ideal of linear recurring relations of a doubly periodic array. We find a set of indexes such that, along with some conditions, guarantees that the set of polynomials obtained at the last iteration in the Berlekamp-Massey-Sakata algorithm is exactly a Groebner basis for the mentioned ideal. Then, we apply these results to improve locator decoding in abelian codes.
description: 21 pages
title: Zusammenstellung und Anwendung Bayes'scher Verfahren bei der Stichprobenbeurteilung: (Projekt D 1 des SFB 148)
Creators: name: Henke, Volker
Publisher: name: Institut für Baustoffe, Massivbau und Brandschutz (IBMB)
Year: 1982
Subjects: subject: Forschungsbericht
subject: IBMB
subject: SFB 148
subject: 620

description: Institut für Baustoffe, Massivbau und Brandschutz, IBMB, der Technischen Universität Braunschweig - Materialprüfanstalt für das Bauwesen - MPA Braunschweig, vol. 51
Gauge invariant action for superstring in Ramond-Ramond plane-wave background
Creators: name: Hatsuda, Machiko
name: Kamimura, Kiyoshi
name: Sakaguchi, Makoto
Publisher: name: arXiv
Year: 2002
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We present a gauge invariant action for a superstring in the plane wave background with Ramond-Ramond (RR) five-form flux. The Wess-Zumino term is given explicitly in a bilinear form of the left invariant currents by introducing a fermionic center to define the nondegenerate group metric. The reparametrization invariance generators, whose combinations are conformal generators, and fermionic constraints, half of which generate kappa-symmetry, are obtained. Equations of motion are obtained in conformal invariant and background covariant manners.
description: 24 pages
Hard X-ray spectroscopy of the itinerant magnets $R$Fe$_{4}$Sb$_{12}$ ($R=$Na, K, Ca, Sr, Ba)
Creators: name: Mounssef, B.
name: Cantarino, M. R.
name: Bittar, E. M.
name: Germano, T. M.
name: Leithe-Jasper, A.
name: Garcia, F. A.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Ordered states in itinerant magnets may be related to magnetic moments displaying some weak local moment characteristics, as in intermetallic compounds hosting transition metal coordination complexes. In this paper, we report on the Fe $K$-edge X-ray absorption spectroscopy (XAS) of the itinerant magnets $R$Fe$_{4}$Sb$_{12}$ ($R=$ Na, K, Ca, Sr, Ba), aiming at exploring the electronic and structural properties of the octahedral building block formed by Fe and the Sb ligands. We find evidence for strong hybridization between the Fe $3d$ and Sb $5p$ states at the Fermi level, giving experimental support to previous electronic structure calculations of the $R$Fe$_{4}$Sb$_{12}$ skutterudites. The electronic states derived from Fe 3$d$ Sb $5p$ mixing are shown to be either more occupied and/or less localized in the cases of the magnetically ordered systems, for which $R=$ Na or K, connecting the local Fe electronic structure to the itinerant magnetic properties. Moreover, the analysis of the extended region of the XAS spectra (EXAFS) suggests that bond disorder may be a more relevant parameter to explain the suppression of the ferromagnetic ordered state in CaFe$_{4}$Sb$_{12}$ than the decrease of the density of states.
description: 7 pages, 5 figures, submitted
Hamiltonian structure of real Monge-Ampère equations
Creators: name: Nutku, Y.
Publisher: name: arXiv
Year: 1998
Subjects: subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: FOS: Physical sciences

description: The real homogeneous Monge-Ampère equation in one space and one time dimensions admits infinitely many Hamiltonian operators and is completely integrable by Magri's theorem. This remarkable property holds in arbitrary number of dimensions as well, so that among all integrable nonlinear evolution equations the real homogeneous Monge-Ampère equation is distinguished as one that retains its character as an integrable system in multi-dimensions. This property can be traced back to the appearance of arbitrary functions in the Lagrangian formulation of the real homogeneous Monge-Ampère equation which is degenerate and requires use of Dirac's theory of constraints for its Hamiltonian formulation. As in the case of most completely integrable systems the constraints are second class and Dirac brackets directly yield the Hamiltonian operators. The simplest Hamiltonian operator results in the Kac-Moody algebra of vector fields and functions on the unit circle.
description: published in J. Phys. A 29 (1996) 3257
Evaluation of Docker Containers for Scientific Workloads in the Cloud
Creators: name: Saha, Pankaj
name: Beltre, Angel
name: Uminski, Piotr
name: Govindaraju, Madhusudhan
Publisher: name: arXiv
Year: 2019
Subjects: subject: Performance (cs.PF)
subject: Distributed, Parallel, and Cluster Computing (cs.DC)
subject: FOS: Computer and information sciences

description: The HPC community is actively researching and evaluating tools to support execution of scientific applications in cloud-based environments. Among the various technologies, containers have recently gained importance as they have significantly better performance compared to full-scale virtualization, support for microservices and DevOps, and work seamlessly with workflow and orchestration tools. Docker is currently the leader in containerization technology because it offers low overhead, flexibility, portability of applications, and reproducibility. Singularity is another container solution that is of interest as it is designed specifically for scientific applications. It is important to conduct performance and feature analysis of the container technologies to understand their applicability for each application and target execution environment. This paper presents a (1) performance evaluation of Docker and Singularity on bare metal nodes in the Chameleon cloud (2) mechanism by which Docker containers can be mapped with InfiniBand hardware with RDMA communication and (3) analysis of mapping elements of parallel workloads to the containers for optimal resource management with container-ready orchestration tools. Our experiments are targeted toward application developers so that they can make informed decisions on choosing the container technologies and approaches that are suitable for their HPC workloads on cloud infrastructure. Our performance analysis shows that scientific workloads for both Docker and Singularity based containers can achieve near-native performance. Singularity is designed specifically for HPC workloads. However, Docker still has advantages over Singularity for use in clouds as it provides overlay networking and an intuitive way to run MPI applications with one container per rank for fine-grained resources allocation.
Spontaneous symmetry breaking of rapidly rotating stars in general relativity: influence of the 3D-shift vector
Creators: name: Bonazzola, S.
name: Frieben, J.
name: Gourgoulhon, E.
Publisher: name: arXiv
Year: 1997
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: An analytical scheme and a numerical method in order to study the effects of general relativity on the viscosity driven secular bar mode instability of rapidly rotating stars are presented. The approach consists in perturbing an axisymmetric and stationary configuration and studying its evolution by constructing a series of triaxial quasi-equilibrium configurations. These are obtained by solution of an approximate set of field equations where only the dominant non-axisymmetric terms are taken into account. The progress with respect to our former investigation consists in a higher relativistic order of the non-axisymmetric terms included into the computation, namely the fully three-dimensional treatment of the vector part of the space-time metric tensor as opposed to the scalar part, solely, in the former case. The scheme is applied to rotating stars built on a polytropic equation of state and compared to our previous results. The 3D-vector part turns out to inhibit the symmetry breaking efficiently. Nevertheless, the bar mode instability is still possible for an astrophysically relevant mass of M_ns=1.4 M_sun when a stiff polytropic equation of state with an adiabatic index of gamma=2.5 is employed. Triaxial neutron stars may be efficient emitters of gravitational waves and are thus potentially interesting sources for the forthcoming laser interferometric gravitational wave detectors such as LIGO, VIRGO and GEO600. From a numerical point of view, the solution of the three-dimensional minimal-distortion shift vector equation in spherical coordinates is an important achievement of our code.
description: 11 pages, LaTeX, 3 PostScript figures. Accepted for publication in Astronomy & Astrophysics
NWPU-MOC: A Benchmark for Fine-grained Multi-category Object Counting in Aerial Images
Creators: name: Gao, Junyu
name: Zhao, Liangliang
name: Li, Xuelong
Publisher: name: arXiv
Year: 2024
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: Object counting is a hot topic in computer vision, which aims to estimate the number of objects in a given image. However, most methods only count objects of a single category for an image, which cannot be applied to scenes that need to count objects with multiple categories simultaneously, especially in aerial scenes. To this end, this paper introduces a Multi-category Object Counting (MOC) task to estimate the numbers of different objects (cars, buildings, ships, etc.) in an aerial image. Considering the absence of a dataset for this task, a large-scale Dataset (NWPU-MOC) is collected, consisting of 3,416 scenes with a resolution of 1024 $\times$ 1024 pixels, and well-annotated using 14 fine-grained object categories. Besides, each scene contains RGB and Near Infrared (NIR) images, of which the NIR spectrum can provide richer characterization information compared with only the RGB spectrum. Based on NWPU-MOC, the paper presents a multi-spectrum, multi-category object counting framework, which employs a dual-attention module to fuse the features of RGB and NIR and subsequently regress multi-channel density maps corresponding to each object category. In addition, to modeling the dependency between different channels in the density map with each object category, a spatial contrast loss is designed as a penalty for overlapping predictions at the same spatial position. Experimental results demonstrate that the proposed method achieves state-of-the-art performance compared with some mainstream counting algorithms. The dataset, code and models are publicly available at https://github.com/lyongo/NWPU-MOC.
Transformations on the set of all n-dimensional subspaces of a Hilbert space preserving principal angles
Creators: name: Molnar, Lajos
Publisher: name: arXiv
Year: 2000
Subjects: subject: Functional Analysis (math.FA)
subject: Mathematical Physics (math-ph)
subject: Operator Algebras (math.OA)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: Wigner's classical theorem on symmetry transformations plays a fundamental role in quantum mechanics. It can be formulated, for example, in the following way: Every bijective transformation on the set L of all 1-dimensional subspaces of a Hilbert space H which preserves the angle between the elements of L is induced by either a unitary or an antiunitary operator on H. The aim of this paper is to extend Wigner's result from the 1-dimensional case to the case of n-dimensional subspaces of H with n fixed.
description: 20 pages. To appear in Commun. Math. Phys
A novel algorithm for segmentation of leukocytes in peripheral blood
Creators: name: Cao, Haichao
name: Liu, Hong
name: Song, Enmin
Publisher: name: arXiv
Year: 2019
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: In the detection of anemia, leukemia and other blood diseases, the number and type of leukocytes are essential evaluation parameters. However, the conventional leukocyte counting method is not only quite time-consuming but also error-prone. Consequently, many automation methods are introduced for the diagnosis of medical images. It remains difficult to accurately extract related features and count the number of cells under the variable conditions such as background, staining method, staining degree, light conditions and so on. Therefore, in order to adapt to various complex situations, we consider RGB color space, HSI color space, and the linear combination of G, H and S components, and propose a fast and accurate algorithm for the segmentation of peripheral blood leukocytes in this paper. First, the nucleus of leukocyte was separated by using the stepwise averaging method. Then based on the interval-valued fuzzy sets, the cytoplasm of leukocyte was segmented by minimizing the fuzzy divergence. Next, post-processing was carried out by using the concave-convex iterative repair algorithm and the decision mechanism of candidate mask sets. Experimental results show that the proposed method outperforms the existing non-fuzzy sets methods. Among the methods based on fuzzy sets, the interval-valued fuzzy sets perform slightly better than interval-valued intuitionistic fuzzy sets and intuitionistic fuzzy sets.
description: 25 pages, 10 figures
Discrete and Continuous Linearizable Equations
Creators: name: Lafortune, S.
name: Grammaticos, B.
name: Ramani, A.
Publisher: name: arXiv
Year: 1998
Subjects: subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: FOS: Physical sciences

description: We study the projective systems in both continuous and discrete settings. These systems are linearizable by construction and thus, obviously, integrable. We show that in the continuous case it is possible to eliminate all variables but one and reduce the system to a single differential equation. This equation is of the form of those singled-out by Painlevé in his quest for integrable forms. In the discrete case, we extend previous results of ours showing that, again by elimination of variables, the general projective system can be written as a mapping for a single variable. We show that this mapping is a member of the family of multilinear systems (which is not integrable in general). The continuous limit of multilinear mappings is also discussed.
description: Plain Tex file, 14 pages, no figure
Sustainable Screens
Creators: name: Sze, Samuel
Publisher: name: The University of British Columbia
Year: 2010

description: Disclaimer: “UBC SEEDS provides students with the opportunity to share the findings of their studies, as well as their opinions, conclusions and recommendations with the UBC community. The reader should bear in mind that this is a student project/report and is not an official document of UBC. Furthermore readers should bear in mind that these reports may not reflect the current status of activities at UBC. We urge you to contact the research persons mentioned in a report or the SEEDS Coordinator about the current status of the subject matter of a project/report.”
Towards resolving the metamorphic enigma of the Indian Plate in the NW Himalaya of Pakistan
Creators: name: Treloar, Peter J.
name: Palin, Richard M.
name: Searle, Michael P.
Publisher: name: Geological Society of London
Year: 2019
Subjects: subject: Geology
subject: FOS: Earth and related environmental sciences

description: Full thin section photomicrograph images of samples (a) 166, plane-polarized light, (b) 166 crossed-polarized light, (c) 167, plane-polarized light, (d) 167 crossed-polarized light, (e) N151, plane-polarized light, (f) N151 crossed-polarized light. Field of view in all cases in ~30 mm along the long axis.
On Non-Commutative Orbifolds of K3 Surfaces
Creators: name: Belhaj, A.
name: Manjarin, J. J.
name: Resco, P.
Publisher: name: arXiv
Year: 2002
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Using the algebraic geometry method of Berenstein and Leigh for the construction of the toroidal orbifold (T^2 x T^2 x T^2) / (Z_2 x Z_2) with discrete torsion and considering local K3 surfaces, we present non-commutative aspects of the orbifolds of product of K3 surfaces. In this way, the ordinary complex deformation of K3 can be identified with the resolution of stringy singularities by non-commutative algebras using crossed products. We give representations and make some comments regarding the fractionation of branes. Illustrating examples are presented.
description: 23 pages
Superposition of Weyl solutions: The equilibrium forces
Creators: name: Letelier, Patricio. S.
name: Oliveira, Samuel R.
Publisher: name: arXiv
Year: 1997
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Solutions to the Einstein equation that represent the superposition of static isolated bodies with axially symmetry are presented. The equations nonlinearity yields singular structures (strut and membranes) to equilibrate the bodies. The force on the strut like singularities is computed for a variety of situations. The superposition of a ring and a particle is studied in some detail
description: 31 pages, 7 figures, psbox macro. Submitted to Classical and Quantum Gravity
title: Braunschweigische Anzeigen : offizielles Regierungs- und Anzeigeblatt. 10. Jahr 1754
Creators: name: :None
Publisher: name: Waisenhaus
Year: 1754
Subjects: subject: Brunsvicensien der Universitätsbibliothek Braunschweig
subject: Braunschweigische Anzeigen
subject: 902

description: Braunschweigische Anzeigen: offizielles Regierungs- und Anzeigeblatt, vol. 10. 1754
The role of circadian-regulated genes in Drosophila behavior
Creators: Pantalia, Meghan
Publisher: name: Columbia University
Year: 2020
Subjects: subject: Neurosciences
subject: FOS: Clinical medicine
subject: Genetics
subject: FOS: Biological sciences
subject: Circadian rhythms
subject: Neurons
subject: Neurotransmitters
subject: Drosophila--Genetics

description: A central question in neuroscience is to identify the roles of genes in behavior. A deeper understanding of genetic influences on behavior would provide insight into the relative impact of innate vs. environmental influences on behavior, as well as improve treatments for neurological diseases. To elucidate the role of genes in behavior, we must not only identify specific genes involved, but also determine the cell types in which they act and the mechanisms by which they exert their influence. In Chapter 2 of this thesis, I found that circadian genes comprising the circadian clock were not necessary in “master clock neurons”, or Pdf+ neurons, for circadian locomotor rhythms. I also identified a small subset of neurons in which disruption of these circadian genes completely abolishes Drosophila circadian behavior. In Chapter 3, I describe the role of a glial gene, ebony, in the regulation of Drosophila courtship and sleep behavior. In addition to identifying the cell types in which ebony acts to regulate these behaviors, I also provide insight into the underlying mechanism of neurotransmitter modulation. The results in this chapter highlight the consideration of non-neuronal cells in the brain when examining the roles of genes in behavior. Together, the results in Chapter 2 and 3 further our understanding of how genes in small populations of cells influence a myriad of conserved Drosophila behaviors.
Roundup at UBC: The Road to a Pesticide Free Campus at UBC
Creators: name: Durbin, Prentice
name: Fa, Frank
name: Kennedy, Meredith
name: Li, Christina
name: Potvin, Brett
name: Suedhoff, Uli Schulze
Publisher: name: The University of British Columbia
Year: 2010

description: Disclaimer: “UBC SEEDS provides students with the opportunity to share the findings of their studies, as well as their opinions, conclusions and recommendations with the UBC community. The reader should bear in mind that this is a student project/report and is not an official document of UBC. Furthermore readers should bear in mind that these reports may not reflect the current status of activities at UBC. We urge you to contact the research persons mentioned in a report or the SEEDS Coordinator about the current status of the subject matter of a project/report.”
Non Abelian Magnetic Monopoles and Dynamics of Confinement
Creators: name: Bolognesi, Stefano
name: Konishi, Kenichi
Publisher: name: arXiv
Year: 2002
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Magnetic monopoles having non-Abelian charges have been found recently to play a crucial role in the infrared in a class of supersymmetric gauge theories. We argue that these "dual quarks" can naturally be identified with the non-Abelian magnetic monopoles of the type first discussed by Goddard, Nuyts and Olive. Our argument is based on a few simple observations as regards to their charge structure, flavor quantum numbers, and some general properties of electromagnetic duality.
description: 12 pages, Latex
title: Braunschweigische Anzeigen : offizielles Regierungs- und Anzeigeblatt. 11. Jahr 1755
Creators: name: :None
Publisher: name: Waisenhaus
Year: 1755
Subjects: subject: Brunsvicensien der Universitätsbibliothek Braunschweig
subject: Braunschweigische Anzeigen
subject: 902

description: Braunschweigische Anzeigen: offizielles Regierungs- und Anzeigeblatt, vol. 11. 1755
Boundary-limited and glassy-like phonon thermal conduction in EtMe$_3$Sb[Pd(dmit)$_2$]$_2$
Creators: name: Yamashita, Minoru
Publisher: name: arXiv
Year: 2019
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: In molecular-based quantum-spin-liquid candidate EtMe$_3$Sb[Pd(dmit)$_2$]$_2$ with two-dimensional $S$=1/2 triangular lattice, a finite residual linear term in the thermal conductivity, $κ_0/T\equivκ/T (T \rightarrow 0)$, has been observed and attributed to the presence of itinerant gapless excitations. Here we show that the data of $κ$ measured in several single crystals are divided into two groups with and without the residual linear term. In the first group with finite $κ_0/T$, the phonon thermal conductivity $κ_{ph}$ is comparable to that of other organic compounds. In these crystals, the phonon mean free path $\ell_{ph}$ saturates at low temperatures, being limited by sample size. On the other hand, in the second group with zero $κ_0/T$, $κ_{ph}$ is one order of magnitude smaller than that in the first group, comparable to that of amorphous solids. In contrast to the first group, $\ell_{ph}$ shows a glassy-like non-saturating behavior at low temperatures. These results suggest that the crystals with long $\ell_{ph}$ are required to discuss the magnetic excitations by thermal conductivity measurements.
description: 4 pages, 3 figures
Additional file 1 of Predictors of mortality in patients with coronavirus disease 2019: a systematic review and meta-analysis
Creators: name: Shi, Changcheng
name: Wang, Limin
name: Ye, Jian
name: Gu, Zhichun
name: Wang, Shuying
name: Xia, Junbo
name: Xie, Yaping
name: Li, Qingyu
name: Xu, Renjie
name: Lin, Nengming
Publisher: name: figshare
Year: 2021
Subjects: Medicine
Biological Sciences not elsewhere classified
Mathematical Sciences not elsewhere classified
Cancer

description: Additional file 1.
The mechanical and electrical properties of direct-spun carbon nanotube mat-epoxy composites
Creators: name: Tan, Wei
name: Stallard, Joe C.
name: Smail, Fiona R.
name: Boies, Adam M.
name: Fleck, Norman A.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Applied Physics (physics.app-ph)
subject: FOS: Physical sciences

description: Composites of direct-spun carbon nanotube (CNT) mats and epoxy are manufactured and tested in order to determine their mechanical and electrical properties. The mats are spun directly from a floating catalyst, chemical vapour deposition reactor. The volume fraction of epoxy is varied widely by suitable dilution of the epoxy resin with acetone. Subsequent evaporation of the acetone, followed by a cure cycle, leads to composites of varying volume fraction of CNT, epoxy and air. The modulus, strength, electrical conductivity and piezoresistivity of the composites are measured. The CNT mats and their composites exhibit an elastic-plastic stress-strain response under uniaxial tensile loading, and the degree of anisotropy is assessed by testing specimens in 0°, 45° and 90° directions with respect to the draw direction of mat manufacture. The electrical conductivity scales linearly with CNT volume fraction, irrespective of epoxy volume fraction. In contrast, the modulus and strength depend upon both CNT and epoxy volume fractions in a non-linear manner. The macroscopic moduli of the CNT mat-epoxy composites are far below the Voigt bound based on the modulus of CNT walls and epoxy. A micromechanical model is proposed to relate the macroscopic modulus and yield strength of a CNT mat-epoxy composite to the microstructure.
Structure function of passive scalars in two-dimensional turbulence
Creators: name: Eckhardt, Bruno
name: Schumacher, Joerg
Publisher: name: arXiv
Year: 1999
Subjects: subject: Chaotic Dynamics (nlin.CD)
subject: FOS: Physical sciences

description: The structure function of a scalar $θ({\bf x},t)$, passively advected in a two-dimensional turbulent flow ${\bf u}({\bf x},t)$, is discussed by means of the fractal dimension $δ^{(1)}_g$ of the passive scalar graph. A relation between $δ^{(1)}_g$, the scaling exponent $ζ_1^{(θ)}$ of the scalar structure function $D_1^{(θ)}(r)$, and the structure function D_2(r) of the underlying flow field is derived. Different from the 3-d case, the 2-d structure function also depends on an additional parameter, characteristic of the driving of the passive scalar. In the enstrophy inertial subrange a mean field approximation for the velocity structure function gives a scaling of the passive scalar graph with $δ^{(1)}_g<2$ for intermediate and large values of the Prandtl number Pr. In the energy inertial subrange a model for the energy spectrum and thus D_2(r) gives a passive scalar graph scaling with exponent $δ^{(1)}_g={5/3}$. Finally, we discuss an application to recent observations of scalar dispersion in non-universal 2-d flows.
description: 9 pages, 8 figures
Rotating Topological Black Holes
Creators: name: Klemm, D.
name: Moretti, V.
name: Vanzo, L.
Publisher: name: arXiv
Year: 1997
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: A class of metrics solving Einstein's equations with negative cosmological constant and representing rotating, topological black holes is presented. All such solutions are in the Petrov type-$D$ class, and can be obtained from the most general metric known in this class by acting with suitably chosen discrete groups of isometries. First, by analytical continuation of the Kerr-de Sitter metric, a solution describing uncharged, rotating black holes whose event horizon is a Riemann surface of arbitrary genus $g > 1$, is obtained. Then a solution representing a rotating, uncharged toroidal black hole is also presented. The higher genus black holes appear to be quite exotic objects, they lack global axial symmetry and have an intricate causal structure. The toroidal blackholes appear to be simpler, they have rotational symmetry and the amount of rotation they can have is bounded by some power of the mass.
description: 25 pages, LateX, five ps figures added, minor errors corrected, addition of new references, improved discussion of the conserved charges
Reflecting on naked singularities: iron line fitting as a probe of the cosmic censorship conjecture
Creators: name: Mummery, Andrew
name: Ingram, Adam
Publisher: name: arXiv
Year: 2024
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We demonstrate that the X-ray iron line fitting technique can be leveraged as a powerful probe of the cosmic censorship conjecture. We do this by extending existing emission line models to arbitrary spin parameters of the Kerr metric, no longer restricted to black hole metrics with $|a_\bullet |< 1$. We show that the emission lines from naked singularity metrics ($|a_\bullet| > 1$) show significant differences to their black hole counterparts, even for those metrics with identical locations of the innermost stable circular orbit, i.e., emission line fitting does not suffer from the degeneracy which affects continuum fitting approaches. These differences are entirely attributable to the disappearance of the event horizon for $|a_\bullet| > 1$. We highlight some novel emission line features of naked singularity metrics, such as ``inverted'' emission lines (with sharp red wings and extended blue wings) and ``triple lines''. The lack of detection of any of these novel features provides support of the cosmic censorship conjecture. We publicly release {\tt XSPEC} packages {\tt skline} and {\tt skconv} which can now be used to probe the cosmic censorship conjecture in Galactic X-ray binaries and Active Galactic Nuclei. The inclusion of super-extremal spacetimes can be alternatively posed as a way of stress-testing conventional models of accretion.
description: Version accepted in MNRAS. 11 pages, 12 figures. XSPEC models available at https://github.com/andymummeryastro/superkerrline
title: Braunschweigische Anzeigen : offizielles Regierungs- und Anzeigeblatt. 12. Jahr 1756
Creators: name: :None
Publisher: name: Waisenhaus
Year: 1756
Subjects: subject: Brunsvicensien der Universitätsbibliothek Braunschweig
subject: Braunschweigische Anzeigen
subject: 902

description: Braunschweigische Anzeigen: offizielles Regierungs- und Anzeigeblatt, vol. 12. 1756
title: Braunschweigische Anzeigen : offizielles Regierungs- und Anzeigeblatt. 13. Jahr 1757
Creators: name: :None
Publisher: name: Waysenhaus
Year: 1757
Subjects: subject: Brunsvicensien der Universitätsbibliothek Braunschweig
subject: Braunschweigische Anzeigen
subject: 902

description: Braunschweigische Anzeigen: offizielles Regierungs- und Anzeigeblatt, vol. 13. 1757
Location optimization of municipal solid waste considering health, safety, environmental, and economic factors
Creators: name: Azadeh, Ali
name: Kimia Ahmadzadeh
name: Eslami, Hossein
Publisher: name: Taylor & Francis
Year: 2019
Subjects: subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: 19999 Mathematical Sciences not elsewhere classified
subject: FOS: Mathematics
subject: Science Policy
subject: Computational Biology

description: Selecting appropriate sites for municipal solid waste (MSW) is a challenging problem for urban communities and has economic and environmental implications. This paper proposes a mathematical optimization model to solve the location problem of MSW sites incorporating both push and pull characteristics. Four objective functions comprising health, safety, environmental (HSE), and economic indicators are considered. These objectives are combined into a single objective function using the weighted sum method and the best method is selected based on noise analysis. The parameter uncertainty is incorporated into the model using expert judgments followed by sensitivity analysis to show the effect of the most important parameters. Using the data from a network of 360 population centers in Tehran, the solution for the model is demonstrated. To our knowledge, this is the first study on location optimization of MSW considering combined HSE and economic indicators. The proposed approach is flexible and parsimonious.
Kepler Data Validation II -- Transit Model Fitting and Multiple-Planet Search
Creators: name: Li, Jie
name: Tenenbaum, Peter
name: Twicken, Joseph D.
name: Burke, Christopher J.
name: Jenkins, Jon M.
name: Quintana, Elisa V.
name: Rowe, Jason F.
name: Seader, Shawn E.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: This paper discusses the transit model fitting and multiple-planet search algorithms and performance of the Kepler Science Data Processing Pipeline, developed by the Kepler Science Operations Center (SOC). Threshold Crossing Events (TCEs), which are transit candidate events, are generated by the Transiting Planet Search (TPS) component of the pipeline and subsequently processed in the Data Validation (DV) component. The transit model is used in DV to fit TCEs in order to characterize planetary candidates and to derive parameters that are used in various diagnostic tests to classify them. After the signature associated with the TCE is removed from the light curve of the target star, the residual light curve goes through TPS again to search for additional TCEs. The iterative process of transit model fitting and multiple-planet search continues until no TCE is generated from the residual light curve or an upper limit is reached. The transit model fitting and multiple-planet search performance of the final release (9.3, January 2016) of the pipeline is demonstrated with the results of the processing of 4 years (17 quarters) of flight data from the primary Kepler Mission. The transit model fitting results are accessible from the NASA Exoplanet Archive. The final version of the SOC codebase is available through GitHub.
description: 52 pages, 24 figures
Intersecting Branes in M-Theory and Chiral Matter in Four Dimensions
Creators: name: Doran, Charles F.
name: Faux, Michael
Publisher: name: arXiv
Year: 2002
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We explicitly derive a complementary pair of four-dimensional M-theory brane-world models, linked by a five-dimensional bulk, each of which has a unique anomaly-free chiral spectrum. This is done via resolution of local consistency requirements, in the context of the simplest global quotient T7/G with ten-dimensional fixed-planes, for which a chiral four-dimensional spectrum could arise.
description: 34 pages with 11 postscript figures; references and clarifications added; M-Orbifold scan amended to include six previously-omitted cases
title: Reporting Universitätsbibliothek Braunschweig: Report 2014: Berichtszeitraum: 01.01.2014 bis 31.12.2014
Creators: name: :None
Publisher: name: Technische Universität Braunschweig
Year: 2015
Subjects: subject: Technische Universität Braunschweig
subject: Brunsvicensien der Universitätsbibliothek Braunschweig
subject: 379

description: Reporting Universitätsbibliothek Braunschweig, vol. 2014
The revenge of the Bantamese : factors for change in the Cocos (Keeling) Islands, 1930-1978
Creators: name: Hunt, John G.
Publisher: name: The Australian National University
Year: 1989

description: In November 1985, John Cecil Clunies-Ross left the Cocos (Keeling) Islands to reside in Perth, Western Australia, after almost 40 years' residence in the Islands. During most of that time, he had been in control of the economic destiny of the Cocos Malays of Horne Island. The Australian media had called him the "King of Cocos", but his political authority over the Islanders had been eroded over several years by the increasing involvement of the Australian Government in Cocos affairs, culminating in the purchase of Clunies-Ross's land and assets in 1978 for $6.25 million. There had, however, been weaknesses in the economic and political domination of the Cocos Malay people by the CluniesRoss family, weaknesses that had existed for many years beforehand. It is important to see the breakdown of CluniesRoss rule in terms that give due weight to long-term processes. This approach has the added advantage of teaching us about the Cocos Malay community itself. In terms of approach, this thesis, unlike previous research, does not treat the Clunies-Rosses and Government as the only active pla1ers on Cocos. I show that the momentum of events was also determined to a considerable extent by developments within the Home Island community itself. I give due weight to the social dynamics of the Cocos Malay community in bringing about the collapse of Clunies-Ross rule, and point out that, at significant points, notably times of economic hardship, there were three players in the game, although the final resolution in 1978 was between Tuan John and the Australian Government. My research approach has made this explanation possible. Together with more conventional historical and anthropological materials, I have made use of oral accounts by Cocos Malay elders who lived through the events described in the thesis. My supervisor, Dr Milner, directed my attention to mainstream Malay culture in the Peninsula and the Archipelago. There I found the roots of Cocos Malay political culture, and came to grips with the sometimes quite significant differences in religious and social practice between Cocos and the wider Malay world of the twentieth century. Within the conditions set out in a "social contract" between the Cocos people and the Clunies-Ross family in 1837, the family shaped a society that bore a number of likenesses to a traditional nineteenth century Malay state. Their rule provided food, clothing, shelter and protection for all, under a system of total political and economic dominance by the family. Under George Clunies-Ross (who ruled 1871-1910), social and economic control was attained through isolation of the Cocos Malays, a closed economy, use of indentured labour from the