Question Negotiation and the Technological Environment

The information world is a very different place in 2003 than it was a few years ago. It is possible, for example, to find information more quickly and easily than ever before, using new tools, and drawing on sources of information unavailable or even nonexistent not so very long ago. People seeking answers or providing them now have many more options for question negotiation , in the broadest Tayloresque sense [1]. Consulting an information professional continues to be one of those options. In fact, such professionals can now be much more accessible via these new tools and technologies

Simplified Models for LHC New Physics Searches

This document proposes a collection of simplified models relevant to the design of new-physics searches at the LHC and the characterization of their results. Both ATLAS and CMS have already presented some results in terms of simplified models, and we encourage them to continue and expand this effort, which supplements both signature-based results and benchmark model interpretations. A simplified model is defined by an effective Lagrangian describing the interactions of a small number of new particles. Simplified models can equally well be described by a small number of masses and cross-sections. These parameters are directly related to collider physics observables, making simplified models a particularly effective framework for evaluating searches and a useful starting point for characterizing positive signals of new physics. This document serves as an official summary of the results from the "Topologies for Early LHC Searches" workshop, held at SLAC in September of 2010, the purpose of which was to develop a set of representative models that can be used to cover all relevant phase space in experimental searches. Particular emphasis is placed on searches relevant for the first ~50-500 pb-1 of data and those motivated by supersymmetric models. This note largely summarizes material posted at http://lhcnewphysics.org/, which includes simplified model definitions, Monte Carlo material, and supporting contacts within the theory community. We also comment on future developments that may be useful as more data is gathered and analyzed by the experiments.Comment: 40 pages, 2 figures. This document is the official summary of results from "Topologies for Early LHC Searches" workshop (SLAC, September 2010). Supplementary material can be found at http://lhcnewphysics.or

A review of abnormalities in the perception of visual illusions in schizophrenia

Specific abnormalities of vision in schizophrenia have been observed to affect high-level and some low-level integration mechanisms, suggesting that people with schizophrenia may experience anomalies across different stages in the visual system affecting either early or late processing or both. Here, we review the research into visual illusion perception in schizophrenia and the issues which previous research has faced. One general finding that emerged from the literature is that those with schizophrenia are mostly immune to the effects of high-level illusory displays, but this effect is not consistent across all low-level illusions. The present review suggests that this resistance is due to the weakening of top–down perceptual mechanisms and may be relevant to the understanding of symptoms of visual distortion rather than hallucinations as previously thought

Role of Plastid Protein Phosphatase TAP38 in LHCII Dephosphorylation and Thylakoid Electron Flow

Regulation of photosynthesis efficiency involves reversible phosphorylation of the light-harvesting complex through the activity of the newly identified phosphatase TAP38

The genetic architecture of the human cerebral cortex

The cerebral cortex underlies our complex cognitive capabilities, yet little is known about the specific genetic loci that influence human cortical structure. To identify genetic variants that affect cortical structure, we conducted a genome-wide association meta-analysis of brain magnetic resonance imaging data from 51,665 individuals. We analyzed the surface area and average thickness of the whole cortex and 34 regions with known functional specializations. We identified 199 significant loci and found significant enrichment for loci influencing total surface area within regulatory elements that are active during prenatal cortical development, supporting the radial unit hypothesis. Loci that affect regional surface area cluster near genes in Wnt signaling pathways, which influence progenitor expansion and areal identity. Variation in cortical structure is genetically correlated with cognitive function, Parkinson's disease, insomnia, depression, neuroticism, and attention deficit hyperactivity disorder

Just Curious: Children's Use of Digital Reference for Unimposed Queries and Its Importance in Informal Education

This research investigated the informal use of two children???s digital reference services that were used for purposes unintended by the designers. The motivation for this research was to explore the ways that children bend to their own informal uses the formal tools designed to support their education. Research questions included, How and with what frequency do children use digital reference services to answer their own questions? Do digital reference services support self-initiated learning? Could digital reference services support the transfer of student motivation and curiosity from formal education to informal education? What do instructional and software designers need to consider in creating tools that support a notion of transformed education and learning? Results answered these questions and uncovered several unanticipated fi ndings. Digital reference services were shown to support efforts to interest children in science-related careers as early as fourth or fi fth grade and to support self-initiated learning in science. Unanticipated fi ndings showed that students ask different kinds of questions as they progress through school, and they should receive training in the use of digital reference services in elementary school. Further conclusions provide insights for digital reference software and service design and suggestions for more strategic pedagogical use of digital references services. (from the article)published or submitted for publicatio

Information technology and electronic commerce: Attributes of emerging online business

This research identified and described attributes of online business, from the perspective of managers who market products or services on the World Wide Web. Data were collected from twenty-four interviews with representatives of nineteen online businesses. The use of analytic induction allowed patterns to emerge and enabled the identification and description of attributes of online business. Findings provide a basis on which future research can build, and contribute to the field in several ways. First, the research identified and described thirty seven attributes of online business. Second, it identified and defined the models of online brokers and retailers, a distinction that will allow researchers and practitioners to understand more about the online business environment. Third, the research linked the literatures of marketing and economics, redefined basic terms, and provided a shared vocabulary with which to view the findings. Fourth, implications about product attributes, intermediation, relationship marketing and market position were presented for Web-oriented strategic planning. Implications address questions such as: (1) How will the shift to electronic markets affect business? (2) Will online business change the role of value chain intermediaries? (3) Are new methods emerging to evaluate outcomes of online business? Finally, the findings contributed to management, electronic commerce, marketing and communications, and apprised researchers of the increasing importance of information technology to their realms of study