cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Hedgehog signalling does not stimulate cartilage catabolism and is inhibited by Interleukin-1β
Creators: name: Thompson, Clare L.
name: Kelly, Terri-Ann N.
name: Patel, Riana
name: Wann, Angus K. T.
name: Hung, Clark T.
name: Chapple, J. Paul
name: Knight, Martin M.
Publisher: name: Columbia University
Year: 2015
Subjects: Articular cartilage
Interleukin-1
Hedgehogs
Osteoarthritis
Biochemistry

description: Background
In osteoarthritis, chondrocytes adopt an abnormal hypertrophic morphology and upregulate the expression of the extracellular matrix-degrading enzymes, MMP-13 and ADAMTS-5. The activation of the hedgehog signalling pathway has been established in osteoarthritis and is thought to influence both of these processes. However, the role of this pathway in the initiation and progression of osteoarthritis is unclear as previous studies have been unable to isolate the effects of hedgehog pathway activation from other pathological processes. In this study we test the hypothesis that hedgehog pathway activation causes cartilage degradation in healthy cartilage and in an in vitro model of inflammatory arthritis.

Methods
Isolated articular chondrocytes from the bovine metacarpal-phalangeal joint were stimulated for up to 24 hours with the agonist, recombinant Indian hedgehog (r-Ihh). ADAMTS-5 and MMP-13 gene expression was quantified by real-time PCR. In addition, healthy bovine cartilage explants were treated with r-Ihh or the hedgehog antagonist, cyclopamine, and sGAG release into the media was measured over 72 hours. Studies were repeated using chondrocytes and cartilage explants from human knee joint. Finally, studies were conducted to determine the effect of hedgehog pathway activation on matrix catabolism in the presence of the pro-inflammatory cytokine, IL-1β.

Results
Addition of r-Ihh activated hedgehog signalling, confirmed by upregulation of Gli1 and Ptch1 expression, but did not increase ADAMTS-5 or MMP-13 expression in bovine or human chondrocytes. Furthermore, r-Ihh did not induce sGAG release in healthy bovine or human cartilage explants. IL-1β treatment induced sGAG release, but this response was not altered by the stimulation or inhibition of hedgehog signalling. Hedgehog pathway activation was downregulated by IL-1β. Conversely, r-Ihh weakly suppressed IL-1β-induced ADAMTS-5 expression.

Conclusion
Our results show for the first time that Indian hedgehog does not cause extracellular matrix degradation in healthy ex vivo cartilage or in the presence of IL-1β and that IL-1β downregulates Indian hedgehog induced signalling. Thus, we suggest reported hedgehog induced matrix catabolism in osteoarthritis must be due to its interaction with pathological factors other than IL-1β. Hence, hedgehog signalling and its downstream effects are highly context-dependent.
130 GeV dark matter and the Fermi gamma-ray line
Creators: name: Cline, James M.
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Based on tentative evidence for a peak in the Fermi gamma-ray spectrum originating from near the center of the galaxy, it has been suggested that dark matter of mass ~130 GeV is annihilating directly into photons with a cross section ~24 times smaller than that needed for the thermal relic density. We propose a simple particle physics model in which the DM is a scalar X, with a coupling lambda_X X^2|S|^2 to a scalar multiplet S carrying electric charge, which allows for XX -> gamma gamma at one loop due to the virtual S. We predict a second monochromatic photon peak at 114 GeV due to XX-> gamma Z. The S is colored under a hidden sector SU(N) or QCD to help boost the XX -> gamma gamma cross section. The analogous coupling lambda_h h^2 |S|^2 to the Higgs boson can naturally increase the partial width for h -> gamma gamma by an amount comparable to its standard model value, as suggested by recent measurements from CMS. Due to the hidden sector SU(N) (or QCD), S binds to its antiparticle to form S-mesons, which will be pair-produced in colliders and then decay predominantly to XX, hh, or to glueballs of the SU(N) which subsequently decay to photons. The cross section for X on nucleons is close to the Xenon100 upper limit, suggesting that it should be discovered soon by direct detection.
description: 5 pages, 5 figures. v2: fixed error concerning EWPD; S becomes SU(2)_L singlet. Main results and predictions unchanged. v3: discussed need for S to decay. v4: elaborated S decay mechanism and collider signatures; v5: added WW and ZZ annihilation channels for relic density, and new XENON100 limit
China’s Regulatory Framework for Outward Foreign Direct Investment
Creators: name: Sauvant, Karl P.
name: Zitian Chen, Victor
Publisher: name: Columbia University
Year: 2014
Subjects: subject: Law and economics
subject: Government business enterprises
subject: Developing countries
subject: Investments, Foreign
subject: Law
subject: FOS: Law

description: China has become the world’s third largest outward investor, behind the United States and Japan. A growing body of literature suggests that China’s regulatory framework for outward foreign direct investment (OFDI) is a determinant of the country’s rising OFDI. This paper presents a holistic review of that framework, including some possibilities for its improvement. Overall, China’s framework serves two objectives: to help Chinese firms become more competitive internationally and to assist the country in its development effort. In pursuing these objectives, the regulatory framework has moved from restricting, to facilitating, to supporting, to encouraging OFDI; but there are still strong elements of administrative control that make it cumbersome. State-owned enterprises (SOEs) seem to benefit particularly from the current framework when internationalizing through FDI.
“Trade with security” : how Canada and the Netherlands relocated state frontiers through civil aviation networks
Creators: name: Sulmona, Luigi Giuseppe
Publisher: name: University of British Columbia
Year: 2012

description: Since the 1980s, globalization has driven rapid civil aviation industry growth, creating enforcement issues for border control agencies and complicating passenger service. In response, airlines, airports, and the state jointly pursued trade facilitation, including Advanced Border Control (ABC) programs (i.e. Automated Border Kiosks, United States Preclearance Service, and Advanced Passenger Information Systems). As September 11, 2001 (9/11) attacks drove resurgent border control policy, the ABC programs became increasingly useful. Post-9/11 national security policy also had globalization implications, summarized in 2003 by the U.S. Ambassador to Canada, Paul Cellucci, as “security trumps trade”. This thesis therefore examines how ABC programs influenced the civil aviation industry, and the balance between trade and national security from 1985 to 2010, with case studies from Canada and the Netherlands. The methodology involved a review of the academic literature, relevant policy and corporate documents, and stakeholder interviews. The research concludes that the civil aviation firms and border control agencies maintained continuous collaboration, despite political, business, and technical challenges. Relations did change post-9/11, especially in Canada with increased state leadership. The research thus contributes to understanding border control partnerships between agencies, airlines, and airports that worked towards a “trade with security” strategy. The research also identifies that this private and public sector coordination encouraged collaboration with the U.S. on trade and national security policies. Conceptually, this multi-decade symbiotic state-firm “partnership” had material implications for trans-national relations by contributing to the “relocation of frontiers to extra-territorial and virtual spaces”. The ABC program “remote-control” tools thus permit the re-working of spatial interaction, with the “re-location” of territory that redefines where the state may “perform” its sovereign duties. For globalization, this means firms contribute to “negating border controls, but not sovereign borders”, which paradoxically strengthens the ability for the state to protect national security interests through the “projection of sovereignty”. These practices however need attention given the potential for human rights-related exclusion, along with unwarranted firm complexity. However, in looking towards a world where mobility and connectivity become paramount for societal participation, streamlined linkages enabled by sophisticated ABC programs can permit local spaces to better participate in global flows.
Policy Options for Promoting Foreign Direct Investment in the Least Developed Countries
Creators: name: Sauvant, Karl P.
name: Mallampally, Padma
Publisher: name: Columbia University
Year: 2015
Subjects: subject: Investments, Foreign
subject: Law and economics
subject: Stocks
subject: Developing countries
subject: Law
subject: FOS: Law

description: Foreign direct investment (FDI) plays an important role in the world economy and has the potential to contribute towards accelerating the process of economic growth and sustainable development in the least developed countries (LDCs). The paper provides a brief overview of recent trends and patterns in FDI flows to the LDCs, and then takes stock of the policies, programmes and measures pursued by host and home countries and by international organizations to stimulate FDI flows to LDCs and increase their benefits for these countries. It then lays out a number of policy proposals on how flows to LDCs, and the benefits associated with them, can be enhanced. Finally, it outlines some options for international action to strengthen such efforts – proposals and options that are also relevant to other developing countries.
Equivariant cohomology of cohomogeneity one actions
Creators: name: Goertsches, Oliver
name: Mare, Augustin-Liviu
Publisher: name: arXiv
Year: 2011
Subjects: subject: Differential Geometry (math.DG)
subject: Algebraic Topology (math.AT)
subject: FOS: Mathematics
subject: 57S15, 55N91, 57R91

description: We show that if $G\times M \to M$ is a cohomogeneity one action of a compact connected Lie group $G$ on a compact connected manifold $M$ then $H^*_G(M)$ is a Cohen-Macaulay module over $H^*(BG)$. Moreover, this module is free if and only if the rank of at least one isotropy group is equal to the rank of $G$. We deduce as corollaries several results concerning the usual (de Rham) cohomology of $M$, such as the following obstruction to the existence of a cohomogeneity one action: if $M$ admits a cohomogeneity one action, then $χ(M)>0$ if and only if $H^{\rm odd}(M)=\{0\}$.
description: 18 pages. v2: exposition improved; Remark 5.4, Lemma 5.5, and references added
Is the Indian Child Welfare Act Losing Steam?: Non-Custodial Parental Rights After Adoptive Couple v. Baby Girl
Creators: name: Hodge, Courtney
Publisher: name: Columbia University
Year: 2016
Subjects: subject: Adoption--Law and legislation
subject: Domestic relations
subject: Custody of children
subject: Indians of North America
subject: Law
subject: FOS: Law

description: In 2013, the United States Supreme Court handed down a decision in Adoptive Couple v. Baby Girl, a decision that will have long-term effects on the use of the Indian Child Welfare Act by non-custodial Native parents.  Congress passed the Indian Child Welfare Act in 1978 in response to the high volume of Native children that had been removed from their families and their tribes through the child welfare system.  In the decades since the law was enacted, several state courts have sought to limit the application of the law through a state court created doctrine known as the Existing Indian Family Exception.  Since the 2000s, that doctrine has been losing support among state legislatures and courts.  Although Adoptive Couple does not explicitly endorse the exception, the opinion closely tracks the reasoning states courts have used to apply the exception.

This Note analyzes how the majority opinion of the Supreme Court overlooks the rights and interests of non-custodial Native parents, who should also be able to invoke the Indian Child Welfare Act in a case involving their child.  This Note also analyzes the recent guidelines and rules issues by the Bureau of Indian Affairs, which have started to fill in the holes of the application of the Indian Child Welfare Act left by the Supreme Court.  However, as this Note will show, additional action, either by Congress or at the state level, is needed to ensure that future Native parents can use the Indian Child Welfare Act to ensure that their child remains connected to his or her heritage.
Treatment of wood by sulfate and hydroxyl radical oxidation produced from thermally-activated persulfate: VOC emission and wood property evaluation
Creators: name: Wang, Zhiping
name: Huang, Anmin
name: Zhang, Shifeng
name: Su, Yingying
name: Fu, Yuejin
Publisher: name: Taylor & Francis
Year: 2022
Subjects: subject: Biochemistry
subject: Environmental Sciences not elsewhere classified
subject: Chemical Sciences not elsewhere classified
subject: Sociology
subject: FOS: Sociology
subject: Biological Sciences not elsewhere classified
subject: Science Policy
subject: Plant Biology
subject: FOS: Biological sciences

description: Wood emits volatile organic compounds (VOCs) that can affect people’s health and air quality. Based on advanced oxidation processes (AOPs), sulfate radicals produced via thermally-activated persulfate (Na2S2O8, KHSO5) can minimize VOCs. This research aims to apply this technique to minimize the VOC content in Pinus radiata. The results showed that terpenes and alcohols were the main VOCs emitted from Pinus radiata, which were greatly minimized using four treatments; however, acetic acid and 3-furaldehyde emissions increased. Furthermore, the temperature and oxidizing agent contributed to VOC degradation. Characterization results, including FTIR, XRD, color tests, and compressive strength indicated that the AOP treatment caused only a slight decline in the wood properties, while effectively reducing VOC emissions by as much as 32.75–61.05%.
Modeling Stable One-Types
Creators: name: Johnson, Niles
name: Osorno, Angélica M.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Algebraic Topology (math.AT)
subject: Category Theory (math.CT)
subject: FOS: Mathematics
subject: 18B40, 18D10, 55P42, 55S45

description: Classification of homotopy n-types has focused on developing algebraic categories which are equivalent to categories of n-types. We expand this theory by providing algebraic models of homotopy-theoretic constructions for stable one-types. These include a model for the Postnikov one-truncation of the sphere spectrum, and for its action on the model of a stable one-type. We show that a bicategorical cokernel introduced by Vitale models the cofiber of a map between stable one-types, and apply this to develop an algebraic model for the Postnikov data of a stable one-type.
description: 18 pages, final version
Simulation of spin-polarized scanning tunneling spectroscopy on complex magnetic surfaces: Case of a Cr monolayer on Ag(111)
Creators: name: Palotás, Krisztián
name: Hofer, Werner A.
name: Szunyogh, László
Publisher: name: arXiv
Year: 2012
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: We propose a computationally efficient atom-superposition-based method for simulating spin-polarized scanning tunneling spectroscopy (SP-STS) on complex magnetic surfaces based on the sample and tip electronic structures obtained from first principles. We go beyond the commonly used local density of states (LDOS) approximation for the differential conductance, dI/dV. The capabilities of our approach are illustrated for a Cr monolayer on a Ag(111) surface in a noncollinear magnetic state. We find evidence that the simulated tunneling spectra and magnetic asymmetries are sensitive to the tip electronic structure, and we analyze the contributing terms. Related to SP-STS experiments, we show a way to simulate two-dimensional differential conductance maps and qualitatively correct effective spin polarization maps on a constant current contour above a magnetic surface.
description: 31 pages manuscript, 5 figures
DRC Modelling Presentation
Creators: name: Christian Mbenga, Cristian Trijullo
Publisher: name: Zenodo
Year: 2023

description: Presentation showing approach, methods, and findings from OSeMOSYS (open-source energy modeling system) runs for Democratic Republic of Congo as part of the training organized in April 2023 in Windhoek (Namibia) by CCG (Climate Compatible Growth).
R. D. Laing and Me: Lessons in Love, Japanese version
Creators: name: Russell, Roberta
name: Laing, R. D.
Publisher: name: Columbia University
Year: 1992
Subjects: Therapeutic alliance
Love
Intimacy (Psychology)
Psychotherapy
Counseling psychology

description: This is an original and unusual work whose purpose is to show you how to increase your options and thereby to be self-empowered to take your own advice through the enhanced confidence, courage, feelings of well-being, and other salutary effects of a good relationship.
It is an intimate reality, told and experienced at the same time. The course of discovery unfolds between the authors, Roberta Russell and R.D. Laing, as it happens. This book is "real." You will see how the authors made each other crazy in the process of creating this novel verité, united only by their common goal of doing a "how-to" book together that would be useful to you. Both the unfolding of the relationship depicted in this book, and the content discussed, are intended to help you to achieve your realistic goals.
The discerning reader, using the insights of psychoanalysis, will discover the nuances of communication between the authors as they wrestle the obstacles to achieving their goals. In turn, the readers are encouraged to join in this experiment with their own partner, carefully chosen on the basis of conceptual level and mutual intent, and to make of it a vitalizing experience. If you can manage to survive each other’s onslaughts, a well matched partnership is a lot more fun and more motivating than the lone pursuit of solitary goals into further solitude.
Medical Transgressions in America’s Prisons: Defending Transgender Prisoners’ Access to Transition-Related Care
Creators: name: Agbemenu, Esi
Publisher: name: Columbia University
Year: 2015
Subjects: subject: Women prisoners
subject: Transgender people
subject: Health services accessibility
subject: Gender identity
subject: Sex change
subject: Prisons
subject: Law
subject: FOS: Law

description: With Chelsea Manning’s case making headlines, and hit television show Orange Is the New Black highlighting the struggles of a trans woman in prison, the public is slowly becoming aware of the complex issues facing transgender prisoners. Although it is difficult to determine the precise number of this population, a 2009 study by Brown and McDuffie estimates that approximately 750 prisoners in the United States identify as transgender. This is a relatively small portion of the U.S. prison population, but it represents a sizable portion of America’s transgender population. Nearly one in six transgender Americans—and almost half of the African American transgender population—has been incarcerated in a state or federal prison. Although the issues and concerns of this population have gained more attention in legal scholarship, academia, public policy, and social discourse in recent years, many issues are still largely unresolved for transgender inmates, including their access to medical care.
Part I of this Note will provide a background on gender dysphoria and will introduce the concept of prison as a uniquely and problematically gendered space. Part II will introduce the standard of “serious medical need” that is used in Eighth Amendment jurisprudence, with particular focus on how courts have applied this standard to mental health concerns, a category within which gender dysphoria falls. Part III will introduce the central argument that, while increasingly more courts have found gender dysphoria or gender identity disorder to be a serious medical need, they have done so predominantly—and thus problematically—in cases in which the plaintiff has taken extreme measures to remedy his or her lack of treatment. This arguably establishes a pattern whereby attempted suicide and self-surgery become metrics for evaluating the severity of gender dysphoria, and implies that gender dysphoria is not deserving of treatment until it has reached these catastrophic levels. Part IV will address the tension between using medical rhetoric to secure necessary rights for prisoners and avoiding the pathologization of the transgender community that is inherent in the Eighth Amendment argument. Part V will conclude by providing alternative legal arguments as well as broader policy suggestions that may be used alongside the traditional Eighth Amendment argument to secure medical care for transgender inmates.
Discrete Adjustment to a Changing Environment: Experimental Evidence
Creators: name: Khaw, Mel Win
name: Stevens, Luminita
name: Woodford, Michael
Publisher: name: Columbia University
Year: 2016
Subjects: Economics--Psychological aspects
Stochastic models
Pricing--Econometric models
Economics

description: We conduct a laboratory experiment to shed light on the cognitive limitations that may affect the way decision makers respond to changes in their economic environment. The subjects solve a tracking problem: they estimate the probability of a binary event, which changes stochastically. The subjects observe draws and indicate their draw-by-draw estimate. Our subjects depart from the optimal Bayesian benchmark in systematic ways, but these deviations are not simply the result of some boundedly rational, but deterministic rule. Rather, there is a random element in the subjects' response to any given history of evidence. Moreover, subjects adjust their forecast in discrete jumps rather than after each new ring draw, even though there are no explicit adjustment costs. They adjust by both large and small amounts, contrary to the predictions of a simple "S-s" model of optimal adjustment subject to a fixed cost. Finally, subjects prefer to report "round number" probabilities, even though that requires exerting additional effort. Each of these regularities resembles the behavior of firms setting prices for their products. We develop a model of inattentive adjustment and compare its quantitative fit with alternative models of stochastic discrete adjustment used in the literature on price adjustment.
MPEC 2025-F206 : 2025 FQ12
Creators: name: Minor Planet Center Staff
Publisher: name: The Minor Planet Center
Year: 2025
Subjects: subject: Small Solar System bodies
valueUri: http://astrothesaurus.org/uat/1469
subject: 2025 FQ12

description: The Minor Planet Electronic Circulars contain information on unusual minor planets, routine data on comets and natural satellites, and occasional editorial announcements.  They are published on behalf of Division F of the International Astronomical Union by the Minor Planet Center, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
On topological phases of spin chains
Creators: name: Duivenvoorden, Kasper
name: Quella, Thomas
Publisher: name: arXiv
Year: 2012
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Mathematical Physics (math-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Symmetry protected topological phases of one-dimensional spin systems have been classified using group cohomology. In this paper, we revisit this problem for general spin chains which are invariant under a continuous on-site symmetry group G. We evaluate the relevant cohomology groups and find that the topological phases are in one-to-one correspondence with the elements of the fundamental group of G if G is compact, simple and connected and if no additional symmetries are imposed. For spin chains with symmetry PSU(N)=SU(N)/Z_N our analysis implies the existence of N distinct topological phases. For symmetry groups of orthogonal, symplectic or exceptional type we find up to four different phases. Our work suggests a natural generalization of Haldane's conjecture beyond SU(2).
description: 18 pages, 7 figures, 2 tables. Version v2 corresponds to the published version. It includes minor revisions, additional references and an application to cold atom systems
On Lorentzian causality with continuous metrics
Creators: name: Chruściel, Piotr T.
name: Grant, James D. E.
Publisher: name: arXiv
Year: 2011
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Mathematical Physics (math-ph)
subject: Differential Geometry (math.DG)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: We present a systematic study of causality theory on Lorentzian manifolds with continuous metrics. Examples are given which show that some standard facts in smooth Lorentzian geometry, such as light-cones being hypersurfaces, are wrong when metrics which are merely continuous are considered. We show that existence of time functions remains true on domains of dependence with continuous metrics, and that $C^{0,1}$ differentiability of the metric suffices for many key results of the smooth causality theory.
description: Minor changes. Version to appear in Classical and Quantum Gravity
Conversas entre R. D. Lang e Roberta Russell: Lições de Amor
Creators: name: Russell, Roberta
name: Laing, R. D.
Publisher: name: Columbia University
Year: 1992
Subjects: Therapeutic alliance
Love
Intimacy (Psychology)
Psychotherapy
Counseling psychology

description: Impelida pela crença respaldada na pesquisa de que a empatia entre um cliente e um terapeuta é o agente ativo na mudança terapêutica e motivada por meu desejo de ajudar R. D. Laing a aumentar sua renda e, assim, tornarme parte de sua vida, em 1981 sugeri a Laing que escrevesse um livro con­ tando aos seus leitores como ter um relacionamento terapêutico com uma pessoa cuidadosamente selecionada fora dos limites da terapia. Ele imediata­ mente reagiu com a proposta de que eu me juntasse a ele em Londres para escrever tal livro. Com isso, poderíamos tentar nós próprios essa espécie de relacionamento construtivo. Nosso propósito era criar um livro bem-sucedi­ do de orientação e aumentar nossas opções pessoais, como acontece em uma terapia bem-sucedida. Foi assim que este livro — uma verdadeira história de amor — começou
title: Johann Theodor Gottfried Sonnemann
title: An entry in the LCA Online Dictionary of Leibniz’s Correspondents and Acquaintances
titleType: Subtitle
Creators: name: (:Tba)
Publisher: name: LCA Project
Year: 2018

description: Johann Theodor Gottfried Sonnemann as a personal relation of Leibniz’s: The resource presents biographical information on a correspondent of Leibniz's
Mutually unbiased bases for the rotor degree of freedom
Creators: name: Lü, Xin
name: Raynal, Philippe
name: Englert, Berthold-Georg
Publisher: name: arXiv
Year: 2012
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We consider the existence of a continuous set of mutually unbiased bases for the continuous and periodic degree of freedom that describes motion on a circle (rotor degree of freedom). By a singular mapping of the circle to the line, we find a first, but somewhat unsatisfactory, continuous set which does not relate to an underlying Heisenberg pair of complementary observables. Then, by a nonsingular mapping of the discrete angular momentum basis of the rotor onto the Fock basis for linear motion, we construct such a Heisenberg pair for the rotor and use it to obtain a second, fully satisfactory, set of mutually unbiased bases.
description: 9 pages, 4 figures
One Relator Quotients of Graph Products
Creators: name: Antolin, Yago
name: Kar, Aditi
Publisher: name: arXiv
Year: 2012
Subjects: subject: Group Theory (math.GR)
subject: FOS: Mathematics

description: In this paper, we generalise Magnus' Freiheitssatz and solution to the word problem for one-relator groups by considering one relator quotients of certain classes of right-angled Artin groups and graph products of locally indicable polycyclic groups.
title: Sophie Charlotte von Brandenburg-Preussen
title: An entry in the LCA Online Dictionary of Leibniz’s Correspondents and Acquaintances
titleType: Subtitle
Creators: name: (:Tba)
Publisher: name: LCA Project
Year: 2018

description: Sophie Charlotte von Brandenburg-Preussen as a personal relation of Leibniz’s: The resource presents biographical information on a correspondent of Leibniz's
A new estimate on Evans' Weak KAM approach
Creators: name: Bernardi, O.
name: Cardin, F.
name: Guzzo, M.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Dynamical Systems (math.DS)
subject: Mathematical Physics (math-ph)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: We consider a recent formulation of weak KAM theory proposed by Evans. As well as for classical integrability, for one dimensional mechanical Hamiltonian systems all the computations can be explicitly done. This allows us on the one hand to illustrate the geometric content of the theory, on the other hand to prove new lower bounds which extend also to the generic n degrees of freedom case.
Scaling Properties of Dimensionality Reduction for Neural Populations and Network Models
Creators: name: Williamson, Ryan C.
name: Cowley, Benjamin R.
name: Kumar, Ashok
name: Doiron, Brent
name: Kohn, Adam
name: Yu, Byron M.
name: Smith, Matthew A.
Publisher: name: Columbia University
Year: 2016
Subjects: subject: Neurons
subject: Neural networks (Neurobiology)
subject: Developmental neurobiology
subject: Dimension reduction (Statistics)
subject: Neurosciences
subject: FOS: Clinical medicine

description: Recent studies have applied dimensionality reduction methods to understand how the multi-dimensional structure of neural population activity gives rise to brain function. It is unclear, however, how the results obtained from dimensionality reduction generalize to recordings with larger numbers of neurons and trials or how these results relate to the underlying network structure. We address these questions by applying factor analysis to recordings in the visual cortex of non-human primates and to spiking network models that self-generate irregular activity through a balance of excitation and inhibition. We compared the scaling trends of two key outputs of dimensionality reduction—shared dimensionality and percent shared variance—with neuron and trial count. We found that the scaling properties of networks with non-clustered and clustered connectivity differed, and that the in vivo recordings were more consistent with the clustered network. Furthermore, recordings from tens of neurons were sufficient to identify the dominant modes of shared variability that generalize to larger portions of the network. These findings can help guide the interpretation of dimensionality reduction outputs in regimes of limited neuron and trial sampling and help relate these outputs to the underlying network structure.
title: Sophie Dorothea von Brandenburg-Preussen
title: An entry in the LCA Online Dictionary of Leibniz’s Correspondents and Acquaintances
titleType: Subtitle
Creators: name: (:Tba)
Publisher: name: LCA Project
Year: 2018

description: Sophie Dorothea von Brandenburg-Preussen as a personal relation of Leibniz’s: The resource presents biographical information on a correspondent of Leibniz's
Three-sublattice order in the SU(3) Heisenberg model on the square and triangular lattice
Creators: name: Bauer, Bela
name: Corboz, Philippe
name: Läuchli, Andreas M.
name: Messio, Laura
name: Penc, Karlo
name: Troyer, Matthias
name: Mila, Frédéric
Publisher: name: arXiv
Year: 2011
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: We present a numerical study of the SU(3) Heisenberg model of three-flavor fermions on the triangular and square lattice by means of the density-matrix renormalization group (DMRG) and infinite projected entangled-pair states (iPEPS). For the triangular lattice we confirm that the ground state has a three-sublattice order with a finite ordered moment which is compatible with the result from linear flavor wave theory (LFWT). The same type of order has recently been predicted also for the square lattice [PRL 105, 265301 (2010)] from LFWT and exact diagonalization. However, for this case the ordered moment cannot be computed based on LFWT due to divergent fluctuations. Our numerical study clearly supports this three-sublattice order, with an ordered moment of m=0.2-0.4 in the thermodynamic limit.
description: Published version. 11 pages, 6 figures
An Anthropology for 'the Assemblage of the Now'
Creators: name: West, Paige
Publisher: name: Columbia University
Year: 2016
Subjects: subject: Anthropology
subject: FOS: Sociology
subject: Biodiversity conservation--Social aspects
subject: Conservation of natural resources--Social aspects
subject: Anthropology--Environmental aspects
subject: Ethnology
subject: Ecology
subject: FOS: Biological sciences
subject: Conservation biology

description: This paper discusses the past and future of the anthropology of conservation and environmental anthropology.
title: Sophie von Braunschweig-Lüneburg-Hannover
title: An entry in the LCA Online Dictionary of Leibniz’s Correspondents and Acquaintances
titleType: Subtitle
Creators: name: (:Tba)
Publisher: name: LCA Project
Year: 2018

description: Sophie von Braunschweig-Lüneburg-Hannover as a personal relation of Leibniz’s: The resource presents biographical information on a correspondent of Leibniz's
Quantum criticality of dipolar spin chains
Creators: name: Isidori, Aldo
name: Ruppel, Annika
name: Kreisel, Andreas
name: Kopietz, Peter
name: Mai, Alexander
name: Noack, Reinhard M.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We show that a chain of Heisenberg spins interacting with long-range dipolar forces in a magnetic field h perpendicular to the chain exhibits a quantum critical point belonging to the two-dimensional Ising universality class. Within linear spin-wave theory the magnon dispersion for small momenta k is [Delta^2 + v_k^2 k^2]^{1/2}, where Delta^2 \propto |h - h_c| and v_k^2 \propto |ln k|. For fields close to h_c linear spin-wave theory breaks down and we investigate the system using density-matrix and functional renormalization group methods. The Ginzburg regime where non-Gaussian fluctuations are important is found to be rather narrow on the ordered side of the transition, and very broad on the disordered side.
description: 6 pages, 5 figures
title: Sophie Wilhelmine von Waldeck
title: An entry in the LCA Online Dictionary of Leibniz’s Correspondents and Acquaintances
titleType: Subtitle
Creators: name: (:Tba)
Publisher: name: LCA Project
Year: 2018

description: Sophie Wilhelmine von Waldeck as a personal relation of Leibniz’s: The resource presents biographical information on a correspondent of Leibniz's
title: Ezechiel Spanheim
title: An entry in the LCA Online Dictionary of Leibniz’s Correspondents and Acquaintances
titleType: Subtitle
Creators: name: (:Tba)
Publisher: name: LCA Project
Year: 2018

description: Ezechiel Spanheim as a personal relation of Leibniz’s: The resource presents biographical information on a correspondent of Leibniz's
How weak values emerge in joint measurements on cloned quantum systems
Creators: name: Hofmann, Holger F.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: A statistical analysis of optimal universal cloning shows that it is possible to identify an ideal (but non-positive) copying process that faithfully maps all properties of the original Hilbert space onto two separate quantum systems. The joint probabilities for non-commuting measurements on separate clones then correspond to the real parts of the complex joint probabilities observed in weak measurements on a single system, where the measurements on the two clones replace the corresponding sequence of weak measurement and post-selection. The imaginary parts of weak measurement statics can be obtained by replacing the cloning process with a partial swap operation. A controlled-swap operation combines both processes, making the complete weak measurement statistics accessible as a well-defined contribution to the joint probabilities of fully resolved projective measurements on the two output systems.
description: 4 pages, major changes to title and introduction, improved explanation of weak measurement statistics
Nurse managers and certified practice in British Columbia
Creators: name: Stevenson, Janine Marie
Publisher: name: University of British Columbia
Year: 2012

description: The new Health Professions Act (HPA) is umbrella legislation that represents a change in health policy. Some activities that nurses historically performed under medical delegation like diagnosis and treatment of sexually transmitted infections (STI) are no longer allowed unless additional training and certification occurs. As a result of their role in the system, nurse managers were given the responsibility for implementing certified practice. The purpose of this study was to explore the experience of nurse managers in leading the implementation of certified practice in order to gain some understanding of the process of change management in our health care system. I chose complexity theory as a lens to understand change in the healthcare system because it emphasizes connection and inter-relationship. I undertook an interpretative descriptive study to analyze the events and contextual factors that have impacted the nurse manager’s experience of implementing certified practice. I conducted nine semistructured interviews in one-on-on and group formats with a total of sixteen nurse managers. Thematic analysis of the data revealed two overarching and inter-related themes, namely (a) consistency with nursing values; and (b) structural constraints. The first theme comprised three sub-categories: autonomy, recognition and role clarity. The second theme, structural constraints, had three sub-categories: multiple models of practice; training and education barriers; and competing system changes. Certified nursing practice is consistent with the goals of the nursing profession of being a regulated and recognized profession; however multiple and competing challenges constrained attainment of these benefits. This study aligned with the existing research on change management in the healthcare system in that it identified what is required for successful implementation of a new health policy. The barriers that were identified also aligned with the literature. The theme of multiple models of practice has not previously been reported. This research highlights the difficulties of a complex system that is comprised of different parts that may operate independently when in truth they are highly inter-related. When this is not taken into consideration, miscommunication and competing system demands can interfere in the implementation of new health policy such as STI certified practice.
MPEC 2025-F207 : 2025 DG55
Creators: name: Minor Planet Center Staff
Publisher: name: The Minor Planet Center
Year: 2025
Subjects: subject: Small Solar System bodies
valueUri: http://astrothesaurus.org/uat/1469
subject: 2025 DG55

description: The Minor Planet Electronic Circulars contain information on unusual minor planets, routine data on comets and natural satellites, and occasional editorial announcements.  They are published on behalf of Division F of the International Astronomical Union by the Minor Planet Center, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
title: Johan Gabriel Sparwenfeld
title: An entry in the LCA Online Dictionary of Leibniz’s Correspondents and Acquaintances
titleType: Subtitle
Creators: name: (:Tba)
Publisher: name: LCA Project
Year: 2018

description: Johan Gabriel Sparwenfeld as a personal relation of Leibniz’s: The resource presents biographical information on a correspondent of Leibniz's
Translation, Value and Space: Theorizing an Ethnographic and Engaged Environmental Anthropology
Creators: name: West, Paige
Publisher: name: Columbia University
Year: 2005
Subjects: subject: Anthropology
subject: FOS: Sociology
subject: Ethnology
subject: Conservation of natural resources--Citizen participation
subject: Biodiversity conservation--Citizen participation
subject: Gimi language
subject: Anthropology--Environmental aspects
subject: Ecology
subject: FOS: Biological sciences
subject: Conservation biology

description: In this article, I argue for placing the politics of translation and theories of value and spatial production at the center of environmental anthropology. For the past ten years, the Gimi-speaking peoples living in Maimafu village, Papua New Guinea, have taken part in an integrated conservation and development project attempting to foster a local system of valuing “nature” by tying biological diversity to economic markets through the creation of “eco-enterprises.” However, the project fails to consider how Gimi produce, theorize, transmit, and express knowledge. Using ethnographic material concerned with hunting and song composition, I show that Gimi understand their forests to be part of a series of transactive dialectical relationships that work to produce identity and space. I also demonstrate that, as part of this project, Gimi social relations with their forests have been translated in ways that fit their beliefs into generic and easily understandable categories. This has been detrimental to the conservation project and it is politically problematic for an engaged environmental anthropology.
title: Leitlinien für den Betrieb des Publikationsservice der TU Darmstadt – TUprints
Creators: name: Universitäts- Und Landesbibliothek Darmstadt
Publisher: name: UNSPECIFIED
Year: 2025

description: Der Publikationsservice der Technischen Universität Darmstadt - TUprints - bietet die organisatorischen
und technischen Rahmenbedingungen zur elektronischen Publikation wissenschaftlicher Dokumente im
Sinne des offenen und freien Zugangs zu Wissenschaft, Lehre und Forschung im Internet.
Measurements of Stellar Inclinations for Kepler Planet Candidates
Creators: name: Hirano, Teruyuki
name: Sanchis-Ojeda, Roberto
name: Takeda, Yoichi
name: Narita, Norio
name: Winn, Joshua N.
name: Taruya, Atsushi
name: Suto, Yasushi
Publisher: name: arXiv
Year: 2012
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: We present an investigation of spin-orbit angles for planetary system candidates reported by Kepler. By combining the rotational period $P_s$ inferred from the flux variation due to starspots and the projected rotational velocity $V\sin I_s$ and stellar radius obtained by a high resolution spectroscopy, we attempt to estimate the inclination $I_s$ of the stellar spin axis with respect to the line-of-sight. For transiting planetary systems, in which planetary orbits are edge-on seen from us, the stellar inclination $I_s$ can be a useful indicator of a spin-orbit alignment/misalignment. We newly conducted spectroscopic observations with Subaru/HDS for 15 KOI systems, whose lightcurves show periodic flux variations. After detailed analyses of their lightcurves and spectra, it turned out that some of them are binaries, or the flux variations are too coherent to be caused by starspots, probably representing ellipsoidal variations, and consequently we could constrain stellar inclinations $I_s$ for eight systems. Among them, KOI-262 and 280 are in good agreement with $I_s=90^\circ$ suggesting a spin-orbit alignment, while at least one system, KOI-261, shows a possible spin-orbit misalignment. We also obtain a small $I_s$ for KOI-1463, but the transiting companion seems to be a star rather than a planet. The results for KOI-257, 269, 367, and 974 are ambiguous, and can be explained with either misalignments or moderate differential rotation. Since our method can be applied to any system having starspots regardless of the planet size, future observations will allow for the expansion of the parameter space in which the spin-orbit relations are investigated.
description: 12 pages, 12 figures; accepted for publication in ApJ
Transcription regulation of two natural killer cell activating receptors, NKG2D and NCR1
Creators: name: Lai, Chieh Min
Publisher: name: University of British Columbia
Year: 2012

description: Natural Killer (NK) immune lymphocytes are mainly known to eliminate cancerous and virus infected cells. When they encounter another host cell, they utilize surface receptors to scan the target cell for telltale disease-associated ligands. Therefore, these receptors play a central role in regulating NK cell effector functions that include direct cytotoxicity and cytokine release. NKG2D and NCR1 are among the most studied NK receptors identified to date. NKG2D binds a range of stress induced MHC class I like ligands while NCR1 binds the viral protein, haemagglutinin, as well as unidentified tumour ligands. Knockout mouse models have highlighted the importance of these receptors in combating tumorigenesis, virus infections, and in the development of autoimmune disorders. The expression of these receptors is specific: NKG2D is expressed only on NK cells and a minority of T cell subsets while NCR1 is even more restricted to the NK lineage. Yet the basis behind the transcriptional regulation of NKG2D and NCR1 has remained a mystery. I have found genetic and epigenetic mechanisms that control the expression of the receptors, including involvement of a retrotransposon in regulation of the mouse Nkg2d gene. Luciferase assays were used to delineate crucial DNA elements such as promoters and enhancers. Bioinformatic and RNA expression techniques have led to the discovery of GABP, RUNX3 and RUNX1 as regulators of NKG2D and NCR1. The role of these transcription factors were verified using gel shift, chromatin immunoprecipitation, knockdown, dominant negative and overexpression experiments. My results shed light on transcription regulation of crucial NK receptors. At the same time, it allows me to make inferences on the NK genetic regulatory program.
Anti-Virus in Silicon
Creators: name: Tang, Beng Chiew
name: Demme, John David
name: Sethumadhavan, Simha
name: Stolfo, Salvatore
Publisher: name: Columbia University
Year: 2015
Subjects: Virus inhibitors
Computer security
Malware (Computer software)
Computer software
Coupled problems (Complex systems)
Computer science

description: Anti-virus (AV) software is fundamentally broken. AV systems today rely on correct functioning of not only the AV software but also the underlying OS and VMM. Thus proper functioning of software AV requires millions of lines of complex code – which houses thousands of bugs – to work correctly. Needless to say, and as evidenced in numerous software AV attacks, effective software AV systems have been difficult to build. At the same time, malware incidents are increasing and there is strong demand for good anti-virus solutions; the software anti-virus market is estimated at close to 8B dollars annually.
In this work we present a new class of robust AV systems called Silicon anti-virus systems. Unlike software AV systems, these systems are lean and mostly implemented in hardware to avoid reliance on complex software, but, like software AV systems, are updatable in the field when new malware is encountered. We describe the first generation of silicon AV that uses simple machine learning techniques with existing performance counter infrastructure. Our published and unpublished work shows that common malware such as viruses and adware, and even zero day exploits can be detected accurately. These systems form a very effective first-line, energy- efficient defense against malware.