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Last update: August 15, 2014.
1

Normalized Spectral Similarity Score ( ${\\\\hbox{NS}}^{3}$) as an Efficient Spectral Library Searching Method for Hyperspectral Image Classification  

Microsoft Academic Search

We present a new spectral library search algorithm, referred to as normalized spectral similarity score (NS ), for improved accuracy in airborne hyperspectral image classification. The proposed library search algorithm combines the relative merits of spectral angle and amplitude differences inherent in a hyperspectral image and reference library reflectance spectra. Various spectral libraries constructed from the field reflectance spectra collected

Rama Rao Nidamanuri; Bernd Zbell

2011-01-01

2

Refining spectral library searching.  

PubMed

Spectral library searching has many advantages over sequence database searching, yet it has not been widely adopted. One possible reason for this is that users are unsure exactly how to interpret the similarity scores (e.g., "dot products" are not probability-based scores). Methods to create decoys have been proposed, but, as developers caution, may produce proxies that are not equivalent to reversed sequences. In this issue, Shao et al. (Proteomics 2013, 13, 3273-3283) report advances in spectral library searching where the focus is not on improving the performance of their search engine, SpectraST, but is instead on improving the statistical meaningfulness of its discriminant score and removing the need for decoys. The results in their paper indicate that by "standardizing" the input and library spectra, sensitivity is not lost but is, surprisingly, gained. Their tests also show that false discovery rate (FDR) estimates, derived from their new score, track better with "ground truth" than decoy searching. It is possible that their work strikes a good balance between the theory of library searching and its application. And as such, they hope to have removed a major entrance barrier for some researchers previously unwilling to try library searching. PMID:24123856

Rudnick, Paul A

2013-11-01

3

Public Health Image Library  

NSDL National Science Digital Library

The Public Health Image Library (PHIL) offered by the Centers for Disease Control and Prevention (CDC) is an extensive collection of images and multimedia files related to public health. If you've ever wanted to see the life cycle of a hookworm or pictures of anthrax lesions, you can see them here. The site can be searched by category, keyword, or image id number, and although the Java-based search engine is a bit cumbersome, spending several hours here will be easy. Often graphic, many of the images are of diseased organs and microscopic slides. Educators, researchers, and professionals should find this site interesting.

2002-01-01

4

Image-analysis library  

NASA Technical Reports Server (NTRS)

MATHPAC image-analysis library is collection of general-purpose mathematical and statistical routines and special-purpose data-analysis and pattern-recognition routines for image analysis. MATHPAC library consists of Linear Algebra, Optimization, Statistical-Summary, Densities and Distribution, Regression, and Statistical-Test packages.

1980-01-01

5

Public Health Image Library  

NSDL National Science Digital Library

The goal of the Public Health Image Library (PHIL) is to offer "an organized, universal electronic gateway to the Center for Disease Control's pictures." The site welcomes public health professionals, laboratory scientists, students and the general public to use this material for reference, teaching, presentation, and public health messages. On its homepage, visitors can use the PHIL Quick Search to look for photos, illustrations, or videos. The Featured PHIL Collections contains thematic sections that deal with influenza, natural disasters, environmental health, and bioterrorism. Photographers and those working in health care and education will also want to look over the What's New In PHIL area to get the latest detailed information. Finally, visitors can also use the Contact Us area to have specific queries answered.

6

Natural Sciences Image Library  

NSDL National Science Digital Library

This collection specializes in New Zealand natural science images that are of scientific and/or 'technological' interest and importance. The images are searchable by taxonomy or by theme.This library is growing and the breadth of coverage increasing. To ensure the collection remains dynamic and relevant, images are being added and retired weekly.

Library, Natural S.

2010-02-16

7

Planetary Image Geometry Library  

NASA Technical Reports Server (NTRS)

The Planetary Image Geometry (PIG) library is a multi-mission library used for projecting images (EDRs, or Experiment Data Records) and managing their geometry for in-situ missions. A collection of models describes cameras and their articulation, allowing application programs such as mosaickers, terrain generators, and pointing correction tools to be written in a multi-mission manner, without any knowledge of parameters specific to the supported missions. Camera model objects allow transformation of image coordinates to and from view vectors in XYZ space. Pointing models, specific to each mission, describe how to orient the camera models based on telemetry or other information. Surface models describe the surface in general terms. Coordinate system objects manage the various coordinate systems involved in most missions. File objects manage access to metadata (labels, including telemetry information) in the input EDRs and RDRs (Reduced Data Records). Label models manage metadata information in output files. Site objects keep track of different locations where the spacecraft might be at a given time. Radiometry models allow correction of radiometry for an image. Mission objects contain basic mission parameters. Pointing adjustment ("nav") files allow pointing to be corrected. The object-oriented structure (C++) makes it easy to subclass just the pieces of the library that are truly mission-specific. Typically, this involves just the pointing model and coordinate systems, and parts of the file model. Once the library was developed (initially for Mars Polar Lander, MPL), adding new missions ranged from two days to a few months, resulting in significant cost savings as compared to rewriting all the application programs for each mission. Currently supported missions include Mars Pathfinder (MPF), MPL, Mars Exploration Rover (MER), Phoenix, and Mars Science Lab (MSL). Applications based on this library create the majority of operational image RDRs for those missions. A Java wrapper around the library allows parts of it to be used from Java code (via a native JNI interface). Future conversions of all or part of the library to Java are contemplated.

Deen, Robert C.; Pariser, Oleg

2010-01-01

8

Anatomical Sciences Image Library  

NSDL National Science Digital Library

If you're hoping to learn about everything from the femoral artery to the phalanges, this image library collection can get the job done. The American Association of Anatomists (AAA) has created this collection of links to high-quality resources that cover five topical areas, including the brain, histology, and development. Each area has at least six links, but the centerpiece is the anatomy area, with 15 resources in total. The development area is quite fine as well; links include a multi-dimensional human embryo and the e-Mouse Atlas Project, "a detailed model of the developing mouse."

9

Library Searching: An Industrial User's Viewpoint.  

ERIC Educational Resources Information Center

Discusses library searching of chemical literature from an industrial user's viewpoint, focusing on differences between academic and industrial researcher's searching techniques of the same problem area. Indicates that industry users need more exposure to patents, work with abstracting services and continued improvement in computer searching

Hendrickson, W. A.

1982-01-01

10

Image analysis library software development  

NASA Technical Reports Server (NTRS)

The Image Analysis Library consists of a collection of general purpose mathematical/statistical routines and special purpose data analysis/pattern recognition routines basic to the development of image analysis techniques for support of current and future Earth Resources Programs. Work was done to provide a collection of computer routines and associated documentation which form a part of the Image Analysis Library.

Guseman, L. F., Jr.; Bryant, J.

1977-01-01

11

Image library of biological macromolecules  

Microsoft Academic Search

An Image Library of Biological Macromolecules is described, which contains image and text files related to structures of biological macromolecules. Currently, the Library has ~5000 image files of ~500 structures of biological macromolecules whose coordinates are available in the Protein Data Bank and in the Nucleic Acid Database. The entries include all RNA structures, ~70 DNA structures, 150 proteins and

Jürgen Sühnel

1996-01-01

12

Flexible and Scalable Digital Library Search.  

National Technical Information Service (NTIS)

In this report the development of a specialised search engine for a digital library is described. The proposed system architecture consists of three levels: the conceptual, the logical and the physical level. The conceptual level schema enables by its exp...

M. A. Windhouwer A. R. Schmidt R. von Zwol M. Petkovic H. E. Blok

2001-01-01

13

Lawrence Berkeley National Laboratory Image Library  

DOE Data Explorer

Berkeley Lab’s Image Library is an online, digital image collection. It was developed to meet the need for scientific and historical photographs that have been cleared for licensed use. The library contains multiple galleries and albums organized by topics and by year. It can be searched several different ways and contains hundreds of images. Open one of the albums and browse the images in a comfortable icon size, click to see a larger photo, then select the lightbox option to add that photo to a temporary workspace.

14

Improving the search experience: federated search and the library gateway  

Microsoft Academic Search

Purpose – The aim of this paper is to review the evolving nature of the library web site with a focus on improving the usability of the access points to licensed and unlicensed research databases. Design\\/methodology\\/approach – The paper describes the milestones in the development of a library gateway and the incorporation of federated search into a prominent place in

Jerry V. Caswell; John D. Wynstra

2010-01-01

15

Search of the Library Information Collection.  

ERIC Educational Resources Information Center

Search of the Library Information Collection (SLIC) is a relatively inexpensive program for searching the ERIC files. The concepts of the inverted file used by the SLIC programs has reduced the overhead required in previous systems thereby decreasing operating costs and loss of valuable research time. The amount of main storage required is small.…

Bradley Univ., Peoria, IL. Computer Center.

16

Pitts Theology Library: Digital Image Archive  

NSDL National Science Digital Library

Based at Emory University, the Pitts Theology Library has a number of digital archives that are worthy of mention. This particular one brings together over 28,000 images of biblical illustrations. The archive also includes engravings of church buildings and religious leaders. Visitors can search the archive by call number or Bible verse, which is a rather helpful way to look for items of interest. Visitors are also encouraged to use these images for use in church publications, research papers, and other educational settings. Also, visitors can use the "Revised Common Lectionary" area to identify commonly used items, like Gospel lessons and Hebrew Bible lessons. The site is rounded out by a "FAQ" area and a link to the Library's main Special Collection site.

17

Evaluation of Federated Searching Options for the School Library  

ERIC Educational Resources Information Center

Three hosted federated search tools, Follett One Search, Gale PowerSearch Plus, and WebFeat Express, were configured and implemented in a school library. Databases from five vendors and the OPAC were systematically searched. Federated search results were compared with each other and to the results of the same searches in the database's native…

Abercrombie, Sarah E.

2008-01-01

18

Image Searching across the Web.  

ERIC Educational Resources Information Center

Discusses how to find digital images on the Web. Considers images and copyright; provides an overview of the search capabilities of six search engines, including AltaVista, Google, AllTheWeb.com, Ditto.com, Picsearch, and Lycos; and describes specialized image search engines. (LRW)

Pack, Thomas

2002-01-01

19

A Statistical Study of Online Searches in an Academic Library.  

ERIC Educational Resources Information Center

Searches conducted at the library of King Fahd University of Petroleum & Minerals Library (Saudi Arabia) were analyzed as to online versus CD-ROM, costs, academic department, user status, subject, databases accessed, and search strategy. A database management system was used to compile results, and statistics will aid in material selection and…

Siddiqui, Moid A.

1996-01-01

20

Image Semantic Search Engine  

Microsoft Academic Search

As the search technology rapidly developed, nowadays, main search engines are already able to meet users basic search desire. However, current search algorithms or methodologies mostly depend on keywords matching process, which could be effective for text search while not efficient for keywords-lacking or non-text search scenarios. This paper summarizes the solution adopted by current search engine vendors, and introduces

Lv Chaoqing; Takashi Kobayashi; Kiyoshi Agusa; Kun Wu; Qing Zhu

2009-01-01

21

Research application: teaching staff nurses to use library search strategies.  

PubMed

Journal reading is a major mechanism for disseminating research but much goes unread by practicing nurses. A survey revealed the 10 most frequently read journals are primarily of a clinical/technical nature. To encourage reading of research, we organized a series of library sessions to familiarize nurses with the library and modern search strategies. Over half of the 77 nurse participants indicated they had not visited the library in six months and were less than confident in their library skills. Hands-on experiences, including computerized literature search, gave nurses an opportunity to learn techniques for locating research articles. PMID:1730822

Stephens, L C; Selig, C L; Jones, L C; Gaston-Johansson, F

1992-01-01

22

Federated Search and the Library Web Site: A Study of Association of Research Libraries Member Web Sites  

Microsoft Academic Search

The purpose of this study was to investigate how federated search engines are incorporated into the Web sites of libraries in the Association of Research Libraries. In 2009, information was gathered for each library in the Association of Research Libraries with a federated search engine. This included the name of the federated search service and the presence, placement, and context

Sarah C. Williams

2010-01-01

23

The British Library Initiatives for Access Seminar: Digital Imaging.  

ERIC Educational Resources Information Center

Provides an overview of the British Library's Initiatives for Access program which uses digital imaging. Highlights include digitization of microfilm, the electronic "Beowulf", electronic photographic viewing system, computer software that uses neural networks and fuzzy matching to provide links to search terms, and international projects. (LRW)

Alexander, Michael

1996-01-01

24

Visualizing Document Classification: A Search Aid for the Digital Library.  

ERIC Educational Resources Information Center

Discusses access to digital libraries on the World Wide Web via Web browsers and describes the design of a language-independent document classification system to help users of the Florida Center for Library Automation analyze search query results. Highlights include similarity scores, clustering, graphical representation of document similarity,…

Lieu, Yew-Huey; Dantzig, Paul; Sachs, Martin; Corey, James T.; Hinnebusch, Mark T.; Damashek, Marc; Cohen, Jonathan

2000-01-01

25

ESS: the Library of Congress experimental search system  

Microsoft Academic Search

Presents the experiences of the Library of Congress‘s experimental Web based public catalogue which sets out to combine the varied resources of the library through one gateway. Considers how this system attempts to introduce new methods of retrieval rather than the traditional Boolean searches. Covers the origin of the project, the features of the system, problems encountered in implementation and

Dean Wilder; Rich Greenfield

1997-01-01

26

dbWiz: open source federated searching for academic libraries  

Microsoft Academic Search

Purpose – The purpose of this paper is to describe the experiences of developing an open source federated searching tool. It is hoped that it will generate interest not only in dbWiz, but in the many other open source projects either completed or in development at the Simon Fraser University Library and at other libraries around the world. Design\\/methodology\\/approach –

Calvin Mah; Kevin Stranack

2005-01-01

27

Search Procedures for Senior Library Administrators. SPEC Kit 143.  

ERIC Educational Resources Information Center

Association of Research Libraries (ARL) member institutions were surveyed by the Systems and Procedures Exchange Center (SPEC) in the fall of 1987 to obtain information on their recruitment and hiring practices for top level library administrative positions, and to determine in what ways search procedures may have changed over the past 10 years in…

Ulmschneider, John

28

SEARCHING IN UV\\/VIS SPECTRAL LIBRARY  

Microsoft Academic Search

The program system UVLib for searching in UV\\/Vis spectral databases is described. It is a user friendly menu driven program working in Microsoft Windows environment. Four different search algorithms are implemented in the program: the sum of the squared absorbance differences, sum of the absolute absorbance differences, scalar product of two spectral vectors, and correlation coefficient between two spectral arrays.

D. Hristozov; P. Penchev; G. Andreev

29

Document Images Analysis Solutions for Digital libraries  

Microsoft Academic Search

Today the development of digital libraries is reaching technological limits due to the difficulty of automatically processing a growing mass of digitized images of documents from different origins. The main problem is the high cost of the digitization and retro-conversion processes which include image capture and indexation, metadata extraction, image storage, conversion in reusable electronic form, publication on the Internet

Frank Le Bourgeois; E. Trinh; Bénédicte Allier; Véronique Eglin; Hubert Emptoz

2004-01-01

30

Denver Public Library Western History and Genealogy: Digital Image Collection  

NSDL National Science Digital Library

The Photodigitization Project, an initiative of the Western History/ Genealogy Department of the Denver Public Library, catalogs, archives, and provides public access to an extensive collection of digitized photographs. Recently, the DPL made this database of images available on the Internet. Currently, the database contains more than 50,000 high-resolution images documenting the history of Colorado and the American West. The DPL intends to have over 95,000 images in the database by the year 2000. Users may browse the collection in the Gallery section or search the database via a sophisticated interface. The Search page allows Boolean and wildcard searches and provides options to save, manage, and email search results.

31

Columbia Object Image Library (COIL20)  

Microsoft Academic Search

Columbia Object Image Library (COIL-20) is a database of gray-scale images of 20objects. The objects were placed on a motorized turntable against a black background.The turntable was rotated through 360 degrees to vary object pose with respect to a fixedcamera. Images of the objects were taken at pose intervals of 5 degrees. This correspondsto 72 images per object. The database

Sameer A. Nene; Shree K. Nayar; Hiroshi Murase

1996-01-01

32

Moving Image Preservation in Libraries.  

ERIC Educational Resources Information Center

Examines the current practices of film and video preservation in libraries and examines barriers that have hindered the development of full-fledged preservation programs for them. Topics include advances in education and training; preservation paradigms; and mechanics of film production that affect preservation. (Author/LRW)

De Stefano, Paula

2003-01-01

33

Music-Notation Searching and Digital Libraries.  

ERIC Educational Resources Information Center

Almost all work on music information retrieval to date has concentrated on music in the audio and event (normally MIDI) domains. However, music in the form of notation, especially Conventional Music Notation (CMN), is of much interest to musically trained persons, both amateurs and professionals, and searching CMN has great value for digital music…

Byrd, Donald

34

One box to search them all : Implementing federated search at an academic library  

Microsoft Academic Search

Purpose – The purpose of this paper is to present how, in May 2008, the Ad Hoc Committee on Federated Search was formed to prepare a preliminary report on federated searching for a special meeting of Librarians Academic Council at Memorial University Libraries. The primary purpose is to discuss current implementation of federated searching at this institution, explore what other

Ian Gibson; Lisa Goddard; Shannon Gordon

2009-01-01

35

ASCB Image and Video Library  

NSDL National Science Digital Library

This collection of high-quality, peer-reviewed still images and videos from the American Society for Cell Biology (ASCB) provides comprehensive coverage of the field of cell biology. The items are organized by topic: cell contact and extracellular matrix; cell division, growth, and death; cell regulation; cytoskeleton and cell dynamics; and others. There is also a collection of images and videos selected especially for teaching purposes. The images are searchable by keyword and collection. Each image or video is accompanied by metadata, including title, author, a description, image production materials and methods, references, and others. Cell biologists are also invited to submit images for publication on the site. The images and videos are available for downloading; videos may also be streamed from the site.

36

Accidental Federated Searching: Implementing Federated Searching in the Smaller Academic Library  

Microsoft Academic Search

Borrowing its title from and continuing in the vein of Rachel Gordon Singer's book, The Accidental Systems Librarian, this article explores issues raised during implementation of federated search in the smaller academic library. Smaller academic libraries have smaller budgets and are less likely to have the levels of information technology support required to undertake large scale electronic projects; however, these

Nina McHale

2007-01-01

37

Understanding the improved sensitivity of spectral library searching over sequence database searching in proteomics data analysis.  

PubMed

Spectral library searching has been recently proposed as an alternative to sequence database searching for peptide identification from MS/MS. We performed a systematic comparison between spectral library searching and sequence database searching using a wide variety of data to better demonstrate, and understand, the superior sensitivity of the former observed in preliminary studies. By decoupling the effect of search space, we demonstrated that the success of spectral library searching is primarily attributable to the use of real library spectra for matching, without which the sensitivity advantage largely disappears. We further determined the extent to which the use of real peak intensities and non-canonical fragments, both under-utilized information in sequence database searching, contributes to the sensitivity advantage. Lastly, we showed that spectral library searching is disproportionately more successful in identifying low-quality spectra, and complex spectra of higher- charged precursors, both important frontiers in peptide sequencing. Our results answered important outstanding questions about this promising yet unproven method using well-controlled computational experiments and sound statistical approaches. PMID:21298786

Zhang, Xin; Li, Yunzi; Shao, Wenguang; Lam, Henry

2011-03-01

38

Building and searching tandem mass spectral libraries for peptide identification.  

PubMed

Spectral library searching is an emerging approach in peptide identifications from tandem mass spectra, a critical step in proteomic data analysis. Conceptually, the premise of this approach is that the tandem MS fragmentation pattern of a peptide under some fixed conditions is a reproducible fingerprint of that peptide, such that unknown spectra acquired under the same conditions can be identified by spectral matching. In actual practice, a spectral library is first meticulously compiled from a large collection of previously observed and identified tandem MS spectra, usually obtained from shotgun proteomics experiments of complex mixtures. Then, a query spectrum is then identified by spectral matching using recently developed spectral search engines. This review discusses the basic principles of the two pillars of this approach: spectral library construction, and spectral library searching. An overview of the software tools available for these two tasks, as well as a high-level description of the underlying algorithms, will be given. Finally, several new methods that utilize spectral libraries for peptide identification in ways other than straightforward spectral matching will also be described. PMID:21900153

Lam, Henry

2011-12-01

39

OCLC Search Key Usage Patterns in a Large Research Library.  

ERIC Educational Resources Information Center

Reports the results of a study performed to determine preferred and effective usage of search keys utilized by OCLC users. The study used the research library facilities of Ohio State University to examine information retrieval behavior for acquisitions and cataloging information. (RAA)

Rastogi, Kunj B.; Morita, Ichiko T.

1981-01-01

40

A Plugin Architecture Enabling Federated Search for Digital Libraries  

Microsoft Academic Search

Today, users expect a variety of digital libraries to be searchable from a single Web page. The German Vascoda project provides this service for dozens of information sources. Its ultimate goal is to provide search quality close to the ranking of a central database containing documents from all participating li- braries. Currently, however, the Vascoda portal is based on a

Sergey Chernov; Christian Kohlschütter; Wolfgang Nejdl

2006-01-01

41

World Wide Web Image Search Engines  

Microsoft Academic Search

We propose the development of a world wide web image search engine that crawls the web collecting information about the images it finds, computes the appropriate image decompositions and indices, and stores this extracted infor- mation for searches based on image content. Indexing and searching images need not require solving the image under- standing problem. Instead, the general approach should

Stan Sclaroff

1995-01-01

42

Image Collections: Providence Public Library  

NSDL National Science Digital Library

The Providence Public Library has worked tirelessly to digitize a range of works over the past few years. On this section of its site, visitors can look through collections that include Aerial Views, America's Cup in Rhode Island, Civil War Ballads, and over 16 additional collections. The Providence Buildings gallery is a real gem, as it includes over three hundred historical photographs of well-known structures, including the Providence Biltmore. For lovers of maritime lore, the Scrimshaw Collection showcases hundreds of photographs from the Nicholson Collection, a trove of whaling history. Users also shouldn't miss Rhode Island Mill Villages, a collection offering up dramatic views of towns like Hamlet Mills and Georgiaville Mill.

43

US Fish & Wildlife Service National Image Library  

NSDL National Science Digital Library

This digital image collection from the US Fish & Wildlife Service contains an enormous number of photographs that can be viewed online or downloaded. The collection contains images of plants, wildlife, landscapes, and habitats. The search function allows for either general or specific searches, but the site is lacking a browse function that would allow users an overview of the scope of categories contained in the collection.

44

Spectrum-based method to generate good decoy libraries for spectral library searching in peptide identifications.  

PubMed

As spectral library searching has received increasing attention for peptide identification, constructing good decoy spectra from the target spectra is the key to correctly estimating the false discovery rate in searching against the concatenated target-decoy spectral library. Several methods have been proposed to construct decoy spectral libraries. Most of them construct decoy peptide sequences and then generate theoretical spectra accordingly. In this paper, we propose a method, called precursor-swap, which directly constructs decoy spectral libraries directly at the "spectrum level" without generating decoy peptide sequences by swapping the precursors of two spectra selected according to a very simple rule. Our spectrum-based method does not require additional efforts to deal with ion types (e.g., a, b or c ions), fragment mechanism (e.g., CID, or ETD), or unannotated peaks, but preserves many spectral properties. The precursor-swap method is evaluated on different spectral libraries and the results of obtained decoy ratios show that it is comparable to other methods. Notably, it is efficient in time and memory usage for constructing decoy libraries. A software tool called Precursor-Swap-Decoy-Generation (PSDG) is publicly available for download at http://ms.iis.sinica.edu.tw/PSDG/. PMID:23560440

Cheng, Chia-Ying; Tsai, Chia-Feng; Chen, Yu-Ju; Sung, Ting-Yi; Hsu, Wen-Lian

2013-05-01

45

Optimizing signal and image processing applications using Intel libraries  

NASA Astrophysics Data System (ADS)

This paper presents optimized signal and image processing libraries from Intel Corporation. Intel Performance Primitives (IPP) is a low-level signal and image processing library developed by Intel Corporation to optimize code on Intel processors. Open Computer Vision library (OpenCV) is a high-level library dedicated to computer vision tasks. This article describes the use of both libraries to build flexible and efficient signal and image processing applications.

Landré, Jérôme; Truchetet, Frédéric

2007-05-01

46

Iowa State University Entomology Image Library  

NSDL National Science Digital Library

Iowa State University's Department of Entomology hosts a gaggle of insect-related sites, among them the Entomology Image Library. Here, interested viewers may browse through many close-up, color images (and some MPEG animations) of beetles; lice; plant diseases and damage; butterflies, moths, and caterpillars; cicadas and leafhoppers; plants; flies and mosquitoes; ticks; grasshoppers and crickets; and true bugs. Each section provides several crisp images of insects (listed by common and scientific name), as well as images of insects feeding on crops. While the content is appropriate for students at all education levels (K-12 and up), this site may also be helpful to non-entomologist wildlife/ botanical researchers seeking common insect species identification tips, images of insects feeding, or images of severe herbivory.

47

GeoDIL: A Geoscience Digital Image Library  

NSDL National Science Digital Library

The Geoscience Digital Image Library (GeoDIL) is a searchable collection of Earth science images intended as a general teaching resource, to specifically facilitate virtual field trips, to enhance the public's scientific and technological literacy, and to assist Earth science programs in smaller schools and colleges that do not have documented images as part of their regular teaching materials. Users can retrieve images through standard or advanced searches, or through browsing by category. Catagories include Earth resources, minerals, rocks and rock-forming processes, surficial geology, structural geology and tectonics, geologic time (chronostratigraphy), paleontology (fossils, etc), and planetary geology. Images are downloadable and are accompanied by descriptive annotations, general metadata, locational and geological information, and the browsing categories with which each are associated. In order to view imagery, this site requires a user to register.

48

Semantically Enriching the Search System of a Music Digital Library  

NASA Astrophysics Data System (ADS)

Traditional search systems are usually based on keywords, a very simple and convenient mechanism to express a need for information. This is the most popular way of searching the Web, although it is not always an easy task to accurately summarize a natural language query in a few keywords. Working with keywords means losing the context, which is the only thing that can help us deal with ambiguity. This is the biggest problem of keyword-based systems. Semantic Web technologies seem a perfect solution to this problem, since they make it possible to represent the semantics of a given domain. In this chapter, we present three projects, Harmos, Semusici and Cantiga, whose aim is to provide access to a music digital library. We will describe two search systems, a traditional one and a semantic one, developed in the context of these projects and compare them in terms of usability and effectiveness.

de Juan, Paloma; Iglesias, Carlos

49

Continuing the Quest for the Quick Search Holy Grail: Oregon State University Libraries' Federated Search Implementation  

Microsoft Academic Search

This article describes the selection, implementation, con- figuration, and assessment of a proprietary federated search product. The decisions made and processes used to facilitate the implementa- tion are outlined. Users' perception of the product based on a usability study and survey responses are presented. Also described are unique and innovative implementations of the software within Oregon State Univer- sity libraries

Michael Boock; Jane Nichols; Laurel Kristick

50

The ELISE II Project: A Digital Image Library for Europe.  

ERIC Educational Resources Information Center

This paper describes the progress made under the ELISE II electronic image library project from a technical standpoint. The ELISE II project is a European-wide initiative that aims to provide a comprehensive electronic image library service for Europe. It is funded under the European Commission, DG XIII-E, Telematics for Libraries Initiative. The…

Strunz, Bob; Waters, Mairead

51

Building and searching tandem mass (MS\\/MS) spectral libraries for peptide identification in proteomics  

Microsoft Academic Search

Spectral library searching is an emerging approach in peptide identifications from tandem mass spectra, a critical step in proteomic data analysis. In spectral library searching, a spectral library is first meticulously compiled from a large collection of previously observed peptide MS\\/MS spectra that are conclusively assigned to their corresponding amino acid sequence. An unknown spectrum is then identified by comparing

Henry Lam; Ruedi Aebersold

2011-01-01

52

Liverpool's Discovery: A University Library Applies a New Search Tool to Improve the User Experience  

ERIC Educational Resources Information Center

This article features the University of Liverpool's arts and humanities library, which applies a new search tool to improve the user experience. In nearly every way imaginable, the Sydney Jones Library and the Harold Cohen Library--the university's two libraries that serve science, engineering, and medical students--support the lives of their…

Kenney, Brian

2011-01-01

53

Discovering How Students Search a Library Web Site: A Usability Case Study.  

ERIC Educational Resources Information Center

Discusses results of a usability study at the University of Illinois Chicago that investigated whether Internet search engines have influenced the way students search library Web sites. Results show students use the Web site's internal search engine rather than navigating through the pages; have difficulty interpreting library terminology; and…

Augustine, Susan; Greene, Courtney

2002-01-01

54

Visual image repositories at the Washington State University Libraries  

Microsoft Academic Search

The World Civilizations Image Repository (WCIR) and Photos Online are two collaborative image database projects under way at the Washington State University (WSU) Libraries. These projects demonstrate how the WSU Libraries have employed OCLC\\/DiMeMa's (Digital Media Management) CONTENTdm in partnership with other University departments to develop visual collections free from copyright restrictions, as well as to manage “born digital” images

Trevor J. Bond

2004-01-01

55

Images1: Online Images from The National Library of Australia's Pictorial Collection  

NSDL National Science Digital Library

At this site users can search and browse through 20,000 digital images selected from the roughly half million pictures in the Pictorial Collection of the National Library of Australia. Images1 includes portraits, photographs, paintings and prints related to the history of Australia. Three search methods are provided: Quick Search, a keyword search; Simple Search, to indicate where the search word should occur, such as Title, Subject, or Format; and Advanced Search for combining terms from several indexes. Those unfamiliar with Australian history can check the About page for information on the contents of Images1. Another very good way to approach the collection is to select the Browse Series Titles option, which produces a list of titles of the major groupings within the collection, and how many items each contains. For example, the Rex Nan Kivell collection is 3,000 pictures collected by Nan Kivell, a London art dealer, that document the early history and exploration of New Zealand and Australia.

56

Telecommunications alternatives in accessing image intensive digital libraries  

Microsoft Academic Search

Digital libraries are becoming vital in basic research and general surfing of the Internet and the Web. Unlike text-based digital libraries, image intensive digital libraries have inherent problems of slow downloading and uploading. These bottlenecks are caused by low bandwidth at the “last mile”, the distance between the telecommunications carriers’ distribution center – or central office and the user premises.

Harry M. Kibirige

2000-01-01

57

An Analysis of the Impact of Federated Search Products on Library Instruction Using the ACRL Standards  

Microsoft Academic Search

Federated search products are becoming more and more prevalent in academic libraries. What are the implications of this phenomenon for instruction librarians? An analysis of federated search products using the \\

Christopher Cox

2006-01-01

58

Searching a mid-infrared spectral library of solids and liquids with spectra of mixtures  

Microsoft Academic Search

A novel method for searching spectral libraries with spectra of mixtures has been extensively tested and the results of these tests are presented herein. The algorithm, referred to as a Mix–Match search, uses principal component regression (PCR) to model a library of spectra and to predict pseudo concentrations of components in the spectrum of a mixture. The PCR method is

Chi-Shi Chen; Yue Li; Chris W Brown

1997-01-01

59

Wanted, Dead or Alive: Federated Searching for a Statewide Virtual Library  

Microsoft Academic Search

Federated search solutions have strengths and weaknesses that are appraised by librarians in light of Google. Consortial implementations have unique needs that require solutions to be scalable and flexible. GALILEO, Georgia's Virtual Library, recently selected two federated search solutions in order to meet the needs of its consortium, which includes 400 academic, K-12, and public libraries. GALILEO works with the

Lauren Fancher

2007-01-01

60

What Do the Public Search for on the Catalogue of the State Library of Victoria?  

ERIC Educational Resources Information Center

This study examines what the public search for in the catalogue of the State Library of Victoria (SLV). As well as indicating the type of content being accessed, this gives an indication of what catalogue users expect of the State Library collection. A content analysis was undertaken of a random, stratified sample of 4,000 search queries typed in…

Waller, Vivienne

2009-01-01

61

Federated Search of Text-Based Digital Libraries in Hierarchical Peer-to-Peer Networks  

Microsoft Academic Search

ABSTRACT Peer-to-peer architectures are a potentially ,powerful ,model ,for developing large-scale networks of text-based digital libraries, but peer-to-peer networks ,have so far ,provided ,very limited support for text-based federated search ofdigital libraries using relevancebased ranking. This paper addresses the problems ,of resource representation, resource ranking and selection, and result merging for federated search of text-based digital libraries in hierarchical peer-to-peer

Jie Lu; Jamie Callan

2004-01-01

62

Federated Search of Text-Based Digital Libraries in Hierarchical Peer-to-Peer Networks  

Microsoft Academic Search

Peer-to-peer architectures are a potentially powerful model for de- veloping large-scale networks of text-based digital libraries, but peer-to-peer networks have so far provided very limited support for text-based federated search of digital libraries using relevance-based ranking. This paper addresses the problems of resource representation, resource ranking and selection, and re- sult merging for federated search of text-based digital libraries in

Jie Lu; Jamie Callan

2005-01-01

63

Daffodil: An Integrated Desktop for Supporting High-Level Search Activities in Federated Digital Libraries  

Microsoft Academic Search

Daffodil is a digital library system targeting at strategic support during the information search process. For the user, mainly high-level search functions, so-called stratagems, implement\\u000a this strategic support, which provide functionality beyond today’s digital libraries. Through the tight integration of stratagems\\u000a and with the federation of heterogeneous digital libraries, Daffodil reaches a high synergy effect for information and services.\\u000a These

Norbert Fuhr; Claus-peter Klas; André Schaefer; Peter Mutschke

2002-01-01

64

Online image classifier learning for Google image search improvement  

Microsoft Academic Search

This paper proposes a content based method to improve image search results from Google search engine. The images returned by Google are used to learn a statistical binary classifier for measuring their relevance to the query. The learning process includes three stages. In the first stage, positive and negative examples are selected from the images by using k- medoids clustering

Yuchai Wan; Xiabi Liu; Jie Bing; Yunpeng Chen

2011-01-01

65

The Impact of On-line Searching on Document Supply Services at Individual Libraries  

NASA Astrophysics Data System (ADS)

As use of on-line searching services has progressed in libraries, requests on primary materials have increased much more than before. For the purpose of clarifying this trend and countermeasures against it a survey by questionnaire was conducted in 1985. The respondants from totally 112 libraries are as follows ; 60 industrial libraries, 41 academic libraries and 11 libraries of research institutes and laboratories. It was shown that industrial libraries have received more requests on primary materials mostly resulting from on-line searching while the requests have not increased remarkably in academic libraries. Regardless the type of libraries, almost all libraries can not fully meet the requests with their own collection so that industrial libraries have to rely on external information services and academic libraries utilize interlibrary loan system. Requests are sent via on-line from industrial libraries, and by mail from academic libraries. In fact, any-libraries are not likely to review their material-collecting policy. Therefore it is urgent to establish the system which enables use of external information services or interlibrary loan system more than ever.

Hosono, Kimio; Tanaka, Isao; Fukazawa, Yoshiko

66

TinEye Reverse Image Search  

NSDL National Science Digital Library

TinEye is essentially a reverse image search engine that allows users to submit images in order to find out where it came from, how it is being used, if modified versions of the image exist, or to find higher resolution versions. The site includes a FAQ area and a demonstration video. Visitors will need to sign and create a password, and afterwards they will be able to use the search engine. This version is compatible with computers running all operating systems.

2009-01-06

67

Similarity Searching in Medical Image Databases  

Microsoft Academic Search

We propose a method to handle approximate searching by image content in medical image databases. Image content is represented by attributed relational graphs holding features of objects and relationships between objects. The method relies on the assumption that a fixed number of \\

Euripides G. M. Petrakis; Christos Faloutsos

1997-01-01

68

Refining similarity scoring to enable decoy-free validation in spectral library searching.  

PubMed

Spectral library searching is a maturing approach for peptide identification from MS/MS, offering an alternative to traditional sequence database searching. Spectral library searching relies on direct spectrum-to-spectrum matching between the query data and the spectral library, which affords better discrimination of true and false matches, leading to improved sensitivity. However, due to the inherent diversity of the peak location and intensity profiles of real spectra, the resulting similarity score distributions often take on unpredictable shapes. This makes it difficult to model the scores of the false matches accurately, necessitating the use of decoy searching to sample the score distribution of the false matches. Here, we refined the similarity scoring in spectral library searching to enable the validation of spectral search results without the use of decoys. We rank-transformed the peak intensities to standardize all spectra, making it possible to fit a parametric distribution to the scores of the nontop-scoring spectral matches. The statistical significance of the top-scoring match can then be estimated in a rigorous manner according to Extreme Value Theory. The overall result is a more robust and interpretable measure of the quality of the spectral match, which can be obtained without decoys. We tested this refined similarity scoring function on real datasets and demonstrated its effectiveness. This approach reduces search time, increases sensitivity, and extends spectral library searching to situations where decoy spectra cannot be readily generated, such as in searching unidentified and nonpeptide spectral libraries. PMID:24115759

Shao, Wenguang; Zhu, Kan; Lam, Henry

2013-11-01

69

User Evaluation of a Corporate Library Online Search Service.  

ERIC Educational Resources Information Center

Summarizes the findings of a survey taken to measure user satisfaction with General Electric's online search services, including search retrieval relevance and search benefits. Nine references are cited and a sample questionnaire is provided. (FM)

Warden, Carolyn L.

1981-01-01

70

Online Searching in the Small College Library--Ten Years Later.  

ERIC Educational Resources Information Center

Reviews experiences with online searching at the Nazareth College library. Topics discussed include user expectations; actual and perceived search quality; the impact of laser printers; growth in online searching; increases in other reference services; the use of CD-ROM technology; and costs and pricing policies. (LRW)

Smith, Scott; Smith, Jane B.

1991-01-01

71

Virage Image Search Engine: An Open Framework for Image Management  

Microsoft Academic Search

Until recently, the management of large image databases has relied exclusively on manually entered alphanumeric annotations. Systems are beginning to emerge in both the research and commercial sectors based on 'content-based' image retrieval, a technique which explicitly manages image assets by directly representing their visual attributes. The Virage image search engine provides an open framework for building such systems. The

Jeffrey R. Bach; Charles Fuller; Amarnath Gupta; Arun Hampapur; Bradley Horowitz; Rich Humphrey; Ramesh Jain; Chiao-Fe Shu

1996-01-01

72

Imaging Technology in Libraries: Photo CD Offers New Possibilities.  

ERIC Educational Resources Information Center

Describes Kodak's Photo CD technology, a format for the storage and retrieval of photographic images in electronic form. Highlights include current and future Photo CD formats; computer imaging technology; ownership issues; hardware for using Photo CD; software; library and information center applications, including image collections and…

Beiser, Karl

1993-01-01

73

Image Search Visualization in a Planetary VO  

NASA Astrophysics Data System (ADS)

A multi-mission image search tool has been created through a collaboration between Google and NASA Ames Research Center, using Google Earth as a virtual observatory (VO) for accessing search results. Follow-on work will expand the utilization of the VO and refine the features based on user research.

Trimble, J.; Rose, M.; Schauer, C.; Russell, D.

2011-10-01

74

Personalizing Image Search Results on Flickr  

Microsoft Academic Search

The social media site Flickr allows users to upload their pho- tos, annotate them with tags, submit them to groups, and also to form social networks by adding other users as contacts. Flickr offers multiple ways of browsing or searching it. One option is tag search, which returns all images tagged with a specific keyword. If the keyword is ambiguous,

Kristina Lerman; Anon Plangprasopchok; Chio Wong

2007-01-01

75

University of Washington Libraries: Moving Image Collection  

NSDL National Science Digital Library

Once again, the University of Washington Digital Collections group has gone above and beyond the call of digital collection duty and service with this small, yet very satisfying, collection. This particular collection brings together 23 compelling short films that include home movies from the Seattle World's Fair in 1962, aerial views of the University campus in the post-World War II period, and footage of a group of Japanese Americans picnicking on Mt. Rainier in 1935. Visitors can browse through the entire collection by name, look around by subject heading, or perform a more sophisticated and nuanced search across the entire collection. That's not all, as the site also includes a handy film preservation manual titled "Low-Cost and No-Cost Suggestions To Care For Your Film". On a related note, visitors shouldn't leave the site without viewing a film of a motorcycle race from 1915 and the delightful images of farmers packing the world's largest box of apples in Yakima.

76

On-line Reference Searching in the Community College Library/LRC.  

ERIC Educational Resources Information Center

Compares online literature retrieval with traditional reference services. Discusses the reasons for and against adding online reference services to two-year college libraries and the unique applications online search services may have in the community college environment. (CBC)

Buus, David B.

1982-01-01

77

Facilitating Information Seeking through Cognitive Modeling of the Search Process. A Library Studies Research Project.  

ERIC Educational Resources Information Center

Prior research on the information-seeking process, conducted by Kuhlthau in the school library setting, led to the identification of a six-stage model of the search process, describing cognitive and affective symptoms commonly experienced by library users. The present study was designed to determine whether that model is generalizable to other…

Kuhlthau, Carol C.; And Others

78

Pepitome: evaluating improved spectral library search for identification complementarity and quality assessment  

PubMed Central

Spectral libraries have emerged as a viable alternative to protein sequence databases for peptide identification. These libraries contain previously detected peptide sequences and their corresponding tandem mass spectra (MS/MS). Search engines can then identify peptides by comparing experimental MS/MS scans to those in the library. Many of these algorithms employ the dot product score for measuring the quality of a spectrum-spectrum match (SSM). This scoring system does not offer a clear statistical interpretation and ignores fragment ion m/z discrepancies in the scoring. We developed a new spectral library search engine, Pepitome, which employs statistical systems for scoring SSMs. Pepitome outperformed the leading library search tool, SpectraST, when analyzing data sets acquired on three different mass spectrometry platforms. We characterized the reliability of spectral library searches by confirming shotgun proteomics identifications through RNA-Seq data. Applying spectral library and database searches on the same sample revealed their complementary nature. Pepitome identifications enabled the automation of quality analysis and quality control (QA/QC) for shotgun proteomics data acquisition pipelines.

Dasari, Surendra; Chambers, Matthew C.; Martinez, Misti A.; Carpenter, Kristin L.; Ham, Amy-Joan L.; Vega-Montoto, Lorenzo J.; Tabb, David L.

2012-01-01

79

The MINERVA Project: Towards Collaborative Search in Digital Libraries Using Peer-to-Peer Technology  

Microsoft Academic Search

\\u000a We consider the problem of collaborative search across a large number of digital libraries and query routing strategies in\\u000a a peer-to-peer (P2P) environment. Both digital libraries and users are equally viewed as peers and, thus, as part of the P2P\\u000a network. Our system provides a versatile platform for a scalable search engine combining local index structures of autonomous\\u000a peers with

Matthias Bender; Sebastian Michel; Christian Zimmer; Gerhard Weikum

80

IMB Jena: Image Library of Biological Macromolecules  

NSDL National Science Digital Library

The Institute for Molecular Biotechnology (Jena, Germany) provides this repository of molecular structures, featuring selected VRML (as well as two dimensional) images of "building blocks," and "macromolecular structures." Included among the images are RNA structures from the protein database at the Brookhaven National Laboratory, as well as over 250 DNA and protein structures. Sequence and descriptive information about the images is available. Non-VRML images are searchable.

Suhnel, Jurgen.

81

Comparative evaluation of Web image search engines for multimedia applications  

Microsoft Academic Search

While text-oriented document searching are relatively mature on the Internet, image searching, which requires much more than text matching, significantly lags behind. The use of image search engines significantly enlarges the scope of images to users accessibility. This paper provides an understanding of current technologies in image searching on the Internet, and points to future areas of improvement for multimedia

Keon Stevenson; Clement Leung

2005-01-01

82

Library Development Structures in CIC Institutions: The Search for Constituents.  

ERIC Educational Resources Information Center

This study determined how the 12 academic libraries in the Council for Interinstitutional Cooperation (CIC) approached the challenge of identifying a constituency for fund-raising development activities. Topics discussed include results of a literature review; university organization for development activities; staffing; examples of achievements;…

Gearhart, G. David; St. Clair, Gloriana

1994-01-01

83

An Analysis of the Impact of Federated Search Products on Library Instruction Using the ACRL Standards  

ERIC Educational Resources Information Center

Federated search products are becoming more and more prevalent in academic libraries. What are the implications of this phenomenon for instruction librarians? An analysis of federated search products using the "Information Literacy Competency Standards for Higher Education" and a thorough review of the literature offer insight concerning whether…

Cox, Christopher

2006-01-01

84

Subject-Searching Experiences and Needs of Online Catalog Users: Implications for Library Classification.  

ERIC Educational Resources Information Center

This paper describes an experiment in the use of Dewey Decimal Classification in online catalogs to introduce classed approach to subject searching of library collections, enhance subject terminology indexed in online catalog, and provide possibilities for search strategies not possible through alphabetical approach of subject headings and/or…

Markey, Karen

1985-01-01

85

Developing a Model of the Library Search Process: Cognitive and Affective Aspects  

Microsoft Academic Search

This study investigated the library search process of college-bound high school seniors using qualitative methods. A six-stage model of the students' search process was developed from the thoughts, actions, and feelings commonly experienced in the process. Using the theoretical base of Kelly's phases of construction, Taylor's levels of information need, and Belkin's anomalous state of knowledge, a grounded theory of

Carol Collier Kuhlthau

1988-01-01

86

Factors Affecting the Adoption of On-Line Search Services by the Public Library.  

ERIC Educational Resources Information Center

Costs and cost-related factors connected with providing on-line search services through the public library are examined. The examination was based on preliminary results from an on-going evaluation of an experimental program (DIALIB). In the DIALIB experiment Lockheed's DIALOG search service was available to the public through four public…

Ahlgren, Alice E.

87

Improving e-book access via a library-developed full-text search tool*  

PubMed Central

Purpose: This paper reports on the development of a tool for searching the contents of licensed full-text electronic book (e-book) collections. Setting: The Health Sciences Library System (HSLS) provides services to the University of Pittsburgh's medical programs and large academic health system. Brief Description: The HSLS has developed an innovative tool for federated searching of its e-book collections. Built using the XML-based Vivísimo development environment, the tool enables a user to perform a full-text search of over 2,500 titles from the library's seven most highly used e-book collections. From a single “Google-style” query, results are returned as an integrated set of links pointing directly to relevant sections of the full text. Results are also grouped into categories that enable more precise retrieval without reformulation of the search. Results/Evaluation: A heuristic evaluation demonstrated the usability of the tool and a web server log analysis indicated an acceptable level of usage. Based on its success, there are plans to increase the number of online book collections searched. Conclusion: This library's first foray into federated searching has produced an effective tool for searching across large collections of full-text e-books and has provided a good foundation for the development of other library-based federated searching products.

Foust, Jill E.; Bergen, Phillip; Maxeiner, Gretchen L.; Pawlowski, Peter N.

2007-01-01

88

User support for a library-managed online database search service: the BMA Library free MEDLINE service.  

PubMed

This paper discusses user support in the context of a library-managed online database search service. Experience is drawn from the British Medical Association (BMA) Library's Free MEDLINE Service. More than 9,600 BMA members, who are largely unfamiliar with computer communications and database searching, have registered as users of the service. User support has played a significant role in the development of the service and has comprised four main aspects: an information pack, a help desk, online help, and MEDLINE courses. The paper includes an analysis of help desk usage statistics collected from January 1996 through June 1996, and highlights other relevant research. Plans for further service enhancements and their implications in terms of future user support are discussed. PMID:9285124

Rowlands, J; Yeadon, J; Forrester, W; McSeán, T

1997-07-01

89

Learning Object Categories from Google's Image Search  

Microsoft Academic Search

Current approaches to object category recognition require datasets of training images to be manually prepared, with varying degrees of supervision. We present an approach that can learn an object category from just its name, by uti- lizing the raw output of image search engines available on the Internet. We develop a new model, TSI-pLSA, which extends pLSA (as applied to

Robert Fergus; Fei-fei Li; Pietro Perona; Andrew Zisserman

2005-01-01

90

The Archaeological Remote Sensing Geophysics Image Library  

NSDL National Science Digital Library

Provided by University of Arkansas, Fayetteville, Center for Advanced Spatial Technologies (formerly Boston University Department of Archaeology), this site offers thumbnail images derived from archaeological projects led by Professor Kenneth L. Kvamme. "These projects have utilized ground penetrating radar, proton magnetometry, fluxgate gradiometry, resistivity, and conductivity methods." Some of the sites include prehistoric villages, prehistoric hunting camps, battlefields from the Revolutionary War, Roman sites, and historic stage stations. All images are annotated and the site also offers information on the instruments used in geophysical surveys. Professor Kvamme's homepage also offers images and summaries from several of his recent remote sensing projects.

Kvamme, Kenneth L.

91

State of the art of expert searching: results of a Medical Library Association survey  

PubMed Central

Objectives: Medical Library Association (MLA) members were surveyed to gather background about the current state of expert searching in institutions. The survey results were intended to guide the recommendations of the Task Force on Expert Searching for promoting the importance of expert searching and implementing those recommendations. Methods: MLA members were surveyed, and data obtained from the survey were compiled and analyzed to answer three general questions: what is the perceived value of searching skills to the institution, how do health sciences librarians maintain and improve their searching skills, and how are searching services promoted and/or mandated in the institution. Results: There were 256 responses to the survey. Over 95% of the respondents saw their expert-searching skills were of value to their institutions, primarily through performing mediated searches and search consultations. Over 83% of the respondents believed that their searching skills had improved over the past 10 years. Most indicated that continued training was very important in maintaining and improving their skills. Respondents promoted searching services most frequently through orientations, brochures, and the libraries' Web pages. No respondent's institution mandated expert searching. Less than 2% of respondents' institutions had best practice guidelines related to expert searching, and only about 8% had guidelines or policies that identified situations where expert searching was recommended. Conclusions: The survey supports the belief that health sciences librarians still play a valuable role in searching, particularly in answering questions about treatment options and in providing education. It also highlights the need for more expert searching courses. There has been minimal discussion about the perceived need for expert-searching guidelines in the institutions represented by survey respondents.

Holst, Ruth; Funk, Carla J.

2005-01-01

92

Estimating probabilities of correct identification from results of mass spectral library searches  

Microsoft Academic Search

This work presents a method for using mass spectral match factors reported by library search systems to obtain certain probabilistic\\u000a indicators of correct identification. The overall probability that a retrieval is correct is formally separated into two independent\\u000a terms. One of these is the probability that a retrieval is correct assuming that the correct match is contained in the library.

Stephen E. Stein

1994-01-01

93

NEH Grant Project: The AGS Library's Historic Images  

NSDL National Science Digital Library

The University of Wisconsin at Milwaukee has worked on a number of creative digital projects over the past several years, and this new initiative is worth a look. With financial support from the National Endowment for the Humanities (NEH), their American Geographical Society (AGS) Library has been able to create an online library of historic images from its substantial archive. The goal of the site is provide access to the 68,000 nitrate negatives in its photography collection, and currently visitors can view around 5,000 images here. The images include items from the Bert A. Krawczyk Collection, which features 600 images of China and India taken during World War II by Mr. Krawczyk, who was a photographer stationed both places during this time. Other materials include the collection of Harrison Forman, who was a foreign correspondent for the New York Times, London Times, and the National Broadcasting Company in the 1930s.

94

Integrated paleontological data base and image library  

SciTech Connect

MICROBASE (MICROpaleontology data BASE) is an integrated data base and image retrieval system designed to increase the efficiency and precision with which paleontologists access and interpret paleontological and biostratigraphic data. The project is funded by a consortium of oil companies and coordinated by the American Museum of Natural History with assistance from the American Association of Stratigraphic Palynologists. MICROBASE is a PC-based MS DOS-compatible system operating under Microsoft Windows 3.0 that takes advantage of the latest developments in both analog (video) and digital technology. Images are captured using a video camera mounted on a microscope or using a high-resolution scanner for photographic source material. The image is saved either as a digital file or as an analog 'frame' on a Panasonic optical disk recorder (OMDR). The OMDR can store 108,000 images on one 12-in disk with a retrieval and display time of less than 0.15 second. Microfossil data (nomenclature, synonomy, descriptions, stratigraphic distribution, etc.) are stored as relational tables in an ORACLE DBMS (PALeontological CATalog, or PALCAT), and these textural data are linked to multiple images for each taxon. MICROBASE is the first integrated and widely supported system to electronically archive paleontological data, regardless of fossil group. It provides rapid, easy access to paleontological data, resulting in standardized taxonomy, more efficient identification procedures, substantially reduced learning curves for persons unfamiliar with particular groups, and more effective retention of the cumulative expertise of experienced paleontologists. The Ellis and Messina Catalog of Foraminifera is the first paleontological catalog available on the MICROBASE system.

Goodman, D.K. (Arco Oil and Gas Co., Plano, TX (United States)); Becker, R.C. (Mobil E and P Services, Inc., Dallas, TX (United States)); Van Couvering, J. (American Museum of Natural History, New York, NY (United States)); Ford, L.N. Jr. (BioSpectrum Research, Glen Allen, VA (United States)); Albert, N.R. (Paleoservices Ltd., Watford (United Kingdom))

1991-03-01

95

IPLIB (Image processing library) user's manual  

NASA Technical Reports Server (NTRS)

IPLIB is a collection of HP FORTRAN 77 subroutines and functions that facilitate the use of a COMTAL image processing system driven by an HP-1000 computer. It is intended for programmers who want to use the HP 1000 to drive the COMTAL Vision One/20 system. It is assumed that the programmer knows HP 1000 FORTRAN 77 or at least one FORTRAN dialect. It is also assumed that the programmer has some familiarity with the COMTAL Vision One/20 system.

Faulcon, N. D.; Monteith, J. H.; Miller, K.

1985-01-01

96

ANN: A Library for Approximate Nearest Neighbor Searching  

Microsoft Academic Search

3.37>ffl There are no exponential factors in space, implying that the data structure is practicaleven for very large data sets in high dimensional spaces, irrespective of ffl.ANN is written as a testbed for a class of nearest neighbor searching algorithms, particularlythose based on orthogonal decompositions of space. These include k-d trees [3, 4],balanced box-decomposition trees [2] and other related spatial

David M. Mount; Sunil Arya

1997-01-01

97

Free Library of Philadelphia: Historical Images of Philadelphia  

NSDL National Science Digital Library

The Free Library of Philadelphia has gone above and beyond the call of duty with this collection which covers everything from Germantown to the Navy Yard. This cornucopia contains thousands of images from the Philadelphiana Collection at the Free Library, and most of them are from the second half of the 19th century. On the homepage, visitors will note that they can look around by Neighborhoods, Photographers, and Media. First-time visitors should look around neighborhoods such as Society Hill, Farmount, and Chinatown. The Chinatown area contains some rare images of the Philadelphia College of Pharmacy and local businesses that include the James Spear Stove and Heating Company. Moving on, the Collections area here offers up images that found their way into the 1976 book "Old Philadelphia in Early Photographs." There are over 175 photos here that offer views of Queen Street and the fabulous Wanamaker's store at 13th and Market.

2012-01-01

98

Ambiguities in the Use of Certain Library of Congress Subject Headings for Form and Genre Access to Moving Image Materials  

Microsoft Academic Search

Some Library of Congress Subject Headings have the potential to be used for either subject or form\\/genre access. A selection of LCSH, cognates with terms from Moving image materials: Genre terms, was searched in OCLC's Online Union Catalog to determine the degrees to which they were used for each of these two types of access. It was discovered that the

David Miller

1995-01-01

99

Semantic Based Substitution of Unsupported Access Points in the Library Meta-search Environments  

Microsoft Academic Search

Meta-searching library communities involve access to sources where metadata are invisible behind query interfaces. Many of\\u000a the query interfaces utilize predefined abstract Access Points for the implementation of the search services, without any\\u000a further access to the underlining meta-data and query methods. The existence of unsupported Access Points and its consequences,\\u000a which are either query failures or inconsistent query answers,

Michalis Sfakakis; Sarantos Kapidakis

2008-01-01

100

Design of a flexible image processing library in C++  

NASA Astrophysics Data System (ADS)

There are two crucial, complementary, issues faced during design and implementation of practically any but a simple image processing library. First is an ability to represent a variety of image types, typically the discriminate feature being the pixel type, e.g. binary, short integer, long integer, or floating point. The second issue is implementation of image processing algorithms that will be able to operate on each of the supported image representations. In many traditional library designs this leads to reimplementation of the same algorithm many times, once for each possible image representation. Some attempts to alleviate this problem introduce elaborate schemes of dynamic pixel representation and registration. This results in single algorithm implementation, however, due to dynamic pixel registration, efficiency of these implementations is poor. In this paper, we investigate use of parameterized algorithms and design issues involved in implementing them in C++. We permit single expression of the algorithm to be used with any concrete representation of an image. Use of advanced features of C++ and object-oriented programming allow us to use static pixel representations, where pixel types are resolved during compile time instead of run time. This approach leads to very flexible and efficient implementations. We have both advantages: single algorithm implementation for numerous image representations, and best possible speed of execution.

Sacha, Jaroslaw P.; Shabestari, Behrouz N.; Kohler, Timothy A.

1997-09-01

101

Eclipse: ESO C Library for an Image Processing Software Environment  

NASA Astrophysics Data System (ADS)

Written in ANSI C, eclipse is a library offering numerous services related to astronomical image processing: FITS data access, various image and cube loading methods, binary image handling and filtering (including convolution and morphological filters), 2-D cross-correlation, connected components, cube and image arithmetic, dead pixel detection and correction, object detection, data extraction, flat-fielding with robust fit, image generation, statistics, photometry, image-space resampling, image combination, and cube stacking. It also contains support for mathematical tools like random number generation, FFT, curve fitting, matrices, fast median computation, and point-pattern matching. The main feature of this library is its ability to handle large amounts of input data (up to 2GB in the current version) regardless of the amount of memory and swap available on the local machine. Another feature is the very high speed allowed by optimized C, making it an ideal base tool for programming efficient number-crunching applications, e.g., on parallel (Beowulf) systems.

Devillard, Nicolas

2011-12-01

102

Many Libraries Have Gone to Federated Searching to Win Users Back from Google. Is It Working?  

ERIC Educational Resources Information Center

In the last issue, this journal asked a question on many librarians' minds, and it was pleased with the depth and variety of responses. As suggested by this journal editorial board member Oliver Pesch, readers were asked, "Many libraries have gone to federated searching to win users back from Google. Is it working?" Respondents approached the…

King, Douglas

2008-01-01

103

Managing the implementation of a federated search tool in an academic library  

Microsoft Academic Search

Purpose – The purpose of this paper is to look at some of the broader design and management issues that occur during the implementation of a federated search tool in a modern academic library, and tries to tease out some of the background concepts that librarians should consider. Design\\/methodology\\/approach – An overview of the main advantages and disadvantages of federated

Nicholas Joint

2009-01-01

104

Factors Affecting the Adoption of On-Line Search Services by the Public Library.  

National Technical Information Service (NTIS)

Costs and cost-related factors connected with providing on-line search services through the public library are examined. The examination was based on preliminary results from an on-going evaluation of an experimental program (DIALIB). In the DIALIB experi...

1975-01-01

105

The Effectiveness of a Projected Computerized Presentation in Teaching Online Library Catalog Searching.  

ERIC Educational Resources Information Center

A computerized presentation explaining how to use the library online catalog (NOTIS) was produced at Texas A&M University. A study using students in first-year composition courses verified that students who viewed the presentation were able to use the online catalog more effectively than those who did not, especially for subject searching. (12…

Buchanan, Nancy L.; And Others

1992-01-01

106

Leveraging a common representation for personalized search and summarization in a medical digital library  

Microsoft Academic Search

Despite the large amount of online medical literature, it can be difficult for clinicians to find relevant information at the point of patient care. In this paper, we present techniques to personalize the results of search, making use of the online patient record as a sophisticated, pre-existing user model. Our work in PERSIVAL, a medical digital library, includes methods for

Kathleen R. McKeown; Noemie Elhadad; Vasileios Hatzivassiloglou

2003-01-01

107

Is Google enough? Comparison of an internet search engine with academic library resources  

Microsoft Academic Search

Purpose – The purpose of the study was to compare an internet search engine, Google, with appropriate library databases and systems, in order to assess the relative value, strengths and weaknesses of the two sorts of system. Design\\/methodology\\/approach – A case study approach was used, with detailed analysis and failure checking of results. The performance of the two systems was

Jan Brophy; David Bawden

2005-01-01

108

The Delivery of Computer-Based Bibliographic Search Services by Academic and Research Libraries.  

ERIC Educational Resources Information Center

A survey of 9 machine-readable data base processing centers was carried out under a National Science Foundation grant by the Northeast Academic Science Information Center. The basic issues considered were: the appropriate role of the library in the processing of computer-based searches; the effect of this form of bibliographic access on…

Gardner, Jeffrey J.; And Others

1974-01-01

109

Beyond Failure: Potentially Mitigating Failed Author Searches in the Online Library Catalog through the Use of Linked Data  

ERIC Educational Resources Information Center

Linked data stores house vetted content that can supplement the information available through online library catalogs, potentially mitigating failed author searches if information about the author exists in linked data formats. In this case study, a total of 689 failed author index queries from a large Midwestern academic library's online library

Moulaison, Heather Lea; Stanley, Susan Nicole

2013-01-01

110

CALIL.JP, a new web service that provides one-stop searching of Japan-wide libraries' collections  

NASA Astrophysics Data System (ADS)

Calil.JP is a new free online service that enables federated searching, marshalling and integration of Web-OPAC data on the collections of libraries from around Japan. It offers the search results through user-friendly interface. Developed with a concept of accelerating discovery of fun-to-read books and motivating users to head for libraries, Calil was initially designed mainly for public library users. It now extends to cover university libraries and special libraries. This article presents the Calil's basic capabilities, concept, progress made thus far, and plan for further development as viewed from an engineering development manager.

Yoshimoto, Ryuuji

111

Satisfaction of search experiments in advanced imaging  

NASA Astrophysics Data System (ADS)

The objective of our research is to understand the perception of multiple abnormalities in an imaging examination and to develop strategies for improved diagnostic. We are one of the few laboratories in the world pursuing the goal of reducing detection errors through a better understanding of the underlying perceptual processes involved. Failure to detect an abnormality is the most common class of error in diagnostic imaging and generally is considered the most serious by the medical community. Many of these errors have been attributed to "satisfaction of search," which occurs when a lesion is not reported because discovery of another abnormality has "satisfied" the goal of the search. We have gained some understanding of the mechanisms of satisfaction of search (SOS) traditional radiographic modalities. Currently, there are few interventions to remedy SOS error. For example, patient history that the prompts specific abnormalities, protects the radiologist from missing them even when other abnormalities are present. The knowledge gained from this programmatic research will lead to reduction of observer error.

Berbaum, Kevin S.

2012-02-01

112

American Environmental Photographs, 1891-1936: Images from the University of Chicago Library  

NSDL National Science Digital Library

The indefatigable Library of Congress American Memory collection has expanded yet again with a new exhibit. This site features approximately 4,500 photographs taken by American botanists Henry Chandler Cowles and George Damon Fuller and other ecologists from the University of Chicago between 1891 and 1936. The photos document a wide range of natural environments, ecologies, and plant communities across North America. Users can search the collection by keyword or browse by subject or geographic location. The photos are offered as large thumbnails that link to full-sized images. A special presentation on Ecology and the American Environment rounds out the site.

113

Building a Digital Library for Multibeam Data, Images and Documents  

NASA Astrophysics Data System (ADS)

The Scripps Institution of Oceanography, the UCSD Libraries and the San Diego Supercomputing Center have joined forces to establish a digital library for accessing a wide range of multibeam and marine geophysical data, to a community that ranges from the MGG researcher to K-12 outreach clients. This digital library collection will include 233 multibeam cruises with grids, plots, photographs, station data, technical reports, planning documents and publications, drawn from the holdings of the Geological Data Center and the SIO Archives. Inquiries will be made through an Ocean Exploration Console, reminiscent of a cockpit display where a multitude of data may be displayed individually or in two or three-dimensional projections. These displays will provide access to cruise data as well as global databases such as Global Topography, crustal age, and sediment thickness, thus meeting the day-to-day needs of researchers as well as educators, students, and the public. The prototype contains a few selected expeditions, and a review of the initial approach will be solicited from the user community during the poster session. The search process can be focused by a variety of constraints: geospatial (lat-lon box), temporal (e.g., since 1996), keyword (e.g., cruise, place name, PI, etc.), or expert-level (e.g., K-6 or researcher). The Storage Resource Broker (SRB) software from the SDSC manages the evolving collection as a series of distributed but related archives in various media, from shipboard data through processing and final archiving. The latest version of MB-System provides for the systematic creation of standard metadata, and for the harvesting of metadata from multibeam files. Automated scripts will be used to load the metadata catalog to enable queries with an Oracle database management system. These new efforts to bridge the gap between libraries and data archives are supported by the NSF Information Technology and National Science Digital Library (NSDL) programs, augmented by UC funds, and closely coordinated with Digital Library for Earth System Education (DLESE) activities.

Miller, S. P.; Staudigel, H.; Koppers, A.; Johnson, C.; Cande, S.; Sandwell, D.; Peckman, U.; Becker, J. J.; Helly, J.; Zaslavsky, I.; Schottlaender, B. E.; Starr, S.; Montoya, G.

2001-12-01

114

Optimization and testing of mass spectral library search algorithms for compound identification  

Microsoft Academic Search

Five algorithms proposed in the literature for library search identification of unknown compounds from their low resolution\\u000a mass spectra were optimized and tested by matching test spectra against reference spectra in the NIST-EPA-NIH Mass Spectral\\u000a Database. The algorithms were probability-based matching (PBM), dot-product, Hertz et al. similarity index, Euclidean distance,\\u000a and absolute value distance. The test set consisted of 12,592

Stephen E. Stein; Donald R. Scott

1994-01-01

115

Library+  

ERIC Educational Resources Information Center

This article discusses possible future directions for academic libraries in the post Web/Library 2.0 world. These possible directions include areas such as data literacy, linked data sets, and opportunities for libraries in support of digital humanities. The author provides a brief sketch of the background information regarding the topics and…

Merrill, Alex

2011-01-01

116

Image 100 procedures manual development: Applications system library definition and Image 100 software definition  

NASA Technical Reports Server (NTRS)

An outline for an Image 100 procedures manual for Earth Resources Program image analysis was developed which sets forth guidelines that provide a basis for the preparation and updating of an Image 100 Procedures Manual. The scope of the outline was limited to definition of general features of a procedures manual together with special features of an interactive system. Computer programs were identified which should be implemented as part of an applications oriented library for the system.

Guseman, L. F., Jr.; Decell, H. P., Jr.

1975-01-01

117

Development and tuning of an original search engine for patent libraries in medicinal chemistry  

PubMed Central

Background The large increase in the size of patent collections has led to the need of efficient search strategies. But the development of advanced text-mining applications dedicated to patents of the biomedical field remains rare, in particular to address the needs of the pharmaceutical & biotech industry, which intensively uses patent libraries for competitive intelligence and drug development. Methods We describe here the development of an advanced retrieval engine to search information in patent collections in the field of medicinal chemistry. We investigate and combine different strategies and evaluate their respective impact on the performance of the search engine applied to various search tasks, which covers the putatively most frequent search behaviours of intellectual property officers in medical chemistry: 1) a prior art search task; 2) a technical survey task; and 3) a variant of the technical survey task, sometimes called known-item search task, where a single patent is targeted. Results The optimal tuning of our engine resulted in a top-precision of 6.76% for the prior art search task, 23.28% for the technical survey task and 46.02% for the variant of the technical survey task. We observed that co-citation boosting was an appropriate strategy to improve prior art search tasks, while IPC classification of queries was improving retrieval effectiveness for technical survey tasks. Surprisingly, the use of the full body of the patent was always detrimental for search effectiveness. It was also observed that normalizing biomedical entities using curated dictionaries had simply no impact on the search tasks we evaluate. The search engine was finally implemented as a web-application within Novartis Pharma. The application is briefly described in the report. Conclusions We have presented the development of a search engine dedicated to patent search, based on state of the art methods applied to patent corpora. We have shown that a proper tuning of the system to adapt to the various search tasks clearly increases the effectiveness of the system. We conclude that different search tasks demand different information retrieval engines' settings in order to yield optimal end-user retrieval.

2014-01-01

118

One-encounter search-image formation by araneophagic spiders  

Microsoft Academic Search

An experimental study of search-image use by araneophagic jumping spiders (i.e., salticid spiders that prey routinely on other spiders) supports five conclusions. First, araneophagic salticids have an innate predisposition to form search images for specific prey from their preferred prey category (spiders) rather than for prey from a non-preferred category (insects). Second, single encounters are sufficient for forming search images.

Robert R. Jackson; Daiqin Li

2004-01-01

119

Real time google and live image search re-ranking  

Microsoft Academic Search

Nowadays, web-scale image search engines (e.g. Google, Live Image Search) rely almost purely on surrounding text features. This leads to ambiguous and noisy results. We propose to use adaptive visual similarity to re-rank the text-based search results. A query image is first categorized into one of several predefined intention categories, and a specific similarity measure is used inside each category

Jingyu Cui; Fang Wen; Xiaoou Tang

2008-01-01

120

Multimedia Library  

Cancer.gov

Home News and Events Multimedia Library Multimedia Library Learn more about TCGA, its researchers, components and how it works from our multimedia library. Images Image: Glioblastoma 72 DPI | 300 DPIHistopathological image of cerebral glioblastoma.Wikimedia.org

121

Feasibility of LC\\/TOFMS and elemental database searching as a spectral library for pesticides in food  

Microsoft Academic Search

Traditionally, the screening of unknown pesticides in food has been accomplished by GC\\/MS methods using conventional library-searching routines. However, many of the new polar and thermally labile pesticides are more readily and easily analysed by LC\\/MS methods and no searchable libraries currently exist (with the exception of some user libraries, which are limited). Therefore, there is a need for LC\\/MS

E. Michael Thurman; Imma Ferrer; Octavio Malato; Amadeo Rodriguez Fernández-Alba

2006-01-01

122

The Library in Your Toolbar: You Can Make It Easy to Search Library Resources from Your Own Browser  

ERIC Educational Resources Information Center

For years, patrons have been able to access library services from home and in the library building, but in the world of Google, Yahoo, YouTube, MySpace, and Facebook, library web sites and catalogs are too often not the first place people go to look for information. The innovative use of toolbars could change this. Toolbars have been popular for…

Webster, Peter

2007-01-01

123

Image and Video Search Engine for the World Wide Web  

Microsoft Academic Search

We describe a visual information system prototype for searching for images and videos on the WorldWide Web. New visual information in the form of images, graphics, animations and videos is being published on the Web at an incredible rate. However, cataloging this visual data is beyond the capabilities of current text-based Web search engines. In this paper, we describe a

John R. Smith; Shih-Fu Chang

1997-01-01

124

C++ class library for teaching and research in image processing  

NASA Astrophysics Data System (ADS)

The 'Class Library for Image Processing' (CLIP) provides object-oriented programming facilities in a framework that supports user migration from C. CLIP augments the C/C++ built-in types with just three additions: the picture, the integer range, and the value range. Associated with these are overloaded operators for arithmetic on and between the types. Range limiting is implemented as a modification of conventional indexing. Pel-by-pel and block-by-block iterations are conveniently handled within the picture and range objects, and via callbacks. Each type incorporates error handling. The target users for CLIP will accept object-orientation only it if allows them to save on development time, after minimal learning, without compromising program execution speed. CLIP programs are compact, the required knowledge of C++ is elementary, and the class library's public interface is small. Speed is kept high by minimizing the amount of data in temporary objects, reducing the dynamic memory management overhead. Picture- or block-wide operations and callbacks are efficiently supported by ordering iterations to minimize the number of counter and pointer increments.

Robinson, John A.

1996-02-01

125

Image Digestion and Relevance Feedback in the ImageRover WWW Search Engine  

Microsoft Academic Search

ImageRover is a search by image content navigation tool for the world wide web. The staggering size of the WWW dictates certain strategies and algorithms for image collection, digestion, indexing, and user interface. This pa- per describes two key components of the ImageRover strat- egy: image digestion and relevance feedback. Image di- gestion occurs during image collection; robots digest the

Leonid Taycher; Marco La Cascia

1997-01-01

126

Online Literature Searching and Databases at the U.S. Environmental Protection Agency Environmental Research Center Library, Cincinnati, Ohio.  

ERIC Educational Resources Information Center

This guide to information services used by the Environmental Research Center (ERC) in Cincinnati, the scientific and technical information focal point for the U.S. Environmental Protection Agency (EPA), explains the online searching services available at the Cincinnati Library, outlines the procedure for requesting a literature search, and…

Calkins, Mary L., Comp.

127

Yale University Library: Manuscripts & Archives Digital Images Database  

NSDL National Science Digital Library

Bringing together primary and secondary materials from their extensive archives and manuscript collections, the Yale University Digital Images Database provides interested parties access to a wealth of various ephemera. While the site doesn't contain any specific finding aids, savvy users will be able to use the search functions to locate materials quickly. Additionally, visitors can browse through digitized manuscripts that tell the story of the university in words and images. These archives can be quite a bit of fun, as they include a wide range of architectural drawings and maps that tell how the campus was developed over the centuries. All told, it's a nice way to learn about Yale and some of the people who have been associated with this august place over the years.

128

Multi-scale sub-image search  

Microsoft Academic Search

If an image should be retrieved by its subregions froma large image database, an immense number of possiblequeries will appear. Therefore, the index which encodesthe spatial information of an image, should makeonly few assumptions about possible queries. In addition,this index has to consider different scales of objectsin the image. In this paper, we propose a novelapproach using a hierarchical index

Nicu Sebe; Michael S. Lew; Dionysius P. Huijsmans

1999-01-01

129

High Res at High Speed: Automated Delivery of High-Resolution Images from Digital Library Collections  

Microsoft Academic Search

As primary source materials in the library are digitized and made available online, the focus of related library services is shifting to include new and innovative methods of digital delivery via social media, digital storytelling, and community-based and consortial image repositories. Most images on the Web are not of sufficient quality for most media outlets, so what happens when patrons

R. Niccole Westbrook; Sean Watkins

2012-01-01

130

Scanners and drillers: Characterizing expert visual search through volumetric images  

PubMed Central

Modern imaging methods like computed tomography (CT) generate 3-D volumes of image data. How do radiologists search through such images? Are certain strategies more efficient? Although there is a large literature devoted to understanding search in 2-D, relatively little is known about search in volumetric space. In recent years, with the ever-increasing popularity of volumetric medical imaging, this question has taken on increased importance as we try to understand, and ultimately reduce, errors in diagnostic radiology. In the current study, we asked 24 radiologists to search chest CTs for lung nodules that could indicate lung cancer. To search, radiologists scrolled up and down through a “stack” of 2-D chest CT “slices.” At each moment, we tracked eye movements in the 2-D image plane and coregistered eye position with the current slice. We used these data to create a 3-D representation of the eye movements through the image volume. Radiologists tended to follow one of two dominant search strategies: “drilling” and “scanning.” Drillers restrict eye movements to a small region of the lung while quickly scrolling through depth. Scanners move more slowly through depth and search an entire level of the lung before moving on to the next level in depth. Driller performance was superior to the scanners on a variety of metrics, including lung nodule detection rate, percentage of the lung covered, and the percentage of search errors where a nodule was never fixated.

Drew, Trafton; Vo, Melissa Le-Hoa; Olwal, Alex; Jacobson, Francine; Seltzer, Steven E.; Wolfe, Jeremy M.

2013-01-01

131

Improving Web Image Search by Bag-Based Reranking  

Microsoft Academic Search

Given a textual query in traditional text-based image retrieval (TBIR), relevant images are to be reranked using visual features after the initial text-based search. In this paper, we pro- pose a new bag-based reranking framework for large-scale TBIR. Specifically, we first cluster relevant images using both textual and visual features. By treating each cluster as a \\

Lixin Duan; Wen Li; Ivor Wai-Hung Tsang; Dong Xu

2011-01-01

132

Search strategies in content-based image retrieval  

Microsoft Academic Search

This paper describes two studies that looked at users' ability to formulate visual queries with a Content-Based Image Retrieval system that uses dominant image colour as the primary indexing key. The first experiment examined users' performance with two visual search tools, a sketch tool and a structured browsing tool, with different types of image query. The results showed that while

Sharon McDonald; John Tait

2003-01-01

133

Digital Libraries  

NSDL National Science Digital Library

This projects introduces digital libraries, digital initiatives, search techniques, and the Instructional Architect Review Rubric. Digital Library Information : The Scope of the Digital Library D-Lib Journal article, 1998 2008 Joint Conference on Digital Libraries (JCDL) Annual meeting devoted to Digital Libraries Initiatives : Digital Libraries Initiative The Initiative's focus is to dramatically advance the means to collect, store, and organize information in digital forms, and make it available for searching, retrieval, and processing via communication networks -- all in ...

Heather

2008-09-29

134

Combining history of medicine and library instruction: an innovative approach to teaching database searching to medical students.  

PubMed

Library faculty members at the Health Sciences Library at the LSU Health Shreveport campus offer a database searching class for third-year medical students during their surgery rotation. For a number of years, students completed "ten-minute clinical challenges," but the instructors decided to replace the clinical challenges with innovative exercises using The Edwin Smith Surgical Papyrus to emphasize concepts learned. The Surgical Papyrus is an online resource that is part of the National Library of Medicine's "Turning the Pages" digital initiative. In addition, vintage surgical instruments and historic books are displayed in the classroom to enhance the learning experience. PMID:22853300

Timm, Donna F; Jones, Dee; Woodson, Deidra; Cyrus, John W

2012-01-01

135

Design of combinatorial libraries for the exploration of virtual hits from fragment space searches with LoFT.  

PubMed

A case study is presented illustrating the design of a focused CDK2 library. The scaffold of the library was detected by a feature trees search in a fragment space based on reactions from combinatorial chemistry. For the design the software LoFT (Library optimizer using Feature Trees) was used. The special feature called FTMatch was applied to restrict the parts of the queries where the reagents are permitted to match. This way a 3D scoring function could be simulated. Results were compared with alternative designs by GOLD docking and ROCS 3D alignments. PMID:22148673

Lessel, Uta; Wellenzohn, Bernd; Fischer, J Robert; Rarey, Matthias

2012-02-27

136

Target image search using fMRI signals  

NASA Astrophysics Data System (ADS)

Recent neural signal decoding studies based on functional magnetic resonance imaging (fMRI) have identified the specific image presenting to the subject from a set of potential images, and some studies extend neural decoding into image reconstruction, i.e. image contents that the subject perceived were decoded from the fMRI signals recorded during the subject looking at images. In this paper, we decoded the target images using fMRI signals and described a target image searching method based on the relationship between target image stimuli and fMRI activity. We recorded fMRI data during a serial visual stimuli image presentation task, some of the stimuli images were target images and the rest images were non-target ones. Our fMRI data analysis results showed that in the serial visual presentation task, target images elicited a stereotypical response in the fMRI, which can be detected by multi-voxel pattern analysis (MVPA). Classifiers designed with support vector machine (SVM) used this response to decipher target images from non-target images. The leave-one-run-out cross-validation showed that we can pick out the target images with a possibility far above the chance level, which indicate that there's a neural signatures correlated with the target image recognition process in the human systems.

Xiong, Shi; Song, Sutao; Zhan, Yu; Zhang, Jiacai

2014-03-01

137

Advanced Image Search: A Strategy for Creating Presentation Boards  

ERIC Educational Resources Information Center

Finding relevant digital images to create presentation boards requires advanced search skills. This article describes a course assignment involving a technique designed to develop students' literacy skills with respect to locating images of desired quality and content from Internet databases. The assignment was applied in a collegiate apparel…

Frey, Diane K.; Hines, Jean D.; Swinker, Mary E.

2008-01-01

138

Multimodal medical image retrieval: image categorization to improve search precision  

Microsoft Academic Search

Effective medical image retrieval can be useful in the clinical care of patients, education and research. Traditionally, image retrieval systems have been text-based, relying on the annotations or captions associated with the images. Although text-based information retrieval methods are mature and well researched, they are limited by the quality and availability of the annotations associated with the images. Advances in

Jayashree Kalpathy-Cramer; William R. Hersh

2010-01-01

139

The RightPages Image-Based Electronic Library for Alerting and Browsing  

Microsoft Academic Search

The RightPages electronic library prototype system, which gives users full online library services, is described. The prototype takes advantage of fast hardware, multimedia workstations, and broadband networks to process scientific and technical journals for users and to offer a service that: alerts them to the arrival of new journal articles matching their interest profiles; lets them immediately examine images of

Guy A. Story; Lawrence O'gorman; David Fox; Louise Levy Schaper; H. V. Jagadish

1992-01-01

140

Detection of near-duplicate images for web search  

Microsoft Academic Search

Among the vast numbers of images on the web are many du- plicates and near-duplicates, that is, variants derived from the same original image. Such near-duplicates appear in many web image searches and may represent infringements of copyright or indicate the presence of redundancy. While methods for identifying near-duplicates have been investi- gated, there has been no analysis of the

Jun Jie Foo; Justin Zobel; Ranjan Sinha; Seyed M. M. Tahaghoghi

2007-01-01

141

Internet Access to National Library of Medicine SDI Search Results: The Benefits of Locally Written Software for Automated Postprocessing.  

ERIC Educational Resources Information Center

Library staff at Louisiana State University Medical Center in Shreveport have written two computer programs automating much of its selective dissemination of information (SDI) postprocessing. The software sorts SDI results, gathers and reports statistical data without requiring manual data entry, allows delivery of search results as hard copy or…

Watson, Michael; And Others

1997-01-01

142

A library of problem-solving components based on the integration of the search paradigm with task and method ontologies  

Microsoft Academic Search

In this paper we investigate the reuse of tasks and problem solving methods and we propose a model of how to organize a library of reusable components for knowledge based systems. In our approach we first describe a class of problems by means of a task ontology. Then we instantiate a generic model of problem solving as search in terms

Enrico Motta; Zdenek Zdráhal

1998-01-01

143

Information Retrieval Techniques: The Differences in Cognitive Strategies and Search Behaviors among Graduate Students in an Academic Library.  

ERIC Educational Resources Information Center

Graduate schools have been admitting more and more students older than the "traditional" 18- to 24-year-old campus population. These adult learners may come to their programs of study without formal training in library use in general or literature searches in particular. By examining various successful and unsuccessful strategies used by these…

Simon, Charlotte E.

144

UNM General Library/Technology Application Center Literature Search Service, An Experimental Program, FY 1974. Final Report.  

ERIC Educational Resources Information Center

In July 1973 the University of New Mexico's General Library, in cooperation with the Technology Application Center, introduced a computerized search service for faculty members on a one-year experimental basis. During the study two user evaluation meetings caused some improvements to be made, particularly in the area of working more closely with…

Grogan, Nancy M.

145

Library Media Specialists and Spirituality in Schools: Native American Images as a Beginning.  

ERIC Educational Resources Information Center

Discussion of spirituality in schools focuses on Native American images, especially as used for school mascots and product marketing. Includes various resources, both electronic and printed, that are helpful to school library media specialists as well as other educators. (LRW)

Barron, Daniel D.

2002-01-01

146

Imaging crystal/spectral line search  

SciTech Connect

The following table is a compilation of chance coincidences between x- ray line wavelengths and crystal planes which will reflect those wavelengths near normal incidence. The motivation is to explore the possibilities for expanding the range of choices for near normal incidence x-ray crystal imaging.

Koch, J.A.

1998-02-16

147

Full-text federated search of text-based digital libraries in peer-to-peer networks  

Microsoft Academic Search

Peer-to-peer (P2P) networks integrate autonomous computing resources without requiring a central coordinating authority, which\\u000a makes them a potentially robust and scalable model for providing federated search capability to large-scale networks of text-based\\u000a digital libraries. However, peer-to-peer networks have so far provided very limited support for full-text federated search\\u000a with relevance-based document ranking. This paper provides solutions to full-text federated search

Jie Lu; Jamie Callan

2006-01-01

148

On-Line Computer Literature Searching in the Small-To-Medium Size Research Library. A Comparison of Results in 1973 and 1974 Periods.  

ERIC Educational Resources Information Center

The experience of the research library of International Flavors and Fragrances using on-line data bases is described. On-line searches of Chemical Abstracts condensates and other data bases are compared with the library's previous experience with manual indexes. Two tables show the number of literature searches conducted and the time required.…

Linepensel, Kenneth C.

149

Tabu search algorithm for DNA sequencing by hybridization with isothermic libraries  

Microsoft Academic Search

In this paper, a problem of isothermic DNA sequencing by hybridization (SBH) is considered. In isothermic SBH a new type of oligonucleotide libraries is used. The library consists of oligonucleotides of different lengths depending on an oligonucleotide content. It is assumed that every oligonucleotide in such a library has an equal melting temperature. Each nucleotide adds its increment to the

Jacek Blazewicz; Piotr Formanowicz; Marta Kasprzak; Wojciech T. Markiewicz; Aleksandra Swiercz

2004-01-01

150

Rebels in Search of Champions: Envisioning the Library of the Future.  

ERIC Educational Resources Information Center

The Main Library at the Lawrence Livermore National Laboratory (California) is actively challenging the traditional roles of libraries and information scientists. Innovative projects revolve around biomedical and environmental information services and envision new ways to serve information users. The library of the future will involve increased…

Moulik, Amal; Lai, Dennis

1992-01-01

151

Multimodal image registration by iteratively searching keypoint correspondences  

NASA Astrophysics Data System (ADS)

This paper proposes a multimodal image registration algorithm through searching the best matched keypoints by employing the global information. Keypoints are detected from images from both the reference and test images. For each test keypoint, a certain number of reference keypoints are chosen as mapping candidates. A triplet of keypoint mappings determine an affine transformation, and then it is evaluated with the similarity metric between the reference image and the transformed test image by the determined transformation. An iterative process is conducted on triplets of keypoint mappings, and for every test keypoint updates and stores its best matched reference keypoint. The similarity metric is defined to be the number of overlapped edge pixels over entire images, allowing for global information being incorporated in evaluating triplets of mappings. Experimental results show that the proposed algorithm can provide more accurate registration than existing methods on EO-IR images.

Li, Yong; Stevenson, Robert

2013-02-01

152

BIRP - A way to search through image engineering data  

NASA Technical Reports Server (NTRS)

Several hundred thousand images have been returned by planetary missions and by earth-orbiting satellites. Locating specific images for study based on engineering data can be cumbersome and time consuming if done manually. BIRP, a FORTRAN program for small computers, is designed to quickly search through catalogs of image engineering data. A description of the desired images is entered and the BIRP program finds the images meeting the requirements. A videodisk player or microfiche reader may be controlled by BIRP so that images can be viewed immediately after a search. A search through 50,000 images on a single parameter takes less than 1 min on a minicomputer. Data for each parameter is stored in a separate file so that the number of files and thus the storage space required may be varied to fit computers with different storage capacities. Most modern minicomputers with FORTRAN compilers and an 8-bit byte variable type may use BIRP with minor modifications to the program.

Bolef, L. K.; Guinness, E. A.; Arvidson, R. E.

1982-01-01

153

A rational workflow for sequential virtual screening of chemical libraries on searching for new tyrosinase inhibitors.  

PubMed

The tyrosinase is a bifunctional, copper-containing enzyme widely distributed in the phylogenetic tree. This enzyme is involved in the production of melanin and some other pigments in humans, animals and plants, including skin pigmentations in mammals, and browning process in plants and vegetables. Therefore, enzyme inhibitors has been under the attention of the scientist community, due to its broad applications in food, cosmetic, agricultural and medicinal fields, to avoid the undesirable effects of abnormal melanin overproduction. However, the research of novel chemical with antityrosinase activity demands the use of more efficient tools to speed up the tyrosinase inhibitors discovery process. This chapter is focused in the different components of a predictive modeling workflow for the identification and prioritization of potential new compounds with activity against the tyrosinase enzyme. In this case, two structure chemical libraries Spectrum Collection and Drugbank are used in this attempt to combine different virtual screening data mining techniques, in a sequential manner helping to avoid the usually expensive and time consuming traditional methods. Some of the sequential steps summarize here comprise the use of drug-likeness filters, similarity searching, classification and potency QSAR multiclassifier systems, modeling molecular interactions systems, and similarity/diversity analysis. Finally, the methodologies showed here provide a rational workflow for virtual screening hit analysis and selection as a promissory drug discovery strategy for use in target identification phase. PMID:24853562

Le-Thi-Thu, Huong; Casanola-Martín, Gerardo M; Marrero-Ponce, Yovani; Rescigno, Antonio; Abad, Concepcion; Khan, Mahmud Tareq Hassan

2014-01-01

154

Retrieving and Ranking Unannotated Images through Collaboratively Mining Online Search Results  

SciTech Connect

We present a new image search and ranking algorithm for retrieving unannotated images by collaboratively mining online search results, which consist of online image and text search results. The online image search results are leveraged as reference examples to perform content-based image search over unannotated images. The online text search results are utilized to estimate individual reference images relevance to the search query as not all the online image search results are closely related to the query. Overall, the key contribution of our method lies in its capability to deal with unreliable online image search results through jointly mining visual and textual aspects of online search results. Through such collaborative mining, our algorithm infers the relevance of an online search result image to a text query. Once we estimate a query relevance score for each online image search result, we can selectively use query specific online search result images as reference examples for retrieving and ranking unannotated images. To explore the performance of our algorithm, we tested our algorithm both on the standard public image datasets and several modest sized personal photo collections. We also compared the performance of our method with that of two peer methods. The results are very positive, indicating that our algorithm is superior to existing content-based image search algorithms for retrieving and ranking unannotated images. Overall, the main advantage of our algorithm comes from its collaborative mining over online search results both in the visual and textual domains.

Xu, Songhua [ORNL; Jiang, Hao [University of Hong Kong, The; Lau, Francis [University of Hong Kong, The

2011-01-01

155

Development and experimental test of support vector machines virtual screening method for searching Src inhibitors from large compound libraries  

PubMed Central

Background Src plays various roles in tumour progression, invasion, metastasis, angiogenesis and survival. It is one of the multiple targets of multi-target kinase inhibitors in clinical uses and trials for the treatment of leukemia and other cancers. These successes and appearances of drug resistance in some patients have raised significant interest and efforts in discovering new Src inhibitors. Various in-silico methods have been used in some of these efforts. It is desirable to explore additional in-silico methods, particularly those capable of searching large compound libraries at high yields and reduced false-hit rates. Results We evaluated support vector machines (SVM) as virtual screening tools for searching Src inhibitors from large compound libraries. SVM trained and tested by 1,703 inhibitors and 63,318 putative non-inhibitors correctly identified 93.53%~ 95.01% inhibitors and 99.81%~ 99.90% non-inhibitors in 5-fold cross validation studies. SVM trained by 1,703 inhibitors reported before 2011 and 63,318 putative non-inhibitors correctly identified 70.45% of the 44 inhibitors reported since 2011, and predicted as inhibitors 44,843 (0.33%) of 13.56M PubChem, 1,496 (0.89%) of 168 K MDDR, and 719 (7.73%) of 9,305 MDDR compounds similar to the known inhibitors. Conclusions SVM showed comparable yield and reduced false hit rates in searching large compound libraries compared to the similarity-based and other machine-learning VS methods developed from the same set of training compounds and molecular descriptors. We tested three virtual hits of the same novel scaffold from in-house chemical libraries not reported as Src inhibitor, one of which showed moderate activity. SVM may be potentially explored for searching Src inhibitors from large compound libraries at low false-hit rates.

2012-01-01

156

Optimization of reference library used in content-based medical image retrieval scheme  

SciTech Connect

Building an optimal image reference library is a critical step in developing the interactive computer-aided detection and diagnosis (I-CAD) systems of medical images using content-based image retrieval (CBIR) schemes. In this study, the authors conducted two experiments to investigate (1) the relationship between I-CAD performance and size of reference library and (2) a new reference selection strategy to optimize the library and improve I-CAD performance. The authors assembled a reference library that includes 3153 regions of interest (ROI) depicting either malignant masses (1592) or CAD-cued false-positive regions (1561) and an independent testing data set including 200 masses and 200 false-positive regions. A CBIR scheme using a distance-weighted K-nearest neighbor algorithm is applied to retrieve references that are considered similar to the testing sample from the library. The area under receiver operating characteristic curve (A{sub z}) is used as an index to evaluate the I-CAD performance. In the first experiment, the authors systematically increased reference library size and tested I-CAD performance. The result indicates that scheme performance improves initially from A{sub z}=0.715 to 0.874 and then plateaus when the library size reaches approximately half of its maximum capacity. In the second experiment, based on the hypothesis that a ROI should be removed if it performs poorly compared to a group of similar ROIs in a large and diverse reference library, the authors applied a new strategy to identify 'poorly effective' references. By removing 174 identified ROIs from the reference library, I-CAD performance significantly increases to A{sub z}=0.914 (p<0.01). The study demonstrates that increasing reference library size and removing poorly effective references can significantly improve I-CAD performance.

Park, Sang Cheol; Sukthankar, Rahul; Mummert, Lily; Satyanarayanan, Mahadev; Zheng Bin [Department of Radiology, University of Pittsburgh, 3362 Fifth Avenue, Pittsburgh, Pennsylvania 15213 (United States); Intel Research Pittsburgh, 4720 Forbes Avenue, Pittsburgh, Pennsylvania 15213 (United States); School of Computer Science, Carnegie Mellon University, 5000 Forbes Avenue, Pittsburgh, Pennsylvania 15213 (United States); Department of Radiology, University of Pittsburgh, 3362 Fifth Avenue, Pittsburgh, Pennsylvania 15213 (United States)

2007-11-15

157

Hard x ray imaging graphics development and literature search  

NASA Technical Reports Server (NTRS)

This report presents work performed between June 1990 and June 1991 and has the following objectives: (1) a comprehensive literature search of imaging technology and coded aperture imaging as well as relevant topics relating to solar flares; (2) an analysis of random number generators; and (3) programming simulation models of hard x ray telescopes. All programs are compatible with NASA/MSFC Space Science LAboratory VAX Cluster and are written in VAX FORTRAN and VAX IDL (Interactive Data Language).

Emslie, A. Gordon

1991-01-01

158

Image save and carry system-based teaching-file library  

NASA Astrophysics Data System (ADS)

Digital imaging technology has introduced some new possibilities of forming teaching files without films. IS&C (Image Save & Carry) system, which is based on magneto-optic disc, is a good medium for this purpose, because of its large capacity, prompt access time, and unified format independent of operating systems. The author have constructed a teaching file library, on which user can add and edit images. CD-ROM and IS&C satisfy most of basic criteria for teaching file construction platform. CD-ROM is the best medium for circulating large numbers of identical copies, while IS&C is advantageous in personal addition and editing of library.

Morimoto, Kouji; Kimura, Michio; Fujii, Toshiyuki

1994-05-01

159

A General System for the Retrieval of Document Images from Digital Libraries  

Microsoft Academic Search

Large collections of scanned documents (books and jour- nals) are now available in Digital Libraries. The most com- mon method for retrieving relevant information from these collections is image browsing, but this approach is not feasi- ble for books with more than a few dozen pages. The recog- nition of printed text can be made on the images by OCR

Simone Marinai; Emanuele Marino; Francesca Cesarini; Giovanni Soda

2004-01-01

160

Oriented modulation for watermarking in direct binary search halftone images.  

PubMed

In this paper, a halftoning-based watermarking method is presented. This method enables high pixel-depth watermark embedding, while maintaining high image quality. This technique is capable of embedding watermarks with pixel depths up to 3 bits without causing prominent degradation to the image quality. To achieve high image quality, the parallel oriented high-efficient direct binary search (DBS) halftoning is selected to be integrated with the proposed orientation modulation (OM) method. The OM method utilizes different halftone texture orientations to carry different watermark data. In the decoder, the least-mean-square-trained filters are applied for feature extraction from watermarked images in the frequency domain, and the naïve Bayes classifier is used to analyze the extracted features and ultimately to decode the watermark data. Experimental results show that the DBS-based OM encoding method maintains a high degree of image quality and realizes the processing efficiency and robustness to be adapted in printing applications. PMID:22581134

Guo, Jing-Ming; Su, Chang-Cheng; Liu, Yun-Fu; Lee, Hua; Lee, Jiann-Der

2012-09-01

161

A Mentor/Research Model to Teach Library Skills: An Introduction to Database Searching.  

ERIC Educational Resources Information Center

As a way to teach database searching skills, students in a nursing research class were paired with, and performed literature searches for, faculty members or community health care professionals. Because students did not formulate questions or initial search terms, they concentrated on the search process, learning how professionals find and use…

Nissen, Karen R.; Ross, Barbara A.

1996-01-01

162

Minnesota Zoological Garden Library.  

ERIC Educational Resources Information Center

Describes the history and functions of the Minnesota Zoological Garden library. Topics covered include the library collections; library services, including online search capabilities; and the various groups of users served by the library. (three references) (CLB)

Norell, Angela

1988-01-01

163

IFLA General Conference, 1992. Presession Seminar on the Status, Reputation, and Image of the Library and Information Profession. Papers.  

ERIC Educational Resources Information Center

Seven papers are presented from the presession of the 1992 International Federation of Library Associations and Institutions (IFLA) conference dealing with the status and reputation of the library and information professions, which continue to suffer a lack of image in society. Suggestions for improving the status of the library and information…

International Federation of Library Associations and Institutions, London (England).

164

Generating diverse and representative image search results for landmarks  

Microsoft Academic Search

Can we leverage the community-contributed collections of rich media on the web to automatically generate represen- tative and diverse views of the world's landmarks? We use a combination of context- and content-based tools to gener- ate representative sets of images for location-driven features and landmarks, a common search task. To do that, we us- ing location and other metadata, as

Lyndon S. Kennedy; Mor Naaman

2008-01-01

165

FORWARD LIBRARY SEARCHING OF PREVIOUSLY-QUANTITATED PEAKS, USING A SCAN LIST CREATED FROM A QUANTITATION LIST BY A NOVEL FORTRAN PROGRAM FOR THE INCOS DATA SYSTEM  

EPA Science Inventory

A new method is discussed to use an INCOS data system to perform forward library searches. A FORTRAN program was designed which creates a scan list from a quantitation list to help perform the task....

166

Implementation of a Federated Search System in the Academic Library: Lessons Learned  

Microsoft Academic Search

This article will address the problems of developing and implementing a federated searching system and the involvement by reference staff expected to use, teach, and promote it. Implementation of federated search usually begins with developing basic technical functionality and then progresses to increased participation by public service librarians and system users in order to refine searching interfaces and content retrieval

Charles Lockwood; Patricia MacDonald

2007-01-01

167

Project GRACE:A grid based search tool for the global digital library  

Microsoft Academic Search

The paper will report on the progress of an ongoing EU project called GRACE - Grid Search and Categorization Engine (http:\\/\\/www.grace-ist.org). The project participants are CERN, Sheffield Hallam University, Stockholm University, Stuttgart University, GL 2006 and Telecom Italia. The project started in 2002 and will finish in 2005, resulting in a Grid based search engine that will search across a

Frank Scholze; Glenn Haya; Jens Vigen; Petra Prazak

2004-01-01

168

Digitization and the Creation of Virtual Libraries: The Princeton University Image Card Catalog--Reaping the Benefits of Imaging.  

ERIC Educational Resources Information Center

Describes a project at the Princeton University libraries that converted the pre-1981 public card catalog, using digital imaging and optical character recognition technology, to fully tagged and indexed records of text in MARC format that are available on an online database and will be added to the online catalog. (LRW)

Henthorne, Eileen

1995-01-01

169

Library Resources  

Cancer.gov

Library Resources Literature Search via PubMed NOTE: PubMed replaces Entrez (previously limited to Molecular Biology references in Medline). Searches are now free, with no account required, either for Grateful Med or PubMed. National Library of Medicine NIH

170

Teaching image processing and pattern recognition with the Intel OpenCV library  

NASA Astrophysics Data System (ADS)

In this paper we present an approach to teaching image processing and pattern recognition with the use of the OpenCV library. Image processing, pattern recognition and computer vision are important branches of science and apply to tasks ranging from critical, involving medical diagnostics, to everyday tasks including art and entertainment purposes. It is therefore crucial to provide students of image processing and pattern recognition with the most up-to-date solutions available. In the Institute of Electronics at the Technical University of Lodz we facilitate the teaching process in this subject with the OpenCV library, which is an open-source set of classes, functions and procedures that can be used in programming efficient and innovative algorithms for various purposes. The topics of student projects completed with the help of the OpenCV library range from automatic correction of image quality parameters or creation of panoramic images from video to pedestrian tracking in surveillance camera video sequences or head-movement-based mouse cursor control for the motorically impaired.

Koz?owski, Adam; Królak, Aleksandra

2009-06-01

171

Searching for Materials to Teach about Religion? Check Your School Library.  

ERIC Educational Resources Information Center

Provides a reference guide on religious materials in the public school library. Argues that social studies teachers can integrate references on religion into their teaching while respecting the freedom of conscience of their students. Identifies documents, fiction, nonfiction, periodicals, and the appropriate section of the Dewey Decimal…

Boardman, Edna M.

1992-01-01

172

Toward bridging the annotation-retrieval gap in image search by a generative modeling approach  

Microsoft Academic Search

While automatic image annotation remains an actively pursued research topic, enhancement of image search through its use has not been extensively explored. We propose an annotation-driven image retrieval approach and argue that under a number of different scenarios, this is very effective for semantically meaningful image search. In particular, our system is demonstrated to effectively handle cases of partially tagged

Ritendra Datta; Weina Ge; Jia Li; James Ze Wang

2006-01-01

173

Protocols for printing thick film ceramic libraries using the London University Search Instrument (LUSI)  

SciTech Connect

Thick film combinatorial libraries can be prepared by mixing ceramic suspensions using stepper-driven syringes to control ink-jet-printing nozzles, but a more tolerant and efficient method has been devised using a simplification of the same equipment. By simplifying the printing sequence and using direct deposition from the stepper syringes, the time committed to a repetitive sequence of priming and cleaning the ink-jet printer nozzles is reduced. Polytetrafluoroethylene (PTFE) open ended tubes and commercial pipette tips are used as the printing nozzles. Calibration and corrections for the method are described. This method opens up the possibility for making ceramic libraries more rapidly with much simpler and less expensive equipment.

Chen, L.; Zhang, Y.; Yang, S.; Evans, J. R. G. [Queen Mary, University of London, Mile End Road, London E1 4NS (United Kingdom)

2007-07-15

174

Online Literature Searching and Databases at the U.S. Environmental Research Center Library, Cincinnati, Ohio.  

National Technical Information Service (NTIS)

This guide to information services used by the Environmental Research Center (ERC) in Cincinnati, the scientific and technical information focal point for the U.S. Environmental Protection Agency (EPA), explains the online searching services available at ...

M. L. Calkins

1978-01-01

175

Protocols for printing thick film ceramic libraries using the London University Search Instrument (LUSI)  

Microsoft Academic Search

Thick film combinatorial libraries can be prepared by mixing ceramic suspensions using stepper-driven syringes to control ink-jet-printing nozzles, but a more tolerant and efficient method has been devised using a simplification of the same equipment. By simplifying the printing sequence and using direct deposition from the stepper syringes, the time committed to a repetitive sequence of priming and cleaning the

L. Chen; Y. Zhang; S. Yang; J. R. G. Evans

2007-01-01

176

Exploiting Chemical Libraries, Structure, and Genomics in the Search for Kinase Inhibitors  

Microsoft Academic Search

Selective protein kinase inhibitors were developed on the basis of the unexpected binding mode of 2,6,9-trisubstituted purines to the adenosine triphosphate-binding site of the human cyclin-dependent kinase 2 (CDK2). By iterating chemical library synthesis and biological screening, potent inhibitors of the human CDK2-cyclin A kinase complex and of Saccharomyces cerevisiae Cdc28p were identified. The structural basis for the binding affinity

David J. Lockhart; Sung-Hou Kim; Laurent Meijer; Sophie LeClerc; Georjana Barnes; David O. Morgan; F. Hernan Espinoza; Soojin Kwon; Andy-Mark W. H. Thunnissen; Lisa Wodicka; Nathanael S. Gray; Peter G. Schultz; Thea C. Norman

1998-01-01

177

Enhance the interoperability of the library search systems with zSAPN  

Microsoft Academic Search

The wide adoption of the Z39.50 protocol from the Libraries exposes their abilities to participate in a distributed environment. In spite of the specification of a unified global access mechanism from the Z39.50 protocol, unsupported Access Points result to query failures and\\/or inconsistent answers. A challenge to this issue is to substitute an unsupported Access Point with others, so that

Michalis Sfakakis; Sarantos Kapidakis

2008-01-01

178

A 3D metal artifact correction method in cone-beam CT bone imaging by using an implant image library  

NASA Astrophysics Data System (ADS)

Cone-beam CT (CBCT) technique has been used by orthopedists to monitor bone graft growth after orthopedic surgery. In order to correct severe metal artifacts in reconstructed images caused by metal implants used in bone grafting, a three-dimensional metal artifact correction method has been previously proposed. The implants' mathematic boundaries were generated to help to segment metal from reconstructed images. The segmented metal implants were forward-projected onto the detector to create metal-only projections to compensate for beam-hardening effect. This method was proved effective with the metal implants of regular shape which can be simulated by simple 3D primitives, such as cuboid, cylinder and cone. But for metal implants of arbitrary shape, their boundaries are difficult to define mathematically. To solve this problem, this paper proposed a method by setting up an implant image library and using the implants' a priori shape information from the library during the artifact correction. The implants were acquired and scanned before the surgery and their a priori information were stored in a library. During the artifact correction, the library was called to provide the shape information of the implants to help to do the implant segmentation. The segmented implants were forward-projected onto the detector to generate implant-only projections by a cone-beam forward-projection technique. Beam-hardening effect in the original projections was then compensated by high polynomial orders of implant projections. Finally, the corrected projections were back-projected to produce artifacts-reduced images. Both phantom studies and patient studies were conducted to test this correction method. Results from both studies show the artifacts have been greatly reduced and the accuracy of bone volume measurement has been increased.

Zhang, Yan; Ning, Ruola; Conover, David

2008-04-01

179

HSI-Find: A Visualization and Search Service for Terascale Spectral Image Catalogs  

NASA Astrophysics Data System (ADS)

Imaging spectrometers are remote sensing instruments commonly deployed on aircraft and spacecraft. They provide surface reflectance in hundreds of wavelength channels, creating data cubes known as hyperspecrtral images. They provide rich compositional information making them powerful tools for planetary and terrestrial science. These data products can be challenging to interpret because they contain datapoints numbering in the thousands (Dawn VIR) or millions (AVIRIS-C). Cross-image studies or exploratory searches involving more than one scene are rare; data volumes are often tens of GB per image and typical consumer-grade computers cannot store more than a handful of images in RAM. Visualizing the information in a single scene is challenging since the human eye can only distinguish three color channels out of the hundreds available. To date, analysis has been performed mostly on single images using purpose-built software tools that require extensive training and commercial licenses. The HSIFind software suite provides a scalable distributed solution to the problem of visualizing and searching large catalogs of spectral image data. It consists of a RESTful web service that communicates to a javascript-based browser client. The software provides basic visualization through an intuitive visual interface, allowing users with minimal training to explore the images or view selected spectra. Users can accumulate a library of spectra from one or more images and use these to search for similar materials. The result appears as an intensity map showing the extent of a spectral feature in a scene. Continuum removal can isolate diagnostic absorption features. The server-side mapping algorithm uses an efficient matched filter algorithm that can process a megapixel image cube in just a few seconds. This enables real-time interaction, leading to a new way of interacting with the data: the user can launch a search with a single mouse click and see the resulting map in seconds. This allows the user to quickly explore each image, ascertain the main units of surface material, localize outliers, and develop an understanding of the various materials' spectral characteristics. The HSIFind software suite is currently in beta testing at the Planetary Science Institute and a process is underway to release it under an open source license to the broader community. We believe it will benefit instrument operations during remote planetary exploration, where tactical mission decisions demand rapid analysis of each new dataset. The approach also holds potential for public spectral catalogs where its shallow learning curve and portability can make these datasets accessible to a much wider range of researchers. Acknowledgements: The HSIFind project acknowledges the NASA Advanced MultiMission Operating System (AMMOS) and the Multimission Ground Support Services (MGSS). E. Palmer is with the Planetary Science Institute, Tucson, AZ. Other authors are with the Jet Propulsion Laboratory, Pasadena, CA. This work was carried out at the Jet Propulsion Laboratory, California Institute of Technology under a contract with the National Aeronautics and Space Administration. Copyright 2013, California Institute of Technology.

Thompson, D. R.; Smith, A. T.; Castano, R.; Palmer, E. E.; Xing, Z.

2013-12-01

180

Using relevant regions in image search and query refinement for medical CBIR  

NASA Astrophysics Data System (ADS)

In clinical decision processes, relevant scientific publications and their associated medical images can provide valuable and insightful information. However, effectively searching through both text and image data is a difficult and arduous task. More specifically in the area of image search, finding similar images (or regions within images) poses another significant hurdle for effective knowledge dissemination. Thus, we propose a method using local regions within images to perform and refine medical image retrieval. In our first example, we define and extract large, characteristic regions within an image, and then show how to use these regions to match a query image to similar content. In our second example, we enable the formulation of a mixed query based upon text, image, and region information, to better represent the end user's search intentions. Given our new framework for region-based queries, we present an improved set of similar search results.

Kim, Edward; Antani, Sameer; Huang, Xiaolei; Long, L. Rodney; Demner-Fushman, Dina

2011-03-01

181

Blocking of pornography-seeking behavior in digital image libraries: adventures in the skin trade.  

PubMed

The escalating competition between online pornography - seeking and disseminating behaviors and technologies that attempt to reduce them creates technical, semantic and legal barriers to the legitimate discussion of and education about sensitive health issues involving sexuality, anatomy and pathology, especially when image-based knowledge is used. The effects of this competition on the use and management of an online dermatology atlas are described with a discussion on the importance of anticipating, addressing and controlling this problem while developing and maintaining image-based digital libraries and other e-Health applications. PMID:16779077

Lehmann, Christoph U; Cohen, Bernard A; Kim, George R

2005-01-01

182

A critical evaluation of spectral library searching for the application of automotive paint database  

Microsoft Academic Search

Hit-and-run cases can be investigated by comparing paint traces collected from traffic scene with standard paints stored in a database. IR spectra of automobiles have been amassed in a database for searching purposes. Based on weather conditions and paints in different varying regions, this IR spectra database should be evaluated for its forensic application. Original automotive paints were herein provided

Wei-Tun Chang; Chi-Chung Yu; Yung-Yueh Tsai; Mei Hua

183

Subspaces indexing model on Grassmann manifold for image search.  

PubMed

Conventional linear subspace learning methods like principal component analysis (PCA), linear discriminant analysis (LDA) derive subspaces from the whole data set. These approaches have limitations in the sense that they are linear while the data distribution we are trying to model is typically nonlinear. Moreover, these algorithms fail to incorporate local variations of the intrinsic sample distribution manifold. Therefore, these algorithms are ineffective when applied on large scale datasets. Kernel versions of these approaches can alleviate the problem to certain degree but face a serious computational challenge when data set is large, where the computing involves Eigen/QP problems of size N × N. When N is large, kernel versions are not computationally practical. To tackle the aforementioned problems and improve recognition/searching performance, especially on large scale image datasets, we propose a novel local subspace indexing model for image search termed Subspace Indexing Model on Grassmann Manifold (SIM-GM). SIM-GM partitions the global space into local patches with a hierarchical structure; the global model is, therefore, approximated by piece-wise linear local subspace models. By further applying the Grassmann manifold distance, SIM-GM is able to organize localized models into a hierarchy of indexed structure, and allow fast query selection of the optimal ones for classification. Our proposed SIM-GM enjoys a number of merits: 1) it is able to deal with a large number of training samples efficiently; 2) it is a query-driven approach, i.e., it is able to return an effective local space model, so the recognition performance could be significantly improved; 3) it is a common framework, which can incorporate many learning algorithms. Theoretical analysis and extensive experimental results confirm the validity of this model. PMID:21324783

Wang, Xinchao; Li, Zhu; Tao, Dacheng

2011-09-01

184

Establishment of a search library about benzylisoquinoline alkaloids based on selective separation on the binaphthyl column and standard analysis on C18 column.  

PubMed

A search library about benzylisoquinoline alkaloids was established based on preparation of alkaloid fractions from Rhizoma coptidis, Cortex phellodendri, and Rhizoma corydalis. In this work, two alkaloid fractions from each herbal medicine were first prepared based on selective separation on the "click" binaphthyl column. And then these alkaloid fractions were analyzed on C18 column by liquid chromatography coupled with tandem mass spectrometry. Many structure-related compounds were included in these alkaloids fractions, which led to easy separation and good MS response in further work. Therefore, a search library of 52 benzylisoquinoline alkaloids was established, which included eight aporphine, 19 tetrahydroprotoberberine, two protopine, two benzyltetrahydroisoquinoline, and 21 protoberberine alkaloids. The information of the search library contained compound names, structures, retention times, accurate masses, fragmentation pathways of benzylisoquionline alkaloids, and their sources from three herbal medicines. Using such a library, the alkaloids, especially those trace and unknown components in some herbal medicine could be accurately and quickly identified. In addition, the distribution of benzylisoquinoline alkaloids in the herbal medicines could be also summarized by searching the source samples in the library. PMID:23109405

Liu, Qiaoxia; Zhou, Binbin; Wang, Xinliang; Ke, Yanxiong; Jin, Yu; Yin, Lihui; Liang, Xinmiao

2012-12-01

185

iMap: a stable layout for navigating large image collections with embedded search  

NASA Astrophysics Data System (ADS)

Effective techniques for organizing and visualizing large image collections are in growing demand as visual search gets increasingly popular. Targeting an online astronomy archive with thousands of images, we present our solution for image search and clustering based on the evaluation image similarity using both visual and textual information. To lay out images, we introduce iMap, a treemap-based representation for visualizing and navigating image search and clustering results. iMap not only makes effective use of available display area to arrange images but also maintains stable update when images are inserted or removed during the query. We also develop an embedded visualization that integrates image tags for in-place search refinement. We show the effectiveness of our approach by demonstrating experimental results and conducting a comparative user study.

Wang, Chaoli; Reese, John P.; Zhang, Huan; Tao, Jun; Nemiroff, Robert J.

2013-01-01

186

Imaging ATUM ultrathin section libraries with WaferMapper: a multi-scale approach to EM reconstruction of neural circuits  

PubMed Central

The automated tape-collecting ultramicrotome (ATUM) makes it possible to collect large numbers of ultrathin sections quickly—the equivalent of a petabyte of high resolution images each day. However, even high throughput image acquisition strategies generate images far more slowly (at present ~1 terabyte per day). We therefore developed WaferMapper, a software package that takes a multi-resolution approach to mapping and imaging select regions within a library of ultrathin sections. This automated method selects and directs imaging of corresponding regions within each section of an ultrathin section library (UTSL) that may contain many thousands of sections. Using WaferMapper, it is possible to map thousands of tissue sections at low resolution and target multiple points of interest for high resolution imaging based on anatomical landmarks. The program can also be used to expand previously imaged regions, acquire data under different imaging conditions, or re-image after additional tissue treatments.

Hayworth, Kenneth J.; Morgan, Josh L.; Schalek, Richard; Berger, Daniel R.; Hildebrand, David G. C.; Lichtman, Jeff W.

2014-01-01

187

Digital Libraries.  

ERIC Educational Resources Information Center

Provides an overview of digital libraries research, practice, and literature. Highlights include new technologies; redefining roles; historical background; trends; creating digital content, including conversion; metadata; organizing digital resources; services; access; information retrieval; searching; natural language processing; visualization;…

Fox, Edward A.; Urs, Shalini R.

2002-01-01

188

Legacy Tobacco Documents Library  

NSDL National Science Digital Library

The University of California, San Francisco Library and the American Legacy Foundation recently released the Legacy Tobacco Documents Library (LTDL), a collection of more than 20 million previously private documents from tobacco industry files. Ranging from approximately the 1950s to recent years, LTDL offers searching, viewing, and downloading of documents, covering projects central to the tobacco industry like marketing, research and development, cigarette analysis and design, as well as industry efforts to establish business in developing countries. Within the next 18 months, more documents will be added to the already extensive collection. Currently, viewers may perform simple or advanced searches; view documents in Adobe Reader format (.pdf) or tagged image file format (.tif); or for a quick look, utilize the page-by-page option to view .gif images within the browser.

2002-01-01

189

A new matlab® library to interactively analyze logging data and borehole wall images and to recenter borehole acoustic images  

NASA Astrophysics Data System (ADS)

Observations acquired downhole are basically of two types : standard logs and borehole wall images, i.e. scalars versus depth and images versus depth. While many freeware programs can deal with standard logs, very few are able to treat simultaneously and interactively both scalars and images, including standard treatments commonly applied to such data. The developed matlab library offers such a possibility, in the form of a set of matlab routines based on command line operations that can be injected in matlab scripts for automatic data treatments and plotting procedures. An integrated analysis of downhole observations at first requires to correct the depths coming from various tools so that they all are the same. The provided library enables such corrections, and it in particular can interactively display the tendency defined by the plotted links, so as to detect and possibly remove the links that appear not to be coherent with the others. It also includes standard pre-treatments like interactive removal of absurd or wrong points, dephasing and non dephasing filters, derivations, integrations, decimations, resampling, amplitude calibrations, cross plots, etc. It besides enables to derive and display in 3D the borehole geometry from continuous monitorings of the magnetic field and the borehole tilt. Finally it includes more specific routines dedicated to the analysis of acoustic images. Among them are included the standard 3D, spiral and cross section plots, plus a new routine that enables to recenter the tool axis at the borehole axis before the images are generated. This very last routines appears to drastically improve the information delivered by the acoustic images where the tool is badly centered. The impact of all provided routines is illustrated with a data set coming from the Lavalette Experimental Center in France, an experimental site near the Montpellier university with two 100 m deep boreholes that is devoted to borehole geophysics research and teaching.

Pinettes, P.

2003-04-01

190

Information Literacy for Users at the National Medical Library of Cuba: Cochrane Library Course for the Search of Best Evidence for Clinical Decisions  

ERIC Educational Resources Information Center

The National Medical Library of Cuba is currently developing an information literacy program to train users in the use of biomedical databases. This paper describes the experience with the course "Cochrane Library: Evidence-Based Medicine," which aims to teach users how to make the best use of this database, as well as the evidence-based medicine…

Santana Arroyo, Sonia; del Carmen Gonzalez Rivero, Maria

2012-01-01

191

SearchSmallRNA: a graphical interface tool for the assemblage of viral genomes using small RNA libraries data  

PubMed Central

Background Next-generation parallel sequencing (NGS) allows the identification of viral pathogens by sequencing the small RNAs of infected hosts. Thus, viral genomes may be assembled from host immune response products without prior virus enrichment, amplification or purification. However, mapping of the vast information obtained presents a bioinformatics challenge. Methods In order to by pass the need of line command and basic bioinformatics knowledge, we develop a mapping software with a graphical interface to the assemblage of viral genomes from small RNA dataset obtained by NGS. SearchSmallRNA was developed in JAVA language version 7 using NetBeans IDE 7.1 software. The program also allows the analysis of the viral small interfering RNAs (vsRNAs) profile; providing an overview of the size distribution and other features of the vsRNAs produced in infected cells. Results The program performs comparisons between each read sequenced present in a library and a chosen reference genome. Reads showing Hamming distances smaller or equal to an allowed mismatched will be selected as positives and used to the assemblage of a long nucleotide genome sequence. In order to validate the software, distinct analysis using NGS dataset obtained from HIV and two plant viruses were used to reconstruct viral whole genomes. Conclusions SearchSmallRNA program was able to reconstructed viral genomes using NGS of small RNA dataset with high degree of reliability so it will be a valuable tool for viruses sequencing and discovery. It is accessible and free to all research communities and has the advantage to have an easy-to-use graphical interface. Availability and implementation SearchSmallRNA was written in Java and is freely available at http://www.microbiologia.ufrj.br/ssrna/.

2014-01-01

192

PMD2HD – A web tool aligning a PubMed search results page with the local German Cancer Research Centre library collection  

Microsoft Academic Search

BACKGROUND: Web-based searching is the accepted contemporary mode of retrieving relevant literature, and retrieving as many full text articles as possible is a typical prerequisite for research success. In most cases only a proportion of references will be directly accessible as digital reprints through displayed links. A large number of references, however, have to be verified in library catalogues and,

Andreas Bohne-Lang; Elke Lang; Anke Taube

2005-01-01

193

LSU Digital Library  

NSDL National Science Digital Library

Lousiana State University's Digital Library, in partnership with the Ogden Museum of Southern Art and the Louisiana State Museum, makes two image databases available: The Preservation of Louisiana's Treasures Program, about 200 images of Southern fine art, primarily 20th-century paintings and photographs from the Roger Houston Ogden collection; and the Rowles Stereograph Collection, 386 stereographs, "vintage albumen prints of New Orleans and Louisiana . . . from mid 1860s to the early 20th century." There are some surprisingly modern images in the stereograph collection, such as a 1978 Karem Abdul Jabbar slam dunk, and a 1930 stereograph portrait of Huey Long. The search interface for both databases is the same, allowing keyword searches or browsing by titles, creators, or subjects. In the browse mode, images are presented as pages of five thumbnails. This simple arrangement is missing some navigational tools; when browsing, there is no way to get back to the beginning without hitting the back button repeatedly; after search results are displayed, it is difficult to do a new search without going all the way back to the LSU Digital Library homepage.

194

Counterpoint Harmony Search: An accurate algorithm for the blind deconvolution of binary images  

Microsoft Academic Search

In this paper a novel algorithm, called Counterpoint Harmony Search (CHS), is presented for the simultaneous denoising and deconvolution of binary images. No prior information about the noise or blur shape and size is required, which makes so called blind decon-volution of binary images possible using CHS. CHS is based on the Harmony Search algorithm and inspired by the island

J. Fourie; R. Green; S. Mills

2010-01-01

195

The Role of Mental Models in a Multi-Modal Image Search.  

ERIC Educational Resources Information Center

Reports the preliminary findings of a research project that investigated users' mental models in the course of an image search. Generalist users searched a database of 1500 earth and space science images using a system that provided for both textual and content-based retrieval modalities. Factors such as ease of use and satisfaction with the…

Frost, C. Olivia

2001-01-01

196

Visual Search with Image Modification in Age-Related Macular Degeneration  

PubMed Central

Purpose. AMD results in loss of central vision and a dependence on low-resolution peripheral vision. While many image enhancement techniques have been proposed, there is a lack of quantitative comparison of the effectiveness of enhancement. We developed a natural visual search task that uses patients' eye movements as a quantitative and functional measure of the efficacy of image modification. Methods. Eye movements of 17 patients (mean age = 77 years) with AMD were recorded while they searched for target objects in natural images. Eight different image modification methods were implemented and included manipulations of local image or edge contrast, color, and crowding. In a subsequent task, patients ranked their preference of the image modifications. Results. Within individual participants, there was no significant difference in search duration or accuracy across eight different image manipulations. When data were collapsed across all image modifications, a multivariate model identified six significant predictors for normalized search duration including scotoma size and acuity, as well as interactions among scotoma size, age, acuity, and contrast (P < 0.05). Additionally, an analysis of image statistics showed no correlation with search performance across all image modifications. Rank ordering of enhancement methods based on participants' preference revealed a trend that participants preferred the least modified images (P < 0.05). Conclusions. There was no quantitative effect of image modification on search performance. A better understanding of low- and high-level components of visual search in natural scenes is necessary to improve future attempts at image enhancement for low vision patients. Different search tasks may require alternative image modifications to improve patient functioning and performance.

Wiecek, Emily; Jackson, Mary Lou; Dakin, Steven C.; Bex, Peter

2012-01-01

197

PIXTOOLS - 13 PROGRAMS AND A LIBRARY THAT OPERATE ON BITMAP IMAGE FILES  

NASA Technical Reports Server (NTRS)

PIXTOOLS is a package for the Silicon Graphics IRIS consisting of thirteen programs plus a library for operating on bitmap images. The image data structure is referred to as a PIXIMAGE. The programs allow the IRIS user to create and edit, perform screen saves, resize, and capture high-resolution images from the Sharp JX450 scanner. Images can be output to the QMS laser printer, the Tektronix 4693 color thermal printer, and the Matrix QCRZ film recorder. Additionally, PIX format images can be converted to SGI image format (and vice versa) or converted to PostScript format. PIX or SGI format images can be converted to ".ras" files which can be read by the "rasp" routine in the PLOT3D/AMES program (available from COSMIC), and ".ras" files can be converted to PIX files. Eleven of the programs print information and read and write files while two, PIXSCAN and PIXEDIT, offer graphical interfaces. PIXEDIT uses the full IRIS screen as a drawing area and pop-up menus are available. The menus allow manipulation of images and background color, and saving the screen to a file. PIXSCAN is the user interface to the Sharp JX450 scanner. This program allows the user to do a preliminary scan of an image at low resolution, and then select an area to rescan in higher resolution into a file. PIXSCAN requires the user to have the "gpib" (IEEE 488) board and "libgpib.a" library from Silicon Graphics, Inc. User instructions for all the programs are provided in the form of UNIX on-line manual pages. The PIXTOOLS programs are written in C-Language for execution on SGI IRIS 4D series workstations running IRIX 3.2 or later. PIXEDIT (the largest program) requires 840K of main memory. The programs with graphical interfaces require that the IRIS have at least 24 bit planes. The program package is available on a .25 inch streaming magnetic tape cartridge in UNIX tar format. A README file and UNIX man pages provide information regarding installation and use of the PIXTOOLS programs. A nine-page manual which provides slightly more detailed information may be purchased separately. PIXTOOLS was developed in 1990 and updated in 1991. SGI, IRIS 4D and IRIX are trademarks of Silicon Graphics, Inc. PostScript is a registered trademark of Adobe Systems Incorporated. UNIX is a registered trademark of AT&T.

Choi, D.

1994-01-01

198

SIMPLIcity: Semantics-Sensitive Integrated Matching for Picture LIbraries  

Microsoft Academic Search

The need for efficient content-based image retrieval has increased tremendously in many application areas such as biomedicine, military, commerce, education, and Web image classification and searching. We present here SIMPLIcity (Semantics- sensitive Integrated Matching for Picture LIbraries), an image retrieval system, which uses semantics classification methods, a wavelet-based approach for feature extraction, and integrated region matching based upon image segmentation.

James Ze Wang; Jia Li; Gio Wiederhold

2001-01-01

199

A geometry-based image search engine for advanced RADARSAT-1/2 GIS applications  

NASA Astrophysics Data System (ADS)

Space-borne Synthetic Aperture Radar (SAR) sensors, such as RADARSAT-1 and -2, enable a multitude of defense and security applications owing to their unique capabilities of cloud penetration, day/night imaging and multi-polarization imaging. As a result, advanced SAR image time series exploitation techniques such as Interferometric SAR (InSAR) and Radargrammetry are now routinely used in applications such as underground tunnel monitoring, infrastructure monitoring and DEM generation. Imaging geometry, as determined by the satellite orbit and imaged terrain, plays a critical role in the success of such techniques. This paper describes the architecture and the current status of development of a geometry-based search engine that allows the search and visualization of archived and future RADARSAT-1 and -2 images appropriate for a variety of advanced SAR techniques and applications. Key features of the search engine's scalable architecture include (a) Interactive GIS-based visualization of the search results; (b) A client-server architecture for online access that produces up-to-date searches of the archive images and that can, in future, be extended to acquisition planning; (c) A techniquespecific search mode, wherein an expert user explicitly sets search parameters to find appropriate images for advanced SAR techniques such as InSAR and Radargrammetry; (d) A future application-specific search mode, wherein all search parameters implicitly default to preset values according to the application of choice such as tunnel monitoring, DEM generation and deformation mapping; (f) Accurate baseline calculations for InSAR searches, and, optimum beam configuration for Radargrammetric searches; (g) Simulated quick look images and technique-specific sensitivity maps in the future.

Kotamraju, Vinay; Rabus, Bernhard; Busler, Jennifer

2012-05-01

200

Robust content-based image searches for copyright protection  

Microsoft Academic Search

This paper proposes a novel content-based image retrieval scheme for image copy identification. Its goal is to detect matches between a set of doubtful images and the ones stored in the database of the legal holders of the photographies. If an image was stolen and used to create a pirated copy, it tries to identify from which original image that

Sid-Ahmed Berrani; Laurent Amsaleg; Patrick Gros

2003-01-01

201

Start Your Search Engines. Part 2: When Image is Everything, Here are Some Great Ways to Find One  

ERIC Educational Resources Information Center

There is no doubt that Google is great for finding images. Simply head to its home page, click the "Images" link, enter criteria in the search box, and--voila! In this article, the authors share some of their other favorite search engines for finding images. To make sure the desired images are available for educational use, consider searching for…

Adam, Anna; Mowers, Helen

2008-01-01

202

SimITK: visual programming of the ITK image-processing library within Simulink.  

PubMed

The Insight Segmentation and Registration Toolkit (ITK) is a software library used for image analysis, visualization, and image-guided surgery applications. ITK is a collection of C++ classes that poses the challenge of a steep learning curve should the user not have appropriate C++ programming experience. To remove the programming complexities and facilitate rapid prototyping, an implementation of ITK within a higher-level visual programming environment is presented: SimITK. ITK functionalities are automatically wrapped into "blocks" within Simulink, the visual programming environment of MATLAB, where these blocks can be connected to form workflows: visual schematics that closely represent the structure of a C++ program. The heavily templated C++ nature of ITK does not facilitate direct interaction between Simulink and ITK; an intermediary is required to convert respective data types and allow intercommunication. As such, a SimITK "Virtual Block" has been developed that serves as a wrapper around an ITK class which is capable of resolving the ITK data types to native Simulink data types. Part of the challenge surrounding this implementation involves automatically capturing and storing the pertinent class information that need to be refined from an initial state prior to being reflected within the final block representation. The primary result from the SimITK wrapping procedure is multiple Simulink block libraries. From these libraries, blocks are selected and interconnected to demonstrate two examples: a 3D segmentation workflow and a 3D multimodal registration workflow. Compared to their pure-code equivalents, the workflows highlight ITK usability through an alternative visual interpretation of the code that abstracts away potentially confusing technicalities. PMID:24402456

Dickinson, Andrew W L; Abolmaesumi, Purang; Gobbi, David G; Mousavi, Parvin

2014-04-01

203

Enhancement of discontinuities in seismic 3-D images using a Java estimation library  

NASA Astrophysics Data System (ADS)

Seismic images are difficult to interpret. The nature of the seismic experiment and the ever present sedimentary layering of the subsurface result in oscillatory and complex 3-D seismic images In principle, computer programs can enhance geologically significant image features, such as faults, erosional surfaces, and salt boundaries. Standard edge enhancement, however, fails to compute useful seismic discontinuity maps. The correlation between an image region and its best-fitting local plane wave generates clear and discriminating maps for a wide range of images. A third approach, prediction-error filtering, yields detailed fault maps for images with sharp faults. For images with rather smooth fault zones, prediction error unfortunately fails. This dissertation's discontinuity computations are the first comprehensive application of a new innovative Java estimation library: Jest (Java for estimation). Jest comprises a general and extendible library for numerical optimization for science and engineering, Jam (Java and mathematics), and a particular extension of that framework for seismic image processing, Jag (Java and geophysics). Jest successfully separates optimization and application software. To ensure the compatibility of solver and application, Jest is built around a set of simple interfaces that define method invocations for the fundamental mathematical objects of numerical optimization, such as vectors, vector spaces, operators, and solvers. Jest's solvers are implemented in terms of these mathematical objects and, consequently, possess the generality of the original abstract mathematical algorithm. Finally, the dissertation is a reproducible electronic document, a simple software filing system that organizes, preserves, and potentially transfers the technology of any computational scientific research project. The document's central makefile offers readers four standard commands: burn removes the document's result figures, build recomputes them, view displays the figures, and clean removes any intermediate files. of these commands. Although we developed these standards to aid readers we discovered that authors are often the principal beneficiaries. In combination with the World Wide Web's ability to distribute software,. standardized reproducibility of computational research offers unprecedented opportunities for collaboration and learning. In particular, the combination of Java software (such as Jest) and the concept of reproducible documents, potentially enables any reader to reproduce a scientist's results at the push of a button in a World Wide Web browser.

Schwab, Matthias

204

Qualitative Confirmation of 9 Synthetic Cannabinoids and 20 Metabolites in Human Urine Using LC-MS/MS and Library Search  

PubMed Central

Introduction Synthetic cannabinoids are an emerging illicit drug class. The variety of available substances is large and ever-changing, making it difficult for laboratories to remain current. We present a qualitative LC–MS/MS method identifying urinary metabolites of JWH-018, JWH-073, JWH-081, JWH-122, JWH-200, JWH-210, JWH-250, RCS-4, and AM2201 and the parent compounds JWH-018, JWH-073, JWH-081, JWH-122, JWH-210, JWH-250, RCS-4, AM2201, and MAM2201. Methods After enzymatic hydrolysis, urinary proteins were precipitated with acetonitrile. Chromatography utilized a 10 min gradient on a Kinetex XB-C18 column with 0.1% formic acid in water and acetonitrile. Scheduled multiple reaction monitoring “survey scans” were followed by information-dependent acquisition-enhanced product ion scan experiments on an ABSciex 5500 QTRAP mass spectrometer. Analytes were identified by software-assisted library searching against reference spectra. Results The method was fully validated, including proof of selectivity (no exogenous or endogenous interferences were observed), assessment of matrix effects (95–122%) and recovery (53–95%), determination of limits of detection (0.5–10 ng/mL), carry-over studies (thresholds between 100 and 1000 ng/mL), and determination of autosampler stability (samples were stable for at least 3 days). Hydrolysis efficiency was thoroughly investigated for a wide range of glucuronides and for the reference standard, JWH-018 5-hydroxypentyl glucuronide

Wohlfarth, Ariane; Scheidweiler, Karl B.; Chen, Xiaohong; Liu, Hua-fen; Huestis, Marilyn A.

2013-01-01

205

Adaptive image segmentation using genetic and hybrid search methods  

Microsoft Academic Search

This paper describes an adaptive approach for the important image processing problem of image segmentation that relies on learning from experience to adapt and improve the segmentation performance. The adaptive image segmentation system incorporates a feedback loop consisting of a machine learning subsystem, an image segmentation algorithm, and an evaluation component which determines segmentation quality. The machine learning component is

BIR BHANU; Sungkee Lee; SUBHODEV DAS

1995-01-01

206

Clustering and searching WWW images using link and page layout analysis  

Microsoft Academic Search

Due to the rapid growth of the number of digital images on the Web, there is an increasing demand for effective and efficient method for organizing and retrieving the images available. This paper describes iFind, a system for cluster- ing and searching WWW images. By using a vision-based page segmentation algorithm, a web page is partitioned into blocks, and the

Xiaofei He; Deng Cai; Ji-rong Wen; Wei-ying Ma; Hong-jiang Zhang

2007-01-01

207

SIOExplorer Digital Library Project  

NSDL National Science Digital Library

This digital library provides access to data, documents and images from 822 expeditions by the Scripps Institution of Oceanography (SIO), dating back to 1903. Materials include shipboard data from cruises (sampling information, seismic profiles, meteorology, and others); expedition photographs; bathymetric seamount maps; and educational resources from the Enduring Resources for Earth Sciences Education (ERESE) program. Since 2001 the collection has matured to include five federated collections: SIO Cruises, SIO Historic Photographs, the Seamounts, Marine Geological Samples, and the Educatorâs Collection, all part of the US National Science Digital Library (NSDL). The collection is searchable by two interfaces; a text based search which allows you to access data and metadata. You can search using controlled vocabularies and view the results in google earth; and the other, accessible through an interactive map interface.

Staudigel, Hubert

208

Incremental indexing and distributed image search using shared randomized vocabularies  

Microsoft Academic Search

We present a cooperative framework for content-based image retrieval for the realistic setting where images are distributed across multiple cooperating servers. The proposed method is in line with bag-of-features approaches but uses fully data-independent, randomized structures, shared by the cooperating servers, to map image features to common visual words. A coherent, global image similarity measure (which is a kernel) is

Raphaël Marée; Philippe Denis; Louis Wehenkel; Pierre Geurts

2010-01-01

209

User and system considerations for the TCSTEK software library: a graphics library for displaying images on Tektronix 4000 series storage tube terminals  

SciTech Connect

This report documents the idiosyncrasies of the Tektronix PLOT 10 Terminal Control System (TCS) level 3.3 software as it currently exists on the Oak Ridge National Laboratory Fusion Energy Division DECsystem-10 computer. It pertains to the graphics software library called TCSTEK, which may be used to convert TCS subroutine calls into display images on the screens of Tektronix 4000 series storage tube terminals. Fully described here are several user-oriented enhancements and system efficiency modifications to the vendor-supplied TCS software library. It is intended that this report serve as a reference for future TCS updates so that continuity between releases of TCS PLOT 10 software may be maintained. 1 figure.

Gray, W.H.

1980-11-01

210

PMD2HD - A web tool aligning a PubMed search results page with the local German Cancer Research Centre library collection  

PubMed Central

Background Web-based searching is the accepted contemporary mode of retrieving relevant literature, and retrieving as many full text articles as possible is a typical prerequisite for research success. In most cases only a proportion of references will be directly accessible as digital reprints through displayed links. A large number of references, however, have to be verified in library catalogues and, depending on their availability, are accessible as print holdings or by interlibrary loan request. Methods The problem of verifying local print holdings from an initial retrieval set of citations can be solved using Z39.50, an ANSI protocol for interactively querying library information systems. Numerous systems include Z39.50 interfaces and therefore can process Z39.50 interactive requests. However, the programmed query interaction command structure is non-intuitive and inaccessible to the average biomedical researcher. For the typical user, it is necessary to implement the protocol within a tool that hides and handles Z39.50 syntax, presenting a comfortable user interface. Results PMD2HD is a web tool implementing Z39.50 to provide an appropriately functional and usable interface to integrate into the typical workflow that follows an initial PubMed literature search, providing users with an immediate asset to assist in the most tedious step in literature retrieval, checking for subscription holdings against a local online catalogue. Conclusion PMD2HD can facilitate literature access considerably with respect to the time and cost of manual comparisons of search results with local catalogue holdings. The example presented in this article is related to the library system and collections of the German Cancer Research Centre. However, the PMD2HD software architecture and use of common Z39.50 protocol commands allow for transfer to a broad range of scientific libraries using Z39.50-compatible library information systems.

Bohne-Lang, Andreas; Lang, Elke; Taube, Anke

2005-01-01

211

Combined use of ESI–QqTOF-MS and ESI–QqTOF-MS\\/MS with mass-spectral library search for qualitative analysis of drugs  

Microsoft Academic Search

The potential of the combined use of ESI–QqTOF-MS and ESI–QqTOF-MS\\/MS with mass-spectral library search for the identification\\u000a of therapeutic and illicit drugs has been evaluated. Reserpine was used for standardizing experimental conditions and for\\u000a characterization of the performance of the applied mass spectrometric system. Experiments revealed that because of the mass\\u000a accuracy, the stability of calibration, and the reproducibility of

Marion Pavlic; Kathrin Libiseller; Herbert Oberacher

2006-01-01

212

Library of Virginia: Tazewell County Public Library Photographs  

NSDL National Science Digital Library

The Library of Virginia (LVA) (last discussed in the June 18, 1999 Scout Report) has made an addition to their digital collections. This addition is a collection of nearly 3,900 photos from Tazewell County, VA, dating from 1851 to the early 1990s. The photos cover a wide range of subjects and activities. Users may search by keyword, title, subject, type of photo, or photo number. Combination and Boolean searches are also available. Search returns include thumbnailed images with links to larger versions and catalog cards.

1999-01-01

213

WebSeer: An Image Search Engine for the World Wide Web1  

Microsoft Academic Search

Because of the size of the World Wide Web and its inherent lack of structure, finding what one is looking for can be a challenge. PC-Meter's March, 1996, survey found that three of the five most visited Web sites were search engines. However, while Web pages typically contain both text and images, all the currently available search engines only index

Charles Frankel; Michael J. Swain; Vassilis Athitsos

1996-01-01

214

Theobiography: searching for divine images in our personal stories  

Microsoft Academic Search

Theobiography is a process for discovering and articulating the divine images that are functional and embedded in our theology of life through reflection on our past, for the purpose of acknowledging a more complete personal theology of God. As mediators of church doctrine, clergy must remain committed to self-reflection. Theobiography is a resource for self-reflection that examines the various images

Betty J. Bradford

2006-01-01

215

Cognitive issues in searching images with visual queries  

NASA Astrophysics Data System (ADS)

In this paper, we propose our image indexing technique and visual query processing technique. Our mental images are different from the actual retinal images and many things, such as personal interests, personal experiences, perceptual context, the characteristics of spatial objects, and so on, affect our spatial perception. These private differences are propagated into our mental images and so our visual queries become different from the real images that we want to find. This is a hard problem and few people have tried to work on it. In this paper, we survey the human mental imagery system, the human spatial perception, and discuss several kinds of visual queries. Also, we propose our own approach to visual query interpretation and processing.

Yu, ByungGu; Evens, Martha W.

1999-01-01

216

Models of hostplant location by butterflies: the effect of search images and search efficiency  

Microsoft Academic Search

An earlier model of hostplant exploitation by insects (Courtney 1982b) fails to take account of differences between strategists in search efficiencies. Modifications which accommodate such differences are presented which increase the explanatory power of the model. Some novel deductions for insect-host coevolution arise. Hostplants may be under selection for chemical crypsis when the insect identifies the host by a positive

S. P. Courtney

1983-01-01

217

Using Gravitational Imaging to Search for Substructure in Distant Galaxies  

NASA Astrophysics Data System (ADS)

In this talk I will show how the powerful combination of gravitational lensing and sensitive, high-resolution imaging can provide direct observational tests of galaxy formation scenarios under the cold dark matter paradigm. In particular, I will discuss how we can use the technique of "gravitational imaging" to place observational constraints on the subhalo mass function. With this method we are, for the first time, directly measuring masses of galaxy satellites well outside of the Local Group. These measurements can be made even if the satellites are composed purely of dark matter, and provide an excellent complement to information obtained from investigations of Milky Way satellite galaxies. The imaging used for the project that I will discuss comes from Keck adaptive optics (AO) and Hubble Space Telescope (HST) observations. In some cases the AO imaging is clearly sharper than that obtained with HST.

Fassnacht, Christopher D.

2013-07-01

218

WebSeer: A n Image Search Engine for the World Wide Web  

Microsoft Academic Search

Because of the size of the World Wide Web and its inherentlack of structure, finding what one is looking for can bea challenge. In fact, some of the most highly visited Websites are search engines. However, while Web pages typicallycontain both text and images, most currently availablesearch engines only index text. This paper describesWebSeer, a system for locating images on

J. Swain

1997-01-01

219

Fast Nearest Neighbor Search in Medical Image Databases  

Microsoft Academic Search

We examine the problem of finding similar tu- mor shapes. Starting from a natural ,similar- ity function (the so-called 'max morphological distance'), we show how to lower-bound it and how to search for nearest neighbors in large collections of tumor-like shapes. Specifically, we use, .:!tate-of-the-art concepts from morphology, n;,mely the 'pattern spec- trum' of a shape, to map each shape

Flip Korn; Nikolaos Sidiropoulos; Christos Faloutsos; Eliot Siegel; Zenon Protopapas

1996-01-01

220

VLBI Phase Reference Mapping Techniques and the Search for the Third Image of 0957+561  

NASA Astrophysics Data System (ADS)

This paper reviews the technique of using a phase reference in VLBI to extend the coherence and to provide accurate differential astrometry and describes the search for the third image of 0957+561. The search detected a compact component that was initially seen at 2.3 GHz and reported by Gorenstein et al. (1983. Later this compact source was also observed at 8.4 GHz and 5 GHz. Whether this source is the long sought third image or the core of the lensing galaxy has been an open question for several years. The interferometer phases on the most sensitive VLBI baseline suggest that we have observed the third image.

Rogers, Alan E. E.

221

VLBI phase reference mapping techniques and the search for the third image of 0957+561.  

NASA Astrophysics Data System (ADS)

This paper reviews the technique of the using a phase reference in VLBI to extend the coherence and to provide accurate differential astrometry and describes the search for the third image of 0957+561. The search detected a compact component that was initially seen at 2.3 GHz and reported by Gorenstein et al. (1983). Later this compact source was also observed at 8.4 GHz and 5 GHz. Whether this source is the long sought third image or the core of the lensing galaxy has been an open question for several years. The interferometer phases on the most sensitive VLBI baseline suggest that the third image has been observed.

Rogers, A. E. E.

222

A Fieldable-Prototype Large-Area Gamma-ray Imager for Orphan Source Search  

SciTech Connect

We have constructed a unique instrument for use in the search for orphan sources. The system uses gamma-ray imaging to "see through" the natural background variations that effectively limit the search range of normal devices to ~10 m. The imager is mounted in a 4.9- m-long trailer and can be towed by a large personal vehicle. Source locations are determined both in range and along the direction of travel as the vehicle moves. A fully inertial platform coupled to a Global Positioning System receiver is used to map the gamma-ray images onto overhead geospatial imagery. The resulting images provide precise source locations, allowing rapid follow-up work. The instrument simultaneously searches both sides of the street to a distance of 50 m (100-m swath) for milliCurieclass sources with near-perfect performance.

Ziock, Klaus-Peter [ORNL; Fabris, Lorenzo [ORNL; Carr, Dennis [Lawrence Livermore National Laboratory (LLNL); Collins, Jeff [Lawrence Livermore National Laboratory (LLNL); Cunningham, Mark F [Lawrence Livermore National Laboratory (LLNL); Habte Ghebretatios, Frezghi [ORNL; Karnowski, Thomas Paul [ORNL; Marchant, William [University of California, Berkeley

2008-01-01

223

Intelligent technique to search for patterns within images in massive databases  

SciTech Connect

An image retrieval system for JET has been developed. The image database contains the images of the JET high speed visible camera. The system input is a pattern selected inside an image and the output is the group of frames (defined by their discharge numbers and time slices) that show patterns similar to the selected one. This approach is based on morphological pattern recognition and it should be emphasized that the pattern is found independently of its location in the frame. The technique encodes images into characters and, therefore, it transforms the pattern search into a character-matching problem.

Vega, J.; Murari, A.; Pereira, A.; Portas, A.; Castro, P. [JET-EFDA, Culham Science Center, OX14 3DB Abingdon (United Kingdom)

2008-10-15

224

Searching scale space for activation in PET images  

Microsoft Academic Search

} Abstract: PET images of cerebral blood ?ow (CBF) in an activation study are usually smoothed to a resolution much poorer than the intrinsic resolution of the PET camera. This is done to reduce noise and to overcome problems caused by neuroanatomic variability among difierent subjects undertaking the same experimental task. In many studies the choice of this smoothing is

K. J. Worsley; S. Marrett; P. Neelin; A. C. Evans

1996-01-01

225

Multi-scale saliency search in image analysis.  

SciTech Connect

Saliency detection in images is an important outstanding problem both in machine vision design and the understanding of human vision mechanisms. Recently, seminal work by Itti and Koch resulted in an effective saliency-detection algorithm. We reproduce the original algorithm in a software application Vision and explore its limitations. We propose extensions to the algorithm that promise to improve performance in the case of difficult-to-detect objects.

Slepoy, Alexander; Campisi, Anthony; Backer, Alejandro

2005-10-01

226

Automated analysis of images in documents for intelligent document search  

Microsoft Academic Search

Authors use images to present a wide variety of important information in documents. For example, two-dimensional (2-D) plots\\u000a display important data in scientific publications. Often, end-users seek to extract this data and convert it into a machine-processible\\u000a form so that the data can be analyzed automatically or compared with other existing data. Existing document data extraction\\u000a tools are semi-automatic and

Xiaonan Lu; Saurabh Kataria; William J. Brouwer; James Ze Wang; Prasenjit Mitra; C. Lee Giles

2009-01-01

227

Orbital Imaging Radar and the Search for Water on Mars  

NASA Technical Reports Server (NTRS)

The surface of Mars has been modified by a range of geologic processes, and many regions are mantled by varying depths of wind-blown dust, volcanic ash, and fluvially deposited or other water-lain sediments. We are proposing an orbital mission carrying a synthetic aperture radar (SAR) that can penetrate a significant depth of overlying material to reveal the detailed geomorphology as it relates to the changing fluvial, eolian, volcanic, and cratering history of Mars. Moreover, the data to be returned are of direct relevance to the search for past and present occurrences of liquid water, life, changing martian climate, and geologic history (e.g., origin of the northern plains, mechanisms for past and possible present valley formation, and genesis of widespread mantling deposits), the validation of potential landing sites for rover safety, and evaluation of sub-surface accessibility for drilling.

Campbell, B. A.; Campbell, D. B.; Grant, J. A.; Hensley, S.; Maxwell, T. A.; Plaut, J. J.; Rosen, P.; Shepard, M. K.; Simpson, R.

2001-01-01

228

The effect of learning and search images on predator–prey interactions  

Microsoft Academic Search

In dealing with the spatial and temporal variability of prey species, predators may be able to forage optimally if they have\\u000a flexible and rapid behavioral plasticity rather than predetermined responses. For predators that learn to focus attention\\u000a on the cryptic prey type most frequently encountered during recent searching (termed a “search image”), rare prey types may\\u000a be overlooked because of

Yumiko Ishii; Masakazu Shimada

2010-01-01

229

Library Literature: Redesigning Library Services: A Manifesto  

NSDL National Science Digital Library

The Berkeley Digital Library SunSITE (discussed in the February 9, 1996 Scout Report) has added the first in what will be a series of library literature, Michael Buckland's Redesigning Library Services: A Manifesto. Buckland argues against what he sees as library literature's over-emphasis on technology for technology's sake, "on means, rather than on ends, and tactics rather than strategy." Though electronic library management has certainly changed and grown since Redesigning Library Services was first published (1992), the book's primary emphasis on the goals and purposes of library services still serves as a relevant touchstone. Buckland's book is meant to countervail against the fact that "there is so much more written, for example, on how to build collections than on the roles that collections play." The text can be read online, downloaded (.pdf), or searched for keywords (Note that searches return only links to chapters, not passages of text).

Buckland, Michael K.

1998-01-01

230

Optimized multilevel codebook searching algorithm for vector quantization in image coding  

NASA Astrophysics Data System (ADS)

An optimized multi-level codebook searching algorithm (MCS) for vector quantization is presented in this paper. Although it belongs to the category of the fast nearest neighbor searching (FNNS) algorithms for vector quantization, the MCS algorithm is not a variation of any existing FNNS algorithms (such as k-d tree searching algorithm, partial-distance searching algorithm, triangle inequality searching algorithm...). A multi-level search theory has been introduced. The problem for the implementation of this theory has been solved by a specially defined irregular tree structure which can be built from a training set. This irregular tree structure is different from any tree structures used in TSVQ, prune tree VQ, quad tree VQ... Strictly speaking, it cannot be called tree structure since it allows one node has more than one set of parents, it is only a directed graph. This is the essential difference between MCS algorithm and other TSVQ algorithms which ensures its better performance. An efficient design procedure has been given to find the optimized irregular tree for practical source. The simulation results of applying MCS algorithm to image VQ show that this algorithm can reduce searching complexity to less than 3% of the exhaustive search vector quantization (ESVQ) (4096 codevectors and 16 dimension) while introducing negligible error (0.064 dB degradation from ESVQ). Simulation results also show that the searching complexity is close linearly increase with bitrate.

Cao, Hugh Q.; Li, Weiping

1996-02-01

231

Getting the Picture: Observations from the Library of Congress on Providing Online Access to Pictorial Images  

Microsoft Academic Search

OVER THE LAST FEW YEARS, THE LIBRARY (LC) has increas- OF CONGRESS ingly created digital reproductions of visual materials to enhance access to its resources. Digitization is now a mainstream activity in the Prints and Photographs Division (P & P) and the Geography and Maps Division (G & M) . Both divisions work closelywith the National Digital Library Program to

CAROLINE R. ARMS

232

Digital Libraries: An Overview.  

ERIC Educational Resources Information Center

Provides an overview of the basic components of a digital library. Highlights include library collections; metadata; services, including information seeking and retrieval, reference query fulfillment, and user training; user interaction with digital libraries, including searching, browsing, and navigation; economic support; maintenance;…

Schwartz, Candy

2000-01-01

233

Search for Heliospheric Energetic Neutral Atoms Using IMAGE/HENA  

NASA Astrophysics Data System (ADS)

The HENA instrument on the IMAGE spacecraft measures energetic neutral atoms (ENAs) using time-of-flight over the energy range 10-200 keV/nuc. Whenever there are neither magnetospheric ENAs nor energetic ions in sufficient numbers to penetrate the electrostatic deflection system, HENA will respond to ENAs from the heliosphere. These may either be ENAs produced within the solar wind by shock-accelerated ions that charge exchange with interstellar H-atoms [Roelof, 1992], or ENA H-atoms produced by protons accelerated in the vicinity of the heliospheric termination shock and transported beyond it into the sub-sonic heliosheath [Gruntman et al., 2001]. During ~2 hr of every appropriate apogee pass of IMAGE, we select a region of the anti-Earthward sky approximately 60° x60° and accumulate counts in 6° x6° instrument pixels and in ~5 energy channels. The energy spectrum and angular distribution accumulated during each apogee pass (usually containing >30 counts) are both examined for possible contamination. Acceptable counts are mapped into absolute intensities (cm2 sr s keV)-1 over the celestial sphere using the calibrated response function of the instrument. This allows counts from separate apogee passes to be properly concatenated. Any resulting intensity then gives an upper bound on ENAs from either within the heliosphere or from the termination shock. The portion of the celestial sphere covered so far is predominantly in the northern hemisphere. Preliminary results give an upper bound on the spectrum in the range 16-60 keV that is below the ENA intensity recently predicted for pickup protons accelerated at a strong heliospheric termination shock [Fahr and Lay, 2000]. However, this upper bound is well above the intensity we calculate for ENAs that would be produced by the recently reported ubiquitous high energy tails on long-term-averaged energetic ion spectra measured on the ACE spacecraft [Mewaldt et al., 2001].

Roelof, E. C.; Brandt, P. C.; Mitchell, D. G.; Demajistre, R.

2002-05-01

234

Direct Imaging Search for Extrasolar Planets in the Pleiades  

NASA Astrophysics Data System (ADS)

We carried out an imaging survey for extrasolar planets around stars in the Pleiades (125 Myr, 135 pc) in the H and KS bands using HiCIAO combined with adaptive optics, AO188, on the Subaru telescope. We found 13 companion candidates fainter than 14.5 mag in the H band around 9 stars. Five of these 13 were confirmed to be background stars by measurement of their proper motion. One was not found in the second epoch observation, and thus was not a background or companion object. One had multi-epoch images, but the precision of its proper motion was not sufficient to conclude whether it was a background object. Four other candidates are waiting for second-epoch observations to determine their proper motion. Finally, the remaining two were confirmed to be 60 MJ brown dwarf companions orbiting around HD 23514 (G0) and HII 1348 (K5), respectively, as had been reported in previous studies. In our observations, the average detection limit for a point source was 20.3 mag in the H band beyond 1.5' from the central star. On the basis of this detection limit, we calculated the detection efficiency to be 90% for a planet with 6 to 12 Jovian masses and a semi-major axis of 50-1000 AU. For this reason we extrapolated the distribution of the planet mass and the semi-major axis derived from radial velocity observations, and adopted the planet evolution model Baraffe et al. (2003, A&A, 402, 701). Since there was no detection of a planet, we estimated the frequency of such planets to be less than 17.9% (2 ? ) around one star of the Pleiades cluster.

Yamamoto, Kodai; Matsuo, Taro; Shibai, Hiroshi; Itoh, Yoichi; Konishi, Mihoko; Sudo, Jun; Tanii, Ryoko; Fukagawa, Misato; Sumi, Takahiro; Kudo, Tomoyuki; Hashimoto, Jun; Kusakabe, Nobuhiko; Abe, Lyu; Brandner, Wolfgang; Brandt, Timothy D.; Carson, Joseph; Currie, Thayne; Egner, Sebastian E.; Feldt, Markus; Goto, Miwa; Grady, Carol; Guyon, Olivier; Hayano, Yutaka; Hayashi, Masahiko; Hayashi, Saeko; Henning, Thomas; Hodapp, Klaus; Ishii, Miki; Iye, Masanori; Janson, Markus; Kandori, Ryo; Knapp, Gillian R.; Kuzuhara, Masayuki; Kwon, Jungmi; McElwain, Mike; Miyama, Shoken; Morino, Jun-Ichi; Moro-Martin, Amaya; Nishikawa, June; Nishimura, Tetsuo; Pyo, Tae-Soo; Serabyn, Eugene; Suto, Hiroshi; Suzuki, Ryuji; Takami, Michihiro; Takato, Naruhisa; Terada, Hiroshi; Thalmann, Christian; Tomono, Daigo; Turner, Edwin L.; Wisniewski, John; Watanabe, Makoto; Yamada, Toru; Takami, Hideki; Usuda, Tomonori

2013-08-01

235

An iterative framework for EEG-based image search: robust retrieval with weak classifiers.  

PubMed

We revisit the framework for brain-coupled image search, where the Electroencephalography (EEG) channel under rapid serial visual presentation protocol is used to detect user preferences. Extending previous works on the synergy between content-based image labeling and EEG-based brain-computer interface (BCI), we propose a different perspective on iterative coupling. Previously, the iterations were used to improve the set of EEG-based image labels before propagating them to the unseen images for the final retrieval. In our approach we accumulate the evidence of the true labels for each image in the database through iterations. This is done by propagating the EEG-based labels of the presented images at each iteration to the rest of images in the database. Our results demonstrate a continuous improvement of the labeling performance across iterations despite the moderate EEG-based labeling (AUC <75%). The overall analysis is done in terms of the single-trial EEG decoding performance and the image database reorganization quality. Furthermore, we discuss the EEG-based labeling performance with respect to a search task given the same image database. PMID:23977196

Uš?umli?, Marija; Chavarriaga, Ricardo; Millán, José Del R

2013-01-01

236

Research Libraries Catalog  

NSDL National Science Digital Library

The library catalog of the Research Libraries of the New York Public Library (CATNYP) is available for searching via telnet. The catalog includes materials added to the collection since 1971, as well as some materials acquired before 1971. The Research Libraries include four centers: the Center for the Humanities, the New York Public Library for the Performing Arts (LPA), the Schomburg Center for Research in Black Culture, and the Science and Industry Business Library (SIBL). The collections of these libraries contain 38.8 million items, including 11.8 million books. Note, however, that the Research Libraries' collections are for onsite use. telnet://nyplgate.nypl.org/ login: nypl The Research Libraries' catalog is menu pick "2". Telnet to nyplgate.nypl.org and login: nypl For information about the individual Research Libraries: http://www.nypl.org/research/research.html

237

Facility Focus: Libraries.  

ERIC Educational Resources Information Center

Describes the unique design qualities, found in some college libraries, that help create individuality. Examines library designs that complement school's traditional images and facilitate learning while providing optimum user satisfaction. (GR)

College Planning & Management, 1999

1999-01-01

238

Modified gradient search for level set based image segmentation.  

PubMed

Level set methods are a popular way to solve the image segmentation problem. The solution contour is found by solving an optimization problem where a cost functional is minimized. Gradient descent methods are often used to solve this optimization problem since they are very easy to implement and applicable to general nonconvex functionals. They are, however, sensitive to local minima and often display slow convergence. Traditionally, cost functionals have been modified to avoid these problems. In this paper, we instead propose using two modified gradient descent methods, one using a momentum term and one based on resilient propagation. These methods are commonly used in the machine learning community. In a series of 2-D/3-D-experiments using real and synthetic data with ground truth, the modifications are shown to reduce the sensitivity for local optima and to increase the convergence rate. The parameter sensitivity is also investigated. The proposed methods are very simple modifications of the basic method, and are directly compatible with any type of level set implementation. Downloadable reference code with examples is available online. PMID:23014748

Andersson, Thord; Läthén, Gunnar; Lenz, Reiner; Borga, Magnus

2013-02-01

239

Photo Library of the Nevada Site Office (Includes historical archive of nuclear testing images)  

DOE Data Explorer

The Nevada Site Office makes available publicly released photos from their archive that includes photos from both current programs and historical activities. The historical collections include atmospheric and underground nuclear testing photos and photos of other events and people related to the Nevada Test Site. Current collections are focused on homeland security, stockpile stewardship, and environmental management and restoration. See also the Historical Film Library at http://www.nv.doe.gov/library/films/testfilms.aspx and the Current Film Library at http://www.nv.doe.gov/library/films/current.aspx. Current films can be viewed online, but only short clips of the historical films are viewable. They can be ordered via an online request form for a very small shipping and handling fee.

240

Virtual screening of combinatorial libraries across a gene family: in search of inhibitors of Giardia lamblia guanine phosphoribosyltransferase.  

PubMed

Parasitic protozoa lack the ability to synthesize purine nucleotides de novo, relying instead on purine salvage enzymes for their survival. Guanine phosphoribosyltransferase (GPRT) from the protozoan parasite Giardia lamblia is a potential target for rational antiparasitic drug design, based on the experimental evidence, which indicates the lack of interconversion between adenine and guanine nucleotide pools. The present study is a continuation of our efforts to use three-dimensional structures of parasitic phosphoribosyltransferases (PRTs) to design novel antiparasitic agents. Two micromolar phthalimide-based GPRT inhibitors were identified by screening the in-house phthalimide library. A combination of structure-based scaffold selection using virtual library screening across the PRT gene family and solid phase library synthesis led to identification of smaller (molecular weight, <300) ligands with moderate to low specificity for GPRT; the best inhibitors, GP3 and GP5, had K(i) values in the 23 to 25 microM range. These results represent significant progress toward the goal of designing potent inhibitors of purine salvage in Giardia parasites. As a second step in this process, altering the phthalimide moiety to optimize interactions in the guanine-binding pocket of GPRT is expected to lead to compounds with promising activity against G. lamblia PRT. PMID:11502531

Aronov, A M; Munagala, N R; Kuntz, I D; Wang, C C

2001-09-01

241

Efficient search and verification for function based classification from real range images  

Microsoft Academic Search

In this work we propose a probabilistic model for generic object classification from raw range images. Our approach supports a val- idation process in which classes are verified using a functional class graph in which functional parts and their realization hypotheses are explored. The validation tree is efficiently searched. Some functional requirements are validated in a final procedure for more

Guy Froimovich; Ehud Rivlin; Ilan Shimshoni; Octavian Soldea

2007-01-01

242

Informedia Digital Video Library  

Microsoft Academic Search

The Informedia Digital Video Library Project is developing new technologies for creating full-content search and retrieval digital video libraries. Working in collaboration with WQED Pittsburgh, the project is creating a testbed that will enable K-12 students to access, explore, and retrieve science and mathematics materials from the digital video library. The library will initially contain 1,000 hours of video from

Michael G. Christel; Takeo Kanade; M. Mauldin; Raj Reddy; Marvin A. Sirbu; Scott M. Stevens; Howard D. Wactlar

1995-01-01

243

Large Spectral Library Problem.  

National Technical Information Service (NTIS)

Hyperspectral imaging produces a spectrum or vector at each image pixel. These spectra can be used to identify materials present in the image. In some cases, spectral libraries representing atmospheric chemicals or ground materials are available. The chal...

L. K. Chilton S. J. Walsh

2008-01-01

244

Visual Keyword Image Retrieval Based on Synergetic Neural Network for Web-Based Image Search  

Microsoft Academic Search

Feature extraction and similarity measure are two basickey issues in image retrieval. Combining the advantages of SNNin image recognition and selective attention for image retrieval,a novel visual keywords-driven image retrieval approach basedon these properties has been proposed. By using a predefinedset of visual keywords as prototype patterns stored with theSNN and then measuring the degree of similiarity of the storedimages

Tong Zhao; Lilian H. Tang; Horace H. S. Ip; Feihu Qi

2001-01-01

245

MapReduce Implementation of a Hybrid Spectral Library-Database Search Method for Large-Scale Peptide Identification  

SciTech Connect

A MapReduce-based implementation called MR- MSPolygraph for parallelizing peptide identification from mass spectrometry data is presented. The underlying serial method, MSPolygraph, uses a novel hybrid approach to match an experimental spectrum against a combination of a protein sequence database and a spectral library. Our MapReduce implementation can run on any Hadoop cluster environment. Experimental results demonstrate that, relative to the serial version, MR-MSPolygraph reduces the time to solution from weeks to hours, for processing tens of thousands of experimental spectra. Speedup and other related performance studies are also reported on a 400-core Hadoop cluster using spectral datasets from environmental microbial communities as inputs.

Kalyanaraman, Anantharaman; Cannon, William R.; Latt, Benjamin K.; Baxter, Douglas J.

2011-11-01

246

Development of a Navigator and Imaging Techniques for the Cryogenic Dark Matter Search Detectors  

SciTech Connect

This project contributes to the detection of flaws in the germanium detectors for the Cryogenic Dark Matter Search (CDMS) experiment. Specifically, after imaging the detector surface with a precise imaging and measuring device, they developed software to stitch the resulting images together, applying any necessary rotations, offsets, and averaging, to produce a smooth image of the whole detector that can be used to detect flaws on the surface of the detector. These images were also tiled appropriately for the Google Maps API to use as a navigation tool, allowing viewers to smoothly zoom and pan across the detector surface. Automated defect identification can now be implemented, increasing the scalability of the germanium detector fabrication.

Wilen, Chris; /Carleton Coll. /KIPAC, Menlo Park

2011-06-22

247

Diversity oriented fluorescence library approach (DOFLA) for live cell imaging probe development.  

PubMed

A cell is the smallest functional unit of life. All forms of life rely on cellular processes to maintain normal functions, and changes in cell function induced by metabolic disturbances, physicochemical damage, infection, or abnormal gene expression may cause disease. To understand basic biology and to develop therapeutics for diseases, researchers need to study live cells. Along with advances in fluorescence microscopy and in vitro cell culture, live-cell imaging has become an essential tool in modern biology for the study of molecular and cellular events. Although researchers have often used fluorescent proteins to visualize cell-type-specific markers, this method requires genetic manipulations, which may not be appropriate in nontransgenic cells. Immunodetection of cellular markers requires the use of xenogenic antibodies, which may not detect intracellular markers in live cells. One option for overcoming these problems is the use of fluorescent small molecules targeted to specific cell types, which can enter live cells and interact with molecules of interest. We have used combinatorial chemistry to develop a large number of fluorescent small molecules as new imaging probes even without prior information about the probes' binding targets and mechanism, a strategy that we call the diversity oriented fluorescence library approach (DOFLA). We have used DOFLA to produce novel sensors and probes that detect a variety of biological and chemical molecules in vivo as well as in vitro. In this Account, we describe a series of fluorescent small molecules developed using DOFLA that bind specifically to particular cell types. These molecules provide new ways to detect and isolate these cells. The fluorescent probes CDy1, CDg4, and CDb8 tag embryonic stem cells and induced pluripotent stem cells but not fibroblasts or germ-line cells. CDr3 binds to an intracellular neural stem cell marker, fatty acid binding protein 7, which allows researchers to separate neural stem cells from embryonic stems cells and more differentiated cells such as neurons and glia. In addition, we have developed CDr10, which distinguishes microglia from neurons and glia. CDy2 stains myocytes much more brightly than myoblasts because of the increase in mitochondrial membrane potential during myogenesis. GY and PiY selectively stain ? and ? cells of pancreatic islets, respectively. Histamine Blue binds directly to histamine and stains basophils and macrophages containing high quantities of histamine. Glutathione Green allows researchers to measure the level of glutathione in cells and tissues by binding to glutathione and then triggering a hypsochromic shift. We have also developed a set of compounds that bind to cancer cells based on the cell type of origin and biocompatible surface-enhanced Raman spectroscopy (SERS) nanotags for cancer detection. In addition to discussing these new probes and their cell-type specificity, we also describe their applications in new assays, cell characterization, and pathology studies. PMID:24552450

Yun, Seong-Wook; Kang, Nam-Young; Park, Sung-Jin; Ha, Hyung-Ho; Kim, Yun Kyung; Lee, Jun-Seok; Chang, Young-Tae

2014-04-15

248

Dewey Searches!  

ERIC Educational Resources Information Center

Describes an activity for young children that helps them conduct subject searches using an automated system that allows customization of access to a library's collection. Explains a timed game that makes use of subject searching and word searching on the topic of dinosaurs. (LRW)

School Library Media Activities Monthly, 2000

2000-01-01

249

Euler vector for search and retrieval of gray-tone images.  

PubMed

A new combinatorial characterization of a gray-tone image called Euler Vector is proposed. The Euler number of a binary image is a well-known topological feature, which remains invariant under translation, rotation, scaling, and rubber-sheet transformation of the image. The Euler vector comprises a 4-tuple, where each element is an integer representing the Euler number of the partial binary image formed by the gray-code representation of the four most significant bit planes of the gray-tone image. Computation of Euler vector requires only integer and Boolean operations. The Euler vector is experimentally observed to be robust against noise and compression. For efficient image indexing, storage and retrieval from an image database using this vector, a bucket searching technique based on a simple modification of Kd-tree, is employed successfully. The Euler vector can also be used to perform an efficient four-dimensional range query. The set of retrieved images are finally ranked on the basis of Mahalanobis distance measure. Experiments are performed on the COIL database and results are reported. The retrieval success can be improved significantly by augmentiong the Euler vector by a few additional simple shape features. Since Euler vector can be computed very fast, the proposed technique is likely to find many applications to content-based image retrieval. PMID:16128461

Bishnu, Arijit; Bhattacharya, Bhargab B; Kundu, Malay K; Murthy, C A; Acharya, Tinku

2005-08-01

250

iMap: A stable layout for navigating the Astronomy Picture of the Day image collection with embedded search  

NASA Astrophysics Data System (ADS)

Effective techniques for organizing and visualizing large image collections are in growing demand as visual search becomes increasingly popular. Targeting an online astronomy archive -- the Astronomy Picture of the Day (APOD) archive with thousands of images -- we present a practical organizational approach for image search and clustering based on a measure of image similarity that leverages both visual and textual information. To lay out images, we introduce iMap, a treemap-based representation for visualizing and navigating image search and clustering results. We show the effectiveness of our approach by demonstrating experimental results from a comparative user study. The results indicate that iMap makes relevant images in APOD easier to find, in particular for educators seeking astronomy images to augment topical or educational classroom presentations.

Nemiroff, Robert J.; Wang, C.; Reese, J. P.; Zhang, H.; Tao, J.; Bonnell, J.

2014-01-01

251

Searching for Cellular Partners of Hantaviral Nonstructural Protein NSs: Y2H Screening of Mouse cDNA Library and Analysis of Cellular Interactome  

PubMed Central

Hantaviruses (Bunyaviridae) are negative-strand RNA viruses with a tripartite genome. The small (S) segment encodes the nucleocapsid protein and, in some hantaviruses, also the nonstructural protein (NSs). The aim of this study was to find potential cellular partners for the hantaviral NSs protein. Toward this aim, yeast two-hybrid (Y2H) screening of mouse cDNA library was performed followed by a search for potential NSs protein counterparts via analyzing a cellular interactome. The resulting interaction network was shown to form logical, clustered structures. Furthermore, several potential binding partners for the NSs protein, for instance ACBD3, were identified and, to prove the principle, interaction between NSs and ACBD3 proteins was demonstrated biochemically.

Parviainen, Ville; Vaheri, Antti; Renkonen, Risto; Bouloy, Michele; Plyusnin, Alexander

2012-01-01

252

University of Toronto Libraries: Anatomia  

NSDL National Science Digital Library

Developed by the University of Toronto Libraries, the Anatomia website offers a collection of about 4,500 plates and images of human anatomy from the Thomas Fisher Rare Book Library ranging in date from 1522 to 1867. Visitors can search the plates by entire plate description, artist, subject words, and/or plate title or can browse the plates by artist, title, or subject. By selecting the Anatomia highlights link, users can view images of importance due to their contributions to the advancement of knowledge, educational value, or artistic value. Students can discover the three processes of creating illustrations during the sixteenth to the nineteenth centuries: relief, intaglio, and planographic. The website supplies a concise history of the study of anatomy.

253

The Subaru SEEDS Imaging Search for Exoplanets Around High-Mass Stars  

NASA Astrophysics Data System (ADS)

We present a status report on the Subaru SEEDS sub-program to search for extra-solar planets around high-mass (mostly A-type) stars. We describe the early-type star target sample, observing procedures, and early results, including the discovery of a new exoplanet. SEEDS, the Strategic Exploration of Exoplanets and Disks with Subaru, is a multi-year, direct-imaging survey to explore the link between planets and disks, and the evolution of protoplanetary systems and debris disks. It is an international project approved by National Astronomical Observatory of Japan (NAOJ) and led by PI M. Tamura. The SEEDS team is comprised of over 25 institutes with more than 90 members participating. With first observations carried out in 2009, the high-mass star sub-program uses the Subaru 8-meter Telescope, a 188 actuator curvature AO system (AO188), and a near infrared imaging science camera (HiCIAO) to search for exoplanet signatures.

Kozakis, Thea; Stevens, L.; Carson, J.; Thalmann, C.; Janson, M.; Goto, M.; Henning, T.; Feldt, M.; McElwain, M. W.; Brandner, W.; Bonnefoy, M.; Biller, B. A.; Wong, P.; Kandori, R.; Tamura, M.; SEEDS Science Team; HiCIAO/AO188 Instrument Team

2013-01-01

254

A Subaru SEEDS Imaging Search for Extrasolar Planets Around Early-Type Stars  

NASA Astrophysics Data System (ADS)

We present a status report on the Subaru SEEDS sub-program to search for extra-solar planets around early-type (mostly A-type) stars. SEEDS, the Strategic Exploration of Exoplanets and Disks with Subaru, is a multi-year, direct-imaging survey to explore the link between planets and disks, and the evolution of protoplanetary systems and debris disks. With first observations carried out in 2009, the high-mass star sub-program uses the Subaru 8-meter Telescope, a 188 actuator curvature AO system (AO188), and a near infrared imaging science camera (HiCIAO) to search for exoplanet signatures. We describe the early-type star target sample, science goals, observing procedures, and early results.

Carson, Joseph; Thalmann, C.; Janson, M.; Kozakis, T.; Wong, P.; Goto, M.; Henning, T.; Brandner, W.; Biller, B.; Bonnefoy, M.; Feldt, M.; McElwain, M.; Kandori, R.; Tamura, M.; SEEDS Team

2012-01-01

255

Performance characteristics of a visual-search human-model observer with sparse PET image data  

NASA Astrophysics Data System (ADS)

As predictors of human performance in detection-localization tasks, statistical model observers can have problems with tasks that are primarily limited by target contrast or structural noise. Model observers with a visual-search (VS) framework may provide a more reliable alternative. This framework provides for an initial holistic search that identifies suspicious locations for analysis by a statistical observer. A basic VS observer for emission tomography focuses on hot "blobs" in an image and uses a channelized nonprewhitening (CNPW) observer for analysis. In [1], we investigated this model for a contrast-limited task with SPECT images; herein, a statisticalnoise limited task involving PET images is considered. An LROC study used 2D image slices with liver, lung and soft-tissue tumors. Human and model observers read the images in coronal, sagittal and transverse display formats. The study thus measured the detectability of tumors in a given organ as a function of display format. The model observers were applied under several task variants that tested their response to structural noise both at the organ boundaries alone and over the organs as a whole. As measured by correlation with the human data, the VS observer outperformed the CNPW scanning observer.

Gifford, Howard C.

2012-02-01

256

Losing Libraries, Saving Libraries  

ERIC Educational Resources Information Center

This summer, as public libraries continued to get budget hit after budget hit across the country, several readers asked for a comprehensive picture of the ravages of the recession on library service. In partnership with 2010 Movers & Shakers Laura Solomon and Mandy Knapp, Ohio librarians who bought the Losing Libraries domain name, "LJ" launched…

Miller, Rebecca

2010-01-01

257

From Federated Search to the Universal Search Solution  

Microsoft Academic Search

This presentation detailed an investigation by law librarians at Franklin Pierce Law Center Library of the viability of federated search and enterprise search to meet the needs of law library patrons. The results of the investigation revealed that federated search products could not answer the needs of law libraries to provide a single search box with a single, integrated result

Roberta F. Woods

2010-01-01

258

Active Contour Using Local Regional Information on Extendable Search Lines (LRES) for Image Segmentation  

NASA Astrophysics Data System (ADS)

In this paper, we propose a novel active contour method for image segmentation using a local regional information on extendable search line. We call it the LRES active contour. Our active contour uses the intensity values along a set of search lines that are perpendicular to the contour front. These search lines are used to inform the contour front toward which direction to move in order to find the object's boundary. Unlike other methods, none of these search lines have a predetermined length. Instead, their length increases gradually until a boundary of the object is found. We compare the performance of our LRES active contour to other existing active contours, both edge-based and region-based. The results show that our method provides more desirable segmentation outcomes, particularly on some images where other methods may fail. Not only is our method robust to noise and able to reach into a deep concave shape, it also has a large capture range and performs well in segmenting heterogeneous textured objects.

Phumeechanya, Sopon; Pluempitiwiriyawej, Charnchai; Thongvigitmanee, Saowapak

259

Efficient Feature Detection and Effective Post-Verification for Large Scale Near-Duplicate Image Search  

Microsoft Academic Search

State-of-the-art near-duplicate image search systems mostly build on the bag-of-local features (BOF) representation. While favorable for simplicity and scalability, these systems have three shortcomings: 1) high time complexity of the local feature detection; 2) discriminability reduction of local descriptors due to BOF quantization; and 3) neglect of the geometric relationships among local features after BOF representation. To overcome these shortcomings,

Hongtao Xie; Ke Gao; Yongdong Zhang; Sheng Tang; Jintao Li; Yizhi Liu

2011-01-01

260

A novel coarse-fine search scheme for digital image correlation method  

Microsoft Academic Search

As a well-established technique for measuring surface deformation, the digital image correlation method (DICM) has received wide application in experimental mechanics and structural analysis in recent years. One of the major challenges in practical applications of this technique is how to achieve the lowest probability of mis-identification and reduce computation cost simultaneously. Based on this understanding, a novel coarse-fine search

Zhi-Feng Zhang; Yi-Lan Kang; Huai-Wen Wang; Qing-Hua Qin; Yu Qiu; Xiao-Qi Li

2006-01-01

261

Uruguay: Le francais en quete d'image (Uruguay: French in Search of an Image).  

ERIC Educational Resources Information Center

The role of French language instruction in Uruguay is assessed. Drawing on results of recent surveys, it is observed that French suffers from a lackluster image, and from a lack of confidence among language teachers themselves. (MSE)

Francais dans le Monde, 1993

1993-01-01

262

DXSoil, a library for 3D image analysis in soil science  

Microsoft Academic Search

A comprehensive series of routines has been developed to extract structural and topological information from 3D images of porous media. The main application aims at feeding a pore network approach to simulate unsaturated hydraulic properties from soil core images. Beyond the application example, the successive algorithms presented in the paper allow, from any 3D object image, the extraction of the

Jean-fran-cois Delerue; Edith Perrier

2002-01-01

263

"Do Users Do What They Think They Do?"- A Comparative Study of User Perceived and Actual Information Searching Behaviour in the National Electronic Library of Infection  

NASA Astrophysics Data System (ADS)

In the last decade, the Internet has profoundly changed the delivery of healthcare. Medical websites for professionals and patients are playing an increasingly important role in providing the latest evidence-based knowledge for professionals, facilitating virtual patient support groups, and providing an invaluable information source for patients. Information seeking is the key user activity on the Internet. However, the discrepancy between what information is available and what the user is able to find has a profound effect on user satisfaction. The UK National electronic Library of Infection (NeLI, www.neli.org.uk) and its subsidiary projects provide a single-access portal for quality-appraised evidence in infectious diseases. We use this national portal, as test-bed for investigating our research questions. In this paper, we investigate actual and perceived user navigation behaviour that reveals important information about user perceptions and actions, in searching for information. Our results show: (i) all users were able to access information they were seeking; (ii) broadly, there is an agreement between "reported" behaviour (from questionnaires) and "observed" behaviour (from web logs), although some important differences were identified; (iii) both browsing and searching were equally used to answer specific questions and (iv) the preferred route for browsing for data on the NeLI website was to enter via the "Top Ten Topics" menu option. These findings provide important insights into how to improve user experience and satisfaction with health information websites.

Roy, Anjana; Kostkova, Patty; Catchpole, Mike; Carson, Ewart

264

Freshwater and Marine Image Bank  

NSDL National Science Digital Library

This image bank is part of the University of Washington Libraries Digital Collections. The site makes available more than 2600 images, all from 18th and 19th century publications, many of which "lay buried in aging volumes on fragile paper in obscure corners of library stacks." Users can search or browse for images; each has been scanned for the digital collection and includes a description and bibliographic citation. This is a unique resource that uses modern technology to preserve substantial historical data.

2000-01-01

265

A FITS Library Package  

NASA Astrophysics Data System (ADS)

The Flexible Image Transport System (FITS) Library Package for Linux, and Mac OS X consists of a collection of high and low level routines to carry out various useful functions associated with FITS image files. Besides the source code for the library, a demonstration program, "testfits", which illustrates the library's capabilities and shows how to code the subroutines into your own customized applications, is included. Source code of subroutines from the MIIPS Plot Package and subroutines to display images on Enhanced SAOimage are included as well. The source code and executables can be downloaded from www.chara.gsu.edu/ gudehus/fits_library_package.html.

Gudehus, Donald H.

2009-12-01

266

Microbe Library  

NSDL National Science Digital Library

The Microbe Library is a searchable microbiology portal provided by the American Society for Microbiology (ASM). The portal contains visual images and animations; curriculum activities for both classroom and laboratory; an articles section containing the tri-annual educational newsletter and annual educational journal, as well as feature articles from ASM News; and educational reviews and resources. The Microbe Library is linked directly to a recommended core curriculum for introductory microbiology education. Visual resources include access to over 300 images, animations, and videos. The posted classroom activities and laboratory exercises were developed by faculty at diverse institutions to improve instruction. They include inquiry-based field-tested materials, student-active learning activities, and ideas for projects or research approaches.

267

A client server model to facilitate creation of a medical image teaching library.  

PubMed

A simple and convenient system for indexing and archiving medical images used in teaching was developed. The approach was to combine a smart client-side graphical user interface that controlled image size, file format, and keyword structure, and communicated with the hospital information system via hypertext mark-up language, to populate the interface with user selectable pull-down menus. The result is a system that is easily extensible beyond the radiology images for which it was originally designed. Only minor modifications of the client interface are required to adapt the program to accept any file format or image type. PMID:10461575

Hornof, W J; Ballance, D W; Brenston, P R; Self, J A

1999-08-01

268

Searching for transits in the Wide Field Camera Transit Survey with difference-imaging light curves  

NASA Astrophysics Data System (ADS)

The Wide Field Camera Transit Survey is a pioneer program aiming at for searching extra-solar planets in the near-infrared. The images from the survey are processed by a data reduction pipeline, which uses aperture photometry to construct the light curves. We produce an alternative set of light curves using the difference-imaging method for the most complete field in the survey and carry out a quantitative comparison between the photometric precision achieved with both methods. The results show that difference-photometry light curves present an important improvement for stars with J > 16. We report an implementation on the box-fitting transit detection algorithm, which performs a trapezoid-fit to the folded light curve, providing more accurate results than the box-fitting model. We describe and optimize a set of selection criteria to search for transit candidates, including the V-shape parameter calculated by our detection algorithm. The optimized selection criteria are applied to the aperture photometry and difference-imaging light curves, resulting in the automatic detection of the best 200 transit candidates from a sample of ~475 000 sources. We carry out a detailed analysis in the 18 best detections and classify them as transiting planet and eclipsing binary candidates. We present one planet candidate orbiting a late G-type star. No planet candidate around M-stars has been found, confirming the null detection hypothesis and upper limits on the occurrence rate of short-period giant planets around M-dwarfs presented in a prior study. We extend the search for transiting planets to stars with J ? 18, which enables us to set a stricter upper limit of 1.1%. Furthermore, we present the detection of five faint extremely-short period eclipsing binaries and three M-dwarf/M-dwarf binary candidates. The detections demonstrate the benefits of using the difference-imaging light curves, especially when going to fainter magnitudes.

Zendejas Dominguez, J.; Koppenhoefer, J.; Saglia, R. P.; Birkby, J. L.; Hodgkin, S. T.; Kovács, G.; Pinfield, D. J.; Sip?cz, B.; Barrado, D.; Bender, R.; del Burgo, C.; Cappetta, M.; Martín, E. L.; Nefs, S. V.; Riffeser, A.; Steele, P.

2013-12-01

269

Microbiology Video Library  

NSDL National Science Digital Library

The Microbiology Video Library offers a wide variety of downloadable images and short QuickTime movies. It includes an index of species pages, each with an image and movie, informative text page, and links to related books. A more extensive CD-library is available for purchase.

Cann, Alan; Immunology, University O.

270

Art Libraries Section. Special Libraries Division. Papers.  

ERIC Educational Resources Information Center

Papers on art libraries and information services for the arts, which were presented at the 1983 International Federation of Library Associations (IFLA) conference, include: (1) "'I See All': Information Technology and the Universal Availability of Images" by Philip Pacey (United Kingdom); (2) "Online Databases in the Fine Arts" by Michael Rinehart…

International Federation of Library Associations, The Hague (Netherlands).

271

University of Washington Digital Library Initiatives  

NSDL National Science Digital Library

The University of Washington Libraries present this collection of a dozen image databases created as part of an ongoing digital library program. There are ten collections of photographs from University of Washington Special Collections that include views of Seattle dated 1891 - 1940, Harriman's expedition to Alaska in 1899, the Klondike gold rush, and a photo album from 1925 promoting Mount Rainier National Park. There are also two image databases created in collaboration with other groups: 26 images of Jacob Lawrence paintings, with the Jacob Lawrence Catalogue Raisonne Project, and the Cities and Buildings Database, 5,000 architectural images, with the University of Washington Architecture Department. All of the databases use the CONTENT software suite developed by the Center for Information Systems Optimization (CISO) at the University of Washington, and so all have the same search interface regardless of the subject. Information about CONTENT is also available at the site.

272

XML in Libraries.  

ERIC Educational Resources Information Center

This book presents examples of how libraries are using XML (eXtensible Markup Language) to solve problems, expand services, and improve systems. Part I contains papers on using XML in library catalog records: "Updating MARC Records with XMLMARC" (Kevin S. Clarke, Stanford University) and "Searching and Retrieving XML Records via the Web" (Theo van…

Tennant, Roy, Ed.

273

An adaptive knowledge-driven medical image search engine for interactive diffuse parenchymal lung disease quantification  

NASA Astrophysics Data System (ADS)

Characterization and quantification of the severity of diffuse parenchymal lung diseases (DPLDs) using Computed Tomography (CT) is an important issue in clinical research. Recently, several classification-based computer-aided diagnosis (CAD) systems [1-3] for DPLD have been proposed. For some of those systems, a degradation of performance [2] was reported on unseen data because of considerable inter-patient variances of parenchymal tissue patterns. We believe that a CAD system of real clinical value should be robust to inter-patient variances and be able to classify unseen cases online more effectively. In this work, we have developed a novel adaptive knowledge-driven CT image search engine that combines offline learning aspects of classification-based CAD systems with online learning aspects of content-based image retrieval (CBIR) systems. Our system can seamlessly and adaptively fuse offline accumulated knowledge with online feedback, leading to an improved online performance in detecting DPLD in both accuracy and speed aspects. Our contribution lies in: (1) newly developed 3D texture-based and morphology-based features; (2) a multi-class offline feature selection method; and, (3) a novel image search engine framework for detecting DPLD. Very promising results have been obtained on a small test set.

Tao, Yimo; Zhou, Xiang Sean; Bi, Jinbo; Jerebkoa, Anna; Wolf, Matthias; Salganicoff, Marcos; Krishnana, Arun

2009-02-01

274

Optimal search guided by partial active shape model for prostate segmentation in TRUS images  

NASA Astrophysics Data System (ADS)

Automatic prostate segmentation in transrectal ultrasound (TRUS) can be used to register TRUS with magnetic resonance (MR) images for TRUS/MR-guided prostate interventions. However, robust and automated prostate segmentation is challenging due to not only the low signal to noise ratio in TRUS but also the missing boundaries in shadow areas caused by calcifications or hyper-dense prostate tissue. Lack of image information in those areas is a barrier for most existing segmentation methods, which normally leads to user interaction for manual correction. This paper presents a novel method to utilize prior shapes estimated from partial contours to guide an optimal search for prostate segmentation. The proposed method is able to automatically extract prostate boundary from 2D TRUS images without user interaction for correcting shapes in shadow areas. In our approach, the point distribution model was first used to learn shape priors of prostate from manual segmentation results. During segmentation, the missing boundaries in shadow areas are estimated by using a new partial active shape model, which uses partial contour as input but returns complete estimated shape. Prostate boundary is then obtained by using a discrete deformable model with optimal search, which is implemented efficiently by using dynamic programming to produce robust segmentation results. The segmentation of each frame is performed in multi-scale for robustness and computational efficiency. In our experiments of segmenting 162 images grabbed from ultrasound video sequences of 10 patients, the average mean absolute distance was 1.79mm+/-0.95mm. The proposed method was implemented in C++ based on ITK and took about 0.3 seconds to segment the prostate from a 640x480 image on a Core2 1.86 GHz PC.

Yan, Pingkun; Xu, Sheng; Turkbey, Baris; Kruecker, Jochen

2009-02-01

275

Unbiased discovery of in vivo imaging probes through in vitro profiling of nanoparticle libraries  

PubMed Central

Summary In vivo imaging reveals how proteins and cells function as part of complex regulatory networks in intact organisms, and thereby contributes to a systems-level understanding of biological processes. However, the development of novel in vivo imaging probes remains challenging. Most probes are directed against a limited number of pre-specified protein targets; cell-based screens for imaging probes have shown promise, but raise concerns over whether in vitro surrogate cell models recapitulate in vivo phenotypes. Here, we rapidly profile the in vitro binding of nanoparticle imaging probes in multiple samples of defined target vs. background cell types, using primary cell isolates. This approach selects for nanoparticles that show desired targeting effects across all tested members of a class of cells, and decreases the likelihood that an idiosyncratic cell line will unduly skew screening results. To adjust for multiple hypothesis testing, we use permutation methods to identify nanoparticles that best differentiate between the target and background cell classes. (This approach is conceptually analogous to one used for high-dimensionality datasets of genome-wide gene expression, e.g. to identify gene expression signatures that discriminate subclasses of cancer.) We apply this approach to the identification of nanoparticle imaging probes that bind endothelial cells, and validate our in vitro findings in human arterial samples, and by in vivo intravital microscopy in mice. Overall, this work presents a generalizable approach to the unbiased discovery of in vivo imaging probes, and may guide the further development of novel endothelial imaging probes.

Kelly, Kimberly A.; Shaw, Stanley Y.; Nahrendorf, Matthias; Kristoff, Kelly; Aikawa, Elena; Schreiber, Stuart L.; Clemons, Paul A.; Weissleder, Ralph

2009-01-01

276

Mountain West Digital Library  

NSDL National Science Digital Library

Formed as part of a consortium between universities, colleges, museums, and historical societies in Utah, Nevada, and Idaho, the Mountain West Digital Library contains dozens of digital collections whose content ranges far beyond that of the geographical area covered by the Mountain West region. On their homepage, visitors can learn about the "Featured Collection" and then browse all of the available collections via a list of partner institutions. All told, there are over 100 collections here, and visitors can search the entire archive for text, images, video, or audio clips. A couple of the collections should not be missed, including "Before Gaming: Las Vegas Centennial", which provides visual documentation of a (relatively) quiet Las Vegas before the emergence of gambling. Additionally, the Mormon publication "The Young Woman's Journal" provides insight into the lives of Mormon women in the early 20th century.

277

Search for temperature-related albedo changes in nightside and posteclipse images of Io  

NASA Astrophysics Data System (ADS)

Using an image-summing process that increases the visibility of Jupiter-lit surface features in Voyager images, we have produced the best-ever violet-filter image of the nightside of Io and the best-ever nightside/dayside brightness ratio map of this jovian moon. The ratio map shows no convincing evidence, on either global or local scales, of diurnal temperature-dependent albedo variations. We have also taken an image-ratioing technique developed by O'Shaughnessy et al. (1989), which those authors applied to Voyager violet-filter observations of one Io eclipse reappearance, and extended it to two other, higher-resolution Voyager posteclipse imaging sequences. In none of three imaging sequences do we find any isolated surface regions that convincingly exhibit posteclipse temperature-related albedo variations. These negative results suggest that on Io, pure cyclo-octasulfur (S8), and transient nighttime or in-eclipse deposits of SO2 frost, are at best limited to isolated areas smaller than the resolution of the images in use (i.e., smaller than a few tens of kilometers in size). Such limits are consistent with (1) the negative results reported by the majority of telescopic observers who have searched for posteclipse brightening of Io, (2) indications that physical processes in the ionian surface environment will change any S8 into other allotropes of sulfur, and (3) suggestions that Io's atmosphere is too thin to allow the deposition of transient, optically thick SO2 frost layers at nighttime or during eclipse.

Simonelli, D. P.; Boucher, J.; Helfenstein, P.; Veverka, J.; O'Shaughnessy, M.

1994-02-01

278

Liquid chromatography/mass spectrometry of domoic acid and lipophilic shellfish toxins with selected reaction monitoring and optional confirmation by library searching of product ion spectra.  

PubMed

LC/MS methodology for the analysis of domoic acid and lipophilic toxins in shellfish was developed using a hybrid triple quadrupole linear ion trap mass spectrometer. For routine quantitation a scheduled selected reaction monitoring (SRM) method for the analysis of domoic acid, okadaic acid, dinophysistoxins, azaspiracids, pectenotoxins, yessotoxins, gymnodimines, spirolides, and pinnatoxins was developed and validated. The method performed well in terms of LOD, linearity, precision, and trueness. Taking advantage of the high instrument sensitivity, matrix effects were mitigated by reducing the amount of sample introduced to the mass spectrometer. Optionally, samples can be analyzed using information dependent acquisition (IDA) methods, either in positive or negative mode, which can provide an extra level of confirmation by matching the full product ion spectra acquired for a sample with those from a specially constructed spectral library. Methods were applied to the analysis df a new certified reference material and Canadian mussels (Mytilus edulis) implicated in a 2011 diarrhetic shellfish poisoning (DSP) incident. The scheduled SRM method enabled the screening and quantitation of multiple phycotoxins. As DSP had not previously been observed in this area of Canada, positive identification of putative toxins was accomplished using the IDA and spectral search method. Analysis of the 2011 toxic mussel samples revealed the presence of high levels of dinophysistoxin-1, which explained the DSP symptoms, as well as pectenotoxins, yessotoxins, and variety of cyclic imines. PMID:24830142

McCarron, Pearse; Wright, Elliott; Quilliam, Michael A

2014-01-01

279

Conducting a Web Search.  

ERIC Educational Resources Information Center

Keyword and text string searches of online library catalogs often provide different results according to library and database used and depending upon how books and journals are indexed. For this reason, online databases such as ERIC often provide tutorials and recommendations for searching their site, such as how to use Boolean search strategies.…

Miller-Whitehead, Marie

280

UNESCO Library Portal  

NSDL National Science Digital Library

This site from UNESCO is offered as a resource for information on both worldwide libraries and issues and news related to librarianship, with an emphasis on "activities in the Organization's fields of competence such as education, sciences, culture and information." As with most portals, this metasite features annotated links organized by category and topic. In this case, they include library Websites (organized by type), library associations and networks, preservation and access initiatives, librarianship, education and training, and conferences and meetings (this section helpfully lists specific events). Other features include library news and a featured site on the main page, an internal search engine, and a free newsletter.

281

Use Made of Technical Libraries.  

ERIC Educational Resources Information Center

An analysis of 6300 acts of use in 104 technical libraries in the United Kingdom is reported. This study restricts itself to information search employing documents through the library and concentrates on the following aspects of behavior: (1) the form of the demand made upon the library, (2) the origin of the demand, (3) the kinds of documents…

Slater, Margaret; Fisher Pamela

282

Digital Libraries on the Internet.  

ERIC Educational Resources Information Center

This paper discusses digital libraries on the Internet. The resource repository hierarchy, consisting of two major paradigms, search engines (SEs) and digital libraries, is presented. SEs are classified into three categories: basic-SE, directory, and meta-SE. The following six major characteristics of a library are summarized: collection of data…

Sharon, Taly; Frank, Ariel J.

283

The Berkeley Automatic Imaging Telescopes: The Search for and Photometry of Supernovae  

NASA Astrophysics Data System (ADS)

We present a progress report on the Berkeley Automatic Imaging Telescope (BAIT) project, which uses the fully robotic 0.5-m and 0.76-m telescopes at the Leuschner Observatory near the UC Berkeley campus. One of the main scientific programs with the 0.76-m telescope is the Leuschner Observatory Supernova Search (LOSS), which monitors 677 northern galaxies for supernovae. This search began in winter 1992 and particularly emphasizes early detection. So far LOSS has discovered six supernovae (1992bt, 1993G, 1993R, 1993X, 1993Z, and 1994D). We present performance and supernova rate statistics derived from LOSS. Additionally, the 0.5-m telescope is used for long-term photometry of supernovae, active galactic nuclei, and other variable and ephemeral objects. We present and analyze the multi-band light curves for 15 recent supernovae obtained with both the 0.5-m and 0.76-m telescopes, including the bright supernovae SN 1993J, SN 1994D, SN 1994I, and SN 1994Y. A robotic 0.76-m telescope, the Katzman Automatic Imaging Telescope, will soon be installed at Lick Observatory to continue the scientific objectives and advance the performance of this project.

van Dyk, Schuyler D.; Treffers, Richard R.; Richmond, Michael W.; Filippenko, Alexei V.; Paik, Young

1994-12-01

284

Olfactory search-image use by a mosquito-eating predator.  

PubMed

By choosing blood-carrying mosquitoes as prey, Evarcha culicivora, an East African salticid spider, specializes at feeding indirectly on vertebrate blood. It also has an exceptionally complex mate-choice system. An earlier study revealed that search-image use assists E. culicivora in finding prey and mates when restricted to using vision alone. Here we show that search-image use assists E. culicivora in finding prey and mates when restricted to using olfaction alone. After being primed with prey odour or mate odour (control: not primed with odour), spiders were transferred to an olfactometer designed to test ability to find a prey-odour or mate-odour source that was either 'cryptic' (i.e. accompanied by a masking odour source, Lantana camara) or 'conspicuous' (no L. camara odour). When tested with conspicuous odour, the identity of the priming odour had no significant effect on how many spiders found the odour source. However, when tested with cryptic odour, significantly more spiders found the odour source when primed with congruent odour and significantly fewer spiders found the odour source when primed with incongruent odour. PMID:20504813

Cross, Fiona R; Jackson, Robert R

2010-10-22

285

Olfactory search-image use by a mosquito-eating predator  

PubMed Central

By choosing blood-carrying mosquitoes as prey, Evarcha culicivora, an East African salticid spider, specializes at feeding indirectly on vertebrate blood. It also has an exceptionally complex mate-choice system. An earlier study revealed that search-image use assists E. culicivora in finding prey and mates when restricted to using vision alone. Here we show that search-image use assists E. culicivora in finding prey and mates when restricted to using olfaction alone. After being primed with prey odour or mate odour (control: not primed with odour), spiders were transferred to an olfactometer designed to test ability to find a prey-odour or mate-odour source that was either ‘cryptic’ (i.e. accompanied by a masking odour source, Lantana camara) or ‘conspicuous’ (no L. camara odour). When tested with conspicuous odour, the identity of the priming odour had no significant effect on how many spiders found the odour source. However, when tested with cryptic odour, significantly more spiders found the odour source when primed with congruent odour and significantly fewer spiders found the odour source when primed with incongruent odour.

Cross, Fiona R.; Jackson, Robert R.

2010-01-01

286

Fully polarimetric passive W-band millimeter wave imager for wide area search  

NASA Astrophysics Data System (ADS)

We describe the design and phenomenology imaging results of a fully polarimetric W-band millimeter wave (MMW) radiometer developed by Pacific Northwest National Laboratory for wide-area search. Operating from 92-94 GHz, the W-band radiometer employs a Dicke switching heterodyne design isolating the horizontal and vertical mm-wave components with 40 dB of polarization isolation. Design results are presented for both infinite conjugate off-axis parabolic and finite conjugate off-axis elliptical fore-optics using optical ray tracing and diffraction calculations. The received linear polarizations are down-converted to a microwave frequency band and recombined in a phase-shifting network to produce all six orthogonal polarization states of light simultaneously, which are used to calculate the Stokes parameters for display and analysis. The resulting system performance produces a heterodyne receiver noise equivalent delta temperature (NEDT) of less than 150m Kelvin. The radiometer provides novel imaging capability by producing all four of the Stokes parameters of light, which are used to create imagery based on the polarization states associated with unique scattering geometries and their interaction with the down welling MMW energy. The polarization states can be exploited in such a way that man-made objects can be located and highlighted in a cluttered scene using methods such as image comparison, color encoding of Stokes parameters, multivariate image analysis, and image fusion with visible and infrared imagery. We also present initial results using a differential imaging approach used to highlight polarization features and reduce common-mode noise. Persistent monitoring of a scene using the polarimetric passive mm-wave technique shows great promise for anomaly detection caused by human activity.

Tedeschi, Jonathan; Bernacki, Bruce; Sheen, Dave; Kelly, Jim; McMakin, Doug

2013-09-01

287

Mapping coral reef benthic substrates using hyperspectral space-borne images and spectral libraries  

Microsoft Academic Search

The suitability of Hyperion, the first civilian hyperspectral sensor in space, for mapping coral reef benthic substrates has been investigated in this study. An image of Cairns Reef, in the northern section of the Australian Great Barrier Reef (GBR), was acquired during Hyperion Calibration and Validation activities. A field experiment was carried out on Cairns Reef to collect information about

Tiit Kutser; Ian Miller; David L. B. Jupp

2006-01-01

288

A Bayesian Approach To Spread Spectrum Watermark Detection and Secure Copyright Protection for Digital Image Libraries  

Microsoft Academic Search

Digital watermarks have been proposed as a methodfor discouraging illicit copying and distribution ofcopyrighted material, and to create secure digital imagelibraries by adding to images copyright and userrightinformation. Using a robust digital watermark todetect and trace copyright violations has therefore lotof interest. This paper describes an approach to embeddinga digital watermark using the Fourier transform.The paper also addresses the difficult

Joseph Ó Ruanaidh; Gabriella Csurka

1999-01-01

289

Proceedings of the Conference on Image Storage and Transmission Systems for Libraries...December 1-2, 1969, National Bureau of Standards.  

ERIC Educational Resources Information Center

The challenge of networking is now being extended to cooperative library and information center systems. There are new demands for improved techniques for image storage and transmission, specifically including automated storage and retrieval of microforms and ultra-microforms and new developments in graphic and facsimile transmission. In this…

Henderson, Madeline M., Comp.

290

Mammographic CADx system using an image library with an intelligent agent: a pattern matching approach  

NASA Astrophysics Data System (ADS)

It is conceivable that a comprehensive clinical case library with intelligent agents can sort and render clinically similar cases and present clinically significant features to assist the radiologist in interpreting mammograms. In this study, we used a deformable vector diagram as the primary framework for matching the mammographic masses. The vector diagram provides gradient and shape features of the mass. The deformable algorithm allows flexible matching. The vector diagram was also incorporated with our newly developed delineation method using steepest changes of a probability based cost-function. Thus it allows us to automatically extract the main body and significant part of border region for pattern matching using a weighted mutual information technique. We have collected 86 mammograms. Of these cases, 46 contain a benign mass and the other 40 contain a malignant mass. Using the weighted mutual information technique on the vector diagram of the mass region, we found that the benign masses can be sorted into 6 groups except one case; the malignant masses can be sorted into 8 groups except two cases. For all 86 cases, the masses can be sorted into 13 groups except three cases. In addition, one group of benign masses and one group of malignant mass cases merged into one which contains 10 cases. Hence, the success sorting rate was 85.7% (12/14) in terms of group and was 84.9% (73/86) in terms of case, respectively.

Lo, Shih-Chung B.; Freedman, Matthew T.; Kinnard, Lisa; Makariou, Erini

2006-03-01

291

Building an intranet digital mammography case library  

NASA Astrophysics Data System (ADS)

To practice mammography diagnosis effectively, radiologists expect convenient access to well-organized and authoritative mammography related information, especially when there is case in question. The purpose of this study is to build infrastructural diagnosis support by incorporating various clinical information into a digital mammography case library, and allow user to search the library based on mammographic findings. The digital mammography case library has a three- tier architecture: (1) Back-end mammography databases integrate multimedia clinical information from various operational systems, including RIS and PACS. Cases are stored in a finding index database powered by an object-relational database with finding-coded reports, which are modeled around the ACR BI-RADS (American College of Radiology, Breast Imaging Report and Data System) standard. (2) The middle-end application controllers process application logic, such as user authorization, HTTP request handling, database connection and dynamic HTML page generation. (3) Web-based user interface is developed for authorized Intranet personnel to formulate query based on radiological finding (such as mass, calcification and architectural distortion), shape and assessment, using ACR BI-RADS specified lexicon. The case library so far has 103 cases selected from over 800 digital mammography studies carried out at the Mt. Zion hospital, UCSF, during an on-going digital telemammography project. We believe that an Intranet based digital mammography case library with mammographic finding search capability facilitates continuous medical education and online decision support, by providing exemplary study to compare with case in question.

Zhang, Hong; Lou, Andrew S.; Fan, Yu; Sickles, Edward A.; Huang, H. K.

2000-05-01

292

Exploring Library 2.0 on the Social Web  

ERIC Educational Resources Information Center

Library 2.0 literature has described many of the possibilities Web 2.0 technologies offer to libraries. Case studies have assessed local use, but no studies have measured the Library 2.0 phenomenon by searching public social networking sites. This study used library-specific terms to search public social networking sites, blog search engines, and…

Brantley, John S.

2010-01-01

293

Digital Library for the Decorative Arts and Material Culture: Image and Text Collections  

NSDL National Science Digital Library

The decorative arts and material culture get their full due at this lovely online collection created by the University of Wisconsin's Digital Collections program. With generous funding from the Chipstone Foundation, the staff members at the Digital Collections program have digitized a variety of primary and secondary resources related to the decorative arts, with a particular focus on Early America. The materials offered here for consideration include items from the Chipstone ceramics and furniture collection and a number of important early documents, such as "The Gentleman and Cabinet-Maker's Director" from 1754 and Humphry Repton's 1794 work, "Sketches and hints on landscape gardening". The site includes several dozens other works, and visitors can also look through all of the materials via a sophisticated search engine.

294

SPHERE-IFS: The spectro differential imager of the VLT for exoplanet search .  

NASA Astrophysics Data System (ADS)

The SPHERE is an exo-solar planet imager, which goal is to detect giant exo-solar planets in the vicinity of bright stars and to characterize them through spectroscopic and polarimetric observations. It is an complete system with a core made of an extreme-Adaptive Optics (AO) turbulence correction, pupil tracker and interferential coronagraphs. At its back end, a differential dual imaging camera and an integral field spectrograph (IFS) work in the Near Infrared (NIR) Y, J, H and Ks bands (0.95 - 2.32microns) and a high resolution polarization camera covers the visible (0.6 - 0.9microns). The IFS is a low resolution spectrograph (R 50) which works in the near IR (0.95 - 1.6microns), an ideal wavelength range for the detection of planetary features. In our baseline design the IFU is a new philosophy micro-lens array of about 145x145 elements designed to reduce as low as possible the contrast. The IFU will cover a field of view of about 1.7 x 1.7 square arcsecs reaching a contrast of 10-7, giving an high contrast and high spatial resolution ``imager'' able to search for planet well inside the star PSF. Currently in the first phase of integration IFS will see the first light at ESO Paranal, as VLT II generations instruments, in the Q3 2011.

De Caprio, V.; Giro, E.; Claudi, R. U.; Anselmi, U.; Bruno, P.; Cascone, C.; Desidera, S.; Gratton, R.; Lessio, L.; Lizon, J. L.; Mesa, D.; Scuderi, S.; Stadler, E.; Turatto, M.; Beuzit, J. L.

295

SPHERE IFS: the spectro differential imager of the VLT for exoplanets search  

NASA Astrophysics Data System (ADS)

The SPHERE is an exo-solar planet imager, which goal is to detect giant exo-solar planets in the vicinity of bright stars and to characterize them through spectroscopic and polarimetric observations. It is a complete system with a core made of an extreme-Adaptive Optics (AO) wavefront correction, a pupil tracker and diffraction suppression through a variety of coronagraphs. At its back end, a differential dual imaging camera and an integral field spectrograph (IFS) work in the Near Infrared (NIR) Y, J, H and Ks bands (0.95 - 2.32?m), and a high resolution polarization camera covers the optical range (0.6 - 0.9 ?m). The IFS is a low resolution spectrograph (R~50) working in the near IR (0.95-1.65 microns), an ideal wavelength range for the detection of giant planet features. In our baseline design the IFU is a new philosophy microlens array of about 145x145 elements designed to reduce as much as possible the cross talk when working at diffraction limit. The IFU will cover a field of view of about 1.7 x 1.7 square arcsecs reaching a contrast of 10-7, providing a high contrast and high spatial resolution "imager" able to search for planet well inside the star PSF.

Claudi, R. U.; Turatto, M.; Giro, E.; Mesa, D.; Anselmi, U.; Bruno, P.; Cascone, E.; de Caprio, V.; Desidera, S.; Dorn, R.; Fantinel, D.; Finger, G.; Gratton, R. G.; Lessio, L.; Lizon, J. L.; Salasnic, B.; Scuderi, S.; Dohlen, Kj.; Beuzit, J. L.; Puget, P.; Antichi, J.; Hubin, N.; Kasper, M.

2010-07-01

296

SPHERE IFS: the spectro differential imager of the VLT for exoplanets search  

NASA Astrophysics Data System (ADS)

SPHERE is an exo-solar planet imager, which goal is to detect giant exo-solar planets in the vicinity of bright stars and to characterize them through spectroscopic and polarimetric observations. It is a complete system with a core made of an extreme-Adaptive Optics (AO) turbulence correction, pupil tracker and interferential coronagraphs. At its back end, a differential dual imaging camera and an integral field spectrograph (IFS) work in the Near Infrared (NIR) Y, J, H and Ks bands (0.95 - 2.32?m) and a high resolution polarization camera covers the visible (0.6 - 0.9 ?m). The IFS is a low resolution spectrograph (R~50 and R~30) which works in the near IR (0.95-1.7 microns), an ideal wavelength range for the detection of planetary features. In our baseline design the IFU is a new philosophy microlens array of about 145x145 elements designed to reduce as low as possible the contrast. The IFU will cover a field of view of about 1.8 x 1.8 square arcsecs reaching a contrast of 10-7, giving an high contrast and high spatial resolution "imager" able to search for planet well inside the star PSF.

Claudi, R. U.; Turatto, M.; Gratton, R. G.; Antichi, J.; Bonavita, M.; Bruno, P.; Cascone, E.; De Caprio, V.; Desidera, S.; Giro, E.; Mesa, D.; Scuderi, S.; Dohlen, K.; Beuzit, J. L.; Puget, P.

2008-08-01

297

Library resources on the Internet  

NASA Astrophysics Data System (ADS)

Library resources are prevalent on the Internet. Library catalogs, electronic books, electronic periodicals, periodical indexes, reference sources, and U.S. Government documents are available by telnet, Gopher, World Wide Web, and FTP. Comparatively few copyrighted library resources are available freely on the Internet. Internet implementations of library resources can add useful features, such as full-text searching. There are discussion lists, Gophers, and World Wide Web pages to help users keep up with new resources and changes to existing ones. The future will bring more library resources, more types of library resources, and more integrated implementations of such resources to the Internet.

Buchanan, Nancy L.

1995-07-01

298

Digital case library: a resource for teaching, learning, and diagnosis support in radiology.  

PubMed

The authors compiled a digital case library, a database of cases for intracranial masses, that can be used as an electronic teaching file and image source for case-based teaching applications, electronic textbooks, and diagnosis support tools. The library is a relational database with a feature-coded image archive that is structured around relevant radiologic findings. Its index for coding image content is structured as a hierarchical image description index that uses the relational format. Rules that control the search direction within the library and that generate lists of diagnostic hypotheses for decision support tools are embedded within the database structure. Currently, the library consists of 200 cases and 1,100 images that present intracranial masses on radiographs, computed tomograms, magnetic resonance images, and angiograms. Each image in the library is indexed according to its radiologic content. The user may search for reference images that contain particular radiologic features by formulating image content-based queries. The hierarchical index of radiologic findings allows multilevel query formulation that depends on the user's level of experience. PMID:7899594

Macura, K J; Macura, R T; Morstad, B D

1995-01-01

299

Image management research  

NASA Technical Reports Server (NTRS)

Two types of research issues are involved in image management systems with space station applications: image processing research and image perception research. The image processing issues are the traditional ones of digitizing, coding, compressing, storing, analyzing, and displaying, but with a new emphasis on the constraints imposed by the human perceiver. Two image coding algorithms have been developed that may increase the efficiency of image management systems (IMS). Image perception research involves a study of the theoretical and practical aspects of visual perception of electronically displayed images. Issues include how rapidly a user can search through a library of images, how to make this search more efficient, and how to present images in terms of resolution and split screens. Other issues include optimal interface to an IMS and how to code images in a way that is optimal for the human perceiver. A test-bed within which such issues can be addressed has been designed.

Watson, Andrew B.

1988-01-01

300

USGS Digital Spectral Library  

NSDL National Science Digital Library

The USGS Spectroscopy Lab posts, "Researchers at the Spectroscopy Lab have measured the spectral reflectance of hundreds of materials in the lab, and have compiled a spectral library. The library is used as a reference for material identification in remote sensing images." This site is still under construction but it contains detailed plots and sample descriptions (.gif).

301

Health sciences library building projects, 1998 survey.  

PubMed Central

Twenty-eight health sciences library building projects are briefly described, including twelve new buildings and sixteen additions, remodelings, and renovations. The libraries range in size from 2,144 square feet to 190,000 gross square feet. Twelve libraries are described in detail. These include three hospital libraries, one information center sponsored by ten institutions, and eight academic health sciences libraries. Images

Bowden, V M

1999-01-01

302

Parish Libraries.  

ERIC Educational Resources Information Center

Describes how to develop a cost- and time-efficient parish library. Discusses ongoing promotion of the library; leadership; costs; staffing; shelving and classification systems; location; nonprint media; library policy; and ways to increase visibility. (AEF)

Bingham, Anne

1997-01-01

303

The ROYACS User Library.  

NASA Astrophysics Data System (ADS)

The main purpose with the ROYACS User Library is to provide ANA users at the Stockholm Observatory with suitable subprograms for data reduction of solar images. Other useful routines have also been included in order to improve the programming environment.

Löfdahl, M.

304

Columbia Library Columns  

NSDL National Science Digital Library

Most institutions keep records of their various activities, and university libraries are no different. Columbia University's Library published its in-house "Columbia Library Columns" from 1951 to 1996. Over the years it was edited by several people, including Kenneth A. Lohf, Jean Ashton, and Michael Stoller. This remarkable archive brings together the entire run; all told, it includes 135 issues and 6,900 pages. Visitors can browse the table of contents, peruse a list of all the volumes, and also perform a detailed keyword search. The Selected Articles of Interest collection brings together some of the most compelling offerings, such as "The John Jay Papers," "Instructing Women: Conduct Books in the Plimpton Library," and a rather intriguing piece from 1978 titled "The Library of the Future Has Books."

305

Library School Student Associations: A Profile.  

National Technical Information Service (NTIS)

A search of the literature of librarianship reveals that very little has been written concerning library school student associations. Two questionnaires were designed; one to be sent to the deans or directors of American Library Association accredited lib...

R. B. Eggleton

1972-01-01

306

All-Sky Imaging Search for Transients with the Long Wavelength Demonstrator Array  

NASA Astrophysics Data System (ADS)

The Long Wavelength Demonstrator Array (LWDA) is a prototype 16 element low frequency, phased dipole array. It operates between 60-80 MHz with an instantaneous bandwidth of 1.6 MHz. The system allows cross correlation of each of the 120 pairs of antennas. Dual orthogonal linear polarizations are received and the electronics are capable of digital delay beamforming with two fully-independent beams, as well as all-sky imaging. The LWDA hardware installation was completed in late October 2006, and the instrument successfully achieved first light. The operational system is currently engaged in scientific observations including all-sky surveying for bright continuum transient radio emission, as well as targeted observations of pulsars. The LWDA has observed several solar bursts and should also be sensitive to giant pulses from the Crab pulsar. We describe the current status of the transient detection pipeline and present results from the first year of all-sky monitoring. Initial data were taken in 50 ms snapshots at 74 MHz every 5 minutes. Bright sources such as Cygnus A, Cassiopeia A, the Galactic Plane, and the Sun are clearly visible, but cannot be accurately modeled given the irregular time sampling and sensitivity variations across the primary beam. These sources were masked for the transient search. Additionally, an instrumental issue led to flagging high amplitude data with phase near zero; thus we are not sensitive to transients directly overhead or near the masked sources. We reach a sensitivity of 400 Jy/bm over the remaining sky. More regular sampling has been implemented and will allow us to build up a standard "Sky model" which varies with time over the day. By comparing new data to this standard we will be able to search for transients over the whole sky. Basic research in radio astronomy at the Naval Research Laboratory is supported by 6.1 base funding.

Clarke, Tracy E.; Lane, W.; Lazio, T. J.; Gross, C.; Ray, P. S.; Wood, D.; York, J.

2007-12-01

307

Electronic biomedical literature search for budding researcher.  

PubMed

Search for specific and well defined literature related to subject of interest is the foremost step in research. When we are familiar with topic or subject then we can frame appropriate research question. Appropriate research question is the basis for study objectives and hypothesis. The Internet provides a quick access to an overabundance of the medical literature, in the form of primary, secondary and tertiary literature. It is accessible through journals, databases, dictionaries, textbooks, indexes, and e-journals, thereby allowing access to more varied, individualised, and systematic educational opportunities. Web search engine is a tool designed to search for information on the World Wide Web, which may be in the form of web pages, images, information, and other types of files. Search engines for internet-based search of medical literature include Google, Google scholar, Scirus, Yahoo search engine, etc., and databases include MEDLINE, PubMed, MEDLARS, etc. Several web-libraries (National library Medicine, Cochrane, Web of Science, Medical matrix, Emory libraries) have been developed as meta-sites, providing useful links to health resources globally. A researcher must keep in mind the strengths and limitations of a particular search engine/database while searching for a particular type of data. Knowledge about types of literature, levels of evidence, and detail about features of search engine as available, user interface, ease of access, reputable content, and period of time covered allow their optimal use and maximal utility in the field of medicine. Literature search is a dynamic and interactive process; there is no one way to conduct a search and there are many variables involved. It is suggested that a systematic search of literature that uses available electronic resource effectively, is more likely to produce quality research. PMID:24179937

Thakre, Subhash B; Thakre S, Sushama S; Thakre, Amol D

2013-09-01

308

Search and retrieval of medical images for improved diagnosis of neurodegenerative diseases  

NASA Astrophysics Data System (ADS)

In the medical world, the accuracy of diagnosis is mainly affected by either lack of sufficient understanding of some diseases or the inter-, and/or intra-observer variability of the diagnoses. The former requires understanding the progress of diseases at much earlier stages, extraction of important information from ever growing amounts of data, and finally finding correlations with certain features and complications that will illuminate the disease progression. The latter (inter-, and intra- observer variability) is caused by the differences in the experience levels of different medical experts (inter-observer variability) or by mental and physical tiredness of one expert (intra-observer variability). We believe that the use of large databases can help improve the current status of disease understanding and decision making. By comparing large number of patients, some of the otherwise hidden relations can be revealed that results in better understanding, patients with similar complications can be found, the diagnosis and treatment can be compared so that the medical expert can make a better diagnosis. To this effect, this paper introduces a search and retrieval system for brain MR databases and shows that brain iron accumulation shape provides additional information to the shape-insensitive features, such as the total brain iron load, that are commonly used in the clinics. We propose to use Kendall's correlation value to automatically compare various returns to a query. We also describe a fully automated and fast brain MR image analysis system to detect degenerative iron accumulation in brain, as it is the case in Alzheimer's and Parkinson's. The system is composed of several novel image processing algorithms and has been extensively tested in Leiden University Medical Center over so far more than 600 patients.

Ekin, Ahmet; Jasinschi, Radu; Turan, Erman; Engbers, Rene; van der Grond, Jeroen; van Buchem, Mark A.

2007-01-01

309

MetaSEEk: A Content-Based Meta-Search Engine for Images  

Microsoft Academic Search

Search engines are the most powerful resources for finding information on the rapidly expanding World Wide Web (WWW). Finding the desired search engines and learning how to use them, however, can be very time consuming. The integration of such search tools enables the users to access information across the world in a transparent and efficient manner. These systems are called

Mandis Beigi; Ana B. Benitez; Shih-Fu Chang

1997-01-01

310

Design and implementation of a real-time image registration in an infrared search and track system  

NASA Astrophysics Data System (ADS)

In order to realize the fast search and tracking of ground dim target under the movement condition of infrared detector, an infrared image registration method is proposed based on phase correlation registration and the feature point registration, which can make the infrared image motion compensation come true. After using the phase correlation registration for rough registration in movement infrared images, the high precision registration was realized by the priori information of the feature point image registration, which combined the features of phase correlation registration and feature point registration. Experimental results validate that the infrared image displacement information had been provided and the small detection rate and accuracy had been improved by the algorithm, which didn't reduce the registration accuracy in real-time IRST.

Xu, Fu-yuan; Gu, Guo-hua; Zhao, Tie-kun; Chen, Qian; Qian, Wei-xian

2013-02-01

311

NIAID Biodefense Image Library  

MedlinePLUS

... structure. Credit: R. John Collier, Harvard Medical School Salmonella Color-enhanced scanning electron micrograph showing Salmonella typhimurium (red) bacteria invading cultured human cells. Credit: ...

312

DEA Multimedia Drug Library: Marijuana  

MedlinePLUS

... DEA Press Room » Multi-Media Library » Image Gallery » Marijuana MARIJUANA To Save Images: First click on the thumbnail ... Save in directory and then click Save. Indoor Marijuana Grow Indoor Marijuana Grow Loose Marijuana Marinol 10mg ...

313

OBN (Open Library Network) Final Report: From Project to Library User.  

ERIC Educational Resources Information Center

The Open Library Network (OBN) is intended to connect national and local university library systems in the Netherlands. OBN integrates existing automated library systems and procedures and brings services like catalog searching and document delivery to the desk of the library user. Project results can be grouped into four categories: (1) the new…

Pica, Leiden (Netherlands).

314

Developments in Health Sciences Libraries since 1974: From Physical Entity to the Virtual Library.  

ERIC Educational Resources Information Center

Provides an overview of developments in health sciences libraries leading to the virtual library. Highlights include online searching; integrated library systems; networked resources; the expansion of interlibrary loans and document delivery systems; the Integrated Academic Information Management System; and the role of the National Library of…

Weise, Frieda O.

1993-01-01

315

Internet Library of Early Journals (ILEJ)  

NSDL National Science Digital Library

ILEJ is a joint project by the Universities of Birmingham, Leeds, Manchester and Oxford, conducted under the auspice of the eLib (Electronic Libraries) Programme (discussed in the Scout Report for September 20, 1996). The project has digitized selected twenty-year runs of three eighteenth- and three nineteenth-century journals and placed the images online at the site. Journals include: Annual Register (1758-78), Gentleman's Magazine (1731-50), Philosophical Transactions of the Royal Society (1757-77), Blackwood's Edinburgh Magazine (1843-52), Notes and Queries (1849-69), and The Builder (1843-9). Users can browse the journals by volume and section, conduct a standard search, or try a "fuzzy search" (limited availability). The project has considerable potential for scholars and students of British history and literature, although slow loading image pages may make it more useful as an online index to these journals.

316

Kohler Art Library: The Artists' Book Collection.  

NSDL National Science Digital Library

The Kohler Art Library at University of Wisconsin-Madison presents this illustrated database that indexes roughly 760 titles from its collection of over 800 artists' books. The database can be searched by book title, creator's name, publisher, date, or subjects. Other search terms relate to types of book structures, bindings, medium/technique, and contributors. Each record in the database has either a short description of the book's contents or a complete transcription of the colophon, the short paragraph traditionally placed at the end of a book, that tells about its production. In addition, for slightly more than half the books, several images are included. For example, the colophon for From a housewife's diary, by Claire Van Vliet, states that the "covering is dish towels bound by James Bicknell", and the image included shows that the towels are red plaid.

317

Scattering and Absorption Properties of Porous Dust Grains: A Library for Modeling the HST Optical and near-Infrared Scattered Light Images of Protopl  

NASA Astrophysics Data System (ADS)

We propose a theoretical program to calculate the scattering and absorption properties of porous dust grains grown by coagulation in protoplanetary disks, using the powerful discrete dipole approximation code DDSCAT which can accurately calculate the scattering properties of porous aggregates. This program will create a web-based library of scattering and absorption cross sections, and albedos, asymmetry parameters and phase functions for porous dust as a function of grain size, porosity and wavelength. This library will be made publicly available via the WWW at http://www.missouri.edu/~lia/. These scattering parameters are essential for interpreting the scattered light images of protoplanetary and debris disks in the visible and near-infrared wavelengths obtained with HST, allowing us to reliably determine the disk geometry and dust size distribution. The latter is of particular astrophysical significance since it can tell us whether grain growth -- the first stage of planet formation -- has indeed occurred in protoplanetary disks.

Li, Aigen

2006-07-01

318

U. S. Geological Survey Library  

NSDL National Science Digital Library

The United States Geological Survey (USGS) Library is the largest earth science library in the world. The library serves the research needs of USGS scientists throughout the nation and provides information to other organizations and individuals in the areas of geology, hydrology, cartography, biology, and related fields. USGS libraries are located in Reston, Virginia, Denver, Colorado, Menlo Park, California, and Flagstaff, Arizona. Some of the library holdings are available on-line, while others can be purchased from USGS, ordered via an interlibrary loan, or attained from one of the four library locations directly. The library home page provides links to search engines for USGS publications, photographs, maps, etc. Users can search various databases to find what they need. These databases include: the Geographic Names Information System database, the Minerals Information Collection, the National Geologic Map Database, and a database of purchased journals held by the library. Users can also search the library's catalog, and can post questions to a librarian via the Ask a Librarian link.

319

Google Scholar vs. Library Scholar  

Microsoft Academic Search

How does the content of Google Scholar, a.k.a. “Schoogle,” compare to that of subscription databases and the library catalog? Five sample research topics indigenous to undergraduate libraries were searched in Google Scholar, the College of Charleston online catalog, EBSCO's Academic Search Premier database, and a subject-specific subscription database. Points of consideration included document type, availability of full-text materials, local availability

Burton Callicott; Debbie Vaughn

2005-01-01

320

Subband domain coding of binary textual images for document archiving  

Microsoft Academic Search

In this work, a subband domain textual image compression method is developed. The document image is first decomposed into subimages using binary subband decompositions. Next, the character locations in the subbands and the symbol library consisting of the character images are encoded. The method is suitable for keyword search in the compressed data. It is observed that very high compression

Ömer Nezih Gerek; A. Enis Çetin; Ahmed H. Tewfik; Volkan Atalay

1999-01-01

321

Antibody libraries  

US Patent & Trademark Office Database

The present invention relates to the production of antibody libraries. In particular, the present invention relates to the use of integrating retroviral vectors to generate libraries comprising a plurality of combinations of antibody light chains and heavy chains. The present invention thus provides improved methods of generating and screening antibody libraries comprising large numbers of unique antibodies.

2012-07-17

322

Digital South Asia Library  

NSDL National Science Digital Library

A project of the Center for Research Libraries with financial and other support from multiple sources, the Digital South Asia Library will likely become a major online resource for South Asia scholars. The site is very much still under development, but there are some resources available. These include pedagogical tools, photos and images, statistics, some bibliographies, electronic books, and some related links. Anyone who studies South Asia will want to bookmark this site and monitor its development.

Digital South Asia Library (U.S.)

323

A generative model for OCT retinal layer segmentation by integrating graph-based multi-surface searching and image registration.  

PubMed

We proposed a generative probabilistic modeling framework for automated segmentation of retinal layers from Optical Coherence Tomography (OCT) data. The objective is to learn a segmentation protocol from a collection of training images that have been manually labeled. Our model results in a novel OCT retinal layer segmentation approach which integrates algorithms of simultaneous searching of multiple interacting layer interfaces, image registration and machine learning. Different from previous work, our approach combines the benefits of constraining spatial layout of retinal layers, using a set of more robust local image descriptors, employing a mechanism for learning from manual labels and incorporating the inter-subject anatomical similarities of retina. With a set of OCT volumetric images from mutant canine retinas, we experimentally validated that our approach outperforms two state-of-the-art techniques. PMID:24505695

Zheng, Yuanjie; Xiao, Rui; Wang, Yan; Gee, James C

2013-01-01

324

Digital Image Access Project  

NSDL National Science Digital Library

The Duke University Rare Book, Manuscript, and Special Collections Library has made this image base of 1,000 images depicting urban life at various time periods, primarily in the American South, available. The images are drawn from fourteen separate collections; they can be browsed and searched. Included with the images are descriptive summaries, scope and content notes, and subject terms for each collection. Among the interesting non-Southern images are the William Gedney documentary photograph collection and the Philippine Island and Far East Photograph Albums, ca. 1899-1902.

325

Ground-based exoplanet near-infrared search by imaging and spectroscopy: 3 new companion candidates in TWA  

Microsoft Academic Search

We report first results from our ground-based infrared imaging search for sub-stellar companions (brown dwarfs and giant planets) of young (up to 100 Myrs) nearby (up to 100 pc) stars, where companions should be well separated from the central stars and still relatively bright due to ongoing accretion and\\/or contraction. Our observations are performed mainly with SOFI and SHARP at

Ralph Neuhaeuser; Nuria Huelamo; Eike W. Guenther; Wolfgang Brandner; Joao Alves; Fernando Comeron; Monika G. Petr; Jean-Gabriel Cuby

2001-01-01

326

Adaptive similarity search in large databases - application to image\\/video copy detection  

Microsoft Academic Search

This paper addresses the problem of similarity searches within large databases of multimedia documents. It proposes an adaptive and parameter-free method for automatic decision making during the final step of the similarity search. This method computes the minimum number of features that have to be shared by two documents to be considered as similar. It is based on a probabilistic

Nicolas Gengembre; Sid-Ahmed Berrani; Patrick Lechat

2008-01-01

327

Meta Search Engine for Searching Multiple Human Rights Sites  

NSDL National Science Digital Library

Recently unveiled by the Human Rights Library of the University of Minnesota (originally reviewed in the January 5, 1996 Scout Report), this new search engine will be welcomed by researchers and activists in human rights. Searchable by keyword and several optional operators (Boolean, proximity, truncation), the engine retrieves data from any or all of the 23 different rights-related sites that users select. Interestingly, returns are presented "as is" from the source pages (with page header, images, and unique formats) but combined into a single results page. A test search for "Northern Ireland" on four selected sites returned over 40 results. Direct links to the featured databases and, in some cases, their search tips pages are also provided.

328

Closing the loop in cortically-coupled computer vision: a brain-computer interface for searching image databases  

NASA Astrophysics Data System (ADS)

We describe a closed-loop brain-computer interface that re-ranks an image database by iterating between user generated 'interest' scores and computer vision generated visual similarity measures. The interest scores are based on decoding the electroencephalographic (EEG) correlates of target detection, attentional shifts and self-monitoring processes, which result from the user paying attention to target images interspersed in rapid serial visual presentation (RSVP) sequences. The highest scored images are passed to a semi-supervised computer vision system that reorganizes the image database accordingly, using a graph-based representation that captures visual similarity between images. The system can either query the user for more information, by adaptively resampling the database to create additional RSVP sequences, or it can converge to a 'done' state. The done state includes a final ranking of the image database and also a 'guess' of the user's chosen category of interest. We find that the closed-loop system's re-rankings can substantially expedite database searches for target image categories chosen by the subjects. Furthermore, better reorganizations are achieved than by relying on EEG interest rankings alone, or if the system were simply run in an open loop format without adaptive resampling.

Pohlmeyer, Eric A.; Wang, Jun; Jangraw, David C.; Lou, Bin; Chang, Shih-Fu; Sajda, Paul

2011-06-01

329

New library buildings: the Health Sciences Library, Memorial University of Newfoundland, St. John's.  

PubMed Central

The new Health Sciences Library of Memorial University of Newfoundland is described and illustrated. A library facility that forms part of a larger health sciences center, this is a medium-sized academic health sciences library built on a single level. Along with a physical description of the library and its features, the concepts of single-level libraries, phased occupancy, and the project management approach to building a large health center library are discussed in detail. Images

Fredericksen, R B

1979-01-01

330

The ILS--The Pentagon Library's Experience.  

ERIC Educational Resources Information Center

Describes implementation of five subsystems of Integrated Library System's (ILS) version 2.1 (minicomputer-based automated library system) at the Pentagon Library: online catalog (search strategies, user acceptance); bibliographic subsystems (cataloging, retrospective conversion); circulation; serials check-in; administrative subsystem (report…

Mullane, Ruth

1984-01-01

331

Life After Press: The Role of the Picture Library in Communicating Astronomy to the Public  

NASA Astrophysics Data System (ADS)

Science communication is increasingly led by the image, providing opportunities for 'visual' disciplines such as astronomy to receive greater public exposure. In consequence, there is a huge demand for good and exciting images within the publishing media. The picture library is a conduit linking image makers of all kinds to image buyers of all kinds. The image maker benefits from the exposure of their pictures to the people who want to use them, with minimal time investment, and with the safeguards of effective rights management. The image buyer benefits from a wide choice of images available from a single point of contact, stored in a database that offers a choice between subject-based and conceptual searches. By forming this link between astronomer, professional or amateur, and the publishing media, the picture library helps to make the wonders of astronomy visible to a wider public audience.

Evans, G. S.

2005-12-01

332

Robust coastal region detection method using image segmentation and sensor LOS information for infrared search and track  

NASA Astrophysics Data System (ADS)

This paper presents a novel coastal region detection method for infrared search and track. The coastal region detection is critical to home land security and ship defense. Detected coastal region information can be used to the design of target detector such as moving target detection and threshold setting. We can detect coastal regions robustly by combining the infrared image segmentation and sensor line-of-sight (LOS) information. The K-means-based image segmentation can provide initial region information and the sensor LOS information can predict the approximate horizon location in images. The evidence of coastal region is confirmed by contour extraction results. The experimental results on remote coasts and near coasts validate the robustness of the proposed coastal region detector.

Kim, Sungho; Sun, Sun-Gu; Kwon, Soon; Kim, Kyung-Tae

2013-05-01

333

Single-Molecule Imaging of DNA Pairing by RecA Reveals a 3-Dimensional Homology Search  

PubMed Central

DNA breaks can be repaired with high-fidelity by homologous recombination. A ubiquitous protein that is essential for this DNA template-directed repair is RecA1. After resection of broken DNA to produce single-stranded DNA (ssDNA), RecA assembles on this ssDNA into a filament with the unique capacity to search and find DNA sequences in double-stranded DNA (dsDNA) that are homologous to the ssDNA. This homology search is vital to recombinational DNA repair, and results in homologous pairing and exchange of DNA strands. Homologous pairing involves DNA sequence-specific target location by the RecA-ssDNA complex. Despite decades of study, the mechanism of this enigmatic search process remains unknown. RecA is a DNA-dependent ATPase, but ATP hydrolysis is not required for DNA pairing and strand exchange2,3, eliminating active search processes. Using dual optical trapping to manipulate DNA, and single-molecule fluorescence microscopy to image DNA pairing, we demonstrate that both the three-dimensional conformational state of the dsDNA target and the length of the homologous RecA-ssDNA filament play important roles in the homology search. We discovered that as the end-to-end distance of the target dsDNA molecule is increased, constraining its available 3-dimensional conformations, the rate of homologous pairing decreases. Conversely, when the length of the ssDNA in the nucleoprotein filament is increased, homology is found faster. We propose a model for the DNA homology search process termed “intersegmental contact sampling”, wherein the intrinsic multivalent nature of the RecA nucleoprotein filament is employed to search DNA sequence space within 3-dimensional domains of DNA, exploiting multiple weak contacts to rapidly search for homology. Our findings highlight the importance of the 3-dimensional conformational dynamics of DNA, reveal a previously unknown facet of the homology search, and provide insight into the mechanism of DNA target location by this member of a universal family of proteins.

Forget, Anthony L.; Kowalczykowski, Stephen C.

2011-01-01

334

Terrain Categorization Using a Background Spectral Library.  

National Technical Information Service (NTIS)

We describe development of a background spectral library for northeastern Virginia, USA, based on hyperspectral images and an extensive land cover database. The library consists of mean spectra and standard deviations measured in 14 areas of uniform land ...

T. Cooley J. Cipar R. Lockwood P. Grigsby

2002-01-01

335

DEA Multi-Media Drug Library  

MedlinePLUS

... News Releases Speeches and Testimony Major Operations Multi-Media Library Micrograms Legislative & Legal Resources Events ESPAÑOL Contáctenos ... confidencial Liderazgo de la DEA Press Room » Multi-Media Library IMAGE GALLERY Drug Photos Amphetamines/Stimulants Khat ...

336

The library as a reference tool: online catalogs  

USGS Publications Warehouse

Online catalogs are computerized listings of materials in a particular library or group of libraries. General characteristics of online catalogs include ability for searching interactively and for locating descriptions of books, maps, and reports on regional or topical geology. Suggestions for searching, evaluating results, modifying searches, and limitations of searching are presented. -Author

Stark, M.

1991-01-01

337

Generalizing the OpenURL Framework beyond References to Scholarly Works: The Bison-Fute Model; Digital Libraries and Education: Trends and Opportunities; E-Books and Their Future in Academic Libraries: An Overview; Penn State Visual Image User Study.  

ERIC Educational Resources Information Center

Includes four articles that discuss a conceptual framework for open and context-sensitive reference linking for Web-based scholarly information; issues for academic libraries due to increased use of information and communication technologies; the future of electronic books in academic libraries; and an academic library user study on the needs for…

Van de Sompel, Herbert; Beit-Arie, Oren; Roes, Hans; Snowhill, Lucia; Pisciotta, Henry; Brisson, Roger; Ferrin, Eric; Dooris, Michael; Spink, Amanda

2001-01-01

338

New library buildings. Part VI: Sciences Library, Brown University.  

PubMed Central

Brown was one of the first universities in the nation to combine its science collections into a single library in the interest of aiding interdisciplinary teaching and research. This paper discusses the evolution of the Sciences Library and its resources, the development of the medical education program, and the physical aspects of the new library building. A fifteen-story tower, housing the collections of the physical, biological, and medical sciences, symbolizes the interdisciplinary approach to teaching and research at Brown University. Images

Carson, J R; Bobick, J E

1976-01-01

339

Libraries program  

USGS Publications Warehouse

The U.S. Congress authorized a library for the U.S. Geological Survey (USGS) in 1879. The library was formally established in 1882 with the naming of the first librarian and began with a staff of three and a collection of 1,400 books. Today, the USGS Libraries Program is one of the world's largest Earth and natural science repositories and a resource of national significance used by researchers and the public worldwide.

2011-01-01

340

Tomorrow's library.  

PubMed

The buildings in which we house libraries are like other special purpose structures; the needs they fill are significantly influenced by technology. A prime function of the library building is to house collections (of people, material, and systems) as well as collections of collections (networks). Electronic formats for library material offer new approaches to information service delivery. An example, the information access station, typifies how traditional functions can be reconfigured with respect to space. Flexible design can help ensure that tomorrow's libraries meet the users' needs, but we need to question all our assumptions about building design including those driven by our understanding of the browsing process. PMID:7842657

Penniman, W D

1994-09-01

341

Efficiency image data retrieval based on asynchronous capability aware spatial search service middleware  

NASA Astrophysics Data System (ADS)

Recent advances in open geospatial web service, such as Web Coverage Service as well as corresponding web ready data processing service, have led to the generation of large amounts of OGC enabled links on Internet. Recently a few search engines that are specialised with respect to geographic space have appeared. However, users do not always get the effective OGC WCS link information they expect when searching the Web. How to quickly find the correct spatial aware web service in a heterogeneous distributed environment has become a "bottleneck" of geospatial web-based applications. In order to improve the retrieval efficiency of OGC Web Coverage Service (WCS) on WWW, a new methodology for retrieving WCS based on clustering capability aware spatial search service middleware is put forward in this paper.

Chen, Nengcheng; Chen, Zeqiang; Gong, Jianya

2007-11-01

342

British Library Labs  

NSDL National Science Digital Library

Funded by the Andrew W. Mellon Foundation, the British Library Labs offer up interactive digital collections and apps based on the holdings of this remarkable library. First-time visitors can navigate to the left-hand side of the page to look over datasets, maps, images, sounds, and multimedia materials. Within Digital Collections, the Images area features the Endangered Archives Programme (EAP), which is concerned with the preservation of archival material in danger of destruction, neglect, or physical deterioration world-wide. Visitors can look through four different collections in the Music area, including Early Music Online which features over 320 volumes of 16th-century music from the British Library. Users can also look over the Digital Scholarship Blog that offers up thoughtful meditations on the Labsâ ongoing activities and projects.

343

Library Advocacy  

ERIC Educational Resources Information Center

This paper is about the issue of advocacy. Standing at the vanguard of literacy, library media specialists have a unique role. However, it is time for media specialists to advocate their services in a proactive way. If library media specialists cannot, both individually and collectively, put advocacy at the forefront, then students will suffer the…

Plunkett, Kate

2010-01-01

344

Privatizing Libraries  

ERIC Educational Resources Information Center

This timely special report from ALA Editions provides a succinct but comprehensive overview of the "privatization" of public libraries. It provides a history of the trend of local and state governments privatizing public services and assets, and then examines the history of public library privatization right up to the California legislation…

Jerrard, Jane; Bolt, Nancy; Strege, Karen

2012-01-01

345

Library Legislation.  

ERIC Educational Resources Information Center

Examination of several library legislation models developed to meet the needs of developed and developing nations reveals that our traditional notion of the library's role in society must be abandoned if we wish to reconcile its benefits to its costs. Four models currently exist: many nations, particularly Asian, have no legislation; most nations,…

Kavass, Igor

346

Library Legislation.  

National Technical Information Service (NTIS)

Examination of several library legislation models developed to meet the needs of developed and developing nations reveals that our traditional notion of the library's role in society must be abandoned if we wish to reconcile its benefits to its costs. Fou...

I. Kavass

1979-01-01

347

Macintoshed Libraries.  

ERIC Educational Resources Information Center

Contributed by librarians from public, academic, school, and special libraries, the 17 essays in this collection describe ways in which the Apple Macintosh is used in their libraries: (1) "Workstations and the Apple Macintosh" (Edward J. Valauskas); (2) "The Macintosh Experience at Chesapeake College" (Liz Cooper); (3) "ANSEL Character Set for the…

Valauskas, Edward J., Ed.; John, Nancy R., Ed.

348

Searching Online Journals for Fluorescence Microscope Images Depicting Protein Subcellular Location Patterns  

Microsoft Academic Search

There is extensive interest in automating the collection, organization and analysis of biological data. Data in the form of images present special challenges for such efforts. Since fluorescence microscope images are a primary source of information about the location of proteins within cells, we have set as a long-term goal the building of a knowledge base system that can interpret

Robert F. Murphy; Meel Velliste; Jie Yao; Gregory Porreca

2001-01-01

349

Searching for a Needle in a Haystack, Extracting valuable Information from Raman Chemical Images  

NASA Astrophysics Data System (ADS)

Using advanced post processing tool to extract valuable information from large Raman chemical images. The chemical images may contain hundreds of spectra and can be cumbersome to fully analyze. Advanced techniques can reveal valuable information such as specific identification and location for heterogeneous microscopic samples.

Guillory-Gardner, Paulette

2010-08-01

350

Nuclear magnetic resonance imaging. (Latest citations from the US Patent database). Published Search  

SciTech Connect

The bibliography contains citations of selected patents concerning imaging systems and components used in nuclear magnetic resonance (NMR) devices. Data acquisition methods and applications in fluid flow are presented. Magnet systems used in the imaging process are briefly cited. (Contains a minimum of 159 citations and includes a subject term index and title list.)

Not Available

1993-01-01

351

Segmentation of range images as the search for geometric parametric models  

Microsoft Academic Search

Segmentation of range images has long been considered in computer vision as an important but extremely difficult problem. In this paper we present a new paradigm for the segmentation of range images into piecewise continuous surfaces. Data aggregation is performed via model recovery in terms of variable-order bi-variate polynomials using iterative regression. Model recovery is initiated independently in regularly placed

Ales Leonardis; Alok Gupta; Ruzena Bajcsy

1995-01-01

352

Searching for molecular markers in head and neck squamous cell carcinomas (HNSCC) by statistical and bioinformatic analysis of larynx-derived SAGE libraries  

PubMed Central

Background Head and neck squamous cell carcinoma (HNSCC) is one of the most common malignancies in humans. The average 5-year survival rate is one of the lowest among aggressive cancers, showing no significant improvement in recent years. When detected early, HNSCC has a good prognosis, but most patients present metastatic disease at the time of diagnosis, which significantly reduces survival rate. Despite extensive research, no molecular markers are currently available for diagnostic or prognostic purposes. Methods Aiming to identify differentially-expressed genes involved in laryngeal squamous cell carcinoma (LSCC) development and progression, we generated individual Serial Analysis of Gene Expression (SAGE) libraries from a metastatic and non-metastatic larynx carcinoma, as well as from a normal larynx mucosa sample. Approximately 54,000 unique tags were sequenced in three libraries. Results Statistical data analysis identified a subset of 1,216 differentially expressed tags between tumor and normal libraries, and 894 differentially expressed tags between metastatic and non-metastatic carcinomas. Three genes displaying differential regulation, one down-regulated (KRT31) and two up-regulated (BST2, MFAP2), as well as one with a non-significant differential expression pattern (GNA15) in our SAGE data were selected for real-time polymerase chain reaction (PCR) in a set of HNSCC samples. Consistent with our statistical analysis, quantitative PCR confirmed the upregulation of BST2 and MFAP2 and the downregulation of KRT31 when samples of HNSCC were compared to tumor-free surgical margins. As expected, GNA15 presented a non-significant differential expression pattern when tumor samples were compared to normal tissues. Conclusion To the best of our knowledge, this is the first study reporting SAGE data in head and neck squamous cell tumors. Statistical analysis was effective in identifying differentially expressed genes reportedly involved in cancer development. The differential expression of a subset of genes was confirmed in additional larynx carcinoma samples and in carcinomas from a distinct head and neck subsite. This result suggests the existence of potential common biomarkers for prognosis and targeted-therapy development in this heterogeneous type of tumor.

Silveira, Nelson JF; Varuzza, Leonardo; Machado-Lima, Ariane; Lauretto, Marcelo S; Pinheiro, Daniel G; Rodrigues, Rodrigo V; Severino, Patricia; Nobrega, Francisco G; Silva, Wilson A; de B Pereira, Carlos A; Tajara, Eloiza H

2008-01-01

353

America's Star Libraries: Top-Rated Libraries  

ERIC Educational Resources Information Center

"Library Journal"'s national rating of public libraries, the "LJ" Index of Public Library Service 2009, Round 2, identifies 258 "star" libraries. Created by Keith Curry Lance and Ray Lyons and based on 2007 data from the IMLS, it rates 7,268 public libraries. The top libraries in each group get five, four, or three stars. All included libraries,…

Lance, Keith Curry; Lyons, Ray

2009-01-01

354

Western Waters Digital Library  

NSDL National Science Digital Library

From the earliest European explorers to the time of modern engineers and hydrologists, the vast reserves of water within the Western United States have been the cause of both great excitement and concern. This compelling digital library brings together a wide range of documents (including legal transcripts, water project records, and personal papers) that document the Columbia, Colorado, Platte, and Rio Grande river basins. The project was completed with support from the Institute of Museum and Library Services and twelve university libraries in eight western states. On the homepage, visitors can perform advanced searches, or just elect to browse through the available materials. Browsing is a good option actually, as all of the materials are contained with one of four sections: subject, people, places, and signature collections. The signature collections are a real find, and visitors can look over troves that include "Native American Water Rights in Arizona", "The Platte River Basin in Nebraska", and "Las Vegas: Water in the West".

2004-01-01

355

Kuhlthau's Information Search Process.  

ERIC Educational Resources Information Center

Explains Kuhlthau's Information Search Process (ISP) model which is based on a constructivist view of learning and provides a framework for school library media specialists for the design of information services and instruction. Highlights include a shift from library skills to information skills; attitudes; process approach; and an interview with…

Shannon, Donna

2002-01-01

356

Enterprise Reference Library  

NASA Technical Reports Server (NTRS)

Introduction: Johnson Space Center (JSC) offers two extensive libraries that contain journals, research literature and electronic resources. Searching capabilities are available to those individuals residing onsite or through a librarian s search. Many individuals have rich collections of references, but no mechanisms to share reference libraries across researchers, projects, or directorates exist. Likewise, information regarding which references are provided to which individuals is not available, resulting in duplicate requests, redundant labor costs and associated copying fees. In addition, this tends to limit collaboration between colleagues and promotes the establishment of individual, unshared silos of information The Integrated Medical Model (IMM) team has utilized a centralized reference management tool during the development, test, and operational phases of this project. The Enterprise Reference Library project expands the capabilities developed for IMM to address the above issues and enhance collaboration across JSC. Method: After significant market analysis for a multi-user reference management tool, no available commercial tool was found to meet this need, so a software program was built around a commercial tool, Reference Manager 12 by The Thomson Corporation. A use case approach guided the requirements development phase. The premise of the design is that individuals use their own reference management software and export to SharePoint when their library is incorporated into the Enterprise Reference Library. This results in a searchable user-specific library application. An accompanying share folder will warehouse the electronic full-text articles, which allows the global user community to access full -text articles. Discussion: An enterprise reference library solution can provide a multidisciplinary collection of full text articles. This approach improves efficiency in obtaining and storing reference material while greatly reducing labor, purchasing and duplication costs. Most importantly, increasing collaboration across research groups provides unprecedented access to information relevant to NASA s mission. Conclusion: This project is an expansion and cost-effective leveraging of the existing JSC centralized library. Adding key word and author search capabilities and an alert function for notifications about new articles, based on users profiles, represent examples of future enhancements.

Bickham, Grandin; Saile, Lynn; Havelka, Jacque; Fitts, Mary

2011-01-01

357

Facsimile Transmission Use in Libraries.  

ERIC Educational Resources Information Center

Facsimile is an electro-mechanical system for transmitting and receiving images. Libraries began to take an active interest in using facsimile equipment in the latter part of the 1960s. Since that time, telefacsimile has been used by libraries primarily as a method of reducing document delivery time between cooperating interlending institutions.…

Ryan, Joe

358

3D range imaging for urban search and rescue robotics research  

Microsoft Academic Search

Urban search and rescue (USAR) operations can be extremely dangerous for human rescuers during disaster response. Human task forces carrying necessary tools and equipment and having the required skills and techniques, are deployed for the rescue of victims of structural collapse. Instead of sending human rescuers into such dangerous structures, it is hoped that robots will one day meet the

Roger Bostelman; Tsai Hong; Raj Madhavan; Brian Weiss

2005-01-01

359

Impacts of geographical knowledge, spatial ability and environmental cognition on image searches supported by GIS software  

Microsoft Academic Search

Google Earth search function was used to study the impacts of small-scale spatial ability, large-scale environmental cognition, and geographical knowledge on new technology usage. The participants were 153 junior high students from central Taiwan. Geography grades served as indicators of prior knowledge, mental rotation and abstract reasoning skills as indicators of spatial ability, and sketch maps of school neighborhoods as

Pei-Lan Lei; Gloria Yi-Ming Kao; Sunny S. J. Lin; Chuen-Tsai Sun

2009-01-01

360

Petrucci Music Library  

NSDL National Science Digital Library

The Petrucci Music Library is an essential database for musicians, music librarians and teachers, as well as lovers of classical music. The online collection shares public domain music via a searchable interface. On the main page, visitors may search for works by composer (or composer's nationality), genre, time period, or melody. Searching by melody is particularly interesting, as it launches an interactive keyboard on which users may play (or, for those of us less musically inclined, attempt to play) a familiar melody in order to search the database for it. Some searches will yield YouTube clips of the music. The website also provides scans of sheet music from many composers, genres and world locations. [AHT

2012-12-05

361

NMNH Entomology Database Library  

NSDL National Science Digital Library

The Smithsonian's Department of Entomology database library offers 25 databases and bibliographies related to insects and entomology, collectively containing many thousands of records. The main page lists the databases available and describes most of them. The number of records indexed and available search options vary for each database or bibliography. Additional information on the Department of Entomology and its collections is available from the department's homepage.

1969-12-31

362

Searching for Linear Dependencies between Heart Magnetic Resonance Images and Lipid Profiles  

NASA Astrophysics Data System (ADS)

Information derived from "omics" data in life science research are frequently limited by specific spatial or temporal scales these data describe. As a case study of integrating physiological and molecular data in human, here we study associations between the heart magnetic resonance images and serum lipidomic profiles. In the best case, such associations could help infer the physiologic state of the heart from a blood serum sample without need to use expensive imaging techniques. Strong marginal and partial correlations are found between the lipid profiles and parameters derived from the heart images. Regression analyses are applied to study these dependencies in more detail. This study demonstrates the feasibility of mapping lipid profiles to heart images, and thus combining information from two very different scales, small molecules and macroscopic physiologic features. Such mappings could be generalized to other "omics" data as well to complete our picture of the holistic function of a living organism.

Sysi-Aho, Marko; Koikkalainen, Juha; Lötjönen, Jyrki; Seppänen-Laakso, Tuulikki; Söderlund, Hans; Heliö, Tiina; Oreši?, Matej

363

Hough Transform, (1+1) Search Strategy and Watershed Algorithm in Segmentation of Cytological Images  

Microsoft Academic Search

\\u000a This paper describes an early stage of cytological image recognition and presents a proposition of a hybrid segmentation method.\\u000a The analysis includes the Hough transform in conjunction with the watershed algorithm. One can also find here a short description\\u000a of image pre-processing and an automatic nuclei localization mechanism used in our approach. Preliminary experimental results\\u000a collected on a handprepared benchmark

Maciej Hrebien; Józef Korbicz; Andrzej Obuchowicz

2008-01-01

364

SPHERE IFS: the spectro differential imager of the VLT for exoplanets search  

Microsoft Academic Search

SPHERE is an exo-solar planet imager, which goal is to detect giant exo-solar planets in the vicinity of bright stars and to characterize them through spectroscopic and polarimetric observations. It is a complete system with a core made of an extreme-Adaptive Optics (AO) turbulence correction, pupil tracker and interferential coronagraphs. At its back end, a differential dual imaging camera and

R. U. Claudi; M. Turatto; R. G. Gratton; J. Antichi; M. Bonavita; P. Bruno; E. Cascone; V. De Caprio; S. Desidera; E. Giro; D. Mesa; S. Scuderi; K. Dohlen; J. L. Beuzit; P. Puget

2008-01-01

365

Real time imaging and infrared background scene analysis using the Naval Postgraduate School infrared search and target designation (NPS-IRSTD) system  

Microsoft Academic Search

The imaging in real time of infrared background scenes with the Naval Postgraduate School Infrared Search and Target Designation (NPS-IRSTD) System was achieved through extensive software developments in protected mode assembly language on an Intel 80386 33 MHz computer. The new software processes the 512 by 480 pixel images directly in the extended memory area of the computer where the

Jean D. Bernier

1991-01-01

366

Library Instruction Workbook. A Self-Directed Course in the Use of the NDSU Library.  

ERIC Educational Resources Information Center

This workbook in library skills is designed to acquaint students with the facilities and resources of the North Dakota State University Library. Each chapter includes a brief discussion of the topic and a worksheet. The following topics are covered: (1) library tour; (2) the online catalog; (3) term and subject searches using the online catalog;…

Hollenhorst, Kathryn A.

367

Efficient Solutions for Time-Consuming Jobs in the Library  

ERIC Educational Resources Information Center

Two of the most time-consuming jobs in the library are taking inventory and keeping track of in-house uses of library material. Librarians have long been searching for more efficient solution for these two activities. New technology can be the answer to creating efficiency for libraries. In fact, if one is a SirsiDynix library, there is an easy…

Bailey, Kieren

2011-01-01

368

The Gutenberg Bible: Digitised Images  

NSDL National Science Digital Library

The British Library has announced the online release of digital facsimiles of the two copies of the Gutenberg Bible in the library's possession, the paper King's Library copy and the vellum Grenville copy. Visitors can browse either or both copies side-by-side by selecting a Book of the Bible from the search page. Users are presented with a collection of thumbnails which link to an enlarged image and then finally a very large readable image. While this site is not quite as feature-rich as the Goettingen Gutenberg Bible (reviewed in the June 30, 2000 Scout Report), these are lovely copies, and the British Library is to be thanked for making them available to the world.

369

Evaluation of Diffusion-Tensor Imaging-Based Global Search and Tractography for Tumor Surgery Close to the Language System  

PubMed Central

Pre-operative planning and intra-operative guidance in neurosurgery require detailed information about the location of functional areas and their anatomo-functional connectivity. In particular, regarding the language system, post-operative deficits such as aphasia can be avoided. By combining functional magnetic resonance imaging and diffusion tensor imaging, the connectivity between functional areas can be reconstructed by tractography techniques that need to cope with limitations such as limited resolution and low anisotropic diffusion close to functional areas. Tumors pose particular challenges because of edema, displacement effects on brain tissue and infiltration of white matter. Under these conditions, standard fiber tracking methods reconstruct pathways of insufficient quality. Therefore, robust global or probabilistic approaches are required. In this study, two commonly used standard fiber tracking algorithms, streamline propagation and tensor deflection, were compared with a previously published global search, Gibbs tracking and a connection-oriented probabilistic tractography approach. All methods were applied to reconstruct neuronal pathways of the language system of patients undergoing brain tumor surgery, and control subjects. Connections between Broca and Wernicke areas via the arcuate fasciculus (AF) and the inferior fronto-occipital fasciculus (IFOF) were validated by a clinical expert to ensure anatomical feasibility, and compared using distance- and diffusion-based similarity metrics to evaluate their agreement on pathway locations. For both patients and controls, a strong agreement between all methods was observed regarding the location of the AF. In case of the IFOF however, standard fiber tracking and Gibbs tracking predominantly identified the inferior longitudinal fasciculus that plays a secondary role in semantic language processing. In contrast, global search resolved connections in almost every case via the IFOF which could be confirmed by probabilistic fiber tracking. The results show that regarding the language system, our global search is superior to clinically applied conventional fiber tracking strategies with results similar to time-consuming global or probabilistic approaches.

Richter, Mirco; Zolal, Amir; Ganslandt, Oliver; Buchfelder, Michael; Nimsky, Christopher; Merhof, Dorit

2013-01-01

370

The Library of Virginia: Confederate Disability Applications  

NSDL National Science Digital Library

The Library of Virginia (last discussed in the November 20, 1998 Scout Report) has added to their digital collections materials of interest to a variety of researchers in American or Virginia history. Now available are the Confederate Disability Applications and Receipts collection features over 24,000 images from applications by Civil War veterans for artificial limbs and other disability benefits. This recent addition consists of digitized documents placed in a database that is searchable by three options: word or phrase, combination, and expert/boolean. Search returns offer basic information on each record, and users must follow the link at the bottom of the page to download the digitized images (in .tif format) of the record. A generic TIFF viewer for Windows 3.11/95 may be downloaded for free at the site.

1999-01-01

371

Testing the Federated Searching Waters  

Microsoft Academic Search

The MetaLib Library Portal (MetaLib) is a federated search tool that enables simultaneous searching of multiple electronic resources in a single interface and provides links to resources' native interfaces. Many libraries have already implemented this library portal or various components of it. Prior to launching MetaLib at the University of Florida, the authors conducted a usability study to ensure MetaLib

Marilyn Ochoa; Rae Jesano; John R. Nemmers; Carrie Newsom; Maryellen Obrien; Paul Victor

2007-01-01

372

Folger Shakespeare Library  

NSDL National Science Digital Library

The Folger Shakespeare Library opened in 1932 as a gift to the United States from Henry Clay Folger and his wife Emily Jordan Folger. Located in Washington, DC, the Library continues to be administered by a board of governors from Amherst College, Mr. Folger's alma mater. As one might imagine, the site has a great deal to offer those looking for materials related to Shakespeare, and the "Discover Shakespeare" area is a good place to start in this regard. In this area, visitors can learn about Shakespeare's life, his works, and even view images from some of his rare folios held by the Library. Scholars and others will find that the "Use the Collection" area is invaluable as well. Here visitors can learn about fellowship programs offered by the Library, and more importantly, they can also browse through their digital collection, which contains over 20,000 images. These images include books, theater memorabilia, manuscripts, and letters. Finally, visitors can also sign up to receive electronic news updates and also learn about their upcoming theatrical productions.

373

Library Juice  

NSDL National Science Digital Library

Library Juice is a current awareness newsletter for librarians and other information professionals, published weekly by editor-librarian Rory Litwin. Each issue of Library Juice compiles recent news, articles, and announcements gleaned from a wide range of mailing lists related to librarianship, information science, intellectual freedom, and social responsibility. The Website posts the current issue of the newsletter and maintains an archive of all past issues.

1998-01-01

374

A Novel Passive Millimeter Imager for Broad-Area Search - Final Report on Project PL09-NPMI-PD07 (PNNL-55180)  

SciTech Connect

This report describes research and development efforts toward a novel passive millimeter-wave (mm-wave) electromagnetic imaging device for broad-area search. It addresses the technical challenge of detecting anomalies that occupy a small fraction of a pixel. The purpose of the imager is to pinpoint suspicious locations for cuing subsequent higher-resolution imaging. The technical basis for the approach is to exploit thermal and polarization anomalies that distinguish man-made features from natural features.

Tedeschi, Jonathan R.; Bernacki, Bruce E.; Kelly, James F.; Sheen, David M.; Harris, Robert V.; Hall, Thomas E.; Hatchell, Brian K.; Knopik, Clint D.; Lechelt, Wayne M.; McMakin, Douglas L.; Mendoza, Albert; Severtsen, Ronald H.; Valdez, Patrick LJ

2011-12-31

375

A Novel Passive Millimeter Imager for Broad-Area Search - Final Report on Project PL09-NPMI-PD07 (PNNL-55180)  

Microsoft Academic Search

This report describes research and development efforts toward a novel passive millimeter-wave (mm-wave) electromagnetic imaging device for broad-area search. It addresses the technical challenge of detecting anomalies that occupy a small fraction of a pixel. The purpose of the imager is to pinpoint suspicious locations for cuing subsequent higher-resolution imaging. The technical basis for the approach is to exploit thermal

Jonathan R. Tedeschi; Bruce E. Bernacki; James F. Kelly; David M. Sheen; Robert V. Harris; Thomas E. Hall; Brian K. Hatchell; Clint D. Knopik; Wayne M. Lechelt; Douglas L. McMakin; Albert Mendoza; Ronald H. Severtsen; Patrick LJ Valdez

2011-01-01

376

A Search for Lyman Break Galaxies at z>8 in the NICMOS Parallel Imaging Survey  

Microsoft Academic Search

We have selected 14 J-dropout Lyman break galaxy (LBG) candidates with J110-H160>=2.5 from the NICMOS Parallel Imaging Survey. This survey consists of 135 arcmin2 of imaging in 228 independent sight lines, reaching average 5 sigma sensitivities of J110=25.8 and H160=25.6 (AB). Distinguishing these candidates from dust-reddened star-forming galaxies at z~2-3 is difficult and will require longer wavelength observations. We consider

Alaina L. Henry; Matthew A. Malkan; James W. Colbert; Brian Siana; Harry I. Teplitz; Patrick McCarthy; Lin Yan

2007-01-01

377

A Library for Doing Polyhedral Operations  

Microsoft Academic Search

The design and implementation of a library of C-code procedures to perform operations on rational polyhedra is described. The library supports intersection, union, difference, simplification in context, convex hull, affine image, affine preimage, and computation of dual forms. Since not all of these functions are closed over polyhedra, the library is extended to operate on finite unions of polyhedra. The

DORAN K. WILDE

2000-01-01

378

Addressing Special Structure in the Relevance Feedback Learning Problem through Aspect-Based Image Search.  

National Technical Information Service (NTIS)

In this paper we focus on a number of issues regarding special structure in the relevance feedback learning problem, most notably the effects of image selection based on partial relevance on the clustering behavior of examples. We propose a simple scheme,...

M. J. Huiskes

2004-01-01

379

High contrast imaging: a new frontier for exoplanets search and characterization  

Microsoft Academic Search

Although very successful (more than 350 planets discovered up to now), indirect methods for extrasolar planet detection (Radial velocities, transits) are sensitive to planets quite close to their hosts. Moreover, accurate studies of the planet characteristics are feasible only for a subset of objects which are strongly irradiated by their parent stars. High contrast imaging will be the new frontier

M. Bonavita; R. U. Claudi; G. Tinetti; J. L. Beuzit; S. Desidera; R. Gratton; M. Kasper; C. Mordasini

2009-01-01

380

A comparative study of correspondence-search algorithms in MIS images.  

PubMed

The ability to find image similarities (feature matching) between laparoscopic views is essential in many robotic-assisted Minimally-Invasive Surgery (MIS) applications. Differently from feature tracking methods, feature matching does not make any restrictive assumption about the sequential nature of the two images or about the organ motion, and could then be used, e.g., to recover tracked features that were lost due to a prolonged occlusion, a sudden endoscopic-camera retraction, or a strong illumination change. This paper provides researchers in the medical-imaging computing community with an extensive comparison of the most up-to-date feature-matching algorithms over a large (and annotated) data set of 100 MIS-image pairs obtained from real interventions. The accuracy of these methods, as well as their ability to consistently retrieve as many good matches as possible, are evaluated for popular feature detectors. In addition, the dataset and the software implementations of these methods are made freely available on the Internet. PMID:23286101

Puerto, Gustavo A; Mariottini, Gian-Luca

2012-01-01

381

[The Presidential Libraries.  

ERIC Educational Resources Information Center

There are seven Presidential libraries in various states of existence, from quite active to proposed: (1) Franklin D. Roosevelt Library, (2) Harry S. Truman Library, (3) Herbert Hoover Library, (4) Dwight D. Eisenhower Library, (5) John F. Kennedy Memorial Library (6) Lyndon B. Johnson Library and (7) Rutherford B. Hayes Memorial Library. Each…

Webb, John

382

OCLC Online Computer Library Center  

NSDL National Science Digital Library

OCLC Online Computer Library Center is a nonprofit computer library service and research organization whose computer network and services link more than 18,000 libraries in 61 countries and territories. OCLC now has a World-Wide Web server providing information about OCLC and its products and services, including product information, research results, documentation about how to use OCLC services, and electronic forms. In 1995, the server will provide links to OCLC Electronic Journals Online and the FirstSearch service, for subscribers to these reference services.

383

Subject Access to a Data Base of Library Holdings  

ERIC Educational Resources Information Center

An experiment in manipulating machine-readable library records for use in subject searching indicated that such programs would be useful to extend service outside a single library location. (Author/PF)

Clark, Alice S.

1974-01-01

384

Integrating the digital library puzzle: The library without walls at Los Alamos  

SciTech Connect

Current efforts at the Research Library, Los Alamos National Laboratory (LANL), to develop digital library services are described. A key principle of LANL`s approach to delivering library information is the integration of products into a common interface and the use of the Web as the medium of service provision. Products described include science databases such as the SciSearch at LANL and electronic journals. Project developments described have significant ramifications for delivering library services over the Internet.

Luce, R.E.

1998-12-01

385

Advanced image collection, information extraction, and change detection in support of NN-20 broad area search and analysis  

SciTech Connect

This report describes the work performed at the Pacific Northwest National Laboratory (PNNL) for the U.S. Department of Energy`s Office of Nonproliferation and National Security, Office of Research and Development (NN-20). The work supports the NN-20 Broad Area Search and Analysis, a program initiated by NN-20 to improve the detection and classification of undeclared weapons facilities. Ongoing PNNL research activities are described in three main components: image collection, information processing, and change analysis. The Multispectral Airborne Imaging System, which was developed to collect georeferenced imagery in the visible through infrared regions of the spectrum, and flown on a light aircraft platform, will supply current land use conditions. The image information extraction software (dynamic clustering and end-member extraction) uses imagery, like the multispectral data collected by the PNNL multispectral system, to efficiently generate landcover information. The advanced change detection uses a priori (benchmark) information, current landcover conditions, and user-supplied rules to rank suspect areas by probable risk of undeclared facilities or proliferation activities. These components, both separately and combined, provide important tools for improving the detection of undeclared facilities.

Petrie, G.M.; Perry, E.M.; Kirkham, R.R.; Slator, D.E. [and others

1997-09-01

386

Globally optimal 3D graph search incorporating both edge and regional information: application to aortic MR image segmentation  

NASA Astrophysics Data System (ADS)

We present a novel method for incorporating both edge and regional image information in a 3-D graph-theoretic approach for globally optimal surface segmentation. The energy functional takes a ratio form of the "onsurface" cost and the "in-region" cost. We thus introduce an optimal surface segmentation model allowing regional information such as volume, homogeneity and texture to be included with boundary information such as intensity gradients. Compared to the linear combination as in the standard active contour energies, this ratioform energy is parameter free with no bias toward either a large or small region. Our method is the first attempt to use a ratio-form energy functional in graph search framework for high dimensional image segmentation, which delivers a globally optimal solution in polynomial time. The globally optimal surface can be achieved by solving a parametric maximum flow problem in the time complexity of computing a single maximum flow. Our new approach is applied to the aorta segmentation of 15 3-D MR aortic images from 15 subjects. Compared to an expert-defined independent standard, the overall mean unsigned surface positioning error was 0.76+/- 0.88 voxels. Our experiments showed that the incorporation of the regional information was effective to alleviate the interference of adjacent objects.

Song, Qi; Wu, Xiaodong; Dou, Xin; Sonka, Milan

2009-02-01

387

[The image of the dentist. Part 1: Results of a literature search].  

PubMed

The dentist enjoys a high degree of professional independence. He is seen as reliable and productive at work while carrying a big responsibility. His foremost social responsibility is to treat patients suffering from toothache and to promote oral health prevention for all people, regardless of their social status. At the same time, the dentist is prestigious, respected and honest. Comparable to other professions, however, dentistry is under public pressure. Media often associate the dental profession with negative properties such as sadism, immorality, or madness. Does the image of the dental profession suffer in this context? Our first article discusses the environmental factors which are identifiable to influence both each dentist and ultimately the whole image of dentistry. PMID:22362180

Wolf, Christian A; Ramseier, Christoph A

2012-01-01

388

Los Angeles Public Library: Electronic Neighborhood  

NSDL National Science Digital Library

Many urban public library systems across the United States have accumulated large troves of paper ephemera over the years, and the Los Angeles Public Library system is no exception. Funded by a grant from the California State Library, the Fletcher Jones Foundation, and the John Randolph Haynes and Dora Haynes Foundation, the Electronic Neighborhood allows the internet-browsing public access to a number of these documents. The database located here includes a large collection of photographs documenting the city's development, a collection of restaurant menus, and an index to fiction works that take place in and around California. The photo database contains over 2.5 million archival records, and a number of thematic online photo exhibits, including ones that document the 1932 Los Angeles Olympics and golf in Hollywood. The menu database is particularly fascinating, as users can search for a number of restaurant menus from the past century. While not all of the records include scanned menu images, a number of them are already available, such as those from the now-defunct Brown Derby.

389

Search for Periodicity in Image Sequences from YOHKOH Soft X-Ray Telescope  

NASA Astrophysics Data System (ADS)

The process by which the Sun's corona is heated is not well known. A leading model is the resonant absorption of Alfvenic surface waves. In order to be efficient as a heating mechanism, this process depends on the surface waves being well matched to the length of the coronal loop through the condition of global-mode resonance: v Alfvén = 2L/period (Davila 1987). The Yohkoh Soft X-Ray Telescope provides a means of recording the behavior and evolution of structures in the solar corona. Relatively fast-cadence sequences of CCD images become movies depicting the changing conditions in the X-ray emitting regions. By using software provided by the Yohkoh science team to measure the brightness of a selected subset of pixels in all the images of a movie, we can generate an X-ray light curve of a small portion of a given coronal structure. For the present dissertation, a number of SXT image sequences were selected from the Yohkoh archives. Light curves were generated in the manner outlined above, and these light curves were then examined for periodic modulations. It is shown that periodic modulations of X-ray brightness were detected with amplitudes of about 1%, and that the speeds implied by global-mode resonance are in the neighborhood of 1800-14000 km/s, consistent with Alfven wave speeds but much higher than sound speeds implied by the temperatures measured from the images. The wave speeds and the modulation amplitudes imply plasma beta values in the range ? p ? 10-3-10-2. Tests for correlations among physical conditions (loop length L, temperature T, pressure p, modulation depth ?I/I, quality Q, and period ?) in the periodically modulated loops tentatively support relationships like T ~ (pL)1/3, after Rosner et al. (1978), and Q ~ (? I/I)-2, after Zaitsev & Stepanov (1989), but do not support relationships like L ~ ?,/ L ~ p,/ L ~ T, or p ~ ?.

McKenzie, David Eugene

1997-11-01

390

SPHERE IFS: the spectro differential imager of the VLT for exoplanets search  

Microsoft Academic Search

The SPHERE is an exo-solar planet imager, which goal is to detect giant exo-solar planets in the vicinity of bright stars and to characterize them through spectroscopic and polarimetric observations. It is a complete system with a core made of an extreme-Adaptive Optics (AO) wavefront correction, a pupil tracker and diffraction suppression through a variety of coronagraphs. At its back

R. U. Claudi; M. Turatto; E. Giro; D. Mesa; U. Anselmi; P. Bruno; E. Cascone; V. de Caprio; S. Desidera; R. Dorn; D. Fantinel; G. Finger; R. G. Gratton; L. Lessio; J. L. Lizon; B. Salasnic; S. Scuderi; Kj. Dohlen; J. L. Beuzit; P. Puget; J. Antichi; N. Hubin; M. Kasper

2010-01-01

391

Genome Clone Libraries and Data from the Integrated Molecular Analysis of Genomes and their Expression (I.M.A.G.E.) Consortium  

DOE Data Explorer

The I.M.A.G.E. Consortium was initiated in 1993 by four academic groups on a collaborative basis after informal discussions led to a common vision of how to achieve an important goal in the study of the human genome: the Integrated Molecular Analysis of Genomes and their Expression Consortium's primary goal is to create arrayed cDNA libraries and associated bioinformatics tools, and make them publicly available to the research community. The primary organisms of interest include intensively studied mammalian species, including human, mouse, rat and non-human primate species. The Consortium has also focused on several commonly studied model organisms; as part of this effort it has arrayed cDNAs from zebrafish, and Fugu (pufferfish) as well as Xenopus laevis and X. tropicalis (frog). Utilizing high speed robotics, over nine million individual cDNA clones have been arrayed into 384-well microtiter plates, and sufficient replicas have been created to distribute copies both to sequencing centers and to a network of five distributors located worldwide. The I.M.A.G.E. Consortium represents the world's largest public cDNA collection, and works closely with the National Institutes of Health's Mammalian Gene Collection(MGC) to help it achieve its goal of creating a full-length cDNA clone for every human and mouse gene. I.M.A.G.E. is also a member of the ORFeome Collaboration, working to generate a complete set of expression-ready open reading frame clones representing each human gene. Custom informatics tools have been developed in support of these projects to better allow the research community to select clones of interest and track and collect all data deposited into public databases about those clones and their related sequences. I.M.A.G.E. clones are publicly available, free of any royalties, and may be used by anyone agreeing with the Consortium's guidelines.

None

392

Search for spontaneous edge currents and vortex imaging in Sr2RuO4 mesostructures  

NASA Astrophysics Data System (ADS)

Scanning Hall probe microscopy has been used to search for spontaneous fields at the well-defined edges of large mesoscopic disks, etched into the ab surface of very high quality single crystal Sr2RuO4. Such fields are predicted to exist at locations of broken translational symmetry as a consequence of the proposed two-component spin-triplet chiral order parameter d ?=?0(kx±iky)?. We find no evidence for such fields and impose an upper limit of ±2.5 mG on their magnitude. We do, however, observe an abrupt apparent loss of strong bulk pinning and a change in the screening behavior above H ˜25 Oe. At high fields (H >25 Oe) pronounced magnetic screening by the disks is very well described by a model containing only strong edge currents, and bulk critical currents do not appear to play a significant role. Our results are discussed in terms of relevant theoretical predictions.

Curran, P. J.; Bending, S. J.; Desoky, W. M.; Gibbs, A. S.; Lee, S. L.; Mackenzie, A. P.

2014-04-01

393

PERSIVAL, a System for Personalized Search and Summarization over Multimedia Healthcare Information.  

ERIC Educational Resources Information Center

This paper reports on the ongoing development of PERSIVAL (Personalized Retrieval and Summarization of Image, Video, and Language), a system designed to provide personalized access to a distributed digital library of medical literature and consumer health information. The goal for PERSIVAL is to tailor search, presentation, and summarization of…

McKeown, Kathleen R.; Chang, Shih-Fu; Cimino, James; Feiner, Steven K.; Friedman, Carol; Gravano, Luis; Hatzivassiloglou, Vasileios; Johnson, Steven; Jordan, Desmond A.; Klavans, Judith L.; Kushniruk, Andre; Patel, Vimla; Teufel, Simone

394

A search for p-mode pulsations in white dwarf stars using the Berkeley Visible Imaging Tube detector  

NASA Astrophysics Data System (ADS)

We present high-speed photometry (resolution 0.1 s) obtained during the commissioning of the Berkely Visible Imaging Tube system on the Southern African Large Telescope (SALT). The observations were an attempt to search for very rapid p-mode oscillations in white dwarf stars and included three DA stars known to be g-mode pulsators (ZZ Cet, HK Cet and AF Pic), one other DA star (WD 1056-384) not known to be variable and one AM Cvn star (HP Lib). No evidence was found for any variations greater than about 1 mmag in amplitude (˜0.1 per cent) at frequencies in excess of 60 mHz (periods <17 s) in any of the target stars, though several previously known g-mode frequencies were recovered.

Kilkenny, D.; Welsh, B. Y.; Koen, C.; Gulbis, A. A. S.; Kotze, M. M.

2014-01-01

395

Cuneiform Digital Library Initiative  

NSDL National Science Digital Library

The Cuneiform Digital Library Initiative (CDLI) is an international group of Assyriologists, museum curators and historians making available cuneiform tablets dating from the beginning of writing, ca. 3200 B.C., until the end of the third millennium. Led by a team at the University of California at Los Angeles, with initial National Science Foundation funding, this ambitious project seeks expose the collections within the US, Germany, Austria, and the Czech Republic, to a broad audience of specialists, scholars and advanced students. The presently limited (but growing) data set consists of text and image (current library entries offer high quality images), combining document transliterations, text glossaries and digitized originals and photo archives of early cuneiform. To promote discussion and scholarship, CDLI established two, English language, electronic journals which are currently accepting submissions, Cuneiform Digital Library Bulletin (for the rapid distribution of short notes) and the Cuneiform Digital Library Journal (more substantive scholarly contributions). The initial contributions will be made available in March 2002. This collection can be somewhat difficult to navigate, but offers a great opportunity to interested scholars and students.

2001-01-01

396

A SEARCH FOR RADIO TRANSIENTS IN VERY LARGE ARRAY ARCHIVAL IMAGES OF THE 3C 286 FIELD  

SciTech Connect

We present a search for radio transients (RTs) in the field of the bright radio source 3C 286 using archival observations from the Very Large Array (VLA). These observations span 23 years and include 1852 epochs at 1.4 GHz in the C and D configurations. We find no transients in the field. The sensitivity of the observations is limited by dynamic range effects in the images. At large flux densities (>0.2 Jy), single-epoch observations provide a strong limit on the transient surface density. At flux densities near the dynamic range threshold, we use the requirement that transient sources must appear in consecutive epochs to be confirmed as real. This sets the sensitivity at low flux densities to transient durations of {tau} {approx} 1 day, while {tau}>1 minute for high flux densities. At 70 mJy, we find a 2{sigma} limit on the surface density {Sigma} < 3 x 10{sup -3} deg{sup -2}. At 3 Jy, we find a 2{sigma} limit {Sigma} < 9 x 10{sup -4} deg{sup -2}. A future systematic search of the VLA archives can provide one to two orders of magnitude more sensitivity to RTs.

Bower, Geoffrey C. [Radio Astronomy Laboratory and Department of Astronomy, University of California, Berkeley, 601 Campbell Hall 3411, Berkeley, CA 94720 (United States); Saul, Destry, E-mail: gbower@astro.berkeley.edu, E-mail: destry@astro.columbia.edu [Department of Physics, Columbia University, 538 West 120th Street, 1333 Pupin, MC 5255, New York, NY 10027 (United States)

2011-02-10

397

Images from the History of Medicine (IHM)  

NSDL National Science Digital Library

On February 24, the National Library of Medicine announced that approximately 60,000 rescanned images had been placed on the Images from the History of Medicine Website (originally reviewed in the June 17, 1994 Scout Report). These new images have been scanned directly from archival slides at a high (2700 dpi) resolution rate. Because of the quality of these images, they have been watermarked. Users can browse or search the image collection by keyword. Returns include a large thumbnail image, author, title, and physical description. Copyright and ordering information are provided at the site.

398

Automated Image-Based Method for Laboratory Screening of Coating Libraries for Adhesion of Algae and Bacterial Biofilms  

Microsoft Academic Search

Assessment and down-selection of non-biocidal coatings that prevent the adhesion of fouling organisms in the marine environment requires a hierarchy of laboratory methods to reduce the number of experimental coatings for field testing. Automated image-based methods are described that facilitate rapid, quantitative biological screening of coatings generated through combinatorial polymer chemistry. Algorithms are described that measure the coverage of bacterial

Eraldo Ribeiro; Shane J. Stafslien; Franck Casse?; James A. Callow; Maureen E. Callow; Robert J. Pieper; Justin W. Daniels; James A. Bahr; Dean C. Webster

2008-01-01

399

Hybrid fluorescent conjugates of COX-2 inhibitors: search for a COX-2 isozyme imaging cancer biomarker.  

PubMed

The observation that the cyclooxygenase-2 (COX-2) isozyme is over-expressed in multiple types of cancer, relative to that in adjacent non-cancerous tissue, prompted this investigation to prepare a group of hybrid fluorescent conjugates wherein the COX inhibitors ibuprofen, (S)-naproxen, acetyl salicylic acid, a chlororofecoxib analog and celecoxib were coupled via a linker group to an acridone, dansyl or rhodamine B fluorophore. Within this group of compounds, the ibuprofen-acridone conjugate (10) showed potent and selective COX-2 inhibition (COX-2 IC(50)=0.67 ?M; SI=110.6), but its fluorescence emission (?(em)=417, 440 nm) was not suitable for fluorescent imaging of cancer cells that over-express the COX-2 isozyme. In comparison, the celecoxib-dansyl conjugate (25) showed a slightly lower COX-2 potency and selectivity (COX-2 IC(50)=1.1 ?M; SI>90) than the conjugate 10, and it possesses a better fluorescence emission (?(em)=500 nm). Ultimately, a celecoxib-rhodamine B conjugate (28) that exhibited moderate COX-2 potency and selectivity (COX-2 IC(50)=3.9 ?M; SI>25) having the best fluorescence emission (?(em)=580 nm) emerged as the most promising biomarker for fluorescence imaging using a colon cancer cell line that over-expresses the COX-2 isozyme. PMID:23200247

Bhardwaj, Atul; Kaur, Jatinder; Sharma, Sai Kiran; Huang, Zhangjian; Wuest, Frank; Knaus, Edward E

2013-01-01

400

A library for the twenty-first century: the Galter Health Sciences Library's renovation and expansion project.  

PubMed Central

A renovation and expansion project at the Galter Health Sciences Library of Northwestern University strikes a balance between traditional and future libraries, library ambiance and high technology, old and new. When guided by a vision of future building use, renovation projects can succeed in meeting many institutional goals as a viable alternative to new library buildings. Issues addressed include planning considerations, architectural history, library design, building features, information technology considerations, and ideal library space design when new construction is not possible. Images

Shedlock, J; Ross, F

1997-01-01

401

Content-based numerical report searching for image enabled case retrieval  

NASA Astrophysics Data System (ADS)

One way to improve accuracy of diagnosis and provide better medical treatment to patients is to recall or find records of previous patients with similar disease features from healthcare information systems which already have confirmed diagnostic results. In most situations, features of disease may be described by other kinds of information or data types such as numerical reports or a simple or complicated SR (Structure Reports) generated from Ultrasound Information System (USIS) or from computer assisted detection (CAD) components, or laboratory information system (LIS). In this presentation, we described a new approach to search and retrieve numerical reports based on the contents of parameters from large database of numerical reports. We have tested this approach by using numerical data from an ultrasound information system (USIS) and got desired results both in accuracy and performance. The system can be wrapped as a web service and is being integrated into a USIS and EMR for clinical evaluation without interrupting the normal operations of USIS/RIS/PACS. We give the design architecture and implementation strategy of this novel framework to provide feature based case retrieval capability in an integrated healthcare information system.

Xue, Liang; Ling, Tonghui; Zhang, Jianguo

2010-03-01

402

CPL: Common Pipeline Library  

NASA Astrophysics Data System (ADS)

The Common Pipeline Library (CPL) is a set of ISO-C libraries that provide a comprehensive, efficient and robust software toolkit to create automated astronomical data reduction pipelines. Though initially developed as a standardized way to build VLT instrument pipelines, the CPL may be more generally applied to any similar application. The code also provides a variety of general purpose image- and signal-processing functions, making it an excellent framework for the creation of more generic data handling packages. The CPL handles low-level data types (images, tables, matrices, strings, property lists, etc.) and medium-level data access methods (a simple data abstraction layer for FITS files). It also provides table organization and manipulation, keyword/value handling and management, and support for dynamic loading of recipe modules (using programs such as EsoRex).

ESO CPL Development Team

2014-02-01

403

America's Star Libraries  

ERIC Educational Resources Information Center

"Library Journal"'s new national rating of public libraries, the "LJ" Index of Public Library Service, identifies 256 "star" libraries. It rates 7,115 public libraries. The top libraries in each group get five, four, or three Michelin guide-like stars. All included libraries, stars or not, can use their scores to learn from their peers and improve…

Lyons, Ray; Lance, Keith Curry

2009-01-01

404

Public Libraries  

ERIC Educational Resources Information Center

Building data is given for the following public libraries: New York, New York; Blue Island, Illinois; Corte Madera, California; Muskogee, Oklahoma: Charlotte, North Carolina; Washington, D.C.; Houston, Texas; Albermarle, North Carolina; Spokane, Washington; and Hemet, California. (Author/NH)

Library Journal, 1972

1972-01-01

405

South Carolina Digital Library  

NSDL National Science Digital Library

This website is a collaboration created by a diverse group of South Carolina schools, libraries, cultural heritage institutions, museums, and archives, its mission is to encourage collaborators to "create, maintain, and promote digital collections that represent South Carolina's historical and cultural resources." The site can be explored via numerous thematic sections. Visitors can choose such browsing and searching options as "Browse Institution", "Browse Counties", "Browse People", "Browse Timeline" or "Browse Everything". The "Teaching Resources" encourages critical thinking from students while teaching students how to use primary sources, such as film reels. Visitors will also find the "Newest Collections" added to the site located in the upper right hand box on the homepage, and new additions include documents from the South Carolina State Library and pamphlets from the Historic Charleston Foundation.

406

British Library: Blogs  

NSDL National Science Digital Library

The British Library is one of the world's great libraries and its blogs are quite excellent as well. These streams of thought and commentary are crafted by curators, subject specialists, and guest bloggers and on any given day might include "Jokes for David Frost," "Dogs: Medieval Man's Best Friend," and thoughts on Shakespeare's "Measure for Measure." All told, there are over a dozen blogs here and they cover American studies, medieval manuscripts, science, and cartography. The cartography blog is a real pip, addressing topics such as the geography of music festivals and the whimsical sea monsters that grace many ancient maps. Visitors can search through each blog and also elect to sign up to receive updates about new posts.

407

Hanford Site Video Library  

DOE Data Explorer

The 586-square-mile Hanford Site is located along the Columbia River in southeastern Washington State. A plutonium production complex with nine nuclear reactors and associated processing facilities, Hanford played a pivotal role in the nation's defense for more than 40 years, beginning in the 1940s with the Manhattan Project. Today, under the direction of the U.S. Department of Energy, Hanford is engaged in the world's largest environmental cleanup project, with a number of overlapping technical, political, regulatory, financial and cultural issues. The Hanford Site Video Library currently makes 30 videos related to the siteÆs history and the clean-up available for online viewing. The Video Library (also referred to as the Broadcast Archive) can be searched by keywords in the title or description. They can also be browsed in a complete list.

408

A search for spectral units on the Uranian satellites using color ratio images  

NASA Technical Reports Server (NTRS)

Twenty multispectral sets of calibrated coregistered Voyager 2 images of the Uranian satellites are analyzed in order to identify spectrally distinct surface units and associate these units with specific endogenic or exogenic surface processes. Several regions on each satellite where significant spectral/compositional diversity could be expected were identified by morphologic unit mapping. All the Uranian satellites were found to exhibit some degree of spectral variability associated with bright impact craters, with the typical trend being that the bright craters and their associated ejecta deposits are less red than the remainder of the satellites by 5 to 30 percent. Oberon shows the greatest variability, followed by Titania and Ariel. Morphologic features on Miranda and Ariel possibly associated with endogenic processes such as tectonism or ice volcanism do not exhibit as high a degree of spectral variability relative to their surroundings as bright impact craters.

Bell, J. F., III; Mccord, T. B.

1991-01-01

409

On application of image analysis and natural language processing for music search  

NASA Astrophysics Data System (ADS)

In this paper, I investigate a problem of finding most similar music tracks using, popular in Natural Language Processing, techniques like: TF-IDF and LDA. I de ned document as music track. Each music track is transformed to spectrogram, thanks that, I can use well known techniques to get words from images. I used SURF operation to detect characteristic points and novel approach for their description. The standard kmeans was used for clusterization. Clusterization is here identical with dictionary making, so after that I can transform spectrograms to text documents and perform TF-IDF and LDA. At the final, I can make a query in an obtained vector space. The research was done on 16 music tracks for training and 336 for testing, that are splitted in four categories: Hiphop, Jazz, Metal and Pop. Although used technique is completely unsupervised, results are satisfactory and encouraging to further research.

Gwardys, Grzegorz

2013-10-01

410

A search for spectral units on the Uranian satellites using color ratio images  

NASA Astrophysics Data System (ADS)

Twenty multispectral sets of calibrated coregistered Voyager 2 images of the Uranian satellites are analyzed in order to identify spectrally distinct surface units and associate these units with specific endogenic or exogenic surface processes. Several regions on each satellite where significant spectral/compositional diversity could be expected were identified by morphologic unit mapping. All the Uranian satellites were found to exhibit some degree of spectral variability associated with bright impact craters, with the typical trend being that the bright craters and their associated ejecta deposits are less red than the remainder of the satellites by 5 to 30 percent. Oberon shows the greatest variability, followed by Titania and Ariel. Morphologic features on Miranda and Ariel possibly associated with endogenic processes such as tectonism or ice volcanism do not exhibit as high a degree of spectral variability relative to their surroundings as bright impact craters.

Bell, J. F., III; McCord, T. B.

411

Searching early bone metastasis on plain radiography by using digital imaging processing  

SciTech Connect

Some authors mention that it is not possible to detect early bone metastasis on plain radiography. In this work we use digital imaging processing to analyze three radiographs taken from a patient with bone metastasis discomfort on the right shoulder. The time period among the first and second radiography was approximately one month and between the first and the third one year. This procedure is a first approach in order to know if in this particular case it was possible to detect an early bone metastasis. The obtained results suggest that by carrying out a digital processing is possible to detect the metastasis since the radiography contains the information although visually it is not possible to observe it.

Jaramillo-Nunez, A.; Perez-Meza, M. [Instituto Nacional de Astrofisica, Optica y Electronica, Apdo. Postal 51 y 216, Pue. (Mexico); Universidad de la Sierra Sur, C. P. 70800, Miahuatlan, Oax. (Mexico)

2012-10-23

412

Discovery of Hapten-Specific scFv from a Phage Display Library and Applications for HER2-Positive Tumor Imaging.  

PubMed

In this study, an anti-hapten antibody (single chain Fv, scFv) against a hapten probe was developed as a unique reporter system for molecular imaging or therapy. The hapten peptide (histamine-succinyl-GSYK, Him) was synthesized for phage displayed scFv affinity selection and for conjugation with cypate (Cy-Him) for in vivo near-infrared (NIR) optical imaging. Hapten-specific scFvs were affinity selected from the human single fold phage display scFv libraries (Tomlinson I + J) with high specificity and affinity. Utilizing HER2 targeting as a model system, the highest affinity scFv (clone J42) was recombinantly fused to an anti-HER2 affibody (scFv-L-Aff) with no loss of affinity of either protein. The functionality of the hapten-scFv reporter system was tested in vitro with a HER2-positive human breast cancer cell line, SK-BR3, and in vivo with SK-BR3 xenografts. ScFv-L-Aff mediated the binding of the hapten to HER2 on SK-BR3 cells and from tissue from the SK-BR3 xenograft; however, scFv-L-Aff did not mediate uptake of the hapten in the SK-BR3 xenografted tumors, presumably due to rapid internalization of the HER2/scFv-L-Aff complex. Our results suggest that this hapten-peptide and anti-hapten scFv can be a universal reporter system in a wide range of imaging and therapeutic applications. PMID:24898150

Kim, Hye-Yeong; Wang, Xiaolei; Wahlberg, Brendon; Edwards, W Barry

2014-07-16

413

Thinking Inside the Box: Comparing Federated Search Results from Google Scholar, Live Search Academic, and Central Search  

Microsoft Academic Search

In a comparison of Google Scholar, Windows Live Search Academic, and Serials Solutions' Central Search, relevant retrieval increases in direct relation to the complexity of the search interface. Central Search, as customized for Florida Gulf Coast University Library, permits far more complex searching than Google Scholar or Windows Academic and performs better than its simpler competitors. However, a close review

Rachel Cooke; Rebecca Donlan

2008-01-01

414

MyLibrary: A Web Personalized Digital Library.  

ERIC Educational Resources Information Center

With the increasing availability of information on Internet information providers, like search engines, digital libraries and online databases, it becomes more important to have personalized systems that help users to find relevant information. One type of personalization that is growing in use is recommender systems. This paper presents…

Rocha, Catarina; Xexeo, Geraldo; da Rocha, Ana Regina C.

415

Search for ENA from the heliospheric boundary using IMAGE/HENA  

NASA Astrophysics Data System (ADS)

The HENA instrument on the IMAGE spacecraft measures energetic neutral atoms (ENAs) using time-of-flight over the energy range 10-200 keV/nuc. Whenever there are neither magnetospheric ENAs nor energetic ions in sufficient numbers to penetrate the electrostatic deflection system, HENA will respond to ENAs from the heliosphere. These may either be ENAs produced within the solar wind by shock-accelerated ions that charge exchange with interstellar H-atoms [Roelof, 1992], or ENA H-atoms produced by protons accelerated in the vicinity of the heliospheric termination shock and transported beyond it into the sub-sonic heliosheath [Gruntman et al., 2001]. During 2 hr of every appropriate apogee pass of IMAGE, we select a region of the antiEarthward sky approximately 60 degx60 deg and accumulate counts in 6 degx6 deg instrument pixels and in 5 energy channels. The energy spectrum and angular distribution accumulated during each apogee pass (usually containing >30 counts) are both examined for possible contamination. Acceptable counts are mapped into absolute intensities (cm2 sr s keV)-1 over the celestial sphere using the calibrated response function of the instrument. This allows counts from separate apogee passes to be properly concatenated. Any resulting intensity then gives an upper bound on ENAs from either within the heliosphere or from the termination shock. The portion of the celestial sphere covered so far is predominantly in the northern hemisphere. Preliminary results give an upper bound on the spectrum in the range 16-60 keV that is below the ENA intensity recently predicted for pickup protons accelerated at a strong heliospheric termination shock [Fahr and Lay, 2000]. However, this upper bound is well above the intensity we calculate for ENAs that would be produced by the recently reported ubiquitous high energy tails on long-term-averaged energetic ion spectra measured on the ACE spacecraft [Mewaldt et al., 2001].

Roelof, E.; C:Son Brandt, P.; Demajistre, R.; Mitchell, D.

416

A search for distant radio galaxies from SUMSS and NVSS - I. Sample definition, radio and K-band imaging  

NASA Astrophysics Data System (ADS)

We present the first results from a pilot study to search for distant radio galaxies in the southern hemisphere (? < -32°). Within a 360 deg2 region of sky, we define a sample of 76 ultra-steep spectrum (USS) radio sources from the 843-MHz Sydney University Molonglo Sky Survey (SUMSS) and 1.4-GHz NRAO VLA Sky Survey (NVSS) radio surveys with ?1400843 < -1.3 and S1400 > 15 mJy. We observed 71 sources without bright optical or near-infrared counterparts at 1.385 GHz with the ATCA, providing ~5 arcsec resolution images and subarcsec positional accuracy. To identify their host galaxies, we obtained near-infrared K-band images with IRIS2 at the AAT and SofI at the NTT. We identify 92 per cent of the USS sources down to K~ 20.5. The SUMSS-NVSS USS sources have a surface density more than 4 times higher than USS sources selected at lower frequencies. This is due to the higher effective selection frequency, and the well-matched resolutions of both surveys constructed using the same source fitting algorithm. The scattering of ? > -1.3 sources into the USS sample due to spectral index uncertainties can account for only 35 per cent of the observed USS sources. Because our sample appears to contain a similar fraction of very distant (z > 3) galaxies, selecting USS sources from SUMSS-NVSS should allow us to identify large numbers of massive galaxies at high redshift.

De Breuck, Carlos; Hunstead, Richard W.; Sadler, Elaine M.; Rocca-Volmerange, Brigitte; Klamer, Ilana

2004-01-01

417

Rural Public Libraries in Multitype Library Cooperatives.  

ERIC Educational Resources Information Center

Provides a historical overview of library cooperative efforts, the roles identified for the cooperative library organizations and their members, and associated services. Examines the contributions that rural libraries make toward cooperation among all types of libraries and identifies challenges for rural libraries participating in networks in the…

Ison, Jan

1995-01-01

418

Online Bibliographic Retrieval Services in Various Australian Tertiary Institutions: Trends in the Scope and Nature of Online Searching and an Evaluation of Patron Satisfaction. ANU Library Occasional Paper Number 2.  

ERIC Educational Resources Information Center

A 1981 investigation by the Australian National University (ANU) library of the scope and nature of online bibliographic retrieval services provided by the 19 Australian university libraries and 5 of the Australian central Institute of Technology libraries, and a further study carried out in 1980-81 to assess the satisfaction of patrons with…

Wood, Fiona

419

The JPL Library Information Retrieval System  

ERIC Educational Resources Information Center

The development, capabilities, and products of the computer-based retrieval system of the Jet Propulsion Laboratory Library are described. The system handles books and documents, produces a book catalog, and provides a machine search capability. (Author)

Walsh, Josephine

1975-01-01

420

University of Hawai'i at Manoa Libraries Special Collections: Digital Archives  

NSDL National Science Digital Library

Created by the University of Hawai'i System Libraries, this site contains three collections of digitized images. The first features images of Hawaiian language newspapers published from 1834 to 1948. They include stories, photos, advertisements, letters to the editor, and other content. The quality of images varies. The second collection comes from the Hawai'i War Records Depository (HWRD), and in addition to the photos, this section also provides information on the holdings of the HWRD, contact information, and a link to an online catalog. The third, and largest, collection includes approximately 8,000 images from the Trust Territory of the Pacific Islands (TTPI) archives. The photos are browsed by "reel" number and are offered as large thumbnails with links to full-size JPEG or TIFF images. The photos may also be keyword searched using an internal search engine. Links to further information about the four separate, self-governing districts that once composed the TTPI are also provided.

2001-01-01

421

The Networked Computer Science Technical Report Library  

Microsoft Academic Search

The Networked Computer Science Technical Report Library (NCSTRL 1 ) is a distributed digital library of research results from computer science departments and laboratories in the USA and abroad. NCSTRL benefits readers, authors, and departments. Researchers throughout the world can use familiar Internet tools (the World Wide Web) to search for, browse, read, and download technical reports from participating institutions.

James R. Davis; Carl Lagoze

1996-01-01

422

Negotiating the Digital Library: Document Delivery.  

ERIC Educational Resources Information Center

The eLib-funded FIDDO (Focused Investigation of Document Delivery Options) project provides library managers/others with information to support policy decisions. Senior libraries were interviewed about the future of document delivery and interviews were analyzed with the support of NUD*IST (Nonnumerical Unstructured Data by Indexing, Searching and…

Jacobs, Neil; Morris, Anne

1999-01-01

423

Shaping the library of the future: Digital library developments at Los Alamos National Laboratory`s Research Library  

SciTech Connect

This paper offers an overview of current efforts at the Research Library, Los Alamos National Laboratory, (LANL), to develop digital library services. Current projects of LANL`s Library without Walls initiative are described. Although the architecture of digital libraries generally is experimental and subject to debate, one principle of LANL`s approach to delivering library information is the use of Mosaic as a client for the Research Library`s resources. Several projects under development have significant ramifications for delivering library services over the Internet. Specific efforts via Mosaic include support for preprint databases, providing access to citation databases, and access to a digital image database of unclassified Los Alamos technical reports.

Luce, R.E.

1994-10-01

424

International Relations: Library Instruction Unit.  

ERIC Educational Resources Information Center

In support of the United States Naval Academy's program in international relations, library reference staff developed an instruction unit featuring appropriate research guides and a videotape produced at the Naval Academy Educational Resource Center. The videotape illustrates a sample search strategy and then highlights the use of four basic…

Hall, Cathie

425

Optimizing use of library technology.  

PubMed

In this bimonthly series, the author examines how nurse educators can use the Internet and Web-based computer technologies such as search, communication, collaborative writing tools; social networking and social bookmarking sites; virtual worlds; and Web-based teaching and learning programs. This article describes optimizing the use of library technology. PMID:21330886

Wink, Diane M; Killingsworth, Elizabeth K

2011-01-01

426

A search for small comets in consecutive images acquired with a ground-based telescope  

NASA Astrophysics Data System (ADS)

The Spacewatch Camera was calibrated in order to accurately determine the apparent V magnitudes of the observed objects and subsequently to estimate the corresponding masses. The Spacewatch Camera was cross-calibrated with The University of Iowa's 0.61-m Cassegrain at the Riverside Astronomical Observatory and with the observations by Sandage (1970) and by Sandage and Katem (1982). The three calibrations of the Spacewatch Camera agreed to within 0.1 mag. Twenty-four small body trails were identified in 48 pairs of consecutive images. To within statistical uncertainty, each pair of trails had equal brightness and length, was collinear and had the correct separation. An additional pair of trails was observed that satisfied the collinearity, length and separation criteria; however, the trail brightness could not be confirmed because the second small body trail crosses a star trail. The integral number densities as a function of apparent V magnitude and as a function of mass were determined for the small body trails observed by Yeates (1989) and the small body trails observed by the present observations. The observed small body trails have the orbital parameters, brightness, and spatial density inferred for the small comets proposed by Frank et al. (1986; 1987).

Sigwarth, John B.

427

(Meta)Search like Google  

ERIC Educational Resources Information Center

The ability to search and receive results in more than one database through a single interface--or metasearch--is something many users want. Google Scholar--the search engine of specifically scholarly content--and library metasearch products like Ex Libris's MetaLib, Serials Solution's Central Search, WebFeat, and products based on MuseGlobal used…

Rochkind, Jonathan

2007-01-01

428

Lesson Plans Library  

NSDL National Science Digital Library

As part of Discovery.com and DiscoverySchool.com, the Lesson Plans Library gives educators a collection of "hundreds of original lesson plans, all written by teachers for teachers". The plans can be searched by grade, subject, or both and are presented in an easy and consistent format with sections on lesson objectives, needed materials, procedures, etc. Printable versions of each lesson plan are available as well as a teaching tools link to create custom worksheets, puzzles and quizzes about each topic.

2001-01-01

429

Library Collaboration Aids Global Research  

NASA Astrophysics Data System (ADS)

In the geosciences, organizational libraries and information centers are local sources for scientists, students, and members of the general public who are searching for current or historic information in their fields. They offer focused collections, rare materials, and knowledgeable librarians, but often issues caused by isolation and limited resources impede their ability to fulfill the researchers' needs. Unlike the local university libraries, these small special information centers are usually housed in the same building as their scientists' offices. To help overcome these problems of limited resources and isolation, while retaining the organizational focus and unique collections that are its strengths, the National Snow & Ice Data Center (NSIDC) Information Center has begun to collaborate with similar libraries and information centers. This project has three major steps: 1. Catalog sharing through internet-based links. 2. Resource sharing. 3. Expansion of collaboration. NSIDC is creating catalog links with a sister library, the Institute of Arctic and Alpine Research (INSTAAR) Information Center. Once the links are established, the two libraries will develop a plan for resource sharing and coordinated purchasing. This small collaborative effort will serve as a template for a network of special libraries within Colorado. Ultimately, they hope to expand the collaborative effort to small libraries with a similar focus around the globe. This poster will outline and graphically illustrate these steps, as well as provide a template for future expansion of the project.

Hicks, G. J.; Howard, A. L.; Sommer, S.

2005-12-01

430

Novel Passive Millimeter Imager for Broad-Area Search - Final Report on Project PL09-NPMI-PD07 (PNNL-55180).  

National Technical Information Service (NTIS)

This report describes research and development efforts toward a novel passive millimeter-wave (mm-wave) electromagnetic imaging device for broad-area search. It addresses the technical challenge of detecting anomalies that occupy a small fraction of a pix...

B. E. Bernacki B. K. Hatchell C. D. Knopik J. F. Kelly J. R. Tedesch

2011-01-01

431

Searching for the Perfect Match: A Comparison of Free Sorting Results for Images by Human Subjects and by Latent Semantic Analysis Techniques  

Microsoft Academic Search

Oftentimes, retrieval engines return endless lists of rank- ordered matching documents or images. The preorganization of search results into categories of documents with similar content based on research on human clustering strategies seems to be a promising way to manage this information flood. Information visualization can improve the access and manipulation of digital data if it conforms to human expectations,

Katy Börner

2000-01-01

432

Military Education and Research Library Network  

NSDL National Science Digital Library

The official Web presence of the military education libraries in the United States and Europe, MERLN links together the holdings and electronic information resources of fourteen libraries, collectively the "largest and most comprehensive collections of military information resources in the world." Users can select a Topic Area (or create a custom topic) or a specific catalog, and then search by title, author, subject heading, or advanced options. The databases are also browseable by author, title, subject, or year. A sample search under title keyword for all libraries for "carpet bombing" produced 74 hits, while "Antietam" produced 266. Hits for each library are listed in a frame on the left-hand side, while basic bibliographic information on each title is listed on the right, with links to more detailed information. Users can repeat previous searches and combine them with other searches using the History option and also save and email selected search returns. Please note that at present the library catalogs for the Marine Corps University Research Center, the Marshall Center, the US Coast Guard Academy, and the US Naval Academy cannot be directly searched from MERLN, but efforts are underway to correct the problem. Users can access the homepages of these libraries, and all of the others linked through MERLN, from the main page.

2000-01-01

433

Examining Search Functions of EAD Finding Aids Web Sites  

ERIC Educational Resources Information Center

This article examined the search functions for all individual EAD Web sites listed on the Library of Congress Web site in 2003. In particular, the type of search engine, search modes, options for searching, search results display, search feedback, and other features of the search systems were studied. The data analysis suggests that there have…

Zhou, Xiaomu

2006-01-01

434

Paraprofessional Library Employees.  

National Technical Information Service (NTIS)

This pamphlet describes library paraprofessionals, answering the questions: (1) What are library paraprofessionals; (2) What do paraprofessionals do; (3) How can you become a library paraprofessional; (4) What is the job market for library paraprofessiona...

C. Evans

1976-01-01

435

Library Services. Miscellaneous Papers.  

National Technical Information Service (NTIS)

Papers on library journal cooperation, interlibrary lending, library services to minorities, and school library media centers, which were presented at the 1983 International Federation of Library Associations (IFLA) conference, include: (1) 'The Co-operat...

1983-01-01

436

The Library of Virginia: The Virginia Historical Inventory Project  

NSDL National Science Digital Library

The Library of Virginia's Digital Library Program (DLP) has brought to the Web the Virginia Historical Inventory Project (VHI), "a collection of detailed reports, photographs, and maps, documenting the architectural, cultural, and family histories of thousands of 18th- and 19th-century buildings in communities across Virginia." The collection consists of documents created by WPA workers who were specifically directed to focus on "vernacular architecture and the history of everyday buildings." Users can search the database via keyword, subject, author/ photographer, title, or record number, and along with the relevant report, results will link to maps and photographs, when available. A TIFF viewer is required in order to view page images of the reports, and there are links to download the software on-site.

437

Turkish Libraries: Historical Context.  

ERIC Educational Resources Information Center

Summary of the development of libraries in Turkey highlights the existence of libraries in the ninth century, the Shamssaddin Altunaba Medrese library in Konya, libraries established during the Ottoman era, reports to reform libraries (1869-70, 1909), and reports and library developments attributed to the Republican Era beginning in 1923. (EJS)

Cakin, Irfan

1984-01-01

438

Symposium on Presidential Libraries.  

ERIC Educational Resources Information Center

Includes five articles that discuss presidential libraries. Highlights include an overview of the development of the federal presidential library system; the Ronald Reagan library; the Richard Nixon library archives; access at the Gerald Ford library; and computerizing the Jimmy Carter library. (LRW)

Relyea, Harold C.; And Others

1994-01-01

439

Public Libraries in Bangladesh.  

ERIC Educational Resources Information Center

Overview of library movement in Bangladesh highlights British (1851-1947) and Pakistan periods (1947-1971), separation of Bangladesh from Pakistan, libraries in development plans (1951-1970), three important public libraries, development of national library, book resources, a library network plan, legislation, finance, leadership, library

Khan, M. H.

1984-01-01

440

Library Buildings and Equipment.  

ERIC Educational Resources Information Center

Six articles discuss library buildings and construction: (1) library buildings and their parts; (2) the North Campus Library of California State University at Long Beach in 1995; (3) new structures for teaching libraries; (4) construction standards for California public libraries; (5) Sick (Library) Building Syndrome; and (6) using focus-group…

Oringdulph, Robert E.; And Others

1990-01-01

441

World Digital Library  

NSDL National Science Digital Library

The World Digital Library, supported by UNESCO, is a project to provide primary sources from other countries and cultures free of charge, and is offered in seven different languages, including Arabic, Portuguese, and Russian. The design of the website is easy to navigate and very interactive, with its map of the world and timeline beneath it. Moving either of the lime green bars on the left and right of the timeline will change the images on the world map above it, and will provide images of the time period chosen when clicked. Each image is explained in whichever of the seven languages chosen in which to view the site, but any language that appears in the image remains in its original language. At the top of the page, visitors can choose to browse by "Place", "Time", "Topic", "Type of Item", and "Institution". The image quality is excellent, and once chosen, the image can be zoomed in on and panned. Thumbnails of similar items to the image chosen are also provided underneath the image.

442

IRI/LDEO Climate Data Library  

NSDL National Science Digital Library

Columbia University's International Research Institute for Climate Prediction (IRI) and Lamont-Doherty Earth Observatory (LDEO) have created this powerful Climate Data Library. The library "contains a wide variety of earth science data, primarily oceanographic and atmospheric datasets" and offers many ways of accessing and manipulating information. Specific topographical data or historical temperature and precipitation data, for example, may be found via searches by keyword, category, or source. The site comes complete with explanations to help users understand the vast search capabilities of the data library.

443

Afghanistan Digital Library  

NSDL National Science Digital Library

The goal of the Afghanistan Digital Library at New York University is "to retrieve and restore the first sixty years of Afghanistan's published cultural heritage." This period, from 1871 to 1930, is of great importance as the earliest publications from this time frame are very rare and decades of war have not helped the situation. A team of scholars working at the National Archives in Kabul and NYU has helped to digitize a number of these documents for inclusion in this digital library. The project is sponsored by NYU Libraries, the National Endowment for the Humanities, and The Reed Foundation. Currently, the archive contains over 380 books, and visitors can browse them at their leisure. There is a search feature, but as the transliteration part of the project is still in development, visitors might just want to look around at items they find compelling. The viewer application is quite user-friendly, and visitors can zoom in to examine various details of each work.

444

Visual search in noise: Revealing the influence of structural cues by gaze-contingent classification image analysis  

Microsoft Academic Search

Visual search experiments have usually involved the detection of a salient target in the presence of distracters against a blank background. In such high signal-to-noise scenarios, observers have been shown to use visual cues such as color, size, and shape of the target to program their saccades during visual search. The degree to which these features affect search performance is

Alan C. Bovik; Lawrence K. Cormack

445

A Fabry-Perot Imaging Search for Lyman-alpha Emission in Quasar Absorbers at z 2.4  

NASA Astrophysics Data System (ADS)

We have carried out a deep narrow-band imaging survey of six fields with heavy-element quasar absorption lines, using the Goddard Fabry Perot system at the Apache Point Observatory 3.5-meter telescope. The aim of these observations was to search for redshifted Ly-alpha emission from the galaxies underlying the absorbers at z = 2.3-2.5 and their companion galaxies. A few compact sources were discovered, but no significant diffuse Ly-alpha emitters were detected. Our observations suggest that the star formation rates in most of the absorbers in our sample are less than 1-2 Mo/yr, or that the Lyman-alpha flux is extinguished by dust within the absorber galaxies. We compare our results with those compiled from the literature and with predictions based on models of cosmic chemical evolution. VPK, DGT, and JM acknowledge support from NSF grant AST-0206197 and from the Univ. of South Carolina Research Foundation.

Kulkarni, V. P.; York, D. G.; Woodgate, B. E.; Palunas, P.; Thatte, D. G.; Meiring, J.; Wassell, E.

2004-12-01

446

Utilization of matrix-assisted laser desorption/ionization imaging mass spectrometry to search for cannabis in herb mixtures.  

PubMed

Herb mixtures including cannabis among the other herbs have recently appeared. When cannabinoids from herb extracts are detected by chemical examinations such as gas chromatography/mass spectrometry, forensic analysts have to determine whether cannabis is actually in the mixture or the cannabinoids are spiked. Morphological examinations are time-consuming, since it is difficult to find several pieces of cannabis among a large number of herb pieces using a microscope. Here, we propose a procedure for efficiently searching for cannabis in herb mixtures using matrix-assisted laser desorption/ionization imaging mass spectrometry (MALDI/IMS). Pieces of herb mixtures were spread on double-sided adhesive tape attached to a stainless steel plate. The pieces were then covered with a conductive sheet and pressed. After a solution containing a matrix reagent was sprayed, the distribution of cannabinoids in the sample was visualized by MALDI/IMS. Then, just the pieces with cannabinoids could be picked up selectively with tweezers and decolorized. Cystolith hairs and trichomes, which are characteristic of cannabis, were observed in most of these pieces using a biological microscope. This MALDI/IMS procedure enables cannabis to be found in herb mixtures without inefficient random sampling and microscopic morphological examination. PMID:24838491

Kuwayama, Kenji; Yamamuro, Tadashi; Tsujikawa, Kenji; Miyaguchi, Hajime; Kanamori, Tatsuyuki; Iwata, Yuko T; Inoue, Hiroyuki

2014-07-01

447

KEOPS: Kiloparsec Explorer for Optical Planet Search, a direct-imaging optical array at Dome C of Antarctica  

NASA Astrophysics Data System (ADS)

Recent site seeing testing campaigns conducted by our team from University of Nice1 show that Dome C represents the best site on Earth for astronomical high angular resolution (HAR) observations at optical and IR wavelengths. The dramatic gain over relevant HAR parameters r0, L0, ?0 and ?0, added to very low temperatures during the polar winter nights (-70°C), the dry atmosphere and the possibility of continuous observations during several nights make Dome C the ideal site for deploying a kilometric optical interferometer before the 2015 horizon. Here we describe the concept of Kiloparsec Explorer for Optical Planet Search (KEOPS) that is studied by our group at LUAN. KEOPS is an interferometric array of 36 off-axis telescopes, each 1.5m in diameter. Its kilometric baselines open sub-mas snap-shot imaging possibilities to detect and characterize extra-solar planetary systems, especially exo-Earths out to 300 parsecs from the visible to the thermal IR. KEOPS can be considered as a DARWIN/TPF challenger but at a much lower cost.

Vakili, Farrokh; Belu, Adrian; Aristidi, Eric; Fossat, Eric; Maillard, A.; Abe, Lyu; Agabi, Karim; Vernin, Jean; Baptiste Daban, Jean; Hertmanni, Wilfried; Schmider, Francois-Xavier; Assus, Pierre; Coudé du Foresto, Vincent; Swain, Mark R.

2004-10-01

448

Virtual Cultural Library  

NSDL National Science Digital Library

This new site from UNESCO (United Nations Educational, Scientific and Cultural Organization) offers the full text of a select collection of works on cultural heritage published by the organization, many of them currently out of print. The content of the Library is divided into two sections: Books and Conventions. At present, the Books section contains eleven titles in English, nine in French, and one in Spanish. A summary, image of the cover, and page total are offered for each book, along with a link to the full text in .pdf format. The Conventions section includes links to the full text of ten conventions in the fields of creativity and copyright and cultural heritage. These are presented in HTML format. These texts are only the initial offering, and UNESCO plans to expand the library based in part on user input.

449

Deep search for companions to probable young brown dwarfs. VLT/NACO adaptive optics imaging using IR wavefront sensing  

NASA Astrophysics Data System (ADS)

Aims: We have obtained high contrast images of four nearby, faint, and very low mass objects 2MASS J04351455-1414468, SDSS J044337.61+000205.1, 2MASS J06085283-2753583 and 2MASS J06524851-5741376 (hereafter 2MASS0435-14, SDSS0443+00, 2MASS0608-27 and 2MASS0652-57), identified in the field as probable isolated young brown dwarfs. Our goal was to search for binary companions down to the planetary mass regime. Methods: We used the NAOS-CONICA adaptive optics instrument (NACO) and its unique capability to sense the wavefront in the near-infrared to acquire sharp images of the four systems in Ks, with a field of view of 28'' × 28''. Additional J and L' imaging and follow-up observations at a second epoch were obtained for 2MASS0652-57. Results: With a typical contrast ?Ks = 4.0-7.0 mag, our observations are sensitive down to the planetary mass regime considering a minimum age of 10 to 120 Myr for these systems. No additional point sources are detected in the environment of 2MASS0435-14, SDSS0443+00 and 2MASS0608-27 between 0.1-12'' (i.e. about 2 to 250 AU at 20 pc). 2MASS0652-57 is resolved as a ~230 mas binary. Follow-up observations reject a background contaminate, resolve the orbital motion of the pair, and confirm with high confidence that the system is physically bound. The J, Ks and L' photometry suggest a q ~ 0.7-0.8 mass ratio binary with a probable semi-major axis of 5-6 AU. Among the four systems, 2MASS0652-57 is probably the less constrained in terms of age determination. Further analysis would be necessary to confirm its youth. It would then be interesting to determine its orbital and physical properties to derive the system's dynamical mass and to test evolutionary model predictions. Based on observations collected at the European Southern Observatory, Chile (ESO programmes 076.C-0554(A), 076.C-0554(B) and 085.C-0257(A).

Chauvin, G.; Faherty, J.; Boccaletti, A.; Cruz, K.; Lagrange, A.-M.; Zuckerman, B.; Bessell, M. S.; Beuzit, J.-L.; Bonnefoy, M.; Dumas, C.; Lowrance, P.; Mouillet, D.; Song, I.

2012-12-01

450

Digital Libraries Based on Full-Text Retrieval.  

ERIC Educational Resources Information Center

This paper discusses the indexing, collection, and maintenance processes, as well as the retrieval interface, to public digital libraries. The paper begins by briefly surveying both Internet technical report collections and World Wide Web search engines. It goes on to describe a prototype digital library, the New Zealand Digital Library for…

Witten, Ian H.; Nevill-Manning, Craig G.; Cunningham, Sally Jo

451

Building Earth's Largest Library: Driving into the Future.  

ERIC Educational Resources Information Center

Examines the Amazon.com online bookstore as a blueprint for designing the world's largest library. Topics include selection; accessibility and convenience; quality of Web sites and search tools; personalized service; library collection development, including interlibrary loan; library catalogs and catalog records; a circulation system; costs;…

Coffman, Steve

1999-01-01

452

Cell Libraries  

NASA Technical Reports Server (NTRS)

A NASA contract led to the development of faster and more energy efficient semiconductor materials for digital integrated circuits. Gallium arsenide (GaAs) conducts electrons 4-6 times faster than silicon and uses less power at frequencies above 100-150 megahertz. However, the material is expensive, brittle, fragile and has lacked computer automated engineering tools to solve this problem. Systems & Processes Engineering Corporation (SPEC) developed a series of GaAs cell libraries for cell layout, design rule checking, logic synthesis, placement and routing, simulation and chip assembly. The system is marketed by Compare Design Automation.

1994-01-01

453

Collection Metadata Solutions for Digital Library Applications  

NASA Technical Reports Server (NTRS)

Within a digital library, collections may range from an ad hoc set of objects that serve a temporary purpose to established library collections intended to persist through time. The objects in these collections vary widely, from library and data center holdings to pointers to real-world objects, such as geographic places, and the various metadata schemas that describe them. The key to integrated use of such a variety of collections in a digital library is collection metadata that represents the inherent and contextual characteristics of a collection. The Alexandria Digital Library (ADL) Project has designed and implemented collection metadata for several purposes: in XML form, the collection metadata "registers" the collection with the user interface client; in HTML form, it is used for user documentation; eventually, it will be used to describe the collection to network search agents; and it is used for internal collection management, including mapping the object metadata attributes to the common search parameters of the system.

Hill, Linda L.; Janee, Greg; Dolin, Ron; Frew, James; Larsgaard, Mary

1999-01-01

454

Searching CINAHL and MEDLINE Tutorial  

Microsoft Academic Search

This 20 min. tutorial, done in Adobe Captivate software, is designed to walk nursing students through both keyword and subject heading searching in the CINAHL and MEDLINE databases, as configured at IPFW Helmke Library.

Shannon F Johnson

2009-01-01

455

Land Treatment Digital Library  

USGS Publications Warehouse

A dynamic system to enter, store, retrieve, and analyze Federal land-treatment data. More information and access to data available at: http://greatbasin.wr.usgs.gov/ltdl Across the country, public land managers make hundreds of decisions each year that influence landscapes and ecosystems within the lands they manage. Many of these decisions involve vegetation manipulations known as land treatments. Land treatments include activities such as removal or alteration of plant biomass, seeding burned areas, and herbicide applications. Data on these land treatments are usually stored at local offices, and gathering information across large spatial areas can be difficult. There is a need to centralize and store treatment data for Federal agencies involved in land treatments because these data are useful to land managers for policy and management and to scientists for developing sampling designs and studies. The Land Treatment Digital Library (LTDL) was created by the U.S. Geological Survey (USGS) to catalog information about land treatments on Federal lands in the western United States for all interested parties. The flexible framework of the library allows for the storage of a wide variety of data in different formats. The LTDL currently stores previously established land treatments or what often are called legacy data. The project was developed and has been refined based on feedback from partner agencies and stakeholders, with opportunity for the library holdings to expand as new information becomes available. The library contains data in text, tabular, spatial, and image formats. Specific examples include project plans and implementation reports, monitoring data, spatial data files from geographic information systems, digitized paper maps, and digital images of land treatments. The data are entered by USGS employees and are accessible through a searchable web site. The LTDL can be used to respond to information requests, conduct analyses and other forms of information syntheses, produce maps, and generate reports for DOI managers and scientists and other authorized users.

Pilliod, David

2009-01-01

456

Wrong Way: Go Back! An Exploration of Novice Search Behaviours While Conducting an Information Search.  

ERIC Educational Resources Information Center

Discussion of user-managed online search processes in libraries and the search strategies of novices focuses on a study of Western Australia undergraduates while they performed an information search task. Considers measurement of search behavior and reports results that showed problems in formulating an effective search strategy and the need for…

Debowski, Shelda

2001-01-01

457

Exploratorium: Digital Library  

NSDL National Science Digital Library

Over the past decade, the Scout Report has reported on many of the websites created by the Exploratorium, and as each one is truly a delight, this one was a welcome find as well. Their Digital Library site brings together digital media and digitized museum materials related to interactive exhibits and scientific phenomena, such as images and a host of educational activities. Two good places to start exploring are the Asset Archive and the Learning Resources Collection. In the Asset Archive, visitors can find many of these materials quite easily, and they include demonstrations of physical properties of objects and images that deal with biological exploration. The Learning Resources Collection is a resource for K-12 educators that will surely delight both due to its broad ambit and the quality of the materials. The site is rounded out by a number of special collections, such as the Microscope Imaging Station, which contains media created from living organisms.

458

The Library and the Independent Adult Learner: An Annotated Bibliography.  

ERIC Educational Resources Information Center

Based on bibliographies in Arthur Chickering's "The Modern American College," a search in the ERIC database, a manual search in "Library Literature," and additional sources, this annotated bibliography presents 57 items on the evolving relationship between the independent adult learner and the public library. These sources of information examine…

Donegan, Patricia Morris

459

A Review of the Status of 20 Digital Libraries.  

ERIC Educational Resources Information Center

Provides a review of 20 digital libraries from around the world. Examines library objectives; funding, including the role of government and private sector organizations; subject coverage; collections; information storage and retrieval; search features; access to the collections; output formats; and sorting search output. (LRW)

Meyyappan, N.; Chowdhury, G. G.; Foo, Schubert

2000-01-01

460

Desktop search in the intranet with integrated desktop search engines  

Microsoft Academic Search

The desktop search is a technology more and more popular in computer experience. A desktop search software, like Google desktop search, could offer us a quick service for searching information by building sorted index for the files, images, and other catalogs. But for enterprise, it is not enough only to search in local computer. Sometimes the useful information like meeting

Wei Lun Huang; Tzao Lin Lee; Chiao Szu Liao

2008-01-01

461

ELNET--The Electronic Library Database System.  

ERIC Educational Resources Information Center

ELNET (Electronic Library Network), a Japanese language database, allows searching of index terms and free text terms from articles and stores the full text of the articles on an optical disc system. Users can order fax copies of the text from the optical disc. This article also explains online searching and discusses machine translation. (LRW)

King, Shirley V.

1991-01-01

462

Evaluation of a Public Library Workshop  

Microsoft Academic Search

Individuals aged 55 and older represent the fastest-growing Internet user group. They are also at higher risk for cancer. Consumer health librarians can teach seniors effective Internet search strategies to access accurate and reliable cancer information. Four Internet workshops were conducted at the Kitchener Public Library with 44 community-dwelling older adults aged 50 to 75. Participants learned how to search

Laurie Hoffman-Goetz; Daniela B. Friedman; Ann Celestine

2006-01-01

463

Bringing treasures to the surface: iterative design for the Library of Congress National Digital Library Program  

Microsoft Academic Search

The Human-Computer Interaction Lab worked with a team for the Library of Congress (LC) to develop and test inter- face designs for LC's National Digital Library Program. Three iterations are described and illustrate the progres- sion of the project toward a compact design that minimizes scrolling and jumping and anchors users in a screen space that tightly couples search and

Catherine Plaisant; Gary Marchionini; Tom Bruns; Anita Komlodi; Laura Campbell

1997-01-01

464

Iterative Design for the Library of Congress National Digital Library Program  

Microsoft Academic Search

The Human-Computer Interaction Lab worked with a team for the Library of Congress (LC) to develop and test inter- face designs for LC's National Digital Library Program. Three iterations are described and illustrate the progres- sion of the project toward a compact design that minimizes scrolling and jumping and anchors users in a screen space that tightly couples search and

Catherine Plaisant; Gary Marchionini; Tom Bruns; Anita Komlodi; Laura Campbell

465

Matching word images for content-based retrieval from printed document images  

Microsoft Academic Search

As large quantity of document images is getting archived by the digital libraries, there is a need for an efficient search\\u000a strategies to make them available as per users information need. In this paper, we propose an effective word image matching\\u000a scheme that achieves high performance in the presence of script variability, printing variation, degradation and word-form\\u000a variants. A novel

Million Meshesha; C. V. Jawahar

2008-01-01

466

Deutsches Museum Library.  

ERIC Educational Resources Information Center

This history of the Library of the Deutsches Museum (Munich, Germany) covers the library's situation at end of the nineteenth century, library collections and buildings, use of the library for research, the rare book collection, and service statistics. Library director, collection and staff size, and main subjects collected are included. (EJS)

Berninger, Ernst H.; Reineke, Eva

1986-01-01

467

Library Research and Statistics.  

ERIC Educational Resources Information Center

Provides nine articles: research on libraries and librarianship, 1997; changing faces of library education (ALA-accredited graduate program title changes); number of libraries in the U.S., Canada, and Mexico; highlights of NCES surveys; library acquisition expenditures; price indexes for public and academic libraries; state rankings of selected…

Lynch, Mary Jo; Brier, David J.; Lebbin, Vickery K.; Halstead, Kent; Fox, Bette-Lee; Kremen, Maya L.; Miller, Marilyn L.; Shontz, Marilyn L.

1998-01-01

468

Lithuanian Library History.  

ERIC Educational Resources Information Center

Reviews the history of libraries in Lithuania from 1940 to 1992. Highlights include early book collections, and attitudes toward books and reading; changes after the Soviet invasion, including censorship, lack of timeliness, and information barriers; library networks; library education; research trends; library legislation; library literature; and…

Gudauskas, Renaldas

1994-01-01

469

Marketing the Virtual Library  

ERIC Educational Resources Information Center

Far more people are familiar with their local public or college library facility than their library's website and online resources. In fact, according to a recent survey, 96% of Americans said they had visited a library in person, but less than one-third have visited their online library. Since everyone agrees that online library resources are…

Fagan, Jody Condit

2009-01-01

470

Library Services. Miscellaneous Papers.  

ERIC Educational Resources Information Center

Papers on library journal cooperation, interlibrary lending,