598 research outputs found
Cantua dendritica (Polemoniaceae), a New Species from Peru, and Two New Cantua Names
Cantua dendritica is described as new. This species is apparently restricted to the region around Paucartambo, Department of Cusco, Peru. Related to, and frequently identified as, Cantua flexuosa, this new species differs in its glandular calyx, highly branched trichomes on the margin of the corolla lobes, and its softly herbaceous, glandular pilose leaves. In addition, two new names are proposed in Cantua for the two species of Huthia that have been transferred to Cantua, C. volcanica (formerly Huthia caerulea), and C. mediamnis (formerly H. longiflora)
Tech mining: a revisit and navigation
This mini-review arrays the pertinent tools and purposes of âTech Miningâ â shorthand for empirical analyses of Science, Technology and Innovation (ST&I) data. The intent is to introduce the range of tools, and show how they can complement each other. Tech Mining aims to generate powerful intelligence to help manage R&D and innovation processes. We offer a 5-part array to help relate the analytical elements. An overview of a case study of Hybrid and Electric Vehicles illustrates the complexities involved and the potential to generate valuable âintel.
Is there a shift to "active nanostructures"?
It has been suggested that an important transition in the long-run trajectory of nanotechnology development is a shift from passive to active nanostructures. Such a shift could present different or increased societal impacts and require new approaches for risk assessment. An active nanostructure âchanges or evolves its state during its operation,â according to the National Science Foundationâs (2006) Active Nanostructures and Nanosystems grant solicitation. Active nanostructure examples include nanoelectromechanical systems (NEMS), nanomachines, self-healing materials, targeted drugs and chemicals, energy storage devices, and sensors. This article considers two questions: (a) Is there a âshiftâ to active nanostructures? (b) How can we characterize the prototypical areas into which active nanostructures may emerge? We build upon the NSF definition of active nanostructures to develop a research publication search strategy, with a particular intent to distinguish between passive and active nanotechnologies. We perform bibliometric analyses and describe the main publication trends from 1995 to 2008. We then describe the prototypes of research that emerge based on reading the abstracts and review papers encountered in our search. Preliminary results suggest that there is a sharp rise in active nanostructures publications in 2006, and this rise is maintained in 2007 and through to early 2008. We present a typology that can be used to describe the kind of active nanostructures that may be commercialized and regulated in the future
Assessment of fifteen nanotechnology science and engineering centers? (NSECs) Outcomes and impacts: their contribution to NNI objectives and goals
Issued as final reportNational Science Foundation (U.S.
Forecasting Innovation Pathways (FIP) for new and emerging science and technologies
International audience"New" and "Emerging Science" and "Technologies" ("NESTs") have tremendous innovation potential. However this must be weighed against enormous uncertainties caused by many unknowns. The authors of this paper offer a framework to analyze NESTs to help ascertain likely innovation pathways.We have devised a 10-step framework based on extensive Future-oriented Technology Analyses ("FTA") experience, enriched by in-depth case analyses. In the paper, we describe our analytical activities in two case studies. The nanobiosensor experience is contrasted with that of deep brain stimulation in relative quantitative and qualitative emphases.We close the paper by reflecting on this systematic FTA framework for emerging science and technologies, for its intended goal, that is to support decision making
Identifiyng the emerging roles of nanoparticles in biosensors
This paper profiles R&D on the application of nanoparticles in biosensors and explores potential application development pathways. The analysis uses a dataset of nanotechnology publication records for the time period 2001 through 2008 (part year) extracted from the Science Citation Index. It focuses on emergent research activities in the most recent years. Bibliometric analyses are employed to ascertain R&D trends and research networks for key biosensors. Growth models are fit to forecast the technological trend for nanoparticle-enhanced biosensor research activity. In addition, a combination of quantity (publication) and quality (citation) analysis for nanoparticle-enhanced biosensors helps position the leading countries in this research field. Science overlay mapping shows different emphases of nanoparticle-enhanced biosensor research between the US and China, the leading countries. Recent studies suggest that nano-enhanced biosensors show promise for gains in stability, sensitivity, selectivity, and accuracy - for both direct and indirect detection. This paper demonstrates how bibliometric analyses can help anticipate emerging technology development and application potential.<br
Nano-Enabled Drug Delivery: Exploring Cancer Treatment Opportunities
Presented a lecture at the Nano@Tech Meeting on September 23, 2014 at 12:00 p.m. in room 1116 of the Marcus Nanotechnology Building.Alan Porter is Professor Emeritus of Industrial & Systems Engineering, and of Public Policy, at Georgia Tech, where he remains Co-director of the Technology Policy and Assessment Center. He is also Director of R&D for Search Technology, Inc. (Norcross, GA).Jing Ma is completing her PhD at Beijing Institute of Technology (BIT), and has been a visiting scholar at Georgia Tech for 2013-2014. Her research interest is technology innovation management and tech mining. Her current research has been focusing on identifying technology development pathways and opportunities of Nano-Enabled Drug Delivery.Runtime: 50:14 minutesWe compile large sets of nano-related article and patent abstracts. We then analyze these records to learn about changing research emphases to try to project likely future developmental pathways. In this seminar we will focus on Nano-Enabled Drug Delivery (NEDD), considering key emerging topics over time. We will then focus on NEDD being used to treat cancers. We key on 3 dimensions: 1) Which nano components are being researched, 2) To facilitate delivery of which agents (drugs), 3) To treat which cancers. A key aim is to identify R&D opportunities that have not been well-explored yet
Multimode bolometer development for the PIXIE instrument
The Primordial Inflation Explorer (PIXIE) is an Explorer-class mission
concept designed to measure the polarization and absolute intensity of the
cosmic microwave background. In the following, we report on the design,
fabrication, and performance of the multimode polarization-sensitive bolometers
for PIXIE, which are based on silicon thermistors. In particular we focus on
several recent advances in the detector design, including the implementation of
a scheme to greatly raise the frequencies of the internal vibrational modes of
the large-area, low-mass optical absorber structure consisting of a grid of
micromachined, ion-implanted silicon wires. With times the absorbing
area of the spider-web bolometers used by Planck, the tensioning scheme enables
the PIXIE bolometers to be robust in the vibrational and acoustic environment
at launch of the space mission. More generally, it could be used to reduce
microphonic sensitivity in other types of low temperature detectors. We also
report on the performance of the PIXIE bolometers in a dark cryogenic
environment.Comment: 10 pages, 7 figure
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