cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Confounding
Creators: name: Stellman, Steven D.
Publisher: name: Columbia University
Year: 1987
Subjects: Oncology
Epidemiology

description: The magnitude of confounding is examined in nine case studies of two "weak" relationships: between artificial sweeteners and bladder cancer, and between oral contraceptives and cervical dysplasia. Confounding had little or no influence on the results of any published study. The responsible epidemiologist must always consider the possibility of confounding, no less when associations are weak than when they are strong. Identification of potentially confounding variables is an integral part of good epidemiologic practice. Rarely, however, does confounding itself, especially from unidentified sources, live up to its reputation for introducing seriously spurious associations. An investigator is more likely to be led astray by undetected biases than by pure confounding.
Growth and superconducting properties of F-substituted ROBiS2 (R = La, Ce, Nd) single crystals
Creators: name: Nagao, Masanori
name: Miura, Akira
name: Demura, Satoshi
name: Deguchi, Keita
name: Watauchi, Satoshi
name: Takei, Takahiro
name: Takano, Yoshihiko
name: Kumada, Nobuhiro
name: Tanaka, Isao
Publisher: name: arXiv
Year: 2013
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: F-substituted ROBiS2 (R = La, Ce, Nd) superconducting single crystals with different F concentration were grown successfully using CsCl/KCl flux. All the obtained single crystals had a plate-like shape with a well-developed ab-plane of 1-2 mm in size. The flux components of Cs, K, and Cl were not detected in the obtained single crystals by electron probe microanalysis. The grown single crystals of F-substituted LaOBiS2 and CeOBiS2 showed superconducting at about 3 K while the Tc of the F-substituted NdOBiS2 exhibited approximately 5 K. The superconducting anisotropy of the single crystals of F-substituted LaOBiS2 and NdOBiS2 was estimated to be 30-45 according to the effective mass model whereas those values were 13-21 for the F-substituted CeOBiS2 single crystals. The F-substituted CeOBiS2 single crystals exhibited magnetic order at about 7 K that apparently coexisted with superconductivity below around 3 K.
Tolman IV solution in the Randall-Sundrum Braneworld
Creators: name: Ovalle, J
name: Linares, F
Publisher: name: arXiv
Year: 2013
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: In the context of the Randall-Sundrum braneworld, the minimal geometric deformation approach (MGD) is used to generate an exact analytic interior solution to four-dimensional effective Einstein's field equations for a spherically symmetric compact distribution. This solution represents the braneworld version of the well known Tolman IV solution in General Relativity. By using this analytic solution, an exhaustive analysis of the braneworld effects on realistic stellar interiors is developed, finding strong evidences in favor of the hypothesis that compactness is reduced due to bulk effects on stellar configurations.
description: 17 pages. Version to be published in Physical Review D
Universality of graphs with few triangles and anti-triangles
Creators: name: Hefetz, Dan
name: Tyomkyn, Mykhaylo
Publisher: name: arXiv
Year: 2014
Subjects: subject: Combinatorics (math.CO)
subject: FOS: Mathematics

description: We study 3-random-like graphs, that is, sequences of graphs in which the densities of triangles and anti-triangles converge to 1/8. Since the random graph ${\mathcal G}_{n,1/2}$ is, in particular, 3-random-like, this can be viewed as a weak version of quasirandomness. We first show that 3-random-like graphs are 4-universal, that is, they contain induced copies of all 4-vertex graphs. This settles a question of Linial and Morgenstern. We then show that for larger subgraphs, 3-random-like sequences demonstrate a completely different behaviour. We prove that for every graph $H$ on $n\geq R(10,10)$ vertices there exist 3-random-like graphs without an induced copy of $H$. Moreover, we prove that for every $\ell$ there are 3-random-like graphs which are $\ell$-universal but not $m$-universal when $m$ is sufficiently large compared to $\ell$.
description: 12 pages
Individual-level Employment Transitions in Rural Viet Nam
Creators: name: Quang-Thanh Ngo
name: Thuy-Khanh Hong Thai
name: Van-Tien Cao
name: Anh-Tuan Nguyen
name: Ngoc-Hieu Hoang
name: Ngoc-Danh Nguyen
name: Quang-Thanh Ngo
name: Thuy-Khanh Hong Thai
name: Van-Tien Cao
name: Anh-Tuan Nguyen
name: Ngoc-Hieu Hoang
name: Ngoc-Danh Nguyen
Publisher: name: Unknown
Year: 2020
Subjects: subject: Agribusiness
subject: Agricultural and Food Policy
subject: Agricultural Finance
subject: Community/Rural/Urban Development
subject: Farm Management
subject: Individual-level employment transitions;
subject: non-transient farm (persistent farm);
subject: positive transient farm;
subject: out-of-wage transition;
subject: transitory farm-household work,
subject: transitory wage-household work;
subject: rural transformation.

description: Structural transformation in rural areas is a key issue in economic development. While much of the literature on structural transformation has so far focussed on household- or commune levels or even higher aggregate levels, little is known about the individual member level. The paper aims at examining factors that affect the individual-level employment rural transitions in Viet Nam, namely: (1) non-transient farm; (2) positive transient farm; (3) out-of-wage transition; (4) transitory farm-household work; and (5) transitory wage-household work. By taking advantage of the Viet Nam Access to Resources Household Survey with data on 2,698 individuals for two years, 2008 and 2016, using multivariate probit models estimated by generalized structural equation method, we find that individual-level human capital and social capital are important factors affecting employment transition status in the rural area. In addition, changes in individual and household characteristics and local climate conditions at commune level are important to influence various types of employment transitions. These results have implications for the development policy on rural transition in developing countries, highlighting the importance of recognizing the positive aspects of changes in individual-, household-, and commune-levels for rural transformation. Promotion of education attainment is necessary at both individual- and household-level to spur the transition out of farming. Broadened policy mechanisms which support and encourage non-farm employment at the household level are also needed. Likewise, development initiatives that focus on increasing the human and social assets of the individual farmers and farming households are more likely to be successful in supporting livelihood diversification and reducing vulnerability.
The Effect of Student Learning Styles on the Learning Gains Achieved When Interactive Simulations Are Coupled with Real-Time Formative Assessment via Pen-Enabled Mobile Technology
Creators: name: Kowalski, F. V.
name: Kowalski, S. E.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Physics Education (physics.ed-ph)
subject: FOS: Physical sciences

description: This paper describes results from a project in an undergraduate engineering physics course that coupled classroom use of interactive computer simulations with the collection of real-time formative assessment using pen-enabled mobile technology. Interactive simulations (free or textbook-based) are widely used across the undergraduate science and engineering curriculia to help actively engaged students increase their understanding of abstract concepts or phenomena which are not directly or easily observable. However, there are indications in the literature that we do not yet know the pedagogical best practices associated with their use to maximize learning. This project couples student use of interactive simulations with the gathering of real-time formative assessment via pen-enabled mobile technology (in this case, Tablet PCs). The research question addressed in this paper is: are learning gains achieved with this coupled model greater for certain types of learners in undergraduate STEM classrooms? To answer this, we correlate learning gains with various learning styles, as identified using the Index of Learning Styles (ILS) developed by Felder and Soloman. These insights will be useful for others who use interactive computer simulations in their instruction and other adopters of this pedagogical model; the insights may have broader implications about modification of instruction to address various learning styles.
description: 6 pages 2 tables and 1 figure
Chapter 1 : Hybrid Segmentation Methods
Creators: name: Imielinska, Celina Z.
name: Jin, Yinpeng
name: Angelini, Elsa D.
name: Metaxas, Dimitris
name: Udupa, Jayaram K.
name: Chen, Ting
name: Zhuge, Ying
Publisher: name: Columbia University
Year: 2004
Subjects: subject: Bioinformatics
subject: FOS: Computer and information sciences
subject: Biomedical engineering
subject: Diagnostic imaging

description: We propose a Hybrid Segmentation Engine that consists of component modules, for automated segmentation of radiological patient and the Visible Human data. We integrate boundary-based and region-based segmentation methods to exploit the strength of each method hopefully to cover the weakness of the other method.
Dynamically corrected gates for qubits with always-on Ising couplings: Error model and fault-tolerance with the toric code
Creators: name: De, Amrit
name: Pryadko, Leonid P.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Quantum Physics (quant-ph)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Atomic and Molecular Clusters (physics.atm-clus)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: We describe how a universal set of dynamically-corrected quantum gates can be implemented using sequences of shaped decoupling pulses on any qubit network forming a sparse bipartite graph with always-on Ising interactions. These interactions are constantly decoupled except when they are needed for two-qubit gates. We analytically study the error operators associated with the constructed gates up to third order in the Magnus expansion, analyze these errors numerically in the unitary time evolution of small qubit clusters, and give a bound on high-order errors for qubits on a large square lattice. We prove that with a large enough toric code the present gate set can be used to implement a fault-tolerant quantum memory.
A Theoretically Based Model of Rat Personality with Implications for Welfare
Creators: name: Franks, Kathryn Rebecca
name: Higgins, Edward Tory
name: Champagne, Frances Anne
Publisher: name: Columbia University
Year: 2014
Subjects: subject: Animal behavior
subject: Psychology
subject: FOS: Psychology
subject: Ethics

description: As animal personality research becomes more central to the study of animal behavior, there is increasing need for theoretical frameworks addressing its causes and consequences. We propose that regulatory focus theory (RFT) could serve as one such framework while also providing insights into how animal personality relates to welfare. RFT distinguishes between two types of approach motivation: promotion, the motivation to approach gains, and prevention, the motivation to approach or maintain safety. Decades of research have established the utility of RFT as a model of human behavior and recent evidence from zoo-housed primates and laboratory rats has suggested that it may be applicable to nonhuman animal behavior as well. Building on these initial studies, we collected data on 60 rats, Rattus norvegicus, navigating an automated maze that allowed individuals to maintain darkness (indicative of prevention/safety-approach motivation) and/or activate food rewards (indicative of promotion/gain-approach motivation). As predicted, both behaviors showed stable individual differences (Ps <0.01) and were inversely associated with physiological signs of chronic stress, possibly indicating poor welfare (Ps <0.05). Subsequently, half the rats were exposed to a manageable threat (noxious novel object) in the homecage. Re-testing in the maze revealed that threat exposure increased darkness time achieved (P<0.05), suggesting a mechanism by which prevention motivation may be enhanced. These results point toward the potential utility of RFT as a model for animal behavior and welfare.
Understanding Synchronicity
Creators: name: Ljubičić, Mario
Publisher: name: Zenodo
Year: 2021
Subjects: synchronicity, complete relativity, solar system

description: At the time of this writing, synchronicity is still not recognized as real phenomena by mainstream science.

 However, theory of Complete Relativity, together with evidence provided in the analysis of the Solar System shows that synchronicity is not only real, but a phenomena essential for evolution of energy (life).

 Here, synchronicity is defined and discussed in light of personally and globally experienced, but unrecognized, events of synchronicity.
Non abelian hydrodynamics and heavy ion collisions
Creators: name: Calzetta, Esteban
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The goal of the relativistic heavy ion collisions (RHIC) program is to create a state of matter where color degrees of freedom are deconfined. The dynamics of matter in this state, in spite of the complexities of quantum chromodynamics, is largely determined by the conservation laws of energy momentum and color currents. Therefore it is possible to describe its main features in hydrodynamic terms, the very short color neutralization time notwithstanding. In this lecture we shall give a simple derivation of the hydrodynamics of a color charged fluid, by generalizing the usual derivation of hydrodynamics from kinetic theory to the non abelian case.
description: Talk given at the 5th Leopoldo Garc\'ia-Col\'in Mexican Meeting on Mathematical and Experimental Physics, Mexico City, September 9 - 13, 2013
Formulating Weak Lensing from the Boltzmann Equation and Application to Lens-lens Couplings
Creators: name: Su, S. -C.
name: Lim, Eugene A.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences
subject: 83F05

description: The Planck mission has conclusively detected lensing of the Cosmic Microwave Background (CMB) radiation from foreground sources to an overall significance of greater than $25σ$. The high precision of this measurement motivates the development of a more complete formulation of the calculation of this effect. While most effects on the CMB anisotropies are widely studied through direct solutions of the Boltzmann equation, the non-linear effect of CMB lensing is formulated through the solutions of the geodesic equation. In this paper, we present a new formalism to the calculation of the lensing effect by \emph{directly solving the Boltzmann equation}, as we did in the calculation of the CMB anisotropies at recombination. In particular, we developed a diagrammatic approach to efficiently keep track of all the interaction terms and calculate all possible non-trivial correlations to arbitrary high orders. Using this formalism, we explicitly articulate the approximations required to recover the usual remapping approach used in current studies of the weak lensing. In addition, we point out additional unexplored corrections that are manifest in our formalism to which experiments may be sensitive. As an example, we calculate the correction to the CMB temperature power spectrum for the \emph{lens-lens} coupling effects which are neglected in standard calculations. We find that the correction is $\lesssim 0.1\%$ of the CMB temperature power spectrum for $\ell$ up to 3000 and thus is comparable to the cosmic variance.
description: 25 pages, 3 figures, 4 tables, CMB, lensing
MPEC 2023-M13 : 2023 LA2
Creators: name: Minor Planet Center Staff
Publisher: name: The Minor Planet Center
Year: 2023
Subjects: subject: Small Solar System bodies
valueUri: http://astrothesaurus.org/uat/1469
subject: 2023 LA2

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.
Transmission grid extensions during the build-up of a fully renewable pan-European electricity supply
Creators: name: Becker, Sarah
name: Rodriguez, Rolando A.
name: Andresen, Gorm B.
name: Schramm, Stefan
name: Greiner, Martin
Publisher: name: arXiv
Year: 2013
Subjects: subject: Physics and Society (physics.soc-ph)
subject: FOS: Physical sciences

description: Spatio-temporal generation patterns for wind and solar photovoltaic power in Europe are used to investigate the future rise in transmission needs with an increasing penetration of these variable renewable energy sources (VRES) on the pan-European electricity system. VRES growth predictions according to the official National Renewable Energy Action Plans of the EU countries are used and extrapolated logistically up to a fully VRES-supplied power system. We find that keeping today's international net transfer capacities (NTCs) fixed over the next forty years reduces the final need for backup energy by 13% when compared to the situation with no NTCs. An overall doubling of today's NTCs will lead to a 26% reduction, and an overall quadrupling to a 33% reduction. The remaining need for backup energy is due to correlations in the generation patterns, and cannot be further reduced by transmission. The main investments in transmission lines are due during the ramp-up of VRES from 15% (as planned for 2020) to 80%. Additionally, our results show how the optimal mix between wind and solar energy shifts from about 70% to 80% wind share as the transmission grid is enhanced. Finally, we exemplify how reinforced transmission affects the import and export opportunities of single countries during the VRES ramp-up.
title: Warhafftige vnd erschroeckliche Geschicht, welche sich newlicher Zeit Zugetragen hat, mit einem Jungen Handtwercks vn[d] Schmidtsgesellen, Hansen Schmidt genandt, bürtig von Heydingsfeldt, ob Wirtzburg am Main, im Land zu Francken gelegen; 1589
title: der Jüngsthin vmb das Fest Matthiae Apostoli, dieses 1589. Jars, bey dem Dorff Buchsenham, zwischen Aychstadt vnnd Jngelstadt gelegen, von einer gantzen Legion Teuffeln, hefftig besessen, vnd hernacher ... errettet vn[d] entlediget worden ist ; Allen denen zur Einwarnung, die mit schwartzkünstischen zauberischen Bücher vmbgehen ...
titleType: Subtitle
Creators: name: Schnabel, Johannes
name: Mayr, Simon von Heidingsfeld
name: Pfeiffer, Alexander
Publisher: name: Universitätsbibliothek der Ludwig-Maximilians-Universität München
Year: 2022

description: Vorlageform des Erscheinungsvermerks: Gedruckt Zu Wirtzburg durch Alexandrum Pfeiffern, Wohnhafft in der Wöllergassen. Anno 1589.
Enhancing Byzantine Fault Tolerance: Leaderless and Asynchronous Consensus with Trusted Hardware Assistance
Creators: name: Zhao, Liangrong
Publisher: name: Monash University
Year: 2025
Subjects: classificationCode: 460605
subject: Distributed systems and algorithms

description: This thesis addresses challenges in Byzantine fault-tolerant (BFT) consensus protocols, proposing improvements to resilience, scalability, and performance. A leaderless BFT protocol is introduced using trusted hardware to eliminate the leader bottleneck, reduce communication complexity, and enhance fault tolerance. We propose a trusted protocol Janus that achieves linear message complexity in asynchronous networks. Juno, a hardware-independent protocol, optimizes performance without relying on trusted hardware, using a novel vector consensus approach. Theoretical analysis and experiments show these protocols advance BFT consensus efficiency, with implications for decentralized systems like blockchain, offering both hardware-assisted and independent solutions for fault-tolerant networks.
Nonmuscle Myosin IIA-Dependent Force Inhibits Cell Spreading and Drives F-Actin Flow
Creators: name: Cai, Yunfei
name: Biais, Nicolas
name: Giannone, Gregory
name: Tanase, Monica
name: Jiang, Guoying
name: Hoffman, Jake M.
name: Wiggins, Chris H.
name: Silberzan, Pascal
name: Buguin, Alex
name: Ladoux, Benoit
name: Sheetz, Michael P.
Publisher: name: Columbia University
Year: 2006
Subjects: Biophysics
Cytology

description: Nonmuscle myosin IIA (NMM-IIA) is involved in the formation of focal adhesions and neurite retraction. However, the role of NMM-IIA in these functions remains largely unknown. Using RNA interference as a tool to decrease NMM-IIA expression, we have found that NMM-IIA is the major myosin involved in traction force generation and retrograde F-actin flow in mouse embryonic fibroblast cells. Quantitative analyses revealed that ∼60% of traction force on fibronectin-coated surfaces is contributed by NMM-IIA and ∼30% by NMM-IIB. The retrograde F-actin flow decreased dramatically in NMM-IIA-depleted cells, but seemed unaffected by NMM-IIB deletion. In addition, we found that depletion of NMM-IIA caused cells to spread at a higher rate and to a greater area on fibronectin substrates during the early spreading period, whereas deletion of NMM-IIB appeared to have no effect on spreading. The distribution of NMM-IIA was concentrated on the dorsal surface and approached the ventral surface in the periphery, whereas NMM-IIB was primarily concentrated around the nucleus and to a lesser extent at the ventral surface in cell periphery. Our results suggest that NMM-IIA is involved in generating a coherent cytoplasmic contractile force from one side of the cell to the other through the cross-linking and the contraction of dorsal actin filaments.
CRM and its Importance for Business Competitiveness
Creators: name: Stuchlý, Peter
name: Virágh, Roderik
name: Hallová, Marcela
name: Šilerová, Edita
name: Stuchlý, Peter
name: Virágh, Roderik
name: Hallová, Marcela
name: Šilerová, Edita
Publisher: name: Unknown
Year: 2020
Subjects: subject: Agribusiness
subject: Agricultural and Food Policy
subject: Agricultural Finance
subject: Research and Development/Tech Change/Emerging Technologies
subject: CRM systems,
subject: CRM implementation criteria,
subject: customer value,
subject: business size,
subject: agribusiness,
subject: competitiveness.

description: This paper deals with the Customer Relationship Management (CRM) system with emphasis on the importance for the competitiveness of a business. The aim of the present article is to seek whether a business pursues customer value on a regular basis regardless of its size. Monitoring customer value can thus be one of the criteria that measure the success of implementing an overall customer relationship management concept in a particular business. CRM system is also used in agribusiness.
Level of Financial Literacy and Food Waste in Polish Households
Creators: name: Szafrańska, Monika
name: Krasnodębski, Andrzej
name: Kapsdorferová, Zuzana
name: Szafrańska, Monika
name: Krasnodębski, Andrzej
name: Kapsdorferová, Zuzana
Publisher: name: Unknown
Year: 2020
Subjects: subject: Agribusiness
subject: Agricultural Finance
subject: Food Consumption/Nutrition/Food Safety
subject: Food Security and Poverty
subject: Financial literacy,
subject: food waste,
subject: household awareness,
subject: natural resources,
subject: food chain.

description: The aim of the presented research is to show on food waste and determine the level of financial literacy of food consumers as a factor affecting the probability of occurrence of food waste in Polish households in comparison with selected demographic and economic factors conditioning this phenomenon. The main source of data used for analysis and conclusions was primary information obtained from own research (n=1021, PAPI method). To analyze the data, total statistical indicators, the one-way analysis of variance (the F test) and the logistic regression were used. The conducted analysis demonstrates that among the elements creating financial literacy, only financial attitudes determine consumers' inclination to waste food. The higher the score obtained from this module, the less food is thrown away from households. From the group of factors that significantly determine the occurrence of food wastage, financial attitudes have the weakest impact. The strongest impact has respondent’s education.
Towards Future Oriented Collaborative Policy Development for Rural Areas and People
Creators: name: Miloš Ulman
name: Šimek, Pavel
name: Masner, Jan
name: Kogut, Pavel
name: Löytty, Tuula
name: Crehan, Patrick
name: Charvát, Karel
name: Oliva, Antoni
name: Bergheim, Stein Runar
name: Kalaš, Milan
name: Kolokol, Denis
name: Sabbatini, Tommaso
name: Miloš Ulman
name: Šimek, Pavel
name: Masner, Jan
name: Kogut, Pavel
name: Löytty, Tuula
name: Crehan, Patrick
name: Charvát, Karel
name: Oliva, Antoni
name: Bergheim, Stein Runar
name: Kalaš, Milan
name: Kolokol, Denis
name: Sabbatini, Tommaso
Publisher: name: Unknown
Year: 2020
Subjects: subject: Agribusiness
subject: Agricultural and Food Policy
subject: Agricultural Finance
subject: Community/Rural/Urban Development
subject: Research and Development/Tech Change/Emerging Technologies
subject: Rural areas,
subject: policy,
subject: European Union,
subject: foresight,
subject: text mining,
subject: system dynamics modelling.

description: Rural areas in Europe are at risk due to depopulation, failing generation renewal, and a multitude of influences ranging from market-based, regulatory, to societal and climate changes. As a result, current rural policy is no longer keeping pace with these changes. We propose an advanced rural policy development framework in order to deliver more accurate foresight for rural regions, contributing to new and enhanced policy interventions. The proposed framework combines new quantitative and qualitative epistemological approaches, previously unused unstructured data with traditional research information, grassroot perspective with expert knowledge, current situation analysis with forward looking activities. We argue that by using the proposed methods, policy teams will be able to enhance the effectiveness of their policy making processes, while rural stakeholders will be given the opportunity to become valuable policy influencers and solution co-creators. The ability to quickly experiment and understand the impact of a variety of policy solutions will result in saved time and costs. The framework is part of an ongoing experimental verification and testing in twelve pilot regions across Europe and Israel.
Patch contribution to near-field radiative energy transfer and van derWaals pressure between two half-spaces
Creators: name: Zheng, Yi
name: Narayanaswamy, Arvind
Publisher: name: Columbia University
Year: 2014
Subjects: subject: Mechanical engineering
subject: FOS: Mechanical engineering
subject: Chemistry, Physical and theoretical

description: Near-field effects in fluctuational electrodynamics leads to enhancement of radiative energy transfer as well as the emergence of van der Waals and/or Casimir pressure. While much has been learned from the analysis of near-field interactions between two half-spaces separated by a vacuum gap, we shed new light on the problem by finding how much of a surface patch on one of the half-spaces contributes to the energy transfer or van der Waals pressure at any location within the vacuum gap. We show that energy transfer and fluctuation-induced van der Waals pressure at any point on the surface of one half-space are qualitatively and quantitatively different due to the dissimilar zones of influence of interactions. We also show that the contributions from different surface patches are qualitatively similar for half-spaces with dielectric materials (silica, silicon carbide) and half-spaces with metals (gold).
Contextualizing Hip Hop Sonic Cool Pose in Late Twentieth– and Twenty–first–century Rap Music
Creators: name: Bradley, Regina
Publisher: name: Columbia University
Year: 2012
Subjects: Music

description: In considering the cultural significance of rap music in (mis)conceptualizations
of American identity, it is important to point out commercialized rap’s
attachment to notions of blackness that are presumed irrefutable. Likewise,
constructions of racial discourse in popular culture cannot be divorced from
the effects of capitalism and enterprise on the framework of a twenty–first
century black American experience. While it would be overly simplistic to
dismiss commercial rap music as socially and ethically bankrupt due to the
mass consumption and (over)production of corporatized black narratives,
it is important to identify rap’s corporatization as a mutual investment by
both record labels and artists themselves. Employing regurgitated and thus
normalized scripts of blackness and black manhood is rewarded by monetary
gain and popularity. The artists’ investment in such scripts sustains
public visibility and thus relevance. The commercialization of rap music
simultaneously enables rap to become a gauge of the post–Civil Rights
experience while it becomes commodified and stereotyped. Thus, hip hop
is important in providing alternative forms of negotiating the manifestations—
visual, sonic, and political—of blackness that are mass consumed by
a multi–ethnic audience. One way we can complicate our understanding of
the impetus behind rappers’ performance and identity politics is to examine
their negotiations of “black cool.” Of particular interest to this essay are the
intersections of enterprise and sonic manifestations of black masculine cool
in commercial rap music.
title: Anfänge Des Erniedrigungs-Lauffs Eines Sünders auf Erden in und durch Gnade; 1751
title: in zwey eigenhändigen Aufsätzen hinterlassen
titleType: Subtitle
Creators: name: Rock, Johann Friedrich
Publisher: name: Universitätsbibliothek der Ludwig-Maximilians-Universität München
Year: 2022

description: // In: Aufrichtige und warhaftige Extracta aus dem allgemeinen Diario der wahren Inspirations-Gemeinen. - Sammlung 12.1751, S. [145] - 247
Serre Duality, Abel's Theorem, and Jacobi Inversion for Supercurves Over a Thick Superpoint
Creators: name: Rothstein, Mitchell J.
name: Rabin, Jeffrey M.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Algebraic Geometry (math.AG)
subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: The principal aim of this paper is to extend Abel's theorem to the setting of complex supermanifolds of dimension 1|q over a finite-dimensional local supercommutative C-algebra. The theorem is proved by establishing a compatibility of Serre duality for the supercurve with Poincare duality on the reduced curve. We include an elementary algebraic proof of the requisite form of Serre duality, closely based on the account of the reduced case given by Serre in Algebraic Groups and Class Fields, combined with an invariance result for the topology on the dual of the space of repartitions. Our Abel map, taking Cartier divisors of degree zero to the dual of the space of sections of the Berezinian sheaf, modulo periods, is defined via Penkov's characterization of the Berezinian sheaf as the cohomology of the de Rham complex of the sheaf D of differential operators, as a right module over itself. We discuss the Jacobi inversion problem for the Abel map and give an example demonstrating that if n is an integer sufficiently large that the generic divisor of degree n is linearly equivalent to an effective divisor, this need not be the case for all divisors of degree n.
description: 14 pages
Two-photon spectroscopy of trapped HD$^+$ ions in the Lamb-Dicke regime
Creators: name: Tran, Vu Quang
name: Karr, Jean-Philippe
name: Douillet, Albane
name: Koelemeij, Jeroen C. J.
name: Hilico, Laurent
Publisher: name: arXiv
Year: 2013
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: We study the feasibility of nearly-degenerate two-photon rovibrational spectroscopy in ensembles of trapped, sympathetically cooled hydrogen molecular ions using a resonance-enhanced multiphoton dissociation (REMPD) scheme. Taking advantage of quasi-coincidences in the rovibrational spectrum, the excitation lasers are tuned close to an intermediate level to resonantly enhance two-photon absorption. Realistic simulations of the REMPD signal are obtained using a four-level model that takes into account saturation effects, ion trajectories, laser frequency noise and redistribution of population by blackbody radiation. We show that the use of counterpropagating laser beams enables optical excitation in an effective Lamb-Dicke regime. Sub-Doppler lines having widths in the 100 Hz range can be observed with good signal-to-noise ratio for an optimal choice of laser detunings. Our results indicate the feasibility of molecular spectroscopy at the $10^{-14}$ accuracy level for improved tests of molecular QED, a new determination of the proton-to-electron mass ratio, and studies of the time (in)dependence of the latter.
description: 16 pages, 17 figures
Current-induced skyrmion dynamics in constricted geometries
Creators: name: Iwasaki, Junichi
name: Mochizuki, Masahito
name: Nagaosa, Naoto
Publisher: name: arXiv
Year: 2013
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Magnetic skyrmions, vortex-like swirling spin structures with quantized topological number, observed in chiral magnets, are appealing for potential applications in spintronics because it is possible to control their motion with ultralow current density. In order to realise skyrmion-based spintronic devices, it is essential to understand the skyrmion motions in confined geometries. Here we show by micromagnetic simulations that the current-induced motion of skyrmions in the presence of geometrical boundaries is very different from that in an infinite plane. In a channel with finite width, the transverse confinement results in steady state characteristics of the skyrmion velocity as a function of current similar to those of domain walls in ferromagnets, whereas the transient behaviour depends on the initial distance of the skyrmion from the boundary. In addition, we show that single skyrmions can be created by electric current in a simple constricted geometry of a plate-shaped specimen of suitable size and geometry. These findings could guide the design of skyrmion-based devices, in which skyrmions are used as information carriers.
Exploring the $D^*ρ$ system within QCD sum rules
Creators: name: Torres, A. Martínez
name: Khemchandani, K. P.
name: Nielsen, M.
name: Navarra, F. S.
name: Oset, E.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Nuclear Theory (nucl-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We present a study of the $D^*ρ$ system made by using the method of QCD sum rules to determine the mass of possible resonances generated in the same system. Using isospin and spin projectors, we investigate the different configurations and obtain evidences for three $D^*$ mesons with isospin $I=1/2$, spin S=0, 1, 2 and with masses $2500\pm 67$ MeV, $2523\pm60$ MeV, and $2439\pm119$ MeV, respectively. The last state can be associated with $D^*_2(2460)$ (spin 2) listed by the Particle Data Group, while one of the first two might be related to $D^*(2640)$, with unknown spin-parity. In the case of $I=3/2$ we also find evidences of three states with spin 0, 1 and 2, respectively, with masses $2467\pm82$ MeV, $2420\pm128$ MeV, and $2550\pm56$ MeV. The results for the sector $I=1/2$ and S=0, 1, 2, are intriguingly similar to a previous study of the $D^*ρ$ system based on effective field theories, supporting in this way a molecular picture for the resonances $D^*(2640)$ and $D^*_2(2460)$, while the results for $I=3/2$ hint towards the existence of exotic mesons since a multiquark configuration is required to get the quantum numbers of the states found.
Daniel Trottier, Social Media as Surveillance. Rethinking Visibility in a Converging World, Ashgate, 2012
Creators: name: Mubi Brighenti, Andrea
Publisher: name: Tecnoscienza – Italian Journal of Science & Technology Studies
Year: 2014

description: Tecnoscienza – Italian Journal of Science & Technology Studies, Vol. 4 No. 2 (2013): Tecnoscienza Nr. 8
At the (Semi)Periphery. The Development of Science and Technology Studies in Portugal
Creators: name: Delicado, Ana
Publisher: name: Tecnoscienza – Italian Journal of Science & Technology Studies
Year: 2014

description: This article presents an account of the development of STS in Portugal. It pays particular attention to two dimensions. The first regards the domains typically studied by STS scholars in Portugal, grouped in four sections: studies on the scientific system, laboratory ethnographies, research on science and society and risk case studies. The second is the institutional setting in which STS are undertaken, detailing the institutions, groups, journals and associations in this field. The paper attempts to tie the specificities of Portuguese STS with the characteristics of the local scientific system, showing how themes and analysis are influenced by the “semiperipheral” condition of science in Portugal.
description: Tecnoscienza – Italian Journal of Science & Technology Studies, Vol. 4 No. 2 (2013): Tecnoscienza Nr. 8
Surveillance in Urban Nightscapes. A STS-Informed Perspective
Creators: name: Timan, Tjerk
Publisher: name: Tecnoscienza – Italian Journal of Science & Technology Studies
Year: 2014

description: In the project “Surveillance in Urban Nightscapes”, surveillance practices during the night are investigated in Dutch city centers. Besides organizational surveillance technologies such as Cctv and bodycameras, bottom-up image technologies are invading this nightscape (Octv), in the form of mobile cameras. This shared footage affects both citizens who go for a night out – you never know when and where you might have been filmed – as well as organizational surveillance – the amount of sources for watching and reconstructing events that take place in the city centre increases. Theoretically, this can be seen as gradual change in the landscape of surveillance in (nightly) public spaces. This literature review tries to capture and combine different concepts from three disciplines: urban geography, surveillance and STS. The concluding remarks deal with key concepts derived from combinations of literature and tries to explain why and how a STS-informed analysis is necessary when investigating surveillance in urban nightscapes.
description: Tecnoscienza – Italian Journal of Science & Technology Studies, Vol. 4 No. 2 (2013): Tecnoscienza Nr. 8
Sociotechnical Privacy. Mapping the Research Landscape
Creators: name: Ochs, Carsten
name: Ilyes, Petra
Publisher: name: Tecnoscienza – Italian Journal of Science & Technology Studies
Year: 2014

description: While it is extraordinarily difficult to theoretically specify privacy, in the last 100 years or so (social) psychology, philosophy, communication studies, economics, and, to a lesser degree, also sociology and anthropology, provided attempts to conceptualize its meaning. Be that as it may, from the 1960s onwards privacy discourse has focused upon data, understood as “personal information”, to a certain extent because of the advent of huge databases and information and communication technologies (ICTs). Influential scholarship at the present time tends to conceive of ICT-related privacy in terms of the “sociotechnical”, thus highlighting the interlocking of human and technical agency. Although having developed a manifold of instruments to research sociotechnical phenomena, STS engagement with sociotechnical privacy, so far, has been rather low-key. In our contribution we therefore provide a mapping of the research landscape, identify connecting factors between STS and sociotechnical privacy research, and calling for further STS contributions.
description: Tecnoscienza – Italian Journal of Science & Technology Studies, Vol. 4 No. 2 (2013): Tecnoscienza Nr. 8
title: Gründtlicher vnd nothwendiger Bericht: Was von denen vngestümmen Wettern, verderblichen Hägeln vnd schädlichen Wasserflutten, mit welchen Teutschland, an sehr vielen Orten, in dem 1613. Jahr ernstlich heimgesucht worden, zuhalten seye, waher sie kommen, was sie bedeuten, vnd wie man sich Christlich darinnen erzeigen solle; 1615
title: Geprediget, Am Tag deren beeden H. Aposteln, Petri vnd Pauli, morgens in der Stifftskirchen zu Stuttgardt ...
titleType: Subtitle
Creators: name: Lotter, Tobias
Publisher: name: Universitätsbibliothek der Ludwig-Maximilians-Universität München
Year: 2021

description: Titelbl. in Rot- und Schwarzdr. - Vorlageform des Erscheinungsvermerks: Stuttgardt, Getruckt bey Johann Weyrich Reßlin, Anno M. DC. XV.
Technologically Dense Environments: What For? What Next?
Creators: name: Bruni, Attila
name: Pinch, Trevor
name: Schubert, Cornelius
Publisher: name: Tecnoscienza – Italian Journal of Science & Technology Studies
Year: 2014

description: This conversation stems from and relies on the lectures presented by the three authors at the second STS Italia Summer School (2013 June 12-14, Ostuni, Italy). The text by Attila Bruni portrays in an impressionistic (and partly ironical) way the "genesis and development of a scientific fact", namely technologically dense environments (TDEs), sketching some of its basic characteristics and antescedents. Trevor Pinch, again in a personal anecdotal style, offers various examples of mundane interactions with technologies in dense and less dense environments, underlining how sociomateriality must always be unpacked, beside any innate or transformative properties of the materials themselves. Cornelius Schubert, finally, rather than closing the conversation, offers a case in point, focusing on improvisations in TDEs and, in particular, in medical practice.
description: Tecnoscienza – Italian Journal of Science & Technology Studies, Vol. 4 No. 2 (2013): Tecnoscienza Nr. 8
Geni ribelli. La scienza aperta nell'immagine pubblica di due biologi
Creators: name: Delfanti, Alessandro
Publisher: name: Tecnoscienza – Italian Journal of Science & Technology Studies
Year: 2014

description: Open science is a form of knowledge production that relies on the open sharing of information through digital media. In this article I wonder which scientists’ cultural elements sustain new open science practices. Against the celebrations of the revival of a 20th century Mertonian ethos of disinterest, I suggest that an ethos of openness can include justifications related to sharing as well as features such as anti-bureaucracy rebellion, hedonism and search for profit. It is a recombination of the modern scientist’s ethos with cultural systems related to hacking and information technologies. To show this emergence and thus the importance of hacker cultures for contemporary societies, I studied the public images related to the establishing of two open access genetic databases, and in particular the two biologists who lead those projects: Ilaria Capua and Craig Venter. This recombination maintains an ambivalence: while both cases are geared against today’s incumbents’ concentration of power, the justificatory system they have in common does not exclude entrepreneurship and profit.
description: Tecnoscienza – Italian Journal of Science & Technology Studies, Vol. 4 No. 2 (2013): Tecnoscienza Nr. 8
Solar Flares with an Exponential Growth of the Emission Measure in the Impulsive Phase Derived from X-ray Observations
Creators: name: HAN
name: Fei-Ran
name: LIU
name: Si-Ming
Publisher: name: arXiv
Year: 2013
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: The light curves of solar flares in the impulsive phase are complex in general, indicating that multiple physical processes are involved in. With the GOES (Geostationary Operational Environmental Satellite) observations, we find that there are a subset of flares, whose impulsive phases are dominated by a period of exponential growth of the emission measure. The flares occurred from January 1999 to December 2002 are analyzed, and the results from the observations made with both GOES 8 and GEOS 10 satellites are compared to estimate the instrumental uncertainties. Their mean temperatures during this exponential growth phase have a normal distribution. Most flares within the 1σ range of this temperature distribution belong to the GOES class B or C, with the peak fluxes at the GOES low-energy channel following a log-normal distribution. The growth rate and duration of the exponential growth phase also follow a lognormal distribution, in which the duration is distributed in the range from half a minute to about half an hour. As expected, the growth time is correlated with the decay time of the soft X-ray flux. We also find that the growth rate of the emission measure is strongly anti-correlated with the duration of the exponential growth phase, and the mean temperature increases slightly with the increase of the growth rate. The implications of these results on the study of energy release in solar flares are discussed in the end.
description: 10 figures
Exploiting Uncertainty and Ambiguity in Policymaking. Hong Kong and Investment in the Pearl River Delta Region
Creators: name: Sharif, Naubahar
Publisher: name: Tecnoscienza – Italian Journal of Science & Technology Studies
Year: 2014

description: Drawing on a case study on Hong Kong government policymaking, this paper identifies a potentially fruitful intersection between science and technology studies (STS) and policy studies whereby the latter would benefit from conceptual resources originating in STS. Hong Kong has sought stronger economic ties with the Pearl River Delta (PRD) region of Mainland China since the late 1990s, using social and economic indicators to promote increased investment in the region. During this process Hong Kong effectively expunged uncertainty (creating a “certainty trough”) while constructing a definitive representation of the PRD region to serve as a social technology in public policy discourse. The paper argues that the government exploited a form of interpretive uncertainty – ambiguity – to attract potential investors, suggesting that STS concepts, such as the coproduction of social technologies and MacKenzie’s (1990) “certainty trough”, could be effective tools for analyzing social and economic policymaking.
description: Tecnoscienza – Italian Journal of Science & Technology Studies, Vol. 4 No. 2 (2013): Tecnoscienza Nr. 8
FreeWheel Digital touchpoints design and implementation
Creators: name: Luccarelli, Tiziano
Publisher: name: Zenodo
Year: 2019

description: Deliverable 4.4 “Digital touchpoints design, implementation, and test” comes as the closure of WP4 “Free Wheel service and digital touchpoints design”. With the declared intent of delivering a full mobile app experience, we developed an Android App that is the first and only touchpoint the Customer is going to interact with, collecting data and exchanging them with the cloud-based FreeWheel ecosystem to enable the service delivery team to deal with operations.