cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
In the Shadow of the White Man's Burden: Black Americans and the Philippines, 1898-1903
Creators: Dentler, Jonathan
Publisher: name: Columbia University
Year: 2011
Subjects: African Americans
History

description: This thesis first examines the ideological commitments that went into forging the Black Imperial. It explains the forces that gave rise to the plan to use black soldiers in the war and to subsequently settle the islands with the black American population. The second section then turns to the situation in the Philippines to examine in detail why the plan failed. The second section will also argue that despite the nominal failure of the 'Black Imperial' idea to achieve its stated goals, it 'succeeded' in providing an opportunity to enact race and to regulate Victorian domesticity. Finally, this paper will suggest that the failure of the Black Imperial plan was part of a movement within black politics away from racial uplift and toward a more antagonistic anti-racist and anti- imperialist politics. Scholars have often understood this political transformation as the move from Booker T. Washington and the Tuskegee machine toward W.E.B. Du Bois and the NAACP, though this formula has many problems. Nonetheless, by examining print media, political and theoretical writings from black intellectuals, and literature from the time, I hope to show a connection between the involvement of black Americans in the Philippines and a certain drift toward radicalism in black politics that took place early in the twentieth century. Scholarly work has traditionally understood this drift within a national or Atlantic context, ignoring the fact that it occurred against the backdrop of a colonial war in the Pacific in which the notion of 'race' played a central role. The course of black politics during these years was intimately related to Pacific developments and their racial politics.
In the Shadow of the Family Tree: Narrating Family History in Väterliteratur and the Generationenromane
Creators: Cameron, Jennifer Susan
Publisher: name: Columbia University
Year: 2012
Subjects: German literature

description: While debates over the memory and representation of the National Socialist past have dominated public discourse in Germany over the last forty years, the literary scene has been the site of experimentation with the genre of the autobiography, as authors developed new strategies for exploring their own relationship to the past through narrative. Since the late 1970s, this experimentation has yielded a series of autobiographical novels which focus not only on the authors' own lives, but on the lives and experiences of their family members, particularly those who lived during the NS era. In this dissertation, I examine the relationship between two waves of this autobiographical writing, the Väterliteratur novels of the late 1970s and 1980s in the BRD, and the current trend of multi-generational family narratives which began in the late 1990s. In a prelude and three chapters, this dissertation traces the trajectory from Väterliteratur to the Generationenromane through readings of Bernward Vesper's Die Reise (1977), Christoph Meckel's Suchbild. Über meinen Vater (1980), Ruth Rehmann's Der Mann auf der Kanzel (1979), Uwe Timm's Am Beispiel meines Bruders (2003), Stephan Wackwitz's Ein unsichtbares Land (2003), Monika Maron's Pawels Briefe (1999), and Barbara Honigmann's Ein Kapitel aus meinem Leben (2004). I read these texts as examples of genealogical writing, in which protagonists seek to position themselves in relation to their family histories through the construction of family narrative. The formal similarities between the two trends - (inter)textual dialogue, hybridity of prose style, vignette or essayistic structure - cast their underlying differences into greater relief. While the author-narrators of Väterliteratur seek to reach a definitive conclusion regarding the question of the father's complicity in Nazism, the authors of Generationenromane allow for greater nuance in categories such as victim and perpetrator. In both cases, however, the subjectivity of the individual protagonist shapes his or her engagement of the family past, as they seek to negotiate between personal family relationships and public discourses of collective memory in contemporary Germany.
Envelope solitons induced by high-order effects of light-plasma interaction
Creators: name: Shukla, P. K.
name: Fedele, R.
name: Onorato, M.
name: Tsintsadze, N. L.
Publisher: name: arXiv
Year: 2002
Subjects: subject: Pattern Formation and Solitons (nlin.PS)
subject: FOS: Physical sciences

description: The nonlinear coupling between the light beams and non-resonant ion density perturbations in a plasma is considered, taking into account the relativistic particle mass increase and the light beam ponderomotive force. A pair of equations comprising a nonlinear Schrodinger equation for the light beams and a driven (by the light beam pressure) ion-acoustic wave response is derived. It is shown that the stationary solutions of the nonlinear equations can be represented in the form of a bright and dark/gray soliton for one-dimensional problem. We have also present a numerical analysis which shows that our bright soliton solutions are stable exclusively for the values of the parameters compatible with of our theory.
description: 9 pages, 5 figures
Vector Sheaves Associated with Principal Sheaves
Creators: name: Vassiliou, E.
Publisher: name: arXiv
Year: 1998
Subjects: subject: Differential Geometry (math.DG)
subject: FOS: Mathematics
subject: 53C05, 58A40, 18F20

description: In the framework of Abstract Differential Geometry, we show that to a given principal sheaf and a representation of its stuctural sheaf in $A^n$, where A is a sheaf of associative, commutative, unital algebras (over R or C), we associate a vector sheaf. Moreover, under some natural assumptions on the compatibility of the representation with the Maurer-Cartan (or, logarithmic) differentials of the structural sheaves involved, we also show that the connections of the principal sheaf induce A-connections of the associated vector sheaf. We thus recover a result of the classical Differential Geometry within a purely algebro-topological context, without any smoothness assumption.
description: LaTeX, 11 pages, to be published in the Proceedings of the 2nd Conference of Balkan Soc. of Geometers, Thessaloniki, 1998
title: Heliotropium ramosissimum (Lehm.) DC.
Creators: name: :None
Publisher: name: Universitätsbibliothek
Year: 2009
Subjects: subject: Digitale Pflanzenbilder : Sammlung Dietmar Brandes
subject: 580

description: Pflanzensammlung Dietmar Brandes: Digitale Pflanzenbilder
In the Trenches: The Local Politics of Civic Education
Creators: Mantas-Kourounis, Eleni M.
Publisher: name: Columbia University
Year: 2021
Subjects: subject: Education and state
subject: School management and organization
subject: Political science
subject: FOS: Political science
subject: Civics

description: Civic education is once again at the center of education policy debates. Over the past five years, policy reform has been enacted in 46 states and, with some exceptions, has consisted of states embracing two initiatives: the College, Career, and Civic Life Framework for Social Studies (C3) and the Civic Education Initiative (CEI). Both initiatives were born out of sustained advocacy efforts of nonprofit organizations responding to a perceived marginalization of civic education as state and national education policies became more narrowly focused on testing, math, and literacy. They offer competing visions of civic education with the C3 focusing on inquiry, skills, and dispositions and the CEI on content and testing. Both aim to enhance civic outcomes of students and come at a time of high polarization in American politics when many view civic education as a possible solution to the erosion of democratic ideals. The dissertation examines what, if anything, happened when these state mandates hit the local level. It mobilizes a theoretical framework based on policy feedback and a qualitative research design to analyze the implementation and sustainability of civic education policies in school districts in Utah and Connecticut. It finds that in both states implementation of the policies varied between and, in some cases within, the school districts, but policy sustainability was challenged only in Utah. The varied implementation outcomes are attributed primarily to how willing teachers were to implement the policies, while the varied sustainability outcomes stem from differences in policy design and that school districts in Utah were asked to respond to dual, conflicting mandates. The findings suggest that school districts operate in institutional contexts that leave them room to ignore or superficially respond to state mandates. The findings also suggest that teachers react differently to legislative initiatives than to those coming from state education officials with the former more likely to be seen as top-down mandates to be ignored or resisted. Finally, the findings demonstrate that sustainable policy outcomes are not always equitable, suggesting that those looking to civic education policies to foster equitable civic outcomes, may have to look elsewhere.
In the Vernacular: Indonesian Women’s Rights Activists Challenging the Anti-Pornography Bill
Creators: Hellman, Isabel
Publisher: name: Columbia University
Year: 2019
Subjects: Human rights
Women political activists
Human rights workers
Pornography--Law and legislation
Human rights--Cross-cultural studies

description: In 2005, the Bill against Pornography and Porno-Action was reintroduced to the Indonesian parliament. Central to the opposition of this bill were women’s human rights groups, including: The National Commission on Violence Against Women (Komnas Perempuan), the Legal Aid Institute of Indonesian Women’s Association (LBH APIK), and the Women’s Journal Foundation (Yayasan Jurnal Perempuan). Through interviews with key members of these organizations and an analysis of their public statements, this study will argue that, in their campaign against the anti-pornography bill, Indonesian women’s human rights activists undertook what Peggy Levitt and Sally Merry term a “vernacularization” of human rights norms. Given the stigmatization of human rights in Indonesia as foreign-influenced and anti-Islam, this vernacularization necessarily involved infusing human rights principles with the rhetoric of the national ideology of Pancasila and the 1945 Constitution. This strategy was successful in its ability to gain substantial public attention that led to revisions of the bill and a display of the women’s movement political power. However, the efforts ultimately failed to block the passing of the bill, and were limited in their ability to harness international political power and to offer a significant challenge to the status quo. Understanding the process of this vernacularization and its consequences is vital to comprehending how human rights can be implemented in distinct contexts.
Single-step multipartite entangled states generation from coupled circuit cavities
Creators: name: Mo, Xiao-Tao
name: Xue, Zheng-Yuan
Publisher: name: arXiv
Year: 2019
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Green-Horne-Zeilinger states are a typical type of multipartite entangled states, which plays a central role in quantum information processing. For the generation of multipartite entangled states, the single-step method is more preferable as the needed time will not increase with the increasing of the qubit number. However, this scenario has a strict requirement that all the two-qubit interaction strengths should be the same, or the generated state will be of low quality. Here, we propose a scheme for generating multipartite entangled states of superconducting qubits, from a coupled circuit cavities scenario, where we rigorously achieve the requirement via adding an extra z-direction ac classical field for each qubit, leading the individual qubit-cavity coupling strength to be tunable in a wide range, and thus can be tuned to the same value. Meanwhile, in order to obtain our wanted multi-qubits interaction, x-direction ac classical field for each qubit is also introduced. By selecting the appropriate parameters, we numerically shown that high-fidelity multi-qubit GHZ states can be generated. In addition, we also show that the coupled cavities scenario is better than a single cavity case. Therefore, our proposal represents a promising alternative for multipartite entangled states generation.
T=0 Partition Functions for Potts Antiferromagnets on Moebius Strips and Effects of Graph Topology
Creators: name: Shrock, Robert
Publisher: name: arXiv
Year: 1999
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: High Energy Physics - Lattice (hep-lat)
subject: Combinatorics (math.CO)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: We present exact calculations of the zero-temperature partition function of the $q$-state Potts antiferromagnet (equivalently the chromatic polynomial) for Moebius strips, with width $L_y=2$ or 3, of regular lattices and homeomorphic expansions thereof. These are compared with the corresponding partition functions for strip graphs with (untwisted) periodic longitudinal boundary conditions.
description: 9 pages, Latex, Phys. Lett. A, in press
Application of modelling and subaqueous tailings disposal to the Mt. Milligan mine
Creators: name: Killam, R. G.
name: Robertson, J. D.
Publisher: name: The University of British Columbia
Year: 2010

description: As a part of a comprehensive acid drainage assessment program, extensive ABA testwork was performed which allowed subsequent geostatistical analyses and modelling of the spatial distribution of the mine rock NNP character. The objective was to identify spatial anomalies of acid generation characteristics for application to mine planning. Mine plans were then prepared which would allow waste and low grade to be sorted by their NNP values and placed in dumps which were situated to allow material with ARD potential to be managed by an optimized control strategy. The ABA data for ore was incorporated with the metallurgical testwork data to calculate NNP values for the tailings. This information allowed a design to be developed which would maintain separate cleaner and rougher tailings discharge streams to the tailings disposal facility. Subaqueous tailings disposal methods were planned to isolate the potentially reactive cleaner tailings materials in a permanently flooded pond within the main tailings basin. A conventional spigotting method could then be used for the nonreactive majority of the tailings materials.
Gravitational kinks in two spacetime dimensions
Creators: name: Vasilic, M.
name: Vukasinac, T.
Publisher: name: arXiv
Year: 1996
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: The properties of gravitational kinks are studied within some simple models of two dimensional gravity. In spacetimes of cylindrical topology we prove the existence of kinks of constant curvature with arbitrary kink numbers. In $R^1\times R^1$ spacetimes $m=1$ kink solutions of the equation $R=0$ are found, whereas $|m|>1$ flat kinks are proved not to exist. We give a detailed analysis of the behaviour of gravitational kinks under coordinate transformations. Viewed as nonsingular black holes $|m|>1$ kink solutions are found within a simple dilaton gravity theory. The general form of the potential function is determined from the demand that the theory possesses an arbitrary number of inequivalent kink configurations.
description: 14 pages, Plain Tex, 4 figures (available from the authors)
Observing the Symmetry of Attractors
Creators: name: Schenker, Jeffrey H.
name: Swift, James W.
Publisher: name: arXiv
Year: 1997
Subjects: subject: Chaotic Dynamics (nlin.CD)
subject: FOS: Physical sciences

description: We show how the symmetry of attractors of equivariant dynamical systems can be observed by equivariant projections of the phase space. Equivariant projections have long been used, but they can give misleading results if used improperly and have been considered untrustworthy. We find conditions under which an equivariant projection generically shows the correct symmetry of the attractor.
description: 28 page LaTeX document with 9 ps figures included. Supplementary color figures available at http://odin.math.nau.edu/~jws/
Scale by scale budget and similarity laws for shear turbulence
Creators: name: Casciola, C. M.
name: Gualtieri, P.
name: Benzi, R.
name: Piva, R.
Publisher: name: arXiv
Year: 2002
Subjects: subject: Chaotic Dynamics (nlin.CD)
subject: FOS: Physical sciences

description: Turbulent shear flows, such as those occurring in the wall region of turbulent boundary layers, manifest a substantial increase of intermittency with respect to isotropic conditions. This suggests a close link between anisotropy and intermittency. However, a rigorous statistical description of anisotropic flows is, in most cases, hampered by the inhomogeneity of the field. This difficulty is absent for the homogeneous shear flow. For this flow the scale by scale budget is discussed here by using the appropriate form of the Karman-Howarth equation, to determine the range of scales where the shear is dominant. The issuing generalization of the four-fifths law is then used as the guideline to extend to shear dominated flows the Kolmogorov-Obhukhov theory of intermittency. The procedure leads naturally to the formulation of generalized structure functions and the description of intermittency thus obtained reduces to the K62 theory for vanishing shear. Also here the intermittency corrections to the scaling exponents are carried by the moments of the coarse grained energy dissipation field. Numerical experiments give indications that the dissipation field is statistically unaffected by the shear, thereby supporting the conjecture that the intermittency corrections are universal. This observation together with the present reformulation of the theory gives reason for the increased intermittency observed in the classical longitudinal velocity increments.
description: 10 pages, 4 figures
Adding and multiplying random matrices: a generalization of Voiculescu's formulae
Creators: name: Zinn-Justin, P.
Publisher: name: arXiv
Year: 1998
Subjects: subject: Mathematical Physics (math-ph)
subject: Condensed Matter (cond-mat)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: In this paper, we give an elementary proof of the additivity of the functional inverses of the resolvents of large $N$ random matrices, using recently developed matrix model techniques. This proof also gives a very natural generalization of these formulae to the case of measures with an external field. A similar approach yields a relation of the same type for multiplication of random matrices.
description: 11 pages, harvmac. revised x 2: refs and minor comments added
TECNOLOGIA_19_00061.pdf
Creators: name: Avalos, Juan
Publisher: name: figshare
Year: 2021
Subjects: subject: 91301 Acoustics and Noise Control (excl. Architectural Acoustics)
subject: FOS: Mechanical engineering

description: En este trabajo se presenta una modificación del algoritmo de mínimos cuadrados promediados normalizados (NLMS - normalized least mean square) que emplea la teoría del error codificado para reducir el costo computacional. Además, se muestra un método para calcular dinámicamente la resolución del codificador. El algoritmo desarrollado se probó en una estructura de cancelación de eco acústico, los resultados demuestran características de convergencia similares a las del algoritmo NLMS y una considerable reducción en el costo computacional.
MOESM6 of Production of trehalose with trehalose synthase expressed and displayed on the surface of Bacillus subtilis spores
Creators: name: Hongling Liu
name: Shaojie Yang
name: Xihui Wang
name: Tengfei Wang
Publisher: name: figshare
Year: 2019
Subjects: subject: Biochemistry
subject: Microbiology
subject: FOS: Biological sciences
subject: Genetics
subject: Molecular Biology
subject: Biotechnology
subject: Evolutionary Biology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences

description: Additional file 6. The strategy for the chromosomal integration of the Cot-treS fusion genes.
The geometry of the Toda equation
Creators: name: Calderbank, David M. J.
Publisher: name: arXiv
Year: 1999
Subjects: subject: Differential Geometry (math.DG)
subject: Mathematical Physics (math-ph)
subject: FOS: Mathematics
subject: FOS: Physical sciences
subject: 53A30; 53C25

description: I show that solutions of the SU(infinity) Toda field equation generating a fixed Einstein-Weyl space are governed by a linear equation on the Einstein-Weyl space. From this, obstructions to the existence of Toda solutions generating a given Einstein-Weyl space are found. I also give a classification of Einstein-Weyl spaces arising from the Toda equation in more than one way. This classification coincides with a class of spaces found by Ward and hence clarifies some of their properties. I end by discussing the simplest examples.
description: AMS-LaTeX 11 pages; minor changes to title, keywords and references
MOESM5 of Production of trehalose with trehalose synthase expressed and displayed on the surface of Bacillus subtilis spores
Creators: name: Hongling Liu
name: Shaojie Yang
name: Xihui Wang
name: Tengfei Wang
Publisher: name: figshare
Year: 2019
Subjects: subject: Biochemistry
subject: Microbiology
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Biotechnology
subject: Evolutionary Biology

description: Additional file 5. Construction of recombinant plasmid pDG1730-CotC-treSâ CotG-treS.
Bildungssystem und Bildungspolitik in der Sowjetunion und der Russischen Föderation
Creators: name: ZEILNER FRANZ
Publisher: name: Zenodo
Year: 2011
Subjects: Bildungssystem
Bildungspolitik
Sowjetunion
Russische Föderation
Schule und Universitäten
Kooperationen mit Deutschland

description: Forschungsbereiche bzw. Schwerpunkte der Arbeit - Die allgemeine Schulausbildung zur Zeit der Sowjetunion, während der Perestroika und in der Russischen Föderation - Entwicklung der Hochschule in Dekaden - Die Entwicklung der wesentlichen Rechtsnormen im Schul- und Hochschulbereich - Politik und Bildung: Nationale Projekte im Bildungsbereich und deren zentrale Ziele - Demokratieerziehung im Bereich Bildung – besonders im Hochschulbereich - Der Beitritt Russlands zum Bologna – Prozess und die Umsetzung dieser Ziele - Die Auswirkungen des Systems der Marktwirtschaft - Die wesentlichen Indikatoren für die Bildung in Russland - Zusammenarbeit der russischen Föderation in Bildung und Forschung - Gegenwart und mögliche Entwicklungen
Envelope Solitons of Nonlinear Schrodinger Equation with an Anti-cubic Nonlinearity
Creators: name: Fedele, R.
name: Schamel, H.
name: Karpman, V. I.
name: Shukla, P. K.
Publisher: name: arXiv
Year: 2002
Subjects: subject: Pattern Formation and Solitons (nlin.PS)
subject: FOS: Physical sciences

description: On the basis of a recently-proposed method to find solitary solutions of generalized nonlinear Schrodinger equations [1]-[3], the existence of an envelope solitonlike solutions of a nonlinear Schrodinger equation containing an anti-cubic nonlinearity (|Psi|^{-4} Psi) plus a "regular" nonlinear part is investigated. In particular, in case the regular nonlinear part consists of a sum of a cubic and a quintic nonlinearities (i.e. q_1 |Psi|^2 Psi + q_2 |Psi|^4 Psi), an upper-shifted bright envelope solitonlike solution is explicitly found.
Hydrodynamic correlations in isotropic fluids and liquid crystals simulated by multi-particle collision dynamics
Creators: name: Híjar, H.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: Multi-particle collision dynamics is an appealing numerical technique aiming at simulating fluids at the mesoscopic scale. It considers molecular details in a coarse-grained fashion and reproduces hydrodynamic phenomena. Here, the implementation of multi-particle collision dynamics for isotropic fluids is analysed under the so-called Andersen-thermostatted scheme, a particular algorithm for systems in the canonical ensemble. This method gives rise to hydrodynamic fluctuations that spontaneously relax towards equilibrium. This relaxation process can be described by a linearized theory and used to calculate transport coefficients of the system. The extension of the algorithm for nematic liquid crystals is also considered. It is shown that thermal fluctuations in the average molecular orientation can be described by an extended linearized scheme. Flow fluctuations induce orientation fluctuations. However, orientational changes produce observable effects on velocity correlation functions only when simulation parameters exceed their values from those used in previous applications of the method. Otherwise, the flow can be considered to be independent of the orientation field.
description: 16 pages, 8 figures
Black holes have no short hair
Creators: name: Núñez, Darío
name: Quevedo, Hernando
name: Sudarsky, Daniel
Publisher: name: arXiv
Year: 1996
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We show that in all theories in which black hole hair has been discovered, the region with non-trivial structure of the non-linear matter fields must extend beyond 3/2 the horizon radius, independently of all other parameters present in the theory. We argue that this is a universal lower bound that applies in every theory where hair is present. This {\it no short hair conjecture} is then put forward as a more modest alternative to the original {\it no hair conjecture}, the validity of which now seems doubtful.
description: Published in Physical Review Letters, 13 pages in Latex
MOESM4 of Production of trehalose with trehalose synthase expressed and displayed on the surface of Bacillus subtilis spores
Creators: name: Hongling Liu
name: Shaojie Yang
name: Xihui Wang
name: Tengfei Wang
Publisher: name: figshare
Year: 2019
Subjects: subject: Biochemistry
subject: Microbiology
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Biotechnology
subject: Evolutionary Biology

description: Additional file 4. Construction of recombinant plasmids pDG1730-CotC-treS and pDG1730-CotG-treS.
Curvature fluctuations and Lyapunov exponent at Melting
Creators: name: Mehra, Vishal
name: Ramaswamy, Ramakrishna
Publisher: name: arXiv
Year: 1997
Subjects: subject: Chaotic Dynamics (nlin.CD)
subject: FOS: Physical sciences

description: We calculate the maximal Lyapunov exponent in constant-energy molecular dynamics simulations at the melting transition for finite clusters of 6 to 13 particles (model rare-gas and metallic systems) as well as for bulk rare-gas solid. For clusters, the Lyapunov exponent generally varies linearly with the total energy, but the slope changes sharply at the melting transition. In the bulk system, melting corresponds to a jump in the Lyapunov exponent, and this corresponds to a singularity in the variance of the curvature of the potential energy surface. In these systems there are two mechanisms of chaos -- local instability and parametric instability. We calculate the contribution of the parametric instability towards the chaoticity of these systems using a recently proposed formalism. The contribution of parametric instability is a continuous function of energy in small clusters but not in the bulk where the melting corresponds to a decrease in this quantity. This implies that the melting in small clusters does not lead to enhanced local instability.
description: Revtex with 7 PS figures. To appear in Phys Rev E
Quantum Teichmüller space
Creators: name: Chekhov, L.
name: Fock, V. V.
Publisher: name: arXiv
Year: 1999
Subjects: subject: Quantum Algebra (math.QA)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: We describe explicitly a noncommutative deformation of the *-algebra of functions on the Teichmüller space of Riemann surfaces with holes equivariant w.r.t. the mapping class group action.
description: 16 pages, 4 figures in text; LaTeX; references added
In vivo Dissection of Long Range Inputs to the Rat Barrel Cortex
Creators: Zhang, Wanying
Publisher: name: Columbia University
Year: 2014
Subjects: subject: Neurosciences
subject: FOS: Clinical medicine

description: Layer 1 (L1) of the cerebral cortex is a largely acellular layer that consists mainly of long-range projection axons and apical dendrites of deeper pyramidal neurons. In the rodent barrel cortex, L1 contains axons from both higher motor and sensory areas of the brain. Despite the abundance of synapses in L1 their actual contribution to sensory processing remains unknown. We investigated the impact of activating long-range axons on barrel cortex L2/3 pyramidal neurons in vivo using a combination of optogenetics and eletrophysiological techniques. The reason we target our investigation on L2/3 is because of its well-known sparse sensory responses. We hypothesize that long-range top-down inputs via L1 can provide the additional inputs necessary to unleash L2/3 and strongly influence sensory processing in S1. We focused on three main sources of BC-projecting synapses: the posterior medial nucleus of the thalamus (POm, the secondary somatosensory nucleus), the primary motor cortex (M1), and the secondary somatosensory cortex (S2).
      Here we report that while activation of POm axons elicits strong EPSPs in most recorded L2/3 cells, activation of M1 or S2 axons elicited small or no detectable responses. Only POm activation boosted sensory responses in L2/3 pyramidal neurons. We also found that during wakefulness and under sedation, POM activation not only elicited a strong fast-onset EPSP in L2/3 neurons, but also a delayed persistent response. Pharmacological inactivation of POM abolished this persistent response but not the initial synaptic volley to L2/3. We conclude that the persistent response requires intrathalamic or thalamocortical circuits and cannot be mediated by specialized synaptic terminals or intracortical circuitry.
      Overall, our study suggests that the higher order thalamic nucleus provides more powerful network effect on L2/3 sensory processing than higher order cortical feedback inputs. POm activation not only directly boosts L2/3 sensory responses, but is also capable of influencing
      S1 signal processing for prolonged periods of time after stimulus onset and can potentially be important for other cognitive aspects of sensory computation.
Cyclic actions on rational ruled symplectic four-manifolds
Creators: name: Chiang, River
name: Kessler, Liat
Publisher: name: arXiv
Year: 2019
Subjects: subject: Symplectic Geometry (math.SG)
subject: FOS: Mathematics

description: Let $(M,ω)$ be a ruled symplectic four-manifold. If $(M, ω)$ is rational, then every homologically trivial symplectic cyclic action on $(M,ω)$ is the restriction of a Hamiltonian circle action.
Using biochemical circuits to approximately compute log-likelihood ratio for detecting persistent signals
Creators: name: Chou, Chun Tung
Publisher: name: arXiv
Year: 2019
Subjects: subject: Molecular Networks (q-bio.MN)
subject: FOS: Biological sciences

description: Given that biochemical circuits can process information by using analog computation, a question is: What can biochemical circuits compute? This paper considers the problem of using biochemical circuits to distinguish persistent signals from transient ones. We define a statistical detection problem over a reaction pathway consisting of three species: an inducer, a transcription factor (TF) and a gene promoter, where the inducer can activate the TF and an active TF can bind to the gene promoter. We model the pathway using the chemical master equation so the counts of bound promoters over time is a stochastic signal. We consider the problem of using the continuous-time stochastic signal of the counts of bound promoters to infer whether the inducer signal is persistent or not. We use statistical detection theory to derive the solution to this detection problem, which is to compute the log-likelihood ratio of observing a persistent signal to a transient one. We then show, using time-scale separation and other assumptions, that this log-likelihood ratio can be approximately computed by using the continuous-time signals of the number of active TF molecules and the number of bound promoters when the input is persistent. Finally, we show that the coherent feedforward gene circuits can be used to approximately compute this log-likelihood ratio when the inducer signal is persistent.
Molybdenum in the environment and implications to mine decommissioning in British Columbia
Creators: name: Jones, Carol Elizabeth, 1953-
Publisher: name: The University of British Columbia
Year: 2010

description: An environmental concern of several mines in BC is the potential impact of elevated concentrations of molybdenum. Possible impacts of molybdenum include effects on agricultural land use where disturbed land is returned to forage production and/or grazing, and effects on the quality of water, used either as fish habitat or irrigation supply. A review of research concerning molybdenum in the environment as it relates to BC mining conditions was initiated by Environment Canada and BC Ministry of Energy Mines and Petroleum Resources. This study, funded by CANMET through the Canada-BC Agreement on Mineral Development, involved a review of the published literature and non-published results of studies carried out by BC mines and other sources. Critical to the assessment of the literature and other research results is an understanding of the soil and aquatic chemistry conditions for molybdenum bearing mine wastes in BC. In addition to a review of the presently available information on the molybdenum concern, the study addressed critical questions which remain to be answered and proposed how government and industry could resolve these issues.
title: Hemerocallis middendorffii Trautv. & C. A. Mey.
Creators: name: :None
Publisher: name: Universitätsbibliothek
Year: 2009
Subjects: subject: Digitale Pflanzenbilder: Sammlung Dietmar Brandes
subject: 580

description: Pflanzensammlung Dietmar Brandes: Digitale Pflanzenbilder
Daily Building Record
Creators: name: (:Null)
Publisher: name: Vancouver, B.C. : Record Publishing Company
Year: 2021

description: The Daily Building Record was published in Vancouver, and ran from January 1912 to October 1914. As the official publication for the Architectural Institute of B.C., the B.C. Builders Exchange, and the Building and Construction Industries Exchange of B.C., the Record primarily covered news related to building, contracting, engineering, real estate, and industrial finance. The Record was published by the Record Publishing Company, which subsequently published the paper under different titles, including the British Columbia Building Record and the British Columbia Record. The Record continues as the Journal of Commerce. ; Building, Contracting, Engineering, Irrigation and General Improvement News. Devoted to the interests of Architects, Contractors, Engineers, Material Dealers and others interested in the building trade of the N.W.
MOESM2 of Production of trehalose with trehalose synthase expressed and displayed on the surface of Bacillus subtilis spores
Creators: name: Hongling Liu
name: Shaojie Yang
name: Xihui Wang
name: Tengfei Wang
Publisher: name: figshare
Year: 2019
Subjects: subject: Biochemistry
subject: 29999 Physical Sciences not elsewhere classified
subject: FOS: Physical sciences
subject: Microbiology
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Physiology
subject: Biotechnology
subject: Evolutionary Biology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences

description: Additional file 2. Optimal pH, temperature, and tolerance of TreS displayed on the spore surface.
New no-scalar-hair theorem for black-holes
Creators: name: Saa, Alberto
Publisher: name: arXiv
Year: 1996
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: A new no-hair theorem is formulated which rules out a very large class of non-minimally coupled finite scalar dressing of an asymptotically flat, static, and spherically symmetric black-hole. The proof is very simple and based in a covariant method for generating solutions for non-minimally coupled scalar fields starting from the minimally coupled case. Such method generalizes the Bekenstein method for conformal coupling and other recent ones. We also discuss the role of the finiteness assumption for the scalar field.
description: Revtex, 12 pages
Prediction of water chemistry in open pits during operation and after closure
Creators: name: Morin, Kevin A. (Kevin Andrew), 1955-
Publisher: name: The University of British Columbia
Year: 2010

description: Environmental monitoring at minesites often focuses on tailings impoundments and minerock piles. While these components may produce the greatest impacts on water chemistry at a minesite, the mine itself, consisting of an open pit or underground workings, can also affect water chemistry if the walls of the mine expose rock that releases metals, nonmetals, and acidity. During mining of an open pit or underground workings, all water is typically pumped or drained from the mine to maintain optimum and safe working conditions. After closure, a mine is usually allowed to fill through time to its equilibrium level, or it may be flooded by directing water into it. The ability to predict the chemistry of the minewater during these phases of operation and closure can be valuable for potential treatment costs, engineering design, and closure bonding. In order to predict minewater chemistry, conceptual models have been developed to address water movement to and from mines during operation and closure. The relevant geochemical aspects of unit-rock-surface reaction rates and total amount of reactive rock surface in a mine are then addressed. The compilation of these models and factors forms the basis of the MINEWALL computer program, which is currently being revised, expanded, and tested as Version 2.0. MINEWALL shows that a key factor in predicting minewater chemistry is the estimation of percentages of reactive surface that are flushed regularly, once a year, or nor during operation. However, direct measurement of these percentages is not currently possible. Consequently, MINEWALL can be first calibrated to operational data to obtain the percentages and then used in predictive mode for the remainder of operation and subsequent closure. Data from three mines in British Columbia show, for example, that (1) total reactive surface areas can range from tens of millions to hundreds of millions of square meters, (2) the percentage of these surfaces not flushed during operation range from 70 to 90%, and (3) unitarea leaching rates of copper range from 0.014 to 2.35 mg Cu/m²/wk. Keywords: acidic drainage, open pit mines, geochemical predictions, hydrogeology
Coarsening by Ginzburg-Landau Dynamics
Creators: name: Eckmann, J. -P.
name: Rougemont, J.
Publisher: name: arXiv
Year: 1997
Subjects: subject: Chaotic Dynamics (nlin.CD)
subject: FOS: Physical sciences

description: We study slowly moving solutions of the real Ginzburg-Landau equation on the line, by a method due to J. Carr and R.L. Pego. These are functions taking alternately positive or negative values on large intervals. A consequence of our approach is that we can propose a rigorous derivation of a stochastic model of coarsening by successive elimination of the smallest interval, which was described in earlier work by A.J. Bray, B. Derrida and C. Godrèche.
description: 30 pages, TeX + postscript figures
MOESM3 of Production of trehalose with trehalose synthase expressed and displayed on the surface of Bacillus subtilis spores
Creators: name: Hongling Liu
name: Shaojie Yang
name: Xihui Wang
name: Tengfei Wang
Publisher: name: figshare
Year: 2019
Subjects: subject: Biochemistry
subject: Microbiology
subject: FOS: Biological sciences
subject: Genetics
subject: Molecular Biology
subject: Biotechnology
subject: Evolutionary Biology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 69999 Biological Sciences not elsewhere classified

description: Additional file 3. The bacterial strains, plasmids, and primers used in this study.
Molecular dynamics simulations of the properties of water-methanol mixtures. Effects of force fields
Creators: name: Sanchez, M. Cruz
name: Dominguez, H.
name: Pizio, O.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: Isothermal-isobaric molecular dynamics simulations are used to examine the microscopic structure and some properties of water-methanol liquid mixture. The TIP4P/2005 and SPC/E water models are combined with the united atom TraPPE and the all-atom force field model for methanol. Our principal focus is to evaluate the quality of predictions of different combinations of model force fields concerning the composition dependence of basic properties of this system. Specifically, we explored the composition effects on density, excess molar volume and excess entropy, as well as on the surface tension and static dielectric constant. In addition, the structural properties are described in terms of the coordination numbers and the average number of hydrogen bonds between molecules of constituent species. Finally, the composition dependence of self-diffusion coefficients of the species is evaluated. All theoretical predictions are tested with respect to experimental data.
description: 14 pages, 7 figures, 1 table
In vivo Observation of the Release of Norepinephrine and In Vivo Optical Studies on the Direct and Indirect Paths of the Striatum
Creators: Clark, Samuel
Publisher: name: Columbia University
Year: 2018
Subjects: subject: Neurosciences
subject: FOS: Clinical medicine
subject: Noradrenaline
subject: Neurobiology
subject: Neural circuitry

description: This thesis focuses on my work using optical techniques to study different brain regions in vivo. The ability to optically study neurons and the circuits they comprise in vivo is an important method to better understand their role in the healthy brain and their dysfunction in disease.
      The first part of my thesis focuses on my work using on a collaborative project using a new optical probe to study norepinephrine synapses in vivo. In this work we were able to observe the effects of amphetamine on norepinephrine release in vivo and observed some evidence of potential silent synapses.
      I also describe a new method of cranial window surgery I developed for optical imaging. This technique called PHASOR, is faster, and has a higher success rate, than traditional surgical methods. The improvements demonstrated in this new surgical technique may enable more widespread use of optical imaging methods.
      In the second part of my thesis, I used optical techniques to study the dorsal striatum in vivo in awake behaving mice. The direct and indirect paths of the dorsal striatum play an important role in motor behavior and motor learning. Dysfunction in these paths has been implicated in motor diseases as well as in mood disorders. In this thesis, I provide a review of the anatomy and physiology of the neurons that comprise the dorsal striatum, and the circuits that they form. The next chapters describe my work using optical techniques to record from these neurons in vivo.
      In my first set of experiments, I recorded from the direct and indirect paths during a behavioral task of anxiety and observed differential firing depending on the anxiety state of the mouse.
      Finally, in a preliminary set of experiments, I record from the direct and indirect paths during tasks of motor learning. I found that both paths show changes in firing during motor learning and that these changes differ between the dorsolateral and dorsomedial striatum.
MOESM1 of Production of trehalose with trehalose synthase expressed and displayed on the surface of Bacillus subtilis spores
Creators: name: Hongling Liu
name: Shaojie Yang
name: Xihui Wang
name: Tengfei Wang
Publisher: name: figshare
Year: 2019
Subjects: subject: Biochemistry
subject: Microbiology
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Physiology
subject: Biotechnology
subject: Evolutionary Biology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Immunology
subject: FOS: Clinical medicine
subject: Cancer
subject: 110309 Infectious Diseases
subject: FOS: Health sciences

description: Additional file 1. The dot blot assay of TreS displayed on spore surface from different recombinant bacteria. 1: TreS standard; C+G: TreS displayed on the spore surface of B. subtilis WB800n/cotC-treSâ cotG-treS; C: TreS displayed on the spore surface of B. subtilis WB800n/cotC-treS; G: TreS displayed on the spore surface of B. subtilis WB800n/cotG-treS.
In-Kind Terra Cotta Replacement in the 21st Century
Creators: Barr, Emily
Publisher: name: Columbia University
Year: 2014
Subjects: Historic preservation
Terra-cotta
Building, Terra-cotta

description: Architectural terra cotta was the most popular building material in America between 1890 and 1930. As an era of innovation, the characteristics of terra cotta and appropriate construction methods were not fully understood. With building construction halted during the Great Depression and changing architectural styles, demand for terra cotta dropped to a low, and the industry fell into decline, nearly disappearing completely. As terra cotta buildings began to age and deteriorate, the industry no longer existed to provide material replacement as needed. Various alternative materials were explored and used for reasons of availability and cost. However, performance and appearance of some of these materials was deemed unsatisfactory and the continued need for more appropriate replacement materials has led to a recent revitalization of the terra cotta industry. Currently three major manufacturers produce architectural terra cotta for replacement material in historic structures: Boston Valley Terra Cotta, Gladding McBean, and Shaws of Darwen. Each of these companies uses different fabrication processes ranging from traditional hand pressing or slip casting methods, to mechanical methods of extrusion or RAM pressing. The technology and processes available for terra cotta production have changed significantly over the last 100 years. In spite of the comeback the industry is making, little research has been done to compare the current materials, production process and installation methods to those traditionally used, and how they have or can be improved. Modern terra cotta production has incorporated new technology to: improve the quality of the product, reduce time necessary for production, lower cost and thus increase the feasibility of replacing terra cotta in-kind. With a better quality control of the production process, a more predictable and dimensionally stable terra cotta product can be achieved. It raises an important question. While preservation encourages the use of in-kind replacement, is it actually still the same material? This is not just a philosophical issue but goes to the heart of the physical characteristics and their compatibility. This paper seeks, through a review of current production processes in comparison to historic methods, a material analysis (petrography and visual survey) to examine the characteristics of current material and effects of modern fabrication processes. In addition it intends to review traditional installation techniques to ensure replacement interventions better accommodate the characteristics and capabilities of the material. This research includes a comprehensive review of the production and use of terra cotta, and effects of physical requirements, time constraints and cost considerations. This extends itself not just to manufacture but includes with the overall goal to encourage proper in-kind replacement, assure the longevity and success of the replacement material within our historic structures.