100,972 research outputs found
Letter, [Author unclear] to Paulina T. Merritt
No full textHandwritten letter to Paulina Merritt from an unknown author, October 1, 1876.
Valuing Easements: Some Experimental Evidence
No full textTrefzger and Munneke (1998) present a theoretical model, where the surplus that an easement gives rise to will be split equally between the parties. We provide experimental evidence from Sweden indicating that the split of the surplus depends on the context and what is judged to be reasonable principles of a fair distribution. The dominant estates got a significantly higher share of the surplus because they could start the bargaining with a bid that only included compensation for cost, whereas the servient estate could not find any principle that would give them the whole surplus. After these initial asymmetric bids, the parties usually met halfway.
Handwritten biographical information on Paulina T. McClung Merritt
No full textA handwritten biography of Paulina T. McClung Merritt by an unknown author, 1892.
Heterogeneous and tissue-specific regulation of effector T cell responses by IFN-gamma during Plasmodium berghei ANKA infection.
No full textIFN-γ and T cells are both required for the development of experimental cerebral malaria during Plasmodium berghei ANKA infection. Surprisingly, however, the role of IFN-γ in shaping the effector CD4(+) and CD8(+) T cell response during this infection has not been examined in detail. To address this, we have compared the effector T cell responses in wild-type and IFN-γ(-/-) mice during P. berghei ANKA infection. The expansion of splenic CD4(+) and CD8(+) T cells during P. berghei ANKA infection was unaffected by the absence of IFN-γ, but the contraction phase of the T cell response was significantly attenuated. Splenic T cell activation and effector function were essentially normal in IFN-γ(-/-) mice; however, the migration to, and accumulation of, effector CD4(+) and CD8(+) T cells in the lung, liver, and brain was altered in IFN-γ(-/-) mice. Interestingly, activation and accumulation of T cells in various nonlymphoid organs was differently affected by lack of IFN-γ, suggesting that IFN-γ influences T cell effector function to varying levels in different anatomical locations. Importantly, control of splenic T cell numbers during P. berghei ANKA infection depended on active IFN-γ-dependent environmental signals--leading to T cell apoptosis--rather than upon intrinsic alterations in T cell programming. To our knowledge, this is the first study to fully investigate the role of IFN-γ in modulating T cell function during P. berghei ANKA infection and reveals that IFN-γ is required for efficient contraction of the pool of activated T cells
Dispelling the Myths Behind First-author Citation Counts
No full textWe conducted a full-scale evaluative citation analysis study of scholars in the XML research field to explore just how different from each other author rankings resulting from different citation counting methods actually are, and to demonstrate the capability of emerging data and tools on the Web in supporting more realistic citation counting methods. Our results contest some common arguments for the continued
use of first-author citation counts in the evaluation of scholars, such as high correlations between author rankings by first-author citation counts and other citation
counting methods, and high costs of using more realistic citation counting methods that are not well-supported by the ISI databases. It is argued that increasingly available digital full text research papers make it possible for citation analysis studies to go beyond what the ISI databases have directly supported and to employ more
sophisticated methods
Projection operator approach to the Bose-Hubbard model
No full textWe develop a projection operator formalism for studying both the zero-temperature equilibrium phase diagram and the nonequilibrium dynamics of the Bose-Hubbard model. Our work, which constitutes an extension of that of Trefzger and Sengupta [ Phys. Rev. Lett. 106 095702 (2011)], shows that the method provides an accurate description of the equilibrium zero-temperature phase diagram of the Bose-Hubbard model for several lattices in two and three dimensions. We show that the accuracy of this method increases with the coordination number z0 of the lattice and reaches to within 0.5% of quantum Monte Carlo data for lattices with z0=6. We compute the excitation spectra of the bosons using this method in the Mott and the superfluid phases and compare our results with mean-field theory. We also show that the same method may be used to analyze the nonequilibrium dynamics of the model both in the Mott phase and near the superfluid-insulator quantum critical point where the hopping amplitude J and the on-site interaction U satisfy z0J/U«1. In particular, we study the nonequilibrium dynamics of the model both subsequent to a sudden quench of the hopping amplitude J and during a ramp from Ji to Jf characterized by a ramp time τ and exponent α: J(t)=Ji+(Jf−Ji)(t/τ)α. We compute the wave function overlap F, the residual energy Q, the superfluid order parameter Δ(t), the equal-time order parameter correlation function C(t), and the defect formation probability P for the above-mentioned protocols and provide a comparison of our results to their mean-field counterparts. We find that Q, F, and P do not exhibit the expected universal scaling. We explain this absence of universality and show that our results for linear ramps compare well with the recent experimental observations
Public Land Use Constraints: Lot and House Configuration
No full textThe public sector constrains the size and shape of lots and buildings via zoning ordinances and subdivision regulations. Zoning ordinances utilize setback requirements, open space ratios, minimum lot area and floor-to-area ratios. Subdivision regulations utilize street and sidewalk spacing requirements. This article provides a framework in which one can analyze the precise impact of these control devices. The choice of developers who face these controls is discussed in terms of a rule of thumb and in terms of a model of profit maximization.
Pelevin’s Trinity in the novel “t”: author – protagonist – reader
No full textThe article attempts to interpret Pelevin's artistic strategy in the novel "T" by exploring its subject organization and addressing the key problems of the author, the protagonist, and the reader as they are seen by the researcher. The article analyzes the peculiarities of constructing the narrative reality in the novel "T", and goes on to discuss Pelevin's philosophic models of the development of the humankind, and the emergence of his new anthropology
The precision drift chambers for the ATLAS muon spectrometer
No full textThe parameters of the stand-alone muon system have been optimised to detect, also as a stand-alone system, the standard model Higgs boson as well as supersymmetric particles. The momentum resolution is typically 2-3% over most of the \eta range up to eta =2.7. Above 200 GeV of transverse momentum (p/sub T/) position measurement and alignment errors begin to dominate and the resolution decreases to 10% at p/sub T/=1 TeV. The bulk of the magnet volume is instrumented with monitored drift tubes 3 cm in diameter, each having a spatial resolution of typically 80 mu m using an Ar-CO/sub 2/ mixture at 3 bar. (3 refs)
Measuring industry-science links through inventor-author relations: A profiling method
No full textIn this pilot study we examine the performance of text-based profiling in recovering a set of validated inventor-author links. In a first step we match patents and publications solely based on their similarity in content. Next, we compare inventor and author names on the highest ranked matches for the occurrence of name matches. Finally, we compare these candidate matches with the names listed in a validated set of inventor-author names. Our text-based profile methodology performs significantly better than a random matching of patents and publications, suggesting that text-based profiling is a valuable complementary tool to the name searches used in previous studies.innovation; industry-science links; text-based profiling;
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